Pipeline leak monitoring system

Abstract

The utility model discloses a pipeline leakage monitoring system, pipeline leakage monitoring system includes acceleration sensor, pipeline leakage monitoring device, satellite positioning module, thermoelectric module, battery module and wireless communication module, and acceleration sensor installs respectively on heating pipeline and return water pipeline, and acceleration sensor transmits vibration signal to pipeline leakage monitoring device, thermoelectric module is connected with battery module and transmits electric energy to battery module, and battery module is connected pipeline leakage monitoring device and transmits electric energy to pipeline leakage monitoring device, and pipeline leakage monitoring device transmits vibration signal to target terminal through wireless communication module, and satellite positioning module sends the positioning data to pipeline leakage monitoring device, the utility model discloses a pipeline leakage monitoring system can obtain the vibration signal of pipeline and will vibration signal upload to target terminal, and the standby time is longer, and the working efficiency is higher.

Description

Technical Field

[0001] This utility model relates to a pipeline leakage monitoring system. Background Technology

[0002] A heating system refers to the general term encompassing boilers in boiler rooms, heat exchange units, outdoor heating pipe networks, and radiators. Heating systems are beginning to shift towards intelligent and low-carbon development.

[0003] In older urban areas, directly buried heating pipes often leak due to corrosion and other reasons, leading to a decline in heating quality during winter. Outdoor heating pipes are buried several meters below the surface, making it difficult to locate leaks visually or by sound in their early stages.

[0004] In existing technologies, leak location through excavation is quite difficult. Leak detection is usually carried out by listening or using robots inside the pipeline. However, both of these methods have drawbacks. The accuracy of leak location by listening is low, and the long pipeline makes the location efficiency low, making it impossible to achieve large-scale real-time monitoring. Locating leaks using robots inside the pipeline has the problem of high usage and maintenance costs. If a large number of robots inside the pipeline are needed to quickly locate a large area of ​​thermal pipelines, a large number of robots are required.

[0005] With the advancement of technology, existing heating and water supply wells are becoming increasingly intelligent (see CN2023200415998 and CN2023100311442), which can solve the problem of underground power supply.

[0006] Existing pipeline leak monitoring systems, such as CN2023211191331, suffer from drawbacks such as short standby time, insufficient power supply, and high battery power requirements. Utility Model Content

[0007] The technical problem to be solved by this utility model is to overcome the shortcomings of existing pipeline leakage monitoring systems, such as short standby time, insufficient power supply, and high battery power requirements, and to provide a pipeline leakage monitoring system that can acquire vibration signals from pipelines and upload the vibration signals to the target terminal, with longer standby time and higher working efficiency.

[0008] The present invention solves the above-mentioned technical problems through the following technical solution:

[0009] A pipeline leak monitoring system is characterized in that it includes two accelerometers, a pipeline leak monitoring device, a satellite positioning module, a thermoelectric generator module, a battery module, and a wireless communication module.

[0010] Two accelerometers are installed on the heating pipe and the return water pipe, respectively, and the accelerometers transmit vibration signals to the pipe leakage monitoring device.

[0011] The thermoelectric power generation module is connected to the battery module and transmits electrical energy to the battery module;

[0012] The battery module is connected to the pipeline leak monitoring device and transmits electrical energy to the pipeline leak monitoring device;

[0013] The pipeline leakage monitoring device transmits vibration signals to the target terminal via a wireless communication module;

[0014] The satellite positioning module sends positioning data to the pipeline leak monitoring device.

[0015] Preferably, the battery module includes a lithium battery and a capacitor module, and the lithium battery and the capacitor module are connected in parallel and then connected to the thermoelectric power generation module and the pipeline leakage monitoring device, respectively.

[0016] Preferably, there are two lithium batteries and two capacitor modules. The two lithium batteries are connected in series and then connected to the thermoelectric power generation module and the pipeline leakage monitoring device, respectively. The two capacitor modules are connected in parallel with the two lithium batteries, respectively.

[0017] Preferably, the pipeline leakage monitoring device includes a control chip and a switching circuit. The battery module is connected to an acceleration sensor, a satellite positioning module, a liquid level sensor module, a temperature sensor module, and a wireless communication module through the switching circuit. The control chip is connected to the battery module, and the control module sends control signals to the switching circuit.

[0018] Preferably, the pipeline leakage monitoring system further includes a liquid level sensor module and a temperature sensor module. The liquid level sensor module is located at the bottom of the maintenance well and transmits a liquid level signal to the pipeline leakage monitoring device. The temperature sensor module is located inside the maintenance well and transmits a temperature signal to the pipeline leakage monitoring device.

[0019] Preferably, the thermoelectric power generation module includes a heat dissipation device, a plurality of thermoelectric power generation plates, a heat conduction device, and a charging and discharging circuit.

[0020] The front side of the thermoelectric generator is mounted on the top surface of the heat-conducting device, and the back side of the thermoelectric generator is attached to the heat dissipation device through a heat-conducting material.

[0021] The bottom surface of the heat-conducting device is in contact with the heating pipe;

[0022] The thermoelectric generators are all connected to the input terminal of the charging and discharging circuit, which includes a voltage regulator circuit.

[0023] The output terminal of the charging and discharging circuit is connected to the electrical load.

[0024] Preferably, the heat dissipation device includes a square base and a plurality of heat dissipation columns disposed on the square base. The height of the heat dissipation columns increases in each target direction, the target direction being the direction from the midpoint of one side of the square to the center of the square. The heat dissipation columns include a plurality of heat dissipation column groups, each heat dissipation column group forming a square shape. The heat dissipation columns in the same group have the same height, the centers of all heat dissipation column groups coincide, and the corresponding sides of the square are parallel. The height of the heat dissipation column groups increases uniformly towards the center.

[0025] Preferably, the pipeline leakage monitoring device includes a coaxial cable connector, which connects an acceleration sensor and a liquid level sensor module, and the temperature sensor module is connected to the pipeline leakage monitoring device via a compensating wire.

[0026] Preferably, the satellite positioning module and the wireless communication module are located inside the pipeline leakage monitoring device, and the antennas of the satellite positioning module and the wireless communication module are installed below the wellhead of the maintenance well.

[0027] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0028] The positive and progressive effects of this utility model are as follows:

[0029] The pipeline leakage monitoring system of this invention can acquire the vibration signal of the pipeline and upload the vibration signal to the target terminal, with a longer standby time and higher working efficiency. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the pipeline leakage monitoring system according to Embodiment 1 of this utility model.

[0031] Figure 2 This is another structural schematic diagram of the pipeline leakage monitoring system of Embodiment 1 of this utility model.

[0032] Figure 3 This is a schematic diagram of the thermoelectric power generation module of Embodiment 1 of this utility model.

[0033] Figure 4 This is another structural schematic diagram of the thermoelectric power generation module of Embodiment 1 of this utility model.

[0034] Figure 5 This is another structural schematic diagram of the thermoelectric power generation module of Embodiment 1 of this utility model. Detailed Implementation

[0035] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0036] Example 1

[0037] See Figures 1 to 5 This embodiment provides a pipeline leakage monitoring system installed in the maintenance well 11 of the heating system.

[0038] The pipeline leak monitoring system includes two acceleration sensors 12, a pipeline leak monitoring device 13, a satellite positioning module, a thermoelectric power generation module 15, a battery module 16, and a wireless communication module.

[0039] Two accelerometers are respectively installed on the heating pipe 111 and the return water pipe 112, and the accelerometers transmit vibration signals to the pipe leakage monitoring device 13;

[0040] The thermoelectric power generation module 15 is connected to the battery module 16 and transmits electrical energy to the battery module;

[0041] The battery module is connected to the pipeline leak monitoring device and transmits electrical energy to the pipeline leak monitoring device;

[0042] The pipeline leakage monitoring device transmits vibration signals to the target terminal via a wireless communication module;

[0043] The satellite positioning module sends positioning data to the pipeline leak monitoring device.

[0044] Two accelerometers are used to monitor the acoustic signals of the supply and return water in the heating pipeline. The insulation structure 113 of the pipeline is removed, exposing the metal wall. After removing surface dust and corrosion, the accelerometers are installed on the wall, ideally horizontally. There are two installation methods: one is to attach magnetic horseshoe-shaped magnets to the bottom of the accelerometers to the pipe wall; the other is to use high-temperature resistant adhesives, such as those from Kelft or similar brands, to bond them to the surface. It is crucial to ensure the wall surface is clean and free of rust or other contaminants; otherwise, neither adhesive bonding nor horseshoe-shaped magnets will guarantee a good connection between the sensor and the pipeline, leading to signal distortion.

[0045] The main unit receives power through a power port, with a power supply of 4.5V-24V. The power comes from the energy storage battery and its associated thermoelectric generator. This generator uses the temperature difference between the heated surface and the ambient temperature, employing the principle of semiconductor thermoelectric conversion, to produce 1-5V electricity. This electricity is then regulated to the battery charging voltage to charge the battery, achieving self-powered operation. Power can also be supplemented by disconnecting the power port and replacing the battery.

[0046] The host integrates a BeiDou module for satellite positioning and clock synchronization. It obtains position and clock through a BeiDou antenna. The BeiDou module prioritizes Quectel L76K chips and Qianxun MC280M chips to achieve BeiDou satellite positioning and clock synchronization.

[0047] The cables for the wireless communication module antenna and the satellite positioning module antenna exit from the top and connect to the pipeline leak monitoring device. Using existing control methods, the pipeline leak monitoring device operates in low-power mode, collecting data at six time points: 0, 4, 8, 12, 16, and 20. After the first five data collections, the MCU (control chip) pins are switched to analog input mode. Then, the power supply to the Beidou module, communication antenna, temperature sensor, and liquid level sensor is turned off. At this point, only the MCU itself is running. After configuring its own pin states, the MCU enters a stop low-power mode until it automatically wakes up at the next time point or is forcibly woken up by clicking the switch button to perform data collection. After the sixth data collection, all data needs to be uploaded to the cloud before entering low-power mode again. The cloud will trigger an alarm if temperature, liquid level, or acceleration exceeds the limits, thus achieving the purpose of pipeline health monitoring. For example, if a pipeline experiences corrosion leakage, localized stress damage, or localized blockage, acoustic data will be obtained from the acceleration sensor. If the data exceeds the threshold, the platform will issue a warning.

[0048] In the above-mentioned working process, the requirements for the battery are relatively high, requiring the battery to be able to provide a large current and voltage within tens of seconds. To address this issue, this application provides the following solution:

[0049] The battery module 16 includes a lithium battery 161 and a capacitor module 162. The lithium battery 161 and the capacitor module 162 are connected in parallel and then connected to the thermoelectric power generation module 15 and the pipeline leakage monitoring device, respectively.

[0050] The number of lithium batteries and capacitor modules are two each. The two lithium batteries are connected in series and then connected to the thermoelectric power generation module and the pipeline leakage monitoring device, respectively. The two capacitor modules are connected in parallel with the two lithium batteries.

[0051] The pipeline leakage monitoring device includes a control chip 131 and a switching circuit 132. The battery module is connected to an acceleration sensor, a satellite positioning module, a liquid level sensor module, a temperature sensor module, and a wireless communication module through the switching circuit. The control chip is connected to the battery module, and the control module sends control signals to the switching circuit.

[0052] By combining capacitors and batteries, the current can be increased in a short time to power the entire system, which not only meets the system's power requirements but also reduces the hardware requirements for the battery.

[0053] The pipeline leakage monitoring system also includes a liquid level sensor module 18 and a temperature sensor module. The liquid level sensor module is located at the bottom of the maintenance well and transmits a liquid level signal to the pipeline leakage monitoring device. The temperature sensor module is located inside the maintenance well and transmits a temperature signal to the pipeline leakage monitoring device.

[0054] The thermoelectric power generation module 15 includes a heat dissipation device, a plurality of thermoelectric power generation plates 153, a heat conduction device 154, and a charging and discharging circuit.

[0055] The front side of the thermoelectric generator is mounted on the top surface of the heat-conducting device, and the back side of the thermoelectric generator is attached to the heat dissipation device through a heat-conducting material.

[0056] The bottom surface of the heat-conducting device is in contact with the heating pipe;

[0057] The thermoelectric generators are all connected to the input terminal of the charging and discharging circuit, which includes a voltage regulator circuit.

[0058] Thermally conductive silicone 155 is provided on both sides of the thermoelectric generator.

[0059] The output terminal of the charging and discharging circuit is connected to the electrical load.

[0060] The heat dissipation device includes a square base 152 and a plurality of heat dissipation columns 151 disposed on the square base. The height of the heat dissipation columns increases in each target direction. The target direction is the direction from the midpoint of one side of the square to the center of the square. The heat dissipation columns include a plurality of heat dissipation column groups. Each heat dissipation column group is square in shape. The heat dissipation columns in the same group have the same height. The centers of all heat dissipation column groups coincide and the corresponding sides of the square are parallel. The height of the heat dissipation column groups increases uniformly towards the center.

[0061] The pipeline leakage monitoring device includes a coaxial cable connector, which connects an acceleration sensor and a liquid level sensor module. The temperature sensor module is connected to the pipeline leakage monitoring device via a compensating wire.

[0062] The satellite positioning module and the wireless communication module are located inside the pipeline leak monitoring device. The satellite positioning module antenna 14 and the wireless communication module antenna 17 are installed below the wellhead of the maintenance well, specifically 20-50 cm below the wellhead.

[0063] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A pipeline leak monitoring system, characterized by, The pipeline leak monitoring system includes two accelerometers, a pipeline leak monitoring device, a satellite positioning module, a thermoelectric generator module, a battery module, and a wireless communication module. Two accelerometers are installed on the heating pipe and the return water pipe, respectively, and the accelerometers transmit vibration signals to the pipe leakage monitoring device. The thermoelectric power generation module is connected to the battery module and transmits electrical energy to the battery module; The battery module is connected to the pipeline leak monitoring device and transmits electrical energy to the pipeline leak monitoring device; The pipeline leakage monitoring device transmits vibration signals to the target terminal via a wireless communication module; The satellite positioning module sends positioning data to the pipeline leak monitoring device.

2. The pipe leak monitoring system of claim 1, wherein, The battery module includes a lithium battery and a capacitor module. The lithium battery and the capacitor module are connected in parallel and then connected to the thermoelectric power generation module and the pipeline leakage monitoring device, respectively.

3. The pipeline leak monitoring system of claim 2, wherein, The number of lithium batteries and capacitor modules are two each. The two lithium batteries are connected in series and then connected to the thermoelectric power generation module and the pipeline leakage monitoring device, respectively. The two capacitor modules are connected in parallel with the two lithium batteries.

4. The pipe leak monitoring system of claim 3, wherein, The pipeline leakage monitoring device includes a control chip and a switching circuit. The battery module is connected to an acceleration sensor, a satellite positioning module, a liquid level sensor module, a temperature sensor module, and a wireless communication module through the switching circuit. The control chip is connected to the battery module and sends control signals to the switching circuit.

5. The pipe leak monitoring system of claim 1, wherein, The pipeline leakage monitoring system also includes a liquid level sensor module and a temperature sensor module. The liquid level sensor module is located at the bottom of the maintenance well and transmits a liquid level signal to the pipeline leakage monitoring device. The temperature sensor module is located inside the maintenance well and transmits a temperature signal to the pipeline leakage monitoring device.

6. The pipe leak monitoring system of claim 1, wherein, The thermoelectric power generation module includes a heat dissipation device, several thermoelectric power generation plates, a heat conduction device, and a charging and discharging circuit. The front side of the thermoelectric generator is mounted on the top surface of the heat-conducting device, and the back side of the thermoelectric generator is attached to the heat dissipation device through a heat-conducting material. The bottom surface of the heat-conducting device is in contact with the heating pipe; The thermoelectric generators are all connected to the input terminal of the charging and discharging circuit, which includes a voltage regulator circuit. The output terminal of the charging and discharging circuit is connected to the electrical load.

7. The pipe leak monitoring system of claim 6, wherein, The heat dissipation device includes a square base and several heat dissipation columns disposed on the square base. The height of the heat dissipation columns increases in each target direction, which is the direction from the midpoint of one side of the square to the center of the square. The heat dissipation columns include several heat dissipation column groups, and each heat dissipation column group is square in shape. The heat dissipation columns in the same group have the same height. The centers of all heat dissipation column groups coincide and the corresponding sides of the square are parallel. The height of the heat dissipation column groups increases uniformly towards the center.

8. The pipeline leakage monitoring system as described in claim 1, characterized in that, The pipeline leakage monitoring device includes a coaxial cable connector, which connects an acceleration sensor and a liquid level sensor module. The temperature sensor module is connected to the pipeline leakage monitoring device via a compensating wire.

9. The pipe leak monitoring system of claim 1, wherein, The satellite positioning module and the wireless communication module are arranged in the pipeline leakage monitoring device, and the antennas of the satellite positioning module and the wireless communication module are arranged below the well mouth of the inspection well.

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