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Ball valve sealing structure

A technology of sealing structure and ball valve, which is applied in the direction of valve shell structure, shaft seal, valve details, etc., can solve problems such as stuffing, ball switch jamming and inflexibility, etc., so as to improve service life, reduce equipment operating cost, and improve production efficiency. Effect

Pending Publication Date: 2022-04-08
KINGDREAM PLC CO +2
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AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a ball valve sealing structure to solve the problem of coarse particles filling the sealing cavity and the ball switch being stuck and inflexible in the related art

Method used

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Embodiment Construction

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all 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.

[0041] The embodiment of the present invention provides a sealing structure of a ball valve, which can solve the problems in the related art that the sealing cavity is filled with coarse particles and the ball switch is stuck and inflexible.

[0042] see figure 1 , Figure 5 , Image 6 , Figure 7 , Figure 8 , Figure 9 , Figure 12 ,...

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Abstract

The invention relates to a ball valve sealing structure, which comprises a valve body, a valve core, a valve core, a valve core, a first valve core, a second valve core and a second valve core, wherein the valve body is internally provided with a first channel and a cavity communicated with the first channel; the ball body is rotatably installed in the cavity, a second channel is formed in the ball body, and the second channel is used for being communicated with the first channel when the ball body rotates by a preset angle; the first valve seat is mounted in the cavity, and the first valve seat is arranged on one side of the ball body; the second valve seat is arranged on the side, away from the first valve seat, of the ball body, the second valve seat is installed in the cavity in a floating mode through a sealing pair, and the sealing pair is arranged between the second valve seat and the valve body in a clamped mode. The valve seat on the outer side of the ball body and the valve body are installed in a floating mode through the sealing pair, the ball valve can be protected and sealed, coarse particles in fluid are prevented from filling a sealing cavity, the service life of the ball valve is prolonged, the equipment operation cost is reduced, and the production efficiency is effectively improved.

Description

technical field [0001] The invention relates to the technical fields of coal chemical industry and polysilicon, in particular to a ball valve sealing structure. Background technique [0002] At present, the main function of the ball valve in the pipeline is to cut off, distribute and change the flow direction of the fluid. It only needs to be rotated 90 degrees and a small rotational torque can be closed tightly. [0003] In the related technology, the ball valve installed in the black water system of polysilicon and coal chemical industry, because the fluid contains a large amount of solid particles, during the use of the ball valve, coarse particles often fill the sealing cavity, and the ball switch is jammed and inflexible, resulting in a short service life of the ball valve , frequent shutdowns for maintenance, not only high equipment operating costs, but also seriously affect production efficiency. Contents of the invention [0004] The embodiment of the present inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K5/06F16K5/08F16K41/02F16K27/06
Inventor 郭国忠朱永华
Owner KINGDREAM PLC CO
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