Photo-thermal photovoltaic coupling energy-supply free-tracking solar condenser

A technology of solar concentrators and photothermal photovoltaics, applied in the directions of solar collectors, solar collector safety, solar collectors using working fluids, etc., can solve the problem of increasing the construction cost and output of solar concentrating utilization systems Problems such as poor energy stability and single output energy type have achieved the effect of zero-energy solar thermal photoelectric applications, high-efficiency coupling, and broad application prospects

Pending Publication Date: 2019-09-20
内蒙古天之风科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, most solar concentrators require high tracking accuracy and need to track the sun in real time, which increases the construction cost, maintenance cost and total power consumption of the solar concentrator utilization system
Although tracking-free solar concentrators have the characteristics of large receiving half-angle, no moving parts, simple installation of heat exchange pipelines, low requirements for electric energy and other infrastructure, and are suitable for medium and low temperature applications, the output energy stability is poor within a one-year working cycle. , and

Method used

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  • Photo-thermal photovoltaic coupling energy-supply free-tracking solar condenser

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Effect test

Embodiment 1

[0029] This embodiment provides a photothermal photovoltaic coupling energy supply tracking-free solar concentrator, which can realize the joint energy supply of non-effective concentrating light power generation and concentrating light heating of the non-tracking concentrator; the solar concentrator can be used in Winter building solar heating system, greenhouse heating system, industrial heat supply system, etc.

[0030] Such as figure 1 As shown, the tracking-free solar concentrator includes: a solar concentrator 2 , a glass vacuum tube 11 , a solar cell assembly, a glass cover plate 7 and a support 10 .

[0031] Wherein the solar concentrator 2 is a trough-type composite multi-curved solar concentrator, including two sections of semi-parabolic reflectors 18 with the same structure and two sections of involute reflectors 19 with the same structure; the parabolic reflector means that the reflector is a semi-parabola It is obtained after extending a certain length. The invol...

Embodiment 2

[0043] On the basis of the above-mentioned embodiment 1, in order to realize the automatic defrosting function, a hot air channel 17 and a micro-heat exchange channel 4) are further provided, specifically:

[0044] Each solar cell module is formed by back-to-back connection of solar cell panel A5 and solar cell panel B3; wherein solar cell panel A5 and solar cell panel B3 are arranged in a dislocation position, solar cell panel A5 is snapped into the card slot 20, and the solar cell panel There is a gap between B3 and the end face of the card slot 20 to form a hot air channel 17; the gap between the solar panel A5 and the back of the solar panel B3 forms a micro-heat exchange channel 4, which can realize natural convection heat exchange of the internal air.

[0045] At the same time, the solar concentrator 2 is provided with a hot air outlet 8 and a plurality of ventilation holes 9, and the hot air generated by the solar cell module passes through the hot air channel 17, and is...

Embodiment 3

[0049] On the basis of the above-mentioned embodiment 1 or embodiment 2, in this embodiment, solar cell modules of different sizes are arranged inside the glass cover plate 7, such as Figure 6 As shown, a double-sided solar cell assembly with a larger area is arranged in the center of the inner surface of the glass cover plate 7 on the concentrator 2, and the area of ​​the double-sided solar cell assembly is gradually reduced along the lateral direction of the concentrator 2, thereby improving The ability of the concentrator 2 to ablate frost, increase the proportion of the concentrator's external output electric energy, and reduce the amount of light that escapes from the concentrator.

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Abstract

The invention belongs to the technical field of solar condensation and heat utilization, and particularly relates to a photo-thermal photovoltaic coupling energy-supply free-tracking solar condenser. The condenser comprises a groove-type composite multi-curved-surface solar condenser, solar cell modules, a glass cover plate, a glass vacuum tube and a straight-through tube, wherein the straight-through tube is arranged in the glass vacuum tube as a receiving body. The groove-type composite multi-curved-surface solar condenser focuses sunlight incident into the condenser into the glass vacuum tube positioned in the focal spot position inside the condenser, so that spot light heat emission is realized; the sunlight not received by the glass vacuum tube is reflected to the solar cell modules positioned on the inner side of the glass cover plate, so that spot light electricity generation is realized; and meanwhile, two solar cell modules are arranged back-to-back in an up-and-down staggered mode to form a hot air channel, a micro heat exchange channel is formed between two plate backs, so that heat generated when the solar cell modules work is conveniently taken away by air in the micro heat exchange channel, and frost on the surface of the glass cover plate is melted, so that the effect of defrosting is achieved.

Description

technical field [0001] The invention relates to a solar concentrator, in particular to a photothermal photovoltaic coupling energy supply tracking-free solar concentrator, which belongs to the technical field of solar concentrator and photothermal photovoltaic applications. Background technique [0002] The use of solar concentrating technology can effectively overcome the shortcomings of the low grade of collected energy. On the one hand, it improves the energy flow density on the surface of the receiver, which is one of the prerequisites for the efficient application of solar thermal and photovoltaic technologies; on the other hand, it makes solar energy collection devices The heat dissipation area is smaller than the heat collection area, which is beneficial for improving the efficiency of solar heat utilization. [0003] However, most solar concentrators require high tracking accuracy and need to track the sun in real time, which increases the construction cost, maintena...

Claims

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Application Information

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IPC IPC(8): F24S10/40F24S10/70F24S23/74F24S25/61F24S40/10F24S40/70H02S20/20H02S40/44
CPCF24S10/40F24S10/70F24S23/74F24S40/70F24S40/10F24S25/61H02S40/44H02S20/20Y02E10/50Y02E10/44Y02E10/47Y02E10/60
Inventor 常泽辉郭帅军侯静李建业彭娅楠郑宏飞
Owner 内蒙古天之风科技有限责任公司
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