Square hole flow channel wear-resistant fine-adjustment ball valve

A fine-tuning, flow channel technology, applied in valve devices, cocks including cut-off devices, engine components, etc., can solve the problem of ball valve being washed, unable to linearly adjust the opening, etc., to reduce the medium flow rate, accurate linear characteristic adjustment function, ensure the sealing effect

Pending Publication Date: 2019-04-12
成都斯杰化工机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention overcomes the deficiencies of the prior art, and provides a wear-resistant fine adjustment of the square flow channel that reduces the erosion of the ball flow channel and the valve seat flow channel, linearly adjusts the opening, and has a small rotation angle of the ball during switching to reduce the scouring time. The permanent ball valve solves the problem that the existing ball valve is severely scoured and the opening cannot be adjusted linearly

Method used

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  • Square hole flow channel wear-resistant fine-adjustment ball valve
  • Square hole flow channel wear-resistant fine-adjustment ball valve
  • Square hole flow channel wear-resistant fine-adjustment ball valve

Examples

Experimental program
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Effect test

Embodiment 1

[0040] The invention includes a valve body 1, a valve seat 2 is installed in the valve body 1, a ball 3 is sleeved in the valve seat 2, a valve stem 4 is connected to the ball 3, and the valve stem 4 is sleeved in the valve body 1; its characteristics That is, the shape of the flow passage hole of the ball 3 and the flow passage hole of the valve seat 2 are both square holes.

[0041] Since the flow passage holes of the ball 3 and the valve seat 2 are both square holes, when the valve is opened or closed with a small opening, the ball 3 cooperates with the valve seat 2 to form a rectangular flow passage shape, which is formed when the opening of the existing ball valve is small. The area of ​​the elliptical mouth is greatly increased, thereby increasing the capacity of the flow channel, reducing the flow rate of the medium, reducing the impact of the fluid on the ball port and the valve seat port, and extending its service life.

[0042] The opening area of ​​the rectangular c...

Embodiment 2

[0047] On the basis of Embodiment 1, the arc of the valve seat 2 close to the ball 3 is a sealing surface, and a section of the sealing surface close to the flow channel hole of the valve seat 2 is provided with a gap 21, and the sealing surface is far away from the flow channel hole of the valve seat 2 One section is in close contact with the sphere 3.

[0048] Due to the hidden design of the sealing port of the valve seat 2, the medium still does not damage the sealing port of the valve seat 2 when the valve is opened and closed by about 50%, and the service life of the sealing surface of the valve seat 2 is correspondingly improved.

Embodiment 3

[0050] On the basis of Embodiment 1 or Embodiment 2, the area surrounded by the valve body 1 , the ball 3 and the valve seat 2 is filled with a valve inner liner 5 .

[0051] The area surrounded by valve body 1, sphere 3 and valve seat 2 is filled with valve inner lining 5, which can prevent the medium from entering the valve cavity and damaging the surface of the sphere and the valve cavity during the switching process of the valve. Helps to increase the life of the ball valve.

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Abstract

The invention relates to the field of ball valves, in particular to a square hole flow channel wear-resistant fine-adjustment ball valve. According to the technical scheme, the square hole flow channel wear-resistant fine-adjustment ball valve comprises a valve body; a valve seat is mounted in the valve body; a ball body is arranged in the valve seat in a sleeved manner; a valve rod is connected to the ball body and arranged in the valve body in a sleeved manner; the ball body and the valve seat are each internally provided with a square hole; and the square hole of the ball body and the square hole of the valve seat are both horizontally formed. By means of the square hole flow channel wear-resistant fine-adjustment ball valve, scouring to which a ball body flow channel and a valve seat flow channel is subjected is reduced, the open degree is adjusted linearly, the rotating angle of the ball body is small in the switching-on and switching-off process, and the scouring time is shortened; and the problems that an existing ball valve is scoured severely, and the open degree cannot be adjusted linearly are solved.

Description

technical field [0001] The invention relates to the field of ball valves, in particular to a wear-resistant and finely adjustable ball valve with a square hole channel. Background technique [0002] Existing ball valves generally include a valve body, a valve cover, a valve stem, a ball, a spring, and a valve seat; the ball and the valve seat have a circular hole flow channel. The valve stem is mechanically combined with the ball, the sealing element is the ball and the valve seat, the ball and the valve seat form a spherical fit, the ball can rotate 90° in the valve body with the valve stem as the rotating shaft, so as to open and close the passage of the valve body, thereby preventing the passage The flow of the medium, the elastic force of the spring makes the ball and the sealing surface of the valve seat close to seal. [0003] The disadvantages of the existing ball valves are: [0004] 1. When the valve is opened or closed with a small opening, the sphere and the val...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K5/06F16K5/08F16K5/12F16K5/20
CPCF16K5/0605F16K5/08F16K5/12F16K5/201
Inventor 雷志华
Owner 成都斯杰化工机械有限公司
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