Evaporador al vacío. Advantage
Industrial evaporators by vacuum evaporation.
Efficiently and definitively minimize the amount of waste to be managed, concentrating the polluting solid as much as possible and reusing the water once it has been distilled.
SPECIFICATIONS
- Wastewater treatment unit
- low power consumption
- Virtually zero maintenance.
- Small size, minimum occupied surface
- Possibility of using the evaporated water for various uses.
VACUUM DRY evaporators:
It completely dries the solid residue resulting from the separation of the water.
Evaporators VACUUM VNT:
Fully automated process.
PERFORMANCE
DRY VACUUM EVAPORATOR: 150, 250, 350, 500 or 1000 Ltrs./24 hrs.
VNT EMPTY EVAPORATOR (vertical): 100, 250, 350, 500 or 1000 Ltrs./24 hrs.
Efficiently and definitively minimize the amount of waste to be managed, concentrating the polluting solid as much as possible and reusing the water once it has been distilled.
The first Spanish newspaper to use vacuum evaporation technology to treat and recycle the water generated by its presses and workshops.
Vacuum evaporation to improve thermodynamic performance.
Including vacuum conditions in the boiler of evaporation-based waste treatment systems allows the thermodynamic performance of the process to be increased. In simpler language we could say that evaporation is greater when the pressure is lower, so less heat needs to be applied and energy is saved.The boiling temperature of a liquid depends, in addition to its chemical composition, on the pressure to which it is subjected. If the evaporator boiler works under vacuum conditions -low pressure- the boiling temperature of the liquid waste to be treated decreases.
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| Caldera abierta Mayor temperatura de ebullición Más consumo de energía para evaporar el residuo líquido a tratar. | Caldera trabajando en vacío Menor temperatura de ebullición Con menos energía se consigue la misma evaporación. |
A simple example to illustrate this phenomenon is that of the boiling temperature of water as a function of height above sea level. Thus, the temperature at which water boils at sea level is approximately 100 ºC. On the other hand, at a height of 2,000 m, 94.3 ºC is enough; Everest reaches almost 9,000 m and water boils at 68 ºC.
By evaporating under vacuum and reducing the boiling temperature of the liquid to be treated, the amount of heat to be added/removed in the boiling and condensation process is reduced to the same extent, with the consequent energy savings.
The concentration of large volumes of discharge solution in industries involves a significant consumption of thermal energy in the recovery of wastewater generated in its processes.
To minimize energy consumption, the evaporators DRY y VNT they incorporate a heat pump and keep the boiling boiler under vacuum, reaching an absolute pressure in the boiler equal to ≈ 33 mbar. Under these pressure conditions, the water present in the solution to be concentrated evaporates at very low temperatures (≈ 35 °C).
In distillation processes, the reduction of the boiling point of the liquid also allows, among other advantages, to distill liquids with a high boiling point and to avoid the decomposition of temperature-sensitive substances. Some of these substances may have value and their recovery without degradation is important. Industrial evaporators with a vacuum pump allow these valuable substances to be recovered with significant energy savings.
