Nitrogen is widely distributed in nature and is the main component of air (accounting for about 78%). It is colorless, odorless, non-flammable, and non-explosive under normal temperature and pressure. However, its molecular structure is very stable, and its chemical properties are highly inert, making it difficult to react with other substances. Due to its significant inertness, it is widely used as a protective gas.

Industrial nitrogen production uses air as the raw material, separating oxygen and nitrogen from it. The main methods include cryogenic air separation.

Marine nitrogen generators utilize the pressure swing adsorption principle and carbon molecular sieves to separate oxygen and nitrogen from the air to produce nitrogen. They offer advantages such as a simple process flow, small footprint, low investment, easy operation, and convenient maintenance. The purity of the nitrogen product can be adjusted according to actual needs, and the system has good adaptability. The entire unit operates continuously in cycles and can be automated.

Currently, the ship types involved in our nitrogen generators include oil tankers, chemical tankers, LPG carriers, LNG bunkering barges, dual-fuel powered ships, PSVs, AHTS workboats, and offshore platforms. Hangzhou Lecheng Gas Equipment Co., Ltd. is a professional manufacturer of nitrogen generators with unique expertise and technology in nitrogen generation research. We welcome everyone to visit and provide guidance.

Equipment Features of Marine Nitrogen Generators:
1. Easy to expand, meeting the growing gas demand of users;
2. Fast startup time, providing qualified nitrogen within 5 to 15 minutes;

3. Fully automated operation, enabling unmanned operation throughout the process;

4. Stable and adjustable pressure, purity, and flow rate to meet different customer needs;
5. Compact structure, advanced process, safe and stable operation, low energy consumption, and small footprint;

Startup Procedure for Marine Nitrogen Generators:
1. First, start the compressor and the refrigerated air dryer. When the pressure reaches 1.0 MPa, the compressor will automatically stop.
2. Press the power button of the nitrogen generator, and it will start running automatically. Adjust the pressure of the pressure-reducing valve on the lower right to around 0.8 MPa.
3. Slightly open the outlet flow valve on the upper right that is not connected to the pipeline to allow venting. At this point, the nitrogen purity can be visibly observed rising. After 20–30 minutes, the purity can reach over 99%.
4. Close the vent valve and open the outlet flow valve connected to the pipeline. Do not fully open this valve. Open the rear door of the equipment and adjust the outlet pressure-regulating valve to 0.6 MPa. Qualified nitrogen is then delivered to the nitrogen storage tank in the workshop.
5. Open the drain valve at the bottom of the nitrogen storage tank and allow a small amount of venting for 3–5 minutes before closing the drain valve.
6. When the pressure in the nitrogen storage tank reaches 0.5–0.7 MPa, production and packaging can begin.