Solid powder regulation ball valve

A technology for regulating balls and solid powders, applied to valve details, valve devices, valve housing structures, etc., can solve problems that cannot be used for regulating occasions, achieve strength and communication, improve wear resistance and corrosion resistance, The effect of increasing the service life

Inactive Publication Date: 2013-03-13
ZHEJIANG ZHONGDE AUTOMATIC CONTROL VALVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In some piping systems where the medium is solid particles or powder (such as coal powder, polysilicon, polypropylene, etc.), due to the characteristics of the working conditions, the performance requirements for the valve are very high, and the valve is required to be wear-resistant, corrosion-resis

Method used

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Examples

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Example Embodiment

[0019] Refer to figure 1 , figure 2 , The solid powder state regulating ball valve of the present invention includes a valve body 1, a valve core 8, a valve stem 9, an upper sleeve 11, a lower sleeve 5, a set screw 6, a limit block 10, a rear cover 3, and a valve seat assembly 7 , Screw 24, the valve body 1 is a one-piece structure, the upper part is installed with an upper sleeve 11, the lower part is installed with a lower sleeve 5, one side of the valve core 8 is spherical, and the other side is opened with a "V" The valve stem 9 is one-piece and fixed with the valve core 8 by a set screw 6. The stop block 10 is located between the valve body 1 and the valve core 8. The stop block 10 is added to make the valve core 8 is always concentric with the valve seat 19 to provide sealing and prevent the valve stem 9 from flying out of the valve body 1 under high pressure. The rear cover 3 is located at the rear of the valve body 1.

[0020] The valve seat assembly 7 is located in the ...

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PUM

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Abstract

The invention discloses a solid powder regulation ball valve, which comprises a valve body, a spool, a valve rod, an upper shaft sleeve, a lower shaft sleeve, a set screw, a stop block, a rear cover, a valve seat assembly, screws and the like. Since the solid powder regulation ball valve adopts the one-piece valve rod, the strength and the communication degree are guaranteed; since the partially spherical spool with a V-shaped notch is adopted, the flow characteristic of the valve is changed, as a result, the valve has regulating performance and an automatic shearing function, and the service life of the valve is prolonged; because belleville springs are adopted for pretightening, the sealing specific pressure of a valve seat is guaranteed; dust-proof pads are adopted to prevent powdery medium from entering the spring holes to cause the failure of the springs; the surface of the spool and the sealing surface of the valve seat are specially treated, i.e., nickel-chromium hard alloy is sprayed or surfaced on the surfaces, the abrasive resistance and corrosion resistance of the valve are effectively enhanced, the service life of the valve is prolonged, and the production cost is reduced.

Description

【Technical field】 [0001] The invention relates to the technical field of a solid powder state regulating ball valve, and is particularly suitable for the occasions where the solid particle medium or powder state medium needs to regulate the flow of the medium in industrial automatic control. 【Background technique】 [0002] In some piping systems where the medium is solid particles or powder (such as coal powder, polysilicon, polypropylene, etc.), due to the characteristics of the working conditions, the performance requirements for the valve are very high, and the valve is required to be wear-resistant, corrosion-resistant, and Due to the characteristics of high temperature and high pressure, long service life, etc., O-type ball valves are generally used in this working condition, but O-type ball valves cannot be used for regulating occasions due to their own flow characteristics. There are no suitable valve products yet. 【Content of invention】 [0003] The purpose of the...

Claims

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Application Information

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IPC IPC(8): F16K5/06F16K5/08F16K5/20F16K27/08
Inventor 粟飞张德贤
Owner ZHEJIANG ZHONGDE AUTOMATIC CONTROL VALVE
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