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Sealing bonnet of a spur gear high pressure gate valve

A high-pressure gate valve and spur gear technology, applied in the field of sealing valve cover, can solve the problems of falling, valve cover wear and sealing, affecting the normal use of the valve, etc., to achieve strong wear resistance, improve sealing performance, and prolong service life.

Active Publication Date: 2018-05-15
SUZHOU KEDI FLUID CONTROL EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the reciprocating use of the valve, the valve cover will be gradually worn and the sealing performance will decrease, thus affecting the normal use of the valve

Method used

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  • Sealing bonnet of a spur gear high pressure gate valve
  • Sealing bonnet of a spur gear high pressure gate valve

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Embodiment Construction

[0013] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0014] Such as figure 1 , figure 2 As shown, a sealing valve cover 1 of a spur gear high-pressure gate valve includes an annular ceramic cover 10, a sealing ring 11 is provided on the ceramic cover 10, and a plurality of rolling rings are arranged in the top surface depression of the ceramic cover 10. The shaft 20, the rollers 20 are symmetrically distributed in the center, the rollers 20 are covered with an annular sealing tile 30, the sealing tile 30 is sealed with the ceramic cover 10, and the sealing tile 30 is provided with a plurality of sliding Groove 31, the sliding groove 31 corresponds to the roller 20 one by one, the ceramic cover 10...

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Abstract

The invention discloses a sealing valve cover of a spur gear high-pressure gate valve. The sealing valve cover comprises an annular ceramic cover body; a sealing ring is arranged on the ceramic cover body; multiple rolling shafts are arranged in a top surface recess of the ceramic cover body, and are distributed in a central symmetry form; an annular sealing ceramic piece covers the rolling shafts, and is tightly covered with the ceramic cover body; multiple chutes are formed in the sealing ceramic piece, and are corresponding to the rolling shafts one to one; and the ceramic cover body and the sealing ceramic piece are formed by burning aluminum oxide, strontium carbonate, tin oxide and chromium according to a weight part ratio of 150: 17: 6: 13. The sealing valve cover of the spur gear high-pressure gate valve adopts the matched ceramic cover body and sealing ceramic piece; and the ceramic cover body and the sealing ceramic piece are higher in wear resistance, and cannot generate wear in repeated rotation of a valve rod, so that the sealing performance of the valve cover is greatly improved, and the service life of the spur gear high-pressure gate valve is prolonged.

Description

technical field [0001] The invention relates to a valve cover, more precisely, a sealing valve cover of a spur gear high-pressure gate valve. Background technique [0002] Spur gear high-pressure gate valve is a kind of valve that is widely used in industrial production and has a broad application prospect. A bonnet is provided between the valve body and the valve stem of the spur gear high-pressure gate valve, and the bonnet is used for connecting the valve body and the valve stem, and has better sealing performance. However, with the reciprocating use of the valve, the valve cover will be gradually worn and the sealing performance will be reduced, thereby affecting the normal use of the valve. Contents of the invention [0003] The invention mainly solves the technical problems existing in the prior art, thereby providing a sealing valve cover of a spur gear high-pressure gate valve with high sealing performance. [0004] Above-mentioned technical problem of the presen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K27/04F16K27/12
CPCF16K27/04F16K27/12
Inventor 田洪卫
Owner SUZHOU KEDI FLUID CONTROL EQUIP
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