Temperature at the bottom of the urea low-pressure drum
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There are two low-pressure steam drums for urea; the temperature difference at the bottom is around 6°C, with a pressure of 0.38 MPa. One of them has a temperature of 146.9, while the other has a temperature of 140.7. The temperatures should be the same – what’s going on?
Check if the locations of the temperature measurement points are the same If it’s the same, check whether the location where water is added has an impact on the temperature level!
Could it be that the thermometer is showing a lower reading? It should be 146.9°C, right?
This post was last edited by *aod1223 on 2017-4-19 at 17:16. The saturated steam temperature corresponding to 0.38 MPa is 143°C; 146.9 seems a bit high – it should be verified
The 0.38 MPa mentioned by the poster is likely gauge pressure. You are saying that the corresponding value for saturated steam at an absolute pressure of 0.38 MPa is 143℃
There are many influencing factors: whether the thermometer is accurate, whether the pressures in the two chambers are equal, whether the amount of water added is consistent, the impact of the 80VC valve, and so on. These need to be ruled out one by one··························