Will an oversized separator chamber in the evaporator affect the evaporation rate?
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We have a project to renovate an old evaporation unit; the original separation chamber had a diameter of over 4 meters and a height of 8 meters； And the diameter of the separation chamber we need is less than 2 meters, with a height of around 5 meters; so can the existing separation chamber still be used? ； If the original separation chamber is used, will it affect the evaporation process? For example, what if the evaporation rate is too fast, resulting in insufficient heat supply? I need a solution.
The volume of the circulating liquid has increased, resulting in an extended initial concentration endpoint! The others should remain unaffected!
Thank you for your reply. I see that this evaporator was designed to handle an evaporation rate of 5 t/h, while the current design calls for a rate of 2.2 t/h. If we use the original separation chamber, will this cause the evaporation to occur too quickly?
Whether it’s fast or not depends on the heat exchange efficiency, steam quality, and vacuum level in the evaporation chamber. Evaporation method?
In other words, I simply enlarged the separation chamber, but the heat supplied remained unchanged; the heat exchange efficiency and vacuum level also stayed the same, so the evaporation rate wouldn’t increase, right?
Look at the separation principle. If separation is achieved through velocity, the larger the path length, the lower the velocity, and the better the separation effect should be ； If separation is achieved through impact, then a low speed is not conducive to separation. As for the effect of separation on heat transfer, I’ve never heard of it.
Simply increasing the separation chamber while keeping the heat input unchanged, with the heat exchange efficiency and vacuum level remaining constant, will not result in an increase in the evaporation rate. The advantage of a large separator volume is that the purity of the secondary steam can be improved.
It does not affect the evaporation process, but the startup time of your vehicle will be longer