CN202582309U - Phase-change heat storage unit - Google Patents
Phase-change heat storage unit Download PDFInfo
- Publication number
- CN202582309U CN202582309U CN2012201559809U CN201220155980U CN202582309U CN 202582309 U CN202582309 U CN 202582309U CN 2012201559809 U CN2012201559809 U CN 2012201559809U CN 201220155980 U CN201220155980 U CN 201220155980U CN 202582309 U CN202582309 U CN 202582309U
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- phase
- thermal storage
- heat
- heat exchanger
- change thermal
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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 phase-change heat storage unit, comprising a container, and at least one heat exchanger arranged in the container, wherein a phase-change heat storage material is filled between the heat exchanger and the wall of the container; and the heat exchanger comprises an input tube and an output tube, wherein the input tube is a spiral coil tube. By using the design aforementioned, phase-change heat storage equipment realizes a modularized design according to the utility model, and a certain quantity of phase-change heat storage equipment can be installed as needed; and moreover, various heat exchangers are designed according to the types of the used heat sources, thus being adaptive to the different heat sources.
Description
Technical field
The utility model relates to a kind of heat-storing device, relates in particular to a kind of phase-change thermal storage unit that can conveniently install.
Background technology
The energy is the basis that the mankind depend on for existence and development; Fast development along with whole world industry; Whole world fossil fuel constantly reduces; Energy shortage and problem of environmental pollution have become the common issue with that countries in the world face, and therefore, improve efficiency of energy utilization, energy-saving and emission-reduction and exploitation regenerative resource and become the important topic that current mankind faces.
Heat-storage technology is to improve the important technology of efficiency of energy utilization and protection environment, has broad application prospects in fields such as the recovery of solar thermal utilization, electric power peak load shifting, industrial waste heat and civilian and militaries.Heat-storing method generally has two kinds; A kind of is sensible heat heat accumulation mode; Utilize object temperature rising store heat, another kind is hidden heat energy storage, is phase-change thermal storage, utilizes the variation of thing phase from environment, to absorb heat or release heat; Thereby the purpose that the ability that obtains stores or discharges, and phase-change thermal storage can also be used in combination with new forms of energy such as solar energy.
In multiple heat-storage technology; The solid-liquid phase change heat accumulation has advantages such as storage density is big, heat accumulation process approximately constant temperature, Volume Changes is little, process is easy to control; Therefore; The research that utilizes phase-change material (Phase Change Material, i.e. PCM) to carry out hidden heat energy storage has received the attention of a plurality of countries in the world.
Phase-change heat-storage material is the core that realizes hidden heat energy storage; Therefore; Be also referred to as phase-change thermal storage Study on Technology emphasis, for example disclosed composite phase-change heat-storage material etc. among disclosed high-temperature phase-change heat storage material, the patent CN101255331A among disclosed solar water heater phase change heat storage material, the patent CN101818292A among the patent CN100334179C.
Phase-change heat-storage material must place the effect of corresponding apparatus (being heat accumulation equipment) its energy storage of competence exertion; And the heat accumulation Equipment Design should make the performance of Btu utilization efficient to maximum, and need satisfy the easy-to-install requirement, in addition; The transformation of phase-change heat-storage material design solid-liquid phase; Also must solve the problem that liquid phase is revealed in the phase transition process, disclose a kind of phase-change thermal storage plate among the patent CN101967857A, be that base material, anhydrous sodium sulfate are that phase-change material, waterglass encapsulate with the stalk; The heat storing plate of preparation can be used for materials for wall, receives very big restriction but be to use; Disclose a kind of ball formula phase change material device among the patent CN201129952Y, solved the problem of solid sedimentation in the phase transition process through the mode of vibrating.But the phase-change thermal storage equipment that above-mentioned patent proposes still exists installation, awkward problem, and efficiency of utilization is low; And existing phase-change thermal storage equipment can't satisfy the needs of different user environment to thermic load.
The utility model content
To phase change material device in the prior art install, use inconvenience, efficiency of utilization is low and can't realize the problem that heat storage capacity disposes as required, the utility model provides a kind of phase-change thermal storage equipment of conveniently installing and using.
Therefore, the purpose of the utility model provides a kind of phase-change thermal storage unit, and said phase-change thermal storage equipment comprises container and places at least one heat exchanger in the said container, is filled with phase-change heat-storage material between said heat exchanger and the chamber wall.
Wherein, said heat exchanger comprises input pipe and efferent duct, and wherein input pipe or efferent duct can be identical or different, and all can be straight tube, curved pipe, waveform pipe, spiral coil etc.Preferably, at least one is a spiral coil in input pipe and the efferent duct.More preferably, input pipe is a spiral coil; Said phase-change thermal storage unit also comprises import that is communicated with the heat exchanger input pipe and the outlet that is communicated with the heat exchanger efferent duct.
According to a kind of preferred embodiment of the said phase-change thermal storage of the utility model unit, said input pipe is a spiral coil, and efferent duct is straight shape pipe or waveform pipe.
The cross section of input pipe and efferent duct can be circular, oval, polygon, or other shape.
Wherein, said efferent duct or input pipe all can be one, two, three or more, merge like at least one efferent duct one end and to be communicated with input pipe, the other end merges and is communicated with heat exchanger exit; Or at least one input pipe one end merges the connection efferent duct, the import of other end merging connection heat exchanger.
The quantity of the heat exchanger in the said container can be one, two or more, and each heat exchanger can be identical or different.
Wherein, said container is cylindricality or L type, and its cross section can be circular, oval, polygon, or other shape.
According to a kind of preferred embodiment of the said phase-change thermal storage of the utility model unit, each heat exchanger input pipe is spiral coil, can be to be positioned at container independently of each other, or mutual coaxial setting; Can be in contact with one another or not contact.
In the described preferred embodiment of the utility model, the arrangement that reclines successively of the helix of the spiral coil of each heat exchanger, or arrange like the dna double helical structure.
A kind of preferred embodiment according to the said phase-change thermal storage of the utility model unit all can be connected with at least one conducting strip inside and outside the spiral coil of said spiral coil, and said conducting strip can adopt methods such as welding, screw to be connected on the helical disk tube wall.
Wherein, the material of said conducting strip for example like metals such as copper, aluminium, iron, or metal alloy.
Wherein, said conducting strip can be an arc, L shaped, waveform, and its length generally is no more than the length of container.Preferably, the conducting strip in spiral coil is a waveform, can increase heat-conducting area like this, does not influence the setting of one or more efferent ducts of heat exchanger simultaneously.
The quantity of said conducting strip can be one, two, three, four or more a plurality of.
According to a kind of preferred embodiment of the said phase-change thermal storage of the utility model unit, said heat exchanger import and outlet can be positioned at the same one or both ends of container, and preferably, the import of all heat exchangers and outlet all are positioned at the same end of container.
According to a kind of preferred embodiment of the said phase-change thermal storage of the utility model unit, also comprise heat insulation layer or heat-insulation layer in the outside of container.
A kind of preferred embodiment according to the said phase-change thermal storage of the utility model unit; Temperature sensing device also is installed; Said temperature sensing device can be installed in the bottom or the top of said phase-change thermal storage equipment; Preferably, at said phase-change thermal storage equipment top and bottom temperature sensing device is installed all.
In the above-mentioned content of the utility model, the material of said container can be insulation material or metal, plastics etc., like PE, PP, PVC, PS, PMMA etc., and is preferably polypropylene (PP), comprises modified polypropene.
In the above-mentioned content of the utility model, said phase-change heat-storage material can be the composite phase-change heat-storage material of inorganic-phase variable heat accumulating, organic phase-change heat accumulating or its composition; According to the phase transition temperature branch, can be high-temperature phase-change heat storage material, low temperature phase change heat accumulating, middle temperature phase-change heat-storage material.The chloride, fluoride, nitrate, sulfate, phosphate, acetate, hydroxide and the hydrate thereof that comprise alkali metal or alkaline-earth metal, and senior aliphatic hydrocarbon, aromatic hydrocarbon, polyalcohol, higher fatty acids, high-grade aliphatic ester, synthetic high polymer phase-change material etc.
The concrete of said phase-change heat-storage material given an example like laurate, palmitic acid, stearic acid, palmitic acid, paraffin, CaCl
26H
2O, Na
2SO
4H
2O, paraffin/graphite composite phase-change material, aliphatic acid/clay composite phase-change material, aliphatic acid/graphite composite phase-change material, stearic acid/SILICA FUME composite phase-change material etc.
Should be understood that the title of above-mentioned " input ", " output " and " import ", " outlet " is the flow direction of limit fluid in said phase-change thermal storage unit not.
The phase-change thermal storage unit that the utility model provides; With heat accumulation phase transformation EM equipment moduleization, can install as required easily, realized the distribution according to need of heat storage capacity; Can efficiently store various heat energy, like the heat of generations such as solar thermal collector, boiler, wooden stove, heat pump, industrial waste heat.
Description of drawings
Fig. 1 is the utility model phase-change thermal storage unit mono heat exchanger structural representation;
Fig. 2 is the utility model phase-change thermal storage unit cross section structure sketch map;
Fig. 3 is the utility model phase-change thermal storage unit heat exchanger structural representation;
Fig. 4 is the utility model phase-change thermal storage unit double heat exchanger partial structurtes sketch map;
Fig. 5 is the utility model phase-change thermal storage unit double heat exchanger structural representation.
The specific embodiment
With reference to the accompanying drawings, the utility model phase-change thermal storage unit is carried out detailed introduction and description through specific embodiment, so that better understand the utility model content, but should be understood that following embodiment does not limit the scope of the utility model.
With reference to Fig. 1, in the present embodiment, said phase-change thermal storage unit comprises container 1, and container 1 is a cylindrical tube, in container 1, is provided with a heat exchanger.
As shown in Figure 1, heat exchanger comprises import 21 and outlet 22, and import 21 connects input pipe 23, and outlet 22 connects efferent duct 24, and efferent duct 24 has three, is communicated with at outlet 22 places to merge.
In the present embodiment, input pipe 23 is a spiral coil, and efferent duct 24 can be arranged on the spiral coil outside, perhaps is arranged in the bung flange of spiral coil.Efferent duct 24 is set to the waveform pipe.
After 23 simplification of spiral coil input pipe, the structure of heat exchanger is as shown in Figure 3 in the present embodiment.
Being filled with phase-change heat-storage material in the gap between heat exchanger and container, is example with paraffin/graphite composite phase-change heat-storage material.
Outer wrap heat-insulation layer at container 1.
During use; Import is connected outside heating agent input channel; Like the heat that solar thermal collector produces, bring into through heating agent in the input pipe 23 of heat exchanger, because input pipe 23 is a spiral coil; Can prolong the flow process and the holdup time of heating agent, therefore can give phase-change heat-storage material with exchange heat fully.Heating agent is seen heat exchanger off through efferent duct 24 then.Certainly, heating agent also can be sent into heat exchanger by efferent duct 24, and sees off through spiral coil input pipe 23, and therefore, the flow direction of heating agent does not receive efferent duct 24 and input pipe 23 and import 21 and exports the restriction of 22 titles.
Simultaneously, input pipe 23 and efferent duct 24 can also with the type of flow of cryogen according to above-mentioned heating agent, carry out heat exchange through heat exchanger and phase-change thermal storage equipment as energy output under the situation that does not have heating agent to carry, heat is exported.
In order to improve heat exchange efficiency, in the present embodiment, can also be in the solenoid of spiral coil or outside be provided with heat exchanger fin, as shown in Figure 2, outer heat exchanger fin 31 all is welded on the spiral coil input pipe 23 with interior heat exchanger fin 32.
Outer heat exchanger fin 31 is the L type, and interior heat exchanger fin 32 is a waveform, and the material of heat exchanger fin can be heat conductivility good metal such as copper, aluminium, also can be heat conductivility good metal alloy.
Embodiment 2
With reference to Fig. 4, in the present embodiment, said phase-change thermal storage unit is the double heat exchanger setting, and each heat exchanger independently exists, and the first heat exchanger input pipe 231 connects the first heat exchanger import, 211, the first heat exchanger efferent ducts 241 and connects first heat exchanger inlet and outlet 221; The second heat exchanger input pipe 232 connects the second heat exchanger import, 212, the second heat exchanger efferent ducts 242 and connects second heat exchanger inlet and outlet 222.
The input pipe quantity of first heat exchanger and second heat exchanger can be identical or different, and is as shown in Figure 4, and the first heat exchanger efferent duct 241 is two, and the second heat exchanger efferent duct 242 is one, but as required, all can be one, two, three or more.
In the present embodiment, the first heat exchanger input pipe 231, the second heat exchanger input pipe 232 are all selected spiral coil, but the two shape can be different.Two spiral coils can be arranged into the double-spiral structure that is similar to DNA, or as shown in Figure 4, and the first heat exchanger input pipe 231, the second heat exchanger input pipe 232 abut in together each other.
In said phase-change thermal storage unit; All right mounting temperature sensor; (end of import 21 among Fig. 1) and bottom all can be provided with a temperature sensor at the top; The temperature sensor at top is used to detect phase-change thermal storage equipment and allows the maximum temperature that reaches, and the temperature sensor of bottom is used to detect target temperature in the phase-change thermal storage equipment.Under the preferable case, equal two temperature sensors at top and bottom back up between two temperature sensors at top and between the temperature sensor of bottom each other, can prevent the temperature detection failure that fault causes.
In the foregoing description 1 and 2, the export and import of heat exchanger preferably all is arranged on the same end of hydrostatic column, only need import and outlet be connected on the heating agent conveyance conduit during installation to get final product.
In the foregoing description 1 and 2, container can also be designed to L shaped pipe, can the phase-change thermal storage equipment level be installed like this.Make that phase-change thermal storage equipment profile is more flexible, do not receive the restriction of fabricating yard.
Through above-mentioned design, the utility model makes phase-change thermal storage equipment realize modularized design, and the phase-change thermal storage unit of some can be installed as required, and according to the kind of used thermal source, designs multiple heat exchanger, can adapt to different thermals source.
More than the specific embodiment of the utility model is described in detail, but it is as example, the utility model is not restricted to the specific embodiment of above description.To those skilled in the art, any equivalent modifications that this practicality is carried out with substitute also all among the category of the utility model.Therefore, impartial conversion and the modification under spirit that does not break away from the utility model and scope, done all should be encompassed in the scope of the utility model.
Claims (9)
1. a phase-change thermal storage unit is characterized in that, said phase-change thermal storage unit comprises container and places at least one heat exchanger in the said container, is filled with phase-change heat-storage material between said heat exchanger and the chamber wall;
Wherein, said heat exchanger comprises input pipe and efferent duct, and wherein, at least one is a spiral coil in input pipe and the efferent duct; Said phase-change thermal storage unit also comprises import that is communicated with the heat exchanger input pipe and the outlet that is communicated with the heat exchanger efferent duct.
2. phase-change thermal storage according to claim 1 unit is characterized in that, said import and outlet all are positioned at the same end of container.
3. phase-change thermal storage according to claim 1 unit is characterized in that, also comprises heat insulation layer or heat-insulation layer in the outside of container.
4. phase-change thermal storage according to claim 1 unit is characterized in that, all is connected with at least one conducting strip inside and outside the spiral coil of said spiral coil.
5. phase-change thermal storage according to claim 1 unit is characterized in that, said efferent duct quantity is at least one.
6. phase-change thermal storage according to claim 5 unit is characterized in that, said at least one efferent duct one end merges and is communicated with input pipe, and the other end merges and is communicated with heat exchanger exit.
7. phase-change thermal storage according to claim 1 unit is characterized in that, said phase-change thermal storage equipment also is equipped with temperature sensing device.
8. phase-change thermal storage according to claim 7 unit is characterized in that, said phase-change thermal storage equipment top and bottom all are equipped with temperature sensing device.
9. phase-change thermal storage according to claim 1 unit is characterized in that, comprises at least two heat exchangers, and the spiral coil of said at least two heat exchangers is arranged independently of each other or reclined successively and arranges or arrange with the dna double helical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201559809U CN202582309U (en) | 2012-04-13 | 2012-04-13 | Phase-change heat storage unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201559809U CN202582309U (en) | 2012-04-13 | 2012-04-13 | Phase-change heat storage unit |
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| Publication Number | Publication Date |
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| CN202582309U true CN202582309U (en) | 2012-12-05 |
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ID=47251712
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012201559809U Expired - Lifetime CN202582309U (en) | 2012-04-13 | 2012-04-13 | Phase-change heat storage unit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103376011A (en) * | 2012-04-13 | 2013-10-30 | 极地熊（上海）储能技术有限公司 | Phase-change heat accumulation unit |
| CN103528220A (en) * | 2013-10-24 | 2014-01-22 | 镇江新梦溪能源科技有限公司 | Spiral solar heat reservoir |
| CN104792207A (en) * | 2015-04-17 | 2015-07-22 | 天津商业大学 | Phase-change energy storage box |
| CN105135923A (en) * | 2015-09-22 | 2015-12-09 | 陈志强 | Compact heat accumulator |
| CN107166771A (en) * | 2017-05-12 | 2017-09-15 | 山东大学 | Quick-action type wall hanging Natural Circulation phase-change solar regenerative apparatus and system |
-
2012
- 2012-04-13 CN CN2012201559809U patent/CN202582309U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103376011A (en) * | 2012-04-13 | 2013-10-30 | 极地熊（上海）储能技术有限公司 | Phase-change heat accumulation unit |
| CN103528220A (en) * | 2013-10-24 | 2014-01-22 | 镇江新梦溪能源科技有限公司 | Spiral solar heat reservoir |
| CN104792207A (en) * | 2015-04-17 | 2015-07-22 | 天津商业大学 | Phase-change energy storage box |
| CN105135923A (en) * | 2015-09-22 | 2015-12-09 | 陈志强 | Compact heat accumulator |
| CN107166771A (en) * | 2017-05-12 | 2017-09-15 | 山东大学 | Quick-action type wall hanging Natural Circulation phase-change solar regenerative apparatus and system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |
|
| CX01 | Expiry of patent term |