CN207540411U - A kind of low cost solid particle heat-storing device - Google Patents

A kind of low cost solid particle heat-storing device Download PDF

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Publication number
CN207540411U
CN207540411U CN201721391152.4U CN201721391152U CN207540411U CN 207540411 U CN207540411 U CN 207540411U CN 201721391152 U CN201721391152 U CN 201721391152U CN 207540411 U CN207540411 U CN 207540411U
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China
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heat
furnace wall
particle
storehouse
solid
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CN201721391152.4U
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Inventor
韩立鹏
刘冠杰
江建忠
肖平
郭涛
吕海生
李强
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Huaneng Clean Energy Research Institute
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Huaneng Clean Energy Research Institute
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14Thermal energy storage

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Abstract

The utility model discloses a kind of inexpensive solid particle heat-storing devices, heat is inputted to the heat-transfer surface of furnace wall by heat source, the cold conditions solid heat accumulation particle for being stored in cold storehouse is sent into progress heat exchange in furnace wall, wind turbine 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 enters heat storage and leaves, completes heat accumulation process after solid heat accumulation particle is detached by separator after heat absorption;When there is heat demand, hot solid heat accumulation particle enters heat exchanger in hot storehouse, discharges heat to meet needs;The utility model, which has, invests the advantages of small, operating cost is low, applied widely, can meet the heat accumulation requirement of the multi-temperatures range such as solar energy optical-thermal, industrial exhaust heat, underground heat, wind energy, peak load regulation network.

Description

A kind of low cost solid particle heat-storing device
Technical field
The utility model belongs to heat-storage technology field, and in particular to a kind of low cost solid particle heat-storing device.
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 period and power demand period mismatch, the suddenly change of solar radiation energy-flux density Lead to system thermal stress acute variation and continuous energy demand during without solar radiation energy etc., these problems restrict too It is positive can photo-thermal power generation technology development, lead to 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.
In traditional energy using field, in the process of running, often there is the unmatched problem of load, causes in thermal boiler Boiler efficiency declines, energy waste.In addition, the heat of great quantities of spare is generated 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 thermal energy such as solar energy optical-thermal, underground heat, industrial exhaust heat, low taste waste heat that heat-storage technology, which is, It stores, discharges when needed, effectively solve the problems, such as 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, is environmental-friendly and with extensive prospect Technology.In recent years, heat-storage technology is becoming the hot spot of field of energy utilization research.At present, heat-storage medium cost is locked into High factor causes investment big, restricts the development of heat-storage technology.
Utility model content
In order to overcome the above-mentioned problems of the prior art, the utility model aim is to provide a kind of inexpensive solid A kind of grain heat-storing device, it is proposed that heat accumulation dress in solar energy heat utilization, boiler load adjustment and industrial exhaust heat use aspects It puts and method, the utility model can effectively solve solar energy heat balance between revenue and expenditure, the adjustment of boiler load depth and industrial exhaust heat The problems such as recycling.
In order to achieve the above object, the utility model uses following technical scheme:
A kind of low cost solid particle heat-storing device, including furnace wall 2,2 lower part of furnace wall is equipped with air compartment 1,2 top entry of furnace wall Heat source 7, top exit connection separator 3, the hot storehouse 4 of 3 outlet of separator are connected, hot storehouse 4 connects cold storehouse 6 by heat exchanger 5, 8 entrance of wind turbine connects 3 defeated air-supply outlet of separator, the outlet of wind turbine 8 access air compartment 1, the cold outlet of storehouse 6 connection furnace wall 2;The air compartment 1 even distributing wind ensures solid heat accumulation particle in furnace wall 2 in fluidisation state;The separator 3 is by hot solid heat accumulation particle and defeated Air-supply separates, and hot solid heat accumulation particle enters hot storehouse 4, and conveying wind is recycled by wind turbine 8.
1 top of air compartment is equipped 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.
The furnace wall 2 is equipped with heat-transfer surface and shoe, the heat of heat source 7 enter heat-transfer surface and solid heat accumulation particle into Row heat exchange, in the abrasion for prevented while effective heat exchange furnace wall 2.
The separator 3 is cyclone separator.
The hot storehouse 4 is equipped with Insulation, prevents thermal loss.
The 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 the cold storehouse 6, and conveyance conduit is equipped with anti-recirculation device, prevents object Material reflux.
Solar energy optical-thermal, boiler load adjustment heat or industrial exhaust heat are input to the heat exchange of furnace wall 2 by the heat source 7 Face.
There is the solid particle certain particle size range and intensity can be completely segregated in separator 3, and 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 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 7 system of heat source, and the cold conditions solid heat accumulation particle for being stored in cold storehouse 6 is defeated It is sent into furnace wall 2, wind turbine 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 Fluidize state, strengthen solid heat accumulation particle and be arranged on the heat-transfer surface of furnace wall 2 carrying out heat exchange, solid heat accumulation particle after heat absorption into Enter separator 3, hot solid heat accumulation particle stores after being detached by separator 3 into hot storehouse 4, what separator 3 was isolated Hot conveying wind enters 8 circular flow of wind turbine;When there is heat demand, hot solid heat accumulation particle enters heat exchanger 5 in hot storehouse 4 Release heat meets needs.
The heat exchanger 5 can cement out the heat in hot storehouse 4, and heat can return to original system or work when needing For other purposes, the flexibility of Btu utilization is substantially increased.
The cold storehouse 6 is subjected to the cold conditions solid heat accumulation particle that heat exchanger 5 carried out heat exchange, is recycled in furnace wall 2 It is supplemented during material deficiency.
The heat source 7, the extra heat of the heat generated from solar energy, industry and boiler load adjustment affluence Heat carries out heat exchange into furnace wall 1 and cold conditions solid heat accumulation particle.
The wind turbine 8, conveying wind enter the fluidized state in the guarantee of air compartment 1 furnace wall 2 from separator 3 after pressurization.
Compared with prior art, the utility model has the following advantages:
1. the utility model solid particle heat-storing device and method avoid the high temperature of the heat reservoirs such as existing fuse salt The shortcomings such as unstability, solidification point are low, pressure rating requirement is high.
2. the utility model solid particle heat-storing device and method effective coordination solar energy heat balance between revenue and expenditure increase Boiler load depth adjustment capability, has rationally recycled industrial exhaust heat, improves the flexibility utilized of the energy.
3. the utility model solid particle heat-storing device and the container pressure class requirement of method are low, low cost.Heat accumulation Solid particulate materials derive from a wealth of sources, are at low cost.
4. the utility model solid heat accumulation particle temperature is up to 800 DEG C or more, energy conversion efficiency is up to 95%, with other Heat reservoir is compared to the obvious advantage.
5. system operatio is simple, it is reliable, there is wide application prospect.
Description of the drawings
Fig. 1 is the schematic diagram according to the utility model heat-storing device and method.
In figure:
1-air compartment, 2-furnace wall, 3-separator
4-hot 5-heat exchanger of storehouse 6-cold storehouse
7-heat source, 8-wind turbine
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
Embodiment one:
As shown in the figure, the heat that solar energy generates enters the heat-transfer surface of furnace wall 1 by 7 system of heat source, it is stored in cold storehouse 6 Cold conditions solid heat accumulation particle is conveyed into furnace wall 2, and wind turbine 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 hot solid heat accumulation particle is segregated into hot storehouse 4 by separator 3 and stores Get off, the hot conveying wind that separator 3 is isolated enters 8 circular flow of wind turbine.Heat exchange can be passed through by being stored in the heat in hot storehouse 4 Device 5 discharges, and returns to solar energy hot systems, solves continuous energy demand during no solar radiation energy, improve the sun The flexibility of the energy utilization of resources.
Embodiment two:
As shown in the figure, high temperature fluid superfluous during boiler load down enters the heat-transfer surface of furnace wall 1, storage by 7 system of heat source Cold conditions solid heat accumulation particle there are cold storehouse 6 is conveyed into furnace wall 2, and wind turbine 8 will convey wind and uniformly be sent into furnace wall by air compartment 1 In 2 so that solid heat accumulation particle in the furnace wall 2 in fluidisation state, strengthen solid heat accumulation particle and be arranged on the heat-transfer surface of furnace wall 2 into Row heat exchange, the solid heat accumulation particle after heat absorption enter separator 3, and hot solid heat accumulation particle is detached laggard by separator 3 Enter hot storehouse 4 to store, the hot conveying wind that separator 3 is isolated enters 8 circular flow of wind turbine.During boiler load up, hot storehouse 4 Interior hot solid heat accumulation particle enters heat exchanger 5 and discharges heat, and supplement boiler load up institute calorific requirement reaches flexibly quick adjustment The purpose of boiler load.
Embodiment three:
As shown in the figure, industrial exhaust heat enters the heat-transfer surface of furnace wall 1 by 7 system of heat source, it is stored in the cold conditions solid in cold storehouse 6 Heat accumulation particle is conveyed into furnace wall 2, and wind turbine 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 the heat-transfer surface progress heat exchange for being arranged on furnace wall 2, after heat absorption Solid heat accumulation particle enters separator 3, and hot solid heat accumulation particle stores after being detached by separator 3 into hot storehouse 4, point Enter 8 circular flow of wind turbine 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 the spirit of the present invention to be done for example, only listing solar energy The embodiment of photo-thermal, boiler load adjustment heat and industrial exhaust heat as heat source, but those skilled in the art know, and this practicality is new Type is equally applicable to used in the heat reservoir of the multi-temperatures range such as wind-powered electricity generation, underground heat, peak load regulation network, and can be according to actual needs It selects suitable solid heat accumulation particle and adjusts the operating structure of 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, heat source 7, it is not precluded using other terms Possibility.The use of these items is only for easily describing and explaining the essence of the utility model, it is construed as appointing A kind of what additional limitation is all contrary to the spirit of the present invention.
Particular embodiments described above has carried out into one the purpose of this utility model, technical solution and advantageous effect Step is described in detail, it should be understood that the foregoing is merely specific embodiment of the utility model, is not limited to this Utility model, within the spirit and principle of the utility model, any modification for being made, equivalent replacement, technology extension or again Create etc., it should be included within the scope of protection of this utility model.

Claims (8)

1. a kind of low cost solid particle heat-storing device, it is characterised in that:Including furnace wall (2), furnace wall (2) lower part is equipped with air compartment (1), furnace wall (2) top entry connection heat source (7), top exit connection separator (3), the hot storehouse of 3 outlet of separator (4), Hot storehouse (4) connects cold storehouse (6), wind turbine (8) entrance connection separator (3) defeated air-supply outlet by heat exchanger (5), and wind turbine (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).
2. a kind of inexpensive solid particle heat-storing device according to claim 1, it is characterised in that:The air compartment (1) Top is equipped with even distributing wind device, ensures furnace wall (2) interior heat exchange area in fluidisation state, while solid particle is avoided to fall into air compartment (1)。
3. a kind of inexpensive solid particle heat-storing device according to claim 1, it is characterised in that:The furnace wall (2) Equipped with heat-transfer surface and shoe, the heat of heat 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.
4. a kind of inexpensive solid particle heat-storing device according to claim 1, it is characterised in that:The separator (3) it is cyclone separator.
5. a kind of inexpensive solid particle heat-storing device method according to claim 1, it is characterised in that:The hot storehouse (4) equipped with Insulation, thermal loss is prevented.
6. a kind of inexpensive solid particle heat-storing device according to claim 1, it is characterised in that:The 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 Rear cold conditions solid particle is put into cold storehouse (6).
7. a kind of inexpensive solid particle heat-storing device according to claim 1, it is characterised in that:The cold storehouse (6) Cold conditions solid particle is transported in furnace wall (2), conveyance conduit is equipped with anti-recirculation device, prevents feed back.
8. a kind of inexpensive solid particle heat-storing device according to claim 1, it is characterised in that:The 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.
CN201721391152.4U 2017-10-26 2017-10-26 A kind of low cost solid particle heat-storing device Active CN207540411U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721391152.4U CN207540411U (en) 2017-10-26 2017-10-26 A kind of low cost solid particle heat-storing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721391152.4U CN207540411U (en) 2017-10-26 2017-10-26 A kind of low cost solid particle heat-storing device

Publications (1)

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CN201721391152.4U Active CN207540411U (en) 2017-10-26 2017-10-26 A kind of low cost solid particle heat-storing device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110360863A (en) * 2019-07-02 2019-10-22 清华大学 A kind of electric heating is situated between energy storage device admittedly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110360863A (en) * 2019-07-02 2019-10-22 清华大学 A kind of electric heating is situated between energy storage device admittedly
CN110360863B (en) * 2019-07-02 2020-10-09 清华大学 Electric heating solid medium energy storage device

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