Civil electromagnetic type gas emergency cut-off valve containing energy storage valve closing module

Abstract

The invention discloses a civil electromagnetic type gas emergency cut-off valve containing an energy storage valve closing module, wherein an electromagnetic coil component containing the energy storage valve closing module is connected with a valve body by a closed permanent magnetic lock component; a movable component is mounted in the valve body; the electromagnetic coil component containing the energy storage valve closing module comprises the energy storage valve closing module and an electromagnetic coil which are integrally connected by a cable; the energy storage valve closing module is provided with a redundancy control circuit, and is connected with an alarm by a cable; by the alarm, the energy storage valve closing module is supplied with power and stores energy. When a valve closing / interrupt signal of the alarm is received, the stored electric energy is automatically released by the redundancy control circuit of the energy storage valve closing module to the electromagnetic coil, so that the permanent magnetic lock is unlocked by oriented magnetic force which is generated by the electromagnetic coil, meanwhile the spring force is released to push the movable component so as to enable a sealed valve flap to close the valve, and then the valve can only be opened by manual operation. According to the civil electromagnetic type gas emergency cut-off valve, the closed permanent magnetic lock component which is made from a non-magnetic metal material is used as a valve cap, and airtight connection between a sealing component and the valve body is employed to absolutely prevent liquid or impurities from entering a permanent magnetic lock cylinder from the outer part of the valve body, thereby enhancing reliability of the permanent magnetic lock.

Description

technical field [0001] The invention relates to a civilian-grade electromagnetic gas emergency cut-off valve linked with a household gas alarm for urban gas pipelines, in particular to an electromagnetic coil device and a closed permanent magnet valve using the inventive electromagnetic coil device containing an energy storage valve closing module. The lock assembly, the movable assembly and the corresponding sealing assembly form a safer and more reliable civilian-grade electromagnetic gas emergency shut-off valve with an energy storage valve closing module. Background technique [0002] At present, the valve closing control circuit of the civilian electromagnetic gas emergency shut-off valve is a non-standard single-loop control circuit provided by the household gas alarm, and the function has a low safety level (A level). Low, such as the integral plastic structure of the electromagnetic coil and the permanent magnetic lock, there are defects such as isolating the atmosph...

AI Technical Summary

Problems solved by technology

[0002] At present, the valve closing control circuit of the civilian electromagnetic gas emergency shut-off valve is a non-standard single-loop control circuit provided by the household gas alarm, and the function has a low safety level (A level). Low, such as the integral plastic structure of the electromagnetic coil and the permanent magnetic lock, there are defects such as isolating the atmosphere with non-metallic materials and the electromagnetic coil cannot be replaced without leakage. The air intake chamber of the valve body passes through and extends to the outside through the small hole. Once the seal fails, even closing the valve cannot prevent the air leakage from the tie rod. In addition, once liquid or dust enters from the tie rod, the permanent magnetic lock will The joint end face is easily polluted or even corroded, which will seriously affect the reliability of the permanent magnet lock

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