Pipeline electric fast safety valve with power-off automatic reset function

Abstract

The invention provides a pipeline electric fast safety valve with automatic power-off reset function. The safety valve is provided with a hanging arm and an electromagnetic clutch reset device in sequence on the valve stem. The counterweight is hung on the hanging arm, and the main control box Located on the upper part of the driver; the opening / closing of the valve sends a signal through the control system of the main control box, usually the valve is in an open state, when the pressure in the pipeline is too low or there is gas leakage, the pressure alarm sensor on the pipeline will send out a signal The signal is sent to the control system of the main control box, and the control system sends a control signal after comparing with the set value to make the driver act, thereby opening / closing the valve quickly. The effect of the present invention is that the pipeline electric fast safety valve can cut off or open the pipeline in time and accurately in an emergency, and the fast safety valve of the pipeline can still be closed / opened when the power is cut off, so as to avoid secondary disasters. The fast safety valve has reasonable structure, sensitive and reliable operation, convenient maintenance and fast action speed. It is an indispensable safety device in the control of gas furnaces in metallurgy, petrochemical, power station, building materials and other industries.

Description

technical field [0001] The invention relates to an electric fast safety valve for pipelines, in particular to an electric fast safety valve for pipelines with the function of automatic reset after power failure. Background technique [0002] Safety valves are automatic valves, mainly used in boilers, pressure vessels and pipelines, to control the pressure not to exceed the specified value, and play an important role in protecting personal safety and equipment operation. As a common and commonly used tool, the market application of safety valves The range is extremely wide, and its action reliability and performance are directly related to the safety of equipment and people. [0003] With the enhancement of people's environmental awareness and sense of social responsibility, and the improvement of national environmental protection policies, natural gas and coal-based gas have replaced coal, which can cause heavy pollution, in power generation, metallurgy and other industries ...

AI Technical Summary

Problems solved by technology

Especially when extreme situations occur, such as major disasters such as fires, earthquakes or floods that cause power outages, general electric safety devices will not work, resulting in greater secondary disasters

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