Single-line diagram shading recognition
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Is the formation of the shadow in the single-line diagram the projection of the pipeline onto the direction line? If so, why isn’t the shadow triangle a right angle based on the numerical values?
As shown in Figure 404, 404, 589 is not a right triangle
You should be able to understand it by referring to the pipeline layout plan
Measure and identify by moving Xx distance in a certain direction
What kind of look is that? It’s 569, not 589. Additionally, the gasket thickness of 2 mm must be taken into account. (404^2*2)^0.5=571.34; 571 is taken as the result ； Or (((569+2)^2/2))^0.5=403.76, so 404 is taken.
This post was last edited by Suspected law-abiding citizen on 2019-4-8 at 11:35. The xyz axes of this line graph need to be included, and the baseline directions for xyz must be set correctly in order to be able to view the graph. It should be a horizontal inclined pipe that bends at 45 degrees, but the drawing style used here for single-line diagrams isn’t very good. Our usual approach is to have the boundary lines marking the length of all horizontal pipes run vertically, so that those who read the diagram can quickly identify one axis and thus determine the other directions as well
Since it’s a 45° elbow? Why is the direction on the single-line diagram still due north? If going straight up is correct, then at 45° one shouldn’t mark it as due north; instead, an angle should be indicated!
The shadows in a single-line diagram are definitely right angles; however, for certain dimensions, you need to consider where they are marked. In the case of flanges, the thickness of the gaskets must also be taken into account.
It looks awkward just looking at it; it’s so much more convenient to simply include the coordinate system