You must be familiar with the vacuum pump, but you may not know its working principle. Let's introduce it to you and have a look.
1. During the operation of the vacuum pump, due to the centrifugal force, water forms a closed ring of approximately equal thickness, which is determined by the shape of the pump cavity. The inner surface of the upper part is just tangent to the impeller hub, and the inner surface of the lower part is just in contact with the top of the blade (in fact, the blade has a certain insertion depth in the water ring).
2. A crescent shaped space is formed between the impeller hub and the water ring, and this space is divided into several small cavities with equal number of blades by the impeller. If the upper 0 ° of the impeller is taken as the starting point, the volume of the small cavity will increase from small to large when the impeller is 180 ° before rotation, and it is connected with the suction port on the end face. At this time, the gas will be sucked in. When the suction is finished, the small cavity will be isolated from the suction port. When the impeller continues to rotate, the small cavity will decrease from large to small, so that the gas will be compressed. When the small cavity is connected with the exhaust port, the gas will be discharged from the stainless steel vacuum pump. Outside the pump.
Vacuum pump has its unique advantages and advantages. It has been widely used in food vacuum packaging, medicine, printing machinery paper transportation, glass industry transportation, vacuum fixture, drying and other units.
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