GB692712A - Method of and apparatus for testing combustible gas - Google Patents

Method of and apparatus for testing combustible gas

Info

Publication number
GB692712A
GB692712A GB950150A GB950150A GB692712A GB 692712 A GB692712 A GB 692712A GB 950150 A GB950150 A GB 950150A GB 950150 A GB950150 A GB 950150A GB 692712 A GB692712 A GB 692712A
Authority
GB
United Kingdom
Prior art keywords
explosion
air
gas
pumps
explosion chamber
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
GB950150A
Inventor
Leonard Silver
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.)
North Thames Gas Board
Original Assignee
North Thames Gas Board
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 North Thames Gas Board filed Critical North Thames Gas Board
Priority to GB950150A priority Critical patent/GB692712A/en
Publication of GB692712A publication Critical patent/GB692712A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/50—Investigating or analyzing materials by the use of thermal means by investigating flash-point; by investigating explosibility
    • G01N25/54—Investigating or analyzing materials by the use of thermal means by investigating flash-point; by investigating explosibility by determining explosibility

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

<PICT:0692712/III/1> The approach to explosibility of a combustible gas, due to the presence of oxygen or air therein, is tested by adding to the combustible gas a predetermined proportion of air and leading a sample of the resulting mixture into an explosion chamber, and subjecting the charge when stationary in the explosion chamber to the action of an ignition device. Any resulting explosion may be used to switch off an electrostatic precipitator used in purification of the gas. As shown, pumps 5, 10 operated by a coupled power drive 21 through adjustable eccentrics 18, 19, deliver gas and air respectively via a flame trap 14 to explosion chamber 15 where the mixture is subjected to a spark between electrodes 24. An explosion raises cap 26 and opens switch 31 in the control circuit of the electrostatic precipitator. A flexible diaphragm may replace the cap 26. Pumps giving a continuous flow may be used in place of the pumps 5, 10, in which case intermittent supply to the explosion chamber is effected by a diversion valve operated by timing gear. In an alternative arrangement, Fig. 2 (not shown), a constant sub-atmospheric pressure is maintained on the delivery side of a rotary pump by means of a governor-regulated valve in the gas supply line, and air is admitted through a calibrated orifice plate; two explosion chambers which operate alternately are provided.
GB950150A 1950-04-18 1950-04-18 Method of and apparatus for testing combustible gas Expired GB692712A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB950150A GB692712A (en) 1950-04-18 1950-04-18 Method of and apparatus for testing combustible gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB950150A GB692712A (en) 1950-04-18 1950-04-18 Method of and apparatus for testing combustible gas

Publications (1)

Publication Number Publication Date
GB692712A true GB692712A (en) 1953-06-10

Family

ID=9873171

Family Applications (1)

Application Number Title Priority Date Filing Date
GB950150A Expired GB692712A (en) 1950-04-18 1950-04-18 Method of and apparatus for testing combustible gas

Country Status (1)

Country Link
GB (1) GB692712A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2408831A1 (en) * 1977-11-09 1979-06-08 Stauffer Chemical Co APPARATUS FOR DETERMINING THE EXPLOSION LIMITS OF A FLAMMABLE GAS
FR2416468A1 (en) * 1978-02-07 1979-08-31 Mather & Platt Ltd GAS DETECTION METHOD AND APPARATUS
EP0080184A1 (en) * 1981-11-24 1983-06-01 Stazione Sperimentale Per I Combustibili Apparatus for controlling the potential danger of a gaseous mixture made of gas and/or vapor
US8333573B2 (en) 2005-12-15 2012-12-18 Edwards Limited Apparatus for detecting a flammable atmosphere within a compressor, in particular a vacuum pump
CN112698168A (en) * 2021-01-04 2021-04-23 湖北工业大学 High-voltage electrostatic dust collector explosion simulation test device and test method
CN112698167A (en) * 2020-12-31 2021-04-23 湖北工业大学 Combustible gas explosion simulation test device and method for high-voltage electrostatic dust collector
CN112763540A (en) * 2020-12-30 2021-05-07 上海仪器仪表自控系统检验测试所有限公司 Flame-proof test system and test method

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2408831A1 (en) * 1977-11-09 1979-06-08 Stauffer Chemical Co APPARATUS FOR DETERMINING THE EXPLOSION LIMITS OF A FLAMMABLE GAS
FR2416468A1 (en) * 1978-02-07 1979-08-31 Mather & Platt Ltd GAS DETECTION METHOD AND APPARATUS
EP0080184A1 (en) * 1981-11-24 1983-06-01 Stazione Sperimentale Per I Combustibili Apparatus for controlling the potential danger of a gaseous mixture made of gas and/or vapor
US8333573B2 (en) 2005-12-15 2012-12-18 Edwards Limited Apparatus for detecting a flammable atmosphere within a compressor, in particular a vacuum pump
CN112763540A (en) * 2020-12-30 2021-05-07 上海仪器仪表自控系统检验测试所有限公司 Flame-proof test system and test method
CN112763540B (en) * 2020-12-30 2024-01-09 上海仪器仪表自控系统检验测试所有限公司 Explosion-proof test system and test method
CN112698167A (en) * 2020-12-31 2021-04-23 湖北工业大学 Combustible gas explosion simulation test device and method for high-voltage electrostatic dust collector
CN112698167B (en) * 2020-12-31 2022-06-07 湖北工业大学 Combustible gas explosion simulation test device and method for high-voltage electrostatic dust collector
CN112698168A (en) * 2021-01-04 2021-04-23 湖北工业大学 High-voltage electrostatic dust collector explosion simulation test device and test method
CN112698168B (en) * 2021-01-04 2022-06-07 湖北工业大学 High-voltage electrostatic dust collector explosion simulation test device and test method

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