CN212986108U - Ball valve of pressure relief instrument - Google Patents
Ball valve of pressure relief instrument Download PDFInfo
- Publication number
- CN212986108U CN212986108U CN202021517349.XU CN202021517349U CN212986108U CN 212986108 U CN212986108 U CN 212986108U CN 202021517349 U CN202021517349 U CN 202021517349U CN 212986108 U CN212986108 U CN 212986108U
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- valve
- ball
- pressure relief
- valve rod
- ball valve
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Abstract
The utility model discloses a pressure relief instrument ball valve, which comprises a valve body, a valve rod and a ball body; the valve rod is arranged in the valve body; the ball body is arranged at the lower end part of the valve rod; a filler, a filler pressure pad, a disc spring and a combining cap are sequentially arranged above the ball body and upward around the circumferential direction of the valve rod; an adjusting bolt is arranged on the upper part of the parallel cap and on the outer circumference of the valve rod; the adjusting bolt extrudes the disc spring through adjustment to adjust the size of a cavity space formed in the center and the displacement of the ball body in the vertical direction; and a pressure relief hole extending to the bottom in the valve body is arranged below the ball body. The utility model effectively solves the problem of pressure relief of the ball valve of the 3000PSI instrument; and the structure improvement is with low costs, can not cause the problem that the ball valve revealed, guarantees the ball valve leakproofness.
Description
Technical Field
The utility model belongs to the technical field of the ball valve and specifically relates to a pressure release instrument ball valve.
Background
The instrument valve is a pipeline accessory, and is a device for changing the section of a channel and the flowing direction of a medium and controlling the flowing of a conveying medium. In an instrument valve, especially in an instrument ball valve, a part of residual media exist in a valve middle cavity after long-term operation, and the media can cause gasification or abnormal boosting along with the change of temperature in the normal operation process of the ball valve, so that the safety of the ball valve in conveying liquid media is influenced, the middle cavity of the valve is generally required to be subjected to pressure relief treatment, the conventional pressure relief mode is generally provided with a safety valve, although the effect is good, the cost is higher and the structure is complex, in addition, the spring pretightening force can be added to the valve seat sealing assembly, when the pressure rise is greater than the pretightening force, the valve seat sealing assembly is pushed to perform pressure relief, and the conventional 3000PSI ball valve is particularly subjected to poor sealing effect easily, and the valve leakage condition occurs.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to solve the problem that prior art exists, the utility model provides a pressure release instrument ball valve has solved the problem that instrument ball valve pressure release and leakproofness compromise.
The technical scheme is as follows: in order to achieve the above purpose, the utility model can adopt the following technical proposal:
a pressure relief instrument ball valve comprises a valve body, a valve rod and a ball body; the valve rod is arranged in the valve body; the ball body is arranged at the lower end part of the valve rod; a filler, a filler pressure pad, a disc spring and a combining cap are sequentially arranged above the ball body and upward around the circumferential direction of the valve rod; an adjusting bolt is arranged on the upper part of the parallel cap and on the outer circumference of the valve rod; the adjusting bolt extrudes the disc spring through adjustment to adjust the size of a cavity space formed in the center and the displacement of the ball body in the vertical direction; and a pressure relief hole extending to the bottom in the valve body is arranged below the ball body.
Furthermore, the upper end of the valve rod is fixedly connected with a valve rod handle through a locking bolt.
Furthermore, the valve rod handle is of a T-shaped structure and is made of nylon materials.
Further, the filler is made of PCTFE.
Furthermore, the disc spring is formed by overlapping a plurality of disc springs.
Furthermore, the pressure relief hole is of a cylindrical channel type structure.
Has the advantages that: the utility model has the advantages of it is following:
1) the problem of 3000PSI instrument ball valve pressure release has effectively been solved.
2) The structure improvement is with low costs, can not cause the problem that the ball valve was revealed, guarantees the ball valve leakproofness.
Drawings
Figure 1 is the utility model discloses pressure release instrument ball valve structure sketch map.
Detailed Description
Referring to fig. 1, the utility model discloses a pressure relief instrument ball valve, which comprises a valve body 1, a valve rod 2 and a ball body 3; the valve rod 2 is arranged in the valve body 1; the ball body 3 is arranged at the lower end part of the valve rod 2; a filler 5, a filler pressure pad 6, a disc spring 7 and a combining cap 8 are sequentially arranged above the ball body 3 and upward around the valve rod 2 in the circumferential direction; an adjusting bolt 9 is arranged on the outer periphery of the valve rod 2 and above the combining cap 8; the adjusting bolt 9 is used for adjusting the size of a cavity space formed in the center and the displacement of the ball body 3 in the vertical direction by adjusting and extruding the disc spring 7; a pressure relief hole 31 extending to the bottom in the valve body 1 is arranged below the ball body 3.
The upper end of the valve rod 2 is fixedly connected with a valve rod handle 4 through a locking bolt 2; the valve rod handle 4 is of a T-shaped structure and is made of nylon; the filler 5 is made of PCTFE; the disc spring 7 is formed by overlapping a plurality of disc springs; the pressure relief hole 31 is a cylindrical channel-type structure.
The working process is as follows:
the utility model relates to a pressure relief instrument ball valve, which extrudes a disc spring 7 to realize the adjustment of the size of a cavity space formed by the center and the displacement of a ball body 3 in the vertical direction through the adjustment of an adjusting bolt 9; the pressure relief hole 31 extending to the bottom in the valve body 1 is arranged below the ball body 3; when spheroid 3 moves up, 1 bottom of valve body is kept away from to pressure release hole 31 bottom to with cavity space intercommunication, when spheroid 3 moves down, can make it be close to the bottom and realize sealing, thereby guaranteed the pressure release function, sealing performance both compromise.
Claims (6)
1. A pressure relief instrument ball valve is characterized by comprising a valve body (1), a valve rod (2) and a ball body (3); the valve rod (2) is arranged in the valve body (1); the ball body (3) is arranged at the lower end part of the valve rod (2); a filler (5), a filler pressure pad (6), a disc spring (7) and a combining cap (8) are sequentially arranged above the ball body (3) and upward around the valve rod (2) in the circumferential direction; an adjusting bolt (9) is arranged on the outer periphery of the valve rod (2) and above the combining cap (8); the adjusting bolt (9) extrudes the disc spring (7) through adjustment to adjust the size of a cavity space formed in the center and the displacement of the ball body (3) in the vertical direction; a pressure relief hole (31) extending to the bottom in the valve body (1) is arranged below the ball body (3).
2. The pressure relief meter ball valve of claim 1, wherein: the upper end of the valve rod (2) is fixedly connected with a valve rod handle (4) through a locking bolt (21).
3. The pressure relief meter ball valve of claim 2, wherein: the valve rod handle (4) is of a T-shaped structure and is made of nylon.
4. The pressure relief meter ball valve of claim 1, wherein: the filler (5) is made of PCTFE.
5. The pressure relief meter ball valve of claim 1, wherein: the disc spring (7) is formed by overlapping a plurality of disc springs.
6. The pressure relief meter ball valve of claim 1, wherein: the pressure relief hole (31) is of a cylindrical channel type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021517349.XU CN212986108U (en) | 2020-07-28 | 2020-07-28 | Ball valve of pressure relief instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021517349.XU CN212986108U (en) | 2020-07-28 | 2020-07-28 | Ball valve of pressure relief instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212986108U true CN212986108U (en) | 2021-04-16 |
Family
ID=75429702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021517349.XU Active CN212986108U (en) | 2020-07-28 | 2020-07-28 | Ball valve of pressure relief instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212986108U (en) |
-
2020
- 2020-07-28 CN CN202021517349.XU patent/CN212986108U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |