Anti-explosion valve for hydrogen aerostat

Abstract

The invention discloses an explosion-proof valve for a hydrogen aerostat. The explosion-proof valve comprises a valve seat, a valve cover, a push rod, an explosion-proof linear motor and a connecting piece, the valve seat is provided with an air hole penetrating in the axial direction of the valve seat, and the valve deck abuts against one end face of the valve seat in a sealed mode. The push rod is arranged in the vent hole, one end of the push rod extends out of the vent hole and is fixedly connected with the valve deck, the other end of the push rod extends out of the vent hole and is fixedly connected with an output shaft of the anti-explosion linear motor, and the anti-explosion linear motor is fixedly connected with the valve seat through a connecting piece. According to the anti-explosion valve, the push rod can be directly driven by the anti-explosion linear motor to move so that the valve cover and the valve seat can abut against each other in a sealed mode or be separated from each other to achieve opening and closing of the anti-explosion valve, and meanwhile hydrogen can be prevented from permeating into the anti-explosion linear motor or reduced.

Description

technical field [0001] The invention relates to the technical field of aerostats, in particular to an explosion-proof valve for a hydrogen aerostat. Background technique [0002] At present, most of the buoyant gas used in aerostats is helium, which is an inert gas. Because of its stable performance and reliable use, it has always been favored by the aerostat field. Regeneration is a rare strategic resource. Hydrogen has the advantages of easy preparation, complete autonomy and control, and low price. However, due to its active chemical properties, special attention should be paid to the safety during use. For example, when the valve is opened and exhausted, hydrogen may penetrate into the motor. Inside, if arcs, sparks, etc. are generated during the operation of the electrical components of the motor, there is a danger of igniting and detonating hydrogen. SUMMARY OF THE INVENTION [0003] In order to solve the technical problems existing in the background art, the prese...

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Problems solved by technology

[0002] At present, most of the buoyancy gas used for aerostats is helium, which is an inert gas. Because of its stable performance and reliable use, helium has been favored in the field of aerostats. However, helium is seriously scarce in China, highly dependent on imports, expensive and unavailable. Regeneration is a rare strategic resource

Hydrogen has the advantages of easy preparation, complete self-controllability, and low price. However, due to its active chemical properties, it is necessary to pay special attention to the safety during use. For example, when the valve is opened to exhaust, hydrogen may penetrate into the motor. If arcs, sparks, etc. are generated during the operation of the electrical components of the motor, there is a danger of igniting and detonating hydrogen gas.

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