Food nitrogen generatorIt is a specialized equipment for producing food grade nitrogen, which can separate nitrogen from oxygen and impurity gases in the air, producing high-purity nitrogen. It is widely used in food preservation, packaging and other fields.
Food nitrogen generatorThe mainstream technology for separating nitrogen from air through physical methods can be divided into two categories:
1. Pressure Swing Adsorption (PSA) technology
Principle: By utilizing the stronger adsorption capacity of carbon molecular sieves (CMS) for gases such as oxygen and carbon dioxide than nitrogen, separation is achieved through a cyclic process of pressurized adsorption and depressurized desorption.
Process: Compressed air enters the adsorption tower after pre-treatment, and CMS adsorbs impurities such as oxygen under high pressure, while nitrogen passes through; Desorption of impurity gas under low pressure to complete regeneration.
2. Membrane separation technology
Principle: By utilizing the difference in permeation rates of different gas molecules through polymer membranes, small molecule gases such as oxygen and carbon dioxide preferentially pass through the membrane wall, while nitrogen is intercepted.
Process: Compressed air enters the membrane module, nitrogen is enriched on the inlet side, and oxygen rich gas is discharged.
Basic components:
Air compression system: Provides raw air source and compresses air to a certain pressure through a compressor.
Pre processing system: removes impurities such as oil, water, and dust from the air to ensure the smooth progress of subsequent separation processes.
Separation host: such as carbon molecular sieve tower, is the core equipment for achieving nitrogen oxygen separation.
Nitrogen purity adjustment system: The nitrogen purity can be adjusted according to demand, with a general purity range of 95% -99.999%.
Gas storage system: stores and stably outputs nitrogen gas to ensure the continuity of nitrogen supply.
Control system: Implement automatic operation, remote monitoring, safety alarm and other functions to ensure the stable operation of equipment.