Normally closed type guide type gas anti-explosion valve

Abstract

The invention discloses a normally closed type guide type gas anti-explosion valve, belongs to gas valves and particularly relates to a gas anti-explosion valve with a guide structure. The normally closed type guide type gas anti-explosion valve comprises a valve body, a valve cover, a valve cup and an electromagnetic controller and is characterized in that the valve body and an upper valve cover are connected through a fixed bolt, the upper portion of the upper valve cover is connected with the electromagnetic controller composed of a non-magnetic pipe assembly and an electromagnetic head, a guide sleeve is arranged in an upper opening of the valve body, a valve cup assembly is installed in the guide sleeve, an upper connection nut and a lower connection nut which are mutually connected are installed in the valve cup assembly, a guide valve assembly is installed in a connection nut inner hole, a movable iron core is installed in a non-magnetic pipe inner hole, the top of a non-magnetic pipe is welded with a static iron core, and a vertical inner hole used for installing a manual assembly is arranged at the center of the valve body. The valve adopts the guide structure in design, adopts the operation mode that the manual mode and the electric mode are combined, and is simple in structure, quick in opening and closing, good in sealing performance, convenient to operate and use and capable of being used in high pressure gas pipe network.

Description

technical field [0001] The invention belongs to a gas valve, in particular to a gas explosion-proof valve with a pilot structure. Background technique [0002] The valves commonly used in the gas pipeline network, the normally closed gas explosion-proof valve is a better one. When the valve needs to be opened due to work needs, the coil of the electromagnetic cut-off controller is energized. At this time, the moving iron core is attracted to the static iron core under the action of magnetic force, and at the same time drives the valve stem assembly to move upward, and the valve opens; if the power is removed, the magnetic force disappears. , the valve is closed under the action of the gravity of the valve stem assembly, the moving iron core and the elastic force of the iron core spring. But the valve can only be opened when there is electricity, and the valve cannot be opened without electricity, which sometimes brings inconvenience to the user, and there is no pilot struct...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiency that the existing normally closed valve cannot be opened without electricity and is not easy to open the valve when the pressure is high, the present invention provides a normally closed pilot gas explosion-proof valve, which can not only Open the valve, and there is no power to open the valve manually

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