POWER CASCADE OF VORTEX CHAMBERS Russian patent published in 2009 - IPC F24J2/42 F03G6/04 

FIELD: heating.

SUBSTANCE: invention relates to solar power engineering, namely, to that field of it which generates electric and thermal power, solar energy making an initial power source. The proposed power cascade incorporates two vortex chambers mounted one above the other. Every vortex chamber comprises power-conversion modules of helio-aerobaric thermal electric power station wherein wind turbine is driven by the central power airflow with rotary tornado-shaped trajectory. It comprises also air-swirling accelerating cylinder with its side surface diametre equal to that of pre-turbine accelerating shaft wherein previously mentioned central power airflow is created with the rotary-translating trajectory. It includes the accelerating cylinder top and bottom bases made in heat-insulation material and representing lower and upper covers tightly jointed to the said cylinder. It comprises, further on, air-swirling air ducts connected, along the tangential line to aforesaid side cylindrical surface and/or to one of the covers. The ducts allow airflow to flow there through with rotation about the central axis; the airflow can be a heat carrier. The station comprises the vertical cylindrical air offtake with its diametre smaller than that of the side cylindrical surface of vortex chamber fixed at the upper cover in symmetry with the axis. Airflow is tangentially fed from the first into second vortex chamber by direct-flow air ducts, connected tangentially, via air-swirling inlets arranged in one of aforesaid covers and/o in its side cylindrical surface. The second vortex chamber features the rotary airflow tangential speed increased several times. High-speed heated airflow with rotary-translating trajectory flows upward from the second vortex chamber, via the air offtake cylinder, and features high kinetic energy sufficient to drive wind turbine at rated torque. Aforesaid accelerating shaft can accommodate a larger number of vortex chambers connected consecutively with respect to the said central airflow to make its tangential speed, at turbine intake, reaches 150 to 200 m/s. Cold airflow flowing downward along the central axis is heated by hot heat carrier at the vortex chamber bottom.

EFFECT: proposed power cascade can be used as low-cost heat recovery plant to be used at metallurgical works with major heat losses.

2 dwg