EP0437637A1 - Pompe à anneau liquide - Google Patents

Pompe à anneau liquide Download PDF

Info

Publication number
EP0437637A1
EP0437637A1 EP89121459A EP89121459A EP0437637A1 EP 0437637 A1 EP0437637 A1 EP 0437637A1 EP 89121459 A EP89121459 A EP 89121459A EP 89121459 A EP89121459 A EP 89121459A EP 0437637 A1 EP0437637 A1 EP 0437637A1
Authority
EP
European Patent Office
Prior art keywords
operating fluid
separator
liquid ring
heat exchanger
condensate
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Withdrawn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
EP89121459A
Other languages
German (de)
English (en)
Inventor
Johannes Dipl.-Ing. Zaugg
Günter Dipl.-Ing. Holzheimer (FH)
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.)
Kkw Kulmbacher Klimagerate-Werk GmbH
Siemens AG
Siemens Corp
Original Assignee
Kkw Kulmbacher Klimagerate-Werk GmbH
Siemens AG
Siemens 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 Kkw Kulmbacher Klimagerate-Werk GmbH, Siemens AG, Siemens Corp filed Critical Kkw Kulmbacher Klimagerate-Werk GmbH
Priority to EP89121459A priority Critical patent/EP0437637A1/fr
Priority to DE19904036516 priority patent/DE4036516A1/de
Publication of EP0437637A1 publication Critical patent/EP0437637A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • F04C19/004—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

  • the invention relates to a liquid ring pump according to the preamble of claim 1.
  • a liquid ring of operating liquid circulates through an impeller in a housing.
  • the liquid ring stands out on the suction side from the impeller hub, so that gas to be pumped can enter as the pumping gas.
  • the liquid ring approaches the impeller hub again, which means that compressed gas can be pushed out.
  • the liquid ring pump works with a downstream separator for the recovery of operating fluid.
  • the return line of the separator is led through a heat exchanger to cool down the operating fluid.
  • such liquid ring pumps with heat exchangers have replaced liquid ring pumps with so-called fresh water operation for reasons of economy and environmental protection.
  • Liquid ring pumps are particularly suitable for the oil-free compression of dry gases that are partially or 100% saturated with water vapor.
  • the pumping speed and the suction pressure change with the temperature of the operating liquid, since the vapor pressure is temperature-dependent.
  • Usual operating characteristics are recorded for a suction of air with 100% relative humidity and a temperature of 20 ° C as well as for an operating liquid from water at a temperature of 15 ° C.
  • the operating fluid also has the further function of dissipating the compression heat and, if necessary, sealing gaps between the impeller and control discs and, if appropriate, also internal parts of a shaft seal cool.
  • the operating fluid that is pushed out can be separated from the conveying gas in a downstream separator.
  • the invention has for its object to develop a liquid ring pump that works more economically and less sensitive to changes in temperature and relative humidity of the conveying gas.
  • the solution to the stated problem consists in a liquid ring pump according to claim 1.
  • the heat output of the heat exchanger is regulated as a function of a level sensor on the condensate of the separator in such a way that the cooling capacity increases as the condensate level falls and the cooling capacity decreases as the condensate level increases .
  • the recovered operating fluid in the heat exchanger is at a temperature in the order of magnitude for an operating fluid made of water Cool down to 5 ° C. If you want to make compromises for special reasons, you can arrange a drain valve and an inlet valve in the return line between the separator and heat exchanger in order to work in a superimposed mode with operating fluid to be supplied and drained.
  • the liquid ring pump 1 works with a downstream separator 2 for the recovery of operating fluid.
  • the recovered operating fluid is fed into a return line 3 through a heat exchanger 4 for cooling the operating fluid.
  • Operating fluid is recovered from the conveying gas 5 in the separator 2.
  • the level of the condensate is detected by a level sensor 6, which is functionally part of a controller 7.
  • the controller 7 regulates the cooling capacity of the heat exchanger 4 in such a way that the cooling capacity is increased when the condensate level drops and the cooling capacity is reduced when the condensate level increases.
  • Water is usually used as the operating fluid.
  • the heat exchanger 4 In order to convey air as a conveying gas which has, for example, 20 ° C. and a relative humidity of 50% on the suction side of the liquid ring pump 1 and to convey an amount of 2 to 2.5 kg per second, the heat exchanger 4 contains a quantity of operating fluid to cope with the order of 450 kg per hour.
  • a drain valve 8 and an inlet valve 9 can be provided in the return line 3 between the separator 2 and the heat exchanger 4.
  • this operating liquid is supplied at a low temperature, for example in the order of 5 ° C. You achieve a better working vacuum and higher flow rates, reduce the cost of water and increase the overall performance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP89121459A 1989-11-20 1989-11-20 Pompe à anneau liquide Withdrawn EP0437637A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP89121459A EP0437637A1 (fr) 1989-11-20 1989-11-20 Pompe à anneau liquide
DE19904036516 DE4036516A1 (de) 1989-11-20 1990-11-16 Fluessigkeitsringpumpe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP89121459A EP0437637A1 (fr) 1989-11-20 1989-11-20 Pompe à anneau liquide

Publications (1)

Publication Number Publication Date
EP0437637A1 true EP0437637A1 (fr) 1991-07-24

Family

ID=8202142

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89121459A Withdrawn EP0437637A1 (fr) 1989-11-20 1989-11-20 Pompe à anneau liquide

Country Status (2)

Country Link
EP (1) EP0437637A1 (fr)
DE (1) DE4036516A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019175823A1 (fr) * 2018-03-14 2019-09-19 Edwards Technologies Vacuum Engineering (Qingdao) Co Ltd Système de commande pour pompes à anneau liquide
CN117927470A (zh) * 2024-03-21 2024-04-26 江苏双恒泵阀制造有限公司 一种用于输送氯气的钛液环真空泵

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993001396A1 (fr) * 1991-07-03 1993-01-21 Polar Vac International Inc. Appareil de refroidissement servant a recycler l'agent de compression d'une pompe a vide
US5636523A (en) * 1992-11-20 1997-06-10 Energy Converters Ltd. Liquid ring compressor/turbine and air conditioning systems utilizing same
DE29714851U1 (de) 1997-08-19 1997-10-23 Siemens AG, 80333 München Flüssigkeitsringpumpenaggregat
DE102005043434A1 (de) * 2005-09-13 2007-03-15 Gardner Denver Elmo Technology Gmbh Einrichtung zur Leistungsanpassung einer Flüssigkeitsringpumpe
US9169838B2 (en) 2011-12-12 2015-10-27 Sterling Industry Consult Gmbh Liquid ring vacuum pump with cavitation regulation
WO2020082285A1 (fr) * 2018-10-25 2020-04-30 Edwards Technologies Vacuum Engineering (Qingdao) Co Ltd Commande de pompe à anneau liquide

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3785755A (en) * 1971-11-22 1974-01-15 Rogers Machinery Co Inc Air compressor system
FR2553500A1 (fr) * 1983-10-14 1985-04-19 Sihi Pompes Procede et dispositif de recuperation de vapeurs d'hydrocarbures
JPS62243981A (ja) * 1986-04-15 1987-10-24 Hitachi Ltd 真空ポンプ装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3785755A (en) * 1971-11-22 1974-01-15 Rogers Machinery Co Inc Air compressor system
FR2553500A1 (fr) * 1983-10-14 1985-04-19 Sihi Pompes Procede et dispositif de recuperation de vapeurs d'hydrocarbures
JPS62243981A (ja) * 1986-04-15 1987-10-24 Hitachi Ltd 真空ポンプ装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 12, no. 116 (M-684)(2963) 13 April 1988, & JP-A-62 243981 (HITACHI) 24 Oktober 1987, *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019175823A1 (fr) * 2018-03-14 2019-09-19 Edwards Technologies Vacuum Engineering (Qingdao) Co Ltd Système de commande pour pompes à anneau liquide
US11746785B2 (en) 2018-03-14 2023-09-05 Edwards Technologies Vacuum Engineering (Qingdao) Control system for liquid ring pumps
CN117927470A (zh) * 2024-03-21 2024-04-26 江苏双恒泵阀制造有限公司 一种用于输送氯气的钛液环真空泵
CN117927470B (zh) * 2024-03-21 2024-06-07 江苏双恒泵阀制造有限公司 一种用于输送氯气的钛液环真空泵

Also Published As

Publication number Publication date
DE4036516A1 (de) 1991-05-23

Similar Documents

Publication Publication Date Title
US5171130A (en) Oil-cooled compressor and method of operating same
EP0437637A1 (fr) Pompe à anneau liquide
SE9002494D0 (sv) Anordning vid hydraulmotor foer styrning av densamma
EP0088226A2 (fr) Procédé d'actionnement d'une pompe à vide à anneau liquide
DE102020104404A1 (de) Turbo-fluid-maschine
EP0486726B1 (fr) Pompe à anneau liquide
CA1176124A (fr) Dispositif condensateur sous vide
DE3022241A1 (de) Kuehlwasserpumpe nach art einer radialpumpe mit einer regeleinrichtung
DE60132721T2 (de) Schmierregelung für Verdichter
JPS61180860A (ja) タ−ボ冷凍機の油回収装置
DE2714505A1 (de) Zentrifugalkompressor
DE102019112500A1 (de) Kühlmitteldruckregelsystem
DE4318158A1 (de) Flüssigkeitspumpe, insbesondere Kühlmittelpumpe einer Brennkraftmaschine
DE3219680A1 (de) Waermepumpenanlage
CH646774A5 (de) Waermepumpe.
EP0071062A1 (fr) Réservoir avec fonction multiple pour un fluide thermo-dynamique
EP0972938B1 (fr) Dispositif de ballast de gaz pour une pompe volumétrique à plusieurs étages
DE102022131277A1 (de) Pumpe-Motor-Einheit mit integrierter Kühlung einer Elektronikkomponente
EP0898078A1 (fr) Unité de pompage avec pompe à anneau liquide
DE3335892A1 (de) Druckoelschmierung fuer rotierende vakuumpumpen
EP1139038A1 (fr) Installation frigorifique
SE447757B (sv) Forfarande for oljeaterforing vid kylanleggning for kylning, tetning och smorjning av en i anleggningen ingaende skruvkompressor
DE8807065U1 (de) Auf einem transportablen Traggestell angeordnetes Vakuumpumpenaggregat
JPH0422076Y2 (fr)
SU628340A1 (ru) Компрессорный агрегат

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE

18D Application deemed to be withdrawn

Effective date: 19901228