Plate Heat Exchanger - Experience a Different Taste

　　Plate heat exchanger is an ideal equipment for heat exchange between liquid and liquid, as well as between liquid and vapor. It has the characteristics of high heat transfer efficiency, low heat loss, compact and lightweight internal fin heat exchange tube structure, small footprint, wide application, and long service life. Under the same pressure loss situation, a plate heat exchanger is a type of heat exchanger composed of a series of metal sheets with a certain corrugated shape stacked together. Thin rectangular channels are formed between various plates. Its heat transfer coefficient is 3-5 times higher than that of tube heat exchangers, and small plate heat exchangers occupy one-third of the area of tube heat exchangers, with a heat recovery rate of over 90%. Due to the inversion of different corrugated plates, a chaotic flow channel is formed, causing the fluid to rotate in three dimensions within the flow channel between the corrugated plates. Turbulence can occur at lower Reynolds numbers (usually Re=50~200), resulting in a high heat transfer coefficient, which is generally considered to be 3~5 times that of the shell and tube type. In a shell and tube heat exchanger, two fluids move separately in the tube side and shell side, generally exhibiting cross flow activity with a small logarithmic uniform temperature difference correction coefficient. Plate heat exchangers, on the other hand, are mostly operated in parallel or countercurrent flow, with a correction coefficient usually around 0.95. In addition, the activities of cold and hot fluids in the plate heat exchanger are parallel to the heat exchange surface and have no bypass flow. As a result, gas plate heat exchangers have a small temperature difference at the end of the plate heat exchanger. The heat transfer plates of plate heat exchangers are processed by stamping, which is highly standardized and can be produced in large quantities. Shell and tube heat exchangers are usually manufactured by hand.

• PREV：NOTHING
• NEXT：Atlas HL9-4.1