Variable runner metal wire-rock heat storage type solar heat collector

Abstract

The invention discloses a variable runner metal wire-rock heat storage type solar heat collector. A heat collection and storage section of a variable-diameter runner is filled with metal wires and rock particles, so that increase of a heat exchange area is realized, heat exchange time is prolonged, and continuous disturbance of fluid can be realized, and therefore, the heat exchange effect of a system is further strengthened; the heat collector has an automatic heat sensible and storage function while quickly collecting heat, and has the characteristics of high heat collection and transfer speed, a wide heat collection material source, a wide heat storage material source, a low price, high thermal stability and heating efficiency, small thermal loss, a high outlet air temperature, and energy conservation and environment protection.

Description

technical field [0001] The invention relates to the field of solar heat utilization, and relates to a solar heat collector, in particular to a low- and medium-temperature solar heat collector integrating heat collection and heat storage. Background technique [0002] As a renewable energy source, solar energy has attracted much attention. The efficient use of solar energy can significantly reduce carbon emissions from fossil fuels and improve environmental quality. Flat-plate solar collectors have the advantages of simple structure and reliable operation, but conventional collectors cannot overcome the temperature fluctuations caused by the discontinuity and instability of solar energy and the failure of heat collection functions at night and cloudy days. Although the flat-plate solar collector absorbs heat quickly, it also dissipates heat quickly, resulting in a low thermal utilization rate of solar energy. Therefore, there is an urgent need to develop high-efficiency sola...

AI Technical Summary

Problems solved by technology

Flat-plate solar collectors have the advantages of simple structure and reliable operation, but conventional collectors cannot overcome temperature fluctuations and heat collection failures at night and cloudy days due to the discontinuity and instability of solar energy. Although the flat-plate solar collector absorbs heat quickly, it also dissipates heat quickly, resulting in a low heat utilization rate of solar energy.

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