Third, the structure of the pump from the pump body, before and after the end cover, impeller, shaft and other components. The intake pipe and the exhaust pipe are connected with the pump chamber through suction holes and exhaust holes which are arranged on the disk cover on the end cover. The impeller is keyed on the shaft by keys and is eccentrically installed in the pump body. The total gap at both ends of the pump is adjusted by the pad between the pump body and the disk. The clearance between the impeller and the front and rear disks is adjusted by pushing the impeller (SK-1.5 / 3/6) Evenly. The SK-12 pump, shaft and impeller for the interference fit, this gap determined by the front positioning. SK-120 sleeveless, the rest of the structure and SK-6/12/30/42/60/85 the same. The clearance between the impeller end faces and the front and rear discs determines the size of the loss of gas and its ultimate pressure in the flow of gas in the pump chamber from the intake port to the exhaust port. Filler installed in the two end caps, sealing water through the hole in the end cap into the filler, cooling filler and enhance the sealing effect. The additional water needed to form the water ring by the impeller is supplied by the water supply pipe (tap water), and the water supply pipe can also be connected with the water separator to circulate the water supply. If the seal type mechanical seal, the mechanical seal installed in the filler cavity, without packing, packing gland replaced mechanical seal gland, the remaining structure is the same. Bearing by the garden nut fixed on the shaft. In the end cap is installed on the disc, the disc is equipped with suction, exhaust and rubber ball valve. The role of the rubber ball valve is that when the gas pressure between the impeller blades reaches the exhaust pressure, the gas is discharged before the exhaust port to feed the power consumed due to the excessive gas pressure so as to reduce the power consumption. Fourth, equipment description Series water ring vacuum pump and compressor system by the vacuum pump (compressor), coupling, motor, water separator and piping and other components. The working process of the vacuum pump and the compressor and the steam main is as follows: the gas enters the vacuum pump or the compressor from the pipeline through the valve, and then discharged into the separator through the draft tube and into the separator through the separator. When used as a compressor, the mixture of soda and water exiting the compressor is separated in the water separator and the gas is passed through the valve to the system where the compressed gas is to be compressed. The water remains in the separator and the water in the separator passes through Automatic overflow switch to adjust, when the water level is higher than the required water level, the overflow switch is turned on, water overflow from the overflow pipe; when the water level is lower than the required water level, the overflow switch is turned off, the water separator in the water level rise to reach the required level. The working fluid in the vacuum pump or compressor is supplied by the water separator (tap water is also available). The amount of water supply is adjusted by the valve on the water supply pipe. The difference between gas suction and pressure delivery systems is that the internal structure of the water separator is different. Suction gas, the suction port pressure is lower than atmospheric pressure, and the exhaust port pressure is equal to atmospheric pressure, water separator only overflow pipe; pressure delivery of gas, the suction port is atmospheric pressure (also for the vacuum state), the exhaust port The pressure is higher than one atmosphere. To ensure the delivery of gas pressure, the water separator's water level is controlled by the overflow switch.
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