CN215980932U - Reinforced sealing valve seat of welded ball valve - Google Patents
Reinforced sealing valve seat of welded ball valve Download PDFInfo
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- CN215980932U CN215980932U CN202122605732.1U CN202122605732U CN215980932U CN 215980932 U CN215980932 U CN 215980932U CN 202122605732 U CN202122605732 U CN 202122605732U CN 215980932 U CN215980932 U CN 215980932U
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Abstract
The utility model provides a reinforced sealing valve seat of a welded ball valve, which comprises a valve seat, a sealing ring and an O-shaped sealing ring; the sealing ring is embedded on the valve seat, the sealing ring is an inclined surface sealing ring, and the inclined surface of the sealing ring is far away from the valve seat; the inclined plane of the sealing ring is formed by connecting two end cambered surfaces and a middle corrugated surface; and an O-shaped sealing ring is arranged between the sealing ring and the valve seat. The inclined plane of the upper sealing ring of the valve seat is formed by connecting two end cambered surfaces and a middle corrugated curved surface, a multi-sealing structure is formed at the sealing position, and the sealing performance of the valve is improved; the interference magnitude of the matching of the valve seat and the ball body can meet the sealing effect under the condition of small magnitude, the sealing section area is small, and the valve operating torque is small; the O-shaped sealing ring is additionally arranged on the connecting surface of the valve seat and the sealing ring, when a medium passes through the ball valve, the ball extrudes the sealing ring to cause deformation, and the contact surface of the sealing ring and the O-shaped sealing ring is increased, so that the sealing performance is improved.
Description
Technical Field
The utility model belongs to the technical field of valve sealing, and particularly relates to a reinforced sealing valve seat of a welded ball valve.
Background
The welded ball valve is widely used in various fields, and is applied to various pipeline equipment such as urban gas, urban heat supply, petrochemical industry, shipbuilding, steel and iron, pressure regulating stations, power plants and the like. The inclined plane of the sealing structure on the valve seat of the existing welded ball valve is a plane, the sealing section area is large, and the operating torque of the valve is large; when the medium passes through the ball valve, the ball extrudes the sealing ring to cause deformation, and the sealing ring does not have extra sealing structure to enhance the sealing performance with the valve seat contact surface, so that the internal leakage condition is easily caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides a reinforced sealing valve seat of a welded ball valve, which improves the sealing performance of the valve, and has small sealing section area and small valve operating torque.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a reinforced sealing valve seat of a welded ball valve, which comprises a valve seat, a sealing ring and an O-shaped sealing ring; the sealing ring is embedded on the valve seat, the sealing ring is an inclined surface sealing ring, and the inclined surface of the sealing ring is far away from the valve seat; the inclined plane of the sealing ring is formed by connecting two end cambered surfaces and a middle corrugated surface; and an O-shaped sealing ring is arranged between the sealing ring and the valve seat.
Preferably, the O-ring is disposed in a groove on the seal ring.
The utility model has the following beneficial effects:
according to the reinforced sealing valve seat of the welded ball valve, the inclined plane of the sealing ring on the valve seat is formed by connecting the cambered surfaces at the two ends and the corrugated curved surface in the middle, a plurality of sealing structures are formed at the sealing position, and the sealing performance of the valve is improved; the interference magnitude of the matching of the valve seat and the ball body can meet the sealing effect under the condition of small magnitude, the sealing section area is small, and the valve operating torque is small; the O-shaped sealing ring is additionally arranged on the connecting surface of the valve seat and the sealing ring, when a medium passes through the ball valve, the ball extrudes the sealing ring to cause deformation, and the contact surface of the sealing ring and the O-shaped sealing ring is increased, so that the sealing performance is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is apparent that the drawings in the following description are only some embodiments of the present invention.
FIG. 1 is a front view of a reinforced seal seat for a welded ball valve according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is an enlarged view of a portion B in fig. 2.
Description of reference numerals:
1. a seal ring seat; 2. a seal ring; 21. a cambered surface; 22. a corrugated surface; and 3. O-shaped sealing rings.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The embodiment provides a reinforced sealing valve seat of a welded ball valve, as shown in fig. 1 to 3, comprising a valve seat 1, a sealing ring 2 and an O-shaped sealing ring 3; the sealing ring 2 is embedded on the valve seat 1, the sealing ring 2 is an inclined plane sealing ring, and the inclined plane of the sealing ring 2 is far away from the valve seat 1; the inclined plane of the sealing ring 2 is formed by connecting two end cambered surfaces 21 and a middle corrugated curved surface 22, a multi-sealing structure is formed at the sealing position, and the sealing performance of the valve is improved; the interference magnitude of the matching of the valve seat and the ball body can meet the sealing effect under the condition of small magnitude, the sealing section area is small, and the valve operating torque is small; an O-shaped sealing ring 3 is arranged between the sealing ring 2 and the valve seat 1, the O-shaped sealing ring 3 is arranged in a groove in the sealing ring 2, when a medium passes through the ball valve, the ball extrudes the sealing ring 2 to cause deformation, and the contact surface between the sealing ring 2 and the O-shaped sealing ring 3 is increased, so that the sealing performance is improved.
According to the technical scheme, the reinforced sealing valve seat of the welded ball valve provided by the embodiment has the advantages that the inclined plane of the sealing ring on the valve seat is formed by connecting the cambered surfaces at the two ends and the corrugated curved surface in the middle, a plurality of sealing structures are formed at the sealing position, and the sealing performance of the valve is improved; the interference magnitude of the matching of the valve seat and the ball body can meet the sealing effect under the condition of small magnitude, the sealing section area is small, and the valve operating torque is small; the O-shaped sealing ring is additionally arranged on the connecting surface of the valve seat and the sealing ring, when a medium passes through the ball valve, the ball extrudes the sealing ring to cause deformation, and the contact surface of the sealing ring and the O-shaped sealing ring is increased, so that the sealing performance is improved.
The embodiments of the present invention have been described in detail through the embodiments, but the description is only exemplary of the embodiments of the present invention and should not be construed as limiting the scope of the embodiments of the present invention. The scope of protection of the embodiments of the utility model is defined by the claims. In the present invention, the technical solutions described in the embodiments of the present invention or those skilled in the art, based on the teachings of the embodiments of the present invention, design similar technical solutions to achieve the above technical effects within the spirit and the protection scope of the embodiments of the present invention, or equivalent changes and modifications made to the application scope, etc., should still fall within the protection scope covered by the patent of the embodiments of the present invention.
Claims (2)
1. A reinforced sealing valve seat of a welded ball valve is characterized by comprising a valve seat (1), a sealing ring (2) and an O-shaped sealing ring (3); the sealing ring (2) is embedded on the valve seat (1), the sealing ring (2) is an inclined surface sealing ring, and the inclined surface of the sealing ring (2) is far away from the valve seat (1); the inclined plane of the sealing ring (2) is formed by connecting two end cambered surfaces (21) with a middle corrugated curved surface (22); an O-shaped sealing ring (3) is arranged between the sealing ring (2) and the valve seat (1).
2. A reinforced sealing seat for a welded ball valve according to claim 1, characterized in that the O-ring (3) is arranged in a groove in the sealing ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122605732.1U CN215980932U (en) | 2021-10-28 | 2021-10-28 | Reinforced sealing valve seat of welded ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122605732.1U CN215980932U (en) | 2021-10-28 | 2021-10-28 | Reinforced sealing valve seat of welded ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215980932U true CN215980932U (en) | 2022-03-08 |
Family
ID=80511288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122605732.1U Active CN215980932U (en) | 2021-10-28 | 2021-10-28 | Reinforced sealing valve seat of welded ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215980932U (en) |
-
2021
- 2021-10-28 CN CN202122605732.1U patent/CN215980932U/en active Active
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