A super-fine water spray combustion and explosion suppression method for combustible gas and dust conveying pipelines

Abstract

The invention provides a super-fine water spray combustion and explosion suppression method for combustible gas and dust conveying pipelines. Super-fine water spray with a micron-level particle size is spread rapidly for a long distance along with high speed gas flow in a pipeline, so that the internal humidity of the pipeline is increased, electric charges generated by friction are neutralized and static electricity on the inner wall of the pipeline is eliminated; super-fine water spray molecule groups cover combustible gas and dust mixtures fully to isolate the combustible gas and dust mixtures from oxygen; the super-fine water spray is easy to gasify, thereby absorbing the heat in an ambient environment greatly and inerting the combustible gas and dust mixtures. Super-fine water spray producing devices can be installed and distributed reasonably according to the length and the opening diameter of a pipeline to protect the combustible gas and dust conveying pipelines comprehensively around the clock and eradicate the hidden danger of combustion and explosion.

Description

technical field [0001] The invention relates to the field of flame suppression and explosion suppression for combustible gas and dust transportation pipelines, in particular to a method for suppressing combustion and explosion suppression by fine water mist in combustible gas and dust transportation pipelines. Background technique [0002] In the fields of coal mine gas drainage pipelines, natural gas pipelines, gas dust pipelines in chemical plants, etc., the suppression of combustion and explosion in pipelines is a very important and indispensable technology. [0003] In the above-mentioned pipelines, combustion and explosion phenomena are relatively frequent. The main reason is that in the pipeline, high-speed airflow, dust and friction and collision with the inner wall of the pipeline generate static electricity. When the static electricity cannot be eliminated in time, a large amount of positive and negative charges will accumulate, resulting in a potential difference,...

AI Technical Summary

Problems solved by technology

[0010] Although the above three methods have produced certain effects in the use of combustible gas and dust conveying pipelines to suppress combustion and explosion, they also have great disadvantages.

These three existing methods are all passive flame suppression and explosion suppression, which cannot fundamentally solve the problem of combustion and explosion in combustible gas and dust conveying pipelines

Once the pipeline explodes, the prior art methods and devices cannot effectively prevent the explosion from damaging the pipeline in a timely manner

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