Advantages and disadvantages of upward and downward spraying by the acid distributor
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Let’s discuss the advantages and disadvantages of upward and downward spraying by the acid distributor
It’s better to spray downward, right? Spraying upward will definitely cause more corrosion to the pipes. No one wants to keep replacing the acid distributor pipes, after all
It seems you’re referring to a tubular acid distributor; spraying acid downward is better
The downward spraying method distributes the acid more evenly, but the downside is that the small holes can easily get blocked by fragments of the porcelain ring. The upward spraying method solves the problem of clogging by the porcelain ring, but its acid separation effect is not as good as that of downward spraying, and it tends to produce foam easily. So, it’s common to see more spraying downward.
In tubular acid separators, spraying downward is more common than spraying upward, as the main issue with upward spraying is the formation of foam.
I always feel that there’s a slight difference of opinion among everyone; this is just for reference. With the downward spraying method, the acid distribution isn’t as good as it is with upward spraying, but the advantage is that it’s less likely to get clogged by acidic sludge. With upward spraying, the acid distribution is better than with downward spraying, as it’s more even, but the downside is that it’s more prone to being blocked by acidic sludge. In short, both upward and downward spraying methods have their own advantages and disadvantages, but currently, the downward method is used more often than the upward one
Downward flow is problematic; it causes severe foaming and significant corrosion of the pipelines.
You must be referring to a tubular acid distributor: I agree with you – spraying upward ensures even distribution of the acid. If you’re concerned about excessive foaming, you can use some packing material.