MULTIPIPE HEAT EXCHANGER Russian patent published in 2009 - IPC F28D15/00 

FIELD: heating.

SUBSTANCE: invention concerns thermal power industry and can be applied in heat exchange process implementation, particularly in utilisation of low-potential thermal power. Multipipe heat exchanger (MPHE) includes case divided into cooling and heating chambers and housing thermal pipes consisting of case with evaporation, transportation (wick) and condensation zones filled partially with work fluid. Heat exchanger case houses: cooling chamber with hot medium inlet and outlet pipes and evaporation zone consisting of evaporation cartridges put in chequer order with inner surface coated with capillary material (wick) stripes forming grooves between them; collector frame with wick bulk, connected over holes to open ends of evaporation cartridges and cooling chamber wick stripes respectively; heating chamber featuring cold medium inlet and outlet pipes, where condensation zone includes condensation cartridges put also in chequer order with their axes displaced against axes of evaporation cartridges, and their cap connected to collector chamber wick bulk by lifting wicks passing through condensation cartridge centre without touching inner wall surface of cartridges, connected to holes in collector chamber cap. Transportation zone includes intercontacting stripes in evaporation cartridges of cooling chamber, bulk in collector chamber and removable stripes in condensation cartridges of wick heating chamber.

EFFECT: improved efficiency and reliability.