Core Principle of Liquid Nitrogen Dosing Machine

The core principle of liquid nitrogen dosing machine is based on the physical property of cryogenic liquid nitrogen (-196°C) rapidly vaporizing and expanding at room temperature.  The liquid nitrogen dosing system drips a precise dose of liquid nitrogen into the packaging container, where the liquid nitrogen rapidly vaporizes and expands approximately 700 times, instantly expelling air from the bottle and achieving oxygen removal for preservation and pressurization to prevent collapse. It is commonly used to increase the hardness of PET bottled mineral water and edible oil, and preserve beverages and food.

Detailed Explanation of Core Principle

1. Precise Dosing: The liquid nitrogen dispensing machine, through a control system with vacuum-insulated pipes and solenoid valves, injects extremely small and precise amounts of liquid nitrogen (LN2) through a nozzle into beverages, food, or containers (such as PET bottles).
2. Vaporization and Expansion: Because liquid nitrogen (LN2) is at an extremely low temperature of -196°C, when it enters a container at ambient temperature, the liquid nitrogeninstantly absorbs heat and vaporizes into nitrogen gas (N2), expanding approximately 700 times in volume from a liquid to a gaseous state.
3. Displacement and Sealing: Due to the rapid vaporization of liquid nitrogen, it quickly displaces oxygen and air from the top of the container, thus isolating oxygen and preventing food oxidation. After vaporization sealing, the nitrogen gas is sealed inside the container.
4. Pressure Enhancement and Rigidity: After sealing, the remaining liquid nitrogen continues to vaporize, creatinghigherpressure inside the bottle than atmospheric pressure. This enhances the rigidity of the lightweight packaging, making the bottle less prone to deformation and facilitating transportation and stacking.

Specifications of Liquid Nitrogen Filling Machine for Edible Oil

Model No.: BO300 Liquid nitrogen injector

1. Raw material: SUS304
2. Empty weight: 15kg
3. Size: 950*177*603mm
4. Power: 100W 220V 50Hz
5. LN2 pressure: <0.15Mpa
6. Gas N2 pressure: 0.5-0.65Mpa
7. LN2 dosing head size: 280*51mm
8. Arm length: 328mm
9. Dosing nozzle size: 1mm, 1.5mm, 2mm
10. LN2 consumption: 0.2L/h
11. Dosing time: 15-1000ms adjustable
12. Dosing volume: 0.01-14g/time adjustable
13. Dosing accuracy: ±5%
14. Spot spray speed: 0-800bottles/min
15. Max. continuous spray speed: 2000bottles/min
16. Remarks: (0086)18882125191

More liquid nitrogen dosing machines for mineral water, beverages and food are available.