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WO2018171150A1 - Séparateur air/huile, compresseur à vis et unité de climatisation - Google Patents

Séparateur air/huile, compresseur à vis et unité de climatisation Download PDF

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Publication number
WO2018171150A1
WO2018171150A1 PCT/CN2017/103144 CN2017103144W WO2018171150A1 WO 2018171150 A1 WO2018171150 A1 WO 2018171150A1 CN 2017103144 W CN2017103144 W CN 2017103144W WO 2018171150 A1 WO2018171150 A1 WO 2018171150A1
Authority
WO
WIPO (PCT)
Prior art keywords
oil
barrel
chamber
screw compressor
oil drum
Prior art date
Application number
PCT/CN2017/103144
Other languages
English (en)
Chinese (zh)
Inventor
许云功
李日华
张天翼
张宝鸽
张贺龙
袁皓
Original Assignee
珠海格力电器股份有限公司
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
Application filed by 珠海格力电器股份有限公司 filed Critical 珠海格力电器股份有限公司
Publication of WO2018171150A1 publication Critical patent/WO2018171150A1/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
    • F04C29/026—Lubricant separation

Definitions

  • the invention relates to the field of air conditioning equipment, in particular to an oil drum, a screw compressor and an air conditioning unit.
  • the built-in oil and gas separation of the screw compressor adopts the separation structure of the oil filter.
  • the structure we use is shown in Figure 1.
  • the compressor is vented to the sealed chamber 3' formed by the oil filter 1' and the oil drum, and then discharged through the oil filter 1'.
  • the efficiency of oil and gas separation is related to the following factors.
  • the flow rate through the oil filter 1' usually the lower the flow rate, the higher the oil efficiency;
  • the second is the stroke of the air flow, the longer the stroke, the better the effect of oil and gas separation due to gravity;
  • the third is the impact with the inner wall of the air passage The larger the inner wall area of the airflow contact, the more the impact, the better the oil and gas separation effect.
  • the scheme adopted by the compressor has the following disadvantages: First, the sealing cavity is small, the effect of gravity separation and internal wall impact separation is not good; after the analysis of the flow field, it is found that the airflow tends to pass through the oil filter 1'. Concentration at the inner wall of the circumference of the oil drum, concentration will cause a large flow rate of this part of the air flow, and the consequence of the large flow rate is that the effect of the oil filter 1' is poor.
  • the present invention aims to provide an oil drum, a screw compressor and an air conditioning unit capable of improving the separation effect of oil and gas.
  • the present invention provides an oil sub-barrel comprising: a tub having a receiving chamber; an oil sub-assembly, the oil sub-assembly is disposed in the receiving chamber, and partitioning the receiving chamber into the first chamber and the second chamber, first The volume of the chamber is less than or equal to the volume of the second chamber, the oil subassembly includes an oil screen and a return barrel, the opening of the recirculation barrel facing the second chamber.
  • the oil barrel further includes an exhaust port corresponding to the first chamber disposed on the barrel wall of the tub and communicating with the first chamber.
  • the exhaust port is disposed on a side away from the recirculation tub.
  • the oil drum further includes an injection pipe disposed in the second chamber, and the injection port of the injection pipe faces the opening of the return bucket.
  • the area of the opening of the reflow bucket is 2 to 4 times the area of the injection port of the injection pipe.
  • the return bucket is fixedly disposed on the inner wall of the barrel, the oil filter screen is sleeved outside the return bucket, and covers the cross section of the barrel, and the oil filter screen is provided with a through hole.
  • the first chamber is located on a side of the barrel near the bottom.
  • a screw compressor including an oil sub-tank which is the above-described oil sub-bucket.
  • the barrel of the oil barrel is fixedly connected to the casing of the screw compressor, and the injection tube of the oil barrel is connected to the air outlet of the screw compressor.
  • an air conditioning unit that includes the screw compressor unit described above.
  • the oil filter screen and the return barrel are arranged in the barrel body, and the flow direction is changed by the reflux barrel to reduce the concentration of the air flow, and at the same time, the air flow and the wall surface impact oil and gravity oil are increased.
  • the effect is to comprehensively improve the oil efficiency of the compressor.
  • FIG. 1 is a schematic structural view of a prior art oil drum
  • Figure 2 is a schematic perspective view of a screw compressor according to the present invention.
  • Figure 3 is a cross-sectional structural view of a screw compressor according to the present invention.
  • Figure 4 is a perspective view showing the structure of a barrel and a return barrel of a screw compressor according to the present invention
  • Figure 5 is a front elevational view showing the structure of the barrel and the return barrel of the screw compressor according to the present invention.
  • Figure 6 is a perspective cross-sectional structural view of a barrel and a return barrel of a screw compressor according to the present invention.
  • the oil sub-tank includes a tub 10 and an oil sub-assembly, the tub 10 has a receiving chamber; the oil sub-assembly is disposed in the receiving chamber, and partitions the receiving chamber into the first chamber 11 and
  • the second chamber 12 has a volume of the first chamber 11 that is less than or equal to the volume of the second chamber 12, and the oil component includes an oil screen 21 and a return barrel 22, and the opening 221 of the return barrel 22 faces the second chamber 12.
  • the opening 221 of the reflux barrel 22 faces the second chamber 12, so that the air flow can be reduced in the second chamber 12, sufficiently with the inner wall of the barrel 10 and the second
  • the objects in the chamber 12 are in contact with each other to improve the efficiency of oil and gas separation, solve the problem of low oil efficiency in the prior art, and avoid concentration of airflow in the barrel wall.
  • the return bucket 22 is fixedly disposed on the inner wall of the tub body 10.
  • the oil filter screen 21 is sleeved outside the return bucket 22 and covers the cross section of the tub body 10.
  • the oil filter screen 21 is provided with Through hole.
  • the first chamber 11 is located on the side of the tub 10 near the bottom.
  • the oil sub-barrel further includes an exhaust port 31 disposed on the barrel wall of the tub 10 corresponding to the first chamber 11 and communicating with the first chamber 11.
  • the arrangement of the exhaust port 31 corresponding to the first chamber 11 ensures that the air flow must pass through the oil screen 21 before the oil barrel is discharged, thereby ensuring the oil separation effect.
  • the exhaust port 31 may also be disposed at the bottom of the tub 10 or the like.
  • the exhaust port 31 is disposed on a side away from the return tub 22 in the cross-sectional direction of the tub 10. This allows the gas to flow longer and the separation better.
  • the barrel 10 has a circular cross-sectional shape, the exhaust port 31 is located at one end of the circular diameter, and the recirculation barrel 22 is disposed at the other end of the circular diameter, but the exhaust port 31 and the return bucket 22 is not in the same cross section.
  • the oil drum further includes an injection pipe 40 disposed in the second chamber 12, and the injection port 41 of the injection pipe 40 faces the opening 221 of the return bucket 22.
  • the injection pipe 40 is used to introduce the airflow ejected by the compressor into the recirculation barrel 22, and the injection port 41 of the injection pipe 40 faces the recirculation barrel 22, so that the airflow can enter the recirculation barrel 22 accurately, and is directly injected into the reflow bucket 22 (in this case).
  • the reflux drum 22 is a bottom of a cylindrical shape.
  • the area of the opening 221 of the reflow tub 22 is determined according to the area of the ejection port 41.
  • the area of the opening 221 of the reflow tub 22 is 2 to 4 times the area of the ejection opening 41 of the ejection tube 40. If the area is too large, it will occupy the area of the oil filter 21 and affect the efficiency of the oil. If it is too small, a large pressure loss will be generated there to affect the energy efficiency.
  • a screw compressor including an oil sub-tank which is the above-described oil sub-bucket.
  • the barrel 10 of the oil barrel is fixedly coupled to the housing of the screw compressor, and the injection tube 40 of the oil barrel is connected to the air outlet of the screw compressor.
  • an air conditioning unit that includes the screw compressor unit described above.
  • the distribution of the airflow in the space (the second chamber 12) will be relatively uniform, and the airflow will not be concentrated in the near wall of the oil drum (the flow rate is large when the airflow is concentrated, and the efficiency of the oil filter is low when the flow velocity is large), thus The oil efficiency at the oil filter 21 is improved.
  • the flow of the airflow turns a curve, and thus the stroke of the airflow is longer, which enhances the separation effect of oil and gas generated by gravity. Therefore, the oil efficiency of the compressor can be effectively improved.
  • the oil drum, screw compressor and air conditioning unit according to the present invention have the following technical effects:
  • the large space (second chamber) on the right side of the oil barrel is fully utilized, and the airflow through the oil filter is evenly distributed to reduce the concentration of the airflow, and at the same time, the effect of the airflow and the wall against the oil and gravity oil is increased. To comprehensively improve the oil efficiency of the compressor.

Landscapes

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

Abstract

L'invention concerne un séparateur air/huile comprenant : un corps de séparateur (10) comprenant une cavité de réception; et un ensemble de séparation air/huile disposé dans la cavité de réception et divisant la cavité de réception en une première cavité (11) et une seconde cavité (12), le volume de la première cavité (11) étant inférieur ou égal au volume de la seconde cavité (12); l'ensemble de séparation air/huile comprend un filtre séparateur air/huile (21) et un récipient de refoulement (22), une ouverture (221) du récipient de refoulement (22) faisant face à la seconde cavité (12). L'invention concerne en outre un compresseur à vis et une unité de climatisation comprenant ledit séparateur air/huile. Ledit séparateur air/huile peut améliorer l'efficacité de séparation air/huile du compresseur.
PCT/CN2017/103144 2017-03-23 2017-09-25 Séparateur air/huile, compresseur à vis et unité de climatisation WO2018171150A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710178356.8A CN106870372B (zh) 2017-03-23 2017-03-23 油分桶、螺杆压缩机及空调机组
CN201710178356.8 2017-03-23

Publications (1)

Publication Number Publication Date
WO2018171150A1 true WO2018171150A1 (fr) 2018-09-27

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Application Number Title Priority Date Filing Date
PCT/CN2017/103144 WO2018171150A1 (fr) 2017-03-23 2017-09-25 Séparateur air/huile, compresseur à vis et unité de climatisation

Country Status (2)

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CN (1) CN106870372B (fr)
WO (1) WO2018171150A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106870372B (zh) * 2017-03-23 2019-01-01 珠海格力电器股份有限公司 油分桶、螺杆压缩机及空调机组
CN107630819A (zh) * 2017-10-10 2018-01-26 珠海格力电器股份有限公司 油分装置、螺杆压缩机及空调系统

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255099A (en) * 1977-12-29 1981-03-10 Seiko Keiki Kabushiki Kaisha Oil separator for compressor
US4714139A (en) * 1985-10-02 1987-12-22 Mtu Motoren-Und Turbinen Union Muenchen Gmbh Lubricating system for gas turbine engines and pump for such a system
JP2005002903A (ja) * 2003-06-12 2005-01-06 Calsonic Compressor Seizo Kk 気体圧縮機
CN203476712U (zh) * 2013-08-16 2014-03-12 中磁科技股份有限公司 滑阀真空泵油雾阱装置
CN203614417U (zh) * 2013-10-28 2014-05-28 中电电气(上海)太阳能科技有限公司 一种油气分离装置
CN105715551A (zh) * 2016-04-15 2016-06-29 珠海格力电器股份有限公司 油分离器及其油分桶
CN106870372A (zh) * 2017-03-23 2017-06-20 珠海格力电器股份有限公司 油分桶、螺杆压缩机及空调机组

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE141401T1 (de) * 1993-03-02 1996-08-15 Wimboeck Besitz Gmbh Vorrichtung zum abscheiden von partikeln, insbesondere öl- oder fettpartikeln
JP5374229B2 (ja) * 2009-05-15 2013-12-25 東芝キヤリア株式会社 密閉型圧縮機、冷凍サイクル装置
CN105797487B (zh) * 2014-12-30 2018-08-28 浙江大道环保科技有限公司 用于废塑料炼油的干式氯气回收装置
CN205744456U (zh) * 2016-05-16 2016-11-30 珠海格力电器股份有限公司 油分桶、螺杆压缩机和空调装置
CN207195199U (zh) * 2017-03-23 2018-04-06 珠海格力电器股份有限公司 油分桶、螺杆压缩机及空调机组

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255099A (en) * 1977-12-29 1981-03-10 Seiko Keiki Kabushiki Kaisha Oil separator for compressor
US4714139A (en) * 1985-10-02 1987-12-22 Mtu Motoren-Und Turbinen Union Muenchen Gmbh Lubricating system for gas turbine engines and pump for such a system
JP2005002903A (ja) * 2003-06-12 2005-01-06 Calsonic Compressor Seizo Kk 気体圧縮機
CN203476712U (zh) * 2013-08-16 2014-03-12 中磁科技股份有限公司 滑阀真空泵油雾阱装置
CN203614417U (zh) * 2013-10-28 2014-05-28 中电电气(上海)太阳能科技有限公司 一种油气分离装置
CN105715551A (zh) * 2016-04-15 2016-06-29 珠海格力电器股份有限公司 油分离器及其油分桶
CN106870372A (zh) * 2017-03-23 2017-06-20 珠海格力电器股份有限公司 油分桶、螺杆压缩机及空调机组

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CN106870372B (zh) 2019-01-01

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