CN209355513U - Solar energy heat-storage system based on solid particle - Google Patents
Solar energy heat-storage system based on solid particle Download PDFInfo
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- CN209355513U CN209355513U CN201821993237.4U CN201821993237U CN209355513U CN 209355513 U CN209355513 U CN 209355513U CN 201821993237 U CN201821993237 U CN 201821993237U CN 209355513 U CN209355513 U CN 209355513U
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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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- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
The utility model provides a kind of solar energy heat-storage system based on solid particle, include: to absorb tower assembly, high-temperature particle feed bin, fluidized bed heat exchanger device and cryogenic particles feed bin, absorbs tower assembly, high-temperature particle feed bin, fluidized bed heat exchanger device and cryogenic particles feed bin and be sequentially connected with by pipeline head and the tail and form heat accumulation circuit.Solar energy heat-storage system provided by the utility model, the heat of sun light beam is absorbed using solid particle, and is stored in high-temperature particle storage bin, carries out heat exchange by fluidized bed heat exchanger device and working medium, working medium is heated to high-temperature high-pressure state, it can be achieved that solar energy high effective heat-storage and utilization.
Description
Technical field
The utility model embodiment is related to solar energy development technical field, is based on solid particle more particularly, to one kind
Solar energy heat-storage system.
Background technique
As the solar energy irradiation received per hour on the earth has been more than the mankind's consumed energy every year, Zhan Quanqiu
The thermal energy of energy budget 90% is all directly or indirectly from sunlight.Therefore, solar energy has as global basis energy supply
Other renewable energy and the incomparable advantage of fossil energy.Therefore, novel, efficient, large-scale Solar use is developed
Technology is imperative.The solar energy generation technology and heat transfer technology of concentrated are the important developments that the following solar energy scale utilizes
Solar heat is assembled by beam condensing unit in direction, by heat carrier by heat transfer, it can be achieved that solar energy is effectively caught
It obtains, store and uses.
Currently, tower photothermal technique is concerned in recent years, compared to other in solar power generation and heating technique
Photothermal technique has high thermal efficiency, high concentration ratio and is limited the advantages such as small by landform.To improve thermoelectric conversion efficiency, the following tower
The optimum optimization direction of formula photothermal technique is to obtain higher heat accumulation temperature, and selecting suitable heat transfer heat-storage medium is tower photo-thermal
The key of technology realization high heat storage temperature.
Heat transfer heat-storage medium in existing receiver mainly uses water/vapor for heat carrier, and water is heated in receiver
Evaporation becomes vapor, and vapor, which continues heat absorption, becomes the superheated steam of high temperature and pressure, converts thermal energy hence into steam turbine
For electric energy.Water/vapor receiver suitable structures type is mainly tubulose, specific to be divided into lumen formula and exposed again, still
In any shape, all there are problems that the absorbing pipe temperature difference is big, influences the receiver service life.Steam is as its conductivity of heat of working medium simultaneously
Energy storage is ineffective, and temperature is substantially at 100~600 DEG C, and height temperate zone carrys out the problems such as overpressure is excessive and further limits this
The development of technology.
In addition, air receiver and water/vapor receiver identical point be have it is pollution-free, corrosion-free, non-combustible, be easy to get
The advantages that arriving, be easy to handle, and system corrosion problem is not present in air receiver, and structure is simple.But air is used as heat transfer medium
The shortcomings that be that thermal capacity is low and heat-transfer character is poor, be unable to satisfy the demand of high heat-transfer performance under high temperature.
The heat transfer property and thermal storage performance of fuse salt receiver are superior to vapor and air.According to statistics, there are about one in the whole world
Half tower type solar electricity generation system uses molten heat transmission heat accumulation, for the side such as fused salt physical property, thermal stability and fused salt corrosion
The research in face is also carrying out always, but it is applied to tower-type electricity generation system and still remains problem: first is that due to the shakiness of fuse salt
Qualitative, high temperature is easy to happen pyrolysis, and maximum operation (service) temperature is not able to satisfy the following advanced high-temperature solar power generation (800
~1000 DEG C) demand；Second is that fuse salt freezing point is high, it is easy solidification in low temperature, it is easy blocking pipeline, limits and use
Temperature range, and viscosity can change with the variation of temperature, increase pump power；Third is that fuse salt is to storage device
Material technology is higher, and installation cost is high.
To overcome the problems, such as that fuse salt exists, high-temperature receiver needs to develop new receiver material and heat transfer and heat accumulation and is situated between
Matter.Solids receiver is a kind of new receiver pattern, is connect using small solid particle as heat transfer and heat-storage medium
The solar energy that heliostat reflection focuses is received, receiver can be made to reach the required condition of high temperature, provide one for tower receiver
New developing direction.
Utility model content
(1) technical problems to be solved
The purpose of the utility model embodiment is to provide a kind of solar energy heat-storage system based on solid particle, existing to solve
Low, the at high cost problem of the thermal efficiency in the tower photo-thermal device having.
(2) technical solution
In order to solve the above-mentioned technical problem, the utility model embodiment provides a kind of solar energy heat-storage based on solid particle
System, comprising: absorb tower assembly, high-temperature particle feed bin, fluidized bed heat exchanger device and cryogenic particles feed bin, the absorption tower assembly
For absorbing the heat of sun light beam；
The absorption tower assembly, high-temperature particle feed bin, fluidized bed heat exchanger device and cryogenic particles feed bin pass through pipeline head and the tail
It is sequentially connected with and is formed heat accumulation circuit, it is described to absorb arrangement solid particle in tower assembly to absorb the heat of the sun light beam,
The solid particle circulates in the heat accumulation circuit；
The fluidized bed heat exchanger device is equipped with working medium entrances channel and sender property outlet channel, and gas working medium to be heated is in institute
It states in fluidized bed heat exchanger device and carries out heat exchange with the solid particle.
Preferably, the absorption tower assembly, high-temperature particle feed bin, fluidized bed heat exchanger device and cryogenic particles feed bin are successively set
It sets.
Preferably, the absorption tower assembly is equipped with particle entrance channel and particle outlet channel；The high-temperature particle feed bin
Equipped with high temperature storing access road and high temperature storing exit passageway；The fluidized bed heat exchanger device is equipped with heat exchange access road and changes
Hot exit passageway；The cryogenic particles feed bin is equipped with low temperature storing access road and low temperature storing exit passageway；
The particle entrance channel, particle outlet channel, high temperature storing access road, high temperature storing exit passageway, heat exchange
Access road, heat exchange exit passageway, low temperature storing access road and low temperature storing exit passageway are suitable by the pipeline head and the tail
Secondary connection.
Preferably, the absorption tower assembly is successively arranged: particle funnel, heating chamber and particle collecting cells, the solid
Particle enters heating chamber after particle funnel and absorbs heat, and enters back into particle collecting cells, the inlet and outlet position of each component can be according to stream
The dynamic demand with heat transfer is arranged；
Be equipped with heat-transfer surface in the heating chamber or absorb tube bank, the heat-transfer surface or absorb tube bank for absorb it is described too
The heat of solar beam, wall surface coats spectral selective absorbing coating, and heat exchange material heatproof is higher than 700 DEG C, the solid particle
Heat exchange is carried out with heat-transfer surface or absorption tube bank in heating chamber.Specific flow-type can be along gravitational field or inverse gravitational field,
Including but not limited to free-falling, obstruction whereabouts, bubbling fluidization, turbulence fluidization or Rapid Circulation fluidization.
Preferably, the fluidized bed heat exchanger device include: fluid-bed heat exchanger ontology, accessory fan, gas-solid separating device,
Fluidisation gas inlet channel and fluidizing gas exit passageway, the working medium entrances channel, sender property outlet channel, fluidisation gas inlet
Channel and fluidizing gas exit passageway are connect with the fluid-bed heat exchanger ontology respectively, and the accessory fan is installed in described
In fluidisation gas inlet channel, the gas-solid separating device is installed in the fluidizing gas exit passageway.
Preferably, the pipeline between the high-temperature particle storehouse and the fluidized bed heat exchanger device is equipped with particle throttle valve.
Preferably, further include particle cooling storehouse, the particle cooling storehouse be installed in the fluidized bed heat exchanger device with it is described
On pipeline between cryogenic particles feed bin.
Preferably, the cryogenic particles feed bin and the pipeline absorbed between tower assembly are equipped with granule circulating device.
Preferably, the fluidized bed heat exchanger device heatproof is higher than 560 DEG C and pressure resistance is higher than 23MPa；The solid particle
Diameter is 0.06~2mm, and fusing point is higher than 800 DEG C.
(3) beneficial effect
Solar energy heat-storage system provided by the utility model based on solid particle absorbs sun light beam using solid particle
Heat after, heat exchange is carried out with working medium to be heated, so that working medium is transferred heat to, since solid particle thermal storage performance is steady
It is fixed, the heat higher than 600 DEG C can be absorbed in the case where normal pressure or low pressure and is stored in high temperature storage bin, and then can be made
The high temperature that 560 DEG C or more or even thousands of degrees Celsius are obtained by the working medium of fluidized bed heat exchanger device is obtained, to realize solar energy
High temperature heat transfer, and heat transfer efficiency is high.
Solid particle heat transfer heat-storage medium can be realized high-performance and low cost under high temperature, meet high thermoelectric conversion effect
The heat source temperature that rate needs.It is a kind of important way of solid particle heat transfer heat reservoir using gas-particle suspension system, passes through stream
Change to control mass velocity and therefore increase heat transfer time, increases heat exchange efficiency.Compared to the fuse salt system being widely used at present
System, gas-particle suspension tie up to thermoelectric conversion efficiency, one-time investment and the several aspects of operation and maintenance cost with significant advantage.
In addition, the heat transfer heat reservoir based on gas-particle suspension system can also generate electricity with thermal storage heating, heat accumulation and the technologies phases such as air energy storage
In conjunction with vast potential for future development.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is this
Some embodiments of utility model, for those of ordinary skill in the art, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is the connection schematic diagram of the solar energy heat-storage system based on solid particle in the utility model embodiment；
In figure:
1- absorbs tower assembly；2- high-temperature particle feed bin；3- fluidized bed heat exchanger device；4- particle cooling storehouse；5- cryogenic particles
Feed bin；6- granule circulating device；7- particle throttle valve；101- particle funnel；102- heating chamber；103- particle collecting cells；
104- absorbs beam tube；301- fluidisation gas inlet channel；302- fluidizing gas exit passageway；303- gas-solid separating device；304-
Accessory fan；305- working medium entrances channel；306- sender property outlet channel.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Refering to what is shown in Fig. 1, the utility model embodiment provides a kind of heat transfer based on solar energy and heat reservoir, using solid
Heat exchange is carried out with gas working medium after the heat of body particle absorption sun light beam, to realize heat transmission function.Solid particle it is straight
Diameter is generally 0.006mm~2mm, and fusing point is higher than 800 DEG C, and quartz sand can be selected as solid particle in the present embodiment.The biography
Heat is specifically included with heat reservoir: tower assembly 1, high-temperature particle feed bin 2, fluidized bed heat exchanger device 3, cryogenic particles feed bin 5 are absorbed,
Absorb the heat for the sun light beam that tower assembly 1 is used to absorb by the reflection of orientation solar eyepiece field.Wherein, the reflection of orientation solar eyepiece field can will too
Sunlight reflects to form the sun light beam of orientation.
According to the specific requirements of solid particle flow, tower assembly 1, high-temperature particle feed bin 2, fluidized bed heat exchanger device 3 are absorbed
It can set gradually with cryogenic particles feed bin 5, and be sequentially connected with by pipeline head and the tail, to form heat accumulation circuit.Specifically, absorption tower
Component 1 is equipped with particle entrance channel and particle outlet channel；High-temperature particle feed bin 2 is equipped with high temperature storing access road and high temperature stores up
Expect exit passageway；Fluidized bed heat exchanger device 3 is equipped with heat exchange access road and heat exchange exit passageway；Cryogenic particles feed bin 5 is equipped with low
The inlet and outlet position of warm storing access road and low temperature storing exit passageway, each component can be according to the demand cloth of flowing and heat transfer
It sets.Particle entrance channel, particle outlet channel, high temperature storing access road, high temperature storing exit passageway, heat exchange entrance are led to
Road, heat exchange exit passageway, low temperature storing access road and low temperature storing exit passageway are sequentially connected with by pipeline head and the tail, thus
Form the heat accumulation circuit.
In the above-described embodiments, it is placed in after absorbing the heat that the solid particle in tower assembly 1 absorbs sun light beam, in heat accumulation
It is circulated in circuit.High-temperature particle feed bin 2 made of 600 DEG C of the heatproof above and materials with preferable antiwear characteristic and
At.Fluidized bed heat exchanger device is made of the wear-resistant material of 560 DEG C of heatproof or more and pressure resistance 23MPa or more, can be selected resistant to high temperature
Alloy material.Since fluidized bed heat exchanger device 3 is equipped with working medium entrances channel 305 and sender property outlet channel 306, working medium entrances are logical
Road 305 and sender property outlet channel 306 may be provided at the side of fluidized bed heat exchanger device 3, and solid particle is from fluidized bed heat exchanger device
3 top enters, and flows out from the bottom of fluidized bed heat exchanger device 3.Working medium to be heated is flowed into from working medium entrances channel 305, work
The solid particle of matter and high temperature flows out after carrying out heat exchange from sender property outlet channel 306.Solid particle carries out temperature after heat exchange
It reduces, and eventually enters into cryogenic particles feed bin 5.Solid particle in cryogenic particles feed bin 5 can pass through during heat accumulation
Granule circulating device 6, which is transported to, to be absorbed in tower assembly 1, and granule circulating device 6 can be pumping mechanism or transmission mechanism, is made
Be by solid particulate matter be transported to absorb tower assembly 1.
In the above-described embodiments, the structure for absorbing tower assembly 1 specifically includes: the particle funnel 101 that sets gradually, heating chamber
Room 102 and particle collecting cells 103, particle collecting cells 103 are connected to by pipeline with high-temperature particle feed bin 2.Solid particle is from particle
Funnel 101 enters in heating chamber 102 and collects in particle collecting cells 103 after heat absorption, so as to subsequent use.Certainly, each component
Setting position can according to flowing with heat transfer demand arrange, to realize various forms of heat exchanges.
Specifically, it is equipped with heat-transfer surface in heating chamber 102 or absorbs tube bank, for absorbing tube bank, absorbs tube bank 104 and sets
In in heating chamber 102, it is used to absorb the heat of sun light beam.Solid particle restrains 104 with absorption in heating chamber 102
Heat exchange is carried out, the specific type of flow can be along gravitational field or inverse gravitational field, including but not limited under free-falling, obstruction
It falls, bubbling fluidization, turbulence fluidization or Rapid Circulation fluidization.Tube bank 104 is absorbed to be made of closed cavity, it can be by heatproof
700 DEG C or more of material is made, generally selection alloy material.According to actual needs, absorbing tube bank can be more, and more suctions
Closed tube beam is arranged in parallel in heating chamber 102.In addition, the every wall surface for absorbing tube bank 104 is absorbed coated with spectral selection
Coating, spectral selective absorbing coating are used to improve the assimilation effect to sun light beam heat.
The sun light beam generated by heliostat field is irradiated in absorption tube bank 104 from the axial direction for absorbing tube bank 104, is absorbed
Spectral selective absorbing coating in tube bank 104 absorbs, and heat flows through tube bank by absorbing the tube wall of tube bank 104 and being directly passed to
The solid particle stream of particle collecting cells 103 is flow to from particle funnel 101 outside, the solid particle after heating enters particle collecting cells
103, the high-temperature particle of particle collecting cells 103, which enters in high-temperature particle feed bin 2, to be stored, to complete heat accumulation process.Due to
Solid particle circulates in heat accumulation circuit, carries out hot friendship with working medium to be heated when it passes through fluidized bed heat exchanger device 3
It changes, completes diabatic process.Cooling solid particle enters cryogenic particles feed bin 5 after heat exchange.
Granule circulating device 6 in above-described embodiment is specifically installed between cryogenic particles feed bin 5 and particle funnel 101
On pipeline, by granule circulating device 6 transport Lai solid particle initially enter in particle funnel 101.Too for varying strength
Solar beam can realize the adjusting of solid particle flow by particle funnel 101, to guarantee the abundant heated of solid particle, prevent
It absorbs heat insufficient when fluid stopping amount is excessive and causes that required temperature is not achieved.
Solar energy heat-transferring system provided by the embodiment of the utility model absorbs the heat of sun light beam using solid particle
Afterwards, heat exchange is carried out with working medium to be heated, so that working medium is transferred heat to, it, can since solid particle thermal storage performance is stablized
With in the case where normal pressure or low pressure absorb higher than 600 DEG C heat and be stored in high temperature storage bin, and then can make through
The working medium for crossing fluidized bed heat-exchanger rig obtains the high temperature of 560 DEG C or more or even thousands of degrees Celsius, to realize the high temperature of solar energy
Heat transfer, and heat transfer efficiency is high.
On the basis of the various embodiments described above, fluidized bed heat exchanger device 3 includes: fluid-bed heat exchanger ontology, gas solid separation
Device 303, accessory fan 304, fluidisation gas inlet channel 301 and fluidizing gas exit passageway 302, working medium entrances channel 305,
Sender property outlet channel 306, fluidisation gas inlet channel 301 and fluidizing gas exit passageway 302 respectively with fluid-bed heat exchanger
Ontology connection, but working medium entrances channel 305 and sender property outlet channel 306 and fluidisation gas inlet channel 301 and fluidizing gas
The flow path of exit passageway 302 does not intersect and is independent of each other.Fluidisation gas inlet channel 301 and fluidizing gas exit passageway
302 are connected to the heat exchange access road of solid particle and heat exchange exit passageway, and generally, fluidisation gas inlet channel 301 is arranged
In the lower part of fluid-bed heat exchanger ontology, fluidizing gas exit passageway 302 is arranged in the top of fluid-bed heat exchanger ontology, is used for
Make solid particle in fluidisation state gas from fluidisation gas inlet channel 301 enter fluid-bed heat exchanger ontology, and with solid
Grain is sufficiently mixed and is allowed in fluidisation state, and fluidizing gas is finally flowed out from fluidizing gas exit passageway 302, to improve heat exchange effect
Fruit.
Wherein, gas-solid separating device 303 is installed in fluidizing gas exit passageway 302, is realized efficient gas solid separation, is subtracted
It is lost caused by few exclusion because of solid particle.Gas-solid separating device 303 can specifically adopt cyclone separator etc..Accessory fan 304 fills
It is located in fluidisation gas inlet channel 301.Accessory fan 304 can provide enough pressure differences (1~20kPa) and gas flow rate (0.1
~10m/s) so that forming gas-solid fluidization, including but not limited to bubbling, turbulence, Rapid Circulation etc. in fluidized bed heat exchanger device 3
Fluidization form.
In the above embodiments, enter the flow in fluidized bed heat exchanger device 3 for the ease of control solid particle,
Particle throttle valve 7 is installed on pipeline between high-temperature particle storehouse 2 and fluidized bed heat exchanger device 3, is realized and is flowed by particle throttle valve 7
Amount control, so as to be adjusted according to the flow of working medium and need temperature to be achieved.
On the basis of the various embodiments described above, when sun beam energy intensity is higher, solid particle absorb heat compared with
Greatly, temperature is higher, even if still higher with its temperature after working medium heat exchange to be heated, it is therefore desirable to add the work of particle cooling storehouse 4
For a cooling buffer area, particle cooling storehouse 4 is installed in the pipeline between fluidized bed heat exchanger device 3 and cryogenic particles feed bin 5
On, solid particle is entered back into after cooling in cryogenic particles feed bin 5, since the temperature that cryogenic particles feed bin 5 can bear is not high,
The temperature for avoiding temperature excessively high damages cryogenic particles feed bin 5, to influence service life.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (10)
1. a kind of solar energy heat-storage system based on solid particle characterized by comprising absorb tower assembly, high-temperature particle material
Storehouse, fluidized bed heat exchanger device and cryogenic particles feed bin, the heat for absorbing tower assembly and being used to absorb sun light beam；
The absorption tower assembly, high-temperature particle feed bin, fluidized bed heat exchanger device and cryogenic particles feed bin by pipeline head and the tail sequentially
Connect and formed heat accumulation circuit, it is described to absorb arrangement solid particle in tower assembly to absorb the heat of the sun light beam, it is described
Solid particle circulates in the heat accumulation circuit；
The fluidized bed heat exchanger device is equipped with working medium entrances channel and sender property outlet channel, and gas working medium to be heated is in the stream
Change in bed heat-exchanger rig and carries out heat exchange with the solid particle.
2. solar energy heat-storage system according to claim 1, which is characterized in that the absorption tower assembly, high-temperature particle material
Storehouse, fluidized bed heat exchanger device and cryogenic particles feed bin are set gradually.
3. solar energy heat-storage system according to claim 2, which is characterized in that the absorption tower assembly is equipped with particle entrance
Channel and particle outlet channel；The high-temperature particle feed bin is equipped with high temperature storing access road and high temperature storing exit passageway；Institute
It states fluidized bed heat exchanger device and is equipped with heat exchange access road and heat exchange exit passageway；The cryogenic particles feed bin is equipped with low temperature storing and enters
Mouth channel and low temperature storing exit passageway；
The particle entrance channel, particle outlet channel, high temperature storing access road, high temperature storing exit passageway, heat exchange entrance
Channel, heat exchange exit passageway, low temperature storing access road and low temperature storing exit passageway are sequentially connected by the pipeline head and the tail
It connects.
4. solar energy heat-storage system according to claim 3, which is characterized in that the absorption tower assembly is successively arranged:
Grain funnel, heating chamber and particle collecting cells, the solid particle enters in the heating chamber from the particle funnel to absorb heat
Collect in the particle collecting cells afterwards；
It is equipped with heat-transfer surface in the heating chamber or absorbs tube bank, the heat-transfer surface or absorption tube bank are for absorbing the sunlight
The heat of beam, the heat-transfer surface or the surface for absorbing tube bank are coated with spectral selective absorbing coating, and the heat-transfer surface or suction
The heatproof of closed tube beam is higher than 700 DEG C, and the solid particle carries out in the heating chamber with the heat-transfer surface or absorption tube bank
Heat exchange, specific flow-type can be along gravitational field or inverse gravitational field, and including but not limited to free-falling, obstruction falls, is bubbled
Fluidization, turbulence fluidization or Rapid Circulation fluidization.
5. according to claim 1 to any solar energy heat-storage system in 4, which is characterized in that the fluidized bed heat exchanger dress
Set includes: fluid-bed heat exchanger ontology, accessory fan, gas-solid separating device, fluidisation gas inlet channel and fluidizing gas outlet
Channel, the working medium entrances channel, sender property outlet channel, fluidisation gas inlet channel and fluidizing gas exit passageway respectively with
The fluid-bed heat exchanger ontology connection, the accessory fan are installed in the fluidisation gas inlet channel, the gas-solid point
It is installed in the fluidizing gas exit passageway from device.
6. solar energy heat-storage system according to claim 5, which is characterized in that the accessory fan is for making the stream
Change bed heat-exchanger rig and form gas-solid fluidization, the form of the gas-solid fluidization includes bubbling, turbulence or Rapid Circulation.
7. according to claim 1 to the solar energy heat-storage system any in 4, which is characterized in that the high-temperature particle storehouse with
Pipeline between the fluidized bed heat exchanger device is equipped with particle throttle valve.
8. according to claim 1 to any solar energy heat-storage system in 4, which is characterized in that further include: particle is cooling
Storehouse, the particle cooling storehouse are installed on the pipeline between the fluidized bed heat exchanger device and the cryogenic particles feed bin.
9. according to claim 1 to any solar energy heat-storage system in 4, which is characterized in that the cryogenic particles feed bin
Pipeline between the absorption tower assembly is equipped with granule circulating device.
10. according to claim 1 to any solar energy heat-storage system in 4, which is characterized in that the fluidized bed heat exchanger dress
Heatproof is set higher than 560 DEG C and pressure resistance is higher than 23MPa；The diameter of the solid particle is 0.06mm~2mm, and fusing point is higher than 800 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821993237.4U CN209355513U (en) | 2018-11-29 | 2018-11-29 | Solar energy heat-storage system based on solid particle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821993237.4U CN209355513U (en) | 2018-11-29 | 2018-11-29 | Solar energy heat-storage system based on solid particle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682096A (en) * | 2018-11-29 | 2019-04-26 | 中国科学院理化技术研究所 | Solar energy heat-storage system based on solid particle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682096A (en) * | 2018-11-29 | 2019-04-26 | 中国科学院理化技术研究所 | Solar energy heat-storage system based on solid particle |
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