EP0638723B1 - Mechanischer Verdichteranlage - Google Patents

Mechanischer Verdichteranlage Download PDF

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Publication number
EP0638723B1
EP0638723B1 EP94110281A EP94110281A EP0638723B1 EP 0638723 B1 EP0638723 B1 EP 0638723B1 EP 94110281 A EP94110281 A EP 94110281A EP 94110281 A EP94110281 A EP 94110281A EP 0638723 B1 EP0638723 B1 EP 0638723B1
Authority
EP
European Patent Office
Prior art keywords
line
liquid
chamber
compressor
suction
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 - Lifetime
Application number
EP94110281A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0638723A1 (de
Inventor
Günter Dipl.-Ing. Holzheimer (FH)
Manfred Dipl.-Ing. Stretz (Fh)
Hans René Dipl.-Ing. Neubauer
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.)
Siemens AG
Original Assignee
Siemens AG
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
Priority claimed from DE19934327003 external-priority patent/DE4327003C1/de
Priority claimed from DE9404463U external-priority patent/DE9404463U1/de
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0638723A1 publication Critical patent/EP0638723A1/de
Application granted granted Critical
Publication of EP0638723B1 publication Critical patent/EP0638723B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04C19/00—Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids
    • F04C19/001—General arrangements, plants, flowsheets
    • 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
    • F04C19/00—Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids
    • F04C19/004—Details concerning the operating liquid, e.g. nature, separation, cooling, cleaning, control of the supply
    • 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

  • Such a compressor system is known from WO-A-86/07416.
  • an evaporable liquid is introduced into the suction line upstream of the compressor.
  • an after-cooling unit is provided in the pressure line connected to the compressor.
  • This post-cooling unit consists of a heat exchanger equipped with a fan. Such a post-cooling unit requires not only a considerable installation effort but also a not inconsiderable energy requirement for the fan of the heat exchanger.
  • a cooling system is known from US-A-2,385,667, in which a cooling unit consisting of a first and a second chamber is used.
  • a cooling unit consisting of a first and a second chamber is used.
  • one chamber is connected in series with the suction line leading to the compressor and the other chamber with the pressure line leading away from the compressor. In this way, a certain cooling of the gas heated by the compression process is achieved by the still uncompressed gas.
  • the object of the present invention is to provide a compressor system with a mechanical compressor, in which the compressed gaseous medium can be intensively cooled with a low energy requirement and only with a small additional installation effort.
  • the exhaust air in the pressure line is warmer than the suction air in the suction line.
  • a heat exchange takes place between the exhaust air and the suction air in the post-cooling unit.
  • liquid preferably water
  • the liquid evaporating during the injection process leads to partial or complete saturation of the suction air in the suction line.
  • the heat of vaporization required to evaporate the injected liquid is extracted from the suction air, as a result of which the suction air flowing in the suction line cools down. This increases the temperature gradient between the suction air and the exhaust air, which means that the exhaust air is cooled more due to the improved heat exchange.
  • the principle of exhaust air cooling according to the invention is not only limited to rotary vane and Roots pumps, but is also suitable for other mechanical compressors, such as liquid ring machines.
  • this principle offers the advantage that an additional proportion of vaporous operating fluid is condensed out of the exhaust air due to the stronger cooling of the exhaust air. After their condensation, the operating liquid can be returned to the liquid circuit or the gas flow.
  • the principle of exhaust air cooling according to the invention therefore not only leads to the desired cooling of the exhaust air, but also enables the operating fluid to be recovered. As a result, the operating fluid circuit does not have to be supplemented or only with a reduced amount of operating fluid. A constantly increasing concentration of chemical components, solids and lime in the operating fluid as well as the resulting corrosion, contamination and calcification are thus reliably prevented or delayed.
  • a liquid ring machine as a mechanical compressor offers a number of advantages over a rotary vane pump.
  • a liquid ring machine is less sensitive to contamination from solids caused by the pumped medium than a rotary vane pump.
  • a liquid ring machine functions as a gas scrubber, since it binds the solids of the medium (e.g. dust) in the operating liquid circuit and separates it in the separator (location with the lowest flow rate).
  • the impeller of a liquid ring machine works without contact (sealing medium is the operating fluid) and, in contrast to the rotary vane pump, is largely wear-free.
  • the liquid ring machine 1 also has an after-cooling unit 7, which is connected with its first chamber 71 into the suction line 2 and with its second chamber 72 into the exhaust air line 5.
  • a condensate line 8 branches off from the end 51 of the exhaust air line 5 which is led out of the after-cooling unit 7, through which the condensed operating liquid enters the liquid separator 4 and thus into the operating liquid circuit (solid line) and / or in the gas flow (dashed line) is returned.
  • the arrangement of the after-cooling unit 7 is not limited to the exemplary embodiment shown in the drawing.
  • the aftercooling unit 7 can also sit directly on the exhaust port of the separator 4. This has the advantage that the condensate runs back directly into the separator 4 due to gravity. This saves the condensate line.
  • Operating fluid is injected into the suction line 2 in front of the after-cooling unit 7 via an injection line 9, which branches off from the return line 6 in the exemplary embodiment shown.
  • the principle of exhaust air cooling according to the invention is not only limited to liquid ring machines, but is suitable for all mechanical compressors.
  • This is shown in FIG. 2 using the example of a dry-running positive displacement pump, which is also designated by 1.
  • a suction line 2 is connected to a first connection opening 11 of the displacement pump 1.
  • a pressure line 3 is connected to a second, oppositely acting connection opening 12 of the positive displacement pump 1, which in the embodiment shown in FIG. 2 opens directly into an aftercooling unit 7.
  • the after-cooling unit 7 consists of two separate chambers 71 and 72. The after-cooling unit 7 is switched with its first chamber 71 into the suction line 2 and with its second chamber 72 into the pressure line 3.
EP94110281A 1993-08-11 1994-07-01 Mechanischer Verdichteranlage Expired - Lifetime EP0638723B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19934327003 DE4327003C1 (de) 1993-08-11 1993-08-11 Flüssigkeitsringmaschine
DE4327003 1993-08-11
DE9404463U 1994-03-16
DE9404463U DE9404463U1 (de) 1994-03-16 1994-03-16 Mechanischer Verdichter

Publications (2)

Publication Number Publication Date
EP0638723A1 EP0638723A1 (de) 1995-02-15
EP0638723B1 true EP0638723B1 (de) 1997-06-04

Family

ID=25928533

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94110281A Expired - Lifetime EP0638723B1 (de) 1993-08-11 1994-07-01 Mechanischer Verdichteranlage

Country Status (7)

Country Link
US (1) US5511953A (ja)
EP (1) EP0638723B1 (ja)
JP (1) JP3515998B2 (ja)
CN (1) CN1040683C (ja)
AT (1) ATE154103T1 (ja)
DE (1) DE59402988D1 (ja)
ES (1) ES2102731T3 (ja)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2106611T3 (es) * 1994-12-06 1997-11-01 Siemens Ag Grupo compresor.
DE19631766A1 (de) * 1996-08-06 1998-02-12 Siemens Ag Verdichteraggregat
US6692234B2 (en) * 1999-03-22 2004-02-17 Water Management Systems Pump system with vacuum source
DE19942265A1 (de) * 1999-09-04 2001-03-08 Alup Kompressoren Gmbh Verdichteranlage und Verfahren zur Verdichtung eines Gases
AU2001284325A1 (en) * 2000-08-31 2002-03-13 Barthlo Von_Moltitz Harmse A method of treating an effluent gas stream, and apparatus for use in such method
DE20015744U1 (de) 2000-09-12 2001-01-25 Rietschle Werner Gmbh & Co Kg Pumpe mit Wassereinspeisung
CN102836903B (zh) * 2012-08-27 2015-01-21 泰州市长征冷机管件有限公司 冰箱压缩机内排气管数控自动弯管机
TWI527684B (zh) 2013-07-17 2016-04-01 復盛股份有限公司 空氣壓縮系統及其冷卻結構
CN104343663B (zh) * 2013-07-23 2016-07-13 复盛股份有限公司 空气压缩系统及其冷却结构
CA2973263A1 (en) * 2015-01-08 2016-07-14 Gardner Denver Nash Llc Low pressure sealing liquid entry area in a compressor type liquid ring pump
CN112944704A (zh) * 2019-12-10 2021-06-11 珠海格力电器股份有限公司 具有降温装置的制冷系统及控制方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1991548A (en) * 1930-09-30 1935-02-19 Prest O Lite Co Inc Gas pumping system
US2385667A (en) * 1944-08-24 1945-09-25 Robert C Webber Refrigerating system
GB934490A (en) * 1959-11-20 1963-08-21 Denco Miller Ltd Improvements in refrigeration equipment
GB985951A (en) * 1962-04-05 1965-03-10 Hick Hargreaves & Company Ltd Liquid ring pumps
US3765755A (en) * 1971-10-18 1973-10-16 Kane Corp Du Microimage viewer
DE2841906C2 (de) * 1978-09-26 1980-02-21 Siemens Ag, 1000 Berlin Und 8000 Muenchen Flüssigkeitsringverdichter oder -vakuumpumpe
DE3425616A1 (de) * 1984-07-12 1986-01-23 Loewe Pumpenfabrik GmbH, 2120 Lüneburg Anordnung zur minimierung des kuehlfluessigkeitsverbrauches insbes. bei fluessigkeitsring-vakuumpumpen o.dgl.
SE452790B (sv) * 1985-06-07 1987-12-14 Svenska Rotor Maskiner Ab Oljefri gaskompressor
DE59006448D1 (de) * 1990-11-23 1994-08-18 Siemens Ag Flüssigkeitsringpumpe.

Also Published As

Publication number Publication date
DE59402988D1 (de) 1997-07-10
ES2102731T3 (es) 1997-08-01
JPH0777183A (ja) 1995-03-20
JP3515998B2 (ja) 2004-04-05
ATE154103T1 (de) 1997-06-15
US5511953A (en) 1996-04-30
EP0638723A1 (de) 1995-02-15
CN1040683C (zh) 1998-11-11
CN1108357A (zh) 1995-09-13

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