Danfoss A/s

Danfoss Power Solutions Aps

Tommi Kolb

Frank Holm Iversen

Stig Kildegaard Andersen

Poul Erik Hansen

A pressure exchanger () including a housing (), a drive shaft () and a cylinder drum () rotatably arranged in the housing () is described, the cylinder drum () including two front faces and at least one cylinder () between the front faces, wherein the housing () includes a port flange () at each end of the cylinder drum () and at least at one end of the cylinder drum () a pressure shoe () is arranged between the cylinder drum () and the port flange of this end. Such a pressure exchanger should be operated in a cost-effective manner. To this end an adjustable stop arrangement () is arranged between the pressure shoe () and the cylinder drum ().

Pressure exchanger

A tube assembly () including an inner tube () having an outer thread (), an outer tube () having an inner thread () engaging the outer thread (), at least for securing an angular position between the inner tube () and the outer tube () is provided. Such a tube assembly should facilitate mounting and maintenance of a reverse osmosis system. To this end, the inner tube () includes at least an groove () on its outer surface and the outer tube () includes an recess () on its inner surface, wherein a blocking element is arranged in a space formed by the recess () and the groove () in overlapping relation with the groove () and the recess ().

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Nordborg, Denmark

Tommi Kolb