The MVR has a high vacuum level and low evaporation rate; what should I do?
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The process design calls for a pressure of 40 kPa and a temperature of over 80 degrees for the material; however, with the vacuum pump running continuously, the system pressure gradually drops below 20 kPa, and the material temperature falls below 60 degrees
The process design calls for a pressure of 40 kPa and a temperature of over 80 degrees for the material; however, with the vacuum pump running continuously, the system pressure gradually drops below 20 kPa, and the material temperature falls below 60 degrees； At the same evaporation area, a lower pressure corresponds to a lower evaporation temperature; there should be no theoretical problem with this. The evaporation rate is low; the evaporation area must be insufficient.
With low air pressure and low temperatures, evaporation will definitely be low; raise the temperature and repair the vacuum pump control system.
With a larger displacement, control the exhaust and the supply of steam.
Vacuum level and evaporation temperature are directly related to each other; if the evaporation temperature is low, there is less secondary steam, and as a result, the amount of material that evaporates is also reduced. .
It’s already like this right after it started, or has it been running for some time? Has the boiling point changed?
The boiling point is incorrect; the heat exchange area is too small. If the boiling point were higher, this issue wouldn’t occur when the device is turned on! Is it also possible that there is an excessive amount of gases with low boiling points, which get entangled in the steam? Such gases do not have the ability to facilitate heat exchange! When looking for manufacturers, their quality is not up to standard! Why not come to Orson!
Is the vacuum level high? Is this after the normal evaporation compressor has started up? Will it keep dropping? There’s no theory behind it
There is a problem with the vacuum system; pressure and leak checks have been performed, and the compressor is not operating at full load