The pressure of the secondary steam entering the second effect due to evaporation is too high
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Today, during operation of the evaporator, the secondary steam pressure as it moved from the first effect to the second effect remained abnormally high. After opening the drain valve on the condensate tank on site, a large amount of water vapor was released； May I ask what causes the excessive pressure of secondary steam? ? ? ?
Is it falling-film evaporation? It could be a leak in the first-effect evaporator or a detached distribution cap on the second-effect evaporator.
What other reasons are there for three-effect falling-film evaporation?
There are many reasons; was the non-condensable gas measured? What is the vacuum level for the three-effect system, and what is it for the two-effect system?
The most likely reason is that heat transfer in the secondary heat exchanger is insufficient; as a result, the secondary steam cannot be converted into condensate, which leads to an increase in pressure. Insufficient circulation volume, as well as problems with the condenser or the operation of the tertiary stage, could also be the causes