WO2018130134A1 - Compresseur - Google Patents

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Publication number
WO2018130134A1
WO2018130134A1 PCT/CN2018/071878 CN2018071878W WO2018130134A1 WO 2018130134 A1 WO2018130134 A1 WO 2018130134A1 CN 2018071878 W CN2018071878 W CN 2018071878W WO 2018130134 A1 WO2018130134 A1 WO 2018130134A1
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WO
WIPO (PCT)
Prior art keywords
oil
separation device
gas
gas separation
wall
Prior art date
Application number
PCT/CN2018/071878
Other languages
English (en)
Chinese (zh)
Inventor
赵跟辉
王石
周启明
毛安兵
Original Assignee
艾默生环境优化技术(苏州)有限公司
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
Priority claimed from CN201710019510.7A external-priority patent/CN108286522B/zh
Priority claimed from CN201720028776.3U external-priority patent/CN206708021U/zh
Application filed by 艾默生环境优化技术(苏州)有限公司 filed Critical 艾默生环境优化技术(苏州)有限公司
Publication of WO2018130134A1 publication Critical patent/WO2018130134A1/fr

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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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation

Definitions

  • the invention relates to a compressor.
  • Compressors typically include a compression mechanism, a drive shaft, and a motor.
  • the drive shaft is supported by bearings within the bearing housing and is rotated by the motor.
  • the rotation of the drive shaft in turn drives the movable member of the compression mechanism (for example, the orbiting scroll of the scroll compressor, the rotor of the rotor compressor, etc.) to compress the working fluid (for example, the refrigerant).
  • Each movable part of the compressor (for example, the scroll of the scroll compressor, the rotor of the rotor compressor, the bearing, etc.) requires lubrication of the lubricating oil to maintain the stability and reliability of the operation of the respective movable parts and the entire compressor. Sex. Therefore, the lubricating oil circulation system of the compressor is an important part of the compressor.
  • the lubricating oil is delivered from the oil sump to the respective movable parts of the compressor under the action of a pressure difference or under the action of a pumping mechanism to lubricate the various components to maintain the normal movement of the movable parts. Run and finally return to the oil pool.
  • the lubricating oil it can also carry away impurities between the contact surfaces of the various components to reduce wear and the tropical travel of the various components due to friction or current.
  • the compressor needs to properly control its lubricating oil circulation rate (also referred to as oil circulation rate).
  • the oil circulation rate can be understood as the (mass) ratio of the lubricating oil contained in each unit of the working fluid discharged from the compressor.
  • Another object of the present invention is to provide a compressor including an oil and gas separation device that efficiently separates lubricating oil from an oil and gas mixture.
  • Another object of the present invention is to provide a compressor that is easy to manufacture and assemble.
  • a compressor comprising a housing, a compression mechanism disposed within the housing, and an oil and gas separation device.
  • An exhaust pipe and an intake pipe are disposed on the outer casing.
  • the compression mechanism has an exhaust port and an intake port.
  • the oil and gas separation device is disposed on an exhaust path between an exhaust port of the compression mechanism and an exhaust pipe of the outer casing or between an intake pipe of the outer casing and an intake port of the compression mechanism
  • the oil and gas separation device is configured as a cyclone type oil and gas separation device, so that the lubricating oil entering the oil and gas mixture in the oil and gas separation device can be separated from the working fluid by the centrifugal force, and is separated by the oil and gas.
  • a working fluid exits the compressor via the exhaust pipe.
  • the compressor since the compressor includes the cyclone type oil and gas separation device, the lubricating oil can be separated from the oil and gas mixture before the oil and gas mixture leaves the compressor to well control the lubricating oil circulation rate.
  • the oil level in the oil sump in the compressor can be maintained at a desired level.
  • the amount of lubricating oil exiting the compressor into the compressor system can be reduced, for example, by reducing the amount of lubricating oil entering the heat exchanger, thereby increasing the overall operating efficiency of the compressor system.
  • the oil and gas separation device includes a wall including an inlet for introducing an oil and gas mixture into the oil and gas separation device and a gas outlet for discharging a working fluid from the oil and gas separation device,
  • the wall is configured to enable the oil and gas mixture entering the oil and gas separation device to rotate along an inner surface of the wall.
  • the wall of the oil and gas separation device is cylindrical or conical.
  • the inlet and the gas outlet are spaced apart in a circumferential direction of the wall and spaced apart in a longitudinal direction of the wall. In this configuration, it is advantageous to separate the lubricating oil and the working fluid from the oil and gas mixture, and to facilitate the discharge of the working fluid.
  • the inlet and the gas outlet are spaced apart from each other by 160 to 200 degrees in the circumferential direction of the wall.
  • the inlet and the gas outlet are spaced apart by 180 degrees in the circumferential direction of the wall.
  • the inlet is disposed at one end of the wall
  • the gas outlet is disposed at the other end of the wall or at a portion of the wall between the one end and the other end.
  • the oil and gas separation device further includes a guide for introducing an oil and gas mixture to an inner surface of the wall, the guide being positioned at an inlet of the oil and gas separation device.
  • a guide for introducing an oil and gas mixture to an inner surface of the wall, the guide being positioned at an inlet of the oil and gas separation device.
  • the guide is further oriented obliquely toward the gas outlet to move the oil and gas mixture along the wall toward the gas outlet. In this configuration, the discharge of the working fluid is facilitated.
  • the oil-gas separation device further includes a bottom portion extending radially inward from one end of the wall, and a lubricating oil outlet for discharging lubricating oil from the oil-gas separation device is formed in the bottom portion.
  • the bottom prevents or reduces the effects of ambient gases on the separation of oil and gas in the oil and gas separation unit.
  • the lubricating oil outlet includes a plurality of holes disposed on the bottom in a circumferential direction.
  • the exhaust pipe is coupled to the gas outlet of the oil and gas separation device to discharge working fluid separated by oil and gas out of the compressor.
  • the exhaust pipe projects further inwardly from the gas outlet beyond the wall. In this configuration, it is possible to further prevent the lubricating oil from flowing through the gas outlet and discharged to the outside of the compressor along with the working fluid.
  • the compressor further includes a main bearing housing disposed within the outer casing and supporting the compression mechanism, the oil and gas separation device being positioned opposite the compression mechanism of the main bearing housing One side and fixed to the main bearing housing.
  • the compressor further includes a motor disposed within the outer casing for driving rotation of the drive shaft, the lubricating oil outlet of the oil and gas separation device being located above a stator winding of the motor.
  • the oil and gas separation device further includes a flange for mounting the oil and gas separation device, the flange being radially inward or outward from an end of the wall proximate the main bearing housing extend.
  • the oil and gas separation device further includes a baffle located radially inward of the wall. In this configuration, the influence of the surrounding gas on the oil-gas separation and/or the flow of the working fluid in the oil-gas separation device can be prevented or reduced.
  • the baffle is formed in a cylindrical or conical shape, forming an annular space between the baffle and the wall.
  • the baffle extends beyond the bottom.
  • the baffle surrounds a counterweight of the compressor.
  • the oil and gas separation device further includes a baffle extending further from a radially inner end of the bottom thereof toward a motor of the compressor.
  • the compressor further includes a communication tube for fluidly communicating an exhaust port of the compression mechanism with an inlet of the oil and gas separation device or a gas outlet for the oil and gas separation device A communication tube in which the suction port of the compression mechanism is in fluid communication. Due to the presence of the communication pipe, the installation position of the oil and gas separation device can be made more flexible.
  • FIG. 1 is a longitudinal sectional view of a compressor including an oil and gas separation device according to an embodiment of the present invention
  • Figure 2 is a partially enlarged schematic view of a portion of the compressor of Figure 1 including an oil and gas separation device;
  • Figure 3 is a perspective view of the oil and gas separation device of Figure 1;
  • Figure 4 is another perspective view of the oil and gas separation device of Figure 1;
  • Figure 5 is a cross-sectional view of the oil and gas separation device of Figure 1;
  • Figure 6 is another schematic cross-sectional view of the oil and gas separation device of Figure 1;
  • Figure 7 is a partially enlarged schematic view showing a portion of a compressor including an oil-gas separation device according to another embodiment of the present invention.
  • Figure 8 is a perspective view of the oil and gas separation device of Figure 7;
  • Figure 9 is another perspective view of the oil and gas separation device of Figure 7;
  • Figure 10 is a perspective view of an oil and gas separation device according to an embodiment of the present invention.
  • Figure 11 is another perspective view of the oil and gas separation device of Figure 10;
  • Figure 12 is a schematic cross-sectional view of the oil and gas separation device of Figure 10.
  • a compressor including an oil and gas separation device will be described below with reference to the accompanying drawings. Shown in the drawings is a high pressure side vertical scroll compressor, however, it should be understood that the present invention is also applicable to other types of compressors, such as horizontal scroll compressors, low pressure side scroll compressors, rotors. Compressors, piston compressors, etc.
  • the compressor 10 includes a housing 11, a compression mechanism 12 disposed within the housing 11, a motor 13 and a drive shaft (which may also be referred to as a rotating shaft or crankshaft) 14.
  • the compression mechanism 12 includes a fixed scroll member 12a fixed to the outer casing 11 and an orbiting scroll member 12b movable relative to the fixed scroll member 12a.
  • the motor 13 is configured to rotate the drive shaft 14, and then the rotation of the drive shaft 14 causes the orbiting scroll member 12b to orbit relative to the fixed scroll member 12a (i.e., the central axis of the orbiting scroll member wraps around the center of the scroll member) The axis moves, but the orbiting scroll member itself does not rotate about its central axis).
  • a series of compression chambers whose volume gradually decreases from the radially outer side to the radially inner side are formed between the spiral blade of the fixed scroll member 12a and the spiral blade of the movable scroll member 12b.
  • the gas is compressed in these compression chambers and then discharged through the exhaust port 17 of the compression mechanism 12.
  • the exhaust port 17 of the compression mechanism 12 is generally disposed at substantially the center of the end plate of the fixed scroll member 12a.
  • the compressor 10 also includes a main bearing housing 15.
  • the main bearing housing 15 is configured to support the compression mechanism 12, particularly the orbiting scroll member 12b.
  • a main bearing 15a may be housed in the main bearing housing 15 to rotatably support the drive shaft 14.
  • an oil reservoir 20 is provided at the bottom of the compressor casing 11, and lubricating oil is stored in the oil reservoir 20.
  • a passage 14a extending substantially in the axial direction thereof may be formed in the drive shaft 14, through which the lubricating oil in the oil reservoir 20 is supplied to the respective bearings of the compressor, between the main bearing housing 15 and the movable scroll member 12b. Support surface, as well as components such as compression mechanisms. After lubricating the various components of the compressor, the lubricating oil is returned to the sump 20.
  • the compressor 10 is a high pressure side scroll compressor.
  • An exhaust pipe 16 and an intake pipe 19 are provided on the outer casing 11.
  • the low-pressure working fluid is directly supplied to the suction or low-pressure chamber of the compression mechanism 12 through the intake port 19 and the suction port (not shown) of the compression mechanism, and then compressed and discharged from the exhaust port 17 of the compression mechanism 12 to the compression.
  • the discharge port 18 is positioned at a position between the main bearing housing 15 and the motor 13.
  • An exhaust pipe 16 is sealingly mounted in the discharge port 18 to discharge compressed gas from the compressor 10.
  • the working fluid discharged from the exhaust port 17 includes a certain amount of lubricating oil, and the lubricating oil supplied from the passage 14a of the drive shaft 14 due to the movement of the movable scroll member 12b, the motor rotor, and the like. It is distributed in the space inside the compressor casing 11 in the form of an oil mist. Therefore, the high-pressure working fluid to be discharged from the exhaust pipe 16 often contains lubricating oil, and therefore it is necessary to control the amount of lubricating oil in the working fluid discharged from the compressor via the exhaust pipe 16 to control the oil circulation rate of the entire compressor.
  • the low pressure gas typically enters the enclosure via the intake manifold of the outer casing and carries the misted lubricating oil within the outer casing during the flow toward the compression mechanism to form a low pressure oil and gas mixture.
  • the oil and gas mixture enters the compression mechanism via the suction port of the compression mechanism. It is desirable in the art to provide suitable lubricating oil to the compression mechanism.
  • the amount of lubricating oil contained in a low pressure oil and gas mixture is often uncertain. Thus, the amount of lubricating oil carried into the compression mechanism by the low pressure oil and gas mixture is not easily controlled. In contrast, the amount of lubricating oil supplied to the compression mechanism by the lubricating oil supply mechanism is relatively easy to control.
  • an oil and gas separation device may be disposed on the suction path between the intake pipe of the outer casing and the suction port of the compression mechanism to draw the lubrication contained in the low-pressure oil and gas mixture in the compression mechanism through the suction port of the compression mechanism.
  • the oil is minimized and the lubricant required in the compression mechanism is controlled relatively accurately by the oil supply mechanism.
  • the space inside the outer casing of the low-pressure side compressor is divided into a low-pressure space and a high-pressure space by a partition plate (also referred to as a "muffler plate").
  • the amount of the lubricating oil in the compression mechanism is controlled to a reasonable range
  • the amount of the lubricating oil discharged from the compressor with the high-pressure working fluid can also be controlled within a reasonable range.
  • the oil circulation rate of the lubricating oil can be controlled by providing an oil-gas separation device in the low-pressure side compressor.
  • the compressor 10 further includes an oil and gas separation device 100.
  • the oil and gas separation device 100 may be configured as a spiral or cyclone type oil and gas separation device that separates lubricating oil and working fluid by centrifugal force generated by spiral motion or cyclone.
  • the oil and gas separation device 100 is configured to separate lubricating oil from a high pressure or low pressure working fluid.
  • the oil-gas separation device 100 according to the present invention may be disposed between the main bearing housing 15 and the motor 13.
  • the oil and gas separation device 100 can be disposed adjacent to the discharge port 18 on the outer casing 11.
  • the oil-gas separation device 100 may also be disposed at other locations on the exhaust path between the exhaust port 17 of the compression mechanism and the exhaust port 18 or exhaust pipe 16 of the outer casing or the intake pipe and the compression disposed in the outer casing Any suitable location on the suction path between the suction ports of the mechanism.
  • the oil and gas separation device 100 may be connected to the exhaust pipe 16 to discharge the compressed working fluid to the outside of the compressor through the exhaust pipe 16.
  • the compressor may further include a communication tube for fluidly communicating the exhaust port of the compression mechanism with the inlet of the oil and gas separation device or for fluidly communicating the suction port of the compression mechanism with the gas outlet of the oil and gas separation device. Connecting pipe.
  • the oil and gas separation device may be allowed to be disposed at any suitable location within the compressor by providing or configuring a communication tube and/or an exhaust pipe.
  • the oil and gas separation device 100 includes a conical wall 101.
  • the horizontal section of the wall 101 is formed to gradually narrow from the main bearing housing 15 toward the motor 13 in the longitudinal direction of the compressor.
  • the wall 101 can have any other suitable shape, for example, can be cylindrical.
  • An inlet 102 for introducing an oil and gas mixture (i.e., a working fluid containing lubricating oil) into the oil and gas separation device 100 is opened on the wall 101, and a working fluid containing no or a small amount separated from the oil and gas mixture is discharged to the oil and gas.
  • a gas outlet 104 outside the separation device 100.
  • the inlet 102 of the oil-gas separation device 100 may be disposed adjacent the upper end of the wall 101 (i.e., the first end of the conical section having a larger cross-sectional area).
  • the oil and gas mixture introduced from the inlet 102 rotates along the inner surface of the wall 101 due to the shape of the wall 101 and moves downward.
  • the oil droplets of the lubricating oil are deflected by the centrifugal force toward the inner surface of the wall 101 (the centrifugal force is absorbed due to the mass of the oil droplets being greater than the mass of the gas) It is separated from the oil and gas mixture, and flows downward along the inner surface of the wall 101 under the action of gravity and spiral motion to return to the oil sump 20.
  • the oil and gas separation device 100 may further include a guide portion 107 positioned at the inlet 102 of the oil-gas separation device 100.
  • the guide portion 107 causes the oil and gas mixture to be introduced into the oil-gas separation device 100 in a direction tangential to the inner surface of the wall 101.
  • the direction of extension of the guide portion 107 can be oriented to be tangent to the circumference of the wall 101.
  • the guide portion 107 may be configured as a plate member or as a cylindrical member as shown in FIG. 5.
  • the inlet 102 and the gas outlet 104 may be spaced apart a certain distance in the circumferential direction of the wall 101 and also spaced apart in the longitudinal direction of the wall 101.
  • the rotational movement of the oil and gas mixture along the inner surface of the wall 101 includes both circular motion and longitudinal motion. That is, the oil and gas mixture moves along the longitudinal direction of the oil and gas separation device toward the gas outlet 104 while moving along the circumference of the inner surface of the wall 101.
  • Such a configuration facilitates more efficient separation into lubricating oil from the oil and gas mixture.
  • the distance (angle or curvature) of the inlet 102 from the gas outlet 104 in the circumferential direction may be determined according to a specific application, for example, may be 160 degrees - 200 degrees, preferably 180 degrees in the circumferential direction.
  • the separation distance of the inlet 102 from the gas outlet 104 in the longitudinal direction of the wall 101 can also be determined depending on the particular application.
  • the gas outlet 104 is positioned in the middle or the lower portion of the wall 101 in the longitudinal direction.
  • the inlet 102 is above the gas outlet 104. Accordingly, the guide portion 107 can be oriented obliquely downward so that the oil and gas mixture enters the oil and gas separation device 100 in a manner tangential to the inner surface of the wall 101 and moves downward toward the gas outlet 104.
  • the exhaust pipe 16 is connected to the gas outlet 104, and in a preferred manner, the inner end 16a of the exhaust pipe 16 projects further inward from the wall 101 of the oil and gas separation device 100, as shown in FIG. Thereby, it is possible to prevent the lubricating oil adhering to the inner surface of the wall 101 or flowing along the inner surface of the wall 101 from flowing into the inner end 16a of the exhaust pipe 16 from the gas outlet 104.
  • a flange 105 may be provided at the first end (axial end) of the wall 101 to facilitate installation of the oil and gas separation device.
  • the oil and gas separation device 100 can be mounted to the bottom surface of the main bearing housing 15.
  • the flange 105 extends radially outward from the first end of the wall 101. In other examples, the flange may also extend radially inward from the first end of the wall 101.
  • a bottom 103 may be provided at a second end of the wall 101 opposite the first end. The bottom portion 103 extends radially inward from the second end of the wall 101 (ie, toward the drive shaft 14).
  • the bottom portion 103 can be substantially annular.
  • a lubricating oil outlet 106 for discharging the lubricating oil separated from the oil and gas mixture to the outside of the oil and gas separation device may be disposed on the bottom portion 103.
  • the lubricating oil outlet 106 is a plurality of holes disposed on the bottom portion 103 in the circumferential direction in the illustrated example. Alternatively, the holes may be arranged at equal intervals. It should be understood that the lubricating oil outlet 106 may be in other forms, such as an annular groove, a curved groove, or the like. Alternatively, the lubricating oil outlet 106 may be located above the stator windings of the motor 13 so that the lubricating oil returns to the sump via the gap between the windings.
  • the oil and gas separation device 100 may be provided with a baffle 108a.
  • a weight 30a is provided on the drive shaft 14 of the compressor 10, and counterweights 30b and 30c are also provided on the rotor of the motor 13.
  • the weights 30a, 30b, and 30c also rotate together, thereby possibly causing disturbance to the gas flow in the oil and gas separation device.
  • the baffle 108a may be provided between the weights 30a and/or 30b and the wall 101 of the oil-gas separation device 100, that is, the baffle 108a is disposed radially inward of the wall 101.
  • An annular space is formed between the baffle 108a and the wall 101 in which the oil and gas mixture flows.
  • the baffle 108a may be fixedly coupled to the flange 105 by a flange 109 or may be integrally formed with the flange 105. In other examples, the baffle 108a may be fixedly coupled to the base 103 (eg, the radially inner end of the base 103) or may be integrally formed with the base 103 (eg, the radially inner end of the base 103). In the illustrated example, the baffle 108a is generally cylindrical. However, it should be understood that the baffle 108a can have any other suitable shape, such as a conical shape.
  • the lower end of the baffle 108a may be formed to protrude further downward from the bottom portion 103 to surround the balance weight 30b, or the lower end of the baffle 108a may be formed only to be substantially flush with the bottom portion 103. In the case where the lower end of the baffle 108a is fixedly coupled to the bottom portion 103, the flange 109 of the baffle 108a may be omitted.
  • the size, configuration, location, etc. of the baffles may vary or be omitted depending on the particular application.
  • the baffle may extend from either the radially inner end of the bottom toward either or both sides of the bottom.
  • the baffle 108b extends downward from the radially inner end of the bottom portion 103.
  • the baffle is omitted.
  • the inlet 102 and/or the guide portion 107 are formed to introduce the oil and gas mixture into the oil and gas separation device 100 along the rotational direction of the drive shaft 14, whereby the airflow movement caused by the rotation of the drive shaft 14
  • the direction of movement is the same as the direction of movement of the oil-gas mixture introduced into the oil-gas separation device 100, thereby contributing to further enhancing the cyclone or spiral action that causes the oil droplets to separate.
  • the above oil and gas separation device may be referred to as a cyclone type oil and gas separation device.
  • the oil and gas separation device of the invention has the advantages of simple structure, easy manufacture, flexible installation position, convenient installation, and high efficiency of separating lubricating oil and working fluid from the oil and gas mixture.
  • the oil and gas separation device may have no bottom, thereby allowing the lubricating oil to fall directly into the sump along the wall.
  • Other variations and modifications can be made by those skilled in the art without departing from the spirit and scope of the invention. All such variations and modifications are intended to fall within the scope of the invention.
  • all of the components described herein can be replaced by other technically equivalent components.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Compressor (AREA)

Abstract

L'invention concerne un compresseur (10) comprenant une enveloppe (11), ainsi qu'un mécanisme de compression (12) et un dispositif de séparation huile-gaz (100) agencés à l'intérieur de l'enveloppe (11). L'enveloppe (11) est munie d'un tuyau d'évacuation de gaz (16) et d'un tuyau d'entrée de gaz (19). Le mécanisme de compression (12) est muni d'un évent de gaz (17) et d'un orifice d'entrée de gaz. Le dispositif de séparation huile-gaz (100) est agencé sur un circuit d'évacuation de gaz entre l'évent de gaz (17) du mécanisme de compression (12) et le tuyau d'évacuation de gaz (16) de l'enveloppe (11), ou bien il est agencé sur un circuit d'entrée de gaz entre le tuyau d'entrée de gaz (19) de l'enveloppe (11) et l'orifice d'entrée de gaz du mécanisme de compression (12) ; le dispositif de séparation huile-gaz (100) prend la forme d'un dispositif de séparation huile-gaz à tourbillon afin de permettre la séparation de l'huile lubrifiante, dans un mélange huile-gaz entrant dans le dispositif de séparation huile-gaz (100), à partir d'un fluide actif sous influence de la force centrifuge ; le fluide actif soumis à séparation huile-gaz est évacué du compresseur (10) à travers le tuyau d'évacuation de gaz (16). Le compresseur (10) peut réguler efficacement le débit d'huile lubrifiante.
PCT/CN2018/071878 2017-01-10 2018-01-09 Compresseur WO2018130134A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201710019510.7A CN108286522B (zh) 2017-01-10 2017-01-10 压缩机
CN201710019510.7 2017-01-10
CN201720028776.3U CN206708021U (zh) 2017-01-10 2017-01-10 压缩机
CN201720028776.3 2017-01-10

Publications (1)

Publication Number Publication Date
WO2018130134A1 true WO2018130134A1 (fr) 2018-07-19

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Cited By (5)

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CN111156153A (zh) * 2019-12-31 2020-05-15 浙江山海能源装备有限公司 空压机油气分离结构
EP4008905A1 (fr) * 2020-12-03 2022-06-08 LG Electronics Inc. Compresseur à spirale et climatiseur le comprenant
CN114857009A (zh) * 2022-06-06 2022-08-05 珠海格力电器股份有限公司 一种油气分离结构、压缩机
US20220299024A1 (en) * 2021-03-19 2022-09-22 Lg Electronics Inc. Hermetic compressor
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CN111156153A (zh) * 2019-12-31 2020-05-15 浙江山海能源装备有限公司 空压机油气分离结构
CN111156153B (zh) * 2019-12-31 2024-05-28 浙江山海能源装备有限公司 空压机油气分离结构
EP4008905A1 (fr) * 2020-12-03 2022-06-08 LG Electronics Inc. Compresseur à spirale et climatiseur le comprenant
US11815093B2 (en) 2020-12-03 2023-11-14 Lg Electronics Inc. Scroll compressor and air conditioner having the same
US20220299024A1 (en) * 2021-03-19 2022-09-22 Lg Electronics Inc. Hermetic compressor
US11692547B2 (en) * 2021-03-19 2023-07-04 Lg Electronics Inc. Hermetic compressor having oil guide that surrounds rotating shaft
CN114857009A (zh) * 2022-06-06 2022-08-05 珠海格力电器股份有限公司 一种油气分离结构、压缩机
CN114857009B (zh) * 2022-06-06 2023-06-30 珠海格力电器股份有限公司 一种油气分离结构、压缩机
CN115492769A (zh) * 2022-10-18 2022-12-20 珠海格力电器股份有限公司 一种涡旋压缩机及包括该涡旋压缩机的空调器

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