Severe working condition valve testing device capable of monitoring valve torque and seal

Abstract

The invention belongs to the field of valve testing devices and in particular relates to a severe working condition valve testing device capable of monitoring valve torque and seal. The severe workingcondition valve testing device comprises a main pipeline and a solid medium injection branch line, wherein a pressure source device, a flow meter and a heater are arranged on the main pipeline; a tested test valve is arranged behind the heater on the main pipeline; a pressure sensor and a temperature sensor are arranged nearby the test valve; a flow monitoring device is arranged on the outlet side of the test valve; an actuating mechanism is arranged on the test valve; a test valve torque detection sensor is arranged between the test valve and the actuating mechanism; the solid medium injection branch line injects a solid medium into the main pipeline in front of the test valve. According to the testing device disclosed by the invention, the pressure and temperature exist during the valvetest, the solid medium exists in the medium, the gap of the conventional valve testing device is filled by simulating severe working conditions to test, and the switch life test and cycle life test of the valve for the severe working conditions can be performed.

Description

technical field [0001] The invention belongs to the field of valve testing devices, and in particular relates to a valve testing device under harsh working conditions capable of monitoring valve torque and sealing. Background technique [0002] Valves are widely used in the switch control of pipeline systems in petroleum, chemical, coal chemical, polysilicon, electric power and other industrial installations. With the development of industry, the operating conditions of valves are becoming more and more severe. The operating conditions include higher pressure, higher temperature, and even solid particle media in the medium. Valves are easily damaged when used under harsh working conditions. In order to improve the reliability of valves used under harsh working conditions, it is necessary to simulate actual working conditions for valve tests. Although the working conditions of valves are very complicated, the existing valve standards are for The valve test usually only consi...

AI Technical Summary

Problems solved by technology

Valves are easily damaged when used under harsh working conditions. In order to improve the reliability of valves used under harsh working conditions, it is necessary to simulate actual working conditions for valve tests. Although the working conditions of valves are very complicated, the existing valve standards are for The valve test usually only considers the service pressure of the valve, and some standards also consider the service temperature of the valve. For example, the cryogenic valve standard requires the valve to be tested under low temperature conditions. In addition, the current valve standard generally only uses a clean test for the valve test. Medium, such as water, air, nitrogen, helium, etc., because the existing valve standards do not stipulate the test of the valve to simulate the actual working conditions, so it is difficult to guarantee that the valve that has passed the standard test can meet the actual use requirements

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