Mobile small nitrogen generators are specially developed for field pipeline pressure testing operations in petroleum, natural gas, chemical and municipal engineering industries, solving the pain points of traditional nitrogen supply methods such as high cost of bottled nitrogen, inconvenient transportation and low construction efficiency in field operations. Different from fixed industrial nitrogen generators, this type of equipment adopts an integrated skid-mounted mobile structure, with compact overall design, small floor area and self-contained walking support structure, which can be quickly transported to remote construction sites, mountainous areas and outdoor pipeline operation sites by vehicles. It supports on-site rapid startup and nitrogen production, realizing real-time nitrogen supply for pipeline pressure testing, pressure maintaining and leak detection operations, and greatly improving the convenience of field engineering construction.

In terms of technical performance, the mobile small nitrogen generator mainly adopts mature membrane separation nitrogen production technology, which has the advantages of fast startup, stable operation and low failure rate, and is suitable for complex and harsh field working conditions. The equipment can continuously produce high-purity nitrogen with a purity of 95%–99.9% and a flow rate of 5–50 cubic meters per hour, fully meeting the pressure test standards of oil and gas pipelines, water supply and drainage pipelines and industrial transmission pipelines. It is equipped with an intelligent pressure regulation system, which can automatically adjust the nitrogen output pressure according to pipeline pressure test requirements, maintain stable pressure in the pipeline for a long time, and avoid test data errors caused by unstable air pressure. In addition, the equipment is equipped with a rainproof, dustproof and shockproof shell, adapting to outdoor wind, rain and vibration environments during field construction.

In practical engineering applications, mobile small nitrogen generators have significant economic and operational advantages compared with traditional bottled nitrogen and liquid nitrogen tank cars. Field pressure testing operations require continuous nitrogen supply for several hours to several days, and the on-site nitrogen production mode of mobile equipment can save a large amount of gas purchase and transportation costs, while avoiding safety risks such as bottle leakage and handling collision. The equipment is equipped with an intelligent monitoring system, which can display nitrogen purity, flow rate, pressure and operating parameters in real time, and has automatic alarm and shutdown protection functions for overpressure, over-temperature and fault conditions. It is simple to operate, requiring no professional technicians for long-term duty, and is an essential supporting equipment for modern field pipeline pressure testing and maintenance projects.