Talk about the effect of plate heat exchanger fouling on heat transfer equipment
The scale of the plate heat exchanger will cause the heat transfer coefficient of the heat transfer equipment to decrease, and in severe cases block the passage of the plate. Plate heat exchangers have many supporting points for plate design, disturbing the medium (turbulent flow of the medium to improve the heat transfer coefficient) and pressure bearing effect.
It is a local accumulation of solid debris and fibers. The side effect is that the fluid forms part of the stagnation and produces dust and deposits. After separation at the appropriate temperature, calcium and magnesium ions in the medium can easily attach to the accumulated tumors. Large, forming honeycomb scales.
In the absence of liquid, the sealed groove of the plate heat exchanger is provided with a drainage channel, and even if there is a leak, various media will not collide, and the media will always be discharged outward. Place the plate tightly. Compared to other types of heat exchangers, plate heat exchangers have a smaller footprint and space. The plate heat exchanger with the same heat exchange capacity is only 1/5 of the shell and tube heat exchanger.