EP1098147A1 - Vertical heating boiler - Google Patents

Vertical heating boiler Download PDF

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Publication number
EP1098147A1
EP1098147A1 EP00420226A EP00420226A EP1098147A1 EP 1098147 A1 EP1098147 A1 EP 1098147A1 EP 00420226 A EP00420226 A EP 00420226A EP 00420226 A EP00420226 A EP 00420226A EP 1098147 A1 EP1098147 A1 EP 1098147A1
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EP
European Patent Office
Prior art keywords
hearth
gas
transfer fluid
circuit
heat transfer
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.)
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Application number
EP00420226A
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German (de)
French (fr)
Inventor
Franck Perge
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.)
PERGE Ets SA
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PERGE Ets SA
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Filing date
Publication date
Application filed by PERGE Ets SA filed Critical PERGE Ets SA
Publication of EP1098147A1 publication Critical patent/EP1098147A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/34—Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air
    • 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
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
    • F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2213/00—Chimneys or flues
    • F23J2213/10—Linings
    • F23J2213/101—Fastening means therefor

Definitions

  • the present invention relates to heating boilers operating at from a given energy, such as gas or fuel oil, and intended to ensure the temperature rise of a heat transfer fluid which can be used for various purposes and, more specifically, in a space heating installation and, possibly, for heating domestic hot water.
  • a given energy such as gas or fuel oil
  • the object of the invention relates, more particularly, to the field of vertical type heating boilers.
  • a boiler vertical type of heating generally includes a hearth closed by a plate hearth and delimiting, by its internal volume, a circuit for the circulation of gases and smoke produced by a burner, for example of the oil or gas type.
  • Boiler also includes a heat exchanger between the gas circulation circuit and smoke and a circulation circuit of a heat transfer fluid, such as water.
  • the heat exchanger generally consists of a series of exchange units each comprising, on the one hand, a gas and smoke tube extending vertically and communicating, in its lower part, with the hearth and, on the other hand, an envelope of exchange delimiting with the gas and smoke tube, an exchange capacity for the coolant.
  • the burner ensures combustion in the hearth, so that gases and fumes are forced to rise inside the evacuation tubes before being collected in a manifold.
  • the heat transfer fluid undergoes a rise in temperature and rises to be collected in a mixing chamber equipped with pipes connecting to at least one circuit use of the heat transfer fluid.
  • a heating boiler of the type described above has a major drawback due to poor combustion efficiency and exchange unsatisfactory temperature between the combustion chamber and the heat transfer fluid.
  • Another drawback of this type of boiler is the relatively high noise level which it present.
  • the object of the invention is to remedy the drawbacks stated above in offering a new heating boiler for a heat transfer fluid allowing obtaining a good transformation efficiency of the energy used.
  • Another object of the invention is to provide a heating boiler relatively silent and designed to operate from gas or oil energy.
  • a further object of the invention is to provide a heating boiler designed to have a limited size.
  • Another object of the invention is to provide a heating boiler designed to prevent the proliferation of bacteria in the circulation circuit of the heat transfer fluid.
  • the heating boiler is equipped with a mixing chamber having a bottom near which the connection pipe (s) for the return heat transfer fluid are mounted, the bottom having, on the one hand, calibrated orifices to communicate with the heat transfer fluid coming from the perimeter strip and, on the other hand, an external face in contact with the heat transfer fluid coming from the blade perimeter.
  • Fig. 1 is a sectional elevation of an exemplary embodiment of a boiler according to the invention of the fuel oil type.
  • Fig. 2 is a cross-sectional view taken substantially along the lines II-II of FIG. 1.
  • Fig. 3 is a view of a characteristic detail of the heating boiler according to the invention.
  • Figs. 4 and 5 are cross-sectional views taken respectively along lines IV-IV and VV of FIG. 1.
  • Fig. 6 is a sectional elevation of a heating boiler according to the invention, of the gas type.
  • Figs. 1 and 2 illustrate a heating boiler according to the invention operating with energy of the fuel oil type.
  • the heating boiler comprises an enclosure 1 retaining, in a conventional manner, a refractory or insulating coating, not shown.
  • the enclosure 1 defines, by its top, an access opening 2 which is closed by a hearth plate 3 intended to cooperate with a peripheral seal 4 .
  • the internal volume delimited by the enclosure 1 is partly occupied by a hearth 5 constituted by an envelope 6 having a circular cross section and closed by a slightly curved bottom 6a extending opposite the access opening 2.
  • the envelope 6 delimits, between the hearth 5 and the access opening 2, a chamber 7 for collecting gases and fumes whose function will appear more precisely in the following description.
  • the envelope 6 thus internally delimits a volume V 1 accessible by the hearth plate 3 .
  • the lower part of the internal volume V 1 contains a heat exchanger constituted by at least one and, in general, several exchange units 10 , for example eight in number, in the example illustrated, distributed regularly according to a circumference located at the periphery of the envelope 6 , in order to leave free the central part 5a of the hearth.
  • Each exchange unit 10 comprises a gas and smoke tube 12 extending vertically over substantially the entire height of the hearth 5 , opening, on one side, near the bottom 6a and, on the other side, in chamber 7 for collecting gases and fumes.
  • each gas and smoke tube 12 has a circular cross section.
  • Each exchange unit 10 also includes an exchange envelope 13 surrounding the tube 12 at a distance over its major part to delimit a lamellar capacity C 1 for a heat transfer fluid.
  • Each exchange envelope 13 is closed on the lower part of the associated tube 12 and is fixed to a transverse wall 14 connecting to the envelope 6 .
  • the lamellar capacities C 1 of the exchange units 10 are intended to form part of a circuit 16 for circulation of a heat transfer fluid.
  • the lamellar capacities C 1 open out through communication passages 17 made at the top of the tubes 12 , in a mixing chamber 18 delimited in part by the casing 6 and by a peripheral box 19 surrounding the hearth 5 at its part upper and the gas and smoke collection chamber 7 at its lower part.
  • the box 19 which delimits an internal volume C 2 , is extended by an annular plate 21 on which the gas and smoke tubes are fixed 12.
  • the annular plate 21 extends at a distance from the transverse wall 14 which is connected to the plate 21 at their extreme edges, so as to leave an opening 22 between the chamber 7 and the hearth 5 .
  • the box 19 is equipped with pipes connecting to at least one circuit for using the heat transfer fluid.
  • the box 19 is equipped, at its upper part, with an outlet pipe 23a and, at its lower part, with a return pipe 23b .
  • the mixing chamber 18 communicates, at its lower part, with a perimeter blade C 3 delimited between the lower part of the casing 6 and an external cap 24 .
  • This cap 24 extends at a distance from the envelope 6 to delimit with it a perimeter strip or a capacity C 3 of narrow width that is substantially constant. It must be considered that the perimeter plate C 3 , the mixing chamber 18 of capacity C 2 and the lamellar capacities C 1 of the exchange units, thus represent the circuit 16 for circulation of a heat-transfer fluid which can be removed and brought back by connecting pipes 23a , 23b .
  • the mixing chamber 18 communicates with the perimeter blade C 3 via a series of calibrated orifices 26 arranged regularly in a bottom 27 of the mixing chamber, formed for example by a return of the 'envelope 6 .
  • the number and the section of passage of the calibrated orifices 26 are chosen to make it possible to determine the passage of the heat transfer fluid from the perimeter strip C 3 to the mixing chamber 18 .
  • the bottom 27 of the mixing chamber 18 thus has an external face 27a which is in contact with the heat transfer fluid coming from the perimeter blade C 3 .
  • the cap 24 is extended by a flange 29 extending away from the bottom 27 to allow the entire external face 27a of the bottom to be in contact with the heat transfer fluid coming from the perimeter strip C 3 .
  • Such an arrangement offers the advantage that the bottom 27 of the mixing chamber 18 into which the return of the installation 23b opens, has a sufficient hot temperature, in order to avoid forming a cold zone or a stagnation of a fluid. coolant at a temperature favoring the proliferation of bacteria.
  • the gas and smoke collection chamber 7 is closed by the hearth plate 3 comprising a socket 31 for the combustion air communicating with a circulation circuit 32 for the combustion air.
  • the air circulation circuit 32 is arranged in the hearth plate 3 , so as to ensure the flow of air along a determined path represented by the arrows f.
  • the combustion air enters through the air intake 31 , inside the hearth plate 3 and is recovered by a passage 33 opening into a housing or a volute 34 arranged in the hearth plate 3 .
  • the volute 34 is intended to be occupied in part by a turbine 35 driven in rotation by means of a motor 36 fixed on the external face of the hearth plate 3 .
  • the volute 34 has an outlet 37 opening into a burner 39 mounted in the central region of the chamber 7 for collecting gases and fumes.
  • the burner 39 which is of the oil type in the example illustrated, is surrounded by a thermal insulation sleeve 40 mounted on the annular plate 21 , thus allowing the burner 39 to open inside the hearth 5 , in its central part 5a , via the opening 22.
  • the burner 39 is associated with a pipe 43 for supplying the oil to a nozzle 44 located at the bottom of the burner 39 .
  • the supply pipe 43 crosses the hearth plate 3 via a passage 45 and is connected to a pump 48 fixed on the external face of said plate 3 .
  • the supply pipe 43 passes at least partially through the circuit 32 for circulation of combustion air, so as to allow the heating of the fuel oil by heat exchange between the fuel oil and the combustion air through the intermediate of the supply pipeline 43 .
  • the supply pipe 43 crosses the combustion air circulation circuit 32 transversely and comprises several turns shaped at the outlet 37 of the volute, so as to promote the temperature rise of the fuel oil. .
  • the hearth plate 3 has, on its internal face, a thermal insulation coating 50 intended to close the opening 2 for access to the hearth 5.
  • the hearth plate 3 also has a passage 52 for evacuating the gases and filmed communicating with the collection chamber 7 which collects the gases and fumes leaving the tubes 12 .
  • this collection chamber 7 also constitutes an expansion chamber for the gases and fumes leaving the tubes 12 .
  • the height of this collection chamber 7 is adapted to make it possible to reduce the noise of expansion of the gases and fumes.
  • the evacuation passage 52 is produced by a sleeve, for example bent, passing through the hearth plate 3 .
  • a sleeve 52 is mounted inside a bent sleeve forming the air intake 31 .
  • the concentric mounting of the air intake 31 and the gas and smoke evacuation sleeve 52 makes it possible to raise the temperature of the combustion air using the walls of the sleeve 52 constituting an exchange capacity with the combustion air.
  • the forced routing of the combustion air inside the hearth plate 3 also makes it possible to ensure the rise in the temperature of the combustion air due to the heat brought to the plate hearth 3 thanks to the collection chamber 7 .
  • the combustion air thus reheated advantageously serves to also reheat the fuel oil before its combustion. Raising the temperature of the combustion air and the fuel oil makes it possible to obtain a good combustion efficiency.
  • the burner 39 makes it possible to ensure combustion in the hearth 5 and to circulate the gases and fumes in the direction of the arrows f 1 .
  • the gases and fumes are forced to descend into the central part of the hearth 5 by licking the exchange envelopes 13 , then to rise inside the tubes 12 which also undergo a rise in temperature. These gases and fumes are then collected in the collection chamber 7 , with a view to being evacuated by the evacuation passage 52 .
  • the operation of the burner 39 leads to a sharp rise in temperature of the envelope 6 and of the exchange envelopes 13 , which is transmitted to the heat transfer fluid occupying the perimeter blade C 3 and the lamellar capacities C 2 of the exchange units.
  • These fluid capacities rise very quickly in temperature and rise vertically to penetrate into the mixing chamber 7 , at its lower part by the calibrated orifices 26 and, at its upper part, by the communication passages 17 .
  • Such a transfer of fluid causes a rapid rise in temperature of the heat transfer fluid contained in the mixing chamber 18 .
  • the heat exchanger consisting of the perimeter blade C 3 and the lamellar capacities C 2 , uses a limited volume of fluid making it possible to reduce the temperature rise time of the fluid.
  • a stove plate 3 which, by its nature, makes it possible to close the hearth 5 , offers the advantage of ensuring preheating of the combustion air, as well as of the fuel oil via the gases and smoke present in the collection chamber 7 and discharged through passage 52 .
  • This hearth plate 3 is mounted in any suitable manner on the upper end of the casing 6 .
  • Another advantage of the invention lies in the arrangement of the exchanger in the lower part of the hearth and of the burner in the upper part. In fact, this arrangement results in a more regular distribution over the exchange surfaces, of gases and films which follow an imposed movement making it possible to obtain a good return on the energy consumed.
  • the arrangement of the burner in the upper part of the hearth also makes it possible to eliminate the problems of absorption of dust, to favor its access and maintenance and to adapt another type of burner, for example of the gas type.
  • Fig. 6 illustrates an exemplary embodiment of a gas-type heating boiler.
  • the gas type heating boiler is constituted in the same way as the oil type heating boiler described in figs. 1 to 5 .
  • the references used for the oil-type heating boiler are kept.
  • the main modification concerns the burner 39 which is of the gas type and the gas supply pipe 43 which opens into the hearth plate at the outlet 37 of the volute 34 .
  • the gas is thus mixed with the air coming from the volute 34 in a mixing enclosure 39 'forming part of the burner 39 .
  • This gas supply pipe 43 is connected to a control valve 48 ′ fixed to the external face of the hearth plate 3 and making it possible to control the supply or shutdown of gas.
  • the expansion chamber 7 has a reduced height compared to the chamber 7 forming part of a heating boiler of the oil type.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Combustion Of Fluid Fuel (AREA)

Abstract

The boiler has a furnace (5) closed by a furnace plate (3) enclosing a circuit for the gases and fumes produced by a burner (39). It has a heat exchanger (10) between the gas and fume circuit and a circuit (16) for a heat transfer fluid, and the furnace plate has a passage (45) for a pipe (43) delivering fuel, such as oil or gas, to the burner. The boiler has a combustion air intake (31) leading to an inner circuit (32) with a cavity containing a turbine (35) and with its outlet (37) feeding the burner, and an outlet duct (52) linked to a gas and fume collection chamber (7) which is at least partially enclosed by the furnace plate and ensures pre-heating of the combustion air.

Description

La présente invention concerne les chaudières de chauffage fonctionnant à partir d'une énergie donnée, telle que le gaz ou le fioul, et destinées à assurer la montée en température d'un fluide caloporteur pouvant être utilisé à des fins diverses et, plus précisément, dans une installation de chauffage de locaux et, éventuellement, de chauffage d'une eau chaude sanitaire.The present invention relates to heating boilers operating at from a given energy, such as gas or fuel oil, and intended to ensure the temperature rise of a heat transfer fluid which can be used for various purposes and, more specifically, in a space heating installation and, possibly, for heating domestic hot water.

L'objet de l'invention concerne, plus particulièrement, le domaine des chaudières de chauffage de type vertical.The object of the invention relates, more particularly, to the field of vertical type heating boilers.

Pour assumer la fonction de chauffage d'un fluide caloporteur, une chaudière de chauffage de type vertical, comporte généralement un foyer fermé par une plaque foyère et délimitant, par son volume interne, un circuit pour la circulation des gaz et fumée produits par un brûleur, par exemple du type fioul ou gaz. La chaudière comporte également, un échangeur de chaleur entre le circuit de circulation des gaz et fumées et un circuit de circulation d'un fluide caloporteur, tel que de l'eau. L'échangeur de chaleur est constitué, en général, par une série d'unités d'échange comprenant chacune, d'une part, un tube de gaz et fumées s'étendant verticalement et communiquant, à sa partie basse, avec le foyer et, d'autre part, une enveloppe d'échange délimitant avec le tube de gaz et fumées, une capacité d'échange pour le fluide caloporteur.To assume the heating function of a heat transfer fluid, a boiler vertical type of heating, generally includes a hearth closed by a plate hearth and delimiting, by its internal volume, a circuit for the circulation of gases and smoke produced by a burner, for example of the oil or gas type. Boiler also includes a heat exchanger between the gas circulation circuit and smoke and a circulation circuit of a heat transfer fluid, such as water. The heat exchanger generally consists of a series of exchange units each comprising, on the one hand, a gas and smoke tube extending vertically and communicating, in its lower part, with the hearth and, on the other hand, an envelope of exchange delimiting with the gas and smoke tube, an exchange capacity for the coolant.

Le brûleur assure la combustion dans le foyer, de sorte que les gaz et fumées sont astreints à s'élever à l'intérieur des tubes d'évacuation avant d'être recueillis dans une boíte collectrice. Lors du fonctionnement du brûleur, il doit être considéré que le fluide caloporteur subit une montée en température et s'élève pour être recueilli dans une chambre de mélange équipée de tubulures de raccordement à au moins un circuit d'utilisation du fluide caloporteur.The burner ensures combustion in the hearth, so that gases and fumes are forced to rise inside the evacuation tubes before being collected in a manifold. When operating the burner, it must be considered that the heat transfer fluid undergoes a rise in temperature and rises to be collected in a mixing chamber equipped with pipes connecting to at least one circuit use of the heat transfer fluid.

Une chaudière de chauffage du type décrit ci-dessus, présente un inconvénient majeur tenant au mauvais rendement de combustion et à un échange thermique insatisfaisant entre le foyer de combustion et le fluide caloporteur. Un autre inconvénient de ce type de chaudière est le niveau sonore relativement élevé qu'elle présente. A heating boiler of the type described above has a major drawback due to poor combustion efficiency and exchange unsatisfactory temperature between the combustion chamber and the heat transfer fluid. Another drawback of this type of boiler is the relatively high noise level which it present.

L'objet de l'invention vise à remédier aux inconvénients énoncés ci-dessus en proposant une nouvelle chaudière de chauffage d'un fluide caloporteur permettant l'obtention d'un bon rendement de transformation de l'énergie utilisée.The object of the invention is to remedy the drawbacks stated above in offering a new heating boiler for a heat transfer fluid allowing obtaining a good transformation efficiency of the energy used.

Un autre objet de l'invention est de proposer une chaudière de chauffage relativement silencieuse et conçue pour fonctionner à partir d'une énergie gaz ou fioul.Another object of the invention is to provide a heating boiler relatively silent and designed to operate from gas or oil energy.

Un objet encore de l'invention est de proposer une chaudière de chauffage conçue pour présenter un encombrement limité.A further object of the invention is to provide a heating boiler designed to have a limited size.

Pour atteindre de tels objectifs, la chaudière de chauffage d'un fluide caloporteur comporte :

  • un foyer fermé par une plaque foyère et délimitant par son volume interne, un circuit de circulation des gaz et fumées produits par un brûleur,
  • et un échangeur de chaleur entre le circuit de circulation des gaz et fumées et un circuit de circulation du fluide caloporteur, l'échangeur de chaleur étant constitué par n unités d'échange comprenant chacune, d'une part, un tube de gaz et fumées s'étendant verticalement en communiquant, à sa partie basse, avec le foyer et, d'autre part, une enveloppe d'échange délimitant avec le tube, une capacité d'échange lamellaire de fluide.
To achieve such objectives, the heating boiler for a heat transfer fluid comprises:
  • a hearth closed by a hearth plate and delimiting by its internal volume, a circuit for the circulation of gases and fumes produced by a burner,
  • and a heat exchanger between the gas and smoke circulation circuit and a heat transfer fluid circulation circuit, the heat exchanger being constituted by n exchange units each comprising, on the one hand, a gas and smoke tube extending vertically by communicating, in its lower part, with the hearth and, on the other hand, an exchange envelope delimiting with the tube, a lamellar fluid exchange capacity.

Selon l'invention, la plaque foyère :

  • comporte un passage pour une canalisation d'amenée d'un combustible jusqu'au brûleur,
  • comporte une prise pour l'air de combustion,
  • délimite intérieurement un circuit de circulation pour l'air de combustion communiquant avec la prise d'air et débouchant dans un logement pour une turbine dont la sortie communique avec le brûleur,
  • et comporte un passage d'évacuation pour les gaz et fumées, raccordé à une chambre de collecte des gaz et fumées sortant de la partie haute des tubes de gaz et fumées, cette chambre de collecte étant fermée au moins en partie, par la plaque foyère, en vue d'assurer le préchauffage de l'air de combustion.
According to the invention, the hearth plate:
  • includes a passage for a fuel supply line to the burner,
  • has a combustion air intake,
  • internally defines a circulation circuit for the combustion air communicating with the air intake and opening into a housing for a turbine the outlet of which communicates with the burner,
  • and comprises an evacuation passage for gases and fumes, connected to a gas and smoke collection chamber leaving the upper part of the gas and smoke tubes, this collection chamber being closed at least in part by the hearth plate , to ensure preheating of the combustion air.

Un autre objet de l'invention est de proposer une chaudière de chauffage conçue pour éviter la prolifération des bactéries dans le circuit de circulation du fluide caloporteur. Another object of the invention is to provide a heating boiler designed to prevent the proliferation of bacteria in the circulation circuit of the heat transfer fluid.

A cet effet, la chaudière de chauffage est équipée d'une chambre de mélange comportant un fond à proximité duquel la ou les tubulures de raccordement pour le retour du fluide caloporteur sont montées, le fond présentant, d'une part, des orifices calibrés pour communiquer avec le fluide caloporteur provenant de la lame périmétrique et, d'autre part, une face externe en contact avec le fluide caloporteur provenant de la lame périmétrique.For this purpose, the heating boiler is equipped with a mixing chamber having a bottom near which the connection pipe (s) for the return heat transfer fluid are mounted, the bottom having, on the one hand, calibrated orifices to communicate with the heat transfer fluid coming from the perimeter strip and, on the other hand, an external face in contact with the heat transfer fluid coming from the blade perimeter.

Diverses autres caractéristiques ressortent de la description faite ci-dessous en référence aux dessins annexés qui montrent, à titre d'exemples non limitatifs, des formes de réalisation et de mise en oeuvre de l'objet de l'invention.Various other characteristics will emerge from the description given below in reference to the accompanying drawings which show, by way of nonlimiting examples, forms of realization and implementation of the object of the invention.

La fig. 1 est une coupe-élévation d'un exemple de réalisation d'une chaudière conforme à l'invention du type fioul. Fig. 1 is a sectional elevation of an exemplary embodiment of a boiler according to the invention of the fuel oil type.

La fig. 2 est une vue en coupe transversale prise sensiblement selon les lignes II-II de la fig. 1. Fig. 2 is a cross-sectional view taken substantially along the lines II-II of FIG. 1.

La fig. 3 est une vue d'un détail caractéristique de la chaudière de chauffage conforme à l'invention. Fig. 3 is a view of a characteristic detail of the heating boiler according to the invention.

Les fig. 4 et 5 sont des vues en coupe transversale prises respectivement selon les lignes IV-IV et V-V de la fig. 1. Figs. 4 and 5 are cross-sectional views taken respectively along lines IV-IV and VV of FIG. 1.

La fig. 6 est une coupe-élévation d'une chaudière de chauffage conforme à l'invention, du type gaz. Fig. 6 is a sectional elevation of a heating boiler according to the invention, of the gas type.

Les fig. 1 et 2 illustrent une chaudière de chauffage conforme à l'invention fonctionnant avec une énergie du type fioul. Selon cet exemple de réalisation, la chaudière de chauffage comporte une enceinte 1 retenant, de manière classique, un revêtement réfractaire ou isolant non représenté. L'enceinte 1 délimite, par son dessus, une ouverture d'accès 2 qui est fermée par une plaque foyère 3 destinée à coopérer avec un joint périphérique d'étanchéité 4. Le volume interne délimité par l'enceinte 1 est en partie occupé par un foyer 5 constitué par une enveloppe 6 présentant une section droite transversale circulaire et fermée par un fond 6a légèrement bombé s'étendant à l'opposé de l'ouverture d'accès 2. L'enveloppe 6 délimite, entre le foyer 5 et l'ouverture d'accès 2, une chambre 7 de collecte des gaz et fumées dont la fonction apparaítra plus précisément dans la suite de la description. L'enveloppe 6 délimite ainsi intérieurement un volume V1 accessible par la plaque foyère 3. La partie inférieure du volume interne V1 contient un échangeur de chaleur constitué par au moins une et, d'une manière générale, plusieurs unités d'échange 10, par exemple au nombre de huit, dans l'exemple illustré, réparties régulièrement selon une circonférence située à la périphérie de l'enveloppe 6, en vue de laisser libre la partie centrale 5a du foyer. Figs. 1 and 2 illustrate a heating boiler according to the invention operating with energy of the fuel oil type. According to this exemplary embodiment, the heating boiler comprises an enclosure 1 retaining, in a conventional manner, a refractory or insulating coating, not shown. The enclosure 1 defines, by its top, an access opening 2 which is closed by a hearth plate 3 intended to cooperate with a peripheral seal 4 . The internal volume delimited by the enclosure 1 is partly occupied by a hearth 5 constituted by an envelope 6 having a circular cross section and closed by a slightly curved bottom 6a extending opposite the access opening 2. The envelope 6 delimits, between the hearth 5 and the access opening 2, a chamber 7 for collecting gases and fumes whose function will appear more precisely in the following description. The envelope 6 thus internally delimits a volume V 1 accessible by the hearth plate 3 . The lower part of the internal volume V 1 contains a heat exchanger constituted by at least one and, in general, several exchange units 10 , for example eight in number, in the example illustrated, distributed regularly according to a circumference located at the periphery of the envelope 6 , in order to leave free the central part 5a of the hearth.

Chaque unité d'échange 10 comprend un tube de gaz et fumées 12 s'étendant verticalement sur sensiblement toute la hauteur du foyer 5 en s'ouvrant, d'un côté, à proximité du fond 6a et, de l'autre côté, dans la chambre 7 de collecte des gaz et fumées. Par exemple, chaque tube de gaz et fumées 12 présente une section droite transversale circulaire. Chaque unité d'échange 10 comporte également une enveloppe d'échange 13 entourant à distance le tube 12 sur sa majeure partie pour délimiter une capacité lamellaire C1 pour un fluide caloporteur. Chaque enveloppe d'échange 13 est fermée sur la partie inférieure du tube associé 12 et se trouve fixée à une paroi transversale 14 se raccordant à l'enveloppe 6.Each exchange unit 10 comprises a gas and smoke tube 12 extending vertically over substantially the entire height of the hearth 5 , opening, on one side, near the bottom 6a and, on the other side, in chamber 7 for collecting gases and fumes. For example, each gas and smoke tube 12 has a circular cross section. Each exchange unit 10 also includes an exchange envelope 13 surrounding the tube 12 at a distance over its major part to delimit a lamellar capacity C 1 for a heat transfer fluid. Each exchange envelope 13 is closed on the lower part of the associated tube 12 and is fixed to a transverse wall 14 connecting to the envelope 6 .

Les capacités lamellaires C1 des unités d'échange 10 sont destinées à faire partie d'un circuit 16 de circulation d'un fluide caloporteur. Les capacités lamellaires C1 débouchent par des passages de communication 17 réalisés à la partie supérieure des tubes 12, dans une chambre de mélange 18 délimitée en partie par l'enveloppe 6 et par un caisson 19 périphérique entourant le foyer 5 au niveau de sa partie supérieure et la chambre de collecte des gaz et fumées 7 au niveau de sa partie inférieure. Le caisson 19 qui délimite un volume interne C2, se trouve prolongé par une plaque annulaire 21 sur laquelle sont fixés les tubes de gaz et fumées 12. La plaque annulaire 21 s'étend à distance de la paroi transversale 14 qui se trouve reliée à la plaque 21 au niveau de leurs bords extrêmes, de manière à laisser subsister entre la chambre 7 et le foyer 5, une ouverture 22. Le caisson 19 est équipé de tubulures de raccordement à au moins un circuit d'utilisation du fluide caloporteur. Dans l'exemple illustré, le caisson 19 est équipé, à sa partie haute, d'une tubulure de sortie 23a et, à sa partie inférieure, d'une tubulure de retour 23b.The lamellar capacities C 1 of the exchange units 10 are intended to form part of a circuit 16 for circulation of a heat transfer fluid. The lamellar capacities C 1 open out through communication passages 17 made at the top of the tubes 12 , in a mixing chamber 18 delimited in part by the casing 6 and by a peripheral box 19 surrounding the hearth 5 at its part upper and the gas and smoke collection chamber 7 at its lower part. The box 19 which delimits an internal volume C 2 , is extended by an annular plate 21 on which the gas and smoke tubes are fixed 12. The annular plate 21 extends at a distance from the transverse wall 14 which is connected to the plate 21 at their extreme edges, so as to leave an opening 22 between the chamber 7 and the hearth 5 . The box 19 is equipped with pipes connecting to at least one circuit for using the heat transfer fluid. In the example illustrated, the box 19 is equipped, at its upper part, with an outlet pipe 23a and, at its lower part, with a return pipe 23b .

La chambre de mélange 18 communique, à sa partie inférieure, avec une lame périmétrique C3 délimitée entre la partie inférieure de l'enveloppe 6 et une coiffe externe 24. Cette coiffe 24 s'étend à distance de l'enveloppe 6 pour délimiter avec elle une lame périmétrique ou une capacité C3 de faible largeur sensiblement constante. Il doit être considéré que la lame périmétrique C3 , la chambre de mélange 18 de capacité C2 et les capacités lamellaires C1 des unités d'échange, représentent ainsi le circuit 16 de circulation d'un fluide caloporteur pouvant être prélevé et ramené par des tubulures de raccordement 23a, 23b.The mixing chamber 18 communicates, at its lower part, with a perimeter blade C 3 delimited between the lower part of the casing 6 and an external cap 24 . This cap 24 extends at a distance from the envelope 6 to delimit with it a perimeter strip or a capacity C 3 of narrow width that is substantially constant. It must be considered that the perimeter plate C 3 , the mixing chamber 18 of capacity C 2 and the lamellar capacities C 1 of the exchange units, thus represent the circuit 16 for circulation of a heat-transfer fluid which can be removed and brought back by connecting pipes 23a , 23b .

Selon une caractéristique préférée de réalisation et tel que cela apparaít plus précisément aux fig. 2 et 3, la chambre de mélange 18 communique avec la lame périmétrique C3 par l'intermédiaire d'une série d'orifices calibrés 26 aménagés régulièrement dans un fond 27 de la chambre de mélange, formé par exemple, par un retour de l'enveloppe 6. Le nombre et la section de passage des orifices calibrés 26 sont choisis pour permettre de déterminer le passage du fluide caloporteur de la lame périmétrique C3 vers la chambre de mélange 18.According to a preferred embodiment characteristic and as it appears more precisely in FIGS. 2 and 3 , the mixing chamber 18 communicates with the perimeter blade C 3 via a series of calibrated orifices 26 arranged regularly in a bottom 27 of the mixing chamber, formed for example by a return of the 'envelope 6 . The number and the section of passage of the calibrated orifices 26 are chosen to make it possible to determine the passage of the heat transfer fluid from the perimeter strip C 3 to the mixing chamber 18 .

Le fond 27 de la chambre de mélange 18 présente ainsi une face externe 27a qui se trouve en contact avec le fluide caloporteur provenant de la lame périmétrique C3. A cet effet, la coiffe 24 est prolongée par une collerette 29 s'étendant à distance du fond 27 pour permettre à la totalité de la face externe 27a du fond d'être en contact avec le fluide caloporteur provenant de la lame périmétrique C3 . Une telle disposition offre l'avantage que le fond 27 de la chambre de mélange 18 dans laquelle débouche le retour de l'installation 23b, présente une température chaude suffisante, afin d'éviter de constituer une zone froide ou de stagnation d'un fluide caloporteur à une température favorisant la prolifération des bactéries.The bottom 27 of the mixing chamber 18 thus has an external face 27a which is in contact with the heat transfer fluid coming from the perimeter blade C 3 . To this end, the cap 24 is extended by a flange 29 extending away from the bottom 27 to allow the entire external face 27a of the bottom to be in contact with the heat transfer fluid coming from the perimeter strip C 3 . Such an arrangement offers the advantage that the bottom 27 of the mixing chamber 18 into which the return of the installation 23b opens, has a sufficient hot temperature, in order to avoid forming a cold zone or a stagnation of a fluid. coolant at a temperature favoring the proliferation of bacteria.

Selon une caractéristique avantageuse de l'invention, la chambre de collecte des gaz et fumées 7 est fermée par la plaque foyère 3 comportant une prise 31 pour l'air de combustion communiquant avec un circuit 32 de circulation pour l'air de combustion. Comme illustré aux fig. 4 et 5, le circuit de circulation d'air 32 est aménagé dans la plaque foyère 3, de manière à assurer le cheminement de l'air selon un trajet déterminé représenté par les flèches f. L'air de combustion pénètre par la prise d'air 31, à l'intérieur de la plaque foyère 3 et se trouve récupéré par un passage 33 débouchant dans un logement ou une volute 34 aménagée dans la plaque foyère 3. La volute 34 est destinée à être occupée en partie, par une turbine 35 entraínée en rotation par l'intermédiaire d'un moteur 36 fixé sur la face externe de la plaque foyère 3. La volute 34 comporte une sortie 37 débouchant dans un brûleur 39 monté dans la région centrale de la chambre 7 de collecte des gaz et fumées. Le brûleur 39, qui est du type à fioul dans l'exemple illustré, est entouré d'un manchon d'isolation thermique 40 monté sur la plaque annulaire 21, permettant ainsi au brûleur 39 de s'ouvrir à l'intérieur du foyer 5, dans sa partie centrale 5a, par l'intermédiaire de l'ouverture 22. According to an advantageous characteristic of the invention, the gas and smoke collection chamber 7 is closed by the hearth plate 3 comprising a socket 31 for the combustion air communicating with a circulation circuit 32 for the combustion air. As illustrated in fig. 4 and 5 , the air circulation circuit 32 is arranged in the hearth plate 3 , so as to ensure the flow of air along a determined path represented by the arrows f. The combustion air enters through the air intake 31 , inside the hearth plate 3 and is recovered by a passage 33 opening into a housing or a volute 34 arranged in the hearth plate 3 . The volute 34 is intended to be occupied in part by a turbine 35 driven in rotation by means of a motor 36 fixed on the external face of the hearth plate 3 . The volute 34 has an outlet 37 opening into a burner 39 mounted in the central region of the chamber 7 for collecting gases and fumes. The burner 39 , which is of the oil type in the example illustrated, is surrounded by a thermal insulation sleeve 40 mounted on the annular plate 21 , thus allowing the burner 39 to open inside the hearth 5 , in its central part 5a , via the opening 22.

Dans l'exemple de réalisation illustré, le brûleur 39 est associé à une canalisation 43 d'amenée du fioul jusqu'à un gicleur 44 situé à la partie basse du brûleur 39. La canalisation d'amenée 43 traverse la plaque foyère 3 par l'intermédiaire d'un passage 45 et se trouve raccordée à une pompe 48 fixée sur la face externe de ladite plaque 3. De façon avantageuse, la canalisation d'amenée 43 traverse au moins en partie, le circuit 32 de circulation d'air de combustion, de manière à permettre le réchauffage du fioul par échange thermique entre le fioul et l'air de combustion par l'intermédiaire de la canalisation d'amenée 43. Dans l'exemple illustré, la canalisation d'amenée 43 traverse transversalement le circuit de circulation d'air de combustion 32 et comporte plusieurs spires conformées au niveau de la sortie 37 de la volute, de manière à favoriser l'élévation de température du fioul.In the illustrated embodiment, the burner 39 is associated with a pipe 43 for supplying the oil to a nozzle 44 located at the bottom of the burner 39 . The supply pipe 43 crosses the hearth plate 3 via a passage 45 and is connected to a pump 48 fixed on the external face of said plate 3 . Advantageously, the supply pipe 43 passes at least partially through the circuit 32 for circulation of combustion air, so as to allow the heating of the fuel oil by heat exchange between the fuel oil and the combustion air through the intermediate of the supply pipeline 43 . In the example illustrated, the supply pipe 43 crosses the combustion air circulation circuit 32 transversely and comprises several turns shaped at the outlet 37 of the volute, so as to promote the temperature rise of the fuel oil. .

La plaque foyère 3 comporte, sur sa face interne, un revêtement d'isolation thermique 50 destiné à venir fermer l'ouverture 2 d'accès au foyer 5. La plaque foyère 3 comporte également un passage 52 d'évacuation des gaz et filmées communiquant avec la chambre de collecte 7 qui récupère les gaz et fumées sortant des tubes 12. Il est à noter que cette chambre de collecte 7 constitue également une chambre de détente pour les gaz et fumées sortant des tubes 12. Il est à noter que la hauteur de cette chambre de collecte 7 est adaptée pour permettre de réduire le bruit de détente des gaz et fumées.The hearth plate 3 has, on its internal face, a thermal insulation coating 50 intended to close the opening 2 for access to the hearth 5. The hearth plate 3 also has a passage 52 for evacuating the gases and filmed communicating with the collection chamber 7 which collects the gases and fumes leaving the tubes 12 . It should be noted that this collection chamber 7 also constitutes an expansion chamber for the gases and fumes leaving the tubes 12 . It should be noted that the height of this collection chamber 7 is adapted to make it possible to reduce the noise of expansion of the gases and fumes.

Le passage d'évacuation 52 est réalisé par un manchon, par exemple coudé, traversant la plaque foyère 3. De préférence, un tel manchon 52 est monté à l'intérieur d'une manche coudée formant la prise d'air 31. Le montage concentrique de la prise d'air 31 et du manchon d'évacuation des gaz et fumées 52 permet d'élever la température de l'air de combustion à l'aide des parois du manchon 52 constituant une capacité d'échange avec l'air de combustion.The evacuation passage 52 is produced by a sleeve, for example bent, passing through the hearth plate 3 . Preferably, such a sleeve 52 is mounted inside a bent sleeve forming the air intake 31 . The concentric mounting of the air intake 31 and the gas and smoke evacuation sleeve 52 makes it possible to raise the temperature of the combustion air using the walls of the sleeve 52 constituting an exchange capacity with the combustion air.

Dans le même sens, le cheminement forcé de l'air de combustion à l'intérieur de la plaque foyère 3, permet également d'assurer l'élévation de la température de l'air de combustion en raison de la chaleur apportée à la plaque foyère 3 grâce à la chambre de collecte 7. De plus, l'air de combustion ainsi réchauffé sert avantageusement à réchauffer également le fioul avant sa combustion. L'élévation de la température de l'air de combustion et du fioul permet d'obtenir un bon de rendement de combustion. In the same direction, the forced routing of the combustion air inside the hearth plate 3 , also makes it possible to ensure the rise in the temperature of the combustion air due to the heat brought to the plate hearth 3 thanks to the collection chamber 7 . In addition, the combustion air thus reheated advantageously serves to also reheat the fuel oil before its combustion. Raising the temperature of the combustion air and the fuel oil makes it possible to obtain a good combustion efficiency.

Le brûleur 39 permet d'assurer la combustion dans le foyer 5 et de faire circuler les gaz et fumées dans le sens des flèches f1 . Les gaz et fumées sont astreints à descendre dans la partie centrale du foyer 5 en léchant les enveloppes d'échange 13, pour ensuite s'élever à l'intérieur des tubes 12 qui subissent également une montée en température. Ces gaz et fumées sont ensuite recueillis dans la chambre de collecte 7, en vue d'être évacués par le passage d'évacuation 52.The burner 39 makes it possible to ensure combustion in the hearth 5 and to circulate the gases and fumes in the direction of the arrows f 1 . The gases and fumes are forced to descend into the central part of the hearth 5 by licking the exchange envelopes 13 , then to rise inside the tubes 12 which also undergo a rise in temperature. These gases and fumes are then collected in the collection chamber 7 , with a view to being evacuated by the evacuation passage 52 .

Le fonctionnement du brûleur 39 conduit à une forte montée en température de l'enveloppe 6 et des enveloppes d'échange 13, qui est transmise au fluide caloporteur occupant la lame périmétrique C3 et les capacités lamellaires C2 des unités d'échange. Ces capacités de fluide montent très vite en température et s'élèvent verticalement pour pénétrer dans la chambre de mélange 7, à sa partie basse par les orifices calibrés 26 et, à sa partie haute, par les passages de communication 17. Un tel transfert de fluide provoque une montée rapide en température du fluide caloporteur contenu dans la chambre de mélange 18. Il apparaít que l'échangeur de chaleur constitué de la lame périmétrique C3 et des capacités lamellaires C2, met en oeuvre un volume limité de fluide permettant de réduire le temps de montée en température du fluide.The operation of the burner 39 leads to a sharp rise in temperature of the envelope 6 and of the exchange envelopes 13 , which is transmitted to the heat transfer fluid occupying the perimeter blade C 3 and the lamellar capacities C 2 of the exchange units. These fluid capacities rise very quickly in temperature and rise vertically to penetrate into the mixing chamber 7 , at its lower part by the calibrated orifices 26 and, at its upper part, by the communication passages 17 . Such a transfer of fluid causes a rapid rise in temperature of the heat transfer fluid contained in the mixing chamber 18 . It appears that the heat exchanger consisting of the perimeter blade C 3 and the lamellar capacities C 2 , uses a limited volume of fluid making it possible to reduce the temperature rise time of the fluid.

Il doit être noté que la réalisation d'une plaque foyère 3 qui permet par nature de fermer le foyer 5, offre l'avantage d'assurer un préchauffage de l'air de combustion, ainsi que du fioul par l'intermédiaire des gaz et fumées présents dans la chambre de collecte 7 et évacués par le passage 52. Cette plaque foyère 3 est montée de toute manière appropriée sur l'extrémité supérieure de l'enveloppe 6. Un autre avantage de l'invention réside dans la disposition de l'échangeur dans la partie basse du foyer et du brûleur dans la partie haute. En effet, il résulte de cette disposition une répartition plus régulière sur les surfaces d'échange, des gaz et filmées qui suivent un mouvement imposé permettant d'obtenir un bon rendement de l'énergie consommée. La disposition du brûleur dans la partie haute du foyer, permet également d'éliminer les problèmes d'absorption des poussières, de favoriser son accès et son entretien et d'adapter un autre type de brûleur, par exemple du type à gaz.It should be noted that the production of a stove plate 3 which, by its nature, makes it possible to close the hearth 5 , offers the advantage of ensuring preheating of the combustion air, as well as of the fuel oil via the gases and smoke present in the collection chamber 7 and discharged through passage 52 . This hearth plate 3 is mounted in any suitable manner on the upper end of the casing 6 . Another advantage of the invention lies in the arrangement of the exchanger in the lower part of the hearth and of the burner in the upper part. In fact, this arrangement results in a more regular distribution over the exchange surfaces, of gases and films which follow an imposed movement making it possible to obtain a good return on the energy consumed. The arrangement of the burner in the upper part of the hearth also makes it possible to eliminate the problems of absorption of dust, to favor its access and maintenance and to adapt another type of burner, for example of the gas type.

La fig. 6 illustre un exemple de réalisation d'une chaudière de chauffage du type à gaz. La chaudière de chauffage du type à gaz est constituée de la même façon que la chaudière de chauffage du type à fioul décrite aux fig. 1 à 5. A ce sujet, les références utilisées pour la chaudière de chauffage du type à fioul sont conservées. La principale modification concerne le brûleur 39 qui est du type à gaz et la canalisation d'amenée de gaz 43 qui débouche dans la plaque foyère au niveau de la sortie 37 de la volute 34. Le gaz se trouve ainsi mélangé avec l'air issu de la volute 34 dans une enceinte de mélange 39' faisant partie du brûleur 39. Cette canalisation d'amenée de gaz 43 est reliée à une vanne de commande 48' fixée sur la face externe de la plaque foyère 3 et permettant de commander l'alimentation ou l'arrêt en gaz. Il est à noter que dans cette variante de réalisation, la chambre de détente 7 présente une hauteur réduite par rapport à la chambre 7 faisant partie d'une chaudière de chauffage du type fioul. Fig. 6 illustrates an exemplary embodiment of a gas-type heating boiler. The gas type heating boiler is constituted in the same way as the oil type heating boiler described in figs. 1 to 5 . In this regard, the references used for the oil-type heating boiler are kept. The main modification concerns the burner 39 which is of the gas type and the gas supply pipe 43 which opens into the hearth plate at the outlet 37 of the volute 34 . The gas is thus mixed with the air coming from the volute 34 in a mixing enclosure 39 'forming part of the burner 39 . This gas supply pipe 43 is connected to a control valve 48 ′ fixed to the external face of the hearth plate 3 and making it possible to control the supply or shutdown of gas. It should be noted that in this alternative embodiment, the expansion chamber 7 has a reduced height compared to the chamber 7 forming part of a heating boiler of the oil type.

L'invention n'est pas limitée aux exemples décrits et représentés, car diverses modifications peuvent y être apportées sans sortir de son cadre.The invention is not limited to the examples described and shown, since various modifications can be made without departing from its scope.

Claims (10)

Chaudière de chauffage d'un fluide caloporteur comportant : un foyer (5) fermé par une plaque foyère (3) et délimitant par son volume interne, un circuit de circulation des gaz et fumées produits par un brûleur (39), et un échangeur de chaleur entre le circuit de circulation des gaz et fumées et un circuit (16) de circulation du fluide caloporteur, l'échangeur de chaleur étant constitué par n unités d'échange (10) comprenant chacune, d'une part, un tube de gaz et fumées (12) s'étendant verticalement en communiquant, à sa partie basse, avec le foyer (5) et, d'autre part, une enveloppe d'échange (13) délimitant avec le tube (12), une capacité d'échange lamellaire de fluide (C1),    caractérisée en ce que la plaque foyère (3) : comporte un passage (45) pour une canalisation (43) d'amenée d'un combustible jusqu'au brûleur (39), comporte une prise (31) pour l'air de combustion, délimite intérieurement un circuit (32) de circulation pour l'air de combustion communiquant avec la prise d'air (31) et débouchant dans un logement (34) pour une turbine (35) dont la sortie (37) communique avec le brûleur (39), et comporte un passage d'évacuation (52) pour les gaz et fumées, raccordé à une chambre (7) de collecte des gaz et fumées sortant de la partie haute des tubes de gaz et fumées (12), cette chambre de collecte (7) étant fermée au moins en partie, par la plaque foyère (3), en vue d'assurer le préchauffage de l'air de combustion. Boiler for heating a heat transfer fluid comprising: a hearth (5) closed by a hearth plate (3) and delimiting by its internal volume, a circuit for the circulation of gases and fumes produced by a burner (39) , and a heat exchanger between the circuit for circulation of gases and fumes and a circuit (16) for circulation of the heat-transfer fluid, the heat exchanger being constituted by n exchange units (10) each comprising, on the one hand, a gas and smoke tube (12) extending vertically, communicating, at its lower part, with the hearth (5) and, on the other hand, an exchange envelope (13) delimiting with the tube (12) , a lamellar fluid exchange capacity (C 1 ) , characterized in that the hearth plate (3) : comprises a passage (45) for a pipe (43) for supplying a fuel to the burner (39) , has a socket (31) for combustion air, internally defines a circulation circuit (32) for combustion air communicating with the air intake (31) and opening into a housing (34) for a turbine (35) whose outlet (37) communicates with the burner ( 39) , and comprises an evacuation passage (52) for gases and fumes, connected to a chamber (7) for collecting gases and fumes leaving the upper part of the gas and fumes tubes (12) , this collection chamber (7 ) being closed at least in part by the hearth plate (3) , in order to preheat the combustion air. Chaudière selon la revendication 1, caractérisée en ce que la canalisation d'amenée d'un combustible (43) est montée pour traverser, au moins en partie, le circuit de circulation pour l'air de combustion préchauffé, en vue d'assurer le réchauffage du combustible préalablement à sa combustion. Boiler according to claim 1, characterized in that the fuel supply pipe (43) is mounted to cross, at least in part, the circulation circuit for the preheated combustion air, in order to ensure the reheating the fuel before combustion. Chaudière selon la revendication 1, caractérisée en ce que la chambre de collecte des gaz et fumées (7) comporte une hauteur adaptée pour assurer la détente des gaz et fumées sortant de la partie haute des tubes de gaz et fumées (12).Boiler according to claim 1, characterized in that the gas and smoke collection chamber (7) has a height suitable for ensuring the expansion of the gases and smoke leaving the upper part of the gas and smoke tubes (12) . Chaudière selon la revendication 1 ou 3, caractérisée en ce que la chambre de collecte des gaz et fumées (7) s'étend au-dessus du foyer (5) qui délimite entre une enveloppe (6) et une coiffe (24), un intervalle de faible largeur, sensiblement constante, pour constituer une lame périmétrique (C3) de fluide caloporteur faisant partie du circuit (16) de circulation du fluide caloporteur.Boiler according to claim 1 or 3 , characterized in that the gas and smoke collection chamber (7) extends above the hearth (5) which delimits between an envelope (6) and a cover (24) , a interval of small width, substantially constant, to form a perimeter strip (C 3 ) of heat transfer fluid forming part of the circuit (16) for circulation of the heat transfer fluid. Chaudière selon la revendication 4, caractérisée en ce que la lame périmétrique (C3) communique, à sa partie supérieure, avec une chambre de mélange (18) équipée de tubulures de raccordement (23a, 23b) à au moins un circuit d'utilisation du fluide caloporteur.Boiler according to claim 4, characterized in that the perimeter blade (C 3 ) communicates, at its upper part, with a mixing chamber (18) equipped with connection pipes (23a, 23b) to at least one operating circuit heat transfer fluid. Chaudière selon la revendication 5, caractérisée en ce que la chambre de mélange (18) comporte un fond (27) à proximité duquel la ou les tubulures de raccordement pour le retour du fluide caloporteur sont montées, le fond (27) présentant, d'une part, des orifices calibrés (26) pour communiquer avec le fluide caloporteur provenant de la lame périmétrique (C3) et, d'autre part, une face externe en contact avec le fluide caloporteur provenant de la lame périmétrique (C3).Boiler according to claim 5, characterized in that the mixing chamber (18) has a bottom (27) near which the connection pipe or pipes for the return of the heat transfer fluid are mounted, the bottom (27) having, on the one hand, calibrated orifices (26) for communicating with the heat transfer fluid coming from the perimeter strip (C 3 ) and, on the other hand, an external face in contact with the heat transfer fluid coming from the perimeter strip (C 3 ) . Chaudière selon la revendication 1, caractérisée en ce que la prise d'air de combustion (31) entoure concentriquement le passage d'évacuation des gaz et fumées (52) pour permettre le réchauffage de l'air de combustion.Boiler according to claim 1, characterized in that the combustion air intake (31) concentrically surrounds the gas and smoke evacuation passage (52) to allow the heating of the combustion air. Chaudière selon la revendication 1, caractérisée en ce que la chambre de collecte des gaz et fumées (7) comporte dans sa partie centrale, le brûleur (39) entouré d'un manchon d'isolation thermique (40).Boiler according to claim 1, characterized in that the gas and smoke collection chamber (7) comprises in its central part, the burner (39) surrounded by a thermal insulation sleeve (40) . Chaudière selon la revendication 8, caractérisée en ce que le brûleur (39) s'ouvre dans la partie centrale (5a) du foyer, dont les unités d'échanges (10) sont réparties selon une circonférence située à la périphérie du foyer.Boiler according to claim 8, characterized in that the burner (39) opens in the central part (5a) of the hearth, the exchange units (10) of which are distributed along a circumference situated at the periphery of the hearth. Chaudière selon la revendication 1, caractérisée en ce que la plaque foyère (3) est équipée du côté du foyer, d'un revêtement d'isolation thermique (50).Boiler according to claim 1, characterized in that the hearth plate (3) is equipped on the side of the hearth, with a thermal insulation coating (50) .
EP00420226A 1999-11-05 2000-11-03 Vertical heating boiler Withdrawn EP1098147A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9914200 1999-11-05
FR9914200A FR2800856B1 (en) 1999-11-05 1999-11-05 VERTICAL TYPE BOILER

Publications (1)

Publication Number Publication Date
EP1098147A1 true EP1098147A1 (en) 2001-05-09

Family

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Application Number Title Priority Date Filing Date
EP00420226A Withdrawn EP1098147A1 (en) 1999-11-05 2000-11-03 Vertical heating boiler

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EP (1) EP1098147A1 (en)
FR (1) FR2800856B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1498657A1 (en) * 2003-07-15 2005-01-19 Perge Heating boiler for granulated fuel
CN101963392A (en) * 2010-10-25 2011-02-02 吴绍光 Split normal-pressure boiler
CN101968262A (en) * 2010-11-19 2011-02-09 王文茂 Gas boiling water furnace

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB965252A (en) * 1960-02-12 1964-07-29 Stookunie Delft Nv Improvements in or relating to oil-fired hot water boiler units
DE2739511A1 (en) * 1975-12-05 1979-03-08 Broetje Fa August Blower operated burner for heating system boiler - has blower rotor between door and protection plate forming diffuser
DE2807167A1 (en) * 1978-02-20 1979-08-23 Nils Oestbo Combustion air supply for boiler - has casing contiguous with gas flow reversing chamber and bottom plate to guide air into burner
FR2614402A1 (en) * 1987-04-24 1988-10-28 Perge Ets Heating boiler with laminar exchange volumes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB965252A (en) * 1960-02-12 1964-07-29 Stookunie Delft Nv Improvements in or relating to oil-fired hot water boiler units
DE2739511A1 (en) * 1975-12-05 1979-03-08 Broetje Fa August Blower operated burner for heating system boiler - has blower rotor between door and protection plate forming diffuser
DE2807167A1 (en) * 1978-02-20 1979-08-23 Nils Oestbo Combustion air supply for boiler - has casing contiguous with gas flow reversing chamber and bottom plate to guide air into burner
FR2614402A1 (en) * 1987-04-24 1988-10-28 Perge Ets Heating boiler with laminar exchange volumes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1498657A1 (en) * 2003-07-15 2005-01-19 Perge Heating boiler for granulated fuel
FR2857732A1 (en) * 2003-07-15 2005-01-21 Perge FUEL HEATING BOILER OF THE INDIVIDUALIZED ELEMENT TYPE
CN101963392A (en) * 2010-10-25 2011-02-02 吴绍光 Split normal-pressure boiler
CN101968262A (en) * 2010-11-19 2011-02-09 王文茂 Gas boiling water furnace

Also Published As

Publication number Publication date
FR2800856A1 (en) 2001-05-11
FR2800856B1 (en) 2002-04-19

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