Alfa Laval Corporate Ab

Alfa Laval Corporation Ab

Philippe Maupetit

Boualem Oudjedi

Pierre Martinez

Olivier Fourt

The invention relates to a spiral heat exchanger including a central cylinder () and at least two spiral sheets (). The sheets extend from the cylinder to form a first spiral-shaped flow channel () for a first medium and a second spiral-shaped flow channel () for a second medium. The cylinder forms an inner space within the cylinder. The cylinder includes a first opening () communicating with the first flow channel and a second opening () communicating with the second flow channel. A pipe () extends into the inner space of the cylinder. A first communication channel, communicating with the first flow channel via the first opening, is formed within the pipe. A second communication channel, communicating with the second flow channel via the second opening, is formed in the inner space outside the pipe.

Spiral heat exchanger

The invention relates to a spiral heat exchanger including at least two spiral sheets ( ) extending along a respective spiral-shaped path about a common center axis (x) and forming at least two spiral-shaped, substantially parallel flow channels ( ). Each flow channel ( ) permits a heat exchange fluid to flow in a substantially tangential direction with respect to the center axis (x). Each flow channel includes a radially outer orifice, which forms an outlet or an inlet of the respective flow channel and which is located at a radially outer part of the respective flow channel and a radially inner orifice, which enables communication between the respective flow channel and a respective inlet/outlet chamber ( ). The center axis (x) extends through the inlet/outlet chamber of the radially inner orifice. The spiral heat exchanger includes a center body ( ) extending around the center axis (x) and being closed with respect to the flow channels ( ).

Growing community of inventors

Arbourse, France

Philippe Maupetit