A plate heat exchanger is a new type of high-efficiency heat exchanger made up of a series of metal plates with a certain wavy shape. It consists of plates stacked between fixed and movable clamping plates, then secured together with clamping bolts.

Plate heat exchanger features:

a.High thermal conductivity is achieved due to the alternating arrangement of different corrugated plates, forming complex flow paths. This results in a three-dimensional rotational flow within the channels between the corrugated plates, allowing for operation at lower Reynolds numbers (generallyRe=50~200Vortexes are generated below, resulting in a high heat transfer coefficient, which is generally considered to be shell-and-tube type.3~5Multiple.

b.Large logarithmic mean temperature difference, small end temperature difference; in shell-and-tube heat exchangers, the two fluids flow separately in the tube side and shell side, with overall cross flow; the logarithmic mean temperature difference correction coefficient is small. In plate heat exchangers, the flow patterns are mostly parallel or counter-current, and their correction coefficients are usually...0.95Left and right, in addition, the flow of cold and hot fluids in plate heat exchangers is parallel to the heat exchange surface and there is no bypass flow, which results in a smaller temperature difference at the end of the plate heat exchanger, allowing for lower water heat exchange.1°F, while shell-and-tube heat exchangers are typically5℃。

 c.Compact in structure, the small footprint plate heat exchanger has a high heat exchange area per unit volume, similar to that of a tube-and-shell design.2~5The plate heat exchanger occupies about one-third the floor area of a shell-and-tube heat exchanger, as it does not require a dedicated space for extracting the bundle like the shell-and-tube type.1/5~1/10。