CN103527485A - Slide valve for screw compressor and screw compressor comprising same - Google Patents
Slide valve for screw compressor and screw compressor comprising same Download PDFInfo
- Publication number
- CN103527485A CN103527485A CN201210226386.9A CN201210226386A CN103527485A CN 103527485 A CN103527485 A CN 103527485A CN 201210226386 A CN201210226386 A CN 201210226386A CN 103527485 A CN103527485 A CN 103527485A
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- guiding valve
- flank
- valve
- slide valve
- screw compressor
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- 238000000034 method Methods 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000008093 supporting effect Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The invention provides a slide valve for a screw compressor and the screw compressor comprising the same, wherein the slide valve for the screw compressor comprises a slide valve body, and a connecting rod seat and a slide valve tail wing which are respectively arranged at two ends of the slide valve body along the axial direction, and a first slide valve side wing and a second slide valve side wing are respectively arranged at two sides of the slide valve body along the axial direction. According to the invention, the first sliding valve flank and the second sliding valve flank are respectively arranged on the two sides of the sliding valve body along the axial direction, and during installation, the first sliding valve flank and the second sliding valve flank are respectively placed in the oppositely arranged flank sliding grooves in the sliding valve cavity to support the weight of the sliding valve. By adopting the structure, when the slide valve moves, the slide valve can not directly generate dry friction and abrasion with the curved surface of the slide valve cavity in the running process of the compressor through the supporting action of the first slide valve flank and the second slide valve flank, so that the abrasion conditions of the two sides of the slide valve are improved, and the maintenance risk of the compressor is reduced.
Description
Technical field
The present invention relates to Compressor Technology field, in particular to a kind of screw compressor guiding valve and comprise the helical-lobe compressor of this guiding valve.
Background technique
The most frequently used displacement regulating method of helical-lobe compressor is that an axial transportable guiding valve is set between two rotors.The movement of spool position can change the effective active length of screw rotor, thereby reaches the object that regulates displacement.Therefore, guiding valve is very crucial component in helical-lobe compressor.
Three kinds of types of upside, downside and both sides of two rotors of helical-lobe compressor in prior art, have been there are guiding valve to be arranged on.Wherein, the guiding valve that is arranged on upside after operation a period of time, tend to because and the friction between piston chamber, and make guiding valve both sides occur damage, this has a significant impact the service life of compressor.
Summary of the invention
The present invention aims to provide a kind of screw compressor guiding valve and comprises the helical-lobe compressor of this guiding valve, the guiding valve both sides that are positioned at rotor upside to solve in the prior art impaired technical problem that rubs.
To achieve these goals, according to an aspect of the present invention, a kind of screw compressor guiding valve is provided, the connecting rod base and the guiding valve empennage that comprise slide valve and be arranged at respectively the two ends vertically of slide valve, slide valve both sides are vertically respectively arranged with the first guiding valve flank and the second guiding valve flank.
Further, the bottom surface of the bottom surface of the first guiding valve flank and the second guiding valve flank is positioned at same level.
Further, the bottom surface of the bottom surface of the first guiding valve flank and the second guiding valve flank is all higher than the horizontal plane at the central axis place of slide valve.
Further, the bottom surface of the bottom surface of the first guiding valve flank and the second guiding valve flank is positioned at the horizontal plane at the central axis place of slide valve.
Further, the first guiding valve flank and the second guiding valve flank are symmetrical with respect to the corresponding vertical guide of central axis of slide valve.
Further, the top of slide valve is provided with the first keyway vertically.
Further, the first keyway has the extension that is positioned at connecting rod base top.
Further, extension extends to the end of one end away from slide valve of connecting rod base.
Further, the central axis of the first keyway and the central axis of slide valve are positioned on same vertical guide.
According to a further aspect in the invention, a kind of helical-lobe compressor is provided, there is body, two rotors that are provided with guiding valve in body and are engaged with each other, guiding valve is arranged on the piston chamber that is positioned at two rotor tops, guiding valve can be along the moving axially of two rotors, and guiding valve is above-mentioned screw compressor guiding valve, and the both sides of the inwall of piston chamber are respectively arranged with the flank chute matching with the first guiding valve flank and the second guiding valve flank.
Screw compressor guiding valve of the present invention and comprise the helical-lobe compressor of this guiding valve, by the first guiding valve flank and the second guiding valve flank are set respectively in slide valve both sides vertically, during installation, the first guiding valve flank and the second guiding valve flank are placed on respectively in the flank chute being oppositely arranged in piston chamber to support the weight of guiding valve.Adopt this structure, when guiding valve moves, by the supporting effect of the first guiding valve flank and the second guiding valve flank, guiding valve can be not directly and the fretting wear of piston chamber curved surface generation dryness in compressor operating process, and then improved the wear condition of guiding valve both sides, reduced the maintenance risk of compressor.
Accompanying drawing explanation
The Figure of description that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the main TV structure schematic diagram of screw compressor guiding valve of the present invention;
Fig. 2 shows the left TV structure schematic diagram of screw compressor guiding valve of the present invention;
Fig. 3 shows the right TV structure schematic diagram of screw compressor guiding valve of the present invention;
Fig. 4 shows the plan structure schematic diagram of screw compressor guiding valve of the present invention; And
Fig. 5 shows the structural representation of helical-lobe compressor of the present invention.
Embodiment
Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.
As Figure 1-Figure 4, screw compressor guiding valve of the present invention, the connecting rod base 3 and the guiding valve empennage 2 that comprise slide valve 1 and be arranged at respectively the two ends vertically of slide valve 1, be respectively arranged with the first guiding valve flank 11 and the second guiding valve flank 12 in slide valve 1 both sides vertically.As shown in Figure 1, the curve of the radial cross section of slide valve 1 is by the first circular arc 16, the second circular arc 14 and three-arc 15 successively closed being formed by connecting, the second circular arc 14 and three-arc 15 protrude towards the center of circle of the first circular arc 16, wherein, the corresponding curved surface of the first circular arc 16 forms end face and the bi-side of slide valve 1, the corresponding curved surface of the second circular arc 14 forms the first bottom surface of slide valve 1, and the corresponding curved surface of three-arc 15 forms the second bottom surface of slide valve 1.
The corresponding axis in the center of circle of the first circular arc 16 is the central axis of slide valve 1, preferably, the bottom surface of the bottom surface of the first guiding valve flank 11 and the second guiding valve flank 12 is positioned in same level, the bottom surface of the bottom surface of the first guiding valve flank 11 and the second guiding valve flank 12 can be all higher than the horizontal plane at the central axis place of slide valve 1, also can all be positioned at the horizontal plane at the central axis place of slide valve 1.More preferably, the first guiding valve flank 11 and the second guiding valve flank 12 are symmetrical with respect to the corresponding vertical guide of central axis of slide valve 1.
Screw compressor guiding valve of the present invention, during installation, is placed on respectively in the corresponding flank chute in piston chamber the first guiding valve flank 11 and the second guiding valve flank 12 to support the weight of guiding valve.Adopt this structure, when guiding valve moves, by the supporting effect of the first guiding valve flank 11 and the second guiding valve flank 12, guiding valve can be not directly and the fretting wear of piston chamber curved surface generation dryness in compressor operating process, and then improved the wear condition of guiding valve both sides, reduced the maintenance risk of compressor.
As shown in Figure 5, the present invention also provides a kind of helical-lobe compressor, this helical-lobe compressor has body 4, two rotors 41 that are provided with guiding valve in body 4 and are engaged with each other, guiding valve is arranged on the piston chamber that is positioned at two rotor 41 tops, and guiding valve can be along the moving axially of two rotors 41, wherein, guiding valve is above-mentioned screw compressor guiding valve, in the both sides of the inwall of piston chamber, is respectively arranged with the flank chute corresponding with the first guiding valve flank 11 and the second guiding valve flank 12.
Shown in Fig. 1 and Fig. 4, in order to locate further guiding valve, prevent guiding valve generation left and right deviation and play, the top of slide valve 1 is provided with the first keyway 13 vertically, on the roof of piston chamber, on the position corresponding with the first keyway 13, be provided with the second keyway, between the first keyway 13 and the second keyway, be provided with sliding valve key 5, insert in the first keyway 13 one end of this sliding valve key 5, the other end is fixed by screws in the second keyway, in the process being moved along the axial direction of two rotors 41 at guiding valve, between sliding valve key 5 and the first keyway 13, there is vertically relative sliding.Preferably, the first keyway 13 has the extension that is positioned at connecting rod base 3 tops.More preferably, extension extends to the end of one end away from slide valve 1 of connecting rod base 3.Further preferably, the central axis of the central axis of the first keyway 13 and slide valve 1 is positioned on same vertical guide.
Helical-lobe compressor of the present invention when mounted, is placed on respectively in the corresponding flank chute in piston chamber the first guiding valve flank 11 and the second guiding valve flank 12 to support the weight of guiding valve.The first keyway 13 is inserted in one end of sliding valve key 5, and the other end is fixed in the second keyway, and the first bottom surface of slide valve 1 and the upside setting of corresponding corresponding with its radian rotor 41 separately of the second bottom surface.Adopt this structure, when guiding valve moves, by the supporting effect of the first guiding valve flank 11 and the second guiding valve flank 12, guiding valve can be not directly and the fretting wear of piston chamber curved surface generation dryness in compressor operating process, the upper end of guiding valve is spacing by the cooperation of the first keyway 13, the second keyway and sliding valve key 5, guaranteed that left and right skew and play can not occur guiding valve, and then improved the wear condition of guiding valve both sides, reduced the maintenance risk of compressor.
From above description, can find out, screw compressor guiding valve of the present invention and comprise the helical-lobe compressor of this guiding valve, by the first guiding valve flank 11 and the second guiding valve flank 12 are set respectively in slide valve 1 both sides vertically, during installation, the first guiding valve flank 11 and the second guiding valve flank 12 are placed on respectively in the flank chute being oppositely arranged in piston chamber to support the weight of guiding valve.Adopt this structure, when guiding valve moves, by the supporting effect of the first guiding valve flank 11 and the second guiding valve flank 12, guiding valve can be not directly and the fretting wear of piston chamber curved surface generation dryness in compressor operating process, and then improved the wear condition of guiding valve both sides, reduced the maintenance risk of compressor.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a screw compressor guiding valve, the connecting rod base (3) and the guiding valve empennage (2) that comprise slide valve (1) and be arranged at respectively the two ends vertically of described slide valve (1), it is characterized in that, described slide valve (1) both sides are vertically respectively arranged with the first guiding valve flank (11) and the second guiding valve flank (12).
2. screw compressor guiding valve according to claim 1, is characterized in that, the bottom surface of the bottom surface of described the first guiding valve flank (11) and described the second guiding valve flank (12) is positioned at same level.
3. screw compressor guiding valve according to claim 2, is characterized in that, the bottom surface of the bottom surface of described the first guiding valve flank (11) and described the second guiding valve flank (12) is all higher than the horizontal plane at the central axis place of described slide valve (1).
4. screw compressor guiding valve according to claim 2, is characterized in that, the bottom surface of the bottom surface of described the first guiding valve flank (11) and described the second guiding valve flank (12) is positioned at the horizontal plane at the central axis place of described slide valve (1).
5. screw compressor guiding valve according to claim 2, is characterized in that, described the first guiding valve flank (11) is symmetrical with respect to the corresponding vertical guide of central axis of described slide valve (1) with described the second guiding valve flank (12).
6. screw compressor guiding valve according to claim 1, is characterized in that, the top of described slide valve (1) is provided with the first keyway (13) vertically.
7. screw compressor guiding valve according to claim 6, is characterized in that, described the first keyway (13) has the extension that is positioned at described connecting rod base (3) top.
8. screw compressor guiding valve according to claim 7, is characterized in that, described extension extends to the end of one end away from described slide valve (1) of described connecting rod base (3).
9. screw compressor guiding valve according to claim 6, is characterized in that, the central axis of the central axis of described the first keyway (13) and described slide valve (1) is positioned on same vertical guide.
10. a helical-lobe compressor, there is body (4), two rotors (41) that are provided with guiding valve in described body (4) and are engaged with each other, described guiding valve is arranged on the piston chamber that is positioned at two described rotors (41) top, described guiding valve can moving axially along two described rotor (41), it is characterized in that, described guiding valve is the screw compressor guiding valve described in any one in claim 1 to 9, and the both sides of the inwall of described piston chamber are respectively arranged with the flank chute matching with described the first guiding valve flank (11) and described the second guiding valve flank (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210226386.9A CN103527485A (en) | 2012-07-02 | 2012-07-02 | Slide valve for screw compressor and screw compressor comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210226386.9A CN103527485A (en) | 2012-07-02 | 2012-07-02 | Slide valve for screw compressor and screw compressor comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103527485A true CN103527485A (en) | 2014-01-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210226386.9A Pending CN103527485A (en) | 2012-07-02 | 2012-07-02 | Slide valve for screw compressor and screw compressor comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103527485A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106605069A (en) * | 2014-09-24 | 2017-04-26 | 三菱电机株式会社 | Screw compressor and refrigeration cycle device |
| CN108150417A (en) * | 2017-12-13 | 2018-06-12 | 西安交通大学 | A kind of compressor slide valve of accessible movement |
| CN109424546A (en) * | 2017-08-21 | 2019-03-05 | 珠海格力电器股份有限公司 | Slide valve positioning structure and screw compressor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5647696A (en) * | 1979-09-21 | 1981-04-30 | Hitachi Ltd | Screw compressor |
| JPS6258077A (en) * | 1985-09-06 | 1987-03-13 | Hitachi Ltd | Screw compressor |
| JPH0587071A (en) * | 1991-09-27 | 1993-04-06 | Hitachi Ltd | Screw compressor |
| JP2005030362A (en) * | 2003-07-11 | 2005-02-03 | Daikin Ind Ltd | Screw compressor |
| CN2826014Y (en) * | 2005-07-01 | 2006-10-11 | 上海汉钟机械有限公司 | Slide valve for adjusting capacity of screw type compressor and valve barrel thereof |
| CN101514702A (en) * | 2009-03-23 | 2009-08-26 | 上海汉钟精机股份有限公司 | Screw compressor |
| CN202628525U (en) * | 2012-07-02 | 2012-12-26 | 珠海格力电器股份有限公司 | Slide valve for screw compressor and screw compressor comprising same |
-
2012
- 2012-07-02 CN CN201210226386.9A patent/CN103527485A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5647696A (en) * | 1979-09-21 | 1981-04-30 | Hitachi Ltd | Screw compressor |
| JPS6258077A (en) * | 1985-09-06 | 1987-03-13 | Hitachi Ltd | Screw compressor |
| JPH0587071A (en) * | 1991-09-27 | 1993-04-06 | Hitachi Ltd | Screw compressor |
| JP2005030362A (en) * | 2003-07-11 | 2005-02-03 | Daikin Ind Ltd | Screw compressor |
| CN2826014Y (en) * | 2005-07-01 | 2006-10-11 | 上海汉钟机械有限公司 | Slide valve for adjusting capacity of screw type compressor and valve barrel thereof |
| CN101514702A (en) * | 2009-03-23 | 2009-08-26 | 上海汉钟精机股份有限公司 | Screw compressor |
| CN202628525U (en) * | 2012-07-02 | 2012-12-26 | 珠海格力电器股份有限公司 | Slide valve for screw compressor and screw compressor comprising same |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106605069A (en) * | 2014-09-24 | 2017-04-26 | 三菱电机株式会社 | Screw compressor and refrigeration cycle device |
| CN109424546A (en) * | 2017-08-21 | 2019-03-05 | 珠海格力电器股份有限公司 | Slide valve positioning structure and screw compressor |
| CN109424546B (en) * | 2017-08-21 | 2024-10-01 | 珠海格力电器股份有限公司 | Slide valve positioning structure and screw compressor |
| CN108150417A (en) * | 2017-12-13 | 2018-06-12 | 西安交通大学 | A kind of compressor slide valve of accessible movement |
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Application publication date: 20140122 |