CN201110536Y - Flue gas waste heat recovery energy-saving system - Google Patents
Flue gas waste heat recovery energy-saving system Download PDFInfo
- Publication number
- CN201110536Y CN201110536Y CNU2007200572843U CN200720057284U CN201110536Y CN 201110536 Y CN201110536 Y CN 201110536Y CN U2007200572843 U CNU2007200572843 U CN U2007200572843U CN 200720057284 U CN200720057284 U CN 200720057284U CN 201110536 Y CN201110536 Y CN 201110536Y
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- CN
- China
- Prior art keywords
- flue gas
- heat recovery
- waste heat
- temperature flue
- energy conserving
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims description 125
- 239000003546 flue gas Substances 0.000 title claims description 123
- 238000011084 recovery Methods 0.000 title claims description 32
- 239000002918 waste heat Substances 0.000 title claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 74
- 239000007921 spray Substances 0.000 claims abstract description 37
- 238000005507 spraying Methods 0.000 claims abstract description 14
- 230000008676 import Effects 0.000 claims description 41
- 239000000498 cooling water Substances 0.000 claims description 39
- 238000012546 transfer Methods 0.000 claims description 20
- 239000000779 smoke Substances 0.000 abstract description 16
- 239000003595 mist Substances 0.000 abstract description 4
- 238000004064 recycling Methods 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 13
- 238000009833 condensation Methods 0.000 description 8
- 230000005494 condensation Effects 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 238000013459 approach Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical group O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 239000003345 natural gas Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000009692 water atomization Methods 0.000 description 3
- 208000005156 Dehydration Diseases 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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- Chimneys And Flues (AREA)
Abstract
The utility model discloses a smoke heat recycling energy-saving system, which comprises main barrel body whose inner portion is provided with heat exchanging space and a main spray system which is at least partially extended in the heat exchanging space, wherein the main barrel body comprises a water outlet pipe base on one end, a low temperature smoke outlet on another end and a high temperature smoke inlet pipe base which is arranged between water outlet pipe base and the low temperature smoke inlet pipe base, wherein the smoke heat recycling energy-saving system further comprises a pre-spray device which comprises at least one pre-cool spray nozzle which opening is arranged in the inner portion of the high temperature smoke inlet pipe base. The system adopts the pre-spray device to make high temperature smoke directly mix and exchange heat with spraying cool water mist when the high temperature smoke is passed through the smoke inlet, which can reduce the burden of a mist trap on one hand, and on the other hand can reduce the burden of heat exchange in the main barrel body, thereby making the volume of the main cylinder smaller, and making the structure compacter.
Description
Technical field
The utility model is about a kind of waste-heat recovery device, particularly about a kind of flue gas waste heat recovery energy conserving system of oil-burning gas-fired boiler.
Background technology
Contain a large amount of steam in the conventional fuel-firing gas-firing flue gas, the volume share of steam is approximately 13% in the oil burning boiler flue gas, the volume share of steam reaches 19% in the gas fired-boiler flue gas, because about about 160～240 ℃ of exhaust gas temperature, even it is higher, so the steam in the flue gas is all discharged with flue gas with gaseous form, the latent heat of condensation of steam can not effectively be utilized, so the entrained heat of steam is the major part of boiler exhaust gas heat loss in the flue gas.With certain natural gas is example, its high-order calorific capacity Q
Gw=39.08MJ/Nm
3, low heat value Q
Dw=35.16MJ/Nm
3, both differ and are 3.92MJ/Nm
3, 1Nm promptly burns
3It is 3920KJ that the steam that natural gas produces will be taken away heat.Hence one can see that, burning 1m
3The heat that the steam that natural gas produces is taken away accounts for more than 10% of natural gas higher calorific value, and the heat loss due to exhaust gas of this part is very big, so be necessary fume afterheat is recycled.
Existing oil-burning gas-fired boiler back-end surfaces mostly adopts wall-type heat exchange, but no matter is all effective latent heats of condensation of recycle-water steam of tube wall formula or heat pipe-type flue gas waste heat recovery apparatus.And that existing solution-air directly contacts mixing heat-exchange flue gas waste heat recovery energy conserving system water vapor condensation rate is low, and SR is big and can not adopt on oil-burning gas-fired boiler.
Install direct contact condenser as a kind of combustion gas (oil) that Chinese patent is disclosed for 01249156.X number, it comprises shell, gas approach, exhanst gas outlet, cooling water inlet, hot water outlet, gas approach below, exhanst gas outlet up, cooling water inlet up, hot water outlet below, liquid distributor is set below cooling water inlet, be provided with packing layer below the liquid distributor, gas approach be located at packing layer below.Yet the flow resistance of the flue gas of this combustion gas (oil) device direct contact condenser is big and particle cooling water is also bigger, so the abundant contact heat-exchanging of cooling water and high-temperature flue gas.
In addition, those skilled in the art have developed a kind of aerosol flue gas waste heat recovery energy conserving system, it comprises that inside is provided with the main cylinder of heat transfer space and extension and is arranged on the water atomization plant of giving in the heat transfer space, wherein, comprise four or more the atomizer that is arranged in the heat transfer space to water atomization plant.Atomizer can make the atomizing particle and the reverse direct contact heat-exchanging of high-temperature flue gas of a heat exchange water of abundant atomizing, fully reclaim the water recovery latent heat in the high-temperature flue gas, improve heat exchange efficiency greatly, yet, because sensible heat in the high-temperature flue gas and latent heat need the while to be absorbed by the atomizing particle of a heat exchange water in heat transfer space, therefore, the live load of this device is bigger, the structure of whole device also need be done very greatly, and heat exchange efficiency also is difficult to abundant raising.
Therefore, provide a kind of energy conserving system of flue gas waste heat recovery efficiently to become the problem that industry need solve.
Summary of the invention
The purpose of this utility model is to provide a kind of flue gas waste heat recovery energy conserving system of effectively recycle-water devaporation latent heat.
The technical solution of the utility model is achieved in that provides a kind of flue gas waste heat recovery energy conserving system, comprise that inside is provided with the main cylinder of heat transfer space and extend the main jet shower device be arranged in the heat transfer space to small part, main cylinder further comprises the water outlet base of being located at an end, be located at the low-temperature flue gas outlet of the other end and be located at the high-temperature flue gas import base of water outlet base between exporting with low-temperature flue gas, the main jet shower device is located between high-temperature flue gas import base and the low-temperature flue gas outlet, wherein, the flue gas waste heat recovery energy conserving system further comprises the pre-spray equipment that is arranged on high-temperature flue gas import base place, and pre-spray equipment comprises that at least one opening is arranged on the precooling nozzle of high-temperature flue gas import base inside.
Wherein, distributive pipe can be arranged on the high-temperature flue gas import base outer wall, on the inwall or be built in the tube wall of high-temperature flue gas import base.When distributive pipe was provided with on the outer wall or be built in the tube wall, high-temperature flue gas import base can be provided with the through hole that passes for the precooling nozzle.When distributive pipe was arranged on high-temperature flue gas import base inside, high-temperature flue gas import base can be provided with the through hole that passes for distributive pipe.
Wherein, high-temperature flue gas import base is arranged on the tangential direction of main cylinder.Flue gas enters main cylinder by the main cylinder tangential direction, can make flue gas form rotation in main cylinder and upwards flow, and greatly the time of staying of prolong smoke in main cylinder, helps the caloic exchange between flue gas and the spraying more.Alternative, flue gas also can be entered by main cylinder radial line direction.
Wherein, pre-spray equipment can be close to the installation of gas approach flue top.According to the size of oil-burning gas-fired boiler capacity and the difference of smoke treatment amount, 1～3 layer of pre-spray equipment can be set, arrange 2～12 small-sized nozzles on every layer of spray equipment.High-temperature flue gas is by gas approach the time, directly contact mixed heat transfer with the spraying cooling water mist, can realize high-temperature flue gas is carried out pre-cooled purpose, can reduce the burden of demister so on the one hand, can reduce the burden of the caloic exchange of main cylinder on the other hand, make that the volume of main cylinder can be littler, structure is compact more.
Preferably, pre-spray equipment comprises at least one distributive pipe, and distributive pipe comprises the corresponding arch section of shape of cross section of at least one section profile and high-temperature flue gas import base, and the precooling nozzle is arranged on arch section.Comprise the distributive pipe more than two or two on two or more the cross section that is disposed on high-temperature flue gas import base such as, pre-spray equipment, the arch section of distributive pipe is provided with the precooling nozzle more than three or three at interval.
More preferably, the arch section of distributive pipe is semicircle, and the precooling nozzle more than three or three uniformly-spaced is arranged on arch section, and the opening of each precooling nozzle is all towards the center of circle of semicircular arch section.
Selectively, pre-spray equipment comprises the identical distributive pipe of the shape more than three or three that be arranged in parallel, and each bar distributive pipe is provided with the precooling nozzle of equal number on correspondence position.Also selectively, the quantity of the precooling nozzle of each bar distributive pipe can be different, and the certain angle that can stagger mutually.
In addition, high-temperature flue gas import base can be non-circular, and the shape of the distributive pipe of pre-spray equipment will be corresponding with the profile phase of high-temperature flue gas import base.
Preferably, the main jet shower device comprises at least one spraying layer that is arranged in the heat transfer space, each spraying layer comprises that one is distributed female pipe and two or more the dispensing branch that is communicated with the female pipe of distribution, is respectively equipped with at least one atomizer on every dispensing branch.Such as, every is distributed female pipe to be communicated with dispensing branch more than six or six respectively, is respectively equipped with two or more atomizers on every dispensing branch.More preferably, dispensing branch is symmetricly set on distributes female pipe both sides, is on the latticed cross section that is arranged in main cylinder with the whole atomizers that distribute female pipe to be communicated with.
Selectively, the main jet shower device comprises the spraying layer on two or more cross sections that main cylinder is set at interval.
Preferably, the flue gas waste heat recovery energy conserving system comprises that further at least one is installed on the external heat exchanger of main cylinder outside, external heat exchanger is provided with shower water import and shower water outlet, the shower water import is communicated with the water outlet base of main cylinder via cooling water pipeline, water circulating pump, filter, control valve, and the shower water outlet is communicated with the female pipe of the distribution of main jet shower device via the cooling water sparge pipe.More preferably, the flue gas waste heat recovery energy conserving system further comprises the demister of one deck at least that is arranged between main jet shower device and the low-temperature flue gas outlet.
Wherein, external heat exchanger is water-water heat exchange, can be plate type heat exchanger, pipe heat exchanger or other form heat exchangers, external heat exchanger has demineralized water to import and export and shower water is imported and exported four ports, the bottom links to each other with the energy saver main cylinder by connecting equipment such as water pipe, water circulating pump, filter, control valve, top communicates with spray equipment by connecting water pipe, makes whole energy conserving system become the circulatory system of an enclosed.
Wherein, after the pre-spray equipment of high-temperature flue gas process is pre-cooled, enter in the energy conserving system main cylinder, with the atomizing cooling water reverse flow of main jet shower device spray, flue gas directly contacts mixed heat transfer with water, has strengthened the heat and mass transfer between high-temperature flue gas and the cold water greatly.For guaranteeing the abundant caloic exchange of flue gas and shower water, must be controlled at the mass velocity in the main cylinder, the mass velocity of the utility model flue gas in main cylinder is 0.5～5.0kg/ (m
2S), be more preferably, the mass velocity of flue gas in main cylinder is 1.0～3.0kg/ (m
2S).From bottom to top, cooling water is reverse flow from top to bottom in main cylinder for flue gas, can effectively absorb the sensible heat of high-temperature flue gas, simultaneously can be with the water vapor condensation in the flue gas, and effectively absorb the condensation latent heat of steam, and can also be with the SO in the flue gas
2, SO
3And NO
xBe dissolved in the cooling water, obtain good environmental benefit.
Difference according to oil-burning gas-fired boiler capacity and smoke treatment amount, some spraying layers are set in the energy conserving system main cylinder, the network structure that each spraying layer is formed for the mother's pipe and the nozzle of band connecting branch, on each connecting branch plurality of nozzles is installed, the effect of nozzle is with the cooling water atomizing, sprays in the flue gas.Main jet shower device arrangement of nozzles becomes the cross section that evenly covers the energy conserving system main cylinder, shower water is fully contacted with flue gas, after the water smoke of flue gas and main jet shower device spray carries out sufficient caloic exchange, must have moisture content in the flue gas, must dewater through demister, to prevent the corrosion to back-end ductwork, flue gas is discharged by exhanst gas outlet after the demister dehydration.
Further, demister is arranged in the top of last spraying layer of main cylinder top.According to the difference of smoke treatment amount, demister can be the combination of several layers deflection plate demister or steel wire demister, is more preferably, demister is the combination of two-layer deflection plate demister, when flue gas was flowed through demister, drop was stayed on the demister baffle plate owing to effect of inertia.
Spray after the cooling water that gets off fully absorbed the sensible heat and latent heat of flue gas from spray equipment, water temperature raises, and under the effect of deadweight, flow to bottom the energy saver main cylinder, because the existence of sour gas in the flue gas, cooling water after being heated can not be directly as the feedwater of former oil-burning gas-fired boiler, for making full use of the heat of heating back cooling water, at main cylinder outer setting one external heat exchanger, main cylinder is provided with fluid level control device and automatic water-replenishing device simultaneously.
Cooling water after the heating is under the effect of water circulating pump, successively enter by-pass valve control and filter by main cylinder water outlet base, enter external heat exchanger cooling water water inlet end again, after in external heat exchanger, low temperature softening water heating being discharged heat, enter spray equipment through water pipe from external heat exchanger cooling water water side.Low temperature softening water is introduced by external heat exchanger demineralized water water side and use hot terminal after having absorbed the high-temperature cooling water heat, such as, the former oil-burning gas-fired boiler base that feeds water.
For preventing heat radiation, be laid with insulation material at energy saver main cylinder and cooling water pipe outer surface, be the maintenance of aspect energy conserving system, manhole and blowdown base are installed on main cylinder.
The beneficial effects of the utility model are: one, the setting of pre-spray equipment, make high-temperature flue gas the time by gas approach, directly contact mixed heat transfer with the spraying cooling water mist, can realize high-temperature flue gas is carried out pre-cooled purpose, can reduce the burden of demister so on the one hand, can reduce the burden of the caloic exchange of main cylinder on the other hand, make that the volume of main cylinder can be littler, structure is compact more; Two, high-temperature flue gas import base is arranged on the tangential direction of main cylinder, can make flue gas form rotation in main cylinder and upwards flow, and greatly the time of staying of prolong smoke in main cylinder, helps the caloic exchange between flue gas and the spraying more; Three, from bottom to top, cooling water is reverse flow from top to bottom in main cylinder for flue gas, can effectively absorb the sensible heat of high-temperature flue gas, simultaneously can be with the water vapor condensation in the flue gas, and effectively absorb the condensation latent heat of steam, and can also be with the SO in the flue gas
2, SO
3And NO
xBe dissolved in the cooling water, obtain good environmental benefit; Four, main jet shower device arrangement of nozzles becomes latticed, evenly covers the cross section of energy conserving system main cylinder, and shower water is fully contacted with flue gas, has improved heat exchange efficiency; Five, adopt high performance ceramic mould external heat exchanger, improved heat exchange efficiency greatly, and heat exchanger separates with main cylinder, not only can reduce the volume of whole device but also be convenient to maintenance and replacing.
Below in conjunction with drawings and Examples; further specify the utility model; but the utility model is not limited to these embodiment, any on the utility model essence spirit improvement or substitute, still belong to scope required for protection in the utility model claims.
Description of drawings
Fig. 1 is the schematic diagram of flue gas waste heat recovery energy conserving system of the present utility model.
Fig. 2 is the schematic diagram of the pre-spray equipment of flue gas waste heat recovery energy conserving system of the present utility model.
Fig. 3 is the schematic diagram of the main jet shower device of flue gas waste heat recovery energy conserving system of the present utility model.
The specific embodiment
Embodiment 1
Please refer to Fig. 1, flue gas waste heat recovery energy conserving system of the present utility model comprises main cylinder 1, main jet shower device 3, pre-spray equipment 4, demister 5, liquid level control and automatic water-replenishing device 11, by-pass valve control 12, filter 13, water circulating pump 14 and external heat exchanger 15.
Main cylinder 1 is provided with high-temperature flue gas import base 2, low-temperature flue gas outlet 6, manhole 7, blowdown base 8, bearing 9, water outlet base 10.
Wherein, high-temperature flue gas import base 2 is along the tangential direction setting of main cylinder 1.Be close to high-temperature flue gas import base 2 tops the pre-spray equipment 4 of two-stage is installed at interval.As shown in Figure 2, every layer of pre-spray equipment 4 comprises distributive pipe 41 and four precooling nozzles 42, and distributive pipe 41 comprises the corresponding arch section of shape of cross section of one section profile and high-temperature flue gas import base 2, and precooling nozzle 42 uniformly-spaced is arranged on this arch section.
Wherein, two-layer main jet shower device 3 and one-level demister 5 are set in the heat transfer space of main cylinder 2 inside.As shown in Figure 3, main jet shower device 3 comprises the female pipe 31 of distribution, dispensing branch 32 and atomizer 33.Whole atomizers 33 of every layer of main jet shower device 3 form a kind of latticed layout.
The operation principle of flue gas waste heat recovery energy conserving system of the present utility model is: when the flue gas of oil-burning gas-fired boiler back-end ductwork enters main cylinder 1 from high-temperature flue gas import base 2 tangential directions, the cooling water that is disposed in pre-spray equipment 4 sprays in the high-temperature flue gas import 2 is pre-cooled, the high-temperature flue gas tangent line enters main cylinder 1 back formation rotation and upwards flows, atomizing cooling water reverse flow with main jet shower device 3 sprays, flue gas directly contacts mixed heat transfer with water, has strengthened the heat and mass transfer between high-temperature flue gas and the cold water greatly.The sensible heat of high-temperature flue gas and the steam latent heat of condensation in the flue gas water that is cooled fully absorbs, and after the abundant heat exchange of flue gas and cooling water, through demister 5 dehydrations, enters boiler back end ductwork from low-temperature flue gas outlet 6 again.
Embodiment 2
As another kind of scheme of the present utility model, other parts are identical with embodiment 1, and difference is:
Three layers of main jet shower device 3 are set in the heat transfer space of main cylinder 2 inside, and the nozzle of every layer of main jet shower device 3 staggers mutually, thereby makes water smoke maximum area ground cover this heat transfer space.
Pre-spray equipment 4 comprises the identical distributive pipe 41 of three strips that be arranged in parallel, distributive pipe is arranged on high-temperature flue gas import base 2 outer walls, and the opening of precooling nozzle 42 extends to high-temperature flue gas import base 2 inside by the through hole that is provided with on the high-temperature flue gas import base 2.
As another kind of scheme of the present utility model, other parts are identical with embodiment 1, and difference is:
The female pipe 31 of the distribution of main jet shower device 3, dispensing branch 32 and atomizer 33 are replaced by three shower type shower nozzles that are distributed in the heat transfer space.This shower type shower nozzle is communicated with cooling water sparge pipe 16 respectively.
The demister that demister 5 constitutes for the compound steel silk screen.
Adopt independent water pump to provide cooling water to pre-spray equipment 4.
Embodiment 4
As another kind of scheme of the present utility model, other parts are identical with embodiment 1, and difference is:
The flue gas waste heat recovery energy conserving system is not provided with external heat exchanger, water circulating pump, filter, control valve and associated conduit.
Adopt water pump to be delivered directly to main jet shower device 3 and pre-spray equipment 4 with running water or through the water source of supercooling.Cooling water after being heated is used hot terminal from water outlet base 10 direct the flow directions with hot terminal or through flowing to after other device processing of main cylinder 1.
Claims (10)
1, a kind of flue gas waste heat recovery energy conserving system, comprise that inside is provided with the main cylinder of heat transfer space and extend the main jet shower device be arranged in the described heat transfer space to small part, described main cylinder further comprises the water outlet base of being located at an end, be located at the low-temperature flue gas outlet of the other end and be located at the high-temperature flue gas import base of described water outlet base between exporting with described low-temperature flue gas, described main jet shower device is located between described high-temperature flue gas import base and the outlet of described low-temperature flue gas, it is characterized in that, described flue gas waste heat recovery energy conserving system further comprises the pre-spray equipment that is arranged on described high-temperature flue gas import base place, and described pre-spray equipment comprises that at least one opening is arranged on the precooling nozzle of described high-temperature flue gas import base inside.
2, flue gas waste heat recovery energy conserving system as claimed in claim 1, it is characterized in that, described pre-spray equipment comprises at least one distributive pipe, described distributive pipe comprises the corresponding arch section of shape of cross section of at least one section profile and described high-temperature flue gas import base, and described precooling nozzle is arranged on described arch section.
3, flue gas waste heat recovery energy conserving system as claimed in claim 2, it is characterized in that, described pre-spray equipment comprises the described distributive pipe more than two or two on two or more the cross section that is disposed on described high-temperature flue gas import base, and the described arch section of described distributive pipe is provided with the precooling nozzle more than three or three at interval.
4, flue gas waste heat recovery energy conserving system as claimed in claim 3, it is characterized in that, the described arch section of described distributive pipe is semicircle, precooling nozzle more than three or three uniformly-spaced is arranged on described arch section, and the opening of each described precooling nozzle is all towards the center of circle of described semicircular arch section.
5, as the described flue gas waste heat recovery energy conserving system of one of claim 1～4, it is characterized in that, described distributive pipe is arranged on the described high-temperature flue gas import base outer wall, on the inwall or is built in the tube wall of described high-temperature flue gas import base, and described high-temperature flue gas import base is arranged on the tangential direction of described main cylinder.
6, flue gas waste heat recovery energy conserving system as claimed in claim 5, it is characterized in that, described main jet shower device comprises at least one spraying layer that is arranged in the described heat transfer space, each described spraying layer comprises that one is distributed female pipe and two or more the dispensing branch that is communicated with the described mother's of distribution pipe, is respectively equipped with at least one atomizer on described every dispensing branch.
7, flue gas waste heat recovery energy conserving system as claimed in claim 6 is characterized in that, every described distributes female pipe to be communicated with dispensing branch more than six or six respectively, is respectively equipped with two or more described atomizers on described every dispensing branch.
8, flue gas waste heat recovery energy conserving system as claimed in claim 7, it is characterized in that, described dispensing branch is symmetricly set on the female pipe of described distribution both sides, is on the latticed cross section that is arranged in described main cylinder with the described whole described atomizer that distributes female pipe to be communicated with.
9, flue gas waste heat recovery energy conserving system as claimed in claim 6 is characterized in that, described main jet shower device comprises the spraying layer on two or more cross sections that described main cylinder is set at interval.
10, flue gas waste heat recovery energy conserving system as claimed in claim 6, it is characterized in that, described flue gas waste heat recovery energy conserving system further comprises the demister of one deck at least that is arranged between described main jet shower device and the outlet of described low-temperature flue gas, and at least one is installed on the external heat exchanger of described main cylinder outside, described external heat exchanger is provided with shower water import and shower water outlet, described shower water import is via water circulating pump, filter, control valve is communicated with the described water outlet base of described main cylinder, and described shower water outlet is communicated with the female pipe of the described distribution of described main jet shower device via the cooling water sparge pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200572843U CN201110536Y (en) | 2007-09-24 | 2007-09-24 | Flue gas waste heat recovery energy-saving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200572843U CN201110536Y (en) | 2007-09-24 | 2007-09-24 | Flue gas waste heat recovery energy-saving system |
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| CN201110536Y true CN201110536Y (en) | 2008-09-03 |
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ID=39895069
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|---|---|---|---|
| CNU2007200572843U Expired - Fee Related CN201110536Y (en) | 2007-09-24 | 2007-09-24 | Flue gas waste heat recovery energy-saving system |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980198A (en) * | 2012-12-21 | 2013-03-20 | 山东北辰机电设备股份有限公司 | Washing condensing smoke triple recovery device |
| CN103363508A (en) * | 2012-04-06 | 2013-10-23 | 梁旭春 | Method for generating spraying type steam |
| CN103953916A (en) * | 2014-04-15 | 2014-07-30 | 李俊宝 | Water-saving and energy-saving method with changed water replenishing way for closed cycle water system |
| CN104214789A (en) * | 2013-05-31 | 2014-12-17 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Smoke waste heat extraction tower for thermal power plant |
| CN104215091A (en) * | 2013-05-31 | 2014-12-17 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Flue gas afterheat and water recycling device |
| CN104676619A (en) * | 2015-01-28 | 2015-06-03 | 燕山大学 | Device combining fuel gas boiler chimney and spraying type smoke waste heat recycling component |
| CN105865223A (en) * | 2016-06-06 | 2016-08-17 | 烟台荏原空调设备有限公司 | Direct contact type flue gas waste heat recovery device |
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