Device and method for detecting sealing property of sealing element

Abstract

The invention discloses a device and a method for detecting the sealing property of a sealing element. The device comprises a steam generating device, wherein the steam generating device comprises a lower module with an inner cavity and an upper module arranged on the lower module; the sealing element to be detected is arranged between the upper module and the lower module; and a steam generating chamber is formed by enclosing the lower module, the sealing element to be detected and the upper module. The steam generating device also comprises an emptying valve, a heater, a weighing device and a control system, wherein the weighing device is used for weighing the steam generating device; the control system is used for acquiring and analyzing environment information in the steam generating chamber and controlling the heater to heat the inner cavity according to the analyzing result and comprises a computer and a sensor which is arranged in the steam generating chamber; and the computer is in signal connection with the sensor and the heater respectively. The device of the invention detects the weight change of the steam generating device within a certain period of time by adopting a weight loss method so as to calculate the leakage rate of the sealing element. The method is simple and feasible and the measuring result is accurate.

Description

technical field [0001] The invention relates to a device and a method for detecting the performance of a sealing member, in particular to a device and a method for detecting the sealing performance of a sealing member under high temperature and high pressure steam conditions. Background technique [0002] Usually, in order to ensure that the seals can be safely sealed and leak-free when they are used under high temperature and high pressure conditions, it is necessary to conduct sampling tests on the seals for steam sealing performance. The standard detection method is the effusion method, and the detection device such as figure 1 Shown: [0003] The detection device is mainly composed of a steam generator 19, an autoclave 13, a pressure gauge (sensor) 5, a thermometer (sensor) 8, a detection sample 9, an auxiliary sealing ring 10, a leaking pipe 18 and a measuring cylinder 20. During detection, high-temperature and high-pressure steam enters the autoclave 13 from the stea...

AI Technical Summary

Problems solved by technology

This test method seems to be feasible, but because the leakage of the seal is usually small, and the auxiliary sealing ring usually also leaks, and the steam adheres to the wall of the leakage pipe, the liquid in the measuring cylinder is basically not collected Or the collected effusion is very little, so the effusion method detection device cannot accurately measure the steam leakage of the seal, especially when there is a small leakage of the seal

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