EP0607101A1 - Schmieröl-Rückführungssystem für Kältekompressoren - Google Patents

Schmieröl-Rückführungssystem für Kältekompressoren Download PDF

Info

Publication number
EP0607101A1
EP0607101A1 EP94610002A EP94610002A EP0607101A1 EP 0607101 A1 EP0607101 A1 EP 0607101A1 EP 94610002 A EP94610002 A EP 94610002A EP 94610002 A EP94610002 A EP 94610002A EP 0607101 A1 EP0607101 A1 EP 0607101A1
Authority
EP
European Patent Office
Prior art keywords
oil
compressors
compressor
pressure
level
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Withdrawn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
EP94610002A
Other languages
English (en)
French (fr)
Inventor
Johansen Bent
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.)
BIRTON AS
Original Assignee
BIRTON AS
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 BIRTON AS filed Critical BIRTON AS
Publication of EP0607101A1 publication Critical patent/EP0607101A1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B31/00—Compressor arrangements
    • F25B31/002—Lubrication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—Component parts or details not otherwise provided for in this subclass
    • F25B2400/07—Details of compressors or related parts
    • F25B2400/075—Details of compressors or related parts with parallel compressors

Definitions

  • the invention concerns an apparatus for the control of the oil level in refrigerating compressors run in parallel and comprising an oil separator.
  • Refrigerating compressors run in parallel normally comprise a number of refrigerating compressors mounted on a common chassis and are put in operation in a number commensurate with the instant cooling capacity requirement. Thus they are to be regarded as a capacity controlled refrigerating machine.
  • the compressors are switched on by an automatic control device, and the starting sequence of the compressors is changed according to a predetermined plan in order that all compressors will have the same total running time, whereby a uniform wear will be achieved.
  • the refrigerating compressors may be of the type having the shaft passing through a stuffing box for belt drive or direct coupling to a motor, or in semi-hermetic or hermetic construction with a built-in motor.
  • the refrigerating compressors have a certain amount of lubricating oil in the sump/motor casing or in the crank case which must not fall below a certain level on order to ensure correct lubrication and/or oil pressure.
  • the cooling plant Since the refrigerating compressor will always have a certain oil consumption during running, which is carried via the refrigerant from the compressors into the cooling circuit the cooling plant is always constructed in order to conduct the oil back to the crank case or sump of the refrigerating compressors by means of suitable oil separating means.
  • the difference pressure element is an orifice of reduced diameter.
  • the difference pressure element is a calibrated tube.
  • the difference pressure element is an adjustable valve whereby the pressure drop may be easily adjusted when the plant is extended.
  • the plant is constructed with an oil separator with oil return to the suction side of the refrigerating plant which is connected via a small pressure drop to the crank case/sump of each compressor, and in that a small diameter tube is connected between pipe stubs placed in the sump of each compressor at a level corresponding to the desired oil level. Since the pressure in the suction side of each compressor is communicating freely with the crank case/sump of the compressor, and since there is a pressure difference between the suction side of the suction side of the plant and the crank case because of the pressure difference element, those compressors which are running will suck oil through the small pipes which are connected.
  • the drawing shows compressors 1, 2, 3, and 4 which are connected to suction lines 5, 6 and pressure lines 7, respectively.
  • the compressors are fitted into a rack which is not shown, and the compressors 1 and 2 are physically disposed above the compressors 3 and 4.
  • the compressors such refrigerant vapours from the cooling plant through the suction lines 5, 6 and compress the vapours and send them along in a gaseous state to the pressure lines 7, 8 to a condensor, not shown, in which the refrigerant is condensed to the liquid state.
  • lubrication occurs in that there is an amount of oil in the sump or crankcase of each compressor S, as shown at compressor 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
EP94610002A 1993-01-14 1994-01-14 Schmieröl-Rückführungssystem für Kältekompressoren Withdrawn EP0607101A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK4093A DK4093A (da) 1993-01-14 1993-01-14 Anlæg til tilbageføring af smøreolie i kølekompressorer
DK40/93 1993-01-14

Publications (1)

Publication Number Publication Date
EP0607101A1 true EP0607101A1 (de) 1994-07-20

Family

ID=8089064

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94610002A Withdrawn EP0607101A1 (de) 1993-01-14 1994-01-14 Schmieröl-Rückführungssystem für Kältekompressoren

Country Status (2)

Country Link
EP (1) EP0607101A1 (de)
DK (1) DK4093A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0961090A3 (de) * 1998-05-26 2000-03-15 Linde Aktiengesellschaft Verbund(kälte)anlage und Verfahren zum Betreiben einer Verbund(kälte)anlage
EP0961091A3 (de) * 1998-05-26 2000-03-15 Linde Aktiengesellschaft Verbund(kälte)anlage und Verfahren zum Betreiben einer Verbund(kälte)anlage
EP1550832A1 (de) * 2003-12-10 2005-07-06 Linde Kältetechnik GmbH & Co.KG Verbund(kälte)anlage und Verfahren zum Betreiben einer Verbund(kälte)anlage
WO2009039873A1 (en) * 2007-09-28 2009-04-02 Carrier Corporation Refrigerant circuit and method for managing oil therein
RU2434185C1 (ru) * 2007-09-28 2011-11-20 Кэрриер Корпорейшн Контур хладагента и способ управления в нем масла

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3386262A (en) * 1966-10-31 1968-06-04 Trane Co Refrigeration apparatus with compressors in parallel
FR2189689A1 (de) * 1972-06-19 1974-01-25 Westinghouse Electric Corp
US4411141A (en) * 1981-02-06 1983-10-25 Mitsubishi Denki Kabushiki Kaisha Parallel operation compressor type refrigerating apparatus
EP0438835A2 (de) * 1990-01-24 1991-07-31 Arneg S.P.A. Kälte-Anlage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3386262A (en) * 1966-10-31 1968-06-04 Trane Co Refrigeration apparatus with compressors in parallel
FR2189689A1 (de) * 1972-06-19 1974-01-25 Westinghouse Electric Corp
US4411141A (en) * 1981-02-06 1983-10-25 Mitsubishi Denki Kabushiki Kaisha Parallel operation compressor type refrigerating apparatus
EP0438835A2 (de) * 1990-01-24 1991-07-31 Arneg S.P.A. Kälte-Anlage

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0961090A3 (de) * 1998-05-26 2000-03-15 Linde Aktiengesellschaft Verbund(kälte)anlage und Verfahren zum Betreiben einer Verbund(kälte)anlage
EP0961091A3 (de) * 1998-05-26 2000-03-15 Linde Aktiengesellschaft Verbund(kälte)anlage und Verfahren zum Betreiben einer Verbund(kälte)anlage
EP1550832A1 (de) * 2003-12-10 2005-07-06 Linde Kältetechnik GmbH & Co.KG Verbund(kälte)anlage und Verfahren zum Betreiben einer Verbund(kälte)anlage
WO2009039873A1 (en) * 2007-09-28 2009-04-02 Carrier Corporation Refrigerant circuit and method for managing oil therein
RU2434185C1 (ru) * 2007-09-28 2011-11-20 Кэрриер Корпорейшн Контур хладагента и способ управления в нем масла
CN101809384B (zh) * 2007-09-28 2012-12-12 开利公司 制冷剂回路和用于管理制冷剂回路中的油的方法

Also Published As

Publication number Publication date
DK4093A (da) 1994-09-12
DK4093D0 (da) 1993-01-14

Similar Documents

Publication Publication Date Title
US3360958A (en) Multiple compressor lubrication apparatus
US4530215A (en) Refrigeration compressor with pump actuated oil return
US5911289A (en) Oil level control apparatus
US3500962A (en) Lubrication system for compressors
US2178662A (en) Fluid compressor
US5634345A (en) Oil monitoring system
US5327997A (en) Lubrication management system
EP0963536B1 (de) Oelrückführung vom verdampfer zum verdichter in einer kälteanlage
US3581519A (en) Oil equalization system
US3621670A (en) Lubricating oil equalizing system
US3620038A (en) Purging apparatus for refrigeration system
US5321956A (en) Oil management and removal system for a refrigeration installation
EP0607101A1 (de) Schmieröl-Rückführungssystem für Kältekompressoren
US5586450A (en) Plural compressor oil level control
US4895498A (en) Crank case chamber
EP2646762B1 (de) Ölkompensierung in einem kühlkreislauf
US5415014A (en) Refrigerant receiver tank assembly
JPS6055719B2 (ja) 多圧縮機装備装置
US5150586A (en) System and process of compressing miscible fluids
US2844305A (en) Refrigerating apparatus
US3465953A (en) Compressor lubrication arrangement
US7231783B2 (en) Oil control system for a refrigeration system
US2418962A (en) Oil separator in refrigeration systems
US2655008A (en) Liquid refrigerant transfer in refrigeration system
US2971352A (en) Non-condensible gas removal system for refrigerant units

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE CH DE FR GB IT LI NL PT SE

17P Request for examination filed

Effective date: 19950109

17Q First examination report despatched

Effective date: 19960425

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

18D Application deemed to be withdrawn

Effective date: 19960906