No temperature difference on the water side of the plate heat exchanger
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The inlet and outlet temperatures on the water side of the plate heat exchanger are both 23.5°C, while the inlet temperature on the acid side is 38°C and the outlet temperature is 31°C. What could be the reason for this? I’d like to ask everyone for advice! !
The flow rate on the water side is relatively high, so there should still be a temperature difference; it might just be small
Where does the temperature difference on the acid side come from? Is it not evident on the water side either?
Are the temperature test data a bit off?
No? Both the on-site readings and the instruments indicate that the temperature difference is no more than 1 degree
What are the flow rates on the water side and the acid side?
I haven’t done the calculations yet; for imported DN200 pipes, the pressure on the water side is 0.34 MPa and on the acid side it is 0.2 MPa. With two plate exchangers connected in parallel, when one of them is operating normally, the temperature difference between the acid and water sides is between 8-10℃
What is the room temperature? Are the heat exchanger and pipelines insulated?
Additionally, the on-site instruments need to be calibrated and verified. You can first use an infrared thermometer to check the pipes that lack insulation
“What does “field and instruments” mean?