HEAT- AND MASS-EXCHANGE APPARATUS Russian patent published in 2007 - IPC F28D11/00 

FIELD: heat- and mass-exchange apparatus; power engineering and allied industries.

SUBSTANCE: proposed heat- and mass-exchange apparatus is used for exchange between gas and liquid or immiscible liquid. Apparatus has housing with rotor revolving inside it; rotor has external housing with peripheral part made in form of diffuser. Cylindrical surface rigidly secured on both sides of external housing of rotor coaxially relative to hollow drive shaft is extension of external housing forming double-pipe heat exchanger. Surface of hollow drive shaft of "contraction-diffuser" type is made in form of curvilinear surface profiled according to exponential function, polynomials of second, third or fourth order or by arc of circle.

EFFECT: increased heat-exchange surface at total reduction of hydraulic resistance of flow section of hollow drive shaft and thermal reduction of heat-transfer curvilinear surface of hollow shaft, type "contraction-diffuser".

2 dwg