GB269596A - Improvements in glands for high speed shafts - Google Patents

Improvements in glands for high speed shafts

Info

Publication number
GB269596A
GB269596A GB10509/27A GB1050927A GB269596A GB 269596 A GB269596 A GB 269596A GB 10509/27 A GB10509/27 A GB 10509/27A GB 1050927 A GB1050927 A GB 1050927A GB 269596 A GB269596 A GB 269596A
Authority
GB
United Kingdom
Prior art keywords
space
passage
pressure
stage
turbine
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
GB10509/27A
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.)
BBC Brown Boveri AG Germany
BBC Brown Boveri France SA
Original Assignee
Brown Boveri und Cie AG Germany
BBC Brown Boveri France SA
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 Brown Boveri und Cie AG Germany, BBC Brown Boveri France SA filed Critical Brown Boveri und Cie AG Germany
Publication of GB269596A publication Critical patent/GB269596A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F01D11/06—Control thereof
    • 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
    • F16J15/40—Sealings between relatively-moving surfaces by means of fluid

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

269,596. Akt.-Ges. Brown, Boveri, et Cie. April 15, 1926, [Convention date]. Stuffing-boxes, substitutes for; connected to source of high or low pressure.-In a labyrinth packing for a turbine or compressor, an outer spsce 4 is maintained at a pressure slightly below atmospheric and an iner space 3 is maintained at a pressure slightly above that in the space 4, by automatic regulating means. If a, stage of the turbine &c. is at a pressure below atmospheric the space 3 is connected directly to that stage, but, if the lowest pressure of the turbine is above atmospheric, leakage into the space 3 is returned to the low-pressure stage by a compressor 12 and passages 5, 7, 11, and a further space 2 is connected directly to the passage 11 by a passage 6. The pressure in the space 3 is controlled by a regulator 8 connected by a, passage 9 to the passage 5 and by a passage 10 to atmosphere. In place of the compressor 12 an ejector may be employed operated by fluid from the turbine. The space 4 is connected by a passage 13 to a suction apparatus discharging to the atmosphere or to a recovery plant, the pressure in the space 4 being controlled by a regulator 14 connected by a passage 15 to the passage 13 and by a passage 16 to atmosphere. Instead of suction applied to the passage 13 a centrifugal blower may be mounted on the shaft in the space 4, the discharge from the space 3 being effected by an ejector. In this case a regulator controlling the supply passage of the ejector maintains a constant difference between the pressures in the spaces 3 and 4. If the pressure in the stage 1 is below atmospheric the connection 6 is dispensed with, the space 2 being supplied with fluid at a higher pressure than that in the stage 1.
GB10509/27A 1926-04-15 1927-04-19 Improvements in glands for high speed shafts Expired GB269596A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE269596X 1926-04-15
DEA47515D DE451680C (en) 1926-04-15 1926-04-16 Lahyrinth stuffing box for the shafts of high-speed machines

Publications (1)

Publication Number Publication Date
GB269596A true GB269596A (en) 1928-01-19

Family

ID=29403373

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10509/27A Expired GB269596A (en) 1926-04-15 1927-04-19 Improvements in glands for high speed shafts

Country Status (2)

Country Link
DE (1) DE451680C (en)
GB (1) GB269596A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1484994A (en) * 1973-09-03 1977-09-08 Svenska Rotor Maskiner Ab Shaft seal system for screw compressors
DE4313805A1 (en) * 1993-04-27 1994-11-03 Siemens Ag Sealing arrangement for at least one passage of a shaft through a housing

Also Published As

Publication number Publication date
DE451680C (en) 1927-11-01

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