Dear managers, I have a question: regarding the liquid level and pressure balance in the fractionation tower during water-cooled transportation, the feed rate is shown as 20 t/h while the output rate is shown as 29 t/h. With a material balance discrepancy of 9 t, is this normal? They are all orifice plate flow meters
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Dear managers, I have a question: regarding the liquid level and pressure balance in the fractionation tower during water-cooled transportation, the feed rate is shown as 20 t/h while the output rate is shown as 29 t/h. With a material balance discrepancy of 9 t, is this normal? They are all orifice plate flow meters
As long as there are no losses along the way, in theory, whatever is invested should be the same amount that is withdrawn; a difference of this kind seems problematic to me.
Orifice plate flow meters don’t have such large errors; check whether the set range matches, 13193756695
The flow meter may have errors; in addition, the temperature of the material should also be taken into account, as temperature has a significant impact on flow rate. In addition to monitoring the flow rate of materials in and out, attention should also be paid to the liquid levels inside the tower and in the reflux tank; as long as these levels remain constant, material conservation is maintained.
The feed density and the discharge density in far design are different; the mass flow rate of an orifice plate flow meter is calculated based on the volume flow rate. Convert both to volume and check if the volumes are similar; if so, it indicates that there is no problem with the orifice plate flow meter
Shouldn’t it be in balance under normal conditions? In as much as out as much. . . .
This is definitely related to the parameter settings of the flow meter; the density and pressure when the material is flowing are different from those when water is flowing, so deviations will certainly occur. As for whether this is normal or not, it’s hard to say!
Is it in the water-cooled operation mode, with the same medium density, temperature, and pressure as designed? If the parameters differ from those of the medium being measured, it is normal; the values displayed by the flow meter do not represent the actual values. The parameters of the raw material and the medium being extracted should be different, so it is possible to check the technical specifications and compare them
If the volumes of entry and exit are different, is the mass the same? ?