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• 1.Falling film evaporator
  

Falling film evaporation is to add the feed liquid from the upper tube box of the heating chamber of the falling film evaporator, and evenly distribute it into each heat exchange tube through the liquid distribution and film forming device. Under the influence of gravity and vacuum induction and air flow, it forms a uniform film. Flow up to down. In the flow process, it is heated and vaporized by the shell-side heating medium, and the generated steam and the liquid phase enter the separation chamber of the evaporator together. after the steam and liquid are fully separated, the steam enters the condenser to condense (single-effect operation) or enters the next-effect evaporator as the heating medium to achieve multi-effect operation, and the liquid phase is discharged from the separation chamber.

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• Advantage:

Mild evaporation conditions, vacuum operation, fast evaporation rate, short stagnation time, large heat transfer coefficient;

High energy efficiency: Based on the theoretical minimum temperature difference, multi-effect, TVR or MVR evaporation can be designed.

Flexible operation;

Fully automatic control, unattended.

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• Application range:

The evaporation capacity can reach 150t / h, and the area is relatively small.
It is suitable for the concentration of materials required for heat sensitivity;
Suitable for processing and concentration of a small amount of solids;
It is suitable for the concentration of medium with moderate scaling tendency.

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• 2.Rising film evaporator

The rising film evaporator is composed of liquid that enters the heating tube for heating according to the principle of the siphon pump. After flowing into the separator, the liquid is separated from the steam and flows back to the evaporator through the circulation tube to form a closed circuit cycle. Therefore, this evaporator Also called external circulation evaporator.

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• Advantage:

Mild evaporation conditions, vacuum operation, fast evaporation rate, large heat transfer coefficient;
High energy efficiency:
Based on the theoretical minimum temperature difference, multi-effect, TVR or MVR evaporation can be designed.
Flexible operation;
Fully automatic control, unattended.

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• Application range:

The evaporation capacity can reach 150t / h, and the area is relatively small.
Suitable for processing and concentration of a small amount of solids;

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• 3.Rising-falling film evaporator

The material first enters the rising film heating tube. After boiling and evaporation, the vapor-liquid mixture rises to the top, then transfers to the other half of the heating tube, and then performs falling film evaporation. The concentrated liquid enters the vapor-liquid separator from the lower part. Elevated film evaporation photos.

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• Advantage: 
  

Mild evaporation conditions, vacuum operation, fast evaporation rate, short stagnation time, large heat transfer coefficient;  
High energy efficiency: Based on the theoretical minimum temperature difference, multi-effect, TVR or MVR evaporation can be designed.  
Flexible operation;  
Fully automatic control, unattended. 

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• Application range:

Evaporation capacity can reach 100t / h, occupying a relatively small area,
It is suitable for the concentration of materials required for heat sensitivity;
Suitable for processing and concentration of a small amount of solids;
It is suitable for the concentration of medium with moderate scaling tendency.

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• 4.Multipass evaporatior

Multi-pass evaporation is a thermal separation technology that uses external power to return the concentrated liquid to the second pass of the heater to continue heating and evaporation. It can be combined into 2-16 passes. It is an excellent method for gentle heat treatment of heat-sensitive and high-viscosity materials.

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• Advantage: 
  

Mild evaporation conditions, vacuum operation, fast evaporation rate, short stagnation time, large heat transfer coefficient;  
High energy efficiency: Based on the theoretical minimum temperature difference, multi-effect, TVR or MVR evaporation can be designed.  
Flexible operation;  
Fully automatic control, unattended. 

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• Application range:

The evaporation capacity can reach 80t / h, and the area is relatively small.
It is suitable for the concentration of medium with moderate scaling tendency.
It is suitable for the concentration of materials with high viscosity, high solid content, and heat sensitivity requirements in food, light industry, medicine and other industries.

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• 5.TVR evaporation device

Part of the secondary steam coming out of the separator is driven by high-pressure working steam, enters the ejector after mixing to raise the temperature and pressure, and then enters the heating chamber as heating steam to heat the feed liquid. The other part enters the condenser and is discharged after condensation. The heated steam condenses into water in the heating chamber and is discharged.

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• 6.MVR evaporation device

The principle of mechanical steam recompression (MVR) evaporation system is to use the secondary steam generated by high-efficiency steam compressor to compress and evaporate, convert electrical energy into heat energy, improve the enthalpy of the secondary steam, and the secondary steam of enhanced thermal energy is injected into the heater for heating, so as to achieve the purpose of recycling the existing thermal energy of the secondary steam and evaporating through the self-circulation of the evaporator.

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• 7.Forced circulation evaporation crystallizer

Forced circulation evaporation crystallizer A continuous slurry crystallizer. During operation, the feed liquid is added from the lower part of the circulation tube, mixed with the crystal slurry leaving the bottom of the crystallization chamber, and then pumped to the heating chamber. The crystal slurry heats up in the heating chamber, but does not evaporate. The hot crystal slurry boils after entering the crystallization chamber, so that the solution reaches a supersaturated state, so part of the solute is deposited on the surface of the suspended crystal grains, so that the crystal grows. The crystal slurry as a product is discharged from the upper part of the circulation pipe. The production capacity of the forced circulation evaporation crystallizer is large, but the particle size distribution of the product is wide.

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• Advantage:

The operation cycle is long, and the boiling / evaporation process is not performed on the heating surface but in the separator. Therefore, the phenomena caused by scaling and precipitation in the column tubes are minimized.  
Flexible operation;  
Fully automatic control, unattended. 

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• Application range:

The evaporation capacity can reach 800t / h.
It is suitable for the treatment of easily scaling and high viscosity media, and can be used as a high concentrator in a multi-effect evaporation device.
Suitable for use as a crystallization evaporator for salt solutions.

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• 8.Continuous evaporation crystallizer
  

It is mainly applicable to the evaporation and crystallization of crystal precipitated solutions. It is widely used in chemical industry, metal smelting, pickling waste liquid in large steel plants, and wet desulfurization waste liquid treatment in power plants.

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• Advantage: 
  

According to the characteristics of the material and the amount of evaporation, it can be designed as a single-effect or multi-effect evaporation unit.  
The unique design of the crystallizer can meet the technical requirements of continuous feeding and continuous discharge. The forced circulation of the evaporator forms the best fit. Its internal structure allows effective and rapid separation of crystals and clear liquid.  
The whole process is evaporation under vacuum conditions, the temperature is relatively low, the evaporation speed is fast, the evaporation energy consumption is low, and the evaporation concentration is high, so that the material liquid with higher viscosity is easy to flow and evaporate, and it is not easy to scale

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• Application range: 

The evaporation capacity can reach 800t / h.  
Crystal evaporator is widely used in the evaporation, concentration and waste liquid treatment of water or organic solvent solutions in medicine, food, chemical industry, light industry and other industries.

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• Process flow diagram
  

• TVR evaporation process flow chart	Flow chart of falling film evaporation device
  MVR evaporation process flow chart	Flow chart of falling film evaporation device
  Process diagram of forced circulation evaporation	Process diagram of forced circulation evaporation

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• Client case