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随着采掘水平的加深和机械化程度的提高,致使井下热环境日益恶化,今后的对策可能是:①在条件允许时,特别是在基建、开拓期间,直接水冷掘进迎头可大大提高致冷效果,并可利用品质系数来描述风—水的换热工况:②为了消除井下高压冷水管路,缩小温度跃迁,高低压转换器可能在技术与经济上比斗轮式水轮机略胜一筹;③用冰来对井下进行空调有助于减小冷水量,缩减输水有关费用,但输冰是一个难题。文中介绍了风力管道输冰工业性初步试验的结果。它是一个有发展前途的向井下输冷技术。
With the deepening of the level of excavation and the enhancement of the degree of mechanization, the thermal environment in the underground will worsen. The future measures may be as follows: ① When the conditions permit, especially during infrastructure construction and exploration, direct water heading can greatly enhance the cooling effect, And can use the quality factor to describe the wind-water heat transfer conditions: (2) in order to eliminate the underground high-pressure cold water pipelines, reduce the temperature transition, high-low pressure converter may be technically and economically better than bucket-wheel turbine; Ice to air-conditioning downhole helps to reduce the amount of cold water, reducing water-related costs, but the ice is a problem. In this paper, the results of industrial preliminary test of wind pipeline transportation are introduced. It is a promising underground cooling technology.