Is it allowed not to provide a drainage slope for the steam pipes outside the plant?
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Some people say that a drainage slope is not necessary for steam pipes outside the plant; I’m not sure what the basis for this is. The reason given is that the pipes outside the plant are quite long – for example, a 200-meter-long horizontal pipe with a slope of 0.003 results in a height difference of 0.6 meters. Is that really the reason? I don’t think it’s difficult at all; the reasons seem insufficient.
For pipelines outside the plant, compensation is required over distances of forty to fifty meters; one compensator can be used to create a slope, and the slope can be adjusted using pipe supports – there’s no problem with that
I’m sorry to ask, but when you say “adjusting the slope using pipe supports,” do you mean adding shims or steel sections under the pipe supports? Just reducing the height of the T-shaped pipe support shouldn’t be enough, right?
Steel pipes or shaped steel must definitely be added to adjust the height
That’s what I mean too; there’s no difficulty in it. In fact, the lack of a hydrophobic slope could have many negative effects on operation.
In external pipeline systems, there’s no way that a compensation unit is installed every forty or fifty meters; otherwise the pressure drop would be extremely high. Normally, rotary compensators are used, with 200–300 units per set for compensation; of course, this applies differently to small sections. As for the slope, if you set it correctly, it’s absolutely right. It’s fine to not have one; there is no impact on safety. But the ease of design and convenience of installation are very great advantages.
Common compensators for pipes outside chemical plants? Can natural compensation not work? Add a few more bends
The pressure drop is too high and cannot meet the process requirements. Also, the door style along the whole way is really ugly.
The voltage drop is a real issue; aesthetics may not matter, but the voltage drop cannot be ignored.
The purpose of the slope is to prevent soda from flowing back. It facilitates the collection of condensate water. Avoid water hammer. In practical applications, it is sufficient to ensure timely drainage (every 50 meters), install water collection tanks, use the right drain valves, maintain good insulation, allow for appropriate expansion, and it is not necessary to have a slope.