CN101592145B - Air inlet and exhaust valve of compressor - Google Patents
Air inlet and exhaust valve of compressor Download PDFInfo
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- CN101592145B CN101592145B CN200910057465XA CN200910057465A CN101592145B CN 101592145 B CN101592145 B CN 101592145B CN 200910057465X A CN200910057465X A CN 200910057465XA CN 200910057465 A CN200910057465 A CN 200910057465A CN 101592145 B CN101592145 B CN 101592145B
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Abstract
The invention discloses an air inlet and exhaust valve of a compressor, which comprises a valve body, an air valve plate, a spring, a spring seat and an air inlet and exhaust connector, wherein the valve body is arranged on the valve seat; the spring applies a pretightening force during installation to press the air valve plate onto the valve seat tightly; seal is formed between the air valve plate and the valve seat to separate the channels positioned above and below the air valve plate; the air valve plate is made of an impact-resistance nonmetal material and is provided with a guide structure preventing the sidewise inclination of the air valve plate during reciprocal motion of the air valve plate; the valve body is provided with a structure matched with the guide structure; the center of the air valve plate is provided with a central hole; the air valve plate takes the shape of disk, a plurality of guiding pawls or bosses are uniformly arranged at the periphery of the disk; a groove which matches with the guiding pawls or bosses is provided on the valve body along the direction of the reciprocating motion of the air valve plate. The air valve has the advantages of compact arrangement, simple structure, small resistance to air flow, low vibration noise, high reliability and the like and is particularly suitable for use in medium and small flow reciprocating piston type compressors.
Description
Technical field
The present invention relates to compressor, especially air inlet and exhaust valve of compressor.
Background technique
Air inlet and exhaust valve is one of key equipment on the piston compressor, and the quality of its design has material impact for the efficient of compressor, vibration noise, reliability etc.Traditional air inlet and exhaust valve of compressor can be divided into valve plate (sheet) formula and " spring+valve block " formula according to seal request, the former unites two into one spring, valve block, be the spring chip, being used for pressure ratio more and not being very high, seal request neither very high field such as air condition compressor; Latter's good sealing effect, it is higher to be widely used in pressure ratio, the occasion that sealing effect is strict, it generally comprises main parts size such as valve body, valve seat, air valve plate, holddown spring, spring seat, air valve plate fits tightly on valve seat under the compressing of spring, air valve plate and valve seat form sealing, and valve block is generally made by shock proof metallic material; In addition, also have parts such as intake and exhaust joint, seal arrangement on the air inlet and exhaust valve.Above-mentioned " spring+valve block " formula air inlet and exhaust valve is compared valve plate (sheet) air inlet and exhaust valve and is had advantage of good sealing effect, is suitable for higher pressure ratio environment, but still has the following disadvantages:
1, gas valve plate only is subjected to the constraint of spring one degree of freedom, in the running, under very high gas pressure impacts, inclination takes place easily, and valve block is easy to generate chatter, inclination or upset, makes the air inlet and exhaust valve operational failure; In addition, gas valve plate is made of metallic material, and weight is big, is impacted, and vibration noise is big, and is simultaneously easily damaged, poor reliability, the time grown sealing effect also can descend poor.
2, the valve pocket clearance volume is big, and the resistance of gas stream when air inlet and exhaust valve is also bigger, and the efficient of compressor is also had certain influence.
Summary of the invention
The object of the present invention is to provide a kind of air inlet and exhaust valve of compressor, solution has inclination easily in the air inlet and exhaust valve of compressor valve plate movement process now, the gas flow resistance is big, the valve pocket clearance volume is big, air valve noise high-technology problem, this air inlet and exhaust valve has simple in structure, reliability height, the characteristics that vibration noise is low.
The objective of the invention is to solve by following technological scheme:
A kind of air inlet and exhaust valve of compressor comprises valve body, air valve plate, spring, spring seat, intake and exhaust joint, and valve seat is set on the valve body, spring is provided with certain pretightening force when installing, air valve plate is pressed on the valve seat, forms sealing between air valve plate and the valve seat, lower flow channel on the air valve plate is cut off; Described valve seat and valve body are integral types; Described air valve plate is that shock proof nonmetallic material are made; The guide structure of inclination when air valve plate being provided with prevents its to-and-fro motion, valve body is provided with the structure that matches; The central authorities of air valve plate have opened a center hole, are used to alleviate air valve plate weight, increase circulation area simultaneously; Described air valve plate is a disc, evenly arranges a plurality of guide grabs or boss in the periphery of disk; Vibration-direction at valve body upper edge air valve plate is provided with the groove that mates with guide grab or boss.
Above-mentioned air inlet and exhaust valve of compressor, described air valve plate is the boss shape that has center hole, also is provided with the cannular boss that a boss with air valve plate is complementary on spring seat, the two is nested with mutually, as the reciprocating guide mechanism of air valve plate.
Above-mentioned air inlet and exhaust valve of compressor, the material of air valve plate are polyether-ether-ketone or teflon or filled polytetrafluoroethylene.
Above-mentioned air inlet and exhaust valve of compressor, described valve seat is provided with and is used to limit the lift off a seat lift position-limit mechanism of maximum lift of air valve plate, it is on spring seat, arrange the spring periphery, and a boss coaxial with air valve plate, the distance of air valve plate lower end and this boss upper end is the maximum lift of air valve plate; The spring seat center has a hole, is used to increase gas flow area; The following end disc of spring seat is processed into " ten " font, promptly excises four semicircles equably, is used to increase circulation area.
The invention has the beneficial effects as follows:
1, simple in structure, component are few, the reliability height.Air valve plate is provided with guide mechanism, when having prevented to-and-fro motion under the impact of pressurized gas the easy problem of inclination; Air valve plate is made by nonmetallic material, reduced the weight of valve block, has alleviated impact and wearing and tearing that pressurized gas produce, prevents valve block be hit fragmentation, damage, and nonmetallic material are also more favourable to sealing, improved reliability.
2, circulating resistance is little, and clearance volume is little.Center at valve block has the hole, reduces valve block weight first, has increased the circulation area and the resistance of gas simultaneously.Center at spring seat is provided with center hole, around it semicircle orifice is set, and has both increased circulation area, has reduced flow resistance again.
3, reduce impact, reduced vibration noise.Air valve plate is made by nonmetallic material, has both reduced the weight of valve block, again to reducing vibration noise, reduces to impact very favourable.Through valve metal film and nonmetal valve block noise comparative trial, the airborne noise of nonmetal valve block has reduced by 3～5dB (A), and effect is more remarkable.
Description of drawings
The present invention is further described below in conjunction with the drawings and specific embodiments.
Fig. 1 is a structure sectional view of the present invention.
Fig. 2 is the construction profile figure of air valve plate among Fig. 1.
Fig. 3 is the structure sectional view of further embodiment of this invention.
Fig. 4 is the construction profile figure of air valve plate among Fig. 3.
Fig. 5 is the structure sectional view of another embodiment of the present invention.
Fig. 6 is the construction profile figure of air valve plate among Fig. 5.
Fig. 7 is the be hit by a bullet construction profile figure of spring abutment of the present invention.
Among the figure: 1. joint, 2. valve body, 3. air valve plate, 4. spring, 5. spring seat.
Embodiment
Shown in Figure 1 is the sectional view of air inlet and exhaust valve agent structure of the present invention, it comprises parts such as joint 1, valve body 2, air valve plate 3, spring 4, spring seat 5, valve body 2 is the column structure of a hollow, be disposed with joint 1, valve seat, air valve plate 3, spring 4, spring seat 5 from top to bottom, valve seat is arranged on the central authorities of valve body 2, with valve body 2 are integral types, its upper end is provided with intake and exhaust joint 1, have the hole of a plurality of symmetries on the valve seat, the valve seat upper and lower end is communicated with.Air valve plate 3 upper ends are close on the valve seat, and form plane sealing, and when the compressor off working state, air valve plate 3 cuts off the runner of its both sides, can not circulate.The lower end of air valve plate 3 is compressed by spring 4, and air valve plate 3 closely is pressed on the valve seat.The lower end of spring 4 is provided with spring seat 5, and spring seat 5 links together with valve body 2, generally adopts thread connecting mode.
As shown in Figure 2, air valve plate 3 is disc, the centre is provided for the counterbore of mounting spring 4, also have a through hole at the center of air valve plate 3, this hole is coaxial with spring for valve 4, and the setting in this hole is the circulation area that can increase gas first, second can reduce the weight of air valve plate 3, impacting for reducing, reduce noise, also is very favourable.On excircle on the air valve plate 3, also be provided with guide structure, promptly evenly be furnished with four guide grabs or boss in the outer ring, in the valve pocket inboard, just also be provided with the direction recess that is complementary on the valve body 2 equally, the layout of direction recess is along the vibration-direction of air valve plate 3.Because air valve plate 3 increased guide structure, this just guaranteed air valve plate 3 can inclination in opening-closing process, upset, improved the sealability and the stressed uniformity of air valve.Air valve plate 3 is made by nonmetallic material, as polyether-ether-ketone or filled polytetrafluoroethylene material, adopts nonmetallic material to greatly reduce the weight of valve block, and shock resistance improves greatly simultaneously, has improved reliability, has reduced vibration noise, also makes sealing effect better.Air valve plate 3 is generally easily damaged parts, needs periodic replacement, change nonmetallic material into after because valve block is light, shock resistance is good, and is not easy to wear, improved the replacement cycle greatly.
Fig. 3, Fig. 4 are further embodiment of this invention, the movement guide mechanism of air valve plate 3 is the guide rod structure, on air valve plate 3, have one or more pilot holes, spring seat 5 or valve seat or valve body 2 are provided with guide rod, and air valve plate 3 is set on the guide rod, when compressor operating, when air valve plate 3 opens and closes, air valve plate 3 moves along guide rod, thereby has prevented air valve plate 3 inclinations or chatter, has improved the functional reliability of air valve plate 3.Guide rod is symmetrical arranged, and two of operated by rotary motion symmetric arrangement get final product.
Fig. 5, Fig. 6 are another embodiment of the present invention.A cannular boss is arranged in the lower end of air valve plate 3, boss has certain height, on spring seat 5, also be provided with the cannular boss that a boss with air valve plate 3 is complementary, the two is nested with mutually, reserve certain interval, when valve block moved up and down, the boss that is nested with mutually just served as air valve plate 3 reciprocating guide mechanisms, prevents its inclination.
As shown in Figure 7, be the construction profile figure of spring seat 5 of the present invention.Be provided with a cannular boss in the upper end of spring seat 5, this boss is coaxial with the installation counterbore of spring 4, and spring 4 lower ends are arranged in the boss inside of hollow.The upper shoulder height of boss determines that according to the maximum lift of air valve plate 3 during installation, the passive distance of the lower end of air valve plate 3 and the upper shoulder of boss is the maximum lift of air valve plate 3.Just can limit the lift of air valve plate 3 by the height of adjusting boss, so the double again lift limiter of doing of spring seat 5, the two is an one.Certainly lift limiter can also be arranged on the valve body 2 or other position, as long as play the lift of restriction air valve plate 3 in a word.The lower end plectane of spring seat 5 is processed into " ten " font structure, excise four semicircles equably in its outside, spring seat 5 center drillings, this spline structure had both guaranteed that the rigidity of spring seat 5 had guaranteed that also it has enough flow areas, and it is very little to make air flow stream cross the resistance of 4 on spring.
Air inlet and exhaust valve of the present invention has only designed a spring 4 and has been arranged in the center of valve opening, and element coaxials such as valve block, valve seat, lift limiter, spring 4, spring seat 5, such layout has just guaranteed that the motion of valve block chatter and inclination can not take place, can make the lift of valve block bigger, the lift of valve plate that its lift is more traditional can improve 2-4 doubly, because thereby the raising of lift has improved the cross section of the circulation of valve clearance, reduced the valve damage, improved the efficient of air valve; With the nonmetal valve block of doing, reduced the impact that produces in the valve plate movement process, reduced the noise of air valve; The structural design of whole air valve is simple, the compact structure component are few, makes air valve be easy to produce, install, and safeguards, has also increased the reliability of air inlet and exhaust valve work.
Whole air valve is only arranged a spring 4 in the central position of lift limiter, thereby has guaranteed the stressed uniformity of valve block; The air inlet and exhaust valve runner has been designed to a centrosymmetric passage, thereby has reduced the drag losses of gas stream through air valve, has improved the Economy of air valve.The component of air valve are few, layout is compact, thereby improved the reliability and the Economy of air valve
Working principle of the present invention is as follows:
Under static state, air valve plate 3 makes air valve sealing under the pretightening force effect of spring 4; When working procedure, when the thrust gas of valve seat side is made a concerted effort greater than the pretightening force of the thrust gas of air valve plate 3 downsides and spring 4, air valve plate 3 is opened, air valve plate 3 continues up under the effect of thrust gas, until contacting with the convex shoulder of lift limiter, air valve plate 3 owing to be provided with guide structure, makes the stressed uniformity of valve block in the process of moving to lift limiter, has guaranteed that valve block can inclination at running.Otherwise, when the thrust gas of valve seat side is made a concerted effort less than the pretightening force of the thrust gas of air valve plate 3 downsides and spring 4, air valve plate 3 is closed under the effect of spring 4 power, air valve plate 3 is in the process of valve seat operation, because the design of guide structure has guaranteed the coaxality of air valve plate 3 with sealing surface of seat, when air valve plate 3 is contacted with valve seat stressed evenly, thereby improved the life-span and the sealability of valve block.
Processed a cover air inlet and exhaust valve according to the solution of the present invention, valve block adopts polyetheretherketonematerials materials, tests with compressor, test result shows that air inlet and exhaust valve is stable, and effect is remarkable, vibration noise obviously reduces, and the structure that airborne noise is more traditional has reduced more than the 3dB (A).
The Reciprocting piston compressor of small flow during air inlet and exhaust valve of the present invention is particularly useful for.
Claims (3)
1. air inlet and exhaust valve of compressor, comprise valve body (2), air valve plate (3), spring (4), spring seat (5), intake and exhaust joint (1), valve body is provided with valve seat on (2), spring (4) is provided with certain pretightening force when installing, air valve plate (3) is pressed on the valve seat, form sealing between air valve plate (3) and the valve seat, air valve plate (3) is gone up lower flow channel cut off; Described valve seat and valve body (2) are integral types; It is characterized in that: described air valve plate (3) is made for shock proof nonmetallic material; Air valve plate (3) is provided with the guide structure of inclination when preventing its to-and-fro motion, and valve body (2) is provided with the structure with the guide mechanism coupling; The central authorities of air valve plate (3) have opened a center hole, are used to alleviate air valve plate (3) weight, increase circulation area simultaneously; Described air valve plate (3) is a disc, evenly arranges a plurality of guide grabs or guide ledges in the periphery of disk; Vibration-direction at valve body (2) upper edge air valve plate (3) is provided with the groove that mates with guide grab or guide ledges.
2. air inlet and exhaust valve of compressor according to claim 1 is characterized in that: the material of described air valve plate (3) is polyether-ether-ketone or teflon or filled polytetrafluoroethylene.
3. air inlet and exhaust valve of compressor according to claim 1, it is characterized in that: described valve seat is provided with and is used to limit the lift off a seat lift position-limit mechanism of maximum lift of air valve plate (3), the lift position-limit mechanism is on spring seat (5), arrange spring (4) periphery, and a boss coaxial with air valve plate (3), the distance of air valve plate (3) lower end and this boss upper end is the maximum lift of air valve plate (3); Spring seat (5) center has a hole, is used to increase gas flow area; The following end disc of spring seat (5) is processed into " ten " font, promptly excises four semicircles equably, is used to increase circulation area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910057465XA CN101592145B (en) | 2009-06-24 | 2009-06-24 | Air inlet and exhaust valve of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910057465XA CN101592145B (en) | 2009-06-24 | 2009-06-24 | Air inlet and exhaust valve of compressor |
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| Publication Number | Publication Date |
|---|---|
| CN101592145A CN101592145A (en) | 2009-12-02 |
| CN101592145B true CN101592145B (en) | 2011-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910057465XA Active CN101592145B (en) | 2009-06-24 | 2009-06-24 | Air inlet and exhaust valve of compressor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104806481A (en) * | 2014-01-24 | 2015-07-29 | 上海华林工业气体有限公司 | CO compressor air valve for HYCO device |
| CN103925193B (en) * | 2014-04-30 | 2016-12-07 | 芜湖欧宝机电有限公司 | High-efficient low-noise reciprocating-piston freezer compressor and manufacturing process thereof |
| EP3297857A1 (en) * | 2015-05-22 | 2018-03-28 | Dana Heavy Vehicle Systems Group, LLC | Method of decreasing tire pressure |
| CN109441803A (en) * | 2018-11-19 | 2019-03-08 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of scroll plate component and screw compressor |
| CN114917620A (en) * | 2022-05-25 | 2022-08-19 | 上海港岸仪器技术有限公司 | Positive pressure pressurizing gun and pressurizing device for solid-phase extraction small column |
| CN115727173B (en) * | 2022-11-24 | 2024-03-08 | 上海羿弓氢能科技有限公司 | High-pressure hydrogen compressor is with long-life pneumatic valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4289159A (en) * | 1978-11-11 | 1981-09-15 | Audi Nsu Auto Union | Outlet valve for a gas compressor |
| CN2040542U (en) * | 1988-11-18 | 1989-07-05 | 化学工业部化工机械研究院 | Guide-inlaid annular gas valve |
| CN1080830C (en) * | 1995-12-05 | 2002-03-13 | 三星光州电子株式会社 | Hermetic reciprocating compressor |
| CN1249342C (en) * | 2002-05-17 | 2006-04-05 | 乐金电子(天津)电器有限公司 | Reciprocating compressor |
-
2009
- 2009-06-24 CN CN200910057465XA patent/CN101592145B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4289159A (en) * | 1978-11-11 | 1981-09-15 | Audi Nsu Auto Union | Outlet valve for a gas compressor |
| CN2040542U (en) * | 1988-11-18 | 1989-07-05 | 化学工业部化工机械研究院 | Guide-inlaid annular gas valve |
| CN1080830C (en) * | 1995-12-05 | 2002-03-13 | 三星光州电子株式会社 | Hermetic reciprocating compressor |
| CN1249342C (en) * | 2002-05-17 | 2006-04-05 | 乐金电子(天津)电器有限公司 | Reciprocating compressor |
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| CN101592145A (en) | 2009-12-02 |
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