Hot water circulation system
Thread Content
In one of our company’s new processes, there are two exchanger units at the top of the distillation towers that use hot water for heat exchange; a narrow temperature range for heat exchange is required. The process design calls for a hot water circulation at around 105–110 degrees. Currently, this is implemented as a closed-loop system, with a hot water circulation pump providing the driving force, and the hot water is replenished using liquid at a low pressure of 0.5 Mpa. Condensers are installed in the pipelines to control the temperature； The problem currently existing is that the system often runs out of water, the hot water pump suffers from cavitation, and a circulation cycle cannot be established. I would like to ask those with more experience if there are any good solutions for this issue
We have also considered adding a buffer tank to the return water pipeline behind the condenser; for 300 m3 of hot water per hour, what size buffer tank would be needed?
Increase the pressure in the hot water circulation system to reduce hot water cavitation.