EP1985946A3 - Heat pump system, method for adjusting temperature of lubricating water in heat pump system, and method for operating heat pump system - Google Patents

Heat pump system, method for adjusting temperature of lubricating water in heat pump system, and method for operating heat pump system Download PDF

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Publication number
EP1985946A3
EP1985946A3 EP07001035A EP07001035A EP1985946A3 EP 1985946 A3 EP1985946 A3 EP 1985946A3 EP 07001035 A EP07001035 A EP 07001035A EP 07001035 A EP07001035 A EP 07001035A EP 1985946 A3 EP1985946 A3 EP 1985946A3
Authority
EP
European Patent Office
Prior art keywords
heat pump
pump system
water
bearings
lubricating water
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
EP07001035A
Other languages
German (de)
French (fr)
Other versions
EP1985946A2 (en
EP1985946B1 (en
Inventor
Takanori c/o Hitachi Ltd. Intellectual Shibata
Shigeo c/o Hitachi Ltd. Intellectual Hatamiya
Toshihiko c/o Hitachi Ltd. Intellectual Fukushima
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of EP1985946A2 publication Critical patent/EP1985946A2/en
Publication of EP1985946A3 publication Critical patent/EP1985946A3/en
Application granted granted Critical
Publication of EP1985946B1 publication Critical patent/EP1985946B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/18—Lubricating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B3/00—Other methods of steam generation; Steam boilers not provided for in other groups of this subclass
    • F22B3/04—Other methods of steam generation; Steam boilers not provided for in other groups of this subclass by drop in pressure of high-pressure hot water within pressure- reducing chambers, e.g. in accumulators

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

A heat pump system, a method for adjusting a temperature of lubricating water in a heat pump system, and a method for operating a heat pump system, which suppress boiling of lubricating water for bearings (51) and thereby minimize the deterioration in reliability of the bearings (51). A heat pump system comprising an evaporator (42) for generating steam, and a compressor (34) including a first stage (33) and second stage (32) as a plurality of compression means for compressing the steam, wherein bearings (51) for supporting the compressor (34) are water bearings, and lubricating water in each of the water bearings (51) is controlled to a temperature less than a saturation temperature associated with an internal pressure of each water bearing (51)
EP07001035.0A 2006-02-27 2007-01-18 Heat pump system and method for operating a heat pump system Not-in-force EP1985946B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006049474A JP4923618B2 (en) 2006-02-27 2006-02-27 Heat pump system, lubricating water temperature adjustment method of heat pump system, operation method of heat pump system

Publications (3)

Publication Number Publication Date
EP1985946A2 EP1985946A2 (en) 2008-10-29
EP1985946A3 true EP1985946A3 (en) 2009-06-17
EP1985946B1 EP1985946B1 (en) 2013-07-10

Family

ID=38444206

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07001035.0A Not-in-force EP1985946B1 (en) 2006-02-27 2007-01-18 Heat pump system and method for operating a heat pump system

Country Status (3)

Country Link
US (2) US20070201999A1 (en)
EP (1) EP1985946B1 (en)
JP (1) JP4923618B2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8463441B2 (en) 2002-12-09 2013-06-11 Hudson Technologies, Inc. Method and apparatus for optimizing refrigeration systems
JP4457138B2 (en) * 2007-09-28 2010-04-28 株式会社日立製作所 Compressor and heat pump system
JP5017057B2 (en) * 2007-10-26 2012-09-05 株式会社日立製作所 Heat pump system, operation method thereof, and vapor evaporator system
JP5395712B2 (en) 2010-03-17 2014-01-22 東京電力株式会社 refrigerator
JP5655472B2 (en) * 2010-09-29 2015-01-21 三浦工業株式会社 Steam hot water generation system
US9297277B2 (en) 2011-09-30 2016-03-29 General Electric Company Power plant
US9003799B2 (en) * 2012-08-30 2015-04-14 General Electric Company Thermodynamic cycle optimization for a steam turbine cycle
EP2971622A4 (en) * 2013-03-14 2016-12-21 Echogen Power Systems Llc Controlling turbopump thrust in a heat engine system
JP6692070B2 (en) 2015-07-22 2020-05-13 パナソニックＩｐマネジメント株式会社 Turbo machinery
CN106968984B (en) 2015-12-11 2020-10-23 松下知识产权经营株式会社 Turbine engine
CN109458341A (en) * 2019-01-16 2019-03-12 上海山田机械有限公司 A kind of automatic control system in water lubrication air compressor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3728857A (en) * 1971-06-22 1973-04-24 Gates Rubber Co Turbo-compressor-pump
US4211092A (en) * 1977-09-22 1980-07-08 Karsten Laing Space heating installation
JPS5830522A (en) * 1981-08-19 1983-02-23 Hitachi Ltd Water-lubricated bearing device
US5050389A (en) * 1990-07-10 1991-09-24 Sundstrand Corporation Refrigeration system with oiless compressor supported by hydrodynamic bearings with multiple operation modes and method of operation
JPH11159528A (en) * 1997-12-01 1999-06-15 Kubota Corp Sliding bearing
EP1096209A1 (en) * 1999-10-25 2001-05-02 Electricite De France Heat pumping device, in particular for refrigeration

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2170667A (en) * 1935-05-18 1939-08-22 United Eng Foundry Co Water-lubricated bearing
US3333907A (en) * 1965-03-29 1967-08-01 Frank G Lamb Ice bearing
US3929393A (en) * 1975-02-14 1975-12-30 William F Marantette Water-rubber bearing high speed drill spindle
US4027928A (en) * 1976-06-01 1977-06-07 Turbodyne Corporation (Steam Turbine Div.) Cooling and lubrication arrangement for water cooled bearings having self contained lubrication systems
JPS5776320A (en) * 1980-10-30 1982-05-13 Nakamuratome Seimitsu Kogyo Kk Cooling device for bearing part
JPS60147067A (en) * 1984-01-10 1985-08-02 協和醗酵工業株式会社 Heat pump
JPS61276664A (en) * 1985-05-29 1986-12-06 松下電器産業株式会社 Heat pump device
JPS63314372A (en) * 1987-06-15 1988-12-22 Hitachi Ltd Water-lubrication type bearing device for water wheel
US4948269A (en) * 1989-07-11 1990-08-14 Hamilton James T Bearing temperature regulation and lubrication system
JPH09196481A (en) * 1996-01-22 1997-07-31 Yanmar Diesel Engine Co Ltd Method for altering composition of mixture refrigerant and structure of circuit
JPH09250307A (en) * 1996-03-14 1997-09-22 Toshiba Eng Co Ltd Bearing oil temperature control device
US5887982A (en) * 1997-06-17 1999-03-30 U.S. Filter Wastewater Group, Inc. Bearing assembly for use with a submerged apparatus and method for performing maintenance thereon
SE510066C2 (en) * 1997-08-25 1999-04-12 Svenska Rotor Maskiner Ab Oil-free screw rotor machine, the bearings of which are lubricated with an aqueous liquid
JP4320476B2 (en) * 1997-09-17 2009-08-26 横井産業株式会社 Fluid flow structure
JP3571205B2 (en) * 1998-01-08 2004-09-29 東芝プラントシステム株式会社 Turbine bearing oil temperature control device
US6047766A (en) * 1998-08-03 2000-04-11 Hewlett-Packard Company Multi-mode heat transfer using a thermal heat pipe valve
JP2003097212A (en) * 2001-09-21 2003-04-03 Honda Motor Co Ltd Rotary fluid machine
JP2003113997A (en) * 2001-10-03 2003-04-18 Toshiba Corp Lubricant temperature control device of rotary body bearing part
EP1500804B1 (en) * 2003-07-24 2014-04-30 Hitachi, Ltd. Gas turbine power plant
JP4440722B2 (en) * 2003-07-24 2010-03-24 株式会社日立製作所 Gas turbine power generation facility and operation method thereof
EP1691038A1 (en) * 2004-12-17 2006-08-16 Hitachi, Ltd. Heat energy supply system and method, and reconstruction method of the system
JP5151014B2 (en) * 2005-06-30 2013-02-27 株式会社日立製作所 HEAT PUMP DEVICE AND HEAT PUMP OPERATION METHOD

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3728857A (en) * 1971-06-22 1973-04-24 Gates Rubber Co Turbo-compressor-pump
US4211092A (en) * 1977-09-22 1980-07-08 Karsten Laing Space heating installation
JPS5830522A (en) * 1981-08-19 1983-02-23 Hitachi Ltd Water-lubricated bearing device
US5050389A (en) * 1990-07-10 1991-09-24 Sundstrand Corporation Refrigeration system with oiless compressor supported by hydrodynamic bearings with multiple operation modes and method of operation
JPH11159528A (en) * 1997-12-01 1999-06-15 Kubota Corp Sliding bearing
EP1096209A1 (en) * 1999-10-25 2001-05-02 Electricite De France Heat pumping device, in particular for refrigeration

Also Published As

Publication number Publication date
JP2007224868A (en) 2007-09-06
US20100089077A1 (en) 2010-04-15
JP4923618B2 (en) 2012-04-25
US20070201999A1 (en) 2007-08-30
EP1985946A2 (en) 2008-10-29
EP1985946B1 (en) 2013-07-10

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