EP2910875A1 - Séparateur d'huile - Google Patents

Séparateur d'huile Download PDF

Info

Publication number
EP2910875A1
EP2910875A1 EP15153295.9A EP15153295A EP2910875A1 EP 2910875 A1 EP2910875 A1 EP 2910875A1 EP 15153295 A EP15153295 A EP 15153295A EP 2910875 A1 EP2910875 A1 EP 2910875A1
Authority
EP
European Patent Office
Prior art keywords
pressure container
refrigerant
gas phase
oil separator
inlet pipe
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
EP15153295.9A
Other languages
German (de)
English (en)
Other versions
EP2910875B1 (fr
Inventor
Osamu Ogawa
Satoshi Imai
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.)
Panasonic Intellectual Property Management Co Ltd
Original Assignee
Panasonic Intellectual Property Management Co Ltd
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 Panasonic Intellectual Property Management Co Ltd filed Critical Panasonic Intellectual Property Management Co Ltd
Publication of EP2910875A1 publication Critical patent/EP2910875A1/fr
Application granted granted Critical
Publication of EP2910875B1 publication Critical patent/EP2910875B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/02—Centrifugal separation of gas, liquid or oil
    • 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
    • F25B2500/01—Geometry problems, e.g. for reducing size

Definitions

  • the present disclosure relates to an oil separator that separates refrigerating machine oil by inertia force and centrifugal force, from a gas phase refrigerant containing the refrigerating machine oil that is discharged from a compressor.
  • a compressor is used for a heat pump cycle of an air conditioner and the like.
  • refrigerating machine oil is typically used.
  • the refrigerating machine oil circulates through a refrigerant circulating system with a refrigerant flowing through the refrigerant circulating system.
  • the refrigerating machine oil suctioned from an intake side of the compressor or the refrigerating machine oil stored in a shell container including the compressor is supplied to the sliding portions inside the compressor and used to lubricate the sliding portions.
  • the refrigerating machine oil is supplied to an operation chamber of the compressor and used to prevent leakage of a vaporized refrigerant by sealing a gap inside the operation chamber.
  • the refrigerating machine oil tends to attach to an inner wall of a heat transfer pipe of a heat exchanger.
  • the refrigerating machine oil attaching to the inner wall of the heat transfer pipe is a factor that hampers heat transfer in the heat transfer pipe, worsens the heat-transfer efficiency of the heat exchanger, and increases pressure loss.
  • an oil separator is provided inside the refrigerant circulating system.
  • the oil separator separates the refrigerating machine oil from the refrigerant discharged from the compressor, and returns the refrigerating machine oil to the intake side of the compressor.
  • an oil separator which is provided with a refrigerant inlet pipe and a refrigerant outlet pipe in an upper end plate of a pressure container, and is provided with an oil return pipe in a lower end plate of the pressure container.
  • the oil separator After a mixture of a gas phase refrigerant and refrigerating machine oil from a compressor flows in trough the refrigerant inlet pipe, the oil separator causes the mixture to collide against a cylindrical inner wall of the pressure container and separates the refrigerating machine oil by inertia force. Then, after the mixture of the gas phase refrigerant and refrigerating machine oil collides against the inner wall, the oil separator causes the mixture to rotate at a high speed along the inner wall and separates the refrigerating machine oil by centrifugal force.
  • An angle ⁇ between a straight line along the direction of the opening of a delivery port at a tip of the refrigerant inlet pipe introduced into the cylindrical pressure container and a plane perpendicular to the central axis of the cylindrical pressure container satisfies 45° ⁇ ⁇ ⁇ 90°.
  • the present disclosure can reduce an influence of variations in the machining accuracy of the refrigerant inlet pipe of the oil separator, enhance an effect of impingement separation and an effect of centrifugal separation for the refrigerating machine oil at the same time, and make a path length of a rotational flow longer than a conventional one.
  • the refrigerant inlet pipe is introduced through the upper end plate of the pressure container.
  • a delivery port of the refrigerant inlet pipe is curved, and the direction of the opening of the delivery port is faced toward a portion of the inner wall of the oil separator slightly below the delivery port.
  • a gas phase refrigerant delivered from the delivery port collides against the inner wall of the pressure container and rotates within the pressure container.
  • FIG. 7 illustrates a configuration of a conventional oil separator 1.
  • Fig. 7 is a cross sectional view of the oil separator 1 including a cylindrical pressure container 20 when the oil separator 1 is cut by a plane perpendicular to the central axis of the pressure container 20.
  • the oil separator 1 includes the pressure container 20, a refrigerant inlet pipe 11, and a refrigerant outlet pipe 14. As described above, the direction of the opening of a delivery port 13 is faced toward a portion of the inner wall of the oil separator 1 slightly below the delivery port 13.
  • a distance X is large to some extent and a distance Y is small.
  • the distances X and Y are distances from the delivery port 13 to the inner wall of the oil separator 1 in the direction of the opening and in a direction perpendicular to the direction of the opening, respectively.
  • the rotational flow of the gas phase refrigerant reaches a bottom part of the pressure container 20 quickly and the path length of the rotational flow is shortened. Therefore, the refrigerating machine oil may not be separated sufficiently.
  • the inventor has thus conceived the following oil separator.
  • the oil separator of the present disclosure separates refrigerating machine oil contained in a gas phase refrigerant.
  • the oil separator includes a cylindrical pressure container, a refrigerant inlet pipe that leads the gas phase refrigerant containing the refrigerating machine oil into the cylindrical pressure container, and a refrigerant outlet pipe that discharges the gas phase refrigerant from which the refrigerating machine oil is separated.
  • An angle ⁇ between a straight line along the direction of the opening of a delivery port at a tip of the refrigerant inlet pipe introduced into the cylindrical pressure container and a plane perpendicular to the central axis of the cylindrical pressure container satisfies 45° ⁇ ⁇ ⁇ 90°.
  • the direction of the opening of the delivery port comes closer to a ceiling surface of the cylindrical pressure container or faces the ceiling surface, and the distance X can be made still larger. That is, it becomes possible to enhance an effect of impingement separation and an effect of centrifugal separation for the refrigerating machine oil at the same time.
  • Fig. 1 is a refrigerant circuit diagram illustrating an overall configuration of an outdoor unit 100 of an air conditioner according to an embodiment of the present disclosure.
  • the outdoor unit 100 illustrated in Fig. 1 is an example of an air conditioner to which an oil separator 10 according to the present disclosure is applicable, and a range of application of the oil separator 10 is not limited to such an air conditioner.
  • the outdoor unit 100 includes a variable capacity compressor (DC inverter compressor) 30, the oil separator 10, an outdoor heat exchanger 31, an expansion valve 32, a four-way valve 33, a receiver tank 34, and an accumulator 35.
  • DC inverter compressor DC inverter compressor
  • the four-way valve 33 communicates one end of the outdoor heat exchanger 31 with the discharge pipe 42B or communicates one end of the outdoor heat exchanger 31 with a duct 43 linking to the suction pipe 41 of the compressor 30. Further, the four-way valve 33 communicates the discharge pipe 42B extending through the oil separator 10 with a gas pipe 46 or communicates the duct 43 linking through the accumulator 35 to the suction pipe 41 of the compressor 30 with the gas pipe 46.
  • the other end of the outdoor heat exchanger 31 is connected to the expansion valves 32 and the receiver tank 34, and further connected through a refrigerant pipe 44 to a liquid tube 45.
  • An oil return pipe 47 is connected to the oil separator 10; the oil return pipe 47 returns refrigerating machine oil stored in the oil separator 10 to the suction pipe 41 of the compressor 30.
  • the above refrigerating machine oil is lubricating oil for the compressor 30 contained in a gas phase refrigerant discharged from the compressor 30.
  • the oil separator 10 separates the refrigerating machine oil from the refrigerant discharged from the compressor 30, returns the separated refrigerating machine oil to a suction side of the compressor 30, and supplies the gas phase refrigerant from which the refrigerating machine oil is removed to the four-way valve 33.
  • the outdoor unit 100 is connected through the liquid tube 45 and the gas pipe 46 to an indoor unit (not illustrated).
  • the air conditioner in the embodiment is configured such that a refrigerant is circulated between the outdoor unit 100 and the indoor unit and the four-way valve 33 is switched, thereby enabling cooling operation or air-heating operation.
  • Fig. 2 illustrates an inside of the oil separator 10 when the oil separator 10 is viewed from the upper direction.
  • Fig. 3 illustrates the inside of the oil separator 10 when the oil separator 10 is viewed from the direction of arrow III in Fig. 2 .
  • Fig. 4 illustrates the inside of the oil separator 10 when the oil separator 10 is viewed from the direction of arrow IV in Fig. 2 .
  • the oil separator 10 includes a pressure container (oil separator main body) 20, which is a cylindrical sealed container.
  • the pressure container 20 is configured with a container upper section 21, a container lower section 22, and a container barrel section 29.
  • the container upper section 21 and the container barrel section 29 are joined, and the container lower section 22 and the container barrel section 29 are joined, by welding or the like.
  • the openings are sealed with each other.
  • An upper end plate 23 is formed on an upper surface of the container upper section 21 in an integrated manner.
  • a lower end plate 24 is formed on a lower surface of the container lower section 22 in an integrated manner.
  • the upper end plate 23 is provided with a refrigerant inlet pipe 11 and a refrigerant outlet pipe 14.
  • Figs. 2 , 3 , and 4 illustrate not only outer walls of the refrigerant inlet pipe 11 and the refrigerant outlet pipe 14, but also their inner walls.
  • the discharge pipe 42A extending from the discharge opening of the compressor 30 is connected to the refrigerant inlet pipe 11.
  • the gas phase refrigerant that is discharged from the compressor 30 and contains the refrigerating machine oil is led into the pressure container 20 by the refrigerant inlet pipe 11.
  • the discharge pipe 42B linking to the four-way valve 33 is connected to the refrigerant outlet pipe 14.
  • the gas phase refrigerant from which the refrigerating machine oil is separated is discharged to the outside of the pressure container 20 by the refrigerant outlet pipe 14.
  • the lower end plate 24 is provided with an oil outlet pipe 25.
  • the oil outlet pipe 25 is connected to the oil return pipe 47.
  • the refrigerating machine oil in the pressure container 20 is discharged to the outside of the pressure container 20 by the oil outlet pipe 25.
  • the container lower section 22 of the pressure container 20 is provided with two leg portions 26.
  • the upper end part of each leg portion 26 is joined to a peripheral surface of the container lower section 22 by welding or the like.
  • the lower end part of each leg portion 26 is bent so as to be parallel with a contact surface (bottom plate of the outdoor unit 100). That is, the leg portions 26 are formed in a substantially L shape.
  • the pressure container 20 is configured to be longitudinally mounted with a spacing from the contact surface while standing with the leg portions 26.
  • Two leg portions 26 are assumed here, but three or more leg portions 26 may be used.
  • Fig. 3 illustrates a case in which the direction of the opening of the delivery port 13 is faced toward a curved portion of the upper end plate 23 of the pressure container 20.
  • the gas phase refrigerant delivered from the delivery port 13 collides against the curved portion of the pressure container 20. Then, a flow of the gas phase refrigerant is separated to a flow F1 moving further upward and a flow F2 moving further downward in the pressure container 20.
  • the gas phase refrigerant delivered from the delivery port 13 flows while deviating in a direction other than the delivery port 13. As a result, a high-speed rotational flow can be generated without loss of kinetic energy.
  • the refrigerant outlet pipe 14 penetrates the center C of the upper end plate 23 and a tip 15 of the refrigerant outlet pipe 14 extends further downward than the delivery port 13 of the refrigerant inlet pipe 11.
  • the direction of the opening of the tip 15 is a vertically downward direction. In this way, the refrigerant outlet pipe 14 is placed so as not to interfere with the refrigerant inlet pipe 11.
  • the refrigerant inlet pipe 11 is formed such that the angle ⁇ falls within a range of 45° ⁇ ⁇ ⁇ 90°.
  • the collision flow of the gas phase refrigerant collides against a ceiling surface of the upper end plate 23, and a rotational flow is generated from the ceiling surface. Therefore, because the height of the pressure container 20 can be used to make the path length of the rotational flow longer, the refrigerating machine oil separation rate can be improved.
  • the oil separator 10 it is possible to keep a sufficient distance between the opening face of the delivery port 13 of the refrigerant inlet pipe 11 and the ceiling surface of the upper end plate 23. Accordingly, it is possible to diffuse the gas phase refrigerant delivered from the delivery port 13 of the refrigerant inlet pipe 11 before the gas phase refrigerant reaches the ceiling surface of the upper end plate 23.
  • the gas phase refrigerant from which the refrigerating machine oil is separated inside the pressure container 20 is stored in a space higher than the liquid level of the refrigerating machine oil stored in the container lower section 22 of the pressure container 20. Then, the gas phase refrigerant enters the refrigerant outlet pipe 14 and is supplied to the four-way valve 33 through the discharge pipe 42B.
  • Fig. 6 is a streamline diagram illustrating an example of a flow of the gas phase refrigerant.
  • the streamline diagram was obtained as a result of numerical simulation.
  • the gas phase refrigerant flowing out of the refrigerant inlet pipe 11 collides against the ceiling surface of the oil separator 10. Then, the gas phase refrigerant falls within the oil separator 10 while rotating, and rises again. In this process, the refrigerating machine oil is separated from the gas phase refrigerant, and the gas phase refrigerant from which the refrigerating machine oil is separated flows out of the oil separator 10 through the refrigerant outlet pipe 14.
  • the refrigerant inlet pipe 11 is introduced into the pressure container 20 through the upper end plate 23, but this is not a limitation.
  • the refrigerant inlet pipe 11 may be introduced into the pressure container 20 through the side wall or the lower part (lower end plate 24) of the pressure container 20, provided that the angle ⁇ between a straight line along the direction of the opening of the delivery port 13 and a plane perpendicular to the central axis of the pressure container 20 satisfies 45° ⁇ ⁇ ⁇ 90°.
  • the angle ⁇ between a straight line along the direction of the opening of the delivery port 13 at a tip of the refrigerant inlet pipe 11 introduced into the pressure container 20 and a plane perpendicular to the central axis of the pressure container 20 satisfies 45° ⁇ ⁇ ⁇ 90°.
  • the gas phase refrigerant flows out of the refrigerant inlet pipe 11 obliquely upward and collides against the pressure container 20, and a high rate of gas phase refrigerant reaches the ceiling of the pressure container 20. Then, the gas phase refrigerant flows downward from the ceiling of the pressure container 20 while rotating.
  • the second embodiment of the present disclosure provides an oil separator in which, in the first embodiment, when D is the inner diameter of the refrigerant inlet pipe 11, the distance x from the inner wall of the pressure container 20 to the center position of the delivery port 13 of the refrigerant inlet pipe 11 satisfies a relationship of D/2 ⁇ x ⁇ 1.6D.
  • the oil separation rate can be improved significantly.
  • the fourth embodiment of the present disclosure provides an oil separator in which, in any one of the first to third embodiments, the direction of the opening of the delivery port 13 is faced toward a curved portion of the upper end plate 23 of the pressure container 20.
  • the gas phase refrigerant can be smoothly directed upward in the pressure container 20, and loss of kinetic energy of the gas phase refrigerant can be suppressed.
  • the fifth embodiment of the present disclosure provides an oil separator in which, in any one of the first to fourth embodiments, the refrigerant inlet pipe 11 has the curved portion 12, and a reticulated member is provided inside the refrigerant inlet pipe 11 at the upstream side of the curved portion 12.
  • the reticulated member can be used to separate the refrigerating machine oil from the gas phase refrigerant to some extent, and the oil separation efficiency can be further improved.
  • the sixth embodiment of the present disclosure assumes that, in any one of the first to fifth embodiments, the refrigerant outlet pipe 14 is connected to the pressure container 20 on the central axis AX of the pressure container 20, and the refrigerant inlet pipe 11 is connected to the pressure container 20 at a position deviated from the central axis AX of the pressure container 20.
  • the refrigerant outlet pipe 14 is connected to the pressure container 20 on the central axis AX of the pressure container 20
  • the refrigerant inlet pipe 11 is connected to the pressure container 20 at a position deviated from the central axis AX of the pressure container 20.
  • the oil separator 10 is used for an air conditioner that includes one inverter compressor 30, but this is not a limitation; the oil separator 10 may be used for an air conditioner that includes a plurality of inverter compressors and constant-speed compressors. In addition, the oil separator 10 may also be used for a gas heat pump air conditioner.
  • the oil separator according to the present disclosure is useful as an oil separator that separates refrigerating machine oil contained in a gas phase refrigerant.

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)
EP15153295.9A 2014-02-13 2015-01-30 Séparateur d'huile Active EP2910875B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014025469 2014-02-13

Publications (2)

Publication Number Publication Date
EP2910875A1 true EP2910875A1 (fr) 2015-08-26
EP2910875B1 EP2910875B1 (fr) 2024-03-06

Family

ID=52440588

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15153295.9A Active EP2910875B1 (fr) 2014-02-13 2015-01-30 Séparateur d'huile

Country Status (4)

Country Link
EP (1) EP2910875B1 (fr)
JP (1) JP6403061B2 (fr)
KR (1) KR102183547B1 (fr)
CN (1) CN104848615B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108168165B (zh) * 2018-02-13 2020-04-24 天津商业大学 一种氟制冷系统气液油分离器
JP7358833B2 (ja) * 2019-08-13 2023-10-11 富士電機株式会社 油分離装置
JP7453517B2 (ja) 2020-02-27 2024-03-21 東亜ディーケーケー株式会社 砂濾過装置の砂濾過ユニット

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6458970A (en) * 1987-08-31 1989-03-06 Mitsubishi Electric Corp Heat pump type air conditioner
JPH06235572A (ja) * 1993-02-10 1994-08-23 Hitachi Ltd 冷凍装置の油分離器
JPH11173706A (ja) 1997-12-08 1999-07-02 Mitsubishi Electric Corp オイルセパレータ
JP2000088369A (ja) * 1998-09-10 2000-03-31 Mitsubishi Electric Corp 冷凍サイクル
JP2011247575A (ja) * 2010-04-26 2011-12-08 Nichirei Kogyo Kk 気液分離装置及び気液分離装置を備えた冷凍装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07218009A (ja) * 1994-02-01 1995-08-18 Hitachi Ltd 冷蔵庫用冷凍サイクル
JPH07260292A (ja) * 1994-03-23 1995-10-13 Matsushita Refrig Co Ltd 冷却システム
FR2718833B1 (fr) * 1994-04-19 1997-04-11 Daewoo Electronics Co Ltd Accumulateur destiné à être utilisé dans un réfrigérateur.
JPH09210509A (ja) * 1996-02-07 1997-08-12 Sanyo Electric Co Ltd アキュムレータ
KR100613505B1 (ko) * 2004-02-25 2006-08-17 엘지전자 주식회사 냉동 사이클 장치
JP2008202894A (ja) * 2007-02-21 2008-09-04 Yanmar Co Ltd オイルセパレータ
JP2009074756A (ja) * 2007-09-21 2009-04-09 Mitsubishi Electric Corp 圧縮機マフラ
JP2011058431A (ja) * 2009-09-10 2011-03-24 Toshiba Carrier Corp 密閉型回転式圧縮機および冷凍サイクル装置
JP6296322B2 (ja) * 2013-02-20 2018-03-20 パナソニックＩｐマネジメント株式会社 オイルセパレータ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6458970A (en) * 1987-08-31 1989-03-06 Mitsubishi Electric Corp Heat pump type air conditioner
JPH06235572A (ja) * 1993-02-10 1994-08-23 Hitachi Ltd 冷凍装置の油分離器
JPH11173706A (ja) 1997-12-08 1999-07-02 Mitsubishi Electric Corp オイルセパレータ
JP2000088369A (ja) * 1998-09-10 2000-03-31 Mitsubishi Electric Corp 冷凍サイクル
JP2011247575A (ja) * 2010-04-26 2011-12-08 Nichirei Kogyo Kk 気液分離装置及び気液分離装置を備えた冷凍装置

Also Published As

Publication number Publication date
KR20150095550A (ko) 2015-08-21
KR102183547B1 (ko) 2020-11-26
CN104848615B (zh) 2019-05-14
JP2015166668A (ja) 2015-09-24
JP6403061B2 (ja) 2018-10-10
EP2910875B1 (fr) 2024-03-06
CN104848615A (zh) 2015-08-19

Similar Documents

Publication Publication Date Title
US11015850B2 (en) Oil separator
JP5863609B2 (ja) スクリュー圧縮機及びこれを備えるチラーユニット
KR101607509B1 (ko) 강하막 증발기와 수평 오일 분리기를 구비한 냉각기 또는 히트펌프
EP2910875B1 (fr) Séparateur d'huile
EP2437006A1 (fr) Dispositif à cycle de réfrigération
JPWO2012026004A1 (ja) アキュムレータ及び蒸気圧縮式冷凍サイクル装置及び気液分離方法
US9863675B2 (en) Oil separator and method for producing oil separator
US10578108B2 (en) Electric compressor
CN104949406A (zh) 一种气液分离器
JP6193306B2 (ja) スクリュー圧縮機及びこれを備えるチラーユニット
JP6296322B2 (ja) オイルセパレータ
JPWO2014083900A1 (ja) 圧縮機、冷凍サイクル装置およびヒートポンプ給湯装置
JP2015096781A (ja) 油分離器
JP2016070607A (ja) オイルセパレータ
CN104006588A (zh) 三级分离式高效卧式分油装置
CN204202262U (zh) 三级分离式高效卧式分油装置
JP7388822B2 (ja) 油分離装置および圧縮機
JP6827554B2 (ja) 油分離器およびそれを備えた空気調和機
JP6710294B2 (ja) 圧縮機及び冷凍サイクル装置
JP6782517B2 (ja) 油分離器
KR101813803B1 (ko) 급유식 스크류 압축기
CN218581813U (zh) 压缩机
CN218780496U (zh) 压缩机
EP4339536A1 (fr) Récipient de stockage de fluide frigorigène, et dispositif à cycle frigorifique doté dudit récipient de stockage de fluide frigorigène
EP3974747A2 (fr) Égalisation d'huile de multi-compresseur

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): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

17P Request for examination filed

Effective date: 20160226

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

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

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20181029

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

Free format text: STATUS: EXAMINATION IS IN PROGRESS

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

Free format text: STATUS: EXAMINATION IS IN PROGRESS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20230901

RIN1 Information on inventor provided before grant (corrected)

Inventor name: IMAI, SATOSHI

Inventor name: OGAWA, OSAMU

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602015087783

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D