Gas source system applied to energy storage system and control method and device thereof

Abstract

The application discloses a gas source system applied to an energy storage system and a control method and device thereof, and belongs to the technical field of energy storage. A gas storage (1) is connected with an air inlet end of a gas source compressor (2); at least one energy storage pneumatic valve (300) is arranged in an energy storage assembly (3), an air outlet end of the energy source compressor (2) is connected with an air inlet end of the at least one energy storage pneumatic valve (300) in the energy storage assembly (3) through a gas supply main pipe, and the air outlet end of the at least one energy storage pneumatic valve (300) in the energy storage assembly (3) is further connected to the gas storage (1) through a gas return main pipe; and / or at least one energy release pneumatic valve (400) is arranged in an energy release assembly (4), the air outlet end of the gas source compressor (2) is connected with the air inlet end of the at least one energy release pneumatic valve (400) in the energy release assembly (4) through the gas supply main pipe, and the air outlet end of the at least one energy release pneumatic valve (400) in the energy release assembly (4) is further connected to the gas storage (1) through the gas return main pipe.

Description

Technical Field

[0001] This application relates to the field of energy storage technology, and in particular to a gas source system and its control method and device applied to energy storage systems. Background Technology

[0002] With the rapid development of the energy storage industry, carbon dioxide gas-liquid phase change energy storage systems (hereinafter referred to as energy storage systems) have emerged. During off-peak electricity demand, the energy storage system utilizes energy from wind, solar, and off-peak electricity to compress and liquefy carbon dioxide, converting electrical energy into the pressure and thermal energy of the carbon dioxide, which is then stored in the energy storage system. During peak electricity demand, the pressure and thermal energy of the carbon dioxide in the energy storage system are released through the energy release components. After absorbing heat, the carbon dioxide enters the turbine, driving the turbine to perform work and output electrical energy. The carbon dioxide after performing work is stored in the energy storage system, preparing for the next energy storage cycle.

[0003] In related technologies, energy storage systems are equipped with anti-surge valves, reflux valves, safety valves, check valves, etc., to protect compressors and turbines. Because anti-surge valves are hydraulically controlled valves, they have high maintenance costs; reflux valves are electrically operated valves with long opening and closing times; safety valves are mechanical spring valves, which often fail to operate or have inaccurate operating pressures when system pressure is high; and check valves repeatedly open and close when system equipment shuts down abnormally, increasing the valve failure rate and potentially affecting the safe and stable operation of the energy storage system. Summary of the Invention

[0004] This application provides a gas source system and its control method and apparatus for use in energy storage systems. The technical solution is as follows: On the one hand, a gas source system for an energy storage system is provided, the energy storage system comprising a gas storage tank (1), an energy storage component (3), a liquid storage tank (9), and an energy release component (4) connected in a closed loop in sequence; the gas source system includes a gas source compressor (2). The gas storage tank (1) is connected to the air inlet end of the gas source compressor (2); The energy storage component (3) is provided with at least one energy storage pneumatic valve (300). The outlet end of the gas source compressor (2) is connected to the inlet end of at least one energy storage pneumatic valve (300) in the energy storage component (3) through a gas supply header. The outlet end of at least one energy storage pneumatic valve (300) in the energy storage component (3) is also connected to the gas storage tank (1) through a return gas header. And / or, The energy release assembly (4) is provided with at least one energy release pneumatic valve (400). The outlet end of the gas source compressor (2) is connected to the inlet end of at least one energy release pneumatic valve (400) in the energy release assembly (4) through a gas supply header. The outlet end of at least one energy release pneumatic valve (400) in the energy release assembly (4) is also connected to the gas storage tank (1) through a return gas header.

[0005] On the other hand, a control method for a gas source system applied to an energy storage system is provided. The gas source system for the energy storage system refers to the gas source system for the energy storage system described above, wherein the gas storage tank is used to store gaseous carbon dioxide, and the gas source compressor is used to compress the carbon dioxide; the method includes: Control the opening of the outlet of the gas storage tank and the gas source compressor, so that the carbon dioxide compressed by the gas source compressor drives at least one energy storage pneumatic valve in the energy storage component to work, and / or so that the carbon dioxide compressed by the gas source compressor drives at least one energy release pneumatic valve in the energy release component to work. The gas storage tank inlet is opened to allow carbon dioxide that drives at least one pneumatic valve in the energy storage assembly to flow back into the gas storage tank, and / or to allow carbon dioxide that drives at least one pneumatic valve in the energy release assembly to flow back into the gas storage tank.

[0006] On the other hand, a control device for a gas source system applied to an energy storage system is provided. The gas source system for the energy storage system refers to the gas source system for the energy storage system described above. The gas storage tank is used to store gaseous carbon dioxide, and the gas source compressor is used to compress the carbon dioxide. The device includes: The first control module is used to control the opening of the gas storage tank and the gas source compressor, so that the carbon dioxide compressed by the gas source compressor drives at least one energy storage pneumatic valve in the energy storage component to work, and / or so that the carbon dioxide compressed by the gas source compressor drives at least one energy release pneumatic valve in the energy release component to work. The second control module is used to control the opening of the inlet of the gas storage tank so that carbon dioxide driving at least one energy storage pneumatic valve in the energy storage component flows back into the gas storage tank, and / or so that carbon dioxide driving at least one energy release pneumatic valve in the energy release component flows back into the gas storage tank.

[0007] On the other hand, a computer device is provided, the computer device including a processor and a memory, the memory storing a computer program, the computer program being loaded and executed by the processor to implement the control method for a gas source system applied to an energy storage system as described above.

[0008] On the other hand, a computer-readable storage medium is provided, wherein a computer program is stored in the computer-readable storage medium, the computer program being loaded and executed by a processor to implement the control method for a gas source system applied to an energy storage system as described above.

[0009] On the other hand, a computer program product is provided, the computer program product including computer instructions stored in a computer-readable storage medium, a processor of a computer device reading the computer instructions from the computer-readable storage medium, the processor executing the computer instructions, causing the computer device to perform the control method for a gas source system applied to an energy storage system as described above.

[0010] The beneficial effects of the technical solutions provided in this application include at least the following: (1) At least one energy storage pneumatic valve is provided in the energy storage component of the energy storage system, and / or at least one energy release pneumatic valve is provided in the energy release component of the energy storage system. The pneumatic valve is pneumatically driven by carbon dioxide. Since there is a large amount of carbon dioxide in the energy storage system, there is no need to add additional devices to the energy storage system. The existing components in the energy storage system can be fully utilized to provide a power source for the control of at least one energy storage pneumatic valve in the energy storage component and / or at least one energy release pneumatic valve in the energy release component. This reduces unnecessary costs, simplifies and automates the entire energy storage system, and makes the gas source system simple and easy to implement. Furthermore, since the carbon dioxide in the gas source system comes from the energy storage system and can return to the energy storage system, the carbon dioxide can both drive the pneumatic valve and will not be discharged into the external environment, thus achieving a closed loop and fully utilizing the carbon dioxide.

[0011] (2) At least one pneumatic valve is provided in the energy storage component of the energy storage system, and / or at least one pneumatic valve is provided in the energy release component of the energy storage system. At least one pneumatic valve in the energy storage component and / or at least one pneumatic valve in the energy release component can be quickly started and closed under the pressure of carbon dioxide, which can effectively prevent system overpressure and equipment reverse rotation, ensure the overall safety of the energy storage system, and realize the safe and stable operation of the energy storage system.

[0012] (3) Since at least one energy storage pneumatic valve in the energy storage component and / or at least one energy release pneumatic valve in the energy release component are pneumatically driven by carbon dioxide, no manual control of the valve is required by the staff, which greatly reduces the learning cost and improves the work enthusiasm of the staff. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a structural block diagram of a computer device and a gas source system applied to an energy storage system provided in an exemplary embodiment of this application; Figure 2 This is a schematic diagram of a gas source system applied to an energy storage system provided in an exemplary embodiment of this application; Figure 3 This is a schematic diagram of a gas source system applied to an energy storage system provided in an exemplary embodiment of this application; Figure 4 This is a schematic diagram of a gas source system applied to an energy storage system provided in an exemplary embodiment of this application; Figure 5 This is a schematic diagram of a gas source system applied to an energy storage system provided in an exemplary embodiment of this application; Figure 6 This is a schematic diagram of a gas source system applied to an energy storage system provided in an exemplary embodiment of this application; Figure 7 This is a schematic diagram of a gas source system applied to an energy storage system provided in an exemplary embodiment of this application; Figure 8 This is a schematic diagram of a gas source system applied to an energy storage system provided in an exemplary embodiment of this application; Figure 9 This is a schematic diagram of a gas source system applied to an energy storage system provided in an exemplary embodiment of this application; Figure 10 This is a schematic diagram of an energy storage component provided in an exemplary embodiment of this application; Figure 11 This is a schematic diagram of an energy storage component provided in an exemplary embodiment of this application; Figure 12 This is a schematic diagram of an energy storage component provided in an exemplary embodiment of this application; Figure 13 This is a schematic diagram of an energy-releasing component provided in an exemplary embodiment of this application; Figure 14 This is a schematic diagram of an energy-releasing component provided in an exemplary embodiment of this application; Figure 15 This is a schematic diagram of an energy storage system and a gas source system applied to the energy storage system provided in an exemplary embodiment of this application; Figure 16This is a schematic diagram of a gas source system applied to an energy storage system provided in an exemplary embodiment of this application; Figure 17 This is a schematic diagram of a gas source system applied to an energy storage system provided in an exemplary embodiment of this application; Figure 18 This is a schematic diagram of the pneumatic control of a check valve provided in an exemplary embodiment of this application; Figure 19 This is a schematic diagram of the pneumatic control of a return valve provided in an exemplary embodiment of this application; Figure 20 This is a flowchart of a control method for a gas source system applied to an energy storage system, provided in an exemplary embodiment of this application; Figure 21 This is a block diagram of a control device for a gas source system applied to an energy storage system, provided in an exemplary embodiment of this application. Figure 22 This is a structural block diagram of a computer device provided in an exemplary embodiment of this application.

[0015] The reference numerals in the figure are respectively: 1: Gas storage tank; 2: Gas source compressor; 3: Energy storage component; 4: Energy release component; 5: Gas storage tank; 6: Purification component; 7: Flue gas heat exchanger; 8: Carbon capture, utilization and storage (CCUS) system; 9: Liquid storage tank; 30: At least one stage of compression energy storage; 31: First stage compression energy storage; 32: Second stage compression energy storage; 40: At least one stage of expansion energy release; 41: First stage expansion energy release; 42: Second stage expansion energy release; 61: Filter; 62: Dryer; 63: Purifier; 80: Capture device; 81: CCUS compressor; 82: Dryer; 83: Liquefaction device; 84: Liquid storage tank; 300: At least one energy storage pneumatic valve in the energy storage component; 310-1: First regulating valve; 310-2: Second regulating valve; 320-1: Energy storage safety valve; 320-2: Pressure control (PCV) valve; 330-1: The first stage of compression energy storage; 310-1: The first stage of compression energy storage; 310-2: The first stage of compression energy storage; 320-3: The second stage of compression energy storage; 320-3: The first ... 330-2: Second check valve; 310-11: First anti-surge valve; 310-12: First return valve; 310-21: Second anti-surge valve; 310-22: Second return valve; 400: At least one energy-releasing pneumatic valve in the energy-releasing assembly; 410: Third check valve; 420: Energy-releasing safety valve; 510: Check valve cylinder inlet air filter pressure regulating module; 520: Check valve cylinder inlet solenoid valve; 53 0: Check valve cylinder; 540: Check valve spring; 550: Check valve cylinder exhaust solenoid valve; 560: Check valve body; 600: Gas detection element; 610: Return valve cylinder inlet filter pressure regulating module; 620: Valve positioning regulator; 630: Return valve cylinder; 640: Return valve spring; 650: Return valve cylinder exhaust solenoid valve; 660: Return valve body; 710: Soot blowing valve; 720: Drain valve.

[0016] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0018] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0019] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0020] It should be understood that although the terms "first," "second," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, a first parameter may also be referred to as a second parameter, and similarly, a second parameter may also be referred to as a first parameter.

[0021] The directional terms used in the embodiments of this application, such as "up," "down," "left," "right," and "side," are merely for the purpose of more clearly describing the relationships between structures, and are not intended to describe absolute directions. The orientation may change when the product is placed in different positions; for example, "up" and "down" may be interchanged.

[0022] Unless otherwise defined, all technical terms used in the embodiments of this application have the same meaning as commonly understood by those skilled in the art. Some technical terms appearing in the embodiments of this application are explained below. To make the technical solutions and advantages of this application clearer, the embodiments of this application will be further described in detail below with reference to the accompanying drawings.

[0023] Carbon dioxide gas-liquid phase change energy storage systems (hereinafter referred to as energy storage systems) do not require the burning of coal or natural gas. Instead, during off-peak electricity demand, they utilize energy from curtailed wind and solar power, or off-peak electricity, to compress carbon dioxide, converting electrical energy into carbon dioxide pressure energy and thermal energy. The compressed carbon dioxide is stored in energy storage containers, and a heat exchanger can be used to absorb the heat of compression of the carbon dioxide before storing it in a heat storage device. During peak electricity demand, high-pressure carbon dioxide is released. The high-pressure carbon dioxide is heated by the heat of compression stored in the heat storage device or by a heat source outside the energy storage system, forming high-temperature, high-pressure carbon dioxide that drives a turbine unit to generate electricity. The low-temperature, low-pressure carbon dioxide exiting from the turbine unit's exhaust side is stored in a gas storage device, such as a gas storage tank. The entire process achieves a closed-loop carbon dioxide cycle, resulting in zero emissions and zero pollution to the environment. This application applies to compressed air energy storage systems, carbon dioxide liquid-liquid phase change energy storage systems, carbon dioxide gas-supercritical energy storage systems, carbon dioxide liquid-supercritical energy storage systems, and carbon dioxide gas-liquid phase change energy storage systems.

[0024] Figure 1This is a structural block diagram 100 of a computer device 110 and a gas source system 120 applied to an energy storage system, provided in an exemplary embodiment of this application. This structural block diagram 100 can realize a system architecture for a control method applied to the gas source system 120 of an energy storage system. The structural block diagram 100 includes: a computer device 110 and a gas source system 120 applied to an energy storage system, wherein the energy storage system refers to a carbon dioxide gas-liquid phase change energy storage system, hereinafter referred to as the energy storage system.

[0025] For example, computer device 110 may be directly connected to gas supply system 120 applied to energy storage system, or computer device 110 may be communicatively connected to gas supply system 120 applied to energy storage system for controlling various valves and / or components in gas supply system 120 applied to energy storage system, which will be described in detail in the following embodiments.

[0026] In some embodiments, the energy storage system includes a gas storage tank, an energy storage component, a liquid storage tank, and an energy release component connected in a closed loop. The gas storage tank, energy storage component, liquid storage tank, and energy release component in this energy storage system can be understood with reference to the gas storage tank, energy storage component, liquid storage tank, and energy release component described in Chinese Invention Patent Publications CN112985143B, CN112985144B, and CN112985145B. The gas storage tank is used to store gaseous carbon dioxide, the liquid storage tank is used to store liquid carbon dioxide, the energy storage component is used to store energy, and the energy release component is used to release energy. Its operation is divided into an energy storage stage and a power generation stage. The energy storage stage mainly occurs during off-peak electricity demand, while the power generation stage mainly occurs during peak electricity demand. Specifically, in the energy storage stage, the energy storage system utilizes energy from wind and solar power curtailment, off-peak electricity, etc., to compress and liquefy carbon dioxide, converting electrical energy into carbon dioxide pressure energy and thermal energy for storage. In the power generation stage, the energy storage system uses the energy release component to generate electricity by releasing high-pressure carbon dioxide. The energy storage component in the energy storage system of this embodiment is provided with at least one energy storage pneumatic valve, and / or the energy release component in the energy storage system is provided with at least one energy release pneumatic valve. The aforementioned pneumatic valve is mainly pneumatically driven and controlled by carbon dioxide present in the energy storage system itself. In addition, the aforementioned pneumatic valve can also be controlled in conjunction with the control commands of the computer device 110, which will be described in detail in the following embodiments.

[0027] Computer device 110 can be a control device with control functions and data computing, data processing, and storage capabilities, such as at least one of a terminal, server, various control chips, and control circuit boards. The terminal can be an electronic device such as a mobile phone, tablet computer, wearable device, personal computer, or unmanned reservation terminal. The server can be an independent physical server, a server cluster or distributed system composed of multiple physical servers, or a cloud server providing basic cloud computing services such as cloud servers, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, content delivery networks, and big data and artificial intelligence platforms.

[0028] Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 This is a schematic diagram of a gas source system applied to an energy storage system provided in an exemplary embodiment of this application. The energy storage system includes a gas storage tank (1), an energy storage component (3), a liquid storage tank (9), and an energy release component (4) connected in a closed loop in sequence.

[0029] refer to Figure 2 The gas source system includes a gas source compressor (2); the gas storage tank (1) is connected to the inlet end of the gas source compressor (2); the energy storage component (3) is provided with at least one energy storage pneumatic valve (300), the outlet end of the gas source compressor (2) is connected to the inlet end of at least one energy storage pneumatic valve (300) in the energy storage component (3) through a gas supply header, and the outlet end of at least one energy storage pneumatic valve (300) in the energy storage component (3) is also connected to the gas storage tank (1) through a return header. In this embodiment, when the outlet (outlet end) of the gas storage tank (1) and the gas source compressor (2) are opened, the carbon dioxide compressed by the gas source compressor (2) can drive at least one energy storage pneumatic valve (300) in the energy storage component (3) to work, and the carbon dioxide that drives at least one energy storage pneumatic valve (300) in the energy storage component (3) to work can flow back to the gas storage tank (1).

[0030] And / or, the gas storage tank (1) is connected to the inlet end of the gas source compressor (2); at least one energy release pneumatic valve (400) is provided in the energy release assembly (4), the outlet end of the gas source compressor (2) is connected to the inlet end of at least one energy release pneumatic valve (400) in the energy release assembly (4) through the gas supply header, and the outlet end of at least one energy release pneumatic valve (400) in the energy release assembly (4) is also connected to the gas storage tank (1) through the return header. In this embodiment, when the outlet of the gas storage tank (1) and the gas source compressor (2) are opened, the carbon dioxide compressed by the gas source compressor (2) can drive at least one energy release pneumatic valve (400) in the energy release assembly (4) to work, and the carbon dioxide that drives at least one energy release pneumatic valve (400) in the energy release assembly (4) to work can flow back to the gas storage tank (1).

[0031] For example, the gas storage tank (1) stores gaseous carbon dioxide at normal temperature and pressure. The pressure and temperature inside the gas storage tank (1) need to be maintained within a certain range. This range can be set according to actual technical needs. Optionally, the gas storage tank (1) is equipped with a heat insulation component, which is used to insulate the gas storage tank so that the temperature is maintained within a certain range. For example, the temperature range of the gas storage tank (1) is -40~70ºC, and the pressure difference between the gas inside the gas storage tank and the outside atmosphere is less than 1000Pa. Specifically, the gas storage tank (1) can be one of the gas storage tanks described in patents CN112985143B, CN112985144B, CN112985145B, CN114109549B, and CN113280252B. Its volume can vary; when carbon dioxide is added, the volume of the gas storage tank (1) increases, and when carbon dioxide flows out, the volume of the gas storage tank (1) decreases, thereby achieving a constant pressure within the gas storage tank (1). In other embodiments, the gas storage tank (1) can also be other variable-volume containers; this embodiment does not impose any limitations on this.

[0032] For example, a gas source compressor (2) is used to compress gaseous carbon dioxide at atmospheric pressure flowing out of the gas storage tank (1). The carbon dioxide compressed by the gas source compressor (2) can subsequently provide a gas source for at least one energy storage pneumatic valve (300) in the energy storage assembly (3) and / or at least one energy release pneumatic valve (400) in the energy release assembly (4). Specifically, the gas source compressor (2) can be a shaft seal compressor. There is at least one gas source compressor (2). In some examples, there are at least two gas source compressors (2) connected in parallel, and the models of the at least two gas source compressors (2) can be the same or different. Among them, one of the at least two gas source compressors (2) is started and running, and the other gas source compressor is used as a standby.

[0033] Optionally, an inlet filter screen is provided at the inlet of the gas source compressor (2) to filter carbon dioxide in the gas storage tank (1), so that the carbon dioxide filtered by the inlet filter screen enters the gas source compressor (2). When the gas source compressor (2) consists of at least two gas source compressors connected in parallel, a gas source compressor inlet main valve is provided at the inlet of the at least two gas source compressors connected in parallel, and for each gas source compressor, an inlet electric valve is provided at the inlet of each gas source compressor, and an outlet electric valve is provided at the outlet of each gas source compressor. When the gas source compressor inlet main valve is open and the inlet electric valve of one gas source compressor is open, the carbon dioxide in the gas storage tank (1) can enter the gas source compressor. When the gas source compressor inlet main valve is open and the outlet electric valve of one gas source compressor is open, the carbon dioxide compressed by the gas source compressor can enter the gas storage tank (5).

[0034] Optionally, before starting the gas source compressor (2), it is also necessary to confirm that the gas source compressor inlet filter is in a clean state. This clean state can be determined by the staff, or a clean detection element can be installed on the gas source compressor inlet filter to detect whether it is in a clean state.

[0035] For example, the energy storage component (3) is used to store energy. Gaseous carbon dioxide flowing out of the gas storage tank (1) can be converted into liquid through the energy storage component (3) and flow into the liquid storage tank (9), thus completing energy storage. The energy release component (4) is used to release energy. Liquid carbon dioxide flowing out of the liquid storage tank (9) is converted into gas through the energy release component (4) and flows into the gas storage tank (1), thus releasing the energy stored during the energy storage process. The liquid storage tank (9) can be referenced. Figure 15 As shown in the image.

[0036] In the above embodiments, by setting at least one energy storage pneumatic valve (300) in the energy storage component (3) of the energy storage system and / or setting at least one energy release pneumatic valve (400) in the energy release component (4) of the energy storage system, the carbon dioxide of the energy storage system itself can be used to achieve pneumatic drive. There is no need to add other components or devices to the energy storage system, which simplifies the overall valve drive process, saves overall costs, and realizes the safe and stable operation of the energy storage system.

[0037] Compared to air-driven systems, the air-source system used in this embodiment for energy storage draws its gas from a carbon dioxide energy storage system. This gas source is convenient to use, as the energy storage system can directly supply carbon dioxide to the air-source system, providing redundancy and ensuring high safety. Furthermore, this air-source system can achieve a closed-loop cycle, allowing for the recycling of the carbon dioxide working fluid. This air-source system effectively couples with the energy storage system, reducing its power consumption and improving its stability, environmental friendliness, economy, and practicality.

[0038] refer to Figure 3 ,exist Figure 2 Based on this, the energy storage system also includes a gas storage tank (5), the outlet of the gas source compressor (2) is connected to the inlet of the gas storage tank (5); the outlet of the gas storage tank (5) is connected to the inlet of at least one energy storage pneumatic valve (300) in the energy storage component (3) through a gas supply header, and / or, the outlet of the gas storage tank (5) is connected to the inlet of at least one energy release pneumatic valve (400) in the energy release component (4) through a gas supply header.

[0039] The gas storage tank (5) is used to store carbon dioxide compressed by the gas source compressor (2). The gas storage tank (5) may specifically include at least one of the following: a pressure detection element, a temperature detection element, an overpressure relief valve, and a drain valve. The pressure detection element is used to detect the pressure inside the gas storage tank (5), and the temperature detection element is used to detect the temperature inside the gas storage tank (5). The gas source compressor (2) is interlocked to start when the pressure detection element detects a pressure lower than the minimum pressure. The overpressure relief valve is used to ensure that the pressure of the gas storage tank (5) remains within the set safe pressure range during operation. The drain valve is used to discharge impurities and moisture from the gas storage tank (5).

[0040] Optionally, when the gas source compressor (2) starts, the gas storage tank (5) begins to pressurize. When the pressure in the gas storage tank (5) reaches the preset pressure, the gas source compressor (2) stops. When the pressure in the gas storage tank (5) is less than the minimum pressure, the gas source compressor (2) is restarted.

[0041] Optionally, the gas storage tank (5) is also equipped with a gas storage tank drain valve for draining moisture from the gas storage tank (5). In some embodiments, the gas storage tank drain valve is opened according to a set cycle, which can be set in daily or monthly increments. And / or, a level gauge is also installed inside the gas storage tank (5) to measure the water level inside the gas storage tank (5). When the water level inside the gas storage tank (5) exceeds a preset water level, the gas storage tank drain valve is opened. The preset water level can be set according to the technical requirements of the actual application scenario.

[0042] In some embodiments, the gas storage tank (5) of the gas source system applied to the energy storage system can be configured as multiple, with different gas storage tanks (5) used to achieve the same or different purposes. When achieving different purposes, different gas storage tanks (5) can also correspond to different names. For example, if the gas source compressor (2) includes a shaft seal compressor, then all or at least some of the gas storage tanks (5) can also be shaft seal gas storage tanks.

[0043] refer to Figure 4 ,exist Figure 3 Based on this, the gas source system applied to the energy storage system also includes a purification component (6), the air inlet of the gas storage tank (5) is connected to the air inlet of the purification component (6); the air outlet of the purification component (6) is connected to the air inlet of at least one energy storage pneumatic valve (300) in the energy storage component (3) through the air supply header, and / or, the air outlet of the purification component (6) is connected to the air inlet of at least one energy storage pneumatic valve (300) in the energy storage component (3) through the air supply header.

[0044] Optionally, the purification component (6) includes at least one of a filter (61), a dryer (62), and a purifier (63) connected in series. The air inlet of the gas storage tank (5) is connected in sequence to the filter (61), the dryer (62), and the purifier (63). The air outlet of the purifier (63) is connected to the air inlet of at least one energy storage pneumatic valve (300) in the energy storage component (3) through a gas supply header. And / or, the air outlet of the purifier (63) is connected to the air inlet of at least one energy release pneumatic valve (400) in the energy release component (4) through a gas supply header.

[0045] The purification component (6) is used to purify the carbon dioxide flowing from the gas storage tank (5) to achieve a preset purity. The filter (61) is used to further filter the carbon dioxide and remove impurities. The dryer (62) is used to remove residual moisture from the carbon dioxide. The purifier (63) is used to further remove particulate impurities. After purification by the purification component (6), high-purity, room-temperature, preset-pressure carbon dioxide can be provided to at least one energy storage pneumatic valve (300) in the energy storage component (3) and / or at least one energy release pneumatic valve (400) in the energy release component (4). In this embodiment, there are no restrictions on the type, quantity, or model of the filter (61), dryer (62), and purifier (63) in the purification component (6).

[0046] In this embodiment, the carbon dioxide flowing out of the gas storage tank (5) can be further filtered, dried and purified by the purification component (6), thereby providing purer carbon dioxide to at least one energy storage pneumatic valve (300) in the energy storage component (3) and / or at least one energy release pneumatic valve (400) in the energy release component (4), ensuring the purity of the gas source system applied to the energy storage system, and reducing the subsequent pipeline cleaning cost.

[0047] refer to Figure 5 ,exist Figure 3 Based on this, the gas source system applied to the energy storage system also includes a gas detection element (600), the gas inlet of the gas storage tank (5) is connected to the gas inlet of the gas detection element (600); the gas outlet of the gas detection element (600) is connected to the gas inlet of at least one energy storage pneumatic valve (300) in the energy storage component (3) through a gas supply header, and / or, the gas outlet of the gas detection element (600) is connected to the gas inlet of at least one energy release pneumatic valve (400) in the energy release component (4) through a gas supply header, and / or, the gas outlet of the gas detection element (600) is also connected to the gas inlet of the purification component (6).

[0048] The gas detection element (600) is used to detect the purity of carbon dioxide flowing out of the gas storage tank (5). When the gas detection element (600) detects that the purity of carbon dioxide flowing out of the gas storage tank (5) is greater than or equal to the preset purity, there is no need to connect the purification component (6). The carbon dioxide flowing out of the gas storage tank (5) can be used to drive at least one energy storage pneumatic valve (300) in the energy storage component (3) and / or drive at least one energy release pneumatic valve (400) in the energy release component (4). When the gas detection element (600) detects that the purity of carbon dioxide flowing out of the gas storage tank (5) is less than the preset purity, the carbon dioxide flowing out of the gas storage tank (5) is first filtered further by the purification component (6). The carbon dioxide purified by the purification component (6) can drive at least one energy storage pneumatic valve (300) in the energy storage component (3) and / or drive at least one energy release pneumatic valve (400) in the energy release component (4).

[0049] refer to Figure 6 ,exist Figure 4 or Figure 5 Based on this, the gas source system applied to the energy storage system also includes a flue gas heat exchanger (7), a soot blowing valve (710), and a drain valve (720). The soot blowing valve (710) is located between the gas storage tank (5) and the flue gas heat exchanger (7). The outlet of the flue gas heat exchanger (7) is connected to the inlet of the drain valve (720), and the outlet of the drain valve (720) is connected to the external environment. In some embodiments, for environmental protection considerations, the external environment may be the environment where some waste treatment devices are located, so as to avoid direct pollution of the atmosphere.

[0050] The soot blowing valve (710) is used to blow soot from the flue gas heat exchanger (7), specifically to blow soot from the heat exchange plates inside the flue gas heat exchanger (7). The soot blowing valve (710) can also be called the flue gas heat exchanger soot blowing valve. The drain valve (720) is used to discharge dust and impurities inside the flue gas heat exchanger (7). The drain valve (720) can also be called the flue gas heat exchanger drain valve. During long-term operation of the flue gas heat exchanger (7), some dust and impurities will remain on the heat exchange plates of the flue gas heat exchanger (7). When the soot blowing valve (710) of the flue gas heat exchanger (7) is opened, carbon dioxide in the gas storage tank (5) can enter the flue gas heat exchanger (7), thereby discharging the dust and impurities attached to the heat exchange plates to the external environment through the drain valve (720). Optionally, the flue gas heat exchanger (7) is also connected to an exhaust chimney, which is connected to the external environment, and the carbon dioxide after purging can be discharged into the external environment through the exhaust chimney.

[0051] In this embodiment, there is no need to install other soot blowing devices in the energy storage system. Soot blowing of the flue gas heat exchanger (7) can be achieved by using carbon dioxide in the energy storage system, which reduces the cost of soot blowing of the flue gas heat exchanger (7) and improves the efficiency of soot blowing of the flue gas heat exchanger (7), thereby reducing the system cost of the gas source system applied to the energy storage system.

[0052] In some embodiments, the energy storage system and / or the gas source system applied to the energy storage system are also coupled to the carbon capture, utilization and storage (CCUS) system (8). The energy storage system and / or the gas source system applied to the energy storage system are connected to the CCUS system (8) through a gas supply pipeline so that the gaseous carbon dioxide captured by the CCUS system (8) is supplied to the energy storage system and / or the gas source system applied to the energy storage system.

[0053] A carbon capture, utilization and storage (CCUS) system is a system that separates and stores or utilizes carbon dioxide from industrial processes, energy use, or the atmosphere to achieve permanent carbon dioxide emission reduction. When the CCUS system (8) is coupled with the energy storage system of this embodiment, the CCUS system (8) is used to provide carbon dioxide to the gas source system used in the energy storage system.

[0054] For example, the CCUS system (8) includes a trap (80), a CCUS compressor (81), a dryer (82), a liquefier (83) and a storage tank (84) connected in sequence.

[0055] The trap (80) is used to capture gaseous carbon dioxide, for example, to extract and separate carbon dioxide from the atmosphere or flue gas emitted during industrial production or energy utilization. Taking the fossil fuel combustion process as an example, the trap (80) can capture carbon dioxide before combustion. Specifically, before the fossil fuel is burned, the fossil fuel is gasified into syngas, and the carbon element in the syngas is converted into carbon dioxide through a conversion reaction. Then, the carbon dioxide is separated by solvent absorption or other methods. Alternatively, the trap (80) can capture carbon dioxide after combustion. Specifically, the carbon dioxide in the flue gas after coal combustion is separated and purified from other waste gases through membrane separation, adsorption separation, or other methods. In some other exemplary embodiments of this application, the trap (80) can also capture carbon dioxide through oxygen-enriched combustion, chemical looping combustion, or directly capture carbon dioxide from the atmosphere, which will not be listed here.

[0056] The CCUS compressor (81) is used to compress the carbon dioxide captured by the trap (80). After the CCUS compressor (81) compresses the carbon dioxide captured by the trap (80), the relative humidity of the compressed carbon dioxide increases, and the dryer (82) dries the compressed carbon dioxide, thus preventing water deposition in the pipeline and downstream equipment. In some exemplary embodiments, liquid carbon dioxide may be stored in a storage tank (84).

[0057] The liquid carbon dioxide in the storage tank (84) can be utilized, for example, by injecting it into an oil reservoir to produce a physicochemical reaction with the petroleum, thereby increasing oil production; or by injecting it into deep, unminable coal seams to achieve long-term storage and enhance coalbed methane extraction. It can also be used for biological purposes, such as by injecting it into greenhouses to increase the rate of photosynthesis and improve crop yield; or by converting carbon dioxide into liquid fuels and biocompost through microalgae. Since the carbon utilization pathways of the CCUS system (8) are still relatively limited and the amount of carbon dioxide emitted exceeds the capacity for carbon dioxide utilization, it can be further transported by means of transportation such as vehicles and ships to storage sites such as saline aquifers or depleted oil and gas reservoirs for long-term storage.

[0058] The CCUS system (8) includes a CCUS compressor (81), see reference. Figure 7 The CCUS compressor (81) is connected to the gas storage tank (1) via a gas supply line, and / or, refer to Figure 9 The CCUS compressor (81) is connected via a supply line to the inlet of at least one energy storage pneumatic valve (300) in the energy storage assembly (3), and / or, refer to Figure 8 The CCUS compressor (81) is connected to the inlet of at least one of the energy release pneumatic valves (400) in the energy release assembly (4) via an air supply line.

[0059] Specifically, refer to Figure 9 The outlet of the CCUS compressor (81) is connected via a supply line to the inlet of at least one energy storage pneumatic valve (300) in the energy storage assembly (3), and the outlet of at least one energy storage pneumatic valve (300) in the energy storage assembly (3) is connected via a return line to the inlet of the CCUS compressor (81). And / or, refer to Figure 8 The outlet of the CCUS compressor (81) is connected to the inlet of at least one energy release pneumatic valve (400) in the energy release assembly (4) via a gas supply line, and the outlet of at least one energy release pneumatic valve (400) in the energy release assembly (4) is connected to the inlet of the CCUS compressor (81) via a return line.

[0060] Specifically, the CCUS system (8) includes a CCUS compressor (81) that can compress the carbon dioxide obtained by the trap (80) through capture. Reference Figure 7 When the CCUS compressor (81) is connected to the gas storage tank (1) via a gas supply line, it can supply carbon dioxide from the inlet of the CCUS compressor (81) and / or carbon dioxide compressed by the CCUS compressor (81) from the outlet of the CCUS compressor (81) to the energy storage system and the gas source system used in the energy storage system. After the carbon dioxide drives at least one energy storage pneumatic valve (300) in the energy storage component (3) and / or at least one energy release pneumatic valve (400) in the energy release component (4), it returns to the gas storage tank (1). (See reference...) Figure 9 When the CCUS compressor (81) is connected to at least one energy storage pneumatic valve (300) in the energy storage assembly (3) via a gas supply line, the carbon dioxide compressed by the CCUS compressor (81) at the outlet of the CCUS compressor (81) can be supplied to at least one energy storage pneumatic valve (300) in the energy storage assembly (3) to drive its operation. After driving at least one energy storage pneumatic valve (300) in the energy storage assembly (3), the carbon dioxide returns to the gas storage tank (1) or to the inlet of the CCUS compressor (81). Reference Figure 8 When the CCUS compressor (81) is connected to at least one energy-releasing pneumatic valve (400) in the energy-releasing assembly (4) via a gas supply line, the carbon dioxide compressed by the CCUS compressor (81) at the outlet of the CCUS compressor (81) can be supplied to at least one energy-releasing pneumatic valve (400) in the energy-releasing assembly (4) to drive its operation. After driving at least one energy-releasing pneumatic valve (400) in the energy-releasing assembly (4) to operate, the carbon dioxide returns to the gas storage tank (1) or to the inlet of the CCUS compressor (81). In a specific example, combined with Figure 6The CCUS system (8) can also be connected to the flue gas heat exchanger (7) via a gas supply line. Specifically, the outlet of the CCUS compressor (81) in the CCUS system (8) can be connected to the inlet of the flue gas heat exchanger (7) or the inlet of the soot blower (710) via a gas supply line.

[0061] In some embodiments, the energy storage component (3) includes at least one stage of compressed energy storage (30), as referenced. Figure 10 At least one energy storage pneumatic valve (300) in the energy storage assembly (3) is connected in parallel with at least one stage of compressed energy storage unit (30), and / or, refer to Figure 11 At least one energy storage pneumatic valve (300) in the energy storage component (3) is connected in series with at least one stage of compressed energy storage unit (30), and / or, refer to Figure 12 At least one energy storage pneumatic valve (300) in the energy storage assembly (3) is disposed on a branch of the pipeline of at least one stage of compression energy storage section (30); and / or, the energy release assembly (4) includes at least one stage of expansion energy release section (40), referencing Figure 13 At least one energy-releasing pneumatic valve (400) in the energy-releasing assembly (4) is connected in series with at least one stage expansion energy-releasing section (40), and / or, refer to Figure 14 At least one energy-releasing pneumatic valve (400) in the energy-releasing assembly (4) is provided on a branch of the pipeline of at least one stage expansion energy-releasing section (40).

[0062] It should be noted that the series and parallel connections within the energy storage component (3) and the energy release component (4) in the above embodiments can be combined and implemented in various ways, and there is no limitation on this. For example, Figure 10 and Figure 13 Combined implementation, Figure 10 and Figure 14 Combined implementation, Figure 11 and Figure 13 Combined implementation, Figure 11 and Figure 14 Combined implementation, Figure 12 and Figure 13 Combined implementation, Figure 12 and Figure 14 Combined implementation, Figure 10 and Figure 11 and Figure 13 Combined implementation, Figure 10 and Figure 11 and Figure 14 Combined implementation, Figure 10 and Figure 12 and Figure 13 Combined implementation, Figure 10 and Figure 12 and Figure 14 Combined implementation, Figure 11 and Figure 12 and Figure 13 Combined implementation, Figure 11 and Figure 12 and Figure 14 Combined implementation, Figure 10 and Figure 11 and Figure 12 and Figure 13 Combined implementation, Figure 10 and Figure 11 and Figure 12 and Figure 14 Combined implementation, Figure 10 and Figure 11 and Figure 12 and Figure 13 and Figure 14 Combined implementation.

[0063] Specifically, as an example, refer to Figure 15 , Figure 15 The thick lines in the diagram represent structural examples of energy storage systems. Figure 15 The thin lines in the diagram represent a structural example of a gas source system applied to an energy storage system. The energy storage component (3) includes at least two stages of compressed energy storage, comprising a first-stage compressed energy storage unit (31) and a second-stage compressed energy storage unit (32). At least one pneumatic valve (300) in the energy storage component (3) includes at least one of a first regulating valve (310-1), a second regulating valve (310-2), an energy storage safety valve (320-1), a pressure control PCV valve (320-2), a first check valve (330-1), and a second check valve (330-2). In this embodiment, the carbon dioxide in the gas source system originates from the outlet of the first-stage compressed energy storage unit (31) and / or the outlet of the second-stage compressed energy storage unit (32). The carbon dioxide in the gas source system utilizes the existing pressurized carbon dioxide in the energy storage system, such as the carbon dioxide at the outlet of the first-stage compression energy storage unit (31) and / or the outlet of the second-stage compression energy storage unit (32). Compared with the pressurized carbon dioxide compressed by the gas source compressor (2), this saves on the equipment investment and energy consumption of the gas source compressor (2).

[0064] The first regulating valve (310-1) is connected in parallel with the first-stage compression energy storage unit (31), the second regulating valve (310-2) is connected in parallel with the second-stage compression energy storage unit (32), the energy storage safety valve (320-1) and / or the pressure control valve (320-2) are provided on the branch of the pipeline between the first-stage compression energy storage unit (31) and the second-stage compression energy storage unit (32), the first check valve (330-1) is connected in series with the first-stage compression energy storage unit (31), and the second check valve (330-2) is connected in series with the second-stage compression energy storage unit (32). Specifically, the first regulating valve (310-1) includes a first anti-surge valve (310-11) and / or a first return valve (310-12), and the second regulating valve (310-2) includes a second anti-surge valve (310-21) and / or a second return valve (310-22). And / or, continue to refer to Figure 15 The energy release assembly (4) includes at least two stages of expansion energy release sections, including a first stage expansion energy release section (41) and a second stage expansion energy release section (42). At least one energy release pneumatic valve (400) in the energy release assembly (4) includes a third check valve (410) and / or an energy release safety valve (420). The third check valve (410) is disposed between the first stage expansion energy release section (41) and the second stage expansion energy release section (42). And / or, the energy release safety valve (420) is disposed on a branch of the pipeline between the first stage expansion energy release section (41) and the second stage expansion energy release section (42). In this embodiment, the carbon dioxide of the gas source system comes from the outlet of the first stage expansion energy release section (41). The carbon dioxide in the gas source system utilizes the pressurized carbon dioxide already present in the energy storage system, such as the pressurized carbon dioxide at the outlet of the first-stage expansion and energy release section (41). Compared with the pressurized carbon dioxide compressed by the gas source compressor (2), it saves on the investment and energy consumption of the gas source compressor (2).

[0065] The first-stage compression energy storage unit (31) can specifically be the low-pressure cylinder of the compressor, and the second-stage compression energy storage unit (32) can specifically be the high-pressure cylinder of the compressor. The first check valve (330-1) can also be called the low-pressure cylinder exhaust check valve of the compressor, and the second check valve (330-2) can also be called the high-pressure cylinder exhaust check valve of the compressor. The first regulating valve (310-1) can also be called the low-pressure cylinder regulating valve of the compressor. The second regulating valve (310-2) can also be called the high-pressure cylinder regulating valve of the compressor. The first anti-surge valve (310-11) can also be called the low-pressure cylinder anti-surge valve of the compressor. The first return valve (310-12) can also be called the low-pressure cylinder return valve of the compressor. The second anti-surge valve (310-21) can also be called the high-pressure cylinder anti-surge valve of the compressor. The second return valve (310-22) can also be called the low-pressure cylinder return valve of the compressor. The first-stage expansion energy release unit (41) can specifically be the high-pressure cylinder of the turbine, and the second-stage expansion energy release unit (42) can specifically be the low-pressure cylinder of the turbine. The third check valve (410) can also be called the turbine high-pressure cylinder exhaust check valve.

[0066] The first check valve (330-1), the second check valve (330-2), and the third check valve (410) are used to prevent carbon dioxide backflow in the energy storage system. The first regulating valve (310-1) is used to protect the first-stage compression energy storage unit (31), to prevent surge in the first-stage compression energy storage unit (31) during operation, and to prevent excessive pressure in the pipeline where the first-stage compression energy storage unit (31) is located. Surge refers to a phenomenon in which the inlet and outlet pressures or flow rates of the compressor oscillate periodically due to some reason during its operation, which may cause damage to the compressor in severe cases. The second regulating valve (310-2) is used to protect the second-stage compression energy storage unit (32), to prevent surge in the second-stage compression energy storage unit (32) during operation, and to prevent excessive pressure in the pipeline where the second-stage compression energy storage unit (32) is located.

[0067] The first regulating valve (310-1) protects the first-stage compression energy storage unit (31) through a first anti-surge valve (310-11) and a first return valve (310-12) connected in parallel. The first anti-surge valve (310-11) specifically prevents surge in the first-stage compression energy storage unit (31) during operation. The first return valve (310-12) specifically prevents excessive pressure in the pipeline containing the first-stage compression energy storage unit (31). The second regulating valve (310-2) protects the second-stage compression energy storage unit through a second anti-surge valve (310-21) and a second return valve (310-22) connected in parallel. The second anti-surge valve (310-21) specifically prevents surge in the second-stage compression energy storage unit (32) during operation. The second return valve (310-22) specifically prevents excessive pressure in the pipeline containing the second-stage compression energy storage unit (32).

[0068] A pressure control PCV valve (320-2) is added to a branch of the pipeline between the first-stage compression energy storage unit (31) and the second-stage compression energy storage unit (32) to prevent excessive pressure in the pipeline between the first-stage compression energy storage unit (31) and the second-stage compression energy storage unit (32). An energy storage safety valve (320-1) is also installed on a branch of the pipeline between the first-stage compression energy storage unit (31) and the second-stage compression energy storage unit (32). The energy storage safety valve (320-1) and the PCV valve (320-2) are located on different branches of the pipeline. The energy storage safety valve (320-1) is also used to prevent excessive pressure in the pipeline between the first-stage compression energy storage unit (31) and the second-stage compression energy storage unit (32). The energy storage safety valve (320-1) can also be called the compressor low-pressure cylinder exhaust safety valve. The PCV valve (320-2) can also be called the compressor low-pressure cylinder exhaust PCV valve.

[0069] Combination Figure 15 The gas source system used in energy storage systems, such as Figure 16As shown, when the gas source system applied to the energy storage system also includes a gas detection element (600), a purification component (6), a soot blowing valve (710), a flue gas heat exchanger (7), and a drain valve (720), then the gas source system applied to the energy storage system is as follows: Figure 17 As shown.

[0070] It should also be noted that the above-described energy storage component (3) is based on the first-stage compression energy storage unit (31) and the second-stage compression energy storage unit (32) as examples. In actual application scenarios, the energy storage component (3) may also include more or fewer compression energy storage units. For example, it may include only the first-stage compression energy storage unit or only the second-stage compression energy storage unit, or it may also include the third-stage compression energy storage unit and the fourth-stage compression energy storage unit. This embodiment does not limit this. It should also be noted that the examples of the first check valve (330-1), the second check valve (330-2), the first regulating valve (310-1), the second regulating valve (310-2), the energy storage safety valve (320-1), and the PCV valve (320-2) are only examples. In actual application scenarios, valves that can achieve their corresponding functions are all within the protection scope of this embodiment.

[0071] In this embodiment, a two-stage compression and energy storage unit is used to gradually increase the pressure of carbon dioxide. Compared to single-stage compression, two-stage compression allows for the use of a compressor with a lower compression ratio, reducing compressor costs while improving the degree and effectiveness of carbon dioxide compression.

[0072] It should be noted that the above-described energy release component (4) is illustrated using the first-stage expansion energy release section (41) and the second-stage expansion energy release section (42) as examples. In actual application scenarios, the energy release component may also include more or fewer expansion energy release sections. For example, it may include only the first-stage expansion energy release section or only the second-stage expansion energy release section, or it may also include a third-stage expansion energy release section and a fourth-stage expansion energy release section. This embodiment does not impose any limitations on this. It should also be noted that the examples of the aforementioned third check valve (410) and energy release safety valve (420) are merely examples. In actual application scenarios, valves that can achieve their corresponding functions are all within the protection scope of this embodiment.

[0073] In this embodiment, the energy of carbon dioxide is released by setting up a two-stage expansion energy release section. Compared with releasing the energy of carbon dioxide in one stage, the two-stage energy release allows for a more complete release of the carbon dioxide's energy, improving energy release efficiency and energy utilization. The two-stage energy release also places lower demands on the manufacturing of turbine blades, thus reducing the cost of the turbine.

[0074] refer to Figure 18At least one energy storage pneumatic valve (300) in the energy storage assembly (3) and / or at least one energy release pneumatic valve (400) in the energy release assembly (4) includes a check valve, which is at least one of a first check valve (330-1), a second check valve (330-2), and a third check valve (410). The check valve includes a check valve cylinder inlet air filter pressure regulating module (510), a check valve cylinder inlet solenoid valve (520), a check valve cylinder exhaust solenoid valve (550), and a check valve cylinder (530). The valve cylinder (530) includes a check valve spring (540), a check valve cylinder inlet filter pressure regulating module (510) connected to the inlet end of the check valve cylinder inlet solenoid valve (520), the outlet end of the check valve cylinder inlet solenoid valve (520) connected to the inlet end of the check valve cylinder (530), and the outlet end of the check valve cylinder (530) connected to the check valve cylinder exhaust solenoid valve (550); the check valve also includes a check valve body (560), and the check valve cylinder (530) is also connected to the check valve body (560).

[0075] And / or, see reference Figure 19 At least one energy storage pneumatic valve (300) in the energy storage component (3) and / or at least one energy release pneumatic valve (400) in the energy release component (4) includes a return valve, which is at least one of a first return valve (310-12) and a second return valve (310-22). The return valve includes a return valve cylinder inlet filter pressure regulating module (610), a valve positioning regulator (620), a return valve cylinder exhaust solenoid valve (650), a return valve cylinder (630), and a return valve spring (640). The return valve cylinder inlet filter pressure regulating module (610) is connected to the valve positioning regulator (620), the valve positioning regulator (620) is connected to the inlet end of the return valve cylinder (630), the outlet end of the return valve cylinder (630) is connected to the return valve cylinder exhaust solenoid valve (650), and the return valve spring (640) is connected to the return valve cylinder (630). The reflux valve also includes a reflux valve body (660), a reflux valve spring (640), and a reflux valve cylinder (630) which are also connected to the reflux valve body (660).

[0076] It should be noted that the check valve and reflux valve are merely examples of pneumatic valves, and their structures are only examples; they can be common check valves and reflux valves available on the market. Furthermore, check valves, reflux valves, and other types of valves capable of performing the corresponding functions of pneumatic valves are all within the scope of protection of this application. It should also be noted that the above embodiments can be implemented individually or in combination, and this application does not impose any limitations on this.

[0077] Figure 20This is a flowchart illustrating a control method for a gas source system applied to an energy storage system, provided in an exemplary embodiment of this application. The method is executed by a computer device, which may be... Figure 1 The computer device 110 shown. This method can be applied to the aforementioned... Figures 2 to 9 ,as well as Figures 15 to 17 The gas source system shown is used in an energy storage system, wherein the gas storage tank in the energy storage system is used to store gaseous carbon dioxide, and the gas source compressor is used to compress the carbon dioxide flowing out of the gas storage tank.

[0078] For example, the method may specifically include steps 2020 and 2040: Step 2020: Control the opening of the gas storage outlet and the gas source compressor to make the carbon dioxide compressed by the gas source compressor drive at least one energy storage pneumatic valve in the energy storage component to work, and / or to make the carbon dioxide compressed by the gas source compressor drive at least one energy release pneumatic valve in the energy release component to work.

[0079] Specifically, the computer equipment controls the opening of the outlet (air outlet) of the gas storage tank and the gas source compressor, so that the gas supply main pipe between the gas storage tank and the gas source compressor is connected, the gas supply main pipe between the gas source compressor and at least one energy storage pneumatic valve in the energy storage component is connected, and / or, the gas supply main pipe between the gas source compressor and at least one energy release pneumatic valve in the energy release component is connected.

[0080] At room temperature and pressure, gaseous carbon dioxide flows into the gas source compressor through the gas supply header. The gas source compressor compresses the carbon dioxide, and the compressed carbon dioxide flows into at least one energy storage pneumatic valve in the energy storage component through the gas supply header, actuating at least one energy storage pneumatic valve in the energy storage component. And / or, the compressed carbon dioxide flows into at least one energy release pneumatic valve in the energy release component through the gas supply header, actuating at least one energy release pneumatic valve in the energy release component.

[0081] At least one energy storage pneumatic valve in the energy storage component and at least one energy release pneumatic valve in the energy release component include at least one of the aforementioned first check valve, second check valve, third check valve, first regulating valve, second regulating valve, and PCV valve. Specifically, the first regulating valve includes a first anti-surge valve and / or a first return valve, and the second regulating valve specifically includes a second anti-surge valve and / or a second return valve.

[0082] Step 2040: Control the opening of the gas storage tank inlet to allow carbon dioxide driving at least one energy storage pneumatic valve in the energy storage component to flow back into the gas storage tank, and / or to allow carbon dioxide driving at least one energy release pneumatic valve in the energy release component to flow back into the gas storage tank.

[0083] Specifically, the computer equipment controls the opening of the gas storage tank's inlet (air intake end), connecting at least one energy storage pneumatic valve in the energy storage component to the return gas main pipe between the gas storage tank, and / or connecting at least one energy release pneumatic valve in the energy release component to the return gas main pipe between the gas storage tank.

[0084] Since the gas source system used in the energy storage system forms a closed loop, the carbon dioxide that drives at least one energy storage pneumatic valve in the energy storage component will flow to the gas storage tank through the return gas main pipe, and / or, the carbon dioxide that drives at least one energy release pneumatic valve in the energy release component will flow back to the gas storage tank.

[0085] In summary, the control method for the gas source system of an energy storage system provided in this application controls the opening of the gas storage tank outlet and the gas source compressor, so that the carbon dioxide compressed by the gas source compressor drives at least one energy storage pneumatic valve in the energy storage component to operate, and / or so that the carbon dioxide compressed by the gas source compressor drives at least one energy release pneumatic valve in the energy release component to operate; controls the opening of the gas storage tank inlet, so that the carbon dioxide driving at least one energy storage pneumatic valve in the energy storage component flows back into the gas storage tank, and / or so that the carbon dioxide driving at least one energy release pneumatic valve in the energy release component flows back into the gas storage tank. At least one energy storage pneumatic valve in the energy storage component and / or at least one energy release pneumatic valve in the energy release component can be pneumatically driven by the carbon dioxide of the energy storage system itself, eliminating the need to install other devices in the energy storage system, reducing the cost of the energy storage system. Furthermore, the carbon dioxide can be returned to the gas storage tank after use, realizing the recycling of carbon dioxide and avoiding waste. The aforementioned pneumatic valves can be quickly opened and closed using carbon dioxide, effectively preventing system overpressure and equipment reverse rotation, and achieving safe and stable operation of the energy storage system.

[0086] Next, taking a specific valve as an example, we will explain in detail the gas-driven method of pneumatic valves.

[0087] In some embodiments, the pneumatic valve includes a check valve, which is at least one of the aforementioned first check valve, second check valve, and third check valve. (Reference) Figure 18 The check valve includes a check valve cylinder inlet air filter pressure regulating module 510, a check valve cylinder inlet solenoid valve 520, a check valve cylinder exhaust solenoid valve 550, and a check valve cylinder 530. The check valve cylinder 530 includes a check valve spring 540.

[0088] Specifically, the check valve cylinder inlet filter pressure regulating module 510 is connected to the inlet of the check valve cylinder inlet solenoid valve 520, the outlet of the check valve cylinder inlet solenoid valve 520 is connected to the inlet of the check valve cylinder 530, and the outlet of the check valve cylinder 530 is connected to the inlet of the check valve cylinder exhaust solenoid valve 550. Optionally, the check valve cylinder inlet filter pressure regulating module 510, the check valve cylinder inlet solenoid valve 520, and the check valve cylinder exhaust solenoid valve 550 establish communication connections with computer equipment.

[0089] The check valve cylinder inlet filter pressure regulating module 510 is used to regulate the pressure of carbon dioxide entering the check valve cylinder 530. The check valve cylinder inlet solenoid valve 520 is used to control the entry of carbon dioxide into the check valve cylinder 530. The check valve cylinder exhaust solenoid valve 550 is used to control the discharge of carbon dioxide from the check valve cylinder 530. The check valve cylinder 530 is used to contain carbon dioxide.

[0090] For example, the pneumatic control of the check valve includes steps 501, 502, and 503: Step 501: Control the opening of the check valve cylinder air intake filter pressure regulating module so that the pressure reaches the preset valve air source working pressure range of the check valve.

[0091] Optionally, the computer equipment, based on the current system pressure of the energy storage system, regulates the pressure of carbon dioxide entering the check valve by controlling the air intake filter pressure regulating module of the check valve cylinder, so that the pressure reaches the preset valve air source operating pressure range of the check valve. In one example, the preset valve air source operating pressure range is 0.4MPa-1.0MPa, and can be further specified to be between 0.4MPa-0.8MPa.

[0092] Step 502: Control the opening of the check valve cylinder intake solenoid valve to allow carbon dioxide to enter the check valve cylinder. The carbon dioxide is used to overcome the resistance of the check valve spring and drive the limit switch of the check valve to release and open.

[0093] Optionally, the computer equipment controls the opening of the inlet solenoid valve of the check valve cylinder to allow carbon dioxide to enter the check valve cylinder. The carbon dioxide is used to overcome the resistance of the check valve spring. The limit switch of the check valve pressure plate is released and opened. After the compressor of the energy storage system starts, it drives the check valve to open under the action of the carbon dioxide airflow.

[0094] Step 503: Control the opening of the check valve cylinder exhaust solenoid valve so that the carbon dioxide in the check valve cylinder is discharged to the return gas header, the pressure in the check valve cylinder is released, and the check valve closes under the self-weight of the check valve spring and the check valve disc.

[0095] The check valve disc automatically opens or closes under the pressure of carbon dioxide to control the flow direction of carbon dioxide. The check valve spring is usually installed below the check valve disc to push it closed. Under the pressure of carbon dioxide, the spring extends and retracts, causing the check valve disc to close quickly, achieving unidirectional flow of carbon dioxide. During operation, carbon dioxide enters the check valve, and the valve disc is pushed open by the pressure of the carbon dioxide. When the carbon dioxide stops flowing or flows in the opposite direction, the pressure reverses, and the reverse pressure exerts a force on the inside of the check valve disc, causing it to close and preventing backflow of carbon dioxide.

[0096] Optionally, the computer equipment controls the opening of the check valve cylinder exhaust solenoid valve, so that the carbon dioxide in the check valve cylinder is discharged to the return gas header, the pressure in the check valve cylinder is released, and the check valve is driven to close under the self-weight force of the check valve spring and the check valve disc.

[0097] In this embodiment, carbon dioxide from the energy storage system provides the control power source for the check valves in the energy storage and / or energy release components. Furthermore, the check valve can be quickly closed when the compressor and turbine stop operating, effectively preventing compressor and turbine reversal and ensuring the safe and stable operation of the energy storage system. Specifically, the check valve not only has the quick-opening and quick-closing functions of an on / off valve, but also uses carbon dioxide to control the check valve plate limit. The check valve can only open during operation after the check valve plate limit is released. When the check valve plate limit is closed, the check valve closes under the force of the check valve spring and the valve disc's own weight, thus enabling rapid control of the check valve using carbon dioxide from the energy storage system.

[0098] In some embodiments, the pneumatic valve includes a return valve, which is at least one of the aforementioned first and second return valves. (Reference) Figure 19 The reflux valve includes a reflux valve cylinder inlet air filter pressure regulating module 610, a valve positioning regulator 620, a reflux valve cylinder exhaust solenoid valve 650, a reflux valve cylinder 630, and a reflux valve spring 640.

[0099] Specifically, the reflux valve cylinder inlet air filter pressure regulating module 610 is connected to the valve positioning regulator 620. The valve positioning regulator 620 is also connected to the inlet of the reflux valve cylinder 630. The outlet of the reflux valve cylinder 630 is connected to the inlet of the reflux valve cylinder exhaust solenoid valve 650. The reflux valve spring 640 is connected to the reflux valve cylinder 630. Optionally, the reflux valve cylinder inlet air filter pressure regulating module 610, the valve positioning regulator 620, and the reflux valve cylinder exhaust solenoid valve 650 can each establish a communication connection with a computer device.

[0100] The reflux valve cylinder intake filter pressure regulating module 610 is used to regulate the pressure of carbon dioxide entering the reflux valve cylinder 630. The valve positioning regulator 620 is used to control the entry of carbon dioxide into the reflux valve cylinder 630 and regulate the intake volume based on the control command of the reflux valve and the valve position feedback signal. The reflux valve cylinder exhaust solenoid valve 650 is used to control the discharge of carbon dioxide from the reflux valve cylinder 630, which is used to contain carbon dioxide.

[0101] For example, the pneumatic control of the return valve includes steps 601, 602, and 603: Step 601: Control the opening of the reflux valve cylinder air intake filter pressure regulating module so that the pressure reaches the preset valve working pressure range of the reflux valve.

[0102] Optionally, the computer equipment, based on the current pressure of the energy storage system, regulates the pressure of carbon dioxide entering the return valve by controlling the air intake filter pressure regulating module of the return valve cylinder, so that the pressure reaches the preset valve operating pressure range of the return valve. In one example, the preset valve air source operating pressure range is 0.4MPa-1.0MPa, and can be further specified to be between 0.4MPa-0.8MPa.

[0103] Step 602: Adjust the air intake of the return valve through the valve positioning regulator so that carbon dioxide enters the return valve cylinder. The carbon dioxide is used to overcome the resistance of the return valve spring and drive the return valve to open to the preset opening degree.

[0104] Optionally, the computer equipment adjusts the air intake of the return valve through a valve positioning regulator so that carbon dioxide enters the return valve cylinder. The carbon dioxide is used to overcome the resistance of the return valve spring and drive the return valve to open to a preset degree.

[0105] Step 603: Control the opening of the reflux valve cylinder exhaust solenoid valve to allow the carbon dioxide in the reflux valve cylinder to be discharged, thereby driving the reflux valve to close.

[0106] Optionally, the computer equipment controls the opening of the exhaust solenoid valve of the reflux valve cylinder to allow the carbon dioxide in the reflux valve cylinder to be discharged, the pressure of the reflux valve to be released, and the reflux valve to be driven to close.

[0107] In this embodiment, carbon dioxide from the energy storage system provides the control power source for the reflux valve in the energy storage component, enabling the safe and stable operation of the energy storage system. Specifically, this reflux valve is a regulating valve that not only has the quick-opening and quick-closing functions of an on / off valve, but also achieves full-range automatic regulation by adjusting the intake air volume. Thus, the reflux valve can be rapidly controlled using carbon dioxide from the energy storage system.

[0108] In some embodiments, at least one of the following needs to be confirmed before and during the commissioning of pneumatic valves in an energy storage system: 1. Valve status of the pipeline between the gas storage facility and the gas storage tank; 2. Establishment and maintenance of carbon dioxide pressure in the storage tank; 3. The gas storage tank should be drained regularly.

[0109] The following describes the contents of the above embodiments: Optionally, the computer equipment also controls the opening of the inlet and outlet of the gas source compressor, and controls the opening of the inlet of the gas storage tank, to ensure pipeline connectivity between the gas storage tank and the gas storage facility. In some embodiments, the inlet of the gas source compressor is equipped with a main inlet valve and an inlet electric valve, the outlet of the gas source compressor is equipped with an outlet electric valve, and the inlet of the gas storage tank is equipped with a gas storage tank inlet valve. The computer equipment controls the opening of the aforementioned main inlet valve, inlet electric valve, outlet electric valve, and gas storage tank inlet valve to ensure pipeline connectivity between the gas storage tank and the gas storage facility, allowing carbon dioxide in the gas storage facility to enter the gas storage tank, further causing the carbon dioxide in the gas storage tank to drive at least one energy storage pneumatic valve in the energy storage component and / or at least one energy release pneumatic valve in the energy release component to operate.

[0110] Optionally, the computer equipment controls the start of the gas source compressor to pressurize the gas storage tank; when the pressure in the gas storage tank reaches a preset pressure, the computer controls the stop of the gas source compressor. In some embodiments, a gas source compressor inlet filter is installed at the inlet of the gas source compressor. Before controlling the start of the gas source compressor, it is necessary to confirm that the gas source compressor inlet filter is in a clean state. This clean state can be determined by personnel and indicated to the computer equipment, or a cleanliness detection element can be installed on the gas source compressor inlet filter to detect whether it is in a clean state and indicate this to the computer equipment. In other embodiments, when the pressure in the gas storage tank is lower than the minimum pressure, the computer controls the start of the gas source compressor again or automatically starts it. As an example, the minimum pressure can be set to 0.5 MPa.

[0111] Optionally, the gas storage tank is also equipped with a drain valve. A computer device controls the opening of the drain valve to drain moisture from the gas storage tank. In some embodiments, the drain valve can be controlled to open according to a set cycle, which can be set on a daily or monthly basis. In other embodiments, a level gauge is also installed inside the gas storage tank to measure the water level inside. When the water level inside the gas storage tank exceeds a preset level, the computer device controls the opening of the drain valve. This preset water level can be set according to the technical requirements of the actual application scenario.

[0112] Figure 21This is a block diagram of a control device 2100 for a gas source system applied to an energy storage system, provided in an exemplary embodiment of this application. The gas source system applied to the energy storage system can be as described above. Figures 2 to 9 ,as well as Figures 15 to 17 The illustrated gas source system is used in an energy storage system. The gas storage tank stores gaseous carbon dioxide, and the gas source compressor compresses the carbon dioxide. The control device 2100 for this gas source system includes a first control module 2110 and a second control module 2120. The first control module 2110 is used to control the opening of the gas storage tank and the gas source compressor, so that the carbon dioxide compressed by the gas source compressor drives at least one energy storage pneumatic valve in the energy storage component to work, and / or so that the carbon dioxide compressed by the gas source compressor drives at least one energy release pneumatic valve in the energy release component to work. The second control module 2120 is used to control the opening of the inlet of the gas storage tank so that carbon dioxide driving at least one energy storage pneumatic valve in the energy storage component flows back into the gas storage tank, and / or so that carbon dioxide driving at least one energy release pneumatic valve in the energy release component flows back into the gas storage tank.

[0113] In some embodiments, the first control module 2110 is further configured to control the opening of the air intake filter and pressure regulating module of the check valve cylinder, so that the pressure reaches the preset valve air source working pressure range of the check valve; control the opening of the air intake solenoid valve of the check valve cylinder, so that the carbon dioxide enters the check valve cylinder, the carbon dioxide is used to overcome the resistance of the check valve spring and drive the limit switch of the check valve to release and open; control the opening of the exhaust solenoid valve of the check valve cylinder, so that the carbon dioxide in the check valve cylinder is discharged to the return air header, the pressure of the check valve cylinder is released, and the check valve closes under the self-weight force of the check valve spring and the check valve disc.

[0114] In some embodiments, the first control module 2110 is used to control the opening of the air intake filter pressure regulating module of the return valve cylinder so that the pressure reaches the preset valve working pressure range of the return valve; to adjust the air intake of the return valve through the valve positioning regulator so that the carbon dioxide enters the return valve cylinder, the carbon dioxide is used to overcome the resistance of the return valve spring and drive the return valve to open to a preset opening degree; and to control the opening of the exhaust solenoid valve of the return valve cylinder so that the carbon dioxide in the return valve cylinder is discharged and the return valve is driven to close.

[0115] In some embodiments, the device may also include a third control module; the third control module is used to control the opening of the inlet and outlet of the gas source compressor, and to control the opening of the inlet of the gas storage tank, so as to ensure that the pipeline between the gas storage tank and the gas storage facility is connected.

[0116] In some embodiments, the third control module is used to control the start of the gas source compressor to pressurize the gas storage tank; and to control the stop of the gas source compressor when the pressure in the gas storage tank reaches a preset pressure.

[0117] In some embodiments, the third control module is used to control the opening of the outlet of the gas storage tank so that the carbon dioxide enters the purification component to obtain carbon dioxide of a preset purity.

[0118] In some embodiments, the third control module is configured to control the opening of the soot blowing valve according to a set cycle, so that the carbon dioxide enters the flue gas heat exchanger, and to control the opening of the drain valve, so as to discharge dust and impurities from the flue gas heat exchanger.

[0119] It should be noted that the specific limitations of the control device 2100 for the gas source system of the energy storage system provided above can be found in the limitations of the control method for the gas source system of the energy storage system above, and will not be repeated here. Each module of the above device can be implemented entirely or partially by software, hardware, or a combination thereof. Each module can be embedded in the processor of the computer device in hardware form or independent of the processor of the computer device, or it can be stored in the memory of the computer device in software form, so that the processor can call and execute the operation corresponding to each module.

[0120] This application also provides a computer device, which includes: a processor and a memory, wherein the memory stores a computer program; the processor is used to execute the computer program in the memory to implement the control method for the gas source system applied to the energy storage system provided in the above method embodiments.

[0121] For example, Figure 22 This is a structural block diagram of a computer device 1000 provided in an exemplary embodiment of this application. Optionally, the computer device 1000 is a server 1000.

[0122] Typically, server 1000 includes a processor 1001 and memory 1002.

[0123] Processor 1001 may include one or more processing cores, such as a quad-core processor, an octa-core processor, etc. Processor 1001 may be implemented using at least one hardware form selected from Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), and Programmable Logic Array (PLA). Processor 1001 may also include a main processor and a coprocessor. The main processor, also known as the Central Processing Unit (CPU), is used to process data in the wake-up state; the coprocessor is a low-power processor used to process data in the standby state. In some embodiments, processor 1001 may integrate a Graphics Processing Unit (GPU), which is responsible for rendering and drawing the content to be displayed on the screen. In some embodiments, processor 1001 may also include an Artificial Intelligence (AI) processor, which is used to handle computational operations related to machine learning.

[0124] The memory 1002 may include one or more computer-readable storage media, which may be non-transitory. The memory 1002 may also include high-speed random access memory and non-volatile memory, such as one or more disk storage devices or flash memory devices. In some embodiments, the non-transitory computer-readable storage media in the memory 1002 is used to store at least one instruction, which is executed by the processor 1001 to implement the control method for a gas source system applied to an energy storage system provided in the method embodiments of this application.

[0125] In some embodiments, the server 1000 may optionally include an input interface 1003 and an output interface 1004. The processor 1001, memory 1002, and input interfaces 1003 and 1004 can be connected via a bus or signal lines. Various peripheral devices can be connected to the input interfaces 1003 and 1004 via a bus, signal lines, or a circuit board. The input interfaces 1003 and 1004 can be used to connect at least one input / output (I / O) related peripheral device to the processor 1001 and memory 1002. In some embodiments, the processor 1001, memory 1002, and input interfaces 1003 and 1004 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor 1001, memory 1002, and input interfaces 1003 and 1004 can be implemented on separate chips or circuit boards, and this application does not limit this.

[0126] Those skilled in the art will understand that Figure 22 The structure shown does not constitute a limitation on the computer device 1000, and may include more or fewer components than shown, or combine certain components, or use different component arrangements.

[0127] This application provides a chip that includes programmable logic circuits and / or program instructions. When the chip is run on a computer device, it is used to implement the control method for a gas source system applied to an energy storage system provided in the above-described method embodiments.

[0128] This application provides a computer-readable storage medium storing a computer program, which is loaded and executed by a processor to implement the control method for a gas source system applied to an energy storage system provided in the above-described method embodiments.

[0129] This application provides a computer program product or computer program, which includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the processor of the computer device to load and execute the control method for a gas source system applied to an energy storage system provided in the above-described method embodiments.

[0130] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0131] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware or by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as a read-only memory, a disk, or an optical disk.

[0132] Those skilled in the art will recognize that the functions described in the embodiments of this application in one or more of the above examples can be implemented using hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or code on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any medium that facilitates the transfer of a computer program from one place to another. Storage media can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0133] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A gas source system for use in energy storage systems, characterized in that, The energy storage system includes a gas storage tank (1), an energy storage component (3), a liquid storage tank (9), and an energy release component (4) connected in a closed loop in sequence; the gas source system includes a gas source compressor (2). The gas storage tank (1) is connected to the air inlet end of the gas source compressor (2); The energy storage component (3) is provided with at least one energy storage pneumatic valve (300). The outlet end of the gas source compressor (2) is connected to the inlet end of at least one energy storage pneumatic valve (300) in the energy storage component (3) through a gas supply header. The outlet end of at least one energy storage pneumatic valve (300) in the energy storage component (3) is also connected to the gas storage tank (1) through a return gas header. At least one energy storage pneumatic valve (300) in the energy storage component (3) includes at least one of a first regulating valve (310-1), an energy storage safety valve (320-1), and a first check valve (330-1), wherein the first regulating valve (310-1) includes a first anti-surge valve (310-11) and / or a first reflux valve (310-12); the energy storage component (3) includes at least one stage of compression energy storage unit (30), wherein at least one energy storage pneumatic valve (300) in the energy storage component (3) is connected in parallel with the at least one stage of compression energy storage unit (30), and / or, at least one energy storage pneumatic valve (300) in the energy storage component (3) is connected in series with the at least one stage of compression energy storage unit (30), and / or, at least one energy storage pneumatic valve (300) in the energy storage component (3) is disposed on a branch of the pipeline of the at least one stage of compression energy storage unit (30); And / or, The energy release assembly (4) is provided with at least one energy release pneumatic valve (400). The outlet end of the gas source compressor (2) is connected to the inlet end of at least one energy release pneumatic valve (400) in the energy release assembly (4) through a gas supply header. The outlet end of at least one energy release pneumatic valve (400) in the energy release assembly (4) is also connected to the gas storage tank (1) through a return gas header. At least one energy-releasing pneumatic valve (400) in the energy-releasing assembly (4) includes a third check valve (410), and / or, at least one energy-releasing pneumatic valve (400) in the energy-releasing assembly (4) includes an energy-releasing safety valve (420); the energy-releasing assembly (4) includes at least one stage expansion energy-releasing section (40), at least one energy-releasing pneumatic valve (400) in the energy-releasing assembly (4) is connected in series with the at least one stage expansion energy-releasing section (40), and / or, at least one energy-releasing pneumatic valve (400) in the energy-releasing assembly (4) is disposed on a branch of the pipeline of the at least one stage expansion energy-releasing section (40).

2. The gas source system for energy storage systems according to claim 1, characterized in that, It also includes a gas storage tank (5), the outlet of the gas source compressor (2) is connected to the inlet of the gas storage tank (5); the outlet of the gas storage tank (5) is connected to the inlet of at least one energy storage pneumatic valve (300) in the energy storage component (3) through the gas supply header, and / or, the outlet of the gas storage tank (5) is connected to the inlet of at least one energy release pneumatic valve (400) in the energy release component (4) through the gas supply header.

3. The gas source system for energy storage systems according to claim 2, characterized in that, It also includes a purification component (6), the air inlet of the gas storage tank (5) is connected to the air inlet of the purification component (6); the air outlet of the purification component (6) is connected to the air inlet of at least one energy storage pneumatic valve (300) in the energy storage component (3) through the air supply header, and / or, the air outlet of the purification component (6) is connected to the air inlet of at least one energy release pneumatic valve (400) in the energy release component (4) through the air supply header; And / or, It also includes a gas detection element (600), the inlet end of the gas storage tank (5) is connected to the inlet end of the gas detection element (600); the outlet end of the gas detection element (600) is connected to the inlet end of at least one energy storage pneumatic valve (300) in the energy storage assembly (3) through the gas supply header, and / or, the outlet end of the gas detection element (600) is connected to the inlet end of at least one energy release pneumatic valve (400) in the energy release assembly (4) through the gas supply header, and / or, the outlet end of the gas detection element (600) is connected to the inlet end of the purification assembly (6) through the gas supply header; And / or, It also includes a flue gas heat exchanger (7), a soot blowing valve (710) and a drain valve (720). The soot blowing valve (710) is located between the gas storage tank (5) and the flue gas heat exchanger (7). The outlet of the flue gas heat exchanger (7) is connected to the inlet of the drain valve (720), and the outlet of the drain valve (720) is connected to the external environment.

4. The gas source system applied to an energy storage system according to any one of claims 1 to 3, characterized in that, It is also coupled to the CCUS system (8), and the gas source system applied to the energy storage system is connected to the CCUS system (8) through a gas supply pipeline so that the gaseous carbon dioxide captured by the CCUS system (8) is supplied to the energy storage system and / or the gas source system applied to the energy storage system. The CCUS system (8) includes a CCUS compressor (81) connected to the gas storage tank (1) via the gas supply line, and / or the CCUS compressor (81) is connected to the inlet of at least one energy storage pneumatic valve (300) in the energy storage assembly (3) via the gas supply line, and / or the CCUS compressor (81) is connected to the inlet of at least one energy release pneumatic valve (400) in the energy release assembly (4) via the gas supply line.

5. The gas source system applied to an energy storage system according to any one of claims 1 to 3, characterized in that, The energy storage component (3) includes at least two stages of compression energy storage, including a first stage compression energy storage (31) and a second stage compression energy storage (32). At least one pneumatic valve (300) in the energy storage component (3) further includes at least one of a second regulating valve (310-2), a pressure control valve (320-2), and a second check valve (330-2). The first regulating valve (310-1) is connected in parallel with the first stage compression energy storage (31), and the second regulating valve (310-2) is connected in parallel with the second stage compression energy storage. The energy storage units (32) are connected in parallel. The energy storage safety valve (320-1) and / or the pressure control valve (320-2) are located on a branch of the pipeline between the first-stage compression energy storage unit (31) and the second-stage compression energy storage unit (32). The first check valve (330-1) is connected in series with the first-stage compression energy storage unit (31), and the second check valve (330-2) is connected in series with the second-stage compression energy storage unit (32). The second regulating valve (310-2) includes a second anti-surge valve (310-21) and / or a second reflux valve (310-22). And / or, The energy release assembly (4) includes at least two stages of expansion energy release section, including a first stage expansion energy release section (41) and a second stage expansion energy release section (42). The third check valve (410) is disposed between the first stage expansion energy release section (41) and the second stage expansion energy release section (42), and / or, the energy release safety valve (420) is disposed on a branch of the pipeline between the first stage expansion energy release section (41) and the second stage expansion energy release section (42).

6. The gas source system for an energy storage system according to claim 5, characterized in that, At least one energy storage pneumatic valve (300) in the energy storage component (3) and / or at least one energy release pneumatic valve (400) in the energy release component (4) includes a check valve, wherein the check valve is at least one of the first check valve (330-1), the second check valve (330-2), and the third check valve (410), and the check valve includes a check valve cylinder inlet air filter pressure regulating module (510), a check valve cylinder inlet solenoid valve (520), and a check valve cylinder exhaust solenoid valve. Valve (550), check valve cylinder (530), the check valve cylinder (530) includes a check valve spring (540), the check valve cylinder inlet filter pressure regulating module (510) is connected to the inlet end of the check valve cylinder inlet solenoid valve (520), the outlet end of the check valve cylinder inlet solenoid valve (520) is connected to the inlet end of the check valve cylinder (530), and the outlet end of the check valve cylinder (530) is connected to the check valve cylinder exhaust solenoid valve (550). And / or, At least one energy storage pneumatic valve (300) in the energy storage assembly (3) and / or at least one energy release pneumatic valve (400) in the energy release assembly (4) includes a return valve, which is at least one of the first return valve (310-12) and the second return valve (310-22). The return valve includes a return valve cylinder inlet air filter pressure regulating module (610), a valve positioning regulator (620), and a return valve cylinder exhaust solenoid valve (650). The system includes a return valve cylinder (630) and a return valve spring (640). The air intake filter and pressure regulating module (610) of the return valve cylinder is connected to the valve positioning regulator (620). The valve positioning regulator (620) is connected to the air intake end of the return valve cylinder (630). The air outlet end of the return valve cylinder (630) is connected to the exhaust solenoid valve (650) of the return valve cylinder. The return valve spring (640) is connected to the return valve cylinder (630).

7. A control method for a gas source system applied to an energy storage system, characterized in that, The gas source system applied to the energy storage system refers to the gas source system applied to the energy storage system as described in any one of claims 1 to 6, wherein the gas storage tank is used to store gaseous carbon dioxide, and the gas source compressor is used to compress the carbon dioxide; the method includes: Control the opening of the outlet of the gas storage tank and the gas source compressor, so that the carbon dioxide compressed by the gas source compressor drives at least one energy storage pneumatic valve in the energy storage component to work, and / or so that the carbon dioxide compressed by the gas source compressor drives at least one energy release pneumatic valve in the energy release component to work. The gas storage tank inlet is opened to allow carbon dioxide that drives at least one pneumatic valve in the energy storage assembly to flow back into the gas storage tank, and / or to allow carbon dioxide that drives at least one pneumatic valve in the energy release assembly to flow back into the gas storage tank.

8. The method according to claim 7, characterized in that, The check valve includes a check valve cylinder inlet air filter pressure regulating module, a check valve cylinder inlet solenoid valve, a check valve cylinder exhaust solenoid valve, and a check valve cylinder, wherein the check valve cylinder includes a check valve spring; the method further includes: Control the opening of the check valve cylinder air intake filter pressure regulating module so that the pressure reaches the preset valve air source working pressure range of the check valve; The control opens the air intake solenoid valve of the check valve cylinder, so that the carbon dioxide enters the check valve cylinder. The carbon dioxide is used to overcome the resistance of the check valve spring and drive the limit switch of the check valve to release and open. The control opens the exhaust solenoid valve of the check valve cylinder, so that the carbon dioxide in the check valve cylinder is discharged to the return gas header, the pressure of the check valve cylinder is released, and the check valve closes under the weight of the check valve spring and the check valve disc. And / or, The reflux valve includes a reflux valve cylinder inlet air filter pressure regulating module, a valve positioning regulator, a reflux valve cylinder exhaust solenoid valve, a reflux valve cylinder, and a reflux valve spring; the method further includes: Control the opening of the air intake filter and pressure regulating module of the return valve cylinder so that the pressure reaches the preset valve working pressure range of the return valve; The air intake of the return valve is adjusted by the valve positioning regulator so that the carbon dioxide enters the return valve cylinder. The carbon dioxide is used to overcome the resistance of the return valve spring and drive the return valve to open to a preset opening degree. The solenoid valve for venting the reflux valve cylinder is opened to allow carbon dioxide to be discharged from the reflux valve cylinder, thereby driving the reflux valve to close.

9. A control device for a gas source system applied to an energy storage system, characterized in that, The gas source system applied to the energy storage system refers to the gas source system applied to the energy storage system as described in any one of claims 1 to 6, wherein the gas storage tank is used to store gaseous carbon dioxide, and the gas source compressor is used to compress the carbon dioxide; the device includes: The first control module is used to control the opening of the gas storage tank and the gas source compressor, so that the carbon dioxide compressed by the gas source compressor drives at least one energy storage pneumatic valve in the energy storage component to work, and / or so that the carbon dioxide compressed by the gas source compressor drives at least one energy release pneumatic valve in the energy release component to work. The second control module is used to control the opening of the inlet of the gas storage tank so that carbon dioxide driving at least one energy storage pneumatic valve in the energy storage component flows back into the gas storage tank, and / or so that carbon dioxide driving at least one energy release pneumatic valve in the energy release component flows back into the gas storage tank.

10. A computer device, characterized in that, The computer device includes a processor and a memory, the memory storing a computer program, which is loaded and executed by the processor to implement the control method for a gas source system applied to an energy storage system as described in claim 7 or 8.

11. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, which is loaded and executed by a processor to implement the control method for a gas source system applied to an energy storage system as described in claim 7 or 8.

12. A computer program product, characterized in that, The computer program product includes computer instructions stored in a computer-readable storage medium. A processor retrieves the computer instructions from the computer-readable storage medium, causing the processor to load and execute them to implement the control method for a gas source system applied to an energy storage system as described in claim 7 or 8.

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