Solar collector combined with phase change heat absorption and heat pipe

Abstract

The invention discloses a phase change heat absorption and heat pipe combined solar collector. According to the solar collector, a phase change material for heat storage is combined with heat pipes. The solar collector comprises a plurality of heat pipe type vacuum heat absorption pipes, a main header, a tail header, a phase change energy storage tank and a coolant heat absorption pipe, wherein each heat pipe type vacuum heat absorption pipe comprises a vacuum glass pipe body and a heat pipe; the evaporation sections of the heat pipes are arranged in the glass pipe bodies, and the condensation sections of the heat pipes are arranged outside the glass pipe bodies; the phase change energy storage tank is arranged in the main header, and is filled with the phase change energy storage material; the condensation sections of the heat pipes are arranged in the phase change energy storage tank, and are wrapped with the phase change energy storage material; the heat of the condensation sections of the heat pipes is conducted into the phase change energy storage material through heat conduction silicone grease; the coolant heat absorption pipe is arranged in the phase change energy storage material of the phase change energy storage tank. According to the solar collector, a water tank is replaced by the phase change energy storage tank, so that the size is reduced; moreover, collected heat can be continuously stored well, so that the continuous use of the solar collector is ensured.

Description

technical field [0001] The invention relates to a solar heat collector, in particular to a solar heat collector combined with a phase change heat absorption and a heat pipe. Background technique [0002] With the development of the economy and the increasing shortage of energy sources, the development and utilization of new energy sources is the current top priority. With the continuous progress of solar energy technology, solar collectors have been widely promoted and applied. [0003] Although the solar thermal utilization technology has been relatively perfect, the solar energy cannot continuously provide heat because the utilization of the solar energy is affected by the intensity of the solar energy. Moreover, if the accumulated heat cannot be used in time, part of the accumulated heat will be lost. More importantly, when the weather is not good and there is not enough sunlight, the heat accumulated during the day cannot meet the use requirements. If it is not used , ...

AI Technical Summary

Problems solved by technology

[0003] Although the technology of solar thermal utilization has been relatively perfect, the utilization of solar energy is affected by the intensity of solar energy, resulting in the inability of solar energy to continuously provide heat.

Moreover, if the accumulated heat cannot be used in time, part of the accumulated heat will be lost. More importantly, when the weather is not good and there is not enough sunlight, the heat accumulated during the day cannot meet the use requirements. If it is not used , after one night of heat dissipation, the heat storage needs to be restarted the next day, and a large part of the absorbed heat is wasted. Therefore, at present, the solar collector is mainly used as an auxiliary heating

In order to store the collected solar energy, the general solar collectors use hot water storage tanks, but the inside of the water tank is easily corroded, which shortens the service life of the water tank

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