EP0000131B1 - Procédé et dispositif de lubrification de compresseurs - Google Patents

Procédé et dispositif de lubrification de compresseurs Download PDF

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Publication number
EP0000131B1
EP0000131B1 EP78100127A EP78100127A EP0000131B1 EP 0000131 B1 EP0000131 B1 EP 0000131B1 EP 78100127 A EP78100127 A EP 78100127A EP 78100127 A EP78100127 A EP 78100127A EP 0000131 B1 EP0000131 B1 EP 0000131B1
Authority
EP
European Patent Office
Prior art keywords
branch
oil
bearings
gear train
valve
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.)
Expired
Application number
EP78100127A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0000131A1 (fr
Inventor
Fernand Libis
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.)
Alstom SA
Original Assignee
Alsthom Atlantique SA
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 Alsthom Atlantique SA filed Critical Alsthom Atlantique SA
Publication of EP0000131A1 publication Critical patent/EP0000131A1/fr
Application granted granted Critical
Publication of EP0000131B1 publication Critical patent/EP0000131B1/fr
Expired legal-status Critical Current

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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
    • 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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/021—Control systems for the circulation of the lubricant
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S418/00—Rotary expansible chamber devices
    • Y10S418/01—Non-working fluid separation

Definitions

  • the present invention relates to a method of lubricating compressors, in particular of the helical type.
  • the quantity of oil necessary for this purpose is a function of the quantity of calories to be removed, since the temperature of the mixture of air and oil discharged from the compressor must be within a well-defined temperature range, in order to avoid water condensation in the oil tank on the one hand, and auto-ignition of the air-oil mixture on the other.
  • the object of the invention is to simplify the auxiliary circuit and, therefore, to make it less expensive and more reliable.
  • the subject of the invention is therefore a method of lubricating a compressor with a fluid of the type comprising a compression chamber in which at least two rotors are driven in rotation by at least one gear and each rotate on two end bearings , said bearings and gear being housed in flanges acting as scrolls, namely a suction flange and a delivery flange, said gear being linked to a driving shaft, the sealing of said shaft being ensured, suction side, by a seal with friction grain, characterized in that, under operating conditions under load, said compression chamber, said bearings, said gear, as well as said friction grain seal are supplied with oil from a separating tank and under high pressure and substantially equal to that prevailing in said separator tank, while under idling conditions said compression chamber and said bearings housed in said delivery flange ent are supplied with oil from said separator tank but under low pressure, the bearings, said gear, as well as said friction grain seal housed in said suction flange being independently supplied with oil coming directly from the exhaust or discharge
  • the invention also relates to a device for implementing the method according to claim 1, characterized in that it comprises two circuits, a main circuit and a secondary circuit, said main circuit comprising a pipe having its source in said separator tank of oil and subdivided into three branches, a first branch supplying said compression chamber, a second branch supplying said bearings, said gear and said friction grain seal housed in said suction flange via a valve, and a third branch supplying said bearings housed in said delivery flange, said secondary circuit comprising a pipe originating directly from the compressor exhaust, leading to a valve, then subdivided into two branches, a first branch supplying the bearings and the gear housed in said suction flange, by means of a valve, e t a second bypass supplying the rubbing grain seal.
  • the compressor lubricated in the known manner and represented in FIG. 1 therefore comprises a compression block 1 in which two helical rotors rotate, a male rotor 2 and a female rotor 3, the male rotor 2 being driven by means of a motor 4 and by means of a gear 5 cooperating with a universal joint 6, housings such as 7 ensuring sealing
  • This line 9 opens into an oil separator tank 10 above, of course, the oil level 11. Compressed air is therefore evacuated to the place of use via the pipe 12 according to the arrows, after having abandoned the oil particles entrained at the level of a filter 13.
  • the suction 8 is therefore partially obstructed in order to reduce the pressure in the separator tank 10 and consequently the compression power.
  • the Applicant has therefore sought to remedy such a drawback and to significantly reduce the power consumed when idling, and this by implementing a simple, inexpensive and reliable additional lubrication circuit.
  • the compressor shown in FIG. 2 comprises a casing 20 or compression block inside which two rotors move in rotation, a male rotor 21 and a female rotor 22 of helical type. These rotors rotate on ball or roller bearings, namely bearings 23 and 24 for the male rotor 21 and bearings 25 and 26 for the female rotor 22.
  • Such bearings are housed in flanges 27 and 28, the flange 27 acting as a suction scroll, while the flange 28 assumes the role of discharge or exhaust scroll.
  • the male rotor 21 has a shaft end (not shown) on which a multiplier gear train 29 is keyed linked to a driving shaft 30 journalled on bearings 31 and 32, the seal being ensured by means of a seal grain rubbing 33.
  • two lubrication circuits are used, a main circuit and a secondary or additional circuit.
  • the pressure drops in said branches are predetermined so that the oil flow is sufficient.
  • the valve V2 is closed, but the oil still feeds the compression chamber 20 as well as the various organs on the discharge side by the branches 40a and 40c according to, of course, a low flow rate which is nevertheless sufficient.
  • the secondary lubrication circuit has a high conductance, taking into account the relatively low pressure prevailing at point B.
  • valves V1 and V3 close, the valve V2 opens and so on.
  • the no-load power is divided by a coefficient at least equal to 2.5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Compressor (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
EP78100127A 1977-06-17 1978-06-12 Procédé et dispositif de lubrification de compresseurs Expired EP0000131B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7718646 1977-06-17
FR7718646A FR2401338B1 (enrdf_load_stackoverflow) 1977-06-17 1977-06-17

Publications (2)

Publication Number Publication Date
EP0000131A1 EP0000131A1 (fr) 1979-01-10
EP0000131B1 true EP0000131B1 (fr) 1980-11-26

Family

ID=9192226

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78100127A Expired EP0000131B1 (fr) 1977-06-17 1978-06-12 Procédé et dispositif de lubrification de compresseurs

Country Status (5)

Country Link
US (1) US4173440A (enrdf_load_stackoverflow)
EP (1) EP0000131B1 (enrdf_load_stackoverflow)
DE (1) DE2860337D1 (enrdf_load_stackoverflow)
FR (1) FR2401338B1 (enrdf_load_stackoverflow)
IT (1) IT1209443B (enrdf_load_stackoverflow)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4341506A (en) * 1979-08-14 1982-07-27 Gutehoffnungshutte Sterkrade A.G. Apparatus for the generation of compressed air
US4439121A (en) * 1982-03-02 1984-03-27 Dunham-Bush, Inc. Self-cleaning single loop mist type lubrication system for screw compressors
SE450150B (sv) * 1982-04-13 1987-06-09 Stal Refrigeration Ab Kompressor av hermetisk typ
US4768355A (en) * 1987-01-27 1988-09-06 Ford Motor Company Accumulator with refrigerant processing cartridge for automotive air conditioning system
US4800737A (en) * 1987-04-17 1989-01-31 Ford Motor Company Automotive air conditioning system accumulator with refrigerant processing cartridge including evaporator pressure regulator
US4761123A (en) * 1987-06-11 1988-08-02 Ingersoll-Rand Company Lubrication arrangement, in an air compressor
JPH02275089A (ja) * 1989-04-13 1990-11-09 Kobe Steel Ltd スクリュ式真空ポンプ
US5028220A (en) * 1990-08-13 1991-07-02 Sullair Corpoation Cooling and lubrication system for a vacuum pump
US6318959B1 (en) * 1998-12-22 2001-11-20 Unozawa-Gumi Iron Works, Ltd. Multi-stage rotary vacuum pump used for high temperature gas
DE20015744U1 (de) * 2000-09-12 2001-01-25 Werner Rietschle GmbH + Co. KG, 79650 Schopfheim Pumpe mit Wassereinspeisung
BE1014297A3 (nl) * 2001-07-13 2003-08-05 Atlas Copco Airpower Nv Watergeinjecteerde schroefcompressor.
US6520758B1 (en) 2001-10-24 2003-02-18 Ingersoll-Rand Company Screw compressor assembly and method including a rotor having a thrust piston
US20040112679A1 (en) * 2002-12-13 2004-06-17 Centers Steven D. System and method for lubricant flow control in a variable speed compressor package
US7553142B2 (en) * 2004-02-25 2009-06-30 Carrier Corporation Lubrication system for compressor
US7690482B2 (en) * 2005-02-07 2010-04-06 Carrier Corporation Screw compressor lubrication
US20090129956A1 (en) * 2007-11-21 2009-05-21 Jean-Louis Picouet Compressor System and Method of Lubricating the Compressor System
JP5103246B2 (ja) * 2008-01-24 2012-12-19 株式会社神戸製鋼所 スクリュ圧縮機
KR101430848B1 (ko) * 2010-01-29 2014-08-18 울박 키코 인코포레이션 펌프
DE102010002649A1 (de) 2010-03-08 2011-09-08 Bitzer Kühlmaschinenbau Gmbh Schraubenverdichter
US10436104B2 (en) * 2014-05-23 2019-10-08 Eaton Intelligent Power Limited Supercharger
CN107002679B (zh) * 2014-12-17 2019-12-13 开利公司 具有油关闭阀的螺杆压缩机和方法
CN104963870A (zh) * 2015-07-27 2015-10-07 珠海格力电器股份有限公司 排气轴承座、螺杆压缩机及空调机组
BR112018011739B1 (pt) * 2015-12-11 2022-12-20 Atlas Copco Airpower, Naamloze Vennootschap Método para controlar a injeção de líquido de um dispositivo compressor ou dispositivo expansor, um dispositivo compressor ou dispositivo expansor injetado com líquido e um elemento compressor ou elemento expansor injetado com líquido
BE1023673B1 (nl) * 2015-12-11 2017-06-12 Atlas Copco Airpower Naamloze Vennootschap Werkwijze voor het regelen van de vloeistofinjectie van een compressorinrichting, een vloeistofgeïnjecteerde compressorinrichting en een vloeistofgeïnjecteerd compressorelement
BE1023714B1 (nl) * 2015-12-11 2017-06-26 Atlas Copco Airpower Naamloze Vennootschap Werkwijze voor het regelen van de vloeistofinjectie van een compressor- of expanderinrichting, een vloeistofgeïnjecteerde compressor- of expanderinrichting en een vloeistofgeïnjecteerd compressor- of expanderelement
JP6686144B2 (ja) * 2015-12-11 2020-04-22 アトラス コプコ エアーパワー, ナームローゼ フェンノートシャップATLAS COPCO AIRPOWER, naamloze vennootschap 圧縮機の液体噴射を調整する方法、液体噴射式圧縮機及び液体噴射式圧縮機要素
CN110219803B (zh) * 2019-07-18 2024-09-06 珠海格力节能环保制冷技术研究中心有限公司 压缩机、空调器
US11448220B2 (en) 2019-09-27 2022-09-20 Ingersoll-Rand Industrial U.S., Inc. Airend having a lubricant flow valve and controller

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3260444A (en) * 1964-03-30 1966-07-12 Gardner Denver Co Compressor control system
GB1212015A (en) * 1967-05-03 1970-11-11 Svenksa Rotor Maskiner Aktiebo Improvements in and relating to meshing screw-rotor compressors
US3482768A (en) * 1968-02-28 1969-12-09 Gardner Denver Co Compressor control system
FR1562714A (enrdf_load_stackoverflow) * 1968-05-15 1969-04-04
FR1574479A (enrdf_load_stackoverflow) * 1968-07-17 1969-07-11
US3556697A (en) * 1969-04-10 1971-01-19 Ingersoll Rand Co Sealing arrangement for vacuum pump
US3653191A (en) * 1969-10-16 1972-04-04 Gardner Denver Co Receiver-separator unit for liquid injected gas compressor
DE2123011A1 (de) * 1971-05-10 1972-12-14 Audi NSU Auto Union AG, 7107 Neckars ulm, Wankel GmbH, 8990 Lindau Kreiskolben Brennkraftmaschine mit ölgekühltem Kolben
GB1383569A (en) * 1971-08-25 1974-02-12 Hokuetsu Kogyo Co Minimising power consumption of oillubricated rotary compressors
US4063855A (en) * 1976-05-03 1977-12-20 Fuller Company Compressor capacity and lubrication control system

Also Published As

Publication number Publication date
IT7824453A0 (it) 1978-06-12
FR2401338B1 (enrdf_load_stackoverflow) 1980-03-14
US4173440A (en) 1979-11-06
IT1209443B (it) 1989-08-30
FR2401338A1 (enrdf_load_stackoverflow) 1979-03-23
DE2860337D1 (en) 1981-02-12
EP0000131A1 (fr) 1979-01-10

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