EP0733860A2 - Appareil de contrÔle pour brûleur d'allumage - Google Patents

Appareil de contrÔle pour brûleur d'allumage Download PDF

Info

Publication number
EP0733860A2
EP0733860A2 EP96301921A EP96301921A EP0733860A2 EP 0733860 A2 EP0733860 A2 EP 0733860A2 EP 96301921 A EP96301921 A EP 96301921A EP 96301921 A EP96301921 A EP 96301921A EP 0733860 A2 EP0733860 A2 EP 0733860A2
Authority
EP
European Patent Office
Prior art keywords
gas mixture
pilot light
oxygen
depletion
air inlet
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
EP96301921A
Other languages
German (de)
English (en)
Other versions
EP0733860B1 (fr
EP0733860A3 (fr
Inventor
Robert Charmer
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.)
Robinson Willey Ltd
Original Assignee
Robinson Willey Ltd
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 Robinson Willey Ltd filed Critical Robinson Willey Ltd
Publication of EP0733860A2 publication Critical patent/EP0733860A2/fr
Publication of EP0733860A3 publication Critical patent/EP0733860A3/fr
Application granted granted Critical
Publication of EP0733860B1 publication Critical patent/EP0733860B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q9/00—Pilot flame igniters
    • F23Q9/02—Pilot flame igniters without interlock with main fuel supply
    • F23Q9/04—Pilot flame igniters without interlock with main fuel supply for upright burners, e.g. gas-cooker burners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q23/00—Testing of ignition installations
    • F23Q23/08—Testing of components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/12—Burner simulation or checking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/12—Burner simulation or checking
    • F23N2227/16—Checking components, e.g. electronic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2229/00—Flame sensors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2231/00—Fail safe
    • F23N2231/10—Fail safe for component failures

Definitions

  • the present invention relates to a testing device for a gas pilot light and more particularly to a portable device for testing the performance of an oxygen-depletion cut-out system of a gas fire or other gas appliance.
  • ODS oxygen-depletion sensing
  • Oxygen is supplied to said flames via an air inlet aperture in the pilot gas supply line and the pilot light device and the air inlet aperture are designed such that in normal conditions, the pilot flames are stable but such that should the oxygen level being supplied to the air inlet aperture drop below the requisite level, the flame becomes unstable and the flame acting on the thermocouple ceases to act on such with the result that the main gas valve supplying the gas fire or like installation shuts off the gas supply to the main burner.
  • Such oxygen-depletion sensing pilot lights ODS pilot lights
  • ODS pilot lights are known and comprise an important safety device and it is a testing device for such with which the present invention is concerned.
  • the present invention is concerned with providing a method and apparatus for testing or assessing the performance of an oxygen depletion pilot light to ensure that it is still functioning correctly after the device has been in use some time.
  • a portable device for testing the performance of an oxygen-depletion-sensing pilot light jet comprising a reservoir for containing a gas mixture which has an oxygen content just below the level at which the oxygen-depletion-sensing pilot light should safely operate, a gas mixture flow control means in communication or communicable with gas mixture applicator means; said applicator means in a first arrangement permitting said gas mixture to flow from said flow control means to atmosphere at ambient pressure and said applicator means including a supply duct locatable adjacent and/or over the air inlet aperture of an oxygen-depletion-sensing pilot light jet to supply said gas mixture thereto at ambient atmospheric pressure, or in a second arrangement said applicator means comprising a housing locatable to surround an oxygen-depletion-sensing pilot light jet and the air inlet aperture therefor and preferably also the ignition means for the pilot light, to enable supply said gas mixture to the air inlet aperture and to provide said gas mixture as a localised ambient environment to the pilot light.
  • the free end of the supply duct will be so shaped as to be closely locatable against the surface surrounding the air inlet aperture of the pilot light and may possibly have sealing means which may be provided in different replaceable forms as an adaptor to different surfaces. Attachment means may also be provided for releasably holding said supply duct over said air inlet aperture.
  • the applicator means preferably has a main duct or chimney-like member for venting the gas mixture to atmosphere.
  • the applicator means is preferably in the form of a main tubular member with a normally lower-most inlet aperture in communication via the gas mixture flow control means (valve) of the gas mixture reservoir and having said supply duct extending therefrom and preferably at right angles and preferably from a normally lower region adjacent but spaced from the valve to enable supply at atmospheric pressure. It is important that the gas mixture of the testing device should not be applied to the air inlet aperture of the pilot light jet at other than ambient atmospheric pressure or substantially ambient pressure since an inaccurate test might otherwise result.
  • the applicator means such comprises a housing which encloses the whole of the ODS pilot light including the air inlet therefor to provide an ambient atmosphere of said gas mixture for the whole of the pilot light and its flame and preferably the ignition device although an opening may be provided in the housing to permit the pilot light to ignite the adjacent burner in normal manner although preferably the supply to the burner is closed so that only the pilot light is lit.
  • At least one wall portion of the housing will preferably be removable to permit location of the housing over the pilot jet. It is expected that for each range of fire, an especially shaped housing will have to be provided and contoured such as to enable the housing to locate on and around the pilot and its ignition device and such as to prevent or minimize any inflow of ambient air.
  • a method of testing the performance of an oxygen depletion sensing pilot light jet of a gas fire or other gas appliance insitue comprises applying an oxygen depleted gas mixture to at least the air inlet of said pilot jet and when the pilot light is lit, and determining whether the pilot flame ceases to act upon the thermocouple of the appliance so as to cut off the main gas supply.
  • the housing will be located around at least the pilot jet with the inlet in the housing for the gas mixture initially being open to atmosphere so that the pilot flame becomes stable once the adjacent metals become heated.
  • the reservoir containing the depleted oxygen gas mixture is then connected to the inlet or communicates therewith such that said gas mixture enters the housing either by being drawn in by the flame burning and/or by being under slight pressure.
  • a testing device is intended for use with an oxygen depletion sensing gas pilot nozzle or jet 1 (such as sold under the trade mark "SIT") which in use has a gas outlet duct and flame 2 directed to the main gas burners (not shown) of the gas fire (not shown) and a thermocouple, gas outlet duct and flame 3 directed to play the flame against a thermocouple 6 with said pilot light being ignitable by a piezo-electric device 7 in known manner.
  • an oxygen depletion sensing gas pilot nozzle or jet 1 such as sold under the trade mark "SIT”
  • the gas is supplied to the pilot jet 1 via duct 5 and an air inlet aperture 4 is provided in the pilot light jet 1 which jet is designed in known manner such that under normal conditions of operation with the requisite amount of oxygen, the flames from apertures 2 and 3 are just on the limit of stability and such that when the level of oxygen entering through aperture 4 drops below the safe level, flame 3 becomes unstable and ceases to burn and play against thermocouple 6 with the result that the thermocouple acts via an electromagnetic valve (not shown) to cut off the gas supply to the fire in known manner.
  • a testing device 8 comprises a pressurized or pressurizable gas bottle 9 forming a reservoir for a gas mixture which has an oxygen content at least just below the level of oxygen required for safe operation of the gas fire.
  • the gas bottle 9 is secured by threaded means 10 to a duct leading via a valve 11 to an applicator means 12.
  • the applicator means 12 comprises a main chimney or tubular body 13 with its normally upper end 13' open to atmosphere and with the tubular body 13 being of a sufficiently large size as to enable gas exiting from the reservoir bottle 9 to be at ambient atmospheric pressure.
  • An applicator or supply duct 14 extends laterally of the main duct 13 and is locatable over the air inlet aperture 4 of the pilot jet 1 and the whole device is designed such that the test gas flowing from bottle 9 is at atmospheric or substantially atmospheric pressure as it enters the air inlet aperture 4 so as to give a proper test result.
  • the pressure of gas being permitted to flow through valve 11 and the dimensioning of the main duct means 13 and supply duct 14 should be dimensioned to enable gas mixture at or substantially at atmospheric pressure to be applied to the aperture 4.
  • Suitable sealing means 15 such as in the form of an annular resilient ring may be provided at the edge of the free end of supply duct 14 to ensure proper sealing against the surfaces surrounding inlet aperture 4.
  • the end of duct 14 may be appropriately shaped to fit against said surrounding surfaces.
  • duct 14 may have different seating pieces securable thereon as adaptors to different feed pipes for different pilot jets depending on the fire being tested and to ensure a proper sealing/seating.
  • releasable securement means such as a clip, may be provided for releasably securing the supply duct 14 in position over the aperture 4.
  • an open collar or other open channel means may be provided to surround or partially surround the pilot jet feed pipe in the region of inlet aperture 4 to provide said mixture thereto.
  • pilot flame will be first lit and allowed to become stable by the heating up of adjacent surfaces before the gas mixture is allowed to be drawn in.
  • a portable box-like housing 16 having a transparent viewing window 17 of suitable heat resistant glass to enable the pilot jets 2 and 3 to be viewed.
  • the electrode 7 of the piezo-electric device and the thermocouple 6 have been omitted for the sake of clarity but such will be encompassed within the housing.
  • the reservoir 9 for said oxygen depleted gas mixture which contains oxygen just below the level at which the oxygen-depletion-sensing pilot light should operate, is connected via pipe 18 and an inlet aperture 18' in the housing base to the interior of the housing 16.
  • Control valve 11 is also provided to control the gas mixture flow.
  • An outlet aperture 19 is provided in the rear of the housing 16 (or the top) to vent the gas mixture from reservoir 9 to atmosphere at atmospheric pressure. It will be appreciated that the housing 16 also surrounds the air inlet 4. By providing the housing to surround all the ignition and nozzle and flame area a more accurate representation of oxygen depletion is created for the test purposes.
  • each gas fire may be constructed to include a side wall part and preferably releasable retaining means for the housing 16 to facilitate the mounting and testing operation.
  • the method of the present invention may be performed by an operator inhaling and simply blowing air gently through a duct such as a straw or tube, to the region of the inlet 4.
  • any suitable gas mixture may be provided to represent oxygen depleted air.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Regulation And Control Of Combustion (AREA)
EP96301921A 1995-03-21 1996-03-20 Appareil de contrôle pour brûleur d'allumage Expired - Lifetime EP0733860B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9505632A GB2299193B (en) 1995-03-21 1995-03-21 Testing device for gas pilot light
GB9505632 1995-03-21

Publications (3)

Publication Number Publication Date
EP0733860A2 true EP0733860A2 (fr) 1996-09-25
EP0733860A3 EP0733860A3 (fr) 1998-04-22
EP0733860B1 EP0733860B1 (fr) 2002-06-05

Family

ID=10771532

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96301921A Expired - Lifetime EP0733860B1 (fr) 1995-03-21 1996-03-20 Appareil de contrôle pour brûleur d'allumage

Country Status (5)

Country Link
EP (1) EP0733860B1 (fr)
DE (1) DE69621504T2 (fr)
ES (1) ES2177726T3 (fr)
GB (2) GB2299193B (fr)
PT (1) PT733860E (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0997688A3 (fr) * 1998-10-30 2003-03-26 FAGOR, S.Coop Brûleur de flamme pilote avec un capteur d' atmosphère

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9618745D0 (en) * 1996-09-07 1996-10-23 Hepworth Heating Ltd Gas appliances
WO1998011389A1 (fr) * 1996-09-13 1998-03-19 Robinson Willey Limited Dispositif d'essai d'une veilleuse a gaz

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4972152A (en) * 1989-08-06 1990-11-20 Finn Edwin R Apparatus and method for testing ignition modules and components of gas burners
GB2298039A (en) * 1995-02-15 1996-08-21 Baxi Heating Ltd Safety device for heating appliance

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3896422A (en) * 1969-08-08 1975-07-22 Stanley J Kowalsky Alarm system operated by ambient conditions
GB8601200D0 (en) * 1986-01-18 1986-02-19 Robinson Willey Ltd Gas-fired heating appliance
GB8709691D0 (en) * 1987-04-24 1987-05-28 Ti Gas Spares Ltd Flame failure devices

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4972152A (en) * 1989-08-06 1990-11-20 Finn Edwin R Apparatus and method for testing ignition modules and components of gas burners
GB2298039A (en) * 1995-02-15 1996-08-21 Baxi Heating Ltd Safety device for heating appliance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0997688A3 (fr) * 1998-10-30 2003-03-26 FAGOR, S.Coop Brûleur de flamme pilote avec un capteur d' atmosphère

Also Published As

Publication number Publication date
ES2177726T3 (es) 2002-12-16
DE69621504D1 (de) 2002-07-11
EP0733860B1 (fr) 2002-06-05
GB2299193A (en) 1996-09-25
GB9505632D0 (en) 1995-05-10
GB2299193B (en) 1999-09-22
GB2299194A (en) 1996-09-25
EP0733860A3 (fr) 1998-04-22
PT733860E (pt) 2002-10-31
DE69621504T2 (de) 2003-02-13
GB9605844D0 (en) 1996-05-22
GB2299194B (en) 1999-09-22

Similar Documents

Publication Publication Date Title
US6468072B2 (en) Wind guard for open flame gas lantern
US5052367A (en) Ventilating heater
CA2988129A1 (fr) Appareil de chauffage portatif dote d'un capteur environnemental
EP0733860B1 (fr) Appareil de contrôle pour brûleur d'allumage
MXPA02008850A (es) Aparato de gas con quemador en la parte baja, equipado con medios de seguridad, y calentador de agua al ponerse en aplicacion.
JP2578768Y2 (ja) ガスライター
US6634320B2 (en) Flame atmosphere analyzer and a water-heating device including the analyzer
US5721385A (en) Testing device for gas pilot light
CN105992620B (zh) 消防训练装置
EP1232365B1 (fr) Cuisiniere a gaz portative
US6470876B1 (en) Catalytic heater assembly
KR950007021B1 (ko) 강제연소식 급탕기
CA2315533C (fr) Appareil de chauffage
CA1082938A (fr) Lanterne munie d'un prechauffeur au kerosene
US6074200A (en) Burner apparatus having an air dam and mixer tube
US3628903A (en) Afterburner
US5971744A (en) Gas burner tool for purging a gas supply pipe
US2515518A (en) Igniting device for gasoline
JP2002538402A (ja) 酸素減少センサ
GB2319106A (en) Testing an ODS burner
US20110104621A1 (en) Draught-resistant fireplace pilot
KR0120571Y1 (ko) 가스기구의 점화촉진장치
CN217612643U (zh) 一种材料燃烧灭火试验装置
JPS6125564Y2 (fr)
JPH087244Y2 (ja) ガスライター

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: A2

Designated state(s): DE ES FR IT NL PT

RBV Designated contracting states (corrected)

Designated state(s): DE ES FR IT NL PT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE ES FR IT NL PT

17P Request for examination filed

Effective date: 19980831

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 20010613

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR IT NL PT

REF Corresponds to:

Ref document number: 69621504

Country of ref document: DE

Date of ref document: 20020711

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20020816

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2177726

Country of ref document: ES

Kind code of ref document: T3

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

Effective date: 20030306

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 20050322

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20050329

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20050331

Year of fee payment: 10

Ref country code: FR

Payment date: 20050331

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20050405

Year of fee payment: 10

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

Ref country code: ES

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

Effective date: 20060321

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20060331

Year of fee payment: 11

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

Ref country code: PT

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

Effective date: 20060920

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

Ref country code: NL

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

Effective date: 20061001

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: 20061003

REG Reference to a national code

Ref country code: PT

Ref legal event code: MM4A

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

Effective date: 20060920

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20061001

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20061130

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20060321

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

Ref country code: FR

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

Effective date: 20060331

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: 20070320