EP3080457A1 - Verdichter - Google Patents
VerdichterInfo
- Publication number
- EP3080457A1 EP3080457A1 EP14824368.6A EP14824368A EP3080457A1 EP 3080457 A1 EP3080457 A1 EP 3080457A1 EP 14824368 A EP14824368 A EP 14824368A EP 3080457 A1 EP3080457 A1 EP 3080457A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- compressor
- slide
- axial direction
- rod
- slider
- 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
Links
- 230000006835 compression Effects 0.000 claims abstract description 10
- 238000007906 compression Methods 0.000 claims abstract description 10
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000001276 controlling effect Effects 0.000 claims 1
- 230000002349 favourable effect Effects 0.000 description 4
- 238000005056 compaction Methods 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
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
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/10—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
- F04C28/12—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves
- F04C28/125—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves with sliding valves controlled by the use of fluid other than the working fluid
-
- 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
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
-
- 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
- F04C2210/00—Fluid
- F04C2210/26—Refrigerants with particular properties, e.g. HFC-134a
-
- 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
- F04C2240/20—Rotors
-
- 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
- F04C2240/40—Electric motor
-
- 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
- F04C2240/80—Other components
- F04C2240/811—Actuator for control, e.g. pneumatic, hydraulic, electric
Definitions
- the present invention relates to a screw compressor according to the preamble of patent claim 1.
- Screw compressors are used in many applications because their construction is robust and the achievable efficiency is great.
- variable speed screw compressors i. Screw compressor, the two interlocking
- Screw rotor for compressing a medium to be compressed, preferably
- Refrigerant whose speed is controlled, and screw compressors having a fixed speed.
- a variable-speed screw compressor with a slide for regulating a so-called internal volume ratio (also called Vi) is known from DE 199 16 983 AI.
- the inner volume ratio is the ratio of gullet volumes of the intermeshing screw rotors at the beginning and end of the compaction.
- Vi-slider With the help of the so-called Vi-slider, the internal volume ratio of the compressor is influenced.
- Speed-controlled semi-hermetic compact screw compressors with a Vi slide for the stepped regulation of the internal volume ratio are known from DE 10 2011 051 730 AI. In the latter compressors, the Vi slide is positionable in one of two possible positions, wherein in one of the positions of the inner
- Volume ratio is greater than in the other of the positions.
- compressors according to DE 10 2011 051 730 A1 are not optimally adaptable to any operating conditions. Thus, an energetically favorable compressor operation is limited. Furthermore, slide movement errors can occur, which can cause an energetically unfavorable operation, as well as an increased susceptibility to interference.
- Screw compressor which has at least one screw rotor, which is arranged rotatably about a rotational axis arranged in the axial direction.
- the at least one screw rotor is arranged in a compression space, which is at least partially fluid-tight against the environment and opens into a high-pressure volume (26).
- the compressor further comprises a Vi-slider for influencing a
- the Vi-slider at least partially forms a portion of the fluid-tight boundary of the compression space and is arranged positionally displaceable in the axial direction.
- the Vi-slide is infinitely displaceable and the compressor has a device for detecting the slide position of the Vi-slide.
- Fig. 1 is a view of an exemplary embodiment of a compressor according to the invention.
- Fig. 2 is an enlarged view of a portion of Fig.l.
- a possible embodiment of a compressor according to the invention more specifically a screw compressor 10 according to the invention, which is also referred to below as a compressor 10, shown.
- the compressor 10 has a housing 12 and an electric motor 14 arranged in the housing 12. Furthermore, the compressor 10 has a drive shaft 16 and a compression device 18 with a first and a second intermeshing screw rotor 20 and 22.
- the screw rotors 20, 22 are via the drive shaft 16 directly (in alternative
- Embodiments indirectly, for example via a gear arrangement) rotationally driven.
- a compressor according to the invention can also have only one screw traveler or even three or more screw travelers.
- the first screw rotor 20 is arranged around a first, in the axial direction
- Rotary axis arranged rotatably.
- the second screw rotor 22 is rotatably arranged about a second axis of rotation which extends parallel to the first axis of rotation. Both the first and the second screw rotor 20, 22 are in one
- Compaction space 24 is arranged, the at least against the environment
- the compressor 10 further comprises a Vi-slide 28, which forms with boundary surfaces 30 at least partially a portion of the fluid-tight boundary of the compression space 24.
- the Vi slider 28 is positionally displaceable in the axial direction
- the compressor 10 also has a device 32 for detecting the slide position of the Vi slide, in particular the axial position of the Vi slide 28.
- the groove 38 has an increasing depth in the axial direction, so that a clear determination of the axial position of the Vi slide 28 is possible.
- the spring-loaded rod 34 is operatively engaged with a position sensor 41 at a second end 40, so that the position of the Vi-slider 28 can be detected.
- the compressor 10 further includes an adjustment device 42 for adjusting the position of the Vi slider 28.
- the Vi- slide 28 is hydraulically adjusted in position.
- the compressor 10 has a cylindrical recess or chamber 44, in which a connected to the Vi-slide 28 piston 46 is arranged axially displaceable.
- the piston 46 is sealed against a chamber wall 47 by means of a seal 48 and subdivides the chamber 44 into two sub-volumes, namely a first sub-volume 50 and a second sub-volume 52, which are separated from each other by the gasket 48 provided with the piston 46.
- the pressure in the first partial volume 50 can be increased and / or the pressure in the second partial volume 52 can be lowered, for example.
- the pressure in the first sub-volume 50 is reduced and / or increased in the second sub-volume 52.
- a first valve 54 and a second valve 56 are available, by means of which the first partial volume 50 and the second partial volume 52 are pressurized with hydraulic fluid or else can be correspondingly expanded.
- the two valves 54, 56 are formed in the presently described embodiment as solenoid valves, which in alternative embodiments beispile also electrically or electro-mechanically operated valves would be conceivable.
- the compressor 10 has in the described embodiment, a control device (not shown in the figures), by means of which in each case the optimal for the prevailing operating condition position of the Vi-slide 28 is adjusted.
- Embodiments the actuation of the Vi-slider 28 via a pneumatic device or a mechanical device, for example, with or against the bias of an elastic element.
- the compressor 10 in order to enable the optimum internal volume ratio Vi and thus an energetically favorable compressor operation at any operating conditions within the operating limits of the compressor 10, the compressor 10 is designed with a stepless Vi control, wherein the Vi slide 28 is infinitely adjustable and equipped with a slider position sensor.
- 2 shows an embodiment of a compressor 10 according to the invention.
- an oblique groove 38 is disposed in the Vi slider 28.
- a spring-loaded rod 34 abuts with a first end in the groove 28.
- a second end of the rod 34 is provided with a
- the Vi slider 28 can be hydraulically adjusted, for example.
- 10 solenoid valves 54, 56 for Vi-increase and Vi-reduce are arranged on the compressor.
- the respective valve 54, 56 is actuated by the controller (eg by a pulse / pause signal) until the required position of the Vi-slider 28 by the
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013020534.4A DE102013020534A1 (de) | 2013-12-12 | 2013-12-12 | Verdichter |
PCT/EP2014/003343 WO2015086159A1 (de) | 2013-12-12 | 2014-12-12 | Verdichter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3080457A1 true EP3080457A1 (de) | 2016-10-19 |
EP3080457B1 EP3080457B1 (de) | 2021-07-14 |
Family
ID=52292851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14824368.6A Revoked EP3080457B1 (de) | 2013-12-12 | 2014-12-12 | Verdichter |
Country Status (6)
Country | Link |
---|---|
US (1) | US20160319814A1 (de) |
EP (1) | EP3080457B1 (de) |
CN (1) | CN105793572A (de) |
DE (1) | DE102013020534A1 (de) |
DK (1) | DK3080457T3 (de) |
WO (1) | WO2015086159A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105626520B (zh) * | 2016-04-01 | 2017-07-28 | 福建雪人股份有限公司 | 一种可调节内容积比的半封闭式的螺杆压缩机 |
DE102020115442A1 (de) | 2020-06-10 | 2021-12-16 | Bitzer Kühlmaschinenbau Gmbh | Schraubenexpander und Anlage zur Gewinnung elektrischer Energie aus Wärme mit einem Schraubenexpander |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3422573A1 (de) * | 1982-09-10 | 1985-12-19 | Frick Co., Waynesboro, Pa. | Mikroprozessor-regelung des verdichtungsverhaeltnisses bei vollast in einem schrauben-rotationskompressor entsprechend dem antriebsmotorstrom |
US20050013702A1 (en) * | 2003-07-16 | 2005-01-20 | Bitzer Kuehlmaschinenbau Gmbh | Screw compressor |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1171291A (en) * | 1965-10-12 | 1969-11-19 | Svenska Rotor Maskiner Ab | Screw Rotor Machines |
DE2658928A1 (de) * | 1976-12-24 | 1978-07-06 | Beringer Hydraulik Gmbh | Hydraulische steuerung |
US4351160A (en) | 1980-06-16 | 1982-09-28 | Borg-Warner Corporation | Capacity control systems for screw compressor based water chillers |
US4388048A (en) * | 1981-03-10 | 1983-06-14 | Dunham Bush, Inc. | Stepping type unloading system for helical screw rotary compressor |
US4609329A (en) * | 1985-04-05 | 1986-09-02 | Frick Company | Micro-processor control of a movable slide stop and a movable slide valve in a helical screw rotary compressor with an enconomizer inlet port |
DD244386A1 (de) * | 1985-12-18 | 1987-04-01 | Kuehlautomat Veb | Vorrichtung zur positionsanzeige des regelschlittens an schraubenverdichtern |
DD286203A5 (de) * | 1989-07-14 | 1991-01-17 | Veb Kuehlautomat,De | Vorrichtung zur positionsanzeige des regelschlittens an schraubenverdichtern |
US5135374A (en) * | 1990-06-30 | 1992-08-04 | Kabushiki Kaisha Kobe Seiko Sho | Oil flooded screw compressor with thrust compensation control |
US5183395A (en) * | 1992-03-13 | 1993-02-02 | Vilter Manufacturing Corporation | Compressor slide valve control |
DE19521922A1 (de) * | 1995-06-09 | 1996-12-12 | Kuehlautomat Berlin Gmbh Kab | Leistungsregelung von Schraubenverdichtern |
EP0902188B1 (de) * | 1997-09-10 | 2003-05-28 | KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. | Spiralverdichter |
DE19916983A1 (de) | 1999-04-15 | 2000-10-19 | Grasso Gmbh Refrigeration Tech | Schraubenverdichter mit Drehzahlregelung |
US6659729B2 (en) | 2001-02-15 | 2003-12-09 | Mayekawa Mfg. Co., Ltd. | Screw compressor equipment for accommodating low compression ratio and pressure variation and the operation method thereof |
JP4147891B2 (ja) | 2002-10-16 | 2008-09-10 | ダイキン工業株式会社 | 可変vi式インバータスクリュー圧縮機 |
CN2667205Y (zh) * | 2003-12-19 | 2004-12-29 | 泰豪科技股份有限公司 | 螺杆压缩机输气量调节滑阀位置信号检测装置 |
CN101821479A (zh) * | 2007-10-10 | 2010-09-01 | 开利公司 | 螺杆压缩机的滑阀系统 |
US8287248B2 (en) * | 2008-12-24 | 2012-10-16 | Johnson Controls Technology Company | Compressor |
DE102011051730A1 (de) | 2011-07-11 | 2013-01-17 | Bitzer Kühlmaschinenbau Gmbh | Schraubenverdichter |
JP2013036403A (ja) * | 2011-08-09 | 2013-02-21 | Daikin Industries Ltd | スクリュー圧縮機 |
CN202381336U (zh) * | 2012-01-04 | 2012-08-15 | 河南科技大学 | 一种螺杆压缩机的滑阀位置反馈装置 |
CN102619756B (zh) * | 2012-04-20 | 2015-01-21 | 无锡职业技术学院 | 一种双螺杆压缩机滑阀位置指示装置 |
JP6006531B2 (ja) * | 2012-05-22 | 2016-10-12 | 株式会社神戸製鋼所 | スクリュ圧縮装置 |
-
2013
- 2013-12-12 DE DE102013020534.4A patent/DE102013020534A1/de active Pending
-
2014
- 2014-12-12 EP EP14824368.6A patent/EP3080457B1/de not_active Revoked
- 2014-12-12 US US15/102,351 patent/US20160319814A1/en not_active Abandoned
- 2014-12-12 DK DK14824368.6T patent/DK3080457T3/da active
- 2014-12-12 CN CN201480066255.6A patent/CN105793572A/zh active Pending
- 2014-12-12 WO PCT/EP2014/003343 patent/WO2015086159A1/de active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3422573A1 (de) * | 1982-09-10 | 1985-12-19 | Frick Co., Waynesboro, Pa. | Mikroprozessor-regelung des verdichtungsverhaeltnisses bei vollast in einem schrauben-rotationskompressor entsprechend dem antriebsmotorstrom |
US20050013702A1 (en) * | 2003-07-16 | 2005-01-20 | Bitzer Kuehlmaschinenbau Gmbh | Screw compressor |
Non-Patent Citations (1)
Title |
---|
See also references of WO2015086159A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2015086159A1 (de) | 2015-06-18 |
EP3080457B1 (de) | 2021-07-14 |
DE102013020534A1 (de) | 2015-06-18 |
US20160319814A1 (en) | 2016-11-03 |
DK3080457T3 (da) | 2021-10-18 |
CN105793572A (zh) | 2016-07-20 |
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