Plate for heat exchange arrangement and heat exchange arrangement

Abstract

A plate () for a heat exchange arrangement has a first heat transferring surface (A) with a protrusion () forming a continuous and closed ridge. This ridge divides said surface into a closed inner region (A) and an outer region (A). The inner region (A) encloses a first inlet porthole () and a first outlet porthole () for a first medium. The outer region (A) has a second inlet porthole () and a second outlet porthole () for the first medium. A heat exchange arrangement comprises a stack of first and second plates of the above type. The protrusions () on the first heat transferring surfaces (A) of said plates are connected to each other to separate first channels into first and second flow paths for the first medium. Each first flow path is configured to direct the first medium from a first inlet to a first outlet inside the inner region (A) and each second flow path is configured to direct the first medium from a second inlet to a second outlet in the outer region (A), said inlets and outlets being defined between said inlet and outlet portholes (andrespectively).