GB1111618A - Improvements relating to vertically mounted centrifugal pumps - Google Patents

Improvements relating to vertically mounted centrifugal pumps

Info

Publication number
GB1111618A
GB1111618A GB29232/64A GB2923264A GB1111618A GB 1111618 A GB1111618 A GB 1111618A GB 29232/64 A GB29232/64 A GB 29232/64A GB 2923264 A GB2923264 A GB 2923264A GB 1111618 A GB1111618 A GB 1111618A
Authority
GB
United Kingdom
Prior art keywords
chamber
liquid
level
seal
shaft
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
GB29232/64A
Inventor
Alexander Stirling Malloch
James Foulds Noble
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.)
Worthington Simpson Ltd
Original Assignee
Worthington Simpson 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 Worthington Simpson Ltd filed Critical Worthington Simpson Ltd
Priority to GB29232/64A priority Critical patent/GB1111618A/en
Priority to US471936A priority patent/US3339491A/en
Priority to NL6509196A priority patent/NL6509196A/xx
Priority to ES0315432A priority patent/ES315432A1/en
Publication of GB1111618A publication Critical patent/GB1111618A/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
    • F04D29/106—Shaft sealings especially adapted for liquid pumps
    • F04D29/108—Shaft sealings especially adapted for liquid pumps the sealing fluid being other than the working liquid or being the working liquid treated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
    • F04D7/06—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being hot or corrosive, e.g. liquid metals

Landscapes

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

Abstract

1,111,618. Shaft seals. WORTHINGTONSIMPSON Ltd. 5 July, 1965 [17 July, 1964], No. 29232/64. Heading F2B. In a vertically mounted centrifugal pump for handling corrosive liquids or liquids containing abrasive particles the shaft seal 16 is separated from the impeller 12 by a chamber 1 to which the liquid has access and which is supplied with gas under pressure from an external source so as to maintain the level of the liquid below the shaft seal. Inert gas, which may be nitrogen, is supplied to the chamber 1 at a higher pressure than that of the liquid through a pipe 17 and regulator valve 2 and the level of the liquid is maintained constant by the gas being able to escape from the chamber 1 through a vent 3 connected to the liquid supply tank 4 or to an exhaust pipe 37. The shaft seal 16 is a double mechanical seal and is housed in a chamber 5 containing sealing liquid, which may be oil, at a pressure not less than the pressure in the chamber 1. The latter may be connected to the chamber 5 by a pipe 20. The pump shaft 13 is driven by an electric motor 15. The liquid level in the chamber 1 may be controlled by a level regulating device, Fig. 2 (not shown), comprising a float (23) responsive to changes of liquid level to operate valves (25, 26) controlling the admission or exhaust of gas to or from the chamber 1. In a further modification, Fig. 3 (not shown), the seal is contained in a housing (7) through which sealing liquid from a reservoir (8) is circulated by helical grooves (9a) on the seal spring carrier (9). A heat exchanger (33) is incorporated in the return line from the housing (7).
GB29232/64A 1964-07-17 1964-07-17 Improvements relating to vertically mounted centrifugal pumps Expired GB1111618A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB29232/64A GB1111618A (en) 1964-07-17 1964-07-17 Improvements relating to vertically mounted centrifugal pumps
US471936A US3339491A (en) 1964-07-17 1965-07-14 Vertically mounted rotary pumps
NL6509196A NL6509196A (en) 1964-07-17 1965-07-15
ES0315432A ES315432A1 (en) 1964-07-17 1965-07-16 Vertically mounted rotary pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB29232/64A GB1111618A (en) 1964-07-17 1964-07-17 Improvements relating to vertically mounted centrifugal pumps

Publications (1)

Publication Number Publication Date
GB1111618A true GB1111618A (en) 1968-05-01

Family

ID=10288236

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29232/64A Expired GB1111618A (en) 1964-07-17 1964-07-17 Improvements relating to vertically mounted centrifugal pumps

Country Status (4)

Country Link
US (1) US3339491A (en)
ES (1) ES315432A1 (en)
GB (1) GB1111618A (en)
NL (1) NL6509196A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3513942A (en) * 1967-11-27 1970-05-26 Teikoku Denki Seisakusho Kk Device for lubricating a bearing for use in a canned motor pump and an agitator
US3746472A (en) * 1971-08-06 1973-07-17 Rupp Co Warren Submersible electric pump having fluid pressure protective means
AT329972B (en) * 1974-08-20 1976-06-10 Andritz Ag Maschf MAIN COOLANT PUMP
US4493609A (en) * 1983-02-28 1985-01-15 Stauffer Chemical Company Pumping apparatus
US4683985A (en) * 1985-01-04 1987-08-04 Dresser Industries, Inc. Lubrication system for a vertical gear unit
DE4127073A1 (en) * 1991-08-16 1993-02-18 Erich Bertsch Hermetic sealing arrangement for shaft passing from a reaction vessel to the outside - has 2 sealing surfaces incorporating throttle regulating hydraulic sealant circuit, hydraulic sealant is inert and forms stable cushion barrier
US6183208B1 (en) * 1997-10-03 2001-02-06 Roper Holdings, Inc. Immersible motor system
US6783322B2 (en) 2002-04-23 2004-08-31 Roper Holdings, Inc. Pump system with variable-pressure seal
LU91731B1 (en) * 2010-09-13 2012-03-14 Zenit Internat S A Cooling systems for submersible pumps
CN104421196A (en) * 2013-08-29 2015-03-18 江苏太阳宝新能源有限公司 Molten salt pump shaft seal device
CN103603825A (en) * 2013-11-25 2014-02-26 丹东克隆先锋泵业有限公司 Spindle dry-type-running magnetic drive pump

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2075895A (en) * 1934-05-21 1937-04-06 Wayne A S Harmon Molten metal pump
US2423825A (en) * 1945-07-06 1947-07-15 Byron Jackson Co Motor pump unit
GB788831A (en) * 1955-02-12 1958-01-08 Bayer Ag Method and means for protecting the stuffing boxes of rotary pumps from attack by any chemically corrosive, toxic and inflammable liquid being pumped
US2935026A (en) * 1956-03-22 1960-05-03 New York Air Brake Co Staged turbine pump for liquefied gases
US2949321A (en) * 1957-01-26 1960-08-16 Borg Warner Mechanical seal for liquid oxygen pump
US2911919A (en) * 1957-07-23 1959-11-10 C H Wheeler Mfg Co Pumping system
US2959133A (en) * 1957-09-23 1960-11-08 Allis Chalmers Mfg Co Hermetically sealed pump motor unit
US3048118A (en) * 1961-02-10 1962-08-07 Chas S Lewis & Company Inc Pump

Also Published As

Publication number Publication date
US3339491A (en) 1967-09-05
ES315432A1 (en) 1966-02-16
NL6509196A (en) 1966-01-18

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