CN217685925U - Solar energy step heat accumulation system - Google Patents

Abstract

Translated fromChinese

本实用新型公开一种太阳能梯级蓄热系统，太阳能梯级蓄热系统包括蓄热装置、太阳能集热装置和驱动机构，所述蓄热装置包括依次串联的第一蓄热装置、第二蓄热装置和太阳能热泵，所述第一蓄热装置的最低蓄热温度、第二蓄热装置的最低蓄热温度和太阳能热泵的最低热量输入温度依次降低，所述太阳能集热装置的导热介质入口与太阳能热泵的导热介质出口连接，所述太阳能集热装置的导热介质出口与第一蓄热装置的导热介质入口连接，所述驱动机构用于驱动所述导热介质。本实用新型提供的太阳能梯级蓄热系统可实现热量梯级储存和利用，具有能量利用效率高的优点。

The utility model discloses a solar energy cascade heat storage system. The solar energy cascade heat storage system comprises a heat storage device, a solar energy heat collection device and a driving mechanism. The heat storage device comprises a first heat storage device and a second heat storage device connected in series in sequence. and the solar heat pump, the minimum heat storage temperature of the first heat storage device, the minimum heat storage temperature of the second heat storage device and the minimum heat input temperature of the solar heat pump decrease in turn, and the heat transfer medium inlet of the solar heat collector device is connected to the solar heat pump. The heat-conducting medium outlet of the heat pump is connected, the heat-conducting medium outlet of the solar heat collecting device is connected with the heat-conducting medium inlet of the first heat storage device, and the driving mechanism is used for driving the heat-conducting medium. The solar energy cascade heat storage system provided by the utility model can realize the cascade storage and utilization of heat, and has the advantages of high energy utilization efficiency.

Description

Translated fromChinese

太阳能梯级蓄热系统Solar cascade heat storage system

技术领域technical field

本实用新型涉及太阳能蓄热技术领域，尤其涉及太阳能梯级蓄热系统。The utility model relates to the technical field of solar heat storage, in particular to a solar cascade heat storage system.

背景技术Background technique

太阳能分布广，取之不尽，是一种理想的清洁绿色能源，采用太阳能进行供热可为“双碳”目标下的能源转化进程做出更大贡献。中国有很多适宜发展太阳能区域供热的地区，如西藏、东三省及北京市郊区等。受天气、气候影响，太阳能具有间歇性、不稳定性的缺点，因此太阳能供热技术需要配备蓄热系统来实现热量持续供应。目前应用较多的蓄热方式是采用水箱储存大量的热水，这种方式原理简单、方便实施，但是存在较多缺点：蓄热温度通常为几十摄氏度的低温级别，不能满足热负荷终端的多样化温度需求；需要电加热来维持水的热量，耗电量较大；蓄热周期较短，难以长时间储存热量，灵活性较差等。Solar energy is widely distributed and inexhaustible. It is an ideal clean and green energy source. The use of solar energy for heating can make a greater contribution to the energy conversion process under the "double carbon" goal. There are many areas in China that are suitable for the development of solar district heating, such as Tibet, the three northeastern provinces and the suburbs of Beijing. Affected by weather and climate, solar energy is intermittent and unstable. Therefore, solar heating technology needs to be equipped with a heat storage system to achieve continuous heat supply. At present, the most widely used heat storage method is to use water tanks to store a large amount of hot water. This method is simple in principle and convenient to implement, but it has many disadvantages: the heat storage temperature is usually at a low temperature level of tens of degrees Celsius, which cannot meet the requirements of the heat load terminal. Diversified temperature requirements; electric heating is required to maintain the heat of water, which consumes a lot of power; the heat storage cycle is short, it is difficult to store heat for a long time, and the flexibility is poor.

实用新型内容Utility model content

本实用新型是基于实用新型人对以下事实和问题的发现和认识做出的：The utility model is made based on the discovery and understanding of the utility model person to the following facts and problems:

本实用新型旨在至少在一定程度上解决相关技术中的技术问题之一。The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

为此，本实用新型的实施例提出一种太阳能梯级蓄热系统，该太阳能梯级蓄热系统具有实现热量梯级储存和利用，能量利用效率高的优点。For this reason, the embodiment of the utility model proposes a solar cascade thermal storage system, which has the advantages of realizing cascade storage and utilization of heat and high energy utilization efficiency.

根据本实用新型实施例的太阳能梯级蓄热系统，太阳能梯级蓄热系统包括蓄热装置、太阳能集热装置和驱动机构，所述蓄热装置包括依次串联的第一蓄热装置、第二蓄热装置和太阳能热泵，所述第一蓄热装置的最低蓄热温度、第二蓄热装置的最低蓄热温度和太阳能热泵的最低热量输入温度依次降低，所述太阳能集热装置的导热介质入口与太阳能热泵的导热介质出口连接，所述太阳能集热装置的导热介质出口与第一蓄热装置的导热介质入口连接，所述驱动机构用于驱动所述导热介质。According to the solar cascade heat storage system of the embodiment of the present utility model, the solar cascade heat storage system includes a heat storage device, a solar heat collection device and a driving mechanism, and the heat storage device includes a first heat storage device, a second heat storage device, and a second heat storage device connected in series in sequence. device and solar heat pump, the minimum heat storage temperature of the first heat storage device, the minimum heat storage temperature of the second heat storage device, and the minimum heat input temperature of the solar heat pump are sequentially reduced, and the heat transfer medium inlet of the solar heat collection device is connected with the The heat conduction medium outlet of the solar heat pump is connected, the heat conduction medium outlet of the solar heat collection device is connected with the heat conduction medium inlet of the first heat storage device, and the driving mechanism is used to drive the heat conduction medium.

根据本实用新型实施例的太阳能梯级蓄热系统实现热量梯级储存和利用具有能量利用效率高的优点。The cascaded solar heat storage system according to the embodiment of the utility model realizes heat cascade storage and utilization, and has the advantage of high energy utilization efficiency.

在一些实施例中，所述第一蓄热装置为热化学蓄热装置。In some embodiments, the first heat storage device is a thermochemical heat storage device.

在一些实施例中，所述热化学蓄热装置的蓄热温度为400～1000℃。In some embodiments, the heat storage temperature of the thermochemical heat storage device is 400-1000°C.

在一些实施例中，所述热化学蓄热装置的蓄热介质为金属碳酸盐、金属氢氧化物和金属氧化物中任意一种。In some embodiments, the heat storage medium of the thermochemical heat storage device is any one of metal carbonate, metal hydroxide and metal oxide.

在一些实施例中，所述第二蓄热装置为显热蓄热装置。In some embodiments, the second heat storage device is a sensible heat storage device.

在一些实施例中，所述显热蓄热装置的蓄热温度为40～400℃。In some embodiments, the heat storage temperature of the sensible heat storage device is 40-400°C.

在一些实施例中，所述显热蓄热装置的蓄热介质为水、沙子和陶瓷中的至少一种。In some embodiments, the heat storage medium of the sensible heat storage device is at least one of water, sand and ceramics.

在一些实施例中，所述太阳能热泵的热量输入温度为-10～40℃。In some embodiments, the heat input temperature of the solar heat pump is -10-40°C.

在一些实施例中，所述导热介质包括空气或二氧化碳。In some embodiments, the heat transfer medium includes air or carbon dioxide.

在一些实施例中，所述太阳能集热装置为平板型太阳能集热器、全玻璃真空管集热器、U型管式空管集热器、热管式真空管集热器和直流式真空管集热器中的至少一种。In some embodiments, the solar thermal collector is a flat-plate solar thermal collector, an all-glass vacuum tube collector, a U-tube empty tube collector, a heat pipe vacuum tube collector, and a straight-through vacuum tube collector at least one of the

附图说明Description of drawings

图1是根据本实用新型实施例中太阳能梯级蓄热系统的结构示意图。Fig. 1 is a schematic structural diagram of a solar cascade heat storage system according to an embodiment of the utility model.

附图标记：1、太阳能集热装置；2、第一蓄热装置；3、第二蓄热装置；4、太阳能热泵；5、热负荷。Reference signs: 1. Solar heat collection device; 2. First heat storage device; 3. Second heat storage device; 4. Solar heat pump; 5. Heat load.

具体实施方式Detailed ways

下面详细描述本实用新型的实施例，所述实施例的示例在附图中示出。下面通过参考附图描述的实施例是示例性的，旨在用于解释本实用新型，而不能理解为对本实用新型的限制。Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to be used to explain the present invention, but should not be construed as a limitation of the present invention.

根据本实用新型实施例的太阳能梯级蓄热系统，如图1所示，太阳能梯级蓄热系统包括蓄热装置和太阳能集热装置1，蓄热装置包括依次串联的第一蓄热装置2、第二蓄热装置3和太阳能热泵4，第一蓄热装置2的最低蓄热温度、第二蓄热装置3的最低蓄热温度和太阳能热泵4的最低热量输入温度依次降低，蓄热温度为热量输入温度。太阳能集热装置1的导热介质入口与太阳能热泵4的导热介质出口连接，太阳能集热装置1的导热介质出口与第一蓄热装置2的导热介质入口连接。太阳能集热装置1连接导热介质循环管路，第一蓄热装置2、第二蓄热装置3和太阳能热泵4均设置在导热介质循环管路上，第一蓄热装置2、第二蓄热装置3和太阳能热泵4分别与导热介质换热，驱动机构设置在导热介质循环管路上驱动导热介质流动，驱动机构可以是导热工质泵。第一蓄热装置2可以对高温热量进行蓄热，第二蓄热装置3可对中低温热量进行蓄热，太阳能热泵4可以对低温热量进行蓄热。第一蓄热装置2的最低蓄热温度可以是400℃，第二蓄热装置3的最低蓄热温度可以是40℃，太阳能热泵4的最低热量输入温度可以是-10℃。第一蓄热装置2、第二蓄热装置3和太阳能热泵4分别设置循环供热管路与热负荷5相连接并向热负荷5供热。According to the solar cascade heat storage system of the embodiment of the present invention, as shown in Figure 1, the solar cascade heat storage system includes a heat storage device and a solar heat collection device 1, and the heat storage device includes a firstheat storage device 2, a second heat storage device connected in series in sequence Twoheat storage devices 3 andsolar heat pump 4, the minimum heat storage temperature of the firstheat storage device 2, the minimum heat storage temperature of the secondheat storage device 3 and the minimum heat input temperature of thesolar heat pump 4 decrease successively, and the heat storage temperature is heat Enter the temperature. The heat transfer medium inlet of the solar heat collection device 1 is connected to the heat transfer medium outlet of thesolar heat pump 4 , and the heat transfer medium outlet of the solar heat collection device 1 is connected to the heat transfer medium inlet of the firstheat storage device 2 . The solar heat collection device 1 is connected to the heat transfer medium circulation pipeline, the firstheat storage device 2, the secondheat storage device 3 and thesolar heat pump 4 are all arranged on the heat transfer medium circulation pipeline, the firstheat storage device 2, the secondheat storage device 3 and thesolar heat pump 4 respectively exchange heat with the heat-conducting medium, and the driving mechanism is arranged on the heat-conducting medium circulation pipeline to drive the heat-conducting medium to flow, and the driving mechanism may be a heat-conducting working fluid pump. The firstheat storage device 2 can store high temperature heat, the secondheat storage device 3 can store medium and low temperature heat, and thesolar heat pump 4 can store low temperature heat. The minimum heat storage temperature of the firstheat storage device 2 can be 400°C, the minimum heat storage temperature of the secondheat storage device 3 can be 40°C, and the minimum heat input temperature of thesolar heat pump 4 can be -10°C. The firstheat storage device 2 , the secondheat storage device 3 and thesolar heat pump 4 are respectively provided with circulating heat supply pipelines connected to theheat load 5 and supplying heat to theheat load 5 .

根据本实用新型实施例的太阳能梯级蓄热系统具有实现热量梯级储存和利用，提高能量利用效率，满足用户不用温度区间的多样化需求的优点。The solar cascade heat storage system according to the embodiment of the utility model has the advantages of realizing cascade storage and utilization of heat, improving energy utilization efficiency, and meeting the diverse needs of users in different temperature ranges.

在一些实施例中，第一蓄热装置2为热化学蓄热装置。热化学蓄热装置储热密度大。In some embodiments, the firstheat storage device 2 is a thermochemical heat storage device. Thermochemical heat storage devices have high heat storage density.

由此，热化学蓄热装置能够实现蓄热系统跨季节长期存储蓄热周期长，蓄热周期为蓄热装置时蓄热装置对热量存储的时间，自外界热量输入起至热量输出结束。不同蓄热装置的蓄热周期不同，蓄热周期短的蓄热装置难以长时间储存热量。热化学蓄热通过可逆的热化学反应实现储热和放热，可以实现对热能品位的提升。Thus, the thermochemical heat storage device can realize long-term storage of the heat storage system across seasons and a long heat storage cycle. The heat storage cycle is the time for the heat storage device to store heat when the heat storage device is used, from the input of external heat to the end of heat output. The heat storage cycle of different heat storage devices is different, and it is difficult for a heat storage device with a short heat storage cycle to store heat for a long time. Thermochemical heat storage realizes heat storage and heat release through reversible thermochemical reactions, which can improve the grade of heat energy.

在一些实施例中，热化学蓄热装置的蓄热温度为400～1000℃。In some embodiments, the heat storage temperature of the thermochemical heat storage device is 400-1000°C.

由此，热化学蓄热装置的蓄热温度能够与太阳能集热器的导热介质温度相适应。Thus, the heat storage temperature of the thermochemical heat storage device can be adapted to the temperature of the heat transfer medium of the solar heat collector.

在一些实施例中，热化学蓄热装置的蓄热介质为金属碳酸盐、金属氢氧化物和金属氧化物中任意一种。In some embodiments, the heat storage medium of the thermochemical heat storage device is any one of metal carbonate, metal hydroxide and metal oxide.

具体地，蓄热介质可以采用金属碳酸盐如碳酸钙，金属氢氧化物可以是氢氧化钙，金属氧化物可以是锰基、铜基、钴基氧化物材料和钙钛矿等。Specifically, metal carbonate such as calcium carbonate can be used as the heat storage medium, calcium hydroxide can be the metal hydroxide, and manganese-based, copper-based, cobalt-based oxide materials and perovskite can be used as the metal oxide.

蓄热介质还可以采用金属氢化物、氨、甲烷等其他材料。The heat storage medium can also use other materials such as metal hydrides, ammonia, and methane.

在一些实施例中，第二蓄热装置3为显热蓄热装置。In some embodiments, the secondheat storage device 3 is a sensible heat storage device.

由此，显热蓄热装置储存中低温热能，显热蓄热成本低、装置结构简单、技术成熟能够降低蓄热系统成本。Therefore, the sensible heat storage device stores medium and low temperature heat energy, the cost of sensible heat storage is low, the device structure is simple, and the technology is mature, which can reduce the cost of the heat storage system.

在一些实施例中，显热蓄热装置的蓄热温度为40～400℃。In some embodiments, the heat storage temperature of the sensible heat storage device is 40-400°C.

由此，显热蓄热装置的蓄热温度能够吸收导热介质循环管路上中低温度的导热介质的热量，显热蓄热装置的最低热量输入温度与显热蓄热装置的蓄热介质相关。Thus, the heat storage temperature of the sensible heat storage device can absorb the heat of the medium and low temperature heat transfer medium on the heat transfer medium circulation pipeline, and the minimum heat input temperature of the sensible heat storage device is related to the heat storage medium of the sensible heat storage device.

在一些实施例中，显热蓄热装置的蓄热介质为水、沙子和陶瓷中的至少一种。In some embodiments, the heat storage medium of the sensible heat storage device is at least one of water, sand and ceramics.

由此，蓄热介质采用水、沙子等材料成本低廉，热容量高。陶瓷做为蓄热材料具有低热膨胀性，能够缩小显热蓄热装置体积。显热蓄热装置采用水、沙子、陶瓷中的一种或者几种的组合能够降低蓄热系统成本的同时保证蓄热效果。Therefore, the heat storage medium adopts materials such as water and sand with low cost and high heat capacity. As a heat storage material, ceramics have low thermal expansion, which can reduce the volume of sensible heat storage devices. The sensible heat storage device uses one or a combination of water, sand, and ceramics, which can reduce the cost of the heat storage system while ensuring the heat storage effect.

在一些实施例中，太阳能热泵4的热量输入温度为-10～40℃。太阳能热泵4能够更好地利用循环管路中导热介质的低温热量，太阳能热泵4可以制取并输出40～100℃的热量。太阳能热泵4利用低沸点制冷剂经过节流阀减压之后进入蒸发器蒸发吸热，太阳能热泵4利用压缩机将低沸点制冷剂蒸汽压缩，低沸点制冷剂经过冷凝器时放出吸收的热量而液化后，再回到节流阀处。太阳能热泵4能够利用低品味热源，提高蓄热系统蓄热容量。太阳能热泵4占地面积小，能够降低蓄热系统占用面积。In some embodiments, the heat input temperature of thesolar heat pump 4 is -10-40°C. Thesolar heat pump 4 can better utilize the low-temperature heat of the heat transfer medium in the circulation pipeline, and thesolar heat pump 4 can produce and output heat at 40-100°C. Thesolar heat pump 4 uses the low-boiling point refrigerant to enter the evaporator to evaporate and absorb heat after being decompressed by the throttle valve. Thesolar heat pump 4 uses the compressor to compress the low-boiling point refrigerant vapor. When the low-boiling point refrigerant passes through the condenser, it releases the absorbed heat and liquefies After that, return to the throttle valve. Thesolar heat pump 4 can utilize low-grade heat sources to increase the heat storage capacity of the heat storage system. Thesolar heat pump 4 occupies a small area, which can reduce the area occupied by the heat storage system.

由此，太阳能热泵4工作范围广，能够充分利用低温热量，提高蓄热系统热量利用效率。Therefore, thesolar heat pump 4 has a wide working range, can make full use of low-temperature heat, and improves the heat utilization efficiency of the heat storage system.

在一些实施例中，导热介质包括空气或二氧化碳。In some embodiments, the heat transfer medium includes air or carbon dioxide.

由此，导热介质包括空气、二氧化碳等介质。导热介质在循环管路中要经历高温、中温和低温，空气或二氧化碳成本低，导热介质发生泄漏不易污染环境。Thus, the heat transfer medium includes media such as air and carbon dioxide. The heat transfer medium has to experience high temperature, medium temperature and low temperature in the circulation pipeline, the cost of air or carbon dioxide is low, and the leakage of the heat transfer medium is not easy to pollute the environment.

在一些实施例中，太阳能集热装置1为平板型太阳能集热器、全玻璃真空管集热器、U型管式空管集热器、热管式真空管集热器和直流式真空管集热器中的至少一种。In some embodiments, the solar collector 1 is a flat-plate solar collector, an all-glass vacuum tube collector, a U-tube empty tube collector, a heat pipe vacuum tube collector, and a direct-flow vacuum tube collector. at least one of .

具体地，平板型太阳能集热器吸热面积大、制造成本低能够为蓄热系统充分供热。全玻璃真空管集热器吸热效率高，使用寿命长适应低温环境，能够配合蓄热系统工作。热管式真空管集热器集热效率高、得热量大、输出温度高适应热化学蓄热装置需求。直流式真空管集热器热效率高不易结垢，使用寿命长。Specifically, the flat-plate solar collector has a large heat absorption area and low manufacturing cost, which can fully supply heat to the heat storage system. The all-glass vacuum tube collector has high heat absorption efficiency, long service life, adapts to low temperature environment, and can work with heat storage system. The heat pipe vacuum tube collector has high heat collection efficiency, large heat gain, and high output temperature to meet the needs of thermochemical heat storage devices. The direct-flow vacuum tube collector has high thermal efficiency, is not easy to scale, and has a long service life.

在一些实施例中，显热蓄热装置和太阳能热泵4作为供热主体向热负荷供热，热化学蓄热装置为应急补充。In some embodiments, the sensible heat storage device and thesolar heat pump 4 are used as the heat supply body to supply heat to the heat load, and the thermochemical heat storage device is an emergency supplement.

由此，显热蓄热装置和太阳能热泵4的蓄热周期短，热化学蓄热装置的蓄热周期较长，能够实现蓄热系统实时供热又能满足跨季节储存热量的需求，提高了蓄热系统的供热灵活性。Therefore, the heat storage period of the sensible heat storage device and thesolar heat pump 4 is short, and the heat storage period of the thermochemical heat storage device is long, which can realize real-time heat supply of the heat storage system and meet the demand for heat storage across seasons, improving the Heating flexibility for thermal storage systems.

在本实用新型的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本实用新型和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本实用新型的限制。In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" The orientation or positional relationship indicated by , "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying the referred device Or elements must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention.

此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本实用新型的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

在本实用新型中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接或彼此可通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本实用新型中的具体含义。In the present utility model, unless otherwise expressly specified and limited, the terms "installation", "connection", "connection", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integration; it can be mechanical connection, electrical connection or communication with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication between two elements or the interaction relationship between the two elements , unless otherwise expressly qualified. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

在本实用新型中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first feature and the second feature through an intermediary indirect contact. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

在本实用新型中，术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本实用新型的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。In this disclosure, the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean specific features, structures, materials described in connection with the embodiment or example Or features are included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

尽管上面已经示出和描述了本实用新型的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本实用新型的限制，本领域的普通技术人员在本实用新型的范围内可以对上述实施例进行变化、修改、替换和变型。Although the embodiments of the present invention have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and should not be construed as limitations of the present invention, and those skilled in the art are within the scope of the present invention. Variations, modifications, substitutions and variations can be made to the above-described embodiments.

Claims (3)

Translated fromChinese

1.一种太阳能梯级蓄热系统，其特征在于，包括：1. A solar cascade thermal storage system, characterized in that it comprises:蓄热装置，所述蓄热装置包括依次串联的第一蓄热装置、第二蓄热装置和太阳能热泵，所述第一蓄热装置的最低蓄热温度、第二蓄热装置的最低蓄热温度和太阳能热泵的最低热量输入温度依次降低，所述第一蓄热装置为热化学蓄热装置，所述热化学蓄热装置的蓄热温度为400～1000℃，所述第二蓄热装置为显热蓄热装置，所述显热蓄热装置的蓄热温度为40～400℃，所述太阳能热泵的热量输入温度为-10～40℃；A heat storage device, the heat storage device includes a first heat storage device, a second heat storage device and a solar heat pump connected in series in sequence, the minimum heat storage temperature of the first heat storage device, the minimum heat storage temperature of the second heat storage device temperature and the minimum heat input temperature of the solar heat pump decrease sequentially, the first heat storage device is a thermochemical heat storage device, and the heat storage temperature of the thermochemical heat storage device is 400-1000°C, and the second heat storage device It is a sensible heat storage device, the heat storage temperature of the sensible heat storage device is 40-400°C, and the heat input temperature of the solar heat pump is -10-40°C;太阳能集热装置，所述太阳能集热装置的导热介质入口与太阳能热泵的导热介质出口连接，所述太阳能集热装置的导热介质出口与第一蓄热装置的导热介质入口连接；和A solar heat collection device, the heat transfer medium inlet of the solar heat collection device is connected to the heat transfer medium outlet of the solar heat pump, and the heat transfer medium outlet of the solar heat collection device is connected to the heat transfer medium inlet of the first heat storage device; and驱动机构，所述驱动机构用于驱动所述导热介质。A driving mechanism, the driving mechanism is used to drive the heat conducting medium.2.根据权利要求1所述的太阳能梯级蓄热系统，其特征在于，所述导热介质包括空气或二氧化碳。2. The cascaded solar heat storage system according to claim 1, wherein the heat transfer medium includes air or carbon dioxide.3.根据权利要求1所述的太阳能梯级蓄热系统，其特征在于，所述的太阳能集热装置为平板型太阳能集热器、全玻璃真空管集热器、U型管式真空管集热器、热管式真空管集热器和直流式真空管集热器中的至少一种。3. The solar energy cascade heat storage system according to claim 1, characterized in that, the solar heat collector is a flat-plate solar heat collector, an all-glass vacuum tube heat collector, a U-shaped tube type vacuum tube heat collector, At least one of a heat pipe type vacuum tube heat collector and a once-through type vacuum tube heat collector.

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