CN220907678U - Phase-change temperature-control heat storage-based photovoltaic photo-thermal array-driven PEM water electrolysis hydrogen production system - Google Patents
Phase-change temperature-control heat storage-based photovoltaic photo-thermal array-driven PEM water electrolysis hydrogen production system Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 179
- 239000001257 hydrogen Substances 0.000 title claims abstract description 88
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 88
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 81
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 77
- 238000005338 heat storage Methods 0.000 title claims abstract description 31
- 230000008859 change Effects 0.000 claims abstract description 82
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 239000001301 oxygen Substances 0.000 claims description 12
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 11
- 238000013021 overheating Methods 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 abstract 2
- 239000003507 refrigerant Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 230000005611 electricity Effects 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 101001121408 Homo sapiens L-amino-acid oxidase Proteins 0.000 description 2
- 102100026388 L-amino-acid oxidase Human genes 0.000 description 2
- 230000002528 anti-freeze Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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Abstract
Description
技术领域Technical Field
本实用新型属于太阳能制氢技术领域，具体涉及一种基于相变控温蓄热的光伏光热阵列驱动PEM水电解制氢系统。The utility model belongs to the technical field of solar hydrogen production, and specifically relates to a photovoltaic thermal array driven PEM water electrolysis hydrogen production system based on phase change temperature control and heat storage.
背景技术Background technique
太阳能光伏制氢装置属于双重清洁能源转化系统，是国家现阶段发展的重点方向。然而此类系统在运行过程中，光伏板和制氢装置皆需要控制在适宜的工作温度，温度波动将会对光电转换、制氢过程产生不稳定影响，因此，如何合理设计温控系统、蓄热系统保证系统高效运行的同时，充分利用系统产生废热极其重要，光伏阵列、电解系统所需要的适宜温度范围差距较大，且二者散热需求不一致，因此，设计多种蓄热、冷却耦合技术以调控电解运行状态，降低系统运行波动性至关重要。Solar photovoltaic hydrogen production devices belong to dual clean energy conversion systems and are the focus of national development at this stage. However, during the operation of such systems, both photovoltaic panels and hydrogen production devices need to be controlled at appropriate operating temperatures. Temperature fluctuations will have an unstable effect on the photoelectric conversion and hydrogen production process. Therefore, it is extremely important to reasonably design the temperature control system and heat storage system to ensure efficient operation of the system while making full use of the waste heat generated by the system. The suitable temperature ranges required by photovoltaic arrays and electrolysis systems are quite different, and the heat dissipation requirements of the two are inconsistent. Therefore, it is crucial to design a variety of heat storage and cooling coupling technologies to regulate the electrolysis operation state and reduce the volatility of system operation.
实用新型内容Utility Model Content
为解决上述技术问题，本实用新型提供一种基于相变控温蓄热的光伏光热阵列驱动PEM水电解制氢系统，当白天需要进行蓄热的时候，相变水箱内的冷冻液依次通过第一液冷换热器以及第二液冷换热器回到相变水箱，将光伏阵列以及PEM水电解单元上的热量传递至相变水箱的内部进行储存，避免了光伏阵列以及PEM水电解单元过热；当夜晚需要为PEM水电解单元增温，保证系统处于适宜温度环境的时候，相变水箱直接通过第三管道将冷冻液注入第二液冷换热器，之后回流至相变水箱，为PEM水电解单元保温，避免了昼夜的温度差异导致生产环境温度波动过大。In order to solve the above technical problems, the utility model provides a photovoltaic thermal array driven PEM water electrolysis hydrogen production system based on phase change temperature control and heat storage. When heat storage is needed during the day, the refrigerant in the phase change water tank returns to the phase change water tank through the first liquid-cooled heat exchanger and the second liquid-cooled heat exchanger in turn, and the heat on the photovoltaic array and the PEM water electrolysis unit is transferred to the interior of the phase change water tank for storage, thereby avoiding overheating of the photovoltaic array and the PEM water electrolysis unit; when the PEM water electrolysis unit needs to be heated at night to ensure that the system is in a suitable temperature environment, the phase change water tank directly injects the refrigerant into the second liquid-cooled heat exchanger through the third pipeline, and then returns to the phase change water tank to keep the PEM water electrolysis unit warm, thereby avoiding excessive temperature fluctuations in the production environment due to temperature differences between day and night.
本实用新型采用的技术方案如下：The technical solution adopted by the utility model is as follows:
一种基于相变控温蓄热的光伏光热阵列驱动PEM水电解制氢系统，包括供电系统、热交换系统、电解水供液系统、制氢系统以及产物储存系统；所述供电系统与制氢系统电连接，用于为制氢系统供电；所述热交换系统分别与制氢系统以及供电系统通过管道连通，用于对制氢系统以及供电系统进行热交换；所述电解水供液系统与制氢系统通过管道连通，用于为制氢系统提供电解水；所述产物储存系统与制氢系统通过管道连通，用于储存制氢系统分解出的产物。A photovoltaic thermal array driven PEM water electrolysis hydrogen production system based on phase change temperature control and heat storage, comprising a power supply system, a heat exchange system, an electrolyzed water supply system, a hydrogen production system and a product storage system; the power supply system is electrically connected to the hydrogen production system and is used to supply power to the hydrogen production system; the heat exchange system is connected to the hydrogen production system and the power supply system through pipelines, respectively, and is used to perform heat exchange on the hydrogen production system and the power supply system; the electrolyzed water supply system is connected to the hydrogen production system through pipelines, and is used to provide electrolyzed water to the hydrogen production system; the product storage system is connected to the hydrogen production system through pipelines, and is used to store products decomposed by the hydrogen production system.
优选的，所述供电系统包括光伏阵列以及变压器，所述光伏阵列与变压器并联，所述变压器与所述制氢系统电连接。Preferably, the power supply system includes a photovoltaic array and a transformer, the photovoltaic array and the transformer are connected in parallel, and the transformer is electrically connected to the hydrogen production system.
采用上述技术方案，光伏阵列通过光伏发电板产生电能，产生的电能经过变压器进行电压转换为与制氢系统匹配，为其水电解提供电能。By adopting the above technical solution, the photovoltaic array generates electricity through photovoltaic panels, and the generated electricity is converted into a voltage matching the hydrogen production system through a transformer to provide electricity for its water electrolysis.
优选的，所述制氢系统包括相变壳体，相变壳体的内部间隔设置有数个PEM水电解单元，数个所述PEM水电解单元之间通过管道连通。Preferably, the hydrogen production system comprises a phase change shell, a plurality of PEM water electrolysis units are arranged at intervals inside the phase change shell, and the plurality of PEM water electrolysis units are connected by pipelines.
采用上述技术方案，PEM水电解单元用于水解产生氢气和氧气。By adopting the above technical solution, the PEM water electrolysis unit is used to generate hydrogen and oxygen by hydrolysis.
优选的，所述热交换系统包括相变水箱以及相变球，所述相变球设置于所述相变水箱的内部；所述相变水箱依次与所述供电系统以及制氢系统形成管道闭环回路，所述相变水箱与供电系统之间通过第一管道连通，所述供电系统与所述制氢系统之间通过第二管道连通；所述第一管道与第二管道之间通过第三管道连通。Preferably, the heat exchange system includes a phase change water tank and a phase change ball, and the phase change ball is arranged inside the phase change water tank; the phase change water tank forms a pipeline closed loop with the power supply system and the hydrogen production system in sequence, the phase change water tank and the power supply system are connected through a first pipeline, and the power supply system and the hydrogen production system are connected through a second pipeline; the first pipeline and the second pipeline are connected through a third pipeline.
采用上述技术方案，相变水箱的内部设有防冻液，相变球用于吸热和放热，相变球相变温度范围为45-50℃，储存和释放系统产生的不同温度和热量。Using the above technical solution, antifreeze is provided inside the phase change water tank, and the phase change ball is used to absorb and release heat. The phase change temperature range of the phase change ball is 45-50°C, storing and releasing the different temperatures and heat generated by the system.
优选的，所述光伏阵列的背光侧设置有第一液冷换热器，所述相变壳体的内部设置有第二液冷换热器，所述第二液冷换热器嵌设于数个所述PEM水电解单元之间，所述相变水箱依与第一液冷换热器、第二液冷换热器形成管道闭环回路。Preferably, a first liquid-cooled heat exchanger is provided on the backlight side of the photovoltaic array, a second liquid-cooled heat exchanger is provided inside the phase change shell, the second liquid-cooled heat exchanger is embedded between several of the PEM water electrolysis units, and the phase change water tank forms a pipeline closed loop with the first liquid-cooled heat exchanger and the second liquid-cooled heat exchanger.
采用上述技术方案，第一液冷换热器用于对光伏阵列的热量进行热交换；第二液冷换热器用于对PEM水电解单元之间的热量进行热交换，由于相变水箱依与第一液冷换热器、第二液冷换热器形成管道闭环回路，因此，当白天需要进行蓄热的时候，相变水箱内的冷冻液依次通过第一液冷换热器以及第二液冷换热器回到相变水箱，将光伏阵列以及PEM水电解单元上的热量传递至相变水箱的内部进行储存，避免了光伏阵列以及PEM水电解单元过热；当夜晚需要为PEM水电解单元增温，保证系统处于适宜温度环境的时候，相变水箱直接通过第三管道将冷冻液注入第二液冷换热器，之后回流至相变水箱，为PEM水电解单元保温，避免了昼夜的温度差异导致生产环境温度波动过大。With the above technical solution, the first liquid-cooled heat exchanger is used to exchange heat from the photovoltaic array; the second liquid-cooled heat exchanger is used to exchange heat between PEM water electrolysis units. Since the phase change water tank forms a pipeline closed loop with the first liquid-cooled heat exchanger and the second liquid-cooled heat exchanger, when heat storage is needed during the day, the refrigerant in the phase change water tank returns to the phase change water tank through the first liquid-cooled heat exchanger and the second liquid-cooled heat exchanger in turn, and the heat on the photovoltaic array and the PEM water electrolysis unit is transferred to the interior of the phase change water tank for storage, thereby avoiding overheating of the photovoltaic array and the PEM water electrolysis unit; when the PEM water electrolysis unit needs to be heated at night to ensure that the system is in a suitable temperature environment, the phase change water tank directly injects the refrigerant into the second liquid-cooled heat exchanger through the third pipeline, and then flows back to the phase change water tank to keep the PEM water electrolysis unit warm, thereby avoiding excessive temperature fluctuations in the production environment caused by temperature differences between day and night.
优选的，所述第一管道上靠近供电系统的一侧设置有第一阀门，所述第一管道上靠近相变水箱的一侧设置有第一水泵，所述第三管道上设置有第二阀门。Preferably, a first valve is provided on a side of the first pipeline close to the power supply system, a first water pump is provided on a side of the first pipeline close to the phase change water tank, and a second valve is provided on the third pipeline.
采用上述技术方案，白天需要储热的时候，打开第一阀门，关闭第二阀门；夜晚需要放热的时候，关闭第一阀门，打开第二阀门。By adopting the above technical solution, when heat storage is needed during the day, the first valve is opened and the second valve is closed; when heat release is needed at night, the first valve is closed and the second valve is opened.
优选的，所述电解水供液系统包括电解水箱，所述电解水箱的出液口通过管道与所述制氢系统连通，所述电解水箱与所述制氢系统连通的管道上设置有第二水泵；所述电解水箱的进液口处设置有第三阀门。Preferably, the electrolytic water supply system includes an electrolytic water tank, the liquid outlet of the electrolytic water tank is connected to the hydrogen production system through a pipeline, a second water pump is provided on the pipeline connecting the electrolytic water tank and the hydrogen production system; a third valve is provided at the liquid inlet of the electrolytic water tank.
采用上述技术方案，电解水箱为PEM水电解单元提供制氢的用水。By adopting the above technical solution, the electrolytic water tank provides water for hydrogen production to the PEM water electrolysis unit.
优选的，所述电解水箱设置于所述热交换系统的内部。Preferably, the electrolytic water tank is arranged inside the heat exchange system.
采用上述技术方案，电解水箱设置于所述热交换系统的内部，在白天蓄热的时候可以为电解水预热，经过预热的电解水降低了低温电解水温差冲击引起的电解波动，使相变蓄热过程与电解水的预热过程相融合，提升热量供给效率并降低低温电解水引起的电解性能波动。By adopting the above technical solution, the electrolytic water tank is arranged inside the heat exchange system, and can preheat the electrolytic water when storing heat during the day. The preheated electrolytic water reduces the electrolysis fluctuation caused by the temperature difference shock of the low-temperature electrolytic water, so that the phase change heat storage process is integrated with the preheating process of the electrolytic water, thereby improving the heat supply efficiency and reducing the electrolysis performance fluctuation caused by the low-temperature electrolytic water.
优选的，所述产物储存系统包括储氢罐以及储氧罐，所述储氢罐以及储氧罐分别与所述制氢系统通过管道连通。Preferably, the product storage system includes a hydrogen storage tank and an oxygen storage tank, and the hydrogen storage tank and the oxygen storage tank are respectively connected to the hydrogen production system through pipelines.
采用上述技术方案，储氢罐以及储氧罐分别用于储存制氢系统产生的氢气以及氧气。By adopting the above technical solution, the hydrogen storage tank and the oxygen storage tank are used to store the hydrogen and oxygen generated by the hydrogen production system respectively.
综上所述，由于采用了上述技术方案，本实用新型的有益效果是：In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:
1.第一液冷换热器用于对光伏阵列的热量进行热交换；第二液冷换热器用于对PEM水电解单元之间的热量进行热交换，由于相变水箱依与第一液冷换热器、第二液冷换热器形成管道闭环回路，因此，当白天需要进行蓄热的时候，相变水箱内的冷冻液依次通过第一液冷换热器以及第二液冷换热器回到相变水箱，将光伏阵列以及PEM水电解单元上的热量传递至相变水箱的内部进行储存，避免了光伏阵列以及PEM水电解单元过热；当夜晚需要为PEM水电解单元增温，保证系统处于适宜温度环境的时候，相变水箱直接通过第三管道将冷冻液注入第二液冷换热器，之后回流至相变水箱，为PEM水电解单元保温，避免了昼夜的温度差异导致生产环境温度波动过大。1. The first liquid-cooled heat exchanger is used to exchange heat from the photovoltaic array; the second liquid-cooled heat exchanger is used to exchange heat between PEM water electrolysis units. Since the phase-change water tank forms a pipeline closed loop with the first liquid-cooled heat exchanger and the second liquid-cooled heat exchanger, when heat storage is required during the day, the refrigerant in the phase-change water tank returns to the phase-change water tank through the first liquid-cooled heat exchanger and the second liquid-cooled heat exchanger in turn, and the heat on the photovoltaic array and the PEM water electrolysis unit is transferred to the interior of the phase-change water tank for storage, thereby avoiding overheating of the photovoltaic array and the PEM water electrolysis unit; when the PEM water electrolysis unit needs to be heated at night to ensure that the system is in a suitable temperature environment, the phase-change water tank directly injects the refrigerant into the second liquid-cooled heat exchanger through the third pipeline, and then flows back to the phase-change water tank to keep the PEM water electrolysis unit warm, thereby avoiding excessive temperature fluctuations in the production environment caused by temperature differences between day and night.
2.电解水箱设置于所述热交换系统的内部，在白天蓄热的时候可以为电解水预热，经过预热的电解水降低了低温电解水温差冲击引起的电解波动，使相变蓄热过程与电解水的预热过程相融合，提升热量供给效率并降低低温电解水引起的电解性能波动。2. The electrolytic water tank is arranged inside the heat exchange system, and can preheat the electrolytic water when storing heat during the day. The preheated electrolytic water reduces the electrolysis fluctuation caused by the temperature difference shock of the low-temperature electrolytic water, so that the phase change heat storage process is integrated with the preheating process of the electrolytic water, thereby improving the heat supply efficiency and reducing the electrolysis performance fluctuation caused by the low-temperature electrolytic water.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
本实用新型将通过例子并参照附图的方式说明，其中：The present invention will be described by way of examples with reference to the accompanying drawings, in which:
图1是本实用新型中一种基于相变控温蓄热的光伏光热阵列驱动PEM水电解制氢系统的连接结构示意图。FIG1 is a schematic diagram of the connection structure of a photovoltaic thermal array driven PEM water electrolysis hydrogen production system based on phase change temperature control and heat storage in the utility model.
附图标记Reference numerals
1-光伏阵列；2-第一水泵；3-相变水箱；4-相变球；501-第一阀门；502-第二阀门；6-PEM水电解单元；7-第二液冷换热器；8-相变壳体；9-变压器；10-储氢罐；11-储氧罐；12-第三阀门；13-电解水箱；14-第二水泵。1-photovoltaic array; 2-first water pump; 3-phase change water tank; 4-phase change ball; 501-first valve; 502-second valve; 6-PEM water electrolysis unit; 7-second liquid-cooled heat exchanger; 8-phase change shell; 9-transformer; 10-hydrogen storage tank; 11-oxygen storage tank; 12-third valve; 13-electrolysis water tank; 14-second water pump.
具体实施方式Detailed ways
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本申请一部分实施例，而不是全部的实施例。通常在此处附图中描述和标示出的本申请实施例的组件可以各种不同的配置来布置和设计。因此，以下对在附图中提供的本申请的实施例的详细描述并非旨在限制要求保护的本申请的范围，而是仅仅表示本申请的选定实施例。基于本申请的实施例，本领域技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都属于本申请保护的范围。In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application usually described and indicated in the drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.
在本申请实施例的描述中，需要说明的是，术语“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”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，或者是该实用新型产品使用时惯常摆放的方位或位置关系，仅是为了便于描述本申请和简化描述，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申请的限制。此外，术语“第一”、“第二”、“第三”等仅用于区分描述，而不能理解为指示或暗示相对重要性。In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or are the positions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
下面结合图1对本实用新型作详细说明。The utility model is described in detail below in conjunction with Figure 1.
一种基于相变控温蓄热的光伏光热阵列驱动PEM水电解制氢系统，参照附图1，包括供电系统、热交换系统、电解水供液系统、制氢系统以及产物储存系统；所述供电系统与制氢系统电连接，用于为制氢系统供电；所述热交换系统分别与制氢系统以及供电系统通过管道连通，用于对制氢系统以及供电系统进行热交换；所述电解水供液系统与制氢系统通过管道连通，用于为制氢系统提供电解水；所述产物储存系统与制氢系统通过管道连通，用于储存制氢系统分解出的产物。A photovoltaic thermal array driven PEM water electrolysis hydrogen production system based on phase change temperature control and heat storage, referring to FIG1, comprises a power supply system, a heat exchange system, an electrolyzed water supply system, a hydrogen production system and a product storage system; the power supply system is electrically connected to the hydrogen production system and is used to supply power to the hydrogen production system; the heat exchange system is respectively connected to the hydrogen production system and the power supply system through pipelines and is used to perform heat exchange on the hydrogen production system and the power supply system; the electrolyzed water supply system is connected to the hydrogen production system through pipelines and is used to provide electrolyzed water to the hydrogen production system; the product storage system is connected to the hydrogen production system through pipelines and is used to store products decomposed by the hydrogen production system.
本实施例中，所述供电系统包括光伏阵列1以及变压器9，所述光伏阵列1与变压器9并联，所述变压器9与所述制氢系统电连接，光伏阵列1通过光伏发电板产生电能，产生的电能经过变压器9进行电压转换为与制氢系统匹配，为其水电解提供电能。In this embodiment, the power supply system includes a photovoltaic array 1 and a transformer 9. The photovoltaic array 1 is connected in parallel with the transformer 9, and the transformer 9 is electrically connected to the hydrogen production system. The photovoltaic array 1 generates electrical energy through photovoltaic panels. The generated electrical energy is converted into a voltage matching the hydrogen production system through the transformer 9 to provide electrical energy for its water electrolysis.
本实施例中，所述制氢系统包括相变壳体8，相变壳体8的内部间隔设置有数个PEM水电解单元，数个所述PEM水电解单元之间通过管道连通，PEM水电解单元用于水解产生氢气和氧气。In this embodiment, the hydrogen production system includes a phase change shell 8, and a plurality of PEM water electrolysis units are arranged at intervals inside the phase change shell 8. The plurality of PEM water electrolysis units are connected by pipelines, and the PEM water electrolysis units are used to generate hydrogen and oxygen by hydrolysis.
本实施例中，所述热交换系统包括相变水箱3以及相变球4，所述相变球4设置于所述相变水箱3的内部；所述相变水箱3依次与所述供电系统以及制氢系统形成管道闭环回路，所述相变水箱3与供电系统之间通过第一管道连通，所述供电系统与所述制氢系统之间通过第二管道连通；所述第一管道与第二管道之间通过第三管道连通，相变水箱3的内部设有防冻液，相变球4用于吸热和放热，相变球4相变温度范围为45-50℃，储存和释放系统产生的不同温度和热量。In this embodiment, the heat exchange system includes a phase change water tank 3 and a phase change ball 4, and the phase change ball 4 is arranged inside the phase change water tank 3; the phase change water tank 3 forms a pipeline closed loop with the power supply system and the hydrogen production system in turn, the phase change water tank 3 and the power supply system are connected through a first pipeline, and the power supply system and the hydrogen production system are connected through a second pipeline; the first pipeline and the second pipeline are connected through a third pipeline, and antifreeze is provided inside the phase change water tank 3. The phase change ball 4 is used for absorbing and releasing heat. The phase change temperature range of the phase change ball 4 is 45-50°C, and the different temperatures and heat generated by the storage and release system are realized.
本实施例中，所述光伏阵列1的背光侧设置有第一液冷换热器，所述相变壳体8的内部设置有第二液冷换热器7，所述第二液冷换热器7嵌设于数个所述PEM水电解单元之间，所述相变水箱3依与第一液冷换热器、第二液冷换热器7形成管道闭环回路，第一液冷换热器用于对光伏阵列1的热量进行热交换；第二液冷换热器7用于对PEM水电解单元之间的热量进行热交换，由于相变水箱3依与第一液冷换热器、第二液冷换热器7形成管道闭环回路，因此，当白天需要进行蓄热的时候，相变水箱3内的冷冻液依次通过第一液冷换热器以及第二液冷换热器7回到相变水箱3，将光伏阵列1以及PEM水电解单元上的热量传递至相变水箱3的内部进行储存，避免了光伏阵列1以及PEM水电解单元过热；当夜晚需要为PEM水电解单元增温，保证系统处于适宜温度环境的时候，相变水箱3直接通过第三管道将冷冻液注入第二液冷换热器7，之后回流至相变水箱3，为PEM水电解单元保温，避免了昼夜的温度差异导致生产环境温度波动过大。In this embodiment, a first liquid-cooled heat exchanger is provided on the backlight side of the photovoltaic array 1, a second liquid-cooled heat exchanger 7 is provided inside the phase change housing 8, the second liquid-cooled heat exchanger 7 is embedded between the plurality of PEM water electrolysis units, the phase change water tank 3 forms a pipeline closed loop with the first liquid-cooled heat exchanger and the second liquid-cooled heat exchanger 7, the first liquid-cooled heat exchanger is used for heat exchange of the heat of the photovoltaic array 1; the second liquid-cooled heat exchanger 7 is used for heat exchange of the heat between the PEM water electrolysis units, since the phase change water tank 3 forms a pipeline closed loop with the first liquid-cooled heat exchanger and the second liquid-cooled heat exchanger 7, therefore, when it is needed during the day When storing heat, the refrigerant in the phase change water tank 3 returns to the phase change water tank 3 through the first liquid-cooled heat exchanger and the second liquid-cooled heat exchanger 7 in turn, and transfers the heat on the photovoltaic array 1 and the PEM water electrolysis unit to the interior of the phase change water tank 3 for storage, thereby avoiding overheating of the photovoltaic array 1 and the PEM water electrolysis unit; when it is necessary to increase the temperature of the PEM water electrolysis unit at night to ensure that the system is in a suitable temperature environment, the phase change water tank 3 directly injects the refrigerant into the second liquid-cooled heat exchanger 7 through the third pipeline, and then flows back to the phase change water tank 3 to keep the PEM water electrolysis unit warm, thereby avoiding excessive temperature fluctuations in the production environment due to temperature differences between day and night.
本实施例中，所述第一管道上靠近供电系统的一侧设置有第一阀门501，所述第一管道上靠近相变水箱3的一侧设置有第一水泵2，所述第三管道上设置有第二阀门502，白天需要储热的时候，打开第一阀门501，关闭第二阀门502；夜晚需要放热的时候，关闭第一阀门501，打开第二阀门502。In this embodiment, a first valve 501 is provided on the side of the first pipeline close to the power supply system, a first water pump 2 is provided on the side of the first pipeline close to the phase change water tank 3, and a second valve 502 is provided on the third pipeline. When heat storage is needed during the day, the first valve 501 is opened and the second valve 502 is closed; when heat release is needed at night, the first valve 501 is closed and the second valve 502 is opened.
本实施例中，所述电解水供液系统包括电解水箱13，所述电解水箱13的出液口通过管道与所述制氢系统连通，所述电解水箱13与所述制氢系统连通的管道上设置有第二水泵14；所述电解水箱13的进液口处设置有第三阀门12，电解水箱13为PEM水电解单元提供制氢的用水。In this embodiment, the electrolytic water supply system includes an electrolytic water tank 13, the liquid outlet of the electrolytic water tank 13 is connected to the hydrogen production system through a pipeline, and a second water pump 14 is arranged on the pipeline connecting the electrolytic water tank 13 and the hydrogen production system; a third valve 12 is arranged at the liquid inlet of the electrolytic water tank 13, and the electrolytic water tank 13 provides water for hydrogen production for the PEM water electrolysis unit.
本实施例中，所述电解水箱13设置于所述热交换系统的内部，电解水箱13设置于所述热交换系统的内部，在白天蓄热的时候可以为电解水预热，经过预热的电解水降低了低温电解水温差冲击引起的电解波动，使相变蓄热过程与电解水的预热过程相融合，提升热量供给效率并降低低温电解水引起的电解性能波动。In this embodiment, the electrolytic water tank 13 is arranged inside the heat exchange system. The electrolytic water tank 13 is arranged inside the heat exchange system. It can preheat the electrolytic water when storing heat during the day. The preheated electrolytic water reduces the electrolysis fluctuation caused by the temperature difference shock of the low-temperature electrolytic water, so that the phase change heat storage process is integrated with the preheating process of the electrolytic water, thereby improving the heat supply efficiency and reducing the electrolysis performance fluctuation caused by the low-temperature electrolytic water.
本实施例中，所述产物储存系统包括储氢罐10以及储氧罐11，所述储氢罐10以及储氧罐11分别与所述制氢系统通过管道连通，储氢罐10以及储氧罐11分别用于储存制氢系统产生的氢气以及氧气。In this embodiment, the product storage system includes a hydrogen storage tank 10 and an oxygen storage tank 11, which are respectively connected to the hydrogen production system through pipelines, and the hydrogen storage tank 10 and the oxygen storage tank 11 are respectively used to store hydrogen and oxygen generated by the hydrogen production system.
工作原理及使用过程：Working principle and usage process:
第一液冷换热器用于对光伏阵列1的热量进行热交换；第二液冷换热器7用于对PEM水电解单元之间的热量进行热交换，由于相变水箱3依与第一液冷换热器、第二液冷换热器7形成管道闭环回路，因此，当白天需要进行蓄热的时候，相变水箱3内的冷冻液依次通过第一液冷换热器以及第二液冷换热器7回到相变水箱3，将光伏阵列1以及PEM水电解单元上的热量传递至相变水箱3的内部进行储存，避免了光伏阵列1以及PEM水电解单元过热；当夜晚需要为PEM水电解单元增温，保证系统处于适宜温度环境的时候，相变水箱3直接通过第三管道将冷冻液注入第二液冷换热器7，之后回流至相变水箱3，为PEM水电解单元保温，避免了昼夜的温度差异导致生产环境温度波动过大；电解水箱13设置于所述热交换系统的内部，在白天蓄热的时候可以为电解水预热，经过预热的电解水降低了低温电解水温差冲击引起的电解波动，使相变蓄热过程与电解水的预热过程相融合，提升热量供给效率并降低低温电解水引起的电解性能波动。The first liquid-cooled heat exchanger is used to exchange heat with the photovoltaic array 1; the second liquid-cooled heat exchanger 7 is used to exchange heat between PEM water electrolysis units. Since the phase-change water tank 3 forms a pipeline closed loop with the first liquid-cooled heat exchanger and the second liquid-cooled heat exchanger 7, when heat storage is needed during the day, the refrigerant in the phase-change water tank 3 passes through the first liquid-cooled heat exchanger and the second liquid-cooled heat exchanger 7 in turn and returns to the phase-change water tank 3, transferring the heat on the photovoltaic array 1 and the PEM water electrolysis unit to the interior of the phase-change water tank 3 for storage, thereby avoiding overheating of the photovoltaic array 1 and the PEM water electrolysis unit; when heat storage is needed at night, the refrigerant in the phase-change water tank 3 passes through the first liquid-cooled heat exchanger and the second liquid-cooled heat exchanger 7 and returns to the phase-change water tank 3, thereby preventing ... When the water electrolysis unit is heated to ensure that the system is in a suitable temperature environment, the phase change water tank 3 directly injects the refrigerant into the second liquid-cooled heat exchanger 7 through the third pipe, and then flows back to the phase change water tank 3 to keep the PEM water electrolysis unit warm, avoiding excessive temperature fluctuations in the production environment caused by temperature differences between day and night; the electrolysis water tank 13 is arranged inside the heat exchange system, and can preheat the electrolyzed water when storing heat during the day. The preheated electrolyzed water reduces the electrolysis fluctuations caused by the temperature difference impact of the low-temperature electrolyzed water, so that the phase change heat storage process is integrated with the preheating process of the electrolyzed water, thereby improving the heat supply efficiency and reducing the electrolysis performance fluctuations caused by the low-temperature electrolyzed water.
需要说明的是：It should be noted:
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本实用新型。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本实用新型的精神或范围的情况下，在其它实施例中实现。因此，本实用新型将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
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