SOLAR WATER HEATER Russian patent published in 2017 - IPC F24J2/34 

FIELD: heating.

SUBSTANCE: solar water heater contains a vertically arranged transparent housing. There is a tank inside the body. It is painted black and has a water inlet branch pipe formed by the surfaces of two coaxially located cylinders, a lid and a bottom. An internal hollow cylinder with an open upper end is elongated and has holes located inside the housing under the tank bottom. Inside the tank there is a multi-threaded spiral insert with the formation of separate channels. Adjacent channels are provided at the top of the insert with an overflow branch pipe. Each channel is provided with a branch pipe for tapping hot water.

EFFECT: increased efficiency of the solar water heater by reducing the time of water heating up to a set temperature.

2 dwg