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11
2021
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11
Points to use Pressure Swing Adsorption N2 SUS PSA Nitrogen Gas Generator
Pressure Swing Adsorption N2 SUS PSA Nitrogen Gas Generator is a safe, fast and pollution-free nitrogen production equipment, used in biomedical and chemical units, laboratories and other places where nitrogen is needed. According to different principles, it is mainly divided into pressure swing adsorption type and membrane filtration type.
1. Pressure swing adsorption nitrogen production.
Pressure Swing Adsorption N2 SUS PSA Nitrogen Gas Generator uses the difference in the adsorption capacity of nitrogen and other gas molecules in molecular sieves to form an accumulation of concentration differences, and produces high-purity nitrogen at the end of the molecular sieve column. At the same time, two molecular sieve columns are used, one absorbs and draws a part of the product gas for the other analysis, and realizes online regeneration of molecular sieve. The overall performance is that the instrument continuously outputs high-purity nitrogen.
Pressure Swing Adsorption N2 SUS PSA Nitrogen Gas Generator can adjust the purity and flow rate of nitrogen as required, and can produce up to 99.999% nitrogen product, with a flow rate ranging from hundreds of milliliters to tens of liters to several cubic meters per minute. The purity configuration is flexible and can be customized according to various needs. Applicable to various gas chromatography detectors.
2. The hollow fiber membrane method of Pressure Swing Adsorption N2 SUS PSA Nitrogen Gas Generator.
When two or more gases are mixed and pass through a polymer membrane, the difference in solubility and diffusion coefficient of various gases in the membrane results in different relative permeability of different gases in the membrane. According to this characteristic, gas can be divided into "fast gas" and "slow gas".
When the mixed gas is driven by the driving force-the pressure difference between the two sides of the membrane, the gas with a relatively fast permeation rate and water, oxygen, carbon dioxide and so on. Gases that are enriched on the permeate side of the membrane and have a relatively slow permeation rate, such as nitrogen and argon. It is enriched on the retention side to achieve the purpose of separating mixed gas.
When the pressurized purified air of the Pressure Swing Adsorption N2 SUS PSA Nitrogen Gas Generator is used as the gas source, inert gas such as nitrogen is enriched with high purity for production applications, and the oxygen-enriched air is discharged from the permeate side. The nitrogen membrane system can increase the nitrogen in cheap air from 78% to over 95%, and obtain 99.9% pure nitrogen.
Function and maintenance of Pressure Swing Adsorption N2 SUS PSA Nitrogen Gas Generator filter. The function of the filter is to remove water, dust, oil and organic gases.
If the filter element of the Pressure Swing Adsorption N2 SUS PSA Nitrogen Gas Generator is not replaced for a long time, the nitrogen quality will decrease, which will affect the experimental test results. Impurities in the gas will also increase the resistance of the filter, increase the pressure loss, and wear and tear of the carbon molecular sieve, nitrogen membrane and air compressor. In severe cases, it may cause the generator and back-end instruments to malfunction.
Replacing different levels of Pressure Swing Adsorption N2 SUS PSA Nitrogen Gas Generator filter elements can effectively filter particles of different sizes (0.01m-1m), effectively achieve gas-water separation, adsorb organic gases, and reduce system pressure loss. Depending on the type of gas generator, the number and configuration of filters will vary. Under normal circumstances, it is recommended to replace the filter element once a year.
Function and maintenance of Pressure Swing Adsorption N2 SUS PSA Nitrogen Gas Generator freeze dryer. The function of the freeze dryer is to remove the moisture in the compressed air and reduce the dew point temperature of the generated nitrogen to -40. Check the system pressure of the cold dryer in time to ensure that the moisture is completely removed, which can effectively avoid the expensive maintenance costs caused by moisture entering the mass spectrometer.
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