CN115164630A - Rotary type heat exchange-enhanced phase change heat storage device - Google Patents
Rotary type heat exchange-enhanced phase change heat storage device Download PDFInfo
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- CN115164630A CN115164630A CN202210724143.1A CN202210724143A CN115164630A CN 115164630 A CN115164630 A CN 115164630A CN 202210724143 A CN202210724143 A CN 202210724143A CN 115164630 A CN115164630 A CN 115164630A
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- heat storage
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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
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
- F28D20/021—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat the latent heat storage material and the heat-exchanging means being enclosed in one container
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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
- F28D11/00—Heat-exchange apparatus employing moving conduits
- F28D11/02—Heat-exchange apparatus employing moving conduits the movement being rotary, e.g. performed by a drum or roller
- F28D11/04—Heat-exchange apparatus employing moving conduits the movement being rotary, e.g. performed by a drum or roller performed by a tube or a bundle of tubes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F5/00—Elements specially adapted for movement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
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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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- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to a rotary type heat exchange-enhanced phase-change heat storage device which comprises a heat storage shell, a rotating device, a phase-change heat storage unit and a heat exchange runner, wherein the heat storage shell comprises a heat storage shell, a heat exchange medium inlet and a heat exchange medium outlet are formed in the heat storage shell, the rotating device comprises a first rotating disc, a second rotating disc and a rotating shaft, the phase-change heat storage unit comprises a heat storage pipe and a phase-change material assembly, the heat storage pipe comprises a heat storage pipe inner cylinder, a heat storage pipe outer cylinder and a heat storage pipe wall, and the heat exchange runner comprises a first fluid channel and a second fluid channel. Compared with the prior art, the invention has the advantages of high heat exchange efficiency, good heat exchange uniformity, small flow resistance, small pressure drop of the phase change heat storage device, simple device, wide application and the like.
Description
Technical Field
The invention relates to the technical field of heat storage, in particular to a rotary type heat exchange-enhanced phase-change heat storage device.
Background
The renewable energy technology with low cost, stability and reliability is the key for realizing two major goals of 'carbon peak reaching' and 'carbon neutralization' in China in the future. However, renewable energy sources such as solar energy and wind energy generally have the characteristics of fluctuation and intermittency, so that the supply and the demand of the renewable energy sources are not matched in time, space and intensity. In order to ensure the flexibility and stability of the operation of the renewable energy system and improve the energy utilization rate, various energy storage technologies such as electricity storage, heat storage and cold storage need to be considered comprehensively. In the energy storage technology, the heat storage technology stores energy in the form of heat energy, and by 11 months in 2020, the scale of a global heat storage system is about 234GWh, and the scale of a global heat storage market is expected to be increased by 2 times in 2030, so that the heat storage system has a large popularization potential. In addition, more than 90% of the energy around the world is finally utilized in the form of heat energy, so the heat storage technology also has wider application space. The heat storage technology can be divided into sensible heat storage, latent heat storage and thermochemical heat storage according to the form of heat storage. Latent heat storage, also known as phase change thermal storage, is a method of storing and releasing heat energy by utilizing the characteristic that a phase change material absorbs and releases latent heat of phase change in the phase change process. Compared with sensible heat storage and thermochemical heat storage, the phase change heat storage has the advantages of high energy storage density, constant-temperature heat storage and release, convenience in temperature control, wide application range and the like. Therefore, the phase change heat storage technology has wide application and development prospects in the fields of waste heat recycling, solar heating, battery thermal management systems, green buildings, solar thermal power stations and the like, and development of the phase change heat storage device structure with efficient heat exchange and the phase change material with high performance plays a decisive role in application of the phase change heat storage technology.
The phase change heat storage device is composed of a plurality of phase change heat storage units and a heat exchange flow channel, a heat exchange medium flows in the flow channel and exchanges heat with phase change materials in the phase change heat storage units through a heat exchange wall surface, and therefore heat storage and release are achieved.
For the phase change heat storage unit, the shape thereof is various, including rectangular, spherical, cylindrical, annular, and the like. The phase change heat storage devices of different shapes have larger difference in heat storage and release characteristics, and the selection of a phase change heat storage unit of a proper shape is very important for designing a high-efficiency phase change heat storage system. The researches on the melting characteristics of the phase-change heat storage device with rectangular, cylindrical and concentric sleeves with the same volume and heat exchange area compare performance parameters such as average convective heat transfer coefficient, melting time and the like, and the researches show that the concentric sleeve type heat storage device has the minimum time under the condition of storing the same heat and has more obvious advantages along with the increase of the filling amount of the phase-change material. Therefore, the sleeve type phase change heat storage device has a wider application prospect compared with other shapes due to high heat exchange efficiency and compact structure.
For the heat exchange flow channel, the structure is a framework of the phase change energy storage technology. In order to improve the heat exchange effect, most of the current work considers increasing the heat exchange area and increasing the heat exchange uniformity of the phase change heat storage device, and the methods of increasing fins, adopting a corrugated plate or a porous structure and the like are adopted. However, increasing the heat exchange area increases the complexity of the phase change heat storage container, increases the manufacturing cost, and further decreases the amount of the phase change material to be loaded. In addition, the main heat exchange part of the traditional phase change heat accumulator is static, and in order to increase the total heat exchange coefficient, the Reynolds number is increased by increasing the flow velocity of a heat exchange medium, so that the heat exchange effect is improved. However, since the resistance is quadratic to the flow rate, the pressure drop increases as the flow rate of the heat exchange medium increases, and therefore, only a balance between the flow rate and the pressure drop can be found. In addition, in the process that the heat exchange medium flows along the flow, the temperature difference between the heat exchange medium and the phase-change material is smaller and smaller, so that the phase-change heat storage units near the outlet of the heat accumulator cannot effectively store and release heat, and the phase-change material cannot be completely melted and solidified in the heat exchange process, so that the temperature and the thermal stress generated by the temperature and the thermal stress are not uniformly distributed, and further, the service lives of the phase-change material and the heat storage device material are shortened. Therefore, it is necessary to optimize the phase change heat storage device structure.
Disclosure of Invention
The invention aims to overcome the defects of the prior art that the service lives of a phase-change material and a heat storage device are shortened due to uneven distribution of temperature and thermal stress, the pressure drop and the energy consumption are increased due to the increase of the flow velocity of a heat exchange medium, the complexity of the device is increased, the manufacturing cost is increased, and the filling amount of the phase-change material is reduced due to the increase of the heat exchange area of the phase-change heat storage device, so that the rotary type enhanced heat exchange phase-change heat storage device is provided.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a heat transfer phase change heat accumulation device is reinforceed to rotation type, includes heat accumulation casing, rotary device, phase change heat accumulation unit and heat transfer runner, the heat accumulation casing includes the heat accumulation shell, be equipped with heat transfer medium entry and heat transfer medium export on the heat accumulation shell, rotary device includes first carousel, second carousel and pivot, the phase change heat accumulation unit includes heat accumulation pipe and phase change material subassembly, the heat accumulation pipe includes heat accumulation pipe inner tube, heat accumulation pipe urceolus and heat accumulation pipe wall, the heat transfer runner includes first fluid passageway and second fluid passageway.
The heat exchange medium inlet and the heat exchange medium outlet are respectively located at two ends of the heat storage shell, the heat storage shell is of a non-detachable structure or a detachable structure, and the detachable structure comprises a detachable cover plate and a fastening piece.
The center positions of two ends of the heat storage shell are respectively provided with a fixing hole, and the rotating shaft is arranged in the fixing holes and is respectively connected with the first rotating disc and the second rotating disc.
Further, the rotating shaft can be connected with an external power device, or can be not connected with the external power device under the premise of external power environment, such as vibration and the like.
The first turntable and the second turntable are both provided with a plurality of circular grooves, the circular grooves are arranged in a circumferential array mode, and the circular grooves of the first turntable and the circular grooves of the second turntable are in one-to-one correspondence.
Furthermore, through holes are formed in the centers of the circular grooves of the first rotating disc and the second rotating disc, and the aperture of each through hole is the diameter of the inner cylinder of the heat storage pipe.
Furthermore, all be equipped with many heat accumulation pipes on the circular slot of first carousel and second carousel, the heat accumulation pipe adopts the mode of circumference array to arrange, the type of heat accumulation pipe includes pipe, elliptical tube, square pipe, straight tube and reducing pipe.
The heat storage pipe is made of metal or nonmetal materials.
The phase change heat storage unit adopts a sleeve type structure, and the phase change material component is arranged between the heat storage pipe inner cylinder and the heat storage pipe outer cylinder.
Furthermore, heat storage tube fins are further arranged between the heat storage tube inner cylinder and the heat storage tube outer cylinder, and the types of the heat storage tube fins comprise annular fins, longitudinal fins and spiral fins.
Furthermore, the phase change material component is made of inorganic phase change materials, organic phase change materials, eutectic phase change materials or modified composite phase change materials.
A first fluid channel is formed between the heat storage pipe outer cylinder and the heat storage shell, and a second fluid channel is formed between the heat storage pipe inner cylinders.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention has high heat exchange efficiency. On the one hand, in the phase change heat storage device in-service work, through rotary device's setting, can rotate the phase change heat storage unit, increased the kinetic energy of the inside heat transfer medium of phase change heat storage device, the heat transfer medium constantly strikes the heat-transfer surface, has strengthened the inside convection heat transfer coefficient of phase change heat storage device. On the other hand, the phase change heat storage unit adopts a sleeve type structure, and is combined with the first fluid channel and the second fluid channel, so that the contact area between the heat exchange medium in the phase change heat storage device and the phase change heat storage unit is increased, the heat accumulation phenomenon can be effectively slowed down, and the heat storage and release time of the phase change heat storage unit is obviously shortened.
2. The invention has good heat exchange uniformity. Due to the double functions of the rotary device and the sleeve type phase change heat storage unit, the heat exchange uniformity of the phase change heat storage device is further improved, and the phenomena that the local phase change material cannot be melted and the local thermal stress of the phase change heat storage device is too high can be reduced or even avoided.
3. The phase change heat storage device has small flow resistance and small pressure drop, and has lower energy consumption for achieving the same heat exchange effect compared with the traditional phase change heat storage device. Because the heat exchange coefficient is not increased by improving the flow velocity of the heat exchange medium, the heat exchange medium can enter the fluid channel at a low speed, so that the flow resistance is greatly reduced, and the power required for conveying the heat exchange medium is reduced.
4. The device is simple, compact in structure, wide in application, convenient to manufacture, install and maintain, and can flexibly change the structural parameters of the phase change heat storage device according to different application occasions and operation conditions.
Drawings
FIG. 1 is a schematic view of a phase change thermal storage device according to the present invention;
FIG. 2 is a front view of a first embodiment of the phase change thermal storage apparatus of the present invention;
FIG. 3 isbase:Sub>A sectional view taken along line A-A ofbase:Sub>A first embodiment of the phase change heat storage device of the present invention;
fig. 4 is a sectional view taken along line B-B of a first embodiment of the phase-change heat storage device of the present invention;
FIG. 5 is a schematic diagram illustrating an internal structure of a phase-change heat storage device according to a first embodiment of the present invention;
FIG. 6 is a front view showing an internal structure of a phase-change heat storage device according to an embodiment of the present invention;
fig. 7 is a C-C sectional view of an internal structure of the phase-change heat storage device according to the embodiment of the present invention;
FIG. 8 is a D-D sectional view showing an internal structure of a phase-change heat storage device according to an embodiment of the present invention;
FIG. 9 is a schematic structural diagram of a heat storage tube according to an embodiment of the phase-change heat storage device of the present invention;
FIG. 10 is a front view of a heat storage tube of an embodiment of the phase change heat storage device of the present invention;
FIG. 11 is a cross-sectional view taken along line E-E of a heat storage tube in accordance with an embodiment of the phase change heat storage device of the present invention;
FIG. 12 is a sectional view taken along line F-F of a heat storage tube in accordance with an embodiment of the phase change heat storage device of the present invention;
FIG. 13 is a sectional view taken along line F-F of a triple heat storage tube in accordance with an embodiment of the phase change heat storage device of the present invention;
fig. 14 is a schematic structural view of a second phase-change heat storage device according to an embodiment of the present invention;
fig. 15 is a front view of a second phase-change heat storage device according to an embodiment of the present invention;
fig. 16 is a sectional view taken along line G-G of a second phase-change heat storage device according to a second embodiment of the present invention;
fig. 17 is a sectional view taken along line H-H of a second phase change heat storage device according to an embodiment of the present invention.
Reference numerals are as follows:
1-a thermal storage housing; 2-inner cylinder of heat storage tube; 3-a first carousel; 4-outer cylinder of heat storage tube; 5-a heat exchange medium inlet; 6-a rotating shaft; 7-a second turntable; 8-a heat exchange medium outlet; 9-a phase change material component; 10-a first fluid channel; 11-a second fluid channel; 12-heat storage tube wall; 13-heat storage tube fins; 14-a removable cover plate; 15-a fastener;
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1, a rotation type heat exchange-enhanced phase change heat storage device, which comprises a heat storage shell, a rotation device, a phase change heat storage unit and a heat exchange flow channel, wherein the heat storage shell comprises a heat storage shell 1, a heat exchange medium inlet 5 and a heat exchange medium outlet 8 are arranged on the heat storage shell 1, the rotation device comprises a first rotary plate 3, a second rotary plate 7 and a rotating shaft 6, the phase change heat storage unit comprises a heat storage tube and a phase change material assembly 9, the heat storage tube comprises a heat storage tube inner tube 2, a heat storage tube outer tube 4 and a heat storage tube wall 12, and the heat exchange flow channel comprises a first fluid channel 10 and a second fluid channel 11.
The heat exchange medium inlet 5 and the heat exchange medium outlet 8 are respectively provided at both ends of the heat storage housing 1, and the heat storage housing is of a non-detachable structure or a detachable structure including a detachable cover plate 14 and a fastening member 15.
The central positions of the two ends of the heat accumulation shell 1 are respectively provided with a fixing hole, and the rotating shaft 6 is arranged in the fixing holes and respectively connected with the first rotating disc 3 and the second rotating disc 7.
The rotating shaft 6 may be connected to an external power device, or may not be connected to an external power device under the premise of an external power environment, such as vibration.
The first rotating disc 3 and the second rotating disc 7 are both provided with a plurality of circular grooves which are arranged in a circumferential array mode, and the circular grooves of the first rotating disc 3 and the second rotating disc 7 are in one-to-one correspondence.
Through holes are formed in the centers of the circular grooves of the first rotary disc 3 and the second rotary disc 7, and the aperture of each through hole is the diameter of the inner cylinder 2 of the heat storage pipe.
All be equipped with many heat accumulation pipes on the circular slot of first carousel 3 and second carousel 7, the heat accumulation pipe adopts the mode of circumference array to arrange, and the type of heat accumulation pipe includes pipe, oval pipe, square pipe, straight tube and reducing pipe.
The heat storage pipe is made of metal or nonmetal materials.
The phase change heat storage unit adopts a sleeve type structure, and the phase change material component 9 is arranged between the heat storage pipe inner cylinder 2 and the heat storage pipe outer cylinder 4.
Heat storage tube fins 13 are further arranged between the heat storage tube inner cylinder 2 and the heat storage tube outer cylinder 4, and the types of the heat storage tube fins 13 comprise annular fins, longitudinal fins and spiral fins.
The phase change material component 9 is made of inorganic phase change materials, organic phase change materials, eutectic phase change materials or modified composite phase change materials.
A first fluid channel 10 is formed between the heat storage pipe outer cylinder 4 and the heat storage shell, and a second fluid channel 11 is formed between the heat storage pipe inner cylinders 2.
Example one
The embodiment is a non-detachable rotary type enhanced heat exchange phase change heat storage device. Fig. 1 to 12 are schematic views ofbase:Sub>A first embodiment of the present invention, in which fig. 1 isbase:Sub>A schematic view of an entire structure of the first embodiment, fig. 2 isbase:Sub>A front view of the first embodiment, fig. 3 isbase:Sub>A sectional view taken alongbase:Sub>A linebase:Sub>A-base:Sub>A of the first embodiment, fig. 4 isbase:Sub>A sectional view taken alongbase:Sub>A line B-B of the first embodiment, fig. 5 isbase:Sub>A schematic view of an internal structure, fig. 6 isbase:Sub>A front view of an internal structure, fig. 7 isbase:Sub>A sectional view taken alongbase:Sub>A line C-C of an internal structure, fig. 8 isbase:Sub>A sectional view taken alongbase:Sub>A line D-D of an internal structure, fig. 9 isbase:Sub>A schematic view ofbase:Sub>A structure ofbase:Sub>A heat storage tube, fig. 10 isbase:Sub>A front view ofbase:Sub>A heat storage tube, fig. 11 isbase:Sub>A sectional view taken alongbase:Sub>A line E-E ofbase:Sub>A heat storage tube, and fig. 12 isbase:Sub>A sectional view taken alongbase:Sub>A line F-F ofbase:Sub>A heat storage tube.
In specific implementation, for the heat exchange component, the rotating shaft 6 is driven by external power, then the first rotating disc 3 and the second rotating disc 7 are driven by the rotating shaft 6, and then the phase change heat storage unit is driven by the first rotating disc 3 and the second rotating disc 7 to rotate. For the heat exchange medium, it first enters the first fluid channel 10 through the heat exchange medium inlet 5 of the thermal storage housing. Then, the fluid enters the second fluid channel 11 through the through hole on the first rotating disk 3, and the flow is distributed to each phase change heat storage unit. The heat exchange medium entering the second fluid channel 11 passes through the through holes on the second rotating disc 7 and returns to the first fluid channel 10 again. And finally, the heat exchange medium flows out of the phase change heat storage device through the heat exchange medium outlet 8 of the heat storage shell to complete a heat exchange process. For the phase change heat storage unit, in the melting heat storage process, a high-temperature heat exchange medium exchanges heat with the solid phase change material component 9 in the heat storage pipe through the pipe wall 12 of the heat storage pipe, the solid phase change material component 9 starts to melt after absorbing enough heat, and finally, the solid phase change material component and the solid phase change material component are completely changed into liquid, so that the whole heat storage process is completed. And in the solidification heat release process, the low-temperature heat exchange medium exchanges heat with the liquid phase-change material component 9 in the heat storage pipe through the heat storage pipe wall 12, the temperature of the liquid phase-change material component 9 gradually decreases along with the heat exchange, and when the temperature of the liquid phase-change material component 9 is reduced to the phase-change solidifying point, the form of the liquid phase-change material component is changed, and the liquid phase-change material component is changed into a solid state from the liquid state, so that the whole heat release process is completed. The reciprocating melting/solidification cycle can realize the storage and release of heat.
Example two
The embodiment is a detachable rotary type enhanced heat exchange phase change heat storage device. Fig. 14 to 17 are schematic diagrams of a second embodiment of the present invention, wherein fig. 14 is a schematic structural diagram of the second embodiment, fig. 15 is a front view of the second embodiment, fig. 16 is a sectional view from G to G of the second embodiment, and fig. 17 is a sectional view from H to H of the second embodiment. The specific implementation process of this embodiment is the same as that of the first embodiment, and the difference is that the heat storage housing of this embodiment includes a detachable cover plate 14 and a fastening member 15, in addition to the heat storage housing 1, the heat exchange medium inlet 5 and the heat exchange medium outlet 8, and has a detachable function.
EXAMPLE III
The embodiment is a rotary type heat exchange-enhancing phase-change heat storage device with heat exchange enhancement on the phase-change material side. FIG. 13 is a sectional view taken along line F-F of the third embodiment of the present invention. The specific implementation process of this embodiment is the same as that of the first embodiment, except that the heat storage tube fins 13 are added to the phase-change material side in the phase-change heat storage unit of this embodiment, so as to achieve the purpose of heat exchange enhancement at the phase-change material side. In addition, materials with excellent heat conductivity, such as foam metal, nano materials, expanded graphite, and the like, can be added into the phase change material assembly 9.
Example four
The embodiment is a rotary type heat exchange-enhanced phase-change heat storage device with variable diameters of heat storage pipes. The specific implementation process of this embodiment is the same as that of the first embodiment, and the difference is that the heat storage tube in the phase-change heat storage unit of this embodiment is set to be in a variable-diameter form, so that the heat exchange effect can be further improved.
EXAMPLE five
The embodiment is a rotary type heat exchange enhancement phase change heat storage device with microchannels. The specific implementation process of this embodiment is the same as that of the first embodiment, except that the second fluid channel 11 of this embodiment is configured in the form of a micro-channel, which can further improve the heat exchange effect.
In addition, it should be noted that the specific embodiments described in the present specification may have different names, and the above descriptions in the present specification are only illustrations of the structures of the present invention. All equivalent or simple changes in the structure, characteristics and principles of the invention are included in the protection scope of the invention. Various modifications or additions may be made to the described embodiments or methods may be similarly employed by those skilled in the art without departing from the scope of the invention as defined in the appending claims.
Claims (10)
1. The utility model provides a heat transfer phase change heat storage device is reinforceed to rotation type, its characterized in that, includes heat accumulation casing, rotary device, phase change heat accumulation unit and heat transfer runner, the heat accumulation casing includes heat accumulation shell (1), be equipped with heat transfer medium entry (5) and heat transfer medium export (8) on heat accumulation shell (1), rotary device includes first carousel (3), second carousel (7) and pivot (6), the phase change heat accumulation unit includes heat accumulation pipe and phase change material subassembly (9), the heat accumulation pipe includes heat accumulation pipe inner tube (2), heat accumulation pipe urceolus (4) and heat accumulation pipe wall (12), the heat transfer runner includes first fluid passage (10) and second fluid passage (11).
2. A rotary type heat exchange enhancing phase change heat storage device according to claim 1, wherein the heat exchange medium inlet (5) and the heat exchange medium outlet (8) are respectively located at two ends of the heat storage housing (1), the heat storage housing is of a non-detachable structure or a detachable structure, and the detachable structure comprises a detachable cover plate (14) and a fastening member (15).
3. The rotary type heat exchange-enhanced phase-change heat storage device according to claim 1, wherein the heat storage housing (1) is provided with fixing holes at the center of the two ends, and the rotating shaft (6) is arranged in the fixing holes and connected with the first rotating disc (3) and the second rotating disc (7) respectively.
4. The rotary type heat exchange-enhanced phase-change heat storage device according to claim 1, wherein the first rotary disk (3) and the second rotary disk (7) are provided with a plurality of circular grooves, the circular grooves are arranged in a circumferential array, and the circular grooves of the first rotary disk (3) and the circular grooves of the second rotary disk (7) are in one-to-one correspondence.
5. A rotary type heat-exchange-enhanced phase-change heat storage device according to claim 4, characterized in that the centers of the circular grooves of the first rotary disk (3) and the second rotary disk (7) are provided with through holes, and the diameter of the through holes is equal to the diameter of the inner cylinder (2) of the heat storage tube.
6. The rotary type heat exchange-enhanced phase-change heat storage device according to claim 4, wherein a plurality of heat storage pipes are arranged on the circular grooves of the first rotary disc (3) and the second rotary disc (7), the heat storage pipes are arranged in a circumferential array, and the types of the heat storage pipes comprise circular pipes, elliptical pipes, square pipes, straight pipes and reducer pipes.
7. The rotary type heat exchange-enhanced phase-change heat storage device according to claim 1, wherein the phase-change heat storage unit is of a sleeve type structure, and the phase-change material assembly (9) is arranged between the heat storage pipe inner cylinder (2) and the heat storage pipe outer cylinder (4).
8. The rotary type heat-exchange-enhancing phase-change heat storage device according to claim 7, wherein heat storage tube fins (13) are further arranged between the heat storage tube inner barrel (2) and the heat storage tube outer barrel (4), and the types of the heat storage tube fins (13) comprise annular fins, longitudinal fins and spiral fins.
9. The rotary type heat exchange-enhanced phase-change heat storage device according to claim 7, wherein the phase-change material component (9) is made of inorganic phase-change materials, organic phase-change materials, eutectic phase-change materials or modified composite phase-change materials.
10. A rotary type heat-exchange enhancement phase-change heat storage device according to claim 1, wherein a first fluid channel (10) is formed between the heat storage tube outer cylinder (4) and the heat storage shell, and a second fluid channel (11) is formed between the heat storage tube inner cylinders (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210724143.1A CN115164630A (en) | 2022-06-23 | 2022-06-23 | Rotary type heat exchange-enhanced phase change heat storage device |
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| CN202210724143.1A CN115164630A (en) | 2022-06-23 | 2022-06-23 | Rotary type heat exchange-enhanced phase change heat storage device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116987833A (en) * | 2023-09-25 | 2023-11-03 | 包钢集团节能环保科技产业有限责任公司 | Hot air energy storage unit and molten steel slag waste heat recovery and utilization system |
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2022
- 2022-06-23 CN CN202210724143.1A patent/CN115164630A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116987833A (en) * | 2023-09-25 | 2023-11-03 | 包钢集团节能环保科技产业有限责任公司 | Hot air energy storage unit and molten steel slag waste heat recovery and utilization system |
| CN116987833B (en) * | 2023-09-25 | 2023-12-12 | 包钢集团节能环保科技产业有限责任公司 | Hot air energy storage unit and molten steel slag waste heat recovery and utilization system |
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