What are the symptoms of internal leakage in an acidic water stripping reboiler?

There is a leak in the stripping reboiler; the steam pressure is higher than that of the purified water, so steam enters the stripping tower along with the purified water. Depending on the amount of internal leakage, the following phenomena will gradually occur: 1. The flow rate of the purified water output device increases; changes in the device’s flow rate and the position of the control valve can be used to monitor the liquid level in the condensate tank. 2. The amount of steam condensate decreases, as reflected in the change in the valve position of the liquid control valve in the condensate tank. 3. The equilibrium within the stripping tower may be affected by steam entering the tower directly, resulting in changes in equilibrium; for example, changes in the ammonia peak lead to variations in the amount of product extracted via side streams, changes in the bottom temperature of the tower, and changes in the steam consumption per unit volume of product. 4. The quality of the purified water improves compared to its original state; under the same steam flow rate, the utilization efficiency of thermal energy when the water enters the tower may increase, and the steam entering the tower also serves to dilute the water. 5. At the site, the impact sound resulting from the leakage in the tube bundle may be heard, and this varies depending on the location of the leaking tubes. It is also recommended that a kettle-type reboiler be used in the selection of the stripping tower reboiler, as this can effectively reduce internal leakage.

Thank you! I’ve learned it! If there is internal leakage, does the liquid level in the stripping tower affect the steam volume?

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Can double-tower pressurization be considered as well?