CN203604680U - Flat gate valve easy to open and close - Google Patents
Flat gate valve easy to open and close Download PDFInfo
- Publication number
- CN203604680U CN203604680U CN201320811683.XU CN201320811683U CN203604680U CN 203604680 U CN203604680 U CN 203604680U CN 201320811683 U CN201320811683 U CN 201320811683U CN 203604680 U CN203604680 U CN 203604680U
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- China
- Prior art keywords
- valve
- flashboard
- flow
- cavity
- upstream passageway
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- Expired - Fee Related
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Abstract
The utility model discloses a flat gate valve easy to open and close. The flat gate valve easy to open and close comprises a valve body and a pressure reducing mechanism. A flashboard dividing medium flowing channels into an upstream channel and a downstream channel is arranged in the valve body. The pressure reducing mechanism comprises a flow baffle, two valve seats, a cavity, a lifting rod and a lifting hand wheel. The cavity is fixed onto the part, corresponding to the upstream channel, of the valve body, the two valve seats are symmetrically fixed in the upstream channel, one end of the lifting rod is connected with the flow baffle, the other end of the lifting rod is connected with the lifting hand wheel, the lifting hand wheel is arranged on the cavity and the lifting hand wheel is matched with the lifting rod to enable the flashboard to rise and fall between the cavity and the two valve seats. The flat gate valve easy to open and close can reduce the pressure borne by the flashboard during opening and closing of the gate valve, thereby being more convenient and faster to open and close.
Description
Technical field
The utility model relates to a kind of gate valve, relates in particular to a kind of plate valve that is easy to switching.
Background technique
Gate valve used in existing wellhead for production is mainly to be moved up and down and reached the object that opens or closes MEDIA FLOW circulation passage in valve body by handwheel control flashboard.Gate valve generally comprises valve body, valve seat, valve gap, flashboard, valve rod and transmission handwheel, mainly completes the switching of gate valve by the lifting of transmission handwheel control flashboard.As China Patent No. " 200920119184.8 " discloses a kind of plate valve, its open day is on 03 31st, 2010, and its technological scheme is that described plate valve includes valve body, valve seat, valve rod, flashboard, valve gap and operating device, described valve seat is placed in valve body, described flashboard and valve seat phase snug fit, described valve rod one end is connected with flashboard, and its other end is connected with operating device, and described valve gap and valve body are fixedly connected; The inwall that it is characterized in that described valve channel is provided with a bellows, and this bellows one end is fixedly connected with valve body, and its other end and valve seat are fixedly connected, and described valve seat orders about and flashboard phase snug fit at the elastic force of bellows.
But the prior art take this patent document as representative, in actual use, still exist following defect: one, in the time of the lifting of transmission handwheel control flashboard, because the pressure in upstream passageway in valve body is greater than the pressure in downstream passage, the pressure difference that often makes the each position of flashboard bear, for example, when closing gate valve, flashboard moves downward under the control of transmission handwheel, now be introduced into the pressure flashboard bottom of valve body circulation passage bearing be greater than laggard enter the pressure that bears of the flashboard top of circulation passage, this just causes easily distortion or damage of flashboard.Two, because the pressure in upstream passageway in valve body is greater than the pressure in downstream passage, operator need to firmly rotate transmission handwheel just can complete opening or closing of gate valve, and not only gate valve is difficult for opening and closing, and also causes hand labor intensity large.
Model utility content
The purpose of this utility model is to overcome the above-mentioned problems in the prior art, and a kind of plate valve of opening and closing of being easy to is provided, and the pressure that bears of flashboard when the utility model can reduce gate valve and opens and closes makes the switching light and fast more of gate valve.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of plate valve that is easy to switching, it is characterized in that: comprise valve body and the mechanism of decompressor, in described valve body, be provided with the flashboard that MEDIA FLOW circulation passage is divided into upstream passageway and downstream passage, the described mechanism of decompressor comprises flow-stopping plate, two valve seats, cavity, lifting arm and lifting handwheel, described cavity is fixed on the valve body of corresponding upstream passageway, described two valve seat symmetries are fixed in upstream passageway, one end of described lifting arm is connected with flow-stopping plate, the other end is connected with lifting handwheel, described lifting handwheel is arranged on cavity, described lifting handwheel coordinates with lifting arm moves up and down flashboard between chamber and two valve seats.
Described flow-stopping plate and upstream passageway are perpendicular, and the angles of the baffle face of flow-stopping plate and the cross section of upstream passageway formation 5-15 degree.
The external diameter of described flow-stopping plate is greater than the radius of upstream passageway, and is less than the diameter of upstream passageway.
On described cavity, be provided with seal gease inlet.
Employing the utility model has the advantage of:
One, in the utility model, by the flow-stopping plate in the mechanism of decompressor, can stop the circulation of medium in valve body circulation passage, fluid between flow-stopping plate and flashboard is reduced, thereby reduce the pressure of fluid to flashboard, not only make operator can open easily fast gate valve, the pressure that also makes the each position of gate valve bear is more even, can either prevent flashboard distortion, the working life that is conducive to again improve flashboard.
Two, in the utility model, described flow-stopping plate and upstream passageway are perpendicular, and the baffle face of flow-stopping plate and the cross section of upstream passageway form the angle of 5-15 degree, this structure has reduced the impact force of fluid to flow-stopping plate, makes operator can stop rapidly the fluid in circulation passage by promoting handwheel.
Three, in the utility model, the external diameter of described flow-stopping plate is greater than the radius of upstream passageway, and be less than the diameter of upstream passageway, be gapped between flow-stopping plate and circulation passage inwall, this structure makes flow-stopping plate can stop most of fluid, both be convenient to the fast lifting of flow-stopping plate, and can have significantly reduced again the pressure of fluid to flashboard, and made the switching of flashboard convenient.
Four, in the utility model, on described cavity, be provided with seal gease inlet, in cavity, inject seal gease by seal gease inlet, can prevent that the fluid in circulation passage from overflowing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Being labeled as in figure: 1, valve body, 2, flashboard, 3, upstream passageway, 4, downstream passage, 5, flow-stopping plate, 6, valve seat, 7, cavity, 8, lifting arm, 9, promote handwheel, 10, seal gease inlet.
Embodiment
A kind of plate valve that is easy to switching, comprise valve body 1 and the mechanism of decompressor, in described valve body 1, be provided with the flashboard 2 that MEDIA FLOW circulation passage is divided into upstream passageway 3 and downstream passage 4, the described mechanism of decompressor comprises flow-stopping plate 5, two valve seats 6, cavity 7, lifting arm 8 and lifting handwheel 9, described cavity 7 is fixed on the valve body 1 of corresponding upstream passageway 3, described two valve seat 6 symmetries are fixed in upstream passageway 3, one end of described lifting arm 8 is connected with flow-stopping plate 5, the other end is connected with lifting handwheel 9, described lifting handwheel 9 is arranged on cavity 7, described lifting handwheel 9 coordinates with lifting arm 8 moves up and down flashboard 2 between chamber and two valve seats 6.
In the utility model, described flow-stopping plate 5 preferred vertical are inserted in upstream passageway 3, and when flow-stopping plate 5 inserts upstream passageway 3, the baffle face of flow-stopping plate 5 and the cross section of upstream passageway 3 form the angle of 5-15 degree, to reduce the impact force of fluid to flow-stopping plate 5, flow-stopping plate 5 can be inserted in upstream passageway 3 comparatively like a cork.Further, the external diameter of described flow-stopping plate 5 is greater than the radius of upstream passageway 3, and is less than the diameter of upstream passageway 3, and this mechanism of decompressor does not need to block completely upstream passageway 3, only need to, in the time opening and closing gate valve, reduce the pressure of fluid to flashboard 2.
In the utility model, on described cavity 7, be provided with seal gease inlet 10, to prevent that the fluid in circulation passage overflows in the time that flow-stopping plate 5 is risen.
Claims (4)
1. one kind is easy to the plate valve opening and closing, it is characterized in that: comprise valve body (1) and the mechanism of decompressor, in described valve body (1), be provided with the flashboard (2) that MEDIA FLOW circulation passage is divided into upstream passageway (3) and downstream passage (4), the described mechanism of decompressor comprises flow-stopping plate (5), two valve seats (6), cavity (7), lifting arm (8) and lifting handwheel (9), described cavity (7) is fixed on the valve body (1) of corresponding upstream passageway (3), described two valve seats (6) symmetry is fixed in upstream passageway (3), one end of described lifting arm (8) is connected with flow-stopping plate (5), the other end is connected with lifting handwheel (9), described lifting handwheel (9) is arranged on cavity (7), described lifting handwheel (9) coordinates with lifting arm (8) moves up and down flashboard (2) between chamber and two valve seats (6).
2. the plate valve that is easy to switching as claimed in claim 1, it is characterized in that: described flow-stopping plate (5) is perpendicular with upstream passageway (3), and the cross section of the baffle face of flow-stopping plate (5) and upstream passageway (3) forms the angles of 5-15 degree.
3. the plate valve that is easy to switching as claimed in claim 1 or 2, is characterized in that: the external diameter of described flow-stopping plate (5) is greater than the radius of upstream passageway (3), and is less than the diameter of upstream passageway (3).
4. the plate valve that is easy to switching as claimed in claim 1, is characterized in that: on described cavity (7), be provided with seal gease inlet (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320811683.XU CN203604680U (en) | 2013-12-11 | 2013-12-11 | Flat gate valve easy to open and close |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320811683.XU CN203604680U (en) | 2013-12-11 | 2013-12-11 | Flat gate valve easy to open and close |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203604680U true CN203604680U (en) | 2014-05-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320811683.XU Expired - Fee Related CN203604680U (en) | 2013-12-11 | 2013-12-11 | Flat gate valve easy to open and close |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203604680U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821954A (en) * | 2013-12-11 | 2014-05-28 | 德阳市迪信佳阀门制造有限公司 | Flat gate valve easy to open and close |
-
2013
- 2013-12-11 CN CN201320811683.XU patent/CN203604680U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821954A (en) * | 2013-12-11 | 2014-05-28 | 德阳市迪信佳阀门制造有限公司 | Flat gate valve easy to open and close |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140521 Termination date: 20181211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |