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为解决煤矿生产中粉尘的严重危害 ,研制了一种新型通风机———风幕集尘风机 .介绍了其构造及在煤矿中的应用 ,提出了短路流场理论 .半自由状态下的短路流场是平行平面流、环形紊流射流及汇流叠加而成 .通过流场叠加原理 ,建立了流场数学模型 ,为煤矿综掘及相关的粉尘治理工程增加了一项新的技术与新型产品 .
In order to solve the serious hazard of dust in the coal mine production, a new type of ventilator, air curtain dust collecting fan, is introduced. Its structure and its application in coal mines are introduced and the theory of short circuit flow field is proposed. The flow field is composed of parallel plane flow, annular turbulent jet and confluence, and the flow field mathematical model is established by the superposition principle of flow field, which adds a new technology and new product for coal mining and related dust control engineering .