GB937349A - Improvements relating to gas pumps - Google Patents

Improvements relating to gas pumps

Info

Publication number
GB937349A
GB937349A GB2973661A GB2973661A GB937349A GB 937349 A GB937349 A GB 937349A GB 2973661 A GB2973661 A GB 2973661A GB 2973661 A GB2973661 A GB 2973661A GB 937349 A GB937349 A GB 937349A
Authority
GB
United Kingdom
Prior art keywords
glands
pipe
gas
pump
leaking
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
GB2973661A
Inventor
Stanley Martin Thomson
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 GB2973661A priority Critical patent/GB937349A/en
Publication of GB937349A publication Critical patent/GB937349A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/102—Shaft sealings especially adapted for elastic fluid pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

937,349. Stuffing-box substitutes. NORTH THAMES GAS BOARD. Aug. 17, 1962 [Aug. 17, 1961], No. 29736/61. Class 122 (5). In a rotary gas pump the impeller shaft 4 is sealed by labyrinth glands 11 and 12 which, at points between their ends, communicate through pipes 13, 14 and 15 with an ejector 16 connected in a pipe 17 between the pump inlet 6 and outlet 7 whereby, when the pump is running, any gas leaking through the glands is withdrawn by the ejector and returned to the inlet 6. A vacuum governor 22 in the pipe 15 keeps the pressures at the points where the pipes 13 and 14 communicate with the glands at, or slightly above, atmospheric. When the pump is at rest, in order to prevent air leaking into the casing valve 23 is closed and valves 27 and 29 are opened and low pressure gas is fed into the system through a pipe 24, governor 25 and valves 26, 27, any gas leaking through the glands then being vented to atmosphere through a pipe 28 and flame trap 30.
GB2973661A 1961-08-17 1961-08-17 Improvements relating to gas pumps Expired GB937349A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2973661A GB937349A (en) 1961-08-17 1961-08-17 Improvements relating to gas pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2973661A GB937349A (en) 1961-08-17 1961-08-17 Improvements relating to gas pumps

Publications (1)

Publication Number Publication Date
GB937349A true GB937349A (en) 1963-09-18

Family

ID=10296330

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2973661A Expired GB937349A (en) 1961-08-17 1961-08-17 Improvements relating to gas pumps

Country Status (1)

Country Link
GB (1) GB937349A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106762793A (en) * 2017-01-03 2017-05-31 山东钢铁股份有限公司 A kind of device for preventing air blower shaft end sealing leak coal gas

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106762793A (en) * 2017-01-03 2017-05-31 山东钢铁股份有限公司 A kind of device for preventing air blower shaft end sealing leak coal gas
CN106762793B (en) * 2017-01-03 2023-02-28 山东钢铁股份有限公司 Device for preventing shaft end of air blower from sealing and leaking coal gas

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