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Highly-efficient gas-water hybrid solar heat collector and application thereof

A solar heat collection and composite technology, applied in the field of energy saving, to achieve mature production technology, easy marketization, and solve the effects of overheating and idleness in summer

Inactive Publication Date: 2011-08-03
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a kind of high-efficiency air-water compound type solar thermal collector, to overcome the above-mentioned shortcoming of single-function solar water heater or air thermal collector, and existing two kinds of double-effect thermal collectors

Method used

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  • Highly-efficient gas-water hybrid solar heat collector and application thereof
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  • Highly-efficient gas-water hybrid solar heat collector and application thereof

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Embodiment Construction

[0028] Further describe the present invention below by example in conjunction with accompanying drawing.

[0029] Such as figure 1As shown, the outer frame 1 of the high-efficiency gas-water composite solar thermal collector described in this invention has a size of 2.1m×1.1m×0.15m. 4mm polystyrene boards are filled around and at the bottom as a heat insulation layer 2 for heat preservation, and then covered with a tube-sheet heat collector plate 3 . The heat collecting plate 3 is made of copper-chrome alloy, the surface coating is black chromium, its absorption rate is as high as 97% (±2%), but its emissivity is only 10% (±2%). The heat collecting plate 3 is spliced ​​by seven heat collecting strips with a length of 2m and a width of 0.14m. A water inlet header 10 with a root diameter of 0.2 m is connected to the water outlet header 4 . The outer frame 1 and the heat insulation layer 2 are wrapped with a whole double-layer plastic cloth, and the gaps of the equipment are c...

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Abstract

The invention belongs to the field of energy conservation, and in particular relates to a highly-efficient gas-water hybrid solar heat collector and application thereof. In the invention, the form of a traditional panel type solar water heater is utilized, a full copper heat collecting plate is formed by splicing tube plate type heat collecting strips, a secondary tube at the back of each heat collecting strip is respectively connected with an upper main tube and a lower main tube, and a high-absorptivity and low-emissivity selective coating is sprayed on the front surface of each heat collecting strip. Simultaneously, a space between the heat collecting plate and a glass cover plate is taken as an air flow channel and is uniformly provided with four glass baffles such that the residence time of the air in the heat collector is prolonged and the air turbulence in a chamber is strengthened. When the highly-efficient gas-water hybrid solar heat collector is applied to a highly-efficient gas-water hybrid solar heat collecting system, hot water flows in copper tubes at the back of the heat collecting plate, the air flows in the chamber between the heat collecting plate and the glass cover plate, and the hot water and the air are not interfered mutually, thus the highly-efficient gas-water hybrid solar heat collector disclosed by the invention can be used for heating water for daily life in summer, heating the air for heating or drying in winter and simultaneously heating the water and the air in spring and autumn, and the annual utilization rate of the heat collector is increased; in addition, the problem that a solar air heating system is overheat in summer is solved at the same time.

Description

technical field [0001] The invention belongs to the field of energy saving, and in particular relates to a high-efficiency gas-water composite solar heat collecting device and its application. Background technique [0002] At present, in the utilization of solar heat, solar water heaters have formed an industry. The annual output of solar water heaters in my country has reached tens of millions of square meters. At the same time, there are a large number of solar air collectors for drying or heating. But in the prior art, no matter solar water heater or solar air heat collector are used alone mostly, namely solar water heater can only supply hot water, and solar air heat collector can only supply hot air. [0003] In winter, the solar air collector heating system can well meet the heating demand of the building, but in the period when the building does not need to be heated, especially in summer, this system is not only unnecessary, but also causes the building to overheat, ...

Claims

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Application Information

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IPC IPC(8): F24J2/20F24J2/46F24D15/02F24S10/50
CPCY02E10/44Y02B10/20Y02B30/12
Inventor 石惠娴朱洪光黄超裴晓梅
Owner TONGJI UNIV
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