Seeking help regarding internal leakage in the liquid chlorine evaporator
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Experts, regarding the situation where a leak is detected in a liquid chlorine evaporator (tubular type), how can the faulty equipment be dealt with quickly and scientifically? Should the water in the shell side be discharged first, or should the remaining liquid chlorine in the evaporator be sent directly to the nitrogen trichloride storage tank via the bottom flow? Please give your experts some advice; thank you
Hot water as a heating medium? The latter is better, right?
It’s necessary to deal with the liquid chlorine in the evaporator first. The capacity of the nitrogen trichloride storage tank is likely not very large; if there is little liquid chlorine left in the evaporator, it can be considered for discharge into the nitrogen trichloride storage tank. Otherwise, neutralization and absorption should be considered as alternatives
It’s necessary to deal with the liquid chlorine in the evaporator first. The capacity of the nitrogen trichloride storage tank is likely not very large; if there is little liquid chlorine left in the evaporator, it can be considered for discharge into the nitrogen trichloride storage tank. Otherwise, neutralization and absorption should be considered as alternatives
Nitrogen trichloride has a higher density than water; after the discharge valve is opened, it is neutralized with caustic soda.
The main concern is that liquid chlorine and water in the tubes and bottom caps might react, leading to more serious consequences
The main concern is that liquid chlorine and water in the tubes and bottom caps might react, leading to more serious consequences
Thank you. Mainly, I’m worried that if liquid chlorine is released, the hot water inside the shell side could enter the evaporator tubes through leaks and react with the liquid chlorine, thereby damaging the equipment
However, discharging waste first will allow the water in the shell side to enter the liquid chlorine in the tube side through the leaks in the tubes.