Introduction
The plate evaporator is a new type of high-efficiency evaporator made up of a series of corrugated metal sheets. A thin rectangular channel is formed between the plates, and the heat is transferred through the plates to form a thin film evaporation. The evaporated solution is heated and boiled in the evaporator and quickly vaporizes. The evaporation will drive the material liquid to rise, and a liquid film is formed along the heat exchange wall, so that the liquid flows over the heated surface in a liquid film shape, and quickly evaporates and vaporizes, thereby shortening the heating The residence time of, strengthens the evaporation effect, has the characteristics of high heat transfer coefficient, high evaporation intensity and short contact time.
main feature
1.High heat transfer efficiency
The special corrugated plate design makes the fluid produce high-intensity turbulence. At the same time, it can also make the cold and hot fluid flow evenly across the entire plate, without heat exchange dead zones, and can obtain a good evaporation effect. The heating steam and the steamed material liquid are pure countercurrent heat transfer, so that the heating cycle process of the steamed material liquid is ingeniously arranged corresponding to the steam condensation process from high to low.
2.Low heat loss, low energy consumption, low operating cost
With high heat transfer coefficient, the plate evaporator can work when the temperature difference between the end faces is 3-5℃. Due to its compact structure and small size, the outer surface area of the evaporator is also very small, so the heat loss is also very small, and usually the equipment no longer needs to be insulated. When used in MVR system integration, it can save compressor power and reduce energy consumption input. In the multi-effect evaporation, the temperature difference of each effect can be effectively used, and the power of the vacuum pump group can be reduced.
3.Not easy to scale and block, with self-cleaning function
Control the flow rate of the material between the plates, so that the material can reach a vigorous turbulent state at a very low flow rate, forming a three-dimensional spiral flow between the plates. The fluid flows turbulently on the corrugated channel, which is naturally not easy to scale and block.
4.Small footprint, easy expansion, easy maintenance
5.Use safe and reliable, improve product quality
Two seals are designed on the sealing device between the plates, and a signal hole is also provided. In case of leakage, it can be removed from the outside of the evaporator, which not only prevents the mixing of steam and materials, but also serves as a safety alarm. . The plate evaporator has low material retention, short heating time and quick start-up. It is a good choice for heat-sensitive products.
6.Save civil construction costs and save space
The plate evaporator (rising film, forced circulation) has a simple process, saves installation costs and installation space, and greatly reduces plant construction costs.
