JPS5668721A - Safety system for flame detecting apparatus - Google Patents

Safety system for flame detecting apparatus

Info

Publication number
JPS5668721A
JPS5668721A JP14587679A JP14587679A JPS5668721A JP S5668721 A JPS5668721 A JP S5668721A JP 14587679 A JP14587679 A JP 14587679A JP 14587679 A JP14587679 A JP 14587679A JP S5668721 A JPS5668721 A JP S5668721A
Authority
JP
Japan
Prior art keywords
output
circuit
produces
thermocouple
resistances
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
JP14587679A
Other languages
Japanese (ja)
Other versions
JPS6227329B2 (en
Inventor
Isamu Okuda
Hiroshi Horii
Isao Kasai
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP14587679A priority Critical patent/JPS5668721A/en
Publication of JPS5668721A publication Critical patent/JPS5668721A/en
Publication of JPS6227329B2 publication Critical patent/JPS6227329B2/ja
Granted 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

Landscapes

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

Abstract

PURPOSE:To provide a safety system for combustion apparatus, which can detect ignition automatically and with high responsiveness although a thermocouple is used at its detecting end and can be operated in highly stable manner against the influence of humidity and noises produced by an ignitor or external radio waves. CONSTITUTION:An output of a thermocouple 9, which produces a thermo-electromotive force when it is heated by combustion flame, is given to a proportional differentiating circuit C after it is amplified by a predetermined ratio in an amplifying circuit B. The circuit C produces a saturated stable output and an upward or downward gradient output of the thermo-electromotive force, and this output Vs is compared with a set voltage Vd in a comparator 34. According to the result of the above comparison, comparator 34 produces a high level or low level output voltage for driving the load of a relay 39 and others in a driving circuit E. Here, the above proportional differentiating circuit C is composed of resistances 22, 25, 27, transistor 23, capacitor 24 and diodes 26, 28, 30, and its output voltage Vs is given at the junction of resistances 25 and 27.
JP14587679A 1979-11-09 1979-11-09 Safety system for flame detecting apparatus Granted JPS5668721A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14587679A JPS5668721A (en) 1979-11-09 1979-11-09 Safety system for flame detecting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14587679A JPS5668721A (en) 1979-11-09 1979-11-09 Safety system for flame detecting apparatus

Publications (2)

Publication Number Publication Date
JPS5668721A true JPS5668721A (en) 1981-06-09
JPS6227329B2 JPS6227329B2 (en) 1987-06-13

Family

ID=15395082

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14587679A Granted JPS5668721A (en) 1979-11-09 1979-11-09 Safety system for flame detecting apparatus

Country Status (1)

Country Link
JP (1) JPS5668721A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60170550U (en) * 1984-04-20 1985-11-12 株式会社ノーリツ Gas burner combustion control device
JPS63259318A (en) * 1987-04-14 1988-10-26 Mic Kogyo Kk Gas combustion controller
FR2772463A1 (en) * 1997-12-16 1999-06-18 Europ Equip Menager DEVICE FOR ASSISTING THE MANAGEMENT OF THE OPERATION OF A HOME BURNER BY FLAME DETECTION

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5122133A (en) * 1974-08-19 1976-02-21 Matsushita Electric Ind Co Ltd NENSHOANZENSOCHI

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5122133A (en) * 1974-08-19 1976-02-21 Matsushita Electric Ind Co Ltd NENSHOANZENSOCHI

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60170550U (en) * 1984-04-20 1985-11-12 株式会社ノーリツ Gas burner combustion control device
JPH033804Y2 (en) * 1984-04-20 1991-01-31
JPS63259318A (en) * 1987-04-14 1988-10-26 Mic Kogyo Kk Gas combustion controller
JPH0447213B2 (en) * 1987-04-14 1992-08-03 Mitsuku Kogyo Kk
FR2772463A1 (en) * 1997-12-16 1999-06-18 Europ Equip Menager DEVICE FOR ASSISTING THE MANAGEMENT OF THE OPERATION OF A HOME BURNER BY FLAME DETECTION
EP0924467A1 (en) * 1997-12-16 1999-06-23 Compagnie Europeenne Pour L'equipement Menager "Cepem" Device for controlling the functioning of a domestic burner by detecting the flame

Also Published As

Publication number Publication date
JPS6227329B2 (en) 1987-06-13

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