Importance

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Abstract

A plate pack for a plate heat exchanger comprises a number of heat transfer plates (100) having a number of through ports (110a-d, 120a-f), said plates (100) interacting in such manner, that the plates (100) between them form a first flow duct and a second flow duct and that the ports (110a-d, 120a-f) form at least one inlet duct and at least one outlet duct (110a-d, 120a-f; 230, 240; 330, 340; 630, 640) for each of the flow ducts. The inlet duct of at least the first flow duct comprises at least two primary ducts (110a-b; 230a-b; 330a-b; 630a-b), which are arranged to receive a fluid flow intended for the first flow duct, and at least one secondary duct (110c), which communicates via a flow passage with the primary ducts (110a-b) and the first flow duct and which is arranged to receive said fluid flow from the primary ducts (110a-b) and to convey this flow to the first flow duct. It is further described a heat transfer plate of the above type, a plate heat exchanger having plates and plate packs of the above type as well as use of a heat transfer plate of the above type in a plate heat exchanger and a plate pack respectively.

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First Claim