CN110986646A - Novel flow guide partition plate phase change heat storage unit structure - Google Patents
Novel flow guide partition plate phase change heat storage unit structure Download PDFInfo
- Publication number
- CN110986646A CN110986646A CN201911241378.XA CN201911241378A CN110986646A CN 110986646 A CN110986646 A CN 110986646A CN 201911241378 A CN201911241378 A CN 201911241378A CN 110986646 A CN110986646 A CN 110986646A
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- CN
- China
- Prior art keywords
- storage unit
- heat storage
- phase
- phase change
- baffle plate
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- 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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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
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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
- F28F9/02—Header boxes; End plates
- F28F9/0202—Header boxes having their inner space divided by partitions
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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
Abstract
The invention relates to a novel diversion baffle plate phase-change heat storage unit structure which is characterized by comprising a heat storage unit outer structure, a phase-change material filling layer, a diversion baffle plate and an inner sleeve, wherein the diversion baffle plate is obliquely arranged along the flowing direction of a heating working medium, and an included angle between the diversion baffle plate and the inner wall of the heat storage unit outer structure is an acute angle. The invention can obviously weaken the phenomenon of uneven heating distribution of the phase-change material in the phase-change heat storage unit, greatly improve the heat exchange performance of the phase-change heat storage unit and greatly shorten the melting time of the phase-change material.
Description
Technical Field
The invention belongs to the technical field of phase change heat storage, and particularly relates to a novel flow guide partition plate phase change heat storage unit structure.
Background
The traditional phase-change heat storage unit consists of an outer structure of the heat storage unit, a phase-change material filling layer and an inner sleeve (as shown in figure 1), or the structure form of a horizontal partition plate is added (as shown in figure 2), and the traditional phase-change heat storage unit has the technical defects that the phase-change material in the phase-change heat storage unit is uneven in heating distribution, poor in heat exchange performance and long in melting time of the phase-change material.
Disclosure of Invention
The invention aims to provide a novel flow guide partition plate phase change heat storage unit structure which can obviously weaken the phenomenon of uneven heated distribution of a phase change material in a phase change heat storage unit, greatly improve the heat exchange performance of the phase change heat storage unit and greatly shorten the melting time of the phase change material.
The invention provides a novel diversion baffle plate phase change heat storage unit structure which comprises a heat storage unit outer structure, a phase change material filling layer, a diversion baffle plate and an inner sleeve, wherein the diversion baffle plate is obliquely arranged along the flowing direction of a heating working medium, and an included angle between the diversion baffle plate and the inner wall of the heat storage unit outer structure is an acute angle.
Furthermore, the included angle between the flow guide partition plate and the inner wall of the outer structure of the heat storage unit is 30 degrees.
By means of the scheme, the phase change material in the phase change heat storage unit can be obviously weakened to be unevenly distributed when being heated through the novel flow guide partition plate phase change heat storage unit structure, so that the heat exchange performance of the phase change heat storage unit is greatly improved, and the melting time of the phase change material is greatly shortened.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of a conventional phase change heat storage unit (jacket);
FIG. 2 is a schematic diagram of a phase change heat storage unit (horizontal wall sleeve) with horizontal walls;
fig. 3 is a schematic view of a novel flow guiding partition plate phase change heat storage unit structure of the invention.
Reference numbers in the figures:
11-an external structure of the heat storage unit; 12-a phase change material fill layer; 13-inner sleeve;
21-external structure of heat storage unit; 22-a phase change material fill layer; 23-inner sleeve; 24-a horizontal partition;
31-external structure of heat storage unit; 32-a phase change material fill layer; 33-inner sleeve; 34-diversion baffle plate.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Referring to fig. 3, the embodiment provides a novel diversion barrier phase-change heat storage unit structure, which includes a heat storage unit outer structure 31, a phase-change material filling layer 32, a diversion barrier 34 and an inner sleeve 33, wherein the diversion barrier 34 is obliquely arranged along a flowing direction of a heating working medium, and an included angle between the diversion barrier 34 and an inner wall of the heat storage unit outer structure 31 is an acute angle.
In the embodiment, the angle between the baffle 34 and the inner wall of the heat storage unit 31 is 30 degrees.
The inner sleeve 33 of the novel baffle plate phase-change heat storage unit structure conducts heat to the phase-change material filling layer 32 (such as fused salt, paraffin and the like) through a heat transfer medium (such as high-temperature water or steam and the like) through the baffle plate 34, and the phase-change material stores energy through phase-change latent heat. The structure is additionally provided with the flow guide partition plate 34 on the basis of the common phase change sleeve, when the flow guide partition plate 34 increases the heat exchange between the phase change material and the heat transfer medium through heat conduction, the heat convection inside the phase change material is promoted, the phenomenon that the phase change material in the phase change heat storage unit is unevenly distributed when being heated can be obviously weakened, the heat exchange performance of the phase change heat storage unit is greatly improved, and the melting time of the phase change material is greatly shortened.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (2)
1. The utility model provides a novel water conservancy diversion baffle phase transition heat-retaining unit structure, its characterized in that, includes heat-retaining unit outer structure, phase change material filling layer, water conservancy diversion baffle and interior sleeve pipe, water conservancy diversion baffle sets up along the slope of heating working medium flow direction, the contained angle of water conservancy diversion baffle and heat-retaining unit outer structure inner wall is the acute angle.
2. The novel baffle plate phase-change heat storage unit structure as claimed in claim 1, wherein the angle between the baffle plate and the inner wall of the heat storage unit outer structure is 30 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911241378.XA CN110986646A (en) | 2019-12-06 | 2019-12-06 | Novel flow guide partition plate phase change heat storage unit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911241378.XA CN110986646A (en) | 2019-12-06 | 2019-12-06 | Novel flow guide partition plate phase change heat storage unit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110986646A true CN110986646A (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911241378.XA Pending CN110986646A (en) | 2019-12-06 | 2019-12-06 | Novel flow guide partition plate phase change heat storage unit structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN110986646A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113355057A (en) * | 2021-06-30 | 2021-09-07 | 中国科学院青海盐湖研究所 | Method for improving phase change heat storage performance of industrial-grade hydrated salt |
-
2019
- 2019-12-06 CN CN201911241378.XA patent/CN110986646A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113355057A (en) * | 2021-06-30 | 2021-09-07 | 中国科学院青海盐湖研究所 | Method for improving phase change heat storage performance of industrial-grade hydrated salt |
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