Spring relaxation opening valve coincide type fuel gas electric machine magnetic control safety valve

A safety valve and gas technology, applied in the direction of valve lift, valve details, valve device, etc., can solve the problems of poor airtight performance, prone to combustion, explosion accidents, short valve opening stroke, etc., to ensure safety and reliability , Eliminate potential safety hazards and reduce pressure loss

Inactive Publication Date: 2007-04-18
SHANGHAI JIENENG ENVIRONMENT PROTECTION HIGH TECH
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AI Technical Summary

Problems solved by technology

Since the sealing measures of this type of structure are not enough to completely block the passage between the motor and the gas, once the electric spark generated when the motor is in contact with flammable and explosive gases, it is very easy to cause combustion and explosion accidents, which will seriously affect people's lives. Property security poses a serious threat
At the same time, limited by the transmission structure of this type of valve, the valve opening stroke is relatively short, resulting in a relatively large pressure loss, and because the valve cover of this type of valve swings relatively large during operation, not only the airtight performance is poor when the valve is closed, it is easy to cause internal leakage. Leakage, moreover, leads to a higher failure rate

Method used

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  • Spring relaxation opening valve coincide type fuel gas electric machine magnetic control safety valve
  • Spring relaxation opening valve coincide type fuel gas electric machine magnetic control safety valve

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Embodiment Construction

[0010] A spring expansion and opening valve reclosing type gas motor magnetically controlled safety valve, the structure of the valve core is mainly composed of a group of magnetic steels of the same sex repelling each other and a spring, a fully enclosed motor box, a motor screw transmission mechanism, and a U-shaped valve cover mechanism , and the valve body, etc., its characteristics are: a. Provide a main magnet and auxiliary magnet with the same repulsion and a spring structure as the power source for opening and closing the valve; b. Provide a motor box and the displacement of the main magnet A fully enclosed motor box with box structure; c. Provide a motor screw transmission mechanism that drives the displacement of the main magnet steel, sealed in the inner cavity of the fully enclosed motor box; d. Provide a spring, integrated with the valve cover and auxiliary magnet steel as a whole , U-shaped valve cover mechanism with synchronous movement; e. The U-shaped valve cov...

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Abstract

The techanical characteristic of the inventions is that: by using an organic combination of a set of homopolar repulsion main and secondary magnetic steels and springs, the repulsion of the main and secondary magnetic steels can finish closing the valve and the spring tension can finish opening the valve. Because of forming a isolation belt in the magnetic field space between the main and secondary magnetic steels, the motor can be mounted in the totally-enclosed motor case to achieve the goal of separating the motor from gas completely and reliably.

Description

technical field [0001] The invention belongs to the technical field of gas motor valves, and in particular relates to a gas motor safety valve used in pipelines of inflammable and explosive gases, measuring instruments and the like. Background technique [0002] At present, the commonly used gas motor valve is composed of two parts, the valve core and the valve body. However, in the IC card gas meter, the IC card gas meter casing is regarded as the valve body, and its gas outlet port is regarded as the valve body. The outlet port has an existing example of using the spool independently. Therefore, the performance and quality of the spool have become the key technology in the construction of gas motor valves. Usually, the technical solutions used by the spool mainly include: driven by the motor, through the spur gear teeth Driven by strips or gears and screws, the displacement of the valve cover is pushed to complete the opening and closing of the valve. Since the sealing me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/00F16K31/02
Inventor 王寅
Owner SHANGHAI JIENENG ENVIRONMENT PROTECTION HIGH TECH
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