LSB series high efficiency (energy saving) type water cooling screw chiller

First, the working principle:

LSB series high efficiency (energy saving) type water cooling screw chillerIt is a new generation of screw chiller designed and developed by the company with strong product research and development ability and many years of experience in designing and producing piston chiller, integrating the advantages of similar products at home and abroad。The product tracks the development trend of The Times, combines the characteristics of high reliability, high efficiency, high automation and energy saving and environmental protection together, is a more convenient and reliable green central air conditioning host, which can be applied to air conditioning and ice storage conditions at the same time。The product is widely used in shopping malls, hotels, theaters, hospitals, large factories and high-rise buildings that need air conditioning or ice storage, and can also be used as a cold source host for the process of electric power, chemical industry, medicine and other industries。

This product complies with GB/T 18430.1-2001 "Steam compression Cycle cold water (heat pump) units for industrial and commercial use and similar cold water (heat pump) units" regulations。 At the same time, it meets the secondary energy efficiency grade standard stipulated in GB19577-2004 "Energy efficiency Limit Value and energy efficiency grade of Chiller"。

Cooling capacity:100KW-3860KW

Scope of application:1000m2-35000m2 of shopping malls, office buildings, hotels, theaters, restaurants, entertainment and other buildings。 

Second, technical features:

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。

Third, ZHONGYOU water cooled low temperature screw chiller technical parameters table

Note: 1, the parameters are determined according to the following conditions: chilled water inlet and outlet temperature -31℃/-35℃;Cooling water inlet and outlet temperature 30℃/35℃; 

2、Temperature: Chilled water outlet temperature range -37℃～-27℃, cooling water inlet temperature range19℃-33℃；

3, the refrigeration side of the unit must use 55%(V/V) glycol solution or 28% (m/m) calcium chloride solution as antifreeze;

4. The dirt coefficient of evaporator and condenser water side in nominal working condition is 0.018m3. ℃/kw, water side fouling coefficient of condenser为0.044 m3.℃/kw；

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

4, ZHONGYOU water cooled screw type low temperature chiller basic configuration table

Five, water cooling screw cold water机组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。