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display cooler The structural influence of refrigerated food (7)
author: supermarket refrigerated showcase category: walk-in display coolers Views: 790Time: 2016-08-22
display cooler The structural influence of refrigerated food (7)
(2) Make full use of the effective volume. Due to the difference in product quality, batch, quantity, grade, etc., even if the supply of goods is sufficient, some of the volume will be underutilized. Therefore, in use, measures such as diligent consolidation and clever arrangements should be adopted to reduce sporadic cargo stocks. The gap between the cargo piles should be appropriately expanded to increase the storage capacity and the effective volume utilization rate of the display cooler room.
5. Other measures
(1) Periodically drain oil, air, defrost and descale the refrigeration system to maintain the good heat transfer effect of the heat exchange equipment and make full use of the heat transfer area to reduce the energy of the display cooler refrigeration system Consumption. According to the information, if there is an oil film of 0.1 mm thick on the heat transfer surface of the evaporator, in order to maintain the established low temperature requirements, the evaporation temperature will be reduced by 2.5°C and the power consumption will increase by 11%. When the water pipe wall of the condenser is scaled by 1.5 mm, the condensing temperature will increase by 2.8℃ than the original, and the power consumption will increase by 9.7%; when the refrigeration system is mixed with non-condensable gas, the partial pressure reaches 1.96× 10sPa, the power consumption To increase by 18%.
(2) For the cooling water system, attention should be paid to improving the water quality, reducing the fouling on the heat exchanger, maintaining the good heat transfer effect of the heat exchanger, and reducing the condensing pressure (condensing temperature) in order to achieve the purpose of energy saving. According to calculations, the condensing temperature is between 25°C and 40°C, and every 1°C increase will increase power consumption by about 3.2%.
(3) Save water. Water conservation can save water and electricity. The water used in the refrigeration system is mainly the following three aspects: water for condenser, water for cooling of compressor cylinder, and water for flushing of air cooler. In order to save water, most of them use recycled water.
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