Tank truck nitrogen purge explosion-proof nitrogen generation system is a special safety protection system designed for oil tank trucks, chemical liquid tank trucks, and flammable and explosive medium transportation vehicles, which is used to replace flammable gas, oxygen, and volatile oil gas in the tank body to eliminate explosion hidden dangers. The core principle of the system is to use high-purity inert nitrogen to complete full-space replacement and positive pressure protection inside the tank, reducing the oxygen concentration and combustible gas concentration in the tank to below the explosion limit. This solution is suitable for tank truck daily maintenance, oil product loading and unloading, tank cleaning, and long-distance transportation protection scenarios, and fully complies with national explosion-proof safety standards for hazardous chemical transportation equipment.

The system adopts a skid-mounted integrated design, integrating nitrogen generation unit, explosion-proof compression unit, precise pressure regulation unit, gas distribution pipeline, and intelligent control system into a compact integral structure, which is convenient for mobile use and fixed installation in tank truck service stations. The nitrogen generator adopts mature PSA pressure swing adsorption technology, with nitrogen purity stably controlled at 99.9% and above, which meets the inert protection standard for flammable and explosive gas replacement. The whole machine adopts Ex d II BT4 explosion-proof grade design, all electrical components such as motors, controllers, and sensors are explosion-proof certified, and the pipeline joints are sealed with explosion-proof and leakage-proof structures to avoid electric spark and gas leakage risks in flammable environments.

The system is equipped with an intelligent automatic purge control function to realize standardized and safe replacement operation. The built-in oxygen concentration sensor and pressure sensor can monitor the real-time oxygen content and internal pressure of the tank in real time. When the oxygen concentration exceeds the set threshold, the system automatically starts nitrogen purge; when the standard concentration is reached, it automatically stops gas supply and maintains micro positive pressure in the tank to prevent external air from entering. In addition, the system is equipped with overpressure protection, over-temperature protection, and emergency stop protection functions. In case of abnormal pressure or temperature during operation, the equipment will automatically cut off the gas circuit and power supply to ensure the absolute safety of the tank truck replacement operation. The mobile skid-mounted design adapts to different tonnage tank trucks, with fast purge speed and high replacement efficiency, which greatly improves the safety and efficiency of tank truck operation.