Protection system of high-temperature and high-pressure valve

Abstract

The invention belongs to the technical field of valves, and relates to a protection system of a high-temperature and high-pressure valve, in particular to a protection technology specific to the highpressure difference before and after opening of the high-temperature and high-pressure valve. An outlet of a high-temperature valve is connected with a protection valve. A spray pipe is connected withthe rear portion of the protection valve. The protection valve controls a piston to move up and down by adjusting pressure in an air cylinder, a valve element is driven to move up and down through avalve rod, and rapid opening and closing of the valve are achieved. Certain flow of constant temperature air by opening the protection valve, thus, the pressure of the outlet and the pressure of an inlet of the high-temperature and high-pressure valve are in a relative balance state, and safe and reliable operation of the valve under the high-pressure working conditions is ensured. The high-temperature and high-pressure valve can be applied to heat accumulation type heater systems and experimental equipment and other industrial fields.

Description

technical field [0001] The invention belongs to the technical field of valves, specifically, it is a protection technology for large pressure difference before and after high-pressure and high-temperature valves are opened. Background technique [0002] In the current industry, for example, the maximum working temperature of chemical combustion furnaces is 1300K, but the pressure is very low, usually lower than 1MPa. The high-temperature, high-pressure quick-response switching valve of a similar system has been developed by foreign companies such as Fluidyne, and the "Ramjet Test Facility (RJTF)" in the report of the Japan Aerospace Technology Research Institute has proposed a similar high-temperature and high-pressure valve protection idea, but only a brief introduction There is no specific structure, other than that, there are no other relevant documents and similar patents. Although the working temperature of some domestic valves can reach 1600K, the working pressure is ...

AI Technical Summary

Problems solved by technology

However, for the protection of high-temperature and high-pressure valves, especially ultra-high-temperature fast valves with a high-temperature capacity above 1800K and a pressure resistance above 5MPa, there are currently no high-temperature valve products and similar protection measures that can meet the conditions in China.

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