JPS55140036A - Protective device for gas leakage - Google Patents

Protective device for gas leakage

Info

Publication number
JPS55140036A
JPS55140036A JP4816579A JP4816579A JPS55140036A JP S55140036 A JPS55140036 A JP S55140036A JP 4816579 A JP4816579 A JP 4816579A JP 4816579 A JP4816579 A JP 4816579A JP S55140036 A JPS55140036 A JP S55140036A
Authority
JP
Japan
Prior art keywords
gas
flow rate
gas flow
detected
detector
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
JP4816579A
Other languages
Japanese (ja)
Inventor
Hachiro Handa
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.)
SEIHOKU SANGYO KK
Original Assignee
SEIHOKU SANGYO KK
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 SEIHOKU SANGYO KK filed Critical SEIHOKU SANGYO KK
Priority to JP4816579A priority Critical patent/JPS55140036A/en
Publication of JPS55140036A publication Critical patent/JPS55140036A/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
    • F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2231/00—Fail safe
    • F23N2231/18—Detecting fluid leaks

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)

Abstract

PURPOSE:To improve reliability of detection of gas leakage as well as detecting the extingushing of flame while gas cock is open by a method wherein the gas flow rate in the upstream and the total amount of the gas flow rates in gas appliance instrument are compared. CONSTITUTION:A gas passage 1 consists of a fixed piping 1a and flexible hoses 1b, which are connected with gas appliances F1-Fn. A gas flow rate detector 3 is provided on a fixed piping 1a in order to detect the gas flow rate by an electric current value, while a gas flow rate detector 6 is provided on each part of the gas appliances F1-Fn. When the detected value by this flow rate detector 3 and the total amount of the detected values by other flow rate detectors 6 are compared by a control unit 10 and the difference between both detected values exceeds a specified value, supply of current to an electromagnetic valve 4 is stopped and supply of gas is suspended. It is also possible to detected the extinguishing of flame while a gas cock is open because a combustion detector 7 has been provided.
JP4816579A 1979-04-19 1979-04-19 Protective device for gas leakage Pending JPS55140036A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4816579A JPS55140036A (en) 1979-04-19 1979-04-19 Protective device for gas leakage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4816579A JPS55140036A (en) 1979-04-19 1979-04-19 Protective device for gas leakage

Publications (1)

Publication Number Publication Date
JPS55140036A true JPS55140036A (en) 1980-11-01

Family

ID=12795764

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4816579A Pending JPS55140036A (en) 1979-04-19 1979-04-19 Protective device for gas leakage

Country Status (1)

Country Link
JP (1) JPS55140036A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57157932A (en) * 1981-03-25 1982-09-29 Nec Corp Gas leakage alarm
JPH09184745A (en) * 1995-12-28 1997-07-15 Agency Of Ind Science & Technol Gas leakage detection system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57157932A (en) * 1981-03-25 1982-09-29 Nec Corp Gas leakage alarm
JPH09184745A (en) * 1995-12-28 1997-07-15 Agency Of Ind Science & Technol Gas leakage detection system
US5866803A (en) * 1995-12-28 1999-02-02 Agency Of Industrial Science And Technology Gas leakage detection system

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