EP1519053A3 - A submerged pump having a bearing lubricated by discharged fluid - Google Patents

A submerged pump having a bearing lubricated by discharged fluid Download PDF

Info

Publication number
EP1519053A3
EP1519053A3 EP04023215A EP04023215A EP1519053A3 EP 1519053 A3 EP1519053 A3 EP 1519053A3 EP 04023215 A EP04023215 A EP 04023215A EP 04023215 A EP04023215 A EP 04023215A EP 1519053 A3 EP1519053 A3 EP 1519053A3
Authority
EP
European Patent Office
Prior art keywords
duct
lead
submerged pump
discharged fluid
bearing lubricated
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.)
Withdrawn
Application number
EP04023215A
Other languages
German (de)
French (fr)
Other versions
EP1519053A2 (en
Inventor
Norifumi Tani
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.)
Nikkiso Co Ltd
Original Assignee
Nikkiso 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 Nikkiso Co Ltd filed Critical Nikkiso Co Ltd
Publication of EP1519053A2 publication Critical patent/EP1519053A2/en
Publication of EP1519053A3 publication Critical patent/EP1519053A3/en
Withdrawn legal-status Critical Current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
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/046—Bearings
    • F04D29/049—Roller bearings
    • 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
    • F04D29/06—Lubrication
    • F04D29/061—Lubrication especially adapted for liquid pumps
    • 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
    • F04D29/588—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps cooling or heating the machine

Abstract

A target fluid discharged from a pump (12) is partially diverted, by a lead-in duct (58), into a housing chamber (49) including a motor (32) therein. A top bearing (50) supporting a motor shaft (36) is placed in the lead-in duct (58), and lubricated by the target fluid flowing through the lead-in duct (58). A top seal (60) is installed downstream from the top bearing (50) in the lead-in duct (58). The top seal (60) has a slight gap from the motor shaft (36) to form a throttle structure which increases a flow resistance. The throttle structure maintains a pressure in an area near the top bearing (50), to thereby suppress presence of gases.
EP04023215A 2003-09-29 2004-09-29 A submerged pump having a bearing lubricated by discharged fluid Withdrawn EP1519053A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003338540A JP4300088B2 (en) 2003-09-29 2003-09-29 Submerged pump
JP2003338540 2003-09-29

Publications (2)

Publication Number Publication Date
EP1519053A2 EP1519053A2 (en) 2005-03-30
EP1519053A3 true EP1519053A3 (en) 2009-04-08

Family

ID=34191594

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04023215A Withdrawn EP1519053A3 (en) 2003-09-29 2004-09-29 A submerged pump having a bearing lubricated by discharged fluid

Country Status (3)

Country Link
US (1) US20050069434A1 (en)
EP (1) EP1519053A3 (en)
JP (1) JP4300088B2 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005005165U1 (en) * 2005-04-01 2006-08-17 Wagner, Paul-Heinz hydraulic power unit
FR2906580B1 (en) * 2006-09-28 2009-01-09 Snecma Sa PUMP WITH ELECTRIC MOTOR IMMERED IN THE PUMP FLUID
FR2915535B1 (en) * 2007-04-30 2009-07-24 Snecma Sa ROTATING MACHINE COMPRISING A PASSIVE AXIAL BALANCING SYSTEM
DE102008018407B4 (en) * 2008-04-10 2012-03-22 Joh. Heinr. Bornemann Gmbh Underwater delivery unit
DE102009045633A1 (en) * 2009-10-13 2011-04-14 Man Diesel & Turbo Se Underwater compressor assembly and underwater process fluid conveyor assembly equipped therewith
CN102062107B (en) * 2010-12-13 2012-08-29 甘肃银光聚银化工有限公司 Multi-stage axial flow submerged pump with long shaft and method for conveying phosgene
US20120224985A1 (en) * 2011-03-02 2012-09-06 Baker Hughes Incorporated Electric submersible pump floating ring bearing and method to assemble same
US20130189133A1 (en) * 2012-01-19 2013-07-25 Danfoss (Tianjin) Ltd. Compressor and method of assembling compressor
CN102996469B (en) * 2012-12-24 2015-09-30 成都安迪生测量有限公司 A kind of low temperature immersed pump of multi-head spiral sealing
CN103573651B (en) * 2013-11-08 2017-02-08 成都安迪生测量有限公司 LNG immersed pump
CN103629144A (en) * 2013-12-26 2014-03-12 大连深蓝泵业有限公司 Vertical submerged pump bearing protection device
CN103618414A (en) * 2013-12-26 2014-03-05 大连深蓝泵业有限公司 Novel low-temperature immersed motor
JP6339422B2 (en) * 2014-06-10 2018-06-06 エア・ウォーター株式会社 Fluid pump
CN105298824A (en) * 2014-06-27 2016-02-03 安瑞科(廊坊)能源装备集成有限公司 Liquefied natural gas (LNG) immersed pump system
CN105756957A (en) * 2016-04-18 2016-07-13 大连深蓝泵业有限公司 Shafting supporting structure of electrical ultra-low temperature immersed pump for ocean working condition
US11274679B2 (en) * 2017-02-14 2022-03-15 Danfoss A/S Oil free centrifugal compressor for use in low capacity applications
NO346033B1 (en) 2018-12-20 2022-01-10 Fsubsea As Subsea pump system with process lubricated bearings, related method and use
EP4253759A1 (en) * 2020-11-27 2023-10-04 Ebara Corporation Flow path switching device and method for preventing dry running of submerged-type pump

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1486842A (en) * 1920-10-30 1924-03-11 Midwest Engine Corp Lubricating system for deep-well pumps
US1953447A (en) * 1930-08-23 1934-04-03 A D Cook Inc Water lubrication system for deep well turbine pumps
US3574473A (en) * 1968-01-24 1971-04-13 Klein Schanzlin & Becker Ag Method and apparatus for cooling parts of pumps in nuclear reactors or the like
US4396302A (en) * 1980-06-17 1983-08-02 Jeumont Schneider Corporation Hydrostatic bearing with security of function
JP2002371995A (en) * 2001-06-14 2002-12-26 Nikkiso Co Ltd Wet motor pump
JP2003201983A (en) * 2002-01-09 2003-07-18 Nikkiso Co Ltd Multistage centrifugal pump

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58192997A (en) * 1982-05-07 1983-11-10 Hitachi Ltd Vertical motor pump
CN1005348B (en) * 1987-03-23 1989-10-04 核工业部第二研究设计院 Shielded pump
US4957417A (en) * 1989-07-14 1990-09-18 Kabushiki Kaisha Kobe Seiko Sho Vertical oilless screw vacuum pump

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1486842A (en) * 1920-10-30 1924-03-11 Midwest Engine Corp Lubricating system for deep-well pumps
US1953447A (en) * 1930-08-23 1934-04-03 A D Cook Inc Water lubrication system for deep well turbine pumps
US3574473A (en) * 1968-01-24 1971-04-13 Klein Schanzlin & Becker Ag Method and apparatus for cooling parts of pumps in nuclear reactors or the like
US4396302A (en) * 1980-06-17 1983-08-02 Jeumont Schneider Corporation Hydrostatic bearing with security of function
JP2002371995A (en) * 2001-06-14 2002-12-26 Nikkiso Co Ltd Wet motor pump
JP2003201983A (en) * 2002-01-09 2003-07-18 Nikkiso Co Ltd Multistage centrifugal pump

Also Published As

Publication number Publication date
EP1519053A2 (en) 2005-03-30
JP4300088B2 (en) 2009-07-22
JP2005105897A (en) 2005-04-21
US20050069434A1 (en) 2005-03-31

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