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GB1029894A - Improvements in or relating to safety devices for gas fuel pipes or tubing - Google Patents

Improvements in or relating to safety devices for gas fuel pipes or tubing

Info

Publication number
GB1029894A
GB1029894A GB15505/64A GB1550564A GB1029894A GB 1029894 A GB1029894 A GB 1029894A GB 15505/64 A GB15505/64 A GB 15505/64A GB 1550564 A GB1550564 A GB 1550564A GB 1029894 A GB1029894 A GB 1029894A
Authority
GB
United Kingdom
Prior art keywords
valve
seat
check valve
gas
balls
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.)
Expired
Application number
GB15505/64A
Inventor
Paul Witt
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.)
Tespa AG
Original Assignee
Tespa AG
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 Tespa AG filed Critical Tespa AG
Priority to GB15505/64A priority Critical patent/GB1029894A/en
Publication of GB1029894A publication Critical patent/GB1029894A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C4/00—Flame traps allowing passage of gas but not of flame or explosion wave
    • A62C4/02—Flame traps allowing passage of gas but not of flame or explosion wave in gas-pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
    • F16K17/38—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
    • F16K17/383—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature the valve comprising fusible, softening or meltable elements, e.g. used as link, blocking element, seal, closure plug

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Check Valves (AREA)
  • Safety Valves (AREA)

Abstract

1,029,894. Controlling gas burners. TESPA A.G. April 15, 1964, No. 15505/64. Heading F4T. [Also in Division F2] A safety device for preventing explosions in the gas pipes of burners comprises a flame trap 33 made of sintered metal or glass or glass fibre or synthetic plastic, a pressure relief valve 34 and a back pressure check valve 30 which is arranged to close in both directions of gas flow. The check valve 30 comprises a rubber disc urged by a spring 32 to seat on an upper seat 29 and urged by the gas flow to seat on a lower seat 31. The gas enters the device through an inlet 21 and flows past the check valve, which normally floats in the position shown in Fig. 5, to an outlet 22. The device also has a gas inlet valve comprising a rubber disc 37 pressed by a spring 46 against a seat 36 and adapted to be opened by a bell-crank lever 40 connected to the stem of the valve. The inlet valve is held in open position by balls 44 projecting through holes in a fixed collar 45b and engaging a shoulder on the valve. The balls are held in projected position by a bulbous part 45a on a stem 45 secured to the check valve 30. If a flash-back explosion occurs the check valve 30 is pressed so tightly against its upper seat 29 that the centre of the valve displaces the stem 45 to release the balls 44 and the inlet valve 37 closes. The pressure relief valve 34 opens. If a pipe downstream of the device fractures, the increased gas flow causes the check valve 30 to seat on the lower seat 31; the balls 44 are again released so that the inlet valve again closes. A bleed passage 47 in the lip of the lower seat 31 allows the pressure on both sides of the check valve 30 to equalize so that the valve again opens. In a simple embodiment, Figs. 1-4 (not shown), no gas inlet valve is provided and the pressure relief valve has a spring urged pin which engages the face of the valve when the valve is fully open and prevents it from closing.
GB15505/64A 1964-04-15 1964-04-15 Improvements in or relating to safety devices for gas fuel pipes or tubing Expired GB1029894A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB15505/64A GB1029894A (en) 1964-04-15 1964-04-15 Improvements in or relating to safety devices for gas fuel pipes or tubing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB15505/64A GB1029894A (en) 1964-04-15 1964-04-15 Improvements in or relating to safety devices for gas fuel pipes or tubing

Publications (1)

Publication Number Publication Date
GB1029894A true GB1029894A (en) 1966-05-18

Family

ID=10060318

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15505/64A Expired GB1029894A (en) 1964-04-15 1964-04-15 Improvements in or relating to safety devices for gas fuel pipes or tubing

Country Status (1)

Country Link
GB (1) GB1029894A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2181530A (en) * 1985-09-10 1987-04-23 Butcher Brothers Limited Flashback arrestor
WO2011005875A1 (en) * 2009-07-07 2011-01-13 Firestar Engineering Llc Detonation wave arrestor
US8230672B2 (en) 2006-12-04 2012-07-31 Firestar Engineering, Llc Spark-integrated propellant injector head with flashback barrier
US8230673B2 (en) 2006-12-04 2012-07-31 Firestar Engineering, Llc Rocket engine injectorhead with flashback barrier
US8413419B2 (en) 2008-12-08 2013-04-09 Firestar Engineering, Llc Regeneratively cooled porous media jacket
US8572946B2 (en) 2006-12-04 2013-11-05 Firestar Engineering, Llc Microfluidic flame barrier

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2181530A (en) * 1985-09-10 1987-04-23 Butcher Brothers Limited Flashback arrestor
GB2181530B (en) * 1985-09-10 1989-08-16 Butcher Brothers Limited Flashback arrestor
US8230672B2 (en) 2006-12-04 2012-07-31 Firestar Engineering, Llc Spark-integrated propellant injector head with flashback barrier
US8230673B2 (en) 2006-12-04 2012-07-31 Firestar Engineering, Llc Rocket engine injectorhead with flashback barrier
US8572946B2 (en) 2006-12-04 2013-11-05 Firestar Engineering, Llc Microfluidic flame barrier
US8413419B2 (en) 2008-12-08 2013-04-09 Firestar Engineering, Llc Regeneratively cooled porous media jacket
WO2011005875A1 (en) * 2009-07-07 2011-01-13 Firestar Engineering Llc Detonation wave arrestor
CN102648025A (en) * 2009-07-07 2012-08-22 火星工程有限公司 Detonation wave arrestor
US8858224B2 (en) 2009-07-07 2014-10-14 Firestar Engineering, Llc Detonation wave arrestor

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