Underground pipe network conductive liquid level monitoring device

Abstract

The utility model discloses a conductive liquid level monitoring device for an underground pipe network. The conductive liquid level monitoring device comprises a micro-power-consumption intelligent radar liquid level instrument, a data connecting line, a first fixed mounting bracket and a conductive liquid level two-in-one sensor, the micro-power-consumption intelligent radar liquid level instrument is fixedly installed at the upper end of the inner wall of an underground pipe network cellar well through a first fixed installation support and comprises a shell, a control unit, a battery and a radar liquid level sensor. The electric conduction and liquid level two-in-one sensor extends to the bottom of an underground pipe network of a cellar well and is in communication connection with the micro-power-consumption intelligent radar liquid level instrument through a data connecting line, and the electric conduction and liquid level two-in-one sensor comprises an electric conductivity sensor, a liquid level sensor and an automatic cleaning device. The whole monitoring device adopts a sealed waterproof structure and integrates parameters of multiple sensors, and is in communication connection with terminal equipment through a control unit to realize real-time uploading and analysis of data so as to adapt to severe working conditions of an underground pipe network and provide more comprehensive, intelligent and efficient pipe network operation information.

Description

Technical Field

[0001] The utility model relates to the technical field of underground pipe network monitoring, in particular to an underground pipe network conductivity liquid level monitoring device. Background Art

[0002] As an important part of modern urban infrastructure, underground pipe network system is of great significance for improving drainage efficiency, ensuring urban safety and promoting sustainable development. In order to better promote the application of intelligent drainage of underground pipe network, it is necessary to rely on high-reliability and low-cost monitoring technology to monitor the underground drainage pipe network system in real time, including monitoring of liquid level and continuous tracking of key indicators such as water quality.

[0003] At present, most of the common monitoring sensors on the market adopt a single-parameter design, and realize data transmission and monitoring by cooperating with RTU (Remote Terminal Unit). However, these sensors are mainly suitable for surface or industrial control environments. The working conditions of underground pipe networks are extremely harsh, with high temperature and high humidity environments, erosion by corrosive gases, frequent flooding, sedimentation and siltation, etc., which make it difficult for the above conventional sensors to work normally; moreover, single-parameter sensors can only collect single information, which may result in incomplete and inaccurate data, blind spots in measurement, etc., and cannot provide comprehensive underground pipe network operation information. Utility Model Content

[0004] In order to solve the above problems, the purpose of the utility model is to provide an underground pipe network conductivity liquid level monitoring device suitable for the harsh environment of the underground pipe network and integrating multiple sensor parameters.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides an underground pipe network conductivity liquid level monitoring device, including a micro-power intelligent radar liquid level meter, a data connection line, a first fixed installation bracket and a conductivity liquid level two-in-one sensor, wherein the micro-power intelligent radar liquid level meter is fixedly installed on the upper end of the inner wall of the underground pipe network pit through the first fixed installation bracket, and includes a shell, a control unit, a battery and a radar liquid level sensor, wherein the control unit and the battery are located inside the shell, and the radar liquid level sensor is located outside the shell, and its induction probe faces the water surface, and is used to collect water level information data;

[0007] The conductivity-liquid-level two-in-one sensor extends to the bottom of the underground pipe network of the cellar well and is connected to the micro-power intelligent radar liquid level meter through the data connection line, including a conductivity sensor, a liquid level sensor and an automatic cleaning device for collecting water quality and water level information data;

[0008] The control unit is connected to the terminal device for communication, and is used to collect information data collected by the radar liquid level sensor and the conductivity liquid level two-in-one sensor, and transmit the information data to the terminal device;

[0009] The housing, data connection line, radar liquid level sensor and conductivity liquid level two-in-one sensor are all sealed and waterproof structures.

[0010] In one embodiment of the present invention, the shell is sealed on the outside with double sealing rings and on the inside with electronic sealant.

[0011] In one embodiment of the present invention, the housing, data connection line, radar liquid level sensor and conductivity liquid level two-in-one sensor are all IP68 grade sealed and waterproof structures.

[0012] In one embodiment of the utility model, the conductivity sensor is a four-electrode conductivity sensor, the liquid level sensor is a pressure liquid level sensor, the pressure liquid level sensor adopts absolute pressure liquid level monitoring, and the atmospheric pressure is compensated by the micro-power intelligent radar liquid level meter.

[0013] In one embodiment of the utility model, the underground pipe network conductivity liquid level monitoring device also includes a second fixed mounting bracket installed on the inner wall of the underground pipe network pit, and the data connection line is fixed by the second fixed mounting bracket to keep the conductivity liquid level two-in-one sensor in a vertical state.

[0014] In one embodiment of the utility model, the end of the two-in-one conductivity liquid level sensor away from the data connection line is set as an oblique section, the sensing probe of the four-electrode conductivity sensor and the sensing probe of the pressure liquid level sensor are distributed on the oblique section, and the sensing probe of the pressure liquid level sensor is located in the middle of the sensing probe of the four-electrode conductivity sensor.

[0015] In one embodiment of the present invention, the automatic cleaning device is located on the oblique section of the conductive liquid level two-in-one sensor.

[0016] In one embodiment of the present invention, the control unit is connected to the terminal device through on-site Bluetooth configuration or platform remote configuration.

[0017] In one embodiment of the utility model, the micro-power consumption intelligent radar level meter is provided with data connection line interfaces of multiple sensors.

[0018] In one embodiment of the utility model, the underground pipe network conductivity liquid level monitoring device also includes other hydrological and water quality sensors that comply with the communication protocol, and the hydrological and water quality sensors are communicatively connected to the micro-power consumption intelligent radar liquid level meter via the data connection line.

[0019] Compared with the prior art, the underground pipe network conductivity liquid level monitoring device provided by the utility model has the following beneficial effects:

[0020] (1) The underground pipe network conductivity liquid level monitoring device provided by the utility model has a housing, data connection line, radar liquid level sensor and conductivity liquid level two-in-one sensor of its micro-power intelligent radar liquid level meter, which are all sealed and waterproof structures, reaching the IP68 waterproof grade, and have stronger sealing, waterproof and corrosion resistance, which can cope with the corrosive gases that may exist in the underground pipe network, and ensure that the device can still work stably under frequent flooding; at the same time, the conductivity liquid level two-in-one sensor extending to the bottom of the underground pipe network of the cellar well is equipped with an automatic cleaning device, which is convenient for cleaning and maintaining the sensor probe, helping it to resist the deposition and accumulation of silt at the bottom, and ensuring the reliability of the sensor in long-term use.

[0021] (2) The utility model provides an underground pipe network conductivity liquid level monitoring device, whose conductivity liquid level two-in-one sensor integrates a liquid level sensor and a conductivity sensor, has a small size and low energy consumption, can realize real-time monitoring of multiple parameters such as water level factors and water quality factors, and provides more comprehensive underground pipe network operation information.

[0022] (3) The underground pipe network conductivity liquid level monitoring device provided by the utility model adopts a dual liquid level monitoring redundant design of radar liquid level monitoring and pressure liquid level monitoring. In some flood-prone areas or cellars that are prone to obstruction by debris, the advantages of radar liquid level monitoring and pressure liquid level monitoring complement each other, thereby improving the accuracy of water level monitoring.

[0023] (4) The underground pipe network conductivity level monitoring device provided by the utility model realizes real-time data uploading and analysis through the cooperation of the control unit and the terminal equipment, which helps to timely discover and deal with potential problems and improve the overall efficiency of the underground pipe network drainage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0025] Figure 2 The figure is a schematic diagram of the structure of a two-in-one conductivity liquid level sensor according to an embodiment of the present invention.

[0026] Among them: 1. Micro-power intelligent radar liquid level meter; 11. Shell; 12. Control unit; 13. Battery; 14. Radar liquid level sensor; 2. Data connection line; 3. First fixed mounting bracket; 4. Conductivity liquid level two-in-one sensor; 41. Inductive probe of four-electrode conductivity sensor; 42. Inductive probe of pressure liquid level sensor; 43. Automatic cleaning device; 44. Oblique section; 5. Second fixed mounting bracket. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, an integral connection, or a detachable connection; it can be the internal connection of two components; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The present application provides an underground pipe network conductivity level monitoring device, such as Figure 1 As shown, it includes a micro-power intelligent radar level meter 1, a data connection line 2, a first fixed mounting bracket 3 and a conductivity liquid level two-in-one sensor 4. Among them, the micro-power intelligent radar level meter 1 is fixedly installed on the upper end of the inner wall of the underground pipe network pit through the first fixed mounting bracket 3, including a shell 11, a control unit 12, a battery 13 and a radar liquid level sensor 14. The control unit 12 and the battery 13 are located inside the shell 11, and the radar liquid level sensor 14 is located outside the shell 11, and its sensing probe faces the water surface. The radar liquid level sensor 14 is used to collect water level information data. It determines the distance between the water surface and the radar by reflecting the radar wave signal on the water surface to calculate the water level. The control unit 12 integrated in the micro-power intelligent radar level meter 1 is connected to the RTU, collects the water level data collected by the radar liquid level sensor 14 and transmits it to the RTU for real-time monitoring and analysis, so as to timely discover and deal with potential problems. The control unit 12 can also be connected to terminal devices such as mobile phones through on-site Bluetooth configuration.

[0031] like Figure 1-2As shown, in this embodiment, the conductivity liquid level two-in-one sensor 4 includes a conductivity sensor, a liquid level sensor and an automatic cleaning device 43, which extends to the bottom of the underground pipe network of the cellar well and is connected to the micro-power intelligent radar liquid level meter 1 through a data connection line 2. The conductivity liquid level two-in-one sensor 4 is used to collect water quality and water level information data, wherein the conductivity sensor is used for water quality monitoring, and the liquid level sensor is used for water level monitoring. The collected data is collected and transmitted to the terminal device through the control unit 12 of the micro-power intelligent radar liquid level meter 1 for real-time monitoring and analysis. Preferably, in this embodiment, the conductivity sensor in the conductivity liquid level two-in-one sensor 4 is a four-electrode conductivity sensor, and the liquid level sensor is a pressure liquid level sensor. The pressure liquid level sensor adopts absolute pressure pressure liquid level monitoring, and the atmospheric pressure is compensated by the micro-power intelligent radar liquid level meter 1. It is worth noting that in the present embodiment, the data connection line 2 is fixed by a second fixed mounting bracket 5 installed on the inner wall of the underground pipe network pit, so that the conductivity-liquid level two-in-one sensor 4 remains in a vertical state. In some other embodiments, the data connection line 2 may not be fixed, and the conductivity-liquid level two-in-one sensor 4 may be located at the bottom of the underground pipe network in the pit in an inclined or horizontal form.

[0032] Furthermore, if Figure 2 As shown, in this embodiment, the end of the conductivity level two-in-one sensor 4 away from the data connection line 2 is set as an oblique section 44, the sensing probe 41 of the four-electrode conductivity sensor is distributed on the oblique section 44, the sensing probe 42 of the pressure level sensor is located in the middle of the sensing probe 41 of the four-electrode conductivity sensor, and the automatic cleaning device 43 is also set on the oblique section 44, located next to the above-mentioned sensing probe. As a preferred embodiment, in this embodiment, the automatic cleaning device 43 is an automatic cleaning brush. Driven by the motor, the brush rotates to the position of the sensing probe, and the sensing probe can be brushed and maintained to deal with the problem that the sensing probe at the bottom of the underground pipe network of the cellar well is susceptible to silt deposition and siltation, and ensure the normal operation of the sensor. The setting of the oblique section 44 increases the available area of ​​the conductivity level two-in-one sensor 4 on the one hand, and can accommodate the installation of the automatic cleaning device 43 and the sensing probes of multiple sensors at the same time, and on the other hand, it also helps to prevent the sensing probe from being affected by silt deposition and siltation.

[0033] It should be noted that, in the present embodiment, the shell 11, data connection line 2, radar liquid level sensor 14 and conductivity liquid level two-in-one sensor 4 of the micro-power intelligent radar liquid level meter 1 are all sealed and waterproof structures, wherein the shell 11 of the micro-power intelligent radar liquid level meter 1 is sealed with double sealing rings on the outside and electronic sealant on the inside, and the connection between the conductivity liquid level two-in-one sensor 4 and the data connection line 2 of the micro-power intelligent radar liquid level meter 1 is also sealed, and the whole machine meets the IP68 waterproof standard to cope with the erosion of corrosive gases in the underground pipeline network or severe working conditions such as being submerged by water.

[0034] It is worth noting that in this embodiment, the water level monitoring adopts a dual level monitoring redundant design of radar level monitoring and pressure level monitoring. When the underground pipe network pit is flooded or the use is restricted by the terrain and environment changes, the radar level sensor 14 cannot work normally and cannot reflect the real water level. At this time, the pressure level sensor is used as an auxiliary to avoid distortion of water level monitoring data. When it is not flooded on a daily basis, the radar level sensor 14 cooperates with the pressure level sensor to improve the accuracy of water level detection.

[0035] Furthermore, the micro-power intelligent radar level meter 1 can be provided with data connection line interfaces for multiple sensors, and other hydrological and water quality sensors that comply with the communication protocol in addition to the conductivity level two-in-one sensor 4 can be connected through the data connection line 2 to meet the monitoring needs of more underground pipe network systems. At the same time, the underground pipe network conductivity level monitoring device of this embodiment adopts a low-power and sleep design, enters a sleep state in the non-data collection and transmission stage, and transmits the information data collected by the sensor to the terminal device by means of timed wake-up, which improves the endurance of the device and does not require frequent replacement of batteries 13.

Claims

1. An underground pipe network conductivity level monitoring device, characterized in that: The invention comprises a micro-power consumption intelligent radar liquid level meter (1), a data connection line (2), a first fixed installation bracket (3) and a conductivity liquid level two-in-one sensor (4); the micro-power consumption intelligent radar liquid level meter (1) is fixedly installed on the upper end of the inner wall of an underground pipe network pit through the first fixed installation bracket (3); the micro-power consumption intelligent radar liquid level meter (1) comprises a housing (11), a control unit (12), a battery (13) and a radar liquid level sensor (14); the control unit (12) and the battery (13) are located inside the housing (11); the radar liquid level sensor (14) is located outside the housing (11); its sensing probe faces the water surface and is used to collect water level information data; The conductivity-liquid-level two-in-one sensor (4) extends to the bottom of the underground pipe network of the cellar well and is connected to the micro-power intelligent radar liquid level meter (1) through the data connection line (2), and includes a conductivity sensor, a liquid level sensor and an automatic cleaning device (43), and is used to collect water quality and water level information data; The control unit (12) is connected to the terminal device for communication, and is used to collect information data collected by the radar liquid level sensor (14) and the conductivity liquid level two-in-one sensor (4), and transmit the information data to the terminal device; The housing (11), the data connection line (2), the radar liquid level sensor (14) and the conductivity liquid level two-in-one sensor (4) are all sealed and waterproof structures.

2. The underground pipe network conductivity level monitoring device according to claim 1, characterized in that: The shell (11) is sealed externally with double sealing rings and internally with electronic sealant.

3. The underground pipe network conductivity level monitoring device according to claim 1, characterized in that: The housing (11), the data connection line (2), the radar liquid level sensor (14) and the conductivity liquid level two-in-one sensor (4) are all IP68-level sealed and waterproof structures.

4. The underground pipe network conductivity level monitoring device according to claim 1, characterized in that: The conductivity sensor is a four-electrode conductivity sensor, the liquid level sensor is a pressure liquid level sensor, the pressure liquid level sensor uses absolute pressure liquid level monitoring, and the atmospheric pressure is compensated by the micro-power consumption intelligent radar liquid level meter (1).

5. The underground pipe network conductivity level monitoring device according to claim 4, characterized in that: It also comprises a second fixed mounting bracket (5) mounted on the inner wall of the underground pipe network pit, and the data connection line (2) is fixed by the second fixed mounting bracket (5) so that the conductivity liquid level two-in-one sensor (4) remains in a vertical state.

6. The underground pipe network conductivity level monitoring device according to claim 4, characterized in that: One end of the conductivity liquid level two-in-one sensor (4) away from the data connection line (2) is arranged as an oblique section (44); the sensing probe (41) of the four-electrode conductivity sensor and the sensing probe (42) of the pressure liquid level sensor are both distributed on the oblique section (44); and the sensing probe (42) of the pressure liquid level sensor is located in the middle of the sensing probe (41) of the four-electrode conductivity sensor.

7. The underground pipe network conductivity level monitoring device according to claim 6, characterized in that: The automatic cleaning device (43) is located on the oblique section (44) of the conductive liquid level two-in-one sensor (4).

8. The underground pipe network conductivity level monitoring device according to claim 1, characterized in that: The control unit (12) is connected to the terminal device through on-site Bluetooth configuration or platform remote configuration.

9. The underground pipe network conductivity level monitoring device according to any one of claims 1 to 8, characterized in that: The micro-power consumption intelligent radar liquid level meter (1) is provided with data connection line interfaces of multiple sensors.

10. The underground pipe network conductivity level monitoring device according to claim 9, characterized in that: It also includes other hydrological and water quality sensors that comply with the communication protocol, and the hydrological and water quality sensors are communicatively connected to the micro-power consumption intelligent radar level meter (1) via the data connection line (2).

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