Goaf substation building and equipment foundation deformation intelligent monitoring system

Abstract

The invention relates to the technical field of settlement monitoring, and particularly discloses a goaf substation building and equipment foundation deformation intelligent monitoring system which comprises a plurality of static level observation sensors, and liquid storage equipment is formed by combining an inner sleeve and a liquid storage cylinder located in the inner sleeve; a supporting mechanism is installed at the bottom end of the inner sleeve, the surface of the inner sleeve is movably sleeved with an outer sleeve, a data demodulator is installed in the position, on one side of the standby power source, of the top box, an inner cavity of the liquid storage cylinder is divided into at least one storage cavity and a plurality of supply cavities through a partition frame, and liquid level adjusting mechanisms are installed between the storage cavities and the supply cavities. Elastic bag sleeves are mounted at the tops of the storage cavity and the supply cavity, and an electric push rod is mounted at the top end of the partition frame. By arranging a series of structures, the monitoring system has the function of supplying liquid to multiple groups of sensors and even multiple buildings through a single liquid storage cylinder, and has the effects of height adjustment, liquid level adjustment, overall disassembly and replacement of the liquid storage cylinder, indirect increase of the liquid storage volume, wide application range and the like.

Description

Technical Field

[0001] The invention relates to the technical field of settlement monitoring, and in particular to an intelligent monitoring system for deformation of buildings and equipment foundations of a substation in a goaf area. Background Art

[0002] Under the disturbance of the construction of the substation in the goaf area and the load of the substation, the original equilibrium state of the foundation of the old goaf area of ​​the substation is broken, and the overlying rock and soil in the goaf interact and settle in coordination, further superimposing the residual settlement deformation of the old goaf area, thereby causing the surface movement and deformation of the goaf area. The surface movement of the goaf area can be divided into two forms: sinking and horizontal movement, and the deformation can be divided into three forms: inclination, curvature and horizontal deformation. For the substation buildings (structures) and equipment in the goaf area, the surface movement and deformation of the goaf area are dynamic in time and space, and the above five types of movement and deformation often occur simultaneously and overlap with each other, thus affecting the safe operation of the substation buildings (structures) and equipment.

[0003] In order to solve the settlement problem of substations in goaf areas, static leveling observation sensors are conventionally used for settlement monitoring, which mainly covers settlement amount, settlement difference and settlement speed, and calculates indicators such as foundation inclination, local inclination, relative bending and component inclination as needed. However, when conventional static leveling observation sensors monitor the same building or equipment, it is necessary to ensure that the original liquid levels are as close to the same level as possible. Therefore, multiple sensors used on a single device are often divided into a group, and a single group uses a liquid storage tank for liquid supply. If there are many buildings or equipment to be monitored, multiple sets of liquid storage tanks need to be configured. While the equipment cost is high, there is often a large height difference between the monitoring points. For example, the deformation monitoring of the transformer station beam structure and the foundation anti-settlement monitoring have a large difference in the height of the monitoring position. If the same batch of liquid storage tanks of the same specification are used, based on the connecting vessel principle of the static leveling observation sensor, when the internal liquid level of the liquid storage tank is insufficient, the installation height of the liquid storage tank must also be considered, which brings great difficulties to the actual installation. Summary of the invention

[0004] The object of the present invention is to provide an intelligent monitoring system for deformation of buildings and equipment foundations of substations in goaf areas, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: an intelligent monitoring system for deformation of buildings and equipment foundations of goaf area substations, comprising a plurality of static leveling observation sensors, a liquid supply pipe commonly connected to the plurality of static leveling observation sensors, and a liquid storage device at the input end of the liquid supply pipe, wherein the liquid storage device is composed of an inner sleeve and a liquid storage cylinder inside the inner sleeve; A supporting mechanism is installed at the bottom end of the inner sleeve, and an outer sleeve is movably sleeved on the surface of the inner sleeve, a mounting groove is provided at the top end of the outer sleeve, a top box is detachably installed at the top end of the outer sleeve outside the mounting groove, a wireless transceiver module is installed at the top end of the top box, a backup power supply is installed inside the top box, a data demodulator is installed inside the top box on one side of the backup power supply, and a storage box is installed inside the top box above the data demodulator; A partition is installed in the middle of the liquid storage cylinder, and the partition divides the inner cavity of the liquid storage cylinder into at least one storage cavity and a plurality of supply cavities. A liquid level adjustment mechanism is installed between the storage cavity and the supply cavity, and elastic bag sleeves are installed on the top of the storage cavity and the supply cavity, and buoyancy plates are installed on the top of the elastic bag sleeves. An electric push rod is installed on the top of the partition, and the top of the electric push rod is detachably installed with the outer sleeve.

[0006] Preferably, a temperature measuring component is installed on the top of the static level observation sensor, and a status light is installed on the top surface of the top box.

[0007] Preferably, a rotating shaft is installed between the top box and the outer sleeve, a flange is installed between the top box and the outer sleeve away from the rotating shaft, a movable sleeve is installed on the surface of the top box between the flange and the status light, the top end of the movable sleeve is connected to the inside of the top box, and the bottom of the movable sleeve is movably connected to a fixed sleeve.

[0008] Preferably, the supporting mechanism includes an I-shaped seat, a hinge, an adjusting screw and a screw nut. Two sets of hinges are symmetrically installed at the edge of the bottom surface of the inner sleeve. The adjusting screw is installed at the bottom end of the hinge. The I-shaped seat is installed below the inner sleeve, and the adjusting screw is installed at the top edge of the I-shaped seat through a screw hole. The I-shaped seat outside the adjusting screw is installed with a screw nut via a bearing.

[0009] Preferably, the liquid level regulating mechanism includes a combined submersible pump, a liquid dispensing tube and a control valve group. The combined submersible pump is installed inside the storage chamber. A control valve group is installed at the port of the combined submersible pump, and several liquid dispensing tubes are installed at the end of the control valve group. The ends of the liquid dispensing tubes extend into the supply chamber.

[0010] Preferably, a limit sleeve is installed on the top of the inner cavity of the outer sleeve outside the electric push rod, and a plurality of liquid level gauges are installed inside the partition frame. The probes of the liquid level gauges pass through the partition frame and extend to the inside of the storage cavity and the supply cavity. A side groove is provided on the surface of the outer sleeve adjacent to the storage cavity, and a supply pipe is movably installed inside the side groove. A liquid supply valve is installed at one end of the supply pipe, and the other end of the supply pipe passes through the buoyancy plate and extends to the inside of the storage cavity.

[0011] Preferably, a reserved opening is provided at the middle position of the bottom of the inner sleeve, and drainage openings are provided at the bottom ends of the storage chamber and the supply chamber. The drainage openings extend outward through the reserved openings through pipelines, and pipe joints are installed at the ends of the drainage openings, which are connected to the supply pipe.

[0012] Preferably, a mounting screw is installed at the top end of the electric push rod, the mounting screw extends to the inside of the mounting groove through the through hole, and a connecting nut is installed on the surface of the mounting screw inside the mounting groove.

[0013] Preferably, a sealing soft sleeve is installed on the bottom end surface of the outer sleeve, and a rain gauge is installed inside the top box away from the other side of the backup power supply, and the top of the rain gauge extends upward out of the top box.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. This intelligent deformation monitoring system for buildings and equipment in goaf substations is suitable for goaf environments. It can realize the liquid supply function of multiple sets of sensors for a single liquid storage device, and achieve the intelligent monitoring effect of deformation of multiple buildings or equipment. The liquid storage device itself has angle adjustment and leveling functions to avoid the subsequent inaccurate liquid level monitoring caused by uneven liquid level inside the liquid storage cylinder. The liquid storage device has a lifting function, which can realize the height change of the internal liquid storage cavity, increase the liquid storage volume and antifreeze level, and is suitable for some installation environments with higher liquid levels. It increases the application scope of the static level observation sensor and even the entire system, and facilitates the overall disassembly, maintenance and even replacement of the liquid storage cylinder, and the monitoring data is fed back to the remote server for use by wireless transmission.

[0015] 2. The intelligent deformation monitoring system for substation buildings and equipment in goaf areas can achieve relative movement of the inner sleeve and the outer sleeve under the action of an electric push rod through the sleeve connection of the outer sleeve, the inner sleeve and the liquid storage cylinder, thereby increasing the volume of the internal liquid storage cavity. After the inner sleeve is opened, the liquid storage cylinder can be taken out separately for inspection or replacement. The entire liquid storage cylinder is divided into multiple cavities, which can be used for multiple groups of static level observation sensors. With the help of the reserve cavity, the internal liquid level of each supply cavity can be adjusted with the help of the internal space of the reserve cavity, and the appropriate antifreeze liquid level height is provided for the installation height of each group of static level observation sensors. Under the action of the elastic bag sleeve and the buoyancy plate, when it is necessary to raise the liquid level of the liquid storage cylinder, there is no need to replace the large-sized liquid storage cylinder. With the help of the upward expansion effect of the elastic bag sleeve, the volume and even the height of the liquid storage cylinder can be directly increased.

[0016] 3. This intelligent deformation monitoring system for substation buildings and equipment in goaf areas is used in conjunction with a movable sleeve and a fixed sleeve for the installation and protection of data lines, etc. When the height changes due to the relative movement of the outer sleeve and the inner sleeve, the movable sleeve moves up and down relative to the fixed sleeve, and under the action of the flange and the rotating shaft, the top box can be directly opened, thereby facilitating operations such as data extraction from the logarithmic storage box, internal equipment maintenance, and electric push rod disassembly.

[0017] 4. The intelligent deformation monitoring system of the substation building and equipment in the goaf area can change the relative position height of the outer sleeve and the inner sleeve by telescopic movement through the electric push rod, which is convenient for adjusting the liquid level. At the same time, the outer sleeve and even the upper parts can be supported, and with the cooperation of the connecting nut and the assembly screw, a limited connection can be made. After disassembly, the electric push rod can be separated from the outer sleeve, which makes it easy to remove the entire liquid storage cylinder from the inner sleeve, which is convenient for operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall use state structure of the present invention; Figure 2 Schematic diagram of the internal structure of the liquid storage tank of the present invention Figure 1 ; Figure 3 Schematic diagram of the internal structure of the liquid storage tank of the present invention Figure 2 ; Figure 4 For the present invention Figure 1 A partial enlarged view of the middle part; Figure 5 For the present invention Figure 3 A partial enlarged view of point B in the middle; Figure 6 For the present invention Figure 3 A partial enlarged view of point C in the middle.

[0019] In the figure: 1. static level observation sensor; 2. temperature measuring assembly; 3. movable sleeve; 4. liquid supply pipe; 5. fixed sleeve; 6. workpiece seat; 7. sealing soft sleeve; 8. outer sleeve; 9. top box; 10. status light; 11. wireless transceiver module; 12. flange; 13. inner sleeve; 14. supply pipe; 15. liquid supply valve; 16. limit sleeve; 17. rain gauge; 18. backup power supply; 19. data demodulator; 20. Assembly groove; 21. Liquid level gauge; 22. Elastic bag sleeve; 23. Reserve chamber; 24. Liquid storage cylinder; 25. Storage box; 26. Electric push rod; 27. Partition; 28. Supply chamber; 29. ​​Reserved port; 30. Pipe joint; 31. Hinge; 32. Adjusting screw; 33. Screw nut; 34. Assembly screw; 35. Connecting nut; 36. Dispensing tube; 37. Combined submersible pump; 38. Control valve group; 39. Buoyancy plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] like Figures 1 to 6As shown, the intelligent monitoring system for deformation of buildings and equipment in goaf substations in this embodiment includes a plurality of static level observation sensors 1, a liquid supply pipe 4 commonly connected to the plurality of static level observation sensors 1, and a liquid storage device at the input end of the liquid supply pipe 4. The static level observation sensor 1 is a prior art, having a fiber grating component, a connecting line, a gas connecting pipe, a buoyancy component, etc., which is suitable for use in an environment with a strong electromagnetic field in a substation and has a strong electromagnetic interference performance. With the help of the connecting vessel principle, a plurality of static level observation sensors 1 can be grouped and marked, and the serial numbers are recorded, such as group 1 a (the first one in the first group) static The level observation sensor 1, a single group is suitable for monitoring the settlement of the same substation building or equipment, and a single group of static level observation sensors 1 needs to maintain a uniform horizontal height as much as possible, and is supplied with liquid by a single liquid supply pipe 4. The liquid storage device is composed of an inner sleeve 13 and a liquid storage cylinder 24 inside the inner sleeve 13. The top of the inner sleeve 13 is open, which is convenient for the liquid storage cylinder 24 to be directly placed from top to bottom; a supporting mechanism is installed at the bottom end of the inner sleeve 13 to adjust the horizontal height and horizontal angle of the entire inner sleeve 13 and even the upper parts thereof, and the surface of the inner sleeve 13 is movably sleeved with an outer sleeve 8, and the outer sleeve 8 is open at the bottom, and an assembly groove 20 is arranged at the top of the outer sleeve 8, which is a concave groove structure. A top box 9 is detachably installed at the top of the outer sleeve 8 outside the assembly groove 20, and the top box 9 opens downward. A wireless transceiver module 11 is installed at the top of the top box 9, which can feed back the processed monitoring information to the remote control system by means of wireless transmission. A backup power supply 18 is installed inside the top box 9, and a battery can be selected. In the event of a power outage of the external power supply of the entire intelligent monitoring system, especially when a major landslide accident occurs and causes a problem with the power supply, the backup power supply 18 can be used to temporarily power the entire system. A data demodulator 19 is installed inside the top box 9 on the side of the power supply 18. When the entire system is in use, there are several groups of static level observation sensors 1, so there are multiple groups of data at the same time. The data demodulator 19 needs to process the multiple groups of data, and then the wireless transceiver module 11 performs remote feedback. A storage box 25 is installed inside the top box 9 above the data demodulator 19. The storage box 25 is a conventional data storage device, which can store the data processed by the data demodulator 19, liquid level monitoring data, sensor data change value and other data on-site, so as to facilitate extraction during subsequent on-site maintenance and constitute local data backup;A partition frame 27 is installed in the middle of the liquid storage cylinder 24, and the partition frame 27 divides the inner cavity of the liquid storage cylinder 24 into at least one storage cavity 23 and a plurality of supply cavities 28. If there is one storage cavity 23 and three supply cavities 28, when the sizes of these four inner cavities are the same, the partition frame 27 is cross-shaped. A liquid level adjustment mechanism is installed between the storage cavity 23 and the supply cavity 28. A single supply cavity 28 is used corresponding to a single set of static level observation sensors 1. Because of the communicating vessel principle, when the height of the monitored building or the installation height of the static level observation sensor 1 are different, the liquid levels of the various supply cavities 28 are different. Elastic bladder sleeves 22 are installed on the tops of the storage cavity 23 and the supply cavity 28. The elastic bladder sleeves 22 can expand under the action of hydraulic pressure. In actual use, when the liquid level inside the storage cavity 23 or the supply cavity 28 reaches After reaching the highest value, the elastic bag sleeve 22 expands, indirectly increasing the volume of the corresponding cavity. The top of the elastic bag sleeve 22 is equipped with a buoyancy plate 39, which is a plate with high hardness and good buoyancy performance. When the entire elastic bag sleeve 22 expands, it can ensure uniform upward expansion and make the upper liquid level horizontal, which is conducive to calculating the liquid level. The top of the partition 27 is equipped with an electric push rod 26, and the top of the electric push rod 26 is detachably installed with the outer sleeve 8. The electric push rod 26 is controlled by the internal controller of the top box 9 and can perform telescopic movement, thereby driving the outer sleeve 8 to move up and down relative to the inner sleeve 13, changing the relative height between the two, ensuring that the elastic bag sleeve 22 will not be hindered when expanding, and then facilitating the change of the liquid level height inside each cavity, increasing the liquid level change range, and making the entire system more applicable. ;

[0023] Specifically, a temperature measuring component 2 is installed on the top of the static level observation sensor 1, and the probe of the temperature measuring component 2 extends into the interior of the static level observation sensor 1, which is conducive to detecting the internal temperature conditions and the influence of the detection temperature on the monitoring conditions of the internal fiber grating. A status light 10 is installed on the top surface of the top box 9, which is actually a multi-color light. For example, a green light is displayed when the entire monitoring system is operating normally. If a static level observation sensor 1 detects abnormal data, a red light alarm can be directly issued.

[0024] Furthermore, a rotating shaft is installed between the top box 9 and the outer sleeve 8, which is similar to a hinge connection. A flange 12 is installed between the top box 9 and the outer sleeve 8 away from the rotating shaft. The flange 12 is different from a conventional flange and is only composed of two upper and lower annular convex parts. The upper and lower parts are connected by bolts and nuts. A movable sleeve 3 is installed on the surface of the top box 9 between the flange 12 and the status light 10. The movable sleeve 3 is an L-shaped structure. The top of the movable sleeve 3 is connected to the inside of the top box 9, and the bottom of the movable sleeve 3 is movably connected to a fixed sleeve 5. The fixed sleeve 5 is movably connected to the bottom of the movable sleeve 3 and can directly contact the ground. In actual use, the interior of the fixed sleeve 5 and the movable sleeve 3 are both hollow, and can perform relative upward and downward telescopic movements under the influence of external forces. The circuits such as the fiber optic grating signal terminal can be protected and uniformly wired through the fixed sleeve 5, and the signals can be directly fed back to the internal controller of the top box 9.

[0025] Furthermore, the supporting mechanism includes a work-shaped seat 6, a hinge 31, an adjusting screw 32 and a screw nut 33. Two sets of hinges 31 are symmetrically installed at the edge of the bottom surface of the inner sleeve 13. The hinge 31 itself can rotate under force. An adjusting screw 32 is installed at the bottom end of the hinge 31. The adjusting screw 32 is relatively long. The work-shaped seat 6 is installed below the inner sleeve 13. The work-shaped seat 6 itself has an I-shaped structure, so that its top and bottom both extend to both sides, and the adjusting screw 32 is installed at the top edge of the work-shaped seat 6 through a screw hole, so that a part of the adjusting screw 32 is threadedly connected to the work-shaped seat 6, and the work-shaped seat 6 outside the adjusting screw 32 is installed with a screw nut 33 through a bearing. 3 itself is subjected to force to make rotational motion, and during the rotation process, because the height of the screw nut 33 itself does not change, the adjusting screw 32 itself will move up and down due to the influence of the threaded connection structure, thereby adjusting the height of the upper hinge 31 and even the inner sleeve 13. Due to the special environment of the goaf, the bottom end of the work-shaped seat 6 is in contact with the ground, which may cause the ground to be uneven and the entire inner sleeve 13 and even all the equipment thereon to tilt. To avoid tilting, the position height of the hinge 31 on one side can be adjusted by screwing the nut 33, thereby changing the support height of one side of the inner sleeve 13 and even the overall tilt angle, thereby achieving the effect of horizontal adjustment of the entire equipment and avoiding the problem of inaccurate liquid level monitoring caused by the tilt of the liquid surface inside the cavity.

[0026] Furthermore, the liquid level regulating mechanism includes a combined submersible pump 37, a liquid distributor 36 and a control valve group 38. The combined submersible pump 37 is installed inside the reserve chamber 23. It is a combined pump body and has forward and reverse functions. It can suck and discharge antifreeze. A control valve group 38 is installed at the port of the combined submersible pump 37. The control valve group 38 actually has at least two solenoid valves combined by pipelines. Multiple solenoid valves have multiple ends for discharging and sucking antifreeze, and several liquid distributors 36 are installed at the end of the control valve group 38. The ends of the liquid distributors 36 extend into the supply chamber 28. When the overall suction or discharge function of the combined submersible pump 37 is turned on, the supply chamber 28 connected to the corresponding liquid distributor 36 can be sucked or discharged with the help of opening and closing a certain end of the control valve group 38. The sucked liquid is directly stored in the reserve chamber 23 for use.

[0027] Furthermore, a limit sleeve 16 is installed at the top of the inner cavity of the outer sleeve 8 outside the electric push rod 26. The surface of the limit sleeve 16 is smooth, which can protect the electric push rod 26 circumferentially and avoid damage caused by direct contact between the electric push rod 26 and the elastic bag sleeve 22 after subsequent expansion. Several liquid level gauges 21 are installed inside the partition frame 27. In order to facilitate the installation of the liquid level gauge 21, it is necessary to ensure that the partition frame 27 has a corresponding cavity inside and conveniently connect the circuit. The probe of the liquid level gauge 21 passes through the partition frame 27 and extends to the inside of the reserve cavity 23 and the supply cavity 28. The liquid level of the supply cavity 28 and the reserve cavity 23 can be detected. In actual detection, it is necessary to ensure that the elastic bag sleeve 22 is fully expanded until the value is stable before reading. A side groove is provided on the surface of the outer sleeve 8 adjacent to the storage chamber 23, and a supply pipe 14 is movably installed inside the side groove. A liquid supply valve 15 is installed at one end of the supply pipe 14, and the other end of the supply pipe 14 passes through the buoyancy plate 39 and extends to the inside of the storage chamber 23. After the liquid supply valve 15 is opened, an external liquid discharge pipe can be inserted, and then when the antifreeze liquid needs to be replenished, the antifreeze liquid is transported to the inside of the storage chamber 23 through the supply pipe 14 to achieve the liquid supply effect. The height of the supply pipe 14 is easily affected by the height of the outer sleeve 8, the height of the buoyancy plate 39 of the storage chamber 23, etc. Therefore, the side groove needs to have a larger vertical height to provide a larger movable space for the supply pipe 14, so that the supply pipe 14 only moves up and down with the buoyancy plate 39 of the storage chamber 23.

[0028] Furthermore, a reserved opening 29 is provided at the middle position of the bottom of the inner sleeve 13, and drainage ports are provided at the bottom ends of the reserve chamber 23 and the supply chamber 28. In order to ensure the structural strength of the bottom of the inner sleeve 13, the reserved opening 29 is relatively small in size, and each drainage port is relatively close to and within the range of the reserved opening 29. The drainage port extends outward through the reserved opening 29 through a pipeline, and a pipe joint 30 is installed at the end of the drainage port. The pipe joint 30 is connected to the liquid supply pipe 4. The pipe joint 30 is provided with a solenoid valve, which can provide coolant to the corresponding liquid supply pipe 4 when opened, and a single pipe joint 30 corresponds to a single supply chamber 28 or a reserve chamber 23 to supply liquid to a single liquid supply pipe 4.

[0029] Furthermore, an assembly screw 34 is installed at the top of the electric push rod 26, and the assembly screw 34 extends to the inside of the assembly groove 20 through the through hole, and a connecting nut 35 is installed on the surface of the assembly screw 34 inside the assembly groove 20, and the size of the connecting nut 35 is larger than the through hole, so that the assembly screw 34 is connected to the assembly groove 20 and even the outer sleeve 8 with the help of the connecting nut 35, and the bottom of the electric push rod 26 is fixedly connected to the partition frame 27. When the outer sleeve 8 needs to be opened, the connecting nut 35 needs to be removed to facilitate manual inspection of the inside of the inner sleeve 13 or direct removal of the liquid storage cylinder 24.

[0030] Furthermore, a sealing soft sleeve 7 is installed on the bottom surface of the outer sleeve 8, which is made of rubber material with good elasticity and has good stress deformation performance. After the height adjustment of the outer sleeve 8 moving up and down is completed, the sealing soft sleeve 7 can be filled in the gap between the outer sleeve 8 and the inner sleeve 13 to achieve a certain sealing effect. A rain gauge 17 is installed inside the top box 9 on the other side away from the backup power supply 18, and the top of the rain gauge 17 extends upward out of the top box 9. The rain gauge 17 can use a conventional self-metering rain gauge to collect rain data on the surrounding environment and feed the data back to the internal controller of the top box 9 for processing, which is conducive to providing a data source for subsequent research on the impact of rain on the goaf.

[0031] The method of using this embodiment is as follows: before installing the entire monitoring system, it is necessary to determine the horizontal position and height of the monitoring points of multiple buildings, determine the installation position of the workbench 6 and even the liquid storage equipment thereon, install the required number of static level observation sensors 1, group and number each static level observation sensor 1, uniformly collect the numbers and enter them into the processor of the top box 9, and process them by the data demodulator 19, connect and lay cables or pipelines, connect each group of static level observation sensors 1 to a liquid supply pipe 4, and connect the liquid supply pipe 4 to the pipe joint 30 under a specific supply cavity 28, and mark the supply cavity 28 with numbers. The installation heights of each group of static level observation sensors 1 are different, and the liquid level of the liquid supply cavity 28 will also be determined differently. When the required liquid level is found to be higher than When the liquid level of any cavity in the liquid storage cylinder 24 reaches the highest level, it is necessary to start the electric push rod 26. The electric push rod 26 extends and drives the outer sleeve 8 to move upward, so that the distance between the top of the inner cavity of the outer sleeve 8 and the top of the liquid storage cylinder 24 continues to increase. If only one supply chamber 28 needs to raise the liquid level, the combined submersible pump 37 is turned on to directly supply the antifreeze in the reserve chamber 23 to the corresponding supply chamber 28. When the antifreeze contacts the buoyancy plate 39, the elastic bag sleeve 22 above the supply chamber 28 expands upward due to the buoyancy of the buoyancy plate 39, thereby directly increasing the maximum liquid level of the entire supply chamber 28, so as to provide the required liquid level for the high-mounted static level observation sensor 1. When the antifreeze inside the entire liquid storage cylinder 24 is insufficient, the liquid supply valve 15 is opened to perform the liquid supply operation.

[0032] In actual use, the entire static level observation sensor 1 monitors the deformation or settlement of each monitoring point, and the electrical signal generated by the fiber grating is fed back to the processor inside the top box 9 for data processing, and after secondary processing with the help of the data demodulator 19, it is transmitted with the help of the wireless transceiver module 11 by wireless transmission, and can be transmitted to the computer control end on site, and the computer control end feeds back the data to the remote cloud platform data management center with the help of a gateway or wireless transmission, and processes it with the help of a data server and an application server. When the liquid storage cylinder 24 needs to be replaced or repaired later, the flange 12 must be opened first, and then the top box 9 must be opened, and the connecting nut 35 must be unscrewed to remove the assembly screw 34 from the outer sleeve 8, so that the electric push rod 26 is separated from the outer sleeve 8, and the connection between the electric push rod 26, the liquid level meter 21, the combined submersible pump 37, etc. and the internal circuit of the top box 9 is disassembled, such as the snap-on circuit connection form, and then the outer sleeve 8 is lifted, and the electric push rod 26 is taken out with the liquid storage cylinder 24.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An intelligent monitoring system for deformation of buildings and equipment foundations of a substation in a goaf area, comprising a plurality of static level observation sensors (1), a liquid supply pipe (4) connected to the plurality of static level observation sensors (1), and a liquid storage device at the input end of the liquid supply pipe (4), characterized in that: The liquid storage device is composed of an inner sleeve (13) and a liquid storage cylinder (24) located inside the inner sleeve (13); A supporting mechanism is installed at the bottom end of the inner sleeve (13), and an outer sleeve (8) is movably sleeved on the surface of the inner sleeve (13), a mounting groove (20) is provided at the top end of the outer sleeve (8), a top box (9) is detachably installed at the top end of the outer sleeve (8) outside the mounting groove (20), a wireless transceiver module (11) is installed at the top end of the top box (9), a backup power supply (18) is installed inside the top box (9), a data demodulator (19) is installed inside the top box (9) on one side of the backup power supply (18), and a storage box (25) is installed inside the top box (9) above the data demodulator (19); A partition frame (27) is installed in the middle of the liquid storage cylinder (24), and the partition frame (27) divides the inner cavity of the liquid storage cylinder (24) into at least one storage cavity (23) and a plurality of supply cavities (28). A liquid level adjustment mechanism is installed between the storage cavity (23) and the supply cavity (28). The tops of the storage cavity (23) and the supply cavity (28) are both installed with elastic sac sleeves (22), and the tops of the elastic sac sleeves (22) are both installed with buoyancy plates (39). The top of the partition frame (27) is installed with an electric push rod (26), and the top of the electric push rod (26) is detachably installed with the outer sleeve (8).

2. The intelligent monitoring system for deformation of substation buildings and equipment in goaf areas according to claim 1 is characterized by: A temperature measuring component (2) is installed on the top of the static level observation sensor (1), and a status light (10) is installed on the top surface of the top box (9).

3. The intelligent monitoring system for deformation of substation buildings and equipment in goaf areas according to claim 2 is characterized by: A rotating shaft is installed between the top box (9) and the outer sleeve (8), a flange (12) is installed between the top box (9) and the outer sleeve (8) away from the rotating shaft, a movable sleeve (3) is installed on the surface of the top box (9) between the flange (12) and the status light (10), the top end of the movable sleeve (3) is connected to the inside of the top box (9), and the bottom of the movable sleeve (3) is movably connected to the fixed sleeve (5).

4. The intelligent monitoring system for deformation of substation buildings and equipment in goaf areas according to claim 1 is characterized by: The support mechanism comprises a work-shaped seat (6), a hinge (31), an adjusting screw (32) and a screw nut (33); two sets of hinges (31) are symmetrically mounted on the edge of the bottom surface of the inner sleeve (13); the adjusting screw (32) is mounted on the bottom end of the hinge (31); the work-shaped seat (6) is mounted below the inner sleeve (13); the adjusting screw (32) is installed at the top edge of the work-shaped seat (6) through a screw hole; and the work-shaped seat (6) outside the adjusting screw (32) is mounted with a screw nut (33) through a bearing.

5. The intelligent monitoring system for deformation of substation buildings and equipment in goaf areas according to claim 1 is characterized by: The liquid level regulating mechanism comprises a combined submersible pump (37), a liquid dispensing tube (36) and a control valve group (38); the combined submersible pump (37) is installed inside the storage chamber (23); a control valve group (38) is installed at a port of the combined submersible pump (37); and a plurality of liquid dispensing tubes (36) are installed at the end of the control valve group (38); the ends of the liquid dispensing tubes (36) extend into the interior of the supply chamber (28).

6. The intelligent monitoring system for deformation of buildings and equipment in goaf substations according to claim 1 is characterized by: A limit sleeve (16) is installed at the top end of the inner cavity of the outer sleeve (8) outside the electric push rod (26), and a plurality of liquid level gauges (21) are installed inside the partition frame (27). The probes of the liquid level gauges (21) penetrate the partition frame (27) and extend to the inside of the storage cavity (23) and the supply cavity (28). A side groove is provided on the surface of the outer sleeve (8) adjacent to the storage cavity (23), and a supply pipe (14) is movably installed inside the side groove. A liquid supply valve (15) is installed at one end of the supply pipe (14), and the other end of the supply pipe (14) penetrates the buoyancy plate (39) and extends to the inside of the storage cavity (23).

7. The intelligent monitoring system for deformation of buildings and equipment in goaf area substations according to claim 1 is characterized by: A reserved opening (29) is provided at the middle position of the bottom of the inner sleeve (13), and drainage openings are provided at the bottom ends of the storage chamber (23) and the supply chamber (28). The drainage openings extend outward through the reserved opening (29) via a pipeline, and pipe joints (30) are installed at the ends of the drainage openings. The pipe joints (30) are connected to the liquid supply pipe (4).

8. The intelligent monitoring system for deformation of buildings and equipment in goaf area substations according to claim 1 is characterized by: A mounting screw (34) is installed at the top end of the electric push rod (26), the mounting screw (34) extends through the through hole to the inside of the mounting groove (20), and a connecting nut (35) is installed on the surface of the mounting screw (34) inside the mounting groove (20).

9. The intelligent monitoring system for deformation of substation buildings and equipment in goaf areas according to claim 1 is characterized by: A sealing soft sleeve (7) is installed on the bottom surface of the outer sleeve (8), and a rain gauge (17) is installed inside the top box (9) on the other side away from the backup power supply (18), with the top of the rain gauge (17) extending upward out of the top box (9).

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