JPS54140235A - Combustion safety device control method - Google Patents

Combustion safety device control method

Info

Publication number
JPS54140235A
JPS54140235A JP4769378A JP4769378A JPS54140235A JP S54140235 A JPS54140235 A JP S54140235A JP 4769378 A JP4769378 A JP 4769378A JP 4769378 A JP4769378 A JP 4769378A JP S54140235 A JPS54140235 A JP S54140235A
Authority
JP
Japan
Prior art keywords
output
gas
comparator
signal
sensor
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.)
Pending
Application number
JP4769378A
Other languages
Japanese (ja)
Inventor
Yasumasa Okada
Kenichi Saito
Minoru Komori
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP4769378A priority Critical patent/JPS54140235A/en
Publication of JPS54140235A publication Critical patent/JPS54140235A/en
Pending 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
    • F23N5/003—Systems for controlling combustion using detectors sensitive to combustion gas properties

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)
  • Ventilation (AREA)

Abstract

PURPOSE:To prevent people from carbon monoxide gas poisoning by conducting open-and-close control of a gas valve on the basis of the theoretical product of a gas-sensor-trouble-detecting signal and signals detecting a thermocouple and a gas sensor. CONSTITUTION:An output of a gas sensor 17 is sent to comparators 14 through 16 which compare the output with a set value, and the output controls ON and OFF of transistors 30 through 32 via AND IC 25 through 27, and then the output also controls relays 28 of fans 33, an alarm 29, a safety valve 1 and an electromagnet 5. AND IC 27 is supplied with an output from a comparator 24 which compares outputs of comparators 15 and 16 with an output of a thermocouple 23, a high concentration signal from the comparator 15 indicating that concentration of carbon monoxide gas became 200 ppm or above, a signal from the comparator 16 indicating that the gas sensor is in trouble and a flame-put-out signal from the comparator 24. And a safety valve 1 is to be shut off by turning the transistor 32 ON by one of these signals.
JP4769378A 1978-04-24 1978-04-24 Combustion safety device control method Pending JPS54140235A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4769378A JPS54140235A (en) 1978-04-24 1978-04-24 Combustion safety device control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4769378A JPS54140235A (en) 1978-04-24 1978-04-24 Combustion safety device control method

Publications (1)

Publication Number Publication Date
JPS54140235A true JPS54140235A (en) 1979-10-31

Family

ID=12782357

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4769378A Pending JPS54140235A (en) 1978-04-24 1978-04-24 Combustion safety device control method

Country Status (1)

Country Link
JP (1) JPS54140235A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5941699A (en) * 1997-05-08 1999-08-24 Mr. Heater, Inc. Shutoff system for gas fired appliances
JP2010164214A (en) * 2009-01-13 2010-07-29 Osaka Gas Co Ltd Open type combustion device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5941699A (en) * 1997-05-08 1999-08-24 Mr. Heater, Inc. Shutoff system for gas fired appliances
JP2010164214A (en) * 2009-01-13 2010-07-29 Osaka Gas Co Ltd Open type combustion device

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