Safety valve opening and closing pressure test device and method for simulating actual working condition

Abstract

The invention discloses a safety valve opening and closing pressure test device and method for simulating an actual working condition, wherein the safety valve opening and closing pressure test devicefor simulating an actual working condition comprises a measuring pressure tank, a measuring component and a plurality of measuring valves. The measuring component is disposed on the measuring pressure tank. The measuring valves are connected to the measuring pressure tank through pipelines and comprise an air intake valve, a water intake valve, an air bleed valve, a water drain valve, a flow regulating valve, and a cutoff ball valve. The cutoff ball valve is connected to a safety valve to be tested through a measuring pipeline. The measuring component includes a pressure gauge, a flow meter,and an electronic thermometer. The safety valve opening and closing pressure test device is small in size and convenient to be placed in an indoor space such as a laboratory and a factory building, and by using the expansion property of a gas and reasonably setting a gas-water ratio in the measuring pressure tank, can simulate the continuous pressure of a water inlet when the safety valve discharges in different working environments and relatively really reflects the actual discharge behavior of the safety valve.

Description

technical field [0001] The invention relates to the field of detection devices, in particular to a safety valve opening and closing pressure testing device and method for simulating actual working conditions. Background technique [0002] When the safety valve is not working, its opening and closing parts are in a normally closed state when the external force acts on it. When the medium pressure in the equipment or pipeline rises above the specified value, the safety valve prevents the pressure of the medium in the pipeline or equipment by discharging the medium to the outside of the system. exceeds the specified value. The core parameters of the safety valve are cracking pressure and reseating pressure. [0003] Cracking pressure, also known as set pressure, refers to the inlet pressure when the disc of the safety valve starts to lift under operating conditions. Reseating pressure refers to the inlet pressure when the disc and seat of the safety valve are in contact again...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the existing safety valve detection device cannot simulate the actual working conditions well, the operation is cumbersome and the detection efficiency is low in the detection of the safety valve.

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