价格:88880起
深圳市文惠同利机械设备有限公司
联系人:罗朝刚
电话:13632618161
地址:广东省深圳市光明新区田寮*五工业区18栋
产品规格:900*1250*900
产品数量:100 个
包装说明:900*1250*900
关 键 词:冷水机,冷冻机,冰水机,制冷机,制冰机,冷却机
发布时间:2015-07-17
特点 ▲ 螺杆式冷水机的主要控制参数为制冷性能系数,额定制冷量,输入功率以及制冷剂类型等。 ▲ 冷水机组的选用应根据冷负荷及用途来考虑。对于低负荷运转工况时间较长的制冷系统,宜选用多机头活塞式压缩机组或螺杆式压缩机组,便于调节和节能。 ▲ 选用冷水机组时,**考虑性能系数值较高的机组。根据资料统计,一般冷水机组全年在**负荷下运行时间约占总运行时间的1/4以下。总运 行时间内**、75%、50%、25%负荷的运行时间比例大致为2.3%、41.5%、46.1%、10.1%。因此,在选用冷水机组时应**考虑效率曲线比较平坦的机型。同时,在设计选用时应考虑冷水机组负荷的调节范围。多机头螺杆式冷水机组部分负荷性能优良,可根据实际情况选用。 ▲ 选用冷水机组时,应注意名义工况的条件。冷水机组的 实际产冷量与下列因素有关: A)冷水出水温度和流量; B)冷却水的进水温度、流量以及污垢系数。 ▲ 选用冷水机组时,应注意该型号机组的正常工作范围,主要是主电机的电流限值是名义工况下的轴功率的电流值。 ▲ 在设计选用中应注意:在名义工况流量下,冷水的出口温度不应**过15℃,风冷机组室外干球温度不应**过43℃。若必须**过上述范围时,应了解压缩机的使用范围是否允许,所配主电机的功率是否足够。 ▲ Screw the main control parameters for the chiller cooling coefficient of performance, the rated cooling capacity, input power and the type of refrigerant. ▲ Chiller selection should be based on the cooling load and use to consider.Low-load operation conditions for longer periods of time cooling system,should use more head piston compressor or screw compressor, easy to adjust and energy. ▲ Selection of chillers, priority is given a higher coefficient of performance of the unit. According to statistics, the annual general chillers running at ** load, the total time to run time of 1/4 or less. The total running time of **, 75%, 50%, 25% load ratio of the running time of roughly 2.3%, 41.5%, 46.1 %, 10.1 %. Therefore, the choice should be given priority chillers relatively flat efficiency curve models. Meanwhile, the selection should be considered in the design chiller load adjustment range. Multi-head screw chiller part-load performance, can be selected according to the actual situation. ▲ Selection of chillers, the state should pay attention to volunteers conditions. Actual chiller cooling capacity with the following factors: A) cold water temperature and flow;