[Production Version] Daily Question 2018-2-12 (Short Answer)
Thread Content
What are the reasons for excessively high or low temperatures at the bottom of the tower? How to adjust them? Excessively high: ① Too much steam is being used; reduce the amount of steam. ② The reflux volume is too low; increase it. ③ The liquid level in the tank is too low; adjust it accordingly. ④ The reflux temperature is too high; adjust the amount of cooling water used. Excessively low: ① Not enough steam is being used; increase the amount of steam appropriately. ② The reflux volume is too high; reduce it. ③ The pressure in the tower is too low; adjust it. ④ The liquid level at the bottom of the tower is too high; lower it appropriately. [New reminder] Participate in the “HaiChuan Reunion Year” themed New Year’s event and win 20,000 HaiChuan coins! ! ! - https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1921574&extra=page%3D1
①High steam volume: Reduce the steam volume. ② Low reflux volume: Increase the reflux volume. ③ Too low liquid level in the reactor: Adjust the liquid level accordingly. ④ High reflux temperature: Adjust the amount of cooling water used. If it is too low: ① Low steam volume: Increase the steam volume appropriately. ② High reflux volume: Reduce the reflux volume. ③ Too low pressure in the tower: Adjust the tower pressure. ④ High liquid level at the bottom of the tower: Lower the liquid level appropriately.
Too high: ① Excessive steam volume – reduce the steam volume. ② Low reflux volume – increase the reflux volume. ③ Too low liquid level in the reactor – adjust the liquid level accordingly. ④ High reflux temperature – adjust the cooling water volume. Too low: ① Insufficient steam volume – increase the steam volume appropriately. ② High reflux volume – reduce the reflux volume. ③ Too low pressure in the tower – adjust the tower pressure. ④ Too high liquid level in the reactor bottom – lower the liquid level appropriately.
Too high: ① Excessive steam volume – reduce the steam volume. ② Low reflux volume – increase the reflux volume. ③ Too low liquid level in the reactor – adjust the liquid level accordingly. ④ High reflux temperature – adjust the cooling water volume. Too low: ① Insufficient steam volume – increase the steam volume appropriately. ② High reflux volume – reduce the reflux volume. ③ Too low pressure in the tower – adjust the tower pressure. ④ Too high liquid level in the reactor bottom – lower the liquid level appropriately.
Too high: ① Excessive steam volume – reduce the steam volume. ② Low reflux volume – increase the reflux volume. ③ Too low liquid level in the reactor – adjust the liquid level accordingly. ④ High reflux temperature – adjust the cooling water volume. Too low: ① Insufficient steam volume – increase the steam volume appropriately. ② High reflux volume – reduce the reflux volume. ③ Too low pressure in the tower – adjust the tower pressure. ④ Too high liquid level in the reactor bottom – lower the liquid level appropriately.
①High steam volume: Reduce the steam volume. ② Low reflux volume: Increase the reflux volume. ③ Too low liquid level in the reactor: Adjust the liquid level accordingly. ④ High reflux temperature: Adjust the amount of cooling water used. If it is too low: ① Low steam volume: Increase the steam volume appropriately. ② High reflux volume: Reduce the reflux volume. ③ Too low pressure in the tower: Adjust the tower pressure. ④ High liquid level at the bottom of the tower: Lower the liquid level appropriately.
Too high: ① Excessive steam volume – reduce the steam volume. ② Low reflux volume – increase the reflux volume. ③ Too low liquid level in the reactor – adjust the liquid level accordingly. ④ High reflux temperature – adjust the cooling water volume. Too low: ① Insufficient steam volume – increase the steam volume appropriately. ② High reflux volume – reduce the reflux volume. ③ Too low pressure in the tower – adjust the tower pressure. ④ Too high liquid level in the reactor bottom – lower the liquid level appropriately.
Too high temperature: 1. Excessive heat supply from the heat source causes components with lower boiling points to evaporate in the tower bottom; 2. Low reflux rate at the tower top; 3. Increased pressure inside the tower; 4. Changes in the composition of the raw materials. Too low temperature: 1. Insufficient heat supply; 2. High reflux rate at the tower top; 3. Decreased pressure inside the tower; 4. Changes in raw material composition – adjustments: 1. Reduce or increase the heat supply from the heat source, 2. Adjust the operating pressure of the tower, 3. Adjust the reflux rate
Too high temperature: 1. Excessive heat supply from the heat source causes components with lower boiling points to evaporate in the tower bottom; 2. Low reflux rate at the tower top; 3. Increased pressure inside the tower; 4. Changes in the composition of the raw materials. Too low temperature: 1. Insufficient heat supply; 2. High reflux rate at the tower top; 3. Decreased pressure inside the tower; 4. Changes in raw material composition – adjustments: 1. Reduce or increase the heat supply from the heat source, 2. Adjust the operating pressure of the tower, 3. Adjust the reflux rate
Too high: (1) Large amount of steam; reduce the amount of steam. (2) The backflow volume is low; increase the backflow volume. (3) The level of the kettle liquid is too low; adjust the level appropriately. (4) The cooling water volume is low and the return temperature is high; adjust the cooling water volume appropriately. Too low: (1) The steam volume is small; increase the steam volume appropriately. (2) The backflow volume is high; it should be reduced. (3) Tower pressure... (2) Open the reboiler steam valve to vent steam. (3) If the steam valve head comes off, use a bypass for adjustment or replace the valve.
Too high: ① Excessive steam volume – reduce the steam volume. ② Low reflux volume – increase the reflux volume. ③ Too low liquid level in the reactor – adjust the liquid level accordingly. ④ High reflux temperature – adjust the amount of cooling water used. Too low: ① Insufficient steam volume – increase the steam volume appropriately. ② High reflux volume – reduce the reflux volume. ③ Too low pressure in the tower – adjust the tower pressure. ④ Too high liquid level in the reactor bottom – lower the liquid level appropriately