During decarburization procedures the vacuum system needs to operate very long time in a rough pressure range. An efficient gas-cooling is essential as the extracted sizzling gases would or else overheat the filter and vacuum system.
With the development of technology and the improvement of item quality in aerospace, energy, iron and steel processing, pharmaceutical and chemical industries, these industries have to obtain a certain vacuum environment. Simultaneously, the vacuum system utilized by these industries is continuously increasing, and the vacuum level is continuously increasing. Moreover, the state’s environmental security, energy saving and three wastes discharge to the above-described industries, etc. The requirements are more stringent. At present, the existing dry vacuum pumps out there, such as screw vacuum pumps and claw vacuum pumps, are unable to meet the requirements of oil-free large pumping swiftness clean vacuum environment proposed by these industries because of the restrictions of pumping quickness characteristics and structural system.
Because of the shortcomings of the existing technology, the specialized problem to be solved by the utility model is to supply an Gas-Cooling Roots Pump all-gas-cooled vacuum system to satisfy the utilization in a clean vacuum environment with huge oil-free pumping speed.