EP0222233A3 - Multistage centrifugal pump for the transport of liquid gas - Google Patents

Multistage centrifugal pump for the transport of liquid gas

Info

Publication number
EP0222233A3
EP0222233A3 EP86114824A EP86114824A EP0222233A3 EP 0222233 A3 EP0222233 A3 EP 0222233A3 EP 86114824 A EP86114824 A EP 86114824A EP 86114824 A EP86114824 A EP 86114824A EP 0222233 A3 EP0222233 A3 EP 0222233A3
Authority
EP
European Patent Office
Prior art keywords
liquefied gas
pump
stage
expansion chamber
centrifugal pump
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.)
Granted
Application number
EP86114824A
Other languages
German (de)
Other versions
EP0222233A2 (en
EP0222233B1 (en
Inventor
Jurgen Schill
Hans-Joachim Dr. Franke
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.)
KSB AG
Original Assignee
Klein Schanzlin and Becker AG
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 Klein Schanzlin and Becker AG filed Critical Klein Schanzlin and Becker AG
Priority to AT86114824T priority Critical patent/ATE59694T1/en
Publication of EP0222233A2 publication Critical patent/EP0222233A2/en
Publication of EP0222233A3 publication Critical patent/EP0222233A3/en
Application granted granted Critical
Publication of EP0222233B1 publication Critical patent/EP0222233B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F04D13/083—Units comprising pumps and their driving means the pump being electrically driven for submerged use and protected by a gas-bell
    • 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

Landscapes

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

Abstract

A liquefied gas pump wherein a vessel contains a supply of liquefied gas which is pumped from its inlet to its outlet by a multi-stage upright centrifugal pump whose first stage is immersed in the supply of liquefied gas in the vessel. The shaft seal at the upper end of the pump housing is held out of contact with liquefied gas by a first flow restrictor above the last stage of the pump, an expansion chamber which is filled with liquefied gas and is located above the first flow restrictor, a gas collecting chamber between the expansion chamber and the seal, and a second flow restrictor which is disposed between the two chambers and prevents penetration of liquefied gas from the expansion chamber into the collecting chamber. The latter is connected with the vessel and/or with a gas collecting tank. The expansion chamber is connected with the second and/or third stage of the pump in order to ensure that it is filled with liquefied gas.
EP86114824A 1985-11-06 1986-10-24 Multistage centrifugal pump for the transport of liquid gas Expired - Lifetime EP0222233B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86114824T ATE59694T1 (en) 1985-11-06 1986-10-24 MULTISTAGE CENTRIFUGAL PUMP FOR PUMPING LIQUID GAS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3539251 1985-11-06
DE19853539251 DE3539251A1 (en) 1985-11-06 1985-11-06 MULTI-STAGE CENTRIFUGAL PUMP FOR CONVEYING LIQUID GAS

Publications (3)

Publication Number Publication Date
EP0222233A2 EP0222233A2 (en) 1987-05-20
EP0222233A3 true EP0222233A3 (en) 1988-08-24
EP0222233B1 EP0222233B1 (en) 1991-01-02

Family

ID=6285228

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86114824A Expired - Lifetime EP0222233B1 (en) 1985-11-06 1986-10-24 Multistage centrifugal pump for the transport of liquid gas

Country Status (4)

Country Link
US (1) US4753571A (en)
EP (1) EP0222233B1 (en)
AT (1) ATE59694T1 (en)
DE (1) DE3539251A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4033473A1 (en) * 1990-10-20 1992-04-23 Pacific Wietz Gmbh & Co Kg Measuring leakage rate of slide ring seal - mixes leakage fluid in gaseous state with inert gas and measures concentration of leakage fluid in the mixt.
CA2143033C (en) * 1994-02-23 2006-04-11 Masao Matsumura Turboexpander pump unit
DE19501900A1 (en) * 1995-01-23 1996-07-25 Klein Schanzlin & Becker Ag Mechanical seal for boiler feed pumps
PL3199859T3 (en) 2016-01-29 2021-10-25 Cryostar Sas Submersible pump assembly for dispensing liquefied gas
CN109185175A (en) * 2018-10-12 2019-01-11 东莞宏剑工业设备有限公司 Brush DC magnetic drive pump

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2281650A (en) * 1940-01-27 1942-05-05 Worthington Pump & Mach Corp Circulating pump for steam generators
GB637005A (en) * 1948-03-19 1950-05-10 Jonkopings Mek Werkstads Atkie Improvements in centrifugal pumps
US3792935A (en) * 1971-08-26 1974-02-19 Weir Pumps Ltd Rotary-shaft liquid handling machine
EP0045483A2 (en) * 1980-08-05 1982-02-10 SIHI GmbH & Co KG Self-priming rotary pump, particularly for bringing liquids to their boiling point
EP0150515A1 (en) * 1984-01-13 1985-08-07 B.V. Neratoom Pump for circulating a cooling fluid consisting of a liquid metal in a cooling circuit of a nuclear reactor

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA607566A (en) * 1960-10-25 Borg-Warner Corporation Mechanical seal for liquid oxygen pump
US3117792A (en) * 1963-06-10 1964-01-14 United Aircraft Corp Fusible shaft seal
DE1930674U (en) * 1963-08-02 1966-01-05 Klein Schanzlin & Becker Ag BREATHER-FREE SHAFT SEAL FOR HIGH SPEED CENTRIFUGAL PUMPS, IN PARTICULAR HIGH PRESSURE BOILER FEED PUMPS.
US3370542A (en) * 1965-10-21 1968-02-27 Dresser Ind Temperature detection device
US3733145A (en) * 1971-03-04 1973-05-15 Nevsky Mash Vand-type centrifugal machine, mainly, high-pressure compressor
DE2600505C3 (en) * 1976-01-08 1981-03-12 Klein, Schanzlin & Becker Ag, 6710 Frankenthal Hydrostatic shaft seal
US4128362A (en) * 1977-04-22 1978-12-05 Dresser Industries, Inc. Flushing and cooling system for pumps

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2281650A (en) * 1940-01-27 1942-05-05 Worthington Pump & Mach Corp Circulating pump for steam generators
GB637005A (en) * 1948-03-19 1950-05-10 Jonkopings Mek Werkstads Atkie Improvements in centrifugal pumps
US3792935A (en) * 1971-08-26 1974-02-19 Weir Pumps Ltd Rotary-shaft liquid handling machine
EP0045483A2 (en) * 1980-08-05 1982-02-10 SIHI GmbH & Co KG Self-priming rotary pump, particularly for bringing liquids to their boiling point
EP0150515A1 (en) * 1984-01-13 1985-08-07 B.V. Neratoom Pump for circulating a cooling fluid consisting of a liquid metal in a cooling circuit of a nuclear reactor

Also Published As

Publication number Publication date
EP0222233A2 (en) 1987-05-20
ATE59694T1 (en) 1991-01-15
US4753571A (en) 1988-06-28
EP0222233B1 (en) 1991-01-02
DE3539251C2 (en) 1987-12-03
DE3539251A1 (en) 1987-05-14

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