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《川煤科技》1975年2期刊登“多风机矿井风机工作点的确定”一文中曾论及分区小井抽出式通风系统的设计计算,并指出将风阻特性曲线变为直线,则此计算将变得非常简单.本文以纵轴h不为等分刻度而为方根刻度,将风阻曲线变为直线的图解法作如下说明.风阻特性曲线变为直线的理论,已在《煤炭科学技术》1975年2期35—37页介绍,通风网路图解法根据风网结构的复杂程度及计算者的熟练程度,可分别采用以下三种图解法:1.动坐标图解法,2.综合图解法,3.逐孔图解法.此三种方法的原理相
“Chuan Coal Science and Technology” 1975 the 2 published “multi-fan mine fan work point to determine,” has referred to the design and calculation of sub-district small well-pumping ventilation system, and pointed out that the wind resistance curve into a straight line, then this calculation will change Is very simple.In this paper, the vertical axis h is not equal to the scale and the square root of the scale, the wind resistance curve into a straight line graph method as follows.Hydrost property curve into a straight line theory, in “Coal Science and Technology” 1975 Year 2, pp. 35-37 Introduction, Ventilation Network Schematic According to the complexity of the wind network structure and the proficiency of the calculators, the following three schemes can be used respectively: 1. Graphical method of moving coordinate, 2. Integrated graph method, 3. Hole-by-hole graphic method. The principle of these three methods