A device for detecting blockage, leakage and illegal discharge of a simulated rainwater pipe network

Abstract

The utility model provides a kind of detection device of simulating rainwater pipe network blockage leakage and steal discharge, including water tank, first inspection well and shunt well connected in turn by pipeline;Shunt well has two outlets, one of which is sequentially connected with second inspection well and clean water reflux cylinder by pipeline;Another outlet is connected with sewage reflux cylinder by pipeline;Sewage reflux cylinder is provided on second pipeline;First inspection well is equipped with first liquid level meter;Second liquid level meter and electric conductivity tester are installed in shunt well;Third liquid level meter is installed in second inspection well.Real-time simulation rainwater pipe network blockage, leakage and steal discharge condition, and from instrument data change corresponding, to form rainwater pipe network blockage, leakage and steal discharge determination basis;So, corresponding instrument is installed in pipe network in reality, and the state of pipe network can be immediately judged by this determination basis, when blockage, leakage or steal discharge phenomenon occurs, immediate repair can be carried out, to avoid consequence expansion.

Description

Technical Field

[0001] This utility model relates to the field of urban stormwater pipe network technology, specifically a detection device for simulating stormwater pipe network blockage, leakage, and illegal discharge. Background Technology

[0002] As a crucial component of urban drainage systems, the operational status of urban stormwater drainage networks directly impacts urban flood control and drainage capabilities, as well as water environment safety. However, existing stormwater drainage networks commonly suffer from blockages, unauthorized discharges, and leaks. These issues typically don't cause immediate noticeable damage, often requiring a period of development. Only when problems accumulate to a certain extent and produce consequences such as significant flooding or water quality deterioration are they detected and repaired. This delayed detection process prevents timely resolution of problems, leading to escalating losses.

[0003] Existing detection methods are mostly based on periodic inspections or sampling tests of specific areas, which cannot achieve real-time and comprehensive monitoring of stormwater pipe networks. Moreover, the above-mentioned problems do not occur continuously in real time, but are sudden and uncertain. Traditional detection methods have difficulty capturing the moment the problem occurs, making it difficult to accurately determine the location, extent, and cause of the problem, which brings great inconvenience to the maintenance and management of the pipe network. Utility Model Content

[0004] To address the technical problems in the background art, this utility model discloses a detection device for simulating rainwater pipe network blockage, leakage, and illegal discharge.

[0005] This utility model provides a detection device for simulating rainwater pipe network blockage, leakage and illegal discharge, including a water tank, a first inspection well and a diversion well connected in sequence by pipes;

[0006] The diversion well has two outlets. One outlet is connected to a second inspection well and a clean water return cylinder via a pipe. The other outlet is connected to a sewage return cylinder via a pipe.

[0007] The water in the tank flows downstream into the first inspection well, the diversion well, the second inspection well, the clean water return cylinder, and the sewage return cylinder;

[0008] The water in the tank is used to simulate rainwater;

[0009] The clear water return tube is used to simulate a river channel;

[0010] Wastewater return tubes are used to simulate wastewater treatment plants;

[0011] A first valve is installed at one of the outlets of the diversion well, and the first valve can also simulate the blockage of the first pipeline by being in a half-open state.

[0012] A second valve is installed at the other outlet of the diversion well;

[0013] The first level gauge is installed in the first inspection well;

[0014] A second level gauge and a conductivity meter are installed inside the diversion well;

[0015] A third level gauge is installed in the second inspection well.

[0016] When the liquid level in the first inspection well rises and the liquid level in the third inspection well falls, and the rates of change of the first and third level gauges are different, it can be determined that the pipeline is blocked; when the liquid level in the first inspection well remains unchanged and the liquid level in the third inspection well decreases, it can be determined that the pipeline is leaking; when the data of the conductivity meter 13 rises rapidly, it can be determined that the pipeline is illegally discharging water. The beneficial effect of the above settings is that they can simulate the blockage, leakage, and illegal discharge of rainwater pipe network in real time, and correspond to the changes in instrument data, thereby forming a basis for judging the blockage, leakage, and illegal discharge of rainwater pipe network. In this way, by installing the corresponding instruments in the actual pipe network, the status of the pipe network can be judged immediately through this judgment basis. When blockage, leakage, or illegal discharge occurs, repairs can be carried out immediately to avoid the consequences from escalating.

[0017] Since this device is a simulation device, when testing for blockages and leaks, it is necessary to continuously add water to the water tank and drain the clean water return cylinder, which will waste water resources. Based on this, a further improvement is made: a return pipe and a water pump are connected between the water tank and the clean water return cylinder; the water pump transfers the water in the clean water return cylinder to the water tank. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a top view of the present invention;

[0021] In the diagram: 1. Water tank; 2. First inspection well; 3. Diversion well; 4. First pipeline; 5. Second pipeline; 6. Second inspection well; 7. Clean water return cylinder; 8. Sewage return cylinder; 9. First valve; 10. Second valve; 11. First level gauge; 12. Second level gauge; 13. Conductivity tester; 14. Third level gauge; 15. Return pipe; 16. Water pump; 17. Third pipeline; 18. Fourth pipeline; 19. Fifth pipeline. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0023] like Figure 1 and Figure 2 As shown, this utility model discloses a detection device for simulating rainwater pipe network blockage, leakage, and illegal discharge, including a water tank 1, a first inspection well 2, a diversion well 3, a second inspection well 6, a clean water return cylinder 7, and a sewage return cylinder 8. The outlet of the water tank 1 is connected to the inlet of the first inspection well 2 via a first pipe 4, and the outlet of the first inspection well 2 is connected to the inlet of the diversion well 3 via a second pipe 5. The diversion well 3 has two outlets, one of which is connected to the inlet of the second inspection well 6 via a third pipe 17, and the outlet of the second inspection well 6 is connected to the inlet of the clean water return cylinder 7 via a fourth pipe 18. The other outlet of the diversion well 3 is connected to the inlet of the sewage return cylinder 8 via a fifth pipe 19.

[0024] The water in tank 1 is used to simulate rainwater; the clean water return cylinder 7 is used to simulate a river; and the sewage return cylinder 8 is used to simulate a sewage treatment plant. The water in tank 1 flows downstream into the first inspection well 2, the diversion well 3, the second inspection well 6, the clean water return cylinder 7, and the sewage return cylinder 8 under the influence of the principle of communicating vessels and gravity.

[0025] A first valve 9 is installed at the outlet of the diversion well 3 connecting to the third pipeline 17. The first valve 9 is used to control the connection and disconnection between the diversion well 3 and the third pipeline 17. When the first valve 9 is in a half-open state, it simulates the blockage state of the pipeline network. A second valve 10 is installed at the outlet of the diversion well 3 connecting to the fifth pipeline 19. The second valve 10 is used to control the connection and disconnection between the diversion well 3 and the fifth pipeline 19.

[0026] A first level gauge 11 is installed in the first inspection well 2 to detect the liquid level in the first inspection well 2. A second level gauge 12 and a conductivity meter 13 are installed in the diversion well 3; the second level gauge 12 is used to detect the liquid level in the diversion well 3, and the conductivity meter 13 is used to detect the conductivity of the water in the pipe network. A third level gauge 14 is installed in the second inspection well 6 to detect the liquid level in the second inspection well 6. The first valve 9 and the second valve 10 are both electric gate valves, and the conductivity meter is electrically connected to the first valve 9 and the second valve 10, which can control the opening and closing of the first valve 9 and the second valve 10.

[0027] A return pipe 15 and a water pump 16 are connected between the water tank 1 and the clean water return cylinder 7; the water pump 16 transfers water from the clean water return cylinder 7 to the water tank 1. With this configuration, when testing for blockages or leaks, the water in the water tank 1 can be recycled to save water resources.

[0028] This embodiment has the following four test modes:

[0029] 1. With the first valve 9 fully open and the second valve 10 closed, the network is operating normally, and the data read from the first level gauge 11 and the third level gauge 14 are consistent. Therefore, if the first level gauge 11 and the third level gauge 14 are installed in the actual network and their data remain consistent, it can be determined that the rainwater network is operating normally.

[0030] 2. The first valve 9 is in a semi-open state, and the second valve 10 is in a closed state to simulate a blockage in the rainwater pipe network. At this time, the reading on the first level gauge 11 rises, while the reading on the third level gauge 14 falls, and the rates of change of these two level gauges are inconsistent. Therefore, if a real rainwater pipe network exhibits this phenomenon—a rise in the reading on the first level gauge 11 and a fall in the reading on the third level gauge 14, with inconsistent rates of change—it can be determined that a blockage has occurred in the pipe network. Furthermore, the location of the blockage can be quickly determined based on the position of the third level gauge 14.

[0031] 3. The first valve 9 is fully open, and the second valve 10 is open to simulate a leak in the rainwater pipe network. At this time, the reading on the first level gauge 11 remains unchanged, while the reading on the third level gauge 14 decreases. Therefore, if a real rainwater pipe network exhibits this phenomenon—the reading on the first level gauge 11 remains unchanged while the reading on the third level gauge 14 decreases—a leak can be identified. Furthermore, the location of the leak can be quickly determined based on the position of the third level gauge 14.

[0032] 4. The first valve 9 is in a half-open state, the second valve 10 is in a closed state, and the water pump 16 is also in a closed state. The purpose of this setting is to reduce the water flow and save water when testing for illegal discharge. High-concentration water is added to the diversion well 3. At this time, the data on the conductivity meter 13 increases rapidly. Thus, the conductivity meter 13 is installed in the actual rainwater pipe network. If the data of the conductivity meter 13 increases rapidly, it can be determined that there is illegal discharge in the pipe network. The device in this embodiment is installed in the Yangtze River Delta region, where the conductivity of rainwater is in the range of 60-280 μs / cm; the conductivity of normal domestic sewage is higher, between 500-1000 μs / cm; and the conductivity of industrial wastewater is generally above 1000 μs / cm. Therefore, when the data detected by the conductivity meter 13 reaches 500 μs / cm, it can be determined that there is illegal discharge in the pipe network. Moreover, the location of the illegal discharge can be quickly found based on the location of the conductivity meter 13.

[0033] Furthermore, in this embodiment, when the conductivity meter 13 detects a value of 500 μs / cm, it immediately controls the first valve 9 to close and the second valve 10 to open, discharging the sewage into the sewage return cylinder 8. Applying this design to a real-world stormwater drainage network allows for the automatic discharge of sewage into a wastewater treatment plant, preventing river pollution.

[0034] The advantage of this embodiment is that it can simulate the blockage, leakage, and illegal discharge of rainwater pipe network in real time, and correspond to the changes in instrument data, thereby forming a basis for judging the blockage, leakage, and illegal discharge of rainwater pipe network. In this way, by installing the corresponding instruments in the actual pipe network, the status of the pipe network can be judged immediately through this judgment basis. When blockage, leakage, or illegal discharge occurs, repairs can be carried out immediately to avoid the consequences from escalating.

[0035] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A detection device for simulating rainwater pipe network blockage, leakage, and illegal discharge, characterized in that: It includes a water tank (1), a first inspection well (2), and a diversion well (3) connected in sequence by pipes; The diversion well (3) has two outlets. One outlet is connected to the second inspection well (6) and the clean water return cylinder (7) in sequence via a pipe. The other outlet is connected to the sewage return cylinder (8) via a pipe. The water in the water tank (1) flows downstream into the first inspection well (2), the diversion well (3), the second inspection well (6), the clean water return cylinder (7), and the sewage return cylinder (8); The water in the water tank (1) is used to simulate rainwater; The clear water return tube (7) is used to simulate a river channel; The wastewater return tube (8) is used to simulate a wastewater treatment plant; A first valve (9) is provided at one of the outlets of the diversion well (3), and the first valve (9) also simulates the blockage of the first pipeline (4) by being in a half-open state; A second valve (10) is provided at the other outlet of the diversion well (3); The first inspection well (2) is equipped with a first level gauge (11); The diversion well (3) is equipped with a second level gauge (12) and a conductivity meter (13); A third level gauge (14) is installed in the second inspection well (6).

2. The detection device for simulating rainwater pipe network blockage, leakage, and illegal discharge according to claim 1, characterized in that: A return pipe (15) and a water pump (16) are also connected between the water tank (1) and the clean water return cylinder (7); The water pump (16) transfers the water in the clean water return cylinder (7) to the water tank (1).

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