Types of Wing-Ring Vacuum Pumps Water-ring vacuum pumps are divided into two types according to their structure, namely planar and cone-type. The technical content of the latter is higher. See Figure Plane-type water ring vacuum pump Cone-type water ring vacuum pump Figure Plane water ring Vacuum pump cone Body-type water ring vacuum pump The flat air inlet and exhaust port are designed on the flat side cover of the pump, and the air is taken in from the light side of the blade. The cone-shaped air intake and exhaust ports are designed on the conical seat of the pump and the air is drawn in and out of the impeller. The cone-type vacuum pump has a large inlet cross-sectional area, thus allowing more liquid to be entrained in the inlet gas, making it more adaptable to production. The nozzle can be installed at the inlet of the vacuum pump to condense the condensable gas in the inlet gas beforehand, which reduces the volumetric gas flow into the vacuum pump. Therefore, a smaller pump can be used to reduce the investment, or the pump speed can be reduced to save energy consumption. Flat-type painting and cone-type vacuum pump technology comparison diagram for these two types of vacuum pump rotor structure. The cross-sectional area of ​​the helium port of the cone-type vacuum pump is much larger than that of the flat pump. The wear of the vacuum pump will occur during operation, resulting in a decrease in the amount of pumping. Practice has proved that the rate of annual decrease in pumping volume of flat pumps is due to the structural advantages of left and right cone pumps, and the rate of annual reduction of pumping volume is around. In particular, the planar pump has a small flow path resistance due to the planar contact between the pump head and the rotor. The processing capacity of a single pump is larger than that of a flat maintenance impeller surface of the same specification and consumes more power. The airtightness between the suction drop and the increase in clearance due to wear leads to the recovery of the pumping performance, while the cone pump has to recover its pumping performance by only adding several spacers between the cone and the pump head. Move the cone inside to reduce the wear gap, and the maintenance cost is very low. After the old pump is repaired, the pumping volume can reach the new pumping volume of the cone type pump, and the longer life of the cone type vacuum pump exhaust port is in the pump. The lower part of the body, while the upper part is a vacuum suction port. Therefore, when the cone pump is working, the pressure generated by the gas is from bottom to top, so as to offset the weight of part of the impeller, so that the bearing force is reduced and the bearing life is prolonged. The exhaust port of the flat pump is located in the upper part of the pump body, and the pressure generated by the gas is superimposed on the bearing, thereby shortening the bearing life as seen in the cone vacuum pump. Current impact small cone type vacuum pump impeller is eccentric to the lower part of the pump, the exhaust port is also in the lower part of the pump, so when the static liquid level is low, so the starting current is very small, the impact on the equipment is also small. Plane vacuum pump impeller is located in the upper part of the pump, exhaust port. Its tip is fully closed, so the impeller structure is particularly strong and has a long life. At the same time its structure is simple and easy to maintain. Plane vacuum pumps are all on the plane end face because the inlet leads to the air inlet. Therefore, the end of each lesser clock is only used to open. The entire impeller is poor in sturdiness, and a welded ring is needed to reinforce the outer ribs, so it is easy to occur. Shedding phenomenon.
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