Modular integrated compressed air energy storage device

Abstract

The utility model relates to a modularized integrated compressed air energy storage device which comprises a compression subsystem, a turbine subsystem, an air storage subsystem and a heat storage subsystem, the compression subsystem comprises at least one compression module, the first end of each compression module is connected with the first end of the heat storage subsystem through a heat conveying pipeline, and the second end of each compression module is connected with the second end of the heat storage subsystem through a turbine. The second end of each compression module is connected with the second end of the heat storage subsystem through a heat conveying pipeline, and the third end of each compression module is connected with the first end of the gas storage subsystem through a gas conveying pipeline. The turbine subsystem comprises at least one turbine module, the first end of each turbine module is connected with the third end of the heat storage subsystem through a heat conveying pipeline, and the second end of each turbine module is connected with the fourth end of the heat storage subsystem through a heat conveying pipeline. The third end of each turbine module is connected with the second end of the gas storage subsystem through a gas conveying pipeline. Therefore, the problem of contradiction between large-scale energy storage requirements and cost control is solved, and the large-scale energy storage requirements can be met while the cost can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of compressed air energy storage, in particular to a modular integrated compressed air energy storage device. BACKGROUND

[0002] In the new power system, with the increasing proportion of new energy access, the system faces challenges such as reduced inertia and reduced frequency modulation capability, and the introduction of large-scale energy storage can effectively improve the system's ability to cope with these challenges. In related technologies, compressed air energy storage stands out among large-scale energy storage solutions due to its low unit capacity cost, long life cycle and other advantages.

[0003] Under the background of the increasing proportion of new energy access, the required energy storage scale is also increasing, and large-scale compressed air energy storage can fill this gap. However, the cost of large-capacity compressors and turbines is high, and the relationship between cost and capacity is not just linear growth. The original single compression side and single turbine side structure still has the problem of high cost, which needs to be solved urgently. CONTENT OF THE INVENTION

[0004] The present application provides a modular integrated compressed air energy storage device to solve the problem of high cost of large-capacity modular integrated compressed air energy storage device, large-scale energy storage demand and cost control contradiction, and the present application can meet the large-scale energy storage demand while reducing the cost through modular design, and provide a more flexible and economical energy storage solution for the new power system.

[0005] The first aspect of the present application provides a modular integrated compressed air energy storage device, comprising: a compression subsystem, a turbine subsystem, a gas storage subsystem and a heat storage subsystem, wherein,

[0006] The compression subsystem comprises at least one group of compression modules, the first end of each group of compression modules is connected to the first end of the heat storage subsystem through a heat transfer pipeline, the second end of each group of compression modules is connected to the second end of the heat storage subsystem through a heat transfer pipeline, and the third end of each group of compression modules is connected to the first end of the gas storage subsystem through a gas transfer pipeline;

[0007] The turbine subsystem comprises at least one group of turbine modules, the first end of each group of turbine modules is connected to the third end of the heat storage subsystem through a heat transfer pipeline, the second end of each group of turbine modules is connected to the fourth end of the heat storage subsystem through a heat transfer pipeline, and the third end of each group of turbine modules is connected to the second end of the gas storage subsystem through a gas transfer pipeline.

[0008] Optionally, each group of compression modules comprises a low-pressure compression module and a high-pressure compression module, wherein,

[0009] a low-pressure compression module, one end of the low-pressure compression module being connected with the first end of the heat storage subsystem, the other end of the low-pressure compression module being connected with the first end of the high-pressure compression module;

[0010] the second end of the high-pressure compression module being connected with the second end of the heat storage subsystem, the third end of the high-pressure compression module being connected with the first end of the gas storage subsystem.

[0011] Optionally, the low-pressure compression module comprises:

[0012] a low-pressure compressor;

[0013] a first heat exchanger, one end of the first heat exchanger being connected with the tail end of the low-pressure compressor, the other end of the first heat exchanger being connected with the heat storage subsystem and the high-pressure compression module respectively.

[0014] Optionally, the high-pressure compression module comprises:

[0015] a high-pressure compressor, one end of the high-pressure compressor being connected with the other end of the first heat exchanger;

[0016] a second heat exchanger, one end of the second heat exchanger being connected with the tail end of the high-pressure compressor, the other end of the second heat exchanger being connected with the gas storage subsystem and the heat storage subsystem respectively.

[0017] Optionally, each set of turbine module comprises a low-pressure turbine module and a high-pressure turbine module, wherein,

[0018] a low-pressure turbine module, one end of the low-pressure turbine module being connected with the third end of the heat storage subsystem, the other end of the low-pressure turbine module being connected with the first end of the high-pressure turbine module;

[0019] the second end of the high-pressure turbine module being connected with the fourth end of the heat storage subsystem, the third end of the high-pressure turbine module being connected with the second end of the gas storage subsystem.

[0020] Optionally, the high-pressure turbine module comprises:

[0021] a high-pressure turbine;

[0022] a third heat exchanger, one end of the third heat exchanger being connected with the head end of the high-pressure turbine, the other end of the third heat exchanger being connected with the heat storage subsystem and the gas storage subsystem respectively.

[0023] Optionally, the low-pressure turbine module comprises:

[0024] a low-pressure turbine;

[0025] A fourth heat exchanger, one end of the fourth heat exchanger is connected with the first end of the low-pressure turbine, and the other end of the fourth heat exchanger is connected with the gas storage subsystem and the high-pressure turbine module respectively.

[0026] Optionally, the gas storage subsystem comprises:

[0027] A gas storage subunit, a first end of the gas storage subunit is connected with the compression subunit, and a second end of the gas storage subunit is connected with the turbine subunit;

[0028] A first monitoring subunit, the first monitoring subunit is connected with the gas storage subunit;

[0029] A first safety subunit, the first safety subunit is connected with the gas storage subunit.

[0030] Optionally, the heat storage subsystem comprises:

[0031] A first heat storage unit, one end of the first heat storage unit is connected with the first end of each compression module, and the other end of the first heat storage unit is connected with the first end of each turbine module;

[0032] A second heat storage unit, one end of the second heat storage unit is connected with the second end of each compression module, and the other end of the second heat storage unit is connected with the second end of each turbine module.

[0033] Optionally, a control unit, the control unit is connected with the compression subunit and the turbine subunit respectively, and is used for power distribution of the compression subunit and the turbine subunit respectively.

[0034] Therefore, the modular integrated compressed air energy storage device of the application comprises a compression subunit, a turbine subunit, a gas storage subunit and a heat storage subunit, wherein the compression subunit comprises at least one compression module, a first end of each compression module is connected with a first end of the heat storage subunit through a heat transfer pipeline, a second end of each compression module is connected with a second end of the heat storage subunit through a heat transfer pipeline, and a third end of each compression module is connected with a first end of the gas storage subunit through a gas transfer pipeline; the turbine subunit comprises at least one turbine module, a first end of each turbine module is connected with a third end of the heat storage subunit through a heat transfer pipeline, a second end of each turbine module is connected with a fourth end of the heat storage subunit through a heat transfer pipeline, and a third end of each turbine module is connected with a second end of the gas storage subunit through a gas transfer pipeline. Therefore, the contradiction between large-scale energy storage demand and cost control is solved, the modular design of the application can meet the large-scale energy storage demand while reducing the cost, and a more flexible and economical energy storage scheme is provided for a new type of power system.

[0035] Additional aspects and advantages of the present application will be made apparent by the following description and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0036] The above and / or additional aspects and advantages of the present application will become apparent and be more readily understood through consideration of the following description, taken in conjunction with the accompanying drawings, in which:

[0037] Figure 1 A schematic diagram of a modular integrated compressed air energy storage device provided by embodiments of the present application. DETAILED DESCRIPTION

[0038] Embodiments of the present application are described in detail below with reference to the attached drawing figures, wherein the same or like reference numerals are used throughout the figures to refer to the same or like elements or elements having the same or similar functionality. The embodiments described below are illustrative and are not meant to be limiting to the application as defined by the claims.

[0039] A modular integrated compressed air energy storage device of embodiments of the present application is described below with reference to the attached drawing figures. In view of the contradiction between large-scale energy storage demand and cost control mentioned in the above background section, the present application provides a modular integrated compressed air energy storage device, which includes a compression subsystem, a turbine subsystem, a gas storage subsystem, and a heat storage subsystem. The compression subsystem includes at least one set of compression modules. The first end of each set of compression modules is connected to the first end of the heat storage subsystem through a heat transfer pipeline. The second end of each set of compression modules is connected to the second end of the heat storage subsystem through a heat transfer pipeline. The third end of each set of compression modules is connected to the first end of the gas storage subsystem through a gas transfer pipeline. The turbine subsystem includes at least one set of turbine modules. The first end of each set of turbine modules is connected to the third end of the heat storage subsystem through a heat transfer pipeline. The second end of each set of turbine modules is connected to the fourth end of the heat storage subsystem through a heat transfer pipeline. The third end of each set of turbine modules is connected to the second end of the gas storage subsystem through a gas transfer pipeline. Thus, the contradiction between large-scale energy storage demand and cost control is solved. The modular design of the present application can meet the large-scale energy storage demand while reducing costs, providing a more flexible and economical energy storage solution for new power systems.

[0040] Specifically, Figure 1 A schematic diagram of a modular integrated compressed air energy storage device provided by embodiments of the present application.

[0041] As Figure 1 shown, the modular integrated compressed air energy storage device 10 includes the following steps: a compression subsystem 100, a turbine subsystem 200, a gas storage subsystem 300, and a heat storage subsystem 400.

[0042] The compression subsystem 100 comprises at least one set of compression modules, a first end of each set of compression modules is connected to a first end of the heat storage subsystem 400 through a heat transfer pipeline, a second end of each set of compression modules is connected to a second end of the heat storage subsystem 400 through the heat transfer pipeline, and a third end of each set of compression modules is connected to a first end of the gas storage subsystem 300 through a gas transfer pipeline.

[0043] Optionally, in some embodiments, the modular integrated compressed air energy storage device 10 further comprises a control unit, wherein the control unit is connected to the compression subsystem and the turbine subsystem respectively, and is used for power distribution of the compression subsystem and the turbine subsystem respectively.

[0044] Specifically, the modular integrated compressed air energy storage device of the embodiment of the application comprises four subsystems, namely a compression subsystem, a turbine subsystem, a gas storage sub-module, and a heat storage sub-module. Firstly, the total parameters of the four modules are designed according to the designed compressed air energy storage capacity and power. Then, the compression modules are designed according to the power of the compression subsystem, and the power of each module is distributed respectively; at the same time, the turbine modules are designed according to the power of the turbine subsystem, and the power of each module is distributed respectively. Finally, the modules are assembled to obtain the modular integrated compressed air energy storage device of the modular design.

[0045] Optionally, each set of compression modules comprises a low-pressure compression module and a high-pressure compression module.

[0046] The low-pressure compression module is connected to the first end of the heat storage subsystem 400 at one end, and is connected to the first end of the high-pressure compression module at the other end.

[0047] The second end of the high-pressure compression module is connected to the second end of the heat storage subsystem 400, and the third end of the high-pressure compression module is connected to the first end of the gas storage subsystem 300.

[0048] Specifically, each set of compression modules is composed of a low-pressure compression module and a high-pressure compression module, and the low-pressure compression module and the high-pressure compression module are connected through a gas transfer pipeline and a heat transfer pipeline. The low-pressure compression module is composed of a low-pressure compressor and a first heat exchanger, and the high-pressure compression module is composed of a high-pressure compressor and a second heat exchanger. The low-pressure compression module is used for preliminary compression of air, and at the same time, the compression heat is recovered to the heat storage subsystem 400; the high-pressure compression module is used for further compression of air, and at the same time, the compression heat is recovered to the heat storage subsystem 400.

[0049] Optionally, the low-pressure compression module comprises a low-pressure compressor and a first heat exchanger.

[0050] The first heat exchanger has one end connected to the tail of the low-pressure compressor and the other end connected to the heat storage subsystem 400 and the high-pressure compression module.

[0051] Specifically, the first heat exchanger is connected to the tail of the low-pressure compressor to form a low-pressure compression module, the low-pressure compressor is used to preliminarily compress air, and the first heat exchanger is used to collect compression heat and transfer the heat to the heat conducting oil.

[0052] Optionally, the high-pressure compression module comprises a high-pressure compressor and a second heat exchanger.

[0053] The high-pressure compressor has one end connected to the other end of the first heat exchanger.

[0054] The second heat exchanger has one end connected to the tail of the high-pressure compressor and the other end connected to the gas storage subsystem 300 and the heat storage subsystem 400.

[0055] Specifically, the second heat exchanger is connected to the tail of the high-pressure compressor to form a high-pressure compression module, the high-pressure compressor is used to further compress air, and the second heat exchanger is used to collect compression heat and transfer the heat to the heat conducting oil.

[0056] Optionally, each set of turbine module comprises a low-pressure turbine module and a high-pressure turbine module.

[0057] The low-pressure turbine module has one end connected to the third end of the heat storage subsystem 400 and the other end connected to the first end of the high-pressure turbine module.

[0058] The second end of the high-pressure turbine module is connected to the fourth end of the heat storage subsystem 400, and the third end of the high-pressure turbine module is connected to the second end of the gas storage subsystem 300.

[0059] Specifically, the turbine subsystem is composed of a high-pressure turbine module and a low-pressure turbine module, and the high-pressure turbine module and the low-pressure turbine module are connected by a gas delivery pipeline and a heat delivery pipeline. The high-pressure turbine module is composed of a high-pressure turbine and a third heat exchanger, and the low-pressure turbine module is composed of a low-pressure turbine and a fourth heat exchanger. The high-pressure turbine module is used to preliminarily expand compressed air, consume heat in the heat storage subsystem 400, and do work externally. The low-pressure turbine module is used to further expand compressed air, consume heat in the heat storage subsystem 400, and do work externally.

[0060] Optionally, the high-pressure turbine module comprises a high-pressure turbine and a third heat exchanger.

[0061] The third heat exchanger is connected to the first end of the high-pressure turbine, and the two together constitute a high-pressure turbine module. The high-pressure turbine is used for preliminary expansion of compressed air, and the third heat exchanger is used for heating the compressed air and transferring the heat of the heat conducting oil to the compressed air.

[0062] Specifically, the third heat exchanger is connected to the first end of the high-pressure turbine, and the two together constitute a high-pressure turbine module. The high-pressure turbine is used for preliminary expansion of compressed air, and the third heat exchanger is used for heating the compressed air and transferring the heat of the heat conducting oil to the compressed air.

[0063] Optionally, the low-pressure turbine module comprises a low-pressure turbine and a fourth heat exchanger.

[0064] The fourth heat exchanger is connected to the first end of the low-pressure turbine, and the other end of the fourth heat exchanger is connected to the gas storage subsystem 300 and the high-pressure turbine module.

[0065] Specifically, the fourth heat exchanger is connected to the first end of the low-pressure turbine, and the two together constitute a low-pressure turbine module. The low-pressure turbine is used for further expansion of compressed air, and the fourth heat exchanger is used for heating the compressed air and transferring the heat of the heat conducting oil to the compressed air.

[0066] Optionally, the gas storage subsystem 300 comprises a gas storage subelement, a first monitoring subelement and a first safety subelement.

[0067] The first end of the gas storage subelement is connected to the compression subsystem, and the second end of the gas storage subelement is connected to the turbine subsystem.

[0068] The first monitoring subelement is connected to the gas storage subelement.

[0069] The first safety subelement is connected to the gas storage subelement.

[0070] Specifically, the first monitoring subelement is used to detect the state of the gas storage subelement. For example, the first monitoring subelement can be a gas pressure sensor. The first safety subelement is used for the safety of the gas storage subelement. For example, the first safety subelement can be a valve on the gas storage subelement.

[0071] The first monitoring subelement is attached to the gas storage subelement to detect the state of the gas storage subelement and feed back the monitoring data to the first safety subelement. The first safety subelement receives data from the monitoring subelement and connects some safety devices on the gas storage subelement, and decides whether to act according to the data of the first monitoring subelement to ensure the safety of the system.

[0072] Optionally, the heat storage subsystem 400 comprises a first heat storage element and a second heat storage element.

[0073] The first heat storage member is connected at one end to the first end of each compression module and at the other end to the first end of each turbine module.

[0074] The second heat storage member is connected at one end to the second end of each compression module and at the other end to the second end of each turbine module.

[0075] Specifically, the first heat storage member can be a low-temperature heat conducting oil tank, and the second heat storage member can be a high-temperature heat conducting oil tank. The low-temperature heat conducting oil tank is used to store low-temperature heat conducting oil, and the high-temperature heat conducting oil tank is used to store high-temperature heat conducting oil. The two together constitute a heat storage system for storing compression heat.

[0076] In addition, the heat storage subsystem can further include a second monitoring sub-member and a second safety sub-member, a third monitoring sub-member and a third safety sub-member. The second monitoring sub-member is used to monitor the state of the first heat storage member, the third monitoring sub-member is used to monitor the state of the second heat storage member, the second safety sub-member is used to ensure the safety of the first heat storage member, and the third safety sub-member is used to ensure the safety of the second heat storage member. For example, the second monitoring sub-member and the third monitoring sub-member can be temperature sensors or liquid level sensors.

[0077] Specifically, the second monitoring sub-member can be used to monitor the temperature of the low-temperature heat conducting oil in the first heat storage member, or the second monitoring sub-member can be used to monitor the volume of the low-temperature heat conducting oil in the first heat storage member. The second safety sub-member is used to ensure the safety of the first heat storage member, for example, to ensure that the temperature of the first heat storage member is within a reasonable range, and to prevent the volume of the low-temperature heat conducting oil from being too low or too high.

[0078] The third monitoring sub-member can be used to monitor the temperature of the high-temperature heat conducting oil in the second heat storage member, or the third monitoring sub-member can be used to monitor the volume of the high-temperature heat conducting oil in the second heat storage member. The third safety sub-member is used to ensure the safety of the second heat storage member, for example, to ensure that the temperature is within a reasonable range, and to prevent the volume of the high-temperature heat conducting oil from being too low or too high.

[0079] To enable those skilled in the relevant art to further understand the modular integrated compressed air energy storage device of the embodiments of the present application, the following will be described in detail in conjunction with specific embodiments.

[0080] Specifically, the modular integrated compressed air energy storage device provided by the embodiments of the present application, as shown in Figure 1 As shown in the figure, the figure contains two compression modules and two turbine modules. In actual engineering, there can be multiple compression modules or multiple turbine modules.

[0081] In the embodiment of the present application, the low-pressure compression module can consume 10.624 MW, so that the air with a mass flow rate of 110.7 t / h passes through, the pressure increases from atmospheric pressure to 9.951 bar, and the temperature increases to 40 DEG C, while the low-temperature heat conducting oil with a mass flow rate of 51.19 t / h passes through, and the temperature increases from 30.01 DEG C to 320 DEG C; the high-pressure compression module can consume 11.566 MW, so that the air discharged by the low-pressure compression module passes through, the pressure increases to 102 bar, and the temperature remains 40 DEG C, while the low-temperature heat conducting oil with a mass flow rate of 63.94 t / h passes through, and the temperature increases from 30.01 DEG C to 320 DEG C. The compressed air with a pressure of 100 bar and a temperature of 30 DEG C flows into the air reservoir; the low-temperature heat storage reservoir discharges 115.1 t / h of low-temperature heat conducting oil with a temperature of 30 DEG C, and the high-temperature heat storage reservoir discharges 115.1 t / h of high-temperature heat conducting oil with a temperature of 320 DEG C.

[0082] In the embodiment of the present application, the high-pressure turbine module can make the compressed air with a pressure of 40 bar and a temperature of 30 DEG C discharged from the air reservoir pass through with a mass flow rate of 219.3 t / h, and become air with a pressure of 6.205 bar and a temperature of 58.27 DEG C, at the same time, the high-pressure turbine module makes the high-temperature heat conducting oil with a mass flow rate of 109 t / h discharged from the high-temperature heat storage module decrease from 310 DEG C to 40 DEG C; the low-pressure turbine module can make the medium-pressure air discharged from the high-pressure turbine module pass through, and become air with a pressure of 0.9626 bar and a temperature of 52.21 DEG C, and the low-pressure turbine module makes the high-temperature heat conducting oil with a mass flow rate of 98.1 t / h discharged from the high-temperature heat storage module decrease from 310 DEG C to 71.4 DEG C. At the same time, the turbine side releases 22.945 MW.

[0083] In the embodiment of the present application, since there are two compression side subsystems and two turbine side subsystems, the total charging power is:

[0084] P total = 2 x (10.624 + 11.566) = 44.38 MW;

[0085] The total discharging power is:

[0086] P total = 2 x 22.945 = 45.89 MW;

[0087] In another embodiment of the present application, a compressed air energy storage power station with a compression power of 221.9 MW and a power generation power of 229.45 MW is needed, if a single compression side and single turbine side scheme is used, it is not economically feasible due to the high cost of large-capacity compressors and turbines, and the use of a multi-compression side and multi-turbine side scheme can solve this problem.

[0088] The modular integrated compressed air energy storage device provided by the embodiment of the present application comprises a compression subsystem, a turbine subsystem, a gas storage subsystem and a heat storage subsystem, wherein the compression subsystem comprises at least one set of compression modules, the first end of each set of compression modules is connected to the first end of the heat storage subsystem through a heat transfer pipeline, the second end of each set of compression modules is connected to the second end of the heat storage subsystem through a heat transfer pipeline, and the third end of each set of compression modules is connected to the first end of the gas storage subsystem through a gas transfer pipeline; the turbine subsystem comprises at least one set of turbine modules, the first end of each set of turbine modules is connected to the third end of the heat storage subsystem through a heat transfer pipeline, the second end of each set of turbine modules is connected to the fourth end of the heat storage subsystem through a heat transfer pipeline, and the third end of each set of turbine modules is connected to the second end of the gas storage subsystem through a gas transfer pipeline. Thus, the contradiction between large-scale energy storage demand and cost control is solved, the modular design of the present application can meet the large-scale energy storage demand while reducing the cost, and a more flexible and economical energy storage scheme is provided for a new type of power system.

[0089] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or N embodiments or examples in a suitable manner. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0090] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one feature. In the description of the present application, the meaning of "N" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0091] Any process or method descriptions in flow charts or otherwise described herein can be understood as representing code modules, segments, or portions of code that include one or more executable instructions for implementing specific logic functions (or steps) in the process, and the various embodiments of the present application include additional implementations in which the order of the steps can be different, including use of the same or different steps, or additional or fewer steps, are performed in an alternative order or in substantially simultaneous fashion, as will be appreciated by those skilled in the art.

[0092] It should be understood that portions of the application can be implemented in hardware, software, firmware, or combinations thereof. In the above embodiments, the N steps or methods can be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. As such, if implemented in hardware, and in another embodiment, any of the following technologies, known in the art, or their combinations, can be used to implement: discrete logic circuitry having logic gates for implementing logic functions on data signals, application specific integrated circuits having appropriate combinational logic gates, programmable gate arrays, field programmable gate arrays, etc.

[0093] Those skilled in the art of the present technology can understand that all or part of the steps carried out by the above-mentioned embodiment methods can be completed by programs instructing related hardware, and the programs can be stored in a computer readable storage medium. When the program is executed, it includes one of the steps of the method embodiment or a combination thereof.

[0094] Although the embodiments of the present application have been shown and described above, it should be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above-mentioned embodiments within the scope of the present application.

Claims

1. A modular integrated compressed air energy storage device, characterized in that, The system comprises a compression subsystem, a turbine subsystem, a gas storage subsystem and a heat storage subsystem, wherein, the compression subsystem comprises at least one set of compression modules, a first end of each set of compression modules is connected to a first end of the heat storage subsystem through a heat transfer pipeline, a second end of each set of compression modules is connected to a second end of the heat storage subsystem through a heat transfer pipeline, and a third end of each set of compression modules is connected to a first end of the gas storage subsystem through a gas transfer pipeline; the turbine subsystem comprises at least one set of turbine modules, a first end of each set of turbine modules is connected to a third end of the heat storage subsystem through a heat transfer pipeline, a second end of each set of turbine modules is connected to a fourth end of the heat storage subsystem through a heat transfer pipeline, and a third end of each set of turbine modules is connected to a second end of the gas storage subsystem through a gas transfer pipeline. each set of compression modules comprises a low-pressure compression module and a high-pressure compression module, wherein, 2. The modular integrated compressed air energy storage device of claim 1, wherein, the low-pressure compression module has one end connected to the first end of the heat storage subsystem and the other end connected to the first end of the high-pressure compression module; the second end of the high-pressure compression module is connected to the second end of the heat storage subsystem, and the third end of the high-pressure compression module is connected to the first end of the gas storage subsystem. the low-pressure compression module comprises:

3. The modular integrated compressed air energy storage device of claim 2, wherein, a low-pressure compressor; a first heat exchanger having one end connected to the tail of the low-pressure compressor and the other end connected to the heat storage subsystem and the high-pressure compression module. the high-pressure compression module comprises:

4. The modular integrated compressed air energy storage device of claim 3, wherein, a high-pressure compressor having one end connected to the other end of the first heat exchanger; a second heat exchanger having one end connected to the tail of the high-pressure compressor and the other end connected to the gas storage subsystem and the heat storage subsystem. each set of turbine modules comprises a low-pressure turbine module and a high-pressure turbine module, wherein, 5. The modular integrated compressed air energy storage device of claim 1, wherein, the low-pressure turbine module has one end connected to the third end of the heat storage subsystem and the other end connected to the first end of the high-pressure turbine module; the second end of the high-pressure turbine module is connected to the fourth end of the heat storage subsystem, and the third end of the high-pressure turbine module is connected to the second end of the gas storage subsystem. the high-pressure turbine module comprises:

6. The modular integrated compressed air energy storage device of claim 5, wherein, a high-pressure turbine; a third heat exchanger having one end connected to the head of the high-pressure turbine and the other end connected to the heat storage subsystem and the gas storage subsystem. the low-pressure turbine module comprises:

7. The modular integrated compressed air energy storage device of claim 6, wherein, a low-pressure turbine; a fourth heat exchanger having one end connected to the head of the low-pressure turbine and the other end connected to the gas storage subsystem and the high-pressure turbine module. the gas storage subsystem comprises:

8. The modular integrated compressed air energy storage device of claim 1, wherein, a gas storage component having one end connected to the compression subsystem and the other end connected to the turbine subsystem; a first monitoring component connected to the gas storage component; a first safety component connected to the gas storage component. ​ 9. The modular integrated compressed air energy storage device of claim 1, wherein, The heat storage subsystem comprises: a first heat storage element, one end of the first heat storage element being connected with the first end of each group of compression modules, and the other end of the first heat storage element being connected with the first end of each group of turbine modules; a second heat storage element, one end of the second heat storage element being connected with the second end of each group of compression modules, and the other end of the second heat storage element being connected with the second end of each group of turbine modules.

10. The modular integrated compressed air energy storage device of claim 1, wherein, Further comprising: a control unit, the control unit being connected with the compression subsystem and the turbine subsystem respectively, and being used for power distribution of the compression subsystem and the turbine subsystem respectively.

Images