CN103075826A - Solar netting wire heat absorber - Google Patents
Solar netting wire heat absorber Download PDFInfo
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- CN103075826A CN103075826A CN2013100310361A CN201310031036A CN103075826A CN 103075826 A CN103075826 A CN 103075826A CN 2013100310361 A CN2013100310361 A CN 2013100310361A CN 201310031036 A CN201310031036 A CN 201310031036A CN 103075826 A CN103075826 A CN 103075826A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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Abstract
The invention provides a solar heat absorber capable of stereoscopically absorbing solar energy and relates to a solar netting wire heat absorber. The solar netting wire heat absorber is characterized by comprising a metal net and a metal wire layer, wherein a combination mode of the metal net and the metal wire layer can be as follows: one layer of metal net and one layer of metal wire layer are arranged, or an upper layer of metal net and a lower layer of metal net as well as one metal wire layer clamped therebetween are arranged; and the metal wire layer is formed by uniformly laying bulk metal wires. Sunlight passes through gaps among the netting net wires to irradiate into the whole netting wire heat absorber to form a stereoscopic heat absorbing effect, the heat absorbing area is improved by nearly 10 times, heated air is not easy to flow in the metal wire layer, and therefore the convection heat loss and the radiant heat loss are greatly reduced.
Description
Technical field
The present invention relates to the solar heat collector solar absorber, particularly a kind of solar absorber of twine structure.
Background technology
The used solar absorber of solar thermal collector mainly is two kinds at present, plate type solar absorber and electron tubes type absorber, comparatively speaking, the flat absorber structure that flat-plate solar collector is used is simple, reliable, with low cost, heat flow density is lower, and is safe and reliable, compares with the vacuum pipe solar absorber, it has the characteristics such as bearing capacity is strong, and endotherm area is large.But the plate type solar absorber also exists problem, and at first, endotherm area is limited, and heat absorption capacity is not high.The area of dull and stereotyped absorber has much, and endotherm area is exactly much, and the volume of solar thermal collector can not be too large, defines the area of dull and stereotyped absorber, also just limited endotherm area; Secondly, convection current heat waste and radiation heat loss are larger, and heat absorption efficiency is not high.Although present flat absorber all improves the heat absorption efficiency of absorber plate with selective coating, but after dull and stereotyped absorber temperature raises, cross-ventilation heat waste and radiation heat loss also can increase, can only be by improving thermal insulation separation thermosphere material or thickening glass cover-plate and setting up transparent honeycomb and reduce heat waste; Moreover photo-thermal conversion efficiency is subjected to absorber plate material and structure influence larger, in order to improve conversion efficiency, can only select expensive material and complicated structure, and processing cost is very high, and difficulty of processing is very large.
Improve the heat absorption efficiency of solar thermal collector, unique effective way is to reduce as far as possible convection current heat waste and radiation heat loss when keeping gathering solar energy to greatest extent, in order to reach this purpose, except the parts such as the shell that improves solar thermal collector, transparent cover plate, sealing, the most effective way is to improve solar absorber, the heat absorption capacity of solar absorber itself is improved, and heat waste reduces.
Summary of the invention
The invention provides a kind of solar absorber of energy cubic absorption solar energy, can increase endotherm area, improve photo-thermal conversion efficiency, can reduce convection current heat waste and radiation heat loss again, difficulty of processing is little, and production cost is lower.
The present invention is a kind of solar energy twine absorber, it is characterized in that comprising wire netting and metal wire layer, the combination of wire netting and metal wire layer can be layer of metal net and one metal wire layer layer, double layer of metal net and therebetween one metal wire layer layer about also can being, metal wire layer be formed by bulk wire uniform spreading wadding.
The invention has the beneficial effects as follows and improved about 10 times heat absorption and the heat transfer gross area, improved heat-transfer effect, also greatly suppressed convection current heat waste and radiation heat loss simultaneously, increased heat storage capacity, have obvious solar energy heat absorbing effect.
Description of drawings
Fig. 1, solar energy twine absorber side cutaway view
Fig. 2, solar energy twine absorber front view
Being labeled as among the figure: 1, wire netting 2, metal wire layer
The specific embodiment
Fig. 1～Fig. 2 is a kind of preferred forms of the present invention, now is described with reference to the accompanying drawings technical scheme of the present invention.The described solar energy twine of present embodiment absorber is by double layer of metal net 1 and middle metal wire layer 2 form up and down.Wire netting 1 is made by ordinary steel wire in the present embodiment.Wire becomes irregular bulk, and spreads uniformly wadding formation metal wire layer 2 in the middle of double layer of metal net 1.The shape of described solar energy twine absorber can be made according to demand the various shapes such as quadrangle, triangle, hexagon.
Described solar energy twine absorber can be used for being used for absorbing solar energy, and solar energy being converted into heat energy in the solar facilities such as solar thermal collector.Solar light irradiation is on described solar energy twine absorber the time, absorbed by wire netting 1 and metal wire layer 2 and converts heat to.Between the wire of metal wire layer 2 slit is arranged, sunshine can pass these slits and shine each position in the metal wire layer 2, and heated air irradiation back and forth between wire, mutually heat absorption, this has just formed the difference of the present invention and ordinary flat absorber, i.e. three-dimensional heat absorption rather than plane heat absorption.The gross area wiry in the metal wire layer 2 has just consisted of an area that solar energy twine absorber absorbs solar energy, and this area is about ten times of the solar energy twine absorber area of plane.So the endotherm area of described solar energy twine absorber is about ten times of flat absorber, its heat absorption capacity improves greatly.
The metal wire layer 2 of described solar energy twine absorber is made of the bulk wire, slit between the wire is very little, air can't carry out heat convection basically in the narrow slit of metal wire layer 2, can only conduct to dispel the heat by air molecule, and the thermal conductivity factor of air is when being 0.02 kilocalorie/meter ℃, also lower than polyurethane heat insulation material, this has suppressed the free convection heat loss greatly.The twine structure of described solar energy twine absorber has also reduced the outside radiation heat loss of absorber simultaneously.
Claims (1)
1. solar energy twine absorber, it is characterized in that comprising wire netting and metal wire layer, the combination of wire netting and metal wire layer can be layer of metal net and one metal wire layer layer, double layer of metal net and therebetween one metal wire layer layer about also can being, metal wire layer be formed by bulk wire uniform spreading wadding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100310361A CN103075826A (en) | 2013-01-28 | 2013-01-28 | Solar netting wire heat absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100310361A CN103075826A (en) | 2013-01-28 | 2013-01-28 | Solar netting wire heat absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103075826A true CN103075826A (en) | 2013-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100310361A Pending CN103075826A (en) | 2013-01-28 | 2013-01-28 | Solar netting wire heat absorber |
Country Status (1)
| Country | Link |
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| CN (1) | CN103075826A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2129904Y (en) * | 1992-07-16 | 1993-04-14 | 陈嘉德 | Solar air heater |
| JP2007294288A (en) * | 2006-04-26 | 2007-11-08 | Nippon Oil Corp | Dye-sensitized solar cell |
| CN101987267A (en) * | 2010-12-09 | 2011-03-23 | 王东伟 | Method for producing wire mesh stainless steel fibrofelt compound filter disc |
| CN203083178U (en) * | 2013-01-28 | 2013-07-24 | 山西明浩锦达新能源有限公司 | Solar mesh heat absorber |
-
2013
- 2013-01-28 CN CN2013100310361A patent/CN103075826A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2129904Y (en) * | 1992-07-16 | 1993-04-14 | 陈嘉德 | Solar air heater |
| JP2007294288A (en) * | 2006-04-26 | 2007-11-08 | Nippon Oil Corp | Dye-sensitized solar cell |
| CN101987267A (en) * | 2010-12-09 | 2011-03-23 | 王东伟 | Method for producing wire mesh stainless steel fibrofelt compound filter disc |
| CN203083178U (en) * | 2013-01-28 | 2013-07-24 | 山西明浩锦达新能源有限公司 | Solar mesh heat absorber |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130501 |