CN101713410B - Combined type energy regulating mechanism for screw compressor - Google Patents
Combined type energy regulating mechanism for screw compressor Download PDFInfo
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- CN101713410B CN101713410B CN2009102190353A CN200910219035A CN101713410B CN 101713410 B CN101713410 B CN 101713410B CN 2009102190353 A CN2009102190353 A CN 2009102190353A CN 200910219035 A CN200910219035 A CN 200910219035A CN 101713410 B CN101713410 B CN 101713410B
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- oil
- guiding valve
- interior volume
- specific ratio
- volume specific
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Abstract
The invention provides a combined type energy regulating mechanism for a screw compressor. The combined energy regulating mechanism for the screw compressor comprises an engine body, an exhaust end seat and an oil pressure cylinder body, wherein the inside of the oil pressure cylinder body is provided with a middle slide block oil piston and an energy regulating slide valve oil piston which divide the oil pressure cylinder body into three closed oil cavities, and the three oil cavities are provided with oil flow orifices respectively; the inside of the engine body is provided with a middle slide block and an internal volume-ratio slide valve; the inside of the exhaust end seat is provided with an energy regulating slide valve; an energy regulating slide valve bushing is connected with the energy regulating slide valve oil piston and the energy regulating slide valve respectively, and the inside of the energy regulating slide valve bushing is further provided with a middle slide block regulating rod; the middle slide block regulating rod is connected with the middle slide block oil piston and the middle slide block respectively; the energy regulating slide valve bushing is further provided with a groove gap; and the internal volume-ratio slide valve is further in threaded connection with an internal volume-ratio slide valve regulating rod. The combined type energy regulating mechanism for the screw compressor can improve partial load characteristic of the screw compressor with adjustable internal volume ratio, reduce additional air suction lost work, avoid additional exhausting lost work and improve the efficiency and reliability of a unit.
Description
Technical field
The present invention relates to a kind of capacity controlling gear, be specifically related to a kind of combined type energy regulating mechanism for screw compressor.
Background technique
Usually, in refrigeration and air conditioning condition, the helical-lobe compressor user always selectes the volume flow of compressor according to the operating mode of gas consumption maximum.Yet in use, because the equal a variety of causes of extraneous climatic conditions change, the change of using the gas object, application, if compressor moves under maximum air demand condition all the time, will cause air feed excessively more than needed, so that unnecessary power consumpiton, the pressure outside of helical-lobe compressor can change in a bigger scope than also simultaneously, so that causes under-voltage contracting or overcompression in various degree, cause additional exhaust power consumption, reduce the operational efficiency of compressor.Capacity controlling gear is exactly volume flow and the interior volume specific ratio that changes helical-lobe compressor by the position of effective active length that changes screw rotor and rod radial air vent mouth, to adapt to actual operating conditions, saves energy consumption.Present capacity controlling gear is made up of energy adjustment guiding valve and interior volume specific ratio guiding valve two-part, the position of rod radial air vent mouth is determined than operating mode according to minimum contents is long-pending on guiding valve length and the guiding valve, and guiding valve length is changeless, when carrying out the interior volume specific ratio adjusting, the length that the interior volume specific ratio guiding valve enters in the rotor length scope increases, thereby the air-breathing precompression power under the sub load is increased, and can produce under-voltage largely contracting under the sub load, cause additional exhaust power loss.Therefore, be necessary to design a kind of novel capacity controlling gear, improve content than adjusting screw compressor section part throttle characteristics.
Summary of the invention
The object of the present invention is to provide a kind of reliablely, easy to operate, can improve content, improve compressor operating efficient, the combined type energy regulating mechanism for screw compressor of the power loss that reduces to add than adjusting screw compressor section part throttle characteristics.
For achieving the above object, the technical solution used in the present invention is: the exhausting end base and the oil-hydraulic cylinder that comprise body and be separately positioned on the body both sides, on exhausting end base and oil-hydraulic cylinder, also be respectively arranged with the exhaust end cap and the oil pressure cylinder cap that seal, be provided with intermediate slider oil piston and energy adjustment guiding valve oil piston in the said oil-hydraulic cylinder, intermediate slider oil piston and energy adjustment guiding valve oil piston are divided into i.e. first oil pocket of three airtight oil pockets with oil-hydraulic cylinder, second oil pocket and the 3rd oil pocket, and at the first oil pocket low order end, the second oil pocket low order end, the 3rd oil pocket high order end offers the first oil through mouth respectively, the second oil through mouth and the 3rd oil through mouth, in body, be provided with intermediate slider and interior volume specific ratio guiding valve that mutual applying constitutes " fixed block ", in exhausting end base, be provided with the energy adjustment guiding valve, an end linked to each other with energy adjustment guiding valve oil piston after the energy adjustment slide valve thimble passed interior volume specific ratio guiding valve and intermediate slider, the other end links to each other with the energy adjustment guiding valve, and in the energy adjustment slide valve thimble, also be provided with the intermediate slider adjustable lever, one end of intermediate slider adjustable lever links to each other with intermediate slider oil piston, the other end links to each other with intermediate slider by straight pin, and on the energy adjustment slide valve thimble between interior volume specific ratio guiding valve and the energy adjustment guiding valve, also offer the groove breach that adapts with straight pin, said interior volume specific ratio guiding valve also with pass the exhaust end cap, exhausting end base, the interior volume specific ratio guiding valve adjustable lever of energy adjustment guiding valve and intermediate slider is threaded.
The outside of exhaust end cap of the present invention also is provided with attaching nut and the acorn nut that is connected with interior volume specific ratio guiding valve adjustable lever; The right-hand member of interior volume specific ratio guiding valve adjustable lever plays the baffle plate of position-limiting action when also being provided with the interior volume specific ratio guiding valve being moved right.
The present invention compares with prior art, following advantage is arranged: when the helical-lobe compressor that the interior volume specific ratio segmentation is adjustable moves under less interior volume specific ratio, intermediate slider and interior volume specific ratio guiding valve are fitted and are formed " fixed block " jointly, by the mobile realization capacity regulating of energy adjustment guiding valve; When helical-lobe compressor moves under higher interior volume specific ratio, the length that the interior volume specific ratio guiding valve enters in the rotor length scope increases, intermediate slider and energy adjustment guiding valve are fitted and are constituted " combination type sliding valve " simultaneously, the mobile capacity regulating that can finish under the higher interior volume specific ratio of " combination type sliding valve ".The existence of " combination type sliding valve ", when helical-lobe compressor is moved under higher interior volume specific ratio partial load condition, compared with prior art, be equivalent to reduce the interior volume specific ratio guiding valve and entered the interior length of rotor length scope, reduced the additional air-breathing power consumption that air-breathing precompression causes, and be equivalent to strengthen the length of energy adjustment guiding valve, the position of rod radial air vent mouth is delayed, can avoid the under-voltage additional exhaust power consumption that contracts and cause, save energy consumption, improve the operational efficiency of compressor, and this mechanism is reliable, easy to operate.
Description of drawings
Fig. 1 is an overall structure schematic representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
With reference to Fig. 1, a kind of combined type energy regulating mechanism for screw compressor of the present invention is achieved in that realizes that the mechanism that tolerance is regulated comprises oil pressure cylinder cap 15, oil-hydraulic cylinder 20, and oil-hydraulic cylinder 20 is connected with intermediate slider oil piston 13, energy adjustment guiding valve oil piston 11, body 21.Intermediate slider oil piston 13 is connected with intermediate slider adjustable lever 9, and intermediate slider adjustable lever 9 passes from interior volume specific ratio guiding valve 8, is connected with intermediate slider 6 by straight pin 7; Energy adjustment guiding valve oil piston 11 connects energy adjustment slide valve thimble 5, energy adjustment slide valve thimble 5 passes interior volume specific ratio guiding valve 8 and intermediate slider 6, be connected by screw with energy adjustment guiding valve 4, when relative movement takes place with intermediate slider 6 in energy adjustment guiding valve 4, energy adjustment slide valve thimble 5 can offer the groove breach 22 that runs through fully with the part that intermediate slider 6 overlaps, to guarantee that intermediate slider 6 is connected with the pin of intermediate slider adjustable lever 9; Intermediate slider oil piston 13 is all oil pocket with three spaces that energy adjustment guiding valve oil piston 11 is divided in the oil-hydraulic cylinder 20, and first oil pocket, 16 low order ends, second oil pocket, 17 low order ends, the 3rd oil pocket 18 high order ends offer the first oil through mouth 14, the second oil through mouth 12 and the 3rd oil through mouth 10 respectively.The adjusting of interior volume specific ratio is finished by interior volume specific ratio guiding valve 8, interior volume specific ratio guiding valve 8 is threaded with interior volume specific ratio guiding valve adjustable lever 3, and interior volume specific ratio guiding valve adjustable lever 3 passes intermediate slider 6, energy adjustment guiding valve 4, exhausting end base 23 and exhaust end cap 24 and links to each other with acorn nut 1 with attaching nut 2.
Helical-lobe compressor moves under less interior volume specific ratio, intermediate slider 6 is fitted with interior volume specific ratio guiding valve 8 and is formed " fixed block ", the first oil through mouth 14 is closed, during loading, the 3rd oil through mouth 10 fuel feeding, the second oil through mouth 12 is fuel-displaced, and energy adjustment guiding valve 4 moves to " fixed block " direction, and effective active length of rotor increases; During off-load, the 3rd oil through mouth 10 is fuel-displaced, the second oil through mouth, 12 fuel feeding, and energy adjustment guiding valve 4 moves to " fixed block " opposite direction, and effective active length of rotor reduces.
Interior volume specific ratio guiding valve adjustable lever 3 is threaded with interior volume specific ratio guiding valve 8, and interior volume specific ratio guiding valve adjustable lever 3 is carried out axially locating, makes it that axial float can't take place.Rotation interior volume specific ratio guiding valve adjustable lever 3 just can make interior volume specific ratio guiding valve 8 move axially, thereby realizes the adjusting of interior volume specific ratio, and also is provided with the baffle plate 19 that plays position-limiting action when interior volume specific ratio guiding valve 8 moved right at the right-hand member of interior volume specific ratio guiding valve adjustable lever 3.
Helical-lobe compressor moves under higher interior volume specific ratio, intermediate slider 6 is fitted with energy adjustment guiding valve 4 and is formed " combination type sliding valve ", the second oil through mouth 12 is closed, during loading, the 3rd oil through mouth 10 fuel feeding, the first oil through mouth 14 is fuel-displaced, and " combination type sliding valve " moves than guiding valve 8 directions to content, and effective active length of rotor increases; During off-load, the 3rd oil through mouth 10 is fuel-displaced, the first oil through mouth, 14 fuel feeding, and " combination type sliding valve " moves than guiding valve 8 opposite directions to content, and effective active length of rotor reduces.
Claims (3)
1. combined type energy regulating mechanism for screw compressor, the exhausting end base (23) and the oil-hydraulic cylinder (20) that comprise body (21) and be separately positioned on body (21) both sides, on exhausting end base (23) and oil-hydraulic cylinder (20), also be respectively arranged with the exhaust end cap (24) and the oil pressure cylinder cap (15) that seal, be provided with intermediate slider oil piston (13) and energy adjustment guiding valve oil piston (11) in the oil-hydraulic cylinder (20), intermediate slider oil piston (13) and energy adjustment guiding valve oil piston (11) are divided into i.e. first oil pocket (16) of three airtight oil pockets with oil-hydraulic cylinder (20), second oil pocket (17) and the 3rd oil pocket (18), it is characterized in that: said first oil pocket (16) low order end, second oil pocket (17) low order end, the 3rd oil pocket (18) high order end offers the first oil through mouth (14) respectively, the second oil through mouth (12) and the 3rd oil through mouth (10), in body (21), be provided with intermediate slider (6) and interior volume specific ratio guiding valve (8) that mutual applying constitutes " fixed block ", in exhausting end base (23), be provided with energy adjustment guiding valve (4), energy adjustment slide valve thimble (5) passes interior volume specific ratio guiding valve (8) and links to each other with energy adjustment guiding valve oil piston (11) with intermediate slider (6) back one end, the other end links to each other with energy adjustment guiding valve (4), and in energy adjustment slide valve thimble (5), also be provided with intermediate slider adjustable lever (9), one end of intermediate slider adjustable lever (9) links to each other with intermediate slider oil piston (13), the other end links to each other with intermediate slider (6) by straight pin (7), and on the energy adjustment slide valve thimble (5) between interior volume specific ratio guiding valve (8) and the energy adjustment guiding valve (4), also offer the groove breach (22) that adapts with straight pin (7), said interior volume specific ratio guiding valve (8) also with pass exhaust end cap (24), exhausting end base (23), the interior volume specific ratio guiding valve adjustable lever (3) of energy adjustment guiding valve (4) and intermediate slider (6) is threaded.
2. combined type energy regulating mechanism for screw compressor according to claim 1 is characterized in that: the outside of said exhaust end cap (24) also is provided with attaching nut (2) and the acorn nut (1) that is connected with interior volume specific ratio guiding valve adjustable lever (3).
3. combined type energy regulating mechanism for screw compressor according to claim 1 is characterized in that: the right-hand member at said interior volume specific ratio guiding valve adjustable lever (3) also is provided with the baffle plate (19) that interior volume specific ratio guiding valve (8) is played position-limiting action when moving right.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102190353A CN101713410B (en) | 2009-11-18 | 2009-11-18 | Combined type energy regulating mechanism for screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102190353A CN101713410B (en) | 2009-11-18 | 2009-11-18 | Combined type energy regulating mechanism for screw compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101713410A CN101713410A (en) | 2010-05-26 |
| CN101713410B true CN101713410B (en) | 2011-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102190353A Expired - Fee Related CN101713410B (en) | 2009-11-18 | 2009-11-18 | Combined type energy regulating mechanism for screw compressor |
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| CN (1) | CN101713410B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104495A (en) * | 2012-11-15 | 2013-05-15 | 福建雪人压缩机科技有限公司 | Refrigeration screw compressor adjustable device with built-in safety bypass valve |
| CN104421157B (en) * | 2013-08-27 | 2016-12-28 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and slide valve gear thereof |
| CN108035877A (en) * | 2018-01-15 | 2018-05-15 | 福建雪人股份有限公司 | A kind of helical-lobe compressor internal volume rate regulating mechanism |
| CN110821829B (en) * | 2019-09-23 | 2023-11-14 | 神钢无锡压缩机股份有限公司 | Screw compressor slide valve design method |
| WO2023248450A1 (en) * | 2022-06-24 | 2023-12-28 | 三菱電機株式会社 | Screw compressor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2556393Y (en) * | 2002-05-15 | 2003-06-18 | 烟台冰轮股份有限公司 | Energy-regulating mechanism of helical-lobe compressor |
| CN2763581Y (en) * | 2004-12-30 | 2006-03-08 | 武汉凯龙技术开发有限责任公司 | Screw compressor capable of reducing air displacement and keeping unchanged inner volume ratio |
| CN201071810Y (en) * | 2007-07-26 | 2008-06-11 | 武汉新世界制冷工业有限公司 | Energy and internal volume rate regulating mechanism of screw compressor |
| CN201273282Y (en) * | 2008-09-25 | 2009-07-15 | 珠海格力电器股份有限公司 | Screw compressor with adjustable internal volume ratio |
-
2009
- 2009-11-18 CN CN2009102190353A patent/CN101713410B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2556393Y (en) * | 2002-05-15 | 2003-06-18 | 烟台冰轮股份有限公司 | Energy-regulating mechanism of helical-lobe compressor |
| CN2763581Y (en) * | 2004-12-30 | 2006-03-08 | 武汉凯龙技术开发有限责任公司 | Screw compressor capable of reducing air displacement and keeping unchanged inner volume ratio |
| CN201071810Y (en) * | 2007-07-26 | 2008-06-11 | 武汉新世界制冷工业有限公司 | Energy and internal volume rate regulating mechanism of screw compressor |
| CN201273282Y (en) * | 2008-09-25 | 2009-07-15 | 珠海格力电器股份有限公司 | Screw compressor with adjustable internal volume ratio |
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| Publication number | Publication date |
|---|---|
| CN101713410A (en) | 2010-05-26 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SUZHOU HALADANE NEW ENERGY CO., LTD. Free format text: FORMER OWNER: XI'AN JIAOTONG UNIVERSITY Effective date: 20121217 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 710049 XI'AN, SHAANXI PROVINCE TO: 215124 SUZHOU, JIANGSU PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20121217 Address after: 215124, Suzhou, Jiangsu province Suzhou Industrial Park, the only Town Pavilion Road, No. 18 building, D107-2 Patentee after: Suzhou Haladane New Energy Co., Ltd. Address before: 710049 Xianning Road, Shaanxi, China, No. 28, No. Patentee before: Xi'an Jiaotong University |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20161118 |