CN210770333U - Sand prevention gate valve - Google Patents
Sand prevention gate valve Download PDFInfo
- Publication number
- CN210770333U CN210770333U CN201921640083.5U CN201921640083U CN210770333U CN 210770333 U CN210770333 U CN 210770333U CN 201921640083 U CN201921640083 U CN 201921640083U CN 210770333 U CN210770333 U CN 210770333U
- Authority
- CN
- China
- Prior art keywords
- valve
- seat
- disk seat
- valve seat
- gate valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000004576 sand Substances 0.000 title claims abstract description 13
- 230000002265 prevention Effects 0.000 title description 2
- 238000007789 sealing Methods 0.000 claims description 13
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- -1 chemical engineering Substances 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Sliding Valves (AREA)
Abstract
The utility model discloses a sand control slide valve, including back disk seat one, back disk seat below is provided with preceding disk seat one, preceding disk seat one side is connected with the flashboard, the flashboard opposite side is connected with preceding disk seat two, preceding disk seat two tops are provided with the back disk seat. The double-valve seat structure has the advantages of simple design, strong adaptability, simple and convenient operation and low maintenance cost, and has high reference value and application value for the design of various high-pressure valves.
Description
Technical Field
The utility model belongs to the cement industry field, concretely relates to sand control slide valve.
Background
The gate valve is one of the most commonly used shut-off valves, and is mainly used for connecting or shutting off a medium in a pipeline and is not used for regulating the flow of the medium. The sand-proof gate valve is a valve with gate plate moving along the perpendicular direction of the central line of medium channel, and can open or cut off the medium in pipeline and control the high-pressure medium to flow as required. Two sealing surfaces of the parallel gate valve are parallel, and a valve seat sealing surface is perpendicular to the center of the pipeline and the flowing direction of the medium, so that the valve has the advantages of good high-pressure sealing performance, small fluid resistance, small opening and closing moment and the like. The sand-proof gate valve is widely applied to the fields of petroleum, chemical engineering, coal mines, electric power and the like. The valve seat is the most important part of the sand control gate valve, is arranged in the valve body and bears high-pressure fluid, valve opening and closing load, vibration, friction and other loads in the working process, and the design of the valve seat structure has important influence on the performance of the sand control gate valve.
Disclosure of Invention
Not enough to prior art exists, the utility model provides a sand control slide valve.
The utility model discloses a realize through following technical scheme:
the utility model provides a sand control slide valve, includes back disk seat one, back disk seat below is provided with preceding disk seat one, preceding disk seat one side is connected with the flashboard, the flashboard opposite side is connected with preceding disk seat two, two tops of preceding disk seat are provided with the back disk seat.
The circumferential surfaces of the rear valve seat and the front valve seat are provided with a fixing ring.
An O-shaped sealing ring is arranged between the end surface of the front valve seat and the end surface of the inner groove of the rear valve seat.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the double-valve-seat sand-prevention gate valve adopts a front-valve sealing structure, so that the defect of sealing after a single-valve-seat valve is effectively overcome, gravel in an oil-gas medium can be effectively prevented from entering the valve body, and the service life of the sand-prevention gate valve is prolonged.
2) The double-valve seat structure has the advantages of simple design, strong adaptability, simple and convenient operation and low maintenance cost, and has high reference value and application value for the design of various high-pressure valves.
3) The double-valve seat sand control gate valve works under rated pressure, when the medium pressure exceeds the rated pressure, the inner valve seat and the outer valve seat can be propped open, gravel in the medium can enter a gap between the inner valve seat and the outer valve seat to damage a sealing surface of the valve seat, so that the sealing failure of the valve is caused, and the service life of the valve is influenced.
Drawings
Fig. 1 is a structural view of the present invention.
In the drawings: 1. a first rear valve seat; 2. a first front valve seat; 3. a shutter plate; 4. a second front valve seat; 5. and a second rear valve seat.
Detailed Description
The utility model provides a sand control slide valve, includes back disk seat 1, 1 below of back disk seat is provided with preceding disk seat 2, 2 sides of preceding disk seat are connected with flashboard 3, 3 opposite sides of flashboard are connected with preceding disk seat two 4, preceding disk seat two 4 tops are provided with back disk seat 5.
The circumferential surfaces of the rear valve seat and the front valve seat are provided with a fixing ring.
An O-shaped sealing ring is arranged between the end surface of the front valve seat and the end surface of the inner groove of the rear valve seat.
When the valve is in a working state, the valve plate hole is concentric with the valve seat and the valve body, fluid is conducted, and oil-gas media can directly enter the downstream from the upstream end of the valve body flow passage. When the valve is in a closed state, the valve plate moves downwards, the valve plate valve channel cuts off fluid media, the valve plate floats towards the right, the inner valve seat and the outer valve seat are extruded by the valve plate, the inner valve seat, the outer valve seat and the valve body are sealed, meanwhile, the inner valve seat and the outer valve seat move relatively under the pressure of upstream oil-gas media, the downstream front valve seat and the outer valve seat are sealed with the valve body (sealing ring structure sealing), and the inner valve seat is sealed with the valve plate (metal and metal sealing).
In summary, the present invention is only a preferred embodiment, and is not intended to limit the scope of the present invention, and all equivalent changes and modifications of the shapes, structures, features and spirit described in the claims of the present invention should be included in the scope of the present invention.
Claims (3)
1. A sand control gate valve which is characterized in that: including back disk seat (1), back disk seat (1) below is provided with preceding disk seat (2), preceding disk seat (2) side is connected with flashboard (3), flashboard (3) opposite side is connected with preceding disk seat two (4), preceding disk seat two (4) top is provided with back disk seat two (5).
2. The sand control gate valve of claim 1, wherein: the circumferential surfaces of the rear valve seat and the front valve seat are provided with a fixing ring.
3. The sand control gate valve of claim 1, wherein: an O-shaped sealing ring is arranged between the end surface of the front valve seat and the end surface of the inner groove of the rear valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921640083.5U CN210770333U (en) | 2019-09-28 | 2019-09-28 | Sand prevention gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921640083.5U CN210770333U (en) | 2019-09-28 | 2019-09-28 | Sand prevention gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210770333U true CN210770333U (en) | 2020-06-16 |
Family
ID=71060348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921640083.5U Expired - Fee Related CN210770333U (en) | 2019-09-28 | 2019-09-28 | Sand prevention gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210770333U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116498760A (en) * | 2023-06-26 | 2023-07-28 | 什邡慧丰采油机械有限责任公司 | Flat valve with combined double-valve-seat precise sealing structure and working method |
-
2019
- 2019-09-28 CN CN201921640083.5U patent/CN210770333U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116498760A (en) * | 2023-06-26 | 2023-07-28 | 什邡慧丰采油机械有限责任公司 | Flat valve with combined double-valve-seat precise sealing structure and working method |
| CN116498760B (en) * | 2023-06-26 | 2023-08-22 | 什邡慧丰采油机械有限责任公司 | Flat valve with combined double-valve-seat precise sealing structure and working method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200616 |