CN101576322B - Solar energy collection, transfer and storage system - Google Patents
Solar energy collection, transfer and storage system Download PDFInfo
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- CN101576322B CN101576322B CN2009100047859A CN200910004785A CN101576322B CN 101576322 B CN101576322 B CN 101576322B CN 2009100047859 A CN2009100047859 A CN 2009100047859A CN 200910004785 A CN200910004785 A CN 200910004785A CN 101576322 B CN101576322 B CN 101576322B
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- heat
- solar energy
- storing device
- solar
- heat accumulation
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/47—Mountings or tracking
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention relates to a system for collecting solar energy, transferring the collected solar energy to a storage device and then transferring the solar energy to load using the solar energy by the storage device. The system comprises a solar heat collector, a heat transfer device and a heat storage device of which the inside is provided with a heat storage material; the whole system consists ofthe solar heat collector and heat transfer medium tubes connected with the solar heat collector, the heat storage device and the heat system for a terminal; heat transfer medium adopts water or hydra ulic oil and fully utilizes the characteristics of good fluidity and low viscosity, wherein the heat storage device is a vessel with double-layer wall; and the space between the double layers of the wall is vacuumized.
Description
Technical field
The present invention relates to a kind of gather solar energy and the solar energy that is collected be transferred to storage device carry out system for transmitting by storage device to the load of using solar energy again, in system of the present invention, include solar thermal collector, heat transfer apparatus and in be provided with the heat-storing device of heat accumulating.
Background technology
Solar energy is a kind of inexhaustible, the energy of using not to the utmost, and solar energy is public energy source, is again regenerative resource, can directly or indirectly convert any type of energy to.Its aboundresources, energy is huge, is example with China, and most regional annual day, amount of radiation was at 4kW h/m
2More than, and the Tibet region is up to 7kW h/m
2, we can say that solar energy is a kind of inexhaustible, the energy of using does not to the utmost have any pollution to environment, both can freely obtain, and need not to load carrying again.Have the advantages that just because of solar energy these other energy can't be compared, human development and utilization to it comes into one's own day by day.In oil price rapid fluctuation at present, under the international overall background of storage finite sum energy scarcity, it effectively utilizes becomes the leading-edge field that everybody falls over each other research and development.At present, extensive uses such as solar storage battery, pot-type boiler have obtained no small achievement.But solar energy is difficult to realize the long-time continuous heat supply.How to effective collection, the high efficiency of transmission of solar energy, particularly how solar energy being stored, still is a problem that urgency is to be solved to realize that long-time continuous is used solar energy.
Chinese invention patent application 200810046815.8 discloses a kind of solar heat-storing device, it is to utilize the solar heat-storing device of gas as heat transfer medium, comprising heat accumulation chamber housing, insulation material, metallic conduit, bracing frame, air inlet pipe, escape pipe, heat accumulation chamber door; Heat accumulation chamber housing is made up of heat accumulation chamber outer wall and heat accumulation chamber interior walls, and heat accumulation chamber door and heat accumulation chamber interior walls surround the heat accumulation space of sealing; Air inlet pipe and escape pipe are asymmetric to be arranged on the housing of heat accumulation chamber, and air inlet pipe, escape pipe communicate with the heat accumulation space respectively; At least be provided with one deck bracing frame in the heat accumulation space, bracing frame is fixedlyed connected with the heat accumulation chamber interior walls, is placed with metallic conduit on the bracing frame, is packaged with heat-storing material in the metallic conduit.Disclose according to its application documents, the heat transfer medium in the heat accumulation space of this patent application is a gas, and used heat-storing material is metal, alloy, fuse salt or sodium carbonate and magnesian composite phase-change material.Owing to its phase transition temperature of heat-storing material that this patent application is used is higher, desire is difficult to realize the heat-storing material phase-transition heat-storage of this technical scheme with common solar energy heat collector heating as heat transfer medium gas, and adopts its cost of special heat collector and structure may be difficult to accept in present stage.
Chinese invention patent application 200810018805.3 discloses in a kind of hot pipe type focusing energy storage type high-temp solar heat collector and can solve solar heat and drive refrigerated air-conditioning system and need higher solar energy heating temperature problem; Wherein, sunshine focuses on the vacuum heat collection pipe (3) by reflecting plate (2), the photo-thermal conversion is carried out in pipe (31) outer surface absorption solar radiation in the vacuum heat collection pipe, its heat is absorbed by red sugar alcohol phase-change material (X) in the thermal regenerator container (6), aqueous water in carbon steel-water heat pipe (4) evaporator section (42) evaporates the water of steam in heat pipe (4) condensation segment (41) condensation heat heating heat collection water tank (1) after absorbing the latent heat that phase-change material (X) solidifies release.Adopt heat pipe (4) to transmit media and can realize not having different transfer of heat raising collecting efficiency as heat; Rotatable parabolic reflecting plate (2) can be followed the tracks of the sunshine incident direction and be realized that at utmost the solar light focusing effect improves heat-collecting temperature; The cycle variation that the use of phase-transition heat-storage medium (X) has overcome intensity of solar radiation has realized steady flow of heat output.This technical scheme has still adopted the Columnating type solar acquisition technique, the complexity that its whole structure relatively also can compare.
China's utility model patent 200720072219.8 discloses a kind of variant heat pipe heat accumulation device, and it comprises accumulation of heat cylindrical shell, heat pipe, and heat pipe places in the accumulation of heat cylindrical shell with parallel form, is set with fin on the heat pipe, the regenerator filling phase-change material in the accumulation of heat cylindrical shell; Accumulation of heat cylindrical shell bottom is equipped with the heat donor fluid passage that separates with a baffle plate and regenerator, and the one end is connected with fluid inlet tubes, and the other end is connected with fluid outlet pipe; The regenerator upper end is connected with filling phase-change material inlet tube, and the lower end is connected with filling phase-change material outlet; Storage heater also comprises a heat exchanger, and its underpart links to each other with the heat pipe lower end by a pipeline, and top links to each other with the heat pipe upper end by a pipeline.Still there are above-mentioned the deficiencies in the prior art in this patent.
Summary of the invention
The invention provides a kind of integrated system that overcomes collection, transmission and the storage solar energy of prior art deficiency, this system can be when sunlight be abundant, fully collect solar energy, and through transmission system constantly continuously to the user terminal heat supply, simultaneously can in heat storage can, store unnecessary heat, utilize store heat night or when overcast and rainy uninterruptedly to using the heat load heat supply, realize the long-time continuous heating system, realize the coupling of system capacity on time and space.
System of the present invention comprise solar thermal collector, heat transfer apparatus and in be provided with the heat-storing device of heat accumulating, whole system is by solar thermal collector, constitute with the defeated thermal medium pipe that hot system links to each other with solar thermal collector, heat-storing device and terminal, defeated thermal medium adopts water or hydraulic oil among the present invention, make full use of the characteristics that it flows, viscosity is low, heat-storing device wherein is for having the double walled container, and is evacuated between double wall.Because heat-storing device of the present invention is the container that has vacuum interlayer, and it is had than the better heat insulation effect of prior art, reduces the loss of heat to greatest extent.
The outer wall of heat-storing device of the present invention is outside equipped with heat insulation layer, perhaps also is provided with heat insulation layer in the inwall of heat-storing device.Can make heat-storing device that best heat insulation effect is arranged after adopting this technical scheme, further reduce the loss of heat.
Heat-storing device of the present invention inside is provided with on the supporting clapboard that is fixed in the container, places the heat accumulation rod pipe that is filled with heat accumulating in it, is positioned at the outer space of heat accumulation rod in the heat-storing device and fills with the defeated hot fluid medium of storage, as water or hydraulic oil.Heat accumulation rod of the present invention is made corrugated tank with thin-wall metal, and this structure one can effectively solve the thermal deformation that produces owing to thermal coefficient of expansion is different with inner filling material; It two can make full use of the good heat conductivility of thin-wall metal; Its three, in actual installation,, show as accompanying drawing 2 with each heat accumulation rod waveform interlaced arrangement, can play the baffling effect, make defeated thermal medium flow complex shape and tortuous the variation strengthened heat accumulation efficient; The 4th, heat accumulation rod corrugated increased the heat transfer area with defeated thermal medium greatly, heat can be stored in the heat accumulation rod at short notice.
The heat accumulating of placing in the heat accumulation rod among the present invention is the supersaturated sodium acetate crystal, in the heat accumulation rod, be provided with the free-ended sheet metal that is fixed in expansion link, and the supersaturated sodium acetate in the end of sheet metal and the heat accumulation rod contacts, the restrain end of expansion link is fixed on the Connection Block, is provided with back-moving spring and electromagnetic vibrator behind the Connection Block.The present invention also can adopt piezoelectric ceramic devices as the energy of vibrator the source to take place, when color piezoelectric ceramic devices just can not use back-moving spring.It is the supersaturated sodium acetate crystal that the present invention selects heat-storage medium for use, and supersaturated sodium acetate undergoes phase transition behind draw heat and is converted into solution, can store a large amount of heat energy.Even this solution at room temperature can not undergo phase transition crystal yet and separate out, if but the sheet metal that is positioned at it vibrates, will disturbance liquid, produce amount of localized heat simultaneously, this can make near the strength of fluid the sheet metal unbalanced, and big that of concentration just becomes nucleus, and crystal can be grown on nucleus fast, the crystallization phase transformation takes place, and crystallization process can release heat.Test shows that the heat that 1kg sodium acetate crystal is discharged is approximately 336KJ, is equivalent to the 1kg coolant-temperature gage and reduces the heat that 80 degree are discharged.This material thermal fatigue property is good, thermal change response fast, can long-term reversible repeated use, and cost is extremely low.The present invention is fixed with the vibrator of Electromagnetic Drive at the restrain end of the expansion link that is connected with sheet metal, it is equivalent to the phase transformation trigger, under design temperature, start this trigger, can make electromagnetic oscillation device work, under the effect of back-moving spring and electromagnetic force, drive expansion link and do axial vibration, can drive the sheet metal motion in the heat storage tube, impel heat accumulating to undergo phase transition, in this temperature crystallization heat release, and pass to different loads by defeated thermal medium and use.
Solar energy heat collector is arranged on the automatic sun tracking device in the system of the present invention, can make heat collector follow the sun's motion orbiting motion, make heat collector daylighting face be in sun direct projection position all the time, the maximum possible collecting energy makes its final conversion ratio near theoretical level.
Description of drawings
Fig. 1 is solar energy acquisition transmission of the present invention and stocking system schematic diagram.Fig. 2 is for placing the bellows schematic diagram of heat accumulating among the present invention.Fig. 3 is electromagnetic vibrator and vibrating arm structural representation.
The specific embodiment
Accompanying drawing provides one embodiment of the present of invention, and the present invention is below in conjunction with the accompanying drawing explanation:
As seen from Figure 1, the present invention is made up of solar heat collector 29, heat-storing device 30, defeated pipe line 3,12 and 12b, 3b etc.Wherein:
Heat collector of the present invention 29 is referring to Fig. 1, the housing 1 that has heat-insulation layer is provided with cloche 5, at cloche the daylighting metallic plate is set for 5 times and has 7, on metallic plate 7, scribble selective coating 6, form box-like closing-sunning type solar energy heat collector, its structure is identical with prior art basically, comprises that the selective coating on it all has introduction in the prior art.Be provided with the heat absorbing end of heat pipe 2 under the metallic plate 7, the release end of heat of heat pipe 2 is positioned within the housing 1, and each heat pipe 2 usefulness dividing plate 9 is fixing.Be filled with water or hydraulic oil 4 in the housing 1 as the thermal-arrest medium, medium 4 through manage 3 and pipe 12 be communicated with heat-storing device 30, housing 1 is installed on the sun tracker 10 that is fixed on the support 11.
Heat-storing device 30 of the present invention is a container that has double-deck double wall 14 and 15, is evacuated between 14 and 15, is fixed with the bellows 17 that is built-in with heat accumulating with gripper shoe 16 in container; Fill with heat storage fluid medium 4 in the container and in the space outside the bellows 17.Be placed with heat accumulating 21 in the tube wall 22 of bellows 17, referring to Fig. 2, what use in the present invention is supersaturated sodium acetate, manages 17 closed at both ends, or seals with plug 20.Also be provided with a vibrating device 18 in the heat-storing device, the internal structure of vibrating device 18 is referring to Fig. 3, it is made of expansion link 24 and electromagnetic vibrator 27, and wherein the restrain end of expansion link 24 is fixed on the electromagnetic vibrator 27, and electromagnetic vibrator is fixed in the Connection Block 26 with flange 25.Also be provided with the free end of sheet metal 23 at pipe in 17, and the free end of stretching in the sheet metal 23 in the pipe 17 contacts with heat accumulating 21.The free end of the restrain end of sheet metal 23 and expansion link 24 fixes, and when vibration takes place electromagnetic vibrator, can drive sheet metal 23 vibrations, produces disturbance in heat accumulating 21.In the container of heat-storing device 29, be provided with temperature element 19 in addition.Also be provided with pipe 12b in the heat-storing device 30 and be communicated with hot system 28 with terminal, realize to defeated heat with hot cell with pipe 3b.
Solar energy heat collector is arranged on the automatic sun tracking device in the system of the present invention, can make heat collector follow the sun's motion orbiting motion, make heat collector daylighting face be in sun direct projection position all the time, the maximum possible collecting energy makes its final conversion ratio near theoretical level.
Heat-storing device of the present invention also can be referred to as heat storage can, and the container that forms that is evacuated in its chuck makes it can effectively prevent heat diffusion and loss with extraneous adiabatic; Place the heat accumulation bar material in its inner corrugated nozzle.The heat storage fluid medium is filled with in other space beyond the bellows in heat storage can, and links to each other with heating second layer passage in the heat collector.After heat collector is gathered heat by the thermal-arrest medium with heat transferred heat pipe bundle 2, fluid heat transfer medium in the heat pipe Shu Jiare second layer passage, heated fluid rises, enter in the heat storage can, cold fluid heat transfer medium in the heat storage can adds in the heat collector second layer passage simultaneously, forms the fluid self-circulation system.Under this self-loopa situation, because the self-loopa factor of fluid makes convection heat transfer' heat-transfer by convection speed increase; Corrugated heat storage tube has increased heat transfer area simultaneously, and constantly changes the direction of fluid, has further strengthened heat-transfer effect.The heat-transfer fluid medium passes to the heat accumulation rod again fast with heat and stores in heat storage can like this.
The present invention selects heat-storage medium-supersaturated sodium acetate crystal for use, undergoes phase transition behind draw heat and is converted into solution, can store a large amount of heat energy.Even this solution at room temperature can not undergo phase transition crystal yet and separate out.When starting electromagnetic oscillation device, can drive the sheet metal that is positioned at heat-storing device vibrates, the supersaturated sodium acetate of liquid towards produces disturbance, produce amount of localized heat simultaneously, this can make near the strength of fluid the sheet metal unbalanced, and big that of concentration just becomes nucleus, and crystal can be grown on nucleus fast, the crystallization phase transformation takes place, and crystallization process can release heat.In this temperature crystallization heat release, and pass to different loads by defeated thermal medium and use.
Claims (4)
1. a solar energy acquisition transmits and stocking system, comprise solar thermal collector, be provided with the heat-storing device of heat accumulating in it, with solar thermal collector, the defeated thermal medium pipe that heat-storing device and terminal link to each other with hot system, heat-storing device wherein is for having evacuated container between double wall and double wall, outside the outer wall of heat-storing device, also be provided with heat insulation layer, be provided with heat insulation layer in the inwall of heat-storing device, heat-storing device inside is provided with on the supporting clapboard that is fixed in the container, be placed with the heat accumulation rod of heat accumulating in it, be positioned at the outer space of heat accumulation rod in the heat-storing device and fill with the defeated hot fluid medium of storage, it is characterized in that the heat accumulating of placing in the heat accumulation rod is the supersaturated sodium acetate crystal, in the heat accumulation rod, be provided with the free-ended sheet metal that is fixed in expansion link, and the supersaturated sodium acetate crystal in the free end of sheet metal and the heat accumulation rod contacts, the restrain end of expansion link is fixed on the Connection Block, is provided with back-moving spring and electromagnetic vibrator behind the Connection Block.
2. a kind of solar energy acquisition transmission according to claim 1 and stocking system is characterized in that electromagnetic vibrator is piezoelectric ceramic devices.
3. a kind of solar energy acquisition transmission according to claim 2 and stocking system is characterized in that the heat accumulation rod is a corrugated tube of making shell with thin-wall metal, the staggered assembling of adjacent heat accumulation rod waveform.
4. a kind of solar energy acquisition transmission according to claim 3 and stocking system is characterized in that solar thermal collector is arranged on the automatic sun tracking device in the system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100047859A CN101576322B (en) | 2009-02-25 | 2009-02-25 | Solar energy collection, transfer and storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100047859A CN101576322B (en) | 2009-02-25 | 2009-02-25 | Solar energy collection, transfer and storage system |
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| Publication Number | Publication Date |
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| CN101576322A CN101576322A (en) | 2009-11-11 |
| CN101576322B true CN101576322B (en) | 2011-04-13 |
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| CN2009100047859A Expired - Fee Related CN101576322B (en) | 2009-02-25 | 2009-02-25 | Solar energy collection, transfer and storage system |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818947B (en) * | 2010-03-10 | 2011-08-31 | 赖正平 | Solar oil heat conducting and supplying device |
| CN102620342A (en) * | 2012-04-26 | 2012-08-01 | 王凤文 | Full-automatic environment-friendly and energy-efficient solar heating and domestic water heating dual-purpose system |
| CN102679563B (en) * | 2012-06-21 | 2014-03-05 | 山东大学 | Multifunctional solar energy storage system and method |
| CN108150370A (en) * | 2017-12-23 | 2018-06-12 | 青岛瑞恩吉能源科技有限公司 | A kind of solar power system and electricity-generating method |
| CN110986382A (en) * | 2019-12-27 | 2020-04-10 | 长春工程学院 | Distributed solar heat pipe heat collection and storage self-circulation heating system and heating method |
| CN112968657A (en) * | 2021-02-05 | 2021-06-15 | 浙江工商大学 | Photo-thermal coupling system and application |
| CN113150972A (en) * | 2021-02-27 | 2021-07-23 | *** | Automatic temperature control device for organic waste biological decomposition |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2324498Y (en) * | 1998-03-04 | 1999-06-16 | 赵世华 | Sunshade type solar energy heat-storing cabinet |
| CN101226006A (en) * | 2008-01-25 | 2008-07-23 | 东南大学 | Hot pipe type focusing energy storage type middle high temperature solar heat collector |
| CN101226035A (en) * | 2008-01-29 | 2008-07-23 | 武汉理工大学 | Solar heat-storing device using gas as heat transfer medium |
| CN201093907Y (en) * | 2007-07-05 | 2008-07-30 | 上海海事大学 | Novel phase change type heat tube heat accumulator |
| CN201373603Y (en) * | 2009-02-25 | 2009-12-30 | 张培洲 | Solar collecting, transmitting and storing system |
-
2009
- 2009-02-25 CN CN2009100047859A patent/CN101576322B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2324498Y (en) * | 1998-03-04 | 1999-06-16 | 赵世华 | Sunshade type solar energy heat-storing cabinet |
| CN201093907Y (en) * | 2007-07-05 | 2008-07-30 | 上海海事大学 | Novel phase change type heat tube heat accumulator |
| CN101226006A (en) * | 2008-01-25 | 2008-07-23 | 东南大学 | Hot pipe type focusing energy storage type middle high temperature solar heat collector |
| CN101226035A (en) * | 2008-01-29 | 2008-07-23 | 武汉理工大学 | Solar heat-storing device using gas as heat transfer medium |
| CN201373603Y (en) * | 2009-02-25 | 2009-12-30 | 张培洲 | Solar collecting, transmitting and storing system |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2007-327670A 2007.12.20 |
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