Water-Cooled Normal Temperature Type Freezing Dryer

The compressor of the freezing dryer adopt the most advanced scroll compressor, with high efficiency, energy-saving and envirinmental protection. It has features of less noise, smaller size and lighter weight. Scroll compressor is running smoothly, in small gas pulsation and torque changes, with long service life of compressor. The compressing process is long, and since the dropout voltage between adjacent compression chambers is small, the leakage is less with higher efficiency.

The condenser adopt shell and tube water cooled condenser with high efficiency external screwed pipe jrom Japan, and made in CNC processing center, to greatly improve the heat exchange efficiency, and have features of small size, long service life and convenient cleaning.

Pressure-regulating device: during extra-high ambient temperature in summer, the water-cooling aided air cooling condensing method can be started and put into service via this device. While during extra-low temperature ambient temperature in winter, the condensing pressure can be automatically adjusted via this device. Even in most severe environment, this device enables to always keep the condensing pressure within optimum pressure limit to make the freezing dryer under best running state.

Economizer adopts high efficiency external screwed pipe and made by fine processing, to make the refrigerant without fully condensation from condenser and the residual low temperature steam from evaporator to heat exchange, so that the refrigerant may be cool fully and the liquid refrigerant in the steam may vaporize, and the return-air temperature is increased. Therefore, it can not only improve the refrigeration coefficient (saving energy over 8%) but also keep the compressor from liquid harmer and ensure the service life of compressor.


Electric control system adopts the first class brand LG product made in South Lorea. Automatically detect the failures and display on the screen to ensure the stable operation and long service life of machine. Full automatic micro-computer control has wide control range of temperature, which can unload automatically upon the actual loading variation to save energy. Main protection function: protection against overload, overvoltage, antiphase, overheat of compressor, overvoltage fuse tube, abnormal refrigerant and eletric leakage, etc.