WO2014206028A1 - Phase-change thermal storage solar water heater with overheat protection device - Google Patents
Phase-change thermal storage solar water heater with overheat protection device Download PDFInfo
- Publication number
- WO2014206028A1 WO2014206028A1 PCT/CN2013/089441 CN2013089441W WO2014206028A1 WO 2014206028 A1 WO2014206028 A1 WO 2014206028A1 CN 2013089441 W CN2013089441 W CN 2013089441W WO 2014206028 A1 WO2014206028 A1 WO 2014206028A1
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- WIPO (PCT)
- Prior art keywords
- water heater
- solar water
- phase change
- evaporation
- protection device
- Prior art date
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 238000001704 evaporation Methods 0.000 claims abstract description 60
- 230000008020 evaporation Effects 0.000 claims abstract description 55
- 230000005494 condensation Effects 0.000 claims abstract description 22
- 238000009833 condensation Methods 0.000 claims abstract description 22
- 238000005338 heat storage Methods 0.000 claims description 36
- 238000013021 overheating Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 4
- 230000002528 anti-freeze Effects 0.000 claims description 3
- 238000009835 boiling Methods 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 125000003158 alcohol group Chemical group 0.000 claims description 2
- 239000011232 storage material Substances 0.000 description 6
- 239000003245 coal Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000012782 phase change material Substances 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000002135 phase contrast microscopy Methods 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
- F24S40/50—Preventing overheating or overpressure
- F24S40/55—Arrangements for cooling, e.g. by using external heat dissipating means or internal cooling circuits
-
- 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
- F24S10/90—Solar heat collectors using working fluids using internal thermosiphonic circulation
- F24S10/95—Solar heat collectors using working fluids using internal thermosiphonic circulation having evaporator sections and condenser sections, e.g. heat pipes
-
- 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
- F24S60/10—Arrangements for storing heat collected by solar heat collectors using latent heat
-
- 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
Definitions
- the invention relates to a phase change heat storage solar water heater with a thermal protection device, belonging to the field of solar thermal technology.
- China is one of the most solar-rich countries in the world.
- the total amount of solar radiation in China is more than 5.02 million kJ, and the area with 2,250 hours of sunshine per year accounts for more than 2/3 of China's land area, especially in the western region.
- the sunshine time is over 3,000 hours.
- China's use of solar energy has achieved remarkable results.
- the solar water heater industry is developing rapidly, and it is becoming an emerging industry.
- the domestic solar water heaters mainly include: smouldering solar water heaters, flat solar water heaters, Glass vacuum tube solar water heater and heat pipe glass vacuum tube solar water heater, etc.
- low-end solar collectors using plastic-water pipes.
- Phase change energy storage and technology can store energy in the form of phase change latent heat in phase change materials.
- phase Change Materials PCMs
- PCMs Phase Change Materials
- phase change energy storage technology Compared with sensible heat storage technology, phase change energy storage technology has the advantages of high energy storage density, compact size, constant temperature control, remarkable energy saving effect, wide selection range of phase change temperature, easy control, etc., in aerospace, solar energy utilization, There are broad prospects in many areas such as picking and air conditioning, power supply system optimization, medical engineering, military engineering, thermal storage buildings and extreme environmental clothing.
- T/P valve temperature-limiting drainage or sunshade The existing anti-overheating measures for phase change heat storage solar water heaters generally use T/P valve temperature-limiting drainage or sunshade to prevent overheating.
- T/P valve temperature and waterproof need to ensure that the phase change heat storage solar water heater and tap water are unblocked.
- the house has not been delivered or is unoccupied for a long time, there is a danger of overheating due to the failure of the tap water, and the hot water is discharged when the overheat protection starts.
- With automatic sunshade the system is complex, the investment is large, the failure rate is high, and the power is also consumed.
- the object of the present invention is to provide a phase change heat storage solar water heater with a thermal protection device.
- the technical solution adopted by the present invention is: a phase change heat storage solar water heater with a thermal protection device, comprising a phase change heat storage solar water heater and an overheat protection device carrying an evaporation medium therein;
- the protection device includes an evaporation tube that evaporates the evaporation medium into a vapor body and a condensation tube that condenses the vapor body into an evaporation medium, and an outlet end of the evaporation tube communicates with an inlet end of the condensation tube, the condensation tube The outlet end is in communication with the inlet end of the evaporation tube; the evaporation tube is wholly or partially embedded in the phase change heat storage solar water heater.
- the evaporation tube is in heat transfer contact with the heat exchange tube in the phase change heat storage solar water heater.
- the outlet end of the condensing duct communicates with the inlet end of the evaporation tube through a pipeline.
- an air tank is connected to the pipeline or the condensation pipe.
- the evaporation medium is a material having a boiling point of less than or equal to 150 °C.
- the evaporation medium is alcohol, water or antifreeze.
- the invention adopts an evaporation tube and a condensing tube to form a loop, and internally injects an evaporation medium, and automatically circulates in the case of a water source and a power source to ensure the water heater.
- the internal temperature is not too high.
- the overheat protection device does not depend on tap water and power supply, saves water and electricity, and has a simple structure and reliable performance.
- Figure 1 is a schematic view of the present invention.
- phase change heat storage solar water heater 2, evaporation tube; 3, air tank; 4, condensation tube; 5, pipeline.
- Embodiment A phase change heat storage solar water heater with overheat protection device
- a phase change heat storage solar water heater with a thermal protection device includes a phase change heat storage solar water heater 1 and an overheat protection device internally carrying an evaporation medium;
- An evaporation tube 2 which evaporates into a vapor body and a condensation tube 4 which condenses the vapor body into an evaporation medium, and an outlet end of the evaporation tube 2 communicates with an inlet end of the condensation tube 4, the condensation tube 4 The outlet end is in communication with the inlet end of the evaporation tube 2; the evaporation tube 2 is wholly or partially embedded in the phase change heat storage solar water heater 1.
- the evaporation tube is in heat transfer contact with the heat exchange tube in the phase change heat storage solar water heater.
- the outlet end of the condensing duct 4 communicates with the inlet end of the evaporator tube 2 through a line 5.
- An air tank 3 is connected to the pipe or the condensing pipe.
- the evaporation medium is a material having a boiling point of less than or equal to 150 °C.
- the evaporation medium may specifically be selected from alcohol, water or antifreeze. In this embodiment, alcohol is specifically selected.
- the characteristics of the phase change heat storage solar water heater 1 are: When the user does not use, there is no water flow inside the phase change heat storage solar water heater 1, and the solar radiation energy is converted into heat energy and stored in the phase change heat storage material. When the user uses, the water flows through the phase change heat storage solar water heater 1, and the water flow and the phase change heat storage material exchange heat, and the heat brings out the phase change heat storage solar water heater 1 along with the water flow. If the radiation is strong and the user is not using the phase change heat storage solar water heater 1, the energy accumulation of the phase change heat storage material will increase the temperature of the phase change heat storage material, which may damage the phase change due to overheating.
- the invention designs a circuit composed of the evaporation tube 2 and the condensation tube 4.
- the temperature of the phase change heat storage material in the solar water heater 1 with the phase change heat storage is When the temperature rises, the temperature of the evaporation medium in the evaporation tube 2 also rises until the evaporation medium becomes steam, and then the steam enters the condensation tube 24, and the condensation tube is disposed outside the phase change heat storage solar water heater 1 and condenses
- the structure of the tube 4 is such that the tubular member peripherally has a plurality of fins, so that the vapor condenses in the condenser tube 4 to become an evaporation medium in a liquid state.
- the air tank 3 is provided on the condensing pipe 4 in order to cause an impact on the circuit formed by the evaporation pipe 2 and the condensing pipe 4 when the amount of steam formed by evaporation of the evaporation medium is excessive when the radiation is strong, since the air tank 3 is set up.
- the pipe 5 is convenient for the connection of the evaporation pipe 2 and the condensing pipe 4, and a pipe may be added at the outlet end of the evaporation pipe and the inlet end of the condensing pipe 4.
- the invention adopts an evaporation tube, a condensation tube, an air tank and a connecting pipeline to form a self-circulating system.
- the evaporation tube is in close contact with the heat exchange tube inside the water heater, and the medium can be evaporated.
- the evaporation medium evaporates into a vapor to remove the heat, and the heat is condensed into a liquid at the condensation tube and then returned to the evaporation.
- the tube prevents the internal temperature of the collector from being too high by self-circulation.
Abstract
A phase-change thermal storage solar water heater with an overheat protection device comprises a phase-change thermal storage solar water heater (1) and an overheat protection device with a built-in evaporating medium. The overheat protection device comprises an evaporation pipe (2) for evaporating the evaporating medium into gas and a condensation pipe (4) for condensing the gas into the evaporating medium, an outlet of the evaporation pipe (2) being communicated with an inlet of the condensation pipe (4), and an outlet pf the condensation pipe (4) being communicated with an inlet of the evaporation pipe (2). The evaporation pipe (2) is entirely or partially embedded in the phase-change thermal storage solar water heater (1). The evaporation pipe (2) and the condensation pipe (4) form a loop, the evaporating medium is filled in the loop, and the circulation can occur automatically in the loop without water supply and power supply, thereby preventing the inner temperature of the phase-change thermal storage solar water heater (1) from being excessively high.
Description
一种带过热保护装置的相变储热太阳能热水器 Phase change heat storage solar water heater with overheat protection device
技术领域 Technical field
本发明涉及一种带过热保护装置的相变储热太阳能热水器， 属于太阳能 光热技术领域。 The invention relates to a phase change heat storage solar water heater with a thermal protection device, belonging to the field of solar thermal technology.
背景技术 Background technique
随着中国经济快速发展， 人民生活水平不断提高， 对能源的需求亦随之 递增。 目前能源消耗主要为煤、 石油和天然气等化石燃料。 由于我国石油储 量有限，目前将近 50 %的原油依靠进口，煤依然是我国主要的燃料动力来源， 燃煤引起的环境问题已成为我国可持续发展战略中必须认真对待的问题。 太 阳能是一种巨大的对环境无污染的能源， 地球每秒获得的太阳能量相当于燃 烧 500万吨优质煤发出的能量。 With the rapid development of China's economy and the continuous improvement of people's living standards, the demand for energy has also increased. The current energy consumption is mainly fossil fuels such as coal, oil and natural gas. Due to China's limited oil reserves, nearly 50% of crude oil is currently imported. Coal is still the main source of fuel for China. The environmental problems caused by coal burning have become a serious issue in China's sustainable development strategy. Solar energy is a huge energy-free environment. The amount of solar energy per second is equivalent to the energy emitted by burning 5 million tons of high-quality coal.
我国是世界上太阳能最丰富的国家之一， 我国太阳能辐照总量大于 502 万千焦平方米， 年日照时数 2200小时的地区约占我国国土面积 2/3 以上， 特别是西部地区， 年日照时间达 3000 小时以上。 我国利用太阳能取得了举 世瞩目的成绩，其中太阳能热水器行业发展尤为迅速，正成为一个新兴产业。 China is one of the most solar-rich countries in the world. The total amount of solar radiation in China is more than 5.02 million kJ, and the area with 2,250 hours of sunshine per year accounts for more than 2/3 of China's land area, especially in the western region. The sunshine time is over 3,000 hours. China's use of solar energy has achieved remarkable results. The solar water heater industry is developing rapidly, and it is becoming an emerging industry.
近几年来， 太阳能热水器以每年递增 20 %至 30 %的速度增长。 我国太 阳能产业起步较晚， 尚处于发展初期， 与国外同行差距较大， 目前太阳能的 应用主要集中在低品质太阳能利用方面， 国内使用的太阳能热水器主要有： 闷晒式太阳热水器、 平板太阳热水器、 玻璃真空管太阳能热水器和热管玻璃 真空管太阳能热水器等。 近年来也有采用塑料-水管的低端太阳能集热器的。 这些低端的、 以真空玻璃板 /管直接走水的太阳能热水器， 其缺点是保温性 能差， 接口多易漏水， 抵抗低 温能力差， 易碎易爆裂， 体积大， 重量重，
热效率较低。 In recent years, solar water heaters have grown at an annual rate of 20% to 30%. China's solar energy industry started late, still in the early stage of development, and has a large gap with foreign counterparts. At present, the application of solar energy is mainly concentrated on the use of low-quality solar energy. The domestic solar water heaters mainly include: smouldering solar water heaters, flat solar water heaters, Glass vacuum tube solar water heater and heat pipe glass vacuum tube solar water heater, etc. In recent years, there have also been low-end solar collectors using plastic-water pipes. These low-end solar water heaters that use water glass plates/tubes to directly walk water have the disadvantages of poor thermal insulation performance, easy water leakage at the interface, poor resistance to low temperature, fragile and bursting, large volume and heavy weight. Thermal efficiency is low.
相变储能及技术能将能量以相变潜热的形式储藏于相变材料 Phase change energy storage and technology can store energy in the form of phase change latent heat in phase change materials.
(Phase Change Materials , PCMs ) 中， 实现能量在不同时空之间的转换。 利用相变材料的相变潜热实现能量的储存和利用， 有助于提高能源利用效率 和开发可再生能源， 是近年来能源科学和材料科学领域中一个十分活跃的前 沿研究方向。 与显热储能技术相比， 相变储能技术具有储能密度高、 体积小 巧、 温度控制恒定、 节能效果显著、 相变温度选择范围宽、 易于控制等 优 点， 在航空航天、 太阳能利用、 采暧和空调、 供电系统优化、 医学工程、 军 事工程、 蓄热建筑和极端环境服装等众多领域具有广阔的前景。 (Phase Change Materials, PCMs), the conversion of energy between different time and space. The use of phase change latent heat of phase change materials to achieve energy storage and utilization, which contributes to energy efficiency and the development of renewable energy, is a very active frontier research field in the fields of energy science and materials science in recent years. Compared with sensible heat storage technology, phase change energy storage technology has the advantages of high energy storage density, compact size, constant temperature control, remarkable energy saving effect, wide selection range of phase change temperature, easy control, etc., in aerospace, solar energy utilization, There are broad prospects in many areas such as picking and air conditioning, power supply system optimization, medical engineering, military engineering, thermal storage buildings and extreme environmental clothing.
现有相变储热太阳能热水器防过热的措施一般采用 T/P阀定温排水或者 遮阳帘的方式来防止过热。 T/P 阀定温防水需保证相变储热太阳能热水器与 自来水畅通， 在房屋尚未交付或长期无人居住时存在自来水不通造成过热的 危险， 且过热保护启动时需排放大量热水， 造成浪费。 采用自动遮阳帘的方 式， 系统复杂， 投资大， 故障率高， 也消耗电能。 The existing anti-overheating measures for phase change heat storage solar water heaters generally use T/P valve temperature-limiting drainage or sunshade to prevent overheating. T/P valve temperature and waterproof need to ensure that the phase change heat storage solar water heater and tap water are unblocked. When the house has not been delivered or is unoccupied for a long time, there is a danger of overheating due to the failure of the tap water, and the hot water is discharged when the overheat protection starts. With automatic sunshade, the system is complex, the investment is large, the failure rate is high, and the power is also consumed.
发明内容 Summary of the invention
本发明目的是提供一种带过热保护装置的相变储热太阳能热水器。 为达到上述目的， 本发明采用的技术方案是： 一种带过热保护装置的相 变储热太阳能热水器， 包括一相变储热太阳能热水器和一内部携带有蒸发介 质的过热保护装置； 所述过热保护装置包括将所述蒸发介质蒸发成为汽体的 蒸发管和将所述汽体冷凝成为蒸发介质的冷凝管， 所述蒸发管的出口端与所 述冷凝管的进口端连通， 所述冷凝管的出口端与所述蒸发管的进口端连通； 所述蒸发管全部或部分埋设在所述相变储热太阳能热水器内。
优选的技术方案： 所述蒸发管与所述相变储热太阳能热水器内的换热管 传热接触。 The object of the present invention is to provide a phase change heat storage solar water heater with a thermal protection device. In order to achieve the above object, the technical solution adopted by the present invention is: a phase change heat storage solar water heater with a thermal protection device, comprising a phase change heat storage solar water heater and an overheat protection device carrying an evaporation medium therein; The protection device includes an evaporation tube that evaporates the evaporation medium into a vapor body and a condensation tube that condenses the vapor body into an evaporation medium, and an outlet end of the evaporation tube communicates with an inlet end of the condensation tube, the condensation tube The outlet end is in communication with the inlet end of the evaporation tube; the evaporation tube is wholly or partially embedded in the phase change heat storage solar water heater. A preferred technical solution: the evaporation tube is in heat transfer contact with the heat exchange tube in the phase change heat storage solar water heater.
优选的技术方案： 所述冷凝管的出口端通过管路与所述蒸发管的进口端 连通。 A preferred technical solution: the outlet end of the condensing duct communicates with the inlet end of the evaporation tube through a pipeline.
优选的技术方案： 所述管路或者冷凝管上连通有空气罐。 A preferred technical solution: an air tank is connected to the pipeline or the condensation pipe.
优选的技术方案： 所述蒸发介质为沸点小于或等于 150°C的材料。 Preferred technical solution: The evaporation medium is a material having a boiling point of less than or equal to 150 °C.
优选的技术方案： 所述蒸发介质为酒精、 水或防冻液。 Preferred technical solution: The evaporation medium is alcohol, water or antifreeze.
由于上述技术方案运用， 本发明与现有技术相比具有下列优点和效果： 本发明采用蒸发管和冷凝管组成回路， 内部灌注蒸发介质， 在无水源和 电源的情况下， 自动循环， 保证热水器内部温度不会过高。 过热保护装置起 作用不依赖自来水和电源， 可节约水源和电力， 结构简单， 性能可靠。 附图说明 Due to the application of the above technical solutions, the present invention has the following advantages and effects compared with the prior art: The invention adopts an evaporation tube and a condensing tube to form a loop, and internally injects an evaporation medium, and automatically circulates in the case of a water source and a power source to ensure the water heater. The internal temperature is not too high. The overheat protection device does not depend on tap water and power supply, saves water and electricity, and has a simple structure and reliable performance. DRAWINGS
附图 1为本发明示意图。 Figure 1 is a schematic view of the present invention.
以上附图中， 1、 相变储热太阳能热水器； 2、 蒸发管； 3、 空气罐； 4、 冷凝管； 5、 管路。 In the above figures, 1, phase change heat storage solar water heater; 2, evaporation tube; 3, air tank; 4, condensation tube; 5, pipeline.
具体实施方式 detailed description
下面结合附图及实施例对本发明作进一步描述： The present invention is further described below in conjunction with the accompanying drawings and embodiments:
须知， 本说明书所附图式所绘示的结构、 比例、 大小等， 均仅用以配合 说明书所揭示的内容， 以供熟悉此技术的人士了解与阅读， 并非用以限定本 发明可实施的限定条件， 故不具技术上的实质意义， 任何结构的修饰、 比例 关系的改变或大小的调整， 在不影响本发明所能产生的功效及所能达成的目 的下， 均应仍落在本发明所揭示的技术内容得能涵盖的范围内。 同时， 本说
明书中所引用的如 "上" 、 "下" 、 "左" 、 "右" 、 "中间"及 "一"等 的用语， 亦仅为便于叙述的明了， 而非用以限定本发明可实施的范围， 其相 对关系的改变或调整， 在无实质变更技术内容下， 当亦视为本发明可实施的 范畴。 It is to be understood that the structures, the proportions, the dimensions, and the like of the drawings are only used to facilitate the understanding and reading of those skilled in the art, and are not intended to limit the practice of the present invention. The conditions are limited, so it is not technically meaningful. Any modification of the structure, change of the proportional relationship or adjustment of the size should remain in the present invention without affecting the effects and the achievable objectives of the present invention. The disclosed technical content is within the scope of the disclosure. At the same time, this is said Terms such as "upper", "lower", "left", "right", "intermediate" and "one" as quoted in the text are also for convenience of description, and are not intended to limit the invention. The scope of the implementation, the change or adjustment of the relative relationship, is also considered to be within the scope of the invention.
实施例： 一种带过热保护装置的相变储热太阳能热水器 Embodiment: A phase change heat storage solar water heater with overheat protection device
参见附图 1所示， 一种带过热保护装置的相变储热太阳能热水器， 包括 一相变储热太阳能热水器 1和一内部携带有蒸发介质的过热保护装置； 所述 过热保护装置包括将所述蒸发介质蒸发成为汽体的蒸发管 2和将所述汽体冷 凝成为蒸发介质的冷凝管 4， 所述蒸发管 2的出口端与所述冷凝管 4的进口 端连通， 所述冷凝管 4的出口端与所述蒸发管 2的进口端连通； 所述蒸发管 2全部或部分埋设在所述相变储热太阳能热水器 1 内。 所述蒸发管与所述相 变储热太阳能热水器内的换热管传热接触。 所述冷凝管 4的出口端通过管路 5与所述蒸发管 2的进口端连通。 所述管路或者冷凝管上连通有空气罐 3。 所述蒸发介质为沸点小于或等于 150°C的材料。 所述蒸发介质具体可以选择 酒精、 水或防冻液。 在本实施例中具体选择酒精。 Referring to FIG. 1 , a phase change heat storage solar water heater with a thermal protection device includes a phase change heat storage solar water heater 1 and an overheat protection device internally carrying an evaporation medium; An evaporation tube 2 which evaporates into a vapor body and a condensation tube 4 which condenses the vapor body into an evaporation medium, and an outlet end of the evaporation tube 2 communicates with an inlet end of the condensation tube 4, the condensation tube 4 The outlet end is in communication with the inlet end of the evaporation tube 2; the evaporation tube 2 is wholly or partially embedded in the phase change heat storage solar water heater 1. The evaporation tube is in heat transfer contact with the heat exchange tube in the phase change heat storage solar water heater. The outlet end of the condensing duct 4 communicates with the inlet end of the evaporator tube 2 through a line 5. An air tank 3 is connected to the pipe or the condensing pipe. The evaporation medium is a material having a boiling point of less than or equal to 150 °C. The evaporation medium may specifically be selected from alcohol, water or antifreeze. In this embodiment, alcohol is specifically selected.
相变储热太阳能热水器 1的特点是： 当用户不使用时， 相变储热太阳能 热水器 1的内部没有水流通过， 太阳辐射能转变为热能储存在相变储热材料 内。 当用户使用时， 水流流过相变储热太阳能热水器 1， 水流和相变储热材 料进行热交换， 热量随着水流带出相变储热太阳能热水器 1。如果辐射很强， 且用户不在使用相变储热太阳能热水器 1时，相变储热材料的能量蓄积过多， 会使得相变储热材料的温度升高， 从而会因过热而损坏相变储热太阳能热水 器 1。
本发明设计了由蒸发管 2和冷凝管 4构成的回路， 由于蒸发管 2埋设在 相变储热太阳能热水器 1内， 则随着相变储热太阳能热水器 1内的相变储热 材料温度的升高， 蒸发管 2内的蒸发介质的温度也会随之升高， 直至蒸发介 质成为蒸汽， 然后该蒸汽进入冷凝管 24， 而冷凝管设在相变储热太阳能热水 器 1之外， 且冷凝管 4的结构为管状构件外设多个散热片， 因此蒸汽在冷凝 管 4冷凝成为液体状态的蒸发介质。 因此相变储热材料内的过多的热量会因 蒸发介质的相变而带出相变储热太阳能热水器 1之外。 在冷凝管 4上设空气 罐 3是为了在辐射很强时， 由于蒸发介质蒸发形成的蒸汽的量过大， 而对蒸 发管 2和冷凝管 4构成的回路造成冲击， 由于设立了空气罐 3， 当蒸汽量大 时， 由于气体可以压缩， 因此过多的空气会进入空气罐 3内形成压缩空气， 由此形成了缓冲。 管路 5是为了蒸发管 2和冷凝管 4的连接方便， 也可以在 蒸发管的出口端和冷凝管 4的进口端加设一段管路。 The characteristics of the phase change heat storage solar water heater 1 are: When the user does not use, there is no water flow inside the phase change heat storage solar water heater 1, and the solar radiation energy is converted into heat energy and stored in the phase change heat storage material. When the user uses, the water flows through the phase change heat storage solar water heater 1, and the water flow and the phase change heat storage material exchange heat, and the heat brings out the phase change heat storage solar water heater 1 along with the water flow. If the radiation is strong and the user is not using the phase change heat storage solar water heater 1, the energy accumulation of the phase change heat storage material will increase the temperature of the phase change heat storage material, which may damage the phase change due to overheating. Thermal solar water heater 1. The invention designs a circuit composed of the evaporation tube 2 and the condensation tube 4. Since the evaporation tube 2 is buried in the phase change heat storage solar water heater 1, the temperature of the phase change heat storage material in the solar water heater 1 with the phase change heat storage is When the temperature rises, the temperature of the evaporation medium in the evaporation tube 2 also rises until the evaporation medium becomes steam, and then the steam enters the condensation tube 24, and the condensation tube is disposed outside the phase change heat storage solar water heater 1 and condenses The structure of the tube 4 is such that the tubular member peripherally has a plurality of fins, so that the vapor condenses in the condenser tube 4 to become an evaporation medium in a liquid state. Therefore, excessive heat in the phase change heat storage material is brought out of the phase change heat storage solar water heater 1 due to the phase change of the evaporation medium. The air tank 3 is provided on the condensing pipe 4 in order to cause an impact on the circuit formed by the evaporation pipe 2 and the condensing pipe 4 when the amount of steam formed by evaporation of the evaporation medium is excessive when the radiation is strong, since the air tank 3 is set up. When the amount of steam is large, since the gas can be compressed, excess air enters the air tank 3 to form compressed air, thereby forming a buffer. The pipe 5 is convenient for the connection of the evaporation pipe 2 and the condensing pipe 4, and a pipe may be added at the outlet end of the evaporation pipe and the inlet end of the condensing pipe 4.
本发明采用蒸发管、 冷凝管、 空气罐和连接管路组成自循环系统。 蒸发 管与热水器内部的换热管紧密接触， 内灌注可蒸发的介质， 当热水器温度达 到某一值时， 蒸发介质蒸发成汽体带走热量， 到冷凝管处散热冷凝成液体后 回到蒸发管， 通过自循环的方式防止集热器内部温度过高。 The invention adopts an evaporation tube, a condensation tube, an air tank and a connecting pipeline to form a self-circulating system. The evaporation tube is in close contact with the heat exchange tube inside the water heater, and the medium can be evaporated. When the temperature of the water heater reaches a certain value, the evaporation medium evaporates into a vapor to remove the heat, and the heat is condensed into a liquid at the condensation tube and then returned to the evaporation. The tube prevents the internal temperature of the collector from being too high by self-circulation.
上述实施例只为说明本发明的技术构思及特点， 其目的在于让熟悉此项 技术的人士能够了解本发明的内容并据以实施， 并不能以此限制本发明的保 护范围。 凡根据本发明精神实质所作的等效变化或修饰， 都应涵盖在本发明 的保护范围之内。
The above embodiments are merely illustrative of the technical concept and the features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the present invention and to implement the present invention, and the scope of the present invention is not limited thereto. Equivalent variations or modifications made in accordance with the spirit of the invention are intended to be included within the scope of the invention.
Claims
1、 一种带过热保护装置的相变储热太阳能热水器， 其特征在于： 包括一 相变储热太阳能热水器和一内部携带有蒸发介质的过热保护装置；所述过热保 护装置包括将所述蒸发介质蒸发成为汽体的蒸发管和将所述汽体冷凝成为蒸 发介质的冷凝管，所述蒸发管的出口端与所述冷凝管的进口端连通，所述冷凝 管的出口端与所述蒸发管的进口端连通；所述蒸发管全部或部分埋设在所述相 变储热太阳能热水器内。 1. A phase change thermal storage solar water heater with an overheating protection device, characterized in that: it includes a phase change thermal storage solar water heater and an overheating protection device carrying an evaporation medium inside; the overheating protection device includes the evaporation medium. An evaporation tube that evaporates a medium into a vapor and a condensation tube that condenses the vapor into an evaporation medium. The outlet end of the evaporation tube is connected to the inlet end of the condensation tube. The outlet end of the condensation tube is connected to the evaporation medium. The inlet ends of the tubes are connected; the evaporation tube is entirely or partially buried in the phase change heat storage solar water heater.
2、 根据权利要求 1所述的带过热保护装置的相变储热太阳能热水器， 其 特征在于： 所述蒸发管与所述相变储热太阳能热水器内的换热管传热接触。 2. The phase change heat storage solar water heater with overheating protection device according to claim 1, characterized in that: the evaporation tube is in heat transfer contact with the heat exchange tube in the phase change heat storage solar water heater.
3、 根据权利要求 1所述的带过热保护装置的相变储热太阳能热水器， 其 特征在于： 所述冷凝管的出口端通过管路与所述蒸发管的进口端连通。 3. The phase change thermal storage solar water heater with overheating protection device according to claim 1, characterized in that: the outlet end of the condensation tube is connected to the inlet end of the evaporation tube through a pipeline.
4、 根据权利要求 1所述的带过热保护装置的相变储热太阳能热水器， 其 特征在于： 所述管路或者冷凝管上连通有空气罐。 4. The phase change heat storage solar water heater with overheating protection device according to claim 1, characterized in that: an air tank is connected to the pipeline or the condensation pipe.
5、 根据权利要求 1所述的带过热保护装置的相变储热太阳能热水器， 其 特征在于： 所述蒸发介质为沸点小于或等于 150°C的材料。 5. The phase change thermal storage solar water heater with overheating protection device according to claim 1, characterized in that: the evaporation medium is a material with a boiling point less than or equal to 150°C.
6、 根据权利要求 1所述的带过热保护装置的相变储热太阳能热水器， 其 特征在于： 所述蒸发介质为酒精、 水或防冻液。
6. The phase change heat storage solar water heater with overheating protection device according to claim 1, characterized in that: the evaporation medium is alcohol, water or antifreeze.
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| CN201310255815.X | 2013-06-25 | ||
| CN201310255815XA CN103307782A (en) | 2013-06-25 | 2013-06-25 | Phase-change heat-accumulation solar water heater provided with overheating protection device |
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| CN103307782A (en) * | 2013-06-25 | 2013-09-18 | 江苏启能新能源材料有限公司 | Phase-change heat-accumulation solar water heater provided with overheating protection device |
| CN105509341B (en) * | 2015-12-22 | 2017-09-12 | 苏州苏净安发空调有限公司 | A kind of panel solar heater and solar water heater |
| CN105758023B (en) * | 2016-05-21 | 2018-06-26 | 蓝立概 | The phase-change thermal storage solar water heater directly to radiate |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4270521A (en) * | 1979-08-15 | 1981-06-02 | Brekke Carroll Ellerd | Solar heating system |
| JPS58150752A (en) * | 1982-03-02 | 1983-09-07 | Hitachi Chem Co Ltd | Annular thermosiphon |
| 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 |
| WO2012110916A2 (en) * | 2011-02-15 | 2012-08-23 | Tigi Ltd. | Overheat protection mechanism for solar thermal collector |
| CN102937304A (en) * | 2012-11-28 | 2013-02-20 | 西南科技大学 | Heat-pipe heating system by utilizing solar energy |
| CN103307782A (en) * | 2013-06-25 | 2013-09-18 | 江苏启能新能源材料有限公司 | Phase-change heat-accumulation solar water heater provided with overheating protection device |
| CN203413847U (en) * | 2013-06-25 | 2014-01-29 | 江苏启能新能源材料有限公司 | Phase change heat storage solar water heater with overheat protection device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1533241A (en) * | 1975-01-20 | 1978-11-22 | Bennett C | Solar panels |
| JPS58156160A (en) * | 1982-03-12 | 1983-09-17 | Hitachi Chem Co Ltd | Dry burning preventive device for solar heat collector |
| CN202083131U (en) * | 2011-04-27 | 2011-12-21 | 毛爱英 | Solar flat-plate collector with buffer inside |
| CN202648208U (en) * | 2012-02-20 | 2013-01-02 | 江苏启能新能源材料有限公司 | Heat exchange device provided with safety protection |
| CN102840700A (en) * | 2012-08-23 | 2012-12-26 | 江苏启能新能源材料有限公司 | Idle sunning overheat protection device of solar heat collector |
-
2013
- 2013-06-25 CN CN201310255815XA patent/CN103307782A/en active Pending
- 2013-12-13 WO PCT/CN2013/089441 patent/WO2014206028A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4270521A (en) * | 1979-08-15 | 1981-06-02 | Brekke Carroll Ellerd | Solar heating system |
| JPS58150752A (en) * | 1982-03-02 | 1983-09-07 | Hitachi Chem Co Ltd | Annular thermosiphon |
| 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 |
| WO2012110916A2 (en) * | 2011-02-15 | 2012-08-23 | Tigi Ltd. | Overheat protection mechanism for solar thermal collector |
| CN102937304A (en) * | 2012-11-28 | 2013-02-20 | 西南科技大学 | Heat-pipe heating system by utilizing solar energy |
| CN103307782A (en) * | 2013-06-25 | 2013-09-18 | 江苏启能新能源材料有限公司 | Phase-change heat-accumulation solar water heater provided with overheating protection device |
| CN203413847U (en) * | 2013-06-25 | 2014-01-29 | 江苏启能新能源材料有限公司 | Phase change heat storage solar water heater with overheat protection device |
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