The energy it consumes accounts for a large proportion of the entire refrigeration system. For a particular cooling capacity, choosing a different compressor is directly related to the energy consumption of the operating refrigeration compressor is the heart of the refrigeration equipment, which consumes a large proportion of the energy in the entire refrigeration system. For a particular cooling capacity, choosing a different compressor is directly related to the energy consumption of the operation. Shandong cold storage installation

In the construction of large and medium-sized cold storage, liquid ammonia cooled screw refrigeration compressors have replaced the trend of piston compressors. Under typical operating conditions of condensing temperature of 35 ° C and evaporation temperature of -28 ° C (-33 ° C), when the cooling capacity is greater than 450 kW, the screw compressor should be selected, which is superior to the piston compressor in terms of initial investment and operating cost. reasonable.

However, when selecting the number of units, it is necessary to take into account the reasonable mix of unit energy at low peak load, medium load and peak load of cold storage, and avoid long-term operation of screw compressor energy regulation under 50%. For the large and medium-sized quick-freezing warehouse with evaporation temperature of about -45 °C, a combined two-stage compression refrigeration system consisting of a plurality of large-capacity screw compressors can be used, and the energy-saving effect is remarkable. Shandong cold storage price

The problem with the configuration of refrigeration compressors in many cold storages is that the compressors selected at the time of design are operated at full load for a short period of time, and the low-load operation takes a long time, that is, most of the compressors are running at less than the design load. Under the operating conditions, the refrigeration capacity of the compressor does not match the actual cooling load, resulting in an increase in the energy consumption of the cold storage.

Therefore, it is necessary to correctly estimate the change in the actual cooling capacity of the cold storage, and to grasp the variation law of the amount of heat released during the refrigeration process, the outside air temperature, the cooling water temperature, and the daily operating heat, and adjust the number of compressors to be adjusted or reduced by the unloading device. The number of working cylinders of the compressor. Small cold storage price

This article is organized by Shandong Dingsheng Refrigeration Equipment Co., Ltd.! If you have any enquiries, please pay attention to the WeChat public account "Dingsheng Refrigeration" or call 15725158383! ! !
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn

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