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Why do experts say it’s necessary to install a water seal tank before an exhaust gas scrubber?

2023-04-22View Original

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Experts suggest that, given the significant fluctuations in the concentration of incoming exhaust gas—with the maximum concentration far exceeding the average concentration—should a water seal tank be installed before the gas enters the scrubber tower? Why is this? What’s the basis for that?
Reply #22023-04-22
Experts recommend installing a water seal tank before the exhaust gas enters the scrubber tower, in order to prevent any impurities and liquid substances that may be present in the exhaust gas from directly entering the scrubber tower and affecting its scrubbing efficiency. The water seal tank serves as a separator and filter, removing impurities and liquid substances from the exhaust gas, thereby preventing them from having any adverse effects on the scrubber tower. Additionally, large fluctuations in the concentration within the exhaust gas can also increase the water impact force; installing a water seal tank can reduce this impact force. These bases mainly stem from practical experience and previous research findings. .
Reply #32023-04-23
1. The water in the water seal tank serves to absorb and desorb substances, thereby stabilizing the concentration of exhaust gases. 2. The water seal serves to prevent backfire.
Reply #42023-04-23
The function of a liquid seal tank is to provide isolation and shutoff; it is widely used in gas systems. Can it help improve the efficiency of the absorption tower? I racked my brains and came up to the idea of a water pipe; at least it brings me some peace of mind! :Lol, previously, someone installed a liquid seal tank at the gas user end and measured the H2S content at both the inlet and outlet; the values were almost identical. There was also a guy who added a liquid seal tank to the gas pipeline in front of the absorption chiller. He claimed that it could automatically balance the pressure while desulfurizing, and he even intended to apply for a patent. This fooled many of his colleagues. ;P After the OP finishes the installation, wait for you to post back and see the results. :)
Reply #52023-04-23
The main purpose of a water seal tank should be to prevent flashback. If the transfer pipe contains a significant amount of liquid, it also serves as a liquid separator.
Reply #62023-09-11
It can have a certain absorbing effect. Equivalent to a theoretical plate

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