Liquid nitrogen refueling machine
                                                                       Liquid nitrogen refueling machine
         The liquid nitrogen dispenser can accurately control the amount of liquid nitrogen and has the ability to add nitrogen without containers. It is programmable by PLC and has a compact appearance. It is easy to install and can be used with any production line. All pipelines are insulated with vacuum liquid nitrogen, which can ensure lower liquid nitrogen consumption and a frost free operating environment to a greater extent.

a. Working conditions of liquid nitrogen refueling machine:
1. Liquid nitrogen supply: Adjust to 15 (0.1MPa) and connect to the liquid nitrogen port.
2. Compressed air or nitrogen: used to supply the operation of the filling valve. need ¼″ A pipeline with a diameter and pressure range of 50-100 psig (3.4-6.9 bar). The set pressure is 50 psig (0.35MPa), and too high a pressure setting can cause significant impact, which is not conducive to the lifespan of the filling valve core and internal vacuum pipeline.
b. Liquid nitrogen metering and filling system:
1. No tank or filling interval filling method, reducing the consumption of depressurized liquid nitrogen and reducing operating costs.
2. Vacuum insulation - With a particularly low daily evaporation rate of about 0.15 liters per hour, the liquid nitrogen machine reduces operating costs.
3. The nozzle nitrogen care system prevents external air from entering the spray chamber and frosting inside.
4. Liquid nitrogen horizontal positioning control, stable horizontal pressure, improves the accuracy of liquid nitrogen dosage,
5. Simultaneously reduce the loss of liquid nitrogen caused by flash evaporation of liquid nitrogen.
6. The liquid level is controlled by the positioning of the power system, eliminating maintenance issues related to electronic liquid level control system and electric valve malfunctions.