FR2535837A1 - Heat exchanger for the fume outlet of industrial furnaces, in particular of furnaces for incineration of waste. - Google Patents

Heat exchanger for the fume outlet of industrial furnaces, in particular of furnaces for incineration of waste. Download PDF

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Publication number
FR2535837A1
FR2535837A1 FR8219018A FR8219018A FR2535837A1 FR 2535837 A1 FR2535837 A1 FR 2535837A1 FR 8219018 A FR8219018 A FR 8219018A FR 8219018 A FR8219018 A FR 8219018A FR 2535837 A1 FR2535837 A1 FR 2535837A1
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FR
France
Prior art keywords
tubes
fumes
furnaces
cooling
heat exchanger
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.)
Pending
Application number
FR8219018A
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French (fr)
Inventor
Robert Lynde
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.)
STANDARD FASEL SA
Original Assignee
STANDARD FASEL SA
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 STANDARD FASEL SA filed Critical STANDARD FASEL SA
Priority to FR8219018A priority Critical patent/FR2535837A1/en
Publication of FR2535837A1 publication Critical patent/FR2535837A1/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
    • F28D21/001—Recuperative heat exchangers the heat being recuperated from exhaust gases for thermal power plants or industrial processes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B21/00—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically
    • F22B21/22—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from water tubes of form other than straight or substantially straight
    • F22B21/26—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from water tubes of form other than straight or substantially straight bent helically, i.e. coiled
    • 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 of dispositions of combustion apparatus
    • F22B31/04—Heat supply by installation of two or more combustion apparatus, e.g. of separate combustion apparatus for the boiler and the superheater respectively
    • F22B31/045—Steam generators specially adapted for burning refuse
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • F28D7/0075—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with particular circuits for the same heat exchange medium, e.g. with the same heat exchange medium flowing through sections having different heat exchange capacities or for heating or cooling the same heat exchange medium at different temperatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
    • F28D7/024—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/08—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/08—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag
    • F28D7/082—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration
    • F28D7/085—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions
    • F28D7/087—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions assembled in arrays, each array being arranged in the same plane
    • 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
    • Y02E20/12—Heat utilisation in combustion or incineration of waste
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Environmental & Geological Engineering (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

Exchanger characterised in that it is in the form of a modular element consisting essentially of a part 1 for cooling the fumes by radiation, formed by one or more steel tubes 4 wound spirally so as to form a chimney with a wall cooled by the fluid circulating in the tubes, and of a part 2 for cooling the fumes by convection, which adjoins the first part 1 and consists of serpentines of steel tubes 5 arranged as a bundle of uniformly spaced horizontal tubes, the whole being supported and enclosed in a metal framework 3.

Description

La présente invention concerne le domaine des fours industriels, en-particulier dtincinération de déchets, notamment d'ordures ménagères et a pour objet un échangeur de chaleur pour sortie de fumée de tels fours. The present invention relates to the field of industrial ovens, in particular the incineration of waste, in particular household waste and relates to a heat exchanger for the smoke outlet from such ovens.

Actuellement, il existe des échangeurs destinés à la récupération de la chaleur dégagée par les fumes de tels fours, qui sont généralement sous forme de tubes de fumée dans lesquels circulent -lesdites fumées, et qui transmettent, par convection, la chaleur à un fluide tel que de l'eau surchauffée ou de la vapeur. Currently, there are exchangers intended for recovering the heat given off by the fumes of such ovens, which are generally in the form of smoke tubes in which the said fumes circulate, and which transmit, by convection, the heat to a fluid such than superheated water or steam.

Il existe également des échangeurs sous forme d'une cheminée dont les parois sont constituées par des tubes de fluide caloporteur, et-qui est raccordée à une boîte de détente de fumée dans laquelle sont disposés un ou plusieurs serpentins relieras, d'une part à une conduite d'amenée de fluide, et, d'autre part, à ltentrée de fluide des tubes de la cheminée. There are also exchangers in the form of a chimney, the walls of which are constituted by tubes of heat-transfer fluid, and which is connected to a smoke expansion box in which one or more coils are connected, on the one hand to a fluid supply line, and, on the other hand, to the fluid inlet of the chimney tubes.

Cependant, de tels échangeurs, pour être efficaces, c'est-à-dire pour assurer une récupération maximale de la chaleur dégagée par les fumées, présentent des dimensions importantes souvent incompatibles avec une fabrication en usine et un transport sur-place à l'état monté. However, such exchangers, to be effective, that is to say to ensure maximum recovery of the heat given off by the fumes, have large dimensions often incompatible with manufacture in the factory and on-site transport to the mounted state.

En outre, le parcours des fumées entre les deux parties de l'échangeur s'effectue souvent suivant des passages préferentiels résultant d'une mauvaise jonction entre ces parties.. In addition, the smoke path between the two parts of the exchanger is often carried out according to preferential passages resulting from a poor junction between these parts.

La présente invention a pour but de pallier ces inconvénients. The present invention aims to overcome these drawbacks.

Elle a, en effet, pour objet un échangeur de chaleur pour sortie de fumée de fours industriels, en particulier de fours dtincinération de déchets, caractérisé en ce qu'il se présente sous forme d'un élément modulaire essentiellement constitué par une partie de refroidissement des fumées par rayonnement réalisée par un ou plusieurs tubes d'acier enroulés en spirale de manière à former une cheminée à paroi refroidie par le fluide en circulation dans les tubes, et par une partie de refroidissement des fumées par convection juxtaposée à la première partie et formée par des serpentins de tubes d'acier disposés suivant un faisceau de tubes horizontaux espacés régulièrement, l'ensemble étant maintenu et enfermé dans une ossature métallique. Its purpose is in fact a heat exchanger for the smoke outlet from industrial ovens, in particular from waste incineration ovens, characterized in that it is in the form of a modular element essentially constituted by a cooling part. fumes by radiation produced by one or more steel tubes wound in a spiral so as to form a chimney with a wall cooled by the fluid circulating in the tubes, and by a part for cooling the fumes by convection juxtaposed with the first part and formed by coils of steel tubes arranged in a bundle of regularly spaced horizontal tubes, the assembly being held and enclosed in a metal frame.

L'invention sera mieux comprise grâce à la description ci-après, qui se rapporte à un mode de réalisation préféré, donné à titre d'exemple non limitatif, et expliqué avec référence au dessin schématique annexé, dans lequel la figure 1 est une vue en plan et en coupe d'un échangeur conforme à l'invention, et la figure 2 est une vue en élévation de l'échangeur suivant la figure l.  The invention will be better understood thanks to the description below, which relates to a preferred embodiment, given by way of nonlimiting example, and explained with reference to the appended schematic drawing, in which FIG. 1 is a view in plan and in section of an exchanger according to the invention, and FIG. 2 is an elevation view of the exchanger according to FIG.

Conformément à l'invention, et comme le montrent plus particulièrement, à titre d'exemple, les figures 1 et 2 du dessin annexé, l'échangeur de chaleur pour sortie de fumée de fours industriels, en particulier de fours d'incinération de déchets, se présente sous forme d'un élément modulaire, qui est constitué par une partie 1- de refroidissement des fumées par rayonnement, et par une partie 2 de refroidissement des fumées par conveCtion juxtaposée à la partie 1, l'ensemble étant maintenu et enfermé dans une ossature métallique 3. In accordance with the invention, and as shown more particularly, by way of example, FIGS. 1 and 2 of the appended drawing, the heat exchanger for the smoke outlet from industrial ovens, in particular from waste incineration ovens , is in the form of a modular element, which is constituted by a part 1- for cooling the smoke by radiation, and by a part 2 for cooling the smoke by conveCtion juxtaposed with part 1, the assembly being maintained and enclosed in a metal frame 3.

La partie 1 de refroidissement des fumées par rayonnement est constituée par un ou plusieurs tubes d'acier 4 enroulés en spirale pour former une cheminée dont la paroi est refroidie par le fluide circulant dans lesdits tubes 4. Dans cette partie 1, qui est raccordée par son extrémité supérieure (flèche figure 2) au foyer du four, soit directement, soit par l'intermédiaire d'une gaine (cas de la figure ), les fumées sont refroidies par rayonnement de telle sorte que les cendres qu'elles véhiculent soient réduites à une température empêchant leur collage sur les tubes 4 ou sur les tubes 5 de la partie 2. Part 1 for cooling the smoke by radiation consists of one or more steel tubes 4 wound in a spiral to form a chimney, the wall of which is cooled by the fluid circulating in said tubes 4. In this part 1, which is connected by its upper end (arrow in Figure 2) at the furnace hearth, either directly or via a sheath (case of the figure), the fumes are cooled by radiation so that the ashes they carry are reduced at a temperature preventing them from sticking to the tubes 4 or to the tubes 5 of part 2.

La partie 2 de refroidissement des gaz par convecton est constituée par des serpentins de tubes d'acier 5 qui sont disposés suivant un faisceau de tubes horizontaux espacés régulièrement (figure 2). Dans cette partie 2, les fumées provenant de la partie 1 sont refroidies jusqu'à leur température de rejet en cédant leur chaleur au fluide circulant dans les tubes 5. The convection gas cooling part 2 is made up of coils of steel tubes 5 which are arranged in a bundle of regularly spaced horizontal tubes (FIG. 2). In this part 2, the fumes coming from part 1 are cooled to their rejection temperature by yielding their heat to the fluid circulating in the tubes 5.

Conformément à une caractéristique de l'invention, les faisceaux de tubes horizontaux 5 présentent des longueurs de tubes différentes de telle sorte que ces derniers s'ajustent intimement à la paroi externe des tubes 4 formant la partie 1, afin d'éliminer tout risque de subsistance d'un passage préférentiel pour les fumées. According to a characteristic of the invention, the bundles of horizontal tubes 5 have different lengths of tubes so that the latter intimately fit the external wall of the tubes 4 forming part 1, in order to eliminate any risk of subsistence of a preferential passage for smoke.

En effet, grâce à ce mode de réalisation, la section de passage des fumées est identique en tous points de la partie 2, de sorte que le passage des fumées entre les tubes 5 est un passage obligatoire au cours duqueli'é- change de chaleur est optimal. Indeed, thanks to this embodiment, the smoke passage section is identical in all points of part 2, so that the passage of smoke between the tubes 5 is a compulsory passage during which heat exchange is optimal.

En outre, afin d'augmenter le parcours des fumées dans la partie 2 et d'obliger ces dernières à parcourir plusieurs fois les faisceaux de tubes 5, la partie 2 peut avantageusement être munie d'une ou de plusieurs chicanes 6 permettant d'améliorer ainsi l'échange de chaleur. In addition, in order to increase the smoke path in part 2 and to force the latter to pass through the bundles of tubes 5 several times, part 2 can advantageously be provided with one or more baffles 6 making it possible to improve thus the heat exchange.

A la base des parties 1 et 2 sont prévues, de manière connue, des trémies de décendrage 7 recueillant les cendres se déposant au cours de leur passage dans l'échangeur. At the base of parts 1 and 2 are provided, in a known manner, ash removal hoppers 7 collecting the ashes which are deposited during their passage through the exchanger.

Le circuit de fluide caloporteur formé par les tubes a et 5 des deux parties 1 et 2 est relié, d'une part, à une conduite d'amenée de fluide 8 alimentant les tubes 5 dont les sorties sont raccordées à une conduite 9 alimentant les tubes 4, -et, d'autre part, à une conduite 10 de départ de fluide raccordée à la sortie des tubes 4, les conduites 8 et 10 étant pourvues chacune d'une bride de fixation. The heat transfer fluid circuit formed by the tubes a and 5 of the two parts 1 and 2 is connected, on the one hand, to a fluid supply pipe 8 supplying the tubes 5, the outputs of which are connected to a pipe 9 supplying the tubes 4, -and, on the other hand, to a pipe 10 for starting fluid connected to the outlet of the tubes 4, the pipes 8 and 10 each being provided with a fixing flange.

Grâce à l'invention, il est possible de réaliser un élément modulaire standard permettant une adDtation aisée d'une taille d'échangeur à une puissance de four donnée par simple superposition de plusieurs éléments identiques, les trémies de décendrage 7 étant alors uniquement prévues sur l'élément inférieur qui est relié à la sortie de fumée, et l'élément supérieur étant relié au foyer du four. Thanks to the invention, it is possible to produce a standard modular element allowing easy addition of an exchanger size to a given furnace power by simple superimposition of several identical elements, the ash hoppers 7 then being only provided on the lower element which is connected to the smoke outlet, and the upper element being connected to the furnace hearth.

I1 est également possible de monter directement la partie 1 de l'échangeur au-dessus du foyer du four, la circulation des fumées s'effectue alors d'une manière inverse à celle représentée à la figure 2. It is also possible to directly mount part 1 of the exchanger above the furnace hearth, the circulation of the fumes then takes place in a reverse manner to that shown in FIG. 2.

Dans le cas d'une superposition de plusieurs échangeurs conformes à l'invention, les conduites 8 d'amenée de fluide peuvent être reliées à une conduite générale d'alimentation en parallèle dans le cas où le fluide caloporteur est de la vapeur, les conduites de départ 10 étant également branchées en parallèle sur une conduite de départ générale, et, dans le cas où le fluide caloporteur est de l'eau surchauffée, la conduite de départ 10 de l'élément inférieur peut être raccordée en série à la conduite d'amenée 8 de l'élément superposé, seules les conduites d'amenée 8 de l'élément inférieur et de départ 10 de l'élément supérieur étant reliées aux conduites générales d'alimentation et de départ. In the case of a superposition of several exchangers in accordance with the invention, the pipes 8 for supplying fluid can be connected to a general supply pipe in parallel in the case where the heat transfer fluid is steam, the pipes flow 10 also being connected in parallel to a general flow line, and, in the case where the heat transfer fluid is superheated water, the flow line 10 of the lower element can be connected in series to the line d 'supply 8 of the superimposed element, only the supply lines 8 of the lower element and departure 10 of the upper element being connected to the general supply and departure lines.

Bien entendu, l'invention n'est pas limitée au mode de réalisation décrit et représenté au dessin annexé. Des modifications restent possibles, notamment du point de vue de la constitution des divers éléments, ou par substitution d'équivalents techniques, sans sortir pour autant du domaine de protection de l'invention.  Of course, the invention is not limited to the embodiment described and shown in the accompanying drawing. Modifications remain possible, in particular from the point of view of the constitution of the various elements, or by substitution of technical equivalents, without thereby departing from the scope of protection of the invention.

Claims (2)

REVENDICATIONS 1. Echangeur de chaleur pour sortie de fumée de fours industriels, en particulier de fours d'incinération de déchets, caractérisé en ce qu'il se présente sous forme d'un élément modulaire essentiellement constitué par une partie (1) de refroidissement des fumées par rayonnement réalisée parut ou plusieurs tubes d'acier (4) enroulés en spirale de manière à former une cheminée à paroi refroidie par le fluide en circulation dans les tubes, et par une partie (2) de refroidissement des fumées par conveCdon juxtaposée à la première partie (l) et formée par des serpentins de tubes d'acier (5) disposés suivant un faisceau de tubes horizontaux espacés régulièrement, l'en- semble étant maintenu et enfermé dans une ossature métallique (3). 1. Heat exchanger for smoke outlet from industrial ovens, in particular waste incineration ovens, characterized in that it is in the form of a modular element essentially constituted by a part (1) for cooling the fumes by radiation produced by or several steel tubes (4) wound in a spiral so as to form a chimney with a wall cooled by the fluid circulating in the tubes, and by a part (2) for cooling the fumes by conveCdon juxtaposed with the first part (1) and formed by coils of steel tubes (5) arranged in a bundle of regularly spaced horizontal tubes, the assembly being maintained and enclosed in a metal frame (3). 2. Echangeur, suivant la revendication 1, caractérisé en ce que les faisceaux de tubes horizontaux (5) présentent des longueurs de tubes différentes de telle sorte que ces derniers s'ajustent intimement à la paroi externe des tubes (4) formant la partie (1), afin d'éliminer tout risque de subsistance d'un passage préférentiel pour les fumées.  2. Exchanger according to claim 1, characterized in that the bundles of horizontal tubes (5) have different lengths of tubes so that the latter fit intimately to the external wall of the tubes (4) forming the part ( 1), in order to eliminate any risk of subsistence of a preferential passage for the fumes.
FR8219018A 1982-11-08 1982-11-08 Heat exchanger for the fume outlet of industrial furnaces, in particular of furnaces for incineration of waste. Pending FR2535837A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8219018A FR2535837A1 (en) 1982-11-08 1982-11-08 Heat exchanger for the fume outlet of industrial furnaces, in particular of furnaces for incineration of waste.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8219018A FR2535837A1 (en) 1982-11-08 1982-11-08 Heat exchanger for the fume outlet of industrial furnaces, in particular of furnaces for incineration of waste.

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FR2535837A1 true FR2535837A1 (en) 1984-05-11

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0234117A2 (en) * 1986-01-31 1987-09-02 Shinichi Okumura Boiler apparatus utilizing exhaust gas heat
US5687656A (en) * 1994-10-25 1997-11-18 Mitsubishi Jukogyo Kabushiki Kaisha Denitration apparatus for a caol-fired boiler
CN102230609A (en) * 2011-06-17 2011-11-02 江苏太湖锅炉股份有限公司 Modular heating furnace
CN106052426A (en) * 2016-07-26 2016-10-26 云南汇能科技有限公司 Yellow phosphorus tail gas afterheat utilization device

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DE2000886A1 (en) * 1970-01-09 1971-07-15 Daimler Benz Ag Tube heat exchanger
DE2922428A1 (en) * 1979-06-01 1980-12-04 Erwin Betting Boiler waste heat recuperating heat exchanger - has insulated coil wound around flue gas outlet pipe, for circulation of heat exchange liq.

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0234117A2 (en) * 1986-01-31 1987-09-02 Shinichi Okumura Boiler apparatus utilizing exhaust gas heat
EP0234117A3 (en) * 1986-01-31 1988-11-30 Shinichi Okumura Boiler apparatus utilizing exhaust gas heat
US5687656A (en) * 1994-10-25 1997-11-18 Mitsubishi Jukogyo Kabushiki Kaisha Denitration apparatus for a caol-fired boiler
CN102230609A (en) * 2011-06-17 2011-11-02 江苏太湖锅炉股份有限公司 Modular heating furnace
CN106052426A (en) * 2016-07-26 2016-10-26 云南汇能科技有限公司 Yellow phosphorus tail gas afterheat utilization device
CN106052426B (en) * 2016-07-26 2018-02-06 云南汇能科技有限公司 A kind of yellow phosphoric tail gas residual heat using device

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