Plugging device for gas ventilation end cap

Abstract

The invention discloses a plugging device for a gas ventilation end cap. The plugging device for the gas ventilation end cap comprises a signal receiver, a first screw cap, a fixed piece, a fire-retardance ventilation control device, bolts, a second screw cap, a left flange plate, a left end cap, a right end cap, a right flange plate, screw holes and ventilation holes. The right flange plate is welded to the right end of the right end cap. The fire-retardance ventilation control device is arranged, and the plugging device is opened during work, so that gas normally passes through without affecting normal use. When the plugging device is not used, a pipeline is closed by using a fire-retardance plate. The fire-retardant plate is a solid material with a plurality of small passages or gaps, wherein the gas can pass through the fire-retardant plate. When the passages or gaps are small enough, the flame is divided into a plurality of small flame flows by the fire-retardant plate after the flame enters the fire-retardant plate. Due to the heat transfer effect and the wall effect, the flame flows are quenched, the air pressure balance at both ends of the pipeline can be maintained, the fire can be prevented from spreading, and the safety factor is high.

Description

technical field [0001] The invention relates to a plugging device for a gas venting end cap, which belongs to the field of venting end caps. Background technique [0002] The vent cap is a port fixed at the end of the pipe or at the connection of two pipes. It can ventilate and also play a fixed role. There are many kinds of materials, some can be fireproof, and some are anti-oxidation, depending on the use environment. To choose, when the current technical public equipment is applied to the end of the gas pipeline or the connection port of two pipelines, if the gas pipeline leaks at this time and the inside of the pipeline catches fire, because the pipeline is connected, it cannot stop the fire, and it is difficult to control the fire. Carrying out isolation and control will cause a larger fire, or even cause an explosion, and the safety factor is low. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the purpose of the present invention is ...

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Problems solved by technology

[0003] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a plugging device for a gas vent end cap, so as to solve the problem that the equipment commonly used in the current technology is applied to the end of a gas pipeline or to the connection port of two pipelines. When the gas pipeline leaks, the inside of the pipeline catches fire. Since the pipeline is connected, it is difficult to block and control the fire, which will cause a larger fire and even cause an explosion. The problem of low safety factor

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