Heat exchanger arrangement and method for controlling a fluid by means of a heat exchanger arrangement warmth

摘要

A plate heat exchanger (6) comprising plates (8) with port holes forming port channels (15, 16), where some passages are part of a set of tap-water passages (22) communicating with two of said port channels. A disc (12), with an opening (25), divides one (16) of the tap-water port channels into a first and a second part, such that the tap-water passages (22) are divided into at least two, serially connected, groups. An elongated temperature sensor (26) extends through the disc (12), substantially closing the opening (25). In this way, the temperature sensor may sense two different tap-water temperatures, i.e. the temperatures in the respective parts of the divided port channel, and actuate a valve, controlling the flow of a primary fluid, to an extent representative of the temperatures in both port channels.