A high safety pipeline fire extinguisher

Abstract

The invention relates to the field of fire arresting equipment for gas pipelines, and discloses a pipeline fire arrester with high safety, which includes a first fire arresting shell and a second fire arresting shell connected by flanges, and the first fire arresting shell The inner part of the connection with the second fire-resistant shell is fixed with a fire-resistant core disk, and the extension of the fire-resistant core disk is provided with several small channels. The middle part of the fire-resistant core disk is movable and equipped with a linkage shaft. One end of one end is fixedly connected with a first baffle plate located on one side of the gas pipeline inside the first fire arresting shell. This high-safety pipeline fire extinguisher, through the structural design of the fire-blocking core plate and the moving limit gas transmission sleeve in the second fire-blocking shell, under normal conditions, the position-limiting gas transmission sleeve is in the direction of the fire-blocking casing as a whole. The movement trend of the core disk, when a flashback occurs, the flame enters the flame arrester from the first flame arrester shell, and the flame is divided into many small flame streams by the small channel at the fire arrester core disk, so that it is extinguished without affecting its Continue to deliver.

Description

technical field [0001] The invention relates to the field of gas pipeline fire arresting equipment, in particular to a pipeline fire arrester with high safety. Background technique [0002] The flame arrester is a device that prevents external flames from entering the equipment and pipelines that contain flammable and explosive gases, or prevents flames from spreading between equipment and pipelines. Tempering will cause fire, explosion and other accidents in the pipeline. The fire prevention principle is as follows: the fireproof core in the flame arrester is composed of many small channels or pores. When the flame enters these small channels, many small flame streams are formed. Due to the channels or The heat transfer area of ​​the pores is large. When the flame passes through the channel wall and performs heat exchange, when the temperature drops to a certain level, the flame is extinguished. [0003] However, in order to improve the fire prevention effect, the diameter...

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Problems solved by technology

[0003] However, in order to improve the fire prevention effect, the diameter of the small channel in the existing pipeline fire extinguisher is very small, which makes, when the gas in the small channel is extinguished, the carbon deposit produced by the insufficiently burned gas accumulates when flashback occurs. In the small channel, it is easy to cause the problem that the subsequent gas cannot pass through, and the fire preventer cannot be used normally, and when the combustion in the pipeline can cause a more harmful detonation shock wave, the huge impact will damage the flame arrester, making the existing Reduced service life of the flame arrester

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