CN206647557U - Power station sluice valve - Google Patents
Power station sluice valve Download PDFInfo
- Publication number
- CN206647557U CN206647557U CN201720317010.7U CN201720317010U CN206647557U CN 206647557 U CN206647557 U CN 206647557U CN 201720317010 U CN201720317010 U CN 201720317010U CN 206647557 U CN206647557 U CN 206647557U
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- Prior art keywords
- pressure release
- valve body
- flashboard
- valve
- runner
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Abstract
The utility model discloses a kind of power station sluice valve, including valve body, flashboard, valve rod, bonnet and operating mechanism, valve body middle chamber, entrance channel and outlet flow are provided with valve body, the valve rod is through in bonnet, and the lower end of valve rod is stretched into valve body and is connected with flashboard, the upper end of the valve rod passes outside bonnet and is connected with operating mechanism, flashboard is provided with pressure release runner, the entrance of the pressure release runner is connected with valve body middle chamber, the outlet of the pressure release runner is connected when flashboard is closed with outlet flow, and pressure release component is provided with the pressure release runner.In valve opening, medium in valve body middle chamber is flowed out ahead of time by pressure release runner, so as to reduce unlatching moment, and the entrance channel and outlet flow of flashboard both sides are balanced, when descending in off position, pressure that also can be too high to valve body middle chamber carries out pressure release, realize pressure balance when opening and closing, and then unlatching moment is reduced, avoid sealing surface frictional force increase from causing to wear, improve service life.
Description
Technical field
It the utility model is related to valve field, and in particular to a kind of power station sluice valve.
Background technology
Power station sluice valve is also referred to as power station special valve, is primarily adapted for use on the pipeline of the various systems of firepower power station, cuts off or connects
Siphunculus road medium.The characteristics of power station valve is compared with other valve products are HTHPs, and unique self sealss design, pressure is got over
Height, sealing are more reliable.When the valve rod promotion flashboard of power station sluice valve blocks, medium can enter in valve body middle chamber and form confined air
Between；And when being then turned on valve, pressure rise in valve body middle chamber, torque when valve rod opens and closes increases therewith, results even in valve
Clamping stagnation is opened, certain fault of construction be present.
The content of the invention
The purpose of this utility model：The defects of in order to overcome prior art, the utility model provide one kind and can reduced
The power station sluice valve of unlatching moment.
The technical solution of the utility model：Including valve body, flashboard, valve rod, bonnet and operating mechanism, it is provided with valve body
Valve body middle chamber, entrance channel and outlet flow, the valve rod is through in bonnet, and the lower end of valve rod is stretched into valve body and and lock
Plate connects, and the upper end of the valve rod passes outside bonnet and is connected with operating mechanism, and flashboard is provided with pressure release runner, the pressure release stream
The entrance in road is connected with valve body middle chamber, and the outlet of the pressure release runner connects when flashboard is closed with outlet flow, the pressure release
Pressure release component is installed in runner.
Using above-mentioned technical proposal, in valve opening, the medium in valve body middle chamber is flowed out ahead of time by pressure release runner,
So as to reduce unlatching moment, and the entrance channel and outlet flow of flashboard both sides are balanced, when descending in off position, also can
The pressure too high to valve body middle chamber carries out pressure release, realizes pressure balance when opening and closing, and then reduces unlatching moment, avoids sealing surface
Frictional force increase causes to wear, and improves service life.
It is of the present utility model further to set：Pressure release component includes baffle plate block, mobile jib, spring and screw, the master
Bar it is anterior through in baffle plate block, and the rear portion of mobile jib is stretched into spring and offseted with screw, baffle plate block respectively with pressure release runner,
Mobile jib sliding coordinates, and pressure release runner coordinates with screw thread.
Further set using above-mentioned, pressure release runner is stopped by baffle plate block, when ambient pressure is sufficiently large, promote baffle plate
Block movement and spring-compressed, runner, which is opened, carries out pressure release, compact-sized, easy for installation.
It is of the present utility model further to set：Pressure release runner include first flow, second flow channel and with it is first-class
The component mounting hole of the same axis in road；One end of the first flow is arranged to the entrance of pressure release runner, and the other end is pacified with component
Hole connection is filled, and stepped hole is set in junction；The component mounting hole is through to gate panel surface, the pressure release group by stepped hole
Part is installed in component mounting hole, and the baffle plate block and stepped hole offset setting, and the screw is disposed in proximity to the component of flashboard
In mounting hole；The entrance of the second flow channel be positioned close to it is at the stepped hole of component mounting hole and corresponding with baffle plate block,
The outlet of two runners is arranged to the outlet of pressure release runner.
Further set using above-mentioned, during pressure release, medium enters from first flow, promotes baffle plate block to open second flow channel
Entrance, finally flowed out from second flow channel, design simple easily manufacture, pressure release significant effect.
Setting further again of the present utility model：Screw is arranged to headless screw.
Using above-mentioned setting further again, the elastic force that adjusting screw position-adjustable spring applies to baffle plate block, so as to
Adjust pressure size needed for pressure release.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model specific embodiment；
Fig. 2 is the enlarged drawing at A in Fig. 1；
Wherein, valve body 1, flashboard 2, valve rod 3, bonnet 4, operating mechanism 5, valve body middle chamber 11, entrance channel 12, outlet flow
13, pressure release runner 6, first flow 61, second flow channel 62, component mounting hole 63, stepped hole 64, pressure release component 7, baffle plate block 71,
Mobile jib 72, spring 73, screw 74.
Embodiment
Power station sluice valve as shown in Figure 1 and Figure 2, including valve body 1, flashboard 2, valve rod 3, bonnet 4 and operating mechanism 5, valve body
It is provided with valve body middle chamber 11, entrance channel 12 and outlet flow 13 in 1, the valve rod 3 is through in bonnet 4, and under valve rod 3
End is stretched into valve body 1 and is connected with flashboard 2, and the upper end of the valve rod 3 passes outside bonnet 4 and is connected with operating mechanism 5, flashboard 2
Pressure release runner 6 is provided with, the entrance of the pressure release runner 6 is connected with valve body middle chamber 11, and the outlet of the pressure release runner 6 is in flashboard
2 connect when closing with outlet flow 13, pressure release component 7 are provided with the pressure release runner 6, pressure release component 7 includes baffle plate block
71st, mobile jib 72, spring 73 and screw 74, the mobile jib 72 it is anterior through in baffle plate block 71, and the rear portion of mobile jib 72 is stretched
Enter and offseted in spring 73 with screw 74, baffle plate block 71 coordinates with pressure release runner 6, the sliding of mobile jib 72 respectively, pressure release runner 6 and screw
74 screw threads coordinate；Pressure release runner 6 includes first flow 61, second flow channel 62 and the component with 61 same axis of first flow
Mounting hole 63；One end of the first flow 61 is arranged to the entrance of pressure release runner 6, and the other end is connected with component mounting hole 63,
And stepped hole 64 is set in junction；The component mounting hole 63 is through to the surface of flashboard 2, the pressure release component by stepped hole 64
7 are installed in component mounting hole 63, and the baffle plate block 71 and stepped hole 64 offset setting, and the screw 74 is disposed in proximity to flashboard
In 2 component mounting hole 63；The entrance of the second flow channel 62 be positioned close at the stepped hole 64 of component mounting hole 63 and with
Baffle plate block 71 is corresponding, and the outlet of second flow channel 62 is arranged to the outlet of pressure release runner 6；Screw 74 is arranged to headless screw.Can
Required pressure size during according to pressure release, it can select coefficient of stiffiness spring 73 of different sizes by changing spring 73, also can adjust
The position of screw 74 is so as to adjusting the decrement of spring 73.
Operation principle is：When the pressure of valve body middle chamber 11 is more than spring force, medium flows into first flow 61, promotes baffle plate
Block 71 moves on mobile jib 72 to the direction of spring 73, and spring 73 compresses, and opens the entrance of second flow channel 62, makes the He of first flow 61
Second flow channel 62 connects, and medium enters the flow inlet and outlet runner 13 of second flow channel 62, the therefore pressure release of valve body middle chamber 11, during opening/shutting valve
Torque reduces.
Claims (4)
1. a kind of power station sluice valve, including valve body, flashboard, valve rod, bonnet and operating mechanism, be provided with valve body valve body middle chamber,
Entrance channel and outlet flow, the valve rod is through in bonnet, and the lower end of valve rod is stretched into valve body and is connected with flashboard, institute
The upper end for stating valve rod passes outside bonnet and is connected with operating mechanism, it is characterised in that：The flashboard is provided with pressure release runner, described
The entrance of pressure release runner is connected with valve body middle chamber, and the outlet of the pressure release runner connects when flashboard is closed with outlet flow, institute
State and pressure release component is installed in pressure release runner.
2. power station sluice valve according to claim 1, it is characterised in that：The pressure release component includes baffle plate block, mobile jib, bullet
Spring and screw, the mobile jib it is anterior through in baffle plate block, and the rear portion of mobile jib is stretched into spring and offseted with screw, described
Baffle plate block coordinates with pressure release runner, mobile jib sliding respectively, and pressure release runner coordinates with screw thread.
3. power station sluice valve according to claim 2, it is characterised in that：The pressure release runner includes first flow, second
Runner and the component mounting hole with the same axis of first flow；One end of the first flow is arranged to entering for pressure release runner
Mouthful, the other end is connected with component mounting hole, and sets stepped hole in junction；The component mounting hole is through to lock by stepped hole
Plate surface, the pressure release component are installed in component mounting hole, and the baffle plate block and stepped hole offset settings, the screw setting
In in the component mounting hole of flashboard；The entrance of the second flow channel be positioned close at the stepped hole of component mounting hole and with
Baffle plate block is corresponding, and the outlet of second flow channel is arranged to the outlet of pressure release runner.
4. the power station sluice valve according to Claims 2 or 3, it is characterised in that：The screw is arranged to headless screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720317010.7U CN206647557U (en) | 2017-03-29 | 2017-03-29 | Power station sluice valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720317010.7U CN206647557U (en) | 2017-03-29 | 2017-03-29 | Power station sluice valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206647557U true CN206647557U (en) | 2017-11-17 |
Family
ID=60278503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720317010.7U Active CN206647557U (en) | 2017-03-29 | 2017-03-29 | Power station sluice valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206647557U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677895A (en) * | 2020-06-18 | 2020-09-18 | 南通国电阀门科技有限公司 | Multi-bypass pressure relief type gate valve of high-pressure forge welding structure for nuclear power |
-
2017
- 2017-03-29 CN CN201720317010.7U patent/CN206647557U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677895A (en) * | 2020-06-18 | 2020-09-18 | 南通国电阀门科技有限公司 | Multi-bypass pressure relief type gate valve of high-pressure forge welding structure for nuclear power |
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