In the system of air compressor, it consists of electrical control system, flow, pressure control system, oil circuit system, pneumatic system, cooling system, safety protection and other systems. The cooling system works with lubricating oil and compressed air. The main purpose is to ensure that the operating temperature of the compressor system is normal and the temperature of the compressed air outlet is normal. In the compressor cooling system, it is divided into two types, air-cooled and water-cooled, which can be easily adapted to the user's location and selected according to the actual site or environmental conditions. For the air-cooled air compressor, a high-efficiency plate-fin cooler is used to blow cold air into an axial or centrifugal fan to heat the hot lubricating oil and hot compressed air. Exchange, through heat exchange, to achieve the purpose of cooling; and for water-cooled air compressor, that is, using water flow, through the shell-and-tube heat exchanger, heat exchange with lubricating oil and compressed air. Advantages: Easy to use, no additional auxiliary equipment and resources are needed, the compressor is energized, and the pipeline can be used after being connected. Disadvantages: 1. Space problems should be considered during installation. In order to avoid hot air circulation, it is necessary to vacate a large space for heat dissipation (compressor installation space is large), if necessary, additional air hoods need to be installed, Most compressors below 40 cubic meters are more suitable. 2. If the environment is not clean, the heat dissipation surface is easily covered by dust, which affects the cooling effect. Therefore, for each equivalent period, compressed air is used to blow off the dust on the cooling surface of the cooler. Advantages: Since the heat capacity of water is larger than that of air, the heat exchange effect is better than air cooling, and the temperature drop is fast and the efficiency is high. The installation space is small. Disadvantages: 1. Additional water circulation system is required. At present, compressors with a large displacement of more than 50 cubic meters use this cooling method. 2, water-cooled cooler, must use cleaner industrial cooling water, the same cooling water inlet temperature should not exceed 32 ° C to avoid cooler fouling. 1. Water-cooled air compressor, due to its good heat exchange effect, the huge heat generated by the air compressor will be taken away by the water circulation system, so it is not necessary to install it. Considering the heat dissipation space, or installing the air hood, and because the cooling fan used in the cooling system is also small, the noise of the air compressor is relatively low relative to the air-cooled air compressorIn terms of it, it is also much lower. 2, the equipment is air-cooled air compressor, if the displacement of air compressor is large, the heat generated by heat exchange is also large, if placed empty Press The indoor ventilation conditions are not good enough to effectively transfer the heat discharged from the air compressor to the outdoor. The hot air is easily accumulated in the equipment room, causing the ambient temperature in the equipment room to rise. High, too high ambient temperature is harmful to air compressor, which may cause the efficiency of the cooler of the air compressor to drop drastically. Causing air compressor over temperature shutdown, directly affecting the normal use of air compressor. 3, the general air compressor is running at 88— 96 °C, but as the unit operating temperature increases, the gas production of air compressor will decrease. The gas production decreased by 0.05% for every 1 °C increase in temperature.
Label [DSNEairscrew air compressorSelection] [Air-cooled, water-cooled air compressor advantages and disadvantages]
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