Efficient axial flow type water wheel power generation device

Abstract

The invention provides an efficient axial-flow type water wheel power generation device, and relates to the technical field of water wheel generator equipment, the efficient axial-flow type water wheel power generation device comprises a volute, and a fixed cover is arranged at the top of the volute; a bottom shaft is arranged in the center of the volute; four groups of rotating wheels are arranged on the bottom shaft and are distributed in parallel up and down; a power generation assembly is arranged at the top of the fixing cover, the rotating wheels adopt novel anti-cavitation blades, four groups of rotating wheels are matched with one another, and are connected and fixed through a fixing ring and two connecting screw rods, so that the mounting and dismounting processes are convenient, and water flow can flow through the blades more smoothly by utilizing a layered spiral structure of the rotating wheels; the water flow separation and vortex generation are reduced, the resistance of the water flow is reduced, so that the flow and the output are increased, and the problems that the friction resistance of the water flow is greatly increased, more energy is wasted and the electric energy conversion efficiency is reduced due to the fact that the water flow generates certain bubbles and vortexes in the rotating process of the water wheel are solved.

Description

Technical Field

[0001] The invention relates to the technical field of water turbine generator equipment, and in particular to a high-efficiency axial flow water turbine generator device. Background Art

[0002] The working principle of the axial flow turbine generator is that water flows into the runner and flows along the axial direction of its blades, converting the water flow energy into mechanical energy. After the water flows into the runner, the rotation of the blades drives the generator rotor to rotate, thereby generating electrical energy. The axial flow turbine generator is suitable for hydropower stations with medium and low heads and large flows, such as small hydropower stations, irrigation pumping stations, etc. Due to its compact structure, it is particularly suitable for use in occasions with small load changes.

[0003] For example, application number: CN202310492274.6 provides a speed regulating device for a hydro-turbine generator set, which relates to the technical field of speed regulating of hydro-turbine generators. The speed regulating device for a hydro-turbine generator set includes a fixed structure, a filtering structure and an annular structure. The middle part of the lower end of the fixed structure is fixedly connected with an annular structure, the middle part of the lower end of the annular structure is fixedly connected with a filtering structure, and the middle part of the upper end of the filtering structure is provided with a fixed structure. The filtering structure includes a rotating fan 2, a rotating fan 1, a guide bearing 2, a filter cartridge, a screening net 2, a water pipe, a support rod 1 and a filter net. The rotating fan 2 is fixedly connected to the guide bearing 2 on the opposite sides of the front, back, left and right. When adjusting the speed internally, personnel can cooperate with the control ring through the piston cylinder to operate the rotation speed of the rotating fan 2 and the rotating rod. At the same time, the guide vane controller can reduce the speed of the guide vane to an appropriate range, which can be effectively controlled and reduce the stuck phenomenon of the guide vane when in use.

[0004] Based on the search of the above patents and in combination with the equipment in the prior art, it is found that when the axial flow turbine generator is in use, the water wheel will generate certain bubbles and vortices in the water flow during rotation, which greatly increases the friction resistance of the water flow, wastes more energy, and reduces the conversion efficiency of electric energy; and the air cooling system is the main way to cool the generator, but the generator set is large, which will produce excessive ventilation losses, affecting its cooling efficiency. At the same time, it is necessary to equip the generator room and the main shaft with more fans, which greatly increases the installation cost of the equipment; and when the main shaft of the generator fails or needs maintenance, it is usually necessary to stop the machine for overall disassembly, and the operation process is cumbersome and laborious, and the installation and disassembly are difficult, which will consume a lot of maintenance costs and time; in addition, during the operation of the unit, due to the influence of factors such as temperature changes and vibrations, the positions of the generator room and the volute may change slightly, resulting in the center of the main shaft offset, reducing the stability of the unit operation. Summary of the invention

[0005] The disclosed embodiment relates to a high-efficiency axial-flow hydro-turbine power generation device, in which a runner adopts a new type of anti-cavitation blade, which cooperates with each other through four groups of upper and lower runners, and is connected and fixed by a fixing ring and two connecting screws, so that the installation and disassembly process is convenient, and its layered spiral structure can make water flow through the blade more smoothly, reduce the separation of water flow and the generation of vortex, reduce the resistance of water flow, and thus increase the flow rate and output; air is supplied to the ventilation seat by an adjustable cooling fan, and the annular air duct is connected with the fixed cover to realize the cooling process of the power generation component and the main shaft, meet the changing requirements of the heat dissipation and cooling air volume of the unit under multiple conditions, reduce ventilation losses, and improve the cooling efficiency of the generator set.

[0006] In a first aspect of the present disclosure, a high-efficiency axial-flow hydro-turbine power generation device is provided, specifically comprising: a volute, a fixed cover is provided on the top of the volute; a bottom shaft is provided at the center of the volute; four sets of runners are provided on the bottom shaft, and the four sets of runners are distributed in an upper and lower parallel manner; a power generation assembly is provided on the top of the fixed cover; a main shaft is provided at the center of the power generation assembly and the fixed cover; an adjustment sleeve is provided at the bottom of the main shaft, and the adjustment sleeve corresponds to the position of the fixed cover; a control frame is provided on the adjustment sleeve; three support assemblies are provided in the fixed cover, and the three support assemblies are distributed in a circular array manner;

[0007] A water inlet is arranged on one side of the volute, a top cover is arranged on the top of the volute, and the top cover is located at the bottom end of the fixed cover, and the bottom shaft is rotatably connected with the top cover through a bearing, and a support assembly is arranged on the top of the top cover.

[0008] In at least some embodiments, a ring seat is arranged in the center of the fixed cover, the ring seat is a cylindrical cavity structure, and the main shaft is rotatably connected to the ring seat through a bearing, and the adjustment sleeve and the control frame are located in the ring seat, and two mounting plates are arranged on the outer peripheral surface of the ring seat, and the two mounting plates are distributed in a symmetrical manner, and a limiting through groove is arranged in the middle position of the mounting plate.

[0009] In at least some embodiments, a first spline shaft is provided in the middle section of the bottom shaft, a fixing ring is provided at the bottom end of the bottom shaft, two through holes are opened on the fixing ring, and the two through holes are symmetrically distributed, a connecting sleeve is provided at the top end of the bottom shaft, three positioning grooves are provided on the inner circumference of the connecting sleeve, and the three positioning grooves are distributed in a circular array.

[0010] In at least some embodiments, a mounting ring is provided at the bottom of the rotating wheel below, a mounting sleeve is provided at the center of the rotating wheel, a first spline sleeve is provided inside the mounting sleeve, and the first spline shaft passes through the first spline sleeve, and two limiting holes are provided on the mounting sleeve, the limiting holes correspond to the positions of the through holes, and the limiting holes and the through holes are simultaneously passed through by a connecting screw and controlled by a locking nut.

[0011] In at least some embodiments, a stator is provided inside the power generation component, an excitation seat is provided on the top of the power generation component, and the excitation seat corresponds to the top of the main shaft, a support frame is provided inside the power generation component, and the stator is fixedly installed on the top of the support frame, a ventilation seat is provided at the bottom of the support frame, and the main shaft is rotatably connected to the support frame and the ventilation seat through bearings, an annular air duct is provided at the bottom of the ventilation seat, and the annular air duct is communicated with the fixed cover.

[0012] In at least some embodiments, a rotor is provided at the upper half of the main shaft, and the rotor is located in the power generation assembly, and the rotor is matched with the stator, a second spline shaft is provided at the bottom end of the main shaft, a support ring is provided on the main shaft, and the support ring is located at the connection between the main shaft and the second spline shaft, and a first compression spring is mounted on the second spline shaft.

[0013] In at least some embodiments, a second spline sleeve is provided in the adjusting sleeve, and the adjusting sleeve is slidably mounted on the second spline shaft through the second spline sleeve, and the first compression spring is supported between the support ring and the adjusting sleeve, three positioning blocks are provided on the outer circumference of the bottom end of the adjusting sleeve, and the three positioning blocks are distributed in a circular array, and the positioning blocks are engaged with the positioning slots, a bearing groove is provided near the top end of the adjusting sleeve, a rotating ring is rotatably installed on the bearing groove, two connecting columns are provided on the outer circumference of the rotating ring, and the two connecting columns are symmetrically distributed.

[0014] In at least some embodiments, the control frame is a rectangular frame structure, and connecting frames are provided on both sides of the control frame, and the two connecting frames are distributed in a symmetrical manner, a threaded sleeve is provided at the end of the connecting frame, and an adjusting screw rod slides through the threaded sleeve by a thread, the connecting frame is slidably connected to the ring seat through a limiting through groove, and the adjusting screw rod is rotatably connected to the ring seat through a bearing frame, and the rotating ring is located in the control frame, and the connecting column is connected to the control frame.

[0015] In at least some embodiments, the support assembly includes a fixed column, a docking sleeve, a connecting rod, a limit slide rod, a limit slot, a limit column and a second compression spring. A docking sleeve is provided above the fixed column, a connecting rod is slidably inserted on the docking sleeve, a limit slide rod is provided on the top of the fixed column, a limit slot is provided on the side wall of the docking sleeve, a limit column is provided on the outer peripheral surface of the bottom end of the connecting rod, and a second compression spring is sleeved on the limit slide rod.

[0016] In at least some embodiments, the fixed column is fixedly installed on the top of the top cover, and the docking sleeve is slidably mounted on the top of the limiting slide rod, and the second compression spring is supported between the fixed column and the docking sleeve, the docking sleeve is mounted on the bottom of the connecting rod, and the limiting column is clamped in the limiting slot.

[0017] The present invention provides a high-efficiency axial flow hydro-turbine power generation device, which has the following beneficial effects:

[0018] The rotor of the present invention adopts a new type of anti-cavitation blade, which cooperates with each other through four groups of upper and lower rotors, and is connected and fixed by a fixing ring and two connecting screws. The installation and disassembly process is convenient, and the layered spiral structure can make the water flow more smoothly through the blade, reduce the separation of the water flow and the generation of vortexes, reduce the resistance of the water flow, and thus increase the flow rate and output.

[0019] In addition, the present invention is provided with a ventilation seat, which is supplied with air by an adjustable cooling fan, and the annular air duct is connected to the fixed cover to realize the cooling process of the power generation components and the main shaft, meet the changing requirements of the heat dissipation and cooling air volume under various conditions of the unit, reduce ventilation losses, and improve the cooling efficiency of the generator set.

[0020] In addition, the present invention is provided with an adjusting sleeve, and the adjusting sleeve can slide up and down along the second spline shaft through the cooperation between the second spline sleeve and the second spline shaft. When the equipment is disassembled and maintained, the handwheels at the bottom ends of the two adjusting screws can be rotated at the same time to drive the control frame to slide upward along the limiting through groove, and the adjusting sleeve is driven by the rotating ring to adjust upward, which can make the positioning block disengage from the positioning slot, thereby quickly realizing the separation process of the main shaft and the bottom shaft, and the two parts can be disassembled separately for replacement or repair without replacing the main shaft as a whole, thereby reducing maintenance costs and time.

[0021] In addition, the support assembly provided in the present invention is supported between the power generation chamber and the volute, and a stable support structure is achieved through the sliding fit of the docking sleeve and the connecting rod, and by utilizing the elastic action of the second compression spring. The power generation chamber and the volute are effectively connected into a whole, thereby increasing the rigidity of the overall structure, reducing the impact of vibration on the structure, and reducing the risk of structural fatigue, looseness, and even damage due to long-term vibration, thereby ensuring the safe and stable operation of the hydro-turbine generator set. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0023] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0024] In the attached picture:

[0025] Figure 1 A schematic structural diagram showing a cross-sectional view of a fixed cover and a power generation assembly of the present application;

[0026] Figure 2 This application shows Figure 1 The schematic diagram of the rotating perspective structure after the volute is removed is drawn;

[0027] Figure 3 The schematic diagram of the structure of the bottom shaft, rotating wheel, main shaft and adjusting sleeve of the present application is shown;

[0028] Figure 4 A schematic diagram showing the structure of the bottom shaft and the rotating wheel in the exploded state of the present application is shown;

[0029] Figure 5 A schematic diagram showing the structure of a portion of the bottom shaft, the main shaft and the ring seat of the present application from a cross-sectional perspective;

[0030] Figure 6 It shows a schematic structural diagram of the explosion state of part of the main shaft, the adjustment sleeve and the control frame of the present application;

[0031] Figure 7 A schematic diagram of the structure of the ventilation seat and the support assembly of the present application is shown;

[0032] Figure 8 A structural schematic diagram of the support assembly of the present application in an exploded state is shown.

[0033] List of reference numerals:

[0034] 1. volute; 101. water inlet; 102. top cover; 2. fixing cover; 201. ring seat; 202. mounting plate; 203. limiting slot; 3. bottom shaft; 301. first spline shaft; 302. fixing ring; 303. through hole; 304. connecting sleeve; 305. positioning slot; 4. runner; 401. mounting ring; 402. mounting sleeve; 403. first spline sleeve; 404. limiting hole; 405. connecting screw; 5. power generation assembly; 501. stator; 502. excitation seat; 503. support frame; 504. ventilation seat; 505. ring Air duct; 6. Main shaft; 601. Rotor; 602. Second spline shaft; 603. Support ring; 604. First compression spring; 7. Adjustment sleeve; 701. Second spline sleeve; 702. Positioning block; 703. Bearing groove; 704. Rotating ring; 705. Connecting column; 8. Control frame; 801. Connecting frame; 802. Threaded sleeve; 803. Adjusting screw rod; 9. Support assembly; 901. Fixed column; 902. Docking sleeve; 903. Connecting rod; 904. Limiting slide rod; 905. Limiting slot; 906. Limiting column; 907. Second compression spring. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Example 1: Please refer to Figures 1 to 8:

[0037] The present invention proposes a high-efficiency axial flow hydro-turbine power generation device, comprising: a volute 1, a fixed cover 2 is arranged on the top of the volute 1; a bottom shaft 3 is arranged at the center of the volute 1; four groups of runners 4 are arranged on the bottom shaft 3, and the four groups of runners 4 are distributed in an upper and lower parallel manner; a power generation component 5 is arranged on the top of the fixed cover 2; a main shaft 6 is arranged at the center of the power generation component 5 and the fixed cover 2; an adjustment sleeve 7 is arranged at the bottom of the main shaft 6, and the adjustment sleeve 7 corresponds to the position of the fixed cover 2; a control frame 8 is arranged on the adjustment sleeve 7; three support components 9 are arranged in the fixed cover 2, and the three support components 9 are distributed in a ring array manner;

[0038] A water inlet 101 is provided on one side of the volute 1 , a top cover 102 is provided on the top of the volute 1 , and the top cover 102 is located at the bottom end of the fixed cover 2 , and the bottom shaft 3 is rotatably connected to the top cover 102 through a bearing, and the support assembly 9 is arranged on the top of the top cover 102 .

[0039] In the present disclosure, Figure 3 and Figure 4 As shown, a first spline shaft 301 is provided at the middle section of the bottom shaft 3, a fixing ring 302 is provided at the bottom end of the bottom shaft 3, two through holes 303 are opened on the fixing ring 302, and the two through holes 303 are symmetrically distributed, a connecting sleeve 304 is provided at the top end of the bottom shaft 3, and three positioning grooves 305 are provided on the inner circumference of the connecting sleeve 304, and the three positioning grooves 305 are distributed in a ring array;

[0040] A mounting ring 401 is provided at the bottom of the lower runner 4, a mounting sleeve 402 is provided at the center of the runner 4, a first spline sleeve 403 is provided in the mounting sleeve 402, and the first spline shaft 301 passes through the first spline sleeve 403, and two limiting holes 404 are provided on the mounting sleeve 402, the limiting holes 404 correspond to the positions of the through holes 303, and the limiting holes 404 and the through holes 303 are simultaneously passed through by connecting screws 405 and controlled by locking nuts. In the present invention, the runner 4 adopts a new type of anti-cavitation blade, which is connected and fixed by the fixing ring 302 and the two connecting screws 405 through the upper and lower four groups of runners 4. The installation and disassembly process is convenient, and the layered spiral structure can be used to make the water flow more smoothly through the blades, reducing the separation of the water flow and the generation of vortices.

[0041] In the present disclosure, Figure 7As shown, a stator 501 is provided inside the power generation component 5, an excitation seat 502 is provided on the top of the power generation component 5, and the excitation seat 502 corresponds to the top of the main shaft 6, a support frame 503 is provided inside the power generation component 5, and the stator 501 is fixedly installed on the top of the support frame 503, a ventilation seat 504 is provided at the bottom of the support frame 503, and the main shaft 6 is rotatably connected to the support frame 503 and the ventilation seat 504 through bearings, an annular air duct 505 is provided at the bottom of the ventilation seat 504, and the annular air duct 505 is communicated with the fixed cover 2. In the present invention, a ventilation seat 504 is provided, and air is supplied to the ventilation seat 504 by an adjustable cooling fan, and the annular air duct 505 is communicated with the fixed cover 2, so as to realize the cooling process of the power generation component 5 and the main shaft 6, and meet the changing requirements of the heat dissipation and cooling air volume under multiple conditions of the unit.

[0042] In the present disclosure, Figure 5 and Figure 6 As shown, a ring seat 201 is arranged in the center of the fixed cover 2, and the ring seat 201 is a cylindrical cavity structure, and the main shaft 6 is rotatably connected with the ring seat 201 through a bearing, and the adjustment sleeve 7 and the control frame 8 are located in the ring seat 201, and two mounting plates 202 are arranged on the outer circumference of the ring seat 201, and the two mounting plates 202 are distributed in a symmetrical manner, and a limiting through groove 203 is arranged in the middle of the mounting plate 202;

[0043] A rotor 601 is provided at the upper half of the main shaft 6, and the rotor 601 is located in the power generation assembly 5, and the rotor 601 matches the stator 501. A second spline shaft 602 is provided at the bottom end of the main shaft 6, and a support ring 603 is provided on the main shaft 6, and the support ring 603 is located at the connection position between the main shaft 6 and the second spline shaft 602, and a first compression spring 604 is sleeved on the second spline shaft 602;

[0044] A second spline sleeve 701 is provided in the adjusting sleeve 7, and the adjusting sleeve 7 is slidably sleeved on the second spline shaft 602 through the second spline sleeve 701, and the first compression spring 604 is supported between the support ring 603 and the adjusting sleeve 7, three positioning blocks 702 are provided on the outer circumference of the bottom end of the adjusting sleeve 7, and the three positioning blocks 702 are distributed in a ring array, and the positioning blocks 702 are engaged with the positioning card slot 305, and a bearing groove 703 is provided at the top position of the adjusting sleeve 7, and a rotating ring 704 is rotatably installed on the bearing groove 703, and two connecting columns 705 are provided on the outer circumference of the rotating ring 704, and the two connecting columns 705 are symmetrically distributed;

[0045] The control frame 8 is a rectangular frame structure, and connecting frames 801 are provided on both sides of the control frame 8, and the two connecting frames 801 are distributed in a symmetrical manner, a threaded sleeve 802 is provided at the end of the connecting frame 801, and an adjusting screw 803 is slidably penetrated through the threaded sleeve 802 by means of a thread, the connecting frame 801 is slidably connected to the ring seat 201 through a limiting through groove 203, and the adjusting screw 803 is rotatably connected to the ring seat 201 through a bearing frame, and the rotating ring 704 is located in the control frame 8, and the connecting column 705 is connected to the control frame 8. The joint sleeve 7 cooperates with the second spline sleeve 701 and the second spline shaft 602, and the adjusting sleeve 7 can slide up and down along the second spline shaft 602. When the equipment is disassembled and maintained, the handwheels at the bottom of the two adjusting screws 803 can be rotated at the same time to drive the control frame 8 to slide upward along the limiting groove 203, and the adjusting sleeve 7 is driven by the rotating ring 704 to adjust upward, so that the positioning block 702 can be disengaged from the positioning slot 305, thereby quickly realizing the disassembly process of the main shaft 6 and the bottom shaft 3, and the two parts can be disassembled separately for replacement or repair.

[0046] In the present disclosure, Figure 7 and Figure 8 As shown, the support assembly 9 includes a fixed column 901, a docking sleeve 902, a connecting rod 903, a limiting slide bar 904, a limiting slot 905, a limiting column 906 and a second compression spring 907. A docking sleeve 902 is provided above the fixed column 901, and a connecting rod 903 is slidably inserted on the docking sleeve 902. A limiting slide bar 904 is provided on the top of the fixed column 901, and a limiting slot 905 is provided on the side wall of the docking sleeve 902. A limiting column 906 is provided on the outer peripheral surface of the bottom end of the connecting rod 903, and a second compression spring 907 is sleeved on the limiting slide bar 904;

[0047] The fixed column 901 is fixedly installed on the top of the top cover 102, and the docking sleeve 902 is slidably mounted on the top of the limiting slide rod 904, and the second compression spring 907 is supported between the fixed column 901 and the docking sleeve 902, the docking sleeve 902 is mounted on the bottom of the connecting rod 903, and the limiting column 906 is engaged with the limiting slot 905. The support assembly 9 provided in the present invention is supported between the power generation chamber and the volute 1, and a stable support structure is achieved through the sliding cooperation between the docking sleeve 902 and the connecting rod 903 and the elastic action of the second compression spring 907. The power generation chamber and the volute 1 can be effectively connected into a whole, thereby increasing the rigidity of the overall structure and reducing the influence of vibration on the structure.

[0048] Embodiment 2, based on embodiment 1, as Figure 5 and Figure 6As shown, a restoring spring is mounted on the adjusting screw rod 803, and the restoring spring is supported between the upper bearing frame and the threaded sleeve 802, and the bottom of the restoring spring is connected to the threaded sleeve 802. When the main shaft 6 and the bottom shaft 3 are docked, the hand wheels at the bottom ends of the two adjusting screw rods 803 are rotated at the same time to drive the control frame 8 to slide downward along the limiting groove 203, and the adjusting sleeve 7 is driven downward by the rotating ring 704 to make the positioning block 702 engage with the positioning slot 305. By utilizing the elastic effect of the first compression spring 604 and the restoring spring, and by the internal and external cooperation of the first compression spring 604 and the restoring spring, the connection position of the main shaft 6 and the bottom shaft 3 can always be in the center, thereby avoiding the center of the main shaft 6 from shifting and improving its operating reliability.

[0049] The working principle of this embodiment is as follows: water flows into the volute 1 through the water inlet 101, and the water flow can impact the impeller 4 to rotate continuously, wherein the impeller 4 adopts a new type of anti-cavitation blade, and the four groups of impellers 4 cooperate with each other, and are connected and fixed by a fixing ring 302 and two connecting screws 405. By utilizing its layered spiral structure, the water flow can flow through the impeller more smoothly, reducing the separation of the water flow and the generation of vortices; the ventilation seat 504 is supplied with air by an adjustable cooling fan, and the annular air duct 505 is connected to the fixed cover 2 , realize the cooling process of the power generation component 5 and the main shaft 6, and meet the changing requirements of the heat dissipation and cooling air volume of the unit under multiple conditions; when the main shaft 6 and the bottom shaft 3 are docked, the hand wheels at the bottom of the two adjusting screw rods 803 are rotated at the same time to drive the control frame 8 to slide downward along the limit slot 203, and the adjusting sleeve 7 is driven downward by the rotating ring 704 to adjust the positioning block 702 to the positioning slot 305, and the elastic effect of the first compression spring 604 and the restoring spring is utilized. The springs cooperate with each other inside and outside, so that the connection position of the main shaft 6 and the bottom shaft 3 is always in the center, avoiding the center of the main shaft 6 from being offset, and improving the reliability of its operation; through the cooperation between the second spline sleeve 701 and the second spline shaft 602, the adjustment sleeve 7 can slide up and down along the second spline shaft 602. When the equipment is disassembled and maintained, the hand wheels at the bottom of the two adjusting screws 803 can be rotated at the same time to drive the control frame 8 to slide upward along the limiting groove 203, and the adjusting sleeve 7 is driven by the rotating ring 704 to adjust upward, so that the positioning block 702 can be disengaged from the positioning card slot 305, thereby quickly realizing the separation process of the main shaft 6 and the bottom shaft 3, and the two parts can be disassembled separately for replacement or repair; wherein the support assembly 9 is supported between the power generation chamber and the volute 1, and a stable support structure is realized by sliding cooperation between the docking sleeve 902 and the connecting rod 903, and utilizing the elastic action of the second compression spring 907, so that the power generation chamber and the volute 1 can be effectively connected into a whole, increasing the rigidity of the overall structure and reducing the influence of vibration on the structure.

[0050] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A high-efficiency axial-flow hydro-turbine generator, characterized in that: include: A volute (1), wherein a fixed cover (2) is provided at the top of the volute (1); a bottom shaft (3) is provided at the center of the volute (1); four groups of rotating wheels (4) are provided on the bottom shaft (3), and the four groups of rotating wheels (4) are distributed in an upper and lower parallel manner; a power generation assembly (5) is provided at the top of the fixed cover (2); a main shaft (6) is provided at the center of the power generation assembly (5) and the fixed cover (2); an adjustment sleeve (7) is provided at the bottom of the main shaft (6), and the adjustment sleeve (7) corresponds to the position of the fixed cover (2); a control frame (8) is provided on the adjustment sleeve (7); three support assemblies (9) are provided in the fixed cover (2), and the three support assemblies (9) are distributed in a ring array manner; A water inlet (101) is provided on one side of the volute (1), a top cover (102) is provided on the top of the volute (1), and the top cover (102) is located at the bottom end of the fixed cover (2), and the bottom shaft (3) is rotatably connected to the top cover (102) via a bearing, and the support assembly (9) is arranged on the top of the top cover (102).

2. A high-efficiency axial flow hydro-turbine power generation device according to claim 1, characterized in that: A ring seat (201) is arranged at the center of the fixed cover (2), the ring seat (201) is a cylindrical cavity structure, the main shaft (6) is rotatably connected to the ring seat (201) through a bearing, and the adjustment sleeve (7) and the control frame (8) are located in the ring seat (201), two mounting plates (202) are arranged on the outer peripheral surface of the ring seat (201), and the two mounting plates (202) are distributed in a symmetrical manner, and a limiting through groove (203) is arranged in the middle position of the mounting plate (202).

3. A high-efficiency axial flow hydro-turbine power generation device according to claim 1, characterized in that: A first spline shaft (301) is provided at the middle section of the bottom shaft (3); a fixing ring (302) is provided at the bottom end of the bottom shaft (3); two through holes (303) are opened on the fixing ring (302); and the two through holes (303) are symmetrically distributed; a connecting sleeve (304) is provided at the top end of the bottom shaft (3); and three positioning grooves (305) are provided on the inner circumference of the connecting sleeve (304); and the three positioning grooves (305) are distributed in a ring array.

4. A high-efficiency axial flow hydro-turbine power generation device according to claim 1, characterized in that: A support ring (401) is provided at the bottom of the rotating wheel (4) below, and a mounting sleeve (402) is provided at the center of the rotating wheel (4). A first spline sleeve (403) is provided in the mounting sleeve (402), and the first spline shaft (301) passes through the first spline sleeve (403). Two limiting holes (404) are provided on the mounting sleeve (402), and the limiting holes (404) correspond to the positions of the through holes (303), and the limiting holes (404) and the through holes (303) are simultaneously passed through by a connecting screw (405) and controlled by a locking nut.

5. A high-efficiency axial flow hydro-turbine power generation device according to claim 1, characterized in that: The power generation component (5) is provided with a stator (501) inside, an excitation seat (502) is provided at the top of the power generation component (5), and the excitation seat (502) corresponds to the top of the main shaft (6), a support frame (503) is provided inside the power generation component (5), and the stator (501) is fixedly installed on the top of the support frame (503), a ventilation seat (504) is provided at the bottom of the support frame (503), and the main shaft (6) is rotatably connected to the support frame (503) and the ventilation seat (504) through a bearing, and an annular air duct (505) is provided at the bottom of the ventilation seat (504), and the annular air duct (505) is communicated with the fixed cover (2).

6. A high-efficiency axial flow hydro-turbine power generation device according to claim 1, characterized in that: A rotor (601) is provided at the upper half of the main shaft (6), and the rotor (601) is located in the power generation assembly (5), and the rotor (601) matches the stator (501). A second spline shaft (602) is provided at the bottom end of the main shaft (6), and a fixing ring (603) is provided on the main shaft (6), and the fixing ring (603) is located at the connection position between the main shaft (6) and the second spline shaft (602), and a first compression spring (603) is sleeved on the second spline shaft (602).

7. A high-efficiency axial flow hydro-turbine power generation device according to claim 1, characterized in that: The adjusting sleeve (7) is provided with a second spline sleeve (701), and the adjusting sleeve (7) is slidably mounted on the second spline shaft (602) through the second spline sleeve (701), and the first compression spring (603) is supported between the fixing ring (603) and the adjusting sleeve (7), three positioning blocks (702) are provided on the outer circumference of the bottom end of the adjusting sleeve (7), and the three positioning blocks (702) are distributed in a ring array, and the positioning blocks (702) are engaged with the positioning card slot (305), and the adjusting sleeve (7) is provided with a bearing groove (703) at the top end, and a rotating ring (704) is rotatably mounted on the bearing groove (703), and two connecting columns (705) are provided on the outer circumference of the rotating ring (704), and the two connecting columns (705) are distributed in a symmetrical manner.

8. The high-efficiency axial-flow hydro-turbine power generation device according to claim 1, characterized in that: The control frame (8) is a rectangular frame structure, and connecting frames (801) are provided on both sides of the control frame (8), and the two connecting frames (801) are distributed in a symmetrical manner, and a threaded sleeve (802) is provided at the end of the connecting frame (801), and an adjusting screw rod (802) is slidably penetrated through the threaded sleeve (802) by means of a thread, and the connecting frame (801) is slidably connected to the ring seat (201) through a limiting through groove (203), and the adjusting screw rod (802) is rotatably connected to the ring seat (201) through a bearing frame, and the rotating ring (704) is located in the control frame (8), and the connecting column (705) is connected to the control frame (8).

9. A high-efficiency axial flow hydro-turbine power generation device according to claim 1, characterized in that: The support assembly (9) comprises a fixed column (901), a docking sleeve (902), a connecting rod (903), a limiting slide bar (904), a limiting groove (905), a limiting column (906) and a second compression spring (907); a docking sleeve (902) is provided above the fixed column (901); a connecting rod (903) is slidably inserted on the docking sleeve (902); a limiting slide bar (904) is provided on the top of the fixed column (901); a limiting groove (905) is provided on the side wall of the docking sleeve (902); a limiting column (906) is provided on the outer peripheral surface of the bottom end of the connecting rod (903); and a second compression spring (907) is sleeved on the limiting slide bar (904).

10. A high-efficiency axial flow hydro turbine generator according to claim 9, characterized in that , The fixed column (901) is fixedly installed on the top of the top cover (102), and the docking sleeve (902) is slidably mounted on the top of the limiting slide rod (904), and the second compression spring (907) is supported between the fixed column (901) and the docking sleeve (902), the docking sleeve (902) is mounted on the bottom of the connecting rod (903), and the limiting column (906) is clamped with the limiting slot (905).

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