Spring magnetic control superposed type fuel gas motor relief valve

Abstract

The invention discloses a spring-magnetic control coincidence fuel gas electric motor valve and is technically characterized in that a group of main steel magnets and auxiliary steel magnets, unlike poles of which attract each other are combined with a spring organically; the main steel magnets and the auxiliary steel magnets attract each other to complete the valve opening, while the spring extends to complete the valve closing; the circulation of main and auxiliary magnets absorption and spring extension complete the opening and closing; as an isolation area is formed between in the magnetic field space between the main steel magnets and the auxiliary steel magnets, an electric motor is arranged in an fully closed electric case to completely and reliably isolate the electric motor and the fuel gas; moreover, as a valve cover mechanism partly overlaps with the fully closed electric case, the overall height of the valve is reduced to meet the market requirement for a small valve. Meanwhile, the valve is characterized with the large stroke of valve opening and closing, the small pressure loss, the low failure rate, and so on, so the valve is well worth spreading.

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...

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

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