Separated-type solar vacuum heat collecting and heat exchanging system
A vacuum heat collection and heat exchange system technology, applied in solar heating systems, solar heat collectors, solar heat collectors using working fluids, etc., can solve the problem of low heat transfer efficiency of heat transfer media, inability to use concentrated high-temperature utilization, etc. problems, to achieve high heat collection efficiency, improve the efficiency of cold and heat convection circulation, and improve the effect of heat transfer efficiency
Inactive Publication Date: 2012-09-12
崔建伟
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Problems solved by technology
However, the existing solar medium and high temperature vacuum collectors using heat transfer medium all use solar vacuum tubes with one end open, and all circulation channels are arranged at one end of the solar vacuum tubes. The biggest drawback of this structure is: different heat transfer The heat medium enters and exits from the same end of the vacuum tube. Because there is no split flow, the heat transfer efficiency of the heat transfer medium is low, and it cannot be used in a centralized manner, which is the key bottleneck affecting the high temperature utilization of solar vacuum tubes.
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[0028] Such as figure 1 Shown is a schematic diagram of the assembly of the split-type solar vacuum heat collection and heat exchange system of the present invention. It includes at least one set of upper and lower heat collecting boxes 3 and 4 arranged up and down, through-type solar vacuum heat collecting tubes 2 arranged side by side and in parallel between the upper and lower heat collecting boxes, and the upper and lower heat collecting boxes are connected to the heat exchanger 8 It constitutes the heat collection and heat exchange return channel, and the heat transfer medium with high heat resistance is encapsulated in the upper and lower heat collection boxes. The example heat transfer medium given by the present invention is heat transfer oil, including the following market brands: Wanda RADCO synthetic heat transfer oil Xceltherm-HT, Mobiltherm 603 and 605, Total heat transfer oil SERIOLA 3120, etc. ≤350°C.
[0029] figure 1 The upper and lower heat collecting tank...
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The invention provides a separated-type solar vacuum heat collecting and heat exchanging system which comprises at least one group of heat collecting tanks, through-type solar vacuum heat collecting pipes, and heat collecting and heat exchanging backflow channels, wherein the at least one group of heat collecting tanks are arranged up and down; the through-type solar vacuum heat collecting pipes are arranged between the heat collecting tanks up and down in parallel; the heat collecting and heat exchanging backflow channels are formed by the heat collecting tanks up and down and a heat exchanger; and high-heat-resistant heat transfer media are packaged in the heat collecting tanks up and down. According to the invention, the cold and hot convective circulating efficiency of the solar vacuum pipes is improved greatly, and a plurality of groups of vacuum heat collecting pipes can be connected in series for centralized utilization, thus possibility is created for medium-temperature and high-temperature solar energy application industrially. The whole system has the advantages of high heat collecting efficiency, rapid temperature rising and high heat conduction efficiency.
Description
technical field [0001] The invention relates to a split solar vacuum heat collection and heat exchange system, in particular to a medium and high temperature vacuum heat collection and heat exchange system utilizing solar energy, which belongs to the field of solar energy heat collection and heat exchange technology and equipment. Background technique [0002] Solar water heaters are loved by the general public as a daily necessities that provide cheap heat sources. At present, glass vacuum heat collecting tubes have been widely used in solar water heaters. In order to further improve the heat collection efficiency of solar heat collector tubes, the Chinese patent discloses a series of technical solutions for solar energy medium and high temperature heat collector tubes with internal light concentration and capacity reduction and the production method, mainly from the light concentration and capacity reduction to increase the heat exchange temperature of the vacuum tube and i...
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IPC IPC(8): F24J2/30F24J2/46F24S10/30
CPCY02E10/44
Inventor 崔建伟
Owner 崔建伟