CN107655357A - A kind of inexpensive solid particle heat-storing device and method - Google Patents
A kind of inexpensive solid particle heat-storing device and method Download PDFInfo
- Publication number
- CN107655357A CN107655357A CN201711019398.3A CN201711019398A CN107655357A CN 107655357 A CN107655357 A CN 107655357A CN 201711019398 A CN201711019398 A CN 201711019398A CN 107655357 A CN107655357 A CN 107655357A
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- China
- Prior art keywords
- heat
- particle
- solid
- furnace wall
- hot
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0056—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using solid heat storage material
-
- 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
-
- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Central Heating Systems (AREA)
Abstract
The invention discloses a kind of inexpensive solid particle heat-storing device and method, heat is inputted to the heat-transfer surface of furnace wall by thermal source, the cold conditions solid heat accumulation particle for being stored in cold storehouse is sent into progress heat exchange in furnace wall, blower fan will convey wind and will be sent into after air compartment even distributing wind in furnace wall, so that solid heat accumulation particle is in fluidisation state in furnace wall, augmentation of heat transfer, solid heat accumulation particle is separated after device separates and leaves into heat storage after heat absorption, completion heat accumulation process；When there is heat demand, hot solid heat accumulation particle enters heat exchanger in hot storehouse, discharges heat to meet needs；The present invention, which has, invests the advantages of small, operating cost is low, applied widely, can meet the heat accumulation requirement of the multi-temperature scope such as solar energy optical-thermal, industrial exhaust heat, underground heat, wind energy, peak load regulation network.
Description
Technical field
The invention belongs to heat-storage technology field, and in particular to a kind of inexpensive solid particle heat-storing device and method.
Background technology
Clean energy resource solar energy is rapidly developed in China in recent years, the especially hot generation technology of solar energy heat utilization
Have become one of important directions of future source of energy development.Solar utilization technique occurs some in evolution and is badly in need of me
Solve the problems, such as, such as：Solar power generation cycle and power demand cycle mismatch, the suddenly change of solar radiation energy-flux density
Cause system thermal stress acute variation and continuous energy demand during without solar radiation energy etc., these problems govern too
It is positive can photo-thermal power generation technology development, cause that solar light-heat power-generation efficiency is low, cost of electricity-generating is high.Therefore it is badly in need of heat-storage technology solution
Certainly the problem of these solar light-heat power-generation system thermal payment imbalances.
Field is utilized in traditional energy, thermal boiler in the process of running, the unmatched problem of load often occurs, caused
Boiler efficiency declines, energy waste.In addition, the heat of great quantities of spare is produced in some industrial processes.These boiler afterheats
If being stored with industrial exhaust heat, boiler efficiency will be effectively improved and entreprise cost is greatly reduced.
It using heat accumulating is medium by heat energy such as solar energy optical-thermal, underground heat, industrial exhaust heat, low taste used heat that heat-storage technology, which is,
Store, discharged when needing, effectively solve problem caused by energy supply and demand mismatch.Heat-storage technology
Development and utilization can greatly improve comprehensive utilization of energy level, be one and economize on resources, be environment-friendly and have extensive prospect
Technology.In recent years, heat-storage technology is turning into the focus of field of energy utilization research.At present, heat-storage medium cost is locked into
High factor, cause investment big, restrict the development of heat-storage technology.
The content of the invention
In order to overcome the above-mentioned problems of the prior art, present invention aims at provide a kind of inexpensive solid particle storage
Thermal and method, it is proposed that a kind of heat accumulation in solar energy heat utilization, boiler load adjustment and industrial exhaust heat use aspects
Apparatus and method, the present invention can effectively solve solar energy heat balance between revenue and expenditure, the adjustment of boiler load depth and industrial exhaust heat and return
The problems such as receipts.
In order to achieve the above object, the present invention uses following technical scheme：
A kind of inexpensive solid particle heat-storing device, including furnace wall 2, the bottom of furnace wall 2 are provided with air compartment 1, and the top of furnace wall 2 enters
Mouth connection thermal source 7, top exit connection separator 3, the hot storehouse 4 of the outlet of separator 3, hot storehouse 4 connects cold storehouse by heat exchanger 5
6, the entrance of blower fan 8 connection 3 defeated air-supply outlet of separator, the outlet of blower fan 8 access air compartment 1, the cold outlet of storehouse 6 connection furnace wall 2；It is described
The even distributing wind of air compartment 1 ensures solid heat accumulation particle in furnace wall 2 in fluidisation state；The separator 3 is by hot solid heat accumulation particle
Separated with conveying wind, hot solid heat accumulation particle enters hot storehouse 4, and conveying wind is recycled by blower fan 8.
The described top of air compartment 1 is provided with even distributing wind device, ensures that heat exchange area in fluidisation state, avoids simultaneously in furnace wall 2
Solid particle falls into air compartment 1.
Described furnace wall 2 is provided with heat-transfer surface and shoe, and the heat of thermal source 7 enters into heat-transfer surface with solid heat accumulation particle
Row heat exchange, prevented while effective heat exchange the abrasion of furnace wall 2.
Described separator 3 is cyclone separator.
Described hot storehouse 4 is provided with Insulation, prevents thermal loss.
Described heat exchanger 5 connects hot storehouse 4 and cold storehouse 6, and when needing heat, hot storehouse 4 conveys hot solids to heat exchanger 5
Grain, cold conditions solid particle enters cold storehouse 6 after heat release.
Cold conditions solid particle is transported in furnace wall 2 by described cold storehouse 6, and conveyance conduit is provided with anti-recirculation device, prevents thing
Material backflow.
Solar energy optical-thermal, boiler load are adjusted described thermal source 7 into heat or industrial exhaust heat is input to the heat exchange of furnace wall 2
Face.
Described solid particle, there is certain particle size range and intensity can be completely segregated in separator 3, use is honest and clean
Sand, boiler bottom slag or the flying dust or ceramic particle of valency.
A kind of heat-storing method of described inexpensive solid particle heat-storing device, solar energy optical-thermal, boiler load adjustment heat
Amount or industrial exhaust heat enter the heat-transfer surface of furnace wall 1 by the system of thermal source 7, and the cold conditions solid heat accumulation particle for being stored in cold storehouse 6 is defeated
It is sent into furnace wall 2, blower fan 8 will convey wind and is uniformly sent into furnace wall 2 by air compartment 1 so that solid heat accumulation particle is in furnace wall 2
State is fluidized, strengthens solid heat accumulation particle and is arranged on the heat-transfer surface progress heat exchange of furnace wall 2, the solid heat accumulation particle after heat absorption enters
Enter separator 3, hot solid heat accumulation particle is separated after device 3 separates and stored into hot storehouse 4, what separator 3 was isolated
Hot conveying wind enters the circular flow of blower fan 8；When there is heat demand, hot solid heat accumulation particle enters heat exchanger in hot storehouse 4
5 release heats meet needs.
Described heat exchanger 5, its heat in hot storehouse 4 can be cemented out, it is necessary to when heat can return to original system or work
For other purposes, the flexibility of Btu utilization is substantially increased.
Described cold storehouse 6 is subjected to the cold conditions solid heat accumulation particle that heat exchanger 5 carried out heat exchange, is circulated in furnace wall 2
Supplemented during material deficiency.
Described thermal source 7, it adjusts affluence from the unnecessary heat of heat, industry caused by solar energy and boiler load
Heat, heat exchange is carried out into furnace wall 1 and cold conditions solid heat accumulation particle.
Described blower fan 8, it conveys wind and comes from separator 3, the fluidized state entered after pressurization in the guarantee of air compartment 1 furnace wall 2.
Compared with prior art, the present invention has advantages below：
1. the high temperature that solid particle heat-storing device of the present invention and method avoid the heat reservoirs such as existing fuse salt is unstable
The qualitative, shortcomings such as freezing point is low, pressure rating requirement is high.
2. solid particle heat-storing device of the present invention and method effective coordination solar energy heat balance between revenue and expenditure, add pot
Stove load depth adjustment capability, has rationally reclaimed industrial exhaust heat, improves the flexibility utilized of the energy.
3. solid particle heat-storing device of the present invention and the container pressure class requirement of method are low, low cost.Heat accumulation solid
Particulate material wide material sources, cost are low.
4. for solid heat accumulation particle temperature of the present invention up to more than 800 DEG C, energy conversion efficiency is up to 95%, with other storages
Hot systems are compared to the obvious advantage.
5. system operatio is simple, it is reliable, there is wide application prospect.
Brief description of the drawings
Fig. 1 is heat-storing device of the present invention and the schematic diagram of method.
In figure：
1-air compartment, 2-furnace wall, 3-separator
4-hot 5-heat exchanger of storehouse 6-cold storehouse
7-thermal source, 8-blower fan
Embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
Embodiment one：
As illustrated, heat caused by solar energy enters the heat-transfer surface of furnace wall 1 by the system of thermal source 7, cold storehouse 6 is stored in
Cold conditions solid heat accumulation particle is conveyed into furnace wall 2, and blower fan 8 will convey wind and is uniformly sent into furnace wall 2 by air compartment 1 so that Gu
Body heat accumulation particle, in fluidisation state, strengthens solid heat accumulation particle with being arranged on the heat-transfer surface of furnace wall 2 and carries out heat exchange in furnace wall 2,
Solid heat accumulation particle after heat absorption enters separator 3, and the separated device 3 of hot solid heat accumulation particle is segregated into hot storehouse 4 and stored
Get off, the hot conveying wind that separator 3 is isolated enters the circular flow of blower fan 8.The heat for being stored in hot storehouse 4 can be by changing
Hot device 5 discharges, and returns to solar energy hot systems, solves continuous energy demand during no solar radiation energy, improve too
The flexibility of the positive energy utilization of resources.
Embodiment two：
As illustrated, high temperature fluid superfluous during boiler load down enters the heat-transfer surface of furnace wall 1, storage by the system of thermal source 7
The cold conditions solid heat accumulation particle that cold storehouse 6 be present is conveyed into furnace wall 2, and blower fan 8 is uniformly sent into furnace wall by wind is conveyed by air compartment 1
In 2 so that solid heat accumulation particle, in fluidisation state, is strengthened solid heat accumulation particle and entered with being arranged on the heat-transfer surface of furnace wall 2 in furnace wall 2
Row heat exchange, the solid heat accumulation particle after heat absorption enter separator 3, and the separated device 3 of hot solid heat accumulation particle separates laggard
Enter hot storehouse 4 to store, the hot conveying wind that separator 3 is isolated enters the circular flow of blower fan 8.During boiler load up, hot storehouse 4
Interior hot solid heat accumulation particle enters heat exchanger 5 and discharges heat, supplement boiler load up institute calorific requirement, reaches flexibly quick adjustment
The purpose of boiler load.
Embodiment three：
As illustrated, industrial exhaust heat enters the heat-transfer surface of furnace wall 1 by the system of thermal source 7, the cold conditions solid in cold storehouse 6 is stored in
Heat accumulation particle is conveyed into furnace wall 2, and blower fan 8 will convey wind and is uniformly sent into furnace wall 2 by air compartment 1 so that solid heat accumulation
Grain is interior in fluidisation state in furnace wall 2, strengthens solid heat accumulation particle and is arranged on the heat-transfer surface progress heat exchange of furnace wall 2, after heat absorption
Solid heat accumulation particle enters separator 3, and hot solid heat accumulation particle is separated after device 3 separates and stored into hot storehouse 4, point
Enter the circular flow of blower fan 8 from the hot conveying wind that device 3 is isolated.When there is heat demand, hot solid heat accumulation in hot storehouse 4
Grain enters the release heat of heat exchanger 5 and meets needs.
Specific embodiment described herein is only spirit of the present invention to be done for example, only listing solar energy
The embodiment of heat, boiler load adjustment heat and industrial exhaust heat as thermal source, but those skilled in the art know, and the present invention is same
Suitable for used in the heat reservoir of the multi-temperature scope such as wind-powered electricity generation, underground heat, peak load regulation network, and can be closed according to selection is actually needed
Suitable solid heat accumulation particle and the operating structure of adjustment fluid-bed heat exchanger, to improve the operational efficiency of system.
Although more herein used the terms such as hot storehouse 4, cold storehouse 6, thermal source 7, it is not precluded from using other terms
Possibility.Using these terms just for the sake of easily describing and explaining the essence of the present invention, any one is construed as
The additional limitation of kind is all disagreed with spirit of the present invention.
Particular embodiments described above, the purpose of the present invention, technical scheme and beneficial effect are carried out further in detail
Describe in detail it is bright, should be understood that the foregoing is only the present invention specific embodiment, be not intended to limit the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, technology extension or recreation for being made etc., all should be included
Within protection scope of the present invention.
Claims (10)
- A kind of 1. inexpensive solid particle heat-storing device, it is characterised in that：Including furnace wall (2), furnace wall (2) bottom is provided with air compartment (1), furnace wall (2) top entry connection thermal source (7), top exit connection separator (3), the hot storehouse of the outlet of separator 3 (4), Hot storehouse (4) connects cold storehouse (6), blower fan (8) entrance connection separator (3) defeated air-supply outlet by heat exchanger (5), and blower fan (8) goes out Mouth access air compartment (1), cold storehouse (6) outlet connection furnace wall (2)；Air compartment (1) even distributing wind ensures solid heat accumulation particle in stove In fluidisation state in wall (2)；The separator (3) separates hot solid heat accumulation particle and conveying wind, hot solid heat accumulation Particle enters hot storehouse (4), and conveying wind is recycled by blower fan (8).
- A kind of 2. inexpensive solid particle heat-storing device according to claim 1, it is characterised in that：Described air compartment (1) Top is provided with even distributing wind device, ensures furnace wall (2) interior heat exchange area in fluidisation state, while avoid solid particle from falling into air compartment (1)。
- A kind of 3. inexpensive solid particle heat-storing device according to claim 1, it is characterised in that：Described furnace wall (2) Provided with heat-transfer surface and shoe, the heat of thermal source (7) enters heat-transfer surface and carries out heat exchange with solid heat accumulation particle, is being had Imitating prevents the abrasion of furnace wall (2) while heat exchange.
- A kind of 4. inexpensive solid particle heat-storing device according to claim 1, it is characterised in that：Described separator (3) it is cyclone separator.
- A kind of 5. inexpensive solid particle heat-storing device method according to claim 1, it is characterised in that：Described hot storehouse (4) Insulation is provided with, prevents thermal loss.
- A kind of 6. inexpensive solid particle heat-storing device according to claim 1, it is characterised in that：Described heat exchanger (5) hot storehouse (4) and cold storehouse (6) are connected, when needing heat, hot storehouse (4) conveys hot solids particle to heat exchanger (5), and heat is released Put rear cold conditions solid particle and enter cold storehouse (6).
- A kind of 7. inexpensive solid particle heat-storing device according to claim 1, it is characterised in that：Described cold storehouse (6) Cold conditions solid particle is transported in furnace wall (2), conveyance conduit is provided with anti-recirculation device, prevents feed back.
- A kind of 8. inexpensive solid particle heat-storing device according to claim 1, it is characterised in that：Described thermal source (7) Solar energy optical-thermal, boiler load adjustment heat or industrial exhaust heat are input to the heat-transfer surface of furnace wall (2).
- A kind of 9. inexpensive solid particle heat-storing device according to claim 1, it is characterised in that：Described solid Grain, there is certain particle size range and intensity can be completely segregated in separator (3), using cheap sand, boiler bottom slag Or flying dust or ceramic particle.
- 10. a kind of heat-storing method of inexpensive solid particle heat-storing device described in any one of claim 1 to 9, its feature exist In：Solar energy optical-thermal, boiler load adjustment heat or industrial exhaust heat enter the heat-transfer surface of furnace wall (1), storage by thermal source (7) system The cold conditions solid heat accumulation particle that cold storehouse (6) be present is conveyed into furnace wall (2), and it is uniform by air compartment (1) that blower fan (8) will convey wind It is sent into furnace wall (2) so that solid heat accumulation particle in fluidisation state, strengthens solid heat accumulation particle and be arranged on stove in furnace wall (2) The heat-transfer surface of wall (2) carries out heat exchange, and the solid heat accumulation particle after heat absorption enters separator (3), hot solid heat accumulation particle It is separated after device (3) separates and is stored into hot storehouse (4), the hot conveying wind that separator (3) is isolated follows into blower fan (8) Inscription of loop；When there is heat demand, hot solid heat accumulation particle enters heat exchanger (5) release heat and meets needs in hot storehouse (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711019398.3A CN107655357A (en) | 2017-10-26 | 2017-10-26 | A kind of inexpensive solid particle heat-storing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711019398.3A CN107655357A (en) | 2017-10-26 | 2017-10-26 | A kind of inexpensive solid particle heat-storing device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107655357A true CN107655357A (en) | 2018-02-02 |
Family
ID=61095183
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711019398.3A Withdrawn CN107655357A (en) | 2017-10-26 | 2017-10-26 | A kind of inexpensive solid particle heat-storing device and method |
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| Country | Link |
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| CN (1) | CN107655357A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827347A (en) * | 2019-03-27 | 2019-05-31 | 中国科学院理化技术研究所 | Solar receiver |
| CN109847459A (en) * | 2019-01-25 | 2019-06-07 | 西安热工研究院有限公司 | A kind of heat chemistry heat reservoir and method using fluid mapper process |
| CN110360862A (en) * | 2019-07-02 | 2019-10-22 | 清华大学 | Solid Jie's energy-storage system and method based on fluidized bed heating |
| CN112361429A (en) * | 2020-11-02 | 2021-02-12 | 河北建筑工程学院 | Solid heat storage and supply system of electric heating fluidized bed |
| CN112361428A (en) * | 2020-11-02 | 2021-02-12 | 河北建筑工程学院 | Electric heating fluidized bed heat accumulator and heat supply system |
| CN112944332A (en) * | 2021-02-02 | 2021-06-11 | 清华大学 | Circulating ash heat storage system and method for optimizing deep peak shaving |
| CN113432469A (en) * | 2021-06-11 | 2021-09-24 | 东方电气集团东方锅炉股份有限公司 | Multistage fluidized bed solid particle stores thermal system |
-
2017
- 2017-10-26 CN CN201711019398.3A patent/CN107655357A/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109847459A (en) * | 2019-01-25 | 2019-06-07 | 西安热工研究院有限公司 | A kind of heat chemistry heat reservoir and method using fluid mapper process |
| CN109827347A (en) * | 2019-03-27 | 2019-05-31 | 中国科学院理化技术研究所 | Solar receiver |
| CN110360862A (en) * | 2019-07-02 | 2019-10-22 | 清华大学 | Solid Jie's energy-storage system and method based on fluidized bed heating |
| CN112361429A (en) * | 2020-11-02 | 2021-02-12 | 河北建筑工程学院 | Solid heat storage and supply system of electric heating fluidized bed |
| CN112361428A (en) * | 2020-11-02 | 2021-02-12 | 河北建筑工程学院 | Electric heating fluidized bed heat accumulator and heat supply system |
| CN112361428B (en) * | 2020-11-02 | 2021-08-20 | 河北建筑工程学院 | Electric heating fluidized bed heat accumulator and heat supply system |
| CN112361429B (en) * | 2020-11-02 | 2021-09-21 | 河北建筑工程学院 | Solid heat storage and supply system of electric heating fluidized bed |
| CN112944332A (en) * | 2021-02-02 | 2021-06-11 | 清华大学 | Circulating ash heat storage system and method for optimizing deep peak shaving |
| CN112944332B (en) * | 2021-02-02 | 2023-05-23 | 清华大学 | Circulating ash heat storage system and method for optimizing depth peak shaving thereof |
| CN113432469A (en) * | 2021-06-11 | 2021-09-24 | 东方电气集团东方锅炉股份有限公司 | Multistage fluidized bed solid particle stores thermal system |
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Application publication date: 20180202 |