风网稳定性的定量分析

Quantitative analysis of ventilation network stability

矿井通风系统是一个动态过程,系统内各参数是随时间而变化的,研究它们的变化过程与变化规律就是稳定性分析。讨论当Δr≠0时,如何确定Δq、Δh。同时针对不同的通风网路形式,不同的通风网路规模,建立其稳定性分析的数学模型。网路中的每一次变化都遵循风流流东的基本规律,即符合阻力定律、风量平衡定律和风压平衡定律。对通风网路的稳定性研究主要讨论网路中风流的稳定性,它包括风量和风流方向两部分,即量和质。讨论通风网路的稳定性,建立一组稳定性分析的数学模型。为定量分析风网的稳定性提供一种新的途径。

The mine ventilation system, whose parameters are time-varying, is a dynamic course. The stability analysis studies the variable course and law of ventilation system. WhenΔr is not zero, how are the value Δq andΔh determined. Simultaneously, in view of different forms and scopes of ventilation network, the corresponding mathematic model is established for the stability analysis. Every change of ventilation network follows the ultimate law of airflow flowing, namely confirming to resistance law, balance law of air quantity and air pressure. The study on stability analysis mainly discusses the airflow stability in ventilation network., which includes air quantity and airflow direction, namely quantity and quality. The stability is discussed for the ventilation network, and a mathematical model is established for the stability analysis. It provides a new way to quantitative analysis of ventilation network stability.