CN105953444A - Phase change heat storage solar water heater with anti-overheating structure - Google Patents
Phase change heat storage solar water heater with anti-overheating structure Download PDFInfo
- Publication number
- CN105953444A CN105953444A CN201610337282.3A CN201610337282A CN105953444A CN 105953444 A CN105953444 A CN 105953444A CN 201610337282 A CN201610337282 A CN 201610337282A CN 105953444 A CN105953444 A CN 105953444A
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- Prior art keywords
- phase
- water heater
- change
- 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
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- 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
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- 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
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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
- Y02E10/44—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 phase change heat storage solar water heater with an anti-overheating structure. The phase change heat storage solar water heater comprises a water inflow pipe, a water outflow pipe, a phase change heat storage solar water heater body and a radiator. Heat insulation cladding and multiple parallel vacuum tubes are arranged in the phase change heat storage solar water heater body. Phase change heat storage materials are located in the vacuum tubes. The radiator comprises heat conduction rods and cooling fins. The phase change heat storage solar water heater is characterized in that the parallel vacuum tubes are covered with thermotropic scattering layers; and when the temperature of the phase change heat storage materials is higher than the light-transmitting change threshold temperature of the thermotropic scattering layers, light transmitting of the thermotropic scattering layers is changed into scattering, sunlight radiation is prevented from reaching the vacuum tubes, the sunlight radiation is scattered to the surfaces of the heat conduction rods, the sunlight radiation is absorbed by the heat conduction rods and converted into heat, and the heat is transferred to the cooling fins of the radiator for heat dissipation, so that temperature rise of the phase change heat storage materials is avoided, and overheating protection for the phase change heat storage solar water heater is achieved.
Description
Technical field
The present invention relates to technical field of solar water heaters, a kind of phase-change thermal storage solar water heater with overheating preventing structure.
Background technology
Solar thermal utilization is that in new and renewable sources of energy, commercialization degree is the highest, apply one of most common technology, and bringing huge energy conservation and environmental protection benefit, China is the country that family's quantity is many, potential market is maximum that solar water heater production is most, have solar water heater.
Phase-change thermal storage solar water heater is the solar water heater that a kind of volume is little, energy storage density is high.Being mainly characterized by of phase-change thermal storage, utilizes the latent heat of phase change of phase-change material to realize storage and the utilization of energy.When user does not uses, the inside of phase-change thermal storage solar water heater does not has current to pass through, and solar radiant energy is changed into thermal energy storage in phase-change heat-storage material.When user uses, current flow through phase-change thermal storage solar water heater, current and phase-change heat-storage material and carry out heat exchange, and heat takes phase-change thermal storage solar water heater out of along with current.But, if solar radiation is very strong, when user does not uses phase-change thermal storage solar water heater, the energy accumulation of phase-change heat-storage material is too much, and the temperature that can make phase-change heat-storage material is the highest, can damage phase-change thermal storage solar water heater because of overheated.Therefore, use rational radiating mode that phase-change heat-storage material is carried out overtemperature protection, be the subject matter that faces of phase-change thermal storage solar water heater.
Chinese patent CN 103557599A proposes a kind of at solar water heater installation shade fabrics; by remotely controlling motor; the position of mobile shade fabrics; change thermal-collecting tube of solar water heater and receive the area of sunlight; realize solar water heater is shined upon the regulation of area, reach overtemperature protection purpose.Its shortcoming is, regulation action is based on the power shined upon, rather than the actual temperature height within water heater, the actual temperature height within water heater accurately cannot be inferred based on the power shined upon, and therefore cannot play real protection to water heater is overheated.Chinese patent CN 204268733U proposes to utilize temperature sensor and liquid level sensor to gather the temperature in attemperater and water level, then by the work of Single-chip Controlling rolling motor, make window-blind in window-blind track on move, realize solar water heater is shined upon the regulation of area, it is therefore prevented that solar energy heat collection pipe temperature is too high.It is disadvantageously, regulation action is based on the water temperature in water tank and water level, and the non-immediate temperature and pressure to phase-change heat-storage material, not yet pays or the most unoccupied in house, when tap water is obstructed, it is impossible to play the effect of overtemperature protection；And system complex, cost is the highest.
Summary of the invention
In view of this, the invention provides a kind of phase-change thermal storage solar water heater with overheating preventing structure, in order to solve the problem being difficult to effectively provide overtemperature protection in prior art, its technical scheme is as follows:
nullA 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，Phase-change thermal storage solar water heater is the most internal is provided with adiabatic covering and several vacuum tubes arranged side by side，Phase-change heat-storage material is positioned at vacuum tube，Radiator comprises the fin inserting phase-change thermal storage solar water heater several heat conductive rods arranged side by side intrinsic with being positioned at phase-change thermal storage solar water heater body exterior，Several heat conductive rods are alternately arranged with several vacuum tubes，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 become scattering from printing opacity，Solar radiation is stoped to arrive vacuum tube，And solar radiation is scattered to heat conductive rod surface，Solar radiation is that the fin being transferred to radiator after heat dispels the heat by heat conductive rod sorption enhanced，Thus stop the temperature of phase-change heat-storage material to raise，Realize the overtemperature protection to phase-change thermal storage solar water heater.
Being additionally provided with hollow pipe in described vacuum tube, hollow pipe includes hollow pipe water inlet end and hollow pipe water side, and hollow pipe water inlet end is connected with described water inlet pipe, and hollow pipe water side is connected with described outlet pipe.
Between described heat conductive rod and described thermal scattering layer, there is a gap.
The thermic printing opacity of described thermal scattering layer is changed to reversible process, and after the temperature of phase-change heat-storage material reduces, thermal scattering layer recovers the pellucidity before printing opacity change, and solar radiation can arrive vacuum tube through thermal scattering layer.
Described thermal scattering layer, is transparence when temperature is less than printing opacity change threshold temperature, is opalescence disperse state when temperature is higher than printing opacity change threshold temperature.
As further preferably, described radiator is more than the metal of 20W/m.K, plastics or ceramic material by thermal conductivity.
As further preferably, described heat conductive rod surface uniformly coats the thermal conductivity pitch-dark layer more than 1W/m.K, with absorptive thermal radiation.
As further preferably, the printing opacity change threshold temperature of described thermal scattering layer is more than 60 DEG C.
As further preferably, the gap between described vacuum tube, heat conductive rod and heat conductive rod and thermal scattering layer is coated with by described adiabatic covering.
As further preferably, described thermal scattering layer is polymer blending material, liquid crystal material or hydrogel material.
Technique scheme has the advantages that
The present invention is compared with the existing technology, radiator is used to dispel the heat, radiator includes that several insert the intrinsic heat conductive rod of phase-change thermal storage solar water heater side by side and are positioned at phase-change thermal storage solar water heater body exterior fin, heat conductive rod is alternately arranged with vacuum tube, vacuum tube outside cladding 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 become scattering from printing opacity, solar radiation is stoped to arrive vacuum tube, and solar radiation is scattered to heat conductive rod surface, solar radiation is that the fin being transferred to radiator after heat dispels the heat by heat conductive rod sorption enhanced, thus stop the temperature of phase-change heat-storage material to raise, realize the overtemperature protection to phase-change thermal storage solar water heater.The radiating mode of the present invention has low cost, advantage simple, reliable.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only embodiments of the invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided.
Fig. 1 is the cross sectional representation of the phase-change thermal storage solar water heater of the embodiment of the present invention；
Fig. 2 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: 1, water inlet pipe；2, outlet pipe；3, phase-change thermal storage solar water heater body；4, radiator；11, hollow pipe water inlet end；21, hollow pipe water side；31, vacuum tube；32, thermal scattering layer；33, gap；34, adiabatic covering；311, phase-change heat-storage material；41, heat conductive rod；42, fin.
Detailed description of the invention
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 clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
nullRefer to Fig. 1，A kind of phase-change thermal storage solar water heater with overheating preventing structure，Including water inlet pipe 1、Outlet pipe 2、Phase-change thermal storage solar water heater body 3 and radiator 4，It is provided with in phase-change thermal storage solar water heater body 3 and has been coated with thermal scattering layer 32 and several vacuum tubes arranged side by side 31 of adiabatic covering 34，Phase-change heat-storage material 311 is positioned at vacuum tube 31，Radiator 4 comprises several heat conductive rods arranged side by side 41 inserted in phase-change thermal storage solar water heater body 3 and is positioned at the fin 42 outside phase-change thermal storage solar water heater body 3，Several heat conductive rods 41 are alternately arranged with several vacuum tubes 31，When the temperature of phase-change heat-storage material 311 is higher than the printing opacity change threshold temperature of thermal scattering layer 32，Thermal scattering layer 32 is become scattering from printing opacity，Solar radiation is stoped to arrive vacuum tube 31，And solar radiation is scattered to heat conductive rod 41 surface，Solar radiation is that the fin 42 being transferred to radiator 4 after heat dispels the heat by heat conductive rod 41 sorption enhanced，Thus stop the temperature of phase-change heat-storage material 311 to raise，Realize the overtemperature protection to phase-change thermal storage solar water heater.
Being additionally provided with hollow pipe in described vacuum tube 31, hollow pipe includes hollow pipe water inlet end 11 and hollow pipe water side 21, and hollow pipe water inlet end 11 is connected with water inlet pipe 1, and hollow pipe water side 21 is connected with outlet pipe 2.
Refer to Fig. 1 and Fig. 2, there is between described heat conductive rod 41 and described thermal scattering layer 32 gap 33, described heat conductive rod 41 separates with described thermal scattering layer 32, there is no conduction of heat between the two, when the temperature of phase-change heat-storage material 311 is less than the printing opacity change threshold temperature of thermal scattering layer 32, the heat of described phase-change heat-storage material 311 will not occur the heat losses that conduction of heat causes.
Described thermal scattering layer 32, is transparence when temperature is less than printing opacity change threshold temperature, is opalescence disperse state when temperature is higher than printing opacity change threshold temperature.
The thermic printing opacity of described thermal scattering layer 32 is changed to reversible process, and after the temperature of phase-change heat-storage material 311 reduces, thermal scattering layer 32 recovers the pellucidity before printing opacity change, and solar radiation can arrive vacuum tube 31 through thermal scattering layer 32.
Described radiator 4 is more than the metal of 20W/m.K, plastics or ceramic material by thermal conductivity.
Described heat conductive rod 41 surface uniformly coats the thermal conductivity pitch-dark layer more than 1W/m.K, with absorptive thermal radiation.
The printing opacity change threshold temperature of described thermal scattering layer 32 is more than 60 DEG C.
Gap 33 between described vacuum tube 31, heat conductive rod 41 and heat conductive rod 41 and thermal scattering layer 32 is coated with by described adiabatic covering 34.
Described thermal scattering layer 32 is polymer blending material, liquid crystal material or hydrogel material.
The above; being only the detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, any those familiar with the art is in the technical scope that the invention discloses; change can be readily occurred in or replace, all should contain within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with scope of the claims.
Claims (10)
- null1. a 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，Phase-change thermal storage solar water heater is the most internal is provided with adiabatic covering and several vacuum tubes arranged side by side，Phase-change heat-storage material is positioned at vacuum tube，Radiator comprises the fin inserting phase-change thermal storage solar water heater several heat conductive rods arranged side by side intrinsic with being positioned at phase-change thermal storage solar water heater body exterior，Several heat conductive rods are alternately arranged with several vacuum tubes，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 become scattering from printing opacity，Solar radiation is stoped to arrive vacuum tube，And solar radiation is scattered to heat conductive rod surface，Solar radiation is that the fin being transferred to radiator after heat dispels the heat by heat conductive rod sorption enhanced，Thus stop the temperature of phase-change heat-storage material to raise，Realize the overtemperature protection to phase-change thermal storage solar water heater.
- Phase-change thermal storage solar water heater the most according to claim 1, it is characterized in that, be additionally provided with hollow pipe in described vacuum tube, hollow pipe includes hollow pipe water inlet end and hollow pipe water side, hollow pipe water inlet end is connected with described water inlet pipe, and hollow pipe water side is connected with described outlet pipe.
- Phase-change thermal storage solar water heater the most according to claim 1, it is characterised in that between described heat conductive rod and described thermal scattering layer, there is a gap.
- Phase-change thermal storage solar water heater the most according to claim 1, it is characterized in that, the thermic printing opacity of described thermal scattering layer is changed to reversible process, after the temperature of phase-change heat-storage material reduces, thermal scattering layer recovers the pellucidity before printing opacity change, and solar radiation can arrive vacuum tube through thermal scattering layer.
- 5. according to the phase-change thermal storage solar water heater described in claim 1 and 4, it is characterised in that described thermal scattering layer, it is transparence when temperature is less than printing opacity change threshold temperature, is opalescence disperse state when temperature is higher than printing opacity change threshold temperature.
- Phase-change thermal storage solar water heater the most according to claim 1, it is characterised in that described radiator is more than the metal of 20W/m.K, plastics or ceramic material by thermal conductivity.
- Phase-change thermal storage solar water heater the most according to claim 1, it is characterised in that described heat conductive rod surface uniformly coats the thermal conductivity pitch-dark layer more than 1W/m.K, with absorptive thermal radiation.
- Phase-change thermal storage solar water heater the most according to claim 1, it is characterised in that the printing opacity change threshold temperature of described thermal scattering layer is more than 60 DEG C.
- 9. according to the phase-change thermal storage solar water heater described in claim 1 and 3, it is characterised in that the gap between described vacuum tube, heat conductive rod and heat conductive rod and thermal scattering layer is coated with by described adiabatic covering.
- 10. according to the phase-change thermal storage solar water heater described in claim 1 and 4, it is characterised in that described 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 |
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| 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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| CN105953444A true CN105953444A (en) | 2016-09-21 |
| CN105953444B 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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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945363A (en) * | 2019-03-21 | 2019-06-28 | 齐鲁工业大学 | A kind of radiation refrigeration system and regulation method with temperature self-adaptation |
| CN110260391A (en) * | 2019-06-25 | 2019-09-20 | 安阳九彩电器有限公司 | A kind of multi-functional energy-storage type electric heater |
| CN110260531A (en) * | 2019-06-15 | 2019-09-20 | 厦门市钛科创科技有限公司 | Phase-change thermal storage solar water heater with adaptive radiator structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945363A (en) * | 2019-03-21 | 2019-06-28 | 齐鲁工业大学 | A kind of radiation refrigeration system and regulation method with temperature self-adaptation |
| 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 |
| CN110260531A (en) * | 2019-06-15 | 2019-09-20 | 厦门市钛科创科技有限公司 | Phase-change thermal storage solar water heater with adaptive radiator structure |
| CN110260391A (en) * | 2019-06-25 | 2019-09-20 | 安阳九彩电器有限公司 | A kind of multi-functional energy-storage type electric heater |
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| CN105953444B (en) | 2018-02-02 |
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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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