EP0432020A1 - Gasdichter Kessel mit Zwangsabzug unter Verwendung eines Thermokontakts - Google Patents

Gasdichter Kessel mit Zwangsabzug unter Verwendung eines Thermokontakts Download PDF

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Publication number
EP0432020A1
EP0432020A1 EP90403388A EP90403388A EP0432020A1 EP 0432020 A1 EP0432020 A1 EP 0432020A1 EP 90403388 A EP90403388 A EP 90403388A EP 90403388 A EP90403388 A EP 90403388A EP 0432020 A1 EP0432020 A1 EP 0432020A1
Authority
EP
European Patent Office
Prior art keywords
fan
heating
boiler
burner
stopping
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
EP90403388A
Other languages
English (en)
French (fr)
Other versions
EP0432020B1 (de
Inventor
André De Lannoy
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
Application filed by Saunier Duval Eau Chaude Chauffage SDECC SA filed Critical Saunier Duval Eau Chaude Chauffage SDECC SA
Publication of EP0432020A1 publication Critical patent/EP0432020A1/de
Application granted granted Critical
Publication of EP0432020B1 publication Critical patent/EP0432020B1/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
    • F24H9/00—Details
    • F24H9/0005—Details for water heaters
    • F24H9/0036—Dispositions against condensation of combustion products

Definitions

  • the invention lies in the technical field of gas tight boilers with forced draft and relates more precisely to the particular arrangement of a thermal switch intended to avoid the problems of condensation at the level of its exchanger and of the instability of the pilot light due to pollution of the combustion chamber.
  • the invention aims to solve this problem by looking for intermittent operation of the exhaust fan. For this it appeared necessary to guarantee the operation of the fan at low speed when the heating body is cold and at a temperature below the dew point temperature of the combustion products, and on the contrary to keep the said fan stopped for higher temperatures, in areas where the losses when the boiler is shut down would be too great.
  • This intermittent operation is obtained by a judicious choice and positioning of a thermal switch, object of the invention.
  • a main object of the present invention consists of a sealed gas boiler with forced draft in which a sealed enclosure contains a burner and its pilot light, a heating body, a hood for evacuating burnt gases and a extraction fan, and which comprises a solenoid valve for admitting gas to the burner connected to a circuit breaker box, possibly a reversing valve distributing the primary water either to a long circuit during heating operation, or to a short circuit during drawing of domestic water with a circulation pump interposed on the return pipe to the exchanger, boiler in which a thermoswitch placed on the return pipe of the heating water is mounted in series with a half-speed resistance on a power supply phase of the exhaust fan.
  • the thermal switch is placed upstream of the reversing valve on the return pipe of the heating circuit.
  • the invention also relates to the choice of the set temperature of the thermal switch for the intermittent operation of the exhaust fan when the burner is at a standstill and thus avoid inadvertent locking out of the appliance.
  • the device shown consists of a sealed enclosure 1 at its upper part, which contains a burner 2, a fin block 3 constituting the heating body or exchanger, a hood 4 for collecting the burnt gases equipped with a fan d extraction 5, and a duct 6 for evacuating the combustion products to the outside. Coaxial with this duct, the sealed enclosure is crossed by a pipe 7 for fresh air intake.
  • an electrovalve 8 for admitting gas to the burner supplied by a gas inlet pipe 9, via a circuit breaker box 10 which also ensures the electrical powering of the boiler.
  • the closing member 12 distributes the primary hot water leaving the exchanger through the conduit 13, or by a long circuit to the heating flow 14 with return through the conduit 15, or to a short circuit 16, a circulation pump 17 being interposed on the conduit 18 returning to the exchanger.
  • the domestic water circuit supplied by the inlet tube 19 supplies water to the draw-off points via the domestic water departure tube 20.
  • the exhaust fan 5 is connected to the electrical terminals of the circuit breaker box 10, one of the phases being supplied in series via a half-speed resistor 21 of the extractor and a thermal switch 22 which is arranged on the return pipe 15 of the heating water upstream of the reversing valve 11, a thermal switch which is intended to avoid the problems of condensation at the exchanger.
  • thermoswitch 22 on the heating return pipe 15 upstream of the reversing valve 11, where there is the lowest temperature of the heating circuit loop, makes it possible to choose a closest set temperature that of the dew point and to minimize losses when the boiler is shut down.

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)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Regulation And Control Of Combustion (AREA)
EP19900403388 1989-12-04 1990-11-29 Gasdichter Kessel mit Zwangsabzug unter Verwendung eines Thermokontakts Expired - Lifetime EP0432020B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8915958 1989-12-04
FR8915958A FR2655410B1 (fr) 1989-12-04 1989-12-04 Chaudiere etanche a gaz a tirage force utilisant un thermocontact anti-condensation.

Publications (2)

Publication Number Publication Date
EP0432020A1 true EP0432020A1 (de) 1991-06-12
EP0432020B1 EP0432020B1 (de) 1993-02-17

Family

ID=9388095

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900403388 Expired - Lifetime EP0432020B1 (de) 1989-12-04 1990-11-29 Gasdichter Kessel mit Zwangsabzug unter Verwendung eines Thermokontakts

Country Status (4)

Country Link
EP (1) EP0432020B1 (de)
DE (1) DE69000932T2 (de)
ES (1) ES2038871T3 (de)
FR (1) FR2655410B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111780400A (zh) * 2020-08-17 2020-10-16 优艾特仪表科技成都有限公司 一种气电混合壁挂炉及其工作方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0011568A1 (de) * 1978-11-15 1980-05-28 SAUNIER DUVAL EAU CHAUDE CHAUFFAGE S.D.E.C.C. - Société anonyme Verbesserung von luftdichten Haushaltsgasapparaten mit erzwungenem Zug
DE3204656A1 (de) * 1982-02-10 1983-08-18 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Brennstoffbeheizte waermequelle
NL8800313A (nl) * 1988-02-09 1989-09-01 Wetering Gemeenschappelijk Bez Verwarmingsketel.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0011568A1 (de) * 1978-11-15 1980-05-28 SAUNIER DUVAL EAU CHAUDE CHAUFFAGE S.D.E.C.C. - Société anonyme Verbesserung von luftdichten Haushaltsgasapparaten mit erzwungenem Zug
DE3204656A1 (de) * 1982-02-10 1983-08-18 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Brennstoffbeheizte waermequelle
NL8800313A (nl) * 1988-02-09 1989-09-01 Wetering Gemeenschappelijk Bez Verwarmingsketel.

Also Published As

Publication number Publication date
DE69000932D1 (de) 1993-03-25
DE69000932T2 (de) 1993-06-03
ES2038871T3 (es) 1993-08-01
FR2655410A1 (fr) 1991-06-07
FR2655410B1 (fr) 1992-04-03
EP0432020B1 (de) 1993-02-17

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