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Seeking help: In an open-circuit cooling water circulation system, a Y-type water filter has been installed at the user’s inlet, with one filter in use and another as a backup. The pressure drop across the filter after circulation reaches 1.5 bar! The pressure loss remains unchanged after cleaning the filter screen; even after removing the screen, the pressure loss is still 1 bar! The flow rate is 2.3 m/s.
Isn’t that ridiculous? Go with the basket-swapping type……
How are the pipes installed at the user’s location, and what is their diameter? The information is incomplete, so it’s difficult to rule out other possibilities. The poster is new to the chemical industry, right? It’s important to develop good habits of scientifically identifying problems, investigating them, and solving them. It’s beneficial for both work and life.
The resistance of the filter screen is indeed a bit high; what’s the mesh size? The resistance in the recirculating water pipes and equipment system is a bit too high; it’s necessary to disassemble them and check for any blockages in the water flow.
There must be a problem with the pipeline itself; although the flow rate is a bit high, it shouldn’t reach 1 bar. Additionally, the pressure drop across this filter seems to be too high as well.
First, ensure that the valve is in proper condition; second, consider the size of the filter. For a Y-type filter, if the pipeline has a DN50 diameter, at least a DN100 Y-type filter should be used, and a basket-type filter with the same diameter will suffice
Go take a photo and let the experts take a look at it for you
Is the pressure difference measured by you correct? I suspect there might be an issue with the measurement, or perhaps the inner diameter of the filter is too small
The filter screens are too dense; the pressure loss is so high