Main use:
Widely used in chemical industry, light industry, such as water or organic phase solution evaporation concentration. Especially suitable for evaporation and crystallization or scaling material at atmospheric pressure or vacuum conditions continuously or intermittently, single effect or multi effect evaporation.
Working principle：
Forced circulation evaporator is to rely on the external force of the liquid circulation pump. The heating chamber is provided with two kinds of horizontal and vertical structures. According to the different circulation liquid separation chamber of import and export position, it can be divided into positive circulation forced evaporator and reverse circulation forced circulation evaporator, liquid inlet position in the export position of the upper part is called a cycle, whereas for the reverse cycle. Reverse circulation forced evaporator has more advantages.
The liquid circulation velocity in pipe heating usually 1.2~3.0 M / s range (when more grain suspension of the tube used in low hardness, liquid viscosity, low heating value), tube can be vertical, horizontal and vertical two-way one-way one-way and two-way horizontal, after two small but high equipment the tube is not easy to clean and easy to wear wall.
The head of the circulating pump to match the resistance of the circulatory system, the general flow is low. As the solution temperature close to the boiling point in the pump selection should pay attention to cavitation problem.
Characteristic：
Has the advantages of high heat transfer coefficient, anti salt, anti scaling, strong adaptability, easy cleaning;
Disadvantages: solution stay long; cost and maintenance costs slightly higher