Question: \"Bias flow\" in the packed tower and \"collapse\" in the regeneration tank”
Thread Content
I would like to ask, in actual production operations: 1. How can one determine whether there is gas bias flow inside a packed tower? How to determine whether the internal components of the tower have collapsed? 2. How to determine whether the gas distribution plate in the injection oxidation regeneration tank of the desulfurization section has collapsed? (When the desulfurization efficiency declines, it’s too late to take action one by one; it would be better to take preventive measures earlier.) I hope friends can help answer these questions. Please point out any unreasonable aspects in my queries. Thank you!
There is a simple way to determine whether there is flow deviation in a packed tower: open the manhole cover at the lower part of the tower (the skirt), start the lean liquid pump to feed the desulfurization liquid into the tower, and by observing whether the liquid remaining at the open manhole is distributed evenly, it is possible to tell if there is flow deviation. To determine whether the gas distribution plate in the regeneration tank has collapsed, a similar method can be used: by going to the upper part of the regeneration tank and checking through the observation port whether the bubbling at the top of the tank is uniform.
1. How to determine if there is gas bias flow in a packed tower? How to determine whether the internal components of the tower have collapsed? Basis for judgment: Changes in export indicators, typically manifested as an increase in these indicators or a loss of control over them
How to determine if there is gas bias flow in a packed tower? 1. The desulfurization efficiency decreases, with higher hydrogen sulfide levels at the outlet (with unchanged components of the desulfurization solution). 2. Liquid presence at the outlet of the desulfurization tower leads to increased resistance (with constant space velocity and liquid-to-gas ratio). 3. When shutting down production, start the lean liquid pump to feed the desulfurization liquid into the packing tower, and observe through the open manhole whether the flowing liquid is uniform. How to determine whether the internal components of the tower have collapsed? 1. When the injectors are evenly distributed, local liquid surface turbulence is significant. (The liquid feed pipe beneath the injector is not damaged.) 2. When the injectors are evenly distributed and there is no blockage, the overflow level is unstable and the bubbles are large. (The liquid feed tube under the injector is not damaged) :handshake :P
:lol Not bad, take notes
Hehe, the method from floor 2 is also the one we use:victory: