A test machine for the sealing performance of the fusion joint of a three-way joint
A technology of sealing performance and tee joint, which is used in the testing of fluid tightness, the testing of machine/structural components, and the measurement of liquid tightness using liquid/vacuum. It can solve the problems of large internal cavity and achieve structural The effect of strong linkage, high test efficiency and low production cost
Active Publication Date: 2018-02-23
平邑现代中药产业园有限公司
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Problems solved by technology
[0004] In order to solve the problem that the outlet of the large-scale tee joint is blocked, the internal cavity is relatively large, and the air pressure sensor is not easy to judge the micro-leakage, the present invention proposes a method that extends into the tee joint, seals the weld, and reduces the test cavity. A sealing performance testing machine for improving the sensitivity of the air pressure sensor
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[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0027] A test machine for the sealing performance of the fusion joint of a three-way joint, such as figure 1 , figure 2 As shown, it includes a plane base 1, and the base 1 is provided with a positioning mechanism 2 of a tee joint 5, a sealing performance testing mechanism 3, and a pushing mechanism 4 of the sealing performance testing mechanism 3. The positioning mechanism 2 is used for placing and positioning the tee joint 5, the sealing performance testing mechanism 3 is used for extending into the tee joint 5 for sealing and testing the tightness, and the pushing mechanism 4 is used for sending the sealing performance testing mechanism 3 to the tee joint 5 Determine the position internally.
[0028] The positioning mechanism 2 is a cylinder 201 placed horizontally, the inner diameter of the cylinder 201 matches the outer diameter of the ...
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The invention discloses a sealing performance testing machine for a welding joining part of a tee joint. The sealing performance testing machine relates to the field of a sealing performance testing machine and comprises a base. The base is provided with a tee joint positioning mechanism, a sealing performance testing mechanism and a pushing mechanism for the sealing performance testing mechanism. For settling the problems of relatively large inner chamber and no easy determination for micro leakage by an air pressure sensor caused by outlet blocking in a large-size tee joint, the invention provides the sealing performance testing machine which enters the inner part of the tee joint and has advantages of realizing sealing for aiming at the welding joining part, reducing the testing chamber and improving sensitivity of the air pressure sensor.
Description
technical field [0001] The invention relates to the field of sealing performance testing machines, in particular to a sealing performance testing machine for welding joints of three-way 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 are usua...
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IPC IPC(8): G01M3/28
CPCG01M3/2853
Inventor 王国良王楠
Owner 平邑现代中药产业园有限公司