Process performance of liquid nitrogen equipment

Liquid nitrogen generatorUsed in food, medicine, chemical, electronics, textile, metallurgy and other industries. On-site high-speed nitrogen generation, PLC microcomputer fully automatic control, providing the required purity of nitrogen.

Liquid nitrogen generatorAlso known as nitrogen generator, nitrogen gas generator, nitrogen gas generator, nitrogen gas generator, nitrogen gas generator, nitrogen filling machine, PSA pressure swing adsorption nitrogen generator, nitrogen gas generator, nitrogen gas generator, nitrogen gas generator system. Working principle: Using the PSA pressure swing adsorption principle, with air as the raw material, the size of oxygen molecules is smaller than that of nitrogen molecules. Under pressure, oxygen molecules are preferentially adsorbed through microporous carbon molecular sieves, and nitrogen passes through the gaps in the molecular sieve into the nitrogen-rich buffer tank; one tower is pressurized to adsorb and enrich nitrogen, and the other tower is depressurized to desorb and regenerate the molecular sieve, PLC microcomputer fully automatic control. The two towers work alternately to continuously produce nitrogen gas of the required purity.

Special molecular sieve filling process, gas flow design, high adsorption rate, effectively preventing molecular sieve pulverization; three-stage filtration, pneumatic angle seat valve control, 3 million times of trouble-free operation; PLC fully automatic control, optional remote computer online control; if high-purity nitrogen is needed, you can choose the hydrogenation nitrogen purification device and carbon nitrogen purification device produced by our factory.

A nitrogen generator refers to a nitrogen generator with a large nitrogen flow rate, such as hundreds, thousands, or tens of thousands of cubic meters per hour. Used for enterprises with large nitrogen consumption. The liquid nitrogen generator can reach 12,000 cubic meters per hour, meeting the needs of medium and large-sized enterprises. Liquid nitrogen generator equipment is widely used in petroleum, natural gas, coal mining, chemical and other industries. The principle is to use compressed air after oil and water removal as raw material, and carbon molecular sieve as adsorbent, and the nitrogen generator maintains low pressure.

According to the different diffusion rates of oxygen and nitrogen in pure air in the carbon molecular sieve of the liquid nitrogen generator, the compressed air is switched to another adsorption tower for the same adsorption work, and the saturated adsorption tower is desorbed by reducing the pressure. The opening of the right exhaust valve allows these three valves to open to complete the left suction process, while the right adsorption tower desorbs. When the process is in a pressure equilibrium state, the solenoid valve controlling the pressure equilibrium is energized, other valves are closed, and the pilot gas is connected to the opening of the pressure equilibrium valve, so that the valve is opened to complete the pressure equilibrium process.

Liquid nitrogen generatorThe wholesale price needs to maintain the system pressure again to confirm the success of the leak welding, the electromechanical integration design realizes automatic operation, and the imported PLC controls the fully automatic operation. Adjust the opening of the purity valve according to the required nitrogen purity, and automatically switch to the nitrogen storage tank after the purity is qualified. The automatic switching of valves in the entire system is automatically controlled by the computer. After the leak point is processed, the nitrogen storage pressure in the nitrogen storage tank is generally around pa, and the air is compressed by the air compressor and enters the oxygen storage tank through the oxygen-making valve. This process is called left suction, lasting tens of seconds.