变流量空调水系统稳定性的分析及试验研究  

Stability analysis of air conditioning water system in variable water volume system and experimental investigation

作　　者：李彬[1] 肖勇全[1] 马秀力[1] 

机构地区：[1]山东建筑工程学院热能工程学院,山东济南250101

出　　处：《制冷与空调（四川）》2005年第1期7-12,共6页Refrigeration and Air Conditioning

基　　金：北京市重点试验室开放课题资助(KF200415)

摘　　要：为了探讨压差控制的稳定性,提高该控制方式的节能效果,通过水力稳定度的计算,阐述了水力稳定度对水系统稳定性关系,并讨论了变流量空调水系统中压差设定值及定压点位置对各水力稳定度的影响。最后得出结论:定压点越靠近循环泵,系统总体稳定性越好,但这却降低了水泵的节能效果,压差设定值大小对水力稳定度没有影响。In order to probe into the stability of pressure difference control and to improve its energy-saving effects, relationship of waterpower stability and degree of stability is analysed through calculation of degree of stability, influence of pressure difference value and its setpoint on stability of each branch is also discusseded. Conclusions are drawn that the stability of the system is good while the setpoint is near the pump, but it deduces the energy-saving of pump, and that pressure difference value have no effect on stability.

关 键 词：压差控制 水力稳定 变流量空调水系统 控制点 

分 类 号：TU831.36[建筑科学—供热、供燃气、通风及空调工程]