Causes of abnormal liquid level in the falling film absorber in the two-in-one graphite synthesis furnace system
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This post was last edited by sunjl1981 on 2013-1-6 at 23:56. A few days ago, I encountered a problem on site: the liquid level in the falling film absorber was above the sight glass, and all that could be seen were bubbles; it was much higher than usual. Despite making adjustments, the situation persisted, and I’m not sure of the reason. I’d like to ask everyone for advice. This post was last edited by yjq on 2007-12-4 12:50 ] # ， ， &
There may be issues with the liquid output from the falling film absorber; it is recommended to check the liquid outlet pipeline system
The question isn’t detailed enough; I don’t know how to answer it. However, please check your lower acid U-tubes to see if the height is sufficient
1. The liquid level in the falling film absorber is above the sight glass at the lower part. 2. The height of the acid-down U-tube has remained unchanged. 3. There is still flow from the falling film absorber to the hydrochloric acid storage tank.
1. The vacuum of the water flow pump after the synthesis furnace is changing； 2. The production volume in the synthesis furnace changes, commonly referred to as “acid suspension”” ； 3. Changes in air pressure within the acid storage tank: the existing pressure difference is insufficient to provide the necessary driving force for the flow of acid, or there are issues with the pipes used for transporting the acid ；
It’s likely that the pumping power of the jet pump is too low, resulting in excessive positive pressure in the acid tank; hence, the acid is added slowly, which gradually led to the situation described by the original poster: lol. This post was last edited by limingshuguang on 2007-12-13 at 15:08.]
How is the pressure in the furnace changing? According to what the poster said, it’s caused by poor flow of acid. You can check whether the flow in the pipes carrying dilute acid is smooth, and when designing the absorber it’s necessary to take into account the height difference with the storage tank, in order to minimize resistance in the acid delivery pipes and add gas-liquid balance tubes to help with degassing.