Water cooled screw chiller

Technical characteristics：

1, the use of good semi-enclosed 5:6 asymmetric twin screw compressor, motor, compression chamber integration, no shaft seal leakage phenomenon;

2, the compressor adopts star-triangle buck start to avoid the impact on the power grid;

3. Realize multi-stage automatic control of cooling capacity adjustment

4, the heat exchanger adopts imported efficient heat exchange copper tube, high heat exchange efficiency;

5, equipped with liquid injection system can effectively reduce the compressor oil temperature, greatly improving the efficiency of the unit under low temperature conditions。

6, imported PLC man-machine operation interface for LCD touch screen, graphic display, easy to operate, English and Chinese optional。RS485 national standard communication interface, can be used withDCS system connection, and can be connected to the entire factory automation network, easy to remote control and monitoring。

7, automatically detect the outlet temperature or return water temperature, by controlling the compressor capacity adjustment slide valve, automatically adjust the cooling capacity of the unit, the operation is more energy-saving and efficient。

8. Automatically record the first 20 fault alarm points to facilitate maintenance personnel to judge and maintain the unit in time。

9, low noise, low vibration, according to industrial standards, suitable for 24 hours a year。

10, the whole machine running parts are only screw bearings, the maintenance cost is very low, long life。

11、The use of a good level of stainless steel plate heat exchanger and a shell and tube economy with independent intellectual property rights can effectively improve the cooling capacity of 15%-20%。

12、All products are delivered with fluorine. After the equipment is installed in place, connect the water pipe and power line, and press the power button to realize the normal operation of the product。

13、Developed according to a lot of design experience, the energy efficiency ratio of the unit is higher，The cooling capacity of a single machine can reach up to 3410KW, which makes the screw type chiller widely used in large buildings。

机组技术Parameter list

注：1、 Parameters are determined according to the following working conditions:Chilled water intake出Water temperature12℃/7° C;Cooling water intake出The water temperature is 30℃/35℃

2、Temperature: chilled water outlet temperature range5℃～15℃, cooling water inlet temperature range19℃-33℃；

     3In nominal working condition, the water side fouling coefficient of evaporator and condenser is 0.018m3. At ° C /kw, the water side fouling coefficient of condenser is 0.044 m3.℃/kw；

     4The water side of the evaporator and condenser is designed to withstand pressure of 1.0MPa;