Heat transfer performance and heat transfer coefficient of plate heat exchanger

With regard to plate heat exchanger, we can make a lot of analysis on the development of plate heat exchanger. Here we look at the development of plate heat exchanger structure.

Sealing device between the boards on the design of the 2 seals, and a signal hole, once the leak occurred, which can be discharged from the external heat exchanger, both to prevent the two kinds of media mix, but also played a role in security alarm.

Small heat loss

In the premise of the same heat transfer coefficient, heat exchanger through reasonable velocity, resistance loss can be controlled in a shell and tube heat exchanger in the range of 1/3, the design of plate corrugation according to thermal conductivity as the goal, special channel formed by the corrugated plate fluid at low velocity can occur strong disturbance flow (Tuan Liu), and the effect of self purification flow disturbance to prevent dirt naturally, so the heat transfer efficiency is very high.

Safe and reliable use

Plate heat exchanger heat transfer coefficient K value of 3000 - 6000W/m2. C, therefore, the plate heat exchanger only need shell and tube heat exchanger area of 1/4 can achieve the same heat transfer effect.

Plate heat exchanger products, processing of materials is very extensive, from the ordinary to the water industry, the high viscosity of the liquid, the liquid medicine material, from food hygiene requirements higher to a certain erosion of the acid-base liquid, liquid material containing particles from powder to liquid suspension containing a small amount of fiber can be used heat exchanger processing.

Less resistance loss

Plate heat exchanger structure is very compact, in the heat transfer under the Ordinance, the space for the shell and tube heat exchanger 1/5. Such as cooling generator and rectifier cycle; for metallurgical and mining machinery lubricating oil; hydraulic station, egg, edible oil sterilization, sterilization of beer, Wine; used for waste heat recovery in textile industry, papermaking industry;

In the same heat transfer condition, heat exchanger shell and tube type heat exchanger is compared, because the heat exchange area, covers an area of, reduce the numerical fluid resistance and other projects, the equipment investment, infrastructure investment, power consumption and cost greatly reduced.

Small footprint, easy maintenance

Because the two media is almost full countercurrent activity, coupled with high heat transfer efficiency, plate heat exchanger, the minimum temperature difference between the two media can reach 1 degrees C. And the tube shell heat exchanger for large space that need inspection.