EVP Multi-effects Evaporator
EVP Multi-effects Evaporator is operating under the vacuum and low temperature, it saves energy by utilizing the steam repeatedly. The condensing heat can also be recovered if the vapor from the front effect is compressed to higher pressure. The saturated steam temperature corresponding to the pressure is also higher and the vapor can be reused for heating. Steam jet vapor compressor is used under this principle.
The jet compressor is operated at a very high velocity and has no movable parts. The structure is simple and the operation reliable.
Every effect of falling-film evaporator has an upper distribution system. The liquid flows downwards in each tube uniformly, forming a cylindrical hollow thin liquid layer, the vapors flow axially downwards.
The concentrated product is separated from the vapors in two steps, firstly to the lower end by gravity, and secondly by a high efficient cyclone separator. The clean vapors are then used to heat the next effect, or condensed (last effect).