Carbon molecular sieve pressure swing adsorption (PSA) nitrogen making machine is a new type of high-tech equipment for air separation, using compressed air as raw material, carbon molecular sieve as adsorbent, using pressure swing adsorption process to produce nitrogen. Under normal temperature and pressure, the difference of adsorption amount of oxygen and nitrogen in the air on the surface of carbon molecular sieve and the difference of diffusion rate of oxygen and nitrogen in carbon molecular sieve are used to control the opening and closing of the pneumatic valve through a programmable controller to realize the process of pressurized adsorption and decompression desorption, complete the separation of oxygen and nitrogen, and obtain the required purity nitrogen. The purity and gas production of nitrogen can be adjusted according to customer requirements. The company produces PN series of nitrogen type nitrogen machine, nitrogen purity is 95%--99.999%, gas production is 1Nm3 /h--3000Nm3 /h.

If the customer requires high-purity nitrogen, you can match the hydrogenation or carbon deoxidation series nitrogen purification device produced by our company behind the nitrogen machine, the purity can reach 99.999%, the dew point can reach -60°C, the oxygen content of 10ppm of high-purity nitrogen.

PSA nitrogen machine features

Low cost: PSA advanced process is a simple method of nitrogen production, a few minutes after the boot to produce nitrogen, low energy consumption, nitrogen cost is much lower than cryogenic air separation nitrogen and liquid nitrogen on the market.
2, reliable performance: imported microcomputer control, fully automatic operation, no need for special training operators, just press the start switch, you can automatically operate, to achieve continuous gas supply.
3, stable nitrogen purity: fully monitored and displayed by the instrument to ensure the required nitrogen purity.
4, the selection of high-quality imported molecular sieve: with large adsorption capacity, strong compression performance, long service life and other characteristics.
5, high-quality control valve: high-quality imported special pneumatic valves can ensure the reliable operation of nitrogen production equipment.
6, strong technical force and excellent after-sales service: on-site installation only pipelines and power supplies, professional and technical personnel guidance and regular visits, so as to ensure stable and reliable equipment, long-term operation.



Application field of PSA nitrogen making machine

one SMT industry Applications

Nitrogen filled reflow welding and wave soldering, nitrogen can effectively inhibit the oxidation of solder, improve the welding wettability, accelerate the wetting speed to reduce the generation of tin balls, avoid bridging, reduce welding defects, and obtain better welding quality. Use nitrogen with a purity greater than 99.99 or 99.9%.

two Semiconductor silicon industry applications

Atmosphere protection, cleaning, chemical recycling for semiconductor and integrated circuit manufacturing processes.

Three. Semiconductor packaging industry applications

Encapsulated, sintered, annealed, reduced and stored with nitrogen. The pressure swing adsorption nitrogen machine helps the major manufacturers in the industry to win the opportunity in the competition and achieve effective value enhancement.

Four. Electronic components industry applications

Selective welding, purging and packaging with nitrogen. Scientific nitrogen inert protection has proven to be an essential part of the successful production of high-quality electronic components.

Five. Chemical industry, new material industry application

Nitrogen is used to create an oxygen-free atmosphere in the chemical process, improve the safety of the production process, and the power source of fluid transportation. Oil: can be used in the system pipeline container nitrogen purge, storage tank nitrogen filling, replacement, leak detection, flammable gas protection, also used in diesel hydrogenation and catalytic reforming.

Six. Powder metallurgy, metal processing industry, heat treatment industry applications

Steel, iron, copper, aluminum products annealing, carbonization, high temperature furnace protection, low temperature assembly of metal parts and plasma cutting.

7. Food and pharmaceutical industry applications

Mainly used in food packaging, food preservation, food storage, food drying and sterilization, medical packaging, medical replacement gas, medical conveying atmosphere, etc.

Viii. Other areas of use

In addition to being used in the above industries, nitrogen making machines are also widely used in many fields such as coal mining, injection molding, brazing, tire nitrogen filling, rubber vulcanization and so on. With the progress of science and technology and the development of society, the use of nitrogen devices is more and more extensive, on-site gas (nitrogen machine) with its investment, low cost, easy to use and other advantages have gradually replaced liquid nitrogen evaporation, bottled nitrogen and other traditional nitrogen supply methods.

Process principle

The principle of pressure swing adsorption is that in the case of adsorption equilibrium, when any kind of adsorbent absorbs the same gas, the higher the gas pressure, the greater the adsorption amount, on the contrary, the lower the pressure, the smaller the adsorption amount. The core part of PSA nitrogen making equipment is carbon molecular sieve, when the air pressure rises, carbon molecular sieve will absorb a large amount of oxygen, carbon dioxide and water, when the pressure is reduced to normal pressure, carbon molecular sieve adsorption of oxygen, carbon dioxide and water is very small.

Technical indicators of nitrogen production device:

Flow rate 3-3000Nm3/h,
Purity 95%-99.9999%,
Pressure ≤0.8MPa,
Dew point ≤-45℃.