Why is the intake temperature for the second suction higher than that for the first suction?
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Some time ago, our plant was shut down for two months; after it resumed operation, we found that the intake temperature of the second intake stage was about 10 degrees higher than that of the first intake stage. I’d like to ask what might be the cause; the issue with the thermocouple has been ruled out
This question is too general. . . First, you need to check whether the process parameters related to the temperatures of the secondary and primary air intakes have changed, as well as whether there are any changes in the process parameters of the thermal system media. Additionally, it is necessary to consider the opening degrees of the water bypass valves, as well as those of the auxiliary valves used for heat exchange in the converter, as well as the conversion temperature, in order to draw a conclusion. . . . .
I have another question: after making a comparison, it was found that both the temperature of the acid entering the tower and the temperature of the acid exiting the tower increased, while the temperature of the air entering the tower decreased. Could it be that heat was transferred to the acid, which caused the temperature of the air entering the tower to drop? What are the effects of inhaling cold air?
The comparison also showed that the temperature inside drops when air is drawn in, but the temperature outside rises. Is there a direct connection with higher acid concentration and temperature? Seeking advice
Hehe, in my opinion, the temperature of the gas entering the absorption tower has absolutely no relation to the temperature of the acid; it’s completely unrelated. On the other hand, the temperature of the gas exiting the tower is closely related to the temperature of the acid inside the tower.
What is the process of conversion heat exchange?
It’s indeed difficult to answer your question without knowing the actual situation. If this occurs two months after production was halted, you need to check whether the conversion temperature has shifted, meaning that the conversion rate has decreased
In this case, you need to upload the converted dry-suction DCS screen; otherwise, how can others help you determine it?
The question is too general – valve adjustment, acid level, heat exchange conditions, and so on