CN101126457A - Surge-proof butterfly valve - Google Patents
Surge-proof butterfly valve Download PDFInfo
- Publication number
- CN101126457A CN101126457A CNA2007101754097A CN200710175409A CN101126457A CN 101126457 A CN101126457 A CN 101126457A CN A2007101754097 A CNA2007101754097 A CN A2007101754097A CN 200710175409 A CN200710175409 A CN 200710175409A CN 101126457 A CN101126457 A CN 101126457A
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- valve
- valve plate
- surge
- butterfly valve
- plate
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- Lift Valve (AREA)
Abstract
The invention provides a low-vibration antisurge butterfly valve, which includes a valve body and a valve plate arranged in the valve body, wherein a baffler with diversion holes is arranged along the edge of the valve plate on the back of the valve plate. The positive effect of the invention is that the part of the medium flow will be guided to a central air cavity at the back of the valve plate by the diversion hole when the valve plate is opened, and the medium flow will flow continuously according to the original direction after filling the air cavity. According to the fluid mechanics principle, the medium flow passing the edge of the valve plate will basically flow forward along the original direction, so after the medium flow passes the valve plate, the flow direction of the medium flow passing the valve plate by the diversion hole and the medium flow passing the valve plate by the edge of the valve plate will approach to be the same, and is basically the same with the flow direction of the original medium, so the turbulence is effectly decreased. The invention of antisurge butterfly valve can considerably reduce the vibration, decrease the noise and prolong the service life of the valve.
Description
Technical field
The present invention relates to a kind of butterfly valve, especially a kind of surge-proof butterfly valve of low vibration.
Background technique
As shown in Figure 1, traditional butterfly valve structure generally includes valve body 1 and the valve plate 2 that is rotatably installed in the valve body 1.Its working principle is: the flow that comes control media by the size of rotational valve plate 2 angles.And when the moment that valve plate 2 is opened, originally substantially parallel flow direction is changed by force, and the medium by butterfly valve will form strong turbulent flow and panting like this, thereby produces great vibrations, and is accompanied by strong noise.So, use this traditional butterfly valve as controlling device, noise, vibration are unavoidable.At above situation, the inventor mainly starts with from the structure of valve plate through concentrating on studies, and has designed the butterfly valve of low vibration, has fundamentally solved the panting problem of butterfly valve.
Summary of the invention
The technical problem that solves
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of low vibration surge-proof butterfly valve.
Technological scheme
For achieving the above object, the present invention adopts following technological scheme:
Surge-proof butterfly valve of the present invention comprises valve body and is installed in the interior valve plate of valve body that wherein be provided with guide plate at the back side of described valve plate along the valve plate edge, guide plate is provided with several conduction holes that medium is caused center, the valve plate back side.
The arc length of described guide plate is 1/4～1/2 of a valve plate circumference.
Described several conduction holes are radial arrangement on guide plate.
The quantity of described several conduction holes is the odd number of symmetric arrays.
The size of described several conduction holes is diminished gradually by the mediad both sides.
Described conduction hole is a cone shape hole.Cone angle is 2 °～10 °.
Beneficial effect
The advantage and the good effect of surge-proof butterfly valve of the present invention are: among the present invention, because the dorsal edge at valve plate is provided with guide plate, guide plate is provided with several conduction holes, when valve plate is opened, medium has part and is directed in the air chamber of center, the valve plate back side under the guiding function of conduction hole, after filling this place's air chamber, substantially with consistent the moving on of former MEDIA FLOW direction.According to fluid mechanics principle, because the air chamber of center, the valve plate back side obtains filling, can advance along original flow direction basically by the MEDIA FLOW that the valve plate edge passes through, so, by behind the valve plate, no matter be by the MEDIA FLOW of conduction hole by valve plate in MEDIA FLOW, still by the MEDIA FLOW of valve plate edge by valve plate, their flow direction reaches unanimity, and basic identical with former MEDIA FLOW direction, so effectively alleviated turbulent phenomenon.So surge-proof butterfly valve of the present invention can reduce vibration significantly, reduce noise, be beneficial to simultaneously and prolong its working life.
Description of drawings
Fig. 1 is the structural representation of traditional butterfly valve, and the MEDIA FLOW of wherein expressing is opened the state of moment at valve plate;
Fig. 2 is the structural representation of surge-proof butterfly valve of the present invention;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the A-A view of Fig. 2;
Fig. 5 represents in the surge-proof butterfly valve of the present invention that MEDIA FLOW is opened the schematic representation of momentary status at valve plate.
Embodiment
Following examples are used to illustrate the present invention, but are not used for limiting the scope of the invention.
Referring to Fig. 2, Fig. 3 and Fig. 4.Surge-proof butterfly valve of the present invention comprises valve body 1 and is installed in valve plate 2 in the valve body 1 and driving mechanism 5 that drive valve plate 2 is rotated.The back side at valve plate 2 is provided with guide plate 3 along the valve plate edge.This guide plate 3 is arranged on valve plate 2 and opens the bigger side of moment media flow resistance, and the arc length of guide plate 3 is 1/3 of a valve plate circumference, and its length is that 1/4～1/2 of valve plate circumference all is feasible.On guide plate 3, be provided with several conduction holes 4.The effect of conduction hole 4 is when valve plate is opened medium to be caused center, valve plate 2 back side, with near the air chamber the elimination center, the valve plate back side, reduces vibration significantly.Several conduction holes 4 are radial arrangement on guide plate 3, be beneficial to the bump energy dissipating that crosses at the valve plate back side of MEDIA FLOW through conduction hole 4.The quantity of conduction hole 4 is the odd number of symmetric arrays preferably, and the size of conduction hole 4 diminishes gradually by the mediad both sides, can make speed, flow through the MEDIA FLOW of each conduction hole 4 be tending towards identical like this, better the air chamber of filling-valve backboard face.Conduction hole among the present invention can be that tapering is 4 ° a cone shape hole, can guide more MEDIA FLOW to arrive the air chamber of center, the valve body back side by conduction hole.The tapering of conduction hole all is feasible in 2 °～10 ° scopes.
As shown in Figure 5, surge-proof butterfly valve of the present invention, when adjusting driving mechanism 5 unlatching valve plates 2, most of MEDIA FLOW is passed through by the space between valve plate and the valve body.Wherein at upper portion, the side that the resistance that is subjected to when promptly MEDIA FLOW is by valve plate is less, MEDIA FLOW can continue the direction that keeps original basically; Lower portion, it is the bigger side of resistance that MEDIA FLOW is subjected to during by valve plate, this part MEDIA FLOW is divided again and two-part, wherein sub-fraction moves on former flow direction is consistent substantially by the air chamber part back that each conduction hole 4 flows into valve plate 2 back sides, another major part then can be crossed the valve plate edge, keeps original direction to advance basically.All in all, under the effect of conduction hole 4, the MEDIA FLOW by valve plate 2 does not change original flow direction basically, so from turbulent flow, the panting phenomenon of basic elimination, alleviated vibration effectively, has reduced noise, has prolonged the working life of valve.
More than be preferred forms of the present invention, according to content disclosed by the invention, some identical, replacement schemes that those of ordinary skill in the art can expect apparently all should fall into the scope of protection of the invention.
Claims (8)
1. surge-proof butterfly valve, comprise valve body (1) and be installed in the interior valve plate (2) of valve body (1), it is characterized in that being provided with guide plate (3) along the valve plate edge at the back side of described valve plate (2), guide plate (3) is provided with several conduction holes (4) that medium is caused center, the valve plate back side.
2. surge-proof butterfly valve as claimed in claim 1, the arc length that it is characterized in that described guide plate (3) is 1/4～1/2 of a valve plate circumference.
3. surge-proof butterfly valve as claimed in claim 1 or 2 is characterized in that described several conduction holes (4) are radial arrangement on guide plate (3).
4. surge-proof butterfly valve as claimed in claim 3, the quantity that it is characterized in that described several conduction holes (4) is the even number of symmetric arrays.
5. surge-proof butterfly valve as claimed in claim 3, the quantity that it is characterized in that described several conduction holes (4) is the odd number of symmetric arrays.
6. surge-proof butterfly valve as claimed in claim 4 is characterized in that the size of described several conduction holes (4) is diminished gradually by the mediad both sides.
7. as claim 1,2,4,5 or 6 described surge-proof butterfly valves, it is characterized in that described conduction hole (4) is a cone shape hole.
8. surge-proof butterfly valve as claimed in claim 7, the cone angle that it is characterized in that described taper conduction hole (4) are 2 °～10 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101754097A CN101126457A (en) | 2007-09-29 | 2007-09-29 | Surge-proof butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101754097A CN101126457A (en) | 2007-09-29 | 2007-09-29 | Surge-proof butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101126457A true CN101126457A (en) | 2008-02-20 |
Family
ID=39094550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101754097A Pending CN101126457A (en) | 2007-09-29 | 2007-09-29 | Surge-proof butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101126457A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276236A (en) * | 2014-05-27 | 2016-01-27 | Vag阀门有限公司 | Shut-off flap |
| CN106195428B (en) * | 2016-09-29 | 2019-11-05 | 李岑文达 | A kind of vibration proof noise-proofing builds the pressure butterfly valve |
| CN115727532A (en) * | 2022-11-22 | 2023-03-03 | 无锡恒业电热电器有限公司 | High-efficiency micro-channel heater |
-
2007
- 2007-09-29 CN CNA2007101754097A patent/CN101126457A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276236A (en) * | 2014-05-27 | 2016-01-27 | Vag阀门有限公司 | Shut-off flap |
| CN105276236B (en) * | 2014-05-27 | 2019-04-12 | Vag阀门有限公司 | Shut-off valve |
| CN106195428B (en) * | 2016-09-29 | 2019-11-05 | 李岑文达 | A kind of vibration proof noise-proofing builds the pressure butterfly valve |
| CN115727532A (en) * | 2022-11-22 | 2023-03-03 | 无锡恒业电热电器有限公司 | High-efficiency micro-channel heater |
| CN115727532B (en) * | 2022-11-22 | 2023-12-08 | 无锡恒业电热电器有限公司 | High-efficiency micro-channel heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |