Plate Type Heat Exchanger

Gaskets act as seals between the plates.

Plate type heat exchanger.

The flow pattern is set up so that the hot fluid flows between alternate spaces between plates with the cold fluid. The heat transfer area of a gasketed plate heat exchanger consists of a series of corrugated plates assembled between a frame and pressure plates to retain pressure. Plate type heat exchanger consists of plates instead of tubes to separate the hot and cold fluids. A plate heat exchanger is a type of heat exchanger that uses metal plates to transfer heat between two fluids this has a major advantage over a conventional heat exchanger in that the fluids are exposed to a much larger surface area because the fluids are spread out over the plates.

A plate exchanger consists of a series of parallel plates that are placed one above the other so as to allow the formation of a series of channels for fluids to flow between them. The high heat transfer efficiency for such a small physical size has increased the domestic hot water dhw flowrate of combination boilers. The hot and cold fluids alternate between each of the plates. Plate heat exchangers were first produced in the 1920s and have since been widely used in a great number of sectors.

This facilitates the transfer of heat and greatly increases the speed of the temperature change. Because each of the plates has a very large surface area the plates provide each of the fluids with an extremely large heat transfer area. The type of plate heat exchanger to be considered in this article is also sometimes called a plate and frame heat exchanger. Fluids normally run counter currently through the heat exchanger.

Plate type heat exchanger plate heat exchangers are now common and very small brazed versions are used in the hot water sections of millions of combination boilers.