What are the causes of plate leakage?
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What are the causes of plate leakage?
The main reason is the low gas-phase load.
The gas phase load is too low-----------------
Causes of liquid leakage: 1. The feed temperature is too low, far below the bubble point temperature of the material, resulting in insufficient vaporization within the tower； 2. Insufficient heat extraction from the bottom reboiler; insufficient vaporization heat at the tower bottom ； 3. The steam flow for bottom stripping is too low, resulting in a low linear velocity of the material inside the tower ； 4. Increased downcomer resistance (clogging)
In a sieve tray tower, during the gas-liquid contact process, when the gas velocity is low, some of the liquid drops directly through the sieve holes. Severe leakage can prevent liquid from accumulating on the sieve plate, thereby preventing normal operation. To prevent leakage, it is necessary to ensure a uniform distribution of gas so that gas can pass through each sieve hole. To achieve this uniform distribution, the design of the sieve plate structure should be appropriate, and an excessively low gas flow rate should be avoided. Agree with the comment above