Blister machine vacuum pump cold straight discharge

Domestic air-cooled direct-exhaust atmospheric Roots pumps have made rapid progress and have matured in technology. Since this pump is equipped with a gas cooler under the exhaust port, a part of the cooled gas is returned to the pump cavity through a pipe to cool the rotor, so that the heat of compression is balanced, so this pump can directly exhaust the atmosphere. In order to meet the requirements of different ultimate vacuum degrees, this kind of pump can be used in series. Generally, an air-cooled direct-exhaust atmospheric Roots pump is added in front, and the ultimate vacuum achieved is an order of magnitude higher than that of the backing pump. This kind of pump is actually a dry pump because there is no working medium in the pump cavity. This air-cooled direct-exhaust atmospheric Roots pump and unit has been tested for long-term operation in petroleum, chemical, plastic, pesticide, steam turbine rotor dynamic balance, aerospace space simulation and other devices, so it should be vigorously promoted and applied in China.