Method for use dependent complete evaporation of liquid nitrogen

Details Method for use dependent complete evaporation of liquid nitrogen Method for use dependent complete evaporation of liquid nitrogen

1985-09-04

1987-06-30

Favors, Edward G.

Liquid heaters and vaporizers

Film

122 32, F22B 2700

Patent

active

046762000

ABSTRACT:
A method for the consumption dependent complete vaporization of liquid nitrogen oxide is shown where the liquid nitrogen oxide under pressure is passed through a buffer tank and is charged into a falling film evaporator. The unevaporated residual amount of nitrogen oxide is then subjected to heat in an after evaporator in order to completely vaporize the nitrogen oxide. The combined streams are then led out of the falling film evaporator and after evaporator through at least one safety trap to the ultimate take-off points. This results in the charge of the liquid material to the falling film evaporator being controlled through the pressure in the conduit system between the falling film evaporator and the points of utilization and permits a constant, previously determined pressure to be maintained in the system independently of the amount of material withdrawn.

REFERENCES:
patent: 3175962 (1965-03-01), Holtslag
patent: 3405689 (1968-10-01), Petersen
patent: 4175395 (1979-11-01), Prost et al.
patent: 4278050 (1981-07-01), Kime

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