a valve plate

A valve plate and body technology, which is applied in the field of CNC machine tool holder, can solve the problems of increased leakage, excessive local sealing specific pressure, and failure to meet the sealing requirements, so as to reduce the leakage of the medium, maintain the sealing effect, and maintain a good sealing effect. The effect of the sealing effect

Active Publication Date: 2015-09-09
CHANGSHU XUNDA POWDER METALLURGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The valve plate is approximately rectangular, and the temperature of the part in contact with the medium is higher than that of other surrounding parts. The temperature field is unevenly distributed, resulting in uneven deformation, which makes the valve seat and the valve plate poor contact, and the sealing surface cannot be completely fitted, resulting in Cause local sealing specific pressure to be too large, sealing surface is easy to scratch, gaps, leakage increase and sealing requirements cannot be met, and even cause accidents such as device shutdown

Method used

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Embodiment Construction

[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0015] see figure 1 , the embodiment of the present invention includes:

[0016] A valve plate, including a valve plate body 1, the valve plate body 1 is an equilateral hexagon, a through groove 14 is arranged in the middle position of the valve plate body 1, and the surroundings of the through groove are respectively arranged There are several through holes, the through holes include the first through hole 11, the second through hole 12 and the third through hole 13, the first through hole 11 is arranged on the lef...

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Abstract

The invention discloses a valve plate, which comprises a valve plate body, wherein the valve plate body is shaped into a regular hexagon; a through groove is formed in the middle position of the valve plate body; a plurality of through holes also are formed around the through groove respectively, and comprise first through holes, second through holes and third through holes; the first through holes are formed in the left and right sides of the valve plate body; the second through holes are formed in the upper and lower sides of the valve plate body; the third through holes are formed in the upper side of the valve plate body. The valve plate is molded at one time by powder metallurgy, the through groove is formed in the middle position of the valve plate body, and the through holes also are formed around the through groove respectively, so that the valve plate has the advantage of compact and firm structure, and can be completely attached to the sealing surface of a valve seat, a good sealing effect can be maintained, and the leakage of a medium can be minimized.

Description

technical field [0001] The invention relates to the field of CNC machine tools, in particular to a valve plate. Background technique [0002] When the traditional gate valve is in high temperature or temperature alternating conditions, the valve plate and seat are prone to thermal expansion, deformation and creep when heat treatment process or workload is carried out. The shape of the valve seat is generally a cylindrical ring, and the deformation is uniform when the overall temperature is close to the medium temperature. The valve plate is approximately rectangular, and the temperature of the part in contact with the medium is higher than that of other surrounding parts. The temperature field is unevenly distributed, resulting in uneven deformation, which makes the valve seat and the valve plate poor contact, and the sealing surface cannot be completely fitted, resulting in This will result in problems such as excessive local sealing specific pressure, easy scratches on th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K3/312
Inventor 朱杏根翁星宏
Owner CHANGSHU XUNDA POWDER METALLURGY
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