Dry-wet comprehensive flame arrester for hydrogen-oxygen mixed gas

Abstract

The invention relates to a dry-wet comprehensive flame arrester for hydrogen-oxygen mixed gas. According to the dry-wet comprehensive flame arrester, the problems that tempering, flash explosion and the like of hydrogen-oxygen mixed gas cannot be prevented in the prior art are solved. The dry-wet comprehensive flame arrester comprises a parent flame arresting tank and a child flame arresting tank which are connected through a communication pipe, as well as a control loop. According to the technical key point, a hydrogen-oxygen mixed gas outlet pipe is arranged at the top of a child flame arresting tank shell, an explosion-proof film and a pressure sensor are arranged at the bottom of the child flame arresting tank shell, and the pressure sensor is connected with the control loop; the interior of a parent flame arresting tank shell is isolated by virtue of stainless steel hole-shaped flame arresting plates and is respectively filled with a flame-arresting filler layer, a stainless steel capillary tube layer and a water seal layer from top to bottom, a safety valve connecting pipe is arranged at the top of the parent flame arresting tank shell, a hydrogen-oxygen mixed gas inlet is formed in the side wall of the water seal layer at the bottom of the parent flame arresting tank shell, and a liquid level sensor connected with the control loop is arranged on the side wall of the water seal layer at the bottom of the parent flame arresting tank shell. The dry-wet comprehensive flame arrester is reasonable in structural design, safe and reliable to use and has the functions of sealing and reverse flame arresting of a dry flame arrester, furthermore, the temperature of flame and the pressure can be reduced by virtue of a water seal and a baffle, and the damage caused by the hydrogen-oxygen mixed gas during tempering, flash explosion and detonation can be effectively prevented.

Description

technical field [0001] The invention relates to a backfire prevention device for a hydrogen-oxygen mixed gas production device, in particular to a device for preventing external flames from escaping into hydrogen-oxygen gas generators, pipelines, containers, etc. Accident hydrogen-oxygen mixed gas wet and dry integrated flame arrester. It belongs to the safety device for gas production equipment. Background technique [0002] With the development of hydrogen energy economy, equipment that uses electrolysis of water to generate hydrogen-oxygen mixed gas has been widely used as a renewable and economical clean energy source. However, due to the particularity of hydrogen-oxygen mixed gas: the combustion speed is fast , easy to flash, easy to leak, etc., it is easy to cause harm during tempering, flash explosion, and deflagration, so its application has been hindered. Because the "gas dynamic effect" produced by the flame propagating along the pipeline full of combustible gas ...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a hydrogen-oxygen mixed gas dry-wet integrated flame arrester, which solves the problems that the prior art cannot prevent the hydrogen-oxygen mixed gas from flashing back, etc. Firearms have the function of sealing and blocking fire, and can use water seals and baffles to reduce flame temperature and decompression, and can effectively prevent the harm caused by hydrogen-oxygen mixture gas in tempering, flash explosion, and deflagration.

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