Catalytic thermal system
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This device’s distillation system features a hot water system for low-temperature heat utilization, and air blockages often occur at the outlet of the air-cooled section. What is the reason for this? How can this system be optimized for control?
The pressure in the hot water system is low, or the temperature after heat exchange is high.
The temperature is too high, causing it to heat up and vaporize.
Most air resistance in air-cooling systems is caused by the liquid phase not filling the entire air-cooling space! We encountered a similar situation here before; eventually, by checking the cooling temperature after each air cooling step, we identified the sources that could cause the phenomena described earlier. We found a point where venting could be carried out in a controlled manner, and after removing the liquid that had accumulated in the air coolers, the cooling temperature improved significantly. The problems caused by air resistance also ceased to occur. Another reason is the unreasonable design, which causes flow deviation in the air cooling system; in such cases, it is necessary to improve the situation by closing the air cooling outlet valve!
Not all of them experience air blockage; the circuits where such blockage occurs frequently are those specific ones.
Based on the situation you described, if there is still an air blockage issue after exhaust, it is recommended to check whether the current hot water circulation volume is lower than the designed value, and whether the temperature before cooling is higher than the designated level. Normally, there should be no issue with uneven airflow in the cooling system; therefore, it’s advisable to focus on the hot water circulation volume. If what you’ve described matches my findings, increasing the circulation volume could help reduce the temperature before cooling. That’s just my personal opinion.
Designed for 1,000 tons; current weight is over 800 tons. Temperature before cooling is around 85°C
There’s no major issue with the two parameters; first, exhaust the air and see if this situation persists.