技术领域Technical Field
本发明涉及压缩空气储能技术领域，尤其是涉及一种用于压缩空气储能的分级压缩系统。The present invention relates to the technical field of compressed air energy storage, and in particular to a hierarchical compression system for compressed air energy storage.
背景技术Background Art
压缩空气储能技术是一种将电能转化为压缩空气储存起来，再通过膨胀释放能量以产生电力的技术。这种技术具有储能量大、效率高、环保、安全等优点，被认为具有广泛应用前景的大规模储能技术。Compressed air energy storage technology is a technology that converts electrical energy into compressed air for storage, and then releases energy through expansion to generate electricity. This technology has the advantages of large energy storage capacity, high efficiency, environmental protection, and safety, and is considered to be a large-scale energy storage technology with broad application prospects.
随着全球能源结构的转变和可再生能源的快速发展，电力系统面临着日益严重的供需不平衡、调峰调频等问题。为了解决这些问题，储能技术成为了一种重要的解决方案。传统的储能技术如电池储能、抽水蓄能等虽然在一定程度上缓解了电力系统的压力，但仍存在诸多不足，如储能密度低、寿命短、选址要求高等。因此，寻找一种高效、经济、环保的新型储能技术成为了当务之急。压缩空气储能技术应运而生。利用地下或废弃矿井等天然洞穴作为储气库，将电能转化为压缩空气储存起来。在需要发电时，将储存的压缩空气通过膨胀机释放能量，驱动发电机产生电力。With the transformation of the global energy structure and the rapid development of renewable energy, the power system is facing increasingly serious problems such as imbalance between supply and demand, peak load regulation and frequency regulation. In order to solve these problems, energy storage technology has become an important solution. Although traditional energy storage technologies such as battery energy storage and pumped storage have alleviated the pressure on the power system to a certain extent, they still have many shortcomings, such as low energy storage density, short life, and high site selection requirements. Therefore, it is imperative to find a new energy storage technology that is efficient, economical, and environmentally friendly. Compressed air energy storage technology came into being. Using natural caves such as underground or abandoned mines as gas storage reservoirs, electrical energy is converted into compressed air and stored. When power generation is needed, the stored compressed air releases energy through an expander to drive a generator to generate electricity.
首先，压缩空气储能技术的储能量远大于其他传统储能技术，可以满足大规模电力系统的调峰调频需求。其次，压缩空气储能技术的运行效率较高，能量损失较小。此外，压缩空气储能技术对环境影响较小，不会产生污染物。最后，与其他储能技术相比，压缩空气储能技术的安全性较高，因为其储气库通常位于地下或废弃矿井等地质条件稳定的地方。First, the storage capacity of compressed air energy storage technology is much greater than that of other traditional energy storage technologies, and it can meet the peak and frequency regulation needs of large-scale power systems. Secondly, compressed air energy storage technology has high operating efficiency and low energy loss. In addition, compressed air energy storage technology has little impact on the environment and does not produce pollutants. Finally, compared with other energy storage technologies, compressed air energy storage technology is safer because its gas storage is usually located in places with stable geological conditions such as underground or abandoned mines.
相关技术中，压缩空气储能的储能过程中利用可再生能源发电装置进行发电(例如，风能、水能等)，由于可再生能源发电装置本身特性导致发电装置输出功率处于波动状态，在现有用于压缩空气储能的压缩系统中，当可再生能源发电装置输出功率较小且不足以驱动现有压缩系统中的压缩机运行时，从而导致可再生能源发电装置输出功率较低时的电能浪费，造成弃电的问题。In the related technology, renewable energy power generation devices are used to generate electricity (for example, wind energy, hydropower, etc.) during the energy storage process of compressed air energy storage. Due to the characteristics of the renewable energy power generation devices themselves, the output power of the power generation devices is in a fluctuating state. In the existing compression system for compressed air energy storage, when the output power of the renewable energy power generation device is small and insufficient to drive the compressor in the existing compression system, it leads to waste of electricity when the output power of the renewable energy power generation device is low, causing the problem of power abandonment.
发明内容Summary of the invention
本发明旨在至少解决现有技术中存在的技术问题之一。为此，本发明的一个目的在于提出一种用于压缩空气储能的分级压缩系统，分级压缩系统根据电源的输出功率对气体分级压缩处理，减少弃电情况的发生。The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a hierarchical compression system for compressed air energy storage, which hierarchical compression system hierarchically compresses gas according to the output power of the power supply to reduce the occurrence of power abandonment.
根据本发明的用于压缩空气储能的分级压缩系统，包括：The hierarchical compression system for compressed air energy storage according to the present invention comprises:
第一压缩部、第二压缩部和存储装置，第一压缩部和第二压缩部均用于压缩空气，存储装置用于存储空气；A first compression part, a second compression part and a storage device, wherein the first compression part and the second compression part are both used for compressing air, and the storage device is used for storing air;
第一压缩部具有连通的第一端口和第二端口，第二压缩部具有连通的第三端口和第四端口，存储装置内形成有第一腔体和第二腔体，第一端口构造为分级压缩系统的介质进口，第二端口选择性地与第三端口或第一腔体连通，第三端口还选择性地与第一腔体连通，第四端口选择性地与第二腔体连通，且分级压缩系统的介质出口选择性地与第二腔体连通；The first compression part has a first port and a second port in communication, the second compression part has a third port and a fourth port in communication, a first cavity and a second cavity are formed in the storage device, the first port is configured as a medium inlet of the graded compression system, the second port is selectively communicated with the third port or the first cavity, the third port is also selectively communicated with the first cavity, the fourth port is selectively communicated with the second cavity, and the medium outlet of the graded compression system is selectively communicated with the second cavity;
第一压缩部和第二压缩部均适于与电源电连接，第一压缩部的工作功率小于第二压缩部的工作功率；The first compression part and the second compression part are both suitable for being electrically connected to a power source, and the working power of the first compression part is less than the working power of the second compression part;
其中，电源包括第一电源和第二电源，分级压缩系统具有第一模式、第二模式、第三模式和第四模式，在第一模式下，第一压缩部与第一电源电连接，第一压缩部工作、第二压缩部关机，且第二端口与第一腔体连通；在第二模式下，第二压缩部与第一电源电连接，第一压缩部关机、第二压缩部工作，且第三端口与第一腔体连通；在第三模式下，第一压缩部和第二压缩部均与第一电源电连接，第一压缩部和第二压缩部均工作，第二端口与第一腔体连通；在第四模式下，第一压缩部和第二压缩部与第一电源、第二电源均电连接，第一压缩部和第二压缩部均工作，且第二端口与第一腔体连通。Wherein, the power supply includes a first power supply and a second power supply, and the graded compression system has a first mode, a second mode, a third mode and a fourth mode. In the first mode, the first compression part is electrically connected to the first power supply, the first compression part is working, the second compression part is shut down, and the second port is connected to the first cavity; in the second mode, the second compression part is electrically connected to the first power supply, the first compression part is shut down, the second compression part is working, and the third port is connected to the first cavity; in the third mode, the first compression part and the second compression part are both electrically connected to the first power supply, the first compression part and the second compression part are both working, and the second port is connected to the first cavity; in the fourth mode, the first compression part and the second compression part are both electrically connected to the first power supply and the second power supply, the first compression part and the second compression part are both working, and the second port is connected to the first cavity.
根据本发明的用于压缩空气储能的分级压缩系统，不仅能够根据电源的输出功率对气体分级压缩处理，从而避免可再生能源发电装置输出功率较低时电能浪费，减少弃电情况的发生，并且分级压缩系统具有多种工作模式，以满足不同的供电需求。According to the graded compression system for compressed air energy storage of the present invention, not only can the gas be compressed and processed in a graded manner according to the output power of the power supply, thereby avoiding the waste of electric energy when the output power of the renewable energy power generation device is low and reducing the occurrence of power abandonment, but the graded compression system also has multiple working modes to meet different power supply needs.
在本发明的一些示例中，第一压缩部包括至少一组第一压缩换热组，第一压缩换热组包括连通的第一压缩机和第一换热器，空气经第一压缩机压缩处理后流入第一换热器换热处理；In some examples of the present invention, the first compression unit includes at least one first compression and heat exchange group, the first compression and heat exchange group includes a first compressor and a first heat exchanger that are connected, and the air flows into the first heat exchanger for heat exchange after being compressed by the first compressor;
第二压缩部包括至少一组第二压缩换热组，第二压缩换热组包括连通的第二压缩机和第二换热器，空气经第二压缩机压缩处理后流入第二换热器换热处理；The second compression unit includes at least one second compression and heat exchange group, the second compression and heat exchange group includes a second compressor and a second heat exchanger that are connected, and the air flows into the second heat exchanger for heat exchange after being compressed by the second compressor;
第一压缩机的工作功率小于第二压缩机的工作功率。The operating power of the first compressor is smaller than the operating power of the second compressor.
在本发明的一些示例中，第一压缩部包括多组依次串连的第一压缩换热组，在相邻两组第一压缩换热组中的一组第一压缩换热组的第一换热器与另一组第一压缩换热组的第一压缩机连通，且沿空气的流动方向，远离存储装置的第一压缩机的第一压缩进口构造为第一端口，靠近存储装置的第一换热器的第一换热出口构造为第二端口。In some examples of the present invention, the first compression section includes multiple groups of first compression heat exchange groups connected in series, and the first heat exchanger of one first compression heat exchange group in two adjacent groups of first compression heat exchange groups is connected to the first compressor of the other group of first compression heat exchange groups, and along the flow direction of air, the first compression inlet of the first compressor away from the storage device is configured as a first port, and the first heat exchange outlet of the first heat exchanger close to the storage device is configured as a second port.
在本发明的一些示例中，第二压缩部包括多组依次串连的第二压缩换热组，在相邻两组第二压缩换热组中的一组第二压缩换热组中的第二换热器与另一组第二压缩换热组的第二压缩机连通，且沿空气的流动方向，靠近存储装置一端的第二压缩机的第二压缩进口构造为第三端口，远离存储装置一端的第二换热器的第二换热出口构造为第四端口。In some examples of the present invention, the second compression section includes multiple groups of second compression heat exchange groups connected in series, and the second heat exchanger in one second compression heat exchange group between two adjacent groups of second compression heat exchange groups is connected to the second compressor of the other group of second compression heat exchange groups, and along the air flow direction, the second compression inlet of the second compressor close to one end of the storage device is configured as a third port, and the second heat exchange outlet of the second heat exchanger away from one end of the storage device is configured as a fourth port.
在本发明的一些示例中，用于压缩空气储能的分级压缩系统还包括：三通管、第一阀体和第二阀体，三通管的第一管口与第二端口连通，第一阀体连接在三通管的第二管口和存储装置间，通过打开和关闭第一阀体以使第二管口与第一腔体连通和断开，第二阀体连接在三通管的第三管口和第三端口间，通过打开和关闭第二阀体以使第三管口与第三端口连通和断开。In some examples of the present invention, the staged compression system for compressed air energy storage also includes: a tee, a first valve body and a second valve body, the first pipe port of the tee is connected to the second port, the first valve body is connected between the second pipe port of the tee and the storage device, the second pipe port is connected to and disconnected from the first cavity by opening and closing the first valve body, the second valve body is connected between the third pipe port and the third port of the tee, and the third pipe port is connected to and disconnected from the third port by opening and closing the second valve body.
在本发明的一些示例中，存储装置包括存储本体和第一隔板，存储本体内形成有存储空间，第一隔板设于存储空间内以将存储空间分隔为第一腔体和第二腔体，第一腔体与第二端口、第三端口均选择性地连通，第二腔体与第四端口选择性地连通。In some examples of the present invention, the storage device includes a storage body and a first partition, a storage space is formed in the storage body, the first partition is arranged in the storage space to separate the storage space into a first cavity and a second cavity, the first cavity is selectively connected to the second port and the third port, and the second cavity is selectively connected to the fourth port.
在本发明的一些示例中，存储本体形成有第一接口，第一接口与第一腔体连通，且第一接口与第二端口、第三端口均选择性地连通。In some examples of the present invention, the storage body is formed with a first interface, the first interface is communicated with the first cavity, and the first interface is selectively communicated with both the second port and the third port.
在本发明的一些示例中，存储装置还包括第二隔板，第二隔板设置于第二腔体内以将第二腔体分隔形成第一子腔体和第二子腔体，第一子腔体和第二子腔体均选择性地与第四端口连通，且介质出口与第一子腔体、第二子腔体均选择性地连通。In some examples of the present invention, the storage device also includes a second partition, which is arranged in the second cavity to separate the second cavity into a first sub-cavity and a second sub-cavity, the first sub-cavity and the second sub-cavity are selectively connected to the fourth port, and the medium outlet is selectively connected to the first sub-cavity and the second sub-cavity.
在本发明的一些示例中，存储本体形成有第二接口和第三接口，第二接口与第一子腔体连通，第三接口与第二子腔体连通，且第二接口和第三接口均与第四端口选择性地连通。In some examples of the present invention, the storage body is formed with a second interface and a third interface, the second interface is connected to the first sub-cavity, the third interface is connected to the second sub-cavity, and the second interface and the third interface are both selectively connected to the fourth port.
在本发明的一些示例中，存储本体形成有第四接口和第五接口，第四接口与第一子腔体连通，第五接口与第二子腔体连通，且第四接口和第五接口均选择性地与介质出口连通。In some examples of the present invention, the storage body is formed with a fourth interface and a fifth interface, the fourth interface is connected to the first sub-cavity, the fifth interface is connected to the second sub-cavity, and the fourth interface and the fifth interface are selectively connected to the medium outlet.
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
本发明的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：The above and/or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
图1是根据本发明实施例的分级压缩系统的结构示意图。FIG1 is a schematic diagram of the structure of a hierarchical compression system according to an embodiment of the present invention.
附图标记：Reference numerals:
分级压缩系统100；介质进口101；介质出口102；Staged compression system 100; medium inlet 101; medium outlet 102;
第一压缩部1；第一端口101a；第二端口102b；First compression part 1; first port 101a; second port 102b;
第一压缩换热组10；第一压缩换热组一111；第一压缩换热组二112；The first compression heat exchange group 10; the first compression heat exchange group one 111; the first compression heat exchange group two 112;
第一压缩机11；第一换热器12；A first compressor 11; a first heat exchanger 12;
第二压缩部2；第三端口201a；第四端口202b；Second compression part 2; third port 201a; fourth port 202b;
第二压缩换热组20；第二压缩换热组一211；第二压缩换热组二212；The second compression heat exchange group 20; the second compression heat exchange group one 211; the second compression heat exchange group two 212;
第二压缩机21；第二换热器22；A second compressor 21; a second heat exchanger 22;
存储装置3；第一腔体31；第二腔体32；第一子腔体321；第二子腔体322；Storage device 3; first cavity 31; second cavity 32; first sub-cavity 321; second sub-cavity 322;
存储本体30；第一隔板30a；第二隔板30b；Storage body 30; first partition 30a; second partition 30b;
第一接口301；第二接口302；第三接口303；第四接口304；第五接口305；First interface 301; second interface 302; third interface 303; fourth interface 304; fifth interface 305;
三通管4；第一阀体51；第二阀体52；第三阀体53；第四阀体54；第五阀体55；第六阀体56。Three-way pipe 4; first valve body 51; second valve body 52; third valve body 53; fourth valve body 54; fifth valve body 55; sixth valve body 56.
具体实施方式DETAILED DESCRIPTION
下面详细描述本发明的实施例，实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
下面参考图1描述根据本发明实施例的用于压缩空气储能的分级压缩系统100，分级压缩系统100包括第一压缩部1、第二压缩部2和存储装置3，第一压缩部1和第二压缩部2均用于压缩空气，存储装置3用于存储空气，第一压缩部1具有连通的第一端口101a和第二端口102b，第二压缩部2具有连通的第三端口201a和第四端口202b，存储装置3内形成有第一腔体31和第二腔体32，第一端口101a构造为分级压缩系统100的介质进口101，第二端口102b选择性地与第三端口201a或第一腔体31连通，第三端口201a还选择性地与第一腔体31连通，第四端口202b选择性地与第二腔体32连通，且分级压缩系统100的介质出口102选择性地与第二腔体32连通，第一压缩部1和第二压缩部2均适于与电源电连接，第一压缩部1的工作功率小于第二压缩部2的工作功率。The following describes a hierarchical compression system 100 for compressed air energy storage according to an embodiment of the present invention with reference to FIG1. The hierarchical compression system 100 includes a first compression unit 1, a second compression unit 2, and a storage device 3. The first compression unit 1 and the second compression unit 2 are both used to compress air. The storage device 3 is used to store air. The first compression unit 1 has a first port 101a and a second port 102b that are connected. The second compression unit 2 has a third port 201a and a fourth port 202b that are connected. A first cavity 31 and a second cavity 32 are formed in the storage device 3. Port 101a is constructed as the medium inlet 101 of the graded compression system 100, the second port 102b is selectively connected to the third port 201a or the first cavity 31, the third port 201a is also selectively connected to the first cavity 31, the fourth port 202b is selectively connected to the second cavity 32, and the medium outlet 102 of the graded compression system 100 is selectively connected to the second cavity 32, the first compression part 1 and the second compression part 2 are both suitable for being electrically connected to a power supply, and the working power of the first compression part 1 is less than the working power of the second compression part 2.
电源可以包括第一电源和第二电源，分级压缩系统100可以具有第一模式、第二模式、第三模式和第四模式，在第一模式下，第一压缩部1与第一电源电连接，第一压缩部1工作、第二压缩部2关机，且第二端口102b与第一腔体31连通；在第二模式下，第二压缩部2与第一电源电连接，第一压缩部1关机、第二压缩部2工作，且第三端口201a与第一腔体31连通；在第三模式下，第一压缩部1和第二压缩部2均与第一电源电连接，第一压缩部1和第二压缩部2均工作，第二端口102b与第一腔体31连通；在第四模式下，第一压缩部1和第二压缩部2与第一电源、第二电源均电连接，第一压缩部1和第二压缩部2均工作，且第二端口102b与第一腔体31连通。如图1所示，在一些实施例中，第一电源构造为可再生能源发电装置，例如，可再生能源发电装置构造为风力发电机或水力发电机等，由于可再生能源发电装置在发电的过程中易受到环境条件的影响，因此可再生能源发电装置所输出功率处于波动状态，第二电源构造为不再生能源发电装置，例如，不再生能源发电装置构造为煤电发电装置等。The power supply may include a first power supply and a second power supply, and the graded compression system 100 may have a first mode, a second mode, a third mode and a fourth mode. In the first mode, the first compression part 1 is electrically connected to the first power supply, the first compression part 1 is working, the second compression part 2 is shut down, and the second port 102b is connected to the first cavity 31; in the second mode, the second compression part 2 is electrically connected to the first power supply, the first compression part 1 is shut down, the second compression part 2 is working, and the third port 201a is connected to the first cavity 31; in the third mode, the first compression part 1 and the second compression part 2 are both electrically connected to the first power supply, the first compression part 1 and the second compression part 2 are both working, and the second port 102b is connected to the first cavity 31; in the fourth mode, the first compression part 1 and the second compression part 2 are both electrically connected to the first power supply and the second power supply, the first compression part 1 and the second compression part 2 are both working, and the second port 102b is connected to the first cavity 31. As shown in Figure 1, in some embodiments, the first power source is configured as a renewable energy power generation device, for example, the renewable energy power generation device is configured as a wind turbine or a hydroelectric generator, etc. Since the renewable energy power generation device is easily affected by environmental conditions during the power generation process, the output power of the renewable energy power generation device is in a fluctuating state, and the second power source is configured as a non-renewable energy power generation device, for example, the non-renewable energy power generation device is configured as a coal-fired power generation device, etc.
在一些实施例中，第一压缩部1和第二压缩部2与第一电源、第二电源可以均连接，在第一模式下，第一电源仅为第一压缩部1供电，第二电源不为第一压缩部1和第二压缩部2供电；在第二模式下，第一电源仅为第二压缩部2供电，第二电源不为第一压缩部1和第二压缩部2供电；在第三模式下，第一电源为第一压缩部1和第二压缩部2供电，第二电源不为第一压缩部1和第二压缩部2供电；在第四模式下，第一电源和第二电源共同为第一压缩部1和第二压缩部2供电。In some embodiments, the first compression section 1 and the second compression section 2 can be connected to both the first power supply and the second power supply. In the first mode, the first power supply only supplies power to the first compression section 1, and the second power supply does not supply power to the first compression section 1 and the second compression section 2; in the second mode, the first power supply only supplies power to the second compression section 2, and the second power supply does not supply power to the first compression section 1 and the second compression section 2; in the third mode, the first power supply supplies power to the first compression section 1 and the second compression section 2, and the second power supply does not supply power to the first compression section 1 and the second compression section 2; in the fourth mode, the first power supply and the second power supply jointly supply power to the first compression section 1 and the second compression section 2.
在一些实施例中，当第一电源所输出功率仅能够驱动第一压缩部1启动工作，分级压缩系统100切换为第一模式，此时空气通过第一端口101a流入第一压缩部1进行压缩处理，由于第一压缩部1的工作功率小于第二压缩部2的工作功率，因此空气经过第一压缩部1压缩处理后形成中压空气，且第二端口102b与第一腔体31连通，以使中压空气通过第二端口102b流入存储装置3的第一腔体31进行存储。In some embodiments, when the power output by the first power supply is only able to drive the first compression part 1 to start working, the graded compression system 100 switches to the first mode. At this time, the air flows into the first compression part 1 through the first port 101a for compression processing. Since the working power of the first compression part 1 is less than the working power of the second compression part 2, the air is compressed by the first compression part 1 to form medium-pressure air, and the second port 102b is connected to the first cavity 31, so that the medium-pressure air flows into the first cavity 31 of the storage device 3 through the second port 102b for storage.
在一些实施例中，当第一电源所输出功率仅能够驱动第二压缩部2工作，分级压缩系统100切换为第二模式，此时第三端口201a与第一腔体31连通，第一腔体31内的中压空气通过第三端口201a流入第二压缩部2进行二次压缩以形成高压空气，且第四端口202b与第二腔体32连通，以使高压空气通过第四端口202b流入存储装置3的第二腔体32进行存储，另外，分级压缩系统100的介质出口102与第二腔体32连通时，存储于第二腔体32中的高压空气可以通过介质出口102排出分级压缩系统100，介质出口102适于与膨胀机连通，以使高压空气可以输入膨胀机，高压气体通过膨胀机释放能量，驱动发电机产生电力。In some embodiments, when the power output by the first power supply is only able to drive the second compression unit 2 to operate, the graded compression system 100 switches to the second mode. At this time, the third port 201a is connected to the first cavity 31, and the medium-pressure air in the first cavity 31 flows into the second compression unit 2 through the third port 201a for secondary compression to form high-pressure air, and the fourth port 202b is connected to the second cavity 32, so that the high-pressure air flows into the second cavity 32 of the storage device 3 through the fourth port 202b for storage. In addition, when the medium outlet 102 of the graded compression system 100 is connected to the second cavity 32, the high-pressure air stored in the second cavity 32 can be discharged from the graded compression system 100 through the medium outlet 102. The medium outlet 102 is suitable for connecting to the expander so that the high-pressure air can be input into the expander. The high-pressure gas releases energy through the expander to drive the generator to generate electricity.
在一些实施例中，当第一电源能够同时驱动第一压缩部1和第二压缩部2工作，分级压缩系统100切换为第三模式，此时第三端口201a与第二端口102b、第一腔体31均连通，空气先经过第一压缩部1进行一次压缩处理以形成中压空气，而后中压空气通过第三端口201a流入第二压缩部2进行二次压缩处理以形成高压空气，经过第二压缩部2压缩处理后的高压空气通过第四端口202b流入存储装置3的第二腔体32进行存储。In some embodiments, when the first power supply can drive the first compression part 1 and the second compression part 2 to work at the same time, the graded compression system 100 switches to the third mode. At this time, the third port 201a is connected to the second port 102b and the first cavity 31. The air first passes through the first compression part 1 for a compression treatment to form medium-pressure air, and then the medium-pressure air flows into the second compression part 2 through the third port 201a for a second compression treatment to form high-pressure air. The high-pressure air after compression treatment by the second compression part 2 flows into the second cavity 32 of the storage device 3 through the fourth port 202b for storage.
在一些实施例中，当第一电源和第二电源所共同输出的电能能够同时驱动第一压缩部1和第二压缩部2工作，分级压缩系统100切换为第四模式，此时第三端口201a与第一腔体31连通，此时第二端口102b与第三端口201a连通，且第二端口102b与第一腔体31断开，第三端口201a与第一腔体31连通时，空气依次经过第一压缩部1和第二压缩部2进行压缩处理以形成高压空气，高压空气通过第四端口202b流入存储装置3的第二腔体32进行存储。In some embodiments, when the electric energy jointly output by the first power supply and the second power supply can drive the first compression part 1 and the second compression part 2 to work at the same time, the graded compression system 100 switches to the fourth mode. At this time, the third port 201a is connected to the first cavity 31, and the second port 102b is connected to the third port 201a, and the second port 102b is disconnected from the first cavity 31. When the third port 201a is connected to the first cavity 31, the air is compressed in turn through the first compression part 1 and the second compression part 2 to form high-pressure air, and the high-pressure air flows into the second cavity 32 of the storage device 3 through the fourth port 202b for storage.
由此，根据本发明实施例的分级压缩系统100，不仅能够根据电源的输出功率对气体分级压缩处理，从而避免可再生能源发电装置输出功率较低时电能浪费，减少弃电情况的发生，并且分级压缩系统100具有多种工作模式，以满足不同的供电需求。Therefore, according to the graded compression system 100 of the embodiment of the present invention, not only can the gas be compressed and processed in a graded manner according to the output power of the power supply, thereby avoiding the waste of electric energy when the output power of the renewable energy power generation device is low and reducing the occurrence of power abandonment, but the graded compression system 100 also has multiple working modes to meet different power supply needs.
在本发明的一些实施例中，如图1所示，第一压缩部1包括至少一组第一压缩换热组10，第一压缩换热组10包括连通的第一压缩机11和第一换热器12，空气经第一压缩机11压缩处理后流入第一换热器12换热处理，第二压缩部2包括至少一组第二压缩换热组20，第二压缩换热组20包括连通的第二压缩机21和第二换热器22，空气经第二压缩机21压缩处理后流入第二换热器22换热处理，第一压缩机11的工作功率小于第二压缩机21的工作功率，以使空气经过第一压缩部1压缩处理后形成中压空气，中压空气经过第一压缩部1压缩处理后形成高压空气，并且由于第一压缩机11的工作功率小于第二压缩机21的工作功率，以使分级压缩系统100能够对气体分级压缩处理，避免可再生能源发电装置输出功率较低时电能浪费，减少弃电情况的发生。In some embodiments of the present invention, as shown in Figure 1, the first compression part 1 includes at least one first compression and heat exchange group 10, the first compression and heat exchange group 10 includes a connected first compressor 11 and a first heat exchanger 12, and the air flows into the first heat exchanger 12 for heat exchange after being compressed by the first compressor 11. The second compression part 2 includes at least one second compression and heat exchange group 20, the second compression and heat exchange group 20 includes a connected second compressor 21 and a second heat exchanger 22, and the air flows into the second heat exchanger 22 for heat exchange after being compressed by the second compressor 21. The working power of the first compressor 11 is less than the working power of the second compressor 21, so that the air is compressed by the first compression part 1 to form medium-pressure air, and the medium-pressure air is compressed by the first compression part 1 to form high-pressure air. In addition, since the working power of the first compressor 11 is less than the working power of the second compressor 21, the staged compression system 100 can perform staged compression on the gas, thereby avoiding energy waste when the output power of the renewable energy power generation device is low, and reducing the occurrence of power abandonment.
在本发明的一些实施例中，如图1所示，第一压缩部1包括多组依次串连的第一压缩换热组10，在相邻两组第一压缩换热组10中的一组第一压缩换热组10的第一换热器12与另一组第一压缩换热组10的第一压缩机11连通，且沿空气的流动方向，远离存储装置3的第一压缩机11的第一压缩进口构造为第一端口101a，靠近存储装置3的第一换热器12的第一换热出口构造为第二端口102b。In some embodiments of the present invention, as shown in Figure 1, the first compression part 1 includes a plurality of first compression heat exchange groups 10 connected in series in sequence, and the first heat exchanger 12 of one first compression heat exchange group 10 in two adjacent groups of first compression heat exchange groups 10 is connected to the first compressor 11 of the other group of first compression heat exchange group 10, and along the flow direction of air, the first compression inlet of the first compressor 11 away from the storage device 3 is configured as the first port 101a, and the first heat exchange outlet of the first heat exchanger 12 close to the storage device 3 is configured as the second port 102b.
如图1所示，第一压缩部1包括两组串连的第一压缩换热组10，两组串连的第一压缩换热组10可以构造为第一压缩换热组一111和第一压缩换热组二112，第一压缩换热组一111的第一压缩机11的第一压缩进口可以构造为第一端口101a，且第一压缩换热组一111的第一压缩机11的第一压缩出口与第一压缩换热组一111的第一换热器12的第一换热进口连通，以使空气在第一压缩部1中进行一次压缩及一次换热，并且第一压缩换热组一111的第一换热器12的第一换热出口与第一压缩换热组二112的第一压缩机11的第一压缩进口连通，以使第一压缩换热组一111和第一压缩换热组二112串联，在第一压缩换热组二112中，第一压缩换热组二112的第一压缩机11的第一压缩出口与第一压缩换热组二112第一换热器12的第一换热进口连通，且第一压缩换热组二112的第一换热器12的第一换热出口可以构造为第二端口102b，以使空气在第一压缩部1中进行两次压缩及两次换热，使得经过第一压缩部1压缩处理的中压空气能够满足输入第二压缩部2的要求。As shown in FIG1 , the first compression section 1 includes two groups of first compression heat exchange groups 10 connected in series. The two groups of first compression heat exchange groups 10 connected in series can be constructed as a first compression heat exchange group 1 111 and a first compression heat exchange group 2 112. The first compression inlet of the first compressor 11 of the first compression heat exchange group 1 111 can be constructed as a first port 101a, and the first compression outlet of the first compressor 11 of the first compression heat exchange group 1 111 is connected to the first heat exchange inlet of the first heat exchanger 12 of the first compression heat exchange group 1 111, so that the air is compressed and heat exchanged once in the first compression section 1, and the first heat exchange outlet of the first heat exchanger 12 of the first compression heat exchange group 1 111 is connected to the first heat exchange inlet of the first heat exchanger 12 of the first compression heat exchange group 1 The first compression inlet of the first compressor 11 of the compression heat exchange group 112 is connected, so that the first compression heat exchange group 111 and the first compression heat exchange group 112 are connected in series. In the first compression heat exchange group 112, the first compression outlet of the first compressor 11 of the first compression heat exchange group 112 is connected to the first heat exchange inlet of the first heat exchanger 12 of the first compression heat exchange group 112, and the first heat exchange outlet of the first heat exchanger 12 of the first compression heat exchange group 112 can be constructed as a second port 102b, so that the air is compressed and heat exchanged twice in the first compression part 1, so that the medium-pressure air compressed by the first compression part 1 can meet the requirements of inputting into the second compression part 2.
在本发明的一些实施例中，如图1所示，第二压缩部2包括多组依次串连的第二压缩换热组20，在相邻两组第二压缩换热组20中的一组第二压缩换热组20中的第二换热器22与另一组第二压缩换热组20的第二压缩机21连通，且沿空气的流动方向，靠近存储装置3一端的第二压缩机21的第二压缩进口构造为第三端口201a，远离存储装置3一端的第二换热器22的第二换热出口构造为第四端口202b。In some embodiments of the present invention, as shown in Figure 1, the second compression section 2 includes a plurality of second compression heat exchange groups 20 connected in series in sequence, and the second heat exchanger 22 in one second compression heat exchange group 20 of two adjacent second compression heat exchange groups 20 is connected to the second compressor 21 of the other second compression heat exchange group 20, and along the air flow direction, the second compression inlet of the second compressor 21 close to one end of the storage device 3 is configured as a third port 201a, and the second heat exchange outlet of the second heat exchanger 22 away from one end of the storage device 3 is configured as a fourth port 202b.
如图1所示，第二压缩部2包括两组串连的第二压缩换热组20，两组串连的第二压缩换热组20可以构造为第二压缩换热组一211和第二压缩换热组二212，第二压缩换热组一211的第二压缩机21的第二压缩进口可以构造为第三端口201a，且第二压缩换热组一211的第二压缩机21的第二压缩出口与第二压缩换热组二212的第二换热器22的第二换热进口连通，以使中压空气在第二压缩部2中进行一次压缩及一次换热，并且第二压缩换热组一211的第二换热器22的第二换热出口与第二压缩换热组二212的第二压缩机21的第二压缩进口连通，以使第二压缩换热组一211和第二压缩换热组二212串联，在第二压缩换热组二212中，第二压缩换热组二212的第二压缩机21的第二压缩出口与第二压缩换热组二212第二换热器22的第二换热进口连通，且第二压缩换热组二212的第一换热器12的第二换热出口可以构造为第四端口202b，以使中压空气在第二压缩部2中进行两次压缩及两次换热，使得经过第二压缩部2压缩处理的高压空气能够满足输入膨胀机的要求。As shown in FIG1 , the second compression section 2 includes two sets of second compression heat exchange groups 20 connected in series. The two sets of second compression heat exchange groups 20 connected in series can be constructed as a second compression heat exchange group 1 211 and a second compression heat exchange group 212. The second compression inlet of the second compressor 21 of the second compression heat exchange group 1 211 can be constructed as a third port 201a, and the second compression outlet of the second compressor 21 of the second compression heat exchange group 1 211 is connected to the second heat exchange inlet of the second heat exchanger 22 of the second compression heat exchange group 212, so that the medium-pressure air is compressed and heat-exchanged once in the second compression section 2, and the second heat exchange outlet of the second heat exchanger 22 of the second compression heat exchange group 1 211 is connected to the second heat exchange outlet of the second heat exchanger 22 of the second compression heat exchange group 212. The second compression inlet of the second compressor 21 of the second compression heat exchange group 212 is connected, so that the second compression heat exchange group 1 211 and the second compression heat exchange group 212 are connected in series. In the second compression heat exchange group 212, the second compression outlet of the second compressor 21 of the second compression heat exchange group 212 is connected to the second heat exchange inlet of the second heat exchanger 22 of the second compression heat exchange group 212, and the second heat exchange outlet of the first heat exchanger 12 of the second compression heat exchange group 212 can be constructed as a fourth port 202b, so that the medium-pressure air is compressed and heat-exchanged twice in the second compression part 2, so that the high-pressure air compressed by the second compression part 2 can meet the requirements of the input expansion machine.
在本发明的一些实施例中，如图1所示，分级压缩系统100可以还包括三通管4、第一阀体51和第二阀体52，三通管4的第一管口与第二端口102b连通，第一阀体51连接在三通管4的第二管口和存储装置3间，通过打开和关闭第一阀体51以使第二管口与第一腔体31连通和断开，第二阀体52连接在三通管4的第三管口和第三端口201a间，通过打开和关闭第二阀体52以使第三管口与第三端口201a连通和断开。In some embodiments of the present invention, as shown in Figure 1, the staged compression system 100 may also include a three-way pipe 4, a first valve body 51 and a second valve body 52, the first pipe port of the three-way pipe 4 is connected to the second port 102b, the first valve body 51 is connected between the second pipe port of the three-way pipe 4 and the storage device 3, and the second pipe port is connected to and disconnected from the first cavity 31 by opening and closing the first valve body 51, and the second valve body 52 is connected between the third pipe port of the three-way pipe 4 and the third port 201a, and the third pipe port is connected to and disconnected from the third port 201a by opening and closing the second valve body 52.
如图1所示，在一些实施例中，分级压缩系统100为第一模式时，第一阀体51打开、第二阀体52关闭，以使第二端口102b与第一腔体31连通，第二端口102b与第三端口201a断开，以使经过第一压缩部1压缩处理的中压空气存储于第一腔体31中。As shown in Figure 1, in some embodiments, when the staged compression system 100 is in the first mode, the first valve body 51 is opened and the second valve body 52 is closed, so that the second port 102b is connected to the first cavity 31, and the second port 102b is disconnected from the third port 201a, so that the medium-pressure air compressed by the first compression part 1 is stored in the first cavity 31.
如图1所示，在一些实施例中，分级压缩系统100为第二模式时，第一阀体51和第二阀体52均打开，以使第三端口201a与第一腔体31连通，从而使得存储于第一腔体31内的中压空气通过第三端口201a流入第二压缩部2进行二次压缩以形成高压空气。As shown in Figure 1, in some embodiments, when the staged compression system 100 is in the second mode, the first valve body 51 and the second valve body 52 are both opened to connect the third port 201a with the first cavity 31, so that the medium-pressure air stored in the first cavity 31 flows into the second compression part 2 through the third port 201a for secondary compression to form high-pressure air.
如图1所示，在一些实施例中，分级压缩系统100为第三模式时，第二阀体52打开，以使第三端口201a与第二端口102b连通，从而使得第一压缩部1的中压空气通过第三端口201a流入第二压缩部2进行二次压缩。As shown in FIG. 1 , in some embodiments, when the staged compression system 100 is in the third mode, the second valve body 52 is opened to connect the third port 201a with the second port 102b, so that the medium-pressure air of the first compression part 1 flows into the second compression part 2 through the third port 201a for secondary compression.
如图1所示，在一些实施例中，分级压缩系统100为第四模式时，第二阀体52打开，以使第三端口201a与第二端口102b连通，从而使得第一压缩部1的中压空气通过第三端口201a流入第二压缩部2进行二次压缩。As shown in FIG. 1 , in some embodiments, when the staged compression system 100 is in the fourth mode, the second valve body 52 is opened to connect the third port 201a with the second port 102b, so that the medium-pressure air of the first compression part 1 flows into the second compression part 2 through the third port 201a for secondary compression.
在本发明的一些实施例中，如图1所示，存储装置3包括存储本体30和第一隔板30a，存储本体30内形成有存储空间，第一隔板30a设于存储空间内以将存储空间分隔为第一腔体31和第二腔体32，第一腔体31与第二端口102b、第三端口201a均选择性地连通，第二腔体32与第四端口202b选择性地连通，以使存储装置3可以分别存储第一压缩部1所产生的中压空气和第二压缩部2所产生的高压空气，同时通过第一腔体31与第二端口102b、第三端口201a均选择性地连通、第二腔体32与第四端口202b选择性地连通，以使分级压缩系统100可以具有第一模式、第二模式、第三模式和第四模式。In some embodiments of the present invention, as shown in Figure 1, the storage device 3 includes a storage body 30 and a first partition 30a, a storage space is formed in the storage body 30, the first partition 30a is arranged in the storage space to separate the storage space into a first cavity 31 and a second cavity 32, the first cavity 31 is selectively connected with the second port 102b and the third port 201a, and the second cavity 32 is selectively connected with the fourth port 202b, so that the storage device 3 can store the medium-pressure air generated by the first compression part 1 and the high-pressure air generated by the second compression part 2, respectively. At the same time, the first cavity 31 is selectively connected with the second port 102b and the third port 201a, and the second cavity 32 is selectively connected with the fourth port 202b, so that the graded compression system 100 can have a first mode, a second mode, a third mode and a fourth mode.
在本发明的一些实施例中，如图1所示，存储本体30形成有第一接口301，第一接口301与第一腔体31连通，且第一接口301与第二端口102b、第三端口201a均选择性地连通，如图1所示，在一些实施例中，第一阀体51连接在三通管4的第二管口和第一接口301之间，通过打开和关闭第一阀体51以使第二管口与第一腔体31连通和断开，从而可以实现第二端口102b与第一腔体31选择性地连通的效果，以及可以实现第三端口201a与第一腔体31选择性地连通的效果。In some embodiments of the present invention, as shown in FIG. 1 , the storage body 30 is formed with a first interface 301, the first interface 301 is connected to the first cavity 31, and the first interface 301 is selectively connected to the second port 102b and the third port 201a. As shown in FIG. 1 , in some embodiments, the first valve body 51 is connected between the second pipe port of the three-way pipe 4 and the first interface 301. By opening and closing the first valve body 51 to connect and disconnect the second pipe port with the first cavity 31, the effect of selectively connecting the second port 102b with the first cavity 31 and the effect of selectively connecting the third port 201a with the first cavity 31 can be achieved.
在本发明的一些实施例中，如图1所示，存储装置3还包括可以第二隔板30b，第二隔板30b设置于第二腔体32内以将第二腔体32分隔形成第一子腔体321和第二子腔体322，第一子腔体321和第二子腔体322均选择性地与第四端口202b连通，且介质出口102与第一子腔体321、第二子腔体322均选择性地连通。In some embodiments of the present invention, as shown in Figure 1, the storage device 3 also includes a second partition 30b, which is arranged in the second cavity 32 to separate the second cavity 32 into a first sub-cavity 321 and a second sub-cavity 322, and the first sub-cavity 321 and the second sub-cavity 322 are both selectively connected to the fourth port 202b, and the medium outlet 102 is selectively connected to the first sub-cavity 321 and the second sub-cavity 322.
如图1所示，在一些实施例中，由于在分级压缩系统100工作的过程中，第二腔体32中的高压空气通过介质出口102排出第二腔体32的过程中，因在该过程中需保证在同一个腔体中不能同时存在进气和排气的工况，因此，第二隔板30b以将第二腔体32分隔形成第一子腔体321和第二子腔体322，当第一子腔体321为进气状态时，则第四端口202b与第二子腔体322断开，以使第二压缩部2所形成的高压空气仅流入第一子腔体321中，第二子腔体322中的高压空气可以通过介质出口102排出分级压缩系统100并输入膨胀机，或者是，当第二子腔体322为进气状态时，则第四端口202b与第一子腔体321断开，以使第二压缩部2所形成的高压空气仅流入第二子腔体322中，第一子腔体321中的高压空气可以通过介质出口102排出分级压缩系统100并输入膨胀机，由此，根据本发明实施例的存储装置3，能够满足高压空气同时流入及流出第二腔体32的需求，从而使得第二压缩部2可以不间断地工作，进而有利于提升分级压缩系统100的工作效率。As shown in FIG. 1 , in some embodiments, during the operation of the staged compression system 100, the high-pressure air in the second cavity 32 is discharged from the second cavity 32 through the medium outlet 102. Since it is necessary to ensure that the same cavity cannot have both intake and exhaust conditions during the process, the second partition plate 30b is used to separate the second cavity 32 into a first sub-cavity 321 and a second sub-cavity 322. When the first sub-cavity 321 is in the intake state, the fourth port 202b is disconnected from the second sub-cavity 322, so that the high-pressure air formed by the second compression part 2 only flows into the first sub-cavity 321, and the high-pressure air in the second sub-cavity 322 can be discharged through the medium outlet 102. The medium outlet 102 discharges the graded compression system 100 and inputs it into the expander, or, when the second sub-cavity 322 is in the air intake state, the fourth port 202b is disconnected from the first sub-cavity 321, so that the high-pressure air formed by the second compression part 2 only flows into the second sub-cavity 322, and the high-pressure air in the first sub-cavity 321 can be discharged from the graded compression system 100 through the medium outlet 102 and input into the expander. Therefore, the storage device 3 according to the embodiment of the present invention can meet the demand of high-pressure air flowing into and out of the second cavity 32 at the same time, so that the second compression part 2 can work uninterruptedly, which is beneficial to improve the working efficiency of the graded compression system 100.
在一些实施例中，存储装置3的容积为4万立方米，也可以理解为，第一腔体31和第二腔体32的总容积为四万立方米，其中第一腔体31的容积为Q1、第一子腔体321的容积为Q2、第二子腔体322容积为Q3，满足关系式，Q1:Q2:Q3＝1:8:1，另外，第一腔体31的最大储气压力值可以为6MPa，第一子腔体321的最大储气压力值和第二子腔体322的最大储气压力值均为10MPa。In some embodiments, the volume of the storage device 3 is 40,000 cubic meters, which can also be understood as the total volume of the first cavity 31 and the second cavity 32 is 40,000 cubic meters, wherein the volume of the first cavity 31 is Q1, the volume of the first sub-cavity 321 is Q2, and the volume of the second sub-cavity 322 is Q3, satisfying the relationship, Q1:Q2:Q3=1:8:1, in addition, the maximum gas storage pressure value of the first cavity 31 can be 6MPa, and the maximum gas storage pressure value of the first sub-cavity 321 and the maximum gas storage pressure value of the second sub-cavity 322 are both 10MPa.
在本发明的一些实施例中，如图1所示，存储本体30形成有第二接口302和第三接口303，第二接口302与第一子腔体321连通，第三接口303与第二子腔体322连通，且第二接口302和第三接口303均与第四端口202b选择性地连通，通过第四端口202b分别与第二接口302、第三接口303选择性的连通，实现第四端口202b与第一子腔体321或第二子腔体322连通的效果。In some embodiments of the present invention, as shown in Figure 1, the storage body 30 is formed with a second interface 302 and a third interface 303, the second interface 302 is connected to the first sub-cavity 321, the third interface 303 is connected to the second sub-cavity 322, and the second interface 302 and the third interface 303 are both selectively connected to the fourth port 202b. The fourth port 202b is selectively connected to the second interface 302 and the third interface 303 respectively, so as to achieve the effect of the fourth port 202b being connected to the first sub-cavity 321 or the second sub-cavity 322.
如图1所示，在一些实施例中，分级压缩系统100还可以包括第三阀体53，第三阀体53连接在第四端口202b和第二接口302之间，通过打开和关闭第三阀体53，实现第四端口202b和第一子腔体321选择性地连通的效果，分级压缩系统100还可以包括第四阀体54，第四阀体54连接在第四端口202b和第三接口303之间，通过打开和关闭第四阀体54，实现第四端口202b和第二子腔体322选择性地连通的效果。As shown in Figure 1, in some embodiments, the staged compression system 100 may also include a third valve body 53, which is connected between the fourth port 202b and the second interface 302. By opening and closing the third valve body 53, the effect of selectively connecting the fourth port 202b and the first sub-chamber 321 is achieved. The staged compression system 100 may also include a fourth valve body 54, which is connected between the fourth port 202b and the third interface 303. By opening and closing the fourth valve body 54, the effect of selectively connecting the fourth port 202b and the second sub-chamber 322 is achieved.
在本发明的一些实施例中，如图1所示，存储本体30形成有第四接口304和第五接口305，第四接口304与第一子腔体321连通，第五接口305与第二子腔体322连通，且第四接口304和第五接口305均选择性地与介质出口102连通，通过介质出口102分别与第四接口304、第五接口305选择性的连通，实现介质出口102与第一子腔体321或第二子腔体322连通的效果。In some embodiments of the present invention, as shown in Figure 1, the storage body 30 is formed with a fourth interface 304 and a fifth interface 305, the fourth interface 304 is connected to the first sub-cavity 321, the fifth interface 305 is connected to the second sub-cavity 322, and the fourth interface 304 and the fifth interface 305 are both selectively connected to the medium outlet 102, and the medium outlet 102 is selectively connected to the fourth interface 304 and the fifth interface 305 respectively, so as to achieve the effect of the medium outlet 102 being connected to the first sub-cavity 321 or the second sub-cavity 322.
如图1所示，在一些实施例中，分级压缩系统100还可以包括第五阀体55，第五阀体55连接在介质出口102和第四接口304之间，通过打开和关闭第五阀体55，实现介质出口102和第一子腔体321选择性地连通的效果，分级压缩系统100还可以包括第六阀体56，第六阀体56连接在介质出口102和第五接口305之间，通过打开和关闭第六阀体56，实现介质出口102和第二子腔体322选择性地连通的效果。As shown in Figure 1, in some embodiments, the staged compression system 100 may also include a fifth valve body 55, which is connected between the medium outlet 102 and the fourth interface 304. By opening and closing the fifth valve body 55, the medium outlet 102 and the first sub-chamber 321 are selectively connected. The staged compression system 100 may also include a sixth valve body 56, which is connected between the medium outlet 102 and the fifth interface 305. By opening and closing the sixth valve body 56, the medium outlet 102 and the second sub-chamber 322 are selectively connected.
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述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发明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一定指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何的一个或多个实施例或示例中以合适的方式结合。In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
尽管已经示出和描述了本发明的实施例，本领域的普通技术人员可以理解：在不脱离本发明的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由权利要求及其等同物限定。Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
| Application Number | Priority Date | Filing Date | Title |
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| CN202311812393.1ACN117989109B (en) | 2023-12-25 | 2023-12-25 | Graded compression system for compressed air energy storage |
| Application Number | Priority Date | Filing Date | Title |
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| CN202311812393.1ACN117989109B (en) | 2023-12-25 | 2023-12-25 | Graded compression system for compressed air energy storage |
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| CN117989109A CN117989109A (en) | 2024-05-07 |
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| CN202311812393.1AActiveCN117989109B (en) | 2023-12-25 | 2023-12-25 | Graded compression system for compressed air energy storage |
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