CN210290828U - Flow passage opening surface structure of high flow coefficient valve body - Google Patents
Flow passage opening surface structure of high flow coefficient valve body Download PDFInfo
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- CN210290828U CN210290828U CN201920997320.7U CN201920997320U CN210290828U CN 210290828 U CN210290828 U CN 210290828U CN 201920997320 U CN201920997320 U CN 201920997320U CN 210290828 U CN210290828 U CN 210290828U
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Abstract
The utility model relates to a runner mouth face structure of high flow coefficient valve body, for seting up the mouth face structure of the runner on the valve body, the runner mouth cross sectional shape of runner is bilateral symmetry structure, the runner mouth cross-section upper end of runner is wide, and the lower extreme is narrow, just the runner mouth cross-section edge department of runner is the arc. The utility model discloses a carry out the optimal design to valve body runner structure, the utility model discloses a runner structure does not have the dead angle of probably silting up the medium to increased the circulation ability of valve, simultaneously based on the utility model discloses the optimization of runner structure has increased the sealed area that the valve needs sealed position, has improved the fail safe nature of valve seal. The utility model discloses a valve body structure has cancelled the pressure relief groove of the sealed face department of valve body, will unload the pressure relief groove and has transferred to the diaphragm subassembly on, has avoidd the difficult point of valve body pressure relief groove design, technology, has eliminated the stress concentration of valve body notch to the diaphragm, has reduced the possibility of diaphragm wearing and tearing and destruction, has improved the life of diaphragm.
Description
Technical Field
The utility model relates to a valve body structure especially relates to a runner oral area structure of high flow coefficient valve body.
Background
The nuclear grade M-shaped straight-through diaphragm valve is one of diaphragm valves commonly used in domestic nuclear power stations at present, the series of valves adopt a non-packing box structure, and the diaphragm is used as a middle flange seal and valve seal assembly and a barrier for isolating a valve body and a valve cover, so that the sealing is safe and reliable.
Chinese patent publication No. CN103527812A discloses a nuclear grade M-type pneumatic straight-through diaphragm valve, which comprises a valve body, a diaphragm, a valve flap, a valve cover, a valve rod, an adjusting screw, a hand wheel rod, a hand wheel, a cylinder, a bracket, an indicating rod and a guide plate; the valve body and valve gap be connected the back and form the space that holds the valve clack, the diaphragm establish the junction at valve body and valve gap, valve rod lower extreme and valve clack be connected, valve rod upper end be connected with adjusting screw, adjusting screw upper end be connected with hand wheel pole through the cylinder, hand wheel pole upper end and hand wheel connection, the cylinder pass through support and valve gap connection, the pilot lever upper end fix on the deflector, pilot lever lower extreme and valve gap fixed connection, the deflector be connected with the valve rod.
Chinese patent publication No. CN204610894U discloses a nuclear grade M-type normally open pneumatic straight-through diaphragm valve, which includes a valve body, a valve cover, a valve flap, a valve rod, a support, an adjusting screw, a cylinder, a hand wheel rod and a hand wheel, the valve cover, the valve flap, the valve rod, the support, the adjusting screw, the cylinder, the hand wheel and the hand wheel are all disposed on the valve body, the diaphragm is disposed at the joint between the valve body and the valve cover, the bottom of the valve rod penetrates the valve cover to be connected with the valve flap and is disposed in the valve body, the top of the valve rod penetrates the support to be connected with the adjusting screw, the upper end of the adjusting screw is connected with the hand wheel rod, the hand wheel is disposed at the upper end of the hand wheel rod, an operating film, an upper film plate and a lower film plate are disposed in the cylinder, the bottom of the operating film is disposed with the adjusting screw through the upper.
However, the existing M-type straight-through diaphragm valve generally has the problems of low flow coefficient, large flow resistance, short service life of the diaphragm and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a runner mouth face structure of high flow coefficient valve body in order to overcome the defect that above-mentioned prior art exists.
The purpose of the utility model can be realized through the following technical scheme:
the utility model provides a runner mouth face structure of high flow coefficient valve body, is the mouth face structure of seting up the runner on the valve body, the runner mouth cross sectional shape of runner is bilateral symmetry structure, the runner mouth cross-section upper end of runner is wide, and the lower extreme is narrow, just the runner mouth cross-section edge of runner is the arc.
Furthermore, the arc shape of the lowest end of the cross section of the runner opening of the runner channel is superposed with the circle center corresponding to the arc shape of the lowest end of the cross section of the valve body.
Furthermore, the arc shape of the lowest end of the cross section of the runner opening of the runner is arc-shaped.
Further, the length of the arc line at the uppermost end of the cross section of the runner port of the runner is 1.01-1.2 times of the corresponding diameter length of the arc line at the lowermost end of the cross section of the runner port of the runner.
Further, the flow passage is located at the bottom of the valve body.
Further, a gap is reserved between the flow passage and the bottom of the valve body.
Further, the upper space of the flow passage is a valve body cavity for placing the diaphragm.
Further, the valve body is not provided with a pressure relief groove.
Furthermore, the valve body is matched with a diaphragm for use, a pressure relief groove is formed in the diaphragm, and the diaphragm is lifted in a direction perpendicular to the flow channel to open and close the valve and adjust the flow of the valve.
Further, the valve body is a valve body of the M-type straight-through diaphragm valve.
The utility model discloses a carry out the optimal design to valve body runner structure, the utility model discloses a runner structure does not have the dead angle of probably silting up the medium to increased the circulation ability of valve, simultaneously based on the utility model discloses the optimization of runner structure has increased the sealed area that the valve needs sealed position, has improved the fail safe nature of valve seal.
The utility model discloses a valve body structure has cancelled the pressure relief groove of the sealed face department of valve body, will unload the pressure relief groove and has transferred to the diaphragm subassembly on, has avoidd the difficult point of valve body pressure relief groove design, technology, has eliminated the stress concentration of valve body notch to the diaphragm, has reduced the possibility of diaphragm wearing and tearing and destruction, has improved the life of diaphragm.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses a carry out the optimal design to valve body runner structure for the circulation ability of valve body runner is strong, the Cv value is high, and the valve body flow coefficient after optimizing is showing and is improving, has reduced fluidic energy loss, has improved the circulation ability and the energy utilization ratio of valve.
2. Reliable sealing and long service life: as shown above, the utility model increases the sealing area of the sealing part of the valve when optimizing the convection channel, and improves the reliability of sealing; meanwhile, the working environment of the diaphragm is improved, excessive extrusion deformation of the diaphragm at a sealing surface is avoided, the probability of wear and damage of the diaphragm is reduced, and the service life of the diaphragm is prolonged.
3. The utility model discloses a valve body structure has cancelled the pressure relief groove of the sealed face department of valve body, will unload the pressure relief groove and has transferred to the diaphragm subassembly on, has avoidd the difficult point of valve body pressure relief groove design, technology, has saved a large amount of costs, has eliminated the stress concentration of valve body notch to the diaphragm, has reduced the possibility of diaphragm wearing and tearing and destruction, has improved the life of diaphragm.
Drawings
Fig. 1 is a schematic structural diagram of the valve body of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Referring to fig. 1, a flow channel mouth surface structure of a high flow coefficient valve body is a mouth surface structure of a flow channel 2 arranged on a valve body 1, the cross section of the flow channel 2 is in a bilateral symmetry structure, the upper end of the cross section of the flow channel 2 is wide, the lower end of the cross section of the flow channel is narrow, and the corners of the cross section of the flow channel 2 are arc-shaped.
In this embodiment, the arc shape of the lowest end of the cross section of the runner port of the runner 2 coincides with the center of the circle corresponding to the arc shape of the lowest end of the cross section of the valve body 1. The arc line of the lowest end of the cross section of the runner opening of the runner 2 is arc-shaped. The length of the arc line at the uppermost end of the cross section of the runner port of the runner 2 is 1.01-1.2 times of the corresponding diameter length of the arc line at the lowermost end of the cross section of the runner port of the runner 2. The flow passage 2 is positioned at the bottom of the valve body 1. And a gap is reserved between the flow passage 2 and the bottom of the valve body 1.
In this embodiment, the space above the flow channel 2 is a valve body cavity 3 for placing a diaphragm. The valve body 1 is not provided with a pressure relief groove. The valve body 1 is matched with a diaphragm for use, the diaphragm is provided with a pressure relief groove, and the diaphragm is lifted in a direction perpendicular to a flow channel to open and close the valve and adjust the flow of the valve.
In this embodiment, the valve body 1 is a valve body of an M-type straight-through diaphragm valve.
This embodiment has carried out the optimal design through the runner structure to the valve body, the utility model discloses a runner structure does not have the dead angle of probably silting up the medium to increased the circulation ability of valve, simultaneously based on the utility model discloses runner structure's optimization has increased the seal area that the valve needs seal position, has improved valve seal's fail safe nature.
The valve body structure of this embodiment has cancelled the pressure relief groove of the sealed face department of valve body, has transferred the pressure relief groove to the diaphragm subassembly on, has evaded the difficult point of valve body pressure relief groove design, technology, has eliminated the stress concentration of valve body notch to the diaphragm, has reduced the possibility of diaphragm wearing and tearing and destruction, has improved the life of diaphragm.
Claims (10)
1. The utility model provides a runner mouth face structure of high flow coefficient valve body, is the mouth face structure of runner (2) of seting up on valve body (1), its characterized in that, the runner mouth cross sectional shape of runner (2) is bilateral symmetry structure, the runner mouth cross-section upper end of runner (2) is wide, and the lower extreme is narrow, just the runner mouth cross-section edge of runner (2) is the arc.
2. The flow passage port surface structure of the valve body with the high flow coefficient as claimed in claim 1, wherein the arc shape of the lowest end of the cross section of the flow passage port of the flow passage (2) coincides with the center of the circle corresponding to the arc shape of the lowest end of the cross section of the valve body (1).
3. The flow passage opening surface structure of the valve body with the high flow coefficient as claimed in claim 2, wherein the arc shape of the lowest end of the flow passage opening cross section of the flow passage (2) is a circular arc.
4. The flow passage port surface structure of the valve body with high flow coefficient as claimed in claim 3, wherein the length of the arc line at the uppermost end of the flow passage port cross section of the flow passage (2) is 1.01-1.2 times of the corresponding diameter length of the arc line at the lowermost end of the flow passage port cross section of the flow passage (2).
5. The runner port surface structure of a high flow coefficient valve body according to claim 1, characterized in that the runner (2) is located at the bottom of the valve body (1).
6. The runner port surface structure of a high flow coefficient valve body according to claim 5, characterized in that a gap is left between the runner (2) and the bottom of the valve body (1).
7. The runner mouth surface structure of a high flow coefficient valve body according to claim 1, characterized in that the upper space of the runner (2) is a valve body cavity (3) for placing a diaphragm.
8. The runner port surface structure of a high flow coefficient valve body according to claim 1, characterized in that no relief groove is provided on the valve body (1).
9. The runner port surface structure of the high flow coefficient valve body according to claim 8, wherein the valve body (1) is used in combination with a diaphragm, the diaphragm is provided with a pressure relief groove, and the opening and closing of the valve and the adjustment of the valve flow are realized by the lifting of the diaphragm in the direction perpendicular to the flow channel.
10. The flow port surface structure of a high flow coefficient valve body according to claim 1, wherein said valve body (1) is a valve body of an M-type straight-through diaphragm valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920997320.7U CN210290828U (en) | 2019-06-28 | 2019-06-28 | Flow passage opening surface structure of high flow coefficient valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920997320.7U CN210290828U (en) | 2019-06-28 | 2019-06-28 | Flow passage opening surface structure of high flow coefficient valve body |
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| Publication Number | Publication Date |
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| CN210290828U true CN210290828U (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920997320.7U Active CN210290828U (en) | 2019-06-28 | 2019-06-28 | Flow passage opening surface structure of high flow coefficient valve body |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173576A (en) * | 2019-06-28 | 2019-08-27 | 上海阀门五厂有限公司 | A kind of runner mouth face structure of high mass capture ratio valve body |
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2019
- 2019-06-28 CN CN201920997320.7U patent/CN210290828U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173576A (en) * | 2019-06-28 | 2019-08-27 | 上海阀门五厂有限公司 | A kind of runner mouth face structure of high mass capture ratio valve body |
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