Energy saving method of water chiller

Energy saving method of water chiller:

1. energy saving principle of water chiller: increase evaporation temperature and reduce condensation temperature as much as possible on the premise of meeting equipment safety and production requirements. Therefore, the transformation of cooling tower is increased to ensure the efficiency of cooling water.

2. prevent and reduce pipe scaling to improve the heat exchange efficiency of condenser and evaporator. If the water treatment is not done well, calcium bicarbonate and magnesium bicarbonate will be heated to produce calcium carbonate and magnesium carbonate, which will be deposited on the pipe. This will reduce the thermal conductivity, affect the heat exchange efficiency of the condenser and evaporator, and greatly increase the electricity charge for equipment operation. At this time, in addition to the water treatment technology, the pipeline can also be cleaned by the pipeline regular automatic cleaning equipment.

3. adjust the reasonable operating load of chiller equipment

Under the condition of ensuring the safe operation of the equipment, the power consumption per unit cooling capacity is smaller when the refrigeration host operates at 70%-80% load than when it operates at 100% load. The operation of water pump and cooling tower shall be comprehensively considered when starting the machine in this way.

4. the frequency converter of the water chiller is used to adjust the speed of the compressor of the centrifugal water chiller. After the low-pressure refrigerant passes through the centrifuge, the pressure rises. The higher the rotating speed of the centrifuge, the higher the pressure rise. In the actual operation, most of the equipment is running at non full load. The centrifuge with fixed rotating speed causes energy waste when the equipment operates at a small load. The variable frequency centrifugal chiller can automatically adjust the compressor speed according to the load change, which has a large energy-saving space.