Deep mine water energy power generation device

Abstract

The application provides a deep mine water energy power generation device. The deep mine water energy power generation device comprises a mine tunnel water storage pool, a bottom plate is arranged on the mine tunnel water storage pool, a water turbine is arranged on the bottom plate through first hexagonal head bolts, a backing plate is installed on the mine tunnel water storage pool through second hexagonal head bolts, a nozzle mechanism is installed on the backing plate through a first connecting structure, a hand electric speed regulator and a folding device are arranged on the nozzle mechanism, and an expansion joint is arranged on the nozzle mechanism. The deep mine water energy power generation device provided by the application converts the gravitational potential energy caused by the fluctuation of water flow into mechanical energy, and then converts the mechanical energy into electrical energy through electromagnetic induction principle. The excess electrical energy is stored as energy. When the peak electricity consumption period and the renewable new energy power generation are unstable, the stored energy is used for power generation, which effectively avoids the waste of electrical energy, ensures the stability of power supply, and improves the usability of renewable new energy power generation.

Description

Technical Field

[0001] This invention relates to the field of hydropower generation, and more particularly to a deep mine hydropower generation device. Background Technology

[0002] With the rapid development of cities, energy supply is becoming increasingly strained, and the complex electricity consumption patterns between off-peak and peak periods put enormous pressure on the power grid. During the first half of the night, which coincides with peak electricity consumption, the voltage is generally low, resulting in insufficient power supply; during the second half of the night, when electricity consumption is low, the grid voltage rises sharply, reaching as high as 250V in some areas, leading to a significant waste of electrical energy.

[0003] In regions with limited grid support, renewable energy sources such as wind and solar photovoltaic power are gradually being adopted as a supplement to the traditional grid. However, these renewable energy sources face a series of unresolved issues, including instability, low dispatchability, poor grid connection performance, and impacts on grid harmonic management, affecting their availability. The problem of unstable power generation between off-peak and peak electricity demand remains unresolved, and renewable energy generation also suffers from power supply instability.

[0004] Therefore, it is necessary to provide a deep mine hydroelectric power generation device to solve the above-mentioned technical problems. Summary of the Invention

[0005] This invention provides a deep mine hydroelectric power generation device, which solves the problems in the background art.

[0006] To solve the above-mentioned technical problems, the deep mine hydroelectric power generation device provided by the present invention includes: a mine tunnel water storage tank; The mine tunnel water storage tank is equipped with a base plate. A water turbine is mounted on the base plate via a first hexagonal head bolt. A pad is installed on the mine tunnel water storage tank via a second hexagonal head bolt. A nozzle mechanism is mounted on the pad via a first connecting structure. The nozzle mechanism is equipped with a manual / electric speed regulator and a deflector mechanism. An expansion joint is installed on the nozzle mechanism. A water pump is installed on the mine tunnel water storage tank. The water pump is connected to the expansion joint. A bypass pipe is installed on the water pump. A gate flange is installed on the bypass pipe via a second connecting structure. A sealing ring is installed on the gate flange. A drain pipe is installed on the bypass pipe. A gate valve is installed on the drain pipe via a third connecting structure. A generator is installed on the back of the water turbine. A flywheel cover and a braking device are installed on the water turbine. The flywheel cover is installed on the mine tunnel water storage tank via a third hexagonal head bolt.

[0007] Preferably, the first connection structure includes a first washer, a first nut, and an anchor bolt. The nozzle mechanism is installed on the mine water storage tank via the first nut and the anchor bolt, and the first washer is disposed between the anchor bolt and the first nut.

[0008] Preferably, the second connection structure includes a fourth hexagonal head bolt, a second nut, a second washer, and a spring washer. The front flange is installed on the bypass pipe by a third hexagonal head bolt and a second nut, and the second washer and the spring washer are disposed between the fourth hexagonal head bolt and the second nut.

[0009] Preferably, the third connection structure includes a sealing gasket, a fastening bolt, a third nut, and a third washer. The gate valve is installed on the drain pipe via the fastening bolt and the third nut, and the third washer is disposed between the fastening bolt and the third nut. The sealing gasket is disposed between the gate valve and the drain pipe.

[0010] Preferably, the main shaft of the water turbine is fixedly connected to the main shaft of the generator.

[0011] Preferably, the device further includes a water filtration device, which is installed on the water inlet pipe of the water turbine. The water filtration device includes a housing, with an inlet pipe and an outlet pipe respectively provided at the top and bottom of the housing. The housing contains a first filter chamber, two second filter chambers, and a water holding chamber. The first filter chamber and the two second filter chambers are separated by two partitions. The water holding chamber is fixedly connected to two support plates. Each of the two support plates is provided with a telescopic component, and each of the two telescopic components is provided with a connecting plate. A first filter plate is fixedly connected between the tops of the two connecting plates. A second filter plate is provided between each of the two second filter chambers and the water holding chamber.

[0012] Preferably, sealing gaskets are provided between the first filter plate and the two partitions, and between the two second filter plates and the two connecting plates.

[0013] Preferably, the telescopic assembly includes a sealing cylinder, a sealing block, a telescopic rod, and a compression spring. The sealing cylinder is fixedly connected to the support plate, the sealing block is slidably connected to the inside of the sealing cylinder, the bottom end of the telescopic rod is fixedly installed on the top of the sealing block, the compression spring is disposed between the sealing block and the sealing cylinder, and the top end of the telescopic rod is fixedly connected to the connecting plate.

[0014] Preferably, a limiting block is fixedly connected to one side of the connecting plate, an openable cover is provided on the side wall of the second filter chamber, a limiting component is provided at the bottom of the partition, and the cover and the limiting component are connected by a metal rope.

[0015] Preferably, the limiting component includes a fixed frame, a sliding block, a tension spring, a straight toothed plate, a rotating shaft, a gear, a pulley, a moving block, and a limiting pin. The fixed frame is fixed to the partition plate, the sliding block is slidably connected inside the fixed frame, the tension spring is disposed between the sliding block and the fixed frame, the straight toothed plate is fixed to the sliding block and passes through the fixed frame, the rotating shaft is rotatably connected to the fixed frame, the gear and the pulley are both fixedly connected to the rotating shaft, the pulley is wound and connected to a metal rope, the moving block is fixed to the straight toothed plate, and the limiting pin is fixed to the moving block.

[0016] Compared with related technologies, the deep mine hydroelectric power generation device provided by the present invention has the following beneficial effects: This invention provides a deep mine hydroelectric power generation device that converts the gravitational potential energy caused by the rise and fall of water flow into mechanical energy, and then converts the mechanical energy into electrical energy through the principle of electromagnetic induction. Excess electrical energy is stored as energy. During peak electricity demand periods and when renewable energy generation is unstable, the stored energy is used to generate electricity, effectively avoiding energy waste, ensuring power supply stability, improving the availability of renewable energy generation, and ensuring the electricity needs of users are met. Through the promotion of hydroelectric power generation, a green, energy-saving, and low-carbon concept is established. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of the first embodiment of the deep mine hydropower generation device provided by the present invention; Figure 2 for Figure 1 A side view of the water turbine shown; Figure 3 An installation diagram of the deep mine hydroelectric power generation device provided by the present invention; Figure 4 for Figure 3 The factory layout plan shown is shown below; Figure 5 A schematic diagram of the structure of a second embodiment of the deep mine hydropower generation device provided by the present invention; Figure 6 for Figure 5 The diagram shows the structure of the telescopic component. Figure 7 for Figure 5 A magnified view of part A shown; Figure 8 for Figure 5 The diagram shows the structure of the limiting component.

[0018] Numbered in the diagram: 1. Mine water storage tank; 2. Base plate; 3. First hexagonal head bolt; 4. Water turbine; 5. Second hexagonal head bolt; 6. Gasket; 7. First connecting structure; 8. Nozzle mechanism; 9. Manual / electric speed controller; 10. Deflector mechanism; 11. Expansion joint; 12. Water pump; 13. Bypass pipe; 14. Second connecting structure; 15. Front flange; 16. Sealing ring; 17. Drain pipe; 18. Third connecting structure; 19. Gate valve; 20. Generator; 21. Flywheel cover; 22. Braking device; 23. Third hexagonal head bolt; 24. Outer casing; 25. Inlet pipe; 26. Outlet pipe. 27. Pipe, 28. First filter chamber, 29. Second filter chamber, 30. Water holding chamber, 31. Partition plate, 32. Support plate, 33. Telescopic assembly, 321. Sealing cylinder, 322. Sealing block, 323. Telescopic rod, 324. Compression spring, 33. Connecting plate, 34. First filter plate, 35. Second filter plate, 36. Limiting block, 37. Cover plate, 38. Limiting assembly, 381. Fixed frame, 382. Sliding block, 383. Tension spring, 384. Straight tooth plate, 385. Rotating shaft, 386. Gear, 387. Pulley, 388. Moving block, 389. Limiting pin, 39. Metal rope. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] First Embodiment Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 ,in, Figure 1 A schematic diagram of the structure of the first embodiment of the deep mine hydropower generation device provided by the present invention; Figure 2 for Figure 1 A side view of the water turbine shown; Figure 3 An installation diagram of the deep mine hydroelectric power generation device provided by the present invention; Figure 4 for Figure 3 The diagram shows the plant layout. The deep mine hydroelectric power generation unit includes: mine tunnel water storage tank 1; A base plate 2 is provided on the mine tunnel water storage tank 1. A water turbine 4 is mounted on the base plate 2 via a first hexagonal head bolt 3. A pad 6 is installed on the mine tunnel water storage tank 1 via a second hexagonal head bolt 5. A nozzle mechanism 8 is mounted on the pad 6 via a first connecting structure 7. The nozzle mechanism 8 is equipped with a manual / electric speed regulator 9 and a deflector mechanism 10. An expansion joint 11 is provided on the nozzle mechanism 8. A water pump 12 is provided on the mine tunnel water storage tank 1. The water pump 12 is connected to the expansion joint 11. A bypass pipe 13 is provided on the 2nd turbine, and a gate flange 15 is installed on the bypass pipe 13 through a second connecting structure 14. A sealing ring 16 is provided on the gate flange 15. A drain pipe 17 is provided on the bypass pipe 13, and a gate valve 19 is installed on the drain pipe 17 through a third connecting structure 18. A generator 20 is installed on the back of the turbine 4. A flywheel cover 21 and a braking device 22 are provided on the turbine 4. The flywheel cover 21 is installed on the mine water storage tank 1 through a third hexagonal head bolt 23.

[0021] The first connecting structure 7 includes a first washer, a first nut, and an anchor bolt. The nozzle mechanism 8 is installed on the mine water storage tank 1 by the first nut and the anchor bolt, and the first washer is disposed between the anchor bolt and the first nut.

[0022] The second connection structure 14 includes a fourth hexagonal head bolt, a second nut, a second washer, and a spring washer. The front flange 15 is installed on the bypass pipe 13 by a third hexagonal head bolt and a second nut, and the second washer and the spring washer are disposed between the fourth hexagonal head bolt and the second nut.

[0023] The third connection structure 18 includes a sealing gasket, a fastening bolt, a third nut, and a third washer. The gate valve 19 is installed on the drain pipe 17 by the fastening bolt and the third nut, and the third washer is disposed between the fastening bolt and the third nut. The sealing gasket is disposed between the gate valve 19 and the drain pipe 17.

[0024] The main shaft of the water turbine 4 is fixedly connected to the main shaft of the generator 20.

[0025] Please see Figure 3 and Figure 4 The construction steps of the deep mine hydroelectric power generation device include: Step 1: Full-section anchor mesh spraying support for the 440m uphill ramp section roadway and chamber. The support area includes a 55m roadway (specifications: one-third three-center arch, 4.3m wide x 4.2m high) and a 11m deep chamber (specifications: one-third three-center arch, 5.3m wide x 5.1m high).

[0026] Step 2: Spray lining layer on the entire cross section of the tunnel and harden the tunnel surface (tunnel surface: width * length 4.3 * 4.2, power distribution chamber width * length 5.3 * 5.1).

[0027] Step 3: Lay and weld Φ273*7 seamless pipe from the 430m downhill ramp junction to the 440m water inlet of the hydropower generator unit. Lay and weld Φ273*7 seamless pipe from the 440m water storage tank outlet to the 420m downhill ramp junction, for a total pipeline length of 620m. The water supply pipeline nodes are fixed with pipe clamps and anchor bolts. Install 5 sets of pipeline valves. After rust removal, apply anti-rust paint to the pipeline and conduct a pressure test in accordance with relevant national regulations.

[0028] Step 4: Lay 700 meters of power cable from the 480m high-voltage distribution room to the 440m hydropower generator feeder panel, and lay 700 meters of power cable from the 480m high-voltage distribution room to the 440m maintenance power supply box, installed on the top of the tunnel. Install one each of the following: lighting distribution box, generator grid connection switch cabinet, unit automation control cabinet, unit temperature measurement and excitation cabinet, and maintenance power supply box; and 50 meters of lighting strip.

[0029] Step 5: Based on the drawings and the factory drawings of the hydro-generator set, fabricate the foundation steel structure platform, staircase, fire doors, drainage ditches, electric hoist installation and other equipment and facilities of the hydro-generator set in accordance with the design specifications.

[0030] Step Six: Install the hydropower generation device and related control cabinet, and debug and connect it to the grid for power generation.

[0031] The working principle of the deep mine hydroelectric power generation device provided by this invention is as follows: Water is drawn into the mine's water storage tank by the water pump 12 and delivered to the water turbine 4 through the expansion joint 11 and the nozzle mechanism 8. This drives the flywheel of the water turbine 4 to rotate, thereby causing the main shaft of the water turbine 4 to rotate. This, in turn, drives the main shaft of the generator 20 to rotate and generate electricity. The system is equipped with a manual / electric speed controller 9 and a deflector mechanism 10, which can adjust the size and direction of the water flow.

[0032] Compared with related technologies, the deep mine hydroelectric power generation device provided by the present invention has the following beneficial effects: The gravitational potential energy caused by the rise and fall of water flow is converted into mechanical energy, and then the mechanical energy is converted into electrical energy through the principle of electromagnetic induction. Excess electrical energy is stored as energy. During peak electricity demand periods and when renewable energy generation is unstable, the stored energy is used to generate electricity, effectively avoiding the waste of electrical energy, ensuring the stability of power supply, improving the availability of renewable energy generation, and ensuring the electricity demand of electricity users. Through the promotion of hydropower generation, the application of new energy sources is promoted, establishing a green, energy-saving, and low-carbon concept.

[0033] Second Embodiment Please refer to the following: Figure 5-8 Based on the deep mine hydropower generation device provided in the first embodiment of this application, the second embodiment of this application proposes another deep mine hydropower generation device. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0034] Specifically, the difference in the deep mine hydroelectric power generation device provided in the second embodiment of this application is that it also includes a water filtration device. The water filtration device is installed on the water inlet pipe of the turbine 4. The water filtration device includes a housing 24. The top and bottom of the housing 24 are respectively provided with a water inlet pipe 25 and a water outlet pipe 26. The interior of the housing 24 is provided with a first filter chamber 27, two second filter chambers 28 and a water holding chamber 29. The first filter chamber 27 and the two second filter chambers 28 are separated by two partitions 30. The interior of the water holding chamber 29 is fixedly connected to two support plates 31. Each of the two support plates 31 is provided with a telescopic component 32. Each of the two telescopic components 32 is provided with a connecting plate 33. The tops of the two connecting plates 33 are fixedly connected to a first filter plate 34. A second filter plate 35 is provided between each of the two second filter chambers 28 and the water holding chamber 29.

[0035] The first filter plate 34 is V-shaped and has a guiding function on both sides, and both second filter plates 35 are inclined.

[0036] Sealing gaskets are provided between the first filter plate 34 and the two partition plates 30, and between the two second filter plates 35 and the two connecting plates 33.

[0037] The sealing gaskets ensure the airtightness between the first filter plate 34 and the two partition plates 30, as well as the airtightness between the two second filter plates 35 and the two connecting plates 33.

[0038] The telescopic assembly 32 includes a sealing cylinder 321, a sealing block 322, a telescopic rod 323, and a compression spring 324. The sealing cylinder 321 is fixedly connected to the support plate 31, the sealing block 322 is slidably connected to the inside of the sealing cylinder 321, the bottom end of the telescopic rod 323 is fixedly installed on the top of the sealing block 322, the compression spring 324 is disposed between the sealing block 322 and the sealing cylinder 321, and the top end of the telescopic rod 323 is fixedly connected to the connecting plate 33.

[0039] The telescopic component 32 is used to support the connecting plate 33, that is, to support the first filter plate 34. When the first filter plate 34 accumulates too much solid impurities, causing its weight to increase, the first filter plate 34 moves downward, causing the connecting plate 33 to move downward, thereby causing the telescopic rod 323 to move downward, driving the sealing block 322 to press down inside the sealing cylinder 321, thereby increasing the internal pressure of the sealing cylinder 321 and squeezing the compression spring 324. When the solid impurities on the first filter plate 34 slide off, the sealing block 322 is reset by the reverse thrust, thereby causing the first filter plate 34 to reset.

[0040] A limiting block 36 is fixedly connected to one side of the connecting plate 33. The side walls of the second filter chamber 28 are provided with openable cover plates 37. A limiting component 38 is provided at the bottom of the partition plate 30. The cover plate 37 and the limiting component 38 are connected by a metal rope 39.

[0041] The top of the limiting block 36 is sloped to prevent solid impurities from falling and remaining. The cover plate 37 is provided with a latch to fix the cover plate 37. The cover plate 37 and the second filter chamber 28 are sealed together by a sealing gasket.

[0042] The limiting component 38 includes a fixed frame 381, a sliding block 382, ​​a tension spring 383, a straight toothed plate 384, a rotating shaft 385, a gear 386, a pulley 387, a moving block 388, and a limiting pin 389. The fixed frame 381 is fixed to the partition plate 30. The sliding block 382 is slidably connected to the inside of the fixed frame 381. The tension spring 383 is disposed between the sliding block 382 and the fixed frame 381. The straight toothed plate 384 is fixed to the sliding block 382 and passes through the fixed frame 381. The rotating shaft 385 is rotatably connected to the fixed frame 381. The gear 386 and the pulley 387 are both fixedly connected to the rotating shaft 385. The pulley 387 is wound and connected to the metal rope 39. The moving block 388 is fixed to the straight toothed plate 384. The limiting pin 389 is fixed to the moving block 388.

[0043] The metal rope 39 is wound counterclockwise on the surface of the pulley 387, and the straight tooth plate 384 meshes with the outer surface of the gear 386.

[0044] Compared with related technologies, the deep mine hydroelectric power generation device provided by the present invention has the following beneficial effects: After the water from the mine water storage tank is introduced into the interior of the outer shell 24, the water enters the first filter chamber 27 through the water inlet pipe 25 and is filtered by the first filter plate 34 to remove solid impurities in the water and prevent the water turbine 4 from being stuck due to impurities. After continuous filtration, solid impurities accumulate on the surface of the first filter plate 34, thus obstructing the first filter plate 34 and affecting the filtration effect. As the amount of solid impurities increases, the weight of the first filter plate 34 increases. At this time, the telescopic component 32 will be compressed under force, and the first filter plate 34 will move down, discharging the surface solid impurities into the two second filter chambers 28. The discharged solid impurities are then slowly filtered by the second filter plate 35. After the weight of the first filter plate 34 decreases, it resets and continues to work, so that when the first filter plate 34 is processing water quickly, it avoids the accumulation of solid impurities and the slowdown of the water filtration effect. When a large amount of solid impurities accumulate inside the second filter chamber 28, the cover plate 37 can be opened to clean the inside of the second filter chamber 28. When the cover plate 37 is flipped, it will pull the metal rope 39, thereby causing the pulley 387 to rotate counterclockwise, which in turn causes the gear 386 to rotate counterclockwise, driving the straight tooth plate 384 to move outward, pulling the tension spring 383. The outward movement of the straight tooth plate 384 will cause the limiting pin 389 to move toward the connecting plate 33 and get stuck at the bottom of the limiting block 36, limiting the first filter plate 34 and preventing the first filter plate 34 from moving downward and causing water leakage. After the cover plate 37 is closed, the tension spring 383 will spring back to its original position, causing the straight tooth plate 384 to spring back to its original position, which in turn causes the limit pin 389 to leave the limit block 36, so that the first filter plate 34 is unrestricted.

[0045] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A deep mine hydroelectric power generation device, characterized in that, The system includes a mine tunnel water storage tank; a base plate is provided on the mine tunnel water storage tank, and a water turbine is mounted on the base plate via a first hexagonal head bolt; a pad is installed on the mine tunnel water storage tank via a second hexagonal head bolt; a nozzle mechanism is installed on the pad via a first connecting structure; a manual / electric speed regulator and a deflector mechanism are provided on the nozzle mechanism; an expansion joint is provided on the nozzle mechanism; a water pump is provided on the mine tunnel water storage tank, and the water pump is connected to the expansion joint; a bypass pipe is provided on the water pump; a gate flange is installed on the bypass pipe via a second connecting structure; a sealing ring is provided on the gate flange; a drain pipe is provided on the bypass pipe; a gate valve is installed on the drain pipe via a third connecting structure; and a generator is installed on the back of the water turbine. The motor, the water turbine is equipped with a flywheel cover and a braking device. The flywheel cover is mounted on the mine water storage tank using hexagonal head bolts. It also includes a water filtration device installed on the water inlet pipe of the water turbine. The water filtration device includes a housing with an inlet pipe at the top and an outlet pipe at the bottom. Inside the housing are a first filter chamber, two second filter chambers, and a water holding chamber. The first filter chamber and the two second filter chambers are separated by two partitions. Two support plates are fixedly connected inside the water holding chamber. Each support plate has a telescopic assembly, and each telescopic assembly has a connecting plate. A first filter plate is fixedly connected between the tops of the two connecting plates. The two second filter chambers and the water holding chamber... A second filter plate is provided between each cavity; the first filter plate is V-shaped and has guiding functions on both sides, and the two second filter plates are inclined; sealing gaskets are provided between the first filter plate and the two partitions, and between the two second filter plates and the two connecting plates; the telescopic assembly includes a sealing cylinder, a sealing block, a telescopic rod, and a compression spring; the sealing cylinder is fixedly connected to the support plate, the sealing block is slidably connected to the inside of the sealing cylinder, the bottom end of the telescopic rod is fixedly installed on the top of the sealing block, the compression spring is disposed between the sealing block and the sealing cylinder, and the top end of the telescopic rod is fixedly connected to the connecting plate; a limit block is fixedly connected to one side of the connecting plate, and each side wall of the second filter cavity is provided with an openable cover plate, and the bottom of the partition... A limiting component is provided, and the cover plate is connected to the limiting component by a metal rope. The limiting component includes a fixed frame, a sliding block, a tension spring, a straight toothed plate, a rotating shaft, a gear, a pulley, a moving block, and a limiting pin. The fixed frame is fixed to the partition plate, the sliding block is slidably connected to the inside of the fixed frame, the tension spring is disposed between the sliding block and the fixed frame, the straight toothed plate is fixed to the sliding block and passes through the fixed frame, the rotating shaft is rotatably connected to the fixed frame, the gear and the pulley are both fixedly connected to the rotating shaft, the metal rope is wound counterclockwise around the surface of the pulley, the moving block is fixed to the straight toothed plate, the limiting pin is fixed to the moving block, and the straight toothed plate meshes with the outer surface of the gear.When the cover plate flips, the metal rope is pulled, causing the pulley and gear to rotate counterclockwise. This drives the spur gear plate to move outward, pulling the tension spring and causing the limit pin to move towards the connecting plate and lock into the bottom of the limit block, thus limiting the first filter plate. After the cover plate is closed, the tension spring returns to its original position, causing the limit pin to leave the limit block and releasing the limitation on the first filter plate.

2. The deep mine hydroelectric power generation device according to claim 1, characterized in that, The first connection structure includes a first washer, a first nut, and an anchor bolt. The nozzle mechanism is installed on the mine water storage tank via the first nut and the anchor bolt, and the first washer is disposed between the anchor bolt and the first nut.

3. The deep mine hydroelectric power generation device according to claim 1, characterized in that, The second connection structure includes a fourth hexagonal head bolt, a second nut, a second washer, and a spring washer. The front flange is installed on the bypass pipe by a third hexagonal head bolt and a second nut, and the second washer and the spring washer are disposed between the fourth hexagonal head bolt and the second nut.

4. The deep mine hydroelectric power generation device according to claim 1, characterized in that, The third connection structure includes a sealing gasket, a fastening bolt, a third nut, and a third washer. The gate valve is installed on the drain pipe via the fastening bolt and the third nut, and the third washer is disposed between the fastening bolt and the third nut. The sealing gasket is disposed between the gate valve and the drain pipe.

5. The deep mine hydroelectric power generation device according to claim 1, characterized in that, The main shaft of the water turbine is fixedly connected to the main shaft of the generator.

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