What is the principle of an evaporation tank?
2 Answers
The principle of an evaporation tank is to use the evaporation method to heat a solution, causing part of the solvent to vaporize and be removed, thereby increasing the concentration of the solution, i.e., the process of concentrating the solution. The equipment used for evaporation operations is called an evaporator. Since most of the solutions being evaporated are aqueous, the evaporation process involves using steam as a heating agent to generate steam. The evaporation tank mainly consists of two parts: a heating chamber and an evaporation chamber. The heating chamber provides the heat required for evaporation, promoting the boiling and vaporization of the liquid. The steam generated in the heating chamber contains a large amount of liquid foam. When it enters the larger space of the evaporation chamber, the liquid is separated from the steam through self-coagulation or the action of a defoamer.
I often drive my family out for fun, and the principle of the evaporator is crucial in car air conditioning. Simply put, the refrigerant enters from the expansion valve, the pressure drops sharply, and the liquid turns into gas. This process absorbs a lot of heat, just like sweat evaporating and taking away heat. The air is blown by a fan over the surface of the evaporator, and the heat is absorbed by the refrigerant, making the air cooler. This part of the device is usually hidden under the dashboard inside the car, and the material is aluminum piping to increase heat exchange efficiency. The refrigerant is a specific chemical substance like R134a, which is safe and environmentally friendly. The entire system relies on the compressor to cycle and work. If the refrigerant is insufficient or the evaporator is dirty, the cooling effect is greatly reduced. When driving, the air conditioning works normally, and you won't suffer from fatigue in the summer, so understanding the principle of this small box helps in identifying faults.
