Household small nitrogen generator is a miniaturized civilian nitrogen production equipment designed for household daily use, small DIY experiments, household food fresh-keeping, and small instrument protection scenarios. Different from industrial large-scale nitrogen production equipment, household nitrogen generators have the characteristics of small volume, low power consumption, simple operation, safety and energy saving, and no professional operation technology is required. The equipment mainly adopts membrane separation and miniature PSA adsorption technology, with low nitrogen production pressure and high safety, which is suitable for household environment use. Standardized self-made nitrogen operation steps can ensure the safe and stable operation of the equipment and obtain qualified high-purity household nitrogen.

Before operating the household small nitrogen generator to produce nitrogen, pre-operation inspection and preparation work need to be completed first. Firstly, place the equipment on a flat, dry, and ventilated household desktop or ground, avoiding placement in humid, high-temperature, and closed environments to prevent equipment damp failure and poor heat dissipation. Check whether the power cord is intact and whether the voltage matches the household standard voltage to avoid power failure and equipment burnout. Open the equipment shell ventilation port to ensure smooth air intake and heat dissipation, and check whether the external gas pipe is connected tightly without air leakage. For equipment with a built-in filter element, confirm that the filter consumable is in normal working state and not expired or blocked.

The formal nitrogen production operation is automated and simple. After completing the pre-inspection, insert the power supply and turn on the equipment main switch. The equipment will start the self-inspection program automatically, and the internal air compression and air intake system will start to work. After 2-3 minutes of equipment preheating and air source purification, the nitrogen generator will officially start nitrogen separation and output nitrogen stably. The household equipment is equipped with a constant pressure and constant purity control system, which does not need manual parameter adjustment. Users only need to connect the gas outlet pipe to the terminal use equipment such as food fresh-keeping boxes and small experimental instruments to complete nitrogen filling and protection work. During operation, avoid moving the equipment at will to prevent internal pipeline displacement and air leakage.

After the nitrogen production work is completed, standardized shutdown and maintenance operations are required. First, close the terminal gas use switch, cut off the equipment gas output, and keep the equipment running idle for 1-2 minutes to purge the residual gas and impurities in the internal gas circuit. Then turn off the main power switch and unplug the power supply to avoid long-term standby power consumption. Regular daily maintenance is crucial for household equipment. It is necessary to clean the equipment surface dust and air intake filter cotton every week, replace the built-in filter consumables every 6-12 months, and place the equipment in a dry and ventilated environment when not in use for a long time to extend the service life of the equipment and ensure the stability of self-made nitrogen quality.