Falling Film Evaporator J150
The plate-type falling film evaporator mainly uses gravity to make the liquid material flow downward in the form of a thin film along the surface of the vertically placed heat exchange plate. At the same time, the other side of the plate is heated by the heating medium to quickly evaporate the water in the material.
- High Heat Transfer Efficiency: The corrugated design of the plates creates intense turbulence even at low flow rates, significantly disrupting the thermal boundary layer and reducing thermal resistance. Its heat transfer coefficient is typically 3-5 times that of a shell-and-tube heat exchanger.
- Compact Structure and Small Footprint: The thin, tightly packed plates provide a large heat transfer area per unit volume.To achieve the same heat transfer performance, the footprint and volume of a plate heat exchanger are significantly smaller than those of a shell-and-tube heat exchanger.
- Low Heat Loss: Only the plate edges and the pressure plate are exposed, eliminating the need for additional insulation, resulting in negligible heat loss.
- High Flexibility and Easy Adjustment: When process requirements change, the heat transfer area can be easily adjusted to accommodate new operating conditions by simply adding or removing plates.
- Large Logarithmic Mean Temperature Difference and Small End-Temperature Difference: Plate heat exchangers enable pure countercurrent heat transfer, resulting in a larger logarithmic mean temperature difference between the two fluids and a stronger heat transfer driver.
- Low fouling coefficient: Strong turbulence prevents suspended matter from settling on the plates. The corrugations of the plates also provide a self-cleaning effect, reducing scaling.
- Suitable for a variety of media: By replacing the intermediate plate or adopting a dual-plate design, a single unit can simultaneously handle heat exchange for two or more media.
- Easy to install and maintain: Maintenance and cleaning are extremely convenient. Simply loosen the compression bolts to open the unit and thoroughly inspect and mechanically clean the plates.
