Underground water level monitoring device for terrestrial heat

Abstract

The utility model relates to the technical field of terrestrial heat water level monitoring, and discloses a terrestrial heat underground water level monitoring device which comprises a well mouth supporting table, bottom supporting rods are evenly arranged on the periphery of the bottom end of the well mouth supporting table, and a cable winding and unwinding assembly is arranged at the top end of the well mouth supporting table. A water level monitor is arranged at the bottom of the well mouth supporting table, the cable winding and unwinding assembly and the lowering limiting assembly are arranged on the well mouth supporting table, and a rotary connecting rod in the cable winding and unwinding assembly can be driven by a driving motor to wind and unwind a cable rope wound on the rotary connecting rod; according to the water level monitor, the two mooring ropes are arranged to prevent mutual winding between the two mooring ropes, so that the water level monitor is more stable in the lowering process, rotation of the water level monitor in the lowering process can be greatly reduced, the water level monitor can be stably lowered into underground water at the bottom in a geothermal well, and monitoring use of the water level monitor is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of geothermal water level monitoring technology, specifically a groundwater level monitoring device for geothermal applications. Background Technology

[0002] Groundwater level is the most direct data reflecting the state of groundwater. It is a crucial data point in groundwater level monitoring, groundwater resource assessment and calculation. There are various ways to monitor groundwater level, among which the two most commonly used methods are: one is to put an immersion sensor into a groundwater monitoring well for monitoring, and the other is to use a laser rangefinder to measure changes in groundwater level.

[0003] A search revealed a Chinese patent publication number (CN 215448094 U) disclosing a groundwater level monitoring device for geothermal applications. This device includes a support mechanism, a lateral movement mechanism, a release mechanism, and a water level monitor. The lateral movement mechanism's lead screw passes through the horizontal frame of the support mechanism and engages with it. The release mechanism is located on the upper side of the horizontal frame and connected to a suspension column. The water level monitor is located at the lower part of the horizontal frame and connected to a connecting cable of the release mechanism. The connecting cable passes through a well ring in the lateral movement mechanism. The horizontal frame is located at the top of the geothermal well, and the well ring is located inside the well. The lateral movement mechanism drives the well ring to extend to both sides and engage with grooves in the inner wall of the geothermal well. The release mechanism then releases the water level monitor, which descends into the geothermal well. This invention overcomes the problems of traditional geothermal well data monitoring equipment, such as data loss due to shaking during water level monitoring and damage from contact with the well wall. It features a simple structure, good stability during release, reduced shaking during descent, reduced risk of damage, improved accuracy of monitoring data, and simple and convenient operation.

[0004] The groundwater level monitoring device in the aforementioned patent still has certain shortcomings. During the process of lowering the existing geothermal well water level monitoring instrument into the well, due to the depth of the well, the lowering cable connected to the water level monitoring instrument is easily tangled during the continuous lowering process, which affects the pulling up or lowering of the monitoring instrument, causing damage to the monitoring instrument during use and affecting the specific monitoring data collection. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a groundwater level monitoring device for geothermal applications. It solves the problem that during the lowering of existing geothermal well water level monitoring instruments, due to the depth of the well, the lowering cable connected to the water level monitoring instrument is easily entangled, which affects the pulling up or lowering of the monitoring instrument, leading to damage during use and affecting the acquisition of specific monitoring data.

[0006] This utility model provides the following technical solution: a groundwater level monitoring device for geothermal applications, including a wellhead support platform, bottom support rods evenly arranged around the bottom of the wellhead support platform, a cable winding and unwinding assembly arranged at the top of the wellhead support platform, a bottom placement chamber arranged at the bottom of the wellhead support platform, a plurality of lowering limiting assemblies arranged in the bottom placement chamber, a water level monitor arranged at the bottom of the wellhead support platform, and two connecting rings symmetrically arranged on both sides of the top of the water level monitor;

[0007] The cable delivery and take-up assembly includes a cable storage compartment located at the top of the wellhead support platform. A central partition is provided in the middle of the cable storage compartment. A rotating connecting rod is rotatably inserted into the cable storage compartment. The end of the rotating connecting rod rotatably passes through the side of the cable storage compartment. A drive motor is provided on the outside of the cable storage compartment. The drive end of the drive motor is fixedly connected to the rotating connecting rod. Two symmetrical lowering grooves are provided on the side of the wellhead support platform. A support connecting rod is provided on the side of the lowering groove. A limit connecting frame is provided at the top of the support connecting rod. A pulley is rotatably installed inside the limit connecting frame.

[0008] Preferred technical solution 1: The lowering limiting component includes a limiting support rod disposed in the bottom placement compartment. Two cable insertion holes are symmetrically opened at both ends of the limiting support rod, and two fixing screw holes are symmetrically opened at both ends of the limiting support rod. A fixing screw is threaded into the fixing screw hole.

[0009] Preferred technical solution 2: The end of the fixing screw is provided with an abutment ball, and the abutment ball is rotatably connected to the fixing screw through a provided rotating connecting block, and a cable receiving groove is provided on the side of the cable socket.

[0010] Preferred technical solution 3: The side of the bottom placement compartment is open, and the end of the bottom placement compartment is rotatably provided with a closing plate.

[0011] This solution enables more stable preservation of the lower limit component placed in the bottom placement compartment.

[0012] Preferred technical solution four: The side of the top of the lowering groove is arc-shaped.

[0013] This solution reduces friction when the cable passing through the cable socket comes into contact with the lower groove.

[0014] Preferred technical solution five: The end of the fixing screw is provided with a connecting block that facilitates rotation.

[0015] This solution makes it easier for users to rotate the fixing screw.

[0016] Compared with the prior art, this utility model provides a groundwater level monitoring device for geothermal applications, which has the following beneficial effects:

[0017] (1) This utility model is provided with a cable winding and unwinding assembly and a lowering limiting assembly on the wellhead support platform. The rotating connecting rod in the cable winding and unwinding assembly can wind and unwind the cable rope wound on the rotating connecting rod under the drive of the drive motor. The bottom end of the cable rope passes through the cable insertion holes at both ends of the limiting support rod. At regular intervals, the lowering limiting assembly needs to be installed on the cable rope. The limiting support rod in the lowering limiting assembly tightens and separates the two cable ropes to prevent them from getting tangled. Since the two cables are used to bind the top two sides of the water level monitor, the water level monitor is more stable during the lowering process, which can greatly reduce the rotation of the water level monitor during the lowering process. This allows the water level monitor to be smoothly lowered into the groundwater at the bottom of the geothermal well, so as to facilitate the monitoring and use of the water level monitor. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 For the present utility model Figure 1 Enlarged view of the structure of the lower groove;

[0020] Figure 3 For the present utility model Figure 1 Enlarged view of the lower limit component;

[0021] Figure 4 This is a schematic diagram of the structure of this utility model.

[0022] In the diagram: 1. Wellhead support platform; 2. Bottom support rod; 3. Cable winding and unwinding assembly; 4. Bottom placement compartment; 5. Lowering limit assembly; 6. Water level monitor; 7. Connecting ring;

[0023] 301. Cable storage compartment; 302. Central partition; 303. Rotating connecting rod; 304. Drive motor; 305. Lowering groove; 306. Support connecting rod; 307. Limiting connecting frame; 308. Pulley;

[0024] 501. Limiting support rod; 502. Cable socket; 503. Fixing screw hole; 504. Fixing screw; 505. Contact ball; 506. Rotating connecting block; 507. Cable take-up groove. Detailed Implementation

[0025] Please see Figure 1-4 ,

[0026] Example 1: A groundwater level monitoring device for geothermal applications includes a wellhead support platform 1, bottom support rods 2 evenly arranged around the bottom of the wellhead support platform 1, a cable winding and unwinding assembly 3 arranged at the top of the wellhead support platform 1, a bottom placement chamber 4 arranged at the bottom of the wellhead support platform 1, a plurality of lowering limiting assemblies 5 arranged inside the bottom placement chamber 4, a water level monitor 6 arranged at the bottom of the wellhead support platform 1, and two connecting rings 7 symmetrically arranged on both sides of the top of the water level monitor 6.

[0027] The cable retraction assembly 3 includes a cable storage compartment 301 set at the top of the wellhead support platform 1. A central partition 302 is provided in the middle of the cable storage compartment 301. A rotating connecting rod 303 is rotatably inserted into the cable storage compartment 301. The end of the rotating connecting rod 303 rotatably passes through the side of the cable storage compartment 301. A drive motor 304 is provided on the outside of the cable storage compartment 301. The drive end of the drive motor 304 is fixedly connected to the rotating connecting rod 303. Two lowering grooves 305 are symmetrically opened on the side of the wellhead support platform 1. A support connecting rod 306 is provided on the side of the lowering groove 305. A limit connecting frame 307 is provided at the top of the support connecting rod 306. A pulley 308 is rotatably arranged inside the limit connecting frame 307.

[0028] The lowering limiting component 5 includes a limiting support rod 501 set in the bottom placement compartment 4. Two cable insertion holes 502 are symmetrically opened at both ends of the limiting support rod 501. Two fixing screw holes 503 are symmetrically opened at both ends of the limiting support rod 501. A fixing screw 504 is threaded into the fixing screw hole 503. A contact ball 505 is provided at the end of the fixing screw 504. The contact ball 505 and the fixing screw 504 are rotatably connected by a rotating connecting block 506. A cable take-up groove 507 is opened on the side of the cable insertion hole 502.

[0029] Example 2: The difference between this example and Example 1 is that the side of the bottom placement compartment 4 is open, and the end of the bottom placement compartment 4 is rotatably equipped with a closing plate.

[0030] This makes the lower limit component 5, which is placed in the bottom placement compartment 4, more stable.

[0031] Example 3: The difference between this example and Example 1 is that the side of the top of the lower groove 305 is arc-shaped.

[0032] This reduces friction when the cable passing through the cable socket 502 comes into contact with the lower recess 305.

[0033] Example 4: The difference between this example and Example 1 is that the end of the fixing screw 504 is provided with a connecting block that facilitates rotation.

[0034] This makes it easier for users to rotate the fixing screw 504.

[0035] In this embodiment, due to the depth of the well, the existing geothermal well water level monitoring instrument is prone to tangling during the continuous descent of the cable connecting the water level monitoring instrument. This affects the pulling up or lowering of the monitoring instrument, causing damage to the monitoring instrument during use and affecting the acquisition of specific monitoring data.

[0036] In summary, in specific implementation, when the user needs to lower the water level monitor 6 into the geothermal well for groundwater level monitoring, the user first needs to wrap the cable connected to the water level monitor 6 around both ends of the rotating connecting rod 303. The other end of the cable passes through the limiting connecting frame 307 and is attached to the pulley 308. The end of the cable also needs to pass through the cable insertion holes 502 on both sides of the limiting support rod 501 in the lowering limiting component 5. Then, by inserting the fixing screw 504 into the fixing screw hole 503, the fixing screw 504 can push the abutment ball 505 to abut and fix the cable passing through the cable insertion hole 502.

[0037] Furthermore, at regular intervals, the user needs to install lowering limit components 5 on the two cables to ensure that the two cables are kept taut and spaced apart, preventing them from tangling. At the same time, the connecting lines of the cables and the water level monitor 6 can be passed through the cable sockets 502 to provide support for the lowering and pulling of the water level monitor 6. Since the two cables are used to bind the top of the water level monitor 6 to both sides, the water level monitor 6 is more stable during the descent, which can greatly reduce the rotation of the water level monitor 6 during the descent, allowing the water level monitor 6 to be smoothly lowered into the groundwater at the bottom of the geothermal well, so as to facilitate the monitoring and use of the water level monitor 6.

[0038] When reeling in the cable, the cable can be pulled out through the cable tray 507 without being touched by the contact ball 505, making the device more convenient to use.

Claims

1. A groundwater level monitoring device for geothermal applications, comprising a wellhead support platform (1), characterized in that: Bottom support rods (2) are evenly arranged around the bottom of the wellhead support platform (1). A cable winding and unwinding assembly (3) is arranged at the top of the wellhead support platform (1). A bottom placement chamber (4) is arranged at the bottom of the wellhead support platform (1). Several lowering limit assemblies (5) are arranged inside the bottom placement chamber (4). A water level monitor (6) is arranged at the bottom of the wellhead support platform (1). Two connecting rings (7) are symmetrically arranged on both sides of the top of the water level monitor (6). The cable delivery assembly (3) includes a cable storage compartment (301) located at the top of the wellhead support platform (1). A central partition (302) is provided in the middle of the cable storage compartment (301). A rotating connecting rod (303) is rotatably inserted into the cable storage compartment (301). The end of the rotating connecting rod (303) rotatably passes through the side of the cable storage compartment (301). A drive motor (304) is provided on the outside of the cable storage compartment (301). The drive end of the drive motor (304) is fixedly connected to the rotating connecting rod (303). Two lowering grooves (305) are symmetrically opened on the side of the wellhead support platform (1). A support connecting rod (306) is provided on the side of the lowering groove (305). A limiting connecting frame (307) is provided at the top of the support connecting rod (306). A pulley (308) is rotatably arranged inside the limiting connecting frame (307).

2. The groundwater level monitoring device for geothermal applications according to claim 1, characterized in that: The lowering limiting component (5) includes a limiting support rod (501) disposed in the bottom placement compartment (4). Two cable insertion holes (502) are symmetrically opened at both ends of the limiting support rod (501). Two fixing screw holes (503) are symmetrically opened at both ends of the limiting support rod (501). A fixing screw (504) is threaded into the fixing screw hole (503).

3. The groundwater level monitoring device for geothermal applications according to claim 2, characterized in that: The end of the fixing screw (504) is provided with an abutment ball (505), and the abutment ball (505) is rotatably connected to the fixing screw (504) through a rotating connecting block (506). The side of the cable socket (502) is provided with a cable take-up groove (507).

4. The groundwater level monitoring device for geothermal applications according to claim 3, characterized in that: The bottom placement compartment (4) has an open side, and a closing plate is rotatably provided at the end of the bottom placement compartment (4).

5. A groundwater level monitoring device for geothermal applications according to claim 4, characterized in that: The side of the top of the lower groove (305) is arc-shaped.

6. A groundwater level monitoring device for geothermal applications according to claim 5, characterized in that: The end of the fixing screw (504) is provided with a connecting block that facilitates rotation.

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