Tag Archives: sorption pump

Sorption Pump

November 17, 2015vacuum pumpseelvaakum, gas pump, level of vacuum, low vacuum, madalvaakum, pre vacuum, prevac, pumbad, pump, pumping gas, pumps, sorption pump, sorptsioonpump, vaakum, vaakumpumbad, vaakumpump, vaakumsüsteemid, vac, vacuum, vacuum pump, vacuum pumps, vacuum system, vacuumpumpCaptain Corrosion

The sorption pump is an oil-free ‪#‎prevacuum‬ pump that is based on the adsorption of gases on cold surfaces. The colder the surface, the more efficient the pumping is! Therefore liquid nitrogen with a temperature less than 77 degrees Kelvin is used for cooling the adsorber. The adsorber is a porous zeolite with a very large surface area as the pores have a diameter in the range of a few nanometers (or less). If the pump is full, then it needs to be renewed by degassing, which is basically heating the adsorber so that the gas can remove the pump through the outlet.

Vacuum Systems and Technologies

May 12, 2015physics, Scientific Equipment, vacuum gauges, vacuum pumps3D animation, cryopump, diaphragm pump, diffusion pump, explained, hot filament ionization gauge, ion pump, leak finder, mass analyzer, mass spectrometer, penning ionization gauge, pirani, pirani gauge, piranimõõdik, quadrupole mass analyzer, quadrupole mass spectrometer, rotary vane pump, scanning electron microscope, scroll compressor pump, SEM, sorption pump, thermocouple gauge, titanium sublimation pump, turbomolecular pump, vaakum, vaakum-meetrid, vaakummeetrid, vaakumpumbad, vaakumpump, vaakumsüsteemid, vacuum, vacuum gauge, vacuum pump, vacuum system, working principle animation, XPSCaptain Corrosion

Vacuum can be understood as space from where matter (for example air) has been removed. It naturally exists in outer space but for certain applications, like materials characterization techniques, it needs to be achieved artificially. The desired level of vacuum is obtained with the help of a suitable vacuum pump. For example low vacuum (low quality vacuum with higher pressure) can be generated with a diffusion pump, scroll compressor pump, rotary vane pump, diaphragm pump or a sorption pump. High vacuum (high quality vacuum with very low pressures) however, can be obtained with high vacuum pumps such as the turbomolecular pump, ion pump, titanium sublimation pump and cryopump. The level of vacuum is measured with devices called vacuum gauges (vacuum meters) like the thermocouple gauge, pirani gauge, penning ionization gauge and the quadrupole mass spectrometer (analyzer). The working principle of vacuum pumps and vacuum gauges is explained with 3D animations in the video lecture above.