Find pipe diameter
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At a distance of 15,000 meters, with 3 pumps having a flow rate of 400 cubic meters per hour and a head of 70 meters, 23,700 cubic meters of water are transported per day. What diameter pipeline is required to meet this demand? What diameter pipe is needed if two are used?
It should be at least DN500 or higher, with no vertical height difference
This post was last edited by CHANGBAISHI on 2019-8-6 at 17:39. Alas, this is something handled by design institutes; even if I give you an answer here, you wouldn’t dare to use it. This also includes things such as underground installation, pipe racks, and passageways, and a whole range of other elements. If you want to play, just get a copy of \"Principles of Chemical Engineering\" and take a look – that will help you understand. It’s not difficult; one with a middle school level of physics knowledge can understand it.
Let us handle the design of large-diameter pipes; we can provide you with the calculation methods and results. It’s very risky to try to do it on your own, as any deficiencies will make subsequent corrections quite troublesome.
The principles of chemical engineering are also a science, and they are somewhat challenging; according to what you say, it’s possible to start teaching them in junior high school.
The third floor means that one can solve this problem with a middle school level of physics knowledge.
There is no specified working hours – whether it’s 8 hours or 24 hours. There is no defined transportation route; a rough estimate is over 600
The maximum flow rate of this pipeline is 1200 m3/h when all 3 units are operating simultaneously; what is the pressure at the end point after 15 kilometers, H0? Also, what is the height difference H1 between the highest point along the 15-kilometer distance (and the location of that highest point) and the water level at the pump inlet? 1. The pump head H (70 m) must be greater than the head difference H1, plus the allowable pressure drop in straight sections and local pressure drops (due to elbows and valves) dH, plus the head at the end point H0, plus a safety margin; the pipe diameter is calculated based on the values of the allowable pressure drops in straight sections and local pressure drops ； 2. The sum of the cross-sections of the two is slightly larger than that of a single one; verify this.
DN600, without considering back pressure, head difference, or local resistance.