Solar heat collecting pipe

Abstract

The invention discloses a solar heat collecting pipe. The solar heat collecting pipe comprises a support, a water tank and a heat collecting pipe body, wherein the support is located on the lower endface of the water tank and is used for supporting and fixing the water tank, the heat collecting pipe body is arranged on one side of the water tank, an upper fixing mechanism is arranged between thewater tank and the heat collecting pipe body, a lower fixing mechanism is arranged at the bottom end of the heat collecting pipe body, a shielding mechanism is arranged on the lower side of the heat collecting pipe body, connecting mechanisms are arranged at the two ends of the shielding mechanism correspondingly, and the shielding mechanism is connected with the upper fixing mechanism and the lower fixing mechanism through the connecting mechanisms at the two ends respectively. According to the solar heat collecting pipe, by adding the shielding mechanism, the connecting mechanisms and a transmission mechanism for mutual cooperation, the shielding mechanism can be rotated through the transmission mechanism and the connecting mechanisms according to seasonal use requirements and personal use habits of a user, so that the purpose of shielding sunlight for the heat collecting pipe is achieved, and water evaporation caused by long-time boiling of water in the heat collecting pipe and occupation of the water storage space inside the heat collecting pipe due to large-scale scaling are reduced.

Description

Technical field[0001]The invention relates to the technical field of solar heat collection tubes, in particular to a solar heat collection tube.Background technique[0002]Solar water heaters are devices that use sunlight to heat water. Solar water heaters are divided into vacuum tube solar water heaters and flat panel solar water heaters. Vacuum tube solar water heaters account for 95% of the domestic market. Vacuum tube type domestic solar water heaters are composed of heat collection tubes, water storage tanks, brackets and other related parts. The conversion of solar energy into heat mainly relies on vacuum heat collection tubes, using the principle of hot water floating up and cold water sinking, so that the water generates micro-circulation to achieve the required Hot water.[0003]In the process of implementing the present invention, the inventor found that at least the following problems in the prior art have not been solved: 1. Traditional solar collector tubes are prone to hig...

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Problems solved by technology

[0003] In the process of realizing the present invention, the inventors have found that at least the following problems in the prior art have not been resolved: 1. Traditional solar collector tubes are prone to high-temperature evaporation during the process of using sunlight to heat water, resulting in lack of water and solar tube bursts Especially in the hot summer, when the outdoor temperature is high and the sun is exposed to high temperature for a long time, this kind of situation happens from time to time. Continuously exposed to high temperature, the water inside the heat collecting tube will continue to boil. At this time, the heat collecting tube will not only reduce the water evaporation or burst, but also the internal water will continue to boil, and a large amount of scale will form in the water. Scale nodules, this kind of situation will not only affect the heat conversion efficiency of the heat collector tube, but also the accumulation of scale inside the heat collector tube will occupy the water storage space inside the heat collector tube, resulting in a greatly reduced water storage capacity inside the heat collector tube after long-term use, so The traditional method is to ask professionals to disassemble and rinse the heat collecting tubes to clean out the scale inside them, but this process is relatively cumbersome, and solar water heaters are usually installed on the roof of the building without large objects to ensure the conversion of heat. The installation location, If the staff frequently cleans it, frequent climbing operations are required, which will undoubtedly increase the safety hazards of climbing operations and affect personal safety; 2. Traditional solar water heaters are installed outdoors without large shelters. When the device is exposed to the outdoor environment, especially when it is used in areas with a lot of wind and dust, a large amount of dust will adhere to the surface of the heat collecting tube, which will affect the heat conversion of the heat collecting tube. At the same time, the installation position of the device It is too high, non-professionals can't climb up to clean up, and the frequent climb up to clean up is not in line with the actual situation, and the cleaning effect can't be better satisfied only by rainwater washing, so the traditional solar water heater heat collector still has deficiencies in the use process ,Room for improvement

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