EP1975415A3 - Rotary compressor unit and method of controlling operation thereof - Google Patents

Rotary compressor unit and method of controlling operation thereof Download PDF

Info

Publication number
EP1975415A3
EP1975415A3 EP08002967A EP08002967A EP1975415A3 EP 1975415 A3 EP1975415 A3 EP 1975415A3 EP 08002967 A EP08002967 A EP 08002967A EP 08002967 A EP08002967 A EP 08002967A EP 1975415 A3 EP1975415 A3 EP 1975415A3
Authority
EP
European Patent Office
Prior art keywords
pressure stage
compressor
stage compressor
compressors
compressor unit
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Withdrawn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
EP08002967A
Other languages
German (de)
French (fr)
Other versions
EP1975415A2 (en
Inventor
Hideyuki Kimura
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.)
Anest Iwata Corp
Original Assignee
Anest Iwata Corp
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 Anest Iwata Corp filed Critical Anest Iwata Corp
Publication of EP1975415A2 publication Critical patent/EP1975415A2/en
Publication of EP1975415A3 publication Critical patent/EP1975415A3/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Withdrawn legal-status Critical Current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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/08—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the rotational speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/02—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for several pumps connected in series or in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/123—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with radially or approximately radially from the rotor body extending tooth-like elements, co-operating with recesses in the other rotor, e.g. one tooth
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/05—Speed
    • F04C2270/051—Controlled or regulated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/05—Speed
    • F04C2270/052—Speed angular
    • F04C2270/0525—Controlled or regulated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/18—Pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)

Abstract

The compressor unit having at least two compressors, for example a low pressure stage compressor (11) and a high pressure stage compressor (12) connected in series, of which the low pressure sage compressor (11) and high pressure stage compressor (12) are driven by driving devices (13 and 14) respectively separately or driven by a single driving device (41) via variable speed gears (43 and 44) respectively connected to each of the compressors, and rotation speed of the low pressure stage compressor (11) and that of the high pressure stage compressor (12) are controlled independently in accordance with various operating conditions of the compressor unit so that optimal load balancing of the compressors (11 and 12) is always achieved.
EP08002967A 2007-03-30 2008-02-18 Rotary compressor unit and method of controlling operation thereof Withdrawn EP1975415A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007095584A JP5071967B2 (en) 2007-03-30 2007-03-30 Rotary compressor and operation control method thereof

Publications (2)

Publication Number Publication Date
EP1975415A2 EP1975415A2 (en) 2008-10-01
EP1975415A3 true EP1975415A3 (en) 2012-05-23

Family

ID=39629130

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08002967A Withdrawn EP1975415A3 (en) 2007-03-30 2008-02-18 Rotary compressor unit and method of controlling operation thereof

Country Status (4)

Country Link
US (1) US20080240953A1 (en)
EP (1) EP1975415A3 (en)
JP (1) JP5071967B2 (en)
CN (1) CN101275564A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101381085B1 (en) * 2007-11-13 2014-04-10 엘지전자 주식회사 2 stage rotary compressor
BE1018096A3 (en) * 2008-04-14 2010-05-04 Atlas Copco Airpower Nv Multi-stage compressor controlling method for compressed air system e.g. absorption dryer, involves controlling exhaust temperature of one compressor element or intermediate pressure between two linked compressor elements
JP4818410B2 (en) * 2009-08-11 2011-11-16 オリオン機械株式会社 Claw pump exhaust structure and exhaust method
US8011191B2 (en) 2009-09-30 2011-09-06 Thermo Fisher Scientific (Asheville) Llc Refrigeration system having a variable speed compressor
JP5584862B2 (en) * 2010-03-19 2014-09-10 オリオン機械株式会社 Biaxial rotary pump and manufacturing method thereof
CN102330687B (en) * 2011-05-25 2014-06-04 宁波奥克斯电气有限公司 Method for controlling compressor load during normal operation of screw type compression multi-split air conditioner
US9618242B2 (en) * 2013-01-16 2017-04-11 GM Global Technology Operations LLC Method for controlling a thermal storage heat pump system
KR101983697B1 (en) * 2013-09-23 2019-06-04 한온시스템 주식회사 Method for controlling electric compressor of heat pump system for a automotive vehicle
JP6670645B2 (en) * 2016-03-16 2020-03-25 株式会社日立産機システム Multi-stage compressor
DE102017107601B4 (en) * 2017-04-10 2019-11-07 Gardner Denver Deutschland Gmbh Method for controlling a screw compressor
CN107605732B (en) * 2017-09-04 2019-12-03 深圳市英威腾电气股份有限公司 A kind of control method of double-stage compressor, control device and control system
CN112610522B (en) * 2020-12-31 2023-01-24 浙江中控技术股份有限公司 Control method of series compressor unit and related equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9306559U1 (en) * 1992-06-10 1993-07-01 Siemens AG, 8000 München Arrangement consisting of at least two liquid ring machines connected in series
JPH07158576A (en) * 1993-12-03 1995-06-20 Kobe Steel Ltd Two-stage type oil free screw compressor
US6056510A (en) * 1996-11-30 2000-05-02 Aisin Seiki Kabushiki Kaisha Multistage vacuum pump unit
WO2001031202A1 (en) * 1999-10-26 2001-05-03 Atlas Copco Airpower, Naamloze Vennootschap Multistage compressor unit and method for regulating such multistage compressor unit
WO2002025115A1 (en) * 2000-09-25 2002-03-28 Compair Uk Limited Multi-stage screw compressor

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH052862Y2 (en) * 1987-06-30 1993-01-25
JPH01193089A (en) 1988-01-29 1989-08-03 Toshiba Corp Rotary compressor
JP2555464B2 (en) 1990-04-24 1996-11-20 株式会社東芝 Refrigeration cycle equipment
JP4071423B2 (en) 2000-07-24 2008-04-02 アネスト岩田株式会社 Scroll fluid machine and its assembly method
JP3751208B2 (en) * 2001-02-23 2006-03-01 株式会社神戸製鋼所 Control method of multistage variable speed compressor
JP2002327690A (en) * 2001-04-27 2002-11-15 Daikin Ind Ltd Two-stage compressor
JP2004360464A (en) 2003-06-02 2004-12-24 Hitachi Industrial Equipment Systems Co Ltd Variable speed control type oil-less screw compression device
US7028491B2 (en) * 2004-03-29 2006-04-18 Tecumseh Products Company Method and apparatus for reducing inrush current in a multi-stage compressor
WO2006093821A1 (en) * 2005-02-26 2006-09-08 Ingersoll-Rand Company System and method for controlling a variable speed compressor during stopping

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9306559U1 (en) * 1992-06-10 1993-07-01 Siemens AG, 8000 München Arrangement consisting of at least two liquid ring machines connected in series
JPH07158576A (en) * 1993-12-03 1995-06-20 Kobe Steel Ltd Two-stage type oil free screw compressor
US6056510A (en) * 1996-11-30 2000-05-02 Aisin Seiki Kabushiki Kaisha Multistage vacuum pump unit
WO2001031202A1 (en) * 1999-10-26 2001-05-03 Atlas Copco Airpower, Naamloze Vennootschap Multistage compressor unit and method for regulating such multistage compressor unit
WO2002025115A1 (en) * 2000-09-25 2002-03-28 Compair Uk Limited Multi-stage screw compressor

Also Published As

Publication number Publication date
EP1975415A2 (en) 2008-10-01
JP5071967B2 (en) 2012-11-14
JP2008255799A (en) 2008-10-23
US20080240953A1 (en) 2008-10-02
CN101275564A (en) 2008-10-01

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