Gas pipeline encounters high temperature automatic closing device

Abstract

A device for automatically turning off gas pipelines in case of a high temperature comprises the first gas pipeline and the second gas pipeline. A sleeve is connected between the first gas pipeline and the second gas pipeline in a sealed and sleeving mode. A baffle is hinged to the lower portion of a pipeline opening of the first gas pipeline. The baffle is made of soft iron. A metal frame is arranged on the periphery of the sleeve. A first magnet is arranged on the upper portion of the metal frame. A second magnet is arranged on the lower portion of the metal frame. The second magnet is made of nickel-iron alloy. The baffle, the first magnet and the second magnet are located on the same vertical line. The second magnet is connected with a heat-sensitive metal wire. The other end of the heat-sensitive metal wire is distributed in the position where the temperature needs to be measured. The two sides of the sleeve are provided with a plurality of vertical guide grooves. The metal frame is provided with a plurality of guide rods matched with the guide grooves. The device can turn off the pipelines rapidly and make a response immediately in case of the high temperature. The device cuts off gas based on the physical principle and is stable in effect, low in cost, wide in application range and high in practicality.

Description

technical field [0001] The invention relates to a fire prevention device, in particular to an automatic closing device for gas pipelines when high temperature is encountered. Background technique [0002] Pipeline gas is a combustible gas with complex chemical composition. It is transported and used under a certain pressure state, which has a great fire hazard. It will catch fire and explode when it encounters an open flame, and the consequences are quite serious. However, in the prior art, the fire prevention of gas pipelines is mainly based on prevention, and usually through some pipeline inspections, whether there is a gas leak or not is tested to solve the fire prevention problems of gas pipelines in advance. If the gas catches fire suddenly, you cannot extinguish the fire blindly. You should close the gas valve first. In many cases, once a fire occurs, it is very dangerous and difficult to manually close the gas. Therefore in the prior art, there are drawbacks in the p...

AI Technical Summary

Problems solved by technology

When the gas catches fire suddenly, it is not possible to extinguish the fire blindly. The gas valve should be closed first. In many cases, once a fire occurs, it is very dangerous and difficult to manually close the gas.

Therefore, the prevention-oriented solution in the prior art has disadvantages, once a problem occurs, the gas transmission cannot be interrupted quickly

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