A, 2SK type water ring vacuum pump Overview: 2SK series water ring vacuum pump the equivalent of 2 SK Series ring vacuum pumps used in tandem. SK series water ring vacuum pump because only reach ultimate vacuum -700mmHg, in order to achieve a high vacuum and high vacuum pumping speed large, and in the 1980s the country has developed a series of vacuum pumps 2SK. With the advent of our 2BV and 2BE series production of a new generation of energy-saving products, 2SK type water ring vacuum pump will gradually be replaced. 2SK-P1 series of two water ring vacuum pump - Air injection pump unit mainly work in absolute pressure 10 ~ 50mmHg lower, but it is less efficient at high vacuum region, for the long run can be used Roots water ring vacuum unit, so get optimum efficiency high vacuum pumping region. 2SK type water ring vacuum pump and 2SK-P1 series of two water ring vacuum pump - Air injection pump unit is used to suction air and other non-corrosive, insoluble in water, no gas containing solid particles in order to obtain more in a closed vessel high vacuum. 2SK type water ring vacuum pump is widely used in vacuum evaporation food, textile, chemical, pharmaceutical and metallurgical industry and electronics sector, vacuum concentration, vacuum resurgence, vacuum impregnation, vacuum drying and vacuum smelting. 2SK series used in the suction pressure is below -0.08MPa working conditions, 2SK-P1 series used in the suction pressure is below -0.096MPa working conditions. Two, 2SK type water ring vacuum pump Features: 1, Comparative SK series single-stage water ring vacuum pump, high vacuum, high vacuum pumping speed and other characteristics region. 2, under the same pumping speed, shaft power significantly higher than 2BV, 2BE series liquid ring vacuum pump. 3, due to the structure of the double impeller structure, manufacture, maintenance more complex, more wearing parts. Note: 1, 2SK type water ring vacuum pump performance curves and performance indicators listed in the table refers to the performance criteria under the following provisions: ① atmospheric pressure 0.1013MPa (760mmHg) ② inlet temperature of 15 ℃ ③ intake air temperature 20 ℃ ④ 2 air relative humidity of 70%, water supply of the suction pressure value -0.05MPa (-400mmHg) when the vacuum when the limit value can be greater than this. 3, performance tolerance of ± 10% 2SK type water ring vacuum pump works as one, the impeller (5) eccentrically mounted on the pump (3) When the impeller rotates, centrifugal force of water that is thrown to the surrounding out between 2SK type water ring vacuum pump body wall and impeller rotating water ring (6) is formed. The upper surface of the water ring in contact with the wheel hub, when the impeller rotates clockwise, the first half turn of the process, the inner ring surface water gradually from the hub cavity formed between two adjacent blade increases , was pumping gas through the pump inlet pipe (4), the crescent-shaped suction hole (7) continue to be sucked cavity; half turn in the process, the inner surface of the water ring and the hub gradually close, between two adjacent blades cavity gradually reduced, the gas is compressed, thus increasing pressure, when the pressure is increased to greater than outside pressure, the gas is discharged, in order to continuously pumped gas sealed container to create a vacuum. ① exhaust volume of 1.5m3 / min or more 2SK water ring vacuum pump structure shown in figure II, the length of both the impellers 17 and 16 are keyed to the shaft 2, two intermediate impeller 20 is positioned with the sleeve and nut with a garden, which constitutes the entire rotor portion, and eccentrically mounted in the pump body, the support on ball bearings, devolves part 18 and the motor shaft coupling associated with, so that together with the same rotational speed and motor to two separate, composed of long impeller 17, long pump 9 and inhaled some of the high vacuum level, short pump 5, short impeller 16 and the discharge part of the low vacuum stage, high-grade vacuum vent and low vacuum level of the suction port is coupled with the communication pipe composition (2SK-1.5 is no such communication tube) a two-stage series, separated (A) 7 and the intermediate wall with an intermediate wall between the two stages (B) 6, there is an intermediate wall vent (A), the intermediate wall (B An intake port) on.