Dry Screw Vacuum Pump in Aviation Industry
The experimental contents of the main simulator and its requirement for vacuum are very important in the aerospace industry. Generally speaking, it is difficult for ordinary people to touch, so it seems more mysterious. The application of dry screw vacuum pump in the aerospace industry is mainly to simulate the space environment. Aerospace activities are basically in progress. Natural vacuum is not only affected by vacuum environment, but also by various kinds of solar radiation, charged particles and so on. Therefore, it is necessary to simulate similar cosmic vacuum environment and carry out various tests.
With the acceleration of space exploration, higher requirements are put forward for space technology. Space environment simulator is the main equipment to ensure the safety of spacecraft during launch, operation and return. Vacuum environment is an important part of space environment simulator simulation on the ground.
Vacuum technology and space technology are closely related to the main link of space environment simulation, because launch vehicles, artificial satellites, manned spacecraft, space stations, space probes and space shuttles and other space vehicles, in the process of space flight, are carried out in the natural vacuum of the universe. Therefore, they are not only directly affected by the space vacuum environment, but also by solar radiation, charged particles and temperature. These factors will cause material performance changes or damage; instrument sensitivity failure, which will damage the work of these aircraft, and even cause astronauts'casualties. Therefore, it is very necessary to establish a space simulation experimental device on the ground to simulate the space environment. Because it's only through ground simulation experiments before all kinds of aircraft go to heaven. Only by mastering the conditions and characteristics of spacecraft working in space and eliminating various hidden dangers in flight can the safety of spacecraft and astronauts be ensured. In order to meet these requirements, many simulation devices have been built on the ground.
Dry screw vacuum pump has become the preferred product for large-scale space simulation vacuum system because of its advantages of clean, oil-free, high pumping speed, low vibration and low noise. In addition, in order to improve the pumping speed and limit vacuum of the vacuum unit and reduce the size of the screw pump accordingly, a two-stage unit consisting of a Roots pump and a screw vacuum pump in series or a three-stage unit consisting of two Roots pumps and a screw vacuum pump in series are generally adopted. In order to prevent particulate impurities from entering the pump, the inlet filters are equipped at the entrance of the vacuum unit with a precision of 50 microns.
As for the application of dry screw vacuum pump in aviation industry, if we want to have a deeper understanding, it will take a longer time. Because of the change of vacuum technology over time, researchers have made great efforts to study it. I believe that in the near future, vacuum pump can be applied to places that can not be applied at present, and always believe me. China's professional technology can lead the vacuum pump industry to lead a higher place.