Testing device and testing method for hydraulic self-driven quick-closing isolating valve

Abstract

The invention provides a testing device and a testing method for a hydraulic self-driven quick-closing isolating valve. The testing device comprises a first straight pipe section, a second straight pipe section, a first pressurizing pipe, a second pressurizing pipe, a first valve group, a second valve group, a first pressure gauge and a second pressure gauge, wherein the first end of the first straight pipe section is connected with the inlet end of a main isolating valve, the second end of the first straight pipe section is connected with the first end of the first pressurizing pipe, the second end of the first pressurizing pipe is connected with a gas source or a liquid source, the first end of the second straight pipe section is connected with the outlet end of the main isolating valve, the second end of the second straight pipe section is connected with the first end of the second pressurizing pipe, the second end of the second pressurizing pipe is connected with the gas source or the liquid source, the first valve group and the first pressure gauge are both connected to the first pressurizing pipe in series, and the second valve group and the second pressure gauge are both connected to the second pressing pipe in series. According to the invention, the testing device and method are reasonable, feasible, good in test effect, simple, efficient, high in applicability and capable of being applied and popularized.

Description

technical field [0001] The invention belongs to the technical field of isolation valves for high-temperature gas-cooled reactors, and in particular relates to a test device and a test method for a hydraulic self-driving fast-closing isolation valve. Background technique [0002] At present, the main feed water and main steam isolation valves of nuclear power plants generally use quick-closing valves. Commonly used are high-speed electric isolation valves and hydraulically driven isolation valves. The high-speed electric isolation valve generally has a relatively large electric head, which makes the whole valve bulky and heavy in structure; the hydraulically driven isolation valve requires a separate hydraulic system, which makes the auxiliary control system of the valve complex. [0003] The main feedwater isolation valve of the high-temperature gas-cooled reactor demonstration project adopts a hydraulic self-driven fast-closing isolation valve, which can be quickly closed w...

AI Technical Summary

Problems solved by technology

However, because of its special structure, the existing test methods for fast-closing isolation valves cannot be used to guide the test of the fast-closing isolation valve for the main feed water isolation valve of this high-temperature gas-cooled reactor. Methods that can be used for reference

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