EP0446435B1 - Dispositif pour la combustion des composants oxydables dans un courant d'air d'échappement - Google Patents

Dispositif pour la combustion des composants oxydables dans un courant d'air d'échappement Download PDF

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Publication number
EP0446435B1
EP0446435B1 EP90123052A EP90123052A EP0446435B1 EP 0446435 B1 EP0446435 B1 EP 0446435B1 EP 90123052 A EP90123052 A EP 90123052A EP 90123052 A EP90123052 A EP 90123052A EP 0446435 B1 EP0446435 B1 EP 0446435B1
Authority
EP
European Patent Office
Prior art keywords
heat
chamber
container
heat exchanger
socket
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 - Lifetime
Application number
EP90123052A
Other languages
German (de)
English (en)
Other versions
EP0446435A3 (en
EP0446435A2 (fr
Inventor
Herbert Dipl.-Ing. Obermüller
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.)
H Krantz GmbH and Co
Original Assignee
H Krantz GmbH and Co
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 H Krantz GmbH and Co filed Critical H Krantz GmbH and Co
Priority to AT90123052T priority Critical patent/ATE89907T1/de
Publication of EP0446435A2 publication Critical patent/EP0446435A2/fr
Publication of EP0446435A3 publication Critical patent/EP0446435A3/de
Application granted granted Critical
Publication of EP0446435B1 publication Critical patent/EP0446435B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • F23G7/061—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating
    • F23G7/065—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel
    • F23G7/066—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel preheating the waste gas by the heat of the combustion, e.g. recuperation type incinerator

Definitions

  • the invention relates to a device for burning oxidizable constituents contained in an exhaust air stream from a cylindrical container with a feed nozzle and a discharge nozzle.
  • the feed connector opens into a distribution space, to which the inlet-side legs of radially angled heat exchanger tubes are connected. These extend over a substantial part of the length of the container and open into an annular chamber adjacent to an end face of the container and opposite the distribution space.
  • This surrounds a concentrically arranged burner, coaxially opposite a flue gas mixing pipe.
  • This is connected by a main combustion chamber surrounding it to an annular space which in turn surrounds it and which receives the heat exchanger tubes and to which the discharge pipe is connected.
  • Such a device is known from DE-A-35 32 232. Since the preheating temperature of the exhaust air loaded with oxidizable components should be brought as close as possible to the combustion chamber temperature, there are high demands on the ability to compensate for changes in length, particularly under dynamic conditions, i.e. changes in temperature, volume flow and contaminant loading in the exhaust air Heat exchanger tubes. If the device is also to be operated with only a very low partial exhaust air flow, even heat exchanger tubes with laminar flow are located directly next to heat exchanger tubes with turbulent flow. The resulting different heat transfer on the tube walls inevitably leads to different tube wall temperatures, with the result that even immediately adjacent heat exchanger tubes experience different elongations.
  • the heat exchanger tubes are bent outwards with their colder legs on the inflow side, the exhaust air flowing outside the heat exchanger tubes being freed of the oxidizable components is guided over the pipe bends and the bent pipe sections.
  • the legs of the heat exchanger tubes which are bent outwards, have to be arranged with the smallest possible diameter.
  • the combustion chamber insofar as it is embedded within the heat exchanger, only has a very small volume, ie that (the main part of the combustion chamber or) a large part of the entire combustion chamber outside of the area enclosed by the heat exchanger tubes is to be arranged, whereby the length of the container inevitably increases significantly.
  • the radial legs of the heat exchanger tubes arranged on the outside can only be made relatively short, so that they, when welded into the outer wall of the container, behave too rigidly to be able to compensate for any significant expansion. Due to the shortness of the pipe legs bent outwards, these are at most suitable to compensate for differences in expansion of the pipes with one another, but not also the differences in expansion between the complete tube bundle formed from the heat exchanger tubes on the one hand and the jacket surrounding the tube bundle on the other. Therefore, a further main compensator must be provided in the known device, which makes the device considerably more expensive.
  • the invention has for its object to provide a device of the type described above, which is characterized by a compact design and in which each heat exchanger tube can still experience significant changes in length without having to overcome significant adjustment forces.
  • the length of these legs can be chosen so large, even with a relatively small container diameter, depending on the diameter of the cylindrical jacket that encloses the distribution space, that each heat exchanger tube has a considerable compensation capacity with regard to its thermal expansion disposes.
  • the jacket diameter of the distribution space arranged concentrically to the container axis can be dimensioned so small that the size of the jacket surface is just sufficient to weld all the upstream legs of the heat exchanger tubes to the jacket.
  • the feed connector is also coaxial to the container axis. This results in the aerodynamically favorable training possibility that the feed pipe merges smoothly into the cylindrical jacket of the distribution space.
  • a bypass is provided in an end face of the distribution space, coaxial with the latter, which consists of a pipe socket protruding into the flue gas mixing pipe.
  • the device according to the invention makes it possible to equip it with such a bypass, which is preferably only required for a certain operating mode, with little effort, if necessary also retrospectively.
  • the device essentially consists of a cylindrical container 1, which is provided on the outside with a heat-insulating insulation 2.
  • the container 1 is provided on one end face 3 with a feed connector 4 arranged coaxially to the container axis and opening into a cylindrical distribution chamber 5.
  • the feed pipe 4 and the distribution chamber 5 have a matching diameter and therefore merge into one another continuously.
  • heat exchanger tubes 7 In a jacket 6 of the distribution chamber 5, inflow ends of heat exchanger tubes 7 are welded.
  • the heat exchanger tubes 7, which are cylindrical near the wall of the container 1 are arranged and in this respect extend axially over a substantial part of the length of the container 1, each with an inlet-side leg 8 bent radially inwards.
  • the outlet-side ends of the heat exchanger tubes 7 open into an annular chamber 9 which adjoins an end face 10 of the container 1.
  • the end face 10 carries a burner 11 which is arranged concentrically to the annular chamber 9 and which opens into a flue gas mixing tube 12. This ends at a distance from a partition wall 13 which covers the distribution chamber 5 and delimits a main combustion chamber 14 on the end face.
  • the main combustion chamber 14 surrounds the flue gas mixing tube 12 and communicates with an annular space 16 via a deflection space 15.
  • the heat exchanger tubes 7 are accommodated, which also penetrate the deflection space 15 and are firmly inserted into an annular disk 17 that delimits the end face.
  • the annular space 16 is connected to a discharge connection 18 which is radially connected to the casing of the container 1.
  • a bypass 19 is provided concentrically in the partition 13, which consists of an end face closed, provided with radial bores 20 and protruding into the high-speed pipe 12 pipe socket 21.
  • the bypass 19 can be released or closed more or less depending on the position of a flap 22 in the pipe socket 21.

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Telephone Function (AREA)
  • Combustion Of Fluid Fuel (AREA)
  • Incineration Of Waste (AREA)

Claims (3)

  1. Dispositif pour la combustion de composants oxydables contenus dans un courant d'air d'échappement, ce dispositif étant constitué d'un réservoir (1) cylindrique pourvu d'un tuyau d'admission (4) et d'un tuyau d'évacuation (18), le tuyau d'admission (4) débouchant dans une chambre de distribution (5) dans laquelle débouchent les extrémités d'arrivée des branches (8) coudées radialement de tuyaux d'échange thermique (7), lesquels s'étendent sur une partie considérable de la longueur du réservoir et débouchent dans une chambre annulaire (9) adjacente à une face frontale (10) du réservoir (1) et située à l'opposé de la chambre de distribution (5), cette chambre annulaire renfermant un brûleur (11) disposé de manière concentrique et auquel fait face, de manière coaxiale, un tube mélangeur pour les gaz de combustion (12) qui communique avec une autre chambre annulaire (16) par l'intermédiaire d'une chambre de combustion principale (14) qui l'entoure et est elle-même entourée par cette chambre annulaire (16) qui contient les tuyaux d'échange thermique (7) et au niveau de laquelle se situe le départ du tuyau d'évacuation (18), ce dispositif étant caractérisé par le fait que les branches (8) des tuyaux d'échange thermique (7) situées du côté de l'admission sont coudées vers l'intérieur et que leurs extrémités sont encastrées dans une chemise (6) cylindrique qui entoure la chambre de distribution (5) de manière concentrique, et que cette chambre de distribution (5) et le tuyau d'admission (4) sont disposés de manière coaxiale par rapport au réservoir (1).
  2. Dispositif selon la revendication 1, caractérisé par le fait que le tuyau d'admission (4) s'adapte parfaitement dans la chemise (6) cylindrique de la chambre de distribution (5).
  3. Dispositif selon l'une ou l'autre des revendications 1 ou 2, caractérisé par le fait que l'on prévoit, sur une face frontale (13) de la chambre de distribution (5) et disposée de manière coaxiale à celle-ci, une dérivation (19) constituée par un tuyau (21) qui se prolonge à l'intérieur du tube mélangeur (12) à grande vitesse (12).
EP90123052A 1990-03-10 1990-12-01 Dispositif pour la combustion des composants oxydables dans un courant d'air d'échappement Expired - Lifetime EP0446435B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90123052T ATE89907T1 (de) 1990-03-10 1990-12-01 Vorrichtung zum verbrennen von in einem abluftstrom enthaltenen oxidierbaren bestandteilen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4007625 1990-03-10
DE4007625 1990-03-10

Publications (3)

Publication Number Publication Date
EP0446435A2 EP0446435A2 (fr) 1991-09-18
EP0446435A3 EP0446435A3 (en) 1992-03-04
EP0446435B1 true EP0446435B1 (fr) 1993-05-26

Family

ID=6401878

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90123052A Expired - Lifetime EP0446435B1 (fr) 1990-03-10 1990-12-01 Dispositif pour la combustion des composants oxydables dans un courant d'air d'échappement

Country Status (5)

Country Link
US (1) US5200155A (fr)
EP (1) EP0446435B1 (fr)
AT (1) ATE89907T1 (fr)
CA (1) CA2037863C (fr)
DE (1) DE59001568D1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5309849A (en) * 1992-05-22 1994-05-10 Andritz Tcw Engineering Gmbh Sludge drying system with recycling exhaust air
US5556273A (en) * 1994-10-28 1996-09-17 Tuscaloosa Steel Corporation Combustion system for a steckle mill
US5558029A (en) * 1994-12-14 1996-09-24 Barnstead/Thermlyne Corporation Ashing furnace and method
US5643544A (en) * 1995-04-28 1997-07-01 Applied Web Systems, Inc. Apparatus and method for rendering volatile organic compounds harmless
US6000935A (en) * 1997-02-21 1999-12-14 Troxler Electronic Laboratories, Inc Adjustable apparatus for pyrolysis of a composite material and method of calibration therefor
US5735680A (en) * 1997-03-13 1998-04-07 Applied Web Systems, Inc. Fume incineration
US6269755B1 (en) * 1998-08-03 2001-08-07 Independent Stave Company, Inc. Burners with high turndown ratio
KR100523752B1 (ko) * 2001-12-05 2005-10-24 송권규 강선회 고온 개질 소각로
DE102004051491B3 (de) * 2004-07-27 2006-03-02 Eisenmann Maschinenbau Gmbh & Co. Kg Thermische Nachverbrennungsvorrichtung sowie Verfahren zum Betreiben einer solchen
IE20070094A1 (en) * 2007-02-15 2008-12-10 Francis Donal Duignan A combustion chamber for burning solid fuels
WO2011142811A1 (fr) * 2010-05-11 2011-11-17 Anglo American Holding, Llc. Ensemble d'appareil de combustion à récupération avec injection de vapeur
DE102013203448A1 (de) * 2013-02-28 2014-08-28 Dürr Systems GmbH Anlage und Verfahren zum Behandeln und/oder Verwerten von gasförmigemMedium
GB2544520A (en) * 2015-11-19 2017-05-24 Edwards Ltd Effluent gas treatment apparatus and method
CN110566982B (zh) * 2019-10-10 2020-11-03 江苏中矿贝莱柯环境科技有限公司 一种废气环保处理用燃烧装置
CN113531565B (zh) * 2021-09-14 2021-12-10 江苏中科机械有限公司 一种rto蓄热式废气氧化炉的清洁装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1140958B (de) * 1957-09-20 1962-12-13 Yuba Cons Ind Inc Vertikalerhitzer fuer Gase mit zylindrischer Brennkammer und in einer einzigen Kreisreihe angeordneten Rohren
FR1199130A (fr) * 1958-06-13 1959-12-11 Electricite De France Perfectionnements apportés aux échangeurs de chaleur tubulaires
US3549333A (en) * 1968-07-23 1970-12-22 Universal Oil Prod Co Recuperative form of direct thermal incinerator
DE3014269C2 (de) * 1980-04-14 1982-11-25 Katec, Katalytische Lufttechnik Betz Gmbh & Co, 6467 Hasselroth Verbrennungseinrichtung zur Verbrennung von Störstoffen in Abluft- und Abfallsubstanzen
DE3532232A1 (de) * 1985-09-10 1987-03-19 Katec Betz Gmbh & Co Vorrichtung zum verbrennen oxidierbarer bestandteile in einem traegergas

Also Published As

Publication number Publication date
EP0446435A3 (en) 1992-03-04
EP0446435A2 (fr) 1991-09-18
CA2037863C (fr) 2001-09-11
CA2037863A1 (fr) 1991-09-11
US5200155A (en) 1993-04-06
DE59001568D1 (de) 1993-07-01
ATE89907T1 (de) 1993-06-15

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