CN109297332B - Heat accumulator structure - Google Patents
Heat accumulator structure Download PDFInfo
- Publication number
- CN109297332B CN109297332B CN201811292077.5A CN201811292077A CN109297332B CN 109297332 B CN109297332 B CN 109297332B CN 201811292077 A CN201811292077 A CN 201811292077A CN 109297332 B CN109297332 B CN 109297332B
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- CN
- China
- Prior art keywords
- heat
- bricks
- heat storage
- layer
- skeleton
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000011449 brick Substances 0.000 claims abstract description 95
- 238000005338 heat storage Methods 0.000 claims abstract description 62
- 238000010438 heat treatment Methods 0.000 claims abstract description 26
- 238000009413 insulation Methods 0.000 claims abstract description 6
- 238000012163 sequencing technique Methods 0.000 claims abstract description 5
- 239000012530 fluid Substances 0.000 claims description 10
- 239000011232 storage material Substances 0.000 claims description 10
- 238000005485 electric heating Methods 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 abstract description 17
- 150000003839 salts Chemical class 0.000 abstract description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 8
- 230000008859 change Effects 0.000 description 4
- 239000000395 magnesium oxide Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012782 phase change material Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Central Heating Systems (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
- Cookers (AREA)
Abstract
The invention discloses a heat accumulator structure, which adopts a mode that a framework layer and a heat accumulation layer are alternately stacked at intervals, so that not only can the stability of a heat accumulator body be increased, but also the heat accumulation layer can absorb heat from the upper surface and the lower surface, the whole heat accumulation capacity of the heat accumulator structure is better, and the heat accumulator body is provided with expansion joints which vertically extend along the length direction, so that the heat accumulator body is prevented from being mutually extruded when being deformed when being heated, and the heat accumulator body is deformed. The skeleton layer is used as the heating layer and adopts a mode of alternately sequencing skeleton bricks and heat storage bricks at intervals, so that the skeleton bricks can be utilized to enable the heat storage body to be firmer, and heat storage bricks can be utilized to store heat more limitedly. The heating device is placed in the groove formed in the framework brick, so that the insulation problem caused by salt seepage after the heat accumulating brick is in direct contact with the heating device is prevented.
Description
Technical Field
The invention relates to the technical field of heat storage, in particular to a heat accumulator structure.
Background
The traditional heat accumulating electric boiler mostly adopts sensible heat accumulation of materials such as magnesia bricks, and the magnesia bricks are often arranged in a mode of directly stacking the magnesia bricks due to higher strength of the materials such as magnesia bricks. With the continuous improvement of requirements on floor space, energy storage density and the like, the heat storage bricks adopting the latent heat type heat storage materials, such as phase change bricks based on composite phase change material heat storage materials, are development trend of the heat storage electric boiler, but because the strength of the phase change material bricks is insufficient, if a direct stacking mode is still adopted, deformation and even fracture can be generated in the phase change process, so that the phase change heat storage bodies collapse due to insufficient strength.
Disclosure of Invention
Therefore, the invention provides a heat accumulator structure, which solves the problem of poor stability of the heat accumulator formed by adopting the phase change brick body of the latent heat type heat storage material in the prior art.
The embodiment of the invention provides a heat accumulator structure, which comprises a heat accumulator body, wherein the heat accumulator body comprises skeleton layers and heat accumulating layers which are alternately stacked at intervals along the height direction; the skeleton layer comprises a plurality of skeleton bricks made of sensible heat type heat storage materials, and the heat storage layer comprises a plurality of heat storage bricks made of latent heat type heat storage materials.
Preferably, the skeletal brick is in contact with a heating device.
Preferably, the heating device is an electric heating wire, and the skeleton brick is provided with a placement groove for placing the electric heating wire along the extending direction.
Preferably, the skeleton brick comprises a first body and a second body which are buckled with each other, and a groove structure which can be combined into the placing groove is correspondingly formed on the opposite sides of the first body and the second body.
Preferably, a plurality of the heat storage bricks are connected along the extending direction to form a first brick row structure, the heat storage layer comprises a plurality of the first brick row structures arranged at intervals of first gaps in the width direction of the heat storage body, and the first gaps form fluid channels which allow heat exchange fluid to flow through the heat storage body along the length direction of the heat storage body.
Preferably, a plurality of framework bricks are connected along the extending direction to form a second brick row structure, and the first brick row structure and the second brick row structure in the adjacent framework layer and the heat storage layer are vertically arranged.
Preferably, the heat accumulator body is provided with at least one vertically extending expansion slit along the length direction; the expansion joints are positioned between adjacent framework bricks and between adjacent heat accumulating bricks.
Preferably, the thermal insulation cotton is plugged in the expansion joint.
Preferably, the second tile row structures in the framework layer are arranged at intervals of a second gap; and the second gaps corresponding to the positions, which are not the expansion joints, of the two side surfaces in the length direction of the heat accumulator body are filled with the heat accumulating bricks.
Preferably, the heat accumulator structure further comprises a top layer structure covering the top layer of the heat accumulator body, and the top layer structure is formed by stacking the heat accumulating bricks along an extending plane.
Preferably, the heat accumulator structure further comprises a bottom layer base arranged at the bottom of the heat accumulator body, wherein the bottom layer base is formed by stacking a plurality of framework bricks in a horizontal arrangement mode or steel plates.
The technical scheme of the invention has the following advantages:
1. According to the heat accumulator structure, the skeleton layer and the heat accumulation layer are alternately stacked at intervals, and the heat accumulation brick made of the latent heat type heat accumulation material has the characteristic of high energy accumulation density and has good heat accumulation performance; the skeleton brick made of the heat-development type heat storage material has higher hardness, and plays a supporting role as a skeleton structure of the heat accumulator structure, so that the stability of the heat accumulator body can be improved; and the heat accumulation layer can absorb heat from the upper surface and the lower surface, so that the whole heat accumulation capacity of the heat accumulation structure is better.
2. According to the heat accumulator structure provided by the invention, the heat accumulator body is provided with the expansion joints which extend vertically along the length direction, so that the heat accumulator body is prevented from being deformed and mutually extruded when the heat accumulating bricks are deformed when being heated.
3. According to the heat accumulator structure provided by the invention, the skeleton layer is used as the heating layer in a mode of alternately and alternately sequencing the skeleton bricks and the heat accumulating bricks, so that the skeleton bricks can be utilized to enable the heat accumulator body to be more stable, and the heat accumulating bricks can be utilized to accumulate heat to a greater extent.
4. According to the heat accumulator structure, the grooves are formed in the framework bricks to place the heating devices, the framework bricks are in direct contact with the heating devices, and the insulation problem of the heat accumulator bricks after salt infiltration is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a heat accumulator structure according to an embodiment of the present invention.
Reference numerals
1-A heat accumulator body; 11-a framework layer; 12-a heat storage layer; 2-top layer structure; 3-a bottom base;
4-skeleton bricks; 5-heat accumulating brick; 6-placing grooves; 41-a first body;
42-a second body; 111-a second tile row structure; 121-a first tile row structure; 122-fluid channel.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
The embodiment of the invention provides a heat accumulator structure, as shown in fig. 1, which comprises a heat accumulator body 1, wherein the heat accumulator body 1 comprises a framework layer 11 and a heat accumulator layer 12 which are alternately stacked at intervals along the height direction; the skeleton layer 11 includes a plurality of skeleton bricks 4 made of a sensible heat type heat storage material, and the heat storage layer 12 includes a plurality of heat storage bricks 5 made of a latent heat type heat storage material.
In the embodiment of the present invention, as shown in fig. 1, the skeleton layer 11 and the heat storage layer 12 are alternately stacked at intervals in such a manner that one skeleton layer 11 and one heat storage layer 12 are alternately stacked at intervals. However, the present invention is not limited thereto, and in other embodiments, the plurality of skeleton layers 11 and the one heat storage layer 12 may be alternately stacked at intervals, or any combination of the plurality of skeleton layers 11 and the plurality of heat storage layers 12 may be alternately stacked at intervals.
The skeleton layer 11 is used as a heating layer, and is alternately stacked with the heat storage layers 12 at intervals along the height direction, so that the stability of the heat storage body 1 can be improved, the heat storage layers 12 can absorb heat from the upper surface and the lower surface, and the whole heat storage capacity of the heat storage structure is better.
The skeleton brick 4 comprises a first body 41 and a second body 42 which are mutually buckled, and the opposite sides of the first body 41 and the second body 42 are correspondingly provided with groove structures which can be combined. The groove structure is a placing groove 6 for placing the heating wire. The first body 41 and the second body 42 are detachable, thereby facilitating the insertion and removal of the heating wire. The skeleton brick 4 of skeleton layer 11 and heating wire direct contact solve the insulating problem after the heat accumulation brick appears oozing salt.
In this embodiment, the heating device is an electric heating wire, and accordingly, the placement groove 6 is a cylindrical groove in shape. The heating means is not limited to heating wires, but may be heating pipes, heating sheets, etc. in other embodiments, and the shape of the placement groove 6 corresponds to the shape of the heating means.
The plurality of heat storage bricks 5 are connected in the extending direction to form a first brick row structure 121, and the heat storage layer 12 includes a plurality of first brick row structures 121 arranged at intervals of a first gap in the width direction of the heat storage body 1, the first gap forming a fluid channel 122 allowing a heat exchange fluid to flow through the heat storage body 1 in the length direction of the heat storage body 1, and the heat exchange fluid in the embodiment of the present invention is air, but is not limited thereto, and may be other fluid media in other embodiments.
The plurality of framework bricks 3 are connected along the extending direction to form a second brick row structure 111, the first brick row structure 121 and the second brick row structure 111 in the adjacent framework layers 11 and the heat storage layers 12 are vertically arranged, and the stacking mode of the vertical arrangement of the first brick row structure 121 and the second brick row structure 111 ensures that the heat storage body structure is stable.
The heat accumulator body 1 is provided with at least one expansion joint extending vertically along the length direction; the expansion joints are positioned between adjacent framework bricks 4 and between adjacent heat accumulating bricks 5. The expansion gaps can prevent the heat storage bricks 5 from deforming when encountering heat and extruding each other so that the heat storage body 1 deforms, and the arrangement of the expansion gaps can enable the structure of the heat storage body 1 to be firmer.
The thermal insulation cotton is plugged in the expansion gaps, so that heat exchange fluid can be prevented from overflowing from the expansion gaps, and the heat storage effect is prevented from being influenced.
The second brick row structures 111 in the framework layer 11 are arranged at intervals of a second gap; the second gaps corresponding to the non-expansion joint positions in the both side surfaces in the longitudinal direction of the heat accumulator body 1 are filled with heat accumulating bricks 5. Namely, the skeleton layer 11 is used as a heating layer and adopts a mode of alternately and alternately sequencing the skeleton bricks 4 and the heat storage bricks 5, so that the skeleton bricks 4 can be utilized to enable the heat accumulator body 1 to be more stable, and the heat storage bricks 5 can also be utilized to store heat more limitedly.
The heat accumulator structure further comprises a top layer structure 2 covered on the top layer of the heat accumulator body 1, the top layer structure 2 is formed by stacking heat accumulating bricks along an extending plane, and the top layer structure 2 is covered on the top layer of the heat accumulator body, so that the whole heat accumulator structure has better heat accumulating capacity.
The bottom of the heat accumulator body 1 is provided with a bottom base 3, and the bottom base 3 is made of steel plates or is formed by horizontally arranging and piling a plurality of framework bricks. The bottom base 3 can serve to level and support the heat accumulator body 1.
According to the heat accumulator structure provided by the invention, the skeleton layer and the heat accumulation layers are alternately stacked at intervals, so that not only can the stability of the heat accumulator body be increased, but also the heat accumulation layers can absorb heat from the upper surface and the lower surface, the whole heat accumulation capacity of the heat accumulator structure is better, and the heat accumulator body is provided with the expansion gaps extending vertically along the length direction, so that the heat accumulator body is prevented from being deformed and extruded mutually when the heat accumulation bricks are heated, and the deformation is caused. The skeleton layer is used as the heating layer and adopts a mode of alternately sequencing skeleton bricks and heat storage bricks at intervals, so that the skeleton bricks can be utilized to enable the heat storage body to be firmer, and heat storage bricks can be utilized to store heat more limitedly. The heating device is placed in the groove formed in the framework brick, so that the insulation problem caused by salt seepage after the heat accumulating brick is in direct contact with the heating device is prevented.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present invention.
Claims (7)
1. A thermal mass structure, characterized in that: the heat accumulator comprises a heat accumulator body, wherein the heat accumulator body comprises skeleton layers and heat accumulating layers which are alternately stacked at intervals along the height direction; the skeleton layer comprises a plurality of skeleton bricks made of sensible heat type heat storage materials, and the heat storage layer comprises a plurality of heat storage bricks made of latent heat type heat storage materials;
the skeleton layer is used as a heating layer in a mode of alternately and alternately sequencing skeleton bricks and heat accumulating bricks;
The framework bricks are in contact with the heating device, and a placement groove for placing the heating device is formed in the framework bricks along the extending direction;
the plurality of framework bricks are connected along the extending direction to form a second brick row structure;
the heat accumulator body is provided with at least one expansion joint extending vertically along the length direction; the expansion gaps are positioned between adjacent framework bricks and between adjacent heat storage bricks;
the thermal insulation cotton is plugged in the expansion joint;
The second brick row structures in the framework layer are arranged at intervals of a second gap; and the second gaps corresponding to the positions, which are not the expansion joints, of the two side surfaces in the length direction of the heat accumulator body are filled with the heat accumulating bricks.
2. The thermal mass structure of claim 1, wherein: the heating device is an electric heating wire.
3. The thermal mass structure of claim 2, wherein: the skeleton brick comprises a first body and a second body which are buckled with each other, and a groove structure which can be combined into the placing groove is correspondingly formed on the opposite sides of the first body and the second body.
4. A heat accumulator structure according to any one of claims 1-3, characterized in that: the heat storage bricks are connected in the extending direction to form a first brick row structure, the heat storage layer comprises a plurality of first brick row structures which are arranged at intervals of first gaps in the width direction of the heat storage body, and the first gaps form fluid channels which allow heat exchange fluid to flow through the heat storage body along the length direction of the heat storage body.
5. The thermal mass structure of claim 4, wherein: the first brick row structures and the second brick row structures in adjacent skeleton layers and heat storage layers are vertically arranged.
6. The thermal mass structure of claim 5, wherein: the heat accumulator body is characterized by further comprising a top layer structure covered on the top layer of the heat accumulator body, wherein the top layer structure is formed by stacking heat accumulating bricks along an extending plane.
7. The thermal mass structure of claim 6, wherein: the heat accumulator comprises a heat accumulator body and is characterized by further comprising a bottom layer base arranged at the bottom of the heat accumulator body, wherein the bottom layer base is made of steel plates or is formed by horizontally arranging and piling a plurality of framework bricks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811292077.5A CN109297332B (en) | 2018-10-30 | 2018-10-30 | Heat accumulator structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811292077.5A CN109297332B (en) | 2018-10-30 | 2018-10-30 | Heat accumulator structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109297332A CN109297332A (en) | 2019-02-01 |
| CN109297332B true CN109297332B (en) | 2024-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811292077.5A Active CN109297332B (en) | 2018-10-30 | 2018-10-30 | Heat accumulator structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN109297332B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974064A (en) * | 2019-04-16 | 2019-07-05 | 南京金合能源材料有限公司 | Mobile phase-change heat accumulation system based on the heating of charging pile electricity |
| CN111947491B (en) * | 2020-09-16 | 2024-08-27 | 全球能源互联网研究院有限公司 | A hybrid heat storage device and heating method |
| CN114110646B (en) * | 2021-11-18 | 2023-11-07 | 新兴铸管股份有限公司 | Honeycomb heat accumulator connection structure for heat accumulating type heating furnace |
| CN114739008A (en) * | 2022-04-25 | 2022-07-12 | 安徽安泽电工有限公司 | Solid heat storage device with low maintenance cost |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104142079A (en) * | 2013-05-07 | 2014-11-12 | 北京兆阳光热技术有限公司 | Heat storage-heat exchange equipment |
| CN107906993A (en) * | 2017-10-31 | 2018-04-13 | 全球能源互联网研究院有限公司 | A kind of supporting structure of heat-storing device |
| CN108362152A (en) * | 2018-03-28 | 2018-08-03 | 辽宁山江电力有限公司 | Mortise and tenon type gitter brick and high efficient heat exchanging solid heat storage body |
| CN209310586U (en) * | 2018-10-30 | 2019-08-27 | 全球能源互联网研究院有限公司 | A thermal storage structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101717097B1 (en) * | 2015-08-28 | 2017-03-16 | 주식회사 경동나비엔 | Heat exchanger |
| JP2017133713A (en) * | 2016-01-25 | 2017-08-03 | 学校法人早稲田大学 | Thermal storage body and air conditioning system using the same |
-
2018
- 2018-10-30 CN CN201811292077.5A patent/CN109297332B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104142079A (en) * | 2013-05-07 | 2014-11-12 | 北京兆阳光热技术有限公司 | Heat storage-heat exchange equipment |
| CN107906993A (en) * | 2017-10-31 | 2018-04-13 | 全球能源互联网研究院有限公司 | A kind of supporting structure of heat-storing device |
| CN108362152A (en) * | 2018-03-28 | 2018-08-03 | 辽宁山江电力有限公司 | Mortise and tenon type gitter brick and high efficient heat exchanging solid heat storage body |
| CN209310586U (en) * | 2018-10-30 | 2019-08-27 | 全球能源互联网研究院有限公司 | A thermal storage structure |
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| Publication number | Publication date |
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| CN109297332A (en) | 2019-02-01 |
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