Zibo Boshan Chunjiang Vacuum Equipment Co

The corrosion-resistant vacuum units produced by our Zibo Boshan Chunjiang Vacuum Equipment Co., Ltd. mainly include the following three types
Roots pump and water ring pump
The function of the water ring pump in the corrosion-resistant vacuum unit is to cause the Roots pump The required preliminary vacuum requires the maximum allowable exhaust pressure of the water ring pump. That is to say, on the one hand, we must try to increase the ultimate vacuum of the water ring pump, and on the other hand, we must also try to increase the maximum allowable exhaust pressure of the Roots pump. air pressure.
Generally speaking, the ultimate vacuum degree of a single-stage water ring pump is not high. In fact, a single-stage water ring pump is not used as the front pump of a Roots pump, but a two-stage water ring pump that can improve the ultimate vacuum degree is used as the front pump. The use of two-stage water ring pumps can also improve the ultimate vacuum degree of the unit.
The ultimate vacuum degree of a Roots pump is low, especially when it is combined with a water ring pump, the range of use is limited, and the ultimate vacuum degree of the entire corrosion-resistant vacuum unit may be even lower, but if By connecting two Roots pumps in series and then combining them with a water ring pump, the ultimate vacuum degree of the unit can be greatly improved. Therefore, in this type, it is usually seen that two Roots pumps are connected in series and then a two-stage water ring pump is used. The backing pump forms a corrosion-resistant vacuum unit.
Roots pump water ring pump atmospheric pump unit
Even if a two-stage water ring pump is used, the ultimate vacuum degree is only improved within a certain range. This is because it is affected by the saturated vapor pressure of water. limit. The theoretical ultimate pressure of a water ring pump is the saturated vapor pressure of water. If the influence of factors such as gas backflow is taken into account, the ultimate pressure of the water ring pump is actually significantly higher than the saturated steam pressure at this water temperature. In order to improve the ultimate vacuum degree of the backing pump, a water ring pump can also be used in combination with an atmospheric pump.
In this way, the ultimate vacuum after the first-stage atmospheric pump is connected in series can reach ~. If the water ring pump is combined with the second-stage atmospheric pump, the ultimate vacuum can reach ~.
, Roots pump, water ring pump, parallel mechanical vacuum pump
This unit is mainly used in vacuum systems that need to process a large amount of water vapor and require a high ultimate vacuum degree. For example, in vacuum drying, a large amount of water vapor is required to be processed. In a water vapor vacuum system, it is more appropriate to use a water ring pump, but due to its low ultimate vacuum, the ultimate vacuum of the entire corrosion-resistant vacuum unit is low. Although in vacuum systems that require a higher degree of vacuum, a mechanical vacuum pump with a higher ultimate vacuum is required as a backing pump. However, due to the large power consumption, low efficiency and high noise of the water ring pump, it is uneconomical to use the water ring pump as a backing pump for a Roots pump in a vacuum drying system that requires a long time.
Believe that the corrosion-resistant vacuum units sold by our company will give you a different experience.