Nitrogen generator leakage is an unexpected common fault in daily operation. Timely and correct emergency response can avoid safety accidents, equipment damage, and gas waste, while improper handling will aggravate faults and cause secondary risks. All users must master standardized leakage emergency handling processes, from on-site disposal and fault detection to post-repair prevention, to ensure rapid and thorough resolution of leakage problems.
First, implement immediate emergency on-site disposal once leakage is found. When abnormal air leakage, pressure drop, or hissing noise is detected, the first step is to stop the generator’s operation immediately and cut off the power supply to prevent continuous equipment operation from aggravating leakage and causing circuit failure. Then open indoor doors and windows fully to enhance air circulation, discharge accumulated nitrogen in closed spaces, and avoid oxygen deficiency risks. Isolate the equipment leakage area, keep personnel away from the machine and pipeline leakage points, and prohibit open fire and electric spark operation near the equipment to avoid accidental risks. Do not touch the leakage pipeline and valve with hands to prevent frostbite and component damage caused by high-speed gas outflow.
Second, locate leakage points accurately and carry out targeted fault repair. After the equipment pressure is completely stabilized, conduct a full-system leak detection with the foam detection method or professional leak detector. Classify leakage faults according to the detection results: for minor leakage caused by loose joints and untight valves, tighten the threaded interface and close the valve tightly to eliminate faults directly; for leakage caused by aging, deformation, and damage of sealing rings and gaskets, replace the damaged sealing accessories with new matching parts; for medium and major faults such as pipeline cracks, weld gaps, and valve core failure, replace the damaged pipeline and valve components completely after closing the main gas circuit valve and releasing residual pressure.
Third, conduct post-repair inspection and equipment commissioning. After completing the leakage repair, keep the equipment in pressure holding state for 30 minutes, and conduct secondary leak detection to confirm that all leakage points are completely repaired without residual hidden dangers. Check whether the equipment pressure, nitrogen purity, and gas output return to normal rated parameters, and observe the equipment operating status for 15–20 minutes to ensure no abnormal noise and pressure fluctuation. If the parameters are stable and no leakage occurs, the equipment can be put into normal use again. Record the leakage fault cause, repair parts, and processing process for subsequent maintenance reference.
Finally, establish long-term preventive measures to avoid repeated leakage. Formulate a regular leak detection maintenance plan, conduct full-system leakage inspection every month, and replace aging sealing accessories and vulnerable parts regularly. Standardize daily operation, avoid violent vibration, random disassembly, and over-pressure operation of the equipment, which easily cause pipeline and valve damage. Strengthen daily cleaning and moisture-proof maintenance to avoid component corrosion and sealing failure caused by damp and dust. Perfect emergency response and daily prevention mechanisms can fundamentally reduce the probability of nitrogen generator leakage faults and ensure long-term stable and safe equipment operation.
