活塞式冷水机组冷却水系统运行调节特性的实验研究
Experimental study of cooling water regulation characteristics for reciprocating chiller system
摘要：
以某医用办公楼集中空调冷却水系统为研究对象，介绍了其集中空调系统及智能控制系统、实验的测试条件及控制策略。在冷负荷和室外环境温度变化不大的情况下，对冷却水系统的冷却水泵和冷却塔风机联合变频控制进行了实验研究。分析了调节过程中的设备间耦合性、调节惰性和稳定性等；并对比分析了不同控制策略下的综合节能率，验证了对冷却水泵和冷却塔风机联合变频控制策略的优势，为空调冷却水系统优化控制提供了参考。
Abstract：
Taking the cooling water system of central air conditioning in a medical office building as the research object, presents the central air conditioning system, intelligent control system, test conditions and control strategy. Carries out the experimental study on variable frequency control of cooling water pumps combined with fans of cooling tower in the stable condition of the cooling load and outdoor air temperature. Analyses the devices’ characteristics of coupling, adjusting inertia and stability in the adjustment process. Furthermore, studies and compares the integrated energy saving rates under different control strategies. Analyses and verifies the advantages of combined frequency control strategy in the control of the cooling water pump and tower fans, which provides a useful reference for optimal control of the air conditioning system.
Keywords:reciprocatingchiller,coolingwatersystem,regulationcharacteristic,controlstrategy,energysavingrate