A gas leakage detection sensor for a compressed air energy storage chamber and a detection method thereof

Abstract

The present invention provides a gas leakage detection sensor for a compressed air energy storage chamber and a detection method thereof, which relate to the technical field of sealing testing, wherein the gas leakage detection sensor comprises a gas leakage positioning unit and a gas leakage monitoring unit, wherein the gas leakage detection sensor, a driving mechanism, a lifting mechanism and a temporary storage tank are all installed inside the compressed air energy storage chamber, and the top of the temporary storage tank is connected to an air supply pipe, the surface of the air supply pipe is installed with a driving mechanism, the driving mechanism is fixed to the top of the chamber, and a transmission arm is welded to the side of the driving mechanism. The present invention performs intermittent temporary storage of the injected gas through the temporary storage tank, which can provide a phased stable pressure environment for the entire chamber during a long injection process, and in the stable stage, the driving mechanism and the lifting mechanism can be used to drive the gas leakage positioning unit to achieve the purpose of gas leakage detection inside the chamber, and the device can also achieve the effect of locating the specific leakage position.

Description

Technical Field

[0001] The present invention relates to the technical field of sealing testing, and in particular to a gas leakage detection sensor for a compressed air energy storage chamber and a detection method thereof. Background Art

[0002] A compressed air energy storage chamber is a facility used to store high-pressure air, primarily in compressed air energy storage systems. Over extended periods of use, compressed air energy storage chambers are prone to leaks, which can reduce the efficiency of the compressed air energy storage system, causing energy loss and impacting both storage and release. Furthermore, because compressed air energy storage chambers are typically under high pressure, leaks can lead to pressure imbalances, potentially damaging equipment or causing safety incidents. Therefore, leak monitoring helps prevent potential risks such as explosions and collapses, ensuring the safety of personnel and equipment. An intelligent sensing system, including leak detection sensors and other intelligent sensing components, will be built into the chamber.

[0003] In the prior art, the gas leakage detection sensor used for the compressed air energy storage chamber is directly fixed inside the chamber through a barometer, so as to perform long-term detection and processing on whether the gas pressure in the chamber changes. However, during the long-term gas supply process to the chamber, since the pressure in the chamber is always in a changing state during the process, it is impossible to provide effective leakage detection if faced with a long injection process. On the other hand, the conventional gas leakage detection sensor can only determine whether there is a gas leakage, but cannot determine the specific leakage location for the chamber as a whole, which makes positioning difficult for subsequent maintenance and inspection. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a gas leakage detection sensor and a detection method for a compressed air energy storage chamber, so as to solve the problems raised in the above-mentioned background technology. The present invention uses a temporary storage tank to intermittently store the injected gas, which can provide a phased stable pressure environment for the entire chamber during a long injection process, and in the stable stage, the driving mechanism and the lifting mechanism can drive the leakage positioning unit to achieve the purpose of leakage detection inside the chamber, and the equipment can also achieve the positioning effect of the specific leakage position.

[0005] In order to achieve the above-mentioned objectives, the present invention is implemented through the following technical solutions: a gas leakage detection sensor for a compressed air energy storage chamber, comprising a gas leakage detection sensor body, a driving mechanism, a lifting mechanism and a temporary storage tank, the gas leakage detection sensor body comprising a gas leakage positioning unit and a gas leakage monitoring unit, the gas leakage detection sensor body, the driving mechanism, the lifting mechanism and the temporary storage tank are all installed inside the compressed air energy storage chamber, and the top of the temporary storage tank is connected to an air supply pipe, the surface of the air supply pipe is installed with a driving mechanism, the driving mechanism is fixed to the top of the chamber, the top of the surface of the temporary storage tank is provided with a hole, and the hole at the top of the temporary storage tank is embedded with a gas leakage monitoring unit, a transmission arm is welded to the side of the driving mechanism, a lifting mechanism is welded to the end of the transmission arm, the surface of the lifting mechanism is sleeved with a gas leakage positioning unit, and the bottom of the lifting mechanism is pressed on the floor of the chamber by inserting a roller.

[0006] Furthermore, a connecting hole is opened on the outer side of the bottom of the temporary storage tank, an electric lifting rod is screwed to the top of the inner wall of the temporary storage tank, an inner convex plate is screwed to the bottom of the electric lifting rod, and a sealing ring is integrally formed on the side of the inner convex plate.

[0007] Furthermore, the outer side of the sealing ring is in contact with the inner wall of the temporary storage tank, and the sealing ring is used to seal each communicating hole from the inside. The air leakage monitoring unit includes a pressing plate, a pressure module and a supporting plate.

[0008] Furthermore, a column is inserted into the bottom of the pressing plate, the supporting plate is fixed to the bottom end of the column, the bottom of the pressing plate is screwed with a pressure module, a sealing film is attached to the edge of the supporting plate, and an adhesive layer is coated on the edge of the sealing film. The sealing film is connected to the inner wall of the temporary storage tank through the adhesive layer, and the pressing plate presses the pressure module on the surface of the temporary storage tank.

[0009] Furthermore, the driving mechanism includes a first motor, a transmission box and a gear, the bottom of the gear is integrally formed with a rotating sleeve, the first motor is screwed to the top of the chamber, and the transmission box is connected to the outer side of the output shaft of the first motor.

[0010] Furthermore, a support ring is welded to the surface of the air supply pipe, the rotating sleeve is pressed on the surface of the support ring, one end of the transmission arm and the surface of the rotating sleeve are integrated into one, the edge of the gear is embedded in the interior of the transmission box, and the first motor controls the gear to rotate through the drive shaft and the transmission parts inside the transmission box.

[0011] Furthermore, the lifting mechanism includes a second motor, a screw and a guide rod, the other end of the transmission arm is integrally formed with an end plate, the bottom of the end plate is welded with a baffle plate, the output of the second motor is inserted with a screw, and the bottom of the end plate is welded with a guide rod.

[0012] Furthermore, the air leakage positioning unit includes a lifting plate, a rotating ring and a pressure-bearing blade. The surface of the lifting plate is provided with a threaded hole and a guide hole. The side of the lifting plate is provided with a rotating groove. The pressure-bearing blade is inserted into the side of the rotating ring, and the screw rod passes through the inside of the threaded hole.

[0013] Furthermore, the guide rod passes through the inside of the guide hole, and a ball is embedded on the inner wall of the rotating ring, and the ball is embedded in the inside of the rotating groove. A detection chamber is welded on the surface of the lifting plate, and a groove is opened inside the detection chamber. A speed measurement module is screwed on the top of the detection chamber.

[0014] A detection method using the above-mentioned air leakage detection sensor comprises the following steps:

[0015] Step 1: Inject external compressed air into the temporary storage tank inside the energy storage chamber through the air supply pipe;

[0016] Step 2: During the injection process, the driving mechanism and the lifting mechanism are activated to control the continuous movement of the air leakage positioning unit;

[0017] Step 3: Start the hydraulic equipment inside the temporary storage tank to transport the injected compressed gas into the chamber;

[0018] Step 4: During storage, use the gas leakage monitoring unit to detect whether there is any gas leakage inside the chamber;

[0019] Step 5: After detecting the leak, repeat step 2 to locate the leak area;

[0020] Step 6: Obtain leakage degree data.

[0021] Beneficial effects of the present invention:

[0022] The present invention uses a temporary storage tank to intermittently store the injected gas, which can provide a phased stable pressure environment for the entire chamber during a long injection process. In the stable stage, the driving mechanism and the lifting mechanism are used to drive the leakage positioning unit to realize rotation and lifting movement along the interior of the chamber. When approaching the leakage area, the purpose of detecting the leakage problem inside the chamber can be achieved through the influence of the airflow at close range.

[0023] During a long storage period, the present invention can locate the specific leakage location once a leakage problem is detected by means of the movement effect of the leakage locating unit, thereby obtaining more comprehensive leakage problem data and reducing the difficulty of subsequent maintenance and repair.

[0024] This detection method can provide effective gas leakage monitoring function both during the gas injection process and during long-term storage, with high monitoring accuracy. When relying on airflow for detection during the gas injection process, it can also reduce the interference with the above-mentioned monitoring process caused by the discharge of gas from the temporary storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a diagram of the installation structure of a gas leakage detection sensor for a compressed air energy storage chamber according to the present invention;

[0026] Figure 2 It is a structural schematic diagram of the driving mechanism part of the present invention;

[0027] Figure 3 It is a structural schematic diagram of the lifting mechanism of the present invention;

[0028] Figure 4 This is a schematic structural diagram of the air leakage locating unit of the present invention;

[0029] Figure 5 This is a disassembled diagram of the air leakage locating unit of the present invention;

[0030] Figure 6 This is a structural diagram of the interior of the temporary storage tank of the present invention;

[0031] Figure 7 It is a structural diagram of the air leakage monitoring unit of the present invention;

[0032] Figure 8 This is a flow chart of a method for detecting air leakage in a compressed air energy storage chamber according to the present invention;

[0033] In the figure: 1. Temporary storage tank; 2. Air supply pipe; 3. Driving mechanism; 4. Lifting mechanism; 5. Leakage positioning unit; 6. Leakage monitoring unit; 7. First motor; 8. Transmission box; 9. Gear; 10. Rotating sleeve; 11. Support ring; 12. Transmission arm; 13. End plate; 14. Second motor; 15. Baffle plate; 16. Screw rod; 17. Guide rod; 18. Lifting plate; 19. Rotating ring; 20. Pressure blade; 21. Inspection chamber; 22. Speed ​​measurement module; 23. Groove; 24. Threaded hole; 25. Guide hole; 26. Rotating groove; 27. Ball; 28. Connecting hole; 29. ​​Sealing ring; 30. Inner convex plate; 31. Electric lifting rod; 32. Pressing plate; 33. Pressure module; 34. Column; 35. Support plate; 36. Sealing film; 37. Adhesive layer DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0035] See also Figures 1 to 8 The present invention provides the following technical solutions: a gas leakage detection sensor for a compressed air energy storage chamber, comprising a gas leakage detection sensor body, a driving mechanism 3, a lifting mechanism 4 and a temporary storage tank 1, wherein the gas leakage detection sensor body comprises a gas leakage positioning unit 5 and a gas leakage monitoring unit 6, the gas leakage detection sensor body, the driving mechanism 3, the lifting mechanism 4 and the temporary storage tank 1 are all installed inside the compressed air energy storage chamber, and the top of the temporary storage tank 1 is connected to the air supply pipe 2, the surface of the air supply pipe 2 is installed with a driving mechanism 3, the driving mechanism 3 is fixed to the top of the chamber, the top of the surface of the temporary storage tank 1 is provided with a hole, and the hole at the top of the temporary storage tank 1 is embedded with a gas leakage monitoring unit 6, a transmission arm 12 is welded to the side of the driving mechanism 3, and a lifting mechanism 4 is welded to the end of the transmission arm 12, the surface of the lifting mechanism 4 is sleeved with a gas leakage positioning unit 5, and the bottom of the lifting mechanism 4 is pressed on the floor of the chamber by a roller inserted therein. The gas leakage detection sensor is installed on the temporary storage tank 1 and the lifting mechanism 4, and realizes the effects of detecting gas leakage, locating the gas leakage position, and judging the degree of gas leakage through multiple intelligent sensing elements.

[0036] When the present invention is used, first, external compressed air is injected into the temporary storage tank 1 inside the energy storage chamber through the air supply pipe 2. During the injection process, the electric lifting rod 31 inside the temporary storage tank 1 is periodically controlled to block and open the communicating hole 28, so that the air pressure inside the chamber can also present a step-by-step increase process; when the temporary storage tank 1 and the interior of the chamber are in an independent and separated state, the driving mechanism 3 and the lifting mechanism 4 are started to control the air leakage positioning unit 5 to move continuously, and in this process, there is no need to use the air leakage monitoring module but the air leakage positioning unit 5 is directly started to monitor whether there is air leakage on the inner wall of the chamber; the pressure is completed. After the compressed gas is injected, the hydraulic equipment inside the temporary storage tank 1 is finally started to transport the injected compressed gas to the interior of the chamber. After the air pressure in the temporary storage tank 1 and the interior of the chamber are kept consistent, the temporary storage tank 1 can be sealed again. During the storage process, the leakage monitoring unit 6 is used to detect whether there is any leakage in the chamber. This process can convert the leakage state into a pressure value, and determine whether there is a leakage problem by whether the pressure value changes. After the leakage is detected, the above-mentioned process of locating the leakage position is repeated; the degree of leakage is determined according to the speed data in the leakage monitoring unit 6.

[0037] In this embodiment, the bottom outer side of the temporary storage tank 1 is provided with a communication hole 28. An electric lift rod 31 is screwed to the top of the inner wall of the temporary storage tank 1. An inner convex plate 30 is screwed to the bottom of the electric lift rod 31. A sealing ring 29 is integrally formed on the side of the inner convex plate 30. The outer side of the sealing ring 29 is in contact with the inner wall of the temporary storage tank 1 and is used to partially block each communication hole 28 from the inside. The air leakage monitoring unit 6 includes a pressing plate 32, a pressure module 33, and a support plate 35. The bottom of the pressing plate 32 is inserted with a column 34, and the supporting plate 35 is fixed to the bottom end of the column 34. The bottom of the pressing plate 32 is screwed with a pressure module 33. The edge of the supporting plate 35 is attached with a sealing film 36, and the edge of the sealing film 36 is coated with an adhesive layer 37. The sealing film 36 is connected to the inner wall of the temporary storage tank 1 through the adhesive layer 37. The pressing plate 32 presses the pressure module 33 on the surface of the temporary storage tank 1. By using the temporary storage tank 1 to intermittently store the injected gas, a staged stable pressure environment can be provided to the entire chamber during the long injection process. In the stable stage, the driving mechanism 3 and the lifting mechanism 4 drive the leakage positioning unit 5 to rotate and lift along the interior of the chamber. When approaching the leakage area, the leakage problem inside the chamber can be detected through the influence of the airflow at close range.

[0038] Specifically, during the gas injection process, since the gas supply pipe 2 first transports the gas to the interior of the temporary storage tank 1, the electric lifting rod 31 at the bottom of the temporary storage tank 1 is first controlled to extend, and the connecting hole 28 is sealed with the help of the sealing ring 29. At this time, the pressure inside the temporary storage tank 1 increases as the gas injection continues, while the pressure in the external chamber remains fixed. Therefore, in this state, the gas leakage locating unit 5 can still be used to detect the leakage area on the inner wall of the chamber. During the long-term gas injection process, the electric lifting rod 31 can be intermittently controlled to rise, so that the high-pressure gas inside the temporary storage tank 1 can be discharged toward the interior of the chamber, ensuring that the above-mentioned two-stage gas delivery process can be repeated.

[0039] During the subsequent long-term storage process, when a gas leakage problem occurs on the inner wall of the chamber, a pressure difference will be generated because the interior of the temporary storage tank 1 is always in a sealed state. At this time, due to the decrease in external pressure, the support plate 35 is pushed by the high-pressure gas inside the temporary storage tank 1, causing the pressing plate 32 to move upward. Therefore, the pressure data applied to the pressure module 33 by the bottom of the pressing plate 32 will decrease. At this time, it is possible to determine whether there is a gas leakage problem in the main part of the chamber by monitoring the pressure data.

[0040] In this embodiment, the drive mechanism 3 includes a first motor 7, a transmission box 8, and a gear 9. A rotating sleeve 10 is integrally formed at the bottom of the gear 9. The first motor 7 is screwed to the top of the chamber, and the transmission box 8 is connected to the outer side of the output shaft of the first motor 7. A support ring 11 is welded to the surface of the air supply pipe 2, and the rotating sleeve 10 is pressed against the surface of the support ring 11. One end of the transmission arm 12 is integrally formed with the surface of the rotating sleeve 10. The edge of the gear 9 is embedded in the interior of the transmission box 8, and the first motor 7 controls the rotation of the gear 9 through the drive shaft and the transmission parts inside the transmission box 8.

[0041] Specifically, after starting the first motor 7, the driving shaft and the transmission box 8 at the end of the driving shaft can be driven to rotate by the first motor 7. The interior of the transmission box 8 drives the gear 9 on the air supply pipe 2 to rotate through the gear 9, thereby controlling the rotation of the rotating sleeve 10. The rotating sleeve 10 pulls the lifting mechanism 4 at the end and the leakage locating unit 5 on the lifting mechanism 4 to rotate through the transmission arm 12 on the side, so that the leakage locating unit 5 can move along the range close to the inner wall area of ​​the chamber, and cooperate with the lifting mechanism 4 to complete the subsequent determination process of the leakage point.

[0042] In this embodiment, the lifting mechanism 4 includes a second motor 14, a screw 16, and a guide rod 17. The other end of the transmission arm 12 is integrally formed with an end plate 13, and a baffle plate 15 is welded to the bottom of the end plate 13. The output of the second motor 14 is plugged into the screw 16, and the bottom of the end plate 13 is welded to the guide rod 17. The air leakage positioning unit 5 includes a lifting disk 18, a rotating ring 19, and a pressure-bearing blade 20. The surface of the lifting disk 18 is provided with a threaded hole 24 and a guide hole 25. The side of the lifting disk 18 is provided with a rotating groove 26. The pressure-bearing blade 20 is plugged into the side of the rotating ring 19, and the screw 16 passes through the inside of the threaded hole 24. The guide rod 17 passes through the guide hole 25. A ball bearing 27 is embedded in the inner wall of the rotating ring 19 and fits into the rotating groove 26. A detection chamber 21 is welded to the surface of the lifting plate 18. A groove 23 is formed in the detection chamber 21, and a speed measurement module 22 is screwed to the top of the detection chamber 21. During long-term storage, once a leak is detected, the movement of the leak locating unit 5 can be used to locate the specific leak, thereby obtaining more comprehensive leak data and reducing the difficulty of subsequent maintenance and repair.

[0043] Specifically, after starting the second motor 14, the air leakage locating unit 5 can be controlled to move up and down. When the air leakage locating unit 5 approaches the area where the air leakage occurs, approaching this location will cause the air flow rate to increase. Therefore, the airflow impacts the pressure plate exposed on the outside, causing the entire rotating ring 19 to rotate. When each pressure plate on the rotating ring 19 moves from the bottom of the speed measurement module 22 inside the groove 23, the rotation data of the rotating ring 19 can be obtained. In the process of controlling the air leakage locating unit 5 to locate the air leakage area through the driving mechanism 3 and the lifting mechanism 4, it can be determined whether it has approached the air leakage area based on the change in the speed data. After the air leakage locating unit 5 is controlled to move to the area with the maximum speed, it can be determined that the nearest area of ​​the inner wall of the cavern corresponding to the current air leakage locating unit 5 is the air leakage area, and the speed data at this time can represent the degree of the air leakage. The various intelligent sensor elements used in the present invention, including the pressure module 33 and the speed measurement module 22, are all existing mature technologies and do not fall within the scope of protection of the present invention. Therefore, their internal structure and operating principle will not be described in detail here.

[0044] This embodiment also provides a detection method using the above-mentioned air leakage detection sensor, comprising the following steps:

[0045] Step 1: First, external compressed air is injected into the temporary storage tank 1 inside the energy storage chamber through the air supply pipe 2. During the injection process, the electric lifting rod 31 inside the temporary storage tank 1 is periodically controlled to block and open the connecting hole 28, so that the air pressure inside the chamber can also show a step-by-step increase process;

[0046] Step 2: When the temporary storage tank 1 is in an independent and separated state from the interior of the chamber, the driving mechanism 3 and the lifting mechanism 4 are started to control the leakage locating unit 5 to move continuously. During this process, the leakage monitoring module is not required, but the leakage locating unit 5 is directly started to monitor whether there is leakage on the inner wall of the chamber;

[0047] Step 3: After the compressed gas is injected, the hydraulic equipment inside the temporary storage tank 1 is finally started to transport the injected compressed gas into the interior of the chamber. After the air pressure inside the temporary storage tank 1 and the chamber are kept consistent, the temporary storage tank 1 can be sealed again;

[0048] Step 4: During the storage process, the leakage monitoring unit 6 is used to detect whether there is leakage inside the chamber. This process can convert the leakage state into a pressure value, and determine whether there is a leakage problem by whether the pressure value changes;

[0049] Step 5: After detecting the leak, repeat step 2 to locate the leak area;

[0050] Step 6: Determine the degree of leakage based on the rotation speed data in the leakage monitoring unit 6.

[0051] This method can provide effective gas leakage monitoring function both during the gas injection process and during long-term storage, with high monitoring accuracy. When relying on airflow for detection during the gas injection process, it can also reduce the interference with the above-mentioned monitoring process caused by the discharge of gas from the temporary storage tank 1.

[0052] The basic principles, main features and advantages of the present invention are shown and described above. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention.

[0053] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A gas leakage detection sensor for a compressed air energy storage chamber, comprising a gas leakage detection sensor body, a driving mechanism (3), a lifting mechanism (4) and a temporary storage tank (1), characterized in that: The leakage detection sensor body includes a leakage positioning unit (5) and a leakage monitoring unit (6). The leakage detection sensor body, the driving mechanism (3), the lifting mechanism (4) and the temporary storage tank (1) are all installed inside the compressed air energy storage chamber, and the top of the temporary storage tank (1) is connected to the air supply pipe (2). The surface of the air supply pipe (2) is installed with a driving mechanism (3). The driving mechanism (3) is fixed to the top of the chamber. A hole is opened on the top of the surface of the temporary storage tank (1), and the leakage monitoring unit (6) is embedded in the hole on the top of the temporary storage tank (1). A transmission arm (12) is welded to the side of the driving mechanism (3), and a lifting mechanism (4) is welded to the end of the transmission arm (12). The lifting mechanism The surface of (4) is provided with a gas leakage positioning unit (5), and the bottom of the lifting mechanism (4) is pressed on the floor of the chamber by inserting a roller, and a connecting hole (28) is opened on the outer side of the bottom of the temporary storage tank (1), and an electric lifting rod (31) is screwed to the top of the inner wall of the temporary storage tank (1), and an inner convex plate (30) is screwed to the bottom of the electric lifting rod (31), and a sealing ring (29) is integrally formed on the side of the inner convex plate (30), and the outer side of the sealing ring (29) is in contact with the inner wall of the temporary storage tank (1), and the sealing ring (29) is used to seal each connecting hole (28) from the inside. The gas leakage monitoring unit (6) includes a pressing plate (32), a pressure module (33) and a supporting plate (35).

2. The gas leakage detection sensor for a compressed air energy storage chamber according to claim 1, characterized in that: The bottom of the pressing plate (32) is inserted with a column (34), the supporting plate (35) is fixed to the bottom end of the column (34), the bottom of the pressing plate (32) is screwed with a pressure module (33), the edge of the supporting plate (35) is attached with a sealing film (36), the edge of the sealing film (36) is coated with an adhesive layer (37), the sealing film (36) is connected to the inner wall of the temporary storage tank (1) through the adhesive layer (37), and the pressing plate (32) presses the pressure module (33) on the surface of the temporary storage tank (1).

3. The gas leakage detection sensor for a compressed air energy storage chamber according to claim 1, characterized in that: The driving mechanism (3) comprises a first motor (7), a transmission box (8) and a gear (9); a rotating sleeve (10) is integrally formed at the bottom of the gear (9); the first motor (7) is screwed to the top of the chamber; and the transmission box (8) is connected to the outer side of the output shaft of the first motor (7).

4. The gas leakage detection sensor for a compressed air energy storage chamber according to claim 3, characterized in that: A support ring (11) is welded to the surface of the air supply pipe (2), the rotating sleeve (10) is pressed on the surface of the support ring (11), one end of the transmission arm (12) and the surface of the rotating sleeve (10) are integrally formed, the edge of the gear (9) is embedded in the interior of the transmission box (8), and the first motor (7) controls the gear (9) to rotate through the drive shaft and the transmission member inside the transmission box (8).

5. The gas leakage detection sensor for a compressed air energy storage chamber according to claim 3, characterized in that: The lifting mechanism (4) includes a second motor (14), a screw rod (16) and a guide rod (17); the other end of the transmission arm (12) is integrally formed with an end plate (13); a baffle plate (15) is welded to the bottom of the end plate (13); a screw rod (16) is inserted into the output of the second motor (14); and a guide rod (17) is welded to the bottom of the end plate (13).

6. The gas leakage detection sensor for a compressed air energy storage chamber according to claim 5, characterized in that: The air leakage positioning unit (5) comprises a lifting disk (18), a rotating ring (19) and a pressure-bearing blade (20); a threaded hole (24) and a guide hole (25) are provided on the surface of the lifting disk (18); a rotating groove (26) is provided on the side of the lifting disk (18); the pressure-bearing blade (20) is inserted into the side of the rotating ring (19); and the screw rod (16) passes through the inside of the threaded hole (24).

7. The gas leakage detection sensor for a compressed air energy storage chamber according to claim 6, characterized in that: The guide rod (17) passes through the inside of the guide hole (25), a ball (27) is embedded on the inner wall of the rotating ring (19), and the ball (27) is embedded in the inside of the rotating groove (26). A detection chamber (21) is welded on the surface of the lifting plate (18), a groove (23) is opened inside the detection chamber (21), and a speed measurement module (22) is screwed to the top of the detection chamber (21).

8. A detection method using the gas leakage detection sensor according to claim 1, characterized in that: The following steps are involved: Step 1: Inject external compressed air into the temporary storage tank inside the energy storage chamber through the air supply pipe; Step 2: During the injection process, the driving mechanism and the lifting mechanism are activated to control the continuous movement of the air leakage positioning unit; Step 3: Start the hydraulic equipment inside the temporary storage tank to transport the injected compressed gas into the chamber; Step 4: During storage, use the gas leakage monitoring unit to detect whether there is any gas leakage inside the chamber; Step 5: After detecting the leak, repeat step 2 to locate the leak area; Step 6: Obtain leakage degree data.

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