Swep International Ab

Thomas Dahlberg

Sven Andersson

Fredrik Strömer

Svante Hoberg

Per Rissler

Lars Fogelberg

Magnus Folkelid

Dirk Sterner

Veikko Pihlajaniemi

Sven Karlsson

Bengt-Ove S&auml;iner

A distribution pipe () for a heat exchanger () including at least two parallel channels for a first medium exchanging heat with a second medium comprises a distribution portion () provided with a number of holes () provided on positions corresponding to the position of the parallel channels. A fitting portion () is in fluid communication with the distribution portion () and placed at one end of such distribution portion (), wherein the fitting portion is provided with a brazing surface () adapted to be brazed onto an end plate () or a start plate ().

Distribution pipe

A container ( ) adapted to avoid peak temperatures of water delivered from a heat exchanger ( ) is provided with interior reinforcing means ( , FIG. &prime;&Prime;, FIGS. ) connecting opposite parts of the wall ( &prime;) of the container ( ). Even with a thin container wall this makes it possible to use a box shaped container design without risk of deformations due to variations in the water pressure. The reinforcing means may consist of stacked interconnected plates ( &prime;&Prime;)&mdash;e.g. having the same form and size as plates ( &Prime;) used in a plate heat exchanger connected to the container ( ).

Water heater comprising a plate heat exchanger and a storage container for heated water

In a three circuit plate heat exchanger stacked plates (,) forming channels for two flows (y, z) of fluid which should exchange heat with a third fluid (x) are each comprising two plate areas (,) surrounding two port forming holes and four plate areas (,) surrounding four port forming holes. The said two plate areas (,) surrounding two of the port holes are displaced through a vertical distance (H) away from the areas (,) surrounding four of the port forming holes. All channel forming plates are provided with a pressed pattern the maximum pressed depth of which is&equals;h&equals;about H/2.

Three circuit plate heat exchanger

Plate heat exchanger

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Helsingborg, Sweden

Thomas Dahlberg