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WO2002039019A1 - Piece rapport de chambre de combustion permettant la combustion ecologique de carburants a teneur elevee en substances polluantes dans des dispositif de combustion utilisant l'energie thermique - Google Patents

Piece rapport de chambre de combustion permettant la combustion ecologique de carburants a teneur elevee en substances polluantes dans des dispositif de combustion utilisant l'energie thermique Download PDF

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Publication number
WO2002039019A1
WO2002039019A1 PCT/HU2001/000108 HU0100108W WO0239019A1 WO 2002039019 A1 WO2002039019 A1 WO 2002039019A1 HU 0100108 W HU0100108 W HU 0100108W WO 0239019 A1 WO0239019 A1 WO 0239019A1
Authority
WO
WIPO (PCT)
Prior art keywords
combustion chamber
insert
combustion
ceramic
elements
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.)
Ceased
Application number
PCT/HU2001/000108
Other languages
German (de)
English (en)
Inventor
Ferenc Morvai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Devenyi Ferenc
Meszaros Gabor
Panczel Geza
PICHOVSZKY ANTAL
Simony Zoltan
Vegh Gyorgy
Original Assignee
Devenyi Ferenc
Meszaros Gabor
Panczel Geza
PICHOVSZKY ANTAL
Simony Zoltan
Vegh Gyorgy
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Devenyi Ferenc, Meszaros Gabor, Panczel Geza, PICHOVSZKY ANTAL, Simony Zoltan, Vegh Gyorgy filed Critical Devenyi Ferenc
Priority to AU2002223917A priority Critical patent/AU2002223917A1/en
Publication of WO2002039019A1 publication Critical patent/WO2002039019A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F23M5/02—Casings; Linings; Walls characterised by the shape of the bricks or blocks used
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/05—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste oils
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M2900/00—Special features of, or arrangements for combustion chambers
    • F23M2900/05004—Special materials for walls or lining

Definitions

  • the invention relates to a combustion chamber insert for the environmentally friendly combustion of fuels containing high levels of pollutants, in particular waste oil or pakura, in heat-using nerburning devices, for example hot water or steam boilers, which combustion chamber insert forms an internal combustion unit which is arranged inside the combustion chamber and has a jacket composed of partial elements made of ceramic material.
  • the kilns are usually designed as rotary kilns provided with a burner device suitable for introducing thermal energy.
  • a gas scrubber which is used to clean the resulting gaseous combustion products (flue gases) with the aim of complying with the applicable emission regulations.
  • the Hungarian patent specification ⁇ r. 206 148 proposed an afterburning reactor.
  • This reactor forms a vertical in the combustion chamber Connected afterburning chamber with a reactor body made of ceramic material which ends in a dome-shaped outlet and has a cylindrical shell construction, the interior of which is divided in two by a turbulence-causing baffle cone and which is eccentrically surrounded by an outer reactor jacket, with the afterburning and the neutralization of the oxides resulting from heat treatment Sulfur and the nitrogen between the outer reactor jacket and the reactor body preheated secondary air is introduced.
  • the vertical arrangement of the reactor aims to collect the solid and liquid pollutants by gravity.
  • a reactor constructed and arranged in this way cannot be installed in the conventional boiler or combustion devices which have been converted to waste incineration.
  • a horizontal version of the reactor presented here is also known, which has a reactor body of cylindrical ceramic shell construction arranged in the length of the combustion chamber, the interior of which is divided in two by a cone fastened with supports.
  • a reactor of this construction if it is dimensioned too small, cannot withstand the operational heat load of the respective boiler, however, due to the closed shell construction, the required heat transfer is not guaranteed near the wall of the combustion chamber, and at the same time the temperature of the escaping flue gases is significantly higher , which worsens the efficiency of the boiler, so that it cannot provide the nominal amount of heat when the original output (amount of oil) is fed in.
  • a further developed variant of the cylindrical reactor consists of drum-shaped modules, each of which contains a plurality of segments in the form of a circular ring section, which are held together by connecting elements.
  • the object of the invention was to provide a combustion chamber insert for the afterburning, which, in the combustion chamber of a heat-utilizing combustion device, also an already existing combustion device, while ensuring the required efficiency and the required performance of the combustion device, the complete combustion the highly pollutant-containing hydrocarbons and at the same time enables the binding of the heavy metal ions present in the combustion products and, if necessary, also partially - can be easily remediated.
  • the invention is based on the knowledge that the combustion chamber insert must be arranged in such a way that it does not hinder the transfer of heat to the heating surfaces, and at the same time is constructed in such a way that appropriate turbulence and surface are ensured for the separation of the heavy metals and heavy metal compounds in the combustion products, and its parts loaded with these substances can be replaced.
  • the combustion chamber insert consists of a series of openwork ceramic insert elements, which are formed as a square flat plates and are made of ceramic, which form a jacket with a polygonal cross-section, consisting of a series of frame structures which are fastened next to one another with gaps in a heat-resistant material, and this combustion chamber insert in the rear 40-50% of the length of the combustion chamber, from the wall of the combustion chamber by 2-10% of its diameter.
  • the polygonal shape of the combustion chamber insert extends from the hexagon to the octagon.
  • the perforations in the insert elements which consist of ceramic material that is heat-resistant to the flame temperature over the long term, can be designed both as a lattice structure and as a perforation.
  • the diameter of the holes is one to ten times the thickness of the insert element, and the material thickness between the holes corresponds to 1-3 times the thickness of the ceramic insert elements, which in turn accounts for 0.05% to 0.5% of the combustion chamber diameter.
  • the ceramic insert elements are expediently of square or rectangular shape and dimensioned so that they divide the scope of the combustion chamber insert into six to eighteen parts. Insert elements designed in this way can be easily replaced and are self-holding even in the glowing state.
  • FIG. 2 shows the cross section of the combustion chamber insert according to the invention arranged in the combustion chamber and suitable for afterburning along the line A-A of FIG. 1,
  • Fig. 3 shows the section along the line B-B of Fig. 2
  • Fig. 4 shows the section along the line C-C of Fig. 3, which illustrates the edging of the ceramic insert elements of the combustion chamber insert in the frame construction.
  • a combustion device 1 converted to the combustion of highly pollutant-containing substances, in the present case waste oil, has a steam boiler in the present case, which has a combustion chamber 3 surrounded by a steam boiler train 2 that receives the heating surfaces, in the front part of the combustion chamber 3 a burner head 4 which is surrounded by the original burner block of the device.
  • a combustion chamber insert 5 is arranged at a distance from the wall of the combustion chamber 3 corresponding to 2-10% of the combustion chamber diameter , which forms a polygonal jacket consisting of a series of insert elements 6 made of ceramic, which are formed as rectangular plates in the present case, square plates, in the present case ninety-sided cross section, the insert elements 6 in a frame construction 7 made of heat-resistant material, in the present case of heat-resistant steel are interchangeably attached next to each other with at least the gaps corresponding to the thickness of the insert elements 6 with the aid of holders 8.
  • the thickness of the ceramic insert elements 6 is 0.05% to 0.5% of the combustion chamber diameter.
  • the insert elements 6 divide the scope of the combustion chamber insert into six to. eighteen parts; they are provided with a perforation 9, possibly made like a grid.
  • the diameter of the holes in the perforation 9 is 1-10 times the thickness of the insert elements 6, and the material thickness between the individual holes corresponds to one to three times the thickness of the insert element 6.
  • the material of the insert elements 6 is heat-resistant ceramic, which can withstand the temperature required for afterburning without significant deformation.
  • the entirety of the ceramic insert elements 6 fastened to the frame construction 7 forms a shell of polygonal cross section, which, with its directional breaks for the combustion products, ensures sufficient turbulence, as a result of which the gases do not simply flow straight through the combustion chamber insert 5, but now and then forth and through the perforation 9, whereby on the one hand there is sufficient heat transfer through the wall of the combustion chamber 3 and on the other hand the combustion products can pass their heavy metal content to the insert elements 6 when passing through the openings in the insert elements 6.
  • the polygonal cross-section formed by the insert elements 6 has a nine-cornered cross-section in the case under consideration, but this depends on the dimensions of the respective combustion chamber 3, the jacket can be any, appropriately chosen from the hexagon to the octagon Cross section.
  • the solution according to the invention enables the desired post-combustion temperature to be reached as quickly as possible when the burner head is started up again. This enables perfect combustion of the highly polluting hydrocarbons with minimal emission of NO x and SO x . At the same time, the binding of the heavy metals and heavy metal compounds in the combustion products, is guaranteed.
  • combustion chamber according to the invention was explained with reference to a specific example relating to the combustion of waste oil, but the use of the combustion chamber according to the invention can also be used for burning Pakura with appropriate adaptation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Incineration Of Waste (AREA)

Abstract

La présente invention concerne une pièce rapportée de chambre de combustion permettant la combustion écologique de carburants à teneur élevée en substances polluantes, notamment d'huile usée ou de pakura, dans des dispositifs de combustion utilisant l'énergie thermique, ladite pièce rapportée de chambre de combustion formant une unité de postcombustion disposée à l'intérieur de la chambre de combustion et présentant une gaine constituée d'éléments partiels en matériau céramique. L'invention se caractérise en ce que: la pièce rapportée de chambre de combustion (5) est constituée d'une série d'éléments rapportés ajourés (6) en céramique qui sont fixés dans une structure de support (7) constituée d'un matériau résistant à la température, l'un à côté de l'autre en étant séparés par des espaces intermédiaires, et qui se présentent sous la forme de plaques tétragonales planes, lesdits éléments formant dans leur intégralité une gaine de section polygonale; et en ce que cette pièce rapportée de chambre de combustion (5) est disposée dans les 40-50 % arrière de la longueur de la chambre de combustion (3) en étant espacée de la paroi de la chambre de combustion (3) de 2-10 % de son diamètre.
PCT/HU2001/000108 2000-11-07 2001-11-07 Piece rapport de chambre de combustion permettant la combustion ecologique de carburants a teneur elevee en substances polluantes dans des dispositif de combustion utilisant l'energie thermique Ceased WO2002039019A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002223917A AU2002223917A1 (en) 2000-11-07 2001-11-07 Combustion chamber inlay for environmentally friendly combustion of fuels with ahigh contaminant content in combustion devices which use heat

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HUP0004354 2000-11-07
HUP0004354 2000-11-07

Publications (1)

Publication Number Publication Date
WO2002039019A1 true WO2002039019A1 (fr) 2002-05-16

Family

ID=89575017

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/HU2001/000108 Ceased WO2002039019A1 (fr) 2000-11-07 2001-11-07 Piece rapport de chambre de combustion permettant la combustion ecologique de carburants a teneur elevee en substances polluantes dans des dispositif de combustion utilisant l'energie thermique

Country Status (2)

Country Link
AU (1) AU2002223917A1 (fr)
WO (1) WO2002039019A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1551861A1 (de) * 1967-11-26 1970-04-09 Josef Stadler Kg Anlage zur Verbrennung von Abfalloelen
GB1450894A (en) * 1972-11-01 1976-09-29 Lucas Industries Ltd Flame tubes
FR2499689A1 (fr) * 1981-02-06 1982-08-13 Mateos Francois Chaudiere pour petits combustibles derives du bois pour chauffer les habitations
WO1989005422A1 (fr) * 1987-12-11 1989-06-15 Allan Inovius Reacteur servant a reduire la teneur en oxydes d'azote et en oxydes de soufre dans des gaz de combustion

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1551861A1 (de) * 1967-11-26 1970-04-09 Josef Stadler Kg Anlage zur Verbrennung von Abfalloelen
GB1450894A (en) * 1972-11-01 1976-09-29 Lucas Industries Ltd Flame tubes
FR2499689A1 (fr) * 1981-02-06 1982-08-13 Mateos Francois Chaudiere pour petits combustibles derives du bois pour chauffer les habitations
WO1989005422A1 (fr) * 1987-12-11 1989-06-15 Allan Inovius Reacteur servant a reduire la teneur en oxydes d'azote et en oxydes de soufre dans des gaz de combustion

Also Published As

Publication number Publication date
AU2002223917A1 (en) 2002-05-21

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