EP3617516A1 - Schraubenverdichter, klimatisierungsvorrichtung und kühlvorrichtung - Google Patents

Schraubenverdichter, klimatisierungsvorrichtung und kühlvorrichtung Download PDF

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Publication number
EP3617516A1
EP3617516A1 EP17907068.5A EP17907068A EP3617516A1 EP 3617516 A1 EP3617516 A1 EP 3617516A1 EP 17907068 A EP17907068 A EP 17907068A EP 3617516 A1 EP3617516 A1 EP 3617516A1
Authority
EP
European Patent Office
Prior art keywords
gas
supplement
screw compressor
holes
channel
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
EP17907068.5A
Other languages
English (en)
French (fr)
Other versions
EP3617516A4 (de
EP3617516B1 (de
Inventor
Tianyi Zhang
Hua Liu
Baoge ZHANG
Rihua LI
Helong ZHANG
Yungong XU
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.)
Gree Electric Appliances Inc of Zhuhai
Gree Wuhan Electric Appliances Co Ltd
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Gree Wuhan Electric Appliances 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 Gree Electric Appliances Inc of Zhuhai, Gree Wuhan Electric Appliances Co Ltd filed Critical Gree Electric Appliances Inc of Zhuhai
Publication of EP3617516A4 publication Critical patent/EP3617516A4/de
Publication of EP3617516A1 publication Critical patent/EP3617516A1/de
Application granted granted Critical
Publication of EP3617516B1 publication Critical patent/EP3617516B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • 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
    • F04C29/06—Silencing
    • 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
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings
    • 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
    • F04C2250/00—Geometry
    • F04C2250/10—Geometry of the inlet or outlet
    • 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
    • F04C2250/00—Geometry
    • F04C2250/10—Geometry of the inlet or outlet
    • F04C2250/101—Geometry of the inlet or outlet of the inlet
    • 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
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise

Definitions

  • the present disclosure relates to the field of compressor technology, and particularly to a screw compressor, an air conditioning apparatus and a refrigeration apparatus including the screw compressor.
  • the screw compressor generally includes a body and a couple of parallel and mutual engaged female and male screws provided in the body.
  • a gas intake is provided in the body corresponding to one end of the female screw and one end of the male screw, and an exhaust port is provided in the body corresponding to the other end of the female screw and the other end of the male screw.
  • the screw compressor compresses the low-temperature and low-pressure gas entering from the gas intake of the body into high-temperature and high-pressure gas, and discharges the high-temperature and high-pressure gas from the exhaust port of the body through the rotation of the female and male screws in opposite directions to each other.
  • the body of the existing screw compressor is usually further provided with a gas-supplement channel for supplementing the gas into a compression chamber between the female and male screws in order to improve the compression efficiency of the screw compressor.
  • the existing gas-supplement channel can be divided into axial gas-supplement and radial gas-supplement channels according to the disposing mode.
  • the body 10' is provided with a gas-supplement channel, and the inner end of the gas-supplement channel is provided with an axial gas-supplement hole 201' configured to make the gas-supplement channel be communicated with the compression chamber between the female and male screws.
  • the number of the axial gas-supplement holes 201' is one, and meanwhile the hole diameter is relatively larger.
  • the screw compressor having the above-mentioned gas-supplement channel structure may cause a larger gas flow pulsation when the gas in the air-supplement channel enters the compression chamber between the female and male screws through the axial gas-supplement hole 201', resulting in a larger noise.
  • the present disclosure provides a screw compressor, an air conditioning apparatus and a refrigeration apparatus, to reduce the gas flow pulsation in the gas-supplement process.
  • the present disclosure provides a screw compressor including:
  • gas-supplement holes are disposed along an axial direction of the body.
  • a shape of cross section of each gas-supplement hole is any one of a circle, an ellipse, a round rectangle and a polygon.
  • a radial dimension of each of the gas-supplement holes is not greater than 6 mm, or the radial dimension of each of the gas-supplement holes is not less than 2 mm.
  • each gas-supplement hole is a circle, and each of the gas-supplement holes has a diameter of 5 mm.
  • the screw compressor further includes a male screw and a female screw disposed in the compression chamber; wherein at least a portion of the gas-supplement holes are arranged in a shape corresponding to a partial outer contour of the male screw.
  • At least three gas-supplement holes are arranged to form a first group; centers of the gas-supplement holes in the first group are arranged to form an arc which is concentric with the male screw.
  • a contour of the gas-supplement channel is determined by a position of the male screw and an exhaust channel of the screw compressor; and a distance from a center of each gas-supplement hole disposed in an outer layer to a contour of the gas-supplement channel is a fixed value.
  • the body further includes: end bearing seat, provided at an end of the housing; wherein at least a first part of a length section of the gas-supplement channel is disposed in the exhaust end bearing seat, and the gas-supplement holes are provided in the exhaust end bearing seat.
  • the present disclosure provides an air conditioning apparatus including the screw compressor above.
  • the present disclosure provides a refrigeration apparatus including the screw compressor above.
  • the gas-supplement channel thereof has a plurality of gas-supplement holes for communicating with the compression chamber, so that in the case that the space available on the body for disposing the gas-supplement holes is limited, each of the gas-supplement holes has a smaller hole diameter.
  • a larger number of gas-supplement holes with smaller hole diameters are more beneficial for reducing gas flow pulsation, thereby helping to reduce noise in the gas-supplement process.
  • the gas conditioning apparatus and the refrigeration apparatus provided by the present disclosure adopt the above-described screw compressor provided by the present disclosure, and can reduce the gas flow pulsation in the gas-supplement process, thereby helping to reduce the noise in the gas-supplement process.
  • the screw compressor includes a body 10.
  • the body 10 includes a housing, in which a compression chamber is provided, and a gas-supplement channel is provided in the body 10.
  • the gas-supplement channel has a plurality of gas-supplement holes 201 communicating with the compression chamber.
  • the gas-supplement hole 201 is an axial gas-supplement hole, that is, the gas-supplement hole 201 is parallel with the axis of the body 10, which is beneficial for processing.
  • the gas-supplement hole 201 may be arranged to be inclined relative to the axis of the body 10.
  • the number of the gas-supplement holes 201 of the gas-supplement channel for communicating with the compression chamber is multiple, so that in the case that the space available in the body 10 for disposing the gas-supplement holes 201 is limited, the hole diameter of each of the gas-supplement holes 201 is smaller.
  • the screw compressor further includes a couple of parallel and mutual engaged male and female screws, and a driving mechanism.
  • the driving mechanism is connected to the male screw and configured to drive the male screw to rotate, thereby driving the female screw engaged with the male screw to rotate.
  • One end of the body 10 is provided with a gas intake, and the other end of the body 10 is provided with an exhaust port.
  • the gas intake and the exhaust port are respectively located at two sides of the female and male screws.
  • the male screw and the female screw rotate in opposite directions with each other.
  • the gas enters the compression chamber between the female and male screws through the gas intake; and after being compressed, the gas is discharged from the exhaust port when the compression chamber is communicated with the exhaust port.
  • the gas in the gas-supplement channel passes through the gas-supplement channel, the gas volume passing through the gas-supplement channel is a fixed value, therefore a total gas volume passing through the plurality of gas-supplement holes 201 is a fixed value.
  • the hole diameter of each of the gas-supplement holes 201 is relatively smaller, and the gas flow pulsation generated by the gas passing through the gas-supplement holes 201 is smaller, thereby reducing the noise formed when the gas is supplemented into the compression chamber.
  • the screw compressor being a twin-screw compressor as an example.
  • the screw compressor provided by the present disclosure may also be other possible structures, and is not limited to the above-mentioned twin-screw compressor.
  • each of the gas-supplement holes 201 can be various regular shapes such as a circle, an ellipse, a round rectangle, a polygon and so on, and can also be other irregular shapes.
  • the shape of the gas-supplement hole 201 can be configured to be any shape desired or capable of achieving the corresponding purpose according to requirements.
  • a radial dimension of each of the gas-supplement holes 201 is not greater than 6 mm.
  • the radial dimension is the diameter of the hole.
  • Such setting defines the maximum dimension of the hole diameter of the gas-supplement hole 201, i.e., the hole diameter is limited within a range of not greater than 6 mm, which can better reduce the gas flow pulsation in the gas-supplement process, thereby enabling the noise to be lower.
  • each of the gas-supplement holes 201 is not less than 2 mm.
  • the radial dimension is the diameter of the hole.
  • the shape of the axial gas-supplement hole 201 is configured to be circular for easy processing, thereby reducing the processing cost. As shown in FIG. 3 , each of the gas-supplement holes 201 has a diameter of 5 mm.
  • a male screw 40 and a female screw are provided in the body 10, and a plurality of gas-supplement holes 201 are arranged in a shape corresponding to the tooth root of the male screw 40.
  • Such an arrangement can reduce the gas flow pulsation in the gas-supplement process, which helps to reduce the noise in the gas-supplement process.
  • the body 10 further includes an exhaust end bearing seat.
  • the exhaust end bearing seat is disposed at an end of the housing, and at least a portion of the length of the gas-supplement channel can be disposed in the exhaust end bearing seat of the body 10.
  • the body structure shown in FIGS. 2 and 3 is the exhaust end bearing seat.
  • a first part of the length section of the gas-supplement channel is disposed in the exhaust end bearing seat; a second part of the length section of the gas-supplement channel is disposed in the housing, and the gas-supplement holes 201 are disposed in the exhaust end bearing seat.
  • the gas supplemented into the compressor first enters into the second part of the length section the gas-supplement channel, which is located in the housing, then enters the first part of the length section of the gas-supplement channel, which is located in the exhaust end bearing seat, and then enters the compression chamber of the body through the gas-supplement hole 201.
  • the number of the gas-supplement holes 201 in the gas-supplement channel for communicating with the compression chamber is multiple, so that in the case that the space available in the body 10 for disposing the gas-supplement holes 201 is limited, each of the gas-supplement holes 201 has a smaller hole diameter.
  • the screw compressor provided by the present disclosure has a larger number of gas-supplement holes 201 with smaller hole diameter, which is more beneficial for reducing the gas flow pulsation, and helps to reduce the noise in the gas-supplement process.
  • At least two gas-supplement holes 201 are arranged to form a first group 31, and at least three gas-supplement holes 201 are arranged in the first group 31. Centers of all gas-supplement holes 201 in the first group 31 form an arc. The arc and the male screw 40 are concentric. An arc at the position indicated by 31 in FIG. 4 , is the arc formed by the centers of a plurality of gas-supplement holes 201 in the first group 31.
  • the contour B of the gas-supplement channel is determined by the position of the male screw 40 and the exhaust channel of the screw compressor, and a distance from the center of the gas-supplement hole 201 in the outer layer to the contour B of the gas-supplement channel is a fixed value.
  • the shape of the contour B is also fixed, that is, the shape of the contour B is also the cross-sectional shape of the original gas-supplement channel.
  • the present disclosure also provides an air conditioning apparatus including, in this embodiment, the screw compressor in the above-described embodiments of the present disclosure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
EP17907068.5A 2017-04-26 2017-12-28 Schraubenverdichter, klimatisierungsvorrichtung und kühlvorrichtung Active EP3617516B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710283983.8A CN106979160A (zh) 2017-04-26 2017-04-26 螺杆压缩机、空调装置及制冷装置
PCT/CN2017/119427 WO2018196427A1 (zh) 2017-04-26 2017-12-28 螺杆压缩机、空调装置及制冷装置

Publications (3)

Publication Number Publication Date
EP3617516A4 EP3617516A4 (de) 2020-03-04
EP3617516A1 true EP3617516A1 (de) 2020-03-04
EP3617516B1 EP3617516B1 (de) 2021-10-06

Family

ID=59341594

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17907068.5A Active EP3617516B1 (de) 2017-04-26 2017-12-28 Schraubenverdichter, klimatisierungsvorrichtung und kühlvorrichtung

Country Status (5)

Country Link
US (1) US20200049148A1 (de)
EP (1) EP3617516B1 (de)
CN (1) CN106979160A (de)
PH (1) PH12019502419A1 (de)
WO (1) WO2018196427A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106979160A (zh) * 2017-04-26 2017-07-25 珠海格力电器股份有限公司 螺杆压缩机、空调装置及制冷装置

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CN1007076B (zh) * 1987-02-27 1990-03-07 武汉冷冻机厂 一种喷油螺扦制冷压缩机的排气端座
NL8900694A (nl) * 1989-03-21 1990-10-16 Grass Air Holding Bv Schroefcompressor en werkwijze voor het bedrijven daarvan.
JPH06280598A (ja) * 1993-03-24 1994-10-04 Honda Motor Co Ltd 過給圧測定装置
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JP4140488B2 (ja) * 2003-09-09 2008-08-27 ダイキン工業株式会社 スクリュー圧縮機および冷凍装置
US20070092393A1 (en) * 2005-10-26 2007-04-26 General Electric Company Gas release port for oil-free screw compressor
JP4183021B1 (ja) * 2007-06-11 2008-11-19 ダイキン工業株式会社 圧縮機および冷凍装置
US8056543B2 (en) * 2009-04-24 2011-11-15 GM Global Technology Operations LLC Tuning device with combined backflow function
CN201836053U (zh) * 2010-04-26 2011-05-18 上海维尔泰克螺杆机械有限公司 一种螺杆压缩机
CN202851353U (zh) * 2012-09-06 2013-04-03 安徽东升机电有限责任公司 热泵型电动汽车空调压缩机
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CN204962009U (zh) * 2015-09-01 2016-01-13 奇瑞汽车股份有限公司 一种新型的汽车空调整流阀
CN105736377A (zh) * 2016-04-11 2016-07-06 珠海格力节能环保制冷技术研究中心有限公司 一种压缩机结构
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CN106979160A (zh) * 2017-04-26 2017-07-25 珠海格力电器股份有限公司 螺杆压缩机、空调装置及制冷装置
CN206889265U (zh) * 2017-04-26 2018-01-16 珠海格力电器股份有限公司 螺杆压缩机、空调装置及制冷装置

Also Published As

Publication number Publication date
US20200049148A1 (en) 2020-02-13
WO2018196427A1 (zh) 2018-11-01
CN106979160A (zh) 2017-07-25
PH12019502419A1 (en) 2020-07-06
EP3617516A4 (de) 2020-03-04
EP3617516B1 (de) 2021-10-06

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