heat pipe solar collector

The HPVT consists of vacuum tubes, copper heat pipe, aluminum fins and plug.
The heat pipe is composed of heat-energy absorption unit and condenser unit, and is hollow with the space inside evacuated. the condenser zone of the heat pipe is inserted to the copper sleeves which are distributed on the water pipe averagely. After the solar energy is absorbed by the vacuum tubes, it is transferred to the heat pipe through the aluminum fin. Heated by the energy, the medium in the heat-pipe is working and transferring the heat energy to the condenser zone. When water or other medium in the water pipe flows across the copper sleeves, they would bring the energy and be heated.