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A fire-proof ball valve

A ball valve and ball technology, applied in valve device, valve details, valve shell structure, etc., can solve problems such as unfavorable service life of ball cushion, poor fire performance of ball valve, uniform force of ball cushion, etc., and achieve good mechanical performance and mechanical strength. Good, friction-reducing effect

Active Publication Date: 2018-10-09
DONGYU (TONGBAI) PRECISION METAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the use of the above-mentioned patented valve, because its support member is on the equator line of the sphere, it cannot be supported more stably during the rotation of the sphere, especially for high-pressure liquid opening and closing. During the process, the force on the ball is uneven, and only the support at the equatorial circumference position cannot ensure the uniform force of the ball on the ball pad, which is not conducive to the extension of the service life of the ball pad, and the fire performance of the ball valve is poor.

Method used

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  • A fire-proof ball valve
  • A fire-proof ball valve
  • A fire-proof ball valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] see Figure 1-3, a fire-proof ball valve, including a first housing 1, a ball 2 and a shaft 3, the first housing 1 includes a first accommodation space 4 and a pipe body 5, the first accommodation space 4 is located in the The inside of the first casing 1 and both ends communicate with the outside, the pipe body 5 is arranged on the top surface of the first casing 1, and communicates with the first accommodating space 4; the sphere 2 accommodates In the first accommodating space 1, the two ends of the sphere 2 are provided with through holes 6 communicating with the outside, and the top of the sphere 2 is provided with a first groove 7, which corresponds to The tube body 5; one end of the shaft body 3 is provided with a locking part 8 matched with the first groove 7, and the locking part 8 is pivotally arranged in the tube body 5; the first shell One side of the body 1 is also provided with a second housing 9, the second housing 9 includes a second accommodating space ...

Embodiment 2

[0037] see Figure 4 and Figure 5 , a fire-proof ball valve, including a first housing 1, a ball 2 and a shaft 3, the first housing 1 includes a first accommodation space 4 and a pipe body 5, the first accommodation space 4 is located in the The inside of the first casing 1 and both ends communicate with the outside, the pipe body 5 is arranged on the top surface of the first casing 1, and communicates with the first accommodating space 4; the sphere 2 accommodates In the first accommodating space 1, the two ends of the sphere 2 are provided with through holes 6 communicating with the outside, and the top of the sphere 2 is provided with a first groove 7, which corresponds to The tube body 5; one end of the shaft body 3 is provided with a locking part 8 matched with the first groove 7, and the locking part 8 is pivotally arranged in the tube body 5; the first shell One side of the body 1 is also provided with a second housing 9, the second housing 9 includes a second accomm...

Embodiment 3

[0042] see Figure 6 and 7 , a fire-proof ball valve, including a first housing 1, a ball 2 and a shaft 3, the first housing 1 includes a first accommodation space 4 and a pipe body 5, the first accommodation space 4 is located in the The inside of the first casing 1 and both ends communicate with the outside, the pipe body 5 is arranged on the top surface of the first casing 1, and communicates with the first accommodating space 4; the sphere 2 accommodates In the first accommodating space 1, the two ends of the sphere 2 are provided with through holes 6 communicating with the outside, and the top of the sphere 2 is provided with a first groove 7, which corresponds to The tube body 5; one end of the shaft body 3 is provided with a locking part 8 matched with the first groove 7, and the locking part 8 is pivotally arranged in the tube body 5; the first shell One side of the body 1 is also provided with a second housing 9, the second housing 9 includes a second accommodating ...

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Abstract

The invention relates to a ball valve, in particular to a fireproof ball valve. The fireproof ball valve comprises a first shell, a ball body and a shaft. The first shell comprises a first containing space and a pipe. The ball body is contained in the first containing space. The two ends of the ball body are provided with through holes communicating with the outside. A first groove is formed in the top end of the ball body and corresponds to the pipe. One end of the shaft is provided with a clamping part matched with the first groove, and the clamping part is arranged in the pipe in a pivoted mode. A second shell is further arranged on one side of the first shell and comprises a second containing space. A circle of expansion pad is annularly arranged on the inner wall of the second shell. Two circles of supporting elements which are symmetrical with respect to the largest diameter plane of the ball body are annularly arranged on the inner wall of the first shell. The contact area of the supporting elements and the inner wall of the first shell is larger than that of the supporting elements and the ball body. The fireproof ball valve can provide stable rotation support for the ball body, the service life of the ball valve can be prolonged to a great extent, and the fireproof ball valve is resistant to high temperature and good in flame resistance.

Description

technical field [0001] The invention relates to a ball valve, in particular to a fireproof ball valve. Background technique [0002] For a long time, ball valves have been widely known. Generally, ball valves have: a body with a fluid inflow passage, a fluid outflow passage, and a connecting portion between the fluid inflow passage and the fluid outflow passage; a ball with a fluid communication passage and can rotate around a reference axis. It is arranged in the connecting part of the body in a manner; and a roughly cylindrical ball seat is arranged between the sphere and the body, and the peripheral wall is provided with a required opening, so that the sphere rotates around the reference axis to allow fluid to flow in. Communication and disconnection of passages with fluid outflow passages. [0003] However, in the field of large ball valves, due to the large volume and heavy weight of the ball in the large ball valve, the ball is under the influence of gravity in the ba...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K5/06F16K5/08F16K27/06C08L33/04C08L23/06C08L75/04C08K13/04C08K7/14C08K5/12C08K5/14
CPCC08L33/04C08L2201/02C08L2201/08C08L2205/03C08L2207/062F16K5/0657F16K5/0668F16K5/0689F16K5/08F16K27/067C08L23/06C08L75/04C08K13/04C08K7/14C08K5/12C08K5/14
Inventor 曾江赵强张真鹏
Owner DONGYU (TONGBAI) PRECISION METAL CO LTD
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