Alfa Laval Corporate Ab

Kerstin Drakarve

Håkan Larsson

Mehrdad Mohammadian

Thord Gudmundsson

Hakan Larsson

A plate heat exchanger comprises first heat exchanger plates, second heat exchanger plates, first plate interspaces each formed by a primary pair of one second heat exchanger plate and an adjacent first heat exchanger plate, and second plate interspaces each formed by a secondary pair one first heat exchanger plate and an adjacent second heat exchanger plates. Each first heat exchanger plate comprises a peripheral rim surrounding a first porthole and defining an inlet channel for a first fluid through the plate heat exchanger. Each secondary pair encloses an inlet chamber adjacent to the peripheral rim. The inlet chamber is closed to the second plate interspaces, open to the inlet channel and communicates with one of the first plate interspaces via a nozzle member, thereby permitting a flow of the first fluid from the inlet channel to the first plate interspace.

Plate heat exchanger

The invention relates to a heat transfer plate () intended to constitute, together with other heat transfer plates, a plate stack () with permanently connected plates for a heat exchanger (), which heat transfer plate () has a first long side () and an opposite second long side (), a first short side () and an opposite second short side (), a heat transfer surface () exhibiting a pattern () of ridges () and valleys (), first and second port regions (and), the first port region () being situated in a first corner portion () formed at the meeting between the first long side () and the first short side (), the second port region () being situated in a second corner portion () formed at the meeting between the second long side () and the first short side (), and the first port region () being connected to a number of ridges (-) and valleys (-), which ridges (-) and valleys (-) have in principle an extent from the first port region () diagonally towards the second long side ().

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Dalby, Sweden

Kerstin Drakarve