Introduction
    Yu Jiang water-cool cabinet low temperature cold water machine uses imported well-known fully-closed low turbine air compressor, the latest condenser, evaporator of high efficiency, and Cooling Units and control components that are the most famous in the globe, in technical cooperation with the Chinese Research Institute, required temperature can reach to -35℃; have such advantages as superior features, stable performance, simple manipulation, compact structure, good-looking appearance, regardless of use of Ethylene glycol or brine, required temperature 0℃～-35℃, our company can all make manufacture design at the requests from customers, low temperature screw-shaft type cold water machines that our company produce are calculated and tested with accuracy to make rational superior design; the machine is tested at the running test centre, out-factoring once meeting technical requirements, therefore the machine has high efficiency, good quality, less incidents, providing customers with the best products.

Working principle
    Water-cool cabinet low temperature cold water machine uses water for chilling, high temperature high pressure gaseous refrigerant escaping from the air compressor going through the tubular condenser and chilling tower to become low temperature high pressure liquid refrigerant, then goes through expansion valve to provide low temperature low pressure liquid refrigerant for tubular evaporator to achieve chilling efficiencies, while the refrigerant reduces the required temperature down to below 00C by Ethylene glycol or brine, to provide used equipment.
Scope of use: In industrial production sector to reduce the temperature to the desisted level or in chilling sector that requires medium- low temperature

Fully-closed turbine low temperature air compressor
    Air compressor: uses fully-closed turbine air compressor of famous brand-names such as DAIKIN、COPELAND、SANYO、MANEUROP, Performer, has higher efficiency than piston air compressor from 20%-30%, stable performance, high efficiency, low incident rate, convenient maintenance. Based on customers’ requirements, one or multiple air compressors can be used, they can changed in accordance with sub-load, automatically inter-change in operation, balance working hours, save power, extend life span.
(Fully-closed turbine air compressor uses refrigerants such as R22、404c、R407c、R134a)

Tubular condenser and evaporator.
    Condenser: using various heat exchange copper tubes imported from German, Japan and produced domestically. The copper tube’s outer surface is processed in low-level ladder shape, thereby increasing the heat exchange area, enhancing the heat transfer. The copper tube’s inner surface is glossy, thereby reducing water pressure and making it easy for cleaning and maintenance.
    With ethylene glycol as introducing agent, the evaporator uses internal thread high effective heat exchange copper tube, thereby increasing the heat exchange area, improving heat transfer efficiency, and saving energy.
    With brine as introducing agent, the evaporator is made by 316L stainless steel or copper alloy, which is resistant to alkali and corrosion, thereby increasing efficiency and longevity of the machine and helping maintain machine stable performance.

Cooling Units
    Cooling Units: Using the well-known global brands such as DANFOSS, ALCO, SPORLAN with first-rate quality and superior functionality which helps promote machine efficiency.

Electric control-system
    Electric control-system uses smart PLC、PC touch screen control system in Chinese language with quick response and precise control. The system has functions of water temperature automatic control and record of incident causes. The operation is simple and easy. Its automatic protection function can prevent the machine from damage during operation, extend the life span of the machine and perform remote control and central control.

Protection devices
    Overload protection devices of air compressor, over heat protection devices of coiler, overload protection devices ventilator engine, protection devices of low-high pressure switch, phase protection devices (reverse-phase, phase shortage), protection devices of anti-freezing, safety valve  or safety bolt, are best protecter of the machine