Five-section ball valve capable of being disassembled on line

Abstract

The invention discloses a five-section ball valve capable of being disassembled on line. The five-section ball valve comprises a right valve body, valve seats, a middle valve body, a ball body and a left valve body, wherein the ball body is arranged in the middle valve body, a left auxiliary valve body and a right auxiliary valve body are arranged between the middle valve body and the left valve body and between the middle valve body and the right valve body, and the valve seats are arranged in the left auxiliary valve body and the right auxiliary valve body; sealing rings and sealing ring pressing rings are arranged between the left and right auxiliary valve bodies and the valve seats, grooves I are formed in abutting faces between the left and right auxiliary valve bodies and the sealingring pressing rings, and cylindrical springs are arranged in the grooves I and abut against the sealing ring pressing rings; and grooves II are formed in abutting faces between the left and right auxiliary valve bodies and the left and right valve bodies, wound gaskets I are arranged in the grooves II, grooves III are formed in abutting faces between the left and right auxiliary valve bodies andthe middle valve body, wound gaskets II are arranged in the grooves III, and the compression ratio of the wound gaskets I is greater than that of the wound gaskets II. The five-section ball valve capable of being disassembled on line has the beneficial effects are that under the condition that the sealing performance is ensured, the structure is simple, and disassembly is easier.

Description

technical field [0001] The invention relates to an online detachable five-section ball valve. Background technique [0002] In the existing three-stage ball valve structure, when the fasteners connecting the left and right valve bodies and the middle valve body are removed, since the valve seats are arranged in the left and right valve bodies, the force of the valve seats still acts on the ball during disassembly. As a result, the ball is still fixed and limited by the valve seat, and cannot be taken out together with the middle valve body alone. If it is taken out forcibly, it will cause scratches on the sealing surface and affect the sealing performance. Therefore, the current three-section ball valve has a complex structure and is not easy to disassemble. Contents of the invention [0003] In order to overcome the above-mentioned problems in the prior art, the present invention provides a five-stage ball valve that can be disassembled online. [0004] The technical sol...

AI Technical Summary

Problems solved by technology

[0002] In the existing three-stage ball valve structure, when the fasteners connecting the left and right valve bodies and the middle valve body are removed, since the valve seats are arranged in the left and right valve bodies, the force of the valve seats still acts on the ball when it is disassembled. As a result, the ball is still fixed and limited by the valve seat, and cannot be taken out together with the middle valve body alone. If it is taken out forcibly, it will cause scratches on the sealing surface and affect the sealing performance. Therefore, the current three-section ball valve has a complex structure and is not easy to disassemble.

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