Liquid Nitrogen Vaporizer

Working Principle:

After depressurized by the pressure regulator on vaporizer, liquid nitrogen enters the heat exchanger which is composed of aluminum alloy longitudinal fin tube bundle, absorbs the heat from the ambient air and vaporizes, reorganizes in the separator and feeds into the pipe network.

As the heat absorbed by liquid nitrogen all comes from the ambient air, the vaporizer should be set in an unobtrusive outdoor environment.

Local frosting is a normal phenomenon in the working process of air ambient vaporizer. It’s no need to use external force to remove so as to avoid damage to the heat pipe beam. Usually continuous gas industrial users could alternate with a spare vaporizer to work in order to natural gasification.

When liquid nitrogen accumulation and rises to the alarm height due to excessive use of gas, the remote level alarm will issue an audible and visual alarm, meantime the alloy float valve in the gas-liquid separator will automatically close to prevent excessive liquid. After troubleshooting, open the reset valve, the equipment can work normally.

Liquid nitrogen passes through the stainless steel tube immersed in warm water, absorbs the heat of warm water, vaporizes and overheats, and is removed and reorganized by the gas-liquid separator before entering the pipe network.

The set pressure of the safety valve on the vaporizer is 0.6Mpa, and the vaporizer is equipped with on-site display instrument for liquid oxygen inlet and outlet pressure.

Technical feature:

1. The main body is made of low temperature aluminum alloy argon arc welding, and the surface is treated with anti-corrosion.

2. The anti-fluid device is safe and reliable, and can be equipped with a remote warning system.

3. Series inlet pressure reducing valve to provide double protection of output pressure.

4. The safety release device provides overpressure protection in the heat exchanger.

5. There will be no reliquefy during transportation.

6. All key components of the equipment are made of high quality products.

7. According to the characteristics of foreign liquid nitrogen, the gasification section and the superheating section are integrated and the heat exchange area is increased, which is more suitable for foreign liquid nitrogen.

8. By absorbing natural heat in the environment to complete gasification, usually does not require any other energy, operation and maintenance costs are greatly reduced without polluting the environment.

9. Wide wing longitudinal low-temperature aluminum alloy finned tube.

10. Beam structure.

11. All stainless steel instrument box.

12. Explosion-proof air change system is optional.

13. If conditions permit, it can be installed outdoors, greatly reducing the investment in infrastructure, heating, power supply, and fire fighting projects.