EP0736733B1 - Verwendung einer Lufteinspritzvorrichtung für Gebläsebrenner zum Reinigen eines Gebläses - Google Patents

Verwendung einer Lufteinspritzvorrichtung für Gebläsebrenner zum Reinigen eines Gebläses Download PDF

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Publication number
EP0736733B1
EP0736733B1 EP96420112A EP96420112A EP0736733B1 EP 0736733 B1 EP0736733 B1 EP 0736733B1 EP 96420112 A EP96420112 A EP 96420112A EP 96420112 A EP96420112 A EP 96420112A EP 0736733 B1 EP0736733 B1 EP 0736733B1
Authority
EP
European Patent Office
Prior art keywords
air
fan
injection device
burner
diaphragm
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
EP96420112A
Other languages
English (en)
French (fr)
Other versions
EP0736733A3 (de
EP0736733A2 (de
Inventor
René Aldeguer
Thierry Serré
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.)
Morice et Cie Traitogaz Ets
Original Assignee
Morice et Cie Traitogaz Ets
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 Morice et Cie Traitogaz Ets filed Critical Morice et Cie Traitogaz Ets
Publication of EP0736733A2 publication Critical patent/EP0736733A2/de
Publication of EP0736733A3 publication Critical patent/EP0736733A3/de
Application granted granted Critical
Publication of EP0736733B1 publication Critical patent/EP0736733B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F23D14/36—Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air in which the compressor and burner form a single unit

Definitions

  • the present invention relates to a use an air injection device for a gas burner, supply air.
  • This invention relates to all burners with gas, supply air, and more particularly burners incorporated in gas cooking appliances and gas boilers.
  • a ventilator which draws air, taken outside, and which injects this air into a more or less long circuit, leading to the burner (s). Fuel gas is also injected into this circuit.
  • the present invention aims to remedy these disadvantages, by providing a use of a air injection device for supply air burner, which while retaining a particularly structure simple and very compact, takes advantage of a partial air discharge effect towards the fan, allowing cleaning of the fan turbine as well than cooling the surrounding components.
  • the invention essentially has for object use of an air injection device for gas burners, supply air, comprising a fan whose air outlet is connected to an air intake from a duct belonging to a circuit leading to at least one gas burner, between the air outlet of the fan and the air inlet of said conduit being interposed a diaphragm seal of low thickness, relatively insulating material rigid, the central region of which is pierced by at least one calibrated opening allowing passage to air flow blown to direct by the aforementioned circuit towards the or the burners, while all around its opening (s), the diaphragm seal has a solid surface reflecting part of the air flow to the fan, so to ensure the permanent cleaning of the turbine of the fan, while cooling the components surrounding.
  • the diaphragm seal is inserted, by its periphery, between a first flange delimiting the orifice fan air outlet, and a second flange delimiting the air inlet of the aforementioned duct.
  • a diaphragm seal configuration adapted which is mounted directly at the outlet of the fan, and which does not occupy more space than a simple seal, the presence of which is of all mandatory at this location.
  • the central opening of the diaphragm seal is calibrated to allow flow to pass necessary and sufficient air to the burner (s), taking account for all gases with which the burner (s) concerned are usable in practice.
  • the part of the air flow which does not pass the central opening of the diaphragm seal is forced towards the fan impeller, the diaphragm seal being located close to the turbine, which ensures cleaning permanent turbine, avoiding fouling thereof.
  • the repressed air also creates an atmosphere turbulent all around the fan, which cools effectively sensitive components located in the environment of the fan and giving off heat, for example: thermostat, pressure switch, solenoid valves, blocks of regulation.
  • a fryer comprises a tank 1, heated by means of gas burners 2, supply air, arranged in two series on either side of the lower part of the tank 1.
  • the appliance includes a fuel gas inlet 9, supplying a first circuit 10 leading to two main gas injection points 11 and 12 located respectively towards the two ends of the nurse 7, and a second circuit 13 leading to an injection point additional gas 14, used for starting, located at mid-length of the nurse 7.
  • An electronic control unit 15, associated with a general switch 16 is electrically connected to: a temperature control thermostat 17 and a safety thermostat 18 immersed in tank 1, spark plugs 19 and monitoring plugs 20 associated with the burners 2, a pressure switch 21 connected to the nurse 7, two solenoid valves 22 and 23 placed on the first gas injection circuit 10, and another solenoid valve 24 placed on the second injection circuit gas 13.
  • Figure 2 shows the spatial arrangement real of some of the previously named components. This figure shows in particular that the three solenoid valves 22, 23 and 24 are located in the vicinity of fan 3.
  • the air outlet of this fan 3 is presented as a substantially shaped outlet 25 rectangular, delimited by a first flange 26 substantially rectangular.
  • the air inlet, located in the nurse midline 7, presents as a substantially rectangular lateral opening 27, delimited by a second substantially rectangular flange 28, located in correspondence with the first flange 26 - see in particular Figures 3 and 4.
  • a seal diaphragm 29 which has an external shape substantially rectangular corresponding, and that is made of a relatively rigid insulating material.
  • the periphery of the diaphragm seal 29 is tightened, so watertight, between the two flanges 26 and 28 assembled at screw means 30, provided for example at their four angles.
  • the diaphragm seal 29 In its central region, as shown more particularly Figure 5, the diaphragm seal 29 has a calibrated opening 31, of shape rectangular. At its four angles, this joint 29 is still drilled with holes 32 through which the screws 30 pass.
  • the calibrated central opening 31 of the seal diaphragm 29 gives free passage to an air flow soufflé D1, which runs through the nurse 7 then the two ducts 8 to be directed to the burners 2.
  • the air injection device is more particularly applicable to fryers and other gas cooking appliances for use professional, which must be used without interruption for long periods of time.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Supply (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)
  • Frying-Pans Or Fryers (AREA)
  • Direct Air Heating By Heater Or Combustion Gas (AREA)
  • Feeding And Controlling Fuel (AREA)

Claims (4)

  1. Verwendung, zur permanenten Reinigung der Turbine (5) eines Ventilators (3), einer Lufteinblasevorrichtung für einen Gasbrenner mit Gebläseluft, umfassend den Ventilator (3), dessen Luftauslaßöffnung (25) mit einem Lufteinlaß (27) eines Leitungsrohrs (7) verbunden ist, das zu einer Leitung (6) gehört, die zu zumindest einem Gasbrenner (2) führt, wobei zwischen dem Luftauslaß (25) des Ventilators (3) und dem Lufteinlaß (27) des genannten Leitungsrohrs (7) eine Membrandichtung (29) aus relativ starrem, wärmeisolierendem Material von geringer Dicke vorgesehen ist, deren mittlerer Bereich mit zumindest einer kalibrierten Öffnung (31) versehen ist, die die Gebläseluftmenge (D1) durchläßt, die durch die obengenannte Leitung (6) zu dem oder den Brennern (2) zu richten ist, während die Membrandichtung (29) rund um ihre Öffnung bzw. Öffnungen (31) eine volle Fläche (33) aufweist, die einen Teil der Luftmenge (D2) zum Ventilator (3) zurücksendet, so daß die permanente Reinigung der Turbine (5) des Ventilators (3) gewährleistet wird und gleichzeitig die umgebenden Bauteile (22, 23, 24) abgekühlt werden.
  2. Verwendung einer Lufteinblasevorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, daß die Membrandichtung (29) mit ihrem Umfang eingefügt ist zwischen einem ersten Flansch (26), der die Luftausstoßöffnung (25) des Ventilators (3) begrenzt, und einem zweiten Flansch (28), der den Lufteinlaß (27) des obengenannten Leitungsrohrs (7) begrenzt.
  3. Verwendung einer Lufteinblasevorrichtung gemäß Anspruch 2, dadurch gekennzeichnet, daß die Membrandichtung (29) eine annähernd rechteckige äußere Form aufweist und eingefügt ist zwischen einem annähernd rechtekkigen ersten Flansch (26), der die Ausstoßöffnung (25) des Ventilators (3) begrenzt, und einem annähernd rechteckigen zweiten Flansch (28), der den seitlichen Lufteinlaß (27) eines Verteilers (7) begrenzt, der den Ausgangspunkt der Leitung (6) bildet, die zu zumindest einem Brenner (2) führt.
  4. Verwendung einer Lufteinblasevorrichtung nach einem der Ansprüche 1 bis 3, gekennzeichnet durch ihre Anwendung für ein Gaskochgerät, wie z.B. eine Friteuse.
EP96420112A 1995-04-07 1996-04-03 Verwendung einer Lufteinspritzvorrichtung für Gebläsebrenner zum Reinigen eines Gebläses Expired - Lifetime EP0736733B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9504432A FR2732753B1 (fr) 1995-04-07 1995-04-07 Dispositif d'injection d'air pour bruleur a air souffle
FR9504432 1995-04-07

Publications (3)

Publication Number Publication Date
EP0736733A2 EP0736733A2 (de) 1996-10-09
EP0736733A3 EP0736733A3 (de) 1997-04-23
EP0736733B1 true EP0736733B1 (de) 1999-07-14

Family

ID=9478069

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96420112A Expired - Lifetime EP0736733B1 (de) 1995-04-07 1996-04-03 Verwendung einer Lufteinspritzvorrichtung für Gebläsebrenner zum Reinigen eines Gebläses

Country Status (4)

Country Link
EP (1) EP0736733B1 (de)
AT (1) ATE182206T1 (de)
DE (1) DE69603213D1 (de)
FR (1) FR2732753B1 (de)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4383820A (en) * 1980-10-10 1983-05-17 Technology Application Services Corporation Fuel gas burner and method of producing a short flame
US5171144A (en) * 1991-09-09 1992-12-15 A. O. Smith Corporation Pressurized air seal for combustion chamber

Also Published As

Publication number Publication date
EP0736733A3 (de) 1997-04-23
ATE182206T1 (de) 1999-07-15
DE69603213D1 (de) 1999-08-19
FR2732753A1 (fr) 1996-10-11
FR2732753B1 (fr) 1998-05-22
EP0736733A2 (de) 1996-10-09

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