Coal mine waste roadway gas energy storage utilization system and method

Through dynamic data monitoring and multi-dimensional data analysis, combined with the space utilization and gas energy storage limits of coal mine waste tunnels, the efficient, safe and intelligent utilization of gas energy storage systems in coal mine waste tunnels is achieved, solving the problems of low efficiency, high cost and single resource utilization of traditional energy storage systems, and improving system reliability and resource utilization.

CN120291929AInactive Publication Date: 2025-07-11穆玄
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Patent Information

Application Number
CN202510725550.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-30
Publication Date
2025-07-11
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Traditional compressed air energy storage systems have problems such as low energy conversion efficiency, high construction cost, single resource utilization and extensive regulation, and lack efficient, safe and intelligent gas energy storage utilization technology for abandoned coal mines.

Method used

Dynamic data monitoring, multi-dimensional data acquisition, analysis and feedback modules are adopted, combined with multi-field coupled resource utilization, and intelligent and precise regulation is achieved by calculating the tunnel utilization space, gas energy storage limits and energy storage efficiency, and avoiding resource waste and structural instability.

Benefits of technology

It improves energy storage efficiency, reduces construction costs, realizes efficient utilization of multiple coupled resources, ensures that the system operates within the safe boundary, and improves system reliability and resource utilization.

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Abstract

The invention relates to the technical field of energy storage and utilization, and discloses a coal mine abandoned roadway gas energy storage utilization system and method, which comprises a dynamic data monitoring module, a dynamic data capture module, a multi-dimensional data acquisition module, a multi-dimensional data analysis module, an execution module, a feedback module and an optimization module, the dynamic data monitoring module monitors system operation process parameters in real time, the dynamic data capturing module captures abnormal data, and the multi-dimensional data acquisition module stores the monitored and captured data and synchronously obtains coal mine abandoned roadway information. The multi-dimensional data analysis module calculates a roadway utilization space Vs, a gas energy storage limit Lmax and energy storage efficiency Qx according to the collected data, the execution module performs gas energy storage by using a coal mine abandoned roadway according to an analysis result, and the feedback module performs information feedback and system state display according to an execution result. And the optimization module performs effect evaluation and strategy adjustment on the execution result according to the information of the feedback module.
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Description

Technical Field

[0001] The present invention relates to the technical field of energy storage and utilization, and particularly to a gas energy storage and utilization system and method for abandoned coal mine roadways. Background Art

[0002] Currently, traditional compressed air energy storage (CAES) systems face many technical bottlenecks in practical applications. On the one hand, there are problems of large throttling losses and serious waste of thermal energy during the compression and power generation processes, resulting in generally low energy conversion efficiency and difficulty in meeting large-scale energy storage requirements. On the other hand, existing energy storage systems usually rely on newly built gas storage reservoirs or specific geological conditions, such as underground caves, which not only have high construction costs but also limited site selection and insufficient economy. In addition, traditional technologies are mostly limited to the utilization of single spatial resources and fail to achieve multi-field coupling and coordination of thermal energy, electrical energy, and gravitational potential energy, resulting in low resource utilization efficiency. At the same time, existing systems lack precise flow control and dynamic regulation capabilities in operation and control. For example, the fuel supply quantity depends on empirical judgment, which is prone to cause resource waste and further reduce the system efficiency. As a large amount of idle underground space resources, if abandoned coal mine roadways can be used for gas energy storage, it can not only solve the above problems of traditional energy storage systems but also realize the reuse of resources. However, there is currently a lack of efficient, safe, and intelligent gas energy storage and utilization technologies for the characteristics of abandoned coal mine roadways, and innovative systems and methods are urgently needed to break through the existing limitations. Summary of the Invention

[0003] (1) Technical Problems to be Solved

[0004] In view of the deficiencies of the prior art, the present invention provides a gas energy storage and utilization system and method for abandoned coal mine roadways, which have the advantages of high constant-pressure energy storage efficiency, high multi-field coupling resource utilization rate, low-cost transformation of abandoned roadways, and intelligent precise regulation and control, and solve the problems of low energy conversion efficiency, high construction cost, single resource utilization, and extensive regulation and control of traditional compressed air energy storage systems.

[0005] (2) Technical Solutions

[0006] To achieve the above object, the present invention provides the following technical solution: A gas energy storage and utilization system for abandoned coal mine roadways includes a dynamic data monitoring module, a dynamic data capture module, a multi-dimensional data acquisition module, a multi-dimensional data analysis module, an execution module, a feedback module, and an optimization module;

[0007] The dynamic data monitoring module real-time monitors the operation process parameters of the gas energy storage and utilization system for abandoned coal mine roadways;

[0008] The dynamic data capture module captures sudden changes or abnormal data during the system operation;

[0009] The multi-dimensional data acquisition module stores the monitored and captured data, and synchronously obtains the spatial data, gas energy storage utilization data, energy storage process parameter information, and energy storage efficiency information of the abandoned coal mine roadway;

[0010] The multi-dimensional data analysis module analyzes the collected data, determines the utilization range of the gas energy storage space in the abandoned coal mine roadway and the gas data information, and conducts gas utilization judgment;

[0011] The execution module utilizes the abandoned coal mine roadway for gas energy storage according to the analysis result;

[0012] The feedback module intuitively feeds back information according to the execution result;

[0013] The optimization module judges the execution result according to the information of the feedback module.

[0014] Preferably, the multi-dimensional data acquisition module classifies the data. The multi-dimensional data acquisition module includes a spatial data acquisition unit, a gas energy storage utilization data acquisition unit, an energy storage process parameter acquisition unit, and an energy storage efficiency information acquisition unit; the multi-dimensional data analysis module includes a spatial utilization range analysis unit, a gas data analysis unit, and an energy storage strategy design unit.

[0015] Preferably, the gas energy storage utilization data acquisition unit obtains the gas reserve, pressure, and temperature through a detector and a sensor.

[0016] Preferably, the spatial data acquisition unit obtains the length, width, height, and volume of the roadway through three-dimensional laser scanning.

[0017] Preferably, the energy storage process parameter acquisition unit obtains the air flow rate, pressure change, energy consumption data, and equipment operation status during the compression / generation process through a sensor and a flow meter.

[0018] Preferably, the energy storage efficiency information acquisition unit obtains the overall energy conversion efficiency of the system, gas utilization rate, multi-energy coupling efficiency, and energy loss data through a sensor and a measuring device.

[0019] Preferably, the spatial utilization range analysis unit calculates the utilized space Vs of the roadway, and its calculation formula is:

[0020]

[0021] In the formula, Vs represents the utilized space of the roadway, L, W, and H respectively represent the length, width, and height dimensions of the roadway, and K c represents the structural safety factor, and K r represents the reserved space factor;

[0022] The utilized space Vs of the roadway is used to determine the actual available space for gas energy storage.

[0023] Preferably, the gas data analysis unit calculates the gas energy storage limit L according to the utilized space Vs of the roadway max , and its calculation formula is:

[0024]

[0025] In the formula, L max represents the gas energy storage limit, Vs represents the utilized space of the roadway, P max represents the maximum pressure allowed in the roadway, μ c represents the compression efficiency, reflecting the energy loss during the compression process, g represents the gas constant, and T represents the temperature;

[0026] The gas energy storage limit L max is used to determine the maximum capacity of gas energy storage.

[0027] Preferably, the energy storage strategy design unit calculates the energy storage efficiency Qx, and its calculation formula is:

[0028]

[0029] In the formula, Qx represents the energy storage efficiency, S o represents the power generation output energy, S i represents the compression input energy, represents the heat recovery efficiency, m represents the fluid mass, C represents the fluid specific heat capacity, ΔT represents the temperature difference between the inlet and outlet of the fluid in the heat exchanger, and q t represents the total heat generated theoretically during the compression process;

[0030] The energy storage efficiency Qx is used to evaluate the energy utilization efficiency of the system and optimize the energy storage strategy.

[0031] A method for utilizing gas energy storage in abandoned coal mine roadways includes the following steps:

[0032] Step 1: Establish a system, including a dynamic data monitoring module, a dynamic data capture module, a multi-dimensional data acquisition module, a multi-dimensional data analysis module, an execution module, a feedback module, and an optimization module;

[0033] Step 2: The dynamic data monitoring module monitors the operation process parameters of the gas energy storage utilization system in the abandoned coal mine roadway in real time;

[0034] Step 3: The dynamic data capture module captures sudden changes or abnormal data during the operation of the system;

[0035] Step 4: The multi-dimensional data acquisition module stores the monitored and captured data, and synchronously obtains the spatial data of the abandoned coal mine roadway, the gas energy storage utilization data, the energy storage process parameter information, and the energy storage efficiency information.

[0036] Step 5: The multi-dimensional data analysis module calculates the roadway utilization space Vs, the gas energy storage limit L max and the energy storage efficiency Qx based on the data collected by the multi-dimensional data acquisition module, determines the utilization range of the gas energy storage space in the abandoned coal mine roadway, and then combines the gas energy storage data information to further judge the gas utilization rate.

[0037] Step 6: The execution module uses the abandoned coal mine roadway for gas energy storage according to the analysis result.

[0038] Step 7: The feedback module conducts information feedback and system status display according to the execution result.

[0039] Step 8: The optimization module conducts effect evaluation and strategy adjustment on the execution result according to the information of the feedback module.

[0040] Compared with the prior art, the present invention provides a gas energy storage utilization system and method for abandoned coal mine roadways, having the following beneficial effects:

[0041] 1. By calculating the roadway utilization space Vs, the present invention is used to determine the actual available space for gas energy storage, avoid over-utilization leading to the instability of the roadway structure, and reserve a safety margin to cope with geological changes. When the roadway utilization space Vs approaches the design upper limit, the system automatically triggers an alarm to prompt reducing the energy storage capacity or strengthening the support measures. When the roadway utilization space Vs is much lower than the theoretical value, the system analyzes whether the reserved space is too large resulting in resource waste, and dynamically adjusts the reserved space coefficient K r to ultimately achieve the effect of maximizing the energy storage space utilization rate on the premise of ensuring the safety of the roadway.

[0042] 2. By calculating the gas energy storage limit L max the present invention is used to determine the maximum capacity of gas energy storage to ensure safe and efficient energy storage operations. When the execution module compresses the gas, the gas energy storage limit L is substituted max to prevent overpressure from causing the roadway to rupture. When the gas energy storage limit L max decreases due to geological conditions, the system automatically adjusts the compression strategy (such as reducing the compression ratio). When the execution module releases gas for power generation, the power generation power is optimized in combination with the gas energy storage limit L max to avoid over-consumption leading to efficiency decline, and ultimately enables the system to achieve dynamic balance of the gas energy storage capacity within the safety boundary, thereby improving the system reliability.

[0043] 3. The present invention calculates the energy storage efficiency Qx to evaluate the energy utilization efficiency of the system and optimize the energy storage strategy. When the energy storage efficiency Qx > 80%, the system maintains the current operating parameters and remains in a high-efficiency state. When 60% < Qx ≤ 80%, the system automatically analyzes the heat recovery link, such as checking whether the heat exchanger is fouled. When Qx ≤ 60%, the system triggers a comprehensive diagnosis, adjusts the compression ratio, optimizes the power generation process, or enhances the heat preservation measures, ultimately enabling the system to continuously operate in the optimal efficiency range and reducing the unit energy storage cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a system flowchart of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0045] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0046] Please refer to Figure 1 , a gas energy storage and utilization system for abandoned coal mine roadways, including a dynamic data monitoring module, a dynamic data capture module, a multi-dimensional data acquisition module, a multi-dimensional data analysis module, an execution module, a feedback module, and an optimization module;

[0047] The dynamic data monitoring module monitors the operating process parameters of the gas energy storage and utilization system for abandoned coal mine roadways in real time, such as pressure, temperature, flow rate, and gas concentration;

[0048] The dynamic data capture module captures sudden changes or abnormal data during the operation of the system for timely response and processing;

[0049] The multi-dimensional data acquisition module stores the monitored and captured data, and synchronously obtains the spatial data of the abandoned coal mine roadway, the gas energy storage and utilization data, the energy storage process parameter information, and the energy storage efficiency information;

[0050] The multi-dimensional data analysis module analyzes the collected data, judges the utilization range of the gas energy storage space in the abandoned coal mine roadway and the gas data information, and conducts gas utilization judgment;

[0051] The execution module uses the abandoned coal mine roadway for gas energy storage according to the analysis result;

[0052] The feedback module intuitively feeds back information according to the execution result;

[0053] The optimization module judges the execution result according to the information of the feedback module.

[0054] The multi-dimensional data acquisition module classifies the data. The multi-dimensional data acquisition module includes a spatial data acquisition unit, a gas energy storage utilization data acquisition unit, a energy storage process parameter acquisition unit, and an energy storage efficiency information acquisition unit; the multi-dimensional data analysis module includes a spatial utilization range analysis unit, a gas data analysis unit, and an energy storage strategy design unit.

[0055] The spatial data acquisition unit acquires the length, width, height, and volume of the roadway through three-dimensional laser scanning.

[0056] The gas energy storage utilization data acquisition unit acquires the gas reserve, pressure, and temperature through detectors and sensors.

[0057] The energy storage process parameter acquisition unit acquires the air flow rate, pressure change, energy consumption data, and equipment operation status during the compression / generation process through sensors and flow meters.

[0058] The energy storage efficiency information acquisition unit acquires the overall energy conversion efficiency of the system, gas utilization rate, multi-energy coupling efficiency, and energy loss data through sensors and measuring devices.

[0059] The spatial utilization range analysis unit calculates the roadway utilization space Vs, and its calculation formula is:

[0060]

[0061] In the formula, Vs represents the roadway utilization space, L, W, and H respectively represent the length, width, and height dimensions of the roadway, and K c represents the structural safety factor. The structural safety factor is a coefficient less than 1, which is used to consider the safety and stability of the roadway structure and ensure that there is enough safety margin in actual use. K r represents the reserved space coefficient. The roadway needs to reserve a certain space for ventilation pipe laying and personnel passage, and its value range is 0-1, which is determined according to the reserved space ratio;

[0062] The advantages are as follows: By calculating the roadway utilization space Vs, it is used to determine the actual available space for gas energy storage, avoid over-utilization leading to the instability of the roadway structure, and reserve a safety margin to cope with geological changes. When the roadway utilization space Vs approaches the design upper limit, the system automatically triggers an alarm to prompt reducing the energy storage capacity or strengthening the support measures. When the roadway utilization space Vs is much lower than the theoretical value, the system analyzes whether it is due to excessive reserved space resulting in resource waste, and dynamically adjusts the reserved space coefficient K r , and finally achieves the effect of maximizing the energy storage space utilization rate on the premise of ensuring the safety of the roadway.

[0063] The gas data analysis unit calculates the gas energy storage limit L according to the roadway utilization space Vs max , and its calculation formula is:

[0064]

[0065] In the formula, L max represents the gas energy storage limit, Vs represents the utilized space of the roadway, and P max represents the maximum allowable pressure of the roadway, which is determined by geological conditions and the structural safety factor. μ c represents the compression efficiency, reflecting the energy loss during the compression process. g represents the gas constant (related to the properties of the gas), and T represents the temperature (the gas temperature during the compression process);

[0066] The advantages are as follows: By calculating the gas energy storage limit L max it is used to determine the maximum capacity of gas energy storage to ensure safe and efficient energy storage operations. When the execution module compresses the gas, the gas energy storage limit L is substituted max , preventing the roadway from rupturing due to overpressure. When the gas energy storage limit L max decreases due to geological conditions, the system automatically adjusts the compression strategy (such as reducing the compression ratio). When the execution module releases gas for power generation, in combination with the gas energy storage limit L max the power generation power is optimized to avoid efficiency decline caused by excessive consumption. Finally, the system achieves dynamic balance of the gas energy storage capacity within the safety boundary, thereby improving the system reliability.

[0067] The energy storage strategy design unit calculates the energy storage efficiency Qx, and its calculation formula is:

[0068]

[0069] In the formula, Qx represents the energy storage efficiency, S o represents the power generation output energy, and S i represents the compression input energy, represents the heat recovery efficiency, m represents the fluid mass, C represents the specific heat capacity of the fluid, ΔT represents the temperature difference between the inlet and outlet of the fluid in the heat exchanger, and q t represents the total heat generated theoretically during the compression process, and the unit is also joule (J);

[0070] The advantages are as follows: By calculating the energy storage efficiency Qx, it is used to evaluate the energy utilization efficiency of the system and optimize the energy storage strategy. When the energy storage efficiency Qx > 80%, the system maintains the current operating parameters and remains in a high-efficiency state. When 60% < Qx ≤ 80%, the system automatically analyzes the heat recovery link, such as checking whether the heat exchanger is fouled. When Qx ≤ 60%, the system triggers a comprehensive diagnosis, adjusts the compression ratio, optimizes the power generation process, or enhances the heat preservation measures. Finally, the system continuously operates in the optimal efficiency range, reducing the unit energy storage cost.

[0071] A method for utilizing gas energy storage in abandoned coal mine roadways includes the following steps:

[0072] Step 1: Establish a system, including a dynamic data monitoring module, a dynamic data capture module, a multi-dimensional data acquisition module, a multi-dimensional data analysis module, an execution module, a feedback module, and an optimization module;

[0073] Step 2: The dynamic data monitoring module monitors the operation process parameters of the coal mine abandoned roadway gas energy storage utilization system in real time, such as pressure, temperature, flow rate, and gas concentration;

[0074] Step 3: The dynamic data capture module captures sudden changes or abnormal data during the system operation for timely response and processing;

[0075] Step 4: The multi-dimensional data acquisition module stores the monitored and captured data, and synchronously obtains the spatial data of the coal mine abandoned roadway, the gas energy storage utilization data, the energy storage process parameter information, and the energy storage efficiency information;

[0076] Step 5: The multi-dimensional data analysis module calculates the roadway utilization space Vs, the gas energy storage limit L max and the energy storage efficiency Qx based on the data collected by the multi-dimensional data acquisition module, judges the utilization range of the coal mine abandoned roadway gas energy storage space, and then combines the gas energy storage data information to further judge the gas utilization rate;

[0077] Step 6: The execution module makes the following judgment and processing measures according to the analysis results:

[0078] (1) Roadway utilization space condition:

[0079] When the roadway utilization space Vs ≥ 85% of the design value, adopt the full-load energy storage mode to make full use of the space;

[0080] When 55% ≤ the roadway utilization space Vs ≤ 85% of the design value, adopt the balanced energy storage mode and give priority to filling the safe area;

[0081] When the roadway utilization space Vs < 55% of the design value, adopt the full-load energy storage mode to make full use of the space;

[0082] (2) Gas energy storage limit condition:

[0083] When the gas energy storage limit L max ≥ 90% of the theoretical value, maintain the conventional compression process;

[0084] When 70% ≤ the gas energy storage limit L max < 90%, reduce the final compression pressure to the safety threshold;

[0085] When the gas energy storage limit L max < 70%, switch to the low-pressure energy storage mode and give an early warning of geological risks

[0086] (3) Energy storage efficiency condition:

[0087] When the energy storage efficiency Qx ≥ 80%, maintain the current operating parameters;

[0088] When 60% ≤ energy storage efficiency Qx < 80%, initiate heat energy recovery and efficiency improvement measures;

[0089] When the energy storage efficiency Qx < 60%, automatically switch to the efficiency - priority mode (such as reducing the power generation load);

[0090] Step Seven: The feedback module integrates real - time data and visual display based on the execution results, and intuitively presents the gas distribution and pressure field changes in the roadway through a 3D model, and updates the trend charts of the roadway utilization space Vs, gas energy storage limit L max and the energy storage efficiency Qx index in real - time, and marks the abnormal areas (such as local overpressure points) and generates warning work orders;

[0091] Step Eight: The optimization module implements closed - loop optimization according to the feedback information. The specific measures are as follows:

[0092] (1) When four consecutive evaluations show that the roadway utilization space Vs is lower than 55%, adjust the reserved space coefficient K r ;

[0093] (2) When the gas concentration fluctuation causes the gas energy storage limit L max to decrease, the system automatically increases the gas purification process.

[0094] Advantages: By calculating the three core parameters of the roadway utilization space Vs, gas energy storage limit L max and energy storage efficiency Qx, the system can maximize the utilization rate of the energy storage space while ensuring the safety of the roadway structure; by dynamically adjusting the gas compression and power generation strategies, achieve dynamic balance of the energy storage capacity to improve the system reliability; through multi - energy coupling and heat energy recovery mechanism, make the system continuously operate in the best efficiency range and reduce the unit energy storage cost; at the same time, relying on the intelligent data monitoring, analysis and feedback system, achieve precise control of the energy storage process, thus effectively avoiding resource waste.

[0095] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas energy storage and utilization system for abandoned coal mine roadways, characterized in that It includes a dynamic data monitoring module, a dynamic data capturing module, a multi-dimensional data acquisition module, a multi-dimensional data analysis module, an execution module, a feedback module, and an optimization module; The dynamic data monitoring module monitors the operation process parameters of the gas energy storage utilization system in the abandoned coal mine roadway in real time; The dynamic data capturing module captures sudden changes or abnormal data during the system operation; The multi-dimensional data acquisition module stores the monitored and captured data, and synchronously obtains the spatial data of the abandoned coal mine roadway, the gas energy storage utilization data, the energy storage process parameter information, and the energy storage efficiency information; The multi-dimensional data analysis module analyzes the collected data, judges the utilization range of the gas energy storage space in the abandoned coal mine roadway and the gas data information, and conducts gas utilization judgment; The execution module uses the abandoned coal mine roadway for gas energy storage according to the analysis result; The feedback module intuitively feeds back information according to the execution result; The optimization module judges the execution result according to the information of the feedback module.

2. The gas energy storage and utilization system for abandoned coal mine roadways according to claim 1, wherein: The multi-dimensional data acquisition module classifies the data. The multi-dimensional data acquisition module includes a spatial data acquisition unit, a gas energy storage utilization data acquisition unit, an energy storage process parameter acquisition unit, and an energy storage efficiency information acquisition unit; The multi-dimensional data analysis module includes a spatial utilization range analysis unit, a gas data analysis unit, and an energy storage strategy design unit.

3. A gas energy storage and utilization system for abandoned coal mine roadways according to claim 2, characterized in that: The spatial data acquisition unit obtains the length, width, height, and volume of the roadway through three-dimensional laser scanning.

4. A gas energy storage and utilization system for abandoned coal mine roadways according to claim 2, characterized in that: The gas energy storage utilization data acquisition unit obtains the gas reserves, pressure, and temperature through detectors and sensors.

5. A gas energy storage and utilization system for abandoned coal mine roadways according to claim 2, characterized in that: The energy storage process parameter acquisition unit obtains the air flow, pressure change, energy consumption data, and equipment operation status during the compression / generation process through sensors and flow meters.

6. The gas energy storage and utilization system for abandoned coal mine roadways according to claim 2, wherein: The energy storage efficiency information acquisition unit obtains the overall energy conversion efficiency of the system, gas utilization rate, multi-energy coupling efficiency, and energy loss data through sensors and measuring devices.

7. A gas energy storage and utilization system and method for abandoned coal mine roadways according to claim 2, characterized in that: The spatial utilization range analysis unit calculates the roadway utilization space Vs, and its calculation formula is: In the formula, Vs represents the lane utilization space, L, W, and H represent the length, width, and height of the lane, respectively, and K c Represents the structural safety factor, K r Indicates the reserved space coefficient; The roadway utilization space Vs is used to determine the actual available space for gas energy storage.

8. A gas energy storage and utilization system for abandoned coal mine roadways according to claim 2, characterized in that: The gas data analysis unit calculates the gas energy storage limit L based on the roadway utilization space Vs max , and its calculation formula is: In the formula, L max represents the gas energy storage limit, Vs represents the utilized space of the roadway, P max represents the maximum allowable pressure of the roadway, μ c represents the compression efficiency, reflecting the energy loss during the compression process, g represents the gas constant, and T represents the temperature; The gas energy storage limit L max Used to determine the maximum capacity of gas energy storage.

9. A gas energy storage and utilization system for abandoned coal mine roadways according to claim 2, characterized in that: The energy storage strategy design unit calculates the energy storage efficiency Qx, and its calculation formula is: In the formula, Qx represents the energy storage efficiency, S o represents the generated output energy, S i represents the compressed input energy, represents the heat recovery efficiency, m represents the fluid mass, C represents the specific heat capacity of the fluid, ΔT represents the temperature difference between the inlet and outlet of the fluid in the heat exchanger, q t represents the total heat generated theoretically during the compression process; The energy storage efficiency Qx is used to evaluate the energy utilization efficiency of the system and optimize the energy storage strategy.

10. A method for gas energy storage and utilization in abandoned coal mine roadways, characterized in that, It includes the following steps: Step 1: Establish a system, including a dynamic data monitoring module, a dynamic data capturing module, a multi-dimensional data acquisition module, a multi-dimensional data analysis module, an execution module, a feedback module, and an optimization module; Step 2: The dynamic data monitoring module monitors the operation process parameters of the gas energy storage utilization system in the abandoned coal mine roadway in real time; Step 3: The dynamic data capturing module captures sudden changes or abnormal data during the system operation; Step 4: The multi-dimensional data acquisition module stores the monitored and captured data, and synchronously obtains the spatial data of the abandoned coal mine roadway, the gas energy storage utilization data, the energy storage process parameter information, and the energy storage efficiency information; Step 5: The multi-dimensional data analysis module calculates the roadway utilization space Vs, the gas energy storage limit L, max and the energy storage efficiency Qx based on the data collected by the multi-dimensional data collection module, determines the utilization range of the gas energy storage space in the abandoned roadway of the coal mine, and then combines the gas energy storage data information to further judge the gas utilization rate; Step 6: The execution module uses the abandoned coal mine roadway for gas energy storage according to the analysis result; Step 7: The feedback module conducts information feedback and system status display according to the execution result; Step Eight: The optimization module conducts effectiveness evaluation and strategy adjustment on the execution result according to the information from the feedback module.