CN101943485A - Method for collecting heat by utilizing black solid particles - Google Patents
Method for collecting heat by utilizing black solid particles Download PDFInfo
- Publication number
- CN101943485A CN101943485A CN2009100171108A CN200910017110A CN101943485A CN 101943485 A CN101943485 A CN 101943485A CN 2009100171108 A CN2009100171108 A CN 2009100171108A CN 200910017110 A CN200910017110 A CN 200910017110A CN 101943485 A CN101943485 A CN 101943485A
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- heat
- solid black
- coloured particles
- heat exchange
- black coloured
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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
- Y02E10/44—Heat exchange systems
Abstract
The invention discloses a method for collecting heat by utilizing black solid particles. The method is characterized in that: the black solid particles serving as photo-thermal conversion working mediums are freely spread or stacked on a heat-insulation material which is provided with a non-light tight heat-preservation outer cover; a heat exchange cavity is reserved in or on the backlight surface of the photo-thermal conversion working medium black solid particle; and a medium in the heat exchange cavity is liquid or a gas. Or the method is characterized in that: the black solid particles serving as the photo-thermal conversion working mediums are contained in a non-light tight container; a non-light tight heat-insulation layer is arranged outside the sunny slope of the non-light tight container; a heat-insulation material layer is arranged outside the backlight surface of the non-light tight container; the heat exchange cavity is reserved in or on the backlight surface of the photo-thermal conversion working medium black solid particle; and the medium in the heat exchange cavity is the liquid or the gas. The method has the advantages of large heat exchange area, simple manufacturing process, low cost, easy large-scale popularized production and the development of a new concept on solar utilization.
Description
Technical field
The invention belongs to field of solar energy utilization, relate to a kind of solid black coloured particles heat collecting method that utilizes.
Background technology
At present, solar energy utilizes the main several heat collectors in aspect, as glass tube with vacuum, several forms such as flat and focusing, all be to lean against selection on the tube wall and non-selective heat absorbing coating as photothermal transformation layer, absorptivity to sunshine is not high, be embodied in that heat exchange specific area (interface) is little, thermal capacitance is little, coating requires manufacture craft height, cost height, is difficult to extensive popularization production.
The heat collector of prior art, as electron tubes type, the medium of the inside is water or heat-conducting liquid, exist winter low temperature be afraid of to freeze, frangible, high temperature easily produces steam, and is strict to air-proof condition.Utilize that black liquor does that heat absorption working medium exists still also that low temperature is afraid of to freeze, easily vaporization of high temperature, oxidation deterioration, perishable, lack problems such as long-acting stability.
Summary of the invention
Technical problem to be solved by this invention provides a kind of method of utilizing solid black coloured particles thermal-arrest, and the heat exchange specific area is big, and manufacture craft is simple, cost is low, is easy to extensive popularization production.
A kind of method of utilizing solid black coloured particles thermal-arrest of the present invention, it is characterized in that utilizing the solid black coloured particles freely to spread out or be deposited on the heat-insulating material as light-heat transformation working medium, have the transparent heat insulating outer cover on it, in solid black coloured particles light-heat transformation working medium or shady face be equipped with the heat exchange cavity, the medium in the heat exchange cavity is liquid or gas.Or, utilize the solid black coloured particles to be contained in the light transmission container as light-heat transformation working medium, outside the sunny slope of light transmission container, have the printing opacity heat insulation layer, the shady face of light transmission container is provided with insulation material layer outward, in solid black coloured particles light-heat transformation working medium or shady face be equipped with the heat exchange cavity, the medium in the heat exchange cavity is liquid or gas.
The solid black coloured particles can be itself to be the inorganic material of black, as cupric oxide, coal dust, graphite powder, active carbon, carbon black, Iron Ore Powder etc.Or the powder (sand) of dyeing, as natural sandstone, ore and metal or metal oxide and nonmetallic powder or the husky dried particles of dyeing, the thermal conductivity factor of working medium, enthalpy, hot melt and select the material and the quantity of working material as required.
Dyeing can be divided into dry dyeing and wet method dyeing according to the prior art mode.As dry after dyeing with high blackness burnt black ink with 20-40 purpose Haihe River sand.Dry dyeing: mix with a certain amount of portland cement in right amount with 1500 purpose graphite powders, disperseing to stir after stain by dry method is black powder.
Because enthalpy, hot melt, the thermal conductivity factor difference of various materials can be as required, moment heat exchange or have the requirement of certain amount of stored heat to select the material consumption of solid black coloured particles and grain diameter etc.Thermal conductivity factor can be selected between 401-0.1W/ (mK), and therefore alternative scope wide spectrum is big to the range of choice of various economical costs, and the material that selection just needs is easy.
The heat exchange cavity can be the inorganic metal material, also can be ceramic material or organic plastics tubing; Can be pipe, also can be flat tube, bellows etc.Can be with red copper high efficient heat exchanging cavity when being contained in light transmission container.The heat exchange cavity (cavity) of big heat exchange area places among the solid black coloured particles, also can place outside the solid shady face.
The printing opacity heat insulation layer is vacuum layer or air layer, is formed by the space between light transmissive material and the solid black coloured particles, and light transmissive material can be selected high light-passing plastic diaphragm for use, as PVC, PE, PET, PC, EVA etc., glass single-layer or hollow, vacuum glass.
Advantage of the present invention: the heat exchange specific area is big, and manufacture craft is simple, cost is low, is easy to extensive popularization production.Can make the solar energy utilization be generalized to industry-by-industry and field easily, thoroughly change people just associate glass-vacuum tube to the solar energy utilization limitation, this conceptual supplementary energy becomes the main flow energy at present, has opened up the new ideas that solar energy utilizes.Be widely applicable for large-sized solar anti-season heat accumulation, building solar integration engineering.Economical cost multiple choices class can be developed the solar energy heat collector of various uses, environmental protection, safety, stable.
Description of drawings
Fig. 1 is one of structural representation of the present invention;
Fig. 2 is two of a structural representation of the present invention;
Fig. 3 is three of a structural representation of the present invention.
Among the figure: 1 transparent heat insulating outer cover, 2 solid black coloured particles, 3 heat exchange cavitys, 4 insulation material layers, 5 printing opacity heat insulation layers, 6 light transmission containers, 7 columns
The specific embodiment
Below in conjunction with the embodiment description of drawings, the present invention is not limited to illustrated case.
As Fig. 1, the present invention utilizes the method for solid black coloured particles thermal-arrest, and solid black coloured particles 2 freely is deposited on the insulation material layer 4, has transparent heat insulating outer cover 1 on it, is the transparent heat insulating layer between transparent heat insulating outer cover 1 and the solid black coloured particles.Be equipped with adiabatic heat exchange cavity (heat exchanger tube) 3 in solid black coloured particles light-heat transformation working medium, the medium in the heat exchange cavity is liquid or gas.
As Fig. 2, utilize solid black coloured particles 2 to be contained in the light transmission container 1 as light-heat transformation working medium, have printing opacity heat insulation layer 5 at the sunny slope of light transmission container, the end face of printing opacity heat insulation layer 5 also is that the light transmission container shell is a light transmissive material.The shady face of light transmission container is provided with insulation material layer 4 outward, is equipped with heat exchange cavity 3 at solid black coloured particles light-heat transformation working medium shady face, and the medium in the heat exchange cavity 3 is liquid or gas.Be added with support post 7 in the light transmission container.
As Fig. 3, solid black coloured particles 2 freely is deposited on the insulation material layer 4, have arc transparent heat insulating outer cover 1 on it, be the transparent heat insulating layer between transparent heat insulating outer cover 1 and the solid black coloured particles, and be added with support post 7.Be equipped with adiabatic heat exchange cavity (heat exchanger tube) 3 in solid black coloured particles light-heat transformation working medium, the medium in the heat exchange cavity is liquid or gas.
Embodiment 1:
A kind of method of solid black coloured particles thermal-arrest of utilizing of the present invention is applied to floor file type large-sized solar accumulation of heat engineering.
Select the level land or the hillside fields face of sun repository to require to make smooth cement flooring, use the thick EPS warming plate of 20cm thereon, placing diameter on it is the plastic film capicitor (heat exchange cavity) of 20cm, and pipe is apart from 2-5cm, stack the solid black coloured particles thereon, total thickness 21-25cm.The thick heat absorption working material of 1-5cm is just arranged above the pipe.Medium can be a water in the pipe.Its above solid high transparent insulating cover can be awning film, one deck and multilayer also can be the canopy covers of hollow or vacuum glass.Canopy cover and the distance of heat absorption between the working medium between 1-50cm, the extinction solid black coloured particles area of the big I of canopy cover base area face and deciding.Patrol and examine the wide any length of 5m for convenience.Leave the pavement between the per pass thermal-arrest band, also can make wide arbitrarily.In the middle of heat absorption bed band, establish the upright supports of some.
Present embodiment is applicable to large-scale anti-season accumulation of heat engineering.
Embodiment 2:
Above-mentioned heat exchange cavity can change iron or aluminum tubes into.Heat transferring medium is an air.Directly carry heating with blower fan.This kind mode can be selected the big material of heat storage coefficient, can help long-time more stable supply.
Embodiment 3:
During the solar building integrated engineering of utilizing that a kind of solid black coloured particles thermal-arrest of the present invention makes, can make is external wall insulation, is again the modular ultra-thin plate type solar collector plate of decoration of exterior wall link plate.With the thick aluminium alloy hollow plate of 1-1.5cm as the heat exchange cavity, be compounded with the thick PU foam insulation of 2.5-3.0cm with shady face and edge, another side is compounded with and has grid and the high printing opacity thin plate of thickness 0.5cm (glass) or the plastic, transparent sheet splendid attire cavity as solid black coloured particles working medium.The thick hollow vacuum heat-insulation layer of one or more layers 1-2cm is arranged.Silicon boron glass or plastic material gross thickness are 5-7cm, and specification can be made 2 meters * any length.
This heat collector is an external wall insulation, is again the decoration of exterior wall link plate.When the roofing or roofing board, both substituted roofing tile and also substituted waterproof material, real molten with building is one.The heat exchange cavity is connected with into water and delivery port.
Present embodiment is suitable for building and solar integration centralized heating project.
Claims (4)
1. method of utilizing solid black coloured particles thermal-arrest, it is characterized in that utilizing the solid black coloured particles freely to spread out or be deposited on the heat-insulating material as light-heat transformation working medium, have the transparent heat insulating outer cover on it, in solid black coloured particles light-heat transformation working medium or shady face be equipped with the heat exchange cavity, the medium in the heat exchange cavity is liquid or gas.
2. method of utilizing solid black coloured particles thermal-arrest, it is characterized in that utilizing the solid black coloured particles to be contained in the light transmission container as light-heat transformation working medium, sunny slope at light transmission container has the printing opacity heat insulation layer, the shady face of light transmission container is provided with insulation material layer outward, in solid black coloured particles light-heat transformation working medium or shady face be equipped with the heat exchange cavity, the medium in the heat exchange cavity is liquid or gas.
3. the method for utilizing solid black coloured particles thermal-arrest according to claim 2 is characterized in that described printing opacity heat insulation layer is vacuum layer or air layer, is formed by the space between light transmissive material and the solid black coloured particles.
4. the method for utilizing solid black coloured particles thermal-arrest according to claim 1 and 2, it is characterized in that described solid black coloured particles is for itself being the inorganic material of black, or natural sandstone, ore, metal, metal oxide or the nonmetallic powder of dyeing or husky dried particles, granularity is between the 2-1500 order.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100171108A CN101943485A (en) | 2009-07-09 | 2009-07-09 | Method for collecting heat by utilizing black solid particles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100171108A CN101943485A (en) | 2009-07-09 | 2009-07-09 | Method for collecting heat by utilizing black solid particles |
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| Publication Number | Publication Date |
|---|---|
| CN101943485A true CN101943485A (en) | 2011-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100171108A Pending CN101943485A (en) | 2009-07-09 | 2009-07-09 | Method for collecting heat by utilizing black solid particles |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2319283A7 (en) * | 1975-07-25 | 1977-02-18 | Alumetal | LIGHT ALLOY SOLAR COLLECTOR, SELECTIVE SURFACE |
| US4027652A (en) * | 1975-04-15 | 1977-06-07 | Frank Collura | Solar energy collector |
| JPS5420437A (en) * | 1977-07-15 | 1979-02-15 | Agency Of Ind Science & Technol | Solar light absorption surface |
| CN2869706Y (en) * | 2006-03-03 | 2007-02-14 | 梁德胜 | Solar light-absorbing plate |
| CN101413721A (en) * | 2007-10-18 | 2009-04-22 | 周婕 | Glass vacuum tube of solar heat collector |
| CN101424454A (en) * | 2007-10-30 | 2009-05-06 | 李德杰 | Solar water tank |
-
2009
- 2009-07-09 CN CN2009100171108A patent/CN101943485A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4027652A (en) * | 1975-04-15 | 1977-06-07 | Frank Collura | Solar energy collector |
| FR2319283A7 (en) * | 1975-07-25 | 1977-02-18 | Alumetal | LIGHT ALLOY SOLAR COLLECTOR, SELECTIVE SURFACE |
| JPS5420437A (en) * | 1977-07-15 | 1979-02-15 | Agency Of Ind Science & Technol | Solar light absorption surface |
| CN2869706Y (en) * | 2006-03-03 | 2007-02-14 | 梁德胜 | Solar light-absorbing plate |
| CN101413721A (en) * | 2007-10-18 | 2009-04-22 | 周婕 | Glass vacuum tube of solar heat collector |
| CN101424454A (en) * | 2007-10-30 | 2009-05-06 | 李德杰 | Solar water tank |
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Application publication date: 20110112 |