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What is a plate heat exchanger?
Author:
A plate heat exchanger is a highly efficient heat exchanger composed of a stack of metal plates with specific corrugated profiles. Thin rectangular channels are formed between the plates, enabling heat transfer through them. Plate heat exchangers are ideal for heat exchange between liquids, as well as between liquids and vapors. They feature high heat-transfer efficiency, minimal heat loss, a compact and lightweight structure, a small footprint, broad applicability, and a long service life. Under the same pressure-drop conditions, their overall heat-transfer coefficient is 3 to 5 times higher than that of shell-and-tube heat exchangers, while occupying significantly less space. Plate heat exchangers are mainly available in two major types: frame-type (removable) and brazed-type. The plate configurations are predominantly herringbone‑corrugated.
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