Coal mine underground explosion-proof high-energy state potential flow power generation device based on contactless turbojet

Abstract

This invention relates to the field of underground coal mining technology and discloses an explosion-proof high-energy dynamic current power generation device for underground coal mines based on non-contact turbojet technology. The device includes a pipeline, with a support frame fixedly connected to the inner ring of the pipeline. A transmission rod is rotatably connected to the inner ring of the support frame, with one end fixedly connected to a housing. A main rotor is mounted on the other end of the transmission rod. A support plate is fixedly connected to one side of the inner ring of the pipeline, and a generator is fixedly connected to one side of the outer wall of the support plate. An active bevel gear is connected and fixedly attached to the input end of the generator. Based on wind power meter readings, an electric push rod is used to disengage the corresponding main rotor from the slave rotor. Compressed air inside the pipeline then drives the housing to rotate, generating electricity. If the wind power meter reading is insufficient, a branch pipe is opened to output water from a power waterwheel, which then drives the waterwheel to rotate, generating electricity. This allows for flexible switching based on actual conditions.

Description

Technical Field

[0001] This invention relates to the field of underground coal mining technology, specifically to an explosion-proof high-energy dynamic current power generation device for underground coal mines based on a non-contact vortex jet. Background Technology

[0002] The power supply mode in underground coal mines mainly has the following problems: the existing underground power supply in coal mines mainly relies on surface diesel generators or the power grid above ground, which has problems such as large transmission loss (line loss rate > 8%), high construction cost (due to the depth of the mine, the cost of laying long-distance cables accounts for more than 30% of the total project cost), and the installation of explosion-proof sockets or cable branch boxes underground, which increases the risk of electrical sparks (statistics show that 30% of underground fires are caused by electrical faults).

[0003] In existing technologies, although there have been attempts to use wind power generation underground, when only wind turbines are used, insufficient wind power or low air volume will cause the impeller speed to decrease, resulting in insufficient power generation and affecting the stable power supply. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a high-energy dynamic current power generation device for explosion-proof underground coal mines based on non-contact vortex jets. This solves the problem that when only wind turbine power generation is used, insufficient wind power or low air volume will cause the impeller speed to decrease, resulting in insufficient power generation and affecting the stable power supply.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-energy dynamic current power generation device for explosion-proof underground coal mines based on non-contact vortex jets, comprising a pipeline, a support frame fixedly connected to the inner ring of the pipeline, a transmission rod three rotatably connected to the inner ring of the support frame with one end fixedly connected to a housing, a main rotor one disposed at the other end of the transmission rod three, a support plate two fixedly connected to one side of the inner ring of the pipeline, a generator fixedly connected to one side of the outer wall of the support plate two, a driving bevel gear one passing through and fixedly connected to the input end of the generator, a driven bevel gear one meshing with one side of the outer ring of the driving bevel gear one, and a driven rotor one passing through and disposed at one end of both the driving bevel gear one and the driven bevel gear one. A support frame is fixedly connected to one side of the inner ring of the pipe. A transmission rod is rotatably connected to the inner ring of the support frame. A driven bevel gear is fixedly connected to the bottom end of the transmission rod. A driving bevel gear is meshed with the outer ring of the driven bevel gear. A transmission rod is fixedly connected to one end of the driving bevel gear. A power waterwheel is fixedly connected to one end of the transmission rod. Evenly distributed blades are slidably connected to the outer ring of the outer shell. Two electric push rods are fixedly connected to one side of the inner ring of the pipe. A partition is fixedly connected to the output end of each of the two electric push rods. A branch pipe is fixedly connected to one side of the outer ring of the pipe. An adjustment component is provided on the inner wall of the outer shell for adjusting the extension length.

[0006] Preferably, the adjustment component includes a limiting plate, which is fixedly connected to the outer shell. A support plate is slidably connected through the outer ring of the limiting plate. A blade is fixedly connected to one end of the support plate. A cardboard is rotatably connected to one side of the support plate. An adjustment rod is rotatably connected to one side of the cardboard. A linear module is provided on one side of the inner ring of the outer shell. A pressure sensor is provided on one side of the blade.

[0007] Preferably, the other end of the power waterwheel is rotatably connected to a support plate, the bottom of the support plate is fixedly connected to a collection box, and a drain pipe is connected through and fixedly connected to one side of the outer ring of the collection box.

[0008] Preferably, a support plate is fixedly connected to one side of the outer ring of the transmission rod, and a protective shell is fixedly connected to one end of the support plate. The inner wall of the protective shell is provided with a driven bevel gear and a driving bevel gear.

[0009] Preferably, a protective shell is fixedly connected to the inner ring of the pipe, and a driving bevel gear and a driven bevel gear are provided on the inner wall of the protective shell.

[0010] Preferably, a humidity sensor is provided on one side of the inner ring of the pipe, and a wind speed meter is provided on one side of the humidity sensor.

[0011] Preferably, an adjustment rod is provided on one side of the linear module.

[0012] Preferably, a storage battery is provided on one side of the inner ring of the pipe.

[0013] Preferably, a ball valve is connected through and fixedly connected to the bottom end of the branch pipe, and a delivery pipe is connected through and fixedly connected to the other end of the branch pipe.

[0014] Working principle: First, the anemometer detects wind force. When the wind force reaches the preset value, the electric push rod disengages the lower main rotor 1 from the lower driven rotor 1. Then, compressed air drives the outer casing to rotate, and the main rotor 1 and driven rotor 1 are magnetically coupled, thereby transferring mechanical energy to the generator. When the detected wind force is lower than the preset value, the ball valve can be opened, causing water to drive the power waterwheel to rotate. The driving bevel gear 2 and driven bevel gear 2 drive the power waterwheel to rotate, and the lower main rotor 1 and driven rotor 1 are magnetically coupled. The upper main rotor 1 and driven rotor 1 are disengaged by the electric push rod pushing the partition, thereby transferring mechanical energy to the generator. The mechanical energy is converted into electrical energy through electromagnetic induction. The generated electrical energy is processed and stored in a battery. The specific configuration can be selected according to actual conditions. Furthermore, when the airflow impacts the blades, the pressure sensor detects the pressure. When the detected pressure exceeds the preset value, the controller controls the linear module to work, driving the adjusting rod to move, thereby pulling the support plate one and the cardboard two, reducing the distance the blades extend, thus reducing the impact force on the blades and providing some protection. Furthermore, when the pressure sensor detects that the pressure does not exceed the preset value, the distance the blades extend can be increased to increase the wind-catching effect, and the detected pressure will decrease accordingly.

[0015] This invention provides a high-energy dynamic current power generation device for explosion-proof operation in coal mines based on a non-contact vortex jet. It has the following beneficial effects: 1. This invention uses a shell, blades, a power waterwheel, a main rotor, and a slave rotor. Based on the wind power meter, it selects to use an electric push rod to disconnect the corresponding main rotor and slave rotor. Then, the compressed air in the pipeline drives the shell to rotate and generate electricity. When the detection is insufficient, it selects to open a branch pipe to output water from the power waterwheel, thereby driving the power waterwheel to rotate and generate electricity. It can switch according to the actual situation and is flexible in use.

[0016] 2. This invention uses blades, a linear module, an adjusting rod, and a pressure sensor. The pressure sensor detects the airflow impacted by the blades. When the detected pressure exceeds a preset value, the controller controls the linear module to operate and adjusts the position of the adjusting rod, thereby reducing the length of the blade extension and providing some protection for the blade. When the pressure does not exceed the preset value, the blade extension distance can be increased to enhance the wind-catching effect. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a side view of the present invention; Figure 4 This is a cross-sectional view of the outer casing of the present invention; Figure 5 This is an exploded view of the first transmission rod of the present invention.

[0018] The components are as follows: 1. Pipeline; 2. Outer shell; 3. Blades; 4. Main rotor 1; 5. Driven rotor 1; 6. Driving bevel gear 1; 7. Driven bevel gear 1; 8. Generator; 9. Battery; 10. Collection box; 11. Support plate 1; 12. Power waterwheel; 13. Support plate 2; 14. Driving bevel gear 2; 15. Transmission rod 3; 16. Transmission rod 1; 17. Conveying pipe; 18. Branch pipe; 19. Ball valve; 20. Drain pipe; 21. Electric push rod; 22. Linear module; 23. Adjusting rod; 24. Limiting plate; 25. Support plate 1; 26. Cardboard 2; 27. Partition plate; 28. Anemometer; 29. ​​Driven bevel gear 2; 30. Humidity sensor; 31. Protective shell 1; 32. Support frame; 33. Transmission rod 2; 34. Pressure sensor. Detailed Implementation

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0020] Please see the appendix Figure 1 - Appendix Figure 5 This invention provides a high-energy dynamic current power generation device for explosion-proof underground coal mines based on non-contact vortex jet, including a pipe 1. A support frame 32 is fixedly connected to the inner ring of the pipe 1. A transmission rod 15 is rotatably connected to the inner ring of the support frame 32, with one end fixedly connected to a housing 2. A main rotor 4 is installed at the other end of the transmission rod 15. A support plate 13 is fixedly connected to one side of the inner ring of the pipe 1. A generator 8 is fixedly connected to one side of the outer wall of the support plate 13. A power waterwheel 12 is rotatably connected to the other end of a support plate 11. A collection box 10 is fixedly connected to the bottom of the support plate 11. A passage is formed on one side of the outer ring of the collection box 10. A drain pipe 20 is fixedly connected. A support plate 13 is fixedly connected to one side of the outer ring of the transmission rod 2 33. A protective shell 31 is fixedly connected to one end of the support plate 2 13. A driven bevel gear 29 and a driving bevel gear 24 are provided on the inner wall of the protective shell 31. A protective shell 31 is fixedly connected to the inner ring of the pipe 1. A driving bevel gear 6 and a driven bevel gear 7 are provided on the inner wall of the protective shell 31. A humidity sensor 30 is provided on one side of the inner ring of the pipe 1. A wind gauge 28 is provided on one side of the humidity sensor 30. An adjusting rod 23 is provided on one side of the linear module 22. A storage battery 9 is provided on one side of the inner ring of the pipe 1.

[0021] Considering the special environment of underground coal mines containing flammable and explosive gases such as methane and coal dust, all electrical equipment in this device strictly complies with the GB3836 "Explosive Atmospheres" series standards, with an overall enclosure protection rating of IP65 or higher and an explosion-proof mark of Exd I Mb (mining explosion-proof type). Pipeline 1 is preferably made of 8-10mm thick Q345R tensile-resistant and antistatic stainless steel alloy, with an inner surface coated with a Teflon drag-reducing and anti-corrosion coating to reduce wind resistance and moisture corrosion. A cross-shaped support frame 32 is welded to the inner ring of pipeline 1 via flanges. The inner ring of support frame 32 is rotatably connected to transmission rod 35 via deep grooves (the inner ring of support frame 32 is rotatably connected to transmission rod 35 via deep grooves for support). One end of transmission rod 35 is fixedly connected to a streamlined teardrop-shaped outer shell 2 to reduce wind resistance on the windward side.

[0022] A driving bevel gear 6 is connected and fixedly connected to the input end of generator 8. A driven bevel gear 7 is meshed with one side of the outer ring of the driving bevel gear 6. A driven rotor 5 is provided through one end of the driving bevel gear 6 and the driven bevel gear 7. A support frame 32 is fixedly connected to one side of the inner ring of pipe 1. A transmission rod 16 is rotatably connected to the inner ring of the support frame 32. A driven bevel gear 29 is connected and fixedly connected to the bottom end of the transmission rod 16. A driving bevel gear 14 is meshed with the outer ring of the driven bevel gear 29. One end of the driving bevel gear 14 is connected through and fixedly connected to... There is a transmission rod 33, one end of which is fixedly connected to a power waterwheel 12. The outer ring of the outer shell 2 is slidably connected with evenly distributed blades 3. Two electric push rods 21 are fixedly connected to one side of the inner ring of the pipe 1. The output ends of the two electric push rods 21 are fixedly connected to a partition 27. A branch pipe 18 is fixedly connected to one side of the outer ring of the pipe 1. An adjustment component is provided on the inner wall of the outer shell 2. The adjustment component is used to adjust the extension length. A ball valve 19 is fixedly connected to the bottom end of the branch pipe 18. A conveying pipe 17 is fixedly connected to the other end of the branch pipe 18.

[0023] Generator 8 is a mine-use explosion-proof type (e.g., YBX3 series three-phase asynchronous generator, rated power can be set at 5kW-15kW depending on the size of the roadway). The "contactless" aspect is mainly reflected in the magnetic coupling transmission between the main rotor 4 and the driven rotor 5. Alternating N and S pole neodymium iron boron strong magnets are embedded on the opposite end faces of both. During normal coupling, the air gap is maintained between 3mm and 5mm. The mechanical energy of the outer shell 2 is transferred to the generator 8 without contact through magnetic field linkage, eliminating mechanical sparks that may be generated by mechanical friction and greatly improving underground explosion-proof safety. Two mine-use explosion-proof electric push rods 21 are fixedly connected to one side of the inner ring of pipe 1. The output ends of both electric push rods 21 are fixedly connected to a partition 27 made of non-magnetic material (such as permalloy or high-strength fiberglass). When wind power generation needs to be cut off, the electric push rod 21 extends, inserting the partition 27 into the air gap between the main rotor 4 and the driven rotor 5, cutting off the magnetic field coupling and thus physically disengaging the power.

[0024] The adjustment assembly includes a limiting plate 24, which is fixedly connected to the outer shell 2. A support plate 25 is slidably connected through the outer ring of the limiting plate 24. A blade 3 is fixedly connected to one end of the support plate 25. A cardboard 26 is rotatably connected to one side of the support plate 25. An adjustment rod 23 is rotatably connected to one side of the cardboard 26. A linear module 22 is provided on one side of the inner ring of the outer shell 2. A pressure sensor 34 is provided on one side of the blade 3.

[0025] The outer ring of the outer casing 2 is slidably connected to uniformly distributed blades 3 (preferably 3 blades). The surface of the blades 3 is anodized and has micron-level flow-guiding textures to improve wind capture efficiency. Each blade 3 has a high-frequency micro pressure sensor 34 (e.g., a piezoresistive sensor with a range of 0-200 kPa and a response time ≤2 ms) embedded on its windward side. The inner wall of the outer casing 2 is provided with an adjustment component for adjusting the blade extension length. The conveying pipe 17 is used to draw liquid generated underground in the coal mine out of the mine and has complete transportation equipment (not shown in detail in the figure). The inner ring of the pipe 1 is fixedly connected to a protective shell 31, which covers the driving bevel gear 6 and the driven bevel gear 7 for dust protection. The windward side of the inner ring of the pipe 1 is provided with a mine explosion-proof humidity sensor 30 and a high-precision anemometer 28 (detection range 0.1-30 m / s). The explosion-proof electrical control box on the inner side wall of pipe 1 is equipped with an explosion-proof PLC controller (such as an explosion-proof modified version of Siemens S7-1200) and a large-capacity lithium iron phosphate battery 9.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-energy dynamic current power generation device for explosion-proof underground coal mines based on non-contact vortex jets, comprising a pipeline (1), characterized in that, The inner ring of the pipe (1) is fixedly connected to a support frame (32). The inner ring of the support frame (32) is rotatably connected to a transmission rod three (15), one end of which is fixedly connected to a shell (2). The other end of the transmission rod three (15) is provided with a main rotor one (4). The inner ring of the pipe (1) is fixedly connected to a support plate two (13). The outer wall of the support plate two (13) is fixedly connected to a generator (8). The input end of the generator (8) is connected to a driving bevel gear one (6). The outer ring of the driving bevel gear one (6) is meshed with a driven bevel gear one (7). The driving bevel gear one (6) and the driven bevel gear one (7) are connected to a driven rotor one (5) at one end. The inner ring of the pipe (1) is fixedly connected to a support frame (32). The inner ring of the support frame (32) rotates. A transmission rod (16) is connected to the bottom end of the transmission rod (16) and a driven bevel gear (29) is fixedly connected thereto. The outer ring of the driven bevel gear (29) is meshed with a driving bevel gear (14). One end of the driving bevel gear (14) is connected to a transmission rod (33) and a power waterwheel (12) is fixedly connected to one end of the transmission rod (33). The outer ring of the outer shell (2) is connected to a uniformly distributed blade (3). Two electric push rods (21) are fixedly connected to one side of the inner ring of the pipe (1). The output ends of the two electric push rods (21) are fixedly connected to a partition (27). A branch pipe (18) is fixedly connected to one side of the outer ring of the pipe (1). An adjustment component is provided on the inner wall of the outer shell (2). The adjustment component is used to adjust the extension length.

2. The high-energy dynamic current power generation device for underground coal mines based on non-contact vortex jets according to claim 1, characterized in that, The adjustment assembly includes a limiting plate (24), which is fixedly connected to the outer shell (2). A support plate (25) is slidably connected through the outer ring of the limiting plate (24). A blade (3) is fixedly connected to one end of the support plate (25). A cardboard (26) is rotatably connected to one side of the support plate (25). An adjustment rod (23) is rotatably connected to one side of the cardboard (26). A linear module (22) is provided on one side of the inner ring of the outer shell (2). A pressure sensor (34) is provided on one side of the blade (3).

3. The high-energy dynamic current power generation device for underground coal mines based on non-contact vortex jets according to claim 2, characterized in that, The other end of the power waterwheel (12) is rotatably connected to a support plate (11), and a collection box (10) is fixedly connected to the bottom of the support plate (11). A drain pipe (20) is connected through and fixedly connected to one side of the outer ring of the collection box (10).

4. The high-energy dynamic current power generation device for underground coal mines based on non-contact vortex jets according to claim 3, characterized in that, The transmission rod 2 (33) is fixedly connected to a support plate 2 (13) on one side of its outer ring. The support plate 2 (13) is fixedly connected to a protective shell 1 (31) at one end. The inner wall of the protective shell 1 (31) is provided with a driven bevel gear 2 (29) and a driving bevel gear 2 (14).

5. The high-energy dynamic current power generation device for underground coal mines based on non-contact vortex jets according to claim 1, characterized in that, The inner ring of the pipe (1) is fixedly connected to a protective shell (31), and the inner wall of the protective shell (31) is provided with a driving bevel gear (6) and a driven bevel gear (7).

6. The high-energy dynamic current power generation device for underground coal mines based on non-contact vortex jets according to claim 5, characterized in that, A humidity sensor (30) is installed on one side of the inner ring of the pipe (1), and a wind meter (28) is installed on one side of the humidity sensor (30).

7. The high-energy dynamic current power generation device for underground coal mines based on non-contact vortex jets according to claim 2, characterized in that, An adjustment rod (23) is provided on one side of the linear module (22).

8. The high-energy dynamic current power generation device for underground coal mines based on non-contact vortex jets according to claim 1, characterized in that, A storage battery (9) is installed on one side of the inner ring of the pipe (1).

9. The high-energy dynamic current power generation device for underground coal mines based on non-contact vortex jets according to claim 1, characterized in that, A ball valve (19) is connected through and fixedly connected to the bottom end of the branch pipe (18), and a delivery pipe (17) is connected through and fixedly connected to the other end of the branch pipe (18).

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