EP0487434B1 - Wärmetauscher für Gaskessel, Herstellungsverfahren dafür und Kessel mit einem solchen Wärmetauscher - Google Patents

Wärmetauscher für Gaskessel, Herstellungsverfahren dafür und Kessel mit einem solchen Wärmetauscher Download PDF

Info

Publication number
EP0487434B1
EP0487434B1 EP19910420410 EP91420410A EP0487434B1 EP 0487434 B1 EP0487434 B1 EP 0487434B1 EP 19910420410 EP19910420410 EP 19910420410 EP 91420410 A EP91420410 A EP 91420410A EP 0487434 B1 EP0487434 B1 EP 0487434B1
Authority
EP
European Patent Office
Prior art keywords
chamber
shell
barrel
tubes
furnace
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19910420410
Other languages
English (en)
French (fr)
Other versions
EP0487434A1 (de
Inventor
Maurice 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.)
GROUPE PERGE INVESTISSEMENT SA
Original Assignee
GROUPE PERGE INVESTISSEMENT SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GROUPE PERGE INVESTISSEMENT SA filed Critical GROUPE PERGE INVESTISSEMENT SA
Publication of EP0487434A1 publication Critical patent/EP0487434A1/de
Application granted granted Critical
Publication of EP0487434B1 publication Critical patent/EP0487434B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/0005—Details for water heaters
    • F24H9/0036—Dispositions against condensation of combustion products
    • 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
    • F24H1/26—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 the water mantle forming an integral body
    • F24H1/28—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 the water mantle forming an integral body including one or more furnace or fire tubes
    • F24H1/287—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 the water mantle forming an integral body including one or more furnace or fire tubes with the fire tubes arranged in line with the combustion chamber
    • 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
    • F24H1/48—Water heaters for central heating incorporating heaters for domestic water
    • F24H1/52—Water heaters for central heating incorporating heaters for domestic water incorporating heat exchangers for domestic water
    • 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
    • F24H9/14—Arrangements for connecting different sections, e.g. in water heaters 
    • 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
    • F24H9/14—Arrangements for connecting different sections, e.g. in water heaters 
    • F24H9/148—Arrangements of boiler components on a frame or within a casing to build the fluid heater, e.g. boiler

Definitions

  • the present invention relates to boilers operating from the energy of gas and intended to ensure the rise in temperature of a heat transfer fluid which can be used for various purposes and, more precisely, in a space heating installation and, optionally , for heating domestic hot water.
  • the invention relates, more specifically, to a new structure of the heating body intended to equip wall-mounted gas boilers.
  • patent FR 1 578 895 proposed a wall-mounted boiler for heating a heat-transfer fluid, the heating body of which comprises a hearth and a heat exchanger between a circuit for circulation of gases and fumes and a circuit for circulation of the heat transfer fluid.
  • the heat exchanger comprises a series of exchanger tubes opening inside the hearth and outside a mixing chamber forming part of the circulation circuit of the heat transfer fluid.
  • an oil-fired boiler for example CH-A-382 203
  • the heating body of which comprises a hearth and a heat exchanger between a circuit for circulation of gases and fumes and a circuit for circulation of heat-transfer fluid.
  • the heat exchanger comprises two exchanger tubes opening inside the hearth and outside a mixing chamber forming part of the circulation circuit of the heat transfer fluid.
  • the present invention aims to remedy the above drawbacks by proposing a new structure of the heating body capable of equipping a heating boiler using gas as fuel.
  • the object of the invention is to propose a heating body allowing a good transformation efficiency of the energy used to be obtained and the absence of corrosion of the various elements constituting it and responsible for the heat exchange between the gas or smoke circuit and the circulation circuit of the heat transfer fluid.
  • Another object of the invention is to offer a new structure of the heating body allowing an industrialization of its manufacturing process.
  • Another object of the invention is to propose a manufacturing method for producing a heating body capable of equipping a boiler of the gas type.
  • Fig. 1 is a sectional elevation showing an embodiment of a heating body according to the invention.
  • Fig. 2 is a side view taken substantially along line II-II of FIG. 1.
  • Fig. 3 is a cross-sectional view taken substantially along line III-III of FIG. 2 .
  • Fig. 4 is an exploded sectional view showing the manufacture of a heating body according to the invention.
  • Figs. 4A, 4B, 4C are characteristic details illustrating the principle of construction of the heating body in accordance with FIG. 4 .
  • Fig. 5 is a view, similar to FIG. 1 , showing a heating body fitted with a coil for the production of domestic hot water.
  • Fig. 6 is a front elevation view of a boiler partially equipped with its constituent elements.
  • Fig. 7 is a side elevation view taken substantially along lines VII-VII of FIG. 6 .
  • Fig. 8 is a top view taken substantially along lines VIII-VIII of FIG. 6 .
  • Fig. 9 is a sectional view of a characteristic detail illustrated in FIG. 6 .
  • Figs. 1 to 3 illustrate an exemplary embodiment of a heating body intended to equip a heating boiler using gas as fuel.
  • the heating body according to the invention comprises a heat exchanger 1 constituted in the form of a carrier body comprising a series of exchanger tubes 2 , forming a barrel and mounted inside a ferrule 3 having, for example, a circular cross section.
  • the peripheral tubes 2 are mounted near the ferrule to allow to remain, with the wall of the latter, an interval of small width whose function will appear more precisely in the following description ( fig. 2 ).
  • the exchanger tubes 2 extend substantially parallel to each other, being spaced from one another and are fixed, by their base 21 , to a combustion hearth 4 and, by their apex 22 , to a mixing chamber 5 passing through it.
  • the ferrule 3 is fixed, by its low end 31 , to the hearth 4 , while its high end 32 carries the chamber 5 .
  • the exchanger tubes 2 for example in the number of twenty-two, therefore open inside the hearth 4 and outside the chamber 5 , while passing through the ferrule 3 and the chamber 5 right through.
  • the tubes 2 therefore constitute a gas and smoke circulation circuit, represented by the arrows f , coming from the hearth 4 and rising through the tubes to be evacuated outside the chamber 5 towards a manifold not shown.
  • the walls of the tubes 2 constitute exchange capacities with a circulation circuit of a heat-transfer fluid intended to be contained in the internal volume V of the shell 3 and of the internal volume V1 of the chamber 5 .
  • the chamber 5 is advantageously offset relative to the axis of symmetry S of the ferrule 3 making it possible to provide or delimit, below the chamber 5 and in relation to the ferrule 3 , a compartment or a housing 6 , shown in broken lines and adapted to receive various functional members of the heating boiler.
  • the combustion hearth 4 consists of a support or an envelope 8 delimiting, internally, a volume for receiving a burner, not shown, of the gas type.
  • the envelope 8 extends, in relation to the distance of a cap 9 of shape substantially complementary to the envelope, to define between them a lamellar capacity V2 communicating with the internal volume V of the ferrule 3 .
  • the casing 8 is therefore intended to receive the feet 21 of the tubes, while the ferrule 3 is fixed to the cover 9 .
  • the chamber 5 has, internally, a tubular extension 11 of the ferrule 3 surrounding the tubes 2 and leaving, with the upper wall 51 of the chamber receiving the vertices 22 of the tubes, an annular passage 12 whose function will appear in the description which follows.
  • the tubular extension 11 is provided with a series of openings 13 formed in its lower end part opposite to that high delimiting the annular passage ( 12 ).
  • this heating body allows, by means of a burner mounted inside the casing 8 , to ensure combustion in the hearth 4 and to circulate the gases in the direction of the arrows f to the inside the exchanger tubes 2 .
  • the combustion gases and fumes are forced to rise inside tubes passing successively through the ferrule 3 and the chamber 5 , before being collected in a collecting box.
  • the envelope 8 undergoes a sharp rise in temperature which is transmitted to the blade of fluid occupying the lamellar capacity V2 .
  • This fluid capacity rises very quickly in temperature and rises vertically, along the arrows f1 , along the wall of the shell 3 and of the tubular extension 11 .
  • This fraction of fluid which has a high temperature, penetrates, through the annular passage 12 , inside the chamber 5 .
  • the openings 13 of the extension 11 ensure, with a pressure drop, the passage of a fraction of fluid, from the volume V1 of the chamber 5 to the volume V of the shell 2 .
  • Such a fluid transfer represented by the arrows f2 , causes a rapid rise in temperature of the fluid of the volume V of the exchanger.
  • the tubes 2 are thus heated by the fluid on their face external to the gas and smoke circulation circuit, to a temperature close to that of the internal faces subjected to the gases and smoke.
  • This arrangement eliminates the risk of condensation by temperature heterogeneity on the two faces of the walls which form the interface between the fluid circuit and the gas and smoke circulation circuit.
  • the new structure of the heating body described above which is made of a metallic material, makes it possible to limit the risks of corrosion over time and to authorize an industrial manufacturing process described below by way of example.
  • the manufacture of such a heating body can be carried out by adapting, on the casing 8 , the cover 9 coming to bear on a flange 81 presented by the lower part of the casing 8 ( fig. 4A ).
  • the casing 8 which has, for example, a circular cross section, is provided with bosses 14 ensuring the centering of the cap 9 .
  • the ferrule 3 is adapted, by its lower end 31 , on a constriction 91 formed on the cap 9 ( fig. 4B ).
  • the exchange tubes 2 are then positioned inside orifices 15 formed in the transverse wall 82 of envelope 8 .
  • the upper end 32 of the ferrule 3 is provided with a shoulder 3 a ( FIG. 4C ) intended to receive a lower half-shell 5 a .
  • the half-shell 5 has a lower transverse wall includes 52 provided with a central opening bordered by an annular return inflected 53 designed to bear against the shoulder 3 a.
  • the half-shell 5 a is capable of receiving, by its junction edge 54 , an upper half-shell 5 b to form the chamber 5 .
  • the chamber 5 has a cross section of circular section.
  • the vertices 22 of the tubes are then each positioned in holes 16 formed in the high transverse wall 51 of the half-shell 5b .
  • the tubes 2 are assembled to the upper half-shell 5b and to the casing 8 , making it possible to support all of the component parts of the heating body.
  • the tubes can be assembled by mounting washers or fusible pads 17 , on the legs 21 and the tops 22 of the tubes.
  • Such pre-assembly of the heating body, the exchanger of which constitutes a carrier body allows prepositioning of the different parts between them.
  • the different stages of the manufacturing process can be carried out in the reverse order to that described.
  • the method described above has the advantage of allowing industrial manufacture of the heating body, insofar as it implements usual manufacturing operations.
  • the tubular extension 11 can be formed directly by the ferrule 3 or by an insert, as illustrated in FIG. 4 .
  • the added extension 11 is mounted inside the lower half-shell 5 a , prior to the adaptation on the latter of the upper half-shell 5 b .
  • the extension 11 is provided, for example at its lower end, with a curved annular rim 11 a coming to bear on the return 5 3 of the half-shell 5 a .
  • it can be provided, as illustrated in FIG. 5 , to replace the extension 11 , inside the chamber 5 , by a coil 18 surrounding the tubes 2 and the inlet of which is connected to a cold water supply pipe 19 , while the outlet is connected to a pipe 20 for supplying instant hot water.
  • the heating body according to the invention is intended to constitute, in part, a wall-mounted heating boiler 21 , of the gas type, the walls of which, not shown, are shown by broken lines in the drawings.
  • the heating body is equipped, in particular, with an expansion vessel 22 connected to the chamber 5 and with a return pipe 23 of a heating circuit, on which a circulator 24 is fitted.
  • the expansion tank 22 and the circulator 24 are mounted in the compartment or the housing 6 , so as to limit the size of the boiler, as shown more precisely in FIG. 7 .
  • the offset of the chamber 5 is produced at the front of the boiler, so that such a compartment 6 is located on the front part of the boiler allowing easy access to the various constituent parts of the boiler.
  • the heating body is also equipped with a burner B adapted to the interior of the envelope of the hearth 4 .
  • the return pipe 23 of the heating circuit is adapted, preferably, on the lower part of the chamber 5 , namely on the transverse wall 52 of the lower half-shell 5 a on which the pipe 27 of start of the heating circuit.
  • the pipe 20 for supplying instantaneous domestic hot water is fitted on the transverse wall 52
  • the pipe 19 for supplying cold water is mounted on the transverse wall 51 of the half-shell.
  • the production of sanitary hot water can be carried out by using either a coil, as described above, or a storage tank incorporating an exchanger.
  • connection of the pipes to the chamber 5 is advantageously carried out by means of a plate 30 , mounted inside the chamber 5 and provided with threads 31 each extending in relation to a hole 32 made in the wall 52 of the chamber.
  • Each hole 32 is intended to receive, outside the chamber, a threaded connection 33 intended to cooperate with the corresponding thread 31 and to receive a connection pipe.
  • a seal 34 is interposed between the wall 52 of the chamber and a threaded connection.

Claims (15)

  1. Erwärmungskörper für einen Heizkessel zum Erhitzen eines Wärmeträgerfluids, welches Aggregat umfaßt:
    - eine Brennkammer (4) und
    - einen Wärmetauscher (1) zwischen einer Leitung für die Zirkulation von Gas und Rauch und einer Leitung für die Zirkulation des Wärmeträgerfluids, wenigstens teilweise aus einer Mischkammer (5) bestehend, wobei der Wärmetauscher (1) eine Serie von Wärmetauscherrohren (2) aufweist, die zum Inneren der Brennkammer (4) und dem Äußeren der Mischkammer (5) hin offen sind,
    dadurch gekennzeichnet,
    daß der Wärmetauscher (1) in Form eines Trägerkörpers mit einem Mantel (3) ausgebildet ist, wobei der Mantel über eines seiner Enden an der Brennkammer (4) und über das andere seiner Enden an der Mischkammer (5) befestigt ist und die Wärmetauscherrohre (2) enthält, die über ihren Fuß (2₁) an der Brennkammer und über ihre Spitze (2₂) an der Mischkammer (5) diese durchquerend befestigt sind.
  2. Erwärmungskörper nach Anspruch 1, dadurch gekennzeichnet, daß die Mischkammer (5) gegen die Symmetrieachse (S) des Mantels versetzt ist, um unterhalb der Kammer und in Beziehung zum Mantel ein Fach (6) zu bilden, das zur Unterbringung von funktionellen Organen eingerichtet ist.
  3. Erwärmungskörper nach Anspruch 1, dadurch gekennzeichnet, daß die Brennkammer (4) aus einer Hülle (8), die innerlich den Raum zur Aufnahme des Brenners begrenzt, und einer Kappe (9) gebildet ist, die sich beabstandet von der Hülle erstreckt und mit dieser einen Lamellenhohlraum (V₂) vorgibt, der mit dem Innenraum des Mantels in Verbindung steht.
  4. Erwärmungskörper nach Anspruch 1, dadurch gekennzeichnet, daß die Kammer (5) innerlich eine rohrförmige Verlängerung (11) des Mantels aufweist, die die Wärmetauscherrohre umgibt und zusammen mit der Wand (5₁) der Mischkammer, die die Spitzen der Rohre aufnimmt, einen Durchgang (12) freiläßt, der eine Zirkulation zur Verlagerung des Fluids in Richtung vom Mantel zur Kammer ermöglicht, wobei die Verlängerung (11) auch Öffnungen (13) umfaßt, die eine Verlagerung des Fluids in Richtung von der Kammer zum Mantel sicherstellen.
  5. Erwärmungskörper nach Anspruch 1, dadurch gekennzeichnet, daß die Kammer (5) im Inneren eine Wendel (18) für die Zirkulation von heißem Brauchwasser umfaßt.
  6. Erwärmungskörper nach Anspruch 1, dadurch gekennkennzeichnet, daß die Kammer (5) mit Rohrleitungen zum Anschluß an wenigstens einen Kreislauf zur Verwendung des Wärmeträgerfluids in Beziehung steht.
  7. Erwärmungskörper nach Anspruch 6, dadurch gekennzeichnet, daß die Kammer (5) im Innern eine Platte (30) zum Anschluß der Rohrleitungen umfaßt, die mit Gewindebohrungen (31) versehen ist, die jeweils in Beziehung zu einem in den Wänden der Kammer gebildeten Loch (32) verlaufen, und die bestimmt ist, um eine Anschlußrohrleitung aufzunehmen, die mit dem entsprechenden Gewinde zusammenwirkt.
  8. Heizkessel, gekennzeichnet durch:
    - ein Erwärmungskörper nach einem der Ansprüche 1 bis 7,
    - ein Expansionsgefäß (22) und eine Umwälzpumpe (24), die im Inneren des durch die Versetzung der Kammer vorgegebenen Fachs (6) angebracht sind, und
    - einen von der Hülle der Brennkammer getragenen Gasbrenner (B).
  9. Verfahren zur Herstellung eines Erwärmungskörpers für einen Gasheizkessel;
    gekennzeichnet durch folgende Schritte;
    - Anpassen eines Mantels (3) über eines seiner Enden an eine mit Öffnungen versehene Brennkammer (4)
    - Positionieren, innerhalb einer jeden in der Brennkammer gebildeten Öffnung, eines Fußes (2₁) eines Wärmetauscherrohrs (2), das mit der Brennkammer (4) in Verbindung steht und den Innenraum des Mantels durchläuft, um außerhalb des letzteren zu münden;
    - Montieren einer unteren Halbschale (5a) am anderen Ende des Rings,
    - Anpassen einer oberen Halbschale (5b) an der unteren Halbschale, um eine Kammer (V₁) vorzugeben, die mit dem Innenraum (V) des Mantels in Verbindung steht, und Positionieren, innerhalb eines jeden in der oberen Halbschale gebildeten Durchgangs, der Spitze (2₂) eines Wärmetauscherrohrs, das die Kammer durchläuft, um mit dem Äußeren der Kammer in Verbindung zu stehen, und
    - Anbauen der Rohre (2) an die obere Halbschale (5b) und die Brennkammer (4), um eine Vormontage des Erwärmungskörpers sicherzustellen.
  10. Verfahren nach Anspruch 9, gekennzeichnet durch die Schritte:
    - Anpassen des Mantels (3) an eine Kappe (9) der Brennkammer, die im Abstand von der Hülle (8) verläuft, um mit dieser einen Lamellenhohlraum (V₂) vorzugehen, der mit dem Innenraum (V) des Rings in Verbindung steht, und
    - Anpassen, an die Hülle (8), der Füße der Wärmetauscherrohre, die sich zum Innenraum der Hülle hin öffnen, die vorgesehen ist, um den Brenner aufzunehmen.
  11. Verfahren nach Anspruch 10, gekennzeichnet durch die Schritte:
    - Anbringen der Kappe (9), so daß sie auf einer am unteren Bereich der Hülle gebildeten Rand (8₁) ruht,
    - Anpassen des Mantels (3) an eine am oberen Bereich der Kappe gebildete Einschnürung (9₁),
    - Montieren der unteren Halbschale (5a) an einer am oberen Bereich des Mantels vorgesehenen Schulter (3a).
  12. Verfahren nach Anspruch 9, dadurch gekennzeichnet, daß vor der Montage der unteren Halbschale an der oberen Halbschale eine rohrförmige Verlängerung (11) innerhalb der unteren Halbschale die Wärmetauscherrohre umgebend und in der Kammer einen Innenraum vorgebend montiert wird, wobei der Innenraum einerseits direkt mit dem Innenraum des Mantels und andererseits mit der Kammer über einen umlaufenden Durchgang (12) in Verbindung steht, der zwischen der Spitze der Verlängerung und der oberen Halbschale bestehen bleibt.
  13. Verfahren nach Anspruch 9, dadurch gekennzeichnet, daß vor der Montage der zwei Halbschalen eine Wendel (18) innerhalb der unteren Halbschale montiert wird.
  14. Verfahren nach Anspruch 9, dadurch gekennzeichnet, daß die Rohre (2) an der oberen Halbschale (5a) und der Brennkammer (4) angebracht werden, indem an den Füßen und Spitzen der Rohre schmelzbare Ringe montiert werden.
  15. Verfahren nach den Ansprüchen 9 und 11, dadurch gekennzeichnet, daß eine Schweißnaht hergestellt wird zwischen:
    - der Kappe (9) und dem Rand (8₁) der Hülle,
    - dem Mantel (3) und dem oberen Bereich der Kappe (9),
    - der unteren Halbschale (5a) und der von dem Mantel getragenen Schulter (3₂) und
    - den Verbindungsrändern (5₂) der oberen und unteren Halbschale.
EP19910420410 1990-11-19 1991-11-19 Wärmetauscher für Gaskessel, Herstellungsverfahren dafür und Kessel mit einem solchen Wärmetauscher Expired - Lifetime EP0487434B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9014695A FR2669409B1 (fr) 1990-11-19 1990-11-19 Corps de chauffe pour chaudiere, du type a gaz, son procede de fabrication et chaudiere incorporant un tel corps de chauffe.
FR9014695 1990-11-19

Publications (2)

Publication Number Publication Date
EP0487434A1 EP0487434A1 (de) 1992-05-27
EP0487434B1 true EP0487434B1 (de) 1995-02-01

Family

ID=9402557

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910420410 Expired - Lifetime EP0487434B1 (de) 1990-11-19 1991-11-19 Wärmetauscher für Gaskessel, Herstellungsverfahren dafür und Kessel mit einem solchen Wärmetauscher

Country Status (3)

Country Link
EP (1) EP0487434B1 (de)
DE (1) DE69107178T2 (de)
FR (1) FR2669409B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106813385A (zh) * 2015-12-01 2017-06-09 南通港华锅炉有限公司 一种热水锅炉

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH382203A (de) * 1961-03-08 1964-09-30 Von Roll Ag Wärmeaustauscher
FR1578895A (de) * 1968-05-02 1969-08-22
DE3347559A1 (de) * 1983-12-30 1985-07-18 Hans Dr.h.c. 3559 Battenberg Vießmann Niedertemperaturheizungskessel, insbesondere fuer mittlere und grosse leistungsbereiche

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106813385A (zh) * 2015-12-01 2017-06-09 南通港华锅炉有限公司 一种热水锅炉

Also Published As

Publication number Publication date
FR2669409A1 (fr) 1992-05-22
EP0487434A1 (de) 1992-05-27
FR2669409B1 (fr) 1993-03-05
DE69107178T2 (de) 1995-09-07
DE69107178D1 (de) 1995-03-16

Similar Documents

Publication Publication Date Title
FR2576404A1 (fr) Echangeur de chaleur et application a un appareil de rechauffage d'un fluide, notamment accumulateur d'eau chaude sanitaire
EP0487434B1 (de) Wärmetauscher für Gaskessel, Herstellungsverfahren dafür und Kessel mit einem solchen Wärmetauscher
FR2912210A1 (fr) Echangeur thermique pour chaudiere, chaudiere equipee d'un tel echangeur et procede de fabrication d'un tel echangeur
FR2975170B1 (fr) Condenseur et appareils equipes d'un tel condenseur.
FR2800856A1 (fr) Chaudiere de chauffage du type vertical
EP0205374A1 (de) Gasbeheizter industrieller Flüssigkeitserhitzer
EP0127881B1 (de) Heisswassererzeuger, insbesondere Zentralheizungskessel für feste Brennstoffe, insbesondere für die Verbrennung von Holzblöcken
EP0456582B1 (de) Brennwertkessel mit Wärmetransportflüssigkeit
FR2475695A1 (fr) Dispositif recuperateur de chaleur pour cheminees
FR3062465A1 (fr) Chaudiere a rendement ameliore.
EP0898115A1 (de) Kessel mit externer dichter Wirbelschicht
FR2468852A1 (fr) Chaudiere, notamment pour installations de chauffage domestique
FR1402699A (fr) Générateur de chaleur notamment pour la production d'eau chaude
FR2627262A1 (fr) Chaudiere verticale pour le chauffage de fluides caloporteurs
FR2677113A1 (fr) Echangeur de chaleur tubulaire a ailettes pour rechauffer un fluide liquide par des gaz chauds.
FR2614402A1 (fr) Chaudiere de chauffage a capacites d'echanges lamellaires
BE883241A (fr) Chaudiere, notamment pour installations de chauffage domestique
CH419520A (fr) Chaudière
FR2655134A1 (fr) Corps de chaudiere de chauffage a fluide caloporteur.
BE377640A (de)
FR2841637A1 (fr) Chaudiere domestique et corps de chauffe pour une telle chaudiere
EP0062573A1 (de) Erhitzer für festen Brennstoff
FR2583858A1 (fr) Chaudiere a combustible solide a haut rendement
FR2529648A1 (fr) Chaudiere a foyer refractaire
FR2559243A1 (fr) Chaudiere de chauffage d'un fluide caloporteur

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE IT

17P Request for examination filed

Effective date: 19930211

17Q First examination report despatched

Effective date: 19930629

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE IT

REF Corresponds to:

Ref document number: 69107178

Country of ref document: DE

Date of ref document: 19950316

ITF It: translation for a ep patent filed

Owner name: JACOBACCI CASETTA & PERANI S.P.A.

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20001114

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020702

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051119