Adjustment and protection device for solar energy heat collector

Abstract

The invention relates to an adjustment and protection device for a solar energy heat collector, which comprises a heat preservation water tank and more than one vacuum heat collecting pipe, wherein the vacuum heat collecting pipe is communicated with the heat preservation water tank; the adjustment and protection device further comprises a heat collecting pipe supporting frame and a heat collecting pipe protection cover; the two ends of each vacuum heat collecting pipe are respectively fixed on the respective corresponding heat collecting pipe supporting frame; a cover body lid of a heat collecting pipe protection cover lid is installed on the vacuum heat collecting pipe or is installed on the vacuum heat collecting pipe supporting frame; a cover plug of the heat collecting pipe protection cover is hinged on the vacuum heat collecting pipe; a cleaning brush is arranged on one surface of the cover body adjacent to the heat collecting pipe; and when the cover body rotates, the dust on the surface of the heat collecting pipe can be brushed so as to improve the heat collection efficiency of the heat collecting pipe. As the rotational heat collecting pipe protection cover is additionally arranged in the design scheme, the vacuum heat-collecting pipe can be protected, and the radiation receiving area of the vacuum heat collecting pipe also can be adjusted; and the adjustment and protection device can realize the reasonable utilization according to the season and heat collection demands, thereby preventing the heat-collecting pipe from being damaged by hailstone and improving the heat collection efficiency of the heat-collecting pipe.

Description

technical field [0001] The invention relates to a solar heat collecting device, in particular to a solar heat collector regulating and protecting device. Background technique [0002] The heat collecting devices in solar water heaters in the prior art are widely used due to the glass vacuum tube technology, high heat collection rate and low cost. However, some problems have also occurred in the glass vacuum tube in practical applications: the glass vacuum tube is easily damaged, Especially when encountering hail and rainstorm weather, it will cause its rupture; the outer wall surface of the exposed glass vacuum tube will be covered with a lot of dust and dirt, resulting in a decrease in heat collection efficiency. Due to the seasonal changes in solar heat resources, almost all Solar water heaters are designed according to the most unfavorable weather and sunshine conditions. For example, the number, orientation and angle of the heat collecting tubes are configured according ...

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Problems solved by technology

[0002] The heat collecting devices in solar water heaters in the prior art are widely used due to the glass vacuum tube technology, high heat collection rate and low cost. However, some problems have also occurred in the glass vacuum tube in practical applications: the glass vacuum tube is easily damaged, Especially when encountering hail and rainstorm weather, it will cause its rupture; the outer wall surface of the exposed glass vacuum tube will be covered with a lot of dust and dirt, resulting in a decrease in heat collection efficiency. Due to the seasonal changes in solar heat resources, almost all Solar water heaters are designed according to the most unfavorable weather and sunshine conditions. For example, the number, orientation and angle of the heat collecting tubes are configured according to the winter sunshine conditions. This is a very important problem. When the geographical location is different or the sunlight When there is sufficient time (such as summer), traditional solar thermal collectors will be forced to absorb more heat than actually needed, causing the water temperature of solar thermal collectors to be too high, especially when they are not used for a long time, the radiation from the sun for a long time will A large amount of scale will be generated inside the solar water heater itself and in the glass vacuum tube, which will directly affect the heat conversion and service life of the solar water heater and the glass vacuum tube

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