Cryogenic Gasket Leakage Test Device

Abstract

The invention relates to an ultra-low temperature gasket leakage testing device, which includes an incubator and a sealing cylinder. The incubating box is equipped with a low-temperature cooling medium, and the sealing cylinder is used to load the gasket to be tested and placed in the incubating box; the sealing cylinder includes a cylinder body, a cylinder end cover, The sealing seat, the first air pipe and the second air pipe have a concave cavity at the bottom of the cylinder body, and the cylinder end cover is tightly connected with the cylinder body; the sealing seat is installed in the concave cavity, and the end surface matching the sealing seat and the bottom of the cavity is provided There is a test groove for placing the gasket to be tested. The upper and lower end surfaces of the gasket to be tested are in sealing contact with the bottom surface of the cavity and the bottom surface of the test groove respectively. There is a space for gas flow between the outer wall of the sealing seat and the inner wall of the cavity; the first air pipe The inner end communicates with the gas flow space inside the gasket under test through the hole inside the cylinder body, and the inner end of the second air pipe communicates with the gas flow space outside the gasket under test through the hole inside the cylinder end cover. The invention can simulate real working conditions, and measure the leakage and performance of the gasket simply and reliably.

Description

technical field [0001] The invention relates to a gasket leakage test device, in particular to an ultra-low temperature gasket leakage test device. Background technique [0002] With the demand of markets such as air separation and oxygen production, the demand for ultra-low temperature (-196°C) valves is becoming more and more extensive. In the existing market, there are more and more occasions for ultra-low temperature gaskets used in control valves. Many manufacturers do not have the ability to test the valves of the whole machine in an ultra-low temperature environment. In addition, because the internal leakage of the regulating valve is also affected by the balance seal ring and gasket installed in the valve body, when leakage occurs, it is often difficult to determine which part has exceeded the leakage, which affects the effective solution of the problem. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the...

AI Technical Summary

Problems solved by technology

Many manufacturers do not have the ability to test the valves of the whole machine in an ultra-low temperature environment

In addition, because the internal leakage of the regulating valve is also affected by the balance seal ring and gasket installed in the valve body, when leakage occurs, it is often difficult to determine which part has exceeded the standard leakage, which affects the effective solution of the problem

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