Test device used for testing sealing performance of metal pressure vessel

Abstract

The invention provides a test device used for testing the sealing performance of a metal pressure vessel, the test device comprises base cylinders, inner ring sleeves and fixing corner seats, the numbers of the base cylinders, the inner ring sleeves and the fixing corner seats are four, threaded rods are welded to the two ends of each base cylinder, two bases are welded to the outer walls of the fixing corner seats and vertically distributed, rotation threaded cylinders are mounted at the outer ends of the two bases in a rotation manner, the base cylinders, the threaded rods, the rotation threaded cylinders, the bases and the fixing corner seats are connected end by end sequentially, and connection plates are welded to the inner sides of the four base cylinders; shape change is tested through change of the pressure vessel after inflation and change of the capacitance of a capacitance sensor in the test device, the operation is simple, verification of pressure delay is avoided, at the same time, the shape change of the device is only influenced by the internal pressure, the other factors are avoided, the whole process is rapid, and the verification result accuracy is high.

Description

technical field [0001] The invention relates to a detection device for detecting the tightness of a metal pressure vessel, which belongs to the technical field of detection devices. Background technique [0002] When the existing metal pressure vessels are tested for tightness, most of them use pressure filling, gas shutoff, and pressure maintenance to test the tightness, and a few use sound collection. The former should be due to the deformation effect of the pressure vessel itself. The transformation has a delay, so the detection time is prolonged. The latter needs to place the metal pressure vessel in a quiet room or a static box, which is affected by external factors and makes the measurement operation difficult. Therefore, we propose a method for detecting the seal of metal pressure vessels. sex detection device. Contents of the invention [0003] In view of the deficiencies in the prior art, the object of the present invention is to provide a detection device for de...

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Problems solved by technology

[0002] When the existing metal pressure vessels are tested for tightness, most of them use pressure filling, gas shutoff, and pressure maintenance to test the tightness, and a few use sound collection. The former should be due to the deformation effect of the pressure vessel itself. The transformation has a delay, so the detection time is prolonged. The latter needs to place the metal pressure vessel in a quiet room or a static box, which is affected by external factors and makes the measurement operation difficult. Therefore, we propose a method for detecting the seal of metal pressure vessels. Sex detection device

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