NGC300进水大修

Vyper变频控制器:是与约克螺杆机组配套的专用压缩机组变频控制器,采用 Vyper变频器在压缩机部分负荷时保持机组高效率,降低压缩机组的运行消耗,节省运行费用。丙烷制冷原理:是利用液体丙烷在绝热条件下膨胀汽化,内能降低,自身温度随之下降而达到对工艺介质降温的目的。丙烷制冷属蒸汽压缩制冷法,它包括四个过程:压冷凝、膨胀蒸发、制冷。压缩:是利用丙烷压缩机对丙烷蒸气进行压缩,提高丙烷蒸气的压力和温度;冷凝:将压缩后的高温气态丙烷通过风冷式冷却器冷凝成液态丙烷;快安佳（济南）工业技术可以维修的约克工业冷冻螺杆机机组组合计：RXB12、RXF12、RXB24、RXF24、RXF58、RXF58、RWB-II60、RWB-II38、RWB-II100、RWB-II134、RWB-II177、RWB-II222、RWB-II270、RWB-II316、RWB-II399、YS chiller (S7 compressor）、RWB-II480、RWB-II496、RWB-II496、RWB-II496、RWB-II496、RWB-II676、RWB-II676、RWB-II856、RWB-II856、RWB-II1080、RWB-II852、RWB-II1179、RWB-II1395、RWF100、RWF134、RWF177、RWF222、RWF270、RWF316、RWF399、RWF480、RWF546、RWF-II496、RWF-II676、RWF-II 856、RWF-II1080.