CN103486037B - Guiding valve, guiding valve governor motion, helical-lobe compressor and capacity regulation method thereof - Google Patents
Guiding valve, guiding valve governor motion, helical-lobe compressor and capacity regulation method thereof Download PDFInfo
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- CN103486037B CN103486037B CN201210193436.8A CN201210193436A CN103486037B CN 103486037 B CN103486037 B CN 103486037B CN 201210193436 A CN201210193436 A CN 201210193436A CN 103486037 B CN103486037 B CN 103486037B
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Abstract
The invention discloses a kind of guiding valve, guiding valve includes quiet guiding valve and movable pulley, quiet guiding valve has the second surface that the first surface with piston chamber surface engagement coordinates and the 3rd surface coordinated with male rotor with female rotor, this quiet guiding valve is provided with the through hole axially penetrated through, and axially disposed on a second surface have one or more the first by-pass prot connected with through hole, and/or axially disposed on the 3rd surface there is one or more the second by-pass prot connected with through hole；Movable pulley is axially moveably installed in the through hole of quiet guiding valve, is used for selectively opening and closing the first by-pass prot and/or the second by-pass prot.Guiding valve provided by the present invention, owing to quiet guiding valve is motionless, and movable pulley does not directly contact with compressor drum, thoroughly solves guiding valve and the abrasive phenomenon of rotor, thus improve the reliability of compressor.Meanwhile, the invention also discloses a kind of guiding valve governor motion with this guiding valve and helical-lobe compressor and screw compressor capacity control method.
Description
Technical field
The present invention relates to helical-lobe compressor, particularly relate to a kind of guiding valve, there is the guiding valve governor motion of this guiding valve, there is the helical-lobe compressor of this guiding valve governor motion and screw compressor capacity control method.
Background technology
Guiding valve is for regulating a kind of structural detail of displacement in helical-lobe compressor.As shown in Figure 1, guiding valve 100 is loaded in the piston chamber of body 400 and is positioned at the point of intersection of yin, yang rotor two circle, can with the direction of cylinder-bore axis equality on move back and forth, rotation along with yin, yang rotor, gradually stepped up along the direction of rotor by the pressure of compression gas, along with the housing of the slip of guiding valve, guiding valve and compressor separates, some gas will pass through opening part bypass and fall, thus reaching the purpose of capacity regulating.But; owing to guiding valve slides on compressor housing; rotor slides on guiding valve mating surface; such guiding valve just has relative motion with screw rod; the process of assembling and processing occurs the abnormal scratch that can cause guiding valve; so processing and assembling being proposed very big requirement, the reliability of compressor operating is substantially reduced.
Summary of the invention
For above-mentioned prior art present situation, first technical problem to be solved by this invention is in that, it is provided that one is avoided that abrasive guiding valve, to improve the reliability of helical-lobe compressor.
Second technical problem to be solved by this invention is in that, it is provided that a kind of guiding valve governor motion using above-mentioned guiding valve, to improve the reliability of guiding valve governor motion.
3rd technical problem to be solved by this invention is in that, it is provided that a kind of helical-lobe compressor using above-mentioned guiding valve governor motion.
4th technical problem to be solved by this invention is in that, it is provided that a kind of screw compressor capacity control method, it is avoided that scratch guiding valve, to improve the reliability of helical-lobe compressor.
This invention address that the technical scheme that above-mentioned first technical problem adopts is: a kind of guiding valve, it has suction end and exhaust end, described guiding valve includes quiet guiding valve and movable pulley, described quiet guiding valve has and the first surface of piston chamber surface engagement, the second surface coordinated with female rotor and the 3rd surface coordinated with male rotor, this quiet guiding valve is provided with the through hole axially penetrated through, and axially disposed the first by-pass prot having one or more and described through hole to connect on described second surface, and/or axially disposed the second by-pass prot having one or more and described through hole to connect on described 3rd surface；Described movable pulley is axially moveably installed in the through hole of described quiet guiding valve, is used for selectively opening and closing described first by-pass prot and/or described second by-pass prot.
Wherein in an embodiment, described first by-pass prot is the bar hole extended along the described female rotor hand of spiral；And/or described second by-pass prot is the bar hole extended along the described male rotor hand of spiral.
Wherein in an embodiment, from suction end to exhaust end, described first by-pass prot and/or the spacing between described second by-pass prot are gradually increased.
Wherein in an embodiment, from suction end to exhaust end, the width of described first by-pass prot and/or described second by-pass prot is gradually reduced.
Wherein in an embodiment, the through hole of described movable pulley and described quiet guiding valve is matched in clearance.
Wherein in an embodiment, described movable pulley includes the movable pulley main body and the connecting portion that are sequentially connected with from suction end to exhaust end, and described movable pulley main body coordinates with the through hole of described quiet guiding valve, and described connecting portion is provided with the sliding valve hole for being connected with slide valve lever.
Wherein in an embodiment, the through hole of described quiet guiding valve is circular, and the cross section of described movable pulley main body is circular, and the cross section of described connecting portion is rectangle.
This invention address that the technical scheme that above-mentioned second technical problem adopts is: a kind of guiding valve governor motion, including guiding valve, slide valve lever and oil piston, described slide valve lever one end is connected with described oil piston, and the other end is connected with described guiding valve, and described guiding valve is above-mentioned guiding valve.
This invention address that above-mentioned 3rd technical scheme that technical problem adopts is: a kind of helical-lobe compressor, it includes body, is provided with piston chamber on this body, also includes above-mentioned guiding valve governor motion, and described quiet guiding valve is fixedly mounted in described piston chamber.
This invention address that above-mentioned 4th technical scheme that technical problem adopts is: a kind of screw compressor capacity control method, described helical-lobe compressor includes piston chamber and guiding valve；Described method comprises the steps: described guiding valve is divided into quiet guiding valve and two parts of movable pulley, described quiet guiding valve is fixedly mounted in described piston chamber, the first surface of described quiet guiding valve and piston chamber surface engagement, second surface coordinates with female rotor, 3rd surface coordinates with male rotor, described quiet guiding valve arranges the through hole axially penetrated through, and the first by-pass prot that axially disposed one or more and described through hole connects on described second surface, and/or the second by-pass prot that axially disposed one or more and described through hole connects on described 3rd surface；Described movable pulley is loaded in the through hole of described quiet guiding valve, drives described movable pulley to move back and forth, to selectively open and close described first by-pass prot and/or described second by-pass prot.
Compared with prior art, guiding valve provided by the present invention, guiding valve governor motion and helical-lobe compressor, owing to guiding valve is made up of quiet guiding valve and movable pulley, quiet guiding valve offers through hole and the by-pass prot connected with through hole, movable pulley is axially moveably loaded in quiet guiding valve, optionally by-pass prot is opened and closed when movable pulley moves, so can regulate the capacity of compressor.Owing to quiet guiding valve is motionless, and movable pulley does not directly contact with compressor drum, thoroughly solves guiding valve and the abrasive phenomenon of rotor, thus improve the reliability of compressor.
Accompanying drawing explanation
Fig. 1 is the structural representation of guiding valve in prior art；
Fig. 2 is the structural representation of the guiding valve in one of them embodiment of the present invention；
Fig. 3 is the perspective view of the quiet guiding valve in Fig. 2；
Fig. 4 be the quiet guiding valve in Fig. 2 look up structural representation；
Fig. 5 is the perspective view of the movable pulley in Fig. 2；
Fig. 6 is the assembling schematic diagram of guiding valve shown in Fig. 2 and slide valve lever and oil piston；
Fig. 7 is the upward view of Fig. 6.
Above in each figure, 100-guiding valve, the quiet guiding valve of 110-, 111-first surface, 112-second surface, 112a-the first by-pass prot, 113-the 3rd surface, 113a-the second by-pass prot, 114-through hole, 120-movable pulley, 121-movable pulley main body, 122-connecting portion, 122a-sliding valve hole, 200-oil piston, 300-slide valve lever, 400-body.
Detailed description of the invention
Below with reference to the accompanying drawings and in conjunction with the embodiments the present invention is described in detail.It should be noted that when not conflicting, the feature in following embodiment and embodiment can be mutually combined.
In one of them embodiment of the present invention, it is provided that a kind of guiding valve, as in figure 2 it is shown, described guiding valve 100 includes quiet guiding valve 110 and movable pulley 120, quiet guiding valve 110 is stationary components, and quiet guiding valve 110 and compressor drum coordinate, and act the effect sealed；Movable pulley 120 is moving component, and movable pulley 120 can move reciprocatingly in quiet guiding valve 110.Owing to movable pulley 120 does not directly contact with compressor drum, thoroughly solve compressor capacity adjusting valve and the abrasive phenomenon of rotor, thus improving the reliability of compressor.Structure the following detailed description of quiet guiding valve 110 and movable pulley 120.
As shown in Figures 3 and 4, the quiet guiding valve 110 of the present embodiment has the second surface 112 that the first surface 111 with piston chamber surface engagement coordinates and the 3rd surface 113 coordinated with male rotor with female rotor, this quiet guiding valve 110 is provided with the through hole 114 axially penetrated through, and on described second surface 112 axially disposed the first by-pass prot 112a having multiple and described through hole 114 to connect, and on described 3rd surface 113 axially disposed the second by-pass prot 113a having one or more and described through hole 114 to connect.The gas that the male rotor of compressor and female rotor are compressed by the first by-pass prot 112a and the second by-pass prot 113a respectively plays bypass action, when oil piston promotes movable pulley 120 outward movment, first by-pass prot 112a and the second by-pass prot 113a will open, the compression gas of male rotor and female rotor returns to the suction muffler of compressor, the capacity of compressor will reduce, thus playing the effect of energy adjustment.Multiple first by-pass prot 112a and multiple second by-pass prot 113a can control compressor and realize compressor compresses gas in different position realization bypass at diverse location, thus realizing the function that compressor stepless regulates.
Preferably, described first by-pass prot 112a is the bar hole extended along the described female rotor hand of spiral；Described second by-pass prot 113a is the bar hole extended along the described male rotor hand of spiral.
Due to the rising of pressure during along with screw compression, pressure reduction between by-pass prot can be gradually increased, so can cause that the leakage rate of compressor is gradually increased, in order to ensure the Energy Efficiency Ratio of compressor operating, preferably, from suction end to exhaust end (namely in Fig. 4 from left end to right-hand member), the gap between the first by-pass prot 112a and the second by-pass prot 113a is gradually increased, and width is gradually reduced.
As shown in Figure 5, wherein in an embodiment, described movable pulley 120 includes the movable pulley main body 121 and the connecting portion 122 that are sequentially connected with from suction end to exhaust end, and described movable pulley main body 121 coordinates with the through hole 114 of described quiet guiding valve 110, and described connecting portion 122 is provided with described sliding valve hole 122a.Movable pulley main body 121 only less times greater than the length of all first by-pass prot 112a and all second by-pass prot 113a, so need to can alleviate the weight of guiding valve.Preferably, the through hole 114 of described quiet guiding valve 110 is circular hole, and the cross section of described movable pulley main body 121 is circular, and the cross section of described connecting portion 122 is rectangle.
In another embodiment, a kind of guiding valve governor motion is provided, as shown in FIG. 6 and 7, guiding valve governor motion includes the guiding valve 100 of above-described embodiment, slide valve lever 300 and oil piston 200, quiet guiding valve 110 is assemblied in the piston chamber of body 400, movable pulley 120 is loaded in quiet guiding valve 110, and its one end with slide valve lever 300 is threaded connection, and the other end of slide valve lever 300 is connected with described oily piston 200.Oil piston 200 is moved back and forth by slide valve lever 300 band movable pulley 100.
In another embodiment, it is provided that a kind of helical-lobe compressor, including the guiding valve governor motion described in body 400 and above-described embodiment.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, it is also possible to making some deformation and improvement, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (7)
- null1. a guiding valve，It has suction end and exhaust end，It is characterized in that，Described guiding valve includes quiet guiding valve and movable pulley，Described quiet guiding valve has and the first surface of piston chamber surface engagement、The second surface coordinated with female rotor and the 3rd surface coordinated with male rotor，This quiet guiding valve is provided with the through hole axially penetrated through，And from suction end to axially disposed the first by-pass prot having multiple and described through hole to connect of exhaust end on described second surface，And/or from suction end to axially disposed the second by-pass prot having multiple and described through hole to connect of exhaust end on described 3rd surface，Described first by-pass prot is the bar hole extended along the described female rotor hand of spiral，From suction end to exhaust end，Spacing between described first by-pass prot is gradually increased or the width of described first by-pass prot is gradually reduced，And/or described second by-pass prot is the bar hole extended along the described male rotor hand of spiral，From suction end to exhaust end，Spacing between described second by-pass prot is gradually increased or the width of described second by-pass prot is gradually reduced；Described movable pulley is axially moveably installed in the through hole of described quiet guiding valve, when described movable pulley is positioned at initial position, described movable pulley closes all described first by-pass prots and/or all described second by-pass prots, when described movable pulley moves from suction end to exhaust end, described movable pulley opens all described first by-pass prots and/or all described second by-pass prots successively.
- 2. guiding valve according to claim 1, it is characterised in that the through hole of described movable pulley and described quiet guiding valve is matched in clearance.
- 3. guiding valve according to claim 1 and 2, it is characterized in that, described movable pulley includes the movable pulley main body and the connecting portion that are sequentially connected with from suction end to exhaust end, and described movable pulley main body coordinates with the through hole of described quiet guiding valve, and described connecting portion is provided with the sliding valve hole for being connected with slide valve lever.
- 4. guiding valve according to claim 3, it is characterised in that the through hole of described quiet guiding valve is circular, the cross section of described movable pulley main body is circular, and the cross section of described connecting portion is rectangle.
- 5. a guiding valve governor motion, including guiding valve, slide valve lever and oil piston, described slide valve lever one end is connected with described oil piston, and the other end is connected with described guiding valve, it is characterised in that described guiding valve is the guiding valve in Claims 1-4 as described in any one.
- 6. a helical-lobe compressor, it includes body, is provided with piston chamber on this body, it is characterised in that also including guiding valve governor motion as claimed in claim 5, described quiet guiding valve is fixedly mounted in described piston chamber.
- null7. a screw compressor capacity control method，Described helical-lobe compressor includes piston chamber and guiding valve，It is characterized in that，Described method comprises the steps: described guiding valve is divided into quiet guiding valve and two parts of movable pulley，Described quiet guiding valve is fixedly mounted in described piston chamber，The first surface of described quiet guiding valve and piston chamber surface engagement，Second surface coordinates with female rotor，3rd surface coordinates with male rotor，Described quiet guiding valve arranges the through hole axially penetrated through，And the first by-pass prot that axially disposed multiple and described through hole connects on described second surface，And/or the second by-pass prot that axially disposed multiple and described through hole connects on described 3rd surface，Described first by-pass prot is the bar hole extended along the described female rotor hand of spiral，And/or described second by-pass prot is the bar hole extended along the described male rotor hand of spiral，From suction end to exhaust end，The spacing between spacing and/or described second by-pass prot between described first by-pass prot is gradually increased，And/or the width of described first by-pass prot and/or described second by-pass prot is gradually reduced；Described movable pulley is loaded in the through hole of described quiet guiding valve, described movable pulley is driven to move back and forth, when described movable pulley is positioned at initial position, described movable pulley closes all described first by-pass prots and/or all described second by-pass prots, when described movable pulley moves from suction end to exhaust end, described movable pulley opens described first by-pass prot and/or described second by-pass prot successively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210193436.8A CN103486037B (en) | 2012-06-12 | 2012-06-12 | Guiding valve, guiding valve governor motion, helical-lobe compressor and capacity regulation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210193436.8A CN103486037B (en) | 2012-06-12 | 2012-06-12 | Guiding valve, guiding valve governor motion, helical-lobe compressor and capacity regulation method thereof |
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| CN103486037A CN103486037A (en) | 2014-01-01 |
| CN103486037B true CN103486037B (en) | 2016-07-20 |
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| JP6385708B2 (en) * | 2014-04-18 | 2018-09-05 | 日立ジョンソンコントロールズ空調株式会社 | Screw compressor |
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| CN114484005B (en) * | 2022-02-18 | 2024-04-12 | 浙江银轮机械股份有限公司 | Temperature control valve, engine lubricating oil circuit system, control method and device |
| CN115179018B (en) * | 2022-05-07 | 2023-08-15 | 神钢无锡压缩机股份有限公司 | Oil-free screw rotor pre-assembly device and assembly method |
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