WO2020029422A1 - Disk type solar photothermal gradient utilization system - Google Patents

Disk type solar photothermal gradient utilization system Download PDF

Info

Publication number
WO2020029422A1
WO2020029422A1 PCT/CN2018/110368 CN2018110368W WO2020029422A1 WO 2020029422 A1 WO2020029422 A1 WO 2020029422A1 CN 2018110368 W CN2018110368 W CN 2018110368W WO 2020029422 A1 WO2020029422 A1 WO 2020029422A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat
storage
heat exchange
steam
solar
Prior art date
Application number
PCT/CN2018/110368
Other languages
French (fr)
Chinese (zh)
Inventor
蒋招梧
赵国军
樊贞圆
杨舟
吕政良
Original Assignee
昆山清芸新能源科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 昆山清芸新能源科技有限公司 filed Critical 昆山清芸新能源科技有限公司
Publication of WO2020029422A1 publication Critical patent/WO2020029422A1/en

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G6/00—Devices for producing mechanical power from solar energy
    • F03G6/06—Devices for producing mechanical power from solar energy with solar energy concentrating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/10—Adaptations for driving, or combinations with, electric generators
    • 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
    • Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines

Definitions

  • the invention relates to a solar energy utilization system, in particular to a dish-type solar photovoltaic thermal energy cascade utilization system.
  • Concentrating solar thermal utilization technology is one of the effective means of solar energy utilization.
  • solar concentrating technology there are four types of solar concentrating technology: trough, tower, dish, and Fresnel.
  • the dish solar technology has a higher concentration factor and can reach a higher temperature level.
  • dish-type solar technology has the advantage of flexible layout and can adapt to a variety of complex terrain conditions. It can not only operate independently as a small power source in remote areas, but also can combine a larger number of dish-type equipment to form a large-scale solar power station.
  • the traditional dish solar system uses a Stirling machine as a power generation device, and its cost has been persistent, and because there is no heat storage system, the output is greatly affected by solar fluctuations.
  • the existing dish solar system has a relatively simple output energy form (mainly electrical output). The wide temperature range brought by the advantages of the high concentration factor of dish solar technology cannot be fully utilized, and a large amount of low-quality heat Can not be effectively used, resulting in low solar energy utilization and conversion efficiency.
  • the technical scheme adopted by the present invention is: a dish-type solar photovoltaic thermal energy cascade utilization system including a solar heat collection system and a solar energy utilization system, and a storage / Heat exchange system
  • the storage / heat exchange system includes at least two cascade storage / heat exchange systems, each storage / heat exchange system is connected to a corresponding solar energy utilization system, between the solar heat collection system and the highest-level storage / heat exchange system
  • the solar heat collection system and the lowest-level storage / heat exchange system, and the adjacent steps of the storage / heat exchange system are connected through a heat transfer medium channel, and the first heat transfer medium flows through the heat transfer medium channel.
  • the first heat transfer medium absorbs heat in the solar heat collection system, it circulates to the highest-level storage / heat exchange system through the heat transfer medium channel to release heat, and then sequentially flows to the next through the heat transfer medium channel.
  • the stage storage / heat exchange system releases heat, releases heat step by step, and then returns to the solar heat collection system.
  • the storage / heat exchange system includes a high-temperature storage / heat exchange system, a medium-temperature storage / heat exchange system, and a low-temperature storage / heat exchange system.
  • the high-temperature storage / heat exchange system is a top-level cascade storage / heat exchange system.
  • the low-temperature storage / heat exchange system is a lowest-level cascade storage / heat exchange system.
  • the high-temperature storage / heat exchange system is connected to a high-temperature power generation system
  • the medium-temperature storage / heat exchange system is connected to a medium-temperature heat utilization system
  • the low-temperature storage / heat exchange system is connected to a low-temperature heat utilization system.
  • the heat transfer medium channel is provided with a power cycle device for providing cycle power for the first heat transfer medium.
  • the high-temperature storage / heat exchange system is a solid heat storage system.
  • the high-temperature power generation system includes a steam generator, a feed water pump, a steam turbine, and a condenser connected in sequence.
  • the steam turbine is connected with a generator, and the solid storage system
  • a second heat transfer medium flows between the heat system and the steam generator, the second heat transfer medium flows into the steam generator through a pipe, the feed water pump pumps fluid water into the steam generator, Water absorbs the heat of the second heat transfer medium and converts it into steam in the steam generator.
  • the steam flows into the steam turbine to do work to drive the generator to generate electricity.
  • the steam after doing the work flows into the condenser and condenses into Water is returned to the feedwater pump.
  • the medium-temperature storage / heat exchange system is an air-steam heat exchanger
  • the medium-temperature heat utilization system is a steam user system
  • an application is provided between the gas-steam heat exchanger and the steam user system.
  • a passage between the gas-steam heat exchanger and the steam user system is provided with a first circulating water pump that provides circulating power for circulating water.
  • the low-temperature storage / heat exchange system is an air-water heat exchanger
  • the low-temperature heat utilization system is a hot water user system
  • an application is provided between the air-water heat exchanger and the hot water user system.
  • a passage between the air-water heat exchanger and the hot water user system is provided with a second water pump for promoting water circulation.
  • the first heat transfer medium is a gas medium.
  • the second heat transfer medium is a gas medium.
  • the solid heat storage system has a built-in heat storage medium, and the heat storage medium is one or more combinations of high-temperature molten salt, magnesium brick, composite phase change material, ceramic, stone, metal, alloy, and concrete.
  • the operating pressure of the gas medium is 0 to 5 MPa.
  • the beneficial effects produced by the present invention include: the system of the present invention adopts a dish-type heat collector, which has a higher light concentration, avoids the cosine loss of solar radiation, significantly improves the optical efficiency of the system, and integrates multi-stage heat with heat storage Utilizing the system, while overcoming the limitations of intermittent and low stability of solar energy, it also improves the overall heat utilization efficiency and economy of the system.
  • the invention uses a gaseous working medium as a heat transfer medium, and solves the problems of flammability, explosiveness and strong corrosion of the traditional heat transfer medium.
  • the storage / heat exchange system provided in the invention effectively solves the fluctuation of solar power output of the traditional power generation system. Sexual impact issues.
  • Figure 1 is a schematic diagram of the basic principle of the system of the present invention.
  • FIG. 2 is a schematic structural diagram of an embodiment of the system of the present invention.
  • Dish-type solar heat collection system 2. High temperature storage / heat exchange system, 3. High temperature power generation system, 4. Medium temperature storage / heat exchange system, 5, Medium temperature heat utilization system, 6, Low temperature storage / heat exchange system, 7, low temperature heat utilization system, 8, power cycle equipment, 9, dish collector, 10, solid heat storage system, 11, steam generator, 12, circulation fan, 13, feed pump, 14, steam turbine, 15, Generator, 16, condenser, 17, gas-steam heat exchanger, 18, circulating water pump 1, 19, accumulator, 20, steam user, 21, gas-water heat exchanger, 22, circulating water pump 2, 23 , Water storage tank, 24, hot water users.
  • the dish solar photovoltaic thermal energy cascade utilization system includes a dish solar heat collection system 1, a high temperature storage / heat exchange system 2, a high temperature power generation system 3, a medium temperature storage / heat exchange system 4, and a medium temperature heat utilization System 5, low-temperature storage / heat exchanger 6, low-temperature heat utilization system 7, power cycle equipment 8, and heat transfer medium pipelines.
  • the dish-type solar heat collection system 1 is connected to the high-temperature storage / heat exchange system 2 and medium-temperature storage in sequence through pipelines.
  • low temperature storage / heat exchange system 6 the high temperature power generation system 3, intermediate temperature heat utilization system 5, low temperature heat utilization system 7 and high temperature storage / heat exchange system 2, intermediate temperature storage / heat exchange system 4 respectively
  • the low temperature storage / heat exchange system 6 is connected, and the power circulation device 8 provides circulating power for the heat transfer fluid in the pipeline.
  • the first heat transfer medium rises to a high temperature through the dish solar heat collection system, carries high-temperature heat, and passes through the high-temperature storage / heat exchange system 2, the intermediate-temperature storage / heat exchange system 4, and the low-temperature storage / heat exchange system 6 to release heat step by step.
  • the heat in the high-temperature section is used to generate electricity through the high-temperature power generation system 3 to achieve electrical output, and the heat in the middle and low temperature sections is used for the heat of the temperature counterpart through the medium-temperature heat utilization system 5 and the low-temperature heat utilization system 7, respectively.
  • the heat carried by the heat transfer fluid thus completes the energy cascade. Use, and finally return to the power cycle equipment 8 to complete a cycle.
  • the dish solar concentrating system is composed of a dish concentrator 9 or a circuit composed of several dish concentrators 9 connected in series and connected in parallel.
  • a single dish concentrator 9 has a condensing area of 10 m 2 to 500 m 2. .
  • the heat transfer fluid is one of air, nitrogen, helium, and carbon dioxide.
  • the operating pressure is 0 to 5 MPa, and the temperature is 300 to 1000 ° C. It has been verified that the operating pressure and temperature can effectively improve the energy density.
  • a high-temperature storage / heat exchange system stores a heat storage medium, which is one or more combinations of high-temperature molten salt, magnesium brick, composite phase change material, ceramics, stones, metals and alloys, and concrete.
  • the high-temperature power generation system is one of the Rankine cycle power generation system, supercritical carbon dioxide Brayton power generation system, Stirling power generation system, and compressed air power generation system.
  • Medium temperature storage / heat exchange system whose heat storage medium is one or more combinations of water, molten salt, magnesium brick, composite phase change material, ceramics, stones, metals and alloys, and concrete.
  • the medium temperature heat utilization system is one or a combination of industrial heat, power station water preheating, thermal refrigeration, and agricultural drying.
  • a low-temperature storage / heat exchange system whose heat storage medium is one or a combination of water, a low-temperature phase change material, and a low-temperature composite phase change material.
  • Low temperature heat utilization system one or a combination of building heating, domestic water, water purification, and commercial laundry.
  • the high-temperature storage / heat exchange system 2, the intermediate-temperature storage / heat exchange system 4, and the low-temperature storage / heat exchange system 6 are a solid heat storage system 10, an air-vapor heat exchanger 17, and an air-water heat exchanger 21, respectively.
  • the first heat transfer medium selects air, rises to a high temperature in the dish solar concentrating system 1, and sequentially passes through the solid heat storage system 10, the gas-steam heat exchanger 17, and the gas-water heat exchanger 21 to release heat step by step.
  • the hot fluid finally returns to the power cycle equipment 8 to complete an energy step utilization cycle.
  • the high-temperature section includes a solid heat storage system 10 and a high-temperature power generation system 3.
  • the high-temperature power generation system 3 includes a steam generator 11, a feed pump 13, a steam turbine 14, a generator 15, a condenser 16, and a plurality of pipes.
  • a circulating fan 12 is provided between the steam generator 11 and the steam generator 11 to provide circulating power for the second heat transfer medium.
  • the solid heat storage system 10 absorbs the heat of the first heat transfer medium, and releases the heat to the second heat transfer medium conveyed by the circulating fan 12, the second heat transfer medium is air.
  • the air delivered by the circulating fan 12 absorbs the stored heat from the solid heat storage system 10.
  • the heat-absorbing air passes through the steam generator 11 to heat the feed water delivered by the feed pump 13 into steam.
  • the steam enters the turbine 14 to drive the generator 15 and the steam after doing work enters the condenser 16 to condense into liquid water and returns to the feed pump 13 to complete a Power generation cycle.
  • the heat storage medium in the high-temperature storage / heat exchange system 2 is a liquid medium such as molten salt or water
  • the second heat transfer medium is the heat storage medium.
  • the middle temperature process is: when the solar energy is sufficient, the first heat transfer medium that has cooled down through the solid heat storage system 10 enters the gas-steam heat exchanger 17, and the first circulating water pump 18 transports water into the gas-steam heat exchanger 17 to generate a certain Working conditions of steam, steam is stored in the accumulator 19, to meet the steam user's all-weather demand for steam 24.
  • the low-temperature process is: when the solar energy is sufficient, the first heat transfer medium that is further cooled by the gas-vapor heat exchanger 17 enters the gas-water heat exchanger 21, and the second circulating water pump 22 transports water into the gas-water heat exchanger 21 generates hot water under a certain working condition, and the hot water is stored in the water storage tank 23 to meet the hot water demand of the hot water user 24.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Photovoltaic Devices (AREA)

Abstract

A disk type solar photothermal gradient utilization system, comprising a solar heat collection system (1) and a solar utilization system, wherein a heat storage/exchange system is provided between the solar heat collection system and the solar utilization system, and comprises at least two gradient heat storage/exchange systems; and each heat storage/exchange system is connected to the corresponding solar utilization system. According to the system, energy multistage utilization is adopted to improve energy utilization efficiency.

Description

一种碟式太阳能光热能源梯级利用系统Dish-type solar photothermal energy cascade utilization system 技术领域Technical field
本发明涉及一种太阳能利用系统，尤其涉及一种碟式太阳能光热能源梯级利用系统。The invention relates to a solar energy utilization system, in particular to a dish-type solar photovoltaic thermal energy cascade utilization system.
背景技术Background technique
聚光型太阳能热利用技术是太阳能利用的有效手段之一。一般地，太阳能聚光技术有槽式、塔式、碟式、菲涅尔式四种。其中碟式太阳能技术具有更高的聚光倍数，能达到更高的温度水平。并且，碟式太阳能技术具有布置灵活的优势，可适应多种复杂地形条件，不仅可以独立运行作为偏远地区的小型电源，可以将更多数量的碟式设备组合起来形成规模化太阳能发电站。Concentrating solar thermal utilization technology is one of the effective means of solar energy utilization. Generally, there are four types of solar concentrating technology: trough, tower, dish, and Fresnel. Among them, the dish solar technology has a higher concentration factor and can reach a higher temperature level. In addition, dish-type solar technology has the advantage of flexible layout and can adapt to a variety of complex terrain conditions. It can not only operate independently as a small power source in remote areas, but also can combine a larger number of dish-type equipment to form a large-scale solar power station.
传统碟式太阳能系统采用斯特林机作为发电设备，其成本久居不下，并且由于没有储热系统，输出受太阳能波动性影响大。此外，现有的碟式太阳能系统存在输出能量形式较为单一的现象(主要为电输出)，碟式太阳能技术自身高聚光倍数优势所带来的宽温度范围无法得到充分发挥，大量中低品质的热量无法得到有效利用，导致太阳能利用和转换效率低。The traditional dish solar system uses a Stirling machine as a power generation device, and its cost has been persistent, and because there is no heat storage system, the output is greatly affected by solar fluctuations. In addition, the existing dish solar system has a relatively simple output energy form (mainly electrical output). The wide temperature range brought by the advantages of the high concentration factor of dish solar technology cannot be fully utilized, and a large amount of low-quality heat Can not be effectively used, resulting in low solar energy utilization and conversion efficiency.
发明内容Summary of the invention
本发明为了解决现有碟式太阳能技术自身高聚光倍数优势所带来的宽温度范围无法得到充分发挥，大量中低品质的热量无法得到有效利用，导致太阳能利用和转换效率低的问题，提供了一种碟式太阳能光热能源梯级利用系统，该系统采用能力多级利用提高能量利用效率。In order to solve the problem that the wide temperature range brought by the advantages of the high concentration factor of the existing dish solar technology itself cannot be fully utilized, and a large amount of low-quality heat cannot be effectively used, which leads to the problem of low solar energy utilization and conversion efficiency, it provides a A dish-type solar photothermal energy cascade utilization system, which employs multiple levels of capacity to improve energy utilization efficiency.
本发明所采取的技术方案为：一种碟式太阳能光热能源梯级利用系统，包括太阳能集热系统和太阳能利用系统，在所述太阳能集热系统与所述太阳能利用系统之间设有储/换热系统，所述储/换热系统包括至少两个梯级储/换热系统，每个储/换热系统连接相应的太阳能利用系统，太阳能集热系统与最高级储/换热系统之间、太阳能集热系统与最低级储/换热系统之间、相邻梯级的储/换热系统之间均通过传热介质通道连接，所述传热介质通道内流通有第一传热介质，所述第一传热介质在所述太阳能集热系统中吸收热量后通过所述传热介质通道流通至所述最高级储/换热系统释放热量，然后通过传热介质通道依次流通至下一级储/换热系统释放热量进行逐级释放热量后回流至所述太阳能集热系统。The technical scheme adopted by the present invention is: a dish-type solar photovoltaic thermal energy cascade utilization system including a solar heat collection system and a solar energy utilization system, and a storage / Heat exchange system, the storage / heat exchange system includes at least two cascade storage / heat exchange systems, each storage / heat exchange system is connected to a corresponding solar energy utilization system, between the solar heat collection system and the highest-level storage / heat exchange system The solar heat collection system and the lowest-level storage / heat exchange system, and the adjacent steps of the storage / heat exchange system are connected through a heat transfer medium channel, and the first heat transfer medium flows through the heat transfer medium channel. After the first heat transfer medium absorbs heat in the solar heat collection system, it circulates to the highest-level storage / heat exchange system through the heat transfer medium channel to release heat, and then sequentially flows to the next through the heat transfer medium channel. The stage storage / heat exchange system releases heat, releases heat step by step, and then returns to the solar heat collection system.
进一步的，所述储/换热系统包括高温储/换热系统、中温储/换热系统和低温储/换热系统，所述高温储/换热系统为最高级梯级储/换热系统，所述低温储/换热系统为最低级梯级储/换热系统。Further, the storage / heat exchange system includes a high-temperature storage / heat exchange system, a medium-temperature storage / heat exchange system, and a low-temperature storage / heat exchange system. The high-temperature storage / heat exchange system is a top-level cascade storage / heat exchange system. The low-temperature storage / heat exchange system is a lowest-level cascade storage / heat exchange system.
进一步的，所述高温储/换热系统连接有高温发电系统，所述中温储/换热系统连接有中温热利用系统，所述低温储/换热系统连接有低温热利用系统，所述传热介质通道上设有用于为第一传热介质提供循环动力的动力循环设备。Further, the high-temperature storage / heat exchange system is connected to a high-temperature power generation system, the medium-temperature storage / heat exchange system is connected to a medium-temperature heat utilization system, and the low-temperature storage / heat exchange system is connected to a low-temperature heat utilization system. The heat transfer medium channel is provided with a power cycle device for providing cycle power for the first heat transfer medium.
进一步的，所述高温储/换热系统为固体储热系统，所述高温发电系统包括依次连通的蒸汽发生器、给水泵、汽轮机和冷凝器，所述汽轮机连接有发电机，所述固体储热系统与所述蒸汽发生器之间流通有第二传热介质，所述第二传热介质通过管道流入所述蒸汽发生器，所述给水泵向所述蒸汽发生器内泵入流体水，水吸收所述第二传热介质的热量在所述蒸汽发生器内转化为蒸汽，所述蒸汽流入所述汽轮机内做功带动所述发电机发电，做功后的蒸汽流入所述冷凝器中凝结为水回流至所述给水泵。Further, the high-temperature storage / heat exchange system is a solid heat storage system. The high-temperature power generation system includes a steam generator, a feed water pump, a steam turbine, and a condenser connected in sequence. The steam turbine is connected with a generator, and the solid storage system A second heat transfer medium flows between the heat system and the steam generator, the second heat transfer medium flows into the steam generator through a pipe, the feed water pump pumps fluid water into the steam generator, Water absorbs the heat of the second heat transfer medium and converts it into steam in the steam generator. The steam flows into the steam turbine to do work to drive the generator to generate electricity. The steam after doing the work flows into the condenser and condenses into Water is returned to the feedwater pump.
进一步的，所述中温储/换热系统为气—汽换热器，所述中温热利用系统为蒸汽用户系统，在所述气—汽换热器与所述蒸汽用户系统之间设有用于存储蒸汽的蓄能器，所述气—汽换热器与所述蒸汽用户系统之间的通道上设有为循环水提供循环动力的第一循环水泵。Further, the medium-temperature storage / heat exchange system is an air-steam heat exchanger, the medium-temperature heat utilization system is a steam user system, and an application is provided between the gas-steam heat exchanger and the steam user system. In an accumulator for storing steam, a passage between the gas-steam heat exchanger and the steam user system is provided with a first circulating water pump that provides circulating power for circulating water.
进一步的，所述低温储/换热系统为气-水换热器，所述低温热利用系统为热水用户系统，所述气-水换热器与所述热水用户系统之间设有用于存储热水的蓄水罐，所述气-水换热器与所述热水用户系统之间的通道上设有用于促进水循环的第二水泵。Further, the low-temperature storage / heat exchange system is an air-water heat exchanger, the low-temperature heat utilization system is a hot water user system, and an application is provided between the air-water heat exchanger and the hot water user system. In a water storage tank for storing hot water, a passage between the air-water heat exchanger and the hot water user system is provided with a second water pump for promoting water circulation.
进一步的，所述第一传热介质为气体介质。Further, the first heat transfer medium is a gas medium.
进一步的，所述第二传热介质为气体介质。Further, the second heat transfer medium is a gas medium.
进一步的，所述固体储热系统内置有储热介质，所述储热介质为高温熔融盐、镁砖、复合相变材料、陶瓷、石子、金属及合金、混凝土的一种或多种组合。Further, the solid heat storage system has a built-in heat storage medium, and the heat storage medium is one or more combinations of high-temperature molten salt, magnesium brick, composite phase change material, ceramic, stone, metal, alloy, and concrete.
进一步的，所述气体介质的运行压力为0～5MPa。Further, the operating pressure of the gas medium is 0 to 5 MPa.
本发明所产生的有益效果包括：本发明的系统采用碟式集热器，具有更高的聚光倍数，避免了太阳辐射余弦损失，显著提高系统光学效率，同时集成带储热的多级热利用系统，在克服了太阳能间歇性和低稳定性的局限的同时，还提高了 系统整体热利用效率和经济性。本发明采用气体工质作为传热介质，解决了传统传热介质存在易燃易爆、腐蚀性强的问题；本发明中设置储/换热系统，有效的解决了传统发电系统输出受太阳能波动性影响大的问题。The beneficial effects produced by the present invention include: the system of the present invention adopts a dish-type heat collector, which has a higher light concentration, avoids the cosine loss of solar radiation, significantly improves the optical efficiency of the system, and integrates multi-stage heat with heat storage Utilizing the system, while overcoming the limitations of intermittent and low stability of solar energy, it also improves the overall heat utilization efficiency and economy of the system. The invention uses a gaseous working medium as a heat transfer medium, and solves the problems of flammability, explosiveness and strong corrosion of the traditional heat transfer medium. The storage / heat exchange system provided in the invention effectively solves the fluctuation of solar power output of the traditional power generation system. Sexual impact issues.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1是本发明系统的基本原理结构示意图。Figure 1 is a schematic diagram of the basic principle of the system of the present invention.
图2是本发明系统一个实施例的结构示意图。FIG. 2 is a schematic structural diagram of an embodiment of the system of the present invention.
图中：In the picture:
1、碟式太阳能集热系统，2、高温储/换热系统，3、高温发电系统，4、中温储/换热系统，5、中温热利用系统，6、低温储/换热系统，7、低温热利用系统，8、动力循环设备，9、碟式集热器，10、固体储热系统，11、蒸汽发生器，12、循环风机，13、给水泵，14、汽轮机，15、发电机，16、冷凝器，17、气—汽换热器，18、循环水泵1,19、蓄能器，20、蒸汽用户，21、气—水换热器，22、循环水泵2，23、蓄水罐，24、热水用户。1. Dish-type solar heat collection system, 2. High temperature storage / heat exchange system, 3. High temperature power generation system, 4. Medium temperature storage / heat exchange system, 5, Medium temperature heat utilization system, 6, Low temperature storage / heat exchange system, 7, low temperature heat utilization system, 8, power cycle equipment, 9, dish collector, 10, solid heat storage system, 11, steam generator, 12, circulation fan, 13, feed pump, 14, steam turbine, 15, Generator, 16, condenser, 17, gas-steam heat exchanger, 18, circulating water pump 1, 19, accumulator, 20, steam user, 21, gas-water heat exchanger, 22, circulating water pump 2, 23 , Water storage tank, 24, hot water users.
具体实施方式detailed description
下面结合附图和具体实施方式对本发明做进一步详细的解释说明，但应当理解为本发明的保护范围并不受具体实施方式的限制。The present invention is further explained in detail below with reference to the drawings and specific embodiments, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.
参阅图1，所述碟式太阳能光热能源梯级利用系统，包括碟式太阳能集热系统1、高温储/换热系统2、高温发电系统3、中温储/换热系统4、中温热利用系统5、低温储/换热器6、低温热利用系统7以及动力循环设备8及传热介质管道，所述碟式太阳能集热系统1通过管道依次连接高温储/换热系统2、中温储/换热系统4、低温储/换热系统6，所述高温发电系统3、中温热利用系统5、低温热利用系统7分别与高温储/换热系统2、中温储/换热系统4、低温储/换热系统6连接，所述动力循环设备8为管道中的传热流体提供循环动力。Referring to FIG. 1, the dish solar photovoltaic thermal energy cascade utilization system includes a dish solar heat collection system 1, a high temperature storage / heat exchange system 2, a high temperature power generation system 3, a medium temperature storage / heat exchange system 4, and a medium temperature heat utilization System 5, low-temperature storage / heat exchanger 6, low-temperature heat utilization system 7, power cycle equipment 8, and heat transfer medium pipelines. The dish-type solar heat collection system 1 is connected to the high-temperature storage / heat exchange system 2 and medium-temperature storage in sequence through pipelines. / Heat exchange system 4, low temperature storage / heat exchange system 6, the high temperature power generation system 3, intermediate temperature heat utilization system 5, low temperature heat utilization system 7 and high temperature storage / heat exchange system 2, intermediate temperature storage / heat exchange system 4 respectively The low temperature storage / heat exchange system 6 is connected, and the power circulation device 8 provides circulating power for the heat transfer fluid in the pipeline.
第一传热介质通过碟式太阳能集热系统升至高温，携带高温热量，依次经过高温储/换热系统2、中温储/换热系统4、低温储/换热系统6逐级释放热量，高温段热量通过高温发电系统3进行发电实现电输出，中温及低温段热量分别通过中温热利用系统5、低温热利用系统7进行温度对口的热量利用，至此传热流体携带的热量完成能源梯级利用，最后回到动力循环设备8完成一个循环。The first heat transfer medium rises to a high temperature through the dish solar heat collection system, carries high-temperature heat, and passes through the high-temperature storage / heat exchange system 2, the intermediate-temperature storage / heat exchange system 4, and the low-temperature storage / heat exchange system 6 to release heat step by step. The heat in the high-temperature section is used to generate electricity through the high-temperature power generation system 3 to achieve electrical output, and the heat in the middle and low temperature sections is used for the heat of the temperature counterpart through the medium-temperature heat utilization system 5 and the low-temperature heat utilization system 7, respectively. The heat carried by the heat transfer fluid thus completes the energy cascade. Use, and finally return to the power cycle equipment 8 to complete a cycle.
碟式太阳能聚光系统由一个碟式聚光器9，或者由若干个碟式聚光器9串联 所组成的回路再并联组成，单个碟式聚光器9聚光面积为10m 2～500m 2。 The dish solar concentrating system is composed of a dish concentrator 9 or a circuit composed of several dish concentrators 9 connected in series and connected in parallel. A single dish concentrator 9 has a condensing area of 10 m 2 to 500 m 2. .
传热流体为空气、氮气、氦气、二氧化碳其中之一，运行压力为0～5MPa，温度300～1000℃，经验证该运行压力和温度可有效提高能量密度。The heat transfer fluid is one of air, nitrogen, helium, and carbon dioxide. The operating pressure is 0 to 5 MPa, and the temperature is 300 to 1000 ° C. It has been verified that the operating pressure and temperature can effectively improve the energy density.
高温储/换热系统中存储有储热介质，该储热介质是高温熔融盐、镁砖、复合相变材料、陶瓷、石子、金属及合金、混凝土的一种或多种组合。A high-temperature storage / heat exchange system stores a heat storage medium, which is one or more combinations of high-temperature molten salt, magnesium brick, composite phase change material, ceramics, stones, metals and alloys, and concrete.
高温发电系统，为朗肯循环发电系统、超临界二氧化碳布雷顿发电系统、斯特林发电系统、压缩空气发电系统其中之一。The high-temperature power generation system is one of the Rankine cycle power generation system, supercritical carbon dioxide Brayton power generation system, Stirling power generation system, and compressed air power generation system.
中温储/换热系统，其储热介质是水、熔融盐、镁砖、复合相变材料、陶瓷、石子、金属及合金、混凝土的一种或多种组合。Medium temperature storage / heat exchange system, whose heat storage medium is one or more combinations of water, molten salt, magnesium brick, composite phase change material, ceramics, stones, metals and alloys, and concrete.
中温热利用系统，为工业用热、电站给水预热、热制冷、农业烘干其中之一或组合。The medium temperature heat utilization system is one or a combination of industrial heat, power station water preheating, thermal refrigeration, and agricultural drying.
低温储/换热系统，其储热介质是水、低温相变材料、低温复合相变材料其中之一或组合。A low-temperature storage / heat exchange system, whose heat storage medium is one or a combination of water, a low-temperature phase change material, and a low-temperature composite phase change material.
低温热利用系统，为建筑物供暖、生活用水、水净化、商业洗衣其中一种或组合。Low temperature heat utilization system, one or a combination of building heating, domestic water, water purification, and commercial laundry.
进一步地，如图2所示，为本发明系统的一个实施例，结合图1、2详尽描述实施例的具体实施方式。高温储/换热系统2、中温储/换热系统4、低温储/换热系统6分别为固体储热系统10、气-汽换热器17、气-水换热器21。Further, as shown in FIG. 2, an embodiment of the system of the present invention is described in detail with reference to FIGS. 1 and 2. The high-temperature storage / heat exchange system 2, the intermediate-temperature storage / heat exchange system 4, and the low-temperature storage / heat exchange system 6 are a solid heat storage system 10, an air-vapor heat exchanger 17, and an air-water heat exchanger 21, respectively.
第一传热介质选择空气，在碟式太阳能聚光系统1中升至高温，依次经过固体储热系统10、气-汽换热器17、气-水换热器21逐级释放热量，传热流体最后回到动力循环设备8完成一个能源梯级利用循环。The first heat transfer medium selects air, rises to a high temperature in the dish solar concentrating system 1, and sequentially passes through the solid heat storage system 10, the gas-steam heat exchanger 17, and the gas-water heat exchanger 21 to release heat step by step. The hot fluid finally returns to the power cycle equipment 8 to complete an energy step utilization cycle.
高温段的包括固体储热系统10和高温发电系统3，高温发电系统3包括蒸汽发生器11、给水泵13、汽轮机14、发电机15、冷凝器16及多根管道，在固体储热系统10和蒸汽发生器11之间设置循环风机12，用于为第二传热介质提供循环动力。在太阳能充足时，固体储热系统10一边吸收第一传热介质的热量，一边将热量释放给循环风机12所输送的第二传热介质，第二传热介质为空气，在多云、阴雨天或者夜晚时，循环风机12所输送的空气从固体储热系统10中吸收存储的热量。吸收热量的空气经过蒸汽发生器11将给水泵13输送的给水加热成蒸汽，蒸汽进入汽轮机14带动发电机15，经过做功的蒸汽再进入冷凝器16 冷凝成液态水回到给水泵13，完成一个发电循环。当高温储/换热系统2内的储热介质为熔融盐或水等液态介质时，第二传热介质即为储热介质。The high-temperature section includes a solid heat storage system 10 and a high-temperature power generation system 3. The high-temperature power generation system 3 includes a steam generator 11, a feed pump 13, a steam turbine 14, a generator 15, a condenser 16, and a plurality of pipes. A circulating fan 12 is provided between the steam generator 11 and the steam generator 11 to provide circulating power for the second heat transfer medium. When the solar energy is sufficient, the solid heat storage system 10 absorbs the heat of the first heat transfer medium, and releases the heat to the second heat transfer medium conveyed by the circulating fan 12, the second heat transfer medium is air. On cloudy, rainy days Or at night, the air delivered by the circulating fan 12 absorbs the stored heat from the solid heat storage system 10. The heat-absorbing air passes through the steam generator 11 to heat the feed water delivered by the feed pump 13 into steam. The steam enters the turbine 14 to drive the generator 15 and the steam after doing work enters the condenser 16 to condense into liquid water and returns to the feed pump 13 to complete a Power generation cycle. When the heat storage medium in the high-temperature storage / heat exchange system 2 is a liquid medium such as molten salt or water, the second heat transfer medium is the heat storage medium.
中温段流程为：在太阳能充足时，经过固体储热系统10降温后的第一传热介质进入气-汽换热器17，第一循环水泵18输送水进入气-汽换热器17产生一定工况的蒸汽，蒸汽存储于蓄能器19中，满足蒸汽用户20全天候的蒸汽需求。The middle temperature process is: when the solar energy is sufficient, the first heat transfer medium that has cooled down through the solid heat storage system 10 enters the gas-steam heat exchanger 17, and the first circulating water pump 18 transports water into the gas-steam heat exchanger 17 to generate a certain Working conditions of steam, steam is stored in the accumulator 19, to meet the steam user's all-weather demand for steam 24.
低温段流程为：在太阳能充足时，经过气-汽换热器17进一步降温后的第一传热介质进入气-水换热器21，第二循环水泵22输送水进入气-水换热器21产生一定工况的热水，热水存储于蓄水罐23中，满足热水用户24全天候的热水需求。The low-temperature process is: when the solar energy is sufficient, the first heat transfer medium that is further cooled by the gas-vapor heat exchanger 17 enters the gas-water heat exchanger 21, and the second circulating water pump 22 transports water into the gas-water heat exchanger 21 generates hot water under a certain working condition, and the hot water is stored in the water storage tank 23 to meet the hot water demand of the hot water user 24.
上述仅为本发明的优选实施例，本发明并不仅限于实施例的内容。对于本领域中的技术人员来说，在本发明的技术方案范围内可以有各种变化和更改，所作的任何变化和更改，均在本发明保护范围之内。The above are only preferred embodiments of the present invention, and the present invention is not limited to the contents of the embodiments. For those skilled in the art, various changes and modifications can be made within the technical solution of the present invention, and any changes and modifications made are within the protection scope of the present invention.

Claims (10)

  1. 一种碟式太阳能光热能源梯级利用系统，包括太阳能集热系统和太阳能利用系统，其特征在于：在所述太阳能集热系统与所述太阳能利用系统之间设有储/换热系统，所述储/换热系统包括至少两个梯级储/换热系统，每个储/换热系统连接相应的太阳能利用系统，太阳能集热系统与最高级储/换热系统之间、太阳能集热系统与最低级储/换热系统之间、相邻梯级的储/换热系统之间均通过传热介质通道连接，所述传热介质通道内流通有第一传热介质，所述第一传热介质在所述太阳能集热系统中吸收热量后通过所述传热介质通道流通至所述最高级储/换热系统释放热量，然后通过传热介质通道依次流通至下一级储/换热系统释放热量进行逐级释放热量后回流至所述太阳能集热系统。A dish-type solar photothermal energy cascade utilization system includes a solar heat collection system and a solar energy utilization system, which is characterized in that a storage / heat exchange system is provided between the solar heat collection system and the solar energy utilization system. The storage / heat exchange system includes at least two cascade storage / heat exchange systems, each storage / heat exchange system is connected to a corresponding solar energy utilization system, between the solar heat collection system and the highest-level storage / heat exchange system, the solar heat collection system It is connected to the lowest level storage / heat exchange system and adjacent steps of storage / heat exchange systems through a heat transfer medium channel. A first heat transfer medium flows through the heat transfer medium channel. After the heat medium absorbs heat in the solar heat collection system, it circulates to the highest-level storage / heat exchange system through the heat transfer medium channel to release heat, and then flows through the heat transfer medium channel to the next level of storage / heat exchange in sequence. The system releases heat to release the heat step by step, and then returns to the solar heat collection system.
  2. 根据权利要求1所述的碟式太阳能光热能源梯级利用系统，其特征在于：所述储/换热系统包括高温储/换热系统、中温储/换热系统和低温储/换热系统，所述高温储/换热系统为最高级梯级储/换热系统，所述低温储/换热系统为最低级梯级储/换热系统。The cascade solar photovoltaic thermal energy cascade utilization system according to claim 1, wherein the storage / heat exchange system comprises a high temperature storage / heat exchange system, a medium temperature storage / heat exchange system, and a low temperature storage / heat exchange system, The high-temperature storage / heat exchange system is the highest-level cascade storage / heat exchange system, and the low-temperature storage / heat exchange system is the lowest-level cascade storage / heat exchange system.
  3. 根据权利要求2所述的碟式太阳能光热能源梯级利用系统，其特征在于：所述高温储/换热系统连接有高温发电系统，所述中温储/换热系统连接有中温热利用系统，所述低温储/换热系统连接有低温热利用系统，所述传热介质通道上设有用于为第一传热介质提供循环动力的动力循环设备。The cascade solar photovoltaic thermal energy cascade utilization system according to claim 2, wherein the high temperature storage / heat exchange system is connected to a high temperature power generation system, and the medium temperature storage / heat exchange system is connected to a medium temperature heat utilization system. The low temperature storage / heat exchange system is connected with a low temperature heat utilization system, and the heat transfer medium channel is provided with a power cycle device for providing cycle power for the first heat transfer medium.
  4. 根据权利要求3所述的碟式太阳能光热能源梯级利用系统，其特征在于：所述高温储/换热系统为固体储热系统，所述高温发电系统包括依次连通的蒸汽发生器、给水泵、汽轮机和冷凝器，所述汽轮机连接有发电机，所述固体储热系统与所述蒸汽发生器之间流通有第二传热介质，所述第二传热介质通过管道流入所述蒸汽发生器，所述给水泵向所述蒸汽发生器内泵入流体水，水吸收所述第二传热介质的热量在所述蒸汽发生器内转化为蒸汽，所述蒸汽流入所述汽轮机内做功带动所述发电机发电，做功后的蒸汽流入所述冷凝器中凝结为水回流至所述给水泵。The cascade solar photovoltaic thermal energy cascade utilization system according to claim 3, wherein the high-temperature storage / heat exchange system is a solid heat storage system, and the high-temperature power generation system includes a steam generator and a feed water pump which are sequentially connected. A steam turbine and a condenser, wherein the steam turbine is connected to a generator, a second heat transfer medium flows between the solid heat storage system and the steam generator, and the second heat transfer medium flows into the steam through a pipe to occur The water pump pumps fluid water into the steam generator. The water absorbs the heat of the second heat transfer medium and is converted into steam in the steam generator. The steam flows into the steam turbine to perform work. The generator generates electricity, and the steam after performing the work flows into the condenser and condenses into water to return to the feed water pump.
  5. 根据权利要求3所述的碟式太阳能光热能源梯级利用系统，其特征在于：所述中温储/换热系统为气—汽换热器，所述中温热利用系统为蒸汽用户系统，在所述气—汽换热器与所述蒸汽用户系统之间设有用于存储蒸汽的蓄能器，所述气—汽换热器与所述蒸汽用户系统之间的通道上设有为循环水提供循环动力的第 一循环水泵。The cascade solar photovoltaic thermal energy cascade utilization system according to claim 3, wherein the medium temperature storage / heat exchange system is a gas-steam heat exchanger, and the medium temperature heat utilization system is a steam user system. An accumulator for storing steam is provided between the gas-steam heat exchanger and the steam user system, and a passage between the gas-steam heat exchanger and the steam user system is provided with circulating water. A first circulating water pump that provides circulating power.
  6. 根据权利要求3所述的碟式太阳能光热能源梯级利用系统，其特征在于：所述低温储/换热系统为气-水换热器，所述低温热利用系统为热水用户系统，所述气-水换热器与所述热水用户系统之间设有用于存储热水的蓄水罐，所述气-水换热器与所述热水用户系统之间的通道上设有用于促进水循环的第二水泵。The cascade solar photovoltaic thermal energy cascade utilization system according to claim 3, wherein the low temperature storage / heat exchange system is an air-water heat exchanger, and the low temperature heat utilization system is a hot water user system. A water storage tank for storing hot water is provided between the gas-water heat exchanger and the hot water user system, and a passage between the gas-water heat exchanger and the hot water user system is provided for A second water pump that promotes water circulation.
  7. 根据权利要求1所述的碟式太阳能光热能源梯级利用系统，其特征在于：所述第一传热介质为气体介质。The cascade solar photovoltaic thermal energy cascade utilization system according to claim 1, wherein the first heat transfer medium is a gas medium.
  8. 根据权利要求4所述的碟式太阳能光热能源梯级利用系统，其特征在于：所述第二传热介质为气体介质。The cascade solar photovoltaic thermal energy cascade utilization system according to claim 4, wherein the second heat transfer medium is a gas medium.
  9. 根据权利要求2所述的碟式太阳能光热能源梯级利用系统，其特征在于：所述高温储/换热系统内置有储热介质，所述储热介质为高温熔融盐、镁砖、复合相变材料、陶瓷、石子、金属及合金、混凝土的一种或多种组合。The cascade solar photovoltaic thermal energy cascade utilization system according to claim 2, wherein the high-temperature storage / heat exchange system has a built-in heat storage medium, and the heat storage medium is a high-temperature molten salt, magnesium brick, and composite phase. One or more combinations of variable materials, ceramics, stones, metals and alloys, and concrete.
  10. 根据权利要求7所述的碟式太阳能光热能源梯级利用系统，其特征在于：所述气体介质的运行压力为0～5MPa。The cascade solar photovoltaic thermal energy cascade utilization system according to claim 7, wherein the operating pressure of the gas medium is 0 to 5 MPa.
PCT/CN2018/110368 2018-08-10 2018-10-16 Disk type solar photothermal gradient utilization system WO2020029422A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810909403.6 2018-08-10
CN201810909403.6A CN109099605A (en) 2018-08-10 2018-08-10 A kind of disc type solar energy photo-thermal energy gradient utilization system

Publications (1)

Publication Number Publication Date
WO2020029422A1 true WO2020029422A1 (en) 2020-02-13

Family

ID=64849275

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/110368 WO2020029422A1 (en) 2018-08-10 2018-10-16 Disk type solar photothermal gradient utilization system

Country Status (2)

Country Link
CN (1) CN109099605A (en)
WO (1) WO2020029422A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112944697A (en) * 2021-02-05 2021-06-11 国网综合能源服务集团有限公司 Solar photo-thermal/photovoltaic comprehensive energy cascade utilization system
CN115095494A (en) * 2022-06-21 2022-09-23 国家电投集团科学技术研究院有限公司 Photovoltaic photo-thermal system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100115394A (en) * 2009-04-19 2010-10-28 임효진 The solar heat generating system having multi serial super heater
CN102176648A (en) * 2011-03-03 2011-09-07 重庆大学 Disc type solar heat-electricity direct converting system
JP2014122576A (en) * 2012-12-20 2014-07-03 Kawasaki Heavy Ind Ltd Solar heat utilization system
CN105627799A (en) * 2014-10-31 2016-06-01 中广核太阳能开发有限公司 Stepped heat storage system and stepped heat storage method
CN106016767A (en) * 2016-05-26 2016-10-12 上海光热实业有限公司 Gradient solar heat energy utilization system with energy storage function and use method thereof
CN106382837A (en) * 2016-09-30 2017-02-08 全球能源互联网研究院 Heat energy gradient utilization system
CN107178910A (en) * 2017-05-22 2017-09-19 东北电力大学 A kind of solar energy heat distribution system based on CPVT and step accumulation of heat

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2007348242A1 (en) * 2007-03-08 2008-09-12 Research Foundation Of The City University Of New York Solar power plant and method and/or system of storing energy in a concentrated solar power plant
CN101825073A (en) * 2010-05-10 2010-09-08 华中科技大学 Distributed solar energy cascade utilization system
CN204880777U (en) * 2015-06-10 2015-12-16 广州万宝集团有限公司 System is used multipurposely to solar energy
CN105822513A (en) * 2016-05-13 2016-08-03 华中科技大学 Solar stepped heat collection and stepped power generation system and power generation method thereof
CN206111443U (en) * 2016-08-19 2017-04-19 云南科威液态金属谷研发有限公司 Trough type solar thermal power generation system system
CN106440414A (en) * 2016-10-26 2017-02-22 广州万宝集团有限公司 Cascade heat utilization system for medium-high temperature sections
CN209116569U (en) * 2018-08-10 2019-07-16 天津清芸主力能源科技有限公司 A kind of disc type solar energy photo-thermal energy gradient utilization system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100115394A (en) * 2009-04-19 2010-10-28 임효진 The solar heat generating system having multi serial super heater
CN102176648A (en) * 2011-03-03 2011-09-07 重庆大学 Disc type solar heat-electricity direct converting system
JP2014122576A (en) * 2012-12-20 2014-07-03 Kawasaki Heavy Ind Ltd Solar heat utilization system
CN105627799A (en) * 2014-10-31 2016-06-01 中广核太阳能开发有限公司 Stepped heat storage system and stepped heat storage method
CN106016767A (en) * 2016-05-26 2016-10-12 上海光热实业有限公司 Gradient solar heat energy utilization system with energy storage function and use method thereof
CN106382837A (en) * 2016-09-30 2017-02-08 全球能源互联网研究院 Heat energy gradient utilization system
CN107178910A (en) * 2017-05-22 2017-09-19 东北电力大学 A kind of solar energy heat distribution system based on CPVT and step accumulation of heat

Also Published As

Publication number Publication date
CN109099605A (en) 2018-12-28

Similar Documents

Publication Publication Date Title
CN208380764U (en) A kind of Bretton solar-thermal generating system of the improvement based on slot type heliostat
CN106014891B (en) A kind of groove type solar association circulating power generation system
WO2015154585A1 (en) Optimized integrated system for solar-biomass hybrid electricity generation
CN101915224A (en) Tower type solar energy circulating heat power generating system
CN201650630U (en) Device generating electricity by solar energy and terrestrial heat
CN111486068B (en) Solar-assisted ocean thermoelectric power generation system
CN103790792B (en) Photospot solar water heat accumulation electricity generation system
WO2012022273A1 (en) Solar power ammonia thermoelectric conversion system
CN204572366U (en) Enclosed Boulez is adopted to pause the tower-type solar thermal power generating system of circulation
CN108507198B (en) A kind of photo-thermal power generation high-temp solid hold over system
CN102080635A (en) Device for generating electricity by using solar energy and ground heat and using method thereof
CN202696508U (en) High-power concentrated solar power photo-thermal synthetic power generation system
CN104764217A (en) Generalized closed Brayton type tower type solar thermal power generation method and system
CN106499601B (en) Closed helium turbine tower type solar thermal power generation system with heat storage function
CN209116569U (en) A kind of disc type solar energy photo-thermal energy gradient utilization system
WO2020029422A1 (en) Disk type solar photothermal gradient utilization system
CN203348019U (en) System improving complex conversion efficiency of heat and electricity between terrestrial heat energy and solar energy
CN102661259B (en) Integrated solar thermal power generation system
CN203348020U (en) Geothermal power generation system adopting photo-thermal secondary evaporation
CN214998050U (en) Low-temperature solar photo-thermal power generation system
CN115468317A (en) Carnot battery energy storage device based on solar photovoltaic photo-thermal gradient utilization
CN101388626A (en) Solar electric generating apparatus
CN106123040B (en) The solar heat power generation system of integrated twin furnace biomass boiler
CN110821584A (en) Supercritical carbon dioxide Rankine cycle system and combined cycle system
CN204961184U (en) Multistage single screw rod line focus solar thermal energy electricity federation of integrated fused salt heat accumulation supplies system

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18929668

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18929668

Country of ref document: EP

Kind code of ref document: A1