Energy-saving supermarket supermarket refrigerated showcase to continue healthy development
energy-saving technology Due to the short development history of the supermarket refrigerated showcase industry in my country, the power consumption of most supermarkets supermarket refrigerated showcase is higher than that of similar products in developed countries. With the rapid development of the supermarket refrigerated showcase industry in China and the increase in the popularity of supermarket refrigerated showcase, the energy consumption problem of supermarket refrigerated showcase has become more and more prominent in the national economy, which is related to major issues such as resource conservation and environmental protection. Therefore, saving energy, protecting the environment, developing and producing all-replacement energy-saving refrigerators are the major trends in the sustained and healthy development of the supermarket refrigerated showcase industry in my country.
The main energy-saving measures of the current supermarket refrigerated showcase include: improve the supermarket refrigerated showcase structure design, including the use of new materials and new processes for heat exchangers to increase the heat transfer coefficient: increase the thickness of the box insulation layer and improve the insulation Coefficient: adopt micro-control valve, switch and adjust the refrigeration system according to different refrigeration conditions, change capillary throttling to improve the heat coefficient of heat exchanger: adopt high-performance rolling rotor or scroll compressor: adopt intelligent microcomputer control , Under different working conditions, change the refrigeration cycle, improve the coefficient of refrigeration, and reduce power consumption. 1. New high-efficiency compressorUsing high-efficiency compressors can effectively save energy. Supermarket supermarket refrigerated showcase Compressors have developed from the original reciprocating piston type to the current rolling rotor type and scroll type. This development process has made the refrigeration coefficient of the compressor improved and the energy-saving effect is significant.
From the perspective of development trend, the
supermarket refrigerated showcase piston compressor will gradually be replaced by rolling rotor type and scroll type. Japan's Hitachi Company redesigned the rolling rotor compressor to improve the efficiency of the compressor motor: the structure and dimensions of the cylinder, rolling piston, and air inlet and outlet have been precisely improved and designed to reduce noise and increase air delivery coefficient. And the purpose of the coefficient of refrigeration. Improved design of evaporator. In order to reduce the flow resistance in the evaporator, a large inner diameter evaporator can be used to reduce the flow resistance: the heat transfer area of the evaporator is increased to ensure the required cooling capacity in the box, which can appropriately increase the evaporation temperature, and The increase of the evaporation temperature is extremely important to improve the energy efficiency of the supermarket refrigerated showcase; through the reasonable matching of the heat transfer area of the freezer compartment and the refrigerator compartment, the freezer compartment and the refrigerator compartment can be kept at an appropriate temperature, and the freezer compartment will not be too cold. Heat load and increase energy consumption. Improved design of the return pipe heat exchanger. In the supermarket refrigerated showcase refrigeration system, the return pipe heat exchanger can improve the efficiency of the supermarket refrigerated showcase. Measures can be taken from three aspects to improve the heat exchange efficiency inside the capillary tube and the return pipe: countercurrent heat exchange is used to improve the heat exchange efficiency: the capillary tube and return pipe are parallel welded to improve the heat exchange efficiency between the two The heat exchange efficiency of this method is higher than the heat exchange efficiency of the capillary tube penetrating into the return air pipe: the heat exchange between the capillary tube and the return air pipe is increased by increasing the heat exchange length between the two.Ranking of similar articles
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