Types and selection of heat exchangers

Heat exchanger: Also known as a heat transfer device, it is a mechanism that transfers part of the heat from a hot fluid to a cold fluid, and is also referred to as a heat exchange unit. Heat exchangers: Classified by heating method, they include electric heat exchangers, heat transfer oil heat exchangers, flame-type heat exchangers, gas heat exchangers, solar heat exchangers, and so on. Heat exchangers: Classified by structure, these include spiral plate heat exchangers, corrugated tube heat exchangers, shell-and-tube heat exchangers, plate heat exchangers, shell-and-tube heat exchangers, volumetric heat exchangers, floating-head heat exchangers, tubular heat exchangers, heat pipe heat exchangers, steam-water heat exchangers, heat exchange units, graphite heat exchangers, air heat exchangers, and more. Heat exchanger structure types and characteristics: It is not easy to explain the structural characteristics clearly here. Such as shell-and-tube heat exchangers: also known as tubular heat exchangers. It is a shell-and-tube heat exchanger in which the wall of the tube bundle enclosed within the shell serves as the heat transfer surface. The structure consists of components such as a shell, heat transfer tube bundles, tube sheets, baffle plates, and tube boxes. The shell is usually cylindrical in shape, and it contains a tube bundle whose ends are fixed to the tube sheet. The two fluids involved in heat exchange, one hot and one cold, flow within the tubes; the fluid that flows within the tubes is called the tube-side fluid ； Another type flows outside the tubes and is called the shell-side fluid. To improve the heat transfer coefficient of the fluid outside the tube, several baffles are typically installed inside the shell. The baffle can increase the fluid velocity in the shell side, forcing the fluid to pass horizontally through the tube bundle multiple times along a specified path, thereby enhancing the turbulence of the fluid. The heat exchange tubes can be arranged on the tube sheet in an equilateral triangle or square pattern.

The most widely used type at present is still the shell-and-tube type; the plate-type type is also developing rapidly, with higher efficiency than the shell-and-tube type.

The forum has a lot of relevant content; the original poster can take a look at the link below: http://bbs.hcbbs.com/search.php?searchid=3449&orderby=lastpost&ascdesc=desc&searchsubmit=yes. I believe the selection of heat exchangers is related to many factors, such as the temperature and pressure of the material, the properties of the material (i.e., its heat capacity), and its corrosiveness. The volume and pressure drop required by the heat exchanger. Whether the material is a viscous substance. I’m thinking the poster might recommend a book, namely the \"Guide to the Selection and Design of Heat Exchangers\"; the download address on the forum is http://bbs.hcbbs.com/viewthread.php?tid=250433&highlight=%C8%C8%BD%BB%BB%BB%C6%F7

The poster on the 2nd floor didn’t mention everything: there are also radial heat exchangers, integral heat exchangers, octagonal tube brick heat exchangers, rotary ceramic heat exchangers, clay heat exchangers, and so on.