Tunnel integrated drainage device with emergency power supply
By introducing an emergency power supply and a multi-stage filtration system into the tunnel drainage system, combined with an automatic cleaning device, the problems of power outages and pipeline blockages were solved, thus achieving the reliability and efficiency of the tunnel drainage system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SINOHYDRO BUREAU 8 CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-06-02
AI Technical Summary
Existing tunnel drainage systems are prone to power outages due to grid fluctuations, and are also susceptible to pipe blockages in environments with mixed impurities, affecting drainage efficiency and increasing maintenance costs.
Design an integrated pumping and drainage device with an emergency power supply. The device uses a main power supply and an emergency power supply to work together. It combines a filter frame and a screen for multi-stage filtration and uses an electric push rod to drive a scraper and a pusher to automatically clean up impurities.
Ensure the drainage system continues to operate even in the event of power outages, prevent pipe blockages, reduce equipment failures and maintenance frequency, and improve drainage efficiency and safety.
Smart Images

Figure CN224315041U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tunnel drainage technology, and in particular to an integrated tunnel pumping and drainage device with emergency power supply. Background Technology
[0002] In the construction and operation of tunnels such as water conservancy projects, traffic tunnels, and mine roadways, drainage of accumulated water within the tunnel is a crucial aspect of ensuring project safety and progress. Due to the unique environment of tunnels, water often accumulates due to groundwater seepage, construction water use, or natural precipitation. If drainage is not timely, it can easily lead to problems such as rock instability, structural damage, equipment malfunction, and even safety accidents.
[0003] Existing tunnel drainage systems mostly rely on a single power source. In complex construction environments, power outages due to grid fluctuations or line faults can cause sudden shutdowns of the drainage system, leading to rapid water accumulation and seriously threatening construction safety and project progress. Furthermore, tunnel water often contains impurities such as mud, rocks, and construction waste. Existing drainage systems only have a single top filter frame to filter these impurities. When the water enters the drainage channel for subsequent discharge, pipe blockages easily occur, requiring frequent shutdowns for cleaning. This not only affects drainage efficiency but also increases maintenance costs and labor intensity.
[0004] Therefore, developing a drainage device with reliable power supply and high-efficiency filtration, tailored to the special environment of tunnels, has become an urgent need to address the shortcomings of existing technologies and improve the safety and economy of tunnel drainage. Utility Model Content
[0005] To overcome the aforementioned drawbacks, this utility model provides an integrated tunnel pumping and drainage device with an emergency power supply.
[0006] The technical solution is as follows: an integrated drainage device for tunnels with an emergency power supply, comprising a main power supply, a controller, an emergency power supply, a water channel, a filter frame, a channel pipe, a screen, and drainage components. Water channels are embedded along the length of both sides of the bottom of the tunnel, and a filter frame is mounted on the top of the water channel. Several water inlet grooves are spaced apart along the length of the filter frame. The water channels on both sides are connected by a channel pipe embedded in the tunnel structure. The main power supply and the controller are fixedly installed on the right wall of the tunnel. The main power supply is electrically connected to the controller. An emergency power supply is installed below the controller inside the tunnel. The emergency power supply is interconnected with the controller through a bidirectional circuit. The screen is obliquely arranged inside the front side of the right water channel and located in front of the channel pipe interface. Drainage components are provided inside the tunnel.
[0007] Furthermore, a 2-3mm thick epoxy resin anti-corrosion layer is laid on the inner wall of the canal.
[0008] Furthermore, the drainage components include a pumping pipe, a water pump, and a connecting pipe. A water pump is installed on the front side of the right wall inside the tunnel. A pumping pipe is installed at the bottom inlet of the water pump. The end of the pumping pipe away from the water pump passes through the right-side filter frame and connects to the inside of the right-side water channel. A connecting pipe is installed on the right wall inside the tunnel through a fastener. The top outlet of the water pump is connected to the front end of the connecting pipe. The rear end of the connecting pipe extends to the outside of the tunnel. The water pump is electrically connected to the controller and is powered by the main power supply or emergency power supply.
[0009] Furthermore, it also includes a frame, a top plate, a first electric push rod, and a scraper plate. The frame is embedded in the bottom of the tunnel near the screen, and the top plate is detachably installed on the top of the frame. The first electric push rod is installed on the left side of the frame through a protective shell. The telescopic rod of the first electric push rod passes through the inside of the frame and is fixed to the scraper plate. The scraper plate passes through the inside of the right water channel and fits against the rear side of the screen. The first electric push rod is electrically connected to the controller and is powered by the main power supply or emergency power supply.
[0010] Furthermore, the scraping surface of the scraper is fitted with polytetrafluoroethylene wear-resistant strips.
[0011] Furthermore, it also includes a second electric push rod and a push plate. The second electric push rod is installed on the rear side of the frame through a protective shell. The push plate is fixedly connected to the telescopic rod end of the second electric push rod. A through hole adapted to the size of the push plate is opened on the rear side of the frame. The push plate slides in fit with the through hole. The second electric push rod is electrically connected to the controller. The second electric push rod is powered by the main power supply or the emergency power supply.
[0012] The beneficial effects are: 1. The main power supply and emergency power supply work together and can automatically switch when the main power supply is abnormal, ensuring the continuous operation of the drainage system and improving the reliability and safety of tunnel drainage.
[0013] 2. The filter frame intercepts large impurities, and the screen performs secondary fine filtration, effectively preventing pipeline blockage, reducing the probability of equipment failure, and lowering maintenance frequency and costs.
[0014] 3. The first electric push rod drives the scraper plate to clean impurities on the screen surface, and the second electric push rod drives the push plate to collect the impurities. This eliminates the need for frequent manual intervention, automates the impurity cleaning process, and improves the operating efficiency of the device. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a cross-sectional view of the tunnel component of this utility model;
[0017] Figure 3 This is a cross-sectional view of the water channel and filter frame components of this utility model;
[0018] Figure 4 This is a cross-sectional view of the water channel and frame components of this utility model;
[0019] Figure 5 This is a cross-sectional view of the frame and top plate components of this utility model.
[0020] Component names and serial numbers in the diagram: 1_Tunnel, 2_Main power supply, 3_Controller, 4_Emergency power supply, 5_Water channel, 6_Filter frame, 7_Channel pipe, 8_Pumping pipe, 9_Water pump, 10_Connecting pipe, 11_Screen, 12_Frame, 13_Top plate, 14_First electric push rod, 15_Scraper plate, 16_Second electric push rod, 17_Push plate. Detailed Implementation
[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings.
[0022] Example: An integrated pumping and drainage device for tunnels with emergency power supply, such as... Figures 1-3 As shown, the system includes a main power supply 2, a controller 3, an emergency power supply 4, a water channel 5, a filter frame 6, a channel pipe 7, a screen 11, and a drainage assembly. Water channels 5 are embedded along the length of the bottom left and right sides of the tunnel 1. A filter frame 6 is detachably mounted on the top of the water channel 5. Several inlet grooves are spaced along the length of the filter frame 6. Water accumulated in the tunnel 1 flows into the water channel 5 through these inlet grooves. The filter frame 6 can intercept large-diameter impurities. A 2-3mm thick epoxy resin anti-corrosion layer is laid on the inner wall of the water channel 5 to prevent erosion by sand-laden water. The left and right water channels 5 are hydraulically connected through channel pipes 7 pre-embedded within the tunnel 1 structure. 1. A main power supply 2 is bolted to the right wall. A controller 3 is bolted to the rear of the main power supply 2 inside the tunnel 1. The main power supply 2 is electrically connected to the controller 3. An emergency power supply 4 is bolted to the lower part of the controller 3 inside the tunnel 1. The emergency power supply 4 is interconnected with the controller 3 through a bidirectional circuit. The controller 3 monitors the voltage and load status of the main power supply 2 in real time. When the main power supply 2 fails, it automatically switches to the emergency power supply 4 power supply mode. The screen 11 is obliquely set inside the front of the right water channel 5 and is located in front of the channel pipe 7 interface. It performs secondary fine filtration on the water that is about to enter the pumping pipe 8. A drainage component is installed inside the tunnel 1.
[0023] like Figure 1 and Figure 3As shown, the drainage assembly includes a pumping pipe 8, a water pump 9, and a connecting pipe 10. The water pump 9 is installed on the front side of the right wall inside the tunnel 1 via a mounting base. The water pump 9 has a pumping pipe 8 installed at its bottom inlet end. The end of the pumping pipe 8 away from the water pump 9 passes through the right filter frame 6 and connects to the inside of the right water channel 5. The connecting pipe 10 is horizontally installed on the right wall inside the tunnel 1 via a fixing device. The top outlet end of the water pump 9 is connected to the front end of the connecting pipe 10. The rear end of the connecting pipe 10 extends to the outside of the tunnel 1 to achieve drainage of accumulated water. The water pump 9 is electrically connected to the controller 3 and is powered by the main power supply 2 or the emergency power supply 4.
[0024] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, it also includes a frame 12, a top plate 13, a first electric push rod 14, a scraper plate 15, a second electric push rod 16, and a pusher plate 17. The frame 12 is embedded in the bottom of the tunnel 1 near the screen 11. The top plate 13 is detachably installed on the top of the frame 12. The first electric push rod 14 is installed on the left side of the frame 12 via protective shell bolts. The first electric push rod 14 is embedded inside the tunnel 1 structure. The telescopic rod of the first electric push rod 14 extends into the frame 12 and is fixedly connected to the scraper plate 15. The scraper plate 15 has a square frame structure and extends into the right-side water channel 5, fitting against the rear side of the screen 11. The scraping surface of the screen 15 is fitted with a polytetrafluoroethylene wear-resistant strip to reduce wear on the screen 11. A second electric push rod 16 is installed on the rear side of the frame 12 by a protective shell bolt. The second electric push rod 16 is embedded inside the structure of the tunnel 1. The end of the telescopic rod of the second electric push rod 16 is fixedly connected to a push plate 17. A through hole adapted to the size of the push plate 17 is opened on the rear side of the frame 12. The push plate 17 slides in the through hole. The inner circumferential contour of the push plate 15 is adapted to the push plate 15. The first electric push rod 14 and the second electric push rod 16 are both electrically connected to the controller 3. The first electric push rod 14 and the second electric push rod 16 are powered by the main power supply 2 or the emergency power supply 4.
[0025] Water accumulated inside tunnel 1 flows into the double-sided water channels 5 through the inlet trough of filter frame 6, completing primary solid-liquid separation. The water levels in the left and right water channels 5 are balanced through channel pipe 7. In case of excessive water accumulation, the water pump 9 is activated by controller 3. Water in the right water channel 5 is filtered twice through screen 11 and then pumped out through the suction pipe 8 before being discharged outside tunnel 1 through connecting pipe 10. Water on the left side is replenished to the right water channel 5 through channel pipe 7 and discharged simultaneously. Controller 3 continuously monitors the output voltage of main power supply 2. When the voltage drops below 85% of the rated value or a power outage occurs, controller 3 automatically switches to emergency power supply 4 to ensure the continuous operation of the drainage system. Screen 11 is used for long-term maintenance. When filtration causes a decrease in throughput, controller 3 executes a cleaning command. Controller 3 activates the first electric push rod 14, whose telescopic rod retracts to drive the scraper plate 15 to move horizontally along the left side, scraping the impurities attached to the surface of the screen 11 into the frame 12. Then, the second electric push rod 16 is activated, whose telescopic rod extends to drive the push plate 17 to move horizontally along the front side, pushing the impurities trapped on the inner circumference of the scraper plate 15 to the front of the frame 12. After cleaning is completed, the second electric push rod 16 drives the push plate 17 to reset, and the first electric push rod 14 drives the scraper plate 15 to reset. Maintenance personnel can clean the impurities collected in the frame 12 by disassembling the top plate 13.
Claims
1. An integrated tunnel pumping and drainage device with emergency power supply, characterized in that, The system includes a main power supply (2), a controller (3), an emergency power supply (4), a water channel (5), a filter frame (6), a channel pipe (7), a screen (11), and a drainage component. Water channels (5) are embedded in the bottom sides of the tunnel (1) along the length direction. A filter frame (6) is installed on the top of the water channel (5). Several water inlet grooves are spaced apart along the length direction of the filter frame (6). The water channels (5) on both sides are connected by a channel pipe (7) embedded in the structure of the tunnel (1). The main power supply (2) and the controller (3) are fixed on the right wall of the tunnel (1). The main power supply (2) is electrically connected to the controller (3). An emergency power supply (4) is installed in the tunnel (1) below the controller (3). The emergency power supply (4) is interconnected with the controller (3) through a bidirectional circuit. The screen (11) is obliquely located in front of the right water channel (5) and in front of the interface of the channel pipe (7). A drainage component is provided in the tunnel (1).
2. The integrated tunnel pumping and drainage device with emergency power supply according to claim 1, characterized in that, The inner wall of the water channel (5) is covered with a 2-3mm thick epoxy resin anti-corrosion layer.
3. The integrated tunnel pumping and drainage device with emergency power supply according to claim 2, characterized in that, The drainage assembly includes a pumping pipe (8), a water pump (9), and a connecting pipe (10). The water pump (9) is installed on the front side of the right wall inside the tunnel (1). The pumping pipe (8) is installed at the bottom inlet of the water pump (9). The end of the pumping pipe (8) away from the water pump (9) passes through the right filter frame (6) and is connected to the inside of the right water channel (5). The connecting pipe (10) is installed on the right wall inside the tunnel (1) through a fastener. The top outlet of the water pump (9) is connected to the front end of the connecting pipe (10). The rear end of the connecting pipe (10) extends to the outside of the tunnel (1). The water pump (9) is electrically connected to the controller (3). The water pump (9) is powered by the main power supply (2) or the emergency power supply (4).
4. The integrated tunnel pumping and drainage device with emergency power supply according to claim 3, characterized in that, It also includes a frame (12), a top plate (13), a first electric push rod (14) and a scraper plate (15). The frame (12) is embedded in the bottom of the tunnel (1) near the screen (11). The top plate (13) is detachably installed on the top of the frame (12). The first electric push rod (14) is installed on the left side of the frame (12) through a protective shell. The telescopic rod of the first electric push rod (14) passes through the inside of the frame (12) and is fixed to the scraper plate (15). The scraper plate (15) passes through the inside of the right water channel (5) and is attached to the rear side of the screen (11). The first electric push rod (14) is electrically connected to the controller (3). The first electric push rod (14) is powered by the main power supply (2) or the emergency power supply (4).
5. The integrated tunnel pumping and drainage device with emergency power supply according to claim 4, characterized in that, The scraping surface of the scraper (15) is fitted with a wear-resistant polytetrafluoroethylene strip.
6. The integrated tunnel pumping and drainage device with emergency power supply according to claim 5, characterized in that, It also includes a second electric push rod (16) and a push plate (17). The second electric push rod (16) is installed on the rear side of the frame (12) through a protective shell. The push plate (17) is fixedly connected to the telescopic rod end of the second electric push rod (16). A through hole adapted to the size of the push plate (17) is opened on the rear side of the frame (12). The push plate (17) slides with the through hole. The second electric push rod (16) is electrically connected to the controller (3). The second electric push rod (16) is powered by the main power supply (2) or the emergency power supply (4).