The plate-fin heat exchanger is composed of a partition plate, a fin, a seal and a baffle. The fins, the baffles and the seals are placed between the adjacent two partitions to form an interlayer (channel), and the interlayers are stacked according to different ways of the fluid, and brazed into a whole to form a bundle. The bundle is the core of the plate-fin heat exchanger. What are the characteristics of plate-fin heat exchangers?
(1) High heat transfer efficiency: The boundary layer is continuously broken due to the disturbance of the fluid by the fin, then it has a large heat transfer coefficient. At the same time, since the separator and the fin are very thin and have high thermal conductivity, the plate-fin heat exchanger can achieve high efficiency.
(2) Compact and lightweight: Since the plate-fin heat exchanger has an extended secondary surface, its specific surface area can reach 1000 m2/m3. Lightweight is because it is compact and mostly made of aluminum alloy.
(3) Strong adaptability: the plate-fin heat exchanger can be applied to heat exchange between gas-gas, gas-liquid, liquid-liquid, various fluids and phase change heat.Through the arrangement and combination of the flow channels, it is possible to adapt to different heat exchange conditions such as counter flow, cross flow, multiple streams, and multi-path flow.The heat exchanger can meet the heat exchange needs of large equipment through the combination of series, parallel, series and parallel between units.