Solar thermal storage tube and processing method thereof

Abstract

The invention provides a solar heat accumulation pipe and a machining method thereof. The solar heat accumulation pipe comprises a solar vacuum glass collector pipe, a heat accumulation pipe, a heat accumulation pipe retraction ring, a heat accumulation pipe retraction conical face, a heat exchanging pipe, a guide pipe, a water outlet pipe, a water inlet pipe, a thermal insulation layer and a shell, wherein the heat accumulation pipe is disposed in the solar vacuum glass collector tube and filled with phase change heat accumulation material, the heat exchanging pipe is disposed in the heat accumulation pipe, the guide pipe is disposed in the heat exchanging pipe, the heat exchanging pipe is connected with the water outlet pipe, the water inlet pipe is disposed in the water outlet pipe, the thermal insulation layer is disposed outside the water outlet pipe, the shell is disposed outside the thermal insulation layer, the heat accumulation pipe comprises a heat accumulation pipe body, the heat accumulation pipe retraction ring and the heat accumulation pipe retraction conical face, the heat accumulation pipe retraction ring is disposed at one end of the heat accumulation pipe body and connected with a heat accumulation pipe retraction body, and the heat accumulation pipe retraction conical face is connected with the heat accumulation pipe retraction ring. The invention further provides a machining method of the solar heat accumulation pipe. The solar heat accumulation pipe is simple in structure, high in safety performance, long in service life and high in production efficiency.

Description

technical field [0001] The invention relates to the technical field of solar thermal storage, in particular to a solar thermal storage tube and a processing method for the thermal storage tube. Background technique [0002] In the structure of traditional solar heat storage tubes, the heat storage tubes are filled with phase change energy storage materials inside, and aluminum terminal seals are used on the outside of the energy storage tubes. The diameter of the aluminum seals is consistent with the diameter of the heat storage tubes. To connect, the inside of the heat storage tube is connected with the heat conduction tube through a high temperature resistant silicone seal. [0003] In the above-mentioned traditional solar heat storage tube structure, the stored heat is transferred to hot water through the heat pipe and high-temperature-resistant heat-conducting silica gel. With the passage of time, the high-temperature heat-resistant thermal silica gel will have a certai...

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Problems solved by technology

[0003] In the above-mentioned traditional solar heat storage tube structure, the stored heat is transferred to hot water through the heat conduction tube and high-temperature-resistant heat-conducting silica gel. With the passage of time, the high-temperature heat-resistant thermal silica gel will have a certain degree of deformation and attenuation of thermal conductivity, which will affect the final heat conversion efficiency and user experience of the overall product, and increase the maintenance cost of the product.

[0004] The above-mentioned traditional solar heat storage tube structure will withstand relatively large water pressure during use. Since the aluminum seal and the heat storage tube are connected by mechanical buckling, and the high-temperature resistant silicone and the heat conduction tube are connected by mechanical buckling, the heat storage tube The structural strength and pressure bearing capacity of the heat pipe and the heat pipe are relatively insufficient. After long-term use, the safety performance and service life of the two parts of the structure will be affected.

At the same time, in the production process of the above-mentioned traditional solar heat storage tube structure, at least different components such as heat storage tubes, heat conduction tubes, aluminum seals, and high-temperature-resistant heat-conducting silica gel need to be produced. The production process and efficiency are relatively complicated, and the cumulative product pass rate lower production efficiency

[0005] In addition, the structure of traditional solar heat storage tubes includes multiple components such as heat storage tubes, aluminum seals, and high-temperature-resistant heat-conducting silica gel. The separate production and fabrication of different components such as silica gel and then combined, the processing is complicated and the production efficiency is low

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