A buried vertical screw-sunk heat exchanger for a heating or...

F - Mech Eng,Light,Heat,Weapons – 24 – J

Patent

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Details

F24J 3/08 (2006.01) E02D 5/56 (2006.01) E02D 27/12 (2006.01)

Patent

CA 2691363

The invention relates to a hollow pole buried substantially ver-tically into the ground by threading, characterised in that it comprises: at least one helical wing (2) with a flat shape and having a reduced pitch capable of in-ducing a sinking of a few centimetres per rotation when the pole is rotated, the helical wing (2) being mechanically connected and in thermal contact with the outer wall (1) of the pole; an inner partition (3) defining an axial compartment (11) and a side compartment (12) communicating together at the lower portion (13) of the pole; characterised in that the helical wing (2) is in direct thermal contact with the side compartment (12) through the wall thickness of the pole (1) and in that the side compartment (12) has a passage section (S2) substan-tially smaller than the passage section (S1) of the axial compartment (11).

Pieu creux enfoncé sensiblement verticalement dans le sol par vissage caractérisé en ce qu'il comporte : - au moins une ailette hélicoïdale (2) de forme aplatie et présentant un pas réduit apte à provoquer un enfoncement de quelques centimètres par tour, lorsque le pieu est soumis à une rotation, l'ailette hélicoïdale (2) se trouvant liée mécaniquement et étant en contact thermique avec la paroi extérieure (le) du pieu, - un cloisonnement intérieur (3) délimitant un compartiment axial (11) et un compartiment latéral (12) communiquant entre eux en partie basse (13) du pieu, caractérisé en ce que - l'ailette hélicoïdale (2) est en contact thermique direct avec le compartiment latéral (12) à travers l'épaisseur de paroi du pieu (1), et - le compartiment latéral (12) présente une section de passage (S2) sensiblement inférieure à la section de passage (S1) du compartiment axial (11).

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