What are different types of Evaporators

Evaporators are used as a converter of liquids into gaseous form via the transfer of heat. All the basic evaporators have a mechanism to separate liquid and vapor. The process of evaporation is used for a variety of purposes in the chemical and process industry. There are different types of evaporators are used for different purposes. You need to know the difference between all kinds of evaporators so that you can buy accordingly. You can get the best evaporator suppliers in the USA.

Different types of evaporators you must know about are:-

• Rising Film Evaporator: It is a shell and tube-type heat exchanger. From the bottom of the tube, the liquid is fed into the evaporator that needs to be evaporated. The condensation of steam takes place on the outer surface of the vertical tubes and the liquid in the evaporator boils up into vapor. Then the produced vapor presses the liquid against the tube walls and causes the ascending force of this liquid. The center of the tube will have higher as more vapor is formed. It forces the remaining liquid against the tube wall which forms a thin film that moves upwards. Rising film evaporators are used in a wide range of applications like effluent treatment, production of polymers, food production, pharmaceuticals, and many more.
  
  

• Falling Film Evaporator: It is a special type of heat exchanger industrial device used to concentrate solutions. It is used especially for heat-sensitive components. It is the most usable evaporator because of its simplicity of operation, low-temperature difference, and high heat transfer coefficients. In this, the liquid enters from the top of the shell and tube exchanger. And vapors are generated in the heating tubes. The liquid and vapors flow co-currently in a downward direction. The separator is situated at the lower end of the heat exchanger, and the vapor and the liquid are then carried over to that separator.
  
  

• Agitated Thin Film: It consists of jacketed shells and high-speed rotors. Working principles involve the feed entering the evaporator from the top. Then the feed is agitated and spread out into a thin film on the walls of the shell by the spinning rotor. The liquid is distributed on the heated wall in the form of a thin film. It is also called the wiped film evaporator because the rotor wipes the fluid from the walls. This evaporator is mostly used for fluids with high sensitivity and viscosity. This evaporator is aided by turbulent flows.
  
  
• Multi-effect Evaporator: This evaporator is used in the process of multi-effect evaporator operation. Water vapor discharged from one effect is used as the heating medium for the next effect which has a lower boiling point. These evaporators are used for concentrating aqueous fluids. It also enables businesses to obtain the product at the lowest temperature. Evaporators may be built with an arbitrarily large number of stages. Evaporators that have more than four stages are rarely practiced.
  
  
• Self-cleaning Evaporator: The operating principle of this evaporator is based on the circulation of solid cleaning particles through the tubes of vertical shells and tube heat exchangers. Through the tube bundle of the heat exchanger, the fouling liquid flows upward and incorporates specially designed inlet and outlet channels. Uniform division of particles overall the tubes is ensured by the proprietary distribution system. Mild scouring effects are created on the heat exchanger tube walls by the upward flow of fluidized particles. The evaporator and condenser work differently.

We discussed above different types of evaporators that are used for different purposes. Alaqua Machinery provides different types of evaporators in the USA at a reasonable price. All the equipment of Alaqua is of good quality and we ensure timely delivery of all products.