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一、前言我们国家从事液氮灭火研究试验工作只是从八十年代初才开始,起步较晚。但近几年来颇见成效。我们阜新矿务局从1981年8月成立液氮防灭火研究试验小组以来,先后取得了液氮制取、贮存、装运等工作的成功。1983年曾两次进行液氮对矿井灭火的模拟试验。我们认为液氮做为消灭井下火灾的一种手段是
First, the preface Our country engaged in research and experimental work on liquid nitrogen fire extinguishing only from the early 1980s, started late. But in recent years quite satisfactory results. Since we set up the Liquid Nitrogen Fire Extinguishing Research and Experimental Group in August 1981, Fuxin Mining Bureau has successively achieved the success of liquid nitrogen production, storage and shipment. In 1983, two simulations were carried out to simulate the fire extinguishing in coal mines. We consider liquid nitrogen as a means of extinguishing a downhole fire