What is agitated film evaporator?
Agitated thin film evaporators are typically used for fluids which are difficult to handle due to higher sensitivity and viscosity. Such an evaporator consists of tow key components: a jacketed shell and a rotor which rotates at high speed inside the shell. The feed is inserted into the mechanism at the top.
What is the main advantage of agitated film evaporator?
Advantages of an agitated thin-film evaporator are: Short residence time in the heated zone, measured in seconds to minutes. High heat-transfer coefficients due to the turbulence imparted by the rotor. Plug flow with minimum back-mixing.
What are the types of evaporator?
Type of Evaporators
- Climbing Film Evaporator.
- Short-tube Vertical Evaporator.
- Basket-type Evaporator.
- Long-tube Vertical Evaporator.
- Plate Evaporators.
- Horizontal Tube Shell-Side Evaporator.
Which is the simplest type of evaporator?
Batch pan evaporators are the simplest and oldest. They consist of spherical shaped, steam jacketed vessels. The heat transfer per unit volume is small requiring long residence times.
What is a falling film evaporator used for?
A falling film evaporator (FFE) is a specific type of vertically oriented shell and tube (S) heat exchanger that is used to separate two or more substances with different boiling point temperatures.
What is a natural circulation evaporator?
Natural circulation in an evaporator is caused by the thermal difference between the heating medium and the liquid. The mixture of vapor and liquid merges from the tubes and enters the upper chamber from which it passes through a short connection into the vapor separator.
When to use an Agitated thin film evaporator?
The Agitated Thin Film Evaporator is commonly used in the food industry, pharmaceutical industry, light industry, environmental protection industry, petrochemical industry, and many more. Thin & Wiped Film Evaporator – Process, Features and Benefits.
Which is the best technology for film evaporation?
Our thin or wiped film evaporator is the ideal apparatus for you, if you need a con- tinuous processing of your heat-sensitive, viscous and fouling products. It consists
Where does the vapor flow in a film evaporator?
The resulting vapor normally flows cocurrently with the liquid, in the centre of the tubes. A full evaporation stage consists of the falling film evaporator itself including the feed distribution system, a separator to separate the vapors from the residual liq- uid, and a condenser.
What kind of evaporators are used in industrial applications?
Industrial applications: These are the same as for short-tube evaporators. Basket types can also be used when the liquor may result in scale. Long-tube vertical evaporators — The three types of long-tube vertical evaporators are the most popular evaporators used today.