Reasons for large fluctuations in the outlet pressure of a plunger pump
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The new urea plant is equipped with a new plunger pump; the medium used is methamine solution. During each test run, water is used first for testing, followed by the use of the actual medium. This process was repeated many times, and in each case there was a fluctuation in pressure ranging from 5 to 20 MP. Every time the combined valve was assembled or disassembled, leaks were tested for; new sealing rings were used, and the sealing surfaces of the check valves were in good condition. The issue lies in the large pressure fluctuations. I seek guidance from the experts here.
Then why are the other 3 of the 4 pumps working fine, while this one doesn’t?
Are these four pumps connected in parallel to one device?
The operation of the equipment is conditional on a constant adjustment range; however, pressure fluctuations are significant once the equipment starts running. What pressure do you need? The reason I analyzed is that the lubricating oil seal in the plunger system cannot withstand high pressures. Another issue is that the components deform during operation. It would be best to have short videos during runtime.
Four pumps form an inlet pipeline.
When testing a single unit, is it only this one that shows large fluctuations?
I know that; it’s a new device, but it’s not listed in the design drawings