Environment-friendly explosion-resistant material for rapidly and efficiently inhibiting hydrogen explosion

Abstract

The invention relates to an environment-friendly explosion-resistant material for rapidly and efficiently inhibiting hydrogen explosion. The explosion-proof material is composed of sodium alginate and sodium silicate and smeared on the outer side of the porous iron-nickel alloy structure in the pipe gallery, hydrogen explosion can be further restrained, hydrogen leakage is reduced, and the possibility of hydrogen embrittlement and hydrogen damage is restrained. The sodium alginate is [C6H7O6Na] n, the sodium silicate is Na2SiO2. 9H2O and Na2O, the content of the sodium silicate is 19.3-22.8% of that of the explosion-proof material, and the ratio of the content of the Na2O to the content of the SiO2 is 1.03 + / -0.03. The material is smeared on the outer side of a porous iron-nickel alloy structure, the defect of the porous structure in space can be overcome, combustion and explosion of the porous structure can be directly and powerfully prevented at the hydrogen leakage position, the explosion resistance effect can be enhanced, and the hydrogen leakage possibility is reduced. The high-temperature-resistant coating is suitable for being smeared on places such as pipe galleries for conveying H2, hydrogen refueling stations, hydrogen storage containers, new energy vehicles existing in limited spaces and the like which have the possibility of hydrogen leakage and have the danger of burning explosion.

Description

technical field [0001] The patent of the present invention belongs to the field of safety engineering for suppressing explosion, and specifically relates to an environmentally friendly, fast and efficient anti-explosion material for suppressing hydrogen explosion, which is especially suitable for fire and explosion resistance of industrial pipelines that transport unstable and explosive gas. And the resulting coating helps prevent hydrogen damage such as gas leakage and hydrogen embrittlement. Background technique: [0002] With the rise and development of clean energy, and the proposal and vigorous implementation of China's dual-carbon plan, hydrogen energy has always been regarded as the ultimate energy source to solve the future human energy crisis. Compared with traditional fossil energy, hydrogen energy is rich in reserves, high in calorific value, and does not produce toxic and harmful or greenhouse gases during the combustion process, which is truly non-toxic, zero-em...

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Problems solved by technology

However, hydrogen is colorless, odorless, and extremely active in chemical properties. When the hydrogen content in the air is within 4.1% to 75.9%, it will burn and explode when encountering sparks, and the minimum ignition energy required is only 0.019mJ

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