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Wing-protective type flow adjusting ball core for eccentric rotary valve

A technology of flow adjustment and eccentric rotation, which is applied in the direction of valve devices, cocks including cut-off devices, engine components, etc. It can solve the problems of equipment shutdown, shaft hole seat without any protection, and product adjustment characteristics are not regular, so as to achieve product flow adjustment. Improved quality and reliable results

Inactive Publication Date: 2011-07-27
WUZHONG INSTR
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing eccentric rotary valve core is only driven by the main and auxiliary shafts to rotate the eccentric spherical crown, and the convex shaft hole seat has no protection. The high-speed flow area of ​​the medium at a small opening degree scours the main and auxiliary shaft heads at high speed. The gray water field can only be used for 2 months, resulting in high-frequency shutdown of the equipment, and the adjustment characteristics of the product are irregular

Method used

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  • Wing-protective type flow adjusting ball core for eccentric rotary valve
  • Wing-protective type flow adjusting ball core for eccentric rotary valve
  • Wing-protective type flow adjusting ball core for eccentric rotary valve

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Embodiment Construction

[0014] The present invention will be described in further detail below in conjunction with accompanying drawing:

[0015] Such as figure 1 , 2 , 4, the present invention is a wing-type eccentric rotary valve flow regulating ball core, the ball core is provided with a spherical surface 2 for sealing, and a layer of crown boss 1 is also provided on the spherical surface 2, the boss The surface is arc-shaped, and a groove 3 is opened on the spherical surface 2 so as to serve as a flow regulating window.

[0016] Such as figure 1 , 2 , 4, wherein the surface of the boss is spherical, and the groove 3 on the spherical surface 2 is semicircular.

[0017] The ball core of the present invention is a double spherical surface 2 hemispherical structure with double eccentric shaft holes, wherein the spherical surface 2 not only plays the role of regulating and dredging in the fluid control, but also plays the role of wing protection, and the crown boss 1 slightly larger than the spher...

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Abstract

The invention relates to a valve core for an eccentric rotary valve, in particular to a wing-protective type flow adjusting ball core for an eccentric rotary valve. The ball core is provided with a ball surface (2) that plays a sealing role. The flow adjusting ball core is characterized in that the ball surface (2) is also provided with a coronal boss (1); the surface of the coronal boss (1) is arc-shaped; and furthermore, the ball surface (2) is provided with a slot (3) that is used as a flow adjusting window. The test proves that when the eccentric rotary valve with the ball core is used in a black water system in the fields of coal chemical industries and the like, the service life of a product can be prolonged from 2 months to 18 months, the product has a reliable use effect, and the flow adjusting quality of the product is also improved by 5%.

Description

technical field [0001] The invention relates to a valve core of an eccentric rotary valve, in particular to a wing-type eccentric rotary valve flow regulating ball core. Background technique [0002] The ball core of the existing eccentric rotary valve is only driven by the main and auxiliary shafts to rotate the eccentric spherical crown, and there is no protection for the convex shaft hole seat. The gray water field can only be used for 2 months, resulting in high-frequency shutdown of the equipment, and at the same time, the adjustment characteristics of the product are not regular. Contents of the invention [0003] The purpose of the present invention is to provide a wing-type eccentric rotary valve flow regulating ball core, which can make the eccentric rotary valve be used reliably for a long time in the fields of coal chemical industry, crude oil catalysis, cracking, storage and transportation, black water, gray water, etc. The use of such valves to adjust the acc...

Claims

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Application Information

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IPC IPC(8): F16K5/06F16K5/08
Inventor 马玉山高强常占东陈金霞
Owner WUZHONG INSTR