• Categories:Company News
• Time of issue:2021-07-27 10:10
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(Summary description)We all know that the "humidity" of the air refers to the dryness of the air, that is to say, the air already contains water.        The air compressor does not produce water, but acts as a “porter” of water in the process of compressing air. Air in the natural state is compressed or cooled, and it will tend to be saturated until it is supersaturated. Water in the air will precipitate and change from a gaseous state to a liquid state, and water is thus produced. Why is there water in the exhaust of the air compressor?        For compressed air systems, compression is the purpose, and cooling starts to run through after compression.        When the air compressor is working, because the gas is compressed to release a lot of heat, the internal temperature of the compressor head is very high (about 100°C). The moisture in the natural air that is inhaled will form water vapor during the compression process of the air compressor and be discharged with the compressed air.         Generally, the air compressor unit is equipped with an air cooler to force the compressed air to be discharged from the air compressor to forcibly reduce the temperature. The purpose is to use the cooling and condensation effect to remove a part of the water in the compressed air.        This is still the case when the air compressor itself has a sound cooling and drainage function, otherwise, the compressed air and water will flow to the back-end pipeline together.        Even if the drainage function of the air compressor body is normal and there is no liquid water at the outlet of the air compressor, the compressed air discharged is still saturated. With only a little cooling, liquid water will still condense in the compressed air.        The "Hui Nantian" in the south intuitively illustrates the formation of water. When warm and humid air encounters a lower temperature surface, such as floors, walls, etc., water droplets will condense on the surface.        In the compressed air system, there are various pipes, air storage tanks, filters, etc. at the outlet of the air compressor. The temperature of these objects is lower than that of the discharged compressed air (generally, the exhaust temperature of the air compressor is the ambient temperature. Above 10°C), this will inevitably condense a lot of water.        Especially in the gas storage tank, when the compressed air passes through the gas storage tank, the high-speed airflow hits the wall of the gas storage tank to generate confluence, and the temperature in the gas storage tank drops rapidly, so that a large amount of water vapor is liquefied to form condensed water . If it catches up with humid weather (inhaled air itself with high humidity) or winter (the ambient temperature is low, and the temperature difference with the air compressor exhaust is greater), more condensate will be formed.        Therefore, the drainage of air storage tanks is usually emphasized by almost all air compressor manufacturers. The "bottom in and top out" method of the inlet and outlet pipes of the gas storage tank also considers the possibility of water storage at the bottom of the gas storage tank to prevent liquid water from flowing to the rear with the airflow. More often).