CN104215109A - Phase change energy storage device - Google Patents
Phase change energy storage device Download PDFInfo
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- CN104215109A CN104215109A CN201410404863.5A CN201410404863A CN104215109A CN 104215109 A CN104215109 A CN 104215109A CN 201410404863 A CN201410404863 A CN 201410404863A CN 104215109 A CN104215109 A CN 104215109A
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- heat exchanger
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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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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a phase change energy storage device. The phase change energy storage device comprises a microchannel heat exchanger, a shell, a top cover and a phase change material, wherein the shell is matched with the top cover to form a closed inner cavity; the microchannel heat exchanger is arranged in the closed inner cavity and is provided with an inlet and an outlet which are communicated with the outside of the closed inner cavity; the phase change material is arranged in the closed inner cavity and encircles the microchannel heat exchanger; the microchannel heat exchanger is provided with a plurality of fins for increasing the heat exchange area of the phase change material. According to the phase change energy storage device provided by the invention, the shell is matched with the top cover to form the closed inner cavity, the microchannel heat exchanger is arranged in the closed inner cavity, during filling, the phase change material is arranged in the closed inner cavity and encircles the microchannel heat exchanger, and thus the problem of filling difficulty in the prior art is effectively solved; the microchannel heat exchanger is provided with the fins, the fins are inserted in the phase change material after filing, and thus the heat exchange area of the microchannel heat exchanger and the phase change material is effectively increased, and the heat exchange efficiency is improved.
Description
Technical field
The present invention relates to energy storage device field, in particular to a kind of phase-change energy storage device.
Background technology
In prior art, there is the shortcomings such as heat exchange efficiency is low, heat exchange skewness, energy storage time length in phase-change energy storage device.Although partial phase change energy storage device has improved heat exchange efficiency and reduced energy storage time, the cost of plate type heat exchanger is higher, and the filling of phase-change material difficulty, complex process.
Summary of the invention
The phase-change energy storage device that the present invention aims to provide and a kind ofly can load conveniently, heat exchange efficiency is high.
The invention provides a kind of phase-change energy storage device, comprise micro-channel heat exchanger, shell, top cover and phase-change material, shell and top cover coordinate the airtight inner chamber of formation, micro-channel heat exchanger is arranged in airtight inner chamber and has and outside import and the outlet being communicated with of airtight inner chamber, phase-change material is filled in airtight inner chamber and surrounds micro-channel heat exchanger, and micro-channel heat exchanger has for increasing a plurality of fins with phase-change material heat exchange area.
Further, micro-channel heat exchanger comprises a plurality of flat tubes with microchannel, and the first header and the second header that are connected to a plurality of flat tubes two ends; The first header has two separate manifolds, import and outlet and the corresponding connection one by one of two manifolds.
Further, the tiling of a plurality of flat tube broad ways is arranged, and a plurality of fins are perpendicular to the plane at a plurality of flat tubes place, and with a plurality of flat tubes welding.
Further, a plurality of fins all have the first flange, the first flange and the welding of a plurality of flat tube.
Further, the height of a plurality of fins is 10mm to 15mm; The thickness of a plurality of fins is 0.5mm to 1mm; Spacing in a plurality of fins between adjacent two is 20mm to 25mm; The height of the first flange is 3mm to 5mm.
Further, the edge-on arrangement of a plurality of flat tubes, is provided with the otch coordinating with a plurality of flat tubes on a plurality of fins, and a plurality of flat tubes are embedded in otch and with a plurality of fins and intersect to form network structure.
Further, a side of otch is provided with the second flange coordinating with a plurality of flat tubes.
Further, the height of a plurality of fins is less than or equal to the degree of depth of airtight inner chamber; The thickness of a plurality of fins is 0.5mm to 1mm; Spacing in a plurality of fins between adjacent two is 20mm to 25mm; The height of the second flange is 3mm to 5mm.
Further, the first header has partition, and partition is two manifolds by the inner chamber blocking-up of the first header.
Further, phase-change material is polyethylene glycol and/or paraffin, or is at least one the composite at least one and expanded graphite, carbon fiber and the foam metal in polyethylene glycol and paraffin.
According to phase-change energy storage device of the present invention, by being coordinated, shell and top cover form airtight inner chamber, micro-channel heat exchanger is arranged in airtight inner chamber, during filling, only phase-change material need to be filled in airtight inner chamber and surround micro-channel heat exchanger, thereby effectively solve the difficult problem of loading in prior art; Micro-channel heat exchanger is by a plurality of fins are set, and after loading, fin is inserted in phase-change material, thereby effectively increases the heat exchange area of micro-channel heat exchanger and phase-change material, thereby improves heat exchange efficiency.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the decomposition texture schematic diagram according to phase-change energy storage device of the present invention;
Fig. 2 is according to the decomposition texture schematic diagram of the micro-channel heat exchanger of the first embodiment of phase-change energy storage device of the present invention;
Fig. 3 is according to the decomposition texture schematic diagram of the micro-channel heat exchanger of the second embodiment of phase-change energy storage device of the present invention;
Description of reference numerals:
1, micro-channel heat exchanger; 2, shell; 3, top cover; 4, the first header; 5, flat tube; 6, fin; 7, the second header; 8, import; 9, outlet; 10, partition; 11, phase-change material.
The specific embodiment
Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
As shown in Figures 1 to 3, according to phase-change energy storage device of the present invention, comprise micro-channel heat exchanger 1, shell 2, top cover 3 and phase-change material 11, shell 2 and top cover 3 coordinate the airtight inner chamber of formation, micro-channel heat exchanger 1 is arranged in airtight inner chamber and has and the outside import being communicated with 8 of airtight inner chamber and outlet 9, phase-change material 11 is filled in airtight inner chamber and surrounds micro-channel heat exchanger 1, and micro-channel heat exchanger 1 has for increasing a plurality of fins 6 with phase-change material 11 heat exchange areas.The present invention forms airtight inner chamber by shell 2 and top cover 3 are coordinated, micro-channel heat exchanger is arranged in airtight inner chamber, during filling, only need to phase-change material 11 be filled in airtight inner chamber and surround micro-channel heat exchanger 1, thereby effectively solve the difficult problem of loading in prior art; Micro-channel heat exchanger 1 is by a plurality of fins 6 are set, and after loading, fin 6 is inserted in phase-change material 11, thereby effectively increases the heat exchange area of micro-channel heat exchanger 1 and phase-change material 11, thereby improves heat exchange efficiency.
Particularly, in conjunction with Fig. 1 and 2, the first embodiment of the present invention is described, in this embodiment, micro-channel heat exchanger 1 comprises a plurality of flat tubes 5 with microchannel, and the first header 4 and the second header 7 that are connected to a plurality of flat tubes 5 two ends, the first header 4 has two separate manifolds, and preferably, two manifolds form for the inner chamber of the first header 4 being cut apart to blocking-up by partition 10.Import 8 and outlet 9 respectively with the corresponding connection one by one of two manifolds.The fluid entering from import 8 is diverted in corresponding manifold that in a part of flat tube 5, (its concrete shunting quantity depends on the quantity of flat tube 5, be generally half of flat tube 5 sums), then in the second header 7, collect and be diverted to again in another part flat tube 5, finally be pooled to export 9 corresponding manifolds in and from exporting 9 discharges, between import 8 and outlet 9, formed a hot switching path.
Preferably, in the first embodiment, the 5 broad ways tilings of a plurality of flat tube are arranged, and a plurality of fins 6 are perpendicular to the plane at a plurality of flat tubes 5 places, and with a plurality of flat tubes 5 welding.Two sides up and down of the plane at a plurality of flat tubes 5 places are provided with fin 6, for the ease of installing and heat exchange uniformity, the general equidistant even setting of fin 6, certainly, the needs different according to other, those skilled in the art can convert the set-up mode of fin 6, as reticulated setting by fin 6 is poor.
Preferably, a plurality of fins 6 all have the first flange, the first flange and 5 welding of a plurality of flat tube.By the first flange is set, the convenient welding of one side fin 6 and flat tube 5, guarantee constant intensity, can effectively increase on the other hand the contact area of fin 6 and flat tube 5, thereby improve heat exchange efficiency.
In the first embodiment, shell 2 and top cover 3 adopt conventional engineering plastics ABS, technical maturity, and reliability is high, can be effectively cost-saving.Phase-change material 11 is the composite phase-change material of graininess, bulk or gluey polyethylene glycol, paraffin or they and expanded graphite, carbon fiber, foam metal etc.All parts of micro-channel heat exchanger 1 are aluminum.
During assembling, first ground floor phase-change material 11 is laid in to the bottom of shell 2, half that the degree of depth is enclosure depth; Then micro-channel heat exchanger 1 level is put into shell 2, and evenly exerted pressure in two ends from top to bottom, its downside fin 6 is inserted in phase-change material 11 until reach outer casing bottom; And then the space of filling between micro-channel heat exchanger 1 upside fin with second layer phase-change material 11; Finally cover top cover 3, micro-channel heat exchanger 1 and phase-change material 11 are hedged off from the outer world.
Preferably, shown in Fig. 2, the height of fin 6 (along perpendicular to flat tube 5 place in-planes) be 10mm to 15mm, can effectively avoid the high excessive and whole heat transfer efficiency reduction that causes causing along the heat transfer decay of the high direction of rib of rib; The thickness of fin 6 is 0.5mm to 1mm, guarantees certain fin intensity, avoids assembling the reviewing that the extruding in phase-change material 11 processes causes; The spacing of adjacent two fins is 20mm to 25mm, can efficient hardening phase-change material 11 with the heat exchange efficiency of micro-channel heat exchanger 1; Flange height (fin 6 place planes relatively) is 3mm to 5mm, guarantees the reliability of fin welding, improves the heat exchange efficiency of flat tube 5 and fin 6.
The micro-channel heat exchanger of the second embodiment of phase-change energy storage device as shown in Figure 3, different from the first embodiment, in a second embodiment, flat tube 5 is changed into edge-on by tiling.Be the edge-on arrangements of a plurality of flat tubes 5, be provided with the otch coordinating with a plurality of flat tubes 5 on a plurality of fins 6, flat tube 5 is embedded in otch and makes a plurality of fins 6 intersect to form network structure with a plurality of flat tubes 5.
Preferably, a side of otch is provided with the second flange coordinating with a plurality of flat tubes 5, for the ease of processing, installs, and the second flange is generally towards same direction, and the second flange and flat tube 5 welding, guarantee weld strength, and improve heat exchange efficiency.
Adopt the micro-channel heat exchanger of the second embodiment, compare the first embodiment, owing to having the plane at flat tube 5 places to form, do not cut off, during assembling, can first micro-channel heat exchanger 1 level be put into shell 2, and then fill into from flat tube 5 and the latticed space that fin 6 forms with phase-change material 11, the assembling of phase-change material 11 is reduced to once by twice, can improve efficiency of assembling.Adopt the micro-channel heat exchanger 1 of the second embodiment, the height of fin 6 can be basically identical with the degree of depth of the inner chamber of shell 2, or be slightly less than the degree of depth of the inner chamber of shell 2.Be similar to the first embodiment, the spacing of adjacent two flat tubes 5 is 20mm to 25mm, and the thickness of fin 6 is 0.5mm to 1mm, and the height of the second flange is 3-5mm.
In conjunction with Fig. 1 to 3, illustrate the operation principle of phase-change energy storage device of the present invention:
During heat energy storage, heating agent enters phase-change energy storage device from import 8, the hot switching path and the phase-change material in phase-change energy storage device 11 that the first header 4, flat tube 5 and the second header 7, consist of carry out heat exchange, make phase-change material 11 undergo phase transition (solid-state-liquid state), heat energy is stored in device with the form of latent heat of phase change, and heating agent is from exporting 9 outflows afterwards.
While discharging heat energy, refrigerant enters phase-change energy storage device from import 8, the hot switching path and the phase-change material in phase-change energy storage device 11 that the first header 4, flat tube 5 and the second header 7, consist of carry out heat exchange, make phase-change material 11 undergo phase transition (liquid-solid-state), heat energy passes to refrigerant with the form of latent heat of phase change, and refrigerant is from exporting 9 outflows afterwards
According to phase-change energy storage device of the present invention, by being coordinated, shell and top cover form airtight inner chamber, micro-channel heat exchanger is arranged in airtight inner chamber, during filling, only phase-change material need to be filled in airtight inner chamber and surround micro-channel heat exchanger, thereby effectively solve the difficult problem of loading in prior art; Micro-channel heat exchanger is by a plurality of fins are set, and after loading, fin is inserted in phase-change material, thereby effectively increases the heat exchange area of micro-channel heat exchanger and phase-change material, thereby improves heat exchange efficiency.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a phase-change energy storage device, it is characterized in that, comprise micro-channel heat exchanger (1), shell (2), top cover (3) and phase-change material (11), described shell (2) and top cover (3) coordinate the airtight inner chamber of formation, described micro-channel heat exchanger (1) is arranged in described airtight inner chamber and has and the outside import (8) being communicated with of described airtight inner chamber and outlet (9), described phase-change material (11) is filled in described airtight inner chamber and surrounds described micro-channel heat exchanger (1), described micro-channel heat exchanger (1) has a plurality of fins (6) with described phase-change material (11) heat exchange area for increase.
2. phase-change energy storage device according to claim 1, is characterized in that,
Described micro-channel heat exchanger (1) comprises a plurality of flat tubes (5) with microchannel, and the first header (4) and the second header (7) that are connected to described a plurality of flat tube (5) two ends;
Described the first header (4) has two separate manifolds, described import (8) and described outlet (9) and the corresponding connection one by one of described two manifolds.
3. phase-change energy storage device according to claim 2, is characterized in that,
Described a plurality of flat tube (5) broad ways tiling is arranged, and described a plurality of fins (6) are perpendicular to the plane at described a plurality of flat tubes (5) place, and welds with described a plurality of flat tubes (5).
4. phase-change energy storage device according to claim 3, is characterized in that,
Described a plurality of fin (6) all has the first flange, described the first flange and described a plurality of flat tube (5) welding.
5. according to the phase-change energy storage device described in claim 3 or 4, it is characterized in that,
The height of described a plurality of fin (6) is 10mm to 15mm;
The thickness of described a plurality of fin (6) is 0.5mm to 1mm;
Spacing in described a plurality of fin (6) between adjacent two is 20mm to 25mm;
The height of described the first flange is 3mm to 5mm.
6. phase-change energy storage device according to claim 2, is characterized in that,
The edge-on arrangement of described a plurality of flat tube (5), on described a plurality of fin (6), be provided with the otch coordinating with described a plurality of flat tubes (5), described a plurality of flat tubes (5) are embedded in described otch and with described a plurality of fins (6) and intersect to form network structure.
7. phase-change energy storage device according to claim 6, is characterized in that,
One side of described otch is provided with the second flange coordinating with described a plurality of flat tubes (5).
8. according to the phase-change energy storage device described in claim 6 or 7, it is characterized in that,
The height of described a plurality of fin (6) is less than or equal to the degree of depth of described airtight inner chamber;
The thickness of described a plurality of fin (6) is 0.5mm to 1mm;
Spacing in described a plurality of fin (6) between adjacent two is 20mm to 25mm;
The height of described the second flange is 3mm to 5mm.
9. phase-change energy storage device according to claim 2, is characterized in that,
Described the first header (4) has partition (10), and described partition (10) is described two manifolds by the inner chamber blocking-up of described the first header (4).
10. phase-change energy storage device according to claim 1, is characterized in that,
Described phase-change material (11) is polyethylene glycol and/or paraffin, or is at least one the composite at least one and expanded graphite, carbon fiber and the foam metal in polyethylene glycol and paraffin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410404863.5A CN104215109A (en) | 2014-08-15 | 2014-08-15 | Phase change energy storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410404863.5A CN104215109A (en) | 2014-08-15 | 2014-08-15 | Phase change energy storage device |
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| CN104215109A true CN104215109A (en) | 2014-12-17 |
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| CN201410404863.5A Pending CN104215109A (en) | 2014-08-15 | 2014-08-15 | Phase change energy storage device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106500539A (en) * | 2016-12-14 | 2017-03-15 | 江苏启能新能源材料有限公司 | A kind of novel phase change type heat-storing device stationary barrier and heat-storing device |
| CN106643249A (en) * | 2015-10-30 | 2017-05-10 | 青岛海尔空调器有限总公司 | Radiation air conditioner and heat storage device thereof |
| CN106654819A (en) * | 2016-12-30 | 2017-05-10 | 安徽亿瑞深冷能源科技有限公司 | Plate-fin type cold storage apparatus |
| CN107631657A (en) * | 2017-09-04 | 2018-01-26 | 西安交通大学 | A kind of shell-tube type Latent Heat Storage Exchanger |
| CN107906992A (en) * | 2017-11-03 | 2018-04-13 | 珠海格力电器股份有限公司 | A kind of storage heater and air conditioner |
| CN108344090A (en) * | 2018-04-08 | 2018-07-31 | 珠海格力电器股份有限公司 | A kind of regenerative apparatus and air-conditioning |
| CN111692900A (en) * | 2019-09-30 | 2020-09-22 | 浙江三花智能控制股份有限公司 | Heat exchanger and manufacturing method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106643249A (en) * | 2015-10-30 | 2017-05-10 | 青岛海尔空调器有限总公司 | Radiation air conditioner and heat storage device thereof |
| CN106500539A (en) * | 2016-12-14 | 2017-03-15 | 江苏启能新能源材料有限公司 | A kind of novel phase change type heat-storing device stationary barrier and heat-storing device |
| CN106654819A (en) * | 2016-12-30 | 2017-05-10 | 安徽亿瑞深冷能源科技有限公司 | Plate-fin type cold storage apparatus |
| CN107631657A (en) * | 2017-09-04 | 2018-01-26 | 西安交通大学 | A kind of shell-tube type Latent Heat Storage Exchanger |
| CN107906992A (en) * | 2017-11-03 | 2018-04-13 | 珠海格力电器股份有限公司 | A kind of storage heater and air conditioner |
| CN108344090A (en) * | 2018-04-08 | 2018-07-31 | 珠海格力电器股份有限公司 | A kind of regenerative apparatus and air-conditioning |
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| CN111692900B (en) * | 2019-09-30 | 2021-08-06 | 浙江三花智能控制股份有限公司 | Heat exchanger and manufacturing method thereof |
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