CN217272022U - Valve suitable for shale gas contains sand medium - Google Patents
Valve suitable for shale gas contains sand medium Download PDFInfo
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- CN217272022U CN217272022U CN202221114462.2U CN202221114462U CN217272022U CN 217272022 U CN217272022 U CN 217272022U CN 202221114462 U CN202221114462 U CN 202221114462U CN 217272022 U CN217272022 U CN 217272022U
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- valve
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- valve core
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Abstract
The valve suitable for the shale gas sand-containing medium comprises a valve rod and a shell, a valve sleeve is arranged between the valve rod and the shell, a valve core is arranged at the bottom of the valve rod, a channel is arranged in the valve core, a valve seat is arranged in the shell, the inner diameter of the valve seat is in clearance fit with the outer diameter of the valve core, and the upper surface of the valve seat is higher than the bottom of the channel. By adopting the valve suitable for the shale gas sand-containing medium, the valve core channel is partially shielded by the valve seat, the flow cross section of the channel is reduced, the flow is reduced, solid particles, particularly larger particles, can be greatly reduced to directly impact the valve core, and the surface damage is reduced; meanwhile, as the valve core channel is lower than the valve seat, when the valve is closed, the valve can be closed as long as the valve core moves downwards to enable the channel to be completely blocked by the valve seat, and the damage caused by mutual extrusion and collision between the valve core and the valve seat is avoided.
Description
Technical Field
The utility model belongs to the technical field of machinery, a valve technique is related to, concretely relates to valve suitable for shale gas contains sand medium.
Background
Under the shale gas operating mode, the medium carries a large amount of solid sand for the gas-liquid mixture and flows out, and conventional valve adopts the metal material will wear out the inefficacy in this kind of operating mode short time. The valve core and the valve seat are made of ceramic materials, so that the valve core and the valve seat have better wear resistance, but the ceramic materials are very brittle, and the surface damage is easy to occur after the valve core and the valve seat are directly impacted by solid sand particles; meanwhile, the conventional valve structure adopts a ceramic valve core and valve seat, when the valve is closed, the valve core and the valve seat are directly and tightly attached and sealed in a large area, and the fault of extrusion and brittle fracture often occurs.
SUMMERY OF THE UTILITY MODEL
For overcoming the technical defect that prior art exists, the utility model discloses a valve suitable for shale gas contains sand medium.
Valve suitable for shale gas contains sand medium, including valve rod and casing, be provided with the valve barrel between valve rod and the casing, the valve rod bottom is provided with the case, is provided with the passageway in the case, be provided with the disk seat in the casing, the disk seat internal diameter with case external diameter clearance fit, the disk seat upper surface height is higher than the passageway bottom.
Preferably, the valve seat and the valve core are made of ceramic materials.
Preferably, the valve stem comprises a drive means, the drive means being a pneumatic cylinder.
By adopting the valve suitable for the shale gas sand-containing medium, the valve core channel is partially shielded by the valve seat, the flow cross section of the channel is reduced, the flow is reduced, solid particles, especially larger particles, can be greatly reduced to directly impact the valve core, and the surface damage is reduced; meanwhile, as the valve core channel is lower than the valve seat, when the valve is closed, the valve can be closed as long as the valve core moves downwards to enable the channel to be completely blocked by the valve seat, and the damage caused by mutual extrusion and collision between the valve core and the valve seat is avoided.
Drawings
Fig. 1 is a schematic view of an embodiment of the valve for shale gas containing sand medium according to the present invention;
the reference numbers in the figures refer to: 1-valve rod, 2-shell, 3-valve sleeve, 4-valve seat, 5-valve core and 6-channel.
Detailed Description
The following describes the present invention in further detail with reference to the accompanying drawings.
Valve suitable for shale gas contains sand medium, including valve rod 1 and casing 2, be provided with valve barrel 3 between valve rod 1 and the casing 2, the valve rod bottom is provided with case 5, is provided with passageway 6 in the case, be provided with disk seat 4 in the casing 2, the disk seat internal diameter with case external diameter clearance fit, the disk seat upper surface height is higher than the passageway bottom.
As shown in fig. 1, when the valve is opened, the channel between the valve core 5 and the valve seat 4 is not completely shielded by the valve seat 4, the medium to be transmitted is transmitted through the space above the valve seat and the channel 6, because the height of the upper surface of the valve seat is higher than the bottom of the channel, the channel 6 is partially shielded, the opening area of the joint of the channel and the valve seat is reduced, the flow cross section of the channel is reduced, the flow rate is reduced, the flow direction is changed, the speed is reduced, solid particles, particularly larger particles, can be greatly reduced, the surface of the valve core is directly impacted, and the surface damage is reduced.
Meanwhile, when the valve is closed, because the inner diameter of the valve seat 4 is in clearance fit with the outer diameter of the valve core 5, the valve core 5 can move up and down in the valve seat 4 along the vertical direction, the valve can be closed only by moving the valve core down to enable the channel to be completely blocked by the valve seat, and compared with the existing valve which is closed by large-area extrusion of the valve core and the valve seat, the valve is prevented from being damaged due to mutual extrusion collision between the valve core and the valve seat. The valve rod 1 can move up and down freely in the valve sleeve 3, and the valve core 5 can move by means of a driving device connected with the valve rod, such as an air cylinder.
For the position control of the valve rod, the valve rod can be controlled to limit and keep at a proper position by arranging movable limiting components such as movable blocking sheets and the like on the valve rod and the valve sleeve which are matched with each other, so that the valve is in an opening or closing state.
In a specific embodiment, the valve seat and the valve core are made of ceramic materials, so that the wear resistance of the valve core and the valve seat can be improved.
Adopt the valve suitable for shale gas contains sand medium has following superiority:
the valve core channel is partially shielded by the valve seat, the flow cross section of the channel is reduced, the flow is reduced, solid particles, particularly larger particles, can be greatly reduced to directly impact the valve core, and the surface damage is reduced;
and secondly, as the valve core channel is lower than the valve seat, when the valve is closed, the valve can be closed as long as the valve core moves downwards to enable the channel to be completely blocked by the valve seat, so that the damage caused by mutual extrusion and collision between the valve core and the valve seat is avoided.
In the foregoing, the preferred embodiments of the present invention, if not obviously contradictory or based on a certain preferred embodiment, can be combined and used by any superposition, the specific parameters in the embodiments and examples are only for the purpose of clearly expressing the verification process of the utility model, and are not used to limit the patent protection scope of the present invention, which is still based on the claims, and all the equivalent structural changes made by the contents of the specification and the drawings of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The valve suitable for the sand-containing medium in the shale gas comprises a valve rod (1) and a shell (2), wherein a valve sleeve (3) is arranged between the valve rod (1) and the shell (2), and is characterized in that a valve core (5) is arranged at the bottom of the valve rod (1), a channel (6) is arranged in the valve core, a valve seat (4) is arranged in the shell (2), the inner diameter of the valve seat is in clearance fit with the outer diameter of the valve core, and the height of the upper surface of the valve seat (4) is higher than that of the bottom of the channel (6).
2. The valve of claim 1, wherein the valve seat and the valve core are made of ceramic.
3. The valve for shale gas sand media of claim 1, wherein the valve stem (1) comprises an actuating means, and the actuating means is a pneumatic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221114462.2U CN217272022U (en) | 2022-05-11 | 2022-05-11 | Valve suitable for shale gas contains sand medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221114462.2U CN217272022U (en) | 2022-05-11 | 2022-05-11 | Valve suitable for shale gas contains sand medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217272022U true CN217272022U (en) | 2022-08-23 |
Family
ID=82885258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221114462.2U Active CN217272022U (en) | 2022-05-11 | 2022-05-11 | Valve suitable for shale gas contains sand medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217272022U (en) |
-
2022
- 2022-05-11 CN CN202221114462.2U patent/CN217272022U/en active Active
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