CN205300336U - Quick phase change energy storage device with high phase transition volume ratio - Google Patents
Quick phase change energy storage device with high phase transition volume ratio Download PDFInfo
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- CN205300336U CN205300336U CN201620046997.9U CN201620046997U CN205300336U CN 205300336 U CN205300336 U CN 205300336U CN 201620046997 U CN201620046997 U CN 201620046997U CN 205300336 U CN205300336 U CN 205300336U
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- phase transition
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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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- 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 utility model discloses a quick phase change energy storage device that has high looks variant volume ratio, including outer box and triangular prism shape group, the both ends opening of outer box, and inside cavity, triangular prism shape group sets up in the inside cavity of outer box, clearance intussuseption between triangular prism shape group and the outer box is filled with the conduction medium of exchange, triangular prism shape group includes a plurality of positive triangular prism of connecting through the fastener that is honeycomb pattern arranged, be equipped with the clearance between two arbitrary adjacent positive triangular prisms, each positive triangular prism is concatenated in turn by I type phase transition tetrahedron and II type phase transition tetrahedrons and forms, the equal cavity of I type phase transition tetrahedron and the tetrahedral inside of II type phase transitions, but its inside cavity fills and is equipped with phase change material. In equal energy memory's volume, but the phase transition tetrahedron of quick phase change energy storage device can fill the phase change material that the dress is more, compares with the sphericity, is equivalent to 1.31 times of sphericity.
Description
Technical field
The utility model relates to the technical field of cold energy in power-saving technology or thermal energy storage. More specifically,Relate to a kind of rapid phase transition energy storage device with high phase transformation volumetric ratio.
Background technology
Along with global human energy consumption level continues to increase, to store under certain condition cold energy or heat energy withThe demand that improves using energy source level also constantly increases. And the energy storage device having now adopts spherical encapsulationThe structure of phase change material, because spherical is to have the long-pending geometrical body of minimal surface, so that phase change materialHave that heat exchange area is little, effective phase transformation body bulk accounting situation on the low side of spheroid, so that the overall phase that participates inThe volume accounting that becomes material is not on the low side, and energy storage volume density is on the low side, and little also causing of surface area realizes completelyThe heat-transfer surface deficiency of phase-change accumulation energy, energy storage time is long, and cause, energy storage device efficiency is low, energy storage deviceValency, than higher defect, has been offset actual energy storage efficiency. In order to improve energy storage efficiency, Dupont public affairsDepartment adopts and add the method for bringing out nucleus in spherical phase variant, accelerates phase transformation to bring out phase change material. StateNei Mou university proposes to increase heat conductive rod in spherical to promote heat from spherome surface to inner conduction.But above improvement all fails to change the geometric shape of packaging phase change material, thereby fail to solve to increase changes at allThe problem of hotlist area and raising phase transformation body bulk accounting.
Therefore, need to provide a kind of rapid phase transition energy storage device with high phase transformation volumetric ratio.
Utility model content
The purpose of this utility model is to be to provide a kind of rapid phase transition energy storage with high phase transformation volumetric ratioDevice.
For achieving the above object, the utility model adopts following technical proposals:
A rapid phase transition energy storage device with high phase transformation body bulk ratio, comprises outer case and tri-prismoidGroup;
The both ends open of outer case, and inner hollow; Tri-prismoid group is arranged at the internal cavities of outer caseIn; In gap between tri-prismoid group and outer case, be filled with the conduction medium of exchange;
Tri-prismoid group comprises the multiple regular triangular prisms that are honeycomb arrangement that connect by securing member;
Between two regular triangular prisms of arbitrary neighborhood, be provided with gap;
Each regular triangular prism is alternately connected in series and forms by I type phase transformation tetrahedron and II type phase transformation tetrahedron;
The equal hollow of I type phase transformation tetrahedron and the tetrahedral inside of II type phase transformation, its internal cavities is filled with canPhase-change material.
Preferably, described in each in regular triangular prism, the described I type phase transformation tetrahedron of arbitrary neighborhood withBetween described II type phase transformation tetrahedron, be provided with gap.
Preferably, described I type phase transformation tetrahedron is by an isosceles triangle face, two right angled triangle facesSurround with an equilateral triangle face.
Preferably, described II type phase transformation tetrahedron is by two right angled triangle faces and two isosceles triangle facesSurround.
Preferably, it is long that the waist length of described isosceles triangle face equals the hypotenuse of described right angled triangle face; InstituteThe length of side of stating the second right-angle side of right angled triangle face equals the long half of its hypotenuse; Described right angled triangleThe length of side of the first right-angle side of face and the length of side of described equilateral triangle face are equal to described isosceles triangle faceBottom side length.
Preferably, described I type phase transformation tetrahedron and/or the phase transformation of described II type tetrahedral any two adjacentGore be fixedly connected with by the mode of punching press or welding.
Preferably, the described conduction medium of exchange is fluid.
Preferably, in the time that described rapid phase transition energy storage device is used for storage of cold, described I type phase transformation four sidesBody or the tetrahedral material of described II type phase transformation are low temperature resistant stainless steel, macromolecular material or poly-fluorine class materialMaterial; When described rapid phase transition energy storage device is when the heat energy storage, described I type phase transformation tetrahedron or described inStainless steel, titanium or titanium alloy that the tetrahedral material of II type phase transformation is corrosion-and high-temp-resistant.
Preferably, in the time that described rapid phase transition energy storage device is used for storage of cold, described I type phase transformation four sidesWhat body or the tetrahedral internal cavities of described II type phase transformation filled can phase-change material be water, salt solution or denseThe ethylene glycol that degree and its phase transition temperature match; In the time that described rapid phase transition energy storage device is used for heat energy storage,What described I type phase transformation tetrahedron or the tetrahedral internal cavities of described II type phase transformation filled can phase-change material beThe fused salt material matching with its phase transition temperature.
Preferably, being shaped as of described outer case is cylindrical, and its two ends are respectively arranged with entrance and exit.
The beneficial effects of the utility model are as follows:
(1) compared with prior art, in the volume of equal energy storage device, described rapid phase transition energy storage dressThe phase transformation tetrahedron of putting can fill more can phase-change material, compared with spherical, is equivalent to spherical1.31 times, tank-volumes is identical outside, the tetrahedral material of phase transformation is identical and operating temperature is identicalUnder condition, can store 37.4% cold energy or heat energy more;
(2) compared with prior art, in equivalent phase change material material situation, described rapid phase transition energy storageThe tetrahedral surface area of phase transformation of device is 1.96 times of same volume spherical surface area, in equal phase transformationUnder the volume of material, can measure the area change 96% of exchange by cooling (or heat); Identical at material,Under the identical condition identical with operating temperature of volume capacity, the speed that realizes phase-change accumulation energy is fast again;
(3) compared with prior art, I type phase transformation tetrahedron and the II type of described rapid phase transition energy storage deviceThe tetrahedral simple shape of phase transformation, regular, is convenient to processing.
Brief description of the drawings
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail.
The rapid phase transition energy storage device with high phase transformation volumetric ratio that Fig. 1 provides for the utility model embodimentSchematic perspective view.
The rapid phase transition energy storage device with high phase transformation volumetric ratio that Fig. 2 provides for the utility model embodimentThe schematic perspective view of regular triangular prism of tri-prismoid group.
Fig. 3 is the schematic diagram of I type phase transformation tetrahedron or the tetrahedral isosceles triangle face of II type phase transformation.
Fig. 4 is the schematic diagram of I type phase transformation tetrahedron or the tetrahedral right angled triangle face of II type phase transformation.
Fig. 5 is the schematic diagram of I type phase transformation tetrahedron or the tetrahedral equilateral triangle face of II type phase transformation.
Detailed description of the invention
In order to be illustrated more clearly in the utility model, new to this practicality below in conjunction with preferred embodiments and drawingsType is described further. Parts similar in accompanying drawing represent with identical Reference numeral. This areaTechnical staff should be appreciated that specifically described content is illustrative and nonrestrictive below, should notLimit protection domain of the present utility model with this.
The rapid phase transition energy storage device of what as shown in Figure 1, the present embodiment provided have high phase transformation body bulk ratioComprise outer case 1 and tri-prismoid group 2.
The both ends open of outer case 1, and inner hollow. The shape of outer case 1 preferably but be not limited to circleCylindricality. Tri-prismoid group 2 is arranged in the internal cavities of outer case 1. Tri-prismoid group 2 comprises to be passed throughThe multiple regular triangular prisms that are honeycomb arrangement that securing member (not shown) connects. Tri-prismoid group 2And in the gap between outer case 1, be filled with the conduction medium of exchange 3, and the conduction medium of exchange 3 is fluid.
Between two regular triangular prisms of the arbitrary neighborhood of tri-prismoid group 2, be provided with gap, for handing over for conductionChange medium 3 and therefrom circulate, thereby realize the conduction of cold energy or heat energy.
As shown in Figure 2, each regular triangular prism of tri-prismoid group 2 is by I type phase transformation tetrahedron and II typePhase transformation tetrahedron alternately serial connection forms. The equal hollow of I type phase transformation tetrahedron and the tetrahedral inside of II type phase transformation,Its internal cavities is filled with can phase-change material. In each regular triangular prism, the I type phase transformation of arbitrary neighborhoodBetween tetrahedron and II type phase transformation tetrahedron, be provided with gap, for therefrom circulating for the conduction medium of exchange 3,Thereby realize the conduction of cold energy or heat energy.
As shown in Figure 2-5, I type phase transformation tetrahedron is by an isosceles triangle face (as shown in Figure 3), twoIndividual right angled triangle face (as shown in Figure 4) and an equilateral triangle face (as shown in Figure 5) surround.
As shown in Figure 2-5, II type phase transformation tetrahedron by two right angled triangle faces (as shown in Figure 4) andTwo isosceles triangle faces (as shown in Figure 3) surround.
In a kind of preferred embodiment of the present embodiment, I type phase transformation tetrahedron and/or II type phase transformation four sidesAny two adjacent gores of body are fixedly connected with by the mode of punching press or welding.
It is long that the waist length of above-mentioned isosceles triangle face equals the hypotenuse of right angled triangle face; Right angled triangle faceThe length of side of the second right-angle side equals the long half of its hypotenuse; The length of side of the first right-angle side of right angled triangle faceBe equal to the bottom side length of isosceles triangle face with the length of side of equilateral triangle face.
As shown in Figure 3, the waist of isosceles triangle face is long is c, and its bottom side length is a, and its waist is long and baseComputing formula between length is:
As shown in Figure 4, the hypotenuse of right angled triangle face is long is c, and the length of side of its first right-angle side is a, itsThe length of side of the second right-angle side is b, and between the length of side a of its first right-angle side and the side length b of the second right-angle sideComputing formula be:
Computing formula between the long c of the side length b of its second right-angle side and hypotenuse is:
C=2b formula (3).
As shown in Figure 5, the length of side of equilateral triangle face is a. The length of side a of equilateral triangle face is preferably75-100 centimetre.
Preparation I type phase transformation tetrahedron or the tetrahedral material of II type phase transformation depend on described rapid phase transition energy storageThe purposes of device, depends on the use of described rapid phase transition energy storage device for storage of cold or heat energy storageOn the way. In the time that described rapid phase transition energy storage device is used for storage of cold, I type phase transformation tetrahedron or the phase transformation of II typeTetrahedral material preferably but be not limited to low temperature resistant stainless steel, macromolecular material or poly-fluorine class material;In the time that described rapid phase transition energy storage device is used for heat energy storage, I type phase transformation tetrahedron or II type phase transformation four sidesThe material of body preferably but be not limited to stainless steel, titanium or the titanium alloy of corrosion-and high-temp-resistant.
What similarly, I type phase transformation tetrahedron or the tetrahedral internal cavities of II type phase transformation filled can phase transformation materialMaterial depends on the purposes of described rapid phase transition energy storage device. When described rapid phase transition energy storage device is for storingWhen cold energy, what I type phase transformation tetrahedron or the tetrahedral internal cavities of II type phase transformation filled is can phase-change material excellentSelect but be not limited to water, salt solution or concentration and I type phase transformation tetrahedron or the tetrahedral phase of II type phase transformationThe ethylene glycol that temperature matches; In the time that described rapid phase transition energy storage device is used for heat energy storage, I type phaseBecome that tetrahedron or the tetrahedral internal cavities of II type phase transformation fill can phase-change material preferably but be not limited toThe fused salt material that I type phase transformation tetrahedron or the tetrahedral phase transition temperature of II type phase transformation match.
In the present embodiment, as shown in Figure 1, being shaped as of outer case 1 is cylindrical, and outer case 1 twoEnd is respectively arranged with entrance and exit. For example, outlet is arranged at the top of outer case 1, and entrance is arranged atThe bottom of outer case 1. When use, the conduction medium of exchange 3 flows in outer case 1 from entrance, then existsIn outer case 1, carry out heat exchange with I type phase transformation tetrahedron and/or II type phase transformation tetrahedron, then from outer case1 outlet is flowed out.
In application, those skilled in the art are readily appreciated that, tri-prismoid group 2 can be set to multistage orMultilayer. If tri-prismoid group 2 is multistage or multilayer, shape and the structure of at different levels or each layers are all identical.
According to thermodynamic principles, the conduction of heat energy between different material, the thermal energy conducting within the unit intervalBe directly proportional to the surface area of conduction. Therefore, under the condition of equivalent volumes, surface area is larger, conductionThermal energy sooner, more, the conduction efficiency of thermal energy is larger. Compared with prior art, due to this realityExecute routine I type phase transformation tetrahedron and be all greater than the ball identical with its volume with the tetrahedral surface area of II type phase transformationBody, enters with I type phase transformation tetrahedron and/or II type phase transformation tetrahedron thereby can improve the conduction medium of exchange 3Conduction efficiency when row heat exchange. In addition the tetrahedral shape letter of I type phase transformation tetrahedron and the phase transformation of II type,Single, regular, be convenient to processing.
Obviously, above-described embodiment of the present utility model is only for clearly illustrating what the utility model was doneFor example, and be not the restriction to embodiment of the present utility model, for the ordinary skill in affiliated fieldPersonnel, can also make other changes in different forms on the basis of the above description, thisIn cannot give all embodiments exhaustively, every the technical solution of the utility model that belongs to is extendedThe apparent variation going out or the still row in protection domain of the present utility model of variation.
Claims (10)
1. a rapid phase transition energy storage device with high phase transformation body bulk ratio, is characterized in that, outside comprisingCasing and tri-prismoid group;
The both ends open of outer case, and inner hollow; Tri-prismoid group is arranged at the internal cavities of outer caseIn; In gap between tri-prismoid group and outer case, be filled with the conduction medium of exchange;
Tri-prismoid group comprises the multiple regular triangular prisms that are honeycomb arrangement that connect by securing member;
Between two regular triangular prisms of arbitrary neighborhood, be provided with gap;
Each regular triangular prism is alternately connected in series and forms by I type phase transformation tetrahedron and II type phase transformation tetrahedron;
The equal hollow of I type phase transformation tetrahedron and the tetrahedral inside of II type phase transformation, its internal cavities is filled with canPhase-change material.
2. the rapid phase transition energy storage device with high phase transformation body bulk ratio according to claim 1, itsBe characterised in that, described in each in regular triangular prism, described I type phase transformation tetrahedron and the institute of arbitrary neighborhoodState between II type phase transformation tetrahedron and be provided with gap.
3. the rapid phase transition energy storage device with high phase transformation body bulk ratio according to claim 2, itsBe characterised in that, described I type phase transformation tetrahedron by an isosceles triangle face, two right angled triangle faces andAn equilateral triangle face surrounds.
4. the rapid phase transition energy storage device with high phase transformation body bulk ratio according to claim 2, itsBe characterised in that, described II type phase transformation tetrahedron is enclosed by two right angled triangle faces and two isosceles triangle facesBecome.
5. according to the rapid phase transition energy storage device with high phase transformation body bulk ratio described in claim 3 or 4,It is characterized in that, it is long that the waist length of described isosceles triangle face equals the hypotenuse of described right angled triangle face; InstituteThe length of side of stating the second right-angle side of right angled triangle face equals the long half of its hypotenuse; Described right angled triangleThe length of side of the first right-angle side of face and the length of side of described equilateral triangle face are equal to described isosceles triangle faceBottom side length.
6. according to the rapid phase transition energy storage device with high phase transformation body bulk ratio described in claim 3 or 4,It is characterized in that, described I type phase transformation tetrahedron and/or the phase transformation of described II type tetrahedral any two adjacentGore be fixedly connected with by the mode of punching press or welding.
7. according to the rapid phase transition storage with high phase transformation body bulk ratio described in any one in claim 1-4Energy device, is characterized in that, the described conduction medium of exchange is fluid.
8. according to the rapid phase transition storage with high phase transformation body bulk ratio described in any one in claim 1-4Energy device, is characterized in that, in the time that described rapid phase transition energy storage device is used for storage of cold, and described I typePhase transformation tetrahedron or the tetrahedral material of described II type phase transformation be low temperature resistant stainless steel, macromolecular material orPoly-fluorine class material; In the time that described rapid phase transition energy storage device is used for heat energy storage, described I type phase transformation four sidesStainless steel, titanium or titanium alloy that body or the tetrahedral material of described II type phase transformation are corrosion-and high-temp-resistant.
9. according to the rapid phase transition storage with high phase transformation body bulk ratio described in any one in claim 1-4Energy device, is characterized in that, in the time that described rapid phase transition energy storage device is used for storage of cold, and described I typeWhat phase transformation tetrahedron or the tetrahedral internal cavities of described II type phase transformation filled can phase-change material be water, salt solution,Or the ethylene glycol that concentration and its phase transition temperature match; When described rapid phase transition energy storage device is for storingWhen heat energy, what described I type phase transformation tetrahedron or the tetrahedral internal cavities of described II type phase transformation filled can phaseBecome the fused salt material of material into matching with its phase transition temperature.
10. according to the rapid phase transition with high phase transformation body bulk ratio described in any one in claim 1-4Energy storage device, is characterized in that, being shaped as of described outer case is cylindrical, its two ends be respectively arranged with intoMouth and outlet.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509524A (en) * | 2016-01-14 | 2016-04-20 | 江卫 | Rapid phase-change energy storage device with large phase-change volume ratio |
| CN108662931A (en) * | 2018-04-13 | 2018-10-16 | 东南大学 | A kind of bionical phase-change energy storage plate |
| CN108955329A (en) * | 2018-06-29 | 2018-12-07 | 西安交通大学 | A kind of adjustable cold-storage device of rate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5638298B2 (en) * | 2010-07-08 | 2014-12-10 | 愛三工業株式会社 | Granulated heat storage material and evaporative fuel processing device |
| CN101963469A (en) * | 2010-11-01 | 2011-02-02 | 上海海事大学 | Heat storage and heat supply device for phase-change material |
| CN104075605A (en) * | 2014-07-02 | 2014-10-01 | 李渊 | Energy storage device |
| CN205300336U (en) * | 2016-01-14 | 2016-06-08 | 江卫 | Quick phase change energy storage device with high phase transition volume ratio |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509524A (en) * | 2016-01-14 | 2016-04-20 | 江卫 | Rapid phase-change energy storage device with large phase-change volume ratio |
| CN108662931A (en) * | 2018-04-13 | 2018-10-16 | 东南大学 | A kind of bionical phase-change energy storage plate |
| CN108662931B (en) * | 2018-04-13 | 2020-09-18 | 东南大学 | Bionic phase change energy storage plate |
| CN108955329A (en) * | 2018-06-29 | 2018-12-07 | 西安交通大学 | A kind of adjustable cold-storage device of rate |
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| CN105509524A (en) | 2016-04-20 |
| CN105509524B (en) | 2016-12-14 |
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