Dust collection type spherical stop valve

A cut-off valve, spherical technology, applied in the direction of valve devices, cocks including cut-off devices, engine components, etc., can solve the problems of short service life, fragile sealing surface, not resistant to high pressure, etc., to achieve improved performance, small rotational friction, Good lubrication effect

Inactive Publication Date: 2013-08-14
ZHONGYA VALVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The seal of the traditional globe valve is a cone seal or a flat seal, and the cone seal is a linear seal. It has good pressure resistance during use, but the sealing surface is fragile and has a short service life; although the plane seal is not easy to damage, its Not resistant to high pressure and easy to stain

Method used

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  • Dust collection type spherical stop valve

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Embodiment Construction

[0014] The present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0015] Such as figure 1 As shown, the present invention provides a dust-removing spherical globe valve, including a valve body 1, a valve cover 7, a valve clack 4, a ball core assembly, a valve stem 5 and a handwheel 16, and the valve cover 7 and the valve body 1 are arranged between There is a middle gasket 6 and the middle bolts 8 are fixedly connected together. The valve body 1 is provided with a valve cavity 20. The left and right ends of the valve body 1 are provided with an inlet 22 and an outlet 21 communicating with the valve cavity 20; the valve disc 4 is arranged in the valve cavity 20, and one end of the valve disc 4 and the valve stem 5 The other end of the valve stem 5 extends out of the valve cover 7 and is connected to the hand wheel 16, the hand wheel 16 is provided with a lock nut 18. The ball core assembly is arranged between the va...

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Abstract

The invention provides a dust collection type spherical stop valve. The dust collection type spherical stop valve comprises a valve body, a bonnet, a valve clack, a ball assembly, a valve rod and a hand wheel, wherein the bonnet is connected with the valve body, a valve cavity is formed in the valve body, the valve clack is disposed in the valve cavity, the valve clack is snapped with one end of the valve rod, and the other end of the valve rod extends out of the bonnet to be connected with the hand wheel; the ball assembly is arranged between the valve clack and an outlet; the ball assembly comprises a ball, a positioning sleeve, a ball pad and a seal ring; the ball can float freely, the ball pad is a copper core pad which is positioned between the top of the ball and the valve clack; the positioning sleeve is arranged on the periphery of the ball, the inner circumference of the positioning sleeve is matched with the outer circumference of the ball, and the positioning sleeve is connected with the valve clack; and the seal ring is overlaid on a valve seat in the valve body, and a sealing surface of the seal ring, which corresponds to the ball, is an arc-shaped spherical surface. According to the dust collection type spherical stop valve, the multi-directional ball combination and the arc-shaped sealing surface are adopted, so that the sealing performance is good, the service life is long, and dust-collecting and dirt-removing functions are combined simultaneously.

Description

Technical field [0001] The invention belongs to the field of valves, and specifically relates to a dust-removing spherical globe valve. Background technique [0002] The stop valve is a commonly used valve for cutting off, regulating and throttling pipeline media. The existing globe valve is mainly composed of a valve body, a valve seat, a valve stem and a valve disc. The valve disc is connected to one end of the valve stem and corresponds to the valve seat. Rotating the valve stem makes the valve disc move along the center line of the valve seat. , To achieve the opening between the valve clack and the valve seat. The seal of the traditional globe valve is a conical seal or a plane seal. The conical seal is a linear seal. It has good pressure resistance during use, but the sealing surface is vulnerable and has a short service life. Although the plane seal is not vulnerable, it is Not resistant to high pressure and easy to stain. Summary of the invention [0003] In view of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K5/06F16K5/08
Inventor 杨选辰陈光龙周道亮
Owner ZHONGYA VALVE
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