CN1332735C - Cooled tubes arranged to form impact type particle separators - Google Patents
Cooled tubes arranged to form impact type particle separators Download PDFInfo
- Publication number
- CN1332735C CN1332735C CNB2005101133139A CN200510113313A CN1332735C CN 1332735 C CN1332735 C CN 1332735C CN B2005101133139 A CNB2005101133139 A CN B2005101133139A CN 200510113313 A CN200510113313 A CN 200510113313A CN 1332735 C CN1332735 C CN 1332735C
- Authority
- CN
- China
- Prior art keywords
- type particle
- collision type
- particle separator
- cooling tube
- cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002245 particle Substances 0.000 title claims abstract description 187
- 238000001816 cooling Methods 0.000 claims abstract description 195
- 239000007787 solid Substances 0.000 claims abstract description 44
- 239000003546 flue gas Substances 0.000 claims abstract description 37
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000007789 gas Substances 0.000 claims abstract description 24
- 239000000919 ceramic Substances 0.000 claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 claims abstract description 18
- 239000002184 metal Substances 0.000 claims abstract description 18
- 230000003628 erosive effect Effects 0.000 claims abstract description 12
- 238000005507 spraying Methods 0.000 claims abstract description 6
- 239000012530 fluid Substances 0.000 claims description 32
- 239000011819 refractory material Substances 0.000 claims description 25
- 239000002826 coolant Substances 0.000 claims description 20
- 230000003134 recirculating effect Effects 0.000 claims description 20
- 241001124569 Lycaenidae Species 0.000 claims description 17
- 235000014987 copper Nutrition 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 238000005253 cladding Methods 0.000 claims description 6
- 230000003647 oxidation Effects 0.000 claims description 5
- 238000007254 oxidation reaction Methods 0.000 claims description 5
- 230000002829 reductive effect Effects 0.000 claims description 5
- 230000000670 limiting effect Effects 0.000 claims description 4
- 230000011218 segmentation Effects 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims 1
- 238000005266 casting Methods 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 description 8
- 239000012809 cooling fluid Substances 0.000 description 7
- 230000008676 import Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000004807 localization Effects 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229910002065 alloy metal Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000007115 recruitment Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011257 shell material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
- B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
- B65D77/06—Liquids or semi-liquids or other materials or articles enclosed in flexible containers disposed within rigid containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D21/00—Nestable, stackable or joinable containers; Containers of variable capacity
- B65D21/08—Containers of variable capacity
- B65D21/086—Collapsible or telescopic containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/42—Applications of coated or impregnated materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements or dispositions of combustion apparatus
- F22B31/0007—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements or dispositions of combustion apparatus with combustion in a fluidized bed
- F22B31/0084—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements or dispositions of combustion apparatus with combustion in a fluidized bed with recirculation of separated solids or with cooling of the bed particles outside the combustion bed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/02—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed
- F23C10/04—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone
- F23C10/08—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Cyclones (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Separating Particles In Gases By Inertia (AREA)
Abstract
Apparatus for separating solids from flue gas in a circulating fluidized bed (CFB) boiler comprises plural vertical, impact type particle separators made of cooling tubes located within the CFB in a plurality of staggered rows. One embodiment employs a plurality of stacked, slip fit elements having apertures which accept the cooling tubes. The slip fit elements cooperate with one another to form a collecting channel, typically U-shaped, which separates particles from flue gases conveyed across the particle separators. Shiplap joints in betwee n the individual slip fit elements prevent gas and solids from leaking therebetween and allow for thermal expansion. Alternatively, the impact type particle separators comprise cooling tubes connected to one another to form a unitary structure. Pin studs welded to the cooling tubes a nd covered with a coating of refractory; ceramic tiles; metal or ceramic spray coatings; metal or ceramic castings; weld overlay; and/or shields provide erosion resistance.
Description
The application is for dividing an application, and its female case is to be No. 02120467.5 application on May 24th, 2002 applying date, and its denomination of invention is " arranging the cooling tube that forms collision type particle separator ".
The reference clauses and subclauses of related application
The application is that the title of submitting on July 10th, 2000 is the extendible portion application of the U. S. application series number 09/613,132 of " the particulate trap passage that has the cooled interior element in the CFB boiler ".The application of this series number 09/613,132 is quoted at this with for referencial use.Except that stating in addition, the definition of term is effective equally to the content that this paper discloses in the application serial no 09/613,132.
Technical field
The present invention relates generally to recirculating fluidized bed (CFB) field of boilers, relates in particular to the improved collision type particle separator structure that is made of the fluid cooling tube.
Background technology
The CFB steam generator system is known, and this steam generator system is used to produce the steam of industrial processes and/or generating usefulness.United States Patent(USP) Nos. 5,799,593,4 referring to people such as for example Belin, 992,085 and 4,891,052, people's such as James United States Patent(USP) Nos. 5,809,940, people's such as Daum United States Patent(USP) Nos. 5,435,820 and 5,378,253 and people's such as Alexander United States Patent(USP) Nos. 5,343,830.In the CFB reactor, being brought in the shell of reactor by the air-flow that makes progress of reaction with nonreactive solid, the air-flow that wherein makes progress takes solid the outlet of the top of reactor to, and here solid separates by the particle separator of collision type.Collision type particle separator is placed with staggered array, thus present a kind of air-flow can by but the intransitable path of the particle of being with.The solid of collecting is got back to the bottom of reactor.A CFB boiler plant can use a plurality of collision type particle separators (or concave surface impact structure or U-shaped beam) at the stove exit place, thereby particle is isolated from flue gas.These separators can have multiple structure, because their cross section is the U-shaped structure the most commonly, so be commonly called the U-shaped beam.
When a plurality of these type of collision type particle separators are applied to the CFB boiler, they are supported in the stove shell, and vertically extend through the stove exit opening with at least two rows, and the particle of collecting will be unblocked and be dropped on along the back shell wall without ground and to collect below the member.Aliging with last row or back one row's U-shaped beam in gap between each phase adjacency pair of U-shaped beam among one row, is used for the zigzag path that flue gas/solid passes through thereby present.U-shaped beam among each row is collected from the fluid of flue gas/solid and is removed except that particle, and fuel gas stream then centers on continuously and flows by the U-shaped beam array.
The gathering element of these class shapes is compared usually relative longer with their width with the degree of depth.The shape of gathering element is subjected to the regulation of two aspect factors usually: promptly, and the ability of the collection efficiency of U-shaped Liangqi itself and U-shaped beam self-supporting.When using these elements, they are placed in the exit of stove usually, and do not add cooling.The exit that they are in stove can prevent that the area of heating surface in downstream from being corroded by solids.Therefore, the U-shaped beam can be exposed in the high temperature of fluid of flue gas/solid, and the used material of U-shaped beam must be enough heat-resisting, so that enough supporting and vandal-proof drags to be provided.
Corrosion resistant plate passage long, self-supporting by successfully as on the main solid collector in the CFB boiler, but " creep " intensity of commercial adoptable suitable alloy has limited the length of gathering element.By long gathering element being divided into the part of some weak points, because the supporting member of a series of interruptions and the less weight of any single part or element, the desirable strength of the part that each is short is than long air flue much less.
The method for production that is cooled or supports the gathering element of a cooling structure usually comprises some collecting boaries and water cooling support column is welded together.Referring to people's such as Daum United States Patent(USP) Nos. 5,378,253 and 5,435,820.Yet the welding of cooling tube can be increased in the probability of the tube leak of weld generation.
In addition, with this known design structure, because cooling tube is only approaching at some parts to the collection channel section or the element of setting, thereby the cooling meeting imbalance of gathering element.Like this, because gathering element is than cooled region and the different expansion between the heat part, the plate that forms gathering element can be tending towards distortion.
In addition, must be to safeguard measure being taked in the erosion that pipe itself causes by the impact solids that are entrained in the solid/gas stream.The pipe shield that safeguard measure can adopt stainless steel or pottery to make, and shield must use along the whole height of gatherer, this will further increase cost.
Summary of the invention
The present invention includes the allocation plan of various fluid cooling tubes, these cooling tubes are used for forming collision type particle separator, and they are generally U-shaped, but also can be W shape, E shape, V-arrangement or other shape.This type of collision type particle separator can be used in particular in recirculating fluidized bed (CFB) boiler or the reactor.
Therefore, one aspect of the present invention relates to a kind of being used for from the device of the flue gas separating solids of recirculating fluidized bed (CFB) boiler.This device comprises: a plurality of vertical collision type particle separators that are positioned at recirculating fluidized bed, these collision type particle separators are adjacent to be provided with, and in the arrangement that two rows stagger mutually, laterally be spaced from each other at least, each collision type particle separator comprises a plurality of vertical cooling tubes, can carry cooling medium by these cooling tubes, form a single collision type particle and divide but that a plurality of cooling tubes of device are interconnected to form an overall structure, and wherein at least one cooling tube in single collision type particle separator is bent and arranges in its underpart and forms a pan, gets around round the lower end of collision type particle separator to prevent gas.
Another aspect of the present invention relates to a kind of being used for from the device of separate solid particles the flue gas of recirculating fluidized bed (CFB) boiler, this device comprises: the vertical collision type particle separator of a plurality of CFB of being positioned at, these collision type particle separators are adjacent to be provided with, and in the arrangement that two rows stagger mutually, laterally be spaced from each other at least, each collision type particle separator comprises a plurality of vertical cooling tubes, can carry cooling medium by these cooling tubes, the a plurality of cooling tubes that form a single collision type particle separator are interconnected to form an overall structure, and a plurality of cooling tubes that wherein, form single collision type particle separator comprise a herringbone gathering element.
Another aspect of the present invention relates to a kind of being used for from the device of the flue gas separate solid particles of recirculating fluidized bed (CFB) boiler.In this embodiment, this device comprises: the vertical collision type particle separator of the gas path of a plurality of CFB of being positioned at, these collision type particle separators are adjacent to be provided with, and in the arrangement that two rows stagger mutually, laterally be spaced from each other at least, each collision type particle separator comprises a plurality of vertical cooling tubes, can carry cooling medium by these cooling tubes, have at least three adjacent cooling tubes to form each side of each separator, the a plurality of cooling tubes that form single collision type particle separator interconnect by intervalve location-plate or bar, and intervalve location-plate or bar weld between adjacent cooling tube and along cooling tube at least intermittently, to form an overall structure, wherein, when the CFB boiler used, the maximum temperature of location-plate or bar was no more than the oxidation limiting temperature of the material that forms diaphragm rod.
Another embodiment of the present invention relates to a kind of being used for from the device of separate solid particles the flue gas of recirculating fluidized bed (CFB) boiler, this device comprises: the vertical collision type particle separator of a plurality of CFB of being positioned at, these collision type particle separators are adjacent to be provided with, and in the arrangement that two rows stagger mutually, laterally be spaced from each other at least, each collision type particle separator comprises a plurality of vertical cooling tubes, can carry cooling medium by these cooling tubes, the cooling tube of a plurality of formation one single collision type particle separators is interconnected to form an overall structure, wherein, the a plurality of cooling tubes that form single collision type particle separator comprise a herringbone gathering element, this herringbone gathering element comprises with predetermined distance and is welded to some fin on the cooling tube, to provide zigzag path to the flue gas/solid particle flows that enters.
Above-mentioned herringbone gathering element has a first and a second portion, and this first is basic in use extends abreast with flue gas and solids fluid, and second portion links to each other with first, and has the shape of one of arc and segmentation shape.
Cooling tube is provided with the anti-erosion device, and these devices are made of a kind of in following at least: a plurality of fin plush coppers, and these plush coppers are welded with cooling tube, and are covered with the refractory material cover layer; Ceramic Tiles; Metal or ceramic spray coating; Metal or ceramic foundry goods; Overlay cladding; And shield.
In addition, the invention still further relates to a kind of being used for from the device of separate solid particles the flue gas of recirculating fluidized bed (CFB) boiler, this device comprises: the vertical collision type particle separator of a plurality of CFB of being positioned at, these collision type particle separators are adjacent to be provided with, and in the arrangement that two rows stagger mutually, laterally be spaced from each other at least, each collision type particle separator comprises a plurality of vertical rectangular cooling tube elements, can carry cooling medium by these cooling tube elements, these rectangle cooling tube elements are welded to each other to form an overall structure.
In addition, the invention still further relates to a kind of being used for from the device of separate solid particles the flue gas of recirculating fluidized bed (CFB) boiler, this device comprises: the vertical collision type particle separator of the gas path of a plurality of CFB of being positioned at, these collision type particle separators are adjacent to be provided with, and in the arrangement that two rows stagger mutually, laterally be spaced from each other at least, each collision type particle separator comprises a plurality of vertical cooling tubes, can carry cooling medium by these cooling tubes, wherein, the a plurality of cooling tubes that form single collision type particle separator are the omega pipe, and these pipes interconnect to form an overall structure.
In addition, the invention still further relates to a kind of being used for from the device of separate solid particles the flue gas of recirculating fluidized bed (CFB) boiler, this device comprises: the vertical collision type particle separator of the gas path of a plurality of CFB of being positioned at, these collision type particle separators are adjacent to be provided with, and the arrangement of staggering mutually with two rows laterally is spaced from each other at least, each collision type particle separator comprises a plurality of vertical cooling tubes, can carry cooling medium by these cooling tubes, have at least three cooling tubes to form each side of each separator, the a plurality of cooling tubes that form a single collision type particle separator are interconnected to form an overall structure, wherein, the bottom of each cooling tube is provided with a diameter and reduces part, to prevent the erosion to the bottom.
This device comprises the Ceramic Tiles of the one-tenth setting of the reduced diameter portion branch that covers each cooling tube, is etched to prevent described part.
In appending claims of the present invention, will at large point out to constitute the various features of novelty of the present invention.In order to understand the present invention better and to use operational advantages that the present invention can reach and special benefit, can be with reference to accompanying drawing and to the description of preferred embodiment of the present invention.
Brief description of drawings
Accompanying drawing is respectively:
Fig. 1 is a kind of schematic diagram of CFB boiler design of known employing one collision type particle separator system;
Fig. 2 be along group U-shaped beam in the stove among the observed Fig. 1 of the direction of arrow 2-2 sectional view;
Fig. 3 is the vertical view according to one first embodiment of single U-shaped beam collision type particle separator of the present invention;
Fig. 4 is the right view along the U-shaped beam collision type particle separator among the observed Fig. 3 of the direction of arrow 4-4;
Fig. 5 is the rearview along the U-shaped beam collision type particle separator among the observed Fig. 3 of the direction of arrow 5-5;
Fig. 6 is the vertical view according to second embodiment of single U-shaped beam collision type particle separator of the present invention;
Fig. 7 is the left view along the U-shaped beam collision type particle separator among the observed Fig. 6 of the direction of arrow 7-7;
Fig. 8 is the rearview along the U-shaped beam collision type particle separator among the observed Fig. 6 of the direction of arrow 8-8;
Fig. 9 is the right view along the U-shaped beam collision type particle separator among the observed Fig. 6 of the direction of arrow 9-9;
Figure 10 is the vertical view according to single U-shaped beam collision type particle separator 1 the 3rd embodiment of the present invention;
Figure 11 is the left view along the U-shaped beam collision type particle separator of observed Figure 10 of direction of arrow 11-11;
Figure 12 is the rearview along the U-shaped beam collision type particle separator of observed Figure 10 of direction of arrow 12-12;
Figure 13 is the right view along the U-shaped beam collision type particle separator of observed Figure 10 of direction of arrow 13-13;
Figure 14 is the side view according to another embodiment of U-shaped beam collision type particle separator device of the present invention;
Figure 15 is the single U-shaped beam collision type particle separator sectional view along observed Figure 14 of direction of arrow 15-15;
Figure 16 is the side view of Figure 14 bottom;
Figure 17 is the sectional view along the bottom of the U-shaped beam collision type particle separator device of observed Figure 16 of direction of arrow 17-17;
Figure 18 is the side view of another kind of embodiment of bottom of the U-shaped beam collision type particle separator device of Figure 14;
Figure 19 is the side view of another kind of embodiment on the U-shaped beam collision type particle separator device top of Figure 14;
Figure 20 is the sectional view of a collision type particle separator device, wherein shows a kind of interconnected of V-arrangement gathering element;
Figure 21 is the side view of another kind of embodiment of the present invention, and this embodiment has adopted a herringbone gathering element;
Figure 22 is the sectional view along the herringbone gathering element structure of observed Figure 21 of direction of arrow 22-22;
Figure 23 is the sectional view of the single herringbone gathering element of Figure 21 and class shape shown in Figure 22;
Figure 24 is the sectional view along the observed deflecting plates of the direction of arrow 24-24, and this deflecting plates is used in the herringbone gathering element structure of Figure 21 and Figure 22;
Figure 25 is the sectional view of a single U-shaped beam collision type particle separator, and wherein cooling tube is made of omega pipe according to the present invention;
Figure 26 A is the sectional view of the single omega pipe of used class shape among the embodiment of Figure 25;
Figure 26 B is the sectional view of the mode of the omega pipe among the another kind of embodiment that is implemented in Figure 25, and this embodiment has used plain end pipe and diaphragm rod;
Figure 27 is the be slidingly matched sectional views of foundry goods of two interlockings, and this is according to the present invention, and they can be set on the cooling tube, form a single U-shaped beam collision type particle separator to improve anti-erosion power;
Figure 28 is the sectional view of single U-shaped beam collision type particle separator, and wherein according to the present invention, cooling tube is provided with the protection foundry goods that is attached thereto to improve anti-erosion power;
Figure 29 is the partial cross section figure of single U-shaped beam collision type particle separator, and wherein according to the present invention, cooling tube is provided with the protection foundry goods of bolting to improve anti-erosion power;
Figure 30 is the part side view along the observed single U-shaped beam collision type particle separator of the direction of the arrow 30-30 among Figure 29;
Figure 31 is the sectional view according to another staggered embodiment of herringbone gathering element of the present invention;
Figure 32 is the sectional view of the single herringbone gathering element of class shape shown in Figure 31, and according to the present invention, this gathering element is provided with erosion-resistant refractory material;
Figure 33 is the sectional view of the single herringbone gathering element of class shape shown in Figure 31, and according to the present invention, this gathering element is provided with a stainless steel material that surrounds to improve anti-erosion power;
Figure 34 is the sectional view of the single herringbone gathering element of class shape shown in Figure 31, and according to the present invention, cooling tube is wherein surrounded to improve anti-erosion power by the cast metal;
Figure 35 is the vertical view of another embodiment of a single U-shaped beam collision type separator, and according to the present invention, this particle separator is by being used to carry the rectangular duct material of cooling fluid to constitute;
Figure 36 A is the lower part stereogram according to single U-shaped beam collision type separator of the present invention, and wherein, the lower flow of adjacent cooling tube interconnects the elbow to form 180 ° with connecting;
Figure 36 B is the stereogram according to the bottom of single U-shaped beam collision type separator of the present invention, and wherein, the lower end fluid of the cooling tube of the opposite side of formation U-shaped beam interconnects the elbow to form 180 ° with connecting;
Figure 37 is the stereogram according to the bottom of single U-shaped beam collision type separator of the present invention, and wherein, the lower end fluid of cooling tube connects ground and links to each other near the common manifold above the floor of gas path;
Figure 38 is the side view according to the bottom of single U-shaped beam collision type separator of the present invention, and wherein, the lower end fluid of cooling tube connects ground and links to each other with the common manifold near the below on the floor of gas path;
Figure 39 is the stereogram according to the another kind of embodiment of of the present invention one single U-shaped beam collision type particle separator, and wherein, the bottom of each cooling tube is provided with one and prevents the reduced diameter portion branch that the bottom is corroded.
The specific embodiment
Term as used herein " the CFB boiler " refers to wherein can take place the CFB reactor or the combustion chamber of combustion process.Though the specific use CFB combustion chamber of quoting of the present invention need be understood that for the boiler or the steam generator of the device of generation heat the present invention also can be used for different CFB reactors at an easy rate.For example; the present invention can be applied in chemical reaction reactor; rather than be used for the reactor that combustion process is used; perhaps be used for and be provided to the reactor of reactor by the gas/solid granulate mixture that produces in other local combustion process to be further processed; perhaps be used for a kind of like this reactor; this reactor only provides a shell, and particle or solid particle are entrained in the gas in this shell, and this gas accessory substance of combustion process not necessarily.Similarly, for convenience of explanation, used term " U-shaped beam " in following argumentation, this term is from broadly referring to the particle separator that can collect and remove particle concave surface impact structure or collision type from the flue gas that has particle of any class shape.Specifically, collision type particle separator is an on-plane surface, they U-shaped, V-arrangement, E shape, W shape or any other have the shape of a concave surface or cup-shaped face, the fluid of oncoming flue gas and entrained particles is presented on this surface, can make member collect and remove particle from flue gas.
Then, with reference to accompanying drawing, wherein identical or functionally similar element is with identical label surface in institute's drawings attached, and Fig. 1 shows a stove with label 10 expressions, and this stove comprises that recirculating fluidized bed 12, exhaust duct 14 and particulate return 16.The burning of fuel is carried out in recirculating fluidized bed 12, and can produce hot waste gas or the flue gas that is full of particle matter.Hot gas rises by stove 10 and arrives exhaust ducts 14, is transported to atmosphere (not shown) before at gas, will pass and/or by some heating surfaces (for example superheater, reheater or economizer) 17 and cleaning stage from gas here.
The staggered collision type particle separator 20 of plurality of rows is oriented in the top of stove 10, and pushes up 26 from stove usually and begin supporting.First group of particle separator 22 is called as U-shaped beam 22 in the stove, and second group of particle separator 24 is provided with and is positioned at the downstream of stove exit, and this outlet is by schematically showing in the vertical dotted line of organizing between 22 and 24 among Fig. 1.The entrained particulates material can strike on the collision type particle separator 20 in flue gas, and particle matter therefrom separates and recirculating fluidized bed 12 is got back in direct free-falling, can reclaim the further burning or the reaction of particulate here.Generally speaking, collision type particle separator 20 is on-plane surfaces, and its cross section is preferably U-shaped, but they also can be V-arrangement, E shape, W shape or some similarly recessed structure or cup-like structure.
Fig. 2 is the sectional view of U-shaped beam 22 in the stove of group 22 in the stove that forms the U-shaped beam, and show many row's U-shaped beams 20 be how with respect to adjacent respectively arrange staggered.One flat board that forms pan or baffle plate 23 is arranged usually at the bottom of each U-shaped beam 20 in the group 22 in stove, and its purposes is to prevent that flue gas and entrained particles from walking around U-shaped beam 20.
Then, with reference to Fig. 3,4 and 5, wherein show first embodiment according to U-shaped beam collision type particle separator 20 of the present invention.Each U-shaped beam 20 is made of some cooling tubes 30, and these cooling tubes 30 can be cooled off by water, steam, both mixture or some other suitable cooling medium.Cooling tube 30 and the U-shaped beam that forms as a part with these cooling tubes 30 be as known U-shaped beam 20 perpendicular positionings shown in Fig. 1, and can be supported from the top 26 of stove 10.Form 30 1 then arrangements of cooling tube of single U-shaped beam 20, as shown in Figure 3, can form a single U-shaped beam with four cooling tubes 30, wherein each cooling tube 30 is positioned on each angle of U-shaped beam.The external diameter of these cooling tubes 30 (OD) is generally 1 ", certain caliber that also can use other.
Shown in Fig. 3,4 and 5, each U-shaped beam 20 also comprises a plurality of elements 50 that are slidingly matched with some holes 52, these holes 52 are positioned at part 57 (as shown in the figure, this part can be an enlarged, with around being contained in wherein cooling tube 30) in and can hold each cooling tube that forms a single U-shaped beam 20 30.Like this, the element 50 that is slidingly matched can center on each cooling tube 30, and forms a collection channel 60 by piling up mutually along the vertical height of U-shaped beam 20.Each element 50 that is slidingly matched that forms U-shaped beam 20 comprises a two side 54 and a rear wall 56.As shown in Figure 4 and Figure 5, each sidewall 54 and rear wall 56 are made of a plurality of perpendicular positioning parts 70, and this localization part 70 extends containing around between the part 57 in the hole 52 of cooling tube 30.The perpendicular positioning part 70 of a plurality of elements 50 that are slidingly matched is along the length setting of vertically extending cooling tube 30, and the collection channel 60 of the formation U-shaped beam 20 that mutually combines.
Lap-joint 80 or other similar bindiny mechanism can be set between perpendicular positioning part 70.Can prevent that at the top of each perpendicular positioning part 70 and the lap-joint 80 of bottom gas and solid particle from leaking between localization part 70, and allow perpendicular positioning portion size short-term and long-term expansion and contraction.
Like this, cooling tube 30 can provide a supporting member that is cooled, and can position and cool off localization part 70.Cooling tube 30 also can provide a kind of Temperature Distribution of symmetry of uniqueness along each localization part 70; but can not make deformed element, and the situation of this deformed element usually can occur when the asymmetric cooling owing to localization part 70 produces asymmetric Temperature Distribution situation.
Each element 50 that is slidingly matched can be made of alloy, pottery or other material with higher thermal resistance.In Fig. 3,4 and 5 embodiment, each element 50 that is slidingly matched comprises a single single piece, and this single piece comprises a two side 54 and a rear wall 56, and this single piece can be slided on cooling tube 30.This single single piece can be a cast member or an extrusion.Yet, be understandable that this element that is slidingly matched also can use other structure.
Then, with reference to Fig. 6,7,8 and 9, in another embodiment, each sidewall 54 and rear wall 56 are the elements that independently are slidingly matched, and like this, need three elements that independently are slidingly matched to form the single plane or the cross section part of U-shaped beams 20.End 57 is overlapping in lap-joint 80 with the hole 52 of each sidewall 54 and rear wall 56.
Then, with reference to Figure 10,11,12 and 13, in another embodiment, sidewall 54 and rear wall 56 can be formed by two elements 59 with L shaped cross section.The end of L shaped element 59 is overlapping at rear wall 56 places by lap-joint 80.
Shown in the embodiment in Fig. 6 and 10, except that four cooling tubes shown in Fig. 3, can also use extra cooling tube 30, to form, to support and cooling collection channel element.When the U-shaped beam 20 that needs large-size, when perhaps needing different cooling tubes 30, also can use this structure.In this way, can use material to form the element 50 that is slidingly matched, but can keep the Temperature Distribution of unique even weighing apparatus along the vertical height of each U-shaped beam 20 than low thermal resistance.
People's such as the Daum that formerly mentions United States Patent(USP) Nos. 5,378,253 and 5,435 has disclosed the gathering element that is cooled in 820, but wherein illustrated design fails to solve in most of commercial great practical difficulties that cause overslaugh of using.As patent ' 253 and ' 820 shown, each separator element only is made of four cooling tubes, and is welded with the diaphragm rod that extends collects part to form between cooling tube.The application of this design is caused the reason of following two aspects of having of serious restriction.The first, depend on that diaphragm rod ultimate oxidation temperature causes restriction to the Breadth Maximum of diaphragm rod when separator element is worked with the temperature among the CFB.Because the tube-cooled that diaphragm rod is attached thereto, so maximum diaphragm rod temperature occurs in the centre position between the pipeline that is linked to each other by diaphragm, and the temperature of this position must keep below the acceptable level of oxidation limiting temperature.This aspect can solve by the rod of metal alloy that use has a higher oxidation limiting temperature, perhaps even can use stainless steel tube and diaphragm rod, be understandable that, this method cost is very expensive, and in fact this and fail to provide the recruitment of more diaphragm rod Breadth Maximum for the designer.The second, be subjected to the result of diaphragm rod Breadth Maximum restriction, the actual size of single gathering element can be subjected to needed effectively and the restriction of the high collection performance requirement of cost performance.
On the contrary, the following example of the present invention has adopted three or more cooling tubes 126 at least in each side of each single resolution element 120, and forms the rear portion of each element 120 with the cooling tube 126 of respective numbers.Like this, the size of separator element 120 can not be subjected to the restriction of peak value diaphragm temperature, and separator element 120 can design greatly as far as possible as required.Because at the solid particle of collecting because filling is excessive solid particle towards the bottom of resolution element 120 downstream move " shedding " before, bigger cross sections in the single resolution element 120 can make more amount of solid stay the cross section " in ", because the use of large scale separator element 120 can realize the use of long separator, so this point is very important.In other words, resolution element 120 has long live part.The use of large-size resolution element 120 means that the number of needs/use is less, and this makes the CFB boiler can do narrowlyer (for given stove planar cross section area, the degree of depth of stove can do more), thereby reduces cost.
Figure 14 shows another embodiment according to U-shaped beam collision type particle separator of the present invention to Figure 24, and this particle separator label is 100, and this kind separator is particularly suitable for being used in the CFB boiler.Explanation once more, term " U-shaped beam " are to use for convenience of explanation, and this term is from broadly referring to collect and to remove the concave surface impact structure or the collision type particle separator of any class shape of particle from the flue gas that has particle.Specifically, this collision type particle separator is an on-plane surface, they can be that U-shaped, V-arrangement, E shape, W shape or any other have the shape of a concave surface or cup-shaped face, and this surface is present in the approaching flue gas and the fluid of entrained particles, can make member collect and remove particle from flue gas.
Then, get back to Figure 15, wherein show the sectional view of the single U-shaped beam collision type particle separator 120 of Figure 14.In this example, U-shaped beam gathering element is provided with a plurality of cooling tubes 126, and these cooling tubes 126 are the elementary contour of configuration formation gathering element mutually.In this example, used 12 cooling tubes 126 altogether, but according to the size of needed U-shaped beam, and, also can use more or less cooling tube 126 according to factors such as fluid cooling and pressure drops.Each cooling tube 126 in U-shaped beam 120 is provided with a plurality of plush coppers (stud) 132, and these plush coppers are welded on the pipe 126 along the length of cooling tube 126 and around its circumference, so that U-shaped beam 120 is used refractory material 134.The single pipeline 126 that forms a specific U-shaped beam also interconnects by intervalve location-plate or bar (for example diaphragm rod 136), these intervalve location-plates or bar are at least intermittently between adjacent cooling tube 126 and along the cooling tube welding, so that U-shaped beam 120 remains holistic fixing structure.Diaphragm rod 136 and plush copper 132 are conducted heats from refractory material 134 to cooling tube 126, and are conducted at the cooling medium such as water and/or steam of these heats of cooling tube 126 places by internal flow.Refractory material 134 can be installed on the U-shaped beam 120 by plant produced, and with the uniformity that reduces cost and guarantee to use, perhaps refractory material also can on-the-spotly be installed.
Figure 16 is the side view of Figure 14 bottom, wherein more specifically show can be used for to or supply with first embodiment of pipeline, collector and the manifold configuration of cooling fluids from U-shaped beam 120.The lower end of cooling tube 126 links to each other with a plurality of vertical manifold 138 fluids with connecting, and these vertical manifolds 138 and linking to each other that a collector 140 fluids connect.Explanation once more, this promptly can be an inlet header 140 and relevant inlet manifold 138, also can be an outlet header 140 and outlet manifold 138.In configuration shown in Figure 16, two rows' 122,124 U-shaped beam 120 is the part of equal modules, that is to say that they are supplied with from same manifold 138.The size of CFB and the transport restrictions of permission will determine the quantity of single U-shaped beam 120, and these U-shaped beams 120 can assemble, also can be transported to on-the-spot the installation more afterwards.Import or export pipeline 144 can be used and connect up as requested.
With reference to Figure 16 and Figure 17, another aspect of the present invention comprises the use of cooling tube 126, this cooling tube bends to a pan or baffle plate 142 in a suitable manner in the lower end of U-shaped beam, this baffle plate 142 will help to prevent that gas and entrained particles from walking around round the lower end 130 of U-shaped beam 120.Fluid cooling pan 142 also is provided with some plush coppers 132, and is covered with refractory material 134.According to the present invention, if desired, can use traditional pan or baffle plate 23 in the lower end of U-shaped beam 120.
Figure 18 is the side view of another embodiment of bottom that shows the U-shaped beam collision type particle separator device of Figure 14, and specifically, U-shaped beam 120 each row of front-seat 122 U-shaped beam 120 and back row 124 link to each other with single collector 138 fluids with connecting.Still can use those notions that those proposed before relating to the possible situation of bottom 130 as the import or export of the cooling medium that flows in the U-shaped beam 120.
Figure 19 shows the side view on the top 128 of the embodiment shown in Figure 18.Here as shown in the figure, the single import or export manifold 138 that is provided with for each row's U-shaped beam 120 of 122,124 links to each other with the import or export pipeline 144 that matches.
Figure 20 is the sectional view according to collision type particle separator device of the present invention, wherein shows the interconnected scheme of V-arrangement gathering element.Explanation once more, each cooling tube 126 is provided with a plurality of plush coppers 132, and these plush coppers are welded on the pipe 126 along the length of cooling tube 126 and around its circumference, so that U-shaped beam 120 is used refractory material 134.The single pipeline 126 that forms a given U-shaped beam also interconnects by diaphragm rod 136, and these diaphragm rods 136 are welded between the adjacent cooling tube 126 at least intermittently, so that it remains a fixing structure.Diaphragm 136 and plush copper 132 are conducted heats from refractory material 134 to cooling tube 126, and are conducted at the cooling medium such as water and/or steam of these heats of cooling tube 126 places by internal flow.Refractory material 134 can be installed on the U-shaped beam 120 by plant produced, and with the uniformity that reduces cost and guarantee to use, perhaps refractory material also can carry out the scene installation.
Figure 21 shows one embodiment of the invention to Figure 24, has used the configuration that is referred to as herringbone gathering element 150 usually among this embodiment.Each cooling tube 126 equally also is provided with a plurality of plush coppers 132, and these plush coppers are welded on the pipe 126 along the length of cooling tube 126 and around its circumference, so that herringbone gathering element 150 is used refractory material 134.The single pipeline 126 that forms a given herringbone gathering element 150 also interconnects by diaphragm rod 136, and these diaphragm rods 136 are welded between the adjacent cooling tube 126 at least intermittently, so that it remains a fixing structure.Diaphragm 136 and plush copper 132 are conducted heats from refractory material 134 to cooling tube 126, and at cooling tube 126 places, these heats are conducted by the cooling medium such as water and/or steam of internal flow.Refractory material 134 can be installed on the U-shaped beam 120 by plant produced, and with the uniformity that reduces cost and guarantee to use, perhaps refractory material also can on-the-spotly be installed.Herringbone gathering element 150 can be selectively be provided with one or more deflecting plates 152 along the vertical height of herringbone gathering element 150 is separated by a distance.These deflecting plates 152 are used for guiding the solids of collection to get back to herringbone gathering element 150.Preferably, connect a first 154 and a second portion 156 of herringbone gathering element 150 by welding, in the time of in for example being used in a CFB boiler, this first is basically parallel to flowing of flue gas and solids and extends, and second portion links to each other with first 154 and with respect to first's 154 angled θ ground extension.Angle θ is about 30 ° usually, but also can change between about 10 ° to 90 ° for cooperating a specific application.
Second portion 156 shown in Figure 22 and Figure 23 is a plane, but the present invention is not limited to this, and shown in the dotted line at A among Figure 23 and B place, this second portion 156 also can be shape and angled bending arc, segmentation.
Figure 23 shows single V-arrangement herringbone gathering element 150.As scheme shown in the C, those mutually in line gathering element 150 can connect at place, the end of first 154, perhaps they also can be separate.
The invention still further relates to the various structures of the anti-erosion power of the U-shaped beam collision type particle separator of the cooling of announcement herein that improve.In Figure 25, the cooling tube that forms single U-shaped beam 120 comprises the pipe that is called as omega pipe 160, and they weld together at 164 places as shown in the figure, thereby its cross section forms needed U-shaped beam.In shown embodiment, the size of omega pipe can " take advantage of 1 " for 1-3/8, and wall thickness is 3/16 ".Although the those skilled in the art that this type of omega pipe 60 is present technique fields are known, up to now, also do not recognize to have these class omega pipes 60 are used in precedent in this U-shaped beam collision type particle separator.Shown in Figure 26 A, each omega pipe is provided with a flow channel 161 and several ends 166, and these ends 166 are provided with chamfered portion so that with adjacent omega pipe welding 164.Shown in Figure 26 B, the omega pipe can use common tube 126 and realize effectively with the diaphragm rod 137 of pipe welded top.
Figure 27 shows two allocation plans with the movable foundry goods 170 in hole 162, and hole 162 wherein can hold and around cooling tube 126.Movable foundry goods 170 has positive portion 172 and private parts 174, so that the location of adjacent foundry goods.These foundry goods 170 can be made by the low-alloy metal material usually, but they also can be covered with " 309 " alloy in the surface, to improve its anti-erosion power.
Figure 28 shows a kind of allocation plan of protection foundry goods 180, and these protection foundry goods 180 preferably can be welded on the cooling tube 126 by the plug welding Ru 184 places shown in.The outer surface that except that leading edge, foundry goods 180 can have 1 " outer surface (overface), and foundry goods 182 can be provided with 1 ".As shown in the figure, the rear portion of the foundry goods of every kind shape can be bent, and its external diameter with the cooling tube that will be attached thereto is complementary.
Figure 29 and Figure 30 show a kind of allocation plan of protection foundry goods 190; this protection foundry goods 190 will be connected on the U-shaped beam collision type particle separator 120 by bolt 194, and bolt preferably passes through the maintenance diaphragm 136 or the intermetallic metal pipe location-plate of adjacent cooling tube 126 mutually.In foundry goods 190, hole 192 can be set.In two kinds of situations, foundry goods preferably all passed through diaphragm or intervalve location-plate.If wish, the plush copper that bolt 194 can be connected together with any face down bonding with diaphragm or intervalve location-plate replaces.As mentioned above, the foundry goods at leading edge place (not shown) preferably can carry out plug welding.
Figure 31 and Figure 32-34 shows another embodiment according to staggered herringbone gathering element of the present invention, and makes this embodiment improve the whole bag of tricks of anti-erosion power.Explanation can be provided with staggered collision type particle separator element once more, here, and the some groups of cooling tubes 126 of alignment link together as before (with intervalve location-plate or diaphragm 136).Fin 200 to be clocklike being welded on the cooling tube 126 at interval, thereby provides the winding raod footpath for the flue gas/solid particle fluid that enters.These cooling tubes can be provided with erosion-resistant refractory material (Figure 32), one around stainless steel shield 202 (Figure 33) (if desired, can have expansion slot), perhaps they also can be by cast metal or overlay cladding 204 around (Figure 34).
Figure 35 shows the another kind of embodiment of single U-shaped beam collision type particle separator 120, and according to the present invention, this embodiment is by being used to carry the rectangular tube 210 of cooling fluid to constitute.As shown in the figure, single tube element 210 can weld together at 212 places.Preferably, rectangular tube 210 can be made by carbon steel (SA-178Gr.C), as long as can keep metal temperature to be lower than the creep range (greater than 700 ) of used carbon steel by cooling fluid wherein.
Figure 36 A, 36B, 37 and Figure 38 show details according to the ad hoc structure of the lower end of single U-shaped beam collision type particle separator 120 of the present invention.For clear and definite, the erosion protective device to cooling tube 126 or any manifold 138 is not shown, need be understood that, this erosion protective device obviously can be set in practice.U.S. Patent No. 6 as people such as Alexander, 095, disclosed in 095, the content of this patent is quoted at this with for referencial use, the CFB structure is known, wherein in the exhaust uptake 14 in the downstream of stove exit, at least two exclusive U-shaped beams can be set, and the particle of collecting will be along the floor 220 returns (Figure 36 A of the present invention, 36B, 37 and 38).The sidepiece 222,224 of U-shaped beam 120 and rear portion 226 still are made of cooling tube 126.
The connection that fluid connects that can in all sorts of ways of the lower end 228 of cooling tube 126.For example Figure 36 A, 36B, 37 and Figure 38 shown in, extend at the near-end that is being located immediately at the floor 220 under the staggered plurality of rows collision type particle separator lower end 228 of cooling tube 126.Floor 220 has formed the exhaust uptake 14 of CFB boiler 10.In some cases, shown in Figure 36 A, the adjacent cooling tube 126 that forms collision type particle separator 120 (for example forms those cooling tubes of a sidepiece or the other side 222,224, perhaps form those cooling tubes at rear portion 226) the mutual fluid in lower end link to each other with connecting, make it form 180 ° elbow.Perhaps, shown in Figure 36 B, the lower end 228 mutual fluids of cooling tube 126 that form the relative both sides 222,224 of collision type particle separator 120 link to each other with connecting, to form 180 ° elbow.These configuration structures are simple relatively, but need be understood that, they can make the cooling collision type particle separator 120 can not draining.
As shown in figure 37, the lower end 228 that forms the cooling tube 126 of collision type particle separator 120 links to each other with a common manifold 138 fluids with connecting, this common manifold 138 is positioned at the near-end on the floor 220 of exhaust uptake 14, be the top that is positioned at floor 220 in this example, and Figure 38 shows an embodiment, and wherein manifold 138 is positioned at the below on floor 220.Need be understood that in practice, common manifold can partially or even wholly be embedded in the floor 220.More particularly, this design makes the separator 120 can draining, and the mixture that comes from the cooling fluid of each cooling tube can provide other some benefits, for example eliminates the imbalance of the inhomogeneous temperature that causes of heat that absorbs owing to single cooling tube 126.In addition, if desired, the design shown in Figure 38 makes can be better near the weld of each cooling tube 126 with menifold 138.
At last, Figure 39 shows the stereogram according to the another kind of embodiment of single U-shaped beam collision type particle separator 120 of the present invention, and wherein the bottom 228 of each cooling tube 126 is provided with a diameter and reduces part 250, is etched to prevent bottom 228.Present embodiment has adopted people's titles such as Walker U.S. Patent No. 6 for " to the wall protection of the solid particle of flow further downstream "; 044; 805 and disclosed PCT application WO00/68615 in the version of the notion that adopted, the content of these publications is quoted at this with for referencial use.In those publications, adopted a diameter to reduce part and eliminated the discontinuity that usually exists at the interface on wall ambient and separation wall construction.Yet as shown in figure 39, the bottom 228 of each cooling tube 126 is provided with a diameter and reduces part or zone 250 erosions that prevent U-shaped beam 120 bottoms 228.In order to realize this change, the diameter that the external diameter of each pipe 126 reduces in 260 place's die forgings to.As what in above-mentioned United States Patent (USP) 6,044,805 and WO00/68615 publication, disclosed, if desired, can be arranged to the refractory material 270 of definite shape at transition portion 250, and can eliminate the discontinuity that is present in erosion-resistant refractory material place usually.Divide below 250 in reduced diameter portion, erosion-resistant refractory material 134 equally also can be set down to the end of each U-shaped beam 120.
Therefore, be understandable that each U-shaped beam collision type particle separator element can be made of several cooling tubes, these cooling tubes interconnect, thereby make pipe remain on the appropriate location mutually relatively.In certain embodiments, cooling tube mutually combines by intervalve location-plate or bar or connects, and intervalve location-plate or bar weld between adjacent cooling tube and along cooling tube at least intermittently, to form an overall structure.Be used for guiding the solids of collection to get back to the deflecting plates of separator element, similar as the plate among Figure 24 152, can be used among any one embodiment of single U-shaped beam collision type particle separator.In all embodiment, must protect in case it is etched and corrodes the cooling tube of collision type particle separator element.Can adopt various measures to prevent that pipe is etched, in some cases, can on cooling tube, the use activity cooperate foundry goods, and in other cases, the material such as pottery or refractory material can be combined with pipe to reach the purpose of erosion protection.As mentioned above, and shown in the accompanying drawing of a part that forms content of the present invention, in certain embodiments of the present invention, can make fluid send into or be sent from the selected route of the relevant import of pipe and outlet and be connected and be considered to an important feature of the present invention.In some cases, import and outlet be connected the modular degree that will determine that the collision type particle resolution element can be produced, accelerate on-the-spot erection schedule thus and reduce cost.In another situation, in fact the specific part of these connections can form and realize the function of pan or baffle plate, and these pans or baffle plate are used to link to each other with a little class U-shaped beams, walk around round the end of collision type particle separator element to prevent gas.Certainly, need be understood that common metal pan that does not add cooling or baffle plate also can be used for said structure of the present invention.
More than illustrate and describe in detail more specific embodiment of the present invention, so that the application of principle of the present invention to be described, being skillful in those skilled in the art person should be appreciated that, under the situation that does not break away from these principles, to making various variations by the form of the present invention that following claims contained.For example, the present invention can be used to relate to the new structure of circulating fluid bed reactor or combustion chamber, perhaps is used for replacing, repairing or changing existing circulating fluid bed reactor or combustion chamber.In certain embodiments of the present invention, can use more specific features of the present invention reaching favourable purpose sometimes, and correspondingly not use other some features.Therefore, all this type of variation and embodiment ought drop in the scope of following claims fully.
Claims (32)
1. one kind is used for from the device of separate solid particles the flue gas of recirculating fluidized bed (CFB) boiler, this device comprises: the vertical collision type particle separator of a plurality of CFB of being positioned at, these collision type particle separators are adjacent to be provided with, and in the arrangement that two rows stagger mutually, laterally be spaced from each other at least, each collision type particle separator comprises a plurality of vertical cooling tubes, can carry cooling medium by these cooling tubes, form a single collision type particle and divide but that a plurality of cooling tubes of device are interconnected to form an overall structure, and wherein at least one cooling tube in single collision type particle separator is bent and arranges in its underpart and forms a pan, gets around round the lower end of collision type particle separator to prevent gas.
2. device as claimed in claim 1 is characterized in that, the cross section of vertical collision type particle separator can be the structure of U-shaped, E shape, W shape, V-arrangement or concave surface or cup-shaped.
3. device as claimed in claim 1, it is characterized in that, the a plurality of cooling tubes that form single collision type particle separator interconnect by intervalve location-plate or bar, these intervalve location-plates or bar are at least intermittently between adjacent cooling tube and along these cooling tube welding, to form whole structure.
4. device as claimed in claim 1 is characterized in that, at least two rows' cooling tubes link to each other with a public manifold fluid in the upper and lower of collision type particle separator with connecting.
5. device as claimed in claim 1 is characterized in that, at least two rows' cooling tube independently links to each other to the perforation of manifold fluid with one in the upper and lower of collision type particle separator.
6. device as claimed in claim 1 is characterized in that cooling tube is provided with the anti-erosion device, and these devices are made of a kind of in following at least: a plurality of fin plush coppers, and these plush coppers are welded with cooling tube, and are covered with the refractory material cover layer; Ceramic Tiles; Metal or ceramic spray coating; Metal or ceramic foundry goods; Overlay cladding; And shield.
7. one kind is used for from the device of separate solid particles the flue gas of recirculating fluidized bed (CFB) boiler, this device comprises: the vertical collision type particle separator of a plurality of CFB of being positioned at, these collision type particle separators are adjacent to be provided with, and in the arrangement that two rows stagger mutually, laterally be spaced from each other at least, each collision type particle separator comprises a plurality of vertical cooling tubes, can carry cooling medium by these cooling tubes, the a plurality of cooling tubes that form a single collision type particle separator are interconnected to form an overall structure, and a plurality of cooling tubes that wherein, form single collision type particle separator comprise a herringbone gathering element.
8. device as claimed in claim 7, it is characterized in that, the herringbone gathering element has a first and a second portion, basic in use and flue gas of this first and solids fluid extend abreast, and this second portion links to each other with first, and extends with respect to the angled θ of first.
9. device as claimed in claim 8 is characterized in that, the scope of angle θ is 10 ° to 90 °.
10. device as claimed in claim 8 is characterized in that, this device comprises a deflecting plates that extends at least between first and second parts.
11. device as claimed in claim 8 is characterized in that, the first of the lambdoid gathering element in each is arranged in succession links together, and makes it form the used independently parallel path of gas/solid particle flow.
12. device as claimed in claim 7, it is characterized in that, the herringbone gathering element has a first and a second portion, basic in use and flue gas of this first and solids fluid extend abreast, and second portion links to each other with first, and has the shape of one of arc and segmentation shape.
13. device as claimed in claim 7 is characterized in that, at least two rows' cooling tubes link to each other with a public manifold fluid in the upper and lower of collision type particle separator with connecting.
14. device as claimed in claim 7 is characterized in that, at least two rows' cooling tube independently links to each other to the perforation of manifold fluid with one in the upper and lower of collision type particle separator.
15. device as claimed in claim 7 is characterized in that, cooling tube is provided with the anti-erosion device, and these devices are made of a kind of in following at least: a plurality of fin plush coppers, and these plush coppers are welded with cooling tube, and are covered with the refractory material cover layer; Ceramic Tiles; Metal or ceramic spray coating; Metal or ceramic foundry goods; Overlay cladding; And shield.
16. one kind is used for from the device of separating solids the flue gas of recirculating fluidized bed (CFB) boiler, this device comprises: the vertical collision type particle separator of the gas path of a plurality of CFB of being positioned at, these collision type particle separators are adjacent to be provided with, and in the arrangement that two rows stagger mutually, laterally be spaced from each other at least, each collision type particle separator comprises a plurality of vertical cooling tubes, can carry cooling medium by these cooling tubes, have at least three adjacent cooling tubes to form each side of each separator, the a plurality of cooling tubes that form single collision type particle separator interconnect by intervalve location-plate or bar, and intervalve location-plate or bar weld between adjacent cooling tube and along cooling tube at least intermittently, to form an overall structure, wherein, when the CFB boiler used, the maximum temperature of location-plate or bar was no more than the oxidation limiting temperature of the material that forms diaphragm rod.
17. device as claimed in claim 16 is characterized in that, the gas path of CFB boiler is extended and forms in the lower end of at least two rows' cooling tubes at the near-end that is located immediately at the floor below the staggered plurality of rows collision type particle separator.
18. device as claimed in claim 17 is characterized in that, the mutual fluid in lower end of the adjacent cooling tube of formation collision type particle separator links to each other with connecting and forms 180 ° elbow.
19. device as claimed in claim 17 is characterized in that, the mutual fluid in lower end of the cooling tube of the relative both sides of formation collision type particle separator links to each other with connecting and forms 180 ° elbow.
20. device as claimed in claim 17 is characterized in that, the lower end that forms the cooling tube of collision type particle separator links to each other with a common manifold fluid with connecting, and this common manifold is positioned at the floor near-end of gas path.
21. device as claimed in claim 16 is characterized in that, cooling tube is provided with the anti-erosion device, and these devices are made of a kind of in following at least: a plurality of fin plush coppers, and these plush coppers are welded with cooling tube, and are covered with the refractory material cover layer; Ceramic Tiles; Metal or ceramic spray coating; Metal or ceramic foundry goods; Overlay cladding; And shield.
22. device as claimed in claim 16, it is characterized in that this device comprises the sliding part on some foundry goods, the sliding part on these foundry goods can receive and around a plurality of vertical cooling tubes, sliding part on this foundry goods has positive portion and private parts, so that adjacent foundry goods location.
23. device as claimed in claim 16 is characterized in that, this device comprises some foundry goods bolts, these foundry goods bolts by intermetallic metal pipe location-plate or diaphragm and bolt be connected and keep each cooling tube to be adjacent to each other on the collision type particle separator.
24. one kind is used for from the device of separate solid particles the flue gas of recirculating fluidized bed (CFB) boiler, this device comprises: the vertical collision type particle separator of a plurality of CFB of being positioned at, these collision type particle separators are adjacent to be provided with, and in the arrangement that two rows stagger mutually, laterally be spaced from each other at least, each collision type particle separator comprises a plurality of vertical cooling tubes, can carry cooling medium by these cooling tubes, the cooling tube of a plurality of formation one single collision type particle separators is interconnected to form an overall structure, wherein, the a plurality of cooling tubes that form single collision type particle separator comprise a herringbone gathering element, this herringbone gathering element comprises with predetermined distance and is welded to some fin on the cooling tube, to provide zigzag path to the flue gas/solid particle flows that enters.
25. device as claimed in claim 24 is characterized in that, a plurality of vertical cooling tubes are provided with the anti-erosion structure, and these structures are made of a kind of in following at least: a plurality of fin plush coppers, and these plush coppers and cooling tube welding, and be covered with the refractory material cover layer; Ceramic Tiles; Metal or ceramic spray coating; Metal or ceramic foundry goods; Overlay cladding; And shield.
26. one kind is used for from the device of separate solid particles the flue gas of recirculating fluidized bed (CFB) boiler, this device comprises: the vertical collision type particle separator of a plurality of CFB of being positioned at, these collision type particle separators are adjacent to be provided with, and in the arrangement that two rows stagger mutually, laterally be spaced from each other at least, each collision type particle separator comprises a plurality of vertical rectangular cooling tube elements, can carry cooling medium by these cooling tube elements, these rectangle cooling tube elements are welded to each other to form an overall structure.
27. one kind is used for from the device of separate solid particles the flue gas of recirculating fluidized bed (CFB) boiler, this device comprises: the vertical collision type particle separator of the gas path of a plurality of CFB of being positioned at, these collision type particle separators are adjacent to be provided with, and in the arrangement that two rows stagger mutually, laterally be spaced from each other at least, each collision type particle separator comprises a plurality of vertical cooling tubes, can carry cooling medium by these cooling tubes, wherein, the a plurality of cooling tubes that form single collision type particle separator are the omega pipe, and these pipes interconnect to form an overall structure.
28. one kind is used for from the device of separate solid particles the flue gas of recirculating fluidized bed (CFB) boiler, this device comprises: the vertical collision type particle separator of the gas path of a plurality of CFB of being positioned at, these collision type particle separators are adjacent to be provided with, and the arrangement of staggering mutually with two rows laterally is spaced from each other at least, each collision type particle separator comprises a plurality of vertical cooling tubes, can carry cooling medium by these cooling tubes, have at least three cooling tubes to form each side of each separator, the a plurality of cooling tubes that form a single collision type particle separator are interconnected to form an overall structure, wherein, the bottom of each cooling tube is provided with a diameter and reduces part, to prevent the erosion to the bottom.
29. device as claimed in claim 28 is characterized in that, this device comprises the Ceramic Tiles of the shaping of the reduced diameter portion branch that covers each cooling tube, is etched to prevent described part.
30. device as claimed in claim 29 is characterized in that, this device comprises the anti-erosion refractory material that is positioned on the part of cooling tube bottom, and this part is located under the reduced diameter portion branch.
31. as any one described device in the claim 1,16,24,26,27 and 28, it is characterized in that this device comprises at least one deflecting plates, this deflecting plates extends between the sidepiece of each separator element.
32. as any one described device in the claim 7,16,24,26,27 and 28, it is characterized in that, this device comprises a pan or a baffle plate in the bottom of collision type particle separator, walks around collision type particle separator to prevent flue gas and entrained particles.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/865,609 US6500221B2 (en) | 2000-07-10 | 2001-05-25 | Cooled tubes arranged to form impact type particle separators |
| US09/865,609 | 2001-05-25 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021204675A Division CN1245235C (en) | 2001-05-25 | 2002-05-24 | Cooling tubes arranged to form an impactor particle separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1768896A CN1768896A (en) | 2006-05-10 |
| CN1332735C true CN1332735C (en) | 2007-08-22 |
Family
ID=25345873
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021204675A Expired - Fee Related CN1245235C (en) | 2001-05-25 | 2002-05-24 | Cooling tubes arranged to form an impactor particle separator |
| CNB2005101133139A Expired - Fee Related CN1332735C (en) | 2001-05-25 | 2002-05-24 | Cooled tubes arranged to form impact type particle separators |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021204675A Expired - Fee Related CN1245235C (en) | 2001-05-25 | 2002-05-24 | Cooling tubes arranged to form an impactor particle separator |
Country Status (11)
| Country | Link |
|---|---|
| KR (1) | KR100901139B1 (en) |
| CN (2) | CN1245235C (en) |
| BG (1) | BG65258B1 (en) |
| CA (1) | CA2383170C (en) |
| CZ (1) | CZ304210B6 (en) |
| ES (1) | ES2214940B2 (en) |
| MX (1) | MXPA02005135A (en) |
| PL (1) | PL200463B1 (en) |
| PT (1) | PT102785B (en) |
| RU (1) | RU2002113386A (en) |
| UA (1) | UA84251C2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8047162B2 (en) * | 2007-07-27 | 2011-11-01 | Babcock & Wilcox Power Generation Group, Inc. | Black plant steam furnace injection |
| CN106823662A (en) * | 2017-04-11 | 2017-06-13 | 钱兆鑫 | Industrial tail gas purified treatment and haze device |
| CN112856396A (en) * | 2021-01-26 | 2021-05-28 | 王森 | Fluidized bed boiler with water-cooling gas-solid separator and four-and seven-return water-cooling flues |
| CN113804007A (en) * | 2021-10-11 | 2021-12-17 | 北京京诚科林环保科技有限公司 | A flue gas particle capture device |
| CN116146973B (en) * | 2022-12-27 | 2024-08-09 | 哈尔滨红光锅炉总厂有限责任公司 | Low-level arrangement high-efficiency boiler system with desulfurization and denitrification circulating fluidized bed in furnace |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5025755A (en) * | 1986-11-26 | 1991-06-25 | L. & C. Steinmuller Gmbh | Apparatus for burning carbonaceous material in a fluidized bed reactor |
| US5799593A (en) * | 1996-06-17 | 1998-09-01 | Mcdermott Technology, Inc. | Drainable discharge pan for impact type particle separator |
| US6095095A (en) * | 1998-12-07 | 2000-08-01 | The Bacock & Wilcox Company | Circulating fluidized bed reactor with floored internal primary particle separator |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4891052A (en) * | 1989-02-21 | 1990-01-02 | The Babcock & Wilcox Company | Impingement type solids collector discharge restrictor |
| US4992085A (en) * | 1990-01-08 | 1991-02-12 | The Babcock & Wilcox Company | Internal impact type particle separator |
| JPH04131101A (en) * | 1990-09-20 | 1992-05-01 | Nippon Steel Chem Co Ltd | Collection method for sublimable compounds |
| US5343830A (en) * | 1993-03-25 | 1994-09-06 | The Babcock & Wilcox Company | Circulating fluidized bed reactor with internal primary particle separation and return |
| US5378253A (en) * | 1993-09-28 | 1995-01-03 | The Babcock & Wilcox Company | Water/steam-cooled U-beam impact type article separator |
| US5352257A (en) * | 1993-10-08 | 1994-10-04 | The Sherwin-Williams Company | Overspray collection baffle |
| US5809940A (en) * | 1997-05-23 | 1998-09-22 | The Babcock & Wilcox Company | Indirect cooling of primary impact type solids separator elements in a CFB reactor |
| KR100428048B1 (en) * | 2001-05-02 | 2004-04-27 | 한국과학기술원 | Impactor with cooled impaction plate |
| US6454824B1 (en) * | 2001-05-25 | 2002-09-24 | The Babcock & Wilcox Company | CFB impact type particle collection elements attached to cooled supports |
-
2002
- 2002-04-23 CA CA002383170A patent/CA2383170C/en not_active Expired - Fee Related
- 2002-04-25 BG BG106648A patent/BG65258B1/en unknown
- 2002-05-22 KR KR1020020028467A patent/KR100901139B1/en not_active Expired - Fee Related
- 2002-05-22 MX MXPA02005135A patent/MXPA02005135A/en active IP Right Grant
- 2002-05-22 RU RU2002113386/06A patent/RU2002113386A/en not_active Application Discontinuation
- 2002-05-22 UA UA2002054201A patent/UA84251C2/en unknown
- 2002-05-23 ES ES200201179A patent/ES2214940B2/en not_active Expired - Fee Related
- 2002-05-24 PT PT102785A patent/PT102785B/en active IP Right Grant
- 2002-05-24 PL PL354131A patent/PL200463B1/en unknown
- 2002-05-24 CZ CZ2002-1817A patent/CZ304210B6/en not_active IP Right Cessation
- 2002-05-24 CN CNB021204675A patent/CN1245235C/en not_active Expired - Fee Related
- 2002-05-24 CN CNB2005101133139A patent/CN1332735C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5025755A (en) * | 1986-11-26 | 1991-06-25 | L. & C. Steinmuller Gmbh | Apparatus for burning carbonaceous material in a fluidized bed reactor |
| US5799593A (en) * | 1996-06-17 | 1998-09-01 | Mcdermott Technology, Inc. | Drainable discharge pan for impact type particle separator |
| US6095095A (en) * | 1998-12-07 | 2000-08-01 | The Bacock & Wilcox Company | Circulating fluidized bed reactor with floored internal primary particle separator |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2002113386A (en) | 2003-11-20 |
| MXPA02005135A (en) | 2002-12-05 |
| CA2383170C (en) | 2007-10-30 |
| CZ304210B6 (en) | 2014-01-08 |
| CN1768896A (en) | 2006-05-10 |
| PL354131A1 (en) | 2002-12-02 |
| CA2383170A1 (en) | 2002-11-25 |
| KR20020090303A (en) | 2002-12-02 |
| CZ20021817A3 (en) | 2003-03-12 |
| PT102785A (en) | 2002-11-29 |
| PL200463B1 (en) | 2009-01-30 |
| ES2214940B2 (en) | 2005-04-01 |
| CN1245235C (en) | 2006-03-15 |
| UA84251C2 (en) | 2008-10-10 |
| CN1387938A (en) | 2003-01-01 |
| KR100901139B1 (en) | 2009-06-04 |
| BG106648A (en) | 2002-12-29 |
| PT102785B (en) | 2004-07-30 |
| BG65258B1 (en) | 2007-10-31 |
| ES2214940A1 (en) | 2004-09-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6454824B1 (en) | CFB impact type particle collection elements attached to cooled supports | |
| CN1332735C (en) | Cooled tubes arranged to form impact type particle separators | |
| KR20000047628A (en) | Circulating Fluidized Bed Reactor with Floored Internal Primary Particle Separator | |
| US5273002A (en) | Water tube boiler | |
| US6500221B2 (en) | Cooled tubes arranged to form impact type particle separators | |
| US5269262A (en) | Combustion unit | |
| US6322603B1 (en) | Particulate collector channel with cooling inner elements in a CFB boiler | |
| US5009852A (en) | Cooled fluidization grid | |
| US4474141A (en) | Heat exchanger for cooling a hot gas | |
| CA2585610C (en) | A fluidized bed boiler and a grate element for the same | |
| US5855241A (en) | Compact heat exchanger | |
| CN116685805A (en) | Circulating fluidized bed boiler | |
| RU28225U1 (en) | WATER BOILER | |
| JPH0245768B2 (en) | ||
| JPH0245767B2 (en) | ||
| JPH09257204A (en) | Boiler | |
| JPWO2022096784A5 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070822 Termination date: 20170524 |