Simulation test device for built-in drain tank of tunnel

Abstract

The utility model belongs to the technical field of civil engineering, and particularly relates to a tunnel built-in drain tank simulation test device which comprises a supporting frame. The top of the support frame is fixedly connected with an upper water tank; the bottom of the support frame is fixedly connected with a lower water tank; water in the upper test pool and the lower test pool can be recycled, waste of water resources due to test is avoided, procedures are improved, water level comparison is performed after delay Td is added to the real-time water level, so that a water pump or water level alarm can be started only after the water level is determined to be stable but not suddenly changed, and false operation of the water pump and false water level alarm are avoided. The touch screen displays the water level of the pool in real time and is clear, the key operation on the touch screen is simple and clear, the water level alarm information is clear, the test can be operated flexibly, automatic control and manual control can be switched on the touch screen, compared with tunnel field test, the operation is simple, the cost is saved, and the personal safety of test personnel can be guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of civil engineering technology, specifically a simulation test device for a tunnel built-in drainage pool. Background Technology

[0002] Internal drainage tanks in tunnels are facilities used to collect and discharge groundwater in tunnel engineering. They are typically located in low-lying areas or areas prone to water accumulation within the tunnel, thus preventing water accumulation from affecting the tunnel structure and traffic safety. Drainage tank simulation tests verify whether the drainage tanks can effectively and promptly remove water accumulated within the tunnel by simulating different hydrological conditions, playing a crucial role in ensuring tunnel safety.

[0003] Through long-term observation, existing test devices for simulating tunnel drainage conditions have found that pumps are started sequentially according to the water level in the test pool. The pumps are started immediately when the water level reaches the starting level, without considering whether the water level is stable. If the water level is not stable, starting the pumps directly can easily lead to pump malfunctions. Therefore, a tunnel built-in drainage pool simulation test device is proposed to address the above problems. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology and solve the technical problems mentioned in the background technology, this utility model proposes a simulation test device for a tunnel built-in drainage pool.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A tunnel-embedded drainage pool simulation test device of this utility model includes a support frame; an upper water pool is fixedly connected to the top of the support frame; a lower water pool is fixedly connected to the bottom of the support frame; multiple drainage pumps are installed at the bottom of the lower water pool; a connecting water pipe is fixedly connected to the top of the drainage pump, and the other end of the connecting water pipe is fixedly connected to the side wall of the upper water pool; a drainage pipe is fixedly connected to the side wall of the upper water pool, and the other end of the drainage pipe is fixedly connected to the side wall of the lower water pool; a support frame is installed at the bottom of the lower water pool; a liquid level sensor is fixedly connected to the bottom of the lower water pool; an electrical control system is installed outside the lower water pool, and the electrical control system and the drainage pipe are offset; the electrical control system is internally... The unit includes a programmable controller, an A / D module (analog-to-digital converter), intermediate relays, contactors, a computer, a touch screen, and a water level alarm. The programmable controller and the A / D module are connected via signal connections; the A / D module and the water level sensor are connected via signal connections; the programmable controller and the intermediate relays are connected via signal connections; the intermediate relays and the contactors are connected via signal connections; the programmable controller and the computer are connected via signal connections; the programmable controller and the touch screen are connected via signal connections; the programmable controller and the water level alarm are connected via signal connections; and the contactors and the drainage pump are connected via signal connections.

[0006] Preferably, a water pump is fixedly connected to the inner wall of the drain tank; a water pipe is fixedly connected to the input end of the water pump, and the water pipe is fixedly connected to the bottom wall of the drain tank; multiple diversion pipes are fixedly connected to the middle of the water pipe, and the multiple diversion pipes are connected to the water pipe; a first drain pipe is fixedly connected to the output end of the water pump; a housing is fixedly connected to the end of the first drain pipe, and the first drain pipe is connected to the housing; the housing is fixedly connected to the outer wall of the drain tank; a cover plate is installed on the top of the housing; a second drain pipe is fixedly connected to the middle of the housing, and the second drain pipe is located above the first drain pipe; a frame plate is fixedly connected to the inner wall of the housing; a filter screen is fixedly connected to the inner wall of the frame plate, and the filter screen is located near the second drain pipe.

[0007] Preferably, a first fixing frame is fixedly connected to the inner wall of the housing; two sets of spring rods are fixedly connected to the middle of the first fixing frame; a tray is fixedly connected to the output end of the spring rod, and the middle of the tray is arc-shaped; the tray is located near the end of the first drain pipe.

[0008] Preferably, a second fixing frame is fixedly connected to the side wall of the tray; an impact ball is fixedly connected to the end of the second fixing frame, and the impact ball is positioned close to the frame plate.

[0009] Preferably, a third fixing frame is fixedly connected to the outer wall of the frame plate; an elastic plate is fixedly connected to the top of the third fixing frame, and the elastic plate and the impact ball are arranged at the same horizontal line.

[0010] Preferably, a seal is fixed to the end of the tray, and the seal is located on the side close to the first drain pipe.

[0011] The beneficial effects of this utility model are:

[0012] This invention provides a tunnel-in-ground drainage pool simulation test device. The water in the upper and lower test pools can be recycled, avoiding water waste during the test. The program has been improved, with a delay Td added to the real-time water level comparison before the water level is compared. This ensures that the water level is stable rather than abrupt before the water pump or water level alarm is activated, avoiding pump malfunctions and false water level alarms. The touch screen displays the water level in real time, which is clear and easy to understand. The touch screen buttons are simple and easy to use, and the water level alarm information is clear. At the same time, the test can be flexibly operated, and automatic and manual control can be switched on the touch screen. Compared with the tunnel on-site test, the operation is simple, cost-effective, and can ensure the personal safety of the test personnel.

[0013] This utility model provides a simulation test device for a tunnel built-in drainage pool. With the help of the set shell, the liquid in the drainage pool can be filtered to reduce the turbidity of the liquid in the drainage pool, solve the problem of frequent liquid replacement by subsequent workers, and reduce water waste. At the same time, the set multi-component flow pipe can improve the uniformity of the liquid absorption process in the water pipe, thereby improving the accuracy of liquid treatment in the drainage pool. The set second drain pipe can recycle the liquid transferred into the shell. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional sectional view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the water pump structure in this utility model;

[0018] Figure 4 for Figure 3 Enlarged view of point A;

[0019] Figure 5 This is a schematic diagram of the tray structure in this utility model;

[0020] Figure 6 This is a flowchart of the programmable controller program of this utility model;

[0021] Figure 7 This is a diagram of the electrical control structure of the experimental device of this utility model.

[0022] Legend:

[0023] 1. Support frame; 11. Upper water tank; 12. Lower water tank; 13. Drain pump; 14. Connecting water pipe; 15. Drain pipe; 16. Liquid level sensor; 17. Electrical control system; 18. Programmable controller; 19. A / D module (analog / digital converter); 110. Intermediate relay; 111. Contactor; 112. Computer; 113. Touch screen; 114. Water level alarm; 2. Water pump; 21. Water pipe; 22. Diverter pipe; 23. First drain pipe; 24. Housing; 25. Cover plate; 26. Second drain pipe; 27. Frame plate; 28. Filter screen; 3. First fixing frame; 31. Spring rod; 32. Tray; 4. Second fixing frame; 41. Impact ball; 5. Third fixing frame; 51. Elastic plate; 6. Seal. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Specific implementation examples are given below.

[0026] like Figure 1-7As shown, a tunnel-embedded drainage pool simulation test device includes a support frame 1; an upper water pool 11 is fixedly connected to the top of the support frame 1; a lower water pool 12 is fixedly connected to the bottom of the support frame 1; multiple sets of drainage pumps 13 are installed at the bottom of the lower water pool 12; a connecting water pipe 14 is fixedly connected to the top of the drainage pump 13, and the other end of the connecting water pipe 14 is fixedly connected to the side wall of the upper water pool 11; a drainage pipe 15 is fixedly connected to the side wall of the upper water pool 11, and the other end of the drainage pipe 15 is fixedly connected to the side wall of the lower water pool 12; the bottom wall of the lower water pool 12 is equipped with... The system is equipped with a support frame 1; a liquid level sensor 16 is fixedly connected to the bottom of the drain tank 12; an electrical control system 17 is installed outside the drain tank 12, and the electrical control system 17 and the drain pipe 15 are offset from each other; the electrical control system 17 includes a programmable controller 18, an A / D module 19, an intermediate relay 110, a contactor 111, a computer 112, a touch screen 113, and a water level alarm 114; the programmable controller 18 and the A / D module 19 are connected by a signal; the A / D... Module 19 and liquid level sensor 16 are connected via signal; the programmable controller 18 and intermediate relay 110 are connected via signal; the intermediate relay 110 and contactor 111 are connected via signal; the programmable controller 18 and computer 112 are connected via signal; the programmable controller 18 and touch screen 113 are connected via signal; the programmable controller 18 and water level alarm 114 are connected via signal; the contactor 111 and drainage pump 13 are connected via signal. During operation, after the upper water tank 11 and support frame 1 are fixed, an appropriate amount of liquid is transferred into the upper water tank 11 and lower water tank 12. The real-time water level of the lower water tank 12 is collected by the liquid level sensor 16. The real-time water level value is compared with the stable water level value in the programmable controller program to determine whether to start the drainage pump 13 and whether to activate the water level alarm. If the drainage pump 13 is started, the water discharged by the drainage pump 13 is connected to the upper water tank 11.Alternatively, by opening the gate valve of the upper water tank 11 and draining through the drain pipe 15, water from the upper water tank 11 can flow into the lower water tank 12. The water in both test water tanks can be recycled. The electrical control system 17 is equipped with automatic and manual control drainage programs, which can be switched between each other. Normally, it operates in automatic control mode. If a fault occurs requiring maintenance, and to ensure staff safety, it can be switched to manual control mode to exit automatic control mode. After the fault is cleared, it switches back to automatic control mode. In automatic control mode, the corresponding water pump is started when the real-time stable water level reaches the pump start level. An alarm water level is set in the PLC (Programmable Logic Controller) program; when the water level reaches the alarm level... The system activates the corresponding water level alarm. This simple structure allows for water recycling in both the upper and lower test pools, preventing water waste during testing. The improved program adds a delay Td to the real-time water level comparison, ensuring the water level is stable rather than abrupt before activating the pump or alarm. This prevents pump malfunctions and false alarms. The touchscreen 113 displays the pool water level clearly and in real-time. The touchscreen's buttons are simple and intuitive, providing clear alarm information. The test is flexible, allowing switching between automatic and manual control via the touchscreen. Compared to tunnel testing, this system is simpler, more cost-effective, and ensures the safety of test personnel.

[0027] like Figure 1-7As shown, a water pump 2 is fixedly connected to the inner wall of the sink 12; a water pipe 21 is fixedly connected to the input end of the water pump 2, and the water pipe 21 is fixedly connected to the bottom wall of the sink 12; multiple branch pipes 22 are fixedly connected to the middle of the water pipe 21, and the multiple branch pipes 22 are connected to the water pipe 21; a first drain pipe 23 is fixedly connected to the output end of the water pump 2; a housing 24 is fixedly connected to the end of the first drain pipe 23, and the first drain pipe 23 is connected to the housing 24; the housing 24 is fixedly connected to the outer wall of the sink 12; A cover plate 25 is installed on the top of the housing 24; a second drain pipe 26 is fixedly connected to the middle of the housing 24, and the second drain pipe 26 is located above the first drain pipe 23; a frame plate 27 is fixedly connected to the inner wall of the housing 24; a filter screen 28 is fixedly connected to the inner wall of the frame plate 27, and the filter screen 28 is located near the second drain pipe 26; during operation, a water pump 2 is installed on the inner wall of the sink 12. When there are many impurities in the sink 12, the operator can start the water pump 2 switch, so that the water pump 2 draws water from the water pipe 21 on one side and the water pipe 23 in the sink 12. The multi-component drain pipe 22 draws out liquid and some impurities, while simultaneously draining liquid and some impurities from one end of the first drain pipe 23 and transferring them to the housing 24 for collection. This works in conjunction with the second drain pipe 26 in the lower water tank 12, which is higher than the liquid level. When the liquid level in the housing 24 reaches the position of the second drain pipe 26, excess liquid can pass through the second drain pipe 26 and be transferred back to the lower water tank 12. The filter screen 28 filters out impurities from the passing liquid, leaving them inside the housing 24. When the housing 24 needs to be cleaned later, the cover plate 28 can be removed. 5. Flip open and clean the inner wall of the housing 24. This step, together with the housing 24, can filter the liquid in the drain tank 12, reduce the turbidity of the liquid in the drain tank 12, solve the problem of frequent liquid replacement by subsequent staff, and reduce water waste. At the same time, the multi-component flow pipe 22 can improve the uniformity of liquid absorption in the water pipe 21, thereby improving the accuracy of liquid treatment in the drain tank 12. The second drain pipe 26 can recycle the liquid transferred to the housing 24.

[0028] like Figure 1-7As shown, a first fixing frame 3 is fixedly connected to the inner wall of the housing 24; two sets of spring rods 31 are fixedly connected to the middle of the first fixing frame 3; a tray 32 is fixedly connected to the output end of the spring rod 31, and the middle of the tray 32 is arc-shaped; the tray 32 is located near the end of the first drain pipe 23; during operation, the tray 32 is located at the end of the first drain pipe 23, and when there is no liquid discharge from the end of the first drain pipe 23, the tray 32 can make close contact with the end of the first drain pipe 23 under the action of the two sets of spring rods 31, and block the end of the first drain pipe 23. When liquid is discharged from the end of the first drain pipe 23 into the housing 24, the liquid can squeeze the arc-shaped tray 32 and push the output end of the spring rod 31 to retract. This step, together with the tray 32, prevents a lot of turbid liquid from settling on the inner wall of the first drain pipe 23, avoiding troublesome subsequent cleaning. At the same time, the arc shape of the tray 32 can improve the stability of the liquid pushing the tray 32 to move.

[0029] like Figure 1-7 As shown, a second fixing frame 4 is fixedly connected to the side wall of the tray 32; an impact ball 41 is fixedly connected to the end of the second fixing frame 4, and the impact ball 41 is positioned close to the frame plate 27; during operation, by setting the second fixing frame 4 at the end of the tray 32, when the tray 32 moves and unfolds, the second fixing frame 4 can be moved synchronously, so that the impact ball 41 moves away from the surface of the frame plate 27 first. When the tray 32 is reset, the impact ball 41 can impact the surface of the frame plate 27. Under the action of the impact, the frame plate 27 and the filter screen 28 can generate some vibration force, and some impurities accumulated on the surface of the filter screen 28 can be cleaned away, reducing the problem of clogging on the surface of the filter screen 28.

[0030] like Figure 1-7 As shown, a third fixing frame 5 is fixedly connected to the outer wall of the frame plate 27; an elastic plate 51 is fixedly connected to the top of the third fixing frame 5, and the elastic plate 51 and the impact ball 41 are set at the same horizontal line; during operation, the third fixing frame 5 is used to support the position of the elastic plate 51, and the impact ball 41 can directly contact the elastic plate 51 when it impacts. The elastic plate 51 used in this step can amplify the generated vibration force, thereby accelerating the cleaning of impurities on the surface of the frame plate 27 and the filter screen 28.

[0031] like Figure 1-7 As shown, a sealing element 6 is fixed to the end of the tray 32, and the sealing element 6 is set on the side close to the first drain pipe 23. During operation, by setting the sealing element 6 at the end of the tray 32, the tray 32 can directly squeeze the soft material sealing element 6 after it is close to the first drain pipe 23. This step can improve the sealing performance of the end of the first drain pipe 23 under the action of the sealing element 6.

[0032] Working principle: After fixing the upper water tank 11 to the support frame 1, an appropriate amount of liquid is transferred into the upper water tank 11 and the lower water tank 12. The real-time water level of the lower water tank 12 is collected by the level sensor 16. The real-time water level value is compared with the stable water level in the programmable controller program to determine whether to start the drainage pump 13 and whether to activate the water level alarm. If the drainage pump 13 is started, the water discharged by the drainage pump 13 is connected to the upper water tank 11; or the gate valve of the upper water tank 11 is opened and the water in the upper water tank 11 flows into the lower water tank 12 through the drain pipe 15. The water in the two test water tanks can be recycled. The electrical control system 17 is set with automatic and manual control drainage programs, which can be switched between automatic and manual control. Under normal circumstances, it operates in automatic control mode. If a malfunction requires maintenance, it can be switched to manual control mode to exit automatic control mode, provided that the safety of the personnel is ensured. After the malfunction is resolved, it can be switched back to automatic control mode. In automatic control mode, the corresponding water pump is started when the real-time stable water level reaches the start-up water pump level. An alarm water level is set in the PLC (Programmable Logic Controller) program. When the water level reaches the alarm level, the corresponding water level alarm is activated. A water pump 2 is installed on the inner wall of the lower water tank 12. When there are many impurities in the lower water tank 12, the personnel can start the water pump 2 switch, so that the water pump 2 can draw out liquid and some impurities from the water pipe 21 on one side and the multi-component flow pipe 22 in the middle, and simultaneously drain the liquid from the first drain pipe. One end of the first drain pipe 23 discharges liquid and some impurities, which are then transferred to the housing 24 for collection. This works in conjunction with the second drain pipe 26 in the sink 12, which is above the liquid level. When the liquid level in the housing 24 reaches the second drain pipe 26, excess liquid can pass through the second drain pipe 26 and be transferred back to the sink 12. The filter screen 28 filters out impurities from the passing liquid, leaving them inside the housing 24. When the housing 24 needs cleaning, a tray 32 is provided at the end of the first drain pipe 23. When no liquid is discharged from the end of the first drain pipe 23, the tray 32, under the action of two sets of spring rods 31, can tightly contact the end of the first drain pipe 23, sealing it. Subsequent liquid discharge from the first drain pipe... When the liquid is discharged from end 23 to the housing 24, it can squeeze the arc-shaped tray 32 and push the output end of the spring rod 31 to retract. By providing a second fixing frame 4 at the end of the tray 32, when the tray 32 moves and unfolds, it can simultaneously drive the second fixing frame 4 to move, so that the impact ball 41 moves away from the surface of the frame plate 27 first. When the tray 32 is reset, the impact ball 41 can impact the surface of the frame plate 27. With the help of the third fixing frame 5, the position of the elastic plate 51 is supported. When the impact ball 41 impacts, it can directly contact the elastic plate 51. By providing a sealing element 6 at the end of the tray 32, the tray 32 can directly squeeze the soft material sealing element 6 after it is close to the first drain pipe 23.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A tunnel built-in drainage tank simulation test device, comprising a support frame (1); the top of the support frame (1) is fixedly connected with an upper tank (11); the bottom of the support frame (1) is fixedly connected with a lower tank (12); characterized in that: The bottom of the sink (12) is provided with a plurality of drainage pumps (13); the top of the drainage pump (13) is fixedly connected with a connecting water pipe (14), and the other end of the connecting water pipe (14) is fixedly connected to the side wall of the upper tank (11); the side wall of the upper tank (11) is fixedly connected with a drain pipe (15), and the other end of the drain pipe (15) is fixedly connected to the side wall of the lower tank (12); the bottom wall of the lower tank (12) is provided with a support frame (1); the bottom of the lower tank (12) is fixedly connected with a liquid level sensor (16); an electrical control system (17) is installed outside the lower tank (12), and the electrical control system (17) is arranged in a staggered manner with the drain pipe (15). The electrical control system (17) comprises a program controller (18), an A / D module (19), an intermediate relay (110), a contactor (111), a computer (112), a touch screen (113), and a water level alarm (114); the program controller (18) and the A / D module (19) are connected by signals; the A / D module (19) and the liquid level sensor (16) are connected by signals; the program controller (18) and the intermediate relay (110) are connected by signals; the intermediate relay (110) and the contactor (111) are connected by signals; the program controller (18) and the computer (112) are connected by signals; the program controller (18) and the touch screen (113) are connected by signals; the program controller (18) and the water level alarm (114) are connected by signals; the contactor (111) and the drainage pump (13) are connected by signals.

2. The in-situ simulation test device for a tunnel embedded drainage tank according to claim 1, characterized in that: The inner wall of the sink (12) is fixedly connected with a water pump (2); the input end of the water pump (2) is fixedly connected with a water pipe (21), and the water pipe (21) is fixedly connected to the bottom wall of the sink (12); a plurality of branch pipes (22) are fixedly connected to the middle of the water pipe (21), and the plurality of branch pipes (22) are in communication with the water pipe (21); the output end of the water pump (2) is fixedly connected with a first liquid discharge pipe (23); the end of the first liquid discharge pipe (23) is fixedly connected with a housing (24), and the first liquid discharge pipe (23) is in communication with the housing (24); the housing (24) is fixedly connected to the outer wall of the sink (12); the top of the housing (24) is provided with a cover plate (25); the middle of the housing (24) is fixedly connected with a second liquid discharge pipe (26), and the second liquid discharge pipe (26) is arranged on the top of the first liquid discharge pipe (23); the inner wall of the housing (24) is fixedly connected with a frame plate (27); the inner wall of the frame plate (27) is fixedly connected with a filter screen (28), and the filter screen (28) is arranged close to the second liquid discharge pipe (26).

3. The in-tunnel built-in drainage cell simulation test device according to claim 2, characterized in that: The inner wall of the shell (24) is fixedly connected with a first fixing frame (3); the middle part of the first fixing frame (3) is fixedly connected with two groups of spring rods (31); the output end of the spring rod (31) is fixedly connected with a tray (32), and the middle part of the tray (32) is provided in a circular arc shape; the tray (32) is provided close to the end of the first liquid discharge pipe (23).

4. The in-tunnel built-in drainage cell simulation test device according to claim 3, characterized in that: The side wall of the tray (32) is fixedly connected with a second fixing frame (4); the end of the second fixing frame (4) is fixedly connected with an impact ball (41), and the impact ball (41) is provided close to the position of the frame plate (27).

5. The in-tunnel built-in drainage cell simulation test device according to claim 2, characterized in that: The end of the frame plate (27) is fixedly connected with a third fixing frame (5); the top of the third fixing frame (5) is fixedly connected with an elastic plate (51), and the elastic plate (51) is provided on the same horizontal line as the impact ball (41).

6. The in-tunnel built-in drainage cell simulation test device according to claim 3, characterized in that: The end of the tray (32) is fixedly connected with a sealing element (6), and the sealing element (6) is provided close to one side of the first liquid discharge pipe (23).

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