EP0016509A2 - Vorrichtung zum Abscheiden von Öl aus einem Kältemittel - Google Patents

Vorrichtung zum Abscheiden von Öl aus einem Kältemittel Download PDF

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Publication number
EP0016509A2
EP0016509A2 EP80200272A EP80200272A EP0016509A2 EP 0016509 A2 EP0016509 A2 EP 0016509A2 EP 80200272 A EP80200272 A EP 80200272A EP 80200272 A EP80200272 A EP 80200272A EP 0016509 A2 EP0016509 A2 EP 0016509A2
Authority
EP
European Patent Office
Prior art keywords
oil
refrigerant
separator
separating section
primary
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.)
Granted
Application number
EP80200272A
Other languages
English (en)
French (fr)
Other versions
EP0016509A3 (en
EP0016509B1 (de
Inventor
Johannes Gerardus Ten Hacken
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.)
Grassos Koniklijke Machinefabrieken NV
Original Assignee
Grassos Koniklijke Machinefabrieken 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 Grassos Koniklijke Machinefabrieken NV filed Critical Grassos Koniklijke Machinefabrieken NV
Priority to AT80200272T priority Critical patent/ATE1759T1/de
Publication of EP0016509A2 publication Critical patent/EP0016509A2/de
Publication of EP0016509A3 publication Critical patent/EP0016509A3/en
Application granted granted Critical
Publication of EP0016509B1 publication Critical patent/EP0016509B1/de
Expired legal-status Critical Current

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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
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/02—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for separating lubricants from the refrigerant

Definitions

  • the present invention relates to a device for separating oil from a refrigerant comprising a separator and a heat exchanger, in which'separator the oil is separated from the gaseous refrigerant by gravity, partial condensation and dissolution in the liquid refrigerant, said separator having an inlet for refrigerant including oil from the compressor, an outlet for the gaseous refrigerant freed from oil to be passed to the condenser and an outlet for the separated oil to be returned to the compressor, and through which heat exchanger an oil-rich mixture of refrigerant and oil is passed in order to evaporate the refrigerant therefrom before returning the oil to the compressor, the heat of evaporation being supplied by the refrigerant passed to the separator upon discharge from the compressor.
  • the object of the invention is to provide a device exhibiting . a yet better oil separation so that the gaseous refrigerant passed to the condenser is essentially free from oil while the oil content of the purified compressed gas amounts to less than 1 ppm.
  • the separator comprises a primary separating section and a secondary separating section, said primary separating section being located above said secondary separating section, the oil-rich mixture of refrigerant and oil formed in the primary section being passed to the heat exchanger for evaporation and the refrigerant being passed to the secondary separating section and subsequently to the condenser and the liquid refrigerant being continuously discharged from the primary and the secondary separating section and being returned in a constant amount to said inlet of the separator.
  • liquid refrigerant is continuously returned in a constant amount from the primary and the secondary separating section to the inlet of the separator accommodating the primary and the secondary separating section.
  • An oil separator having a primary and a secondary separating section is known per se from the Dutch Patent Application Nr. 73.02376, in particular Fig. 2. However the primary section therein is present below the secondary section.
  • the heavily oil-laden ga- s eous refrigerant discharged from the compressor is blown in the ' lower primary separating section, wherein the oil settles and from which the gas partially freed from oil is passed through a bath of refrigerant in the secondary separating section.
  • refrigerant when in operation refrigerant will also be returned from the upper secondary separating section to the inlet of the separator carrying the discharge from the compressor.
  • the line between the secondary separating section and the inlet to the separator however includes an automatic valve which is governed by the temperature of the gaseous refrigerant.
  • the liquid refrigerant is returned to an injector-unit in the inlet to the separator.
  • the returned amount of liquid refrigerant is that large that a wet mixture will reach the primary separating section under all operating conditions.
  • an oil-rich mixture of refrigerant and oil is continuously passed to the heat exchanger in the device according to the invention from which the oil is periodically returned to the compressor after evaporation of the refrigerant therefrom.
  • the secondary separating section is preferably constructed as a tray column. It should be remarked that from the Dutch Patent Application Nr. 75.15207 an oil separator is known consisting of solely one section though also constructed as a tray column.
  • the device according to the invention consists of a vertically arranged, for instance a cylindrical, vessel 1 and a heat exchanger 2.
  • the line running from the not shown compressor of the refrigeration system has been indicated by the reference numeral 3 and leads through the heat exchanger 2 to the vessel 1. Through the vessel 1 the line 3 runs upwards to above a rigid tight bottom 4.
  • the room above the bottom 4 constitutes the primary separating sectionand the room below said bottom the secondary separating section.
  • the secondary separating section is constructed as a tray column known per se.
  • a tray column known per se.
  • two trays 5 and 6 have been represented in the drawing.
  • a downcomer runs downwards from the primary separating section to below the tray 6 of the secondary separating section.
  • the reference numeral 9 denotes the outlet of the vessel 1 through which the compressed gas freed from oil is passed to the (not shown) condenser.
  • liquid refrigerant may be supplied for providing the maintenance of a certain liquid refrigerant level on the trays 5 and 6 governed by a level detector 11 by means of which a valve 12 in the junction 10 is operated.
  • liquid refrigerant is fed to the line 3.
  • This liquid refrigerant is fed continuously and in such a constant amount that the primary separating section is reached by the mixture of refrigerant and oil in liquid condition in the line 3. Because of the wet condition of the refrigerant it is assured that the partial pressure of the oil vapor is as low as possible while moreover droplets of oil are caught in the refrigerant.
  • the gaseous refrigerant freed from oil and containing less than 1 ppm of oil is discharged from the device according the invention by means of the line 9 and is fed to the not shown condenser.
  • the oil on the bottom 4 will of course also include a certain content of refrigerant.
  • This mixture is continuously fed to the heat exchanger 2 through the line 13.
  • the heat of the compressed gas led through the line 3 is used for heating this mixture.
  • the refrigerant is evaporated from the mixture and returned to the gas room in the primary separating section through a line 18.
  • the oil accumulated in the lower part of the exchanger 2 is periodically discharged through the line 14 and returned to the carter of the compressor. This discharge is performed dependent on the temperature determined by means of the detector 16.
  • the device according to the invention is very simple and includes only two simple regulations, i.e. a level regulation 11, 12 of the trays 5 and 6 and a thermostatic regulation 15, 16 of the oil discharge through the line 14.
  • the temperature of the oil in the heat exchanger 2 will only increase after the evaporation of the refrigerant so that simple thermostatic regulation of the oil discharge is possible.
  • the invention is in particular applicable to a refrigeration system operated with ammonia as the refigerant and to a refrigeration system operated by means of a compressor of the piston type. It will however be clear that the device according to the invention may also be used When employing other refrigerants and other types of compressors.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Compressor (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
EP80200272A 1979-03-23 1980-03-21 Vorrichtung zum Abscheiden von Öl aus einem Kältemittel Expired EP0016509B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80200272T ATE1759T1 (de) 1979-03-23 1980-03-21 Vorrichtung zum abscheiden von oel aus einem kaeltemittel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7902319 1979-03-23
NL7902319A NL7902319A (nl) 1979-03-23 1979-03-23 Inrichting voor het afscheiden van olie uit een koudemiddel.

Publications (3)

Publication Number Publication Date
EP0016509A2 true EP0016509A2 (de) 1980-10-01
EP0016509A3 EP0016509A3 (en) 1980-12-10
EP0016509B1 EP0016509B1 (de) 1982-11-03

Family

ID=19832858

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80200272A Expired EP0016509B1 (de) 1979-03-23 1980-03-21 Vorrichtung zum Abscheiden von Öl aus einem Kältemittel

Country Status (5)

Country Link
EP (1) EP0016509B1 (de)
AT (1) ATE1759T1 (de)
DE (1) DE3061022D1 (de)
ES (1) ES490561A0 (de)
NL (1) NL7902319A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2599269A1 (fr) * 1986-04-30 1987-12-04 Sev Kavkazskoe Otdel Vse Separateur d'huile pour machine frigorifique.
WO1990007092A1 (en) * 1988-12-19 1990-06-28 Roads Corporation Apparatus for separating contaminants from refrigerant
US5193358A (en) * 1989-03-30 1993-03-16 Winther Aage Bisgaard Compression cooling plant provided with an oil separator
WO2017134567A1 (en) * 2016-02-06 2017-08-10 Kataria Trilok Improved refrigeration compressor and layout
US10267548B2 (en) 2013-02-20 2019-04-23 Carrier Corporation Oil management for heating ventilation and air conditioning system

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE167032C (de) *
SU186515A1 (ru) * Ю. И. Сухов , Ж. И. Пасечник Маслоотделитель для компрессионных холодильных установок
CH143814A (de) * 1929-08-05 1930-11-30 Linde S Eismachinen A G Ges Verfahren zur Ölabscheidung bei Kompressionskältemaschinen.
DE611207C (de) * 1934-01-14 1935-11-23 Otto Nimmitschek OElabscheider, insbesondere fuer Kaeltemaschinen
US2149358A (en) * 1937-11-06 1939-03-07 Girdler Corp Removal of oil from refrigerating systems
GB576921A (en) * 1944-04-22 1946-04-26 Standard Pressed Steel Co Improvements in or relating to refrigerating systems
FR924281A (fr) * 1942-01-17 1947-07-31 British Filters Ltd Perfectionnements aux épurateurs d'air
US2618132A (en) * 1948-08-30 1952-11-18 Jr Francis Marion Pottenger Refrigeration system with refrigerant cleaning means
CH318293A (de) * 1954-01-08 1956-12-31 Sulzer Ag Verfahren zur Verminderung der aus dem Wasserabscheider eines Zwangdurchlauf-Dampferzeugers abzuschlämmenden Wassermenge
US3274796A (en) * 1965-09-23 1966-09-27 Vilter Manufacturing Corp Refrigeration system with lube oil separation means
US3534564A (en) * 1968-11-06 1970-10-20 Bruce D Miller Refrigerant purifying means
NL7302376A (de) * 1972-02-22 1973-08-24
DE2629573A1 (de) * 1975-07-10 1977-02-03 Stal Refrigeration Ab Anlage zur kondensation eines gases

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE167032C (de) *
SU186515A1 (ru) * Ю. И. Сухов , Ж. И. Пасечник Маслоотделитель для компрессионных холодильных установок
CH143814A (de) * 1929-08-05 1930-11-30 Linde S Eismachinen A G Ges Verfahren zur Ölabscheidung bei Kompressionskältemaschinen.
DE611207C (de) * 1934-01-14 1935-11-23 Otto Nimmitschek OElabscheider, insbesondere fuer Kaeltemaschinen
US2149358A (en) * 1937-11-06 1939-03-07 Girdler Corp Removal of oil from refrigerating systems
FR924281A (fr) * 1942-01-17 1947-07-31 British Filters Ltd Perfectionnements aux épurateurs d'air
GB576921A (en) * 1944-04-22 1946-04-26 Standard Pressed Steel Co Improvements in or relating to refrigerating systems
US2618132A (en) * 1948-08-30 1952-11-18 Jr Francis Marion Pottenger Refrigeration system with refrigerant cleaning means
CH318293A (de) * 1954-01-08 1956-12-31 Sulzer Ag Verfahren zur Verminderung der aus dem Wasserabscheider eines Zwangdurchlauf-Dampferzeugers abzuschlämmenden Wassermenge
US3274796A (en) * 1965-09-23 1966-09-27 Vilter Manufacturing Corp Refrigeration system with lube oil separation means
US3534564A (en) * 1968-11-06 1970-10-20 Bruce D Miller Refrigerant purifying means
NL7302376A (de) * 1972-02-22 1973-08-24
DE2308481A1 (de) * 1972-02-22 1973-08-30 Sabroe & Co As Thomas Ths Einrichtung, beispielsweise kuehleinrichtung mit einem kompressor zum ausstossen eines kondensierbaren gases in dessen gaszustand
DE2629573A1 (de) * 1975-07-10 1977-02-03 Stal Refrigeration Ab Anlage zur kondensation eines gases

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2599269A1 (fr) * 1986-04-30 1987-12-04 Sev Kavkazskoe Otdel Vse Separateur d'huile pour machine frigorifique.
WO1990007092A1 (en) * 1988-12-19 1990-06-28 Roads Corporation Apparatus for separating contaminants from refrigerant
US5193358A (en) * 1989-03-30 1993-03-16 Winther Aage Bisgaard Compression cooling plant provided with an oil separator
US10267548B2 (en) 2013-02-20 2019-04-23 Carrier Corporation Oil management for heating ventilation and air conditioning system
WO2017134567A1 (en) * 2016-02-06 2017-08-10 Kataria Trilok Improved refrigeration compressor and layout

Also Published As

Publication number Publication date
ATE1759T1 (de) 1982-11-15
NL7902319A (nl) 1980-09-25
DE3061022D1 (en) 1982-12-09
EP0016509A3 (en) 1980-12-10
EP0016509B1 (de) 1982-11-03
ES8103600A1 (es) 1981-03-16
ES490561A0 (es) 1981-03-16

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