Compressed air energy storage underground artificial garage monitoring and overhauling system and method

Abstract

The invention provides a compressed air energy storage underground artificial storehouse monitoring and overhauling system which comprises a storehouse and a tunnel, a monitoring assembly is installed on the storehouse, the monitoring assembly comprises a plugging body and a guide pipe, the storehouse comprises an inner plate and a pouring layer, a sealing assembly is installed on the outer side of the pouring layer, the sealing assembly comprises a waterproof layer and a partition plate, and the waterproof layer is connected with the partition plate. A pressure measuring assembly is installed on the guide pipe, the pressure measuring assembly comprises an inner pipe and a sensor, and a ventilation assembly is arranged on the waterproof layer. According to the compressed air energy storage underground artificial garage monitoring and overhauling system and method, a corresponding area in a garage can be overhauled through a specified warning lamp; the range of troubleshooting the inner wall of the underground garage when the underground garage is overhauled is greatly reduced, energy waste caused by leakage of the underground garage is reduced, and then a better underground sealing technology can be provided. And an equipment energy-saving transformation technology is adopted, and the method is suitable for monitoring and overhauling the compressed air energy storage underground artificial cavern.

Description

Technical Field

[0001] The present invention relates to the technical field of monitoring and maintenance equipment for underground artificial caverns, and particularly to a monitoring and maintenance system and method for an underground artificial cavern for compressed air energy storage. Background Technique

[0002] Underground artificial caverns are commonly used structures for energy storage using compressed air. To ensure the working safety of underground artificial caverns for compressed air energy storage, monitoring and maintenance equipment for underground artificial caverns is often required. The invention patent with the patent application number CN202311083153.2 discloses an underground compressed air energy storage chamber surrounding rock drainage system and method. This drainage system can effectively avoid the risk of buckling failure of the steel lining due to external water pressure, and fully ensure the airtightness of the chamber. This drainage method can meet the drainage requirements of chambers under different hydrogeological conditions, and has good universality and promotion value. Therefore, the present invention can simultaneously solve the technical problems of drainage inside and outside the chamber, and avoid the buckling failure of the steel lining sealing layer of the chamber caused by the increase in external water pressure when the gas storage chamber is in a maintenance state. The invention patent with the patent application number CN202310980880.2 discloses a method for reforming a gas storage chamber cavity, which uses a solidifying material to displace and clean the residual gas-liquid mixture impurities in the cavity, improving the cavity capacity. And after the solidifying material is completely solidified, a cavity boundary protection layer with high compressive strength, strong compactness and good stability is formed, effectively ensuring the airtightness of the gas storage chamber and improving the gas storage safety. According to the disclosed technical solutions, when the existing monitoring and maintenance equipment for underground artificial caverns is in use, on the one hand, when monitoring the airtightness of the cavern, it can only monitor the whole, and a comprehensive inspection inside the cavern is required after leakage is found, reducing the work efficiency of maintaining the cavern. On the other hand, when using the sensors in the inner pipe to monitor the leakage of the cavern, if the leakage is relatively serious, it is easy to cause the conduit to be damaged by the compressed air leaking from the cavern, which is not conducive to ensuring the safety of the monitoring mechanism. On the third hand, when using the air pressure in the conduit to ensure airtightness, in order to ensure the air pressure intensity, air pressure supplementation work is often required, and it is easy to cause the air pump to work frequently due to conduit leakage, which is not conducive to energy conservation and ensuring the safety of the air pump. Summary of the Invention

[0003] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a monitoring and maintenance system for an underground artificial cavern for compressed air energy storage and its construction method, so as to solve the problems raised in the above background technology. The structure of the present invention is novel and has diverse functions, and is suitable for monitoring and maintaining underground artificial caverns for compressed air energy storage.

[0004] To achieve the above object, the present invention is realized by the following technical solutions: A monitoring and maintenance system for an underground artificial chamber for compressed air energy storage, including a chamber and a tunnel. A monitoring component is installed on the chamber. The monitoring component includes a plugging body and a conduit. The chamber includes an inner plate and a casting layer. A sealing component is installed on the outer side of the casting layer. The sealing component includes a waterproof layer and a partition. A pressure measuring component is installed on the conduit. The pressure measuring component includes an inner tube and a sensor. A ventilation component is arranged on the waterproof layer. The ventilation component includes permeable concrete and a check valve. A pressure relief component is installed on the inner tube. The pressure relief component includes a pull wire and a pressure relief valve. An air supplement component is installed at one end of the conduit. The air supplement component includes an air pump and a clamping cover. An activity component is installed on the inner tube. The activity component includes a slider and a button one.

[0005] Further, one end of the plugging body is built and formed on one side of the chamber, and the other end of the plugging body is built and formed on the other side of the tunnel. The casting layer is cast and formed on the outer side of the inner plate. The partition is bonded to the outer side of the casting layer. The waterproof layer is bonded to the outer side of the partition. The permeable concrete is cast and formed on the inner side of the waterproof layer. The permeable concrete is cast on the outer side of the casting layer.

[0006] Further, one end of the conduit is installed on the inner side of the tunnel. The other end of the conduit sequentially bypasses the plugging body and the outer side of the chamber and extends to the inner side of the tunnel. The conduits are evenly distributed on the outer side of the chamber. The inner tube is integrally formed on the inner side of the conduit.

[0007] Further, the check valve is installed on the inner side of the waterproof layer. A round plate is welded to the outer side of the check valve. A snap ring is welded to the outer side of the round plate. Both the snap ring and the round plate are stuck on the inner side of the waterproof layer.

[0008] Further, through holes are integrally formed on the conduit and the inner tube. The inner side of the waterproof layer is unidirectionally communicated with the inner side of the inner tube through the check valve and the through holes. Both ends of the pull wire are respectively bonded to the inner wall of the inner tube. The pull wire is distributed on both sides of the through hole.

[0009] Further, the sensor is installed on the inner side of the inner tube. The sensor is located inside the through hole. The permeable concrete is separated into multiple permeable concrete units by the partition. The permeable concrete units, the check valve, the through holes and the sensor correspond one by one. The pressure relief valve is bonded to the inner wall of the inner tube. The inner side of the inner tube is communicated with the outer side of the other end of the inner tube through the pressure relief valve.

[0010] Further, the air pump is installed on the inner side of the tunnel through bolts. The air pump is connected to the conduit through a connecting pipe. One end of the inner pipe is provided with a chute, and the slider is stuck inside the chute. The bottom of the slider is connected to the inner wall of the chute through a first spring, and the first button is adhered to the bottom of the chute.

[0011] Further, the clamping cover is welded on the outer side of the air pump. A sliding sleeve is welded on the clamping cover. A piston is stuck inside the sliding sleeve. The bottom of the piston is connected to the inner wall of the sliding sleeve through a second spring. A filter plug is adhered to the inner wall of the bottom of the sliding sleeve, and a second button is adhered to the top of the filter plug.

[0012] Further, a warning light is installed on the inner side of the tunnel. The first button is connected to the air pump through an electric wire. The second button and the sensor are both connected to the warning light through electric wires.

[0013] An overhaul method for a monitoring and overhaul system of an underground artificial chamber for compressed air energy storage includes the following steps: 1) Excavate chambers of the chamber, tunnel and plugging body in the underground rock formation. Excavate a conduit accommodating cavity on the outer side of the chamber, reserve a cord in the accommodating cavity, install a one-way valve at the conduit accommodating cavity, and build a tunnel; 2) Do a waterproof layer for the chamber of the chamber, hermetically adhere a partition board on the inner side of the waterproof layer, pour breathable concrete on the inner side of the partition board, build a pouring layer on the inner side of the breathable concrete and the partition board, weld and process an inner board on the inner side of the pouring layer, and then install the plugging body between the chamber and the tunnel; 3) Bind one end of the cord to one end of the conduit, and pull the other end of the cord to pass the conduit from the inner side of the tunnel through the plugging body and the outer side of the chamber and back to the inner side of the tunnel; 4) Fix the air pump on the inner side of the tunnel, and turn on the air pump. The air pump injects gas between the conduit and the inner pipe. The gas causes the conduit to expand, so that the conduit seals the conduit accommodating cavity. The conduit near the vent has a gap with the conduit accommodating cavity under the limit of the pull wire; 5) When there is a leak in the chamber, the leaked gas passes through the breathable concrete, and enters the inner side of the conduit accommodating cavity through the one-way valve under the seal of the partition board and the waterproof layer, and then enters the vent through the gap between the conduit and the accommodating cavity. Then, the increase in air pressure is monitored by the sensor, and the warning light is used for alarm work. Personnel perform maintenance on the corresponding area in the chamber through the designated warning light.

[0014] Compared with the prior art, the beneficial effects of the present invention: 1. When the monitoring and maintenance system for the underground artificial chamber of compressed air energy storage is in use, chambers for the underground rock formation to excavate chambers, tunnels and plugs are created, a conduit receiving chamber is excavated outside the chamber, a cord is reserved in the receiving chamber, a check valve is installed at the conduit receiving chamber, a tunnel is built, a waterproof layer is applied to the chamber of the chamber, a partition is hermetically bonded to the inner side of the waterproof layer, breathable concrete is poured on the inner side of the partition, a casting layer is built on the inner side of the breathable concrete and the partition, an inner plate is welded and processed on the inner side of the casting layer, then the plug is installed between the chamber and the tunnel, one end of the cord is tied to one end of the conduit, and the other end of the cord is pulled, so that the conduit passes through the plug and the outside of the chamber from the inside of the tunnel and returns to the inside of the tunnel, the air pump is fixed to the inside of the tunnel, the air pump is turned on, and gas is introduced between the conduit and the inner pipe by the air pump. The gas causes the conduit to expand, thereby sealing the conduit receiving chamber. There is a gap between the conduit near the vent and the conduit receiving chamber under the limit of the pulling wire. When there is a leak in the chamber, the leaked gas passes through the breathable concrete and enters the inner side of the conduit receiving chamber through the check valve under the seal of the partition and the waterproof layer, and then enters the vent through the gap between the conduit and the receiving chamber. The inner walls of the inner pipes at both ends of the sensor are blocked by the pressure relief valve, so that the increase in air pressure is detected by the sensor, and then the alarm work is carried out through the designated warning light. Personnel can perform maintenance on the corresponding area in the chamber through the designated warning light, which can greatly reduce the scope of inspection of the inner wall of the chamber during the maintenance of the chamber, so that personnel can quickly find the leaking gap, facilitate the quick maintenance of the chamber, reduce energy waste caused by the leakage of the chamber, and thus provide a better underground storage technology; and equipment energy-saving transformation technology.

[0015] 2. When the monitoring and maintenance system for the underground artificial chamber of compressed air energy storage is in use, the waterproof layer can prevent moisture in the underground rock formation from entering the outside of the chamber, reduce the erosion of the chamber by moisture, and ensure the service life of the chamber. When the leakage rate of compressed air in the chamber is relatively high, it makes the air enter the inner side of the inner pipe through the breathable concrete, the check valve and the vent, so that the air pressure in the inner pipe rises rapidly. When the air pressure in the inner pipe increases to the threshold value of the pressure relief valve, the air pressure in the inner pipe opens the pressure relief valve to discharge the compressed air outward, avoiding damage to the inner pipe and the equipment inside the inner pipe caused by excessive air pressure in the inner pipe and ensuring the working safety of the monitoring system.

[0016] 3. When the compressed air energy storage underground artificial cave monitoring and maintenance system is in use, when the air in the conduit permeates outward from the wall of the conduit due to the effect of infiltration, the pressure on the slider in the slide groove is reduced, and the spring pushes the slider upward, thereby separating the slider from the button. The button turns on the air pump, and the air pressure is replenished into the conduit through the air pump. The air pressure causes a large expansion of the conduit away from the opening, thereby sealing and isolating the adjacent openings to prevent the leaked gas from affecting other sensors and ensuring accurate positioning of the leakage position on the cave. When a leak occurs on the conduit, the air pump needs to work for a long time. Since the temperature underground where the tunnel is located is relatively stable, there will be no large temperature difference due to seasonal changes. At this time, the temperature rise in the card cover will only come from the heat generated by the work of the air pump, thereby causing the piston to be pushed downward by the air pressure in the card cover. The piston compresses the spring two downward in the sleeve and squeezes the button two. The button two turns on the warning light to remind personnel that the conduit is damaged, so that the personnel can perform timely maintenance work on the conduit to avoid affecting the monitoring of the cave due to the damage of the conduit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a monitoring and maintenance system for an underground artificial cavern with compressed air energy storage according to the present invention; Figure 2 A cross-sectional view of a monitoring and maintenance system for an underground artificial cavern for compressed air energy storage according to the present invention; Figure 3 A monitoring and maintenance system for an underground artificial cavern with compressed air energy storage according to the present invention Figure 2 A magnified schematic diagram of point A; Figure 4 This is a structural schematic diagram of a port of a monitoring and maintenance system for an underground artificial cavern for compressed air energy storage according to the present invention; Figure 5 It is a structural schematic diagram of a pressure relief valve of a monitoring and maintenance system for an underground artificial cavern for compressed air energy storage according to the present invention; Figure 6 This is a structural schematic diagram of a circular plate of a monitoring and maintenance system for an underground artificial cavern with compressed air energy storage according to the present invention; Figure 7 It is a structural schematic diagram of an air pump of a monitoring and maintenance system for an underground artificial cavern with compressed air energy storage according to the present invention; Figure 8 A schematic diagram of a method for monitoring and repairing a compressed air energy storage underground artificial cavern of the present invention; In the figure: 1, adit; 2, tunnel; 3, plugging body; 4, conduit; 5, inner plate; 6, pouring layer; 7, permeable concrete; 8, waterproof layer; 9, partition board; 10, inner pipe; 11, check valve; 12, through port; 13, sensor; 14, guy wire; 15, round plate; 16, snap ring; 17, pressure relief valve; 18, air pump; 19, slider; 20, spring one; 21, button one; 22, card cover; 23, sliding sleeve; 24, piston; 25, filter plug; 26, spring two; 27, button two. Detailed implementation manner

[0018] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0019] Please refer to Figures 1 to 8, the present invention provides a technical solution: a monitoring and maintenance system for an underground artificial cavern for compressed air energy storage, including a cavern 1 and a tunnel 2. A monitoring component is installed on the cavern 1, and the monitoring component includes a plugging body 3 and a conduit 4. The cavern 1 includes an inner plate 5 and a pouring layer 6. A sealing component is installed on the outer side of the pouring layer 6, and the sealing component includes a waterproof layer 8 and a partition plate 9. A pressure measuring component is installed on the conduit 4, and the pressure measuring component includes an inner tube 10 and a sensor 13. A ventilation component is provided on the waterproof layer 8, and the ventilation component includes permeable concrete 7 and a one-way valve 11. A pressure relief component is installed on the inner tube 10, and the pressure relief component includes a wire 14 and a pressure relief valve 17. An air supply component is installed at one end of the conduit 4, and the air supply component includes an air pump 18 and a clamping cover 22. A movable component is installed on the inner tube 10, and the movable component includes a slider 19 and a button 21. A through hole 12 is integrally formed on the conduit 4 and the inner tube 10. The inner side of the waterproof layer 8 is in one-way communication with the inner side of the inner tube 10 through the one-way valve 11 and the through hole 12. Both ends of the wire 14 are adhesively bonded to the inner wall of the inner tube 10, and the wire 14 is distributed on both sides of the through hole 12. When in use, a chamber of the cavern 1, the tunnel 2 and the plugging body 3 is excavated in the underground rock formation, a conduit accommodation cavity is excavated on the outer side of the cavern 1, a rope is reserved in the accommodation cavity, the one-way valve 11 is installed at the conduit accommodation cavity, the tunnel 2 is built, a waterproof layer 8 is made for the chamber of the cavern 1, the partition plate 9 is hermetically bonded to the inner side of the waterproof layer 8, and the permeable concrete 7 is poured on the inner side of the partition plate 9. The pouring layer 6 is built on the inner side of the permeable concrete 7 and the partition plate 9, and the inner plate 5 is welded and processed on the inner side of the pouring layer 6. Then the plugging body 3 is installed between the cavern 1 and the tunnel 2. One end of the rope is tied to one end of the conduit 4, and the other end of the rope is pulled. The conduit 4 is passed through the plugging body 3 and the outer side of the cavern 1 from the inner side of the tunnel 2 and back to the inner side of the tunnel 2. The air pump 18 is fixed on the inner side of the tunnel 2, and the air pump 18 is turned on. The air pump 18 injects gas between the conduit 4 and the inner tube 10. The gas causes the conduit 4 to expand, and then the conduit 4 seals the conduit accommodation cavity. The conduit 4 near the through hole 12 has a gap with the conduit accommodation cavity under the limit of the wire 14. When the cavern 1 leaks, the leaked gas passes through the permeable concrete 7, and enters the inner side of the conduit accommodation cavity through the one-way valve 11 under the sealing of the partition plate 9 and the waterproof layer 8, and then enters the through hole 12 through the gap between the conduit 4 and the accommodation cavity. The inner walls of the inner tube 10 at both ends of the sensor 13 are blocked by the pressure relief valve 17. Then the pressure rise is monitored by the sensor 13, and the alarm work is carried out through a designated warning light. Personnel can repair the corresponding area in the cavern 1 through the designated warning light, which can greatly reduce the range of checking the inner wall of the cavern 1 during the maintenance work of the cavern 1. Thus, personnel can quickly find the leaking gap, which is convenient for quickly repairing the cavern 1 and reducing the energy waste caused by the leakage of the cavern 1.Furthermore, it is possible to provide a better underground storage technology; and equipment energy-saving transformation technology.

[0020] In this embodiment, one end of the plugging body 3 is built and formed on one side of the chamber 1, the other end of the plugging body 3 is built and formed on the other side of the tunnel 2, the pouring layer 6 is poured and formed on the outer side of the inner plate 5, the partition plate 9 is bonded to the outer side of the pouring layer 6, the waterproof layer 8 is bonded to the outer side of the partition plate 9, the permeable concrete 7 is poured and formed on the inner side of the waterproof layer 8, the permeable concrete 7 is poured on the outer side of the pouring layer 6, one end of the conduit 4 is installed on the inner side of the tunnel 2, the other end of the conduit 4 sequentially bypasses the outer side of the plugging body 3 and the chamber 1 and extends to the inner side of the tunnel 2, the conduits 4 are evenly distributed on the outer side of the chamber 1, the inner tube 10 is integrally formed on the inner side of the conduit 4, the one-way valve 11 is installed on the inner side of the waterproof layer 8, a circular plate 15 is welded to the outer side of the one-way valve 11, a snap ring 16 is welded to the outer side of the circular plate 15, both the snap ring 16 and the circular plate 15 are stuck on the inner side of the waterproof layer 8, the sensor 13 is installed on the inner side of the inner tube 10, the sensor 13 is located on the inner side of the through hole 12, the permeable concrete 7 is separated by the partition plate 9 into a plurality of permeable concrete units, and the permeable concrete units, the one-way valve 11, the through hole 12 and the sensor 13 correspond one by one. The pressure relief valve 17 is bonded to the inner wall of the inner tube 10, and the inner side of the inner tube 10 is communicated with the outer side of the other end of the inner tube 10 through the pressure relief valve 17. During use, the waterproof layer 8 can prevent the moisture in the underground rock formation from entering the outer side of the chamber 1, reduce the erosion of the moisture on the chamber 1, and ensure the service life of the chamber 1. When the leakage speed of the compressed air in the chamber 1 is relatively high, it makes the compressed air enter the inner side of the inner tube 10 through the permeable concrete 7, the one-way valve 11 and the through hole 12, and then the air pressure in the inner tube 10 rises rapidly. When the air pressure in the inner tube 10 increases to the threshold value of the pressure relief valve 17, the air pressure in the inner tube 10 opens the pressure relief valve 17 and discharges the compressed air outward, avoiding damage to the inner tube 10 and the equipment inside the inner tube 10 due to excessive air pressure in the inner tube 10 and ensuring the working safety of the monitoring system.

[0021] In this embodiment, the air pump 18 is installed on the inner side of the tunnel 2 by bolts. The air pump 18 is connected to the conduit 4 through a connecting pipe. One end of the inner pipe 10 is provided with a chute, and the slider 19 is stuck inside the chute. The bottom of the slider 19 is connected to the inner wall of the chute through a first spring 20. The first button 21 is adhered to the bottom of the chute. The clamping cover 22 is welded to the outer side of the air pump 18. A sliding sleeve 23 is welded to the clamping cover 22. A piston 24 is stuck inside the sliding sleeve 23. The bottom of the piston 24 is connected to the inner wall of the sliding sleeve 23 through a second spring 26. A filter plug 25 is adhered to the inner wall of the bottom of the sliding sleeve 23. A second button 27 is adhered to the top of the filter plug 25. A warning light is installed inside the tunnel 2. The first button 21 is connected to the air pump 18 through an electric wire. Both the second button 27 and the sensor 13 are connected to the warning light through electric wires. During use, when the air in the conduit 4 leaks out through the wall of the conduit 4 due to penetration, the pressure on the slider 19 inside the chute is reduced. The first spring 20 pushes the slider 19 upward, so that the slider 19 is separated from the first button 21. The first button 21 turns on the air pump 18, and the air pump 18 replenishes the air pressure in the conduit 4. The air pressure causes a large expansion at the part of the conduit 4 away from the through-port 12, thereby sealing and isolating the adjacent through-port 12, preventing the leaked gas from affecting other sensors 13, and ensuring accurate positioning of the leakage location on the underground chamber 1. When there is air leakage in the conduit 4, the air pump 18 needs to work for a long time. Since the temperature underground where the tunnel 2 is located is relatively stable and will not have a large temperature difference due to seasonal changes, the temperature rise inside the clamping cover 22 only comes from the heat generated by the operation of the air pump 18. Then the piston 24 is pushed downward by the air pressure inside the clamping cover 22. The piston 24 compresses the second spring 26 downward and presses the second button 27 inside the sliding sleeve 23. The second button 27 turns on the warning light to prompt the personnel that the conduit 4 is damaged, so that the personnel can perform timely maintenance on the conduit 4 and avoid affecting the monitoring of the underground chamber 1 due to the damage of the conduit 4.

[0022] An overhaul method for an underground artificial chamber monitoring and overhaul system for compressed air energy storage includes the following steps: 1. Excavate the chambers of the underground chamber, tunnel and plug in the underground rock formation, excavate a conduit accommodation chamber on the outside of the underground chamber, reserve a cord in the accommodation chamber, install a one-way valve at the conduit accommodation chamber, and build a tunnel; 2. Do a waterproof layer on the chamber of the underground chamber, hermetically adhere a partition board on the inner side of the waterproof layer, pour permeable concrete on the inner side of the partition board, build a pouring layer on the inner side of the permeable concrete and the partition board, weld and process an inner plate on the inner side of the pouring layer, and then install the plug between the underground chamber and the tunnel; 3. Bind one end of the cord to one end of the conduit, pull the other end of the cord, and pass the conduit through the plug and the outside of the underground chamber from the inside of the tunnel and back to the inside of the tunnel; 4. Fix the air pump on the inner side of the tunnel, and turn on the air pump. The air pump injects gas between the conduit and the inner tube. The gas causes the conduit to expand, thereby enabling the conduit to seal the conduit accommodation cavity. The conduit near the through-port has a gap with the conduit accommodation cavity under the limitation of the pulling wire. 5. When there is a leakage in the chamber, the leaked gas passes through the permeable concrete, and enters the inner side of the conduit accommodation cavity through the one-way valve under the sealing of the partition board and the waterproof layer, then enters the through-port through the gap between the conduit and the accommodation cavity. Then, the increase in air pressure is detected by the sensor, and the warning light is used for alarm work. Personnel can perform maintenance on the corresponding area in the chamber through the designated warning light.

[0023] The monitoring and maintenance system and method for an underground artificial chamber for compressed air energy storage provide electrical energy for all electrical equipment through an external power supply. When in use, chambers of an underground rock cavern 1, a tunnel 2, and a plug 3 are excavated, a conduit accommodating chamber is excavated outside the cavern 1, a cord is reserved in the accommodating chamber, a check valve 11 is installed at the conduit accommodating chamber, and a tunnel 2 is constructed. A waterproof layer 8 is made for the chamber of the cavern 1, a partition 9 is hermetically bonded inside the waterproof layer 8, breathable concrete 7 is poured inside the partition 9, a pouring layer 6 is constructed inside the breathable concrete 7 and the partition 9, and an inner plate 5 is welded and processed inside the pouring layer 6. Then, the plug 3 is installed between the cavern 1 and the tunnel 2. One end of the cord is tied to one end of a conduit 4, and the other end of the cord is pulled, so that the conduit 4 passes through the inside of the tunnel 2, through the plug 3 and the outside of the cavern 1, and returns to the inside of the tunnel 2. An air pump 18 is fixed inside the tunnel 2, and the air pump 18 is turned on. The air pump 18 injects gas between the conduit 4 and an inner tube 10. The gas causes the conduit 4 to expand, so that the conduit 4 seals the conduit accommodating chamber. The conduit 4 near the vent 12 has a gap with the conduit accommodating chamber under the limit of a pull wire 14. When there is a leak in the cavern 1, the leaked gas passes through the breathable concrete 7, and enters the inside of the conduit accommodating chamber through the check valve 11 under the seal of the partition 9 and the waterproof layer 8, and then enters the vent 12 through the gap between the conduit 4 and the accommodating chamber. A pressure relief valve 17 is used to block the inner walls of the inner tubes 10 at both ends of a sensor 13. Then, the sensor 13 monitors an increase in air pressure, and an alarm is given through a designated warning light. Personnel can perform maintenance on the corresponding area inside the cavern 1 through the designated warning light, which can greatly reduce the scope of checking the inner wall of the cavern 1 during the maintenance work of the cavern 1, so that personnel can quickly find the leaking gap, facilitating the quick maintenance work of the cavern 1, reducing energy waste caused by the leak of the cavern 1, and thus providing a better underground storage technology;As well as the equipment energy-saving transformation technology, the waterproof layer 8 can be used to prevent moisture in the underground rock formation from entering the outside of the cavern 1, reduce the erosion of moisture on the cavern 1, and ensure the service life of the cavern 1. When the speed of the compressed air leaking from the cavern 1 is high, it enters the inner side of the inner tube 10 through the breathable concrete 7, the one-way valve 11 and the port 12, thereby causing the air pressure in the inner tube 10 to rise rapidly. When the air pressure in the inner tube 10 increases to the threshold of the pressure relief valve 17, the air pressure in the inner tube 10 opens the pressure relief valve 17 to discharge the compressed air to the outside, thereby avoiding damage to the inner tube 10 and the equipment in the inner tube 10 due to excessive air pressure in the inner tube 10, and ensuring the working safety of the monitoring system. When the air in the conduit 4 penetrates outward from the pipe wall of the conduit 4 due to the effect of infiltration, the pressure on the slider 19 in the slide groove is reduced, and the spring 20 pushes the slider 19 upward, thereby separating the slider 19 from the button 21. The button 1 21 turns on the air pump 18, and the air pump 18 is used to add air pressure to the conduit 4. The air pressure causes a greater expansion at the conduit 4 away from the opening 12, and then the adjacent openings 12 are sealed and isolated to prevent the leaked gas from affecting other sensors 13, and ensure accurate positioning of the leak position on the cavern 1. When a leak occurs on the conduit 4, the air pump 18 needs to work for a long time. Since the underground temperature of the tunnel 2 is relatively stable, there will not be a large temperature difference due to seasonal changes. At this time, the temperature rise in the card cover 22 will only come from the heat generated by the air pump 18, and then the piston 24 is pushed downward by the air pressure in the card cover 22. The piston 24 compresses the spring 2 26 downward in the sliding sleeve 23 and squeezes the button 2 27. The button 2 27 turns on the warning light to remind personnel that the conduit 4 is damaged, so that personnel can perform timely maintenance work on the conduit 4 to avoid affecting the monitoring work of the cavern 1 due to the damage of the conduit 4. ;

[0024] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. 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 the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0025] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An underground artificial chamber monitoring and maintenance system for compressed air energy storage, comprising a chamber (1) and a tunnel (2), wherein a monitoring component is installed on the chamber (1), and the monitoring component comprises a sealing body (3) and a conduit (4), characterized in that: The said cavern (1) includes an inner plate (5) and a casting layer (6). A sealing assembly is installed on the outer side of the casting layer (6). The sealing assembly includes a waterproof layer (8) and a partition board (9). A pressure measuring assembly is installed on the conduit (4). The pressure measuring assembly includes an inner pipe (10) and a sensor (13). A ventilation assembly is arranged on the waterproof layer (8). The ventilation assembly includes aerated concrete (7) and a check valve (11). A pressure relief assembly is installed on the inner pipe (10). The pressure relief assembly includes a pull wire (14) and a pressure relief valve (17). An air supplementing assembly is installed at one end of the conduit (4). The air supplementing assembly includes an air pump (18) and a clamping cover (22). An activity assembly is installed on the inner pipe (10). The activity assembly includes a slider (19) and a button one (21).

2. The monitoring and maintenance system for an underground artificial cavern for compressed air energy storage according to claim 1, wherein: One end of the plugging body (3) is built and formed on one side of the cavern (1), and the other end of the plugging body (3) is built and formed on the other side of the tunnel (2). The casting layer (6) is cast and formed on the outer side of the inner plate (5). The partition board (9) is bonded to the outer side of the casting layer (6). The waterproof layer (8) is bonded to the outer side of the partition board (9). The aerated concrete (7) is cast and formed on the inner side of the waterproof layer (8). The aerated concrete (7) is cast on the outer side of the casting layer (6).

3. The monitoring and maintenance system for an underground artificial cavern for compressed air energy storage according to claim 2, characterized in that: One end of the conduit (4) is installed on the inner side of the tunnel (2). The other end of the conduit (4) sequentially bypasses the outer side of the plugging body (3) and the cavern (1) and extends to the inner side of the tunnel (2). The conduits (4) are evenly distributed on the outer side of the cavern (1). The inner pipe (10) is integrally formed on the inner side of the conduit (4).

4. The monitoring and maintenance system for an underground artificial cavern for compressed air energy storage according to claim 3, wherein: The check valve (11) is installed on the inner side of the waterproof layer (8). A round plate (15) is welded to the outer side of the check valve (11). A snap ring (16) is welded to the outer side of the round plate (15). Both the snap ring (16) and the round plate (15) are stuck on the inner side of the waterproof layer (8).

5. A monitoring and maintenance system for an underground artificial chamber for compressed air energy storage according to claim 1, characterized in that: A through port (12) is integrally formed on the conduit (4) and the inner pipe (10). The inner side of the waterproof layer (8) is in one-way communication with the inner side of the inner pipe (10) through the check valve (11) and the through port (12). Both ends of the pull wire (14) are respectively bonded to the inner wall of the inner pipe (10). The pull wire (14) is distributed on both sides of the through port (12).

6. The monitoring and maintenance system for an underground artificial chamber for compressed air energy storage according to claim 5, characterized in that: The sensor (13) is installed on the inner side of the inner pipe (10). The sensor (13) is located inside the through port (12). The aerated concrete (7) is separated by the partition board (9) into multiple aerated concrete units. The aerated concrete units, the check valve (11), the through port (12) and the sensor (13) correspond one by one. The pressure relief valve (17) is bonded to the inner wall of the inner pipe (10). The inner side of the inner pipe (10) is connected to the outer side of the other end of the inner pipe (10) through the pressure relief valve (17).

7. A monitoring and maintenance system for an underground artificial cavern for compressed air energy storage according to claim 6, characterized in that: The air pump (18) is installed inside the tunnel (2) by bolts. The air pump (18) is connected to the conduit (4) through a connecting pipe. One end of the inner pipe (10) is provided with a chute. The slider (19) is stuck inside the chute. The bottom of the slider (19) is connected to the inner wall of the chute through a first spring (20). The first button (21) is bonded to the bottom of the chute.

8. A monitoring and maintenance system for an underground artificial cavern for compressed air energy storage according to claim 7, characterized in that: The clamping cover (22) is welded to the outer side of the air pump (18). A sliding sleeve (23) is welded to the clamping cover (22). A piston (24) is stuck inside the sliding sleeve (23). The bottom of the piston (24) is connected to the inner wall of the sliding sleeve (23) through a second spring (26). A filter plug (25) is bonded to the inner wall of the bottom of the sliding sleeve (23). A second button (27) is bonded to the top of the filter plug (25).

9. The monitoring and maintenance system for an underground artificial chamber for compressed air energy storage according to claim 8, wherein: Warning lights are installed inside the tunnel (2). The first button (21) is connected to the air pump (18) through an electric wire. The second button (27) and the sensor (13) are both connected to the warning lights through electric wires.

10. The maintenance method of a monitoring and maintenance system for an underground artificial cavern for compressed air energy storage according to claim 1, characterized in that: It includes the following steps: 1). Excavate chambers for the underground rock cavern, tunnel and plugging body, excavate a conduit accommodation chamber on the outer side of the cavern, reserve a cord in the accommodation chamber, install a check valve at the conduit accommodation chamber, and construct the tunnel; 2). Do a waterproof layer for the chamber of the cavern, hermetically bond a partition board on the inner side of the waterproof layer, pour breathable concrete on the inner side of the partition board, construct a pouring layer on the inner sides of the concrete and the partition board, weld and process an inner plate on the inner side of the pouring layer, and then install the plugging body between the cavern and the tunnel; 3). Bind one end of the cord to one end of the conduit, pull the other end of the cord, and pass the conduit from the inner side of the tunnel through the plugging body and the outer side of the cavern and back to the inner side of the tunnel; 4). Fix the air pump inside the tunnel and turn on the air pump. The air pump injects gas between the conduit and the inner pipe. The gas causes the conduit to expand, thereby making the conduit seal the conduit accommodation chamber. There is a gap between the conduit near the vent and the conduit accommodation chamber under the limit of the pull wire; 5). When there is a leak in the cavern, the leaked gas passes through the breathable concrete, enters the inner side of the conduit accommodation chamber through the check valve under the seal of the partition board and the waterproof layer, then enters the vent through the gap between the conduit and the accommodation chamber, and then the pressure rise is monitored by the sensor, and the warning lights are used for alarm work. Personnel repair the corresponding area inside the cavern through the specified warning lights.

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