Leakproofness detection device for compressed air energy storage utilization of abandoned mine laneway

Abstract

The invention relates to the technical field of roadway energy storage, in particular to an abandoned mine roadway compressed air energy storage utilization sealing performance detection device, and aims at solving the problem that a roadway sealing performance detection device in the prior art cannot quickly determine whether air leakage exists in a roadway or not. The device comprises a fixing pipe and an installation disc connected to the periphery of the fixing pipe in a sleeving mode, and an electromagnetic valve is installed on the fixing pipe. The multiple abutting mechanisms are evenly distributed on the periphery of the installation disc, and each abutting mechanism comprises a telescopic rod fixed to the periphery of the installation disc, an abutting plate fixed to the end, away from the installation disc, of the telescopic rod and an inflatable cushion installed on the outer wall of the side, away from the telescopic column, of the abutting plate; the periphery of the telescopic rod is movably sleeved with an adjusting cylinder which is coaxially arranged with the telescopic rod. The device can be conveniently and quickly installed in a roadway, and the interior of the roadway can be divided into different detection areas, so that the area with cracks in the roadway can be quickly found.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel energy storage, and in particular to a sealing detection device for compressed gas energy storage utilization in abandoned mine tunnels. Background Art

[0002] In the process of exploiting geological resources, corresponding mine tunnels will be excavated. After the resources are mined, these tunnels will be left behind. Direct backfilling will consume a lot of manpower and material resources. At present, with the continuous development of large-scale energy storage technology and the limitation of ground space, mine tunnels have become a good energy storage place.

[0003] However, there are corresponding problems in using mine tunnels for energy storage, that is, it is necessary to ensure the sealing of the mine tunnels. Since there are often many cracks on the inner walls of mine tunnels, the sealing of the mine tunnels needs to be monitored before energy storage. The current common method is to fill the mine tunnels with gas and then detect the air pressure changes in the mine tunnels to determine the sealing of the tunnels. However, this method cannot quickly determine which part of the tunnel has cracks or whether there is a leak. Therefore, repeated inspections are required, which is a large project and takes a lot of time. For this reason, this scheme proposes a sealing detection device for compressed gas energy storage in abandoned mine tunnels. Summary of the invention

[0004] The abandoned mine tunnel compressed gas energy storage utilization sealing detection device proposed by the present invention solves the problem that the tunnel sealing detection device in the prior art cannot quickly determine the area with cracks in the tunnel.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] Abandoned mine tunnel compressed gas energy storage utilization sealing detection device, including:

[0007] A gas delivery mechanism, comprising a fixed pipe and a mounting plate sleeved on the outer circumference of the fixed pipe, wherein a solenoid valve is mounted on the fixed pipe;

[0008] The tightening mechanism is provided in multiple numbers and evenly distributed on the periphery of the mounting plate, and the tightening mechanism comprises a telescopic rod fixed on the periphery of the mounting plate, an abutment plate fixed on one end of the telescopic rod away from the mounting plate, and an inflatable cushion installed on the outer wall of the abutment plate away from the telescopic column, the inflatable cushion is provided with a through hole, and an adjusting cylinder coaxially arranged therewith is movably sleeved on the periphery of the telescopic rod;

[0009] The anchoring mechanism comprises a screw rod rotatably connected to the outer wall of one side of the abutment plate connected to the telescopic rod, a push plate threadedly sleeved on the outer periphery of the screw rod, a movable column rotatably connected to the outer wall of one side of the push plate close to the abutment plate, a transmission sleeve movably sleeved outside the movable column and can only move along its axial direction, and a drill bit fixed to the other end of the movable column, the adjusting cylinder is transmission-connected to the screw rod, one end of the transmission sleeve is rotationally connected to the abutment plate, and the transmission sleeve is transmission-connected to the screw rod, a receiving hole for the drill bit to pass through is provided on the abutment plate, and the receiving hole is coaxially arranged with the through hole;

[0010] The air pressure measuring mechanism comprises an air pressure sensor installed on the back of the mounting plate and a display installed on the front of the mounting plate and connected to the air pressure sensor.

[0011] Through the above technical solution, not only can it be easily and quickly installed in the tunnel, but the inside of the tunnel can also be divided into different detection areas, which helps to quickly find the area where cracks exist in the tunnel.

[0012] As a further improvement of the above solution, the telescopic rod includes a fixed rod fixed to the outer periphery of the mounting plate and a fixed tube movably sleeved on the outer periphery of the fixed rod, and the outer periphery of the fixed tube is threadedly connected to a locking bolt with one end abutting against the outer wall of the fixed rod.

[0013] Through the above technical solution, the length of the telescopic column can be adjusted according to the different sizes of the tunnels.

[0014] As a further improvement of the above solution, the length of the adjusting cylinder is smaller than the length of the fixing cylinder but larger than the length of the screw rod, and a plurality of handles are fixed to the outer bottom of the adjusting cylinder.

[0015] Through the above technical solution, the adjustment tube is prevented from obstructing the installation of the locking bolt, and the length of the screw rod is shorter than the length of the fixing tube, so as to prevent the screw rod from obstructing the rotation of the handle.

[0016] As a further improvement of the above solution, a slide groove is provided on the outer periphery of the movable column along its axial direction, a slider is fixed to the bottom of the inner wall of the transmission sleeve, and one end of the slider extends into the slide groove and slides therewith.

[0017] Through the above technical solution, the movable column can be driven to rotate simultaneously with the rotation of the transmission sleeve, and the movement of the movable column inside the transmission sleeve will not be affected.

[0018] As a further improvement of the above solution, the outer periphery of the adjusting cylinder is sleeved with a driving gear, the outer periphery of the screw rod is sleeved with a linkage gear meshing with the driving gear, and the outer periphery of the transmission sleeve is sleeved with a driven gear meshing with the linkage gear.

[0019] Through the above technical solution, the screw rod and the transmission sleeve can be driven to rotate simultaneously by rotating the adjusting cylinder.

[0020] As a further improvement of the above solution, an inflation mechanism for inflating the inflatable cushion is also installed on the abutment plate.

[0021] Through the above technical solution, the inflation mechanism can be used to inflate the air cushion.

[0022] As a further improvement of the above scheme, the inflation mechanism includes an air cylinder fixed on the outer wall of one side of the abutment plate on which the telescopic rod is installed, a piston plate movably arranged in the air cylinder and a piston rod fixed on the outer wall of one side of the piston plate, the air cylinder and the piston rod are both arranged along the length direction of the telescopic rod, the other end of the piston rod extends to the outside of the air cylinder and is fixed to the push plate, an air pipe connected to the inflation cushion is installed on one side of the air cylinder, and a valve is installed on the air pipe.

[0023] Through the above technical solution, the piston rod can be driven to move simultaneously by the moving rod of the push plate, so that the air in the air cylinder can be pressed into the inflatable cushion while the drill bit drills into the inner wall of the tunnel.

[0024] As a further improvement of the above solution, an air intake pipe communicating with the interior of the air cylinder is installed on the outer periphery of the air cylinder, and a second valve is installed on the air intake pipe.

[0025] Through the above technical solution, the excess air in the cylinder can be discharged through the air intake pipe, and the outside air can be sucked into the cylinder through the air intake pipe when the air in the cylinder leaks.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. Through the coordination between the setting of the gas transmission mechanism, the clamping mechanism, the anchoring mechanism and the air pressure measuring mechanism, when monitoring the sealing in the tunnel, multiple detection devices can be set in the tunnel, so as to divide the interior of the tunnel into different areas. During installation, the detection device is installed at a suitable position in the tunnel, and then the clamping mechanism is adjusted to clamp the clamping plate against the inner wall of the tunnel, and finally the drill bit is drilled into the inner wall of the tunnel to fix the detection device, and then the external sealing plate is laid along the monitoring mechanism, so that a certain section in the tunnel can be easily sealed, and then the sealed part is filled with gas, and then the air pressure changes in the sealed space are observed through the display to determine whether cracks appear in this section of space, thereby achieving the purpose of quickly determining the location of the cracks.

[0028] 2. Through the cooperation between the inflation mechanism and the anchoring mechanism, the air in the air cylinder can be transported to the inflation cushion while the drill bit drills into the inner wall of the tunnel, so that the inflation cushion expands, and then the gap between the abutment plate and the inner wall of the tunnel can be blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 for Figure 1 A schematic diagram of the structure of the tightening mechanism, the inflation mechanism and the transmission mechanism;

[0031] Figure 3 for Figure 2 The front cross-sectional view in;

[0032] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0033] Figure 5 It is a structural schematic diagram of the drill bit of the present invention when it is extended;

[0034] Figure 6 It is a schematic diagram of the mechanism of the mounting plate and the air pressure sensor of the present invention;

[0035] Figure 7 This is a schematic diagram of the structure when multiple detection devices are connected.

[0036] Description of main symbols:

[0037] 1. Mounting plate; 2. Fixing tube; 3. Solenoid valve; 4. Clamping mechanism; 401. Fixing rod; 402. Fixing cylinder; 403. Abutment plate; 404. Inflatable cushion; 5. Adjusting cylinder; 6. Screw; 7. Transmission sleeve; 8. Air cylinder; 9. Piston rod; 10. Movable column; 11. Push plate; 12. Intake pipe; 13. Handle; 14. Driving gear; 15. Linkage gear; 16. Driven gear; 17. Through hole; 18. Display; 19. Locking bolt; 20. Drill bit; 21. Slide groove; 22. Slider; 23. Air pressure sensor; 24. Piston plate. DETAILED DESCRIPTION

[0038] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0039] Embodiment 1:

[0040] Please combine Figure 1 - Figure 7The abandoned mine tunnel compressed gas energy storage utilization sealing detection device of this embodiment includes:

[0041] The gas transmission mechanism comprises a fixed pipe 2 and a mounting plate 1 sleeved on the outer periphery of the fixed pipe 2, and a solenoid valve 3 is mounted on the fixed pipe 2;

[0042] The tightening mechanism 4 is set to be multiple and evenly distributed on the periphery of the mounting plate 1. The tightening mechanism 4 includes a telescopic rod fixed on the periphery of the mounting plate 1, an abutment plate 403 fixed on the end of the telescopic rod away from the mounting plate 1, and an inflatable cushion 404 installed on the outer wall of the abutment plate 403 away from the telescopic column. The inflatable cushion 404 is provided with a through hole 17. The telescopic rod includes a fixed rod 401 fixed on the periphery of the mounting plate 1 and a fixed tube 402 movably sleeved on the periphery of the fixed rod 401. The periphery of the fixed tube 402 is screwed with a locking screw having one end abutting against the outer wall of the fixed rod 401. Bolt 19, the abutment plate 403 is fixed to one end of the fixed tube 402. When the locking bolt 19 is loosened, the fixed tube 402 can move around the fixed rod 401. When the locking bolt 19 is tightened, the fixed tube 402 can be locked by utilizing the static friction between the locking bolt 19 and the fixed rod 401. Because the inner wall of the tunnel is uneven, the setting of the inflatable cushion 402 can expand the inflatable cushion 402 by inflating it when the abutment plate 403 is pressed against the inner wall of the tunnel, thereby sealing the gap between the abutment plate 403 and the tunnel.

[0043] The outer periphery of the telescopic rod is movably sleeved with an adjusting cylinder 5 coaxially arranged therewith. The adjusting cylinder 5 is movably sleeved on the outer periphery of the fixing cylinder 402 and coaxially arranged therewith. One end of the adjusting cylinder 5 is rotatably connected to the abutting plate 403 .

[0044] The anchoring mechanism includes a screw rod 6 rotatably connected to the outer wall of the side of the abutment plate 403 connected to the telescopic rod, a push plate 11 threadedly sleeved on the outer periphery of the screw rod 6, a movable column 10 rotatably connected to the outer wall of the side of the push plate 11 close to the abutment plate 403, a transmission sleeve 7 movably sleeved outside the movable column 10 and can only move along its axial direction, and a drill bit 20 fixed to the other end of the movable column 10, the outer periphery of the adjusting cylinder 5 is sleeved with a driving gear 14, the outer periphery of the screw rod 6 is sleeved with a linkage gear 15 meshing with the driving gear 14, the outer periphery of the transmission sleeve 7 is sleeved with a driven gear 16 meshing with the linkage gear 15, and the length of the adjusting cylinder 5 is less than the length of the fixed cylinder 402 The length of the adjusting cylinder 5 is greater than that of the screw 6, and a plurality of grips 13 are fixed to the bottom of the outer circumference of the adjusting cylinder 5. When the abutment plate 403 abuts against the inner wall of the tunnel, the grip 13 is held to rotate the adjusting cylinder 5 clockwise, thereby driving the screw 6 and the transmission sleeve 7 to rotate at the same time. At this time, the push plate 11 moves toward the side close to the abutment plate 403, and the rotation of the transmission sleeve 7 will drive the movable column 10 and the drill bit 20 to rotate synchronously. The movable column 10 will also move synchronously with the push button 11 while rotating, so that the drill bit 20 can be pushed toward the inner wall of the tunnel. Two anchoring mechanisms are installed on the same abutment plate 403, and the two anchoring mechanisms are respectively located on both sides of the adjusting cylinder 5.

[0045] The outer periphery of the movable column 10 is provided with a slide groove 21 arranged along its axial direction, and a slider 22 is fixed to the bottom of the inner wall of the transmission sleeve 7. One end of the slider 22 extends into the slide groove 21 and slides therewith. The arrangement of the slide groove 21 and the slider 22 allows the movable column to rotate synchronously with the transmission sleeve 7.

[0046] The diameter of the driving gear 14 is larger than that of the linkage gear 15 , and the diameter of the linkage gear 15 is larger than that of the driven gear 16 . The large gear drives the small gear to rotate, thereby saving more effort.

[0047] The abutment plate 403 is provided with a receiving hole for the drill bit 20 to pass through, and the receiving hole is coaxially arranged with the through hole 17 , and the number of the receiving hole and the through hole 17 is the same as the number of the anchoring mechanisms.

[0048] The air pressure measuring mechanism includes an air pressure sensor 23 installed on the back of the mounting plate 1 and a display 18 installed on the front of the mounting plate 1 and connected to the air pressure sensor 23. The display 18 is connected to an external receiving terminal via a wireless signal. The air pressure sensor can monitor the air pressure in the tunnel and display the value through the display 18, and then the display 18 sends the value to the external receiving terminal. The solenoid valve 3 is also electrically connected to the display 18 and can be opened or closed under the control of the electric display 18.

[0049] The implementation principle of this embodiment is as follows: when detecting the sealing of the tunnel, multiple detection devices can be installed in the tunnel, so that the inside of the tunnel can be divided into different detection areas. When installing the detection device, first adjust the length of the telescopic column so that the abutment plates 403 in the multiple abutment mechanisms abut against the inner wall of the tunnel, and then adjust the anchoring mechanism to fix the abutment plates 403 on the inner wall of the tunnel. When adjusting the anchoring mechanism, hold the handle 13 and rotate the adjustment cylinder 5 clockwise. After the adjustment cylinder 5 rotates, it drives the screw 6 to rotate counterclockwise, and the screw 6 drives the transmission sleeve 7 to rotate clockwise. After the screw 6 rotates counterclockwise, it drives the push plate 11 to move to the side close to the abutment plate 403, which can drive the movable column 10 and the drill bit 20 to move synchronously. At the same time, the rotation of the transmission sleeve 7 will drive the movable column 10 to rotate synchronously, so that the drill bit 20 can rotate while moving. When the drill bit 20 passes through the through hole 17 and After contacting the inner wall of the tunnel, it will drill into the inner wall of the tunnel, so that the abutment plate 403 can be fixed on the inner wall of the tunnel. All anchoring mechanisms are fixed on the inner wall of the tunnel in the same way to fix the detection device, and then air is inflated into the inflatable cushion 404 to make the inflatable cushion 404 expand, so that the gap between the abutment plate 403 and the inner wall of the tunnel can be blocked. Next, the sealing plate is installed on the detection device to completely isolate the two adjacent monitoring areas, and then the solenoid valve 3 on the fixed pipe 2 is opened, and then the fixed pipe 2 is used to inflate the tunnel so that the air pressure in the tunnel is greater than the atmospheric pressure. According to the set standard, when the air pressure in the tunnel reaches the set value, the solenoid valve 3 is closed and the ventilation is stopped. Then, the pressure changes in different areas of the tunnel are monitored through the data transmitted back by the display. When the pressure in a certain area drops too fast, it means that there is a crack in the area.

[0050] Embodiment 2:

[0051] Combination Figure 1 - Figure 3 and Figure 5 - Figure 7The present embodiment is further improved on the basis of the embodiment 1 in that: an inflating mechanism for inflating the inflatable cushion 404 is also installed on the abutment plate 403, the number of the inflating mechanisms is the same as the anchoring mechanisms, and one anchoring mechanism corresponds to one inflating mechanism, the inflating mechanism comprises an air cylinder 8 fixed on the outer wall of one side of the abutment plate 403 on which the telescopic rod is installed, a piston plate 24 movably arranged in the air cylinder 8, and a piston rod 9 fixed on the outer wall of one side of the piston plate 24, a sealing ring is installed on the outer ring of the piston plate 24, the air cylinder 8 and the piston rod 9 are both arranged along the length direction of the telescopic rod, the other end of the piston rod 9 extends to the outside of the air cylinder 8 and is connected to the push plate 11 The air cylinder 8 is fixedly connected, and an air pipe connected to the inflatable cushion 404 is installed on one side of the air cylinder 8, and a valve 1 is installed on the air pipe. The setting of the valve 1 can block the connection between the inflatable cushion 404 and the air cylinder. When the push plate 11 moves, the piston rod 9 will be driven to move synchronously, so that the air in the air cylinder 8 can be pressed into the inflatable cushion 404 during the process of the push plate 11 moving toward the side close to the abutment plate 403, so that the inflatable cushion 404 can expand, thereby blocking the gap between the abutment plate 403 and the inner wall of the tunnel. Conversely, as the push plate 11 moves toward the side away from the abutment plate 403, the air in the inflatable cushion 404 can be sucked back.

[0052] An air intake pipe 12 connected to the interior of the air cylinder 8 is installed on the outer periphery of the air cylinder 8, and a valve 2 is installed on the air intake pipe 12. The setting of the air intake pipe 12 can discharge the air in the air cylinder 8 or inhale the outside air into the air cylinder 8 when the valve 2 is opened, thereby compensating for the air that may be leaked during the movement of the piston plate 24.

[0053] The implementation principle of this embodiment is as follows: when the push plate 11 moves, it will drive the piston rod 9 to move synchronously. When valve 2 is open and valve 1 is closed, when the push plate 11 moves toward the side close to the abutment plate 403, it will drive the piston rod 9 to move toward the inside of the air cylinder 8, so that the air in the air cylinder 8 can be pressed into the inflatable cushion 404. Conversely, when the push plate 11 moves toward the side away from the abutment plate 403, the air in the inflatable cushion 404 can be sucked back.

[0054] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. Abandoned mine tunnel compressed gas energy storage utilization sealing detection device, characterized in that: include: A gas delivery mechanism, comprising a fixed pipe and a mounting plate sleeved on the outer circumference of the fixed pipe, wherein a solenoid valve is mounted on the fixed pipe; The tightening mechanism is provided in multiple numbers and evenly distributed on the periphery of the mounting plate, and the tightening mechanism comprises a telescopic rod fixed on the periphery of the mounting plate, an abutment plate fixed on one end of the telescopic rod away from the mounting plate, and an inflatable cushion installed on the outer wall of the abutment plate away from the telescopic column, the inflatable cushion is provided with a through hole, and an adjusting cylinder coaxially arranged therewith is movably sleeved on the periphery of the telescopic rod; The anchoring mechanism comprises a screw rod rotatably connected to the outer wall of one side of the abutment plate connected to the telescopic rod, a push plate threadedly sleeved on the outer periphery of the screw rod, a movable column rotatably connected to the outer wall of one side of the push plate close to the abutment plate, a transmission sleeve movably sleeved outside the movable column and can only move along its axial direction, and a drill bit fixed to the other end of the movable column, the adjusting cylinder is transmission-connected to the screw rod, one end of the transmission sleeve is rotationally connected to the abutment plate, and the transmission sleeve is transmission-connected to the screw rod, a receiving hole for the drill bit to pass through is provided on the abutment plate, and the receiving hole is coaxially arranged with the through hole; The air pressure measuring mechanism comprises an air pressure sensor installed on the back of the mounting plate and a display installed on the front of the mounting plate and connected to the air pressure sensor.

2. The abandoned mine tunnel compressed gas energy storage utilization sealing detection device according to claim 1 is characterized in that: The telescopic rod comprises a fixing rod fixed on the outer periphery of the mounting plate and a fixing tube movably sleeved on the outer periphery of the fixing rod. The outer periphery of the fixing tube is threadedly connected with a locking bolt having one end abutting against the outer wall of the fixing rod.

3. The abandoned mine tunnel compressed gas energy storage utilization sealing detection device according to claim 2 is characterized in that: The length of the adjusting cylinder is smaller than that of the fixing cylinder but larger than that of the screw rod, and a plurality of handles are fixed on the outer circumference of the adjusting cylinder.

4. The abandoned mine tunnel compressed gas energy storage utilization sealing detection device according to claim 1 is characterized in that: The outer periphery of the movable column is provided with a sliding groove arranged along the axial direction thereof, and a sliding block is fixed to the bottom of the inner wall of the transmission sleeve, and one end of the sliding block extends into the sliding groove and is slidably connected therewith.

5. The abandoned mine tunnel compressed gas energy storage utilization sealing detection device according to claim 1, characterized in that: The outer periphery of the adjusting cylinder is sleeved with a driving gear, the outer periphery of the screw rod is sleeved with a linkage gear meshing with the driving gear, and the outer periphery of the transmission sleeve is sleeved with a driven gear meshing with the linkage gear.

6. The abandoned mine tunnel compressed gas energy storage utilization sealing detection device according to claim 1, characterized in that: The abutment plate is also provided with an inflation mechanism for inflating the air cushion.

7. The abandoned mine tunnel compressed gas energy storage utilization sealing detection device according to claim 6 is characterized in that: The inflation mechanism includes an air cylinder fixed on the outer wall of one side of the abutment plate on which the telescopic rod is installed, a piston plate movably arranged in the air cylinder and a piston rod fixed on the outer wall of one side of the piston plate. The air cylinder and the piston rod are both arranged along the length direction of the telescopic rod. The other end of the piston rod extends to the outside of the air cylinder and is fixedly connected to the push plate. An air pipe connected to the inflation cushion is installed on one side of the air cylinder, and a valve 1 is installed on the air pipe.

8. The abandoned mine tunnel compressed gas energy storage utilization sealing detection device according to claim 7 is characterized in that: An air inlet pipe communicating with the interior of the air cylinder is installed on the outer periphery of the air cylinder, and a second valve is installed on the air inlet pipe.

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