Valve base online replacing ball valve

Abstract

The invention discloses a valve base online replacing ball valve. A left valve body and a right valve body are included and are in communication. A ball is arranged in the right valve body. A left valve base is arranged in the corresponding left valve body. A right valve base is arranged in the right valve body. A valve rod rotationally penetrates through the upper end of the right valve body, thelower end of the valve rod is in transmission connection with the ball valve, and the upper end of the valve rod is connected with a wrench. The valve base online replacing ball valve is characterized in that the lower end of the right valve body is provided with a positioning rod in an up-down moving and penetrating manner, a positioning hole is formed in the lower end of the corresponding ball,and the positioning rod is matched with the positioning hole; a left standby valve base is further arranged in a channel of the left valve body, the left valve base can be directly extracted from theinterior of the left valve body, and the left valve base is replaced with the left standby valve base. By means of the valve base online replacing ball valve, when the left valve base is damaged, thedamaged left valve base can be taken out without pipeline running stopping or ball valve detachment, the left standby valve base is moved to the original left valve base position, and accordingly theadvantage of online replacement of the left valve base is achieved.

Description

technical field [0001] The invention relates to an improved invention of a ball valve, in particular to an improved invention of an on-line seat replacement ball valve. Background technique [0002] The ball valve is a valve widely used in oil pipelines, natural gas pipelines and chemical systems. When the traditional floating ball valve is in use, the ball is pushed by the medium to press the valve seat on the outlet side to seal. Since the material of the valve seat is fluorine Made of plastic or nylon, the valve seat on the outlet side is easy to wear. When the valve seat on the outlet side is worn, it cannot be replaced online. It is necessary to stop the pipeline, disassemble the valve for maintenance, and replace the valve seat, resulting in a large loss of manpower and material resources. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an on-line seat replacem...

AI Technical Summary

Problems solved by technology

[0002] The ball valve is a valve widely used in oil pipelines, natural gas pipelines and chemical systems. When the traditional floating ball valve is in use, the ball is pushed by the medium to press the valve seat on the outlet side to seal. Since the material of the valve seat is fluorine Made of plastic or nylon, the valve seat on the outlet side is easy to wear. When the valve seat on the outlet side is worn, it cannot be replaced online. It is necessary to stop the pipeline, disassemble the valve for maintenance, and replace the valve seat, resulting in a large loss of manpower and material resources.

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