JPS57107473A - Safety device for inflammable gas - Google Patents
Safety device for inflammable gasInfo
- 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
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
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)
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 |
-
1980
- 1980-12-23 JP JP18335280A patent/JPS5942187B2/en not_active Expired
Cited By (3)
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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