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WO2003019010A1 - Procede de protection d'un compresseur volumetrique a injection de liquide - Google Patents

Procede de protection d'un compresseur volumetrique a injection de liquide Download PDF

Info

Publication number
WO2003019010A1
WO2003019010A1 PCT/BE2002/000141 BE0200141W WO03019010A1 WO 2003019010 A1 WO2003019010 A1 WO 2003019010A1 BE 0200141 W BE0200141 W BE 0200141W WO 03019010 A1 WO03019010 A1 WO 03019010A1
Authority
WO
WIPO (PCT)
Prior art keywords
temperature
liquid
outlet
injection
protection
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.)
Ceased
Application number
PCT/BE2002/000141
Other languages
English (en)
Other versions
WO2003019010A8 (fr
Inventor
Bart Anton Lode Talboom
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.)
Atlas Copco Airpower NV
Original Assignee
Atlas Copco Airpower NV
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 Atlas Copco Airpower NV filed Critical Atlas Copco Airpower NV
Publication of WO2003019010A1 publication Critical patent/WO2003019010A1/fr
Anticipated expiration legal-status Critical
Publication of WO2003019010A8 publication Critical patent/WO2003019010A8/fr
Ceased 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
    • F04C28/28—Safety arrangements; Monitoring
    • 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
    • F04C18/14—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 toothed rotary pistons
    • F04C18/16—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 toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • 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
    • F04C28/06—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for stopping, starting, idling or no-load operation
    • 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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • 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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0007—Injection of a fluid in the working chamber for sealing, cooling and lubricating
    • 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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/04—Heating; Cooling; Heat insulation
    • F04C29/042—Heating; Cooling; Heat insulation by injecting a fluid

Definitions

  • This invention relates to a method for the protection of a volumetric liquid-injected compressor of the type comprising a compressor element driven by a motor, a pressure conduit connected to the compressor element, a separator for injection liquid erected in this pressure conduit, an injection conduit for injecting the separated injection liquid into the compressor element, and a cooler in this injection conduit, according to which method at least the outlet temperature of the compressed gas is measured and, depending on at least this temperature and on a limit value, it is determined whether the motor has to be stopped.
  • injection liquid for example, water
  • This injection liquid also serves as a sealing agent between the two rotors of the compressor element.
  • This liquid is discharged along with the compressed gas and separated from the gas in a separator or vessel and re-used for injection.
  • the internal cooling during compression fails, and the temperature of the compressed gas, when exiting the compressor element, immediately becomes very high. Depending on the internal pressure ratio of the compressor element, this temperature can reach 250 to 300°C.
  • a thermostatic valve in the injection conduit provides for that the compressor element reaches its normal temperature as soon as possible, which temperature can be set closely to the aforementioned limit value.
  • the injection temperature and, consequently, also the temperature of the compressed gas at the outlet of the compressor element depend on the environmental temperature. It is, in fact, desirable to keep the temperature of the injection water as low as possible in order to approach an isothermic compression as closely as possible. This has a favourable influence onto the energy output of the compression.
  • the invention in particular relates to such compressors without thermostatic regulation.
  • the present invention aims at offering a solution for the above-mentioned problem and at providing a method for protecting a volumetric compressor, in which said temperature peaks are avoided.
  • the volumetric water-injected compressor with, thus, water as an injection liquid substantially consists of a compressor element 1, a motor 2 driving this compressor element 1 , a pressure conduit 3 which is connected to the compressor element 1 and in which successively a vessel which is a water separator 4 and a cooler 5 are erected, and an injection conduit 6, for returning the separated water and injecting it into the compressor element 1, in which a cooler 7 is erected.
  • the coolers 5 and 7 are liquid-cooled coolers with separate radiators 8 and 9, which are erected in the pressure conduit 3 and the injection conduit 6, respectively.
  • the radiators 8 and 9 are connected with their inlet to a common supply conduit 10 for cooling liquid, mostly cooling water, and connected with their outlet to a common discharge conduit 11 for this cooling liquid.
  • the compressor comprises a protection against excessive temperatures by means of an electronic control device 12 which controls the motor 2 and to which two temperature sensors 13 and 14 are connected.
  • Temperature sensor 13 is arranged at the outlet of the compressor element 1 in the pressure conduit 3, and temperature sensor 14 is provided in the outlet 15 for the cooling water of the radiator 9 and, thus, of the cooler 7.
  • the outlet temperature of the compressed gas is measured by means of temperature sensor 13, as well as the outlet temperature of the cooling water of the cooler 7 is measured by means of temperature sensor 14.
  • control device 12 By the control device 12, the difference between these two temperatures is determined and compared to a put-in limit value of the temperature difference. If this limit value is reached or exceeded, then the control device 12 stops the motor 2.
  • the protection level at which the motor 2 is stopped is closer to the normal value of the outlet temperature of the air, at the outlet of the compressor element, as a consequence of which the influence of a sudden temperature increase only results in a minor delay of the protection.
  • the control device 12 also adds said limit value for the temperature difference to a chosen limit value of the environmental temperature. The sum thereof provides an absolute limit and, when it is reached or exceeded, the control device 12 also commands the stopping of the motor 2.
  • This last-mentioned outlet temperature of the cooling water is a measure for the cooling water temperature at the inlet and of the cooling water flow rate.
  • control device 12 commands to stop the motor 2.
  • an. absolute limit for the outlet temperature is maintained.
  • the control device 12 also stops the motor 2 when this absolute limit is reached or exceeded.

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)

Abstract

L'invention concerne un procédé de protection d'un compresseur volumétrique à injection de liquide du type comprenant un élément de compresseur (1) entraîné par un moteur (2), un conduit de pression (3), un séparateur (4) destiné au liquide d'injection et dressé dans ce conduit de pression (3), un conduit d'injection (6) permettant d'injecter le liquide d'injection séparé dans l'élément de compresseur (1), ainsi qu'un refroidisseur refroidi par le liquide (7) et situé dans ce conduit d'injection (6). La température de l'orifice de sortie du gaz comprimé est mesurée et, en fonction d'au moins cette température et d'une valeur limite, on détermine si le moteur (2) doit être arrêté. La température ambiante dans l'orifice de sortie (15) destinée à l'eau de refroidissement du radiateur (9) est mesurée et la valeur limite est rendue fonction de cette température ambiante.
PCT/BE2002/000141 2001-08-30 2002-08-29 Procede de protection d'un compresseur volumetrique a injection de liquide Ceased WO2003019010A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2001/0566 2001-08-30
BE2001/0566A BE1014354A3 (nl) 2001-08-30 2001-08-30 Werkwijze voor het beveiligen van een volumetrische vloeistofgeinjecteerde compressor.

Publications (2)

Publication Number Publication Date
WO2003019010A1 true WO2003019010A1 (fr) 2003-03-06
WO2003019010A8 WO2003019010A8 (fr) 2005-03-03

Family

ID=3897088

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/BE2002/000140 Ceased WO2003019011A1 (fr) 2001-08-30 2002-08-29 Procede de protection d'un compresseur volumetrique a injection de liquide
PCT/BE2002/000141 Ceased WO2003019010A1 (fr) 2001-08-30 2002-08-29 Procede de protection d'un compresseur volumetrique a injection de liquide

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/BE2002/000140 Ceased WO2003019011A1 (fr) 2001-08-30 2002-08-29 Procede de protection d'un compresseur volumetrique a injection de liquide

Country Status (2)

Country Link
BE (1) BE1014354A3 (fr)
WO (2) WO2003019011A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103388584A (zh) * 2013-07-29 2013-11-13 无锡方盛换热器制造有限公司 一种减小应力及缓冲压力的散热器
EP2960512A1 (fr) * 2012-02-28 2015-12-30 Atlas Copco Airpower Dispositif de compresseur, ainsi que l'utilisation d'un tel ensemble
WO2017174131A1 (fr) * 2016-04-06 2017-10-12 Bitzer Kühlmaschinenbau Gmbh Unité compresseur et son procédé de fonctionnement
US9850896B2 (en) 2012-02-28 2017-12-26 Atlas Copco Airpower, Naamloze Vennootschap Screw compressor
EP3092411B1 (fr) 2014-01-10 2019-05-22 ATLAS COPCO AIRPOWER, naamloze vennootschap Procédé permettant d'empêcher la présence de condensat dans l'huile d'un compresseur à injection d'huile et compresseur dans lequel un tel procédé est appliqué
US11015602B2 (en) 2012-02-28 2021-05-25 Atlas Copco Airpower, Naamloze Vennootschap Screw compressor

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4336001A (en) * 1978-09-19 1982-06-22 Frick Company Solid state compressor control system
US4502833A (en) * 1981-10-21 1985-03-05 Hitachi, Ltd. Monitoring system for screw compressor
US5347821A (en) * 1993-07-23 1994-09-20 American Standard Inc. Apparatus and method of oil charge loss protection for compressors
JPH1077980A (ja) * 1996-08-30 1998-03-24 Ishikawajima Harima Heavy Ind Co Ltd 空気圧縮設備
US5797980A (en) * 1996-03-27 1998-08-25 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Process and installation for the treatment of atomospheric air
US5884494A (en) * 1997-09-05 1999-03-23 American Standard Inc. Oil flow protection scheme
JPH11336684A (ja) * 1998-05-22 1999-12-07 Hitachi Ltd オイルフリースクリュー圧縮機のジャケット冷却装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4034570A (en) * 1975-12-29 1977-07-12 Heil-Quaker Corporation Air conditioner control
US4045973A (en) * 1975-12-29 1977-09-06 Heil-Quaker Corporation Air conditioner control
JPH0443893A (ja) * 1990-06-11 1992-02-13 Hitachi Ltd 換気量制御装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4336001A (en) * 1978-09-19 1982-06-22 Frick Company Solid state compressor control system
US4502833A (en) * 1981-10-21 1985-03-05 Hitachi, Ltd. Monitoring system for screw compressor
US5347821A (en) * 1993-07-23 1994-09-20 American Standard Inc. Apparatus and method of oil charge loss protection for compressors
US5797980A (en) * 1996-03-27 1998-08-25 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Process and installation for the treatment of atomospheric air
JPH1077980A (ja) * 1996-08-30 1998-03-24 Ishikawajima Harima Heavy Ind Co Ltd 空気圧縮設備
US5884494A (en) * 1997-09-05 1999-03-23 American Standard Inc. Oil flow protection scheme
JPH11336684A (ja) * 1998-05-22 1999-12-07 Hitachi Ltd オイルフリースクリュー圧縮機のジャケット冷却装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 08 30 June 1998 (1998-06-30) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 03 30 March 2000 (2000-03-30) *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10197058B2 (en) 2012-02-28 2019-02-05 Atlas Copco Airpower, Naamloze Vennootschap Screw compressor
US11015602B2 (en) 2012-02-28 2021-05-25 Atlas Copco Airpower, Naamloze Vennootschap Screw compressor
EP2960512A1 (fr) * 2012-02-28 2015-12-30 Atlas Copco Airpower Dispositif de compresseur, ainsi que l'utilisation d'un tel ensemble
US9850896B2 (en) 2012-02-28 2017-12-26 Atlas Copco Airpower, Naamloze Vennootschap Screw compressor
US10151313B2 (en) 2012-02-28 2018-12-11 Atlas Copco Airpower, Naamloze Vennootschap Compressor device as well as the use of such a compressor device
US10480511B2 (en) 2012-02-28 2019-11-19 Atlas Copco Airpower, Naamloze Vennootschap Screw compressor
CN103388584A (zh) * 2013-07-29 2013-11-13 无锡方盛换热器制造有限公司 一种减小应力及缓冲压力的散热器
EP3092411B1 (fr) 2014-01-10 2019-05-22 ATLAS COPCO AIRPOWER, naamloze vennootschap Procédé permettant d'empêcher la présence de condensat dans l'huile d'un compresseur à injection d'huile et compresseur dans lequel un tel procédé est appliqué
CN109072914A (zh) * 2016-04-06 2018-12-21 比泽尔制冷设备有限公司 压缩机单元和用于运行压缩机单元的方法
EP4245997A3 (fr) * 2016-04-06 2023-12-27 BITZER Kühlmaschinenbau GmbH Unité de compresseur et procédé de fonctionnement d'une unité de compresseur
WO2017174131A1 (fr) * 2016-04-06 2017-10-12 Bitzer Kühlmaschinenbau Gmbh Unité compresseur et son procédé de fonctionnement
RU2729967C2 (ru) * 2016-04-06 2020-08-13 Битцер Кюльмашиненбау Гмбх Компрессорный модуль и способ эксплуатации компрессорного модуля
US11460026B2 (en) 2016-04-06 2022-10-04 Bitzer Kuehlmaschinenbau Gmbh Compressor unit and method for operating a compressor unit
CN109072914B (zh) * 2016-04-06 2025-02-14 比泽尔制冷设备有限公司 压缩机单元和用于运行压缩机单元的方法

Also Published As

Publication number Publication date
BE1014354A3 (nl) 2003-09-02
WO2003019011A1 (fr) 2003-03-06
WO2003019010A8 (fr) 2005-03-03

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