CN106091078A - A kind of high efficiency solar energy heating system of low-loss - Google Patents
A kind of high efficiency solar energy heating system of low-loss Download PDFInfo
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- CN106091078A CN106091078A CN201610426075.5A CN201610426075A CN106091078A CN 106091078 A CN106091078 A CN 106091078A CN 201610426075 A CN201610426075 A CN 201610426075A CN 106091078 A CN106091078 A CN 106091078A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D7/00—Central heating systems employing heat-transfer fluids not covered by groups F24D1/00 - F24D5/00, e.g. oil, salt or gas
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/10—Liquid materials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
- F24S23/71—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with parabolic reflective surfaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S60/00—Arrangements for storing heat collected by solar heat collectors
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/14—Solar energy
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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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- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sustainable Energy (AREA)
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a kind of high efficiency solar energy heating system of low-loss, comprising: solar energy acquisition system, it is assembled scattered solar energy and changes into heat energy；Energy-storage system, it forms energy storage circulation line, energy-accumulating medium absorption heat energy with solar energy acquisition system；Heating system, it has hot thermal storage tank and heat dissipation equipment, and energy storage circulation line communicates through hot thermal storage tank, in order to heat the heating medium in hot thermal storage tank；Middle low-temperature generating system, it has low boiling point working medium, the heat of low boiling point working medium absorption energy-accumulating medium；Wherein, the medium that heats includes Polyethylene Glycol and the mannitol of 0.2～0.5wt% of bromination cerium, 0.3～the 0.8wt% of the samaric bromide of lanthanum bromide, 20～40wt%, 20～the 40wt% of 30～50wt%.The present invention is reasonable in design, and energy-saving effect is obvious, and efficiency is high, and the design of heat-insulation layer can ensure antifreeze in the case of the safe operation and accidental power failure of Cold Winter of system.
Description
Technical field
The present invention relates to field of solar energy utilization.It is more particularly related to a kind of low-loss, the high efficiency sun
Can heating system.
Background technology
Currently, energy problem has become as one of principal element of restriction countries in the world development, and China is as energy-consuming
Big country, along with China's expanding economy and the increase of population, the energy and environmental problem are outstanding day by day.On the one hand China per capita energy
Owning amount is relatively low, on the other hand with coal be master unreasonable energy resource structure and the environmental disruption that brought of the high energy consumption of building
Bringing huge pressure for sustainable development, thus, energy-saving and cost-reducing and regenerative resource utilization causes the wide of people
General attention.
Solar energy heating system refers to the thermal source using solar energy as heating system, utilizes solar thermal collector by solar energy
It is converted into heat energy, supplies the building warmings such as factory, residential building, school and annual other use hot system.Solar energy
System is that to utilize solar energy pollution-free, reproducible be resource, and service life, environment benefits and economic gains was equal typically more than 20 years
Clearly, and traditional danger burning coal heating stove carbon dioxide poisoning will not be produced, the accidents such as scald, heating also will not occur
Clean and safe, meets the demand of energy-saving and emission-reduction.
But, solar energy heating system also has weak point, mainly has: (1) arrive ground direct solar radiation energy because of
With alternately changing round the clock so that most of solar facilities cannot work at night, do not have the sun direct night for research
Radiate, scatter difficulty that is the faintest, that caused, it is necessary to study and be equipped with energy storage device, in order to when fine day solar energy
Collecting and store away, for night or overcast and rainy, but current energy storage device exists more, and thermal loss is big, the heat storage time
The problem such as short；(2) more solar energy is adopted and is used water as the medium that heats at present, improves room by water circulation in heat sink cavity
Interior temperature, but the start-up temperature of water is high, and the strong transmission of water must be over or reach 100 DEG C, and the startup of general hot-water heating rises warming the meridian
Crossing nearly 2h and can be only achieved room temperature, boiler needs to heat recirculated water substantial amounts of in pipeline, and energy resource consumption is big, and heating system
In the path length of circulating water flow warp, high-temperature water easily produces loss because of evaporation in flowing, need to often supplement moisture content in pipeline.
Summary of the invention
It is an object of the invention to solve at least the above and/or defect, and at least will be described later excellent is provided
Point.
It is a still further object of the present invention to provide a kind of high efficiency solar energy system of low-loss, it is obtained in that concentration
, the high-grade energy with high flux of heat density, with energy storage canister and and the radiator that solar energy acquisition system carries out heat exchange
The hot thermal storage tank of heat exchange is respectively provided with high heat preservation performance, can realize the continuous heat energy supply of 24h, and the start-up temperature of heating medium
Low, heat transfer rate is fast, significantly improves efficiency of energy utilization and the convenience of sun heating.
In order to realize according to object of the present invention and further advantage, it is provided that a kind of high efficiency solar energy of low-loss
Heating system, comprising:
Solar energy acquisition system, scattered solar radiation is gathered together and changes into heat energy by it；
Energy-storage system, it forms energy storage circulation line with described solar energy acquisition system, described energy storage circulation line sets
Having energy storage canister, energy-accumulating medium absorbs described heat energy and flows along described energy storage circulation line；
Heating system, it has hot thermal storage tank and heat dissipation equipment, described hot thermal storage tank and heat dissipation equipment via heating circulation
Pipeline is connected, and described energy storage circulation line communicates through described hot thermal storage tank, is situated between in order to heat the heating in described hot thermal storage tank
Matter；
Middle low-temperature generating system, it has low boiling point working medium, described middle low-temperature generating system and the formation of described energy storage canister
Electricity circulation line, the heat of described energy-accumulating medium in the described low boiling point working medium described power generation cycle pipeline of absorption；
Wherein, described heating medium includes the samaric bromide of lanthanum bromide, 20～40wt%, 20～the 40wt% of 30～50wt%
The Polyethylene Glycol of bromination cerium, 0.3～0.8wt% and the mannitol of 0.2～0.5wt%, by the lanthanum bromide of proper ratio, bromination
Samarium and the superconducting fluid of bromination cerium composition, can produce synergism, 25 DEG C of mass transfers i.e. starting temperature, temperature conduction speed each other
Degree is fast, and the interpolation of Polyethylene Glycol and mannitol can strengthen the hot mass transfer process of superconducting fluid further, and wherein, little molecular polyhydroxyl is sweet
Addition and the Polyethylene Glycol of dew alcohol with the use of, can obviously reduce the surface tension of superconducting fluid, improve superconducting fluid mobility and
Heat-conductive characteristic.
Preferably, wherein, described low boiling point working medium is selected from any one in pentane, isopentane, ethyl chloride, low boiling
Point medium, by absorbing the waste heat of energy-accumulating medium, produces the Steam Actuation steam turbine acting generating with elevated pressures.
Preferably, wherein, the temperature of the described energy-accumulating medium described middle low-temperature generating system of entrance is higher than 60 DEG C, to guarantee
The operational efficiency of middle low-temperature generating system.
Preferably, wherein, described energy storage canister, described hot thermal storage tank, be exposed to the external environment described energy storage circulation
The outer layer of pipeline, heating circulation line and power generation cycle pipeline is equipped with a heat-insulation layer, and described heat-insulation layer includes following weight portion
Material: the polyurethane of 75～85 parts, the ABS of 15～20 parts, the foaming agent of 3～8 parts, the chopped fiber of 8～10 parts, 4～6 parts receive
Rice magnesium oxide, the nano-calcium carbonate of 5～8 parts and the nano-cerium oxide of 3～5 parts；
It is excellent that the cellular insulant wherein prepared by polyurethane has that insulation effect is good, light weight, specific strength are big etc.
Good characteristic, the most also has a feature such as sound insulation, shockproof, electric insulation, solvent resistant, but there is also that resistance to elevated temperatures is poor, foam bone
Frame intensity and the problem such as toughness is on the low side, the most aging, acrylonitrile-butadiene propenyl benzene graft copolymer can show with being blended of polyurethane
Write and improve the toughness of insulation material, ageing-resistant performance and dimensional stability, high rigidity chopped fiber and elastomeric polyurethane formulation
Use the mechanical property that can obviously improve insulation material, improve the ability of its opposing deformation, additionally, after energy-accumulating medium absorbs heat energy
Temperature is up to 200～600 DEG C, and polyurethane heat insulation material is chronically under hot environment yielding, affect heat-insulation layer insulation and
Mechanical performance, nano magnesia, nano-calcium carbonate and nano-cerium oxide can be effectively improved the heat-resistant deformation of polyurethane insulation coating
And fire resistance, maintain heat insulation persistency and the stability of heat-insulation layer.
Preferably, wherein, described solar energy acquisition system has support and the butterfly optically focused being connected on described support
Mirror, wherein butterfly condenser lens uses parabola, scattered low energy densities can be gathered the focal point of minute surface, thus obtain collection
In, the high-grade energy with high heat flux.
Preferably, wherein, described support is prepared from by light weight, plasticity is strong and hardness is high aluminum yittrium alloy.
Preferably, wherein, described energy-accumulating medium is conduction oil, has homogeneous heating, energy-conservation and carry convenient advantage.
Preferably, wherein, any one in hydrogenated terphenyl, benzyl toluene or dibenzyl toluene of described conduction oil
Kind, there is preferable heat stability, heat conductivity and dispersion homogeneity.
Preferably, wherein, described chopped fiber includes the aramid fiber of glass fibre, 20～40wt% of 10～30wt%
With the asbestos fibre of 40～55wt%, the addition of three kinds of fibers can produce cooperative effect, both can strengthen cell wall, improves heat-insulation layer
Resistance to compression, pull resistance, can improve again the resistance to frost of heat-insulation layer, chemical-resistant reagent especially resistance to elevated temperatures, improve heat-insulation layer
Continue heat insulation effect.
Preferably, wherein, a length of the 40 of described chopped fiber～60mm, the length of fiber can not be long, otherwise easily that
This is wound around, and is not easily dispersed in polyurethane heat insulation material.
The present invention at least includes following beneficial effect:
(1) present invention uses butterfly condenser lens to be converged by solar radiation, and changes into heat energy, and it is high that it focuses on ratio,
Focus temp is up to 1500 degree；
(2) the integrated heating system of the present invention and middle low-temperature generating system, uses high temperature energy-storage medium to be used for heating, middle low temperature
Energy-accumulating medium waste heat for power supply cascaded utilization of energy pattern, be effectively increased to too can utilization ratio；
(3) the heat-insulation layer heat conductivity of the present invention is little, and good stability has excellent heat-resistant deformation and fire resistance, if
The temperature loss having the storage tank of this heat-insulation layer is less than 10% in 24h；
(4) the medium activated temperature of heating that the present invention uses is low, 25 DEG C of mass transfers i.e. starting temperature, and heat conduction velocity is fast,
Within about five minutes, radiator can be heated, significantly improve efficiency of energy utilization and the convenience of sun heating；
(5) present invention is reasonable in design, and energy-saving effect is obvious, and efficiency is high, and the design of heat-insulation layer can ensure that system is in cold
Antifreeze in the case of the safe operation in winter and accidental power failure.
Part is embodied by the further advantage of the present invention, target and feature by description below, and part also will be by this
Invention research and practice and be understood by the person skilled in the art.
Accompanying drawing explanation
Fig. 1 is the structural representation of solar energy acquisition system in one embodiment of the present of invention；
Fig. 2 is the schematic flow sheet of solar energy heating system in an alternative embodiment of the invention.
Detailed description of the invention
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to description literary composition
Word can be implemented according to this.
Should be appreciated that used herein such as " have ", " comprising " and " including " term do not allot one or many
Other element individual or the existence of a combination thereof or interpolation.
Fig. 1～Fig. 2 shows a kind of way of realization according to the present invention, including:
Solar energy acquisition system, scattered solar radiation is gathered together and changes into heat energy by it；
Energy-storage system, it forms energy storage circulation line with described solar energy acquisition system, described energy storage circulation line sets
Having energy storage canister, energy-accumulating medium absorbs described heat energy and flows along described energy storage circulation line；
Heating system, it has hot thermal storage tank and heat dissipation equipment, described hot thermal storage tank and heat dissipation equipment via heating circulation
Pipeline is connected, and described energy storage circulation line communicates through described hot thermal storage tank, is situated between in order to heat the heating in described hot thermal storage tank
Matter；
Middle low-temperature generating system, it has low boiling point working medium, described middle low-temperature generating system and the formation of described energy storage canister
Electricity circulation line, the heat of described energy-accumulating medium in the described low boiling point working medium described power generation cycle pipeline of absorption；
In this technical scheme, energy-accumulating medium absorb too can the acquisition system heat energy assembling and convert, through energy storage circulation
Pipeline communicates through described hot thermal storage tank, adds after the heating medium in hot thermal storage tank makes it heat up, returns to energy storage canister, energy-accumulating medium
Remaining temperature available in low-temperature electricity-generating unit meet other equipment of solar energy system and power, illuminate or the demand of household electricity.
Wherein, described heating medium includes the samaric bromide of lanthanum bromide, 20～40wt%, 20～the 40wt% of 30～50wt%
The Polyethylene Glycol of bromination cerium, 0.3～0.8wt% and the mannitol of 0.2～0.5wt%.
In examples detailed above, described low boiling point working medium is selected from any one in pentane, isopentane, ethyl chloride, low boiling
Medium, by absorbing the waste heat of energy-accumulating medium, produces the Steam Actuation steam turbine acting generating with elevated pressures.
In examples detailed above, described energy-accumulating medium enters the temperature of described middle low-temperature generating system and is higher than 60 DEG C, in guaranteeing
The operational efficiency of low-temperature generating system.
In examples detailed above, described energy storage canister, described hot thermal storage tank, the described energy storage circulation pipe that is exposed to the external environment
The outer layer of road, heating circulation line and power generation cycle pipeline is equipped with a heat-insulation layer, and described heat-insulation layer includes following weight portion material
Material: the polyurethane of 75～85 parts, the ABS of 15～20 parts, the foaming agent of 3～8 parts, the chopped fiber of 8～10 parts, the nanometer of 4～6 parts
Magnesium oxide, the nano-calcium carbonate of 5～8 parts and the nano-cerium oxide of 3～5 parts.
With reference to Fig. 1, solar energy acquisition system described in examples detailed above has support 1 and the butterfly being connected on described support 1
Formula condenser lens 2, described support 1 is prepared from by light weight, plasticity is strong and hardness is high aluminum yittrium alloy.
In examples detailed above, described energy-accumulating medium is conduction oil, and described conduction oil is selected from hydrogenated terphenyl, benzyl toluene or two
Any one in benzyl toluene.
In examples detailed above, described chopped fiber includes the carbon fiber and 40 of glass fibre, 20～the 40wt% of 10～30wt%
～the asbestos fibre of 55wt%, a length of the 40 of described chopped fiber～60mm.
In another example, each particular make-up of insulation material and corresponding comparative example thereof performance parameter as shown in the table:
Wherein, in upper table, the performance measurement of insulation material is measured the most at normal temperatures, and heat conductivity uses TC3000 to lead to
Being measured with type heat conductivity instrument, comprcssive strength uses BF-W compression Strength testing machine to be measured.
As can be seen from the above table:
Comparative example 1 is compared with example 1, it can be seen that chopped fiber and ABS (acrylonitrile-butadiene propenyl benzene graft copolymer)
Interpolation can be effectively improved the compressive property of heat-insulation layer, the reinforcement of foam framework also can improve the guarantor of heat-insulation layer to a certain extent
Temp effect is especially incubated persistency；
Comparative example 2 is compared with example 2, it can be seen that chopped fiber only selects single glass fibre, heat-insulation layer high temperature resistant
Performance reduce, after 24h in comparative example 2 storage tank the reduction amplitude of medium temperature apparently higher than example 2；
Comparative example 3 is compared with example 3, it can be seen that with the addition of of nanoparticle be effectively improved heat-insulation layer compressive property and
Heat insulation persistency；
Comparative example 4 is compared with example 4, it can be seen that only add single nano magnesia, the medium in storage tank when 8h
Temperature reduces amplitude and example 4 difference is little, but temperature there occurs significantly reduction when 16h and 24h, and the insulation of heat-insulation layer is held
Property and stability reduce for a long time.
In another example, the heating each particular make-up of medium and corresponding comparative example thereof performance parameter as shown in the table:
As can be seen from the above table:
Comparative example 5 is compared with example 5, and the coefficient of heat conduction of single lanthanum bromide superconducting fluid is significantly lower than by lanthanum bromide, bromination
Samarium and the superconducting fluid of bromination cerium composition；
Comparative example 6 is compared with example 6, lanthanum bromide, samaric bromide and bromination cerium with the use of playing preferable synergism,
Improve the heat conduction velocity of heating medium；
Comparative example 7 is compared with example 7, and in superconducting fluid, the interpolation of mannitol and Polyethylene Glycol can efficient hardening hot mass transfer mistake
Journey, puies forward high-octane utilization ratio；
Comparative example 8 is compared with example 8, and in superconducting fluid, being added on of mannitol can further enhance poly-second two to a certain extent
The hot mass transfer effect of alcohol.
Number of devices described herein and treatment scale are used to the explanation of the simplification present invention.Solar energy to the present invention
The application of heating system, modifications and variations will be readily apparent to persons skilled in the art.
Although embodiment of the present invention are disclosed as above, but it is not restricted in description and embodiment listed
Use.It can be applied to various applicable the field of the invention completely.For those skilled in the art, can be easily
Realize other amendment.Therefore, under the general concept limited without departing substantially from claim and equivalency range, the present invention does not limit
In specific details with shown here as the legend with description.
Claims (10)
1. the high efficiency solar energy heating system of low-loss, it is characterised in that including:
Solar energy acquisition system, scattered solar radiation is gathered together and changes into heat energy by it；
Energy-storage system, itself and described solar energy acquisition system formation energy storage circulation line, described energy storage circulation line is provided with storage
Energy tank, energy-accumulating medium absorbs described heat energy and also flows along described energy storage circulation line；
Heating system, it has hot thermal storage tank and heat dissipation equipment, described hot thermal storage tank and heat dissipation equipment via heating circulation line
Being connected, described energy storage circulation line communicates through described hot thermal storage tank, in order to heat the heating medium in described hot thermal storage tank；
Middle low-temperature generating system, it has low boiling point working medium, described middle low-temperature generating system and the formation generating of described energy storage canister and follows
Endless tube road, the heat of described energy-accumulating medium in the described low boiling point working medium described power generation cycle pipeline of absorption；
Wherein, described heating medium includes the bromine of the samaric bromide of lanthanum bromide, 20～40wt%, 20～40wt% of 30～50wt%
Change cerium, 0.3～the Polyethylene Glycol of 0.8wt% and the mannitol of 0.2～0.5wt%.
2. the high efficiency solar energy heating system of low-loss as claimed in claim 1, it is characterised in that described low boiling point working medium
Any one in pentane, isopentane, ethyl chloride.
3. the high efficiency solar energy heating system of low-loss as claimed in claim 1, it is characterised in that described energy-accumulating medium enters
Enter the temperature of described middle low-temperature generating system higher than 60 DEG C.
4. the high efficiency solar energy heating system of low-loss as claimed in claim 1, it is characterised in that described energy storage canister, institute
Outside the described energy storage circulation line, heating circulation line and the power generation cycle pipeline that state hot thermal storage tank, are exposed to the external environment
Layer is equipped with a heat-insulation layer, and described heat-insulation layer includes following weight portion material: the polyurethane of 75～85 parts, the ABS of 15～20 parts,
The foaming agent of 3～8 parts, the chopped fiber of 8～10 parts, the nano magnesia of 4～6 parts, the nano-calcium carbonate of 5～8 parts and 3～5
The nano-cerium oxide of part.
5. the high efficiency solar energy heating system of low-loss as claimed in claim 1, it is characterised in that described solar energy acquisition
System has support and the butterfly condenser lens being connected on described support.
6. the high efficiency solar energy heating system of low-loss as claimed in claim 5, it is characterised in that described support is by aluminum yttrium
Alloy is prepared from.
7. the high efficiency solar energy heating system of low-loss as claimed in claim 1, it is characterised in that described energy-accumulating medium is
Conduction oil.
8. the high efficiency solar energy heating system of low-loss as claimed in claim 7, it is characterised in that described conduction oil is selected from
Any one in hydrogenated terphenyl, benzyl toluene or dibenzyl toluene.
9. the high efficiency solar energy heating system of low-loss as claimed in claim 4, it is characterised in that described chopped fiber includes
The carbon fiber of glass fibre, 20～the 40wt% of 10～30wt% and the asbestos fibre of 40～55wt%.
10. the high efficiency solar energy heating system of low-loss as claimed in claim 4, it is characterised in that described chopped fiber
A length of 40～60mm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109439290A (en) * | 2018-12-05 | 2019-03-08 | 山东恒利热载体工程技术有限公司 | A kind of environmental protection organic heat carrier and preparation method thereof |
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