Structure of plate heat exchangers

This post was last edited by DXJ122 on 10/9/2010 at 10:39. In the design field, shell and tube heat exchangers are considered \"non-standard\" devices; that is, process calculations must be carried out first, followed by the creation of designs by specialized engineers, and it’s necessary for everyone to have some understanding of their structure. Plate heat exchangers are considered “standard equipment”; designers only need to fill in the data sheets, without having to understand the structural details. Plate heat exchanger manufacturers do not provide detailed structures.

A plate heat exchanger consists of highly efficient heat-transfer corrugated plates and a frame. The plates are clamped by bolts between a fixed compression plate and a movable compression plate, thereby creating numerous flow channels inside the heat exchanger; the gaps between the plates are sealed with rubber/tetrafluoroethylene. The compression plate has connectors for the connection of this device to the outside. The plate is made by pressing high-quality corrosion-resistant metal sheets; it has corner holes at the four corners for the medium to enter and exit, as well as hanging holes on the top and bottom. Herringbone ripples can increase disturbances in the fluid, enabling it to reach a turbulent state at low speeds and thus achieving high heat transfer efficiency. It also features a special structure to ensure that the two fluid media do not leak into each other.