ADAPTER Russian patent published in 2010 - IPC F28D7/10 

FIELD: heating.

SUBSTANCE: invention may be used as adapter of heat exchange element of "pipe-in-pipe" type when changing hydraulic pattern of heat exchange liquids motion in heat exchanger of nuclear power plant, which operates on liquid metal coolant in mode of alternating loads. Adapter in the form of axial bush with parallel channels and tails for connection of pipes, rigidly joined to inner and outer pipes and creating heat exchange element of "pipe-in-pipe" type, besides inner pipe spacing relative to outer pipe is done with the help of bends, moreover, bends of inner pipe are arranged along helical line as each bend contacts outer pipe, moreover, straight section after each turn of bends equals 4-6 diametres of inner pipe.

EFFECT: design of proposed adapter increases reliability of heat exchange pipe operation at section of phase changeover of heated liquid, since hydraulic pattern of heat exchange changes, which results in absence of thermocyclic stresses.

3 dwg