JPS57107473A - Safety device for inflammable gas - Google Patents

Safety device for inflammable gas

Info

Publication number
JPS57107473A
JPS57107473A JP18335280A JP18335280A JPS57107473A JP S57107473 A JPS57107473 A JP S57107473A JP 18335280 A JP18335280 A JP 18335280A JP 18335280 A JP18335280 A JP 18335280A JP S57107473 A JPS57107473 A JP S57107473A
Authority
JP
Japan
Prior art keywords
gas
reverse flow
pressure
piston
check valve
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
JP18335280A
Other languages
Japanese (ja)
Other versions
JPS5942187B2 (en
Inventor
Nobuhiko Imai
Yasuhiko Imai
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP18335280A priority Critical patent/JPS5942187B2/en
Publication of JPS57107473A publication Critical patent/JPS57107473A/en
Publication of JPS5942187B2 publication Critical patent/JPS5942187B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Check Valves (AREA)
  • Gas Burners (AREA)

Abstract

PURPOSE: To provide a means to instantaneously close a gas inlet port and hold a valve in securely closed condition even against the oscillating pressure by utilizing the explosion pressure of a gas when a reverse flow and/or backfire of a gas occurs.
CONSTITUTION: When a reverse flow and/or backfire occurs in a piping, the explosion in the piping rapidly increases the pressure allowing a movable check valve 22 to be pressed against a valve seat 10a of a piston 10 by a spring 26 to close a gas passage 11, and at the same time the said piston is pressed downward by the reverse flow pressure applied to the top of the movable check valve 22 sliding along a cylinder 6 and pressing a main check valve 16 by a pressing member 15 against a valve seat 5 of a gas inlet port 3 while having a piston ring 12 to reach the position of an engaging shoulder 9 of the cylinder 6, said piston ring being expanded by its own resilient force and engaging to the said shoulder 9 thereby securely preventing the reverse flow of the gas.
COPYRIGHT: (C)1982,JPO&Japio
JP18335280A 1980-12-23 1980-12-23 Flammable gas safety equipment Expired JPS5942187B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18335280A JPS5942187B2 (en) 1980-12-23 1980-12-23 Flammable gas safety equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18335280A JPS5942187B2 (en) 1980-12-23 1980-12-23 Flammable gas safety equipment

Publications (2)

Publication Number Publication Date
JPS57107473A true JPS57107473A (en) 1982-07-03
JPS5942187B2 JPS5942187B2 (en) 1984-10-13

Family

ID=16134231

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18335280A Expired JPS5942187B2 (en) 1980-12-23 1980-12-23 Flammable gas safety equipment

Country Status (1)

Country Link
JP (1) JPS5942187B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006513026A (en) * 2003-01-31 2006-04-20 マン、デーヴェーエー、ゲーエムベーハー Jacketed tube reactor for performing catalytic gas phase reaction and method for operating the same
CN100348900C (en) * 2006-01-12 2007-11-14 上海交通大学 Fast explosive and hydraulic actuating device of valve
CN102588160A (en) * 2012-03-06 2012-07-18 华中科技大学 Gas inlet backfire preventer of gas engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006513026A (en) * 2003-01-31 2006-04-20 マン、デーヴェーエー、ゲーエムベーハー Jacketed tube reactor for performing catalytic gas phase reaction and method for operating the same
CN100348900C (en) * 2006-01-12 2007-11-14 上海交通大学 Fast explosive and hydraulic actuating device of valve
CN102588160A (en) * 2012-03-06 2012-07-18 华中科技大学 Gas inlet backfire preventer of gas engine

Also Published As

Publication number Publication date
JPS5942187B2 (en) 1984-10-13

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