Self-powered positioning and monitoring drainage device for subway tunnel water leakage disease

Abstract

The application discloses an autonomous energy supply positioning monitoring drainage device for subway tunnel water leakage diseases, which comprises an upper water collecting system, a middle water guiding system and a lower water wheel power generation drainage system. The upper water collecting system is quickly and stably adsorbed on the tunnel lining around the water leakage point through instant dissolving powder and a vacuum pump, water leakage flows through the water guiding system to impact the water turbine in the lower water wheel power generation drainage system, thereby supplying power for the instruments equipped with the device, and the water leakage finally flows into the urban sewer. The flow monitoring instrument, the BDS positioning instrument and the water level early warning instrument rely on a 5G communication unit to wirelessly transmit the monitoring data of the data acquisition box to mobile phones, computers and other terminals, so that the staff can realize real-time monitoring of the water leakage point at any position. The device utilizes the water leakage to impact the water turbine to supply power for the instruments and equipment autonomously, without the aid of external power equipment. The device fully embodies the characteristics of energy saving, environmental protection, convenience, safety, reliability and effectiveness.

Description

Technical Field

[0001] This invention belongs to the field of subway tunnel engineering technology, specifically relating to an autonomous power supply, positioning, monitoring and drainage device for subway tunnel leakage problems. Background Technology

[0002] In recent years, with the introduction of new urbanization plans, strengthening and improving urban transportation networks has become an urgent task. my country is gradually promoting the integrated rail transit network of urban agglomerations. Medium and large cities are currently planning to build and expand subway rail transit networks to cover most parts of the city as much as possible, thereby improving the efficiency of citizens' travel and boosting regional economic development.

[0003] Leakage is an unavoidable problem during the construction and operation of subway tunnels. Especially in seasonally frozen regions, during the transition from winter to spring and the summer flood season, groundwater or surface water enters the tunnel through leaks and surges, characterized by large volumes and wide areas of leakage. This problem will seriously affect the structural safety of the tunnel, the safety of internal communication and power lines, and the safe operation of trains. Therefore, if significant leakage occurs in the tunnel lining during operation, it is imperative to take timely and appropriate measures.

[0004] In existing technologies, when water leakage occurs in the lining of subway tunnels, the problem is solved by laying waterproof cloth on the top surface of the tunnel. However, the leaked water will remain inside the tunnel. At the same time, when faced with large-volume water leakage, the waterproof cloth has no rigid support and is prone to falling off, which poses a great safety hazard to subway construction and operation. Summary of the Invention

[0005] To address some of the shortcomings of the existing technology, this invention provides an autonomously powered, located, monitored, and drained device for addressing water leakage in subway tunnels. This invention can quickly seal large-flow leaks, guide the leaking water into the city's sewer system, and utilize the impact of the large-flow leaking water on a turbine to generate electricity for the device itself. Furthermore, it provides real-time monitoring and location of the leaking water flow, which is of great significance.

[0006] An autonomous power supply, positioning, monitoring, and drainage device for water leakage in subway tunnels includes an upper water collection system, a middle water diversion system, and a lower water turbine power generation and drainage system. The upper water collection system consists of an inner PC material funnel and an outer thin-walled soft rubber layer. A vacuum chamber is formed between the inner PC material funnel and the outer thin-walled soft rubber layer. The vacuum pump is connected to the vacuum chamber. The lower end of the upper water collection system is connected to the upper end of the middle water diversion system. A water-swellable sealing ring is provided at the connection.

[0007] The central water diversion system includes a PA nylon corrugated water diversion pipe, which is equipped with a BDS locator, a flow monitor, a data acquisition box, and a G communication unit. The lower end of the central water diversion system is connected to the inlet of the hydroelectric power generation drainage system.

[0008] The lower hydroelectric power generation and drainage system includes a spiral casing, generator, turbine, water level warning instrument, and power transmission pipeline network. The inlet of the hydropower generation drainage system is equipped with a filter plate, a slag removal port is set at the top of the inlet, a water distribution pipe is set at the bottom of the inlet, the end of the water distribution pipe is directly connected to the city sewer, and a baffle plate is set at the top of the inlet.

[0009] The aforementioned upper water collection system is made of an outer thin-walled soft rubber and an extended adhesive portion of quick-dissolving adhesive powder, which is adhered and fixed to the tunnel lining around the leakage point.

[0010] The working process of this invention: The vacuum pump of the upper water collection system evacuates the air from the vacuum chamber, and uses atmospheric pressure to allow the upper water collection system to be stably and reliably adsorbed onto the tunnel lining surface of the subway around the leak point. At the same time, the leaked water flows down the upper water collection system to the middle water diversion system.

[0011] The flow monitoring instrument installed in the central water diversion system monitors the amount of water leakage in the tunnel in real time, the BDS locator determines the location of the water leakage in the tunnel, and the data acquisition box collects the information from the two instruments and transmits the real-time monitoring data wirelessly to mobile phones, computers and other terminals through the G communication unit.

[0012] Water leakage in the subway tunnel impacts the turbine in the hydroelectric power generation and drainage system, causing it to rotate. This, in turn, generates electricity, which is then supplied to the vacuum pump, flow monitor, BDS locator, and water level early warning device via the power transmission network. This allows the invention to be fully self-powered without the need for external power.

[0013] The water level early warning instrument monitors the water level inside the volute in real time through a float ball, and then decides whether to open the baffle plate at the top of the water distribution pipe to ensure that the water level inside the volute is always lower than that of the generator, so that the generator can operate safely.

[0014] The filter plate inside the inlet of the hydropower generation drainage system is used to filter out large-diameter gravel carried in the leaking water. A slag removal port is set at the top to facilitate the removal of a large amount of accumulated gravel. When the water level warning instrument issues a warning signal, the water distribution pipe set at the bottom of the inlet of the hydropower generation drainage system is activated to discharge the leaking water.

[0015] The leaking water through the distribution pipe has already been filtered out by the filter plate to remove large-diameter gravel and impurities. Without going through the turbine to generate electricity, it is directly discharged into the city's sewer system.

[0016] The device of this invention is fully self-powered and capable of intelligent multi-functional real-time monitoring. It provides power to the vacuum pump, BDS locator, flow monitor and water level early warning instrument through the water turbine power generation and drainage system, and collects the monitoring data of the three instruments with positioning, monitoring and early warning functions through the data acquisition box. The real-time monitoring data is wirelessly transmitted to terminals such as mobile phones and computers through the 5G communication unit.

[0017] The upper water collection system consists of an inner PC material funnel and an outer thin-walled soft rubber layer. When the water collection system is first adhered to the subway tunnel lining around the leak point, the extended part of the outer thin-walled soft rubber is quickly bonded and fixed to the tunnel lining using quick-setting adhesive powder to form a certain strength. Then, the air in the vacuum cavity between the inner PC material funnel and the outer thin-walled soft rubber is evacuated using a vacuum pump. The outer thin-walled soft rubber then adheres to the outer wall of the inner funnel and the tunnel lining. Atmospheric pressure allows the upper water collection system to be firmly adsorbed onto the surface of the subway tunnel lining around the leak point. The lower end of the upper water collection system is connected to the water diversion system. A water-swellable sealing ring is installed at the connection. The sealing ring expands on its own to seal the gap between the two systems, preventing water from overflowing from the connection.

[0018] The water diversion pipes in the central water diversion system are made of PA nylon corrugated hoses, and are equipped with flow monitoring instruments to monitor the amount of water leakage in the tunnel in real time, thereby determining the location of the leakage. The BDS locator is used to locate the location of the leakage point and to provide route navigation for subsequent staff to enter the subway tunnel leakage point for on-site maintenance. The lower end of the water diversion system is connected to the water inlet of the hydroelectric power generation drainage system.

[0019] The lower hydroelectric power generation and drainage system includes a spiral casing, a turbine, a generator, a water level warning instrument, and a power transmission network. The leakage water impacts the turbine to rotate, causing the generator to generate electricity. The electricity is then supplied to the vacuum pump, flow monitor, BDS locator, and water level warning instrument through the power transmission network, achieving the effect of complete self-powered operation of the device.

[0020] The water level warning device monitors the water level inside the volute in real time by using a stainless steel float to determine whether to issue a warning signal. This, in turn, determines whether to open the baffle plate at the top of the water distribution pipe to reduce the flow of leaking water and ensure the normal and safe operation of the generator.

[0021] The inlet of the hydroelectric power generation drainage system is equipped with a filter plate, with a slag removal port at the top and a water distribution pipe at the bottom. The filter plate is used to filter out large-diameter gravel and debris carried in the leakage water to prevent damage to the turbine blades. The slag removal port at the top can be opened to remove large-diameter gravel and debris if it covers a large area above the filter plate and affects the downward flow of leakage water. When the leakage flow is too large, it triggers a warning signal from the water level warning instrument. The water distribution pipe at the lower end of the pipe is then used to drain the leakage water, thus diverting some of the leakage flow to the hydroelectric generator and preventing the water level in the spiral casing from becoming too high and flooding the generator at the top, which would affect the device's independent power generation.

[0022] The drainage system of the hydroelectric power generation is equipped with a baffle plate at the top of the water distribution pipe located below the water inlet. The tail end of the water distribution pipe is directly connected to the urban sewer system. When the water level warning instrument issues a warning signal, the baffle plate is opened to divert the leakage flow. The leakage water passing through the water distribution pipe has already been filtered by the filter plate to remove large-diameter gravel and impurities, preventing the leakage water from carrying large-diameter gravel and clogging the urban sewer system. Furthermore, the leakage water does not pass through the hydroelectric power generation turbine and is directly discharged into the urban sewer system.

[0023] The vacuum pump, flow monitor, BDS locator, and water level early warning instrument are all powered by the water turbine power generation and drainage system at the bottom. They also rely on the data acquisition box to collect real-time monitoring data and transmit the real-time monitoring data wirelessly to terminals such as mobile phones and computers through the 5G communication unit, so that staff can know the real-time situation of the leak at any time and make the next work deployment.

[0024] The inner layer of the upper water collection system uses a PC material funnel. PC engineering plastic not only has high strength and cold resistance, but is also extremely inexpensive. All of these properties meet the requirements of the device and the environment inside the subway tunnel in the seasonally frozen zone. The outer layer uses thin-walled soft rubber, which can act as a second layer to seal the water leakage when the inner funnel cracks. Its most important function is that when the vacuum pump is working and the vacuum chamber pressure is low compared to the outside, the atmospheric pressure is used to make the outer thin-walled soft rubber adhere to the outer wall of the inner funnel and the tunnel lining, so that the upper water collection system is firmly adsorbed on the tunnel lining surface around the leakage point.

[0025] The upper water collection system, consisting of an inner PC funnel and an outer thin-walled soft rubber layer, is first applied to the subway tunnel lining around the leak point. This fully utilizes the ability of quick-dissolving adhesive powder to dissolve rapidly in cold water and form a strong bond in a short time, allowing the upper water collection system to quickly adhere to the tunnel lining surface. At the same time, the quick-dissolving adhesive powder is non-toxic, odorless, easy to use, has a long shelf life, and requires only a small amount, making it a new type of green and environmentally friendly adhesive.

[0026] The water diversion pipes in the central water diversion system are made of PA nylon corrugated hoses, which have high toughness, high impact resistance, good bending performance, and chemical corrosion resistance. Due to their good bending performance, the water diversion pipes can be bent into any required shape for fixation, avoiding the impact on the normal construction and operation of the subway tunnel due to the inability to move or bend the water diversion pipes.

[0027] The vacuum pump, flow monitor, BDS locator, and water level early warning instrument are all continuously and autonomously powered by the hydroelectric power generation and drainage system, without the need for power equipment inside the tunnel.

[0028] The flow monitor, BDS locator, and water level early warning instrument collect real-time monitoring data through the data acquisition box, and then wirelessly transmit the monitoring data to terminals such as mobile phones and computers through the 5G communication unit.

[0029] The present invention has the following beneficial effects: 1. The present invention has a simple structure and is easy and quick to fix and install, making it easy for staff to successfully install the device in a short time.

[0030] 2. The upper water collection system of the present invention adheres to the tunnel lining surface by means of quick-dissolving adhesive powder and is adsorbed by atmospheric pressure, while the lower water turbine power generation and drainage system generates electricity by means of the water level difference impacting the water turbine. The principle is simple and easy to implement.

[0031] 3. This invention fully considers the unique environmental characteristics inside tunnels in seasonally frozen areas and the requirement to avoid affecting the normal operation of the subway due to excessive water leakage. It selects PC material funnel, thin-walled soft rubber and PA nylon material corrugated hose that meet the above conditions to maximize the function of the device.

[0032] 4. This invention has multiple functions such as positioning, monitoring, early warning, and data collection and transmission. The flow monitor monitors the amount of water leakage, the BDS locator determines the location of the leakage point to provide route navigation for subsequent personnel to enter the tunnel for maintenance and construction, and the water level early warning instrument monitors the water level in the spiral casing to ensure the normal operation of the generator. The real-time monitoring data of the above instruments is wirelessly transmitted to terminal devices such as mobile phones and computers on the ground through the 5G communication unit. Intelligent multi-functional real-time monitoring is integrated into the device of this invention. Personnel can rely on real-time monitoring data on the ground to judge the water leakage situation at any time and issue corresponding work instructions.

[0033] 5. The electrical energy required by this invention is entirely generated by the water turbine impacted by the water leakage in the subway tunnel, without the need for auxiliary power facilities in the tunnel. This device operates completely autonomously and avoids the safety hazards caused by the water leakage coming into contact with the power facilities in the tunnel, thus having an extremely high safety factor. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is an enlarged view of the upper water collection system of the present invention; Figure 3 This is an enlarged view of the lower turbine power generation and drainage system of the present invention. Figure 4 This is a partial enlarged view of point A in the water diversion system of the present invention; Figure 5 This is a partial enlarged view of section B of the hydroelectric power generation and drainage system of the present invention; Figure 6 This is a diagram showing the monitoring data transmission path of the present invention.

[0035] Among them: 1-Tunnel lining; 2-Leakage point; 3-Inner PC material funnel; 4-Outer thin-walled soft rubber; 5-Outer thin-walled soft rubber and quick-setting adhesive powder extended bonding part; 6-Vacuum chamber; 7-Vacuum pump; 8-Water-swellable sealing ring; 9-PA nylon corrugated water diversion pipe; 10-BDS locator; 11-Flow monitor; 12-Data acquisition box; 13-5G communication unit; 14-Power transmission network; 15-Slag removal port; 16-Gravel; 17-Water inlet of hydropower generation drainage system; 18-Filter plate; 19-Water baffle; 20-Water distribution pipe; 21-Vortex casing; 22-Water level warning instrument; 23-Generator; 24-Float ball; 25-Water turbine; 26-Urban sewer. Implementation

[0036] Please see Figures 1 to 5 As shown, an autonomous power supply positioning monitoring and drainage device for water leakage in subway tunnels includes an upper water collection system, a middle water diversion system and a lower water turbine power generation and drainage system. The upper water collection system consists of an inner PC material funnel 3 and an outer thin-walled soft rubber 4. A vacuum chamber 6 is formed between the inner PC material funnel 3 and the outer thin-walled soft rubber 4. A vacuum pump 7 is connected to the vacuum chamber 6. The lower end of the upper water collection system is connected to the upper end of the middle water diversion system. A water-expanding water-stop ring 8 is provided at the connection.

[0037] The central water diversion system includes a PA nylon corrugated water diversion pipe 9, which is equipped with a BDS locator 10, a flow monitor 11, a data acquisition box 12, and a 5G communication unit 13. The lower end of the central water diversion system is connected to the inlet 17 of the hydroelectric power generation drainage system.

[0038] The lower hydroelectric power generation and drainage system includes a spiral casing 21, a generator 23, a turbine 25, a water level warning instrument 22, and a power transmission pipeline network 14. The inlet 17 of the hydropower generation drainage system is equipped with a filter plate 18. The upper part of the inlet 17 is equipped with a slag removal port 15. The lower part of the inlet 17 is equipped with a water distribution pipe 20. The tail end of the water distribution pipe 20 is directly connected to the urban sewer 26. The top of the inlet 17 is equipped with a baffle plate 19.

[0039] The upper water collection system is attached and fixed to the tunnel lining 1 around the leakage point 2 by the outer thin-walled soft rubber and the quick-dissolving adhesive powder extension bonding part 5.

[0040] like Figures 1 to 6 As shown, the working process of this invention is as follows: The vacuum pump 7 of the upper water collection system evacuates the air from the vacuum chamber 6, and uses atmospheric pressure to allow the upper water collection system to be stably and reliably adsorbed onto the surface of the subway tunnel lining 1 around the leakage point 2. At the same time, the leaking water flows down the upper water collection system to the middle water diversion system.

[0041] The flow monitoring instrument 11 installed in the central water diversion system monitors the amount of water leakage in the tunnel in real time, the BDS locator 10 determines the location of the water leakage in the tunnel, and the data acquisition box 12 collects the information from the two instruments and wirelessly transmits the real-time monitoring data to terminals such as mobile phones and computers through the 5G communication unit 13.

[0042] The leakage of water in the subway tunnel impacts the rotation of the turbine 25 in the water turbine power generation and drainage system, which in turn generates electricity through the generator 23. The electricity is then supplied to the vacuum pump 7, flow monitor 11, BDS locator 10, and water level early warning instrument 22 via the power transmission network 14, enabling the invention to be fully self-powered without the need for external power.

[0043] The water level early warning instrument 22 monitors the water level in the volute 21 in real time through the float 24, and then decides whether to open the baffle 19 at the top of the water distribution pipe 20 to ensure that the water level in the volute 21 is always lower than that of the generator 23, so that the generator 23 can work safely.

[0044] The filter plate 18 inside the inlet 17 of the hydropower generation drainage system is used to filter out large-diameter gravel 16 carried in the leaking water. The upper end is provided with a slag removal port 15 to facilitate the removal of a large amount of accumulated gravel 16. When the water level warning instrument 22 issues a warning signal, the water distribution pipe 20 set at the lower part of the inlet 17 of the hydropower generation drainage system is activated to discharge the leaking water.

[0045] The leaking water through the water distribution pipe 20 has been filtered out by the filter plate 18, removing large-diameter gravel 16 impurities. Without being used by the water turbine 25 to generate electricity, it is directly discharged into the city sewer 26.

[0046] The device of this invention is fully self-powered and capable of intelligent multi-functional real-time monitoring. It provides power to the vacuum pump 7, BDS locator 10, flow monitor 11 and water level early warning instrument 22 through a water turbine power generation and drainage system. It also relies on the data acquisition box 12 to collect monitoring data from the three instruments with positioning, monitoring and early warning functions, and wirelessly transmits the real-time monitoring data to terminals such as mobile phones and computers through the 5G communication unit 13.

Claims

1. A self-powered, positioning, monitoring, and drainage device for addressing water leakage issues in subway tunnels, characterized in that: It includes an upper water collection system, a middle water diversion system, and a lower turbine power generation and drainage system; The upper water collection system is composed of an inner PC material funnel (3) and an outer thin-walled soft rubber (4). A vacuum chamber (6) is formed between the inner PC material funnel (3) and the outer thin-walled soft rubber (4). The vacuum pump (7) is connected to the vacuum chamber (6). The lower end of the upper water collection system is connected to the upper end of the middle water diversion system. A water-swellable sealing ring (8) is provided at the connection. The central water diversion system includes a PA nylon corrugated water diversion pipe (9), which is equipped with a BDS locator (10), a flow monitor (11), a data acquisition box (12) and a 5G communication unit (13). The lower end of the central water diversion system is connected to the inlet (17) of the hydropower generation drainage system. The lower hydropower generation and drainage system includes a spiral casing (21), a generator (23), a turbine (25), a water level warning instrument (22), and an electric power transmission pipeline (14). The inlet (17) of the hydropower generation and drainage system is equipped with a filter plate (18). A slag removal port (15) is set at the top of the inlet (17). A water distribution pipe (20) is set at the bottom of the inlet (17). The tail end of the water distribution pipe (20) is directly connected to the urban sewer (26). A baffle plate (19) is set at the top of the inlet (17).

2. The autonomously powered, positioning, monitoring, and drainage device for addressing water leakage in subway tunnels according to claim 1, characterized in that: The upper water collection system is attached and fixed to the tunnel lining (1) around the leakage point (2) by the outer thin-walled soft rubber and quick-dissolving adhesive powder extension bonding part (5).

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