CN102748286A - Screw compressor - Google Patents
Screw compressor Download PDFInfo
- Publication number
- CN102748286A CN102748286A CN2012102634089A CN201210263408A CN102748286A CN 102748286 A CN102748286 A CN 102748286A CN 2012102634089 A CN2012102634089 A CN 2012102634089A CN 201210263408 A CN201210263408 A CN 201210263408A CN 102748286 A CN102748286 A CN 102748286A
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- Prior art keywords
- helical
- lobe compressor
- screw rotor
- sensor
- host cavity
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Abstract
The invention provides a screw compressor (100), at least comprising a shell (10) and a motor (20), a driving screw rotor (30), a driven screw rotor (40) and an oil-gas separator (50) which are contained by the shell (10), wherein the driving screw rotor (30) and the driven screw rotor (40) are contained by a first containing cavity (101) and a second containing cavity (102) of the shell (10); the screw compressor (100) also comprises a bracket (40) for fixedly holding a sensor (202) and a sliding block (70); the sliding block is provided with a blind hole (701); a movable rod (702) is arranged in the blind hole (701); the movable rod (702) can movably extended into the sensor (202); by dint of an above-mentioned structure, reliability of the screw compressor is improved; and control performance of the screw compressor is improved.
Description
Technical field
The present invention relates to mechanical field, relate in particular to a kind of employed a kind of helical-lobe compressor in the chiller plant that is applied to.
Background technique
Compressor is absolutely necessary in refrigeration system.The compressor that is widely used at present mainly contains piston type, screw type, centrifugal etc.
Screw type refrigerating compressor all adopts initiatively screw rotor rotation of motor driving; And drive driven screw rotor through the active screw rotor; Screw rotor is divided into initiatively screw rotor and driven screw rotor, and it intermeshes through both, rotor outer ring and shell.When the working rotor of engagement to when rotation, rotor changes to the volume between teeth groove, thereby realizes suction, compression and the eliminating of gas, accomplishes continuous gas compression and circulates.
In the prior art, the Spiral Lobe Refrigeration Compressor that oil pump is arranged is to show the helical-lobe compressor slide position through potentiometer, and the slide position is relevant with the compressor horsepower size.Potentiometer is connected on the exigent mechanical structure, usually causes the phenomenon of potentiometer job insecurity.Therefore in the prior art, it is many that the slide position demonstration in the helical-lobe compressor exists fault, shortcomings such as unstable properties.
In view of this, be necessary helical-lobe compressor of the prior art is improved, to address the above problem.
Summary of the invention
The object of the present invention is to provide a kind of helical-lobe compressor; It can reduce the rate of fault of only using mechanical structure and potentiometer to show helical-lobe compressor slide position and refrigeration work consumption relation; Improve the helical-lobe compressor reliability, improve the control performance of helical-lobe compressor.
For realizing the foregoing invention purpose, the invention provides a kind of helical-lobe compressor, it comprises at least:
Housing and
By motor, active screw rotor, driven screw rotor, deaerator that housing is accommodated, said active screw rotor and driven screw rotor are accommodated by first host cavity of housing and second host cavity,
Said helical-lobe compressor also comprises,
Support, in order to fixing one sensor, and
Slide block, it is provided with a blind hole, and said blind hole inside is provided with a moving bar, and said moving bar is movable to extend into said sensor.
As further improvement of the present invention, said slide block is arranged in the 3rd host cavity at top of said first host cavity and second host cavity.
As further improvement of the present invention, said support is fixed on the housing.
As further improvement of the present invention, said slide block links to each other with the piston of said helical-lobe compressor through a connecting rod.
As further improvement of the present invention, said sensor is a displacement transducer.
Compared with prior art; The invention has the beneficial effects as follows: through at helical-lobe compressor set inside one slide block; And portion is provided with a blind hole within it, and at housing one support is set, displacement transducer of support fixing; And control the longitudinal sliding motion amplitude of slide block, thereby realize accurately showing the position of slide block in this helical-lobe compressor through displacement transducer.Through such structure, improved the helical-lobe compressor reliability, improve the control performance of helical-lobe compressor.
Description of drawings
Fig. 1 is the sectional view in a kind of helical-lobe compressor one embodiment of the present invention;
Fig. 2 is in order to accommodate the stereogram of slide block and active screw rotor, driven screw rotor in a kind of helical-lobe compressor shown in Fig. 1;
Fig. 3 is the stereogram of the control gear of the refrigeration work consumption in a kind of helical-lobe compressor of the present invention.
Embodiment
Below in conjunction with each mode of execution shown in the drawings the present invention is elaborated; But should be noted that; These mode of executions are not limitation of the present invention; The function that those of ordinary skills do according to these mode of executions, method, or structural equivalent transformation or substitute all belong within protection scope of the present invention.
Please join shown in Figure 1ly, Fig. 1 is the sectional view in a kind of helical-lobe compressor one embodiment of the present invention.In this mode of execution; A kind of helical-lobe compressor 100; It comprises at least: housing 10 and the motor 20 of being accommodated by housing 10, active screw rotor 30, driven screw rotor 40, deaerator 50, said active screw rotor 30 is accommodated by first host cavity 101 of housing 10 and second host cavity 102 with driven screw rotor 40.
In this mode of execution, this said helical-lobe compressor 100 also comprises support 40; In order to fixing one sensor 202, and slide block 70, it is provided with a blind hole 701; Said blind hole 701 inside are provided with a moving bar 702, and said moving bar 702 is movable to extend into said sensor 202.
This slide block 70 is arranged in the 3rd host cavity 104 at top of said first host cavity 101 and second host cavity 102.Two screws 401 that the bottom of said support 40 is provided with, and be fixed on the housing 10 through bolt (not shown).Slide block 70 links to each other with the piston 60 of said helical-lobe compressor 100 through a connecting rod 203.
Accomplish at helical-lobe compressor 100 in the whole process of suction, compression and eliminating of gas, slide block 70 can vertically move in the 3rd host cavity 104.
Therefore, the position of the slide block 70 that can show through sensor 202 relatively and the power of motor 20 judge whether the power of this helical-lobe compressor 100 is normal.In this mode of execution, this sensor 202 can be displacement transducer, can be the sensor that can shield electromagnetic induction of other types certainly.
The listed a series of detailed description of preceding text only is specifying to feasibility mode of execution of the present invention; They are not in order to restriction protection scope of the present invention, allly do not break away from equivalent mode of execution or the change that skill of the present invention spirit done and all should be included within protection scope of the present invention.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned example embodiment, and under the situation that does not deviate from spirit of the present invention or essential characteristic, can realize the present invention with other concrete form.Therefore; No matter from which point; All should regard embodiment as exemplary; And be nonrestrictive, scope of the present invention is limited accompanying claims rather than above-mentioned explanation, therefore is intended to the implication of the equivalents that drops on claim and all changes in the scope are included in the present invention.Should any reference character in the claim be regarded as limit related claim.
In addition; Describing according to mode of execution though should be appreciated that this specification, is not that each mode of execution only comprises an independently technological scheme; This narrating mode of specification only is for clarity sake; Those skilled in the art should make specification as a whole, and the technological scheme among each embodiment also can form other mode of executions that it will be appreciated by those skilled in the art that through appropriate combination.
Claims (5)
1. a helical-lobe compressor (100), it comprises at least:
Housing (10) and
The motor (20) of being accommodated by housing (10), initiatively screw rotor (30), driven screw rotor (40), deaerator (50); Said active screw rotor (30) is accommodated by first host cavity (101) of housing (10) and second host cavity (102) with driven screw rotor (40)
It is characterized in that said helical-lobe compressor (100) also comprises,
Support (40), in order to fixing one sensor (202), and
Slide block (70), it is provided with a blind hole (701), and said blind hole (701) inside is provided with a moving bar (702), the movable said sensor (202) that extends into of said moving bar (702).
2. helical-lobe compressor according to claim 1 (100) is characterized in that, said slide block (70) is arranged in the 3rd host cavity (104) at top of said first host cavity (101) and second host cavity (102).
3. helical-lobe compressor according to claim 1 (100) is characterized in that, said support (40) is fixed on the housing (10).
4. helical-lobe compressor according to claim 1 (100) is characterized in that, said slide block (70) links to each other with the piston (60) of said helical-lobe compressor (100) through a connecting rod (203).
5. helical-lobe compressor according to claim 1 (100) is characterized in that, said sensor (202) is a displacement transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102634089A CN102748286A (en) | 2012-04-11 | 2012-07-27 | Screw compressor |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210104749 | 2012-04-11 | ||
| CN201210104749.1 | 2012-04-11 | ||
| CN2012102634089A CN102748286A (en) | 2012-04-11 | 2012-07-27 | Screw compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102748286A true CN102748286A (en) | 2012-10-24 |
Family
ID=47028711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102634089A Pending CN102748286A (en) | 2012-04-11 | 2012-07-27 | Screw compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102748286A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107044412A (en) * | 2017-03-28 | 2017-08-15 | 四川凯创机电设备有限公司 | It is easily installed the screw rod of detection means in pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| GB2331574A (en) * | 1997-11-20 | 1999-05-26 | Gethin Bermingham | Sensing device for screw compressor valve |
| CN1576588A (en) * | 2003-07-16 | 2005-02-09 | 比泽尔制冷设备有限公司 | Screw compressor |
| CN101016902A (en) * | 2007-02-07 | 2007-08-15 | 烟台冰轮股份有限公司 | Energy indicator used in screw bolt refrigerant compressor |
| CN101761479A (en) * | 2008-12-24 | 2010-06-30 | 珠海格力电器股份有限公司 | Screw compressor with adjustable internal volume ratio |
| CN202718867U (en) * | 2012-04-11 | 2013-02-06 | 无锡市制冷设备厂有限责任公司 | Screw compressor |
-
2012
- 2012-07-27 CN CN2012102634089A patent/CN102748286A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| GB2331574A (en) * | 1997-11-20 | 1999-05-26 | Gethin Bermingham | Sensing device for screw compressor valve |
| CN1576588A (en) * | 2003-07-16 | 2005-02-09 | 比泽尔制冷设备有限公司 | Screw compressor |
| CN101016902A (en) * | 2007-02-07 | 2007-08-15 | 烟台冰轮股份有限公司 | Energy indicator used in screw bolt refrigerant compressor |
| CN101761479A (en) * | 2008-12-24 | 2010-06-30 | 珠海格力电器股份有限公司 | Screw compressor with adjustable internal volume ratio |
| CN202718867U (en) * | 2012-04-11 | 2013-02-06 | 无锡市制冷设备厂有限责任公司 | Screw compressor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107044412A (en) * | 2017-03-28 | 2017-08-15 | 四川凯创机电设备有限公司 | It is easily installed the screw rod of detection means in pump |
| CN107044412B (en) * | 2017-03-28 | 2019-03-05 | 四川凯创机电设备有限公司 | It is easily installed the screw rod of detection device in pumping |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121024 |