EP0062573A1 - Heater for combustible solids - Google Patents

Heater for combustible solids Download PDF

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Publication number
EP0062573A1
EP0062573A1 EP82400563A EP82400563A EP0062573A1 EP 0062573 A1 EP0062573 A1 EP 0062573A1 EP 82400563 A EP82400563 A EP 82400563A EP 82400563 A EP82400563 A EP 82400563A EP 0062573 A1 EP0062573 A1 EP 0062573A1
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EP
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Prior art keywords
combustion chamber
boiler according
tubes
composite wall
sheets
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EP82400563A
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German (de)
French (fr)
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EP0062573B1 (en
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Pierre Peyrot
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    • 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
    • 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
    • F24H1/24—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
    • 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
    • F24H1/44—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with combinations of two or more of the types covered by groups F24H1/24 - F24H1/40 , e.g. boilers having a combination of features covered by F24H1/24 - F24H1/40

Definitions

  • the invention relates to a solid fuel boiler, in particular for wood, charcoal or charcoal, the design of which enables a sufficiently high operating temperature to be achieved so that the combustion of this type of fuel is as complete as possible. to avoid tarring or bistrage of boiler elements and chimney flues.
  • the object of the invention is to resolve all these drawbacks, mainly by proposing a boiler structure making it possible to increase the temperature of the hearth appreciably, this in order to reduce the formation of tar or fatty soot and to eliminate condensation.
  • the invention mainly relates to a solid fuel boiler, in particular for wood, charcoal and / or coal, of the type comprising a combustion chamber, a smoke evacuation nozzle and a heat exchanger in thermal contact. with said combustion chamber and in which a heat transfer fluid such as water is capable of circulating in order to be heated, characterized in that said combustion chamber is essentially delimited by a composite wall comprising a quilting of refractory bricks simply stacked one on top of the other the others and consolidated by a support system comprising in particular a metallic external envelope, preferably removable.
  • the heat exchanger comprises water circulation tubes, inserted in said composite wall, between the bricks, and welded to internal sheets of said holding system. This facilitates the exchange of heat between the hearth and this part of the exchanger, while avoiding the deformation of the internal sheets of the holding system, since these are permanently cooled by the flow of the coolant.
  • the boiler essentially consists of a combustion chamber II provided, at the rear, with a smoke evacuation nozzle 12 and, at the front, with an upper door 13, for loading the fuel, as well than a lower door 14, for cleaning.
  • These two doors each consist of two parallel sheet metal plates, assembled at their periphery, between which a thickness of glass wool is inserted.
  • the lower door 14 further comprises a movable flap 15 regulating the flow of combustion air.
  • a heat exchanger 16 is arranged all around the combustion chamber to present optimal thermal contact with the hearth. This exchanger has a nozzle 17 for the departure of hot water, at its upper part, and a nozzle 18 for the return of water, at its lower part.
  • the combustion chamber 11 is essentially delimited by a composite wall 19 comprising a quilting of refractory bricks 20, which bricks are stacked one on the other, mainly on the two lateral faces of the combustion chamber. combustion and over part of the height of the rear face.
  • this quilting is consolidated by a holding system 21. comprising in particular an outer casing 21a, made of sheets, which can be dismantled.
  • This holding system also includes internal sheets 21b, arranged vertically step by step between parts of the brick quilting. The sheets 21b are each welded to water circulation tubes 25 of the exchanger 16. Thus, the function of these internal sheets is twofold.
  • the outer envelope 21a is itself surrounded by an insulation barrier 26 comprising a certain thickness of glass wool or the like.
  • an insulation barrier 26 comprising a certain thickness of glass wool or the like.
  • the interstitial spaces 27 between the bricks and the tubes 25 inserted in the composite wall are filled with sand.
  • This exchanger is in the form of a cage and comprises, in particular, a lower horizontal part forming a grid 28 for supporting the fuel.
  • This grid is composed of a tubular frame 28a, rectangular, composed of relatively large section tubes and a plurality of parallel tubes 28b, of smaller section, connected to the frame 28a.
  • the tubes 25 inserted in the composite wall 19 are arranged vertically and connected between the frame 28a and a horizontal tank 29, upper, surmounting the combustion chamber II.
  • a rear laminar passage 30 extends along substantially the entire rear face of the combustion chamber II. It establishes a connection between the frame 28a and the horizontal tank 29. This rear passage is protected up to a certain height by a part of the brick quilting.
  • a means for drying the fumes is disposed in the combustion chamber, in the vicinity of the exhaust nozzle 12. It is a system of baffles 34 made of sheet metal, projecting inside the combustion chamber and extending in the extension of the internal orifice 12a of the exhaust nozzle 12.
  • the baffle system consists of a stack of flat, parallel sheets, extending over the entire width of the combustion chamber 11, in front of the internal orifice 12a. In this way, the fumes are forced to circulate in this system of overheated baffles, before being evacuated from the combustion chamber.
  • an anti-boiling safety system mainly comprising a cold water circulation coil 36, immersed in the upper tank 29.
  • a temperature probe (not shown) in thermal contact with the exchanger ordered the circulation of cold water in the coil when the water from the heat exchanger threatens to boil.

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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)
  • Solid-Fuel Combustion (AREA)

Abstract

1. A solid fuel boiler, more especially for wood, charcoal and/or coal, of the type comprising a combustion chamber (11), a smoke outlet pipe (12) and a heat exchanger (16) in thermal contact with said combustion chamber and in which a heat carrying fluid such as water may flow for heating, characterized in that said combustion chamber is defined essentially by a composite wall (19) comprising a blanket of refractory bricks (20) simply stacked on each other, consolidated by a holding system (21) comprising more especially an external metal casing (21), preferably removable, and a plurality of internal metal plates (21b) disposed vertically at intervals between parts of said blanket.

Description

L'invention concerne une chaudière à combustible solide, notamment pour le bois, le charbon de bois ou le charbon, dont la conception permet d'atteindre une température de fonctionnement suffisamment élevée pour que la combustion de ce genre de combustible soit aussi complète que possible pour éviter le goudronnage ou le bistrage des éléments de la chaudière et des conduits de cheminée.The invention relates to a solid fuel boiler, in particular for wood, charcoal or charcoal, the design of which enables a sufficiently high operating temperature to be achieved so that the combustion of this type of fuel is as complete as possible. to avoid tarring or bistrage of boiler elements and chimney flues.

Le prix des produits pétroliers ne cessant d'augmenter, on assiste à un regain d'intérêt, notamment en milieu rural, pour des combustibles de chauffage délaissés pendant de nombreuses années, à savoir les combustibles solides mentionnés plus haut. Cependant, les notions de confort ont sensiblement évolué depuis l'époque où ces combustibles étaient utilisés couramment, de sorte qu'on se trouve amené à mettre au point des chaudières, notamment pour le chauffage central, de puissance relativement élevée, propres à assurer le chauffage de locaux parfois importants. Il faut donc prévoir un foyer relativement vaste pouvant recevoir une quantité importante de.combustible, pour garantir une autonomie suffisante et un échangeur de chaleur efficace, propre à garantir un rendement calorifique convenable de l'ensemble de l'installation. Des essais récents ont révélé le problème des quantités relativement importantes de goudrons dégagés par de tels combustibles. Les conséquences de cette formation de goudrons sur le bon fonctionnement de la chaudière sont : l'encrassement et l'obturation rapide des conduits, la pollution et la corrosion des tuyaux d'évacuation des fumées.As the price of petroleum products continues to increase, there is a renewed interest, particularly in rural areas, for heating fuels which have been neglected for many years, namely the solid fuels mentioned above. However, the concepts of comfort have evolved significantly since the time when these fuels were commonly used, so that we are led to develop boilers, especially for central heating, of relatively high power, capable of ensuring the sometimes important premises heating. It is therefore necessary to provide a relatively large hearth which can receive a large quantity of fuel, to guarantee sufficient autonomy and an efficient heat exchanger, capable of guaranteeing a suitable calorific efficiency of the entire installation. Recent tests have revealed the problem of the relatively large quantities of tar released by such fuels. The consequences of this tar formation on the proper functioning of the boiler are: fouling and rapid sealing of the pipes, pollution and corrosion of the smoke evacuation pipes.

L'invention a pour but de résoudre tous ces inconvénients, principalement en proposant une structure de chaudière permettant d'augmenter sensiblement la température du foyer, ceci pour réduire la formation des goudrons ou des suies grasses et pour éliminer la condensation.The object of the invention is to resolve all these drawbacks, mainly by proposing a boiler structure making it possible to increase the temperature of the hearth appreciably, this in order to reduce the formation of tar or fatty soot and to eliminate condensation.

Dans cet esprit, l'invention concerne principalement une chaudière à combustible solide, notamment pour bois, charbon de bois et/ou charbon, du type comportant une chambre de combustion, une buse d'évacuation des fumées et un échangeur de chaleur en contact thermique avec ladite chambre de combustion et dans lequel un fluide caloporteur tel que l'eau est susceptible de circuler pour être réchauffé, caractérisée en ce que ladite chambre de combustion est délimitée essentiellement par une paroi composite comportant un matelassage de briques réfractaires simplement empilées les unes sur les autres et consolidé par un système de maintien comportant notamment une enveloppe externe métallique, de préférence démontable.In this spirit, the invention mainly relates to a solid fuel boiler, in particular for wood, charcoal and / or coal, of the type comprising a combustion chamber, a smoke evacuation nozzle and a heat exchanger in thermal contact. with said combustion chamber and in which a heat transfer fluid such as water is capable of circulating in order to be heated, characterized in that said combustion chamber is essentially delimited by a composite wall comprising a quilting of refractory bricks simply stacked one on top of the other the others and consolidated by a support system comprising in particular a metallic external envelope, preferably removable.

Selon une autre caractéristique importante de l'invention, l'échangeur de chaleur comporte des tubes de circulation d'eau, insérés dans ladite paroi composite,entre les briques,et soudés à des tôles internes dudit système de maintien. Ceci facilite l'échange de chaleur entre le foyer et cette partie de l'échangeur, tout en évitant la déformation des tôles internes du système de maintien, puisque celles-ci sont refroidies en permanence par l'écoulement du fluide caloporteur.According to another important characteristic of the invention, the heat exchanger comprises water circulation tubes, inserted in said composite wall, between the bricks, and welded to internal sheets of said holding system. This facilitates the exchange of heat between the hearth and this part of the exchanger, while avoiding the deformation of the internal sheets of the holding system, since these are permanently cooled by the flow of the coolant.

L'invention sera mieux comprise et d'autres avantages de celle-ci apparaîtront mieux à la lumière de la description qui va suivre d'un mode de réalisation actuellement préféré d'une chaudière conforme au principe de l'invention, donnée uniquement à titre d'exemple et faite en référence aux dessins non limitatifs annexés, dans lesquels :

  • - la figure 1 est une élévation en coupe partielle de la chaudière; et
  • - la figure 2 est une vue de dessus en coupe partielle de cette même chaudière.
The invention will be better understood and other advantages thereof will appear better in the light of the following description of a currently preferred embodiment of a boiler conforming to the principle of the invention, given solely by way of example and made with reference to the accompanying non-limiting drawings, in which:
  • - Figure 1 is an elevation in partial section of the boiler; and
  • - Figure 2 is a top view in partial section of the same boiler.

La chaudière se compose essentiellement d'une chambre de combustion Il munie, à l'arrière, d'une buse d'évacuation des fumées 12 et, à l'avant, d'une porte supérieure 13, pour le chargement du combustible, ainsi que d'une porte inférieure 14, pour le nettoyage. Ces deux portes sont constituées, chacune, de deux plaques de tôle parallèles, assemblées à leur périphérie, entre lesquelles est insérée une épaisseur de laine de verre. La porte inférieure 14 comporte en outre un volet mobile 15 réglant le débit d'air comburant. Un échangeur de chaleur 16 est agencé tout autour de la chambre de combustion pour présenter un contact thermique optimal avec le foyer. Cet échangeur comporte un embout 17 pour le départ de l'eau chaude, à sa partie supérieure, et un embout 18 pour le retour de l'eau, à sa partie inférieure. Selon une caractéristique propre à l'invention, la chambre de combustion 11 est essentiellement délimitée par une paroi composite 19 comportant un matelassage de briques réfractaires 20, lesquelles briques sont empilées les unes sur les autres, principalement sur les deux faces latérales de la chambre de combustion et sur une partie de la hauteur de la face arrière. En outre, ce matelassage est consolidé par un système de maintien 21. comportant notamment une enveloppe externe 21a, en tôles, démontable. Ce système de maintien comporte aussi des tôles internes 21b, disposées verticalement de proche en proche entre des parties du matelassage de briques. Les tôles 21b sont soudées, chacune, à des tubes 25 de circulation d'eau de l'échangeur 16. Ainsi, la fonction de ces tôles internes est double. Elles participent au maintien du matelassage de briques, et elles favorisent l'échange de chaleur avec les tubes 25 de l'échangeur. En outre, leur refroidissement est assuré par l'eau circulant dans ces tubes, ce qui évite leur déformation, même lorsque la température du foyer est de l'ordre de 500°, ce qui est le but visé par l'invention.The boiler essentially consists of a combustion chamber II provided, at the rear, with a smoke evacuation nozzle 12 and, at the front, with an upper door 13, for loading the fuel, as well than a lower door 14, for cleaning. These two doors each consist of two parallel sheet metal plates, assembled at their periphery, between which a thickness of glass wool is inserted. The lower door 14 further comprises a movable flap 15 regulating the flow of combustion air. A heat exchanger 16 is arranged all around the combustion chamber to present optimal thermal contact with the hearth. This exchanger has a nozzle 17 for the departure of hot water, at its upper part, and a nozzle 18 for the return of water, at its lower part. According to a characteristic specific to the invention, the combustion chamber 11 is essentially delimited by a composite wall 19 comprising a quilting of refractory bricks 20, which bricks are stacked one on the other, mainly on the two lateral faces of the combustion chamber. combustion and over part of the height of the rear face. In addition, this quilting is consolidated by a holding system 21. comprising in particular an outer casing 21a, made of sheets, which can be dismantled. This holding system also includes internal sheets 21b, arranged vertically step by step between parts of the brick quilting. The sheets 21b are each welded to water circulation tubes 25 of the exchanger 16. Thus, the function of these internal sheets is twofold. They participate in maintaining the quilting of bricks, and they promote heat exchange with the tubes 25 of the exchanger. In addition, their cooling is ensured by the water circulating in these tubes, which prevents their deformation, even when the temperature of the hearth is of the order of 500 °, which is the aim of the invention.

L'enveloppe externe 21a est elle-même entourée d'une barrière d'isolation 26 comportant une certaine épaisseur de laine de verre ou analogue. D'autre part, les espaces interstitiels 27 entre les briques et les tubes 25 insérés dans la paroi composite sont comblés par du sable.The outer envelope 21a is itself surrounded by an insulation barrier 26 comprising a certain thickness of glass wool or the like. On the other hand, the interstitial spaces 27 between the bricks and the tubes 25 inserted in the composite wall are filled with sand.

On va maintenant décrire plus en détail la structure particulière de l'échangeur de chaleur 16. Cet échangeur est en forme de cage et comporte, en particulier, une partie horizontale inférieure formant grille 28 support de combustible. Cette grille est composée d'un cadre tubulaire 28a, rectangulaire, composé de tubes à section relativement forte et d'une pluralité de tubes parallèles 28b, de section plus faible, reliés au cadre 28a. Les tubes 25 insérés dans la paroi composite 19 sont agencés verticalement et connectés entre le cadre 28a et un réservoir horizontal 29, supérieur, surmontant la chambre de combustion II. En outre, un passage laminaire arrière 30 s'étend le long de sensiblement toute la face arrière de la chambre de combustion II. Il établit une connection entre le cadre 28a et le réservoir horizontal 29. Ce passage arrière est protégé jusqu'à une certaine hauteur par une partie du matelassage de briques.We will now describe in more detail the particular structure of the heat exchanger 16. This exchanger is in the form of a cage and comprises, in particular, a lower horizontal part forming a grid 28 for supporting the fuel. This grid is composed of a tubular frame 28a, rectangular, composed of relatively large section tubes and a plurality of parallel tubes 28b, of smaller section, connected to the frame 28a. The tubes 25 inserted in the composite wall 19 are arranged vertically and connected between the frame 28a and a horizontal tank 29, upper, surmounting the combustion chamber II. In addition, a rear laminar passage 30 extends along substantially the entire rear face of the combustion chamber II. It establishes a connection between the frame 28a and the horizontal tank 29. This rear passage is protected up to a certain height by a part of the brick quilting.

En outre, un moyen d'assèchement des fumées est disposé dans la chambre de combustion, au voisinage de la buse d'évacuation 12. Il s'agit d'un système de chicanes 34 en tôles, faisant saillie à l'intérieur de la chambre de combustion et s'étendant dans le prolongement de l'orifice interne 12a de la buse d'évacuation 12. Dans l'exemple représenté, le système de chicanes est constitué d'un empilement de tôles planes, parallèles, s'étendant sur toute la largeur de la chambre de combustion 11, en avant de l'orifice interne 12a. De cette façon, les fumées sont obligées de circuler dans ce système de chicanes surchauffé, avant d'être évacuées de la chambre de combustion.In addition, a means for drying the fumes is disposed in the combustion chamber, in the vicinity of the exhaust nozzle 12. It is a system of baffles 34 made of sheet metal, projecting inside the combustion chamber and extending in the extension of the internal orifice 12a of the exhaust nozzle 12. In the example shown, the baffle system consists of a stack of flat, parallel sheets, extending over the entire width of the combustion chamber 11, in front of the internal orifice 12a. In this way, the fumes are forced to circulate in this system of overheated baffles, before being evacuated from the combustion chamber.

Enfin, on notera la présence d'un système de sécurité anti-ébullition, comportant principalement un serpentin de circulation d'eau froide 36, immergé dans le réservoir supérieur 29. Une sonde de température (non représentée) en contact thermique avec l'échangeur commande la circulation de l'eau froide dans le serpentin lorsque l'eau de l'échangeur de température menace d'entrer en ébullition.Finally, note the presence of an anti-boiling safety system, mainly comprising a cold water circulation coil 36, immersed in the upper tank 29. A temperature probe (not shown) in thermal contact with the exchanger ordered the circulation of cold water in the coil when the water from the heat exchanger threatens to boil.

Les avantages mentionnés plus haut de la chaudière qui vient d'être décrite résultent avec évidence de sa structure. Le matelassage de briques réfractaires permet d'atteindre une température de fonctionnement très supérieure à celles qui sont habituelles dans les chaudières utilisées jusqu'à présent. La combustion est donc presque complète, ce qui évite la formation des goudrons. En outre, le dessèchement des fumées avant leur évacuation au-delà de la buse 12 évite l'encrassement et la corrosion des tuyaux.The advantages mentioned above of the boiler which has just been described are evident from its structure. The quilting of refractory bricks makes it possible to reach an operating temperature much higher than those usual in boilers used until now. The combustion is therefore almost complete, which avoids the formation of tar. In addition, the drying of the fumes before their evacuation beyond the nozzle 12 prevents fouling and corrosion of the pipes.

Bien entendu, l'invention n'est pas limitée au mode de réalisation qui vient d'être décrit, mais elle comprend tous les équivalents techniques des moyens mis en jeu si ceux-ci le sont dans le cadre des revendications qui suivent.Of course, the invention is not limited to the embodiment which has just been described, but it includes all the technical equivalents of the means involved if these are in the context of the claims which follow.

Claims (10)

1. Chaudière à combustible solide, notamment pour bois, charbon de bois et/ou charbon, du type comportant une chambre de combustion (11), une buse d'évacuation des fumées (12) et un échangeur de chaleur (16) en contact thermique avec ladite chambre de combustion et dans lequel un fluide caloporteur tel que l'eau est susceptible de circuler pour être réchauffé, caractérisée en ce que ladite chambre de combustion est délimitée essentiellement par une paroi composite (19) comportant un matelassage de briques réfractaires (20) simplement empilées les unes sur les autres, consolidée par un système de maintien (21) comportant notamment une enveloppe externe (21a), métallique, de préférence démontable, et une pluralité de tôles internes (21b) agencées verticalement de proche en proche entre des parties dudit matelassage.1. Solid fuel boiler, in particular for wood, charcoal and / or charcoal, of the type comprising a combustion chamber (11), a smoke evacuation nozzle (12) and a heat exchanger (16) in contact thermal with said combustion chamber and in which a heat transfer fluid such as water is capable of circulating in order to be heated, characterized in that said combustion chamber is essentially delimited by a composite wall (19) comprising a lining of refractory bricks ( 20) simply stacked one on top of the other, consolidated by a holding system (21) comprising in particular an external envelope (21a), metallic, preferably removable, and a plurality of internal sheets (21b) arranged vertically gradually between parts of said padding. 2. Chaudière selon la revendication 1, caractérisée en ce que ledit échangeur de chaleur (16) comporte des tubes (25) insérés dans ladite paroi composite entre les briques et soudés respectivement auxdites tôles internes (21b) dudit système de maintien, pour faciliter l'échange de chaleur et éviter la déformation desdites tôles.2. Boiler according to claim 1, characterized in that said heat exchanger (16) comprises tubes (25) inserted in said composite wall between the bricks and welded respectively to said internal sheets (21b) of said holding system, to facilitate the 'heat exchange and avoid deformation of said sheets. 3. Chaudière selon la revendication 1 ou 2,caractérisée en ce que ladite enveloppe externe est elle-même entourée d'une barrière d'isolation (26)comportant une certaine épaisseur de laine de verre ou analogue.3. Boiler according to claim 1 or 2, characterized in that said outer envelope is itself surrounded by an insulation barrier (26) having a certain thickness of glass wool or the like. 4. Chaudière selon l'une des revendications 2 ou 3, caractérisée en ce que les espaces interstitiels (27) entre lesdites briques et les tubes insérés dans ladite paroi composite sont comblés par du sable.4. Boiler according to one of claims 2 or 3, characterized in that the interstitial spaces (27) between said bricks and the tubes inserted in said composite wall are filled with sand. 5. Chaudière selon l'une des revendications 2 à 4, caractérisée en ce que ledit échangeur de chaleur a une structure en forme de cage et comporte en particulier une partie horizontale inférieure formant grille (28) support de combustible,composée d'un cadre tubulaire (28a) de relativement forte section et d'une pluralité de tubes parallèles (28b) de section plus faible, reliés audit cadre,les tubes précités (25) insérés dans ladite paroi composite étant agencés verticalement et connectés entre ledit cadre et un réservoir horizontal supérieur (29) surmontant ladite chambre de combustion.5. Boiler according to one of claims 2 to 4, characterized in that said heat exchanger has a cage-like structure and in particular comprises a lower horizontal part forming a grid (28) fuel support, composed of a frame tubular (28a) of relatively large section and a plurality of parallel tubes (28b) of smaller section, connected to said frame, the aforementioned tubes (25) inserted in said composite wall being arranged vertically and connected between said frame and a reservoir upper horizontal (29) surmounting said combustion chamber. 6. Chaudière selon la revendication 5,caractérisée en ce que lesdits tubes (25) insérés dans ladite paroi composite s'étendent essentiellement le long de deux faces latérales parallèles de ladite chambre de combustion et qu'un passage laminaire arrière (30) dudit échangeur, s'étendant le long de sensiblement toute la face arrière de ladite chambre de combustion, établit une connexion entre ledit cadre (28a) et ledit réservoir horizontal (29), ce passage arrière étant protégé jusqu'à une certaine hauteur par une partie dudit matelassage de briques.6. Boiler according to claim 5, characterized in that said tubes (25) inserted in said composite wall extend essentially along two parallel lateral faces of said combustion chamber and that a rear laminar passage (30) of said exchanger , extending along substantially the entire rear face of said combustion chamber, establishes a connection between said frame (28a) and said horizontal tank (29), this rear passage being protected up to a certain height by a part of said brick quilting. 7. Chaudière selon l'une des revendications précédentes, caractérisée en ce qu'elle comporte un moyen d'assèchement des fumées, disposé au voisinage de la buse d'évacuation (12) précitée.7. Boiler according to one of the preceding claims, characterized in that it comprises a means for drying the smoke, disposed in the vicinity of the discharge nozzle (12) above. 8. Chaudière selon la revendication 7, caractérisée en ce que ledit moyen d'assèchement est constitué par un système de chicanes (34) en tôles, faisant saillie à l'intérieur de ladite chambre de combustion, s'étendant dans le prolongement de l'orifice interne (12a) de ladite buse d'évacuation (12), de sorte que les fumées doivent circuler dans ledit système de chicanes surchauffé avant d'être évacuées de la chambre de combustion.8. Boiler according to claim 7, characterized in that said dewatering means is constituted by a system of baffles (34) made of sheets, projecting inside said combustion chamber, extending in the extension of l internal hole (12a) of said exhaust nozzle (12), so that the fumes must circulate in said system of baffles overheated before being evacuated from the combustion chamber. 9. Chaudière selon la revendication 8, caractérisée en ce que ledit système de chicanes est constitué d'un empilement de tôles planes, parallèles, s'étendant sur toute la largeur de la chambre de combustion en avant dudit orifice interne (12a) de ladite buse.9. Boiler according to claim 8, characterized in that said baffle system consists of a stack of flat, parallel sheets, extending over the entire width of the combustion chamber in front of said internal orifice (12a) of said nozzle. 10. Chaudière selon l'une des revendications précédentes, caractérisée en ce que ledit échangeur est équipé d'un système de sécurité anti-ébullition, comportant un serpentin (36) de circulation d'eau froide, immergé dans ledit échangeur, ainsi qu'une sonde de température en contact thermique avec celui-ci, pour commander la circulation de l'eau froide dans ledit serpentin.10. Boiler according to one of the preceding claims, characterized in that said exchanger is equipped with an anti-boiling safety system, comprising a coil (36) for circulating cold water, immersed in said exchanger, as well as a temperature probe in thermal contact therewith, for controlling the circulation of cold water in said coil.
EP19820400563 1981-04-07 1982-03-29 Heater for combustible solids Expired EP0062573B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8106970A FR2503331B1 (en) 1981-04-07 1981-04-07 SOLID FUEL BOILER
FR8106970 1981-04-07

Publications (2)

Publication Number Publication Date
EP0062573A1 true EP0062573A1 (en) 1982-10-13
EP0062573B1 EP0062573B1 (en) 1985-06-05

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EP19820400563 Expired EP0062573B1 (en) 1981-04-07 1982-03-29 Heater for combustible solids

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EP (1) EP0062573B1 (en)
DE (1) DE3264010D1 (en)
FR (1) FR2503331B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2583858A1 (en) * 1985-06-20 1986-12-26 Peyrot Pierre High-efficiency solid fuel boiler
ITCZ20090027A1 (en) * 2009-11-25 2010-02-24 Ungaro Srl PELLET STOVE

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105114930A (en) * 2015-09-17 2015-12-02 哈尔滨市金京锅炉有限公司 Efficient combustion boiler

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1224951A (en) * 1959-02-09 1960-06-28 Vertical grid central heating boiler for all fuels
GB888711A (en) * 1959-12-02 1962-02-07 Josef Fendel Improvements in or relating to boilers
CH419520A (en) * 1964-04-13 1966-08-31 Widmer Walter Boiler
FR2348448A2 (en) * 1976-04-13 1977-11-10 Landreau Andre Dual fuel central heating boiler - has rectangular nest of water tubes buried in refractory combustion chamber walls
US4154210A (en) * 1977-08-24 1979-05-15 Jaymes John B Wood fired furnace
GB2049125A (en) * 1980-02-22 1980-12-17 Mid Ulster Eng Ltd Double-shelled oil-fired boilers

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1224951A (en) * 1959-02-09 1960-06-28 Vertical grid central heating boiler for all fuels
GB888711A (en) * 1959-12-02 1962-02-07 Josef Fendel Improvements in or relating to boilers
CH419520A (en) * 1964-04-13 1966-08-31 Widmer Walter Boiler
FR2348448A2 (en) * 1976-04-13 1977-11-10 Landreau Andre Dual fuel central heating boiler - has rectangular nest of water tubes buried in refractory combustion chamber walls
US4154210A (en) * 1977-08-24 1979-05-15 Jaymes John B Wood fired furnace
GB2049125A (en) * 1980-02-22 1980-12-17 Mid Ulster Eng Ltd Double-shelled oil-fired boilers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2583858A1 (en) * 1985-06-20 1986-12-26 Peyrot Pierre High-efficiency solid fuel boiler
ITCZ20090027A1 (en) * 2009-11-25 2010-02-24 Ungaro Srl PELLET STOVE

Also Published As

Publication number Publication date
EP0062573B1 (en) 1985-06-05
DE3264010D1 (en) 1985-07-11
FR2503331B1 (en) 1986-01-24
FR2503331A1 (en) 1982-10-08

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