The comparison of vacuum stability
As the system running time increases, the organic solvent content in the circulating working fluid gradually increases, resulting in a decrease in the ultimate vacuum degree and pumping rate of the vacuum unit. The claw vacuum pump does not have this problem due to the absence of water and oil.
The comparison of corrosion resistance of equipment
When there is an acid gas in the pumping medium, due to the presence of water in the water ring pump, the acid gas dissolves in the water to form an acid, which has a corrosive effect on the pump body. The claw pump is waterless, so there will be no problem.
The comparison of energy saving and emission reduction effects
The water ring pump relies on the impeller to do work on the water centrifugation, forming liquid to gas compression, so as to achieve the pumping effect, so when the water ring vacuum pump works, it is mainly the energy consumption generated by the impeller centrifugation on the water, and the energy consumption is maintained at a high level during the entire working process. The claw pump adopts frequency conversion control, and the energy consumption is relatively constant at low vacuum; the main energy consumption of the claw pump is the energy consumption consumed by the rotation of the pump itself, which is lower than that of the water ring pump.
(Water ring vacuum pump system)
The comparison of sewage discharge
There is water in the water ring pump, sewage discharge cannot be avoided, there is pollution to the environment, and it is difficult to treat and costly. The claw pump has no sewage discharge.
The comparison of exhaust gas recovery
The exhaust gas of the water ring pump contains water produced during operation and cannot recover pure exhaust gas. The claw pump enables pure exhaust gas recovery. Especially when used in petroleum, pharmaceutical and other industries, it will not produce sewage and waste gas pollution.
Hokaido claw vacuum pump has the characteristics of efficient pumping efficiency, super steam and particulate matter processing capacity, perfect matching process vacuum control, and 100% cavity cleanability.
Widely used in: petrochemical industry (vacuum evaporation, vacuum drying), pharmaceutical industry (vacuum evaporation / adsorption / desorption), food industry (vacuum dehydration / drying / preservation), scientific research institutes (negative pressure extraction, environmental simulation), electronic photovoltaics, aerospace, metallurgical industry, etc.
You can contact Hokaido Vacuum Pump Manufacturer for application stories from your industry.