Using secondary overcooling technology, refrigeration is rapid and the limit temperature is low;
Imported brand name semi-closed piston compressors, semi-closed piston dual-stage compressors, semi-closed screw compressors, mainly self-branded BOCK, Bitzer, Copeland, Hanbell, fusheng; the evaporator adopts high-strength plate heat exchanger, which is small in size and high in efficiency;
Adopt a full set of imported cold controls(DANFOSS pressure controller, balance valve, expansion valve, electromagnetic valve, dry filter, Emmeric oil separator, ALCO eyepiece, one-way valve, etc.);
Intermediate heat exchanger is used in cooling water loop of unit to improve the reliability and safety of the system.
Using DANFOSS electronic expansion valve, the control accuracy is high;
Using Siemens PLCS7-200 / 300 PLC, LNEYA touch key screen display, automatic control operation, and with temperature curve display, temperature record U disk, fault alarm record;
the large refrigeration unit adopts a semi-closed screw compressor with an economizer, and combines with an electronic expansion valve to ensure efficient energy conservation;
the whole machine is installed. the system has been tested in the factory. the user only needs to install the coolant line and the cooling water line to run.
Factory test: Each refrigeration unit has a load test at the factory for not less than 12 hours;
the company's production of medium single fluid cryocooler, refrigeration temperature range from -10 C ~ -45 C, fast refrigeration, safe and reliable, for liquid rapid refrigeration, Widely used in petrochemical, medical, pharmaceutical, biochemical, freeze-dried, pharmaceutical, military and other high-tech industries.