The principle of nitrogen generator is introduced to the pressure swing adsorption

The principle of the nitrogen generator introduces the membrane separation to make nitrogen membrane separation technology to let the compressed air pass through the hollow fiber membrane, when the air passes through the membrane, the oxygen, carbon dioxide, carbon monoxide and water vapor in the air will pass through the small holes in the hollow fiber membrane pipe and then discharge into
the atmosphere.
At the outlet of the membrane, large nitrogen molecules and inert gas argon are collected and transported to the application equipment
.
This nitrogen separation extraction technology is simple and efficient and does not require any moving parts
.
The isolated nitrogen can reach a high purity of 99.
5% and does not contain any impurities
.
Pressure swing adsorption technology is to separate a single component in the gas mixture by solid medium, use pressure swing adsorption technology to separate nitrogen in the air, the required solid medium is a carbon molecular sieve, carbon molecular sieve selectively adsorbs oxygen in the air, thereby separating nitrogen and oxygen
in the air under pressure.
For liquid mass spectrometers, nitrogen purity above 95% can be used for most mass spectrometers, even some very sensitive mass spectrometers
.
The key is that the gas can not contain any dust, water vapor and hydrocarbons and oil droplets, so the high-performance filtration system is particularly important, the dust removal specifications of the filtration system should be less than 0.
01 microns, at the same time, the oil droplets and water vapor are also removed
.
Since once the filtration system is saturated, their filtration adsorption effect will also be greatly reduced, so it is also necessary
to maintain the filter every year.
For the liquid mass spectrometer, respectively, the use of membrane separation technology and pressure swing adsorption technology to produce nitrogen products we have, however, for some small and medium-sized laboratories, the choice of membrane separation of nitrogen generators has some very obvious advantages Maintenance and service membrane separation technology involves very few moving parts, under normal circumstances, a nitrogen generator inside the nitrogen film weighs 3 kg (and the weight of the pressure swing adsorption module can reach 100 kg), which makes maintenance simple
。 Size and weight Due to the small size and light weight of the nitrogen film, this means that we can design a lighter and smaller, more compact gas generator, at the same time, so that the generator can be placed under the standard test bench, the generator bottom caster design, easy to move
.
Noise level Membrane separation technology does not produce any noise, pressure swing adsorption technology in the carbon molecular sieve column pressure relief and deflation, there will be a large sound of deflation, which means that the membrane separation nitrogen generator can be placed next to the application instrument, quietly working
.
There is no need to place the generator in another room, which increases the additional costs
incurred in pipe lengthening.