About MVR
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Newbie seeking help: Regarding the location of the vacuum pump inlet connection for MVR evaporators, our company has two MVR evaporation systems, and the wiring methods for these two systems are different. One system is connected directly to the preheater, while the other is connected to the steam-water separation tank (at the outlet of the secondary steam from the preheater). What are the principles behind each of these connection methods, and what are their advantages and disadvantages?
Aren’t they all the same? Could it be illustrated?
One is flash evaporation, and the other is evaporation? No images.
Preheater? It refers to the heater, I guess. Wei Zongsheng from the Eighth Research Institute has discussed in detail the location for discharging non-condensable gases; you can find it online
The function of a vacuum pump is to control the evaporation pressure. Non-condensable gases are generally discharged on the high-pressure side; if the pressure is below atmospheric level, it also needs to be pumped out using a vacuum pump, and this requires careful consideration. Don’t be so careless and neglect one thing while focusing on another; otherwise you’ll end up in an embarrassing situation.
When asking such a question, it’s best to include images; otherwise, it’s impossible for others to answer!