Ask a question about distillation
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Dear heroes, here is a question how do you solve it? During distillation, there is a judgment condition to determine whether the condenser is faulty. For example, when the temperature of the condensate exceeds 30 degrees, it is judged that the condenser is faulty or the effect is not good, and the system is suspended. However, in summer, the initial temperature at the condensation point has exceeded 30 degrees, and the system also judges the fault. How to solve it is better. Use time to judge. It is not sure when there will be distillate. The time is not easy to regulate, and the temperature is not perfect. You* * How did the company solve this small problem?
My level is limited and I don’t understand much. Is it possible to judge by temperature difference? Under the same feeding and discharging conditions, the temperature difference change of the condensate should be constant. I think so, but it may be wrong.
2# navywanghb I have also thought about using temperature difference, but I am not sure what is a good value for this value. If we judge by the temperature difference between the reaction kettle and the condensate, before the system is distilled, the temperature difference should be very small. When the effluent comes down, the temperature difference should become larger. This is a process that first becomes larger and then becomes smaller. I don’t know how to write it better.
“The conditions for judging whether the condenser is faulty are:: 1. Determine whether there is scaling based on the temperature difference or pressure difference between the inlet and outlet of the hot and cold heat exchange fluids. 2. If the condenser leaks, it can be judged according to the following methods: 1. Analyze whether there are high-pressure side components on the low-pressure side of the hot and cold fluids. If there is a large amount of leakage, it can be judged based on its color and smell. If there is a small amount of leakage, chemical analysis can be used to detect it. ⒉Make full use of the flow meter to see if there are any changes before and after heat exchange. 3. Stop the machine for maintenance and pressure the heat exchanger to test for leaks.
Personally think: This question is difficult to answer. If your condensate is not continuous, the flow rate should not be said to be stable. Rely on experience!