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Absorber plate core for flat plate solar thermal collector and solar thermal collector

A solar collector and heat absorbing panel core technology is applied to solar collectors, solar thermal energy, solar collectors using working fluid, etc. to achieve the effects of low processing cost, high thermal efficiency, and enhanced heat exchange

Inactive Publication Date: 2012-10-03
西藏自治区能源研究示范中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to address the deficiencies of the prior art and provide a heat-absorbing plate core that can significantly improve the heat exchange effect without significantly increasing the flow resistance.

Method used

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  • Absorber plate core for flat plate solar thermal collector and solar thermal collector
  • Absorber plate core for flat plate solar thermal collector and solar thermal collector
  • Absorber plate core for flat plate solar thermal collector and solar thermal collector

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Such as figure 1 Shown, process a kind of solar heat collector heat-absorbing plate core that the present invention provides.

[0032] figure 1 is the schematic diagram of the appearance of the heat-absorbing plate core; figure 2 is a schematic diagram of the longitudinal section of the heat-absorbing plate core. Heat-absorbing core 1 core cavity 11 has a size of 2000mm×1000mm, and the two sides are inlet frame 112 and outlet frame 113 respectively. A total of 8 rows and 11 rows of flow-around fins 12 are arranged on the inner surface of the first side wall 111 of the core cavity 11 . The first row of flow-around fins 12 is parallel to the inlet frame 112 with a distance of 50 mm.

[0033] image 3 is the schematic diagram of the cross-section of the heat-absorbing plate core. The flow-around fins 12 each have a length of 100 mm to 200 mm, a thickness of 0.02 to 2 mm, and a height of 0.6 times the height of the inner cavity of the core cavity 11 .

[0034] In ea...

Embodiment 2

[0038]Process a kind of solar heat collector heat-absorbing plate core that the present invention provides, and it is no longer repeated with embodiment one, and its difference is:

[0039] In each row of flow-around fins 12, the rotation angles α of the second to fifth pieces of flow-around fins 12 increase progressively, which are 2°, 3°, 4°, and 5° respectively.

Embodiment 3

[0046] Such as Figure 6 , Figure 7 As shown, a solar collector is processed.

[0047] Figure 6 is a schematic diagram of the appearance of the solar collector; Figure 7 yes Figure 6 A-A cut-away diagram. The solar heat collector is a flat plate heat collector, the second side wall 115 of the heat-absorbing plate core 1 is opposite to the first side wall 111, and the second side wall 115 of the heat-absorbing plate core 1 is placed in the shell 5 upwards, and the shell 5 is open ; The outer surface of the second side wall 115 is coated with a selective coating to form the heat collecting plate 2; the glass cover plate 3 is covered on the shell 5 and sealed; the transparent cover plate 3 is adjacent to the heat collecting plate 2, and there is a heat insulating layer in between 4. The heat-absorbing plate core 1 is also connected with necessary pipelines; the collector inlet 6 passes through the shell 5 and opens at the lower part of the inlet frame 112, and the heat c...

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PUM

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Abstract

Aiming at the defect in the prior art that as reinforced heat exchange is adopted to improve the flow of a working medium for heat exchange of the plate core as far as possible, the higher flow resistance reduces the energy input-output ratio of the thermal collector, the invention discloses an absorber plate core suitable for a solar thermal collector, and provides an absorber plate core capableof remarkably improving the heat exchange effect without obviously increasing the flow resistance. The product includes a plate core cavity and streaming fins arranged in M rows and N lines, wherein in each row, the first streaming fin is parallel to the inlet frame of the plate core cavity, and the second streaming fin to the No. N streaming fin are rotated by the rotation angle alpha to the frame of the outlet side of the plate core cavity and take the peaks of the second streaming fin to the No. N streaming fin as centers; and in each line, the second streaming fin to the No. 5n streaming fin are lifted equidistantly, and the No. 5n+1 streaming fin to the No. N streaming fin are lowered equidistantly. The invention further provides a flat plate solar thermal collector installed with the absorber plate core. The absorber plate core improves the heat exchange efficiency of the thermal collector through uniformly distributing flow rates of the heat exchange working medium in differentrunners of the absorber plate core.

Description

technical field [0001] The invention relates to a heat-absorbing plate core, in particular to a heat-absorbing plate core suitable for solar heat collectors, and belongs to the field of mechanical manufacturing. Background technique [0002] The core part of the solar energy utilization system is the collector. It is a special heat exchanger that converts solar radiation energy into heat energy of the working medium (liquid or gas). Flat-plate solar collectors are widely used all over the world because of their simplicity, low cost and easy installation. Ordinary flat-plate collectors are composed of glass cover plate, heat-absorbing plate core, aluminum alloy frame, foam board (or rock wool) insulation layer, etc. The radiant energy of sunlight produces visible light and near-infrared rays, which pass through the glass cover of the flat-plate collector and enter the interior of the flat-plate collector. When encountering the colored coating of the heat exchanger, the ligh...

Claims

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Application Information

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IPC IPC(8): F24J2/46F24J2/20F24S10/50
CPCY02E10/44
Inventor 洪亮玉珍达娃拉姆王守彪仓啦
Owner 西藏自治区能源研究示范中心
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