Hydraulic pressure test device and method for explosion-proof part

Abstract

The invention relates to a hydraulic pressure test device for an explosion-proof part. The device comprises a hydraulic pump and a part to be tested; an inlet valve and an outlet valve are respectively arranged at two sides of the part to be tested, the hydraulic pump, the part to be tested, the inlet valve and the outlet valve are connected through pipelines, and a pipeline between the inlet valve and the outlet valve is provided with a pressurizer. A testing method comprises the following operational steps: opening the hydraulic pump so as to allow water to enter and closing the outlet valve when water current at a water outlet of the part to be tested is stable; applying a set pressure, closing the inlet valve and pressurizing the part to be tested by using the pressurizer; determining that the part to be tested is defective if an alarm device sounds an alarm, determining that the part to be tested is qualified if the alarm device has no response and opening the outlet valve so as to finish testing. According to the invention, explosion and leakage in an explosion-proof test are specifically quantilized and directly represented; a conventional method of determining whether a part is in accordance with explosion-proof requirements by observing whether there are water drops around a workpiece in a conventional explosion-proof test is replaced; the efficiency rate and accuracy of the test are greatly improved.

Description

technical field [0001] The invention relates to the field of explosion-proof test of box parts, in particular to a hydraulic test device and method for explosion-proof parts. Background technique [0002] With the development of my country's electric power, coal, petroleum and other energy industries, the demand for valve electric devices with explosion-proof requirements is increasing, that is, there are more and more explosion-proof parts that require explosion-proof tests. The explosion test adopts a simple hydraulic test device. Use eyes to observe whether there is water leakage on the surface of the workpiece to judge whether the part is qualified or not. The existing device is inconvenient to operate and the efficiency is not high. For some larger workpieces, it is difficult to operate. It is even more difficult, which greatly reduces the efficiency of the explosion-proof parts test, thereby increasing the production cycle of the explosion-proof valve electric device. ...

AI Technical Summary

Problems solved by technology

[0002] With the development of my country's electric power, coal, petroleum and other energy industries, the demand for valve electric devices with explosion-proof requirements is increasing, that is, there are more and more explosion-proof parts that require explosion-proof tests. The explosion test adopts a simple hydraulic test device. Use eyes to observe whether there is water leakage on the surface of the workpiece to judge whether the part is qualified or not. The existing device is inconvenient to operate and the efficiency is not high. For some larger workpieces, it is difficult to operate. It is even more difficult, which greatly reduces the efficiency of the explosion-proof parts test, thereby increasing the production cycle of the explosion-proof valve electric device

Images