CN101644548A - High-temperature chemical heat storage element and heat storage device based on high-temperature chemical heat storage element - Google Patents
High-temperature chemical heat storage element and heat storage device based on high-temperature chemical heat storage element Download PDFInfo
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- CN101644548A CN101644548A CN200910072668A CN200910072668A CN101644548A CN 101644548 A CN101644548 A CN 101644548A CN 200910072668 A CN200910072668 A CN 200910072668A CN 200910072668 A CN200910072668 A CN 200910072668A CN 101644548 A CN101644548 A CN 101644548A
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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
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Abstract
The invention provides a high-temperature chemical heat storage element and a heat storage device based on the high-temperature chemical heat storage element. The heat storage device comprises a housing, a thermal insulation material layer wrapped outside the housing and a pipe bundle positioned in the housing. The heat storage device is characterized in that the pipe bundle is constituted by arranging the high-temperature chemical heat storage element which consists of a spiral finned pipe, CaO/Ca(OH)2 solid materials filled among fins of the spiral finned pipe and a stainless steel sieve mesh wrapped outside the spiral finned pipe and the CaO/Ca(OH)2 solid materials. A heat-carrying medium inlet and an outlet are arranged at the upper part and the lower part of the housing and a water vapor inlet and an outlet are arranged in the side wall of the housing. The heat storage device utilizes the reversible heat absorption and heat release chemical reactions under different conditions forcompleting the storage and the release of energy, and the heat storage device has the advantages of high heat efficiency, rapid reaction, no mechanical movement of parts, easy resources, cheap priceand extremely attractive development prospects.
Description
(1) technical field
What the present invention relates to is a kind of recovery and storage device of heat energy, particularly a kind of novel chemical heat accumulation device.
(2) background technology
At present, energy shortage and environmental pollution have become problem highly visible.In China, energy shortage, utilization rate is low, energy-conservation potentiality are very big, particularly,, there are the secondary energy sources that account for total energy consumption 40%-50% to be emitted in vain with low-grade form as departments such as iron and steel, chemical industry, building materials and petrochemical industry in a series of energy-intensive industry department, therefore, the recycling of this part low grade heat energy occupies considerable status in whole energy-saving field.
Heat storage technology is not limited only to reclaim used heat, also can utilize solar heat.With respect to conventional energy resource, solar energy is huge energy treasure-house, has cleanliness without any pollution, takes characteristics easily, and as Gansu of China, Qinghai, Tibet and other places, intensity of solar radiation is big, and other energy shortage, so the utilization of solar energy is just more common.But the amount of stored heat of existing solar heat-storing device is little, and the accumulation of heat volume is big, the heat release instability.
(3) summary of the invention
A kind of high temeperature chemistry heat accumulating element of the object of the present invention is to provide a kind of thermal efficiency height, react fast, do not have mechanical moving-member, the source is easy, cheap reaches the storage heater based on the high temeperature chemistry heat accumulating element.
The object of the present invention is achieved like this:
The composition of high temeperature chemistry heat accumulating element of the present invention comprises the spirality finned tube, is filled with CaO/Ca (OH) between the fin of spirality finned tube
2Solid material is at spirality finned tube and CaO/Ca (OH)
2Solid material outer wrapping stainless steel mesh.
The caliber 13mm of described spirality finned tube, spiral external diameter 26mm, pitch 3-5mm.
Described stainless steel mesh is the 25 order stainless steel mesh of line footpath 0.27mm.
The composition of the storage heater that high temeperature chemistry heat accumulating element of the present invention constitutes comprises shell, wrap in the outer insulation material layer of shell and be arranged in the tube bank of shell; Described tube bank is by spirality finned tube, the CaO/Ca (OH) that fills between the fin of spirality finned tube
2Solid material is wrapped in spirality finned tube and CaO/Ca (OH)
2The high temeperature chemistry heat accumulating element that the outer stainless steel mesh of solid material constitutes rearranges; Shell heat-carrying agent import and outlet arranged up and down, side wall of outer shell has steam to import and export.
The described arrangement of described tube bank is in parallel.
Described tube bank is arranged in parallel by 52 high temeperature chemistry heat accumulating elements and forms.
High temeperature chemistry heat accumulating element of the present invention is to utilize heat absorption reversible under the different condition, heat-producing chemical reaction to finish the storage and the release of energy, its advantage be thermal efficiency height, reaction fast, do not have mechanical moving-member, the source is easy, cheap, DEVELOPMENT PROSPECT is very tempting.
Chemical heat accumulation principle of the present invention can be with reversible The Representation Equation:
Ca(OH)
2(s)+Q＝CaO(s)+H
2O(g)
The new type high temperature chemical heat accumulation device that adopts high temeperature chemistry heat accumulating element of the present invention to constitute, logical heat transport fluid (steam) in the pipe.When heat transport fluid is flowed through the high temeperature chemistry heat accumulating element, give solid material Ca (OH) between the spirality fin with its thermal energy transfer of carrying
2, dehydration takes place in the solid material heat absorption, finishes the storage of heat energy; Otherwise, when CaO and steam generation compound reaction time, emit heat, finish exothermic process.Chemical reaction storage heater of the present invention can utilize the used heat about 200 ℃ to produce 400-500 ℃ heat.
Certainly, can control the needed time of calcium hydroxide dehydration by changing reactor inner member-chemical reaction core appearance and size.
The present invention under low pressure uses low-temperature heat source (used heat or solar heat) to carry out endothermic decomposition reaction accumulation of heat, under high pressure carries out the heat release recombination reaction and can obtain heat of high temperature.
(4) description of drawings
Fig. 1 is the structural representation of spirality external finned tube;
Wherein 1 is the heat-carrying agent import, the outlet of 2 heat-carrying agents
Fig. 2 is the profile of spirality external finned tube section A-A among Fig. 1;
Fig. 3-the 1st, the 25 order stainless steel mesh floor map of line footpath 0.27mm, Fig. 3-the 2nd, the profile of screen cloth section B-B;
Fig. 4-the 1st, high temeperature chemistry heat accumulating element vertical view of the present invention, Fig. 4-the 2nd, the C-C profile of Fig. 4-1;
Wherein I is the spirality external finned tube, and II is a stainless steel mesh, and 3 is CaO/Ca (OH)
2Solid material
Fig. 5 is the profile of storage heater of the present invention;
Wherein 7,8 is that heat transport fluid is imported and exported on the heat accumulating element, and 9,10 are the steam import and export
Fig. 6 is the cutaway view of Fig. 5.
Wherein 4 is the heat accumulating element shell, and 5 is heat-barrier material, and 6 is the tube bank in the housing
(5) specific embodiment
For example the present invention is done description in more detail below in conjunction with accompanying drawing:
In conjunction with Fig. 1-Fig. 4, the composition of high temeperature chemistry heat accumulating element of the present invention comprises spirality finned tube I, is filled with CaO/Ca (OH) between the fin of spirality finned tube
2Solid material 3 is at spirality finned tube and CaO/Ca (OH)
2Solid material outer wrapping stainless steel mesh II.The caliber 13mm of described spirality finned tube, spiral external diameter 26mm, pitch 3-5mm.Described stainless steel mesh is the 25 order stainless steel mesh of line footpath 0.27mm.
In conjunction with Fig. 5-Fig. 6, the composition of the storage heater that high temeperature chemistry heat accumulating element of the present invention constitutes comprises shell 4, wrap in the outer insulation material layer 5 of shell and be arranged in the tube bank 6 of shell; Described tube bank 6 is by spirality finned tube I, the CaO/Ca (OH) that fills between the fin of spirality finned tube
2Solid material 3 is wrapped in spirality finned tube and CaO/Ca (OH)
2The high temeperature chemistry heat accumulating element that the outer stainless steel mesh II of solid material constitutes rearranges; Shell heat-carrying agent import 7 and outlet 8 arranged up and down, side wall of outer shell has steam to import and export 9,10.Described tube bank is arranged in parallel by 52 high temeperature chemistry heat accumulating elements and forms.
Claims (6)
1, a kind of high temeperature chemistry heat accumulating element comprises the spirality finned tube, it is characterized in that: be filled with CaO/Ca (OH) between the fin of spirality finned tube
2Solid material is at spirality finned tube and CaO/Ca (OH)
2Solid material outer wrapping stainless steel mesh.
2, high temeperature chemistry heat accumulating element according to claim 1 is characterized in that: the caliber 13mm of described spirality finned tube, spiral external diameter 26mm, pitch 3-5mm.
3, high temeperature chemistry heat accumulating element according to claim 1 and 2 is characterized in that: described stainless steel mesh is the 25 order stainless steel mesh of line footpath 0.27mm.
4, a kind of storage heater based on the high temeperature chemistry heat accumulating element comprises shell, wraps in the outer insulation material layer of shell and is arranged in the tube bank of shell; It is characterized in that: described tube bank is by spirality finned tube, the CaO/Ca (OH) that fills between the fin of spirality finned tube
2Solid material is wrapped in spirality finned tube and CaO/Ca (OH)
2The high temeperature chemistry heat accumulating element that the outer stainless steel mesh of solid material constitutes rearranges; Shell heat-carrying agent import and outlet arranged up and down, side wall of outer shell has steam to import and export.
5, the storage heater based on the high temeperature chemistry heat accumulating element according to claim 4 is characterized in that: the described arrangement of described tube bank is in parallel.
6, according to claim 4 or 5 described storage heaters based on the high temeperature chemistry heat accumulating element, it is characterized in that: described tube bank is arranged in parallel by 52 high temeperature chemistry heat accumulating elements and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910072668A CN101644548A (en) | 2009-08-13 | 2009-08-13 | High-temperature chemical heat storage element and heat storage device based on high-temperature chemical heat storage element |
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| CN200910072668A CN101644548A (en) | 2009-08-13 | 2009-08-13 | High-temperature chemical heat storage element and heat storage device based on high-temperature chemical heat storage element |
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| CN101644548A true CN101644548A (en) | 2010-02-10 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102757771A (en) * | 2012-07-13 | 2012-10-31 | 中国科学院广州能源研究所 | Composite chemical heat storage material and preparation method thereof |
| CN103542752A (en) * | 2012-07-12 | 2014-01-29 | 爱信精机株式会社 | Chemical heat storage device |
| CN105378419A (en) * | 2013-07-12 | 2016-03-02 | 爱信精机株式会社 | Chemical thermal energy storage device |
| CN105651091A (en) * | 2016-02-19 | 2016-06-08 | 上海交通大学 | Heat transfer enhanced chemical heat storage device and heat storage system applying same |
| CN106066093A (en) * | 2016-06-10 | 2016-11-02 | 杨斌 | A kind of stainless steel finned tube heat exchanger |
| CN108627041A (en) * | 2018-05-07 | 2018-10-09 | 华南理工大学 | A kind of spiral plate type thermochemical high temperature energy storing-releasing reaction unit |
| CN109097003A (en) * | 2018-08-27 | 2018-12-28 | 上海交通大学 | With infiltrative heat chemistry heat accumulation shaped granule of optimization and preparation method thereof |
| CN109777373A (en) * | 2019-03-06 | 2019-05-21 | 北京理工大学 | Across the season heat accumulating of medium temperature |
| TWI834785B (en) * | 2018-12-20 | 2024-03-11 | 日商三菱動力股份有限公司 | Platy chemical thermal storage medium |
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2009
- 2009-08-13 CN CN200910072668A patent/CN101644548A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9714793B2 (en) | 2012-07-12 | 2017-07-25 | Aisin Seiki Kabushiki Kaisha | Chemical heat storage device including rotatable heat storage material accommodation unit |
| CN103542752A (en) * | 2012-07-12 | 2014-01-29 | 爱信精机株式会社 | Chemical heat storage device |
| CN103542752B (en) * | 2012-07-12 | 2017-12-01 | 爱信精机株式会社 | Chemical heat storage device |
| CN102757771B (en) * | 2012-07-13 | 2015-01-07 | 中国科学院广州能源研究所 | Composite chemical heat storage material and preparation method thereof |
| CN102757771A (en) * | 2012-07-13 | 2012-10-31 | 中国科学院广州能源研究所 | Composite chemical heat storage material and preparation method thereof |
| CN105378419A (en) * | 2013-07-12 | 2016-03-02 | 爱信精机株式会社 | Chemical thermal energy storage device |
| CN105378419B (en) * | 2013-07-12 | 2017-08-29 | 爱信精机株式会社 | Chemical heat storage device |
| CN105651091A (en) * | 2016-02-19 | 2016-06-08 | 上海交通大学 | Heat transfer enhanced chemical heat storage device and heat storage system applying same |
| CN106066093A (en) * | 2016-06-10 | 2016-11-02 | 杨斌 | A kind of stainless steel finned tube heat exchanger |
| CN108627041A (en) * | 2018-05-07 | 2018-10-09 | 华南理工大学 | A kind of spiral plate type thermochemical high temperature energy storing-releasing reaction unit |
| CN109097003A (en) * | 2018-08-27 | 2018-12-28 | 上海交通大学 | With infiltrative heat chemistry heat accumulation shaped granule of optimization and preparation method thereof |
| CN109097003B (en) * | 2018-08-27 | 2020-06-09 | 上海交通大学 | Thermochemical heat storage molded particle with optimized permeability and preparation method thereof |
| TWI834785B (en) * | 2018-12-20 | 2024-03-11 | 日商三菱動力股份有限公司 | Platy chemical thermal storage medium |
| CN109777373A (en) * | 2019-03-06 | 2019-05-21 | 北京理工大学 | Across the season heat accumulating of medium temperature |
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Open date: 20100210 |