METHOD FOR GROUND COOLING AND HEAT-CONDUCTION PILE FOR GROUND COOLING Russian patent published in 2005 - IPC

FIELD: building heat-engineering structures, particularly for forming supports of different structures in permafrost areas.

SUBSTANCE: method involves condensing gaseous working agent in condensing chamber by cooling thereof with ambient air over ground surface; moving condensed liquid under gravity through transporting channel to evaporating chamber; evaporating thereof inside evaporating chamber and returning gaseous working agent into condensing chamber. Gaseous working agent is condensed in space having volume exceeding volume of space for working liquid evaporation. T-shaped pile for ground cooling comprises vertical reinforced concrete body with horizontal support located above ground surface, condenser part of heat pipe made of tubes and having transporting channel located inside pile body and connected to finned evaporator part along heat pipe axis. The heat pipe is also located above ground surface. Condenser part is formed of symmetrically bended tube with parts inclined towards center thereof. Condenser tube diameter exceeds that of transporting channel communicating with central area of condenser part. Transporting channel part connected with evaporator part is made as inner wall thereof and forms annular cavity defined by transporting channel and outer wall of evaporator part in cross-sectional plane thereof. Volume of the transporting channel is less than condenser part volume. Transporting channel is closed with end cap located behind the cavity and has side orifices to communicate the cavity with evaporator part. The side orifices are formed in front of the end cap.

EFFECT: increased efficiency of ground cooling around the pile.

4 cl, 1 dwg