EP0100758A3 - A safety device for gas heating apparatus - Google Patents

A safety device for gas heating apparatus Download PDF

Info

Publication number
EP0100758A3
EP0100758A3 EP83830161A EP83830161A EP0100758A3 EP 0100758 A3 EP0100758 A3 EP 0100758A3 EP 83830161 A EP83830161 A EP 83830161A EP 83830161 A EP83830161 A EP 83830161A EP 0100758 A3 EP0100758 A3 EP 0100758A3
Authority
EP
European Patent Office
Prior art keywords
safety device
heating apparatus
gas
temperature
gas heating
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.)
Withdrawn
Application number
EP83830161A
Other languages
German (de)
French (fr)
Other versions
EP0100758A2 (en
Inventor
Pierluigi De' Stefani
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.)
Officine Di Pernumia Di Giancarlo De' Stefani & C Sas
Original Assignee
Officine Di Pernumia Di Giancarlo De' Stefani & C 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
Priority claimed from IT22721/82A external-priority patent/IT1152316B/en
Priority claimed from IT24234/82A external-priority patent/IT1153019B/en
Application filed by Officine Di Pernumia Di Giancarlo De' Stefani & C Sas filed Critical Officine Di Pernumia Di Giancarlo De' Stefani & C Sas
Publication of EP0100758A2 publication Critical patent/EP0100758A2/en
Publication of EP0100758A3 publication Critical patent/EP0100758A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/10—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples
    • F23N5/102—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/003—Systems for controlling combustion using detectors sensitive to combustion gas properties
    • F23N5/006—Systems for controlling combustion using detectors sensitive to combustion gas properties the detector being sensitive to oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q9/00—Pilot flame igniters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2223/00—Signal processing; Details thereof
    • F23N2223/16—Measuring bridge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/22—Pilot burners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/36—Spark ignition, e.g. by means of a high voltage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2229/00—Flame sensors
    • F23N2229/02—Pilot flame sensors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/14—Fuel valves electromagnetically operated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/10—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/14—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermo-sensitive resistors

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Combustion (AREA)

Abstract

A safety device for gas heating apparatus, is provided which is responsive to a reduction in the oxygen content in the environment in which the apparatus is located, to close a main solenoid valve (3) controlling the gas supply.
The device includes a temperature transducer the tem­ perature sensitive element (13) of which is fixed to the outside of the wall (16) of a pilot burner tube (2) to detect its temperature. In dependence on the detected temperature, the transducer generates a signal which, when the pilot flame burns in a first position (A) in the pilot burner tube (2), corresponding to normal environmental conditions, main­ tains the gas-supply solenoid valve (5) open and which on the other hand causes the latter to close when the pilot flame burns in a second position (B) as a result of its displacement due to a lowering of the oxygen content in the environment.
EP83830161A 1982-08-03 1983-08-03 A safety device for gas heating apparatus Withdrawn EP0100758A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IT2272182 1982-08-03
IT22721/82A IT1152316B (en) 1982-08-03 1982-08-03 SAFETY DEVICE FOR GAS HEATING APPLIANCES
IT24234/82A IT1153019B (en) 1982-11-12 1982-11-12 Safety device for gas burning equipment
IT2423482 1982-11-12

Publications (2)

Publication Number Publication Date
EP0100758A2 EP0100758A2 (en) 1984-02-15
EP0100758A3 true EP0100758A3 (en) 1984-06-06

Family

ID=26328248

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83830161A Withdrawn EP0100758A3 (en) 1982-08-03 1983-08-03 A safety device for gas heating apparatus

Country Status (2)

Country Link
EP (1) EP0100758A3 (en)
ES (1) ES523432A0 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2613041A1 (en) * 1987-03-24 1988-09-30 Op Srl Safety device for gas-fired heating appliances
NZ270528A (en) * 1995-02-20 1998-10-28 John Stuart Fleming Control of liquid fuelled heater: temperature sensor senses output of pilot burner and controls fuel supply to primary burner
US6339645B2 (en) 1998-03-06 2002-01-15 Telefonaktiebolaget Lm Ericsson (Publ) Pseudo-random sequence generator and associated method
ES1041207Y (en) 1998-10-30 1999-10-16 Fagor S Coop PILOT FLAME BURNER WITH ATMOSPHERIC DETECTOR.
JP2002538402A (en) * 1999-02-26 2002-11-12 ロバートショー コントロールス カンパニー Oxygen reduction sensor
IT1310192B1 (en) * 1999-03-19 2002-02-11 Worgas Bruciatori Srl METHOD AND MEANS FOR THE SAFETY CONTROL OF BURNERS.
US20020160325A1 (en) * 2001-04-26 2002-10-31 David Deng Gas pilot system and method having improved oxygen level detection capability and gas fueled device including the same
FR2829566A1 (en) * 2001-09-10 2003-03-14 Sourdillon Sa Gas burner equipment for water heater has pilot light control with air inlet orifice connected to tube with free orifice under burner and pilot flame temperature detector coupled to gas burner supply cut off valve
FR2829564A1 (en) * 2001-09-10 2003-03-14 Sourdillon Sa GAS APPLIANCE WITH LOWER PART BURNER, EQUIPPED WITH SAFETY MEANS, AND WATER HEATER USING THE SAME
FR2829565B1 (en) * 2001-09-10 2005-08-19 Sourdillon Sa GAS APPLIANCE WITH BURNER PART LOW, EQUIPPED WITH SAFETY MEANS, AND WATER HEATER WHILE APPLYING
ES2287436T3 (en) * 2002-11-13 2007-12-16 Coprecitec, S.L. THERMOELECTRIC GENERATOR GROUP WITH A PILOT BURNER.

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2430887A (en) * 1943-09-25 1947-11-18 Gen Controls Co Thermocouple for pilot burners
FR1182023A (en) * 1956-12-05 1959-06-22 Robertshaw Fulton Controls Co Pilot burner and its thermocouple
FR1237754A (en) * 1959-06-08 1960-08-05 Kromschroeder Ag G Safety device in case of lack of gas
US3295585A (en) * 1965-07-12 1967-01-03 American Gas Ass Apparatus for sensing the composition of gases, and gas burner system employing same
GB1145077A (en) * 1965-04-19 1969-03-12 Honeywell Inc Improvements in or relating to burner control apparatus
FR2028564A1 (en) * 1969-01-18 1970-10-09 Marcoerqueaga Iriondo
GB2021253A (en) * 1978-05-22 1979-11-28 Straitz J F Pilot burners for flare stacks
GB2081905A (en) * 1980-07-01 1982-02-24 Mitsubishi Electric Corp Oxygen density detecting device in a combuster

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2430887A (en) * 1943-09-25 1947-11-18 Gen Controls Co Thermocouple for pilot burners
FR1182023A (en) * 1956-12-05 1959-06-22 Robertshaw Fulton Controls Co Pilot burner and its thermocouple
FR1237754A (en) * 1959-06-08 1960-08-05 Kromschroeder Ag G Safety device in case of lack of gas
GB1145077A (en) * 1965-04-19 1969-03-12 Honeywell Inc Improvements in or relating to burner control apparatus
US3295585A (en) * 1965-07-12 1967-01-03 American Gas Ass Apparatus for sensing the composition of gases, and gas burner system employing same
FR2028564A1 (en) * 1969-01-18 1970-10-09 Marcoerqueaga Iriondo
GB2021253A (en) * 1978-05-22 1979-11-28 Straitz J F Pilot burners for flare stacks
GB2081905A (en) * 1980-07-01 1982-02-24 Mitsubishi Electric Corp Oxygen density detecting device in a combuster

Also Published As

Publication number Publication date
ES8405127A1 (en) 1984-06-01
EP0100758A2 (en) 1984-02-15
ES523432A0 (en) 1984-06-01

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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

Designated state(s): AT BE CH DE FR GB LI LU NL SE

PUAL Search report despatched

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RHK1 Main classification (correction)

Ipc: F23Q 9/00

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB LI LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19850207

RIN1 Information on inventor provided before grant (corrected)

Inventor name: DE' STEFANI, PIERLUIGI