A pipeline leakage detection system in a pipe gallery

Abstract

The present invention relates to a pipeline leakage detection system in a utility tunnel, belonging to the technical field of leakage detection systems for utility tunnels. A pipeline leakage detection system in a utility tunnel includes two parallel wires and a server. The special feature is that the two parallel wires are laid in multiple groups along the utility tunnel, respectively laid under the water pipes in the utility tunnel. The two wires in each group are connected to a data collector, and each data collector is connected to the server through a network cable. A power supply unit for powering the wires, a detection unit for detecting whether the two wires are short-circuited, and a communication unit for interacting with the server are provided on the data collector.

Description

Technical Field

[0001] The present invention relates to a pipeline leakage detection system in a utility tunnel, belonging to the technical field of leakage detection systems for utility tunnels. Background Art

[0002] A utility tunnel, also known as an integrated utility tunnel, is an underground urban pipeline comprehensive corridor, that is, a tunnel space is built underground in the city, integrating various engineering pipelines such as electricity, communication, gas, heating, water supply and drainage, etc., with special inspection ports, hoisting ports and monitoring systems, and implementing unified planning, unified design, unified construction and management. It is an important infrastructure and "lifeline" to ensure the operation of the city. Since the utility tunnel is built underground and the working environment is relatively enclosed, the inspection of the utility tunnel is mostly regular inspection, and the monitoring of unexpected situations such as water leakage cannot be carried out at any time. Once a water supply pipeline leaks in the underground utility tunnel, it will affect the entire working environment of the utility tunnel. Therefore, how to detect whether there is water leakage in the underground utility tunnel is an important research topic. Summary of the Invention

[0003] Aiming at the problem of the lack of effective monitoring of water leakage in underground utility tunnels in the prior art, a pipeline leakage detection system in a utility tunnel is provided.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] A pipeline leakage detection system in a utility tunnel includes two parallel wires and a server. The special feature is that the two parallel wires are laid in multiple sections along the utility tunnel, that is, the utility tunnel is divided into multiple sections, and a group of two parallel wires is laid in each section, respectively laid under the water pipes in the utility tunnel. The two wires in each group are connected to a data collector, and each data collector is connected to the server through a network cable, 4G or 5G communication; a power supply unit for supplying power to the wires, a detection unit for detecting whether the two wires are short-circuited, and a communication unit for interacting with the server are provided on the data collector.

[0006] The advantages of the above technical solution are as follows: By laying parallel wires under the pipelines in the utility tunnel and setting them in a sectional manner, the wires in each section are connected to the corresponding data collectors, and the data collectors are then connected to the server. When water leakage occurs, water serves as a medium to connect the two wires, which is detected by the data collector. The data collector transmits the detected signal to the server, and the server determines whether there is water leakage and the specific data collector where the water leakage is detected based on the feedback of each data collector, and then determines the general location of the water leakage.

[0007] On the basis of the above technical solution, the inventor makes the following improvements and refinements to the above technical solution:

[0008] Further, the wire is laid in a wire duct, and the wire duct is made of an insulating material.

[0009] The beneficial effects of the above technical features in this application are as follows: The existence of the wire duct is to reduce the influence of the environment on the wire, so as to avoid the situation where two wires are lapped due to accidental circumstances, resulting in false alarms.

[0010] Further, a middle partition is provided at the bottom of the wire duct, and the height of the middle partition is greater than the diameter of the wire and less than the height of the side wall of the wire duct.

[0011] The beneficial effects of the above technical features in this application are as follows: The above technical features are the limitations on the specific structure of the wire duct. The middle partition further separates the two wires to avoid accidental situations. At the same time, the control of the height of the middle partition is to ensure that when water leakage occurs, the water overflows the middle partition in the wire duct, and the water leakage can be discovered as soon as possible. Therefore, there are corresponding requirements for the height of the middle partition.

[0012] Further, the cross-section of the wire duct is trapezoidal, and the width of the opening of the wire duct is greater than the width of the bottom.

[0013] The beneficial effects of the above technical features in this application are as follows: The trapezoidal wire duct with a larger opening and a smaller bottom is beneficial for collecting water leakage.

[0014] Further, the wire duct is suspended at the bottom of the water pipe or embedded in the ground.

[0015] The beneficial effects of the above technical features in this application are as follows: The corresponding installation method can be selected according to the actual situation. For the existing pipe gallery, the wire duct can be suspended under the water pipe of the existing pipe gallery or the pipe duct can be embedded in the ground. For the newly built pipe gallery, the corresponding wire duct or wire duct installation position can be designed or reserved in advance on the ground.

[0016] Further, a water-soluble filler is paved in the wire duct. The water-soluble filler is composed of the following substances in parts by weight: 40-60 parts of soluble starch, 10-15 parts of sodium chloride, 5-10 parts of polyvinylpyrrolidone, 3-5 parts of polystyrene microspheres, and 3-5 parts of xanthan gum. The paving method of the water-soluble filler is as follows: Weigh each component according to the parts by weight. Add the soluble starch to the water at a constant temperature of 80°C in batches, stir until completely dissolved, add sodium chloride and continue to stir until completely dissolved, add polyvinylpyrrolidone, polystyrene microspheres, and xanthan gum, stir evenly and then pour it into the wire duct, compact and level it with a scraper, and dry it naturally.

[0017] The beneficial effects of the above technical features in this application are as follows: The water-soluble filler has the function of absorbing and discharging moisture; the polystyrene microspheres are light in weight and have drainage properties; xanthan gum can increase viscosity; polyvinylpyrrolidone can accelerate the dissolution of the filler when there is a water leak; the presence of the water-soluble filler ensures that when there is no water leak in the pipeline, the water-soluble filler can absorb a small amount of water vapor in the environment, preventing the wire from being exposed to the environment and being corroded; when there is a water leak in the pipeline, the water-soluble filler can dissolve quickly without affecting the detection effect.

[0018] Further, the wire is laid in a reserved wire groove on the ground. A waterproof paint layer is brushed in the reserved wire groove, and a neutral plate is provided at the bottom of the reserved wire groove. The height of the neutral plate is greater than the diameter of the wire and less than the height of the side wall of the reserved wire groove.

[0019] The beneficial effects of the above technical features in this application are as follows: Since the technical solution in this technical feature installs the wire on the ground, in order to ensure that the wire is not corroded, the wire groove is designed to be waterproof.

[0020] Further, the reserved wire groove is filled with water-based paint, a hydrolytic plastic film is laid on the top surface of the water-based paint, and a separation net is laid at the opening of the reserved wire groove above the hydrolytic plastic film.

[0021] The beneficial effects of the above technical features in this application are as follows: The above technical features are to ensure that even if there is an upper pressure or a moving object passes over the wire groove laid on the ground, it will not directly act on the wire.

[0022] Further, for the wire, the length of each group of wires is 50 - 200 m.

[0023] The beneficial effects of the above technical features in this application are as follows: Such segmentation can ensure that when there is a water leak, it is easier for maintenance personnel to determine the location of the water leak, and this spacing is very convenient for maintenance personnel to perform maintenance.

[0024] Further, the server is also communicatively connected to a control center and / or a mobile phone, and a control function APP is installed in the mobile phone.

[0025] The above technical features are to be able to receive an alarm on the server in a control center or a mobile phone terminal in a timely manner, so as to go to the alarm location for inspection and repair as soon as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of a pipeline water leak detection system in a pipe gallery according to this application;

[0027] Figure 2 It is a schematic structural diagram of a wire groove hanging under a water pipe;

[0028] Figure 3 is Figure 2 a partial enlarged view of the cross-section;

[0029] Figure 4 is a schematic diagram of the wire duct installed on the ground;

[0030] Figure 5 is Figure 4 the enlarged view at B in

[0031] The reference numerals are recorded as follows: water pipe - 1, wire duct - 2, wire - 3, data collector - 4, network cable - 5, server - 6, control center - 7;

[0032] in the middle partition - 2.2, water-soluble filler - 2.3;

[0033] reserved wire duct - 21, neutral plate - 2.21, waterproof paint layer - 2.4, hydrolytic plastic film - 2.5, isolation net - 2.6. Specific embodiments

[0034] The following embodiments in conjunction with the accompanying drawings are only to illustrate the technical solutions recorded in the claims, and are not intended to limit the scope of protection of the claims.

[0035] Embodiment 1

[0036] A pipeline leakage detection system in a pipe gallery (see the attached Figure 1 ), including two parallel wires 3 and a server 6. The two parallel wires 3 are laid in multiple groups along the pipe gallery, and are respectively laid under the water pipe 1 in the pipe gallery. The two wires 3 in each group are connected to a data collector 4, and each data collector 4 is communicatively connected to the server 6 through a network cable 5, 4G or 5G; a power supply unit for powering the wire 3, a detection unit for detecting whether the two wires are short-circuited, and a communication unit for interacting with the server 6 are provided on the data collector 4; the server 6 is also communicatively connected to the control center 7 and / or a mobile phone, and an APP with control functions is installed in the mobile phone.

[0037] Among them, the wire is laid in the wire duct 2 (see Figures 2-5 ), and the wire duct is made of an insulating material; a middle partition 2.2 is provided at the bottom of the wire duct 2, and the height of the middle partition 2.2 is greater than the diameter of the wire 3 and less than the height of the side wall of the wire duct 2;

[0038] The cross-section of the wire duct 2 is trapezoidal, and the width of the opening of the wire duct 2 is greater than the width of the bottom.

[0039] Moreover, the wire duct 2 is suspended at the bottom of the water pipe 1 or embedded in the ground;

[0040] For the wire 3, the length of each group of wires is 50 - 200m.

[0041] Example 2

[0042] On the basis of Example 1, a water-soluble filler 2.3 is filled in the wire groove 2 (see Figure 2 、 5 ). The water-soluble filler 2.3 is composed of the following substances in parts by weight: 40-60 parts of soluble starch, 10-15 parts of sodium chloride, 5-10 parts of polyvinylpyrrolidone, 3-5 parts of polystyrene microspheres, and 3-5 parts of xanthan gum; the method for filling the water-soluble filler is as follows: Weigh each component according to parts by weight, add the soluble starch to the water at a constant temperature of 80 °C in batches, stir until completely dissolved, add sodium chloride and continue to stir until completely dissolved, add polyvinylpyrrolidone, polystyrene microspheres and xanthan gum, stir evenly and then pour it into the wire groove 2, compact and level it with a scraper, and dry it naturally.

[0043] Example 3

[0044] On the basis of Example 1, the wire is laid in a reserved wire groove 21 on the ground (see Figure 5 ). A waterproof paint layer 2.4 is brushed in the reserved wire groove 21, and a neutral plate 2.21 is arranged at the bottom of the reserved wire groove 21. The height of the neutral plate 2.21 is greater than the diameter of the wire 3 and less than the height of the side wall of the reserved wire groove 21;

[0045] The reserved wire groove 21 is filled with a water-based coating 2.3, a hydrolytic plastic film 2.5 is laid on the top surface of the water-based coating 2.3, and a separation net 2.6 is laid at the opening of the reserved wire groove 21 above the hydrolytic plastic film 2.5.

[0046] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pipeline leakage detection system in a pipe gallery, comprising two parallel wires (3) and a server (6), characterized in that, The two parallel wires (3) are laid in multiple components along the pipe gallery, respectively laid below the water pipe (1) in the pipe gallery. The two wires (3) in each group are connected to a data collector (4), and each data collector (4) is connected to the server (6) through a network cable (5), 4G or 5G communication; a power supply unit for powering the wire (3), a detection unit for detecting whether the two wires are short-circuited, and a communication unit for interacting with the server (6) are provided on the data collector (4). The wire is laid in a wire duct (2), and the wire duct is made of an insulating material. A middle partition (2.2) is provided at the bottom of the wire duct (2), and the height of the middle partition (2.2) is greater than the diameter of the wire (3) and less than the height of the side wall of the wire duct (2). A water-soluble filler (2.3) is filled in the wire duct (2), and the water-soluble filler (2.3) is composed of the following substances in parts by weight: 40-60 parts of soluble starch, 10-15 parts of sodium chloride, 5-10 parts of polyvinylpyrrolidone, 3-5 parts of polystyrene microspheres, and 3-5 parts of xanthan gum; the filling method of the water-soluble filler is: weigh each component according to parts by weight, add the soluble starch to the water at a constant temperature of 80 °C in batches, stir until completely dissolved, add sodium chloride and continue to stir until completely dissolved, add polyvinylpyrrolidone, polystyrene microspheres and xanthan gum, stir evenly and then pour into the wire duct (2), compact and level with a scraper, and air-dry naturally.

2. The pipeline leakage detection system in the pipe gallery according to claim 1, wherein The cross-section of the wire duct (2) is trapezoidal, and the width of the opening of the wire duct (2) is greater than the width of the bottom.

3. The pipeline leakage detection system in the pipe gallery according to claim 2, characterized in that, The wire duct (2) is suspended at the bottom of the water pipe (1) or embedded in the ground.

4. The pipeline leakage detection system in the utility tunnel according to claim 1, characterized in that The wire is laid in a reserved wire duct (21) reserved on the ground. A waterproof paint layer (2.4) is painted in the reserved wire duct (21), and a middle vertical plate (2.21) is provided at the bottom of the reserved wire duct (21). The height of the middle vertical plate (2.21) is greater than the diameter of the wire (3) and less than the height of the side wall of the reserved wire duct (21).

5. The pipeline leakage detection system in the pipe gallery according to claim 4, characterized in that, The reserved wire duct (21) is filled with a water-soluble filler (2.3), a hydrolytic plastic film (2.5) is laid on the top surface of the water-soluble filler (2.3), and a separation net (2.6) is laid at the opening of the reserved wire duct (21) above the hydrolytic plastic film (2.5).

6. The pipeline leakage detection system in the utility tunnel according to claim 1, wherein For the wire (3), the length of each group of wires is 50-200 m.

7. The pipeline leakage detection system in the utility tunnel according to claim 1, wherein, The server (6) is also communicatively connected to the control center (7) and / or a mobile phone, and a control function APP is installed in the mobile phone.

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