Gas ball valve leakage detection machine

Abstract

The invention provides a gas ball valve leakage detection machine, and belongs to the technical field of machines. The gas ball valve leakage detection machine solves the problem about how to achieve accurate gas leakage detection of a gas ball valve. The gas ball valve leakage detection machine comprises a rack, a water tank fixed to the rack, a work frame arranged above the water tank, and first drive oil cylinders fixed to the rack. The first drive oil cylinders can drive the work frame to stretch into the water tank. The work frame is provided with a first installing frame and is fixedly provided with a second installing frame and second drive oil cylinders. The second installing frame is located under the first installing frame. The second drive oil cylinders can drive the first installing frame to move towards the second installing frame. At least one sealing head is fixed to each of the first installing frame and the second installing frame. The sealing heads on the first installing frame are opposite to the sealing heads on the second installing frame in position and correspond to the sealing heads on the second installing frame in a one-to-one manner. The machine can rapidly and effectively detect whether gas leakage happens to the to-be-detected ball valve or not, can accurately detect the ball valve gas leakage position and is easy to operate and convenient to observe.

Description

technical field [0001] The invention belongs to the technical field of machinery and relates to a gas ball valve leak detector. Background technique [0002] Gas is an indispensable resource for people's life. Gas ball valve is an important part of gas pipeline. The quality of gas ball valve is related to the safe work of the entire gas pipeline system. The national regulations for the manufacturing material of gas ball valve are PE materials, and the type of valve type There are many, ranging from DN20 to DN400 or even larger. [0003] In the prior art, a gas ball valve generally includes parts such as a valve body, an end pipe, a valve core, and a valve stem, such as the ball valve structure disclosed in Chinese Patent Application No. 201410331597.8. Due to the complex structure and production process of the PE gas ball valve produced by the existing plastic industry, injection molding cannot be used for one-time molding. The assembly process of the gas ball valve is gene...

AI Technical Summary

Problems solved by technology

Due to the complex structure and production process of the PE gas ball valve produced by the existing plastic industry, injection molding cannot be used for one-time molding. The assembly process of the gas ball valve is generally to process the valve body, end pipe, valve core, valve stem and other parts first. Assembled together, and then the end pipe and the valve body are welded and assembled together by hot-melt welding

[0004] However, because the welding quality is difficult to guarantee, the junction between the end pipe and the valve body and the joint between the valve body and the valve core are prone to leakage. Therefore, gas leakage detection must be carried out on the gas ball valve during the quality inspection process.

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