An automatic sealing performance testing machine for the welding joint of pe tee joint

Abstract

The invention discloses an automatic sealing performance test machine for welded joints of PE (polyethylene) three-way connectors, and relates to the field of sealing performance test machines. The automatic sealing performance test machine comprises a base. A three-way connector positioning mechanism, a sealing performance test mechanism and a pushing mechanism for the sealing performance test mechanism are arranged on the base. The automatic sealing performance test machine has the advantages that the problems of large internal cavities and difficulty in judging tiny leakage of gas pressure sensors due to the fact that existing large three-way connectors are blocked at outlets can be solved by the aid of the automatic sealing performance test machine; the automatic sealing performance test machine can extend into the PE three-way connectors, the welded joints can be sealed, test cavities can be diminished, and the sensitivity of gas pressure sensors can be improved.

Description

technical field [0001] The invention relates to the field of sealing performance testing machines, in particular to an automatic sealing performance testing machine for welding joints of PE tee joints. Background technique [0002] Tee joints are used as pipe fittings and pipe connectors, and are generally used at the branch pipes of the main pipeline for medium diversion. The branch pipes of industrial PE (polyethylene) tee joints are usually welded by pipe fittings. Leakage may occur at the welded joints due to reasons such as welding temperature and uneven butt joints, and the leakage of the tee joints is concentrated at the welded joints. . However, as an important pipeline connection of the gas pipeline network, there will be a greater safety hazard if there is leakage. Therefore, it is required to conduct a sealing performance test with compressed gas as the medium before use. [0003] At present, the water bubble method and the air pressure sensor monitoring method ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that large-scale tee joints are blocked at the outlet, the internal cavity is relatively large, and it is difficult for the air pressure sensor to judge micro-leakage, the present invention proposes a method that extends into the inside of the PE tee joint, seals the weld, and reduces the test cavity. , An automatic sealing performance testing machine that improves the sensitivity of the air pressure sensor

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