Design issues of the drain pipe for vertical storage tanks
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The vertical storage tank has a constant-pressure arch roof, has a capacity of 500 m3, is made of carbon steel, and holds xylene as its contents. This drain pipe (used for drainage; another discharge pipe is located on the side at a height of about 500 mm from the bottom) is installed at the bottom, with a small stainless steel tank welded to that area as well. The cap slab also requires holes to be drilled – is this design reasonable? Can the tank drain pipe be welded directly to the very bottom of the side of the tank? In this way, there is no need to drill holes in the foundation pad. Or how is it better to design?
The tank drainage I’ve seen is all at the bottom on the side; I haven’t seen much of it though.
Personally, I think both bottom discharge and discharge at the lowest point on the side are viable; it’s reasonable to choose the option that suits the actual circumstances.
This setting makes quite a bit of sense. The structure is based on a conical-bottom oil collection pit. The advantage is that it is discharged at the very bottom of the tank. There is no need for staff to go in for maintenance and cleaning either. After all, xylene is a carcinogen; reducing manual handling ensures safety. If the discharge is at the bottom side, regular cleaning is required; it’s carcinogenic, and even mild inhalation can cause unconsciousness. Who would dare to go in, right?
This post was last edited by caojj299 on 2021-6-16 17:21. It is toxic and flammable/explosive. I got it wrong; and having dealt with it for a long time, I often didn’t pay much attention to protection, thinking it was non-toxic
Is xylene non-toxic? Carcinogens, man! One of the three substances in conventional VOC treatment. Indoor pollution: key monitoring values. When the little mouse eats a bit, it immediately kicks its legs. If a girl smells it, her menstrual cycle gets disrupted. Of course, the amount is small and will not be fatal to a person. At most, schizophrenia – the advantage is that killing people isn’t considered a crime anymore!
This senior high school student is right! It’s wrong for the original poster to claim that xylene is non-toxic.
This post was last edited by caojj299 on 2021-6-16 at 17:23. I made a mistake; after being exposed to it for a long time, I didn’t pay much attention to taking protective measures, and I even got used to its smell. Sigh. . . But I thought \"toxic\" referred to high toxicity, like TDI and things like that.
For vertical storage tanks with a conical bottom, the design of the bearing platform becomes more complex. Or use a steel structure base and place it on a concrete cap? :L is located right in the center of the bottom of the tank; it seems very difficult to work there.
The pot in the original post seems to have a flat bottom plus an oil collection pit, just my personal opinion.