China Suppliers Factory for External Heating Triple Effect Vacuum Evaporator – Efficient Liquid Evaporation Solution
Introduction to Three Effect Evaporator
Composition of Three Effect Evaporator
Working Principle of Three Effect Evaporator
The material that needs to be evaporated enters the first effect heater for heating through the feed pump, then enters the evaporation chamber for evaporation. Gas liquid separation is carried out in the separator, and the solution flows into the suction port of the circulation pump from the bottom of the separator. The circulation pump is used to send it to the heater and separator for circulation and evaporation. The evaporated steam enters the condenser and is fully condensed.
In the evaporative heat exchange chamber, external steam liquefaction generates latent heat of vaporization, which heats the wastewater. Due to the high pressure in the evaporative heat exchange chamber, the material is heated to overheating at a pressure higher than the normal boiling point of the liquid in the evaporative heat exchange chamber. After the heated liquid enters the crystallization evaporation chamber, the pressure of the material rapidly decreases, causing some aqueous solutions of the material to flash or boil.
The steam from the evaporated wastewater enters the secondary evaporator as a power evaporator for heating, while the unexpired wastewater and salt are temporarily stored in the crystallization evaporation chamber. The first effect, second effect, and third effect evaporators are connected through a balance tube. Under negative pressure, high salinity wastewater or materials flow sequentially from the first effect to the second and third effects. The wastewater is continuously evaporated, and the salt concentration in the wastewater increases. When the salt content in the wastewater exceeds the saturation state, the salt in the water will continuously precipitate and enter the lower salt collection chamber of the evaporation crystallization chamber. The entire process repeats, achieving salt water separation.
The condenser is connected to a vacuum system, which extracts the uncondensed gas generated in the evaporation system, keeping the condenser and evaporator in a negative pressure state and improving the evaporation efficiency of the evaporation system. Under negative pressure, the secondary steam generated by the wastewater in the three effect evaporator automatically enters the condenser. Under the cooling of the circulating cooling water, the secondary steam generated by the wastewater material quickly transforms into condensate. The condensate can be continuously discharged and recycled to the reuse water tank.
Characteristics of Three Effect Evaporator
Using evaporated steam as energy to reduce equipment consumption.
Not only does it have strong evaporation ability, but it also has a fast water output speed.
Setting a swirl plate inside the evaporator can improve the heat transfer coefficient of the system and reduce the occurrence of blockage and scaling.
Frequently Asked Questions (FAQ)
It operates by connecting three evaporators in series. The secondary steam generated from the preceding effect is used as the heating medium for the subsequent effect, which runs at a lower pressure and boiling point. This sequential reuse of steam minimizes overall energy consumption.
The complete system consists of three sets of evaporators connected in series, condensers, salt separators, and replication equipment that work together to process the materials.
Under negative pressure, the wastewater flows through the three effects, increasing in salt concentration. Once the salt exceeds saturation, it precipitates and settles into the lower salt collection chamber of the crystallization chamber, completing the salt-water separation.
Negative pressure, maintained by a vacuum system connected to the condenser, lowers the boiling point of the liquid in the system. This allows secondary steam to flow automatically into the condenser and improves the overall evaporation efficiency.
By installing a swirl plate inside the evaporator, the system improves its heat transfer coefficient and maintains optimal fluid dynamics, which significantly reduces the occurrence of blockage and scaling.