A trough solar collector system with stable device size

Abstract

The invention provides a trough type solar heat collector system. The trough type solar heat collector system comprises heat collectors, wherein each heat collector comprises heat collecting pipes andreflecting mirrors; the heat collecting pipes absorb solar energy to heat water inside; a plurality of stabilizing devices are arranged in each heat collecting pipe; and the side length of a square is smaller and smaller in the flowing direction of fluid in the heat collecting pipes. Through the arrangement, the heat exchange effect can be improved to the greatest extent.

Description

technical field [0001] The invention belongs to the field of solar energy, in particular to a solar heat collector. Background technique [0002] With the rapid development of modern society and economy, the human demand for energy is increasing. However, the reserves of traditional energy such as coal, oil, and natural gas continue to decrease and become increasingly scarce, resulting in rising prices. At the same time, the environmental pollution caused by conventional fossil fuels is also becoming more and more serious. These greatly limit the development of society and the improvement of human life quality. . Solar thermal conversion is a solar energy utilization method with high energy conversion efficiency and utilization rate and low cost, which can be widely promoted in the whole society. In solar heat utilization devices, the key is to convert solar radiation energy into heat energy, and the device that realizes this conversion is called a solar collector. [000...

AI Technical Summary

Problems solved by technology

[0003] In solar collectors, the heat collecting tube structure is a very common form. This structure generally includes multiple parallel and side-by-side heat collecting tubes, but in operation, the fluid distribution in different heat collecting tubes often occurs unevenly. At the same time, there is also the fact that the temperature of the fluid in different heat collecting tubes is different due to uneven heating, which leads to different pressures in different heat collecting tubes

Long-term operation in this case will cause damage to the heat collecting tube with high pressure, which will cause the overall heat collector to be unable to operate effectively

[0004] In addition, during the heat exchange, the heat collecting tube absorbs solar energy to form a steam-water mixture. The existence of the vapor-liquid mixture causes the gas to mix together, and the heat exchange capacity between the liquid and the liquid decreases, which greatly affects the heat exchange efficiency.

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