CN207527080U - Oblique flap valve built in a kind of high pressure - Google Patents
Oblique flap valve built in a kind of high pressure Download PDFInfo
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- CN207527080U CN207527080U CN201721450792.8U CN201721450792U CN207527080U CN 207527080 U CN207527080 U CN 207527080U CN 201721450792 U CN201721450792 U CN 201721450792U CN 207527080 U CN207527080 U CN 207527080U
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Abstract
The application belongs to valve field, and in particular to oblique flap valve built in a kind of high pressure.Oblique flap valve built in a kind of high pressure, wherein, including valve body, wherein valve body is hollow cavity, and liquid is flowed through from valve body, flap is arranged on valve inner, and flap is in the closure state, is inclined in the runner of valve body, and realizes the sealing to runner, flap is fixed on by axis pin and pin on the inner wall of valve body, and flap can be rotated around axis pin.The effect of the application is：The application can ensure that check-valves opening angle is larger, inlet and outlet pressure loss is small, flow resistance coefficient is small, discharge coefficient is big, energy loss is low, avoid the problems such as backhand and shock.
Description
Technical field
The application belongs to valve field, and in particular to oblique flap valve built in a kind of high pressure.
Background technology
The shock of check-valves, water hammer often occur.When the valve is closed, due to before medium is flow backwards, valve
Flap does not reach closed position and causes to hit；When valve opening, since the flap amplitude of oscillation is excessive, accelerating travel is long, also can
It causes to hit valve body.Tiltedly flap valve effectively overcomes swing check valve, lift check valve generates under this operating mode
It hits, water hammer, since the range ability of flap is very short, seating position can be reached rapidly, so as to subtract to greatest extent
Small impingement phenomenon, and act gently, effectively realize its sealing and holding function.Slope clack tilting no-return valve is suitable for preventing
The horizontally or vertically reverse flow of fluids on pipeline, in vertical duct or the horizontal pipeline to any angle of inclination between vertical.
Petrochemical industry adds the severity of hydrogen operating mode, and the housing leak source that is not allow for leaking need to be built-in structure, conventional oblique flap valve
It is external since structure limits, oblique flap-type structure built in this kind is developed by innovation.
Invention content
The purpose of the utility model is oblique flap valve built in one kind to be realized, realizes that valve body leaks without any built in axis pin
Leak source greatly improves the overall performance of valve, is more suitable for the operating mode for adding hydrogen, LNG, nuclear power etc. harsh.
Invention content：Oblique flap valve built in a kind of high pressure, wherein, including valve body, wherein valve body is hollow cavity, liquid
Body is flowed through from valve body, and flap is arranged on valve inner, and flap is in the closure state, is inclined in the runner of valve body, and
Realize the sealing to runner, flap is fixed on by axis pin and pin on the inner wall of valve body, and flap can be rotated around axis pin.
Oblique flap valve built in a kind of high pressure as described above, wherein, flap in the closure state, central shaft with
The angle of horizontal plane is 45 °.
Oblique flap valve built in a kind of high pressure as described above, wherein, setting axis pin, pin, straight pin, rocking bar in valve body
Frame, baffle, wherein baffle are fixed on by straight pin on body wall, and rocking bar frame is set on baffle, axis pin is set on rocking bar frame
And pin.
Oblique flap valve built in a kind of high pressure as described above, wherein, top end of the valve body setting valve deck, sealing ring, washer,
Pendant collet.
The effect of the application is：The application can ensure check-valves as built-in oblique flap-type, and opening angle is larger, inlet and outlet
The pressure loss is small, flow resistance coefficient is small, discharge coefficient is big, energy loss is low, avoids the problems such as backhand and shock.
Description of the drawings
Fig. 1 is the structure diagram of built-in oblique flap valve.
In figure：1. valve body；2. flap；3. axis pin；4. pin；5. straight pin；6. rocking bar frame；7. baffle；8. valve deck；9. sealing
Circle；10. washer；11. pendant collet；12. cover board；13. stud；14. nut；15. screw.
Specific embodiment
As shown in Figure 1, oblique flap valve built in a kind of high pressure, by valve body, valve seat, axis pin, flap, rocking bar frame, valve
The part such as lid, sealing ring, pendant collet forms.Oblique flap valve is made of cylindrical shell and unitary rotation disk flap.Pivot
Axle position deviates valve body and valve seat plane in flap side.This structure enables flap to carry out pendulum model movement.Seal form is cone
Face and ball face sealing, valve seat and flap are all not in friction or sliding contact during combining and detaching.Valve seat, flap and pivot
A totality is formed, is fixed on valve body import side, its sealing and acting characteristic are realized by this structure.
Its operation principle is：The principal element that oblique flap valve opens and closes depends on the pressure of valve entrance end
Difference.When import end pressure is more than the pressure of the port of export, flap is opened, and open degree is determined by the size of pressure differential.When going out
When mouth end pressure is more than import end pressure, flap is closed.When fluid on the left of valve in fluid thrust by runner inflow valve body, making
Under, portion's inclination flip including unitary rotation disk flap, runner becomes larger, and stream is rented coefficient and is gradually reduced, and flow gradually increases
Greatly；When fluid stops flowing, the unitary rotation disk flap overturn can be closed in the case where its partical gravity is acted on and being fallen；Valve
Seat is in tilted layout in valve inner.The application can ensure that check-valves opening angle is larger, inlet and outlet pressure loses small, flow resistance coefficient
It is small, discharge coefficient is big, energy loss is low, avoid backhand and hit the problems such as.
Its assemble sequence is：1) valve seat is put into inclined valve body, and using welding and valve body firm welding；2) by flap
Rack-mounted with integral with rocking bar, and after being fixed with axis pin connection, whole to be packed into valve body, rocking bar frame and valve body are cast one convex
Platform plane is close to, and installs fix tightly on valve body boss using bolt with after finger setting；3) install again valve body middle chamber valve deck,
Sealing ring, pendant collet etc., last hanging bolt tense.
Compared with prior art, feature is：
The through-type valve body structure design of 1 high inclination-angle
Using the through-type valve body structure of high inclination-angle, valve body is designed using 45 ° of high inclination-angles, and valve body middle chamber is at 45 ° with seat ring
Angle design not only substantially increases the trafficability performance of valve, more improves the operating characteristic of valve performance, inverse relative to tradition
Only 5 ° of inclination angle designs of valve, the through-type initial sealing for being capable of providing bigger of the high inclination-angle to generate very low pressure drop, and increase than pressure
Add the sealing performance of valve.In addition, 45 ° of inclination angle designs can also reduce the stroke during flap open and close, accelerate valve and open
It opens, closing velocity, is advantageously implemented the requirement of valve rapid-closing.The center of gravity of flap component is allowed to rotate to valve seat, therefore valve
The weight of valve always acts on valve seat, is allowed to always closely be combined with valve seat.
2. valve body middle chamber head is inclined to two different angles with valve seat.
45 DEG C of seat angle degree, valve body middle chamber head is not to tilt same angle, but uses and tilt different angles
It is 65 DEG C to spend, and does so the height that can not only substantially reduce valve body, can also reduce valve body head size, then ensures performance not
Under the premise of reduction, the effect of cost can be reduced well.
The oblique flap-type structure of axis pin built in 3..
Conventional swing check valve generally use directly plays pin shaft hole gasket on valve body and plug screw forms the shape of sealing
Formula；The built-in oblique flap valve of axis pin casts a boss at valve body middle chamber, and with tilting lumen into plumbness, then lead to
Crossing increases a rocking bar frame structure, is linked into an integrated entity with axis pin and flap, then by bolt that rocking bar frame is fixed in casting
Boss on, pin shaft structure built in formation, and then fundamentally prevent to leak outside caused by pivot structure.
Claims (4)
1. a kind of oblique flap valve built in high pressure, it is characterised in that：Including valve body (1), wherein valve body (1) is hollow cavity,
Liquid is flowed through from valve body (1), and flap (2) is arranged on valve body (1) inside, and flap (2) is in the closure state, is inclined in valve
In the runner of body (1), and realize the sealing to runner, flap (2) is fixed on the inner wall of valve body (1) by axis pin (3) and pin (4)
On, and flap (2) can be rotated around axis pin (3).
2. oblique flap valve built in a kind of high pressure as described in claim 1, it is characterised in that：Flap (2) is in closed form
During state, the angle of central shaft and horizontal plane is 45 °.
3. oblique flap valve built in a kind of high pressure as claimed in claim 2, it is characterised in that：Setting axis pin in valve body (1)
(3), (4), straight pin (5), rocking bar frame (6), baffle (7) are sold, wherein baffle (7) is fixed on valve body (1) side by straight pin (5)
On wall, rocking bar frame (6) on baffle (7) is set, axis pin (3) and pin (4) are set on rocking bar frame (6).
4. oblique flap valve built in a kind of high pressure as claimed in claim 3, it is characterised in that：Valve body (1) top sets valve
Cover (8), sealing ring (9), washer (10), pendant collet (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721450792.8U CN207527080U (en) | 2017-11-03 | 2017-11-03 | Oblique flap valve built in a kind of high pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721450792.8U CN207527080U (en) | 2017-11-03 | 2017-11-03 | Oblique flap valve built in a kind of high pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207527080U true CN207527080U (en) | 2018-06-22 |
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ID=62572111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721450792.8U Active CN207527080U (en) | 2017-11-03 | 2017-11-03 | Oblique flap valve built in a kind of high pressure |
Country Status (1)
| Country | Link |
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| CN (1) | CN207527080U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751438A (en) * | 2017-11-03 | 2019-05-14 | 中核苏阀科技实业股份有限公司 | Oblique flap valve built in a kind of high pressure |
| CN109764164A (en) * | 2019-01-31 | 2019-05-17 | 苏州纽威阀门股份有限公司 | A kind of oblique flap valve |
-
2017
- 2017-11-03 CN CN201721450792.8U patent/CN207527080U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751438A (en) * | 2017-11-03 | 2019-05-14 | 中核苏阀科技实业股份有限公司 | Oblique flap valve built in a kind of high pressure |
| CN109764164A (en) * | 2019-01-31 | 2019-05-17 | 苏州纽威阀门股份有限公司 | A kind of oblique flap valve |
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