Flat plate type solar heat collector

Abstract

The invention relates to a flat plate type solar heat collector. The flat plate type solar heat collector comprises a shell and a pipeline arranged in the shell, wherein the shell comprises a heat collecting plate, a back cover plate, and a frame in sealed connection with the heat collecting plate and the back cover plate; the heat collecting plate is a whole piece of sheet; the pipeline comprises a plurality of heat collecting pipes and a discharge pipe, the plurality of heat collecting pipes are on the heat collecting plate side by side and connected with the heat collecting plate as a whole, and the discharge pipe is connected with and communicated with the heat collecting pipes; after each heat collecting pipe absorbs heat, water is discharged by the discharge pipe. The flat plate type solar heat collector uses the heat collecting plate made by a whole piece of sheet, and no heat loss is generated; because a plurality of heat collecting pipes are connected with the heat collecting plate into a whole, so that after the sun irradiates the heat collecting plate, the heat energy can be transferred to the pipeline with high efficiency; and because the heat collecting plate is a whole piece of sheet, the splicing procedure is unnecessary, so that the manufacturing cost is saved.

Description

technical field [0001] The invention relates to a solar water heater, in particular to a flat-plate solar heat collector. Background technique [0002] With the development of modern industry, on the one hand, the demand for energy is increased, causing an energy crisis; on the other hand, a large amount of carbon dioxide gas is released in the use of conventional energy, leading to a global "greenhouse effect". For sustainable development, countries around the world are trying to get rid of their dependence on conventional energy and accelerate the development of renewable energy. As the most ideal renewable energy, solar energy has the characteristics of "inexhaustible and inexhaustible". Using solar energy to prepare hot water is environmentally friendly and energy-saving. [0003] At present, vacuum tube water heaters (including heat pipe vacuum tube type), flat plate water heaters and sun-dried water heaters are mostly used. The heat loss coefficient of the current fl...

AI Technical Summary

Problems solved by technology

The heat loss coefficient of the current flat-plate solar collector products is high, which is much higher than that of the vacuum tube solar collector υ2 k, resulting in low heat gain in winter

Second, the large-scale production of flat-plate solar collectors has not formed, resulting in higher prices for high-quality flat-plate solar water heaters

However, such spliced ​​heat collectors will cause heat loss, and the connection method of the pipes will also generate large thermal resistance, which is not conducive to effective heat conduction, and finally leads to low solar heat conversion efficiency; in addition, the cost of the splicing method is also high

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