上海螺桿冷水機螺桿式冷水機因其關鍵部件-壓縮機采用螺桿式故名螺桿式冷水機,機組由由蒸發(fā)器出來的狀態(tài)為的氣體冷媒;經(jīng)壓縮機絕熱壓縮以后,變成高溫高壓狀態(tài)。被壓縮后的氣體冷媒,在冷凝器中,等壓冷卻冷凝,經(jīng)冷凝后變化成液態(tài)冷媒,再經(jīng)節(jié)流閥膨脹到低壓,變成氣液混合物。其中低溫低壓下的液態(tài)冷媒,在蒸發(fā)器中吸收被冷物質的熱量,重新變成氣態(tài)冷媒。氣態(tài)冷媒經(jīng)管道重新進入壓縮機,開始新的循環(huán)。這就是冷凍循環(huán)的四個過程,也是螺桿式冷水機的主要工作原理。
上海螺桿冷水機一般為大型冷水機,一般30HP以上,分為單螺桿和多螺桿式,冷卻方式則又分為風冷式和水冷式,選用哪種形式主要因環(huán)境,位置空間而定;
特點:
壓縮機高低壓保護,內(nèi)過熱保護
低水位報警裝置,低水溫防冰警報
采用歐美日進口壓縮機(漢鐘萊富康)
制冷系統(tǒng)焊接口采用無氧焊接法,減少氧化物,表面光滑
節(jié)流部件采用丹麥丹佛斯、美國艾柯
電磁閥過濾器采用丹麥丹佛斯
采用不銹鋼板式,盤管式,殻管式,翅片式高效換熱器
RS485通訊功能,實現(xiàn)自動化管理
電器采用OMRON.FUJI.TE.LGMOELLER.SCHNEIDER
控制方式:采用進口微電腦或PLC控制
安全保護完善,故障顯示,維修、保養(yǎng)無需專業(yè)人員
高效率之蒸發(fā)器及冷凝器,可節(jié)省能源30%以上
控制溫度:5-35℃,控制精度:±2℃
High/low pressure protection for the compressor and overheating protecttion inside the machine
Low water level alarm and low water temperature alarm and low water temperature alarm
Imported compressor from Europe,US and Japan(Hanbell Refcomp)
Refrigerating system welded with oxygen free method ,to reduce oxides and ensure the smooth surface
Throttle components fromAlco(US)and Danfoss(Denmark)
Electromagnetic valve filter adopt from Danfoss(Denmark)
Stainless plate,coil,shell and tube or fin type efficient hent exchanger
RS485 communication function,to realize automatic management(optional)
Electrical devices supplied from OMRON,FUJI.TE.LG.MOELLER,and SCHNEIDER
Control mode: imported micro-computer or PLC(optional)
Perfect safety protection, failure display, and not requiring professional personnel for maintenance
Highly efficient evaporator and condenser , to save over 30% energy
Temperature controlled5-35℃:precision controlled ±2℃