A multi-parameter real-time monitoring device for a landfill

Abstract

The utility model discloses a kind of landfill multi-parameter real-time monitoring devices, it is related to environmental engineering technical field, including acquisition instrument, detection board, anti-drop pin, the acquisition instrument is connected with tension displacement meter and pressure gauge, the acquisition instrument is connected with monitoring host computer by wireless transmission module, the detection board has two hole seats, fixed cone is inserted in the hole seat, the detection board is connected with the measuring head of tension displacement meter, C-shaped strip is rotatably installed in the end of anti-drop pin, the other end of C-shaped strip is sleeved on anti-drop pin, anti-drop pin passes through measuring head;Acquisition instrument packs monitoring data and sends to monitoring host computer by wireless transmission module, data can be remotely viewed, when data exceeds preset value, audible and visual alarm issues alarm, can remind staff to check garbage pile body condition, ensure the stable stacking of garbage pile body.

Description

Technical Field

[0001] This utility model relates to the field of environmental engineering technology, specifically to a real-time monitoring device for multiple parameters of a landfill. Background Technology

[0002] Sanitary landfills are widely used in China due to their low cost and wide applicability. However, during landfill operation and management, changes in internal pressure caused by landfill gas and leachate produced during waste fermentation, coupled with the uneven composition of waste, can lead to landfill collapse. Therefore, monitoring of the waste landfill is necessary.

[0003] In existing technologies, wire displacement gauges are commonly used for displacement monitoring of landfill structures. For example, one wire displacement gauge (publication number CN220729207U) uses a nut screwed onto the wire end, with the detection plate fitted onto the wire end and secured by the nut, thus installing the detection plate. The detection plate is then positioned at the measured location to achieve monitoring at the designated position. Another wire displacement gauge (publication number CN221198309U) has a connecting end connected to the end of the wire, with an internal thread formed on the inner wall of the end of the wire end near the connecting end, which can be used to connect and fix the instrument. A quick calibration frame for wire displacement gauges (publication number CN102435159A) calibrates the wire displacement gauge by first placing it between a stop and a screw hole, then rotating the screw to press the tail of the displacement gauge, thus fixing it, and finally connecting the displacement gauge power supply and measurement data.

[0004] In the existing technology, the wire displacement gauge fixes the wire using a threaded connection. When monitoring waste piles, the first solution is prone to nut loosening, while the second and third solutions both use internal threads to connect the instrument. However, waste piles contain various impurities, and impurities in the thread grooves increase the resistance to tightening the nut. Cleaning impurities that have entered the threads is also inconvenient, resulting in a lack of convenience in use. Moreover, this method can only provide a "post-event alarm" for waste pile collapse after displacement has occurred, which is not conducive to timely emergency response on site. Utility Model Content

[0005] The purpose of this invention is to provide a multi-parameter real-time monitoring device for landfills to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a real-time multi-parameter monitoring device for landfills, including a data acquisition instrument, which is connected to a wire displacement meter and a pressure gauge. The data acquisition instrument is connected to a monitoring host via a wireless transmission module. The data acquisition instrument packages the data and sends it through the wireless transmission module for easy remote viewing.

[0007] The detection plate has two holes, in which a fixing cone is inserted. The detection plate is connected to the measuring head of the wire displacement meter. The fixing cone makes it easy to fix the detection plate in a designated position.

[0008] An anti-detachment pin is provided, with a C-shaped strip rotatably mounted at one end. The other end of the C-shaped strip is fitted onto the anti-detachment pin, which passes through the measuring head. The anti-detachment pin enables a detachable connection between the detection plate and the measuring head, thereby improving the stability of the detection plate installation.

[0009] Furthermore, the data acquisition device is connected to a hygrometer and an ultrasonic level gauge. Multiple hygrometers are installed at different depths and positions in the waste pile to monitor changes in humidity. In case of rain or seepage, the ultrasonic level gauge can be used to detect the liquid level. The ultrasonic level gauge is placed at the opening of the vertical shaft for monitoring the waste pile.

[0010] Furthermore, the data acquisition device is electrically connected to a battery and a photovoltaic panel. Battery power eliminates the need for wiring, and the photovoltaic panel can power the battery, improving battery life.

[0011] Furthermore, the anti-detachment pin surface is provided with an interface, and the C-shaped strip has a plug corresponding to the interface, ensuring that the anti-detachment pin can be fixed more stably, improving the stability of the connection between the measuring head and the detection plate. The C-shaped strip is elastic, so that the C-shaped strip and the anti-detachment pin can be detached and connected, making it easier to separate the measuring head and the detection plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) Loosen the C-shaped strip from one end of the anti-detachment pin, put the detection plate on the measuring head, and after the anti-detachment pin passes through the measuring head, put the C-shaped strip back on one end of the anti-detachment pin to achieve a stable connection between the detection plate and the measuring head, which is convenient to operate.

[0014] (2) The wire displacement meter monitors the displacement of the garbage pile, the ultrasonic level gauge monitors the changes in the leachate level, the hygrometer monitors the humidity of the garbage pile, and the pressure gauge monitors the changes in the pressure inside the garbage pile. The stress on the garbage pile is assessed so that potential problems can be detected in time and corresponding measures can be taken. It also has the function of predicting the collapse of the garbage pile.

[0015] (3) The data acquisition device packages the monitoring data and sends it to the monitoring host through the wireless transmission module. The data can be viewed remotely. When the data exceeds the preset value, the sound and light alarm will sound an alarm, which can remind the staff to check the condition of the garbage pile. It can provide early warning before the garbage pile collapses, ensuring the stable stacking of the garbage pile. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the composition structure of this utility model;

[0017] Figure 2 This is a schematic diagram showing the connection between the measuring head and the detection plate of this utility model;

[0018] Figure 3 This is a schematic diagram of the connection between the interface and the plug of this utility model;

[0019] Figure 4 This is a schematic diagram of the connection between the hole seat and the fixed cone of this utility model;

[0020] Figure 5 This is a schematic diagram of the plug of this utility model.

[0021] In the diagram: 1. Data acquisition unit; 2. Battery; 3. Photovoltaic panel; 4. Wireless transmission module; 5. Monitoring host; 6. Audible and visual alarm; 7. Wire displacement meter; 8. Ultrasonic level gauge; 9. Hygrometer; 10. Pressure gauge; 11. Measuring head; 12. Detection plate; 13. Hole seat; 14. Fixing cone; 15. C-shaped strip; 16. Anti-detachment pin; 17. Plug interface; 18. Plug; 19. Limit cap. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example:

[0024] Please see Figure 1-5 This utility model provides a technical solution: a real-time monitoring device for multiple parameters of a landfill, including a data acquisition instrument 1. The data acquisition instrument 1 is connected to a wire displacement meter 7 and a pressure gauge 10. The pressure gauge 10 is placed inside the landfill. When the internal pressure of the landfill changes, the pressure gauge 10 can monitor it in a timely manner.

[0025] The data acquisition device 1 is connected to the monitoring host 5 through the wireless transmission module 4. The wireless transmission module 4 transmits data to the monitoring host 5 in real time through wireless communication technologies such as 4G / 5G and NB-IoT, so as to realize remote viewing of the data of the garbage pile.

[0026] The detection plate 12 has two holes 13, in which a fixed cone 14 is inserted. The detection plate 12 is connected to the measuring head 11 of the wire displacement meter 7. The fixed cone 14 is connected to a sliding position on the garbage pile. When the garbage pile slides, it drives the measuring head 11 to move. The measuring head 11 pulls the steel wire of the wire displacement meter 7. The steel wire is wound around the hub of the wire displacement meter 7. This hub is connected to a precision rotation sensor. The sensor can be an incremental encoder, an absolute (independent) encoder, a hybrid or conductive plastic rotary potentiometer, a synchronizer, or a resolver. When the steel wire is pulled by the measuring head 11, the hub rotates. The hub drives the precision rotation sensor to rotate and outputs an electrical signal proportional to the distance the wire moves. The displacement of the garbage pile can be obtained by measuring the output signal.

[0027] When the waste pile slides and causes the fixed cone 14 to separate from the waste pile, the steel wire is also detected by the wire displacement meter 7 when it is retracted, thus stabilizing the effect of detecting the slippage of the waste pile.

[0028] The anti-detachment pin 16 has a C-shaped strip 15 rotatably mounted on its end. The other end of the C-shaped strip 15 is fitted onto the anti-detachment pin 16. The anti-detachment pin 16 passes through the measuring head 11. The C-shaped strip 15 can prevent the anti-detachment pin 16 from falling off the measuring head 11, thereby ensuring that the detection plate 12 will not separate from the measuring head 11.

[0029] In this embodiment, as Figure 1 As shown, the data acquisition instrument 1 is connected to a hygrometer 9 and an ultrasonic level gauge 8. The ultrasonic level gauge 8 uses the ultrasonic pulse principle for non-contact measurement. The high-frequency vibration of the ultrasonic instrument has a certain self-cleaning ability, making it easier to maintain.

[0030] For a garbage pile that has been buried underground, a vertical shaft of more than 6 meters is dug on the garbage pile. An ultrasonic level gauge 8 is vertically installed above the shaft opening. The ultrasonic level gauge 8 emits an ultrasonic pulse into the shaft. After a period of time, the sensor of the ultrasonic level gauge 8 receives the signal reflected back from the liquid surface. The signal is selected and processed by the transmitter circuit. Based on the time difference between the ultrasonic level gauge 8 emitting and receiving the ultrasonic wave, the distance from the liquid surface to the ultrasonic level gauge 8 is calculated. The data acquisition instrument 1 records the measured distance.

[0031] Hygrometer 9 measures the humidity of the garbage pile. The measuring pen of hygrometer 9 is inserted directly into the garbage pile, so that the measuring pen is fully inserted into the garbage pile and makes close contact with the surrounding garbage pile. For more accurate measurement values, multiple hygrometers 9 can be set up.

[0032] In this embodiment, as Figure 1 As shown, the data acquisition device 1 is electrically connected to a battery 2 and a photovoltaic panel 3, which provides the data acquisition device 1 with a longer battery life.

[0033] In this embodiment, as Figure 1 As shown, the monitoring host 5 is electrically connected to an audible and visual alarm 6. The monitoring host 5 can preset values ​​for the displacement distance of the garbage pile, the humidity of the garbage pile, the liquid level, and the internal pressure of the garbage pile. When the detected data exceeds the preset values, the audible and visual alarm 6 will sound an alarm to remind staff to check the garbage pile in a timely manner.

[0034] In this embodiment, as Figure 3 As shown, the anti-detachment pin 16 has a plug interface 17 on its surface, and the C-shaped strip 15 has a plug 18 corresponding to the plug interface 17. The lower end of the C-shaped strip 15 has an opening larger than the diameter of the anti-detachment pin 16, so that the C-shaped strip 15 has a certain amount of room to move, which can ensure that the plug 18 is connected and separated from the plug interface 17. The plug 18 is inserted into the plug interface 17 to prevent the C-shaped strip 15 from separating from the anti-detachment pin 16.

[0035] In this embodiment, as Figure 3 As shown, the upper end of the anti-detachment pin 16 is provided with a limiting cap 19, and the C-shaped strip 15 passes through the limiting cap 19 to realize the rotational connection between the C-shaped strip 15 and the anti-detachment pin 16.

[0036] In this embodiment, as Figure 3 As shown, the C-shaped strip 15 is elastic so that the C-shaped strip 15 can be detachably connected to the anti-detachment pin 16. The C-shaped strip 15 is made of steel strip, which passes through the limiting cap 19 and is then folded in half, and then the steel strip is bent into a C shape.

[0037] Specifically, during use, the pressure gauge 10 is buried in the garbage pile, the humidity meter 9 is inserted into the garbage pile, and the ultrasonic level gauge 8 is fixed by the mounting bracket so that the ultrasonic level gauge 8 is vertically aligned with the bottom of the shaft.

[0038] The detection plate 12 is fitted onto the measuring head 11. The C-shaped strip 15 is elastic and can be swung to separate the connector 17 and the plug 18, and to separate the C-shaped strip 15 from the lower end of the anti-detachment pin 16. The anti-detachment pin 16 is inserted into the measuring head 11. The C-shaped strip 15 is swung to fit the anti-detachment pin 16. The position of the plug 18 is adjusted and inserted into the connector 17. At this time, the anti-detachment pin 16 blocks the detection plate 12, and the detection plate 12 will not fall off the measuring head 11. The wire displacement meter 7 is fixed to a stable position. After the fixing cone 14 passes through the hole seat 13, the detection plate 12 is pulled. The detection plate 12 is inserted into the garbage pile at a position where it may slide through the fixing cone 14.

[0039] Pressure gauge 10 monitors the internal pressure of the waste pile, wire displacement gauge 7 monitors whether the waste pile is sliding locally, hygrometer 9 monitors the humidity of the waste pile, and ultrasonic level gauge 8 monitors the liquid level of the landfill. The monitoring results are collected by data acquisition instrument 1, which packages the data and sends it to the monitoring host 5 through wireless transmission module 4. The monitoring host 5 can view the data through a visual interface, which can monitor the status of the waste pile in real time and can also be used to assess the stability of the waste pile.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-parameter real-time monitoring device for landfills, characterized in that, include: The data acquisition device (1) is connected to a wire displacement meter (7) and a pressure gauge (10). The data acquisition device (1) is connected to the monitoring host (5) through a wireless transmission module (4). The detection plate (12) has two holes (13) with a fixed cone (14) inserted in the holes (13). The detection plate (12) is connected to the measuring head (11) of the wire displacement meter (7). Anti-detachment pin (16), with a C-shaped strip (15) rotatably mounted at one end, the other end of the C-shaped strip (15) being fitted onto the anti-detachment pin (16), and the anti-detachment pin (16) passing through the measuring head (11).

2. The real-time multi-parameter monitoring device for landfills according to claim 1, characterized in that: The data acquisition instrument (1) is connected to a hygrometer (9) and an ultrasonic level gauge (8).

3. The real-time multi-parameter monitoring device for landfills according to claim 1, characterized in that: The data acquisition device (1) is electrically connected to a battery (2) and a photovoltaic panel (3).

4. The real-time multi-parameter monitoring device for landfills according to claim 1, characterized in that: The monitoring host (5) is electrically connected to an audible and visual alarm (6).

5. The real-time multi-parameter monitoring device for landfills according to claim 1, characterized in that: The anti-detachment pin (16) has a plug interface (17) on its surface, and the C-shaped strip (15) has a plug (18) corresponding to the plug interface (17).

6. The real-time multi-parameter monitoring device for landfills according to claim 1, characterized in that: The upper end of the anti-detachment pin (16) is provided with a limiting cap (19), and the C-shaped strip (15) passes through the limiting cap (19).

7. The real-time multi-parameter monitoring device for landfills according to claim 1, characterized in that: The C-shaped strip (15) is elastic so that the C-shaped strip (15) can be detachably connected to the anti-detachment pin (16).

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