Novel plate type solar heat collection method and its heat collectors

Abstract

The invention provides a novel flat typed solar energy collect method and a heat collector. The flat typed solar energy collect method is as follows: a fin with a plurality of arrangement hole channels in same direction or channel flows is arranged inside a plat typed frame. Liquid working medium is filled in the plat frame after the flat frame is processed vacuum treatment. The working medium naturally forms heat pipe effect in the hole channels or channel flows formed by the fin. The end part of the flat frame in which the condensation end of the heat pipe is located is arranged inside a water storage tank. The condensation end is condensed and exchanged heat in the water storage tank, and the hot water is made. The heat collector has the characteristics of simple structure, reliable working condition, low cost, free maintenance, high heat collection efficiency, being freeze proof and energy-saving.

Description

technical field [0001] The invention relates to the technical field of solar energy utilization, in particular to a novel flat-plate heat collecting method and a heat collector adopting the method. Background technique [0002] The overexploitation and use of traditional energy sources such as coal and oil have led to the depletion of this non-renewable biomass energy, and solar energy, as a renewable and environmentally friendly new energy source, is getting more and more attention in today's society. [0003] As an important field of solar energy utilization, solar collectors are not only simple in structure, low in cost, easy to maintain, but also high in reliability compared to other solar energy utilization technologies. After one installation, they do not need to consume any external power. It can provide a large amount of hot water for people's life and production activities, which is very convenient and improves people's quality of life. [0004] At present, the sol...

AI Technical Summary

Problems solved by technology

[0005]The advantages of flat-plate solar collectors are very prominent: high thermal efficiency, metal tube-sheet structure, excellent strength, service life and working reliability, maintenance-free, easy to work The service life can reach 15 years, and it has high cost performance. Its main disadvantage is that it is not resistant to frost. For users in southern regions such as Guangdong, Fujian, Hainan, Guangxi, and Yunnan, there is no need to consider For the problem of frost resistance in winter, it is most suitable for users in this area to use flat-plate solar collectors

[0006] Evacuated tube solar collectors not only have the characteristics of antifreeze, but also have higher cost performance than heat pipe and U-tube solar collectors. The main disadvantages are: No pressure, easy to scale, easy to burst; for users in the Yangtze River and Yellow River basins, there is a frosty climate in winter, and the general temperature is higher than -20°C, so vacuum tube solar collectors can be selected

The demand for industrial hot water is large, and a large area of ​​solar collector is required. It is required that the collector is not easy to be damaged, easy to maintain, and can withstand pressure. Flat-plate solar collectors have significant advantages in this respect, while vacuum tube, Neither heat pipe nor U-tube solar collectors are suitable for such large industrial applications

For example, vacuum tube solar collectors have an average annual damage rate of 8‰, and in the entire collector system, the rupture of one tube will lead to the breakdown of the entire system

[0009] In summary, various solar collectors currently used have defects of one kind or another in terms of frost resistance, thermal efficiency, and work reliability, which makes the The application is greatly restricted, which reduces the promotion and development of solar energy utilization

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