EP0052055A1 - Heizkessel mit abgeschlossener Brennkammer und zylindrischem Wärmetauscher - Google Patents

Heizkessel mit abgeschlossener Brennkammer und zylindrischem Wärmetauscher Download PDF

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Publication number
EP0052055A1
EP0052055A1 EP81401769A EP81401769A EP0052055A1 EP 0052055 A1 EP0052055 A1 EP 0052055A1 EP 81401769 A EP81401769 A EP 81401769A EP 81401769 A EP81401769 A EP 81401769A EP 0052055 A1 EP0052055 A1 EP 0052055A1
Authority
EP
European Patent Office
Prior art keywords
air
box
chamber
orifice
gas
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.)
Granted
Application number
EP81401769A
Other languages
English (en)
French (fr)
Other versions
EP0052055B1 (de
Inventor
Jean-Claude Charron
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saunier Duval Eau Chaude Chauffage SDECC SA
Original Assignee
Saunier Duval Eau Chaude Chauffage SDECC SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR8023787A external-priority patent/FR2493968B1/fr
Priority claimed from FR8119454A external-priority patent/FR2514869B2/fr
Application filed by Saunier Duval Eau Chaude Chauffage SDECC SA filed Critical Saunier Duval Eau Chaude Chauffage SDECC SA
Priority to AT81401769T priority Critical patent/ATE8705T1/de
Publication of EP0052055A1 publication Critical patent/EP0052055A1/de
Application granted granted Critical
Publication of EP0052055B1 publication Critical patent/EP0052055B1/de
Expired legal-status Critical Current

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Classifications

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

Definitions

  • the invention relates to a gas-tight boiler of the cylindrical exchanger type, a sheet of water tubes surrounding a combustion chamber containing a blast air burner.
  • condensing boiler In a known form of boiler of this type called condensing boiler, the combustion gases emitted by the radial burner pass through the water tubes and are collected in a sealed cylindrical shell which serves as an envelope for the exchanger and which collects the combustion products then flowing through an exhaust duct connected to this shell.
  • the air-gas mixture is supplied to the burner from a mixing chamber supplied with gas by an injector, a fan being interposed between this chamber and the burner.
  • This supply assembly is usually placed under the burner while the evacuation is ensured by the conduit disposed at the upper part of the exchanger, engaged on the sealed cylindrical shell.
  • This arrangement leads to embodiments which are difficult to fit into a tight enclosure of limited size due to the existence on one side of a supply assembly with tubing and intake chamber, and on the other of a housing d 'evacuation.
  • the invention relates to a single distribution box for the admission of combustion air coaxially with the evacuation of the gases of combustion, box which is applied to the sealed shell and which also serves as a support for the mixing chamber thus arranged vertically along the exchanger.
  • the air box has a flat oblong shape, which receives the combustion air through an orifice concentric with the flue gas discharge tube and discharges it through a smaller diameter orifice provided on the bottom of the case on the other side and it fits on the shell sealing enveloping the combustion chamber, of which it constitutes the cover.
  • the gas injection takes place horizontally at the base of an extension of the vertical air inlet chamber below the level of the exchanger, opposite a venturi arranged horizontally opening out at the base of this extension.
  • FIGS. 1 and 3 shows an exchanger delimited by a cylindrical shell 1 which rests on a lower base 2 pierced with orifices suitable for the passage of conduits 3 and 4 for the arrival and departure of water, and the manifold 5 for admitting the gas mixture to the radial burner 6 disposed in the center of the exchanger.
  • a cylindrical shell 1 which rests on a lower base 2 pierced with orifices suitable for the passage of conduits 3 and 4 for the arrival and departure of water, and the manifold 5 for admitting the gas mixture to the radial burner 6 disposed in the center of the exchanger.
  • the water tubes 7 which form a cylindrical sheet all around the burner 6, their shape and their spacing being determined to present significant exchange surfaces with the combustion gases. Water circulates in the tubes of the sheet from a lower distributor ring 8 to an upper distributor ring 9 and vice versa, thanks to a set of baffles not shown located in the rings.
  • a single distribution box or air box 11 shown at the top of FIGS. 1 and 3 and in FIG. 2, has a flat oblong shape and fits both on the upper edge of the shell 1, but also on the upper edge an air inlet chamber 12 disposed parallel to the shell bearing on an extension of the lower base 2, and therefore forming a rigid block with the exchanger.
  • This adaptation of the air box 11 on the exchanger and the air inlet chamber is obviously done in a sealed manner thanks to seals not shown, at the level of the large diameter of the box 11 which covers the shell. cylindrical 1 and the small diameter of the box which covers the air inlet chamber 12.
  • the lower face 13 of the air box 11 forms at the same time, the cover of the combustion chamber by covering the shell 1, -and the spacer which maintains the upper part of the air inlet chamber because it is provided with a lateral orifice 14 which adapts to the upper orifice of this chamber.
  • Said lower face 13 acting as a cover to the combustion chamber is pierced with an orifice 15, in line with the burner 6, on which the tube 16 for discharging the burnt gases comes to fit.
  • This is arranged in a known manner inside and coaxially with another tube 17 of larger diameter for the admission of fresh air.
  • This assembly advantageously bent as shown in FIGS. 1 and 3, adapts to the upper cover 18 of the air box 11 to which it is tightly connected by a clip 19.
  • the upper cover is provided with an orifice 20 of suitable diameter which is superimposed on the orifice 15.
  • the air is therefore admitted into the air box 11 through the annular space delimited between the orifice 20 and the exhaust gas discharge pipe 16, and enters the air inlet chamber 12 through the orifice 14.
  • the air inlet chamber 12 contains a venturi. This causes in the chamber 12 a suction effect which promotes mixing with the gas injected by the gas inlet tube 21 which passes tightly through the cover 18 and opens into the mixing chamber through the orifice 14 .
  • the air inlet chamber 12 does not contain a venturi but is provided with an extension 22, the lower part of which is connected by a venturi 23 to the fan 10; the neck 24 of the venturi is located substantially at this extension 22.
  • a gas injector 26 disposed horizontally at the height of the neck 24 of the venturi allows the injection of gas and its mixture with air in the venturi 23. The injector is supplied by the gas inlet tube 25, leading to the lower part of the device.
  • the invention is not limited to the embodiment shown but also encompasses all the constructive variants.

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)
  • Gas Burners (AREA)
  • Housings, Intake/Discharge, And Installation Of Fluid Heaters (AREA)
EP81401769A 1980-11-07 1981-11-06 Heizkessel mit abgeschlossener Brennkammer und zylindrischem Wärmetauscher Expired EP0052055B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81401769T ATE8705T1 (de) 1980-11-07 1981-11-06 Heizkessel mit abgeschlossener brennkammer und zylindrischem waermetauscher.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR8023787A FR2493968B1 (fr) 1980-11-07 1980-11-07 Chaudiere etanche a echangeur cylindrique
FR8023787 1980-11-07
FR8119454A FR2514869B2 (fr) 1981-10-16 1981-10-16 Chaudiere etanche a echangeur cylindrique
FR8119454 1981-10-16

Publications (2)

Publication Number Publication Date
EP0052055A1 true EP0052055A1 (de) 1982-05-19
EP0052055B1 EP0052055B1 (de) 1984-07-25

Family

ID=26222067

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81401769A Expired EP0052055B1 (de) 1980-11-07 1981-11-06 Heizkessel mit abgeschlossener Brennkammer und zylindrischem Wärmetauscher

Country Status (4)

Country Link
EP (1) EP0052055B1 (de)
JP (1) JPS6367113B2 (de)
DE (1) DE3165113D1 (de)
WO (1) WO1982001764A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2534005A1 (fr) * 1982-10-05 1984-04-06 Sdecc Agencement d'une chaudiere etanche a gaz a tirage force
EP0581663A1 (de) * 1992-07-30 1994-02-02 Saunier Duval Eau Chaude Chauffage - Sdecc S.A. Wärmetauscher mit ringförmig angeordneten Wasserrohren, insbesondere für Brennwertkessel
WO1999043993A1 (en) * 1998-02-24 1999-09-02 Centre Des Technologies Du Gaz Naturel External gas-fired water/glycol heater
ITAN20130237A1 (it) * 2013-12-10 2015-06-11 Ariston Thermo Spa Coperchio per caldaie a condensazione

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04119561U (ja) * 1991-04-12 1992-10-26 ナシヨナル住宅産業株式会社 対面キツチン

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE571538C (de) * 1930-08-19 1933-03-01 Junkers & Co Fluessigkeitserhitzer
DE2100344A1 (de) * 1970-01-08 1971-07-15 Glow-Worm Ltd., Belper, Derby (Großbritannien) Wärmetauscher und unter Verwendung derartiger Wärmetauscher hergestellte Wassererhitzer
US3823704A (en) * 1973-02-14 1974-07-16 Rheem International Power burner application to fin tube heat exchanger
FR2238123A1 (de) * 1973-07-17 1975-02-14 Haller Meurer Werke Ag
FR2452059A1 (fr) * 1979-03-21 1980-10-17 Saunier Duval Dispositif d'evacuation des gaz brules et d'admission d'air frais pour appareils etanches a gaz

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE571538C (de) * 1930-08-19 1933-03-01 Junkers & Co Fluessigkeitserhitzer
DE2100344A1 (de) * 1970-01-08 1971-07-15 Glow-Worm Ltd., Belper, Derby (Großbritannien) Wärmetauscher und unter Verwendung derartiger Wärmetauscher hergestellte Wassererhitzer
US3823704A (en) * 1973-02-14 1974-07-16 Rheem International Power burner application to fin tube heat exchanger
FR2238123A1 (de) * 1973-07-17 1975-02-14 Haller Meurer Werke Ag
FR2452059A1 (fr) * 1979-03-21 1980-10-17 Saunier Duval Dispositif d'evacuation des gaz brules et d'admission d'air frais pour appareils etanches a gaz

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2534005A1 (fr) * 1982-10-05 1984-04-06 Sdecc Agencement d'une chaudiere etanche a gaz a tirage force
EP0105805A1 (de) * 1982-10-05 1984-04-18 SAUNIER DUVAL EAU CHAUDE CHAUFFAGE S.D.E.C.C. - Société anonyme Gasdichter Kessel mit Zwangsabzug
EP0581663A1 (de) * 1992-07-30 1994-02-02 Saunier Duval Eau Chaude Chauffage - Sdecc S.A. Wärmetauscher mit ringförmig angeordneten Wasserrohren, insbesondere für Brennwertkessel
FR2694388A1 (fr) * 1992-07-30 1994-02-04 Sdecc Echangeur de chaleur à nappe de tubes d'eau notamment pour chaudière à condensation.
WO1999043993A1 (en) * 1998-02-24 1999-09-02 Centre Des Technologies Du Gaz Naturel External gas-fired water/glycol heater
ITAN20130237A1 (it) * 2013-12-10 2015-06-11 Ariston Thermo Spa Coperchio per caldaie a condensazione
WO2015087119A1 (en) * 2013-12-10 2015-06-18 Ariston Thermo S.P.A. Cover for condensing boilers

Also Published As

Publication number Publication date
EP0052055B1 (de) 1984-07-25
WO1982001764A1 (fr) 1982-05-27
DE3165113D1 (en) 1984-08-30
JPS57501972A (de) 1982-11-04
JPS6367113B2 (de) 1988-12-23

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