GB1032410A - Improvements in or relating to shaft seals - Google Patents

Improvements in or relating to shaft seals

Info

Publication number
GB1032410A
GB1032410A GB1476261A GB1476261A GB1032410A GB 1032410 A GB1032410 A GB 1032410A GB 1476261 A GB1476261 A GB 1476261A GB 1476261 A GB1476261 A GB 1476261A GB 1032410 A GB1032410 A GB 1032410A
Authority
GB
United Kingdom
Prior art keywords
chamber
oil
container
ring
seal
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
GB1476261A
Inventor
Adolf Frakel
Jersey Andre Lorett
Michael Thomas Alphons Mcgowan
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.)
Richardsons Westgarth and Co Ltd
Original Assignee
Richardsons Westgarth and Co Ltd
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 Richardsons Westgarth and Co Ltd filed Critical Richardsons Westgarth and Co Ltd
Priority to GB1476261A priority Critical patent/GB1032410A/en
Publication of GB1032410A publication Critical patent/GB1032410A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/002—Sealings comprising at least two sealings in succession
    • F16J15/006—Sealings comprising at least two sealings in succession with division of the pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
    • F01D11/04—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type using sealing fluid, e.g. steam
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/3404—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/3404—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal
    • F16J15/3408—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface
    • F16J15/3412—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface with cavities
    • F16J15/342—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface with cavities with means for feeding fluid directly to the face

Abstract

1,032,410. Shaft seals. RICHARDSONS, WESTGARTH & CO. Ltd. July 24, 1962 [April 24, 1961], No. 14762/61. Heading F2B. Sealing means for the rotary shaft 1 where it extends through the casing wall 2 of a carbondioxide compressor comprises a wind-back screw seal 9 communicating at one end with a first chamber 7 which adjoins a shaft bearing 5 and houses an axially-displaceable non-rotatable ring 11 urged by springs 12 towards a shoulder 10 on the shaft and communicating at the other end with a second chamber 22 connected by a drainage duet 26 to a drain container 27 maintained at superatmospheric pressure, sealing oil, being supplied to the first chamber 7 at a selected pressure above the pressure of the carbondioxide gas in the space 4 within the casing and sealing oil leaking into the second chamber 22 being drained therefrom into the container 27. The sealing oil, some of which acts as a lubricant for the bearing 5, is supplied to the chamber 7 via a passage 6 and has its pressure controlled by a device 8. The ring 11 is sealed to the chamber 7 by a piston-ring 14. The seal 9 comprises multi-start helical grooves in the casing 2 opposing a cylindrical surface on the shoulder 10. The container 27 is vented via a throttling restriction 30 and the oil level in the container is controlled either by a discharge restriction 28 or by a valve 29. When the shaft is at rest or rotating at a low speed, the ring 11 is urged by the springs 12 into sealing contact with the shoulder 10. In operation under normal running conditions, a gap 15 is formed between the faces 13 and 16 by the oil pressure and an oil/gas interface occurs at an axial position along the seal 9. Any oil leaking past the seal 9 is thrown outwardly by a baffle 24 into the chamber 22 and drained into the container 27. A labyrinth seal 25 is provided between the space 4 and the chamber 22. In a modification, Fig. 2 (not shown), the sealing oil is supplied to the chamber 7 through passages in the ring 11.
GB1476261A 1961-04-24 1961-04-24 Improvements in or relating to shaft seals Expired GB1032410A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1476261A GB1032410A (en) 1961-04-24 1961-04-24 Improvements in or relating to shaft seals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1476261A GB1032410A (en) 1961-04-24 1961-04-24 Improvements in or relating to shaft seals

Publications (1)

Publication Number Publication Date
GB1032410A true GB1032410A (en) 1966-06-08

Family

ID=10047041

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1476261A Expired GB1032410A (en) 1961-04-24 1961-04-24 Improvements in or relating to shaft seals

Country Status (1)

Country Link
GB (1) GB1032410A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113969982A (en) * 2021-10-22 2022-01-25 重庆江增船舶重工有限公司 Cooling method and structure of cantilever type supercritical carbon dioxide turbine
CN114856724A (en) * 2022-04-29 2022-08-05 重庆江增船舶重工有限公司 Double-valve control system and method applied to supercritical carbon dioxide turbine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113969982A (en) * 2021-10-22 2022-01-25 重庆江增船舶重工有限公司 Cooling method and structure of cantilever type supercritical carbon dioxide turbine
CN113969982B (en) * 2021-10-22 2023-12-15 重庆江增船舶重工有限公司 Cooling method and structure of cantilever supercritical carbon dioxide turbine
CN114856724A (en) * 2022-04-29 2022-08-05 重庆江增船舶重工有限公司 Double-valve control system and method applied to supercritical carbon dioxide turbine
CN114856724B (en) * 2022-04-29 2023-10-24 重庆江增船舶重工有限公司 Double-valve control system and method applied to supercritical carbon dioxide turbine

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