CN204694132U - A kind of phase change cold-storage device - Google Patents
A kind of phase change cold-storage device Download PDFInfo
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- CN204694132U CN204694132U CN201520344412.7U CN201520344412U CN204694132U CN 204694132 U CN204694132 U CN 204694132U CN 201520344412 U CN201520344412 U CN 201520344412U CN 204694132 U CN204694132 U CN 204694132U
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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 provides a kind of technical scheme of phase change cold-storage device, and the program includes the heat-obtaining cold drawing be arranged in encapsulating housing, heat release cold drawing, framework material, phase-change material and heat-barrier material; Framework material is provided with between heat-obtaining cold drawing and heat release cold drawing; Framework material and heat release cold drawing and heat-obtaining cold drawing adopt laminar stacked interleaved to arrange; Phase-change material is filled with in framework material; The inwall of encapsulating housing is provided with heat-barrier material; Heat-obtaining loop is provided with in heat-obtaining cold drawing; Heat release loop is provided with in heat release cold drawing; Heat-obtaining refrigerating medium is provided with in heat-obtaining loop; Heat release refrigerating medium is provided with in heat release loop; Encapsulating housing top is provided with steam vent and phase-change material filler.The program utilizes heat release loop, heat-obtaining loop and phase-change material to carry out heat exchange, and without the need to adopting additional energy source, single unit system small volume, energy consumption is lower.
Description
Technical field
The utility model relates to heat exchange management domain, especially a kind of phase change cold-storage device.
Background technology
The research focus of thermal management technology to be to solve in " heat-obtaining loop " heat under high heat flux from thermal source to cooling working medium between transmittance process, and for " heat release loop " and how to reduce heat management system volume, weight and power consumption and not yet cause enough attention.Along with solid state laser towards for a long time, more high-power future development, if still adopt the real-time water-cooling pattern in traditional microchannel, the volume of heat management system, weight and power consumption will be extremely huge, significantly limit the application of great-power solid laser.
Phase change cold-storage by phase-change material phase transformation, cold is stored, when needed by method that phase transformation discharges cold.Phase-change accumulation energy system has a wide range of applications in Solar use, building energy conservation, cold accumulation air-conditioner and high-energy laser.
Cao in 2003 builds the people such as light and has carried out the application study of foamed aluminium in phase-change energy storage device, obtain the partial phase change energy storage rule based on foamed aluminium augmentation of heat transfer, but this technology there is not yet application.
Utility model content
The purpose of this utility model, is exactly for the deficiency existing for prior art, and provides a kind of technical scheme of phase change cold-storage device, the program utilizes heat release loop, heat-obtaining loop and phase-change material to carry out heat exchange, without the need to adopting additional energy source, single unit system small volume, energy consumption is lower.
This programme is achieved by the following technical measures: a kind of phase change cold-storage device, includes the heat-obtaining cold drawing be arranged in encapsulating housing, heat release cold drawing, framework material, phase-change material and heat-barrier material; Framework material is provided with between heat-obtaining cold drawing and heat release cold drawing; Framework material and heat release cold drawing and heat-obtaining cold drawing adopt laminar stacked interleaved to arrange; Phase-change material is filled with in framework material; The inwall of encapsulating housing is provided with heat-barrier material; Heat-obtaining loop is provided with in heat-obtaining cold drawing; Heat release loop is provided with in heat release cold drawing; Heat-obtaining refrigerating medium is provided with in heat-obtaining loop; Heat release refrigerating medium is provided with in heat release loop; Encapsulating housing top is provided with steam vent and phase-change material filler.
Preferred as this programme: one end, heat-obtaining loop is arranged in heat-obtaining cold drawing, and the other end is arranged in heat source region; One end, heat release loop is arranged in heat release cold drawing, and the other end is arranged in external refrigeration equipment.
Preferred as this programme: the shape of framework material is block porous honeycomb shape; The material of framework material is porous foam graphite; Framework material thermal conductivity factor is 100w/m ﹒ K ~ 300w/m ﹒ K; Framework material effective drainage porosity is 0.2 ~ 0.8.
Preferred as this programme: heat-obtaining cold drawing and heat release cold drawing are pasted onto on framework material by heat-conducting glue.
Preferred as this programme: phase-change material solid-liquid phase change can occur; Phase-change material latent heat of phase change is greater than 100kJ/kg.
Preferred as this programme: the thermal conductivity factor of heat-conducting glue is greater than 3W/m ﹒ K.
Preferred as this programme: the requirement of phase-change material is according to formula
calculate, wherein Q is single cold storage capacity, and Δ H is phase-change material latent heat of phase change.
Preferred as this programme: the requirement of framework material is according to formula
calculate, wherein Q is single cold storage capacity, and ε is effective drainage porosity, and Δ H is phase-change material latent heat of phase change.
Preferred as this programme: phase-change material is annotated in encapsulating housing with liquid phase state.
Preferred as this programme: framework material is porous foam graphite; Phase-change material is paraffin.
The beneficial effect of this programme can be learnt according to describing of such scheme, and realize used heat owing to utilizing the phase transformation of phase-change material in this scenario and absorb, endothermic process does not need power source, and energy consumption is low; Utilize the phase transformation of phase-change material to absorb heat, energy storage density is high, device volume small scale; By porous media material augmentation of heat transfer, unit interval quantity of heat storage is large, is applicable to high heat flux load heat radiation; Total caloric receptivity is increased, the environment for use of applicable different thermic load, applied range by increasing phase-change material total amount.
As can be seen here, the utility model compared with prior art, has outstanding substantive distinguishing features and progress significantly, and its beneficial effect implemented also is apparent.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the heat exchange principle schematic diagram of heat-obtaining cold drawing and heat release cold drawing.
In figure, 1 is phase-change material filler, and 2 is exhaust outlet, 3 encapsulating housings, and 4 is heat-barrier material, and 5 is heat-obtaining cold drawing, and 6 is framework material, and 7 is heat release cold drawing, and 8 is heat-obtaining loop, and 9 is heat release loop, and 10 is heat source region, and 11 is external refrigeration device.
Detailed description of the invention
All features disclosed in this description, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Arbitrary feature disclosed in this description (comprising any accessory claim, summary and accompanying drawing), unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.
Embodiment 1
The utility model includes the heat-obtaining cold drawing be arranged in encapsulating housing, heat release cold drawing, framework material, phase-change material and heat-barrier material; Framework material is provided with between heat-obtaining cold drawing and heat release cold drawing; Framework material and heat release cold drawing and heat-obtaining cold drawing adopt laminar stacked interleaved to arrange; Phase-change material is filled with in framework material; The inwall of encapsulating housing is provided with heat-barrier material; Heat-obtaining loop is provided with in heat-obtaining cold drawing; Heat release loop is provided with in heat release cold drawing; Heat-obtaining refrigerating medium is provided with in heat-obtaining loop; Heat release refrigerating medium is provided with in heat release loop; Encapsulating housing top is provided with steam vent and phase-change material filler.
After heat-obtaining refrigerating medium absorbs heat from heat source, heat-obtaining cold drawing is entered by closed circuit, heat-obtaining refrigerating medium is heat convection in heat-obtaining loop, heat is passed to phase-change material through heat-obtaining cold drawing, heat-conducting glue, framework material, there is solid-liquid phase change in phase-change material heat absorption, is partly or entirely liquid by solid-state thawing; Heat release refrigerating medium is heat convection in heat release loop, the heat that phase-change material absorbs is passed to heat release refrigerating medium through framework material, heat-conducting glue, heat release cold drawing, heat is passed to peripheral refrigeration plant by closed circuit by heat release refrigerating medium, phase-change material heat release generation liquid-solid-phase changeable is partly or entirely solid-state by liquid curing.
Framework material is Poco Foam foamy graphite, and interlayer thermal conductivity factor is 135w/m ﹒ K, percent opening 75%, and effective drainage porosity is 95%, is of a size of 208mm × 104mm × 21mm, the number of plies 8 layers.
Heat-conducting glue is high heat conduction elargol, and thermal conductivity factor is 55w/m ﹒ K.
Heat-obtaining cold drawing is copper coin, and the number of plies is 4 layers, and cross section, heat-obtaining loop is rectangle, is of a size of 4mm × 4mm, and heat-obtaining central circuits distance is 8mm.
Heat release cold drawing is copper coin, and the number of plies is 3 layers, and cross section, heat release loop is rectangle, is of a size of 6mm × 6mm, and heat release central circuits is apart from being 12mm, and heat release cold drawing is connected with heat release loop by interface pipe.
Phase-change material is n-tetradecane, loading 2.4L, and expansion space accounts for the total effective volume 10% of regenerator, single cold storage capacity 480kJ.
Regenerator original state phase-change material is full solid phase, and heat-obtaining loop loads thermic load 10.64kW, and heat-obtaining refrigerating medium is water, flow is 310L/h, phase-change material liquid-solid-phase changeable time 27s, entrance average temperature 48.56 DEG C, outlet average temperature 18.99 DEG C, Composite Walls is 2500W/m
2﹒ K.
Heat release loop connects refrigeration machine, and actual measurement refrigeration work consumption 300W, heat release refrigerating medium is alcohol, phase-change material solid-liquid phase change time 30min.
Embodiment 2
Substantially the same manner as Example 1, difference is that framework material is of a size of 135mm × 270mm × 40mm, and the number of plies is 2 layers.
Heat-obtaining cold drawing is copper coin, and the number of plies is 1 layer, and cross section, heat-obtaining loop is circular, and internal diameter is 6mm, and heat-obtaining central circuits is apart from being 38mm, and heat-obtaining cold drawing is connected with heat-obtaining loop by interface pipe.
Heat release cold drawing is copper coin, and the number of plies is 1 layer, and cross section, heat release loop is circular, and internal diameter is 6mm, and heat release central circuits is apart from being 40mm, and heat release cold drawing is connected with heat release loop by interface pipe.
Phase-change material is n-tetradecane, loading 2.0L, and expansion space accounts for the total effective volume 18% of regenerator, single cold storage capacity 400kJ.
Regenerator original state phase-change material is full solid phase, and heat-obtaining loop loads thermic load 800W, and heat-obtaining refrigerating medium is water, flow is 3.4L/min, phase-change material liquid-solid-phase changeable time 8min, entrance average temperature 22.56 DEG C, outlet average temperature 17.69 DEG C, Composite Walls is 2400W/m2 ﹒ K.
Heat release loop connects refrigeration machine, and actual measurement refrigeration work consumption 200W, heat release refrigerating medium is R134a, phase-change material solid-liquid phase change time 40min.
Embodiment 3
Substantially the same manner as Example 1, difference is that framework material is for HTC foamy graphite, and interlayer thermal conductivity factor is 245w/mK, percent opening 61%, and effective drainage porosity is 95%, is of a size of 152mm × 194mm × 25mm, and the number of plies is 4 layers.
Heat-obtaining cold drawing is aluminium sheet, and the number of plies is 2 layers, and cross section, heat-obtaining loop is circular, and internal diameter is 6mm, heat-obtaining central circuits apart from being 38mm, heat-obtaining cold drawing by interface pipe be connected heat-obtaining loop.
Heat release cold drawing is aluminium sheet, and the number of plies is 2 layers, and cross section, heat release loop is circular, and internal diameter is 6mm, and heat release central circuits is apart from being 40mm, and heat release cold drawing is connected with heat release loop by interface pipe.
Phase-change material is hexadecane, loading 1.5L, and expansion space accounts for the total effective volume 15% of regenerator, single cold storage capacity 320kJ.
Regenerator original state phase-change material is full solid phase, and heat-obtaining loop loads thermic load 600W, and heat-obtaining refrigerating medium is full triethylamine, phase-change material liquid-solid-phase changeable time 9min, entrance mean temperature 22 DEG C, outlet mean temperature 18 DEG C, Composite Walls 2000W/m
2﹒ K.
Heat release loop connects refrigeration machine, and refrigeration work consumption 200W, heat release refrigerating medium is R134a, phase-change material solid-liquid phase change time 30min.
The utility model is not limited to aforesaid detailed description of the invention.The utility model expands to any new feature of disclosing in this manual or any combination newly, and the step of the arbitrary new method disclosed or process or any combination newly.
Claims (10)
1. a phase change cold-storage device, is characterized in that: include the heat-obtaining cold drawing be arranged in encapsulating housing, heat release cold drawing, framework material, phase-change material and heat-barrier material; Framework material is provided with between described heat-obtaining cold drawing and heat release cold drawing; Described framework material and heat release cold drawing and heat-obtaining cold drawing adopt laminar stacked interleaved to arrange; Phase-change material is filled with in described framework material; The inwall of described encapsulating housing is provided with heat-barrier material; Heat-obtaining loop is provided with in described heat-obtaining cold drawing; Heat release loop is provided with in described heat release cold drawing; Heat-obtaining refrigerating medium is provided with in described heat-obtaining loop; Heat release refrigerating medium is provided with in described heat release loop; Described encapsulating housing top is provided with steam vent and phase-change material filler.
2. a kind of phase change cold-storage device according to claim 1, is characterized in that: one end, described heat-obtaining loop is arranged in heat-obtaining cold drawing, and the other end is arranged in heat source region; One end, described heat release loop is arranged in heat release cold drawing, and the other end is arranged in external refrigeration equipment.
3. a kind of phase change cold-storage device according to claim 1, is characterized in that: the shape of described framework material is block porous honeycomb shape; The material of described framework material is porous foam graphite; Described framework material thermal conductivity factor is 100w/m ﹒ K ~ 300w/m ﹒ K; Described framework material effective drainage porosity is 0.2 ~ 0.8.
4. a kind of phase change cold-storage device according to claim 1, is characterized in that: described heat-obtaining cold drawing and heat release cold drawing are pasted onto on framework material by heat-conducting glue.
5. a kind of phase change cold-storage device according to claim 1, is characterized in that: described phase-change material solid-liquid phase change can occur; Described phase-change material latent heat of phase change is greater than 100kJ/kg.
6. a kind of phase change cold-storage device according to claim 4, is characterized in that: the thermal conductivity factor of described heat-conducting glue is greater than 3W/m ﹒ K.
7. a kind of phase change cold-storage device according to claim 1, is characterized in that: the requirement of described phase-change material is according to formula
calculate, wherein Q is single cold storage capacity, and Δ H is phase-change material latent heat of phase change.
8. a kind of phase change cold-storage device according to claim 1, is characterized in that: the requirement of described framework material is according to formula
calculate, wherein Q is single cold storage capacity, and ε is effective drainage porosity, and Δ H is phase-change material latent heat of phase change.
9. a kind of phase change cold-storage device according to claim 1, is characterized in that: described phase-change material is annotated in encapsulating housing with liquid phase state.
10. a kind of phase change cold-storage device according to claim 1, is characterized in that: described framework material is porous foam graphite; Described phase-change material is paraffin.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520344412.7U CN204694132U (en) | 2015-05-26 | 2015-05-26 | A kind of phase change cold-storage device |
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| CN201520344412.7U CN204694132U (en) | 2015-05-26 | 2015-05-26 | A kind of phase change cold-storage device |
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| CN204694132U true CN204694132U (en) | 2015-10-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833255A (en) * | 2015-05-26 | 2015-08-12 | 中国工程物理研究院应用电子学研究所 | Phase change cold accumulating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833255A (en) * | 2015-05-26 | 2015-08-12 | 中国工程物理研究院应用电子学研究所 | Phase change cold accumulating device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |