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充分考虑到暖通空调领域同程系统支路流体流动方向的不确定性,本文建立了1种实用的同程系统管网动态水力特性的数学模型,并基于实际工程资料,模拟分析了同程系统在应用过程中存在的问题。研究结果表明:同程系统的最不利环路位于系统的中间支路,中间支路流量存在流速过慢、停止,甚至逆向流动的现象,系统可调性较差。建议引入动态水力特性的计算方法,用于解决同程系统的水力失调问题。
Taking full consideration of the uncertainty of fluid flow direction in the same branch of HVAC system, this paper established a practical mathematical model of the dynamic hydraulic characteristics of the same system of pipe network. Based on the actual project data, System in the application of the existing problems. The results show that the most unfavorable loop in the same system is located in the middle branch of the system, and the flow in the middle branch has the phenomenon of too slow flow, stop or even reverse flow, and the system has poor adjustability. It is suggested to introduce the calculation method of dynamic hydraulic characteristics to solve the hydraulic imbalance problem of the same system.