Chemical plant piping issues
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Explanation: The drainage pipe of the equipment is at a height of 40 above the platform (DN15), while the main drainage pipe is at a height of 232 above the platform (DN25). The DN15 pipe connects to another device; how should the piping be connected so that water can be drained and no water remains in the DN15 pipe? Please ask
A collection tank is added at the end of the device’s drainage pipe (DN15), and then the liquid is pumped into the pipeline (DN25).
A drainage tank is added at the end of the device’s drain pipe (DN15); a certain liquid level in this tank allows gas to be used to drive the water into the main pipe (DN25).
As mentioned above, it is necessary to add collection facilities as well as external conveying power
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The pressure for DN15 should be higher than that of DN25; DN15 is connected to the DN25 pipeline from above, and a drain valve should be installed at the lowest point of DN15
Draw a diagram to see how to solve this problem
Yes, your method is good – simple and straightforward