EP0429371B1 - Heizkörper für Kessel für Wärmeträgerflüssigkeit - Google Patents

Heizkörper für Kessel für Wärmeträgerflüssigkeit Download PDF

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Publication number
EP0429371B1
EP0429371B1 EP90403316A EP90403316A EP0429371B1 EP 0429371 B1 EP0429371 B1 EP 0429371B1 EP 90403316 A EP90403316 A EP 90403316A EP 90403316 A EP90403316 A EP 90403316A EP 0429371 B1 EP0429371 B1 EP 0429371B1
Authority
EP
European Patent Office
Prior art keywords
fluid
jacket
shell according
boiler shell
burner
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
EP90403316A
Other languages
English (en)
French (fr)
Other versions
EP0429371A1 (de
Inventor
André Kerautret
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.)
Bosch Thermotechnologie SAS
Original Assignee
Geminox SAS
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 Geminox SAS filed Critical Geminox SAS
Priority to AT90403316T priority Critical patent/ATE101706T1/de
Publication of EP0429371A1 publication Critical patent/EP0429371A1/de
Application granted granted Critical
Publication of EP0429371B1 publication Critical patent/EP0429371B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • 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
    • F24H1/263—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 with a dry-wall 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
    • 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
    • F24H9/00—Details
    • F24H9/12—Arrangements for connecting heaters to circulation pipes
    • F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters

Definitions

  • the invention relates to a body of a heating fluid heating boiler, arranged horizontally and at least partially enveloped by a jacket for circulation of said fluid, generally water.
  • the combustion gases are more or less saturated with water vapor depending on the excess air in the flame and also depending on the hydrogen content of the fuels used.
  • This vapor causes the well-known phenomenon of condensation, also known as the dew phenomenon, as soon as the gases thus saturated meet a wall whose temperature is below a certain temperature (around 55 ° C).
  • a boiler thus equipped makes it possible to envisage eliminating the mixing valve, so that the boiler regulation system can act directly and only on the burner.
  • the invention provides a boiler body of the aforementioned type, the fluid circulation jacket being provided with a departure for the heated fluid and with an inlet for the cooled return fluid, while one of the ends of the body is arranged to receive at least one burner and the other end is provided with a discharge of combustion gases as for example in patent EP-A-0 331 141, the boiler body according to the invention being remarkable in that the arrival of the return fluid is in the form of a perforated distribution tube which is arranged in the upper part of the fluid jacket and which plunges thereon from the side opposite to the burner, extending towards the side of the latter, the outlet of the heated fluid being provided in the lower part of the fluid jacket and preferably on the side opposite to the burner, while the inner wall (1) of said fluid jacket (3) is provided on the opposite side to the burner (4) a closed peripheral envelope (13) arranged at a short distance from said wall (1), and that between the latter and said envelope is formed a volume for a fluid, so as to form a thin sheet of fluid projecting in the shirt (3).
  • the distribution tube is rectilinear and arranged over substantially the entire length of the fluid jacket, while it is at least partially closed at its end and has a plurality of orifices distributed over its length.
  • the orifices of the distribution tube are formed in the upper half of the latter, that is to say in the half facing the outer wall of the fluid jacket, for example in pairs.
  • the orifices of the distribution tube are closer to the side of the burner to be more numerous. Indeed, it is obviously towards the burner that the thermal load is the greatest.
  • an orifice is provided towards the end of the distribution tube, and it is arranged so as to open into the lower half of it, it that is to say in the half facing the inner wall of the fluid jacket.
  • a deflector is provided between the orifice for discharging the impurities and the inner wall of the fluid jacket.
  • the thin layer of fluid formed in the jacket by the aforementioned peripheral envelope makes it possible to increase the temperature of the exchange wall, in the areas where the thermal loads are the lowest.
  • the temperature of the combustion gases varies significantly between the heat source on the burner side and the exhaust side of the gases, so that it is advantageous to heat the wall of the latter side.
  • longitudinal partitions are provided between the inner wall of the fluid jacket and the peripheral envelope to reduce and / or eliminate any convective movement of the fluid which is between said wall and said envelope.
  • the sheet thus formed could be waterproof, it may also be advantageous to fill it at the time of filling the boiler itself, in which case said envelope has at least one filling orifice and at least one degassing orifice. In the case where there are also longitudinal partitions, these then have openings for filling the volume forming the sheet.
  • the interior wall of the fluid jacket can be provided with a heat exchange surface with solid fins on its face facing the very interior of the body, that is to say towards the combustion gases.
  • the drawings show a boiler body 1 in the form of a cylinder of revolution arranged horizontally.
  • the cylinder forming the body 1 is surrounded by a second cylinder 2 coaxial with the first so as to form between them a closed volume which constitutes a jacket 3 in which water (or another heat transfer fluid) circulates.
  • the body 1 constitutes a combustion chamber and it is intended to receive at one of its ends, here the left end with respect to FIG. 1, a burner 4 while at its other end, an evacuation is provided 5 of the combustion gases.
  • the body 1 forms the internal wall of the water jacket 3 and the cylinder 2 the external wall while the internal face of the body 1 is provided with an exchange surface with solid fins 6 as well shown in FIGS. 2 to 5.
  • This fin surface 6 makes it possible to ensure a rapid rise in temperature, the heat then being transmitted by conduction to the water which circulates in the jacket 3.
  • the body 1 is further provided with a pot 7 (Figure 1) to better channel and laminate the combustion gases between the fins.
  • the water to be heated that is to say the water returning from the heating devices (radiators or other) arrives in the water jacket 3 in the upper part of it as shown in the drawings, that is to say in the zone which is by hottest natural convection, while the departure of the heated water is provided in the lower part.
  • the inlet tube 8 extends from the side opposite the burner towards the latter over the entire length of the jacket 3, its free end being closed as shown in FIG. 1.
  • the tube 8 also has perforations 10 for distributing water, over substantially its entire length, these being closer to the side of the burner so as to be more numerous on the warmer side (FIGS. 1 and 4) .
  • the perforations 10 are formed in pairs, as shown in Figures 2 to 5, in the upper half of the tube 8 ( Figures 1 to 5) so as to form jets towards the outer wall 2 of the jacket 3 for the reasons already mentioned above.
  • the body 1 constituting the inner wall of the jacket 3 is provided with a closed peripheral envelope 13 (FIGS. 1 and 3 to 5), which is arranged at a short distance from said wall so to form a volume for a fluid, such as water, thereby constituting a thin sheet projecting into the jacket 3 as shown in FIGS. 1 and 4.
  • a closed peripheral envelope 13 FIGS. 1 and 3 to 5
  • longitudinal partitions such as 14a and 14b ( Figures 4 and 5), in order to reduce and / or eliminate any convective movement of the water contained in said volume.
  • the envelope 13 is completely closed to constitute a sealed circuit independent of that of the jacket 3.
  • the casing 13 is then provided with at least one filling orifice such as 15a, 15b, 15c (figure 1) in the lower part and less water a degassing orifice such as 16a and 16b in the upper part ( Figures 3 and 5).
  • the longitudinal partitions 14a, 14b have, of course, also openings to allow the circulation of water during filling, such as 17a, 17b ( Figures 4 and 5).

Landscapes

  • 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)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Central Heating Systems (AREA)
  • Gas Burners (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Claims (12)

  1. Heizkesselmantel für Wärmeträgerflüssigkeit, welcher horizontal angeordnet und wenigstens teilweise von einem Kühlmantel (3) für die Zirkulation der Flüssigkeit umgeben ist, welcher mit einem Auslauf (9) für die erwärmte Flüssigkeit und einem Zulauf (8) für die abgekühlte Rücklaufflüssigkeit versehen ist, wobei eines der Enden des Mantels derart ausgestaltet ist, daß es wenigstens einen Brenner (4) aufnehmen kann, und das andere Ende mit einem Rauchgasabzug (5) versehen ist, dadurch gekennzeichnet ist, daß der Zulauf für die Rücklauf-Flüssigkeit als perforiertes Verteilerrohr (8) ausgebildet ist, das im oberen Teil des Kühlmantels (3) angeordnet ist und in diesen von der dem Brenner entgegengesetzten Seite eintaucht und sich in Richtung auf die Seite des Brenners erstreckt, wobei der Auslauf für die erwärmte Flüssigkeit im unteren Teil des Kühlmantels (3) vorgesehen ist, während die innere Wand (1) des Kühlmantels (3) an der dem Brenner (4) entgegengesetzten Seite mit einer geschlossenen Umfangshülle (13) versehen ist, die in geringer Entfernung von der Wand (1) angebracht ist, und daß zwischen letzterer und der Hülle ein Volumen für eine Flüssigkeit vorgesehen ist derart, daß ein dünner vorstehender Flüssigkeitsgürtel im Kühlmantel (3) gebildet wird.
  2. Kesselmantel gemäß Anspruch 1, dadurch gekennzeichnet, daß sich der Auslauf (9) der erwärmten Flüssigkeit auf der dem Brenner (4) entgegengesetzten Seite befindet.
  3. Kesselmantel gemäß einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß das Verteilerrohr (8) geradlinig und im wesentlichen über die gesamten Länge des Kühlmantels (3) angeordnet ist, während es an seinem Ende wenigstens teilweise verschlossen ist und mehrere Öffnungen (10) aufweist, die über seine Länge verteilt sind.
  4. Kesselmantel gemäß Anspruch 3, dadurch gekennzeichnet, daß die Öffnungen (10) des Verteilerrohres (8) in der oberen Hälfte der letzteren vorgesehen sind, d. h., in der gegen die Außenwand (2) des Kühlmantels (3) gerichteten Hälfte.
  5. Kesselmantel gemäß Anspruch 4, dadurch gekennzeichnet, daß die Öffnungen (10) der Verteilerrohres (8) paarweise angeordnet sind.
  6. Kesselmantel nach einem der Ansprüche 4 und 5, dadurch gekennzeichnet, daß die Öffnungen (10) des Verteilerrohres (8) an der dem Brenner zugekehrten Seite näher einander angeordnet sind, um eine größere Anzahl zu erhalten.
  7. Kesselmantel gemäß einem der Ansprüche 2 - 6, dadurch gekennzeichnet, daß eine Öffnung (11) in Richtung auf das Ende des Verteilerrohres (8) vorgesehen und derart angebracht ist, daß es in der unteren Hälfte desselben mündet, d. h. in der auf die Innenwand (1) des Kühlmantels (3) gerichteten Hälfte, um das Austragen möglicher in der Rücklauf-Flüssigkeit befindlicher Verunreinigungen zu ermöglichen.
  8. Kesselmantel gemäß Anspruch 7, dadurch gekennzeichnet, daß ein Deflektor (12) zwischen der Öffnung (11) zum Austragen von Verunreinigungen und der Innenwand (1) des Kühlmantels (3) vorgesehen ist.
  9. Kesselmantel gemäß einem der Anspruche 1 - 8, dadurch gekennzeichnet, daß zwischen der Innenwand (1) des Kühlmantels (3) und der Umfangshülle (13) längsverlaufende Trennwände (14a, 14b) vorgesehen sind, um jegliche Konvektionsbewegung der Flüssigkeit, die sich zwischen der Wand (1) und der Hülle (13) befindet, zu reduzieren und/oder zu unterdrücken.
  10. Kesselmantel gemäß einem der Ansprüche 1 - 9, dadurch gekennzeichnet, daß die Umfangshülle (13) wenigstens eine Füllöffnung (15a, 15b, 15c) und wenigstens eine Entgasungsöffnung (16a, 16b) aufweist.
  11. Kesselmantel gemäß den Ansprüchen 9 und 10, dadurch gekennzeichnet, daß die Trennwände (14a, 14b) Öffnungen (17a, 17b) zum Auffüllen des den Gürtel bildenden Volumens aufweisen.
  12. Kesselmantel gemäß einem der Ansprüche 1 - 11, dadurch gekennzeichnet, daß die Innenwand (1) des Kühlmantels (3) an ihrer dem Inneren des Kesselmantels, d. h. in Richtung auf die Rauchgase, zugekehrten Seite mit einer thermischen Austauchfläche mit Vollrippen (6) versehen ist.
EP90403316A 1989-11-24 1990-11-23 Heizkörper für Kessel für Wärmeträgerflüssigkeit Expired - Lifetime EP0429371B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90403316T ATE101706T1 (de) 1989-11-24 1990-11-23 Heizkoerper fuer kessel fuer waermetraegerfluessigkeit.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8915463 1989-11-24
FR8915463A FR2655134B1 (fr) 1989-11-24 1989-11-24 Corps de chaudiere de chauffage a fluide caloporteur.

Publications (2)

Publication Number Publication Date
EP0429371A1 EP0429371A1 (de) 1991-05-29
EP0429371B1 true EP0429371B1 (de) 1994-02-16

Family

ID=9387742

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90403316A Expired - Lifetime EP0429371B1 (de) 1989-11-24 1990-11-23 Heizkörper für Kessel für Wärmeträgerflüssigkeit

Country Status (5)

Country Link
EP (1) EP0429371B1 (de)
AT (1) ATE101706T1 (de)
DE (1) DE69006692T2 (de)
ES (1) ES2051489T3 (de)
FR (1) FR2655134B1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX9602124A (es) * 1996-06-03 1997-04-30 Francisco Alvarado Barrientos Mejoras en sistema de recuperacion de calor aplicadas a un calentador de agua.
FR2762075B1 (fr) * 1997-04-11 1999-05-28 Dietrich Thermique Chaudiere a injection basse d'eau de retour dans le corps de chauffe
CN101922792B (zh) * 2010-09-10 2012-02-29 无锡锡州机械有限公司 圆筒形热交换器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL66749C (de) * 1900-01-01
CH186211A (de) * 1936-03-06 1936-09-15 Moeri & Cie Warmwasserheizkessel.
GB620218A (en) * 1947-01-09 1949-03-22 Radiation Ltd Improvements relating to gas heated water heaters
FR1285073A (fr) * 1961-03-29 1962-02-16 Dispositif pour l'introduction de l'eau de retour des installations de chauffage à eau chaude dans les chaudières de chauffage

Also Published As

Publication number Publication date
EP0429371A1 (de) 1991-05-29
DE69006692D1 (de) 1994-03-24
ES2051489T3 (es) 1994-06-16
ATE101706T1 (de) 1994-03-15
FR2655134B1 (fr) 1992-02-14
DE69006692T2 (de) 1994-05-26
FR2655134A1 (fr) 1991-05-31

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