地面水冷却循环装置的研制

Development of the Cooling Circulation Device for Surface Water

依据CRH3高速动车组牵引变流器冷却循环系统技术指标,研制的地面水冷却循环装置主要由板式换热器、内循环系统、外循环系统和电控柜构成。经选型计算,采用德国萨莫威孚TL90 KCCL型板式换热器,共17片不锈钢板片,板片总面积为4.1 m2,传热功率为209.9 kW;内侧和外侧循环泵分别选用格兰富TP50—190/2型水泵和凯泉KQL65/110—2.2—2型水泵;冷却塔选用GBNL—3/20T型冷却塔;选用西门子SKB62型电动液压阀门执行器,与配置的西门子VVF45.50型调节阀构成冷却液流量调节器;选用可编程的西门子ACX32型控制器;构建了远程监控系统。该装置已应用于CRH3和CRH350牵引变流器机组出厂例行的试验和型式试验。

The cooling circulation device for surface water is developed according to the technical specification for the cooling circulation system of the traction converter of CRH3 high speed EMU.It mainly consists of the plate heat exchanger,the inner circulation system,the outer circulation system and the electrical control cabinet.Through calculation and selection,Thermowave TL90 KCCL plate heat exchanger from Germany is adopted,which consists of 17 pieces stainless steel plates.The total area of the plates is 4.1 m2 and the thermal power of 209.9 kW can be conducted by it.Grundfos TP50—190/2 pump and the Kaiquan KQL65/110—2.2—2 pump are adopted respectively as the inner circulating pump and the outer circulating pump.GBNL—3/20T cooling tower is adopted as the cooling tower.The flow regulator of the cooling fluid is composed of Siemens SKB62 electrohydraulic valve actuator and Siemens VVF45.50 control valve.Siemens ACX32 programmable controller is adopted.The remote monitoring and control system is established.This device has been used for the routine test and the type test for the traction converter unit of CRH3 and CRH350 EMU.