Tubular Type Exchanger Forced Circulation MVR Evaporator

Tubular type exchanger forced circulation MVR evaporator equipment

MVR tubular falling film evaporator

Working principle and characteristics:

After preheating by the preheater, the material is added from the upper tube box of the heat exchanger. The material is distributed into each heat exchange tube through the liquid distributor, and a uniform liquid film is formed along the inner wall of the heat exchange tube. The liquid film in the tube is heated by the heating steam on the shell side during the downward flow process, boiling and evaporating while flowing downward. At the bottom of the heat exchange tube, the material becomes concentrated liquid and secondary steam. The concentrated liquid falls into the lower pipe box, and the secondary steam enters the gas-liquid separator. In the gas-liquid separator, the liquid droplets entrained by the secondary steam are removed, and the pure secondary evaporation is transported from the separator to the compressor. The compressor compresses the secondary steam and sends it to the shell side of the heat exchanger as heating steam for the heat source of the evaporator. The continuous evaporation process is realized.

The characteristics of MVR falling film evaporator are as follows

1. The solution flows in a film shape in a one-way evaporator with high heat transfer coefficient;

2. It covers a small area;

3. For heat sensitive material, it can be made into one pass material, the material retention time is short, and it is not easy to cause material deterioration;

4. Low energy consumption;

5. Small liquid retention, easy to realize automatic cleaning.

MVR falling film evaporation system is suitable for the concentration of materials and pre concentration of salt crystallization. It is suitable for evaporating materials without particles, not easy to scale and with low viscosity, especially for heat sensitive materials.

Main features:

The MVR evaporator energy saving technology is the most advanced international technology of evaporator, only need few live steam (When start evaporator need few live steam, during normal running almost no need live steam), which greatly reduce business operating costs, reduce environmental pollution.

Due to adopt compressor supply heat source, there is little temperature difference which compared with traditional evaporator, and can achieve moderate evaporation,greatly improved product quality and reduce fouling.

No need condenser or only need small size condenser, the structure and process are quite simple, it can be full automatic operation, continuous running, safety and reliable.

This evaporator internal system equipped with CIP clean pipeline, which can achieve clean in place, easy to operate and without dead angle.

Liquid material can be evaporated under low temperature (50-100℃) in this evaporator, the liquid material is uniform and without running material, not easy coking, material heating denaturation is minimal.

Due to use of 100% recycling secondary steam latent heat, completely avoid the use of live steam, so greatly reduced steam consumption.

For heat-sensitive materials can be used with vacuum pump, which can be done in close to absolute pressure under vacuum, so as to realize low temperature evaporation, the minimum evaporation temperature can be 50 ℃.

Simple process control and automation——Because of the small amount of fluid retention, the falling film evaporator can be change according to different vacuum degree/feeding capacity/ concentration/ temperature , which is the basic conditions for stable quality of products.

The handling capacity can be up to 100T/h, with advantages such as small floor space, compact structure, stable operation and so on.

Mechanical Vapor Recompression MVR Evaporator consumption compared with traditional evaporation equipment calculated by evaporating 1T water

Working principle drawing

 Product Details