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活塞式往复真空泵是化工、医药、食品、轻工、冶炼、矿山、污水处理等工业部门在真空度要求不高的,如真空蒸馏、真空结晶、真空蒸发、真空浓缩、真空过滤、真空干燥和真空浸渍等工艺过程中广泛应用的设备。在机械行业中,往复真空泵是比较古老的品种。我国大量使用的泵型是五十年代的仿苏产品,三十多年来虽然经过一些改进,并且制订了标准(JB2962～2964—81),但没有摆脱原来结构的框框,仍然是卧式往复真空泵。和国外先进
Piston reciprocating vacuum pump is less demanding in the vacuum of chemical industry, medicine, food, light industry, metallurgy, mining, sewage treatment and other industrial departments, such as vacuum distillation, vacuum crystallization, vacuum evaporation, vacuum concentration, vacuum filtration, vacuum drying and Vacuum impregnation process widely used in the process of equipment. In the machinery industry, reciprocating vacuum pump is more ancient varieties. The pump used heavily in our country is imitation su products in the 1950s. Although some improvements have been made over the past 30 years and standards (JB2962 ~ 2964-81) have been formulated, they are still horizontally reciprocated without getting rid of the original structure Vacuum pump. And foreign advanced