EP0105805B1 - Air-tight heater assembly with forced draft - Google Patents

Air-tight heater assembly with forced draft Download PDF

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Publication number
EP0105805B1
EP0105805B1 EP83401916A EP83401916A EP0105805B1 EP 0105805 B1 EP0105805 B1 EP 0105805B1 EP 83401916 A EP83401916 A EP 83401916A EP 83401916 A EP83401916 A EP 83401916A EP 0105805 B1 EP0105805 B1 EP 0105805B1
Authority
EP
European Patent Office
Prior art keywords
shell
boiler
boiler according
exchanger
fan
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
Application number
EP83401916A
Other languages
German (de)
French (fr)
Other versions
EP0105805A1 (en
Inventor
Jean-Claude Charron
Philippe Mulsant
Yvan Poujoulat
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.)
Saunier Duval Eau Chaude Chauffage SDECC SA
Original Assignee
Saunier Duval Eau Chaude Chauffage SDECC 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 Saunier Duval Eau Chaude Chauffage SDECC SA filed Critical Saunier Duval Eau Chaude Chauffage SDECC SA
Priority to AT83401916T priority Critical patent/ATE20774T1/en
Publication of EP0105805A1 publication Critical patent/EP0105805A1/en
Application granted granted Critical
Publication of EP0105805B1 publication Critical patent/EP0105805B1/en
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/02—Casings; Cover lids; Ornamental panels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
    • F24H1/403—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes the water tubes being arranged in one or more circles around the burner
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H2203/00—** to be deleted **

Definitions

  • the invention relates to a sealed gas boiler with forced draft and specifically relates to a new arrangement of the sealed enclosure provided for the evacuation of the burnt gases.
  • boilers in which the heat exchanger consists of a cylindrical bundle of vertical tubes interconnecting end collectors, exchanger which delimits a combustion chamber through which the flame of a burner which transfers heat to the water circulating in these tubes.
  • this exchanger is disposed vertically inside an insulating envelope, the burner being disposed just above the combustion chamber.
  • the invention therefore aims to eliminate the aforementioned difficulties inherent in these devices and for this purpose offers a particular arrangement characterized in that the sealed and anti-noise shell enveloping the cylindrical exchanger is suspended in the upper half of the frame.
  • the boiler to a horizontal plate fixed to the frame above which the air intake and combustion product evacuation ducts are arranged, as well as the fan, and the central inlet opening of the exchanger at level of said plate is in the axis of the outlet pipe of the fan, and the periphery of the shell at the level of the plate also includes the outlet for the combustion products collected by the sealed shell which passes through said plate and is at least approximately in the axis of the duct for discharging said products from the boiler.
  • the boiler shown essentially comprises a backrest 2 for its attachment to the mounting wall of the room, and side frames 3 having large openings, these elements 2 and 3 constituting the frame 1 of the device.
  • a horizontal plate 4 which is also supported by an angle 5 arranged transversely to the frames 3.
  • This horizontal plate 4 slightly offset laterally relative to the axis of the frame 1 supports a heat exchanger 6 consisting of a cylindrical layer of water tubes 7 arranged vertically and interconnected by a lower circular collector 8 and by an upper circular collector 9, these tubes thus forming a cylindrical combustion chamber 10.
  • the heat exchanger 6 is provided with a central opening 11 at its upper part, on the other hand it is closed by a bottom at its lower part.
  • the horizontal plate 4 comprises at the base of the central inlet orifice 11 of the exchanger 6, a cutout 12 for, on the one hand, the positioning in said exchanger 6 of a burner 13, for example of the torch type, the flame is oriented downwards and on the other hand the passage of the pipes 14 for the inlet and outlet of water from the exchanger.
  • the heat exchanger 6 is wrapped in a waterproof and anti-noise shell 15 of substantially oval shape which is removably supported under the horizontal plate 4 by clips 16.
  • This waterproof shell 15, for example made of molded plastic or produced semi-rigid or flexible analog, present on its upper edge which is applied under the horizontal plate 4 a groove 24 in which is placed an O-ring 25 to ensure sealing.
  • an orifice 26 In the bottom of the sealed shell 15 is provided an orifice 26 for the evacuation of condensates.
  • the sealed shell 15 is offset laterally in the frame 1 and leaves on the side a space for the possible mounting of a sanitary water exchanger, not shown.
  • An upper cover 17 which closes the frame serves as a support for the conduit 19 for the admission of fresh air inside which and coaxially is arranged in known manner another conduit 18 of smaller diameter for the evacuation of the burnt gases.
  • an air-gas mixing chamber 27 which is - by its upper part -, directly in communication with the duct 19 for admitting fresh air by means of said distribution box 20 and - by a lateral face -, connected to the inlet orifice 28 of a fan 29 by means of a tube 30.
  • a gas injector 31 disposed horizontally in the axis of the tube 30 allows the injection of gas and its mixture with air in said tube.
  • the fan 29 is mounted under the upper cover 17 so that its outlet pipe 32 directly connected to the burner 13 is located in the axis of the central inlet orifice 11 of the heat exchanger 6.
  • the movement of air and gas inside these different elements is therefore ensured by the fan 29.
  • the fresh air is sucked in from the outside through the duct 19 and the distribution box 20 into the mixing chamber 27 to form with the gas in said chamber a combustible mixture which penetrates through the tube 30 into the fan 29 before being injected through the pipe 32 into the burner 13 where it ignites.
  • the products of combustion pass through the cylindrical layer of water tubes 7, then are collected in the sealed shell 15 and are then discharged towards the outside by the connection tube 22 and the evacuation duct 18.
  • the shell 15 is produced in the form of a parallelepipedal box also covering the orifice 23 for the outlet of the combustion products.
  • the device thus described by way of nonlimiting example is therefore of reduced size while allowing easy accessibility of the various mechanisms which facilitates assembly, disassembly and maintenance operations.
  • these mechanisms being properly ventilated by the ambient atmosphere and thermally insulated from the hot part by the sealed shell, can be made of common material, in particular with parts of plastic material.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Housings, Intake/Discharge, And Installation Of Fluid Heaters (AREA)
  • Resistance Heating (AREA)
  • Combustion Of Fluid Fuel (AREA)
  • Gas Burners (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The invention relates to a forced draft household gas boiler having a sealed enclosure for the combustion assembly of the boiler. A sealed shell (15) envelopes a cylindrical heat exchanger (6) and is suspended in the upper half of a frame (1) from a horizontal plate (4) so that a central inlet opening (11) of the heat exchanger is in the axis of an outlet tube (32) of a fan (29) which directs an air/gas mixture into the burner. An outlet opening (23) for the combustion products collected in the sealed shell (15) is located within the circumference of the shell and at least approximately in the axis of an evacuation pipe (18) for evacuating combustion products external of the boiler.

Description

L'invention se rapporte à une chaudière étanche à gaz à tirage forcé et concerne précisément un nouvel agencement de l'enceinte étanche prévue pour l'évacuation des gaz brûlés.The invention relates to a sealed gas boiler with forced draft and specifically relates to a new arrangement of the sealed enclosure provided for the evacuation of the burnt gases.

On connaît des chaudières à gaz dont la chambre de combustion, reliée à l'atmosphère en dehors du local, est isolée de façon étanche aux gaz par rapport à ce local. Ces appareils sont, dans certains cas, entourés d'une chambre intermédiaire servant à l'alimentation en air et enveloppant de manière étanche la chambre de combustion, laquelle chambre est elle-même incorporée dans l'enveloppe externe de l'appareil. Dans d'autres appareils connus, c'est l'enveloppe externe de l'appareil qui forme cette chambre intermédiaire étanche, l'évacuation des gaz brûlés s'effectuant à partir de cette chambre de combustion par l'intermédiaire d'une hotte, d'un ventilateur d'extraction et d'un conduit de sortie dont on sait qu'il est avantageusement concentrique au conduit d'amenée d'air frais, comme décrits dans le brevet DE-A-2 458 865.There are known gas boilers whose combustion chamber, connected to the atmosphere outside the room, is insulated in a gas-tight manner with respect to this room. These appliances are, in certain cases, surrounded by an intermediate chamber serving for the air supply and sealingly enveloping the combustion chamber, which chamber is itself incorporated in the external envelope of the appliance. In other known devices, it is the external envelope of the device which forms this sealed intermediate chamber, the evacuation of the burnt gases being effected from this combustion chamber by means of a hood, an exhaust fan and an outlet duct which it is known to be advantageously concentric with the duct for supplying fresh air, as described in patent DE-A-2 458 865.

On connaît également, notamment par le brevet EP-A-052055, des chaudières dans lesquelles l'échangeur thermique est constitué d'un faisceau cylindrique de tubes verticaux reliant entre eux des collecteurs d'extrémités, échangeur qui délimite une chambre de combustion parcourue par la flamme d'un brûleur qui cède la chaleur à l'eau circulant dans ces tubes. Certaines dispositions préférentielles prévoient que cet échangeur est disposé verticalement à l'intérieurd'une enveloppe isolante, le brûleur étant disposé juste au-dessus de la chambre de combustion.Also known, in particular from patent EP-A-052055, boilers in which the heat exchanger consists of a cylindrical bundle of vertical tubes interconnecting end collectors, exchanger which delimits a combustion chamber through which the flame of a burner which transfers heat to the water circulating in these tubes. Certain preferential provisions provide that this exchanger is disposed vertically inside an insulating envelope, the burner being disposed just above the combustion chamber.

Mais ces appareils présentent toutefois un certain nombre d'insuffisances en ce qui concerne leur montage, leur accessibilité et notamment leur étanchéité, car celle-ci doit en outre être assurée aux points de passage des tuyauteries gaz ou eau ce qui crée un certain nombre de problèmes.However, these devices however have a certain number of shortcomings with regard to their mounting, their accessibility and in particular their tightness, because this must also be ensured at the points of passage of the gas or water pipes, which creates a certain number of problems.

L'invention a donc pour but de supprimer les difficultés précitées inhérentes à ces appareils et propose à cet effet un agencement particulier caractérisé par le fait que la coquille étanche et anti-bruit enveloppant l'échangeur cylindrique est suspendue dans la moitié supérieure du bâti de la chaudière à une plaque horizontale fixée au bâti au-dessus de laquelle sont disposés les conduits d'admission d'air et d'évacuation des produits de combustion ainsi que le ventilateur, que l'orifice central d'entrée de l'échangeur au niveau de ladite plaque est dans l'axe de la tubulure de sortie du ventilateur, et que le pourtour de la coquille au niveau de la plaque englobe également l'orifice de sortie des produits de combustion collectés par la coquille étanche qui traverse ladite plaque et se trouve au moins approximativement dans l'axe du conduit d'évacuation desdits produits hors de la chaudière.The invention therefore aims to eliminate the aforementioned difficulties inherent in these devices and for this purpose offers a particular arrangement characterized in that the sealed and anti-noise shell enveloping the cylindrical exchanger is suspended in the upper half of the frame. the boiler to a horizontal plate fixed to the frame above which the air intake and combustion product evacuation ducts are arranged, as well as the fan, and the central inlet opening of the exchanger at level of said plate is in the axis of the outlet pipe of the fan, and the periphery of the shell at the level of the plate also includes the outlet for the combustion products collected by the sealed shell which passes through said plate and is at least approximately in the axis of the duct for discharging said products from the boiler.

L'invention sera mieux comprise à l'aide de la description suivante d'un exemple de réalisation en référence à la figure unique annexée qui représente: une vue en perspective de l'ensemble de l'appareil.The invention will be better understood with the aid of the following description of an exemplary embodiment with reference to the single appended figure which represents: a perspective view of the entire apparatus.

La chaudière représentée comporte essentiellement un dossier 2 pour sa fixation sur la paroi de montage du local, et des armatures latérales 3 présentant de larges ouvertures, ces éléments 2 et 3 constituant le bâti 1 de l'appareil. Dans la moitié supérieure du bâti 1 est fixée sur le dossier 2, une plaque horizontale 4 qui est également soutenue par une cornière 5 disposée transversalement aux armatures 3. Cette plaque horizontale 4 légèrement décalée latéralement par rapport à l'axe du bâti 1 supporte un échangeur thermique 6 constitué d'une nappe cylindrique de tubes d'eau 7 disposés verticalement et reliés entre eux par un collecteur circulaire inférieur 8 et par un collecteur circulaire supérieur 9, ces tubes formant ainsi une chambre de combustion cylindrique 10. L'échangeur thermique 6 est muni d'un orifice central 11 à sa partie supérieure, par contre il est fermé par un fond à sa partie inférieure.The boiler shown essentially comprises a backrest 2 for its attachment to the mounting wall of the room, and side frames 3 having large openings, these elements 2 and 3 constituting the frame 1 of the device. In the upper half of the frame 1 is fixed on the backrest 2, a horizontal plate 4 which is also supported by an angle 5 arranged transversely to the frames 3. This horizontal plate 4 slightly offset laterally relative to the axis of the frame 1 supports a heat exchanger 6 consisting of a cylindrical layer of water tubes 7 arranged vertically and interconnected by a lower circular collector 8 and by an upper circular collector 9, these tubes thus forming a cylindrical combustion chamber 10. The heat exchanger 6 is provided with a central opening 11 at its upper part, on the other hand it is closed by a bottom at its lower part.

La plaque horizontale 4 comporte à l'aplomb de l'orifice central d'entrée 11 de l'échangeur 6, une découpe 12 pour d'une part le positionnement dans ledit échangeur 6 d'un brûleur 13 par exemple du type torche dont la flamme est orientée vers le bas et d'autre part le passage des conduites 14 d'arrivée et de sortie d'eau de l'échangeur.The horizontal plate 4 comprises at the base of the central inlet orifice 11 of the exchanger 6, a cutout 12 for, on the one hand, the positioning in said exchanger 6 of a burner 13, for example of the torch type, the flame is oriented downwards and on the other hand the passage of the pipes 14 for the inlet and outlet of water from the exchanger.

L'échangeur thermique 6 est enveloppé d'une coquille 15 étanche et anti-bruit de forme sensiblement ovale qui est soutenue de manière amovible sous la plaque horizontale 4 par des clips 16. Cette coquille étanche 15, par exemple en matière plastique moulée ou produit analogue semi-rigide ou souple, présente sur son bord supérieur qui s'applique sous la plaque horizontale 4 une rainure 24 dans laquelle est placé un joint torique 25 pour assurer l'étanchéité. Dans le fond de la coquille étanche 15 est prévu un orifice 26 pour l'évacuation des condensats. La coquille étanche 15 est décalée latéralement dans le bâti 1 et laisse sur le côté un espace pour le montage éventuel d'un échangeur d'eau sanitaire, non représenté.The heat exchanger 6 is wrapped in a waterproof and anti-noise shell 15 of substantially oval shape which is removably supported under the horizontal plate 4 by clips 16. This waterproof shell 15, for example made of molded plastic or produced semi-rigid or flexible analog, present on its upper edge which is applied under the horizontal plate 4 a groove 24 in which is placed an O-ring 25 to ensure sealing. In the bottom of the sealed shell 15 is provided an orifice 26 for the evacuation of condensates. The sealed shell 15 is offset laterally in the frame 1 and leaves on the side a space for the possible mounting of a sanitary water exchanger, not shown.

Un capot supérieur 17 qui ferme le bâti sert de support au conduit 19 d'admission d'air frais à l'intérieur duquel et coaxialement est disposé de façon connue un autre conduit 18 de plus petit diamètre pour l'évacuation des gaz brûlés.An upper cover 17 which closes the frame serves as a support for the conduit 19 for the admission of fresh air inside which and coaxially is arranged in known manner another conduit 18 of smaller diameter for the evacuation of the burnt gases.

La partie supérieure du bâti, limitée en bas par la plaque horizontale 4 et en haut par le capot 17, délimite une chambre qui sert de logement aux différents éléments assurant la circulation des mélanges gazeux, qui sont les suivants:

  • - une boîte de distribution ou boîte à air 20 ayant une forme oblongue plate est montée au-dessous du capot supérieur 17 de façon à être directement en communication avec le conduit 19 d'admission d'air. Le conduit 18 d'évacuation des gaz brûlés débouchant à l'intérieur de la boîte de distribution 20 est relié par l'intermédiaire d'un raccord 21 à un tube vertical 22 de liaison qui est lui-même raccordé à la coquille étanche 15 par un orifice 23 prévu dans la plaque horizontale 4. Au niveau de la plaque 4, le pourtour de la coquille étanche englobe donc le tube de liaison 22 d'évacuation des gaz brûlés. Ce tube de liaison 22 se trouve par conséquent approximativement dans l'axe du conduit d'évacuation 18 des produits de combustion hors de l'appareil.
The upper part of the frame, limited at the bottom by the horizontal plate 4 and at the top by the cover 17, delimits a chamber which serves as housing for the various elements ensuring the circulation of the gaseous mixtures, which are as follows:
  • - A distribution box or air box 20 having a flat oblong shape is mounted below the upper cover 17 so as to be directly in communication with the air intake duct 19. The conduit 18 for evacuating the burnt gases opening out inside the distribution box 20 is connected by means of a connector 21 to a vertical connecting tube 22 which is itself connected to the sealed shell 15 by an orifice 23 provided in the horizontal plate 4. At the level of the plate 4, the periphery of the sealed shell therefore includes the connection tube 22 for discharging the burnt gases. This connecting tube 22 is therefore located approximately in the axis of the evacuation pipe 18 of the combustion products out of the appliance.

Au-dessous de la boîte de distribution 20 est fixée une chambre de mélange air-gaz 27 qui est - par sa partie supérieure -, directement en communication avec le conduit 19 d'admission d'air frais par l'intermédiaire de ladite boîte de distribution 20 et - par une face latérale -, raccordée à l'orifice d'entrée 28 d'un ventilateur 29 par l'intermédiaire d'une trompe 30. Un injecteur de gaz 31 disposé horizontalement dans l'axe de la trompe 30 permet l'injection de gaz et son mélange à l'air dans ladite trompe.Below the distribution box 20 is fixed an air-gas mixing chamber 27 which is - by its upper part -, directly in communication with the duct 19 for admitting fresh air by means of said distribution box 20 and - by a lateral face -, connected to the inlet orifice 28 of a fan 29 by means of a tube 30. A gas injector 31 disposed horizontally in the axis of the tube 30 allows the injection of gas and its mixture with air in said tube.

Le ventilateur 29 est monté sous le capot supérieur 17 de telle manière que sa tubulure de sortie 32 directement reliée au brûleur 13 se trouve dans l'axe de l'orifice central d'entrée 11 de l'échangeur thermique 6.The fan 29 is mounted under the upper cover 17 so that its outlet pipe 32 directly connected to the burner 13 is located in the axis of the central inlet orifice 11 of the heat exchanger 6.

Le mouvement d'air et de gaz à l'intérieur de ces différents éléments est donc assuré par le ventilateur 29. L'air frais est aspiré de l'extérieur par le conduit 19 et la boîte de distribution 20 dans la chambre de mélange 27 pour former avec le gaz dans ladite chambre un mélange combustible qui pénètre par la trompe 30 dans le ventilateur 29 avant d'être injecté par la tubulure 32 dans le brûleur 13 où il s'enflamme. Les produits de combustion traversent la nappe cylindrique de tubes d'eau 7, puis sont recueillis dans la coquille étanche 15 et sont ensuite refoulés vers l'extérieur par le tube de liaison 22 et le conduit d'évacuation 18.The movement of air and gas inside these different elements is therefore ensured by the fan 29. The fresh air is sucked in from the outside through the duct 19 and the distribution box 20 into the mixing chamber 27 to form with the gas in said chamber a combustible mixture which penetrates through the tube 30 into the fan 29 before being injected through the pipe 32 into the burner 13 where it ignites. The products of combustion pass through the cylindrical layer of water tubes 7, then are collected in the sealed shell 15 and are then discharged towards the outside by the connection tube 22 and the evacuation duct 18.

Selon une variante de réalisation non représentée, la coquille 15 est réalisée sous forme d'un boîtier parallélépipédique coiffant également l'orifice 23 de sortie des produits de combustion.According to a variant embodiment not shown, the shell 15 is produced in the form of a parallelepipedal box also covering the orifice 23 for the outlet of the combustion products.

L'appareil ainsi décrit à titre d'exemple non limitatif est donc d'un encombrement réduit tout en permettant une accessibilité aisée des différents mécanismes ce qui facilite les opérations de montage, démontage et de maintenance. De plus, ces mécanismes étant correctement aérés par l'atmosphère ambiante et isolés thermiquement de la partie chaude par la coquille étanche, peuvent être réalisés en matériau courant notamment avec des pièces en matériau plastique.The device thus described by way of nonlimiting example is therefore of reduced size while allowing easy accessibility of the various mechanisms which facilitates assembly, disassembly and maintenance operations. In addition, these mechanisms being properly ventilated by the ambient atmosphere and thermally insulated from the hot part by the sealed shell, can be made of common material, in particular with parts of plastic material.

Claims (13)

1. An air tight domestic boiler assembly with forced draught comprising within a frame (1)acylin- drical (heat) exchanger (6) formed by a screen of water tubes (7) disposed vertically and surrounding a combustion chamber (10) enclosing a burner (13), for instance of the torch type, whose flame is directed downwards, a fresh air intake leading to a mixing chamber (27) supplied with gas by an injector (31 a fan (29) between this chamber and the burner and an exhaust (18) for the exhaust gases collected in a leak proof shell (15) which surrounds the exchanger, characterised in that the leak proof and sound proofing shell (15) surrounding the cylindrical exchanger (6) is suspended in the upper half of the frame (1) on a horizontal plate (4) fixed to the frame (1) on top of which, there are disposed - in the upper portion of the frame - the pipes (18-19) for the air intake and exhaust of the combustion products as well as the fan (29) thatthe central inlet opening (11) of the exchanger (6) at the level of the said plate is coaxial with the outlettubing (32) of the fan (29) that the circumference of the shell (15) also encompasses at the level of the plate (4), the outlet opening for the combustion products collected by the sealed shell which traverses the said plate and is at least approximately coaxial with the pipe (18) for evacuating the said products out of the boiler.
2. A boiler according to claim 1, characterised in that the shell (15) has a substantially oval shape.
3. A boiler according to claim 1, characterised in that the shell (15) has a substantially parallelepiped shape.
4. Aboiler according to claim 2 and 3, characterised in that the shell (15) is made of a semi-rigid or flexible moulded plastic material or a similar product.
5. A boiler according to claim 1, characterised in that the shell (15) is supported in a detachable manner under the horizontal plate (4) by clips (16).
6. A boiler according to claim 1, characterised in that the upper edge of the shell (15) applied under the horizontal plate (4), comprises a groove (24) for the positioning of an O ring (25).
7. A boiler according to claim 1, characterised in that the outlet opening for the combustion products collected by the shell (15) is joined to the exhaust pipe (18) for the said products by a vertical connecting tube (22) and a union (21).
8. A boiler according to claim 1, characterised in that provision is made in the bottom of shell (15) for an opening (26) for the evacuation of condensates.
9. A boiler according to claim 1, characterised in that the shell (1 5) is offset laterally in frame (1) of the boiler and leaves a space on the side forthe mounting of a sanitary water exchanger.
10. A boiler according to claim 1, characterised in that the fresh air intake is effected via a distribution box (20) which is mounted below the upper cover (17) of the boiler.
11. A boiler according to claim 1 and 10, characterised in that the mixing chamber (27) fixed below the distribution box (20) is - via its upper portion - directly communicating with the fresh air intake and connected through a lateral face to the intake opening (28) of the fan (29) via a flaring duct (30).
12. A boiler according to claim 1, characterised in that the central axis of the heat exchanger (6) is slightly offset in relation to the pipes (18-19) for the evacuation of combustion products and for the fresh air intake.
13. A boiler according to claim 1, characterised in that the horizontal plate (4) comprises a central cut out (12) for the connection of the burner (13) to the outlet pipe (32) of fan (29) and the passing of the pipes (14) for the water intake and output of the exchanger (6).
EP83401916A 1982-10-05 1983-09-30 Air-tight heater assembly with forced draft Expired EP0105805B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83401916T ATE20774T1 (en) 1982-10-05 1983-09-30 GAS TIGHT BOILER WITH EXHAUST.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8216664A FR2534005A1 (en) 1982-10-05 1982-10-05 ARRANGEMENT OF A FORCE DRAIN GAS BOILER
FR8216664 1982-10-05

Publications (2)

Publication Number Publication Date
EP0105805A1 EP0105805A1 (en) 1984-04-18
EP0105805B1 true EP0105805B1 (en) 1986-07-16

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Application Number Title Priority Date Filing Date
EP83401916A Expired EP0105805B1 (en) 1982-10-05 1983-09-30 Air-tight heater assembly with forced draft

Country Status (7)

Country Link
US (1) US4491092A (en)
EP (1) EP0105805B1 (en)
JP (1) JPS59100338A (en)
AT (1) ATE20774T1 (en)
DE (1) DE3364530D1 (en)
ES (1) ES526236A0 (en)
FR (1) FR2534005A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2577309B1 (en) * 1985-02-13 1987-04-17 Sdecc MODULATING GAS BOILER OF THE WATERPROOF TYPE CONDENSING, WITH QUIET OPERATION.
US6019069A (en) * 1991-12-30 2000-02-01 Bowin Technology Pty. Ltd. Gas-fired heaters with burners which operate without secondary air and have a substantially sealed combustion chamber
US5632236A (en) * 1991-12-30 1997-05-27 Bowin Technology Pty. Ltd. Gas-fired heaters with burners which operate without secondary air and have a substantially sealed combustion chamber
WO1993013360A1 (en) * 1991-12-30 1993-07-08 Bowin Designs Pty. Ltd. Gas-fired heaters with burners which operate without secondary air
US5435716A (en) * 1991-12-30 1995-07-25 Bowin Designs Pty Ltd Gas-fired heaters with burners having a substantially sealed combustion chamber
CN104110858B (en) * 2013-07-24 2017-10-27 芜湖美的厨卫电器制造有限公司 For the housing unit of water heater and the water heater with it
ITAN20130237A1 (en) * 2013-12-10 2015-06-11 Ariston Thermo Spa COVER FOR CONDENSING BOILERS

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1923614A (en) * 1931-04-06 1933-08-22 Clarkson Thomas Burner control system
FR2327496A1 (en) * 1973-12-13 1977-05-06 Saunier Duval LAYOUT AND ASSEMBLY OF THE SEALED ENCLOSURE AND OF THE COMBUSTION CHAMBER OF A SEALED GAS BOILER WITH FORCED DRAFT
DE2837004A1 (en) * 1978-08-24 1980-03-06 Bernstein Lennart METHOD AND HEATING BOILER FOR HEATING THE HEATING WATER IN A HOT WATER CENTRAL HEATING SYSTEM, ESPECIALLY FOR DETACHED AND MULTI-FAMILY RESIDENTIAL HOUSES
US4287857A (en) * 1979-09-11 1981-09-08 Leo Schnitzer Burner-boiler combination and an improved burner construction therefor
FR2499223B1 (en) * 1979-11-23 1985-06-28 Landreau Andre BOILER, ESPECIALLY FOR A HEATING SYSTEM
JPS5850978Y2 (en) * 1980-09-16 1983-11-21 飯田工業株式会社 Mechanism for adjusting the position of the plane blade on a wood plane machine
FR2493483A1 (en) * 1980-10-31 1982-05-07 Sdecc WATER HEAT EXCHANGER SEALED CHAMBER OF LONGITUDINAL WATER TUBES LOCATED CONCENTRICALLY AT CENTRAL BURNER
JPS6367113B2 (en) * 1980-11-07 1988-12-23 Sonie Deyubaru O Shoodo Shofuaaju Esu Dee Uu See See Sa

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DE3364530D1 (en) 1986-08-21
JPH0442585B2 (en) 1992-07-13
FR2534005A1 (en) 1984-04-06
JPS59100338A (en) 1984-06-09
ES8405500A1 (en) 1984-06-16
ES526236A0 (en) 1984-06-16
EP0105805A1 (en) 1984-04-18
US4491092A (en) 1985-01-01
ATE20774T1 (en) 1986-08-15
FR2534005B1 (en) 1985-02-15

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