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Schlee (China) Refrigerating Equipment Manufacturing Co.,Ltd

Add:Jupu Road, Pukou Development Zone, Nanjing City, Jiangsu Province, China

Contact us:Annie





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Air Cooled Screw Chiller Save Electricity
- Nov 03, 2017 -

Screw chiller is a large industrial refrigeration equipment. Widely used in central air conditioning and large refrigeration industry. Play refrigeration, cooling, cooling important use. Air Cooled Screw Chiller Water cycle works, save water resources. Direct cooling equipment with cold water. Industrial equipment can not increase the temperature.  

1, the selection of screw chiller should be in accordance with the cooling load and preparation for which aspects to think about. For low-load operating conditions longer cooling system, suitable for multi-head piston compressor or screw compressor group for ease of conditioning and energy saving, Air Cooled Screw Chiller which is what we often say double-head screw chillers, with the Load changes, screw chillers automatically determine the number of boot, the compressor is in the best working condition, thus effectively saving power.

2, the choice of screw chiller, giving priority to higher coefficient of performance of the unit. According to the statistics of the past, the normal screw chillers run at 100% load for about one quarter of the running time. Air Cooled Screw Chiller The operating hours of 100%, 75%, 50% and 25% load in sub-operating hours are roughly 2.3%, 41.5%, 46.1% and 10.1% respectively. Therefore, Air Cooled Screw Chiller the choice of chiller should give priority to the efficiency curve of the screw chiller models relatively flat. At the same time, the selection of the design should take into account the chiller load adjustment range, multi-head screw chillers part load performance, Air Cooled Screw Chiller according to the actual situation of the factory selection of screw chillers.

3, the selection of screw chiller, you should pay attention to the conditions of nominal conditions. The actual cooling capacity of the chiller is related to the following two points:

a, cold water temperature and flow rate;

b, cooling water inlet temperature, flow and fouling coefficient.

4, the selection of screw chiller, Air Cooled Screw Chiller should pay attention to the type of screw chiller normal work areas, mainly the motor current limit is the current value of shaft power under surface conditions.

5, in the design of screw chiller should pay attention to: In the nominal conditions of flow, the outlet temperature of cold water should not exceed 15 ℃, air-dry unit outdoor dry-bulb temperature of more than 43 ℃. If you have to go beyond the above categories, Air Cooled Screw Chiller when comprehending the scope of use of the compressor can allow, with the power from the motor enough.