EP1960722A1 - Silencieux et separateur d'huile combines pour systeme frigorifique - Google Patents

Silencieux et separateur d'huile combines pour systeme frigorifique

Info

Publication number
EP1960722A1
EP1960722A1 EP05853979A EP05853979A EP1960722A1 EP 1960722 A1 EP1960722 A1 EP 1960722A1 EP 05853979 A EP05853979 A EP 05853979A EP 05853979 A EP05853979 A EP 05853979A EP 1960722 A1 EP1960722 A1 EP 1960722A1
Authority
EP
European Patent Office
Prior art keywords
muffler
sound
refrigerant
set forth
oil
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Withdrawn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
EP05853979A
Other languages
German (de)
English (en)
Other versions
EP1960722A4 (fr
Inventor
Alexander Lifson
Michael F. Taras
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.)
Carrier Corp
Original Assignee
Carrier 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 Carrier Corp filed Critical Carrier Corp
Publication of EP1960722A1 publication Critical patent/EP1960722A1/fr
Publication of EP1960722A4 publication Critical patent/EP1960722A4/fr
Withdrawn legal-status Critical Current

Links

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
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/12—Sound

Definitions

  • HVAC&R heating, ventilation, air conditioning or refrigeration
  • Refrigerant systems are utilized in many applications to condition an environment.
  • air conditioners and heat pumps are employed to cool and/or heat air entering the environment.
  • the cooling or heating load of the environment may vary with ambient conditions, occupancy level, other changes in sensible and latent load demands, and as the temperature and/or humidity set points are adjusted by an occupant of the environment.
  • muffler structures are known, but in general a muffler has an enlarged cavity with a flow cross-sectional area greater than the discharge line leading into the muffler.
  • the movement of the compressed refrigerant into the larger cross-sectional area combined with various muffling features, reduces the radiated noise.
  • the muffling features would include sound-deadening coatings within the muffler chamber, baffles of various shapes, etc.
  • oil separators are also known to position an oil separator downstream of the compressor.
  • the compressed refrigerant leaving the compressor discharge port may often carry excessive amount of oil out of a compressor housing. It is undesirable to have excessive amount of oil leaving the compressor, since it may eventually lead to permanent compressor damage (due to oil pumpout conditions) as well as may cause detrimental heat transfer effects (due to presence of oil in the heat exchangers).
  • oil separators have been positioned downstream of the compressors.
  • the oil separators have typically included an enlarged chamber and may include additional structure for removing oil from the refrigerant.
  • an oil retention mesh or a cyclone structure causing centrifugal motion of the oil-refrigerant flow may be placed within the chamber.
  • an enlarged chamber is positioned downstream of a compressor discharge line.
  • This enlarged chamber has an oil return line for returning separated oil back to the compressor.
  • this enlarged chamber has at least one sound-muffling feature.
  • a mesh which may be a wire mesh, perforated plate or any other compatible porous material, extends across the enlarged chamber to assist in oil separation.
  • a cyclone structure causing swirling motion may be placed within the chamber to help in separating oil by centrifugal forces.
  • the sound-deadening feature may be represented by the baffles in one embodiment, perforated structure in another embodiment or a sound-deadening material in still another embodiment.
  • Figure IA is a schematic view of a refrigerant system incorporating the present invention.
  • Figure IB is another embodiment.
  • Figure 2 shows a combined oil separator and muffler structure.
  • FIG. 3 shows another embodiment.
  • a refrigerant system 20 is illustrated in Figure 1 having a compressor 22 compressing a refrigerant and delivering it downstream to a condenser 24.
  • An expansion device 26 is positioned downstream of the condenser 24, and an evaporator 28 is positioned downstream of the expansion device 26.
  • Refrigerant flows from the compressor through the condenser 24, the expansion device 26, the evaporator 28, and back to the compressor 22. It should be understood that this is a very simplified schematic view of a refrigerant system, and many other components and features may be incorporated into the circuitry.
  • a discharge line 30 accepts compressed refrigerant downstream from the compressor 22 and directs it towards the condenser 24.
  • a combined oil separator and muffler 32 is positioned downstream of the compressor 22, on the line 30, and upstream of the condenser 24. As shown, separated oil 38 is returned through an oil return line 34 to the compressor 22.
  • a material such as a wire mesh, a perforated plate or an insert made from any other compatible porous material 36 may be positioned within the chamber 32.
  • the sound-deadening feature is normally provided by selecting the size of the muffler to be large enough to provide the desired sound and pulsation attenuation.
  • baffles 40 may be additionally placed within this volume to beneficially change the acoustic characteristics of the muffler for enhancing the attenuation of discharge pressure pulsations as well assisting in oil separation.
  • Figure IB shows another alternative 200 that may have a sound-deadening feature, where the muffler is comprised of at least two separate volumes V with a connecting passage or tube T placed between the two volumes.
  • this embodiment shows a single combined chamber 32, which provides the function of oil separation and sound deadening.
  • Figure 2 shows another embodiment 50, wherein the chamber 50 includes a sound-deadening material 52 on its inner surfaces.
  • the oil-refrigerant mixture enters the chamber 50 through an inlet line 70 and separated oil 38 is returned through an oil return line 34 while vapor refrigerant leaves through an outlet line 42 towards the condenser.
  • the sound-deadening material may include (but not limited to) insulation material or perforated structure that are generally known in the art.
  • Figure 3 shows another embodiment 100 that includes cyclone structure 102 causing the swirling motion of the oil-refrigerant mixture and separating oil and vapor refrigerant by the action of centrifugal forces.
  • a sound- deadening feature is used in combination with the cyclone separator. Any known sound-deadening feature may be used.
  • the cyclone 102 is shown schematically. As known, as the refrigerant passes through the cyclone, the heavier oil would tend to be separated by being thrown radially further away from the centerline due to centrifugal force. That oil then falls into the oil sump 38.
  • the cyclone separator itself is as known, and thus it is disclosed and illustrated somewhat schematically. In all other aspects, this embodiment could be similar to embodiments shown in Figures 1 and 2.
  • the present invention thus provides a single combined chamber that required two distinct components in the prior art. While two muffling features are disclosed, many others can be used with the basic technology of this invention. Although a preferred embodiment of this invention has been disclosed, a worker of ordinary skill in this art would recognize that certain modifications would come within the scope of this invention. For that reason, the following claims should be studied to determine the true scope and content of this invention.

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)
  • Compressor (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

L'invention concerne un système frigorifique (20) pourvu d'un compartiment (32) agrandi qui remplit à la fois les fonctions de séparateur d'huile et de silencieux. Le compartiment comprend une canalisation (34) de retour d'huile qui renvoie l'huile séparée vers un compresseur. Le compartiment comprend en outre au moins un élément atténuant le son, de sorte que le compartiment atténue également le son provoqué par le passage du frigorigène comprimé vers l'aval du compresseur vers le condenseur. Dans un mode de réalisation, l’élément atténuant le son est un chemin (40) tortueux pour l'écoulement de refoulement du compresseur. Dans un autre mode de réalisation, l’élément atténuant le son est un matériau (52) atténuant le son formé à l'intérieur du compartiment. Des éléments supplémentaires de séparation d'huile peuvent comprendre un treillis (36) de rétention d'huile ou une structure (102) de cyclone.
EP05853979A 2005-12-14 2005-12-14 Silencieux et separateur d'huile combines pour systeme frigorifique Withdrawn EP1960722A4 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2005/045178 WO2007070039A1 (fr) 2005-12-14 2005-12-14 Silencieux et separateur d'huile combines pour systeme frigorifique

Publications (2)

Publication Number Publication Date
EP1960722A1 true EP1960722A1 (fr) 2008-08-27
EP1960722A4 EP1960722A4 (fr) 2011-12-14

Family

ID=38163228

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05853979A Withdrawn EP1960722A4 (fr) 2005-12-14 2005-12-14 Silencieux et separateur d'huile combines pour systeme frigorifique

Country Status (3)

Country Link
US (1) US20080314063A1 (fr)
EP (1) EP1960722A4 (fr)
WO (1) WO2007070039A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008036317A1 (de) 2008-07-29 2010-02-25 Bitzer Kühlmaschinenbau Gmbh Schraubenverdichter
JP5551882B2 (ja) * 2009-02-24 2014-07-16 ダイキン工業株式会社 ヒートポンプシステム
CN102900709B (zh) * 2011-07-25 2015-10-07 珠海格力电器股份有限公司 一种压缩机气液分离结构
CN110906594A (zh) 2018-09-14 2020-03-24 开利公司 油分离器以及具有该油分离器的空调系统
KR20200137837A (ko) * 2019-05-31 2020-12-09 현대자동차주식회사 차량용 기액 분리장치
CN110986431B (zh) * 2019-12-31 2021-04-30 珠海格力电器股份有限公司 有效回油控制方法、装置及空调机组

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3070977A (en) * 1961-03-31 1963-01-01 Heat X Inc Refrigeration system, including oil separator and muffler unit and oil return arrangement
EP0540459A1 (fr) * 1991-10-28 1993-05-05 Carrier Corporation Ensemble de séparateur d'huile et de silencieux
JPH08128388A (ja) * 1994-11-04 1996-05-21 Kobe Steel Ltd 油冷式圧縮機の油分離器
US6010314A (en) * 1997-01-10 2000-01-04 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Swash-plate compressor having a capacity control valve on the oil return passageway adjacent an oil separator
US6131405A (en) * 1997-12-03 2000-10-17 Parker-Hannifin Corporation Discharge separator and muffler for refrigeration, air conditioning and heat pump systems
JP2004308968A (ja) * 2003-04-03 2004-11-04 Sanyo Electric Co Ltd 熱交換器

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1691305A (en) * 1926-05-21 1928-11-13 Electric Refrigeration Corp Compressor
US2198258A (en) * 1937-01-21 1940-04-23 Crosley Corp Refrigeration system
US2894599A (en) * 1956-05-18 1959-07-14 Sylvan V Leininger Oil separator and muffler
US4474030A (en) * 1983-08-25 1984-10-02 General Electric Company Reversible refrigerant heat pump system
JP2614869B2 (ja) * 1987-09-24 1997-05-28 株式会社島津製作所 分析システムのデータ収録装置
US4957517A (en) * 1989-04-28 1990-09-18 American Standard Inc. Sound attenuating liquid-gas separator
US5271245A (en) * 1992-08-20 1993-12-21 Ac&R Components, Inc. Two-stage helical oil separator
US5502984A (en) * 1993-11-17 1996-04-02 American Standard Inc. Non-concentric oil separator
KR0118810Y1 (ko) * 1993-12-22 1998-07-15 윤종용 공기조화기용 오일분리기
US5724832A (en) * 1995-03-29 1998-03-10 Mmr Technologies, Inc. Self-cleaning cryogenic refrigeration system
US6048376A (en) * 1998-08-03 2000-04-11 Ingersoll-Rand Company Combination baffle and filter element system for removing oil from an oil/gas mixture
JP2002031050A (ja) * 2000-07-17 2002-01-31 Toyota Industries Corp 圧縮機
US6345614B1 (en) * 2000-12-27 2002-02-12 Detroit Diesel Corporation Separator and oil trap for closed crankcase ventilator systems
US6753503B2 (en) * 2002-07-08 2004-06-22 Illinois Tool Works Inc. Oil separator for a welder
US6908290B2 (en) * 2003-05-01 2005-06-21 Visteon Global Technologies, Inc. Air conditioning compressor having reduced suction pulsation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3070977A (en) * 1961-03-31 1963-01-01 Heat X Inc Refrigeration system, including oil separator and muffler unit and oil return arrangement
EP0540459A1 (fr) * 1991-10-28 1993-05-05 Carrier Corporation Ensemble de séparateur d'huile et de silencieux
JPH08128388A (ja) * 1994-11-04 1996-05-21 Kobe Steel Ltd 油冷式圧縮機の油分離器
US6010314A (en) * 1997-01-10 2000-01-04 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Swash-plate compressor having a capacity control valve on the oil return passageway adjacent an oil separator
US6131405A (en) * 1997-12-03 2000-10-17 Parker-Hannifin Corporation Discharge separator and muffler for refrigeration, air conditioning and heat pump systems
JP2004308968A (ja) * 2003-04-03 2004-11-04 Sanyo Electric Co Ltd 熱交換器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2007070039A1 *

Also Published As

Publication number Publication date
WO2007070039A1 (fr) 2007-06-21
US20080314063A1 (en) 2008-12-25
EP1960722A4 (fr) 2011-12-14

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