TWO-PHASE THERMAL SIPHON Russian patent published in 2017 - IPC F28D15/02 

FIELD: heating system.

SUBSTANCE: device contains the one-piece body, consisting of two coaxially located vertical cylindrical chambers, the top and the bottom. The diameter of the bottom chamber is larger than the diameter of the top chamber. In the bottom chamber filled with liquid, there is the filler, the narrow part of which is connected to the steam pipeline, located in the top chamber and having the shape of the twisted tube, on the internal surface of which there is the rectangular protuberance over its entire length. The uniform evenly arranged rectangular protuberances are made on the body internal top surface, where the condensate droplets are formed. Above the body top surface there are the hollow needles, through which the droplet is injected through the hose pump from the water tank along the silicone pipes, passed through the plate equally spaced through holes, fixed with the rod welded to the body side surface, cooling the thermal siphon body top outer surface. The side part of the filler is connected to the bottom chamber internal lateral surfaces and is made with the holes for fluid flow, equally spaced along the circle. The part of the bottom chamber is assigned for the air and other gaseous impurities accumulation, originally contained in the thermal siphon. In the bottom chamber, above the filling liquid level, there is the exhaust valve through which the part of the air is removed from the thermal siphon. The body and rectangular protuberances on its internal top surface are made of the material with the high thermal conductivity coefficient.

EFFECT: efficiency increase of the heat transfer from the cooled part to the heated section by the heat exchange intensification in the two-phase thermal siphon top chamber.

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