CN105953444B - A kind of phase-change thermal storage solar water heater with overheating preventing structure - Google Patents
A kind of phase-change thermal storage solar water heater with overheating preventing structure Download PDFInfo
- Publication number
- CN105953444B CN105953444B CN201610337282.3A CN201610337282A CN105953444B CN 105953444 B CN105953444 B CN 105953444B CN 201610337282 A CN201610337282 A CN 201610337282A CN 105953444 B CN105953444 B CN 105953444B
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- phase
- change
- water heater
- solar water
- thermal
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S60/00—Arrangements for storing heat collected by solar heat collectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/70—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
-
- 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
- Y02E10/44—Heat exchange systems
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention provides a kind of phase-change thermal storage solar water heater with overheating preventing structure,Including water inlet pipe,Outlet pipe,Phase-change thermal storage solar water heater body and radiator,Adiabatic covering and several vacuum tubes arranged side by side are provided with phase-change thermal storage solar water heater body,Phase-change heat-storage material is located in vacuum tube,Radiator includes heat conductive rod and fin,It is characterized in that,Several vacuum tubes arranged side by side have been respectively coated by thermal scattering layer,When the temperature of phase-change heat-storage material is higher than the printing opacity change threshold temperature of thermal scattering layer,Thermal scattering layer is changed into scattering from printing opacity,Solar radiation is prevented to reach vacuum tube,And solar radiation is scattered into heat conductive rod surface,Solar radiation is radiated by heat conductive rod sorption enhanced to be transferred to the fin of radiator after heat,So as to prevent the temperature of phase-change heat-storage material from raising,Realize the overtemperature protection to phase-change thermal storage solar water heater.
Description
Technical field
The present invention relates to technical field of solar water heaters, specifically a kind of phase-change thermal storage with overheating preventing structure
Solar water heater.
Background technology
Solar thermal utilization be degree of commercialization highest in new and renewable sources of energy, using most common technology it
One, and huge energy conservation and environmental protection benefit is brought, China is that solar water heater production is most, possesses solar water heater
The country that family's quantity is more, potential market is maximum.
Phase-change thermal storage solar water heater is the high solar water heater of a kind of small volume, energy storage density.Phase-change thermal storage
It is mainly characterized by, the storage and utilization of energy is realized using the latent heat of phase change of phase-change material.When user when not in use, phase transformation storage
The inside of heat solar water heater does not have current by the way that solar radiant energy is changed into thermal energy storage in phase-change heat-storage material.When
For user in use, current flow through phase-change thermal storage solar water heater, current and phase-change heat-storage material carry out heat exchange, heat with
Current take phase-change thermal storage solar water heater out of.But if solar radiation is very strong, phase-change thermal storage solar heat is not used in user
During hydrophone, the energy accumulation of phase-change heat-storage material is excessive, can make it that the temperature of phase-change heat-storage material is too high, can be damaged because of overheat
Phase-change thermal storage solar water heater.Therefore, overtemperature protection is carried out to phase-change heat-storage material using rational radiating mode, is phase transformation
The subject matter that heat-storage solar water heater faces.
Chinese patent CN 103557599A propose that one kind installs shade fabrics in solar water heater, pass through remote control
Motor, the position of mobile shade fabrics, change the area that thermal-collecting tube of solar water heater receives sunshine, realize to solar heat
Hydrophone is shined upon the regulation of area, reaches overtemperature protection purpose.Itself the disadvantage is that, regulation action based on shining upon
Just, the actual temperature height inside water heater can not be based on shining upon actual temperature inside power, rather than water heater
Power accurately inferred, therefore can not to water heater overheat play real protection.Chinese patent CN 204268733U are carried
Go out using the temperature and water level in temperature sensor and liquid level sensor collection attemperater, roller shutter is then controlled by single-chip microcomputer
The work of motor, make window-blind in window-blind track on move, realize the tune that area is shined upon to solar water heater
Section, it is therefore prevented that solar energy heat collection pipe temperature is too high.It is not the disadvantage is that, regulation action is based on the water temperature and water level in water tank
Directly to the temperature and pressure of phase-change heat-storage material, not yet delivered in house or long-term unoccupied, can not when running water is obstructed
Play a part of overtemperature protection；And system complex, cost are very high.
The content of the invention
In view of this, the invention provides a kind of phase-change thermal storage solar water heater with overheating preventing structure, to solve
The problem of being certainly difficult to effectively provide overtemperature protection in the prior art, its technical scheme is as follows：
A kind of phase-change thermal storage solar water heater with overheating preventing structure, including water inlet pipe, outlet pipe, phase-change thermal storage are too
It is positive can water heater body and radiator, provided with adiabatic covering and several are arranged side by side true in phase-change thermal storage solar water heater body
Blank pipe, phase-change heat-storage material are located in vacuum tube, and it is intrinsic some that radiator includes insertion phase-change thermal storage solar water heater
Individual heat conductive rod arranged side by side and the fin positioned at phase-change thermal storage solar water heater body exterior, several heat conductive rods and several
Vacuum tube is alternately arranged, it is characterised in that several vacuum tubes arranged side by side have been respectively coated by thermal scattering layer, when phase-change thermal storage material
When the temperature of material is higher than the printing opacity change threshold temperature of thermal scattering layer, thermal scattering layer is changed into scattering from printing opacity, prevents the sun
Light radiation reaches vacuum tube, and solar radiation is scattered into heat conductive rod surface, and solar radiation is by heat conductive rod sorption enhanced
The fin that radiator is transferred to after heat is radiated, and so as to prevent the temperature of phase-change heat-storage material from raising, is realized to phase transformation
The overtemperature protection of heat-storage solar water heater.
Hollow tube is additionally provided with described vacuum tube, hollow tube includes hollow tube water inlet end and hollow tube water side, hollow
Water inlet tube end is connected with the water inlet pipe, and hollow tube water side is connected with the outlet pipe.
There is a gap between the heat conductive rod and the thermal scattering layer.
The thermic printing opacity of the thermal scattering layer, which becomes, turns to reversible process, after the temperature of phase-change heat-storage material reduces, heat
Scattering layer is caused to recover the pellucidity before printing opacity change, solar radiation can pass through thermal scattering layer and reach vacuum tube.
The thermal scattering layer, temperature are transparence when being less than printing opacity change threshold temperature, and temperature is higher than printing opacity change threshold
It is opalescence disperse state during value temperature.
As further preferred, the radiator is metal, plastics or the ceramic material that thermal conductivity is more than 20W/m.K.
As further preferred, the heat conductive rod surface uniformly coats the pitch-dark layer that thermal conductivity is more than 1W/m.K, to absorb
Heat radiation.
As further preferred, the printing opacity change threshold temperature of the thermal scattering layer is more than 60 DEG C.
As further preferred, the adiabatic covering is by the vacuum tube, heat conductive rod and heat conductive rod and thermal scattering layer
Between gap cladding get up.
As further preferred, the thermal scattering layer is polymer blending material, liquid crystal material or hydrogel material.
Above-mentioned technical proposal has the advantages that：
The present invention compared with the existing technology, is radiated using radiator, and radiator includes several insertion phase transformations side by side
The intrinsic heat conductive rod of heat-storage solar water heater and positioned at phase-change thermal storage solar water heater body exterior fin, heat conductive rod
It is alternately arranged with vacuum tube, cladding thermal scattering layer outside vacuum tube, when the temperature of phase-change heat-storage material is higher than thermal scattering layer
Printing opacity change threshold temperature when, thermal scattering layer is changed into scattering from printing opacity, prevents solar radiation from reaching vacuum tube, and will too
Solar irradiation scatters to heat conductive rod surface, and solar radiation is the radiating that radiator is transferred to after heat by heat conductive rod sorption enhanced
Piece is radiated, and so as to prevent the temperature of phase-change heat-storage material from raising, realizes the overheat guarantor to phase-change thermal storage solar water heater
Shield.The radiating mode of the present invention has the advantages of cost is low, simple, reliable.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is the cross-sectional view of the phase-change thermal storage solar water heater of the embodiment of the present invention；
Fig. 2 is the side view of the phase-change thermal storage solar water heater of the embodiment of the present invention；
Fig. 3 is the top cross-sectional view of the phase-change thermal storage solar water heater of the embodiment of the present invention；
Reference in figure is：1st, water inlet pipe；2nd, outlet pipe；3rd, phase-change thermal storage solar water heater body；4th, radiate
Body；11st, hollow tube water inlet end；21st, hollow tube water side；31st, vacuum tube；32nd, thermal scattering layer；33rd, gap；34th, adiabatic bag
Layer；311st, phase-change heat-storage material；41st, heat conductive rod；42nd, fin.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
It refer to Fig. 1, a kind of phase-change thermal storage solar water heater with overheating preventing structure, including water inlet pipe 1, outlet pipe
2nd, phase-change thermal storage solar water heater body 3 and radiator 4, interior be provided with of phase-change thermal storage solar water heater body 3 have coated heat
Several vacuum tubes arranged side by side 31 of scattering layer 32 and adiabatic covering 34 are caused, phase-change heat-storage material 311 is located in vacuum tube 31, dissipates
Hot body 4 is comprising several heat conductive rods arranged side by side 41 in insertion phase-change thermal storage solar water heater body 3 and positioned at phase-change thermal storage
Fin 42 outside solar water heater body 3, several heat conductive rods 41 are alternately arranged with several vacuum tubes 31, work as phase transformation
When the temperature of heat accumulating 311 is higher than the printing opacity change threshold temperature of thermal scattering layer 32, thermal scattering layer 32 is changed into from printing opacity
Scattering, prevent solar radiation from reaching vacuum tube 31, and solar radiation is scattered into the surface of heat conductive rod 41, solar radiation quilt
The sorption enhanced of heat conductive rod 41 is radiated to be transferred to the fin 42 of radiator 4 after heat, so as to prevent phase-change heat-storage material
311 temperature rise, realizes the overtemperature protection to phase-change thermal storage solar water heater.
Hollow tube is additionally provided with described vacuum tube 31, hollow tube includes hollow tube water inlet end 11 and hollow tube water side
21, hollow tube water inlet end 11 is connected with water inlet pipe 1, and hollow tube water side 21 is connected with outlet pipe 2.
Fig. 2 and Fig. 3 are refer to, there is a gap 33 between the heat conductive rod 41 and the thermal scattering layer 32, it is described to lead
Hot pin 41 separates with the thermal scattering layer 32, between the two without heat transfer, when the temperature of phase-change heat-storage material 311 is less than
During the printing opacity change threshold temperature of thermal scattering layer 32, heat transfer, which will not occur, for the heat of the phase-change heat-storage material 311 causes
Heat losses.
The thermal scattering layer 32, temperature are transparence when being less than printing opacity change threshold temperature, and temperature changes higher than printing opacity
It is opalescence disperse state during threshold temperature.
The thermic printing opacity of the thermal scattering layer 32, which becomes, turns to reversible process, is reduced in the temperature of phase-change heat-storage material 311
Afterwards, thermal scattering layer 32 recovers the pellucidity before printing opacity change, and solar radiation can reach very through thermal scattering layer 32
Blank pipe 31.
The radiator 4 is metal, plastics or the ceramic material that thermal conductivity is more than 20W/m.K.
The surface of heat conductive rod 41 uniformly coats the pitch-dark layer that thermal conductivity is more than 1W/m.K, with absorptive thermal radiation.
The printing opacity change threshold temperature of the thermal scattering layer 32 is more than 60 DEG C.
The adiabatic covering 34 is by between the vacuum tube 31, heat conductive rod 41 and heat conductive rod 41 and thermal scattering layer 32
The cladding of gap 33 is got up.
The thermal scattering layer 32 is polymer blending material, liquid crystal material or hydrogel material.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (10)
1. a kind of phase-change thermal storage solar water heater with overheating preventing structure, including water inlet pipe, outlet pipe, the phase-change thermal storage sun
Energy water heater body and radiator, phase-change thermal storage solar water heater body is interior to be provided with adiabatic covering and several vacuum arranged side by side
Pipe, phase-change heat-storage material be located in vacuum tube, radiator include insert phase-change thermal storage solar water heater it is intrinsic several
Heat conductive rod arranged side by side and the fin positioned at phase-change thermal storage solar water heater body exterior, several heat conductive rods are true with several
Blank pipe is alternately arranged, it is characterised in that several vacuum tubes arranged side by side have been respectively coated by thermal scattering layer, work as phase-change heat-storage material
Temperature be higher than thermal scattering layer printing opacity change threshold temperature when, thermal scattering layer is changed into scattering from printing opacity, prevent sunshine
It is radiated and reaches vacuum tube, and solar radiation is scattered into heat conductive rod surface, solar radiation is heat by heat conductive rod sorption enhanced
The fin that radiator is transferred to after amount is radiated, and so as to prevent the temperature of phase-change heat-storage material from raising, realizes and phase transformation is stored up
The overtemperature protection of heat solar water heater.
2. phase-change thermal storage solar water heater according to claim 1, it is characterised in that be additionally provided with described vacuum tube
Hollow tube, hollow tube include hollow tube water inlet end and hollow tube water side, and hollow tube water inlet end is connected with the water inlet pipe, hollow
Pipe water side is connected with the outlet pipe.
3. phase-change thermal storage solar water heater according to claim 1, it is characterised in that the heat conductive rod and the thermic
There is a gap between scattering layer.
4. phase-change thermal storage solar water heater according to claim 1, it is characterised in that the thermic of the thermal scattering layer
Printing opacity, which becomes, turns to reversible process, and after the temperature of phase-change heat-storage material reduces, thermal scattering layer recovers transparent before printing opacity changes
State, solar radiation can pass through thermal scattering layer and reach vacuum tube.
5. the phase-change thermal storage solar water heater according to claim 1 or 4, it is characterised in that the thermal scattering layer, temperature
Degree is transparence when being less than printing opacity change threshold temperature, and temperature is opalescence disperse state when being higher than printing opacity change threshold temperature.
6. phase-change thermal storage solar water heater according to claim 1, it is characterised in that the radiator is that thermal conductivity is big
In 20W/m.K metal, plastics or ceramic material.
7. phase-change thermal storage solar water heater according to claim 1, it is characterised in that the heat conductive rod surface uniformly applies
The pitch-dark layer that thermal conductivity is more than 1W/m.K is covered, with absorptive thermal radiation.
8. phase-change thermal storage solar water heater according to claim 1, it is characterised in that the printing opacity of the thermal scattering layer
Change threshold temperature is more than 60 DEG C.
9. the phase-change thermal storage solar water heater according to claim 1 or 3, it is characterised in that the adiabatic covering is by institute
State the gap cladding between vacuum tube, heat conductive rod and heat conductive rod and thermal scattering layer.
10. the phase-change thermal storage solar water heater according to claim 1 or 4, it is characterised in that the thermal scattering layer is
Polymer blending material, liquid crystal material or hydrogel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610337282.3A CN105953444B (en) | 2016-05-21 | 2016-05-21 | A kind of phase-change thermal storage solar water heater with overheating preventing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610337282.3A CN105953444B (en) | 2016-05-21 | 2016-05-21 | A kind of phase-change thermal storage solar water heater with overheating preventing structure |
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| Publication Number | Publication Date |
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| CN105953444A CN105953444A (en) | 2016-09-21 |
| CN105953444B true CN105953444B (en) | 2018-02-02 |
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| CN201610337282.3A Active CN105953444B (en) | 2016-05-21 | 2016-05-21 | A kind of phase-change thermal storage solar water heater with overheating preventing structure |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945363B (en) * | 2019-03-21 | 2021-01-12 | 齐鲁工业大学 | Radiation refrigeration system with temperature adaptability and regulation and control method |
| CN110260531B (en) * | 2019-06-15 | 2021-01-15 | 厦门市钛科创科技有限公司 | Phase-change heat storage solar water heater with self-adaptive heat dissipation structure |
| CN110260391B (en) * | 2019-06-25 | 2020-11-10 | 安阳九彩电器有限公司 | Multifunctional energy storage type electric heater |
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| CN2711635Y (en) * | 2004-04-16 | 2005-07-20 | 华南理工大学 | Water tank free solar energy water-heater |
| CN101042265A (en) * | 2007-04-29 | 2007-09-26 | 黄永生 | Water tank free vacuum thermal insulation solar energy water heater |
| CN101846408A (en) * | 2009-03-27 | 2010-09-29 | 上海锦立新能源科技有限公司 | Water-break overheat protector and solar phase-change heat accumulation water heater with same |
| CN101846399A (en) * | 2009-03-27 | 2010-09-29 | 上海锦立新能源科技有限公司 | Solar phase-change heat accumulation water heater with overheating protection device |
| CN202109672U (en) * | 2011-06-02 | 2012-01-11 | 北京天普太阳能工业有限公司 | Heat-accumulation type large glass vacuum pipe solar-energy water heater |
| CN105202778A (en) * | 2014-06-12 | 2015-12-30 | 佛山圣哥拉太阳能科技有限公司 | Novel solar flat plate collector |
-
2016
- 2016-05-21 CN CN201610337282.3A patent/CN105953444B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003510205A (en) * | 1999-09-29 | 2003-03-18 | サイグネット ワークス インコーポレイテッド | Thermosensitive laminate for controlling temperature of structure and method of use |
| CN2711635Y (en) * | 2004-04-16 | 2005-07-20 | 华南理工大学 | Water tank free solar energy water-heater |
| CN101042265A (en) * | 2007-04-29 | 2007-09-26 | 黄永生 | Water tank free vacuum thermal insulation solar energy water heater |
| CN101846408A (en) * | 2009-03-27 | 2010-09-29 | 上海锦立新能源科技有限公司 | Water-break overheat protector and solar phase-change heat accumulation water heater with same |
| CN101846399A (en) * | 2009-03-27 | 2010-09-29 | 上海锦立新能源科技有限公司 | Solar phase-change heat accumulation water heater with overheating protection device |
| CN202109672U (en) * | 2011-06-02 | 2012-01-11 | 北京天普太阳能工业有限公司 | Heat-accumulation type large glass vacuum pipe solar-energy water heater |
| CN105202778A (en) * | 2014-06-12 | 2015-12-30 | 佛山圣哥拉太阳能科技有限公司 | Novel solar flat plate collector |
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| CN105953444A (en) | 2016-09-21 |
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| CB03 | Change of inventor or designer information |
Inventor after: Pan Baochun Inventor after: Yao Qilin Inventor after: Zhang Yueming Inventor after: Liang Qianju Inventor after: Xu Shujuan Inventor after: Wang Xiaoyu Inventor after: Chen Lei Inventor before: Xiang Hongxian |
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Effective date of registration: 20170913 Address after: Changfeng Shuangfeng Economic Development Zone, Hefei City, Anhui province 231100 Applicant after: Hefei Royalstar Solar Energy Science & Technology Co., Ltd. Address before: The middle Tianfu Avenue in Chengdu city Sichuan province 610041 No. 1388 1 8 storey building No. 866 Applicant before: CHENGDU YUYA SCIENCE & TECHNOLOGY CO., LTD. |
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Address after: Shuangfeng Industrial Zone of Hefei City, Anhui province 231100 Applicant after: Hefei Royalstar Solar Energy Science & Technology Co., Ltd. Address before: Changfeng Shuangfeng Economic Development Zone, Hefei City, Anhui province 231100 Applicant before: Hefei Royalstar Solar Energy Science & Technology Co., Ltd. |
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