Water turbine convenient to overhaul

Abstract

The invention relates to the technical field of hydroelectric generation, and provides a water turbine convenient to overhaul, which comprises a water turbine main body, a first flow guide pipe is detachably connected to the upper part of the water turbine main body, a first assembly valve is detachably connected to the top end of the first flow guide pipe, and a second flow guide pipe is detachably connected to the top end of the first assembly valve; the top end of the second flow guide pipe is detachably connected with a transfer water tank; a detachable connecting structure is adopted in the whole system, the double functions of opening, closing and disassembling of the assembly valve are combined, water flow at the fault position can be rapidly cut off by closing the corresponding valve in the fault process, the whole system does not need to be emptied after shutdown, the maintenance time is remarkably shortened, the maintenance threshold is low, and non-professional personnel can conveniently conduct maintenance.

Description

Technical Field

[0001] The present invention relates to the technical field of hydropower generation, and specifically to a water turbine that is convenient for maintenance. Background Art

[0002] As the core power equipment for hydropower generation, the function of a water turbine is to efficiently convert the energy of water flow into rotational mechanical energy, and it is applied to scenarios such as hydropower stations, remote villages, and mountainous areas; limited by the lack of professional maintenance personnel and financial support, remote villages tend to choose small and easy-to-maintain water turbine units to reduce the maintenance difficulty and cost burden, so as to achieve a balance between technical feasibility and economic rationality.

[0003] The Chinese patent application number is: CN202110884346.2, a pump-turbine applicable to small pumped-storage power stations. The casings of the volute, fixed guide vanes, movable guide vanes, runner, and draft tube are each connected into a whole through bolts; 2 bearings are respectively installed at the mating positions of the fixed guide vanes and the movable guide vanes to provide support for the rotating shaft; the runner blade regulating mechanism is inside the runner of the unit, and the movable guide vane blade regulating mechanism is outside the unit. In the water turbine operating condition of the above invention, the pressurized water body flows through the volute and the guide vane area flow passage through the pressure pipeline, enters the runner area at a certain angle through the guide vane blades, impacts the runner and drives the shaft system to rotate, converting the energy of the water flow into rotational mechanical energy; the pump operating condition is the opposite; the pump-turbine of the above invention has a unique, compact structure, small volume, occupies less space, can realize the functions of forward power generation and reverse pumping, and the forward and reverse efficiencies are both above 84%.

[0004] The prior art provides water turbine units with a compact structure and extremely small floor space, but the structure is tightly complex, which is not conducive to non-professional personnel for maintenance, and it is difficult to promote in scenarios such as remote villages.

[0005] In summary, therefore, the present invention provides a water turbine that is convenient for maintenance to solve the above problems. Summary of the Invention

[0006] The present invention provides a water turbine that is convenient for maintenance. By designing a modular combination of the water turbine structure, it solves the problem that the water turbine structure in the prior art is tightly complex and not conducive to non-professional personnel for maintenance.

[0007] The specific technical solution of the present invention is as follows: A water turbine convenient for maintenance, including a water turbine main body, a first draft tube is detachably connected above the water turbine main body, a first assembly valve is detachably connected to the top end of the first draft tube, a second draft tube is detachably connected to the top end of the first assembly valve, a transfer water tank is detachably connected to the top end of the second draft tube, a water inlet pipe is arranged at the top of the transfer water tank, a third draft tube is arranged on the side of the water inlet pipe, the third draft tube is detachably connected to the transfer water tank, a second assembly valve is detachably connected to the bottom end of the third draft tube, a water pump is detachably connected to the bottom end of the second assembly valve, a fourth draft tube is detachably connected to the side of the water pump, one end of the fourth draft tube is detachably connected to a third assembly valve, one end of the third assembly valve is detachably connected to a fifth draft tube, one end of the fifth draft tube is detachably connected to a drainage tank, a down pipe is detachably connected below the water turbine main body, and the bottom end of the down pipe is detachably connected to the drainage tank.

[0008] In the present invention, the water turbine main body is a commonly used device in the prior art for efficiently converting the energy of water flow into rotational mechanical energy; in the initial state, water flows into the transfer water tank from the water inlet pipe, flows into the second draft tube, and passes through the first assembly valve and the first draft tube into the water turbine main body, then leaves the water turbine main body through the down pipe, enters the drainage tank, and finally is discharged; when the electricity demand is small or the water flow is unstable, the water pump can be started to pump water from the drainage tank through the fifth draft tube, and through the third assembly valve, the fourth draft tube, the second assembly valve and the third draft tube, the water is transported to the transfer water tank at a high place, so as to achieve energy storage or enhance the operation stability; the first assembly valve, the second assembly valve and the third assembly valve can not only open and close the water flow, but also facilitate disassembly and assembly, so that when the device fails, the water flow at the faulty part can be quickly cut off, and the faulty part can be repaired or replaced.

[0009] Preferably, a regulating pump is arranged on the side of the transfer water tank.

[0010] In the present invention, the regulating pump is used to regulate the water flow of the transfer water tank, further enhancing the flexibility and stability of the device operation.

[0011] Preferably, a drain pipe is detachably connected to one side of the top of the drainage tank.

[0012] In the present invention, the drain pipe at a higher position enables a part of water to be temporarily stored in the drainage tank, facilitating the subsequent pumping of water by the water pump.

[0013] Preferably, in a technical solution, a limiting plate is fixedly connected to the bottom of the drainage tank. One side of the limiting plate is rotatably connected to a rotating shaft. One end of the rotating shaft is fixedly connected to an operation disc. The end of the rotating shaft away from the operation disc is rotatably connected to a first rotating plate. The end of the first rotating plate away from the rotating shaft is rotatably connected to a second rotating plate. The end of the second rotating plate away from the first rotating plate is rotatably connected to a balance rod. A pushing plate is arranged on the side surface of the second rotating plate. The balance rod is rotatably connected to the pushing plate. One side of the pushing plate is detachably connected to a water separation plate.

[0014] Preferably, in a technical solution, a limiting groove is formed on one side of the limiting plate close to the balance rod. The balance rod is slidably connected to the limiting groove.

[0015] Preferably, in a technical solution, a sliding column is rotatably connected to the middle of the pushing plate. The sliding column is slidably connected to the limiting groove.

[0016] In the present invention, the operation disc is used to control the rotation of the rotating shaft. When the rotating shaft rotates, it drives the first rotating plate to rotate, thereby driving the second rotating plate to rotate, and drives the pushing plate to move by using the balance rod. When the pushing plate moves, the sliding column and the balance rod first move linearly along the limiting groove, thereby linearly pushing out the water separation plate to separate the water separation plate from the drainage tank. When the sliding column moves to the maximum distance in the limiting groove, the sliding column cannot move further. At this time, the operation disc continues to control the rotation of the rotating shaft, so that the balance rod enters the branched path of the limiting groove and performs a curved motion, thereby rotating the water separation plate relative to the drainage tank. When a fault occurs inside the drainage tank and needs to be repaired, first separate the water separation plate and the drainage tank through linear motion, drain the internal participating water, and avoid affecting the subsequent movement of the water separation plate. Then rotate the water separation plate to completely open the side surface of the drainage tank, which is convenient for the staff to perform repairs. The overall operation is convenient and fast.

[0017] Preferably, in a technical solution, a sliding groove is formed on the top side surface of the drainage tank. A plurality of protection components are slidably connected inside the sliding groove.

[0018] Preferably, in a technical solution, the protection component includes a first protection plate. The first protection plate is slidably connected inside the sliding groove. A first diamond-shaped plate is rotatably connected to the middle of the first protection plate. A second diamond-shaped plate is rotatably connected below the first diamond-shaped plate. One end of the second diamond-shaped plate is rotatably connected to a third diamond-shaped plate. One end of the first diamond-shaped plate is rotatably connected to a fourth diamond-shaped plate. The fourth diamond-shaped plate is rotatably connected to the third diamond-shaped plate. A second protection plate is rotatably connected above the fourth diamond-shaped plate.

[0019] Preferably, in a technical solution, a plurality of secondary protection plates are arranged between the first protection plate and the second protection plate.

[0020] Preferably, a technical solution is that a transmission groove is provided in the middle of the protection plate, a transmission block is slidably connected to the inner side of the transmission groove, and the bottom end of the transmission block is rotatably connected to the first diamond bar plate.

[0021] In the present invention, the first protection plate, the second protection plate and the secondary protection plate block sundries that may fall above the drainage tank, preventing the sundries from blocking the pipes inside the drainage tank, while leaving a gap for observing the internal operation state of the drainage tank; further, when it is necessary to repair the drainage tank from the top, any protection plate can be directly pulled, so that the transmission block slides along the transmission groove and the diamond bar plate is contracted, thereby reducing the distance between the first protection plate and the second protection plate, creating an open space at the top of the drainage tank for easy observation and maintenance by the staff.

[0022] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, by adopting a detachable connection structure throughout the system and combining the opening and closing and disassembly functions of the assembly valve, the water flow at the faulty part can be quickly cut off by closing the corresponding valve in case of a fault, without the need to stop the machine and empty the entire system, significantly shortening the maintenance time, with a low maintenance threshold and being convenient for non-professional personnel to perform maintenance.

[0023] 2. In the present invention, by driving the rotating shaft through the operation panel, the water separation plate is first linearly separated to drain the residual water, and then rotated to open, realizing the complete exposure of the side of the drainage tank, solving the problems of narrow internal space and residual water affecting operation during maintenance.

[0024] 3. In the present invention, the diamond bar plate linkage structure in the chute can quickly open the top maintenance opening by pulling, which not only blocks sundries from falling in, but also can flexibly expose the internal pipes during maintenance, balancing the protection and operability.

[0025] 4. In the present invention, through the closed-loop design of the water pump and the transfer water tank, low-demand energy storage and unstable flow regulation are achieved. When the electricity load is small or the water flow fluctuates, the water pump pumps the water in the drainage tank back to the transfer water tank to form water energy reserves, avoiding waste of water energy; at the same time, the flow of the transfer water tank is precisely controlled by the regulating pump to ensure that the water turbine operates efficiently under different working conditions, improving the adaptability of the system to complex hydrological environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the drain pipe of the present invention; Figure 3 is a schematic diagram of the balance bar of the present invention; Figure 4 is a schematic diagram of the operation panel of the present invention; Figure 5 is a schematic diagram of the limiting groove of the present invention; Figure 6 It is a schematic diagram of the push plate of the present invention; Figure 7 It is a schematic diagram of the chute of the present invention; Figure 8 It is a schematic diagram of the first protection plate of the present invention.

[0027] The reference numerals are: 1, water turbine main body; 11, first draft tube; 12, first assembly valve; 13, second draft tube; 14, downcomer; 2, transfer water tank; 21, water inlet pipe; 22, third draft tube; 23, second assembly valve; 24, regulating pump; 3, water pump; 31, fourth draft tube; 32, third assembly valve; 33, fifth draft tube; 4, drainage tank; 41, drain pipe; 42, chute; 5, limiting plate; 51, operation panel; 52, rotating shaft; 53, first rotating plate; 54, second rotating plate; 55, balance rod; 56, push plate; 57, water separation plate; 58, limiting groove; 59, sliding column; 6, protection assembly; 61, first protection plate; 62, first rhombic plate; 63, second rhombic plate; 64, third rhombic plate; 65, fourth rhombic plate; 66, second protection plate; 67, secondary protection plate; 68, transmission groove; 69, transmission block. Detailed implementation mode

[0028] The following further describes in detail the implementation mode of the present invention in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0029] As Figure 1-8 shown, the present invention provides a water turbine convenient for maintenance, including a water turbine main body 1. A first draft tube 11 is detachably connected above the water turbine main body 1. The top end of the first draft tube 11 is detachably connected with a first assembly valve 12. The top end of the first assembly valve 12 is detachably connected with a second draft tube 13. The top end of the second draft tube 13 is detachably connected with a transfer water tank 2. A water inlet pipe 21 is arranged at the top of the transfer water tank 2. A third draft tube 22 is arranged on the side of the water inlet pipe 21. The third draft tube 22 is detachably connected with the transfer water tank 2. The bottom end of the third draft tube 22 is detachably connected with a second assembly valve 23. The bottom end of the second assembly valve 23 is detachably connected with a water pump 3. A fourth draft tube 31 is detachably connected to the side of the water pump 3. One end of the fourth draft tube 31 is detachably connected with a third assembly valve 32. One end of the third assembly valve 32 is detachably connected with a fifth draft tube 33. One end of the fifth draft tube 33 is detachably connected with a drainage tank 4. A downcomer 14 is detachably connected below the water turbine main body 1. The bottom end of the downcomer 14 is detachably connected with the drainage tank 4.

[0030] A regulating pump 24 is arranged on the side of the transfer water tank 2.

[0031] One side of the top of the drainage tank 4 is detachably connected with a drain pipe 41.

[0032] The bottom of the drainage tank 4 is fixedly connected with a limiting plate 5. One side of the limiting plate 5 is rotatably connected with a rotating shaft 52. One end of the rotating shaft 52 is fixedly connected with an operation disk 51. The end of the rotating shaft 52 far away from the operation disk 51 is rotatably connected with a first rotating plate 53. One end of the first rotating plate 53 far away from the rotating shaft 52 is rotatably connected with a second rotating plate 54. One end of the second rotating plate 54 far away from the first rotating plate 53 is rotatably connected with a balance rod 55. A push plate 56 is arranged on the side surface of the second rotating plate 54. The balance rod 55 is rotatably connected with the push plate 56. One side of the push plate 56 is detachably connected with a water separation plate 57.

[0033] A limiting groove 58 is opened on one side of the limiting plate 5 close to the balance rod 55. The balance rod 55 is slidably connected with the limiting groove 58.

[0034] A sliding column 59 is rotatably connected to the middle of the push plate 56. The sliding column 59 is slidably connected with the limiting groove 58.

[0035] A sliding groove 42 is opened on the side surface of the top of the drainage tank 4. A plurality of protection components 6 are slidably connected inside the sliding groove 42.

[0036] The protection component 6 includes a first protection plate 61. The first protection plate 61 is slidably connected inside the sliding groove 42. A first rhombic plate 62 is rotatably connected to the middle of the first protection plate 61. A second rhombic plate 63 is rotatably connected below the first rhombic plate 62. One end of the second rhombic plate 63 is rotatably connected with a third rhombic plate 64. One end of the first rhombic plate 62 is rotatably connected with a fourth rhombic plate 65. The fourth rhombic plate 65 is rotatably connected with the third rhombic plate 64. A second protection plate 66 is rotatably connected above the fourth rhombic plate 65.

[0037] A plurality of secondary protection plates 67 are arranged between the first protection plate 61 and the second protection plate 66.

[0038] A transmission groove 68 is opened in the middle of the secondary protection plate 67. A transmission block 69 is slidably connected inside the transmission groove 68. The bottom end of the transmission block 69 is rotatably connected with the first rhombic plate 62.

[0039] Embodiment 1: A water turbine convenient for maintenance, comprising a water turbine main body 1. A first draft tube 11 is detachably connected above the water turbine main body 1. The top end of the first draft tube 11 is detachably connected to a first assembly valve 12. The top end of the first assembly valve 12 is detachably connected to a second draft tube 13. The top end of the second draft tube 13 is detachably connected to a transfer water tank 2. An inlet pipe 21 is arranged at the top of the transfer water tank 2. A third draft tube 22 is arranged on the side of the inlet pipe 21. The third draft tube 22 is detachably connected to the transfer water tank 2. The bottom end of the third draft tube 22 is detachably connected to a second assembly valve 23. The bottom end of the second assembly valve 23 is detachably connected to a water pump 3. A fourth draft tube 31 is detachably connected to the side of the water pump 3. One end of the fourth draft tube 31 is detachably connected to a third assembly valve 32. One end of the third assembly valve 32 is detachably connected to a fifth draft tube 33. One end of the fifth draft tube 33 is detachably connected to a drainage tank 4. A down pipe 14 is detachably connected below the water turbine main body 1. The bottom end of the down pipe 14 is detachably connected to the drainage tank 4.

[0040] An adjustment pump 24 is arranged on the side of the transfer water tank 2.

[0041] One side of the top of the drainage tank 4 is detachably connected to a drain pipe 41.

[0042] In this embodiment, in the initial state, water flows into the transfer water tank 2 from the inlet pipe 21. After being preliminarily converged in the transfer water tank 2, it successively passes through the second draft tube 13, the first assembly valve 12 and the first draft tube 11, and finally flows into the water turbine main body 1. After the water turbine main body 1 converts the water flow energy into rotational mechanical energy, the waste water is discharged into the drainage tank 4 through the down pipe 14 below it, and is discharged from the system through the drain pipe 41 on one side of the top of the drainage tank 4, completing the water energy conversion and drainage process under normal working conditions.

[0043] When the electricity demand is small or the water flow is unstable, the system starts the water pump 3 to enter the energy storage or stable operation mode. The water pump 3 pumps water from the drainage tank 4 through the fifth draft tube 33. The water flow enters the water pump 3 through the third assembly valve 32 and the fourth draft tube 31. The water flow after being pressurized by the water pump 3 is reversely transported to the transfer water tank 2 through the second assembly valve 23 and the third draft tube 22, forming a recycling of the water flow, realizing the bidirectional flow of water energy between the transfer water tank 2 and the drainage tank 4, thereby storing excess water energy or supplementing unstable water flow and enhancing the operation stability of the system.

[0044] The adjustment pump 24 on the side of the transfer water tank 2 can dynamically adjust the water flow rate in the transfer water tank 2 according to the actual operation requirements. When the upstream incoming water flow fluctuates, the adjustment pump 24 ensures the stable water flow into the water turbine main body 1 by increasing or decreasing the water discharge rate of the transfer water tank 2, avoiding the decline of the water turbine efficiency or equipment damage caused by sudden changes in the flow rate.

[0045] The drain pipe 41 at the top of the drain tank 4 is at a relatively high position, which allows the drain tank 4 to temporarily store a certain amount of water, providing a stable water suction source for the water pump 3, preventing the water pump 3 from idling due to too low water level, and ensuring the continuity of the circulating water pumping process.

[0046] All the diversion pipes and assembly valves in the system are detachably connected. During normal operation, the assembly valves are in the open state to ensure unobstructed water flow paths; when a component fails, the corresponding assembly valve can be quickly closed to cut off the water flow in the faulty part, and at the same time, the faulty component can be quickly disassembled, repaired or replaced through the detachable structure without emptying the entire system, significantly shortening the maintenance time.

[0047] Embodiment 2: This embodiment is basically the same as Embodiment 1, the difference being that: a limiting plate 5 is fixedly connected to the bottom of the drain tank 4, one side of the limiting plate 5 is rotatably connected to a rotating shaft 52, one end of the rotating shaft 52 is fixedly connected to an operating disk 51, the end of the rotating shaft 52 away from the operating disk 51 is rotatably connected to a first rotating plate 53, the end of the first rotating plate 53 away from the rotating shaft 52 is rotatably connected to a second rotating plate 54, the end of the second rotating plate 54 away from the first rotating plate 53 is rotatably connected to a balance rod 55, a pushing plate 56 is arranged on the side surface of the second rotating plate 54, the balance rod 55 is rotatably connected to the pushing plate 56, and a water isolation plate 57 is detachably connected to one side of the pushing plate 56.

[0048] A limiting groove 58 is formed on the side of the limiting plate 5 close to the balance rod 55, and the balance rod 55 is slidably connected to the limiting groove 58.

[0049] A sliding column 59 is rotatably connected to the middle of the pushing plate 56, and the sliding column 59 is slidably connected to the limiting groove 58.

[0050] In this embodiment, when it is necessary to repair the inside of the drain tank 4, the operator rotates the operating disk 51, the operating disk 51 drives the rotating shaft 52 to rotate, and the rotating shaft 52 then drives the first rotating plate 53 to rotate around its connection point with the rotating shaft 52. When the first rotating plate 53 rotates, it pulls or pushes the second rotating plate 54, causing the second rotating plate 54 to rotate with its connection point with the first rotating plate 53 as the fulcrum.

[0051] When the second rotating plate 54 rotates, the pushing plate 56 on its side moves with it, and the sliding column 59 in the middle of the pushing plate 56 and the connected balance rod 55 both slide in the limiting groove 58 formed on the limiting plate 5. In the initial stage, the sliding column 59 and the balance rod 55 slide along the straight path of the limiting groove 58, driving the pushing plate 56 and the water isolation plate 57 detachably connected to one side of it to move in a straight line, gradually separating the water isolation plate 57 from the drain tank 4 and discharging the residual water in the drain tank 4 to avoid the residual water affecting the subsequent maintenance operations.

[0052] When the sliding column 59 and the balance rod 55 slide to the maximum distance of the straight path in the limit groove 58, the sliding column 59 cannot continue to slide linearly. At this time, when the operation disk 51 is rotated continuously, the rotating shaft 52 drives the first rotating plate 53 and the second rotating plate 54 to rotate further. The balance rod 55 enters the branch path of the limit groove 58 and performs a curvilinear motion. The pushing plate 56 and the water-blocking plate 57 are driven by the balance rod 55 to rotate relative to the drainage tank 4, completely opening the side surface of the drainage tank 4 and providing sufficient maintenance space for the staff. During the whole process, by rotating the operation disk 51 and using the limitation of the movement trajectories of the sliding column 59 and the balance rod 55 by the limit groove 58, the action that the water-blocking plate 57 first separates from the drainage tank 4 linearly and then rotates to open the side surface of the drainage tank 4 is realized. The operation is convenient and fast, effectively improving the convenience of the internal maintenance of the drainage tank 4.

[0053] Embodiment 3: This embodiment is basically the same as Embodiment 1, the difference being that: a chute 42 is provided on the top side of the drainage tank 4, and a plurality of protection components 6 are slidably connected inside the chute 42.

[0054] The protection component 6 includes a first protection plate 61, which is slidably connected inside the chute 42. A first diamond-shaped plate 62 is rotatably connected to the middle of the first protection plate 61. A second diamond-shaped plate 63 is rotatably connected below the first diamond-shaped plate 62. One end of the second diamond-shaped plate 63 is rotatably connected to a third diamond-shaped plate 64. One end of the first diamond-shaped plate 62 is rotatably connected to a fourth diamond-shaped plate 65. The fourth diamond-shaped plate 65 is rotatably connected to the third diamond-shaped plate 64. A second protection plate 66 is rotatably connected above the fourth diamond-shaped plate 65.

[0055] A plurality of secondary protection plates 67 are provided between the first protection plate 61 and the second protection plate 66.

[0056] A transmission groove 68 is provided in the middle of the secondary protection plate 67, and a transmission block 69 is slidably connected inside the transmission groove 68. The bottom end of the transmission block 69 is rotatably connected to the first diamond-shaped plate 62.

[0057] In this embodiment, the protection component 6 composed of the first protection plate 61, the second protection plate 66 and a plurality of secondary protection plates 67 is slidably connected in the chute 42 on the top side of the drainage tank 4. Each protection plate forms a linkage structure through rotational connections such as the first diamond-shaped plate 62, the second diamond-shaped plate 63, the third diamond-shaped plate 64, and the fourth diamond-shaped plate 65. The transmission block 69 is slidably connected in the transmission groove 68 in the middle of the secondary protection plate 67, and the bottom end of the transmission block 69 is rotatably connected to the first diamond-shaped plate 62.

[0058] During normal operation, the protection component 6 covers the top of the drainage tank 4. The first protection plate 61, the second protection plate 66 and the secondary protection plates 67 form a continuous protection surface through the support of the diamond-shaped plates, blocking the sundries that may fall from above. At the same time, the gaps between the diamond-shaped plates facilitate observing the internal state of the drainage tank 4.

[0059] When maintenance is required from the top, any protection plate is pulled to slide within the chute 42. During the pulling process, the transmission block 69 slides along the transmission groove 68 of the protection plate 67, driving the first diamond-shaped strip plate 62 to rotate. Further, through the linkage of the second diamond-shaped strip plate 63, the third diamond-shaped strip plate 64, and the fourth diamond-shaped strip plate 65, the entire diamond-shaped strip structure contracts, and the distance between the first protection plate 61 and the second protection plate 66 decreases, thereby forming an open space at the top of the drainage tank 4, facilitating the staff to observe or maintain the internal components, and realizing the combination of the functions of protection and convenient maintenance.

[0060] The embodiments of the present invention are given for the purposes of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations on the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A water turbine convenient for maintenance, characterized in that: It includes a water turbine main body (1). A first draft tube (11) is detachably connected above the water turbine main body (1). The top end of the first draft tube (11) is detachably connected to a first assembly valve (12). The top end of the first assembly valve (12) is detachably connected to a second draft tube (13). The top end of the second draft tube (13) is detachably connected to a transfer water tank (2). An inlet pipe (21) is provided at the top of the transfer water tank (2). A third draft tube (22) is provided on the side of the inlet pipe (21). The third draft tube (22) is detachably connected to the transfer water tank (2). The bottom end of the third draft tube (22) is detachably connected to a second assembly valve (23). The bottom end of the second assembly valve (23) is detachably connected to a water pump (3). A fourth draft tube (31) is detachably connected to the side of the water pump (3). One end of the fourth draft tube (31) is detachably connected to a third assembly valve (32). One end of the third assembly valve (32) is detachably connected to a fifth draft tube (33). One end of the fifth draft tube (33) is detachably connected to a drainage tank (4). A down pipe (14) is detachably connected below the water turbine main body (1). The bottom end of the down pipe (14) is detachably connected to the drainage tank (4).

2. The water turbine according to claim 1, which is convenient for maintenance, is characterized in that: An adjustment pump (24) is provided on the side of the transfer water tank (2).

3. The water turbine according to claim 1, which is convenient for maintenance, is characterized in that: A drain pipe (41) is detachably connected to one side of the top of the drainage tank (4).

4. A water turbine convenient for maintenance according to claim 1, characterized in that: A limit plate (5) is fixedly connected to the bottom of the drainage tank (4). One side of the limit plate (5) is rotatably connected to a rotating shaft (52). One end of the rotating shaft (52) is fixedly connected to an operation disc (51). The end of the rotating shaft (52) away from the operation disc (51) is rotatably connected to a first rotating plate (53). The end of the first rotating plate (53) away from the rotating shaft (52) is rotatably connected to a second rotating plate (54). The end of the second rotating plate (54) away from the first rotating plate (53) is rotatably connected to a balance rod (55). A push plate (56) is provided on the side of the second rotating plate (54). The balance rod (55) is rotatably connected to the push plate (56). A water separation plate (57) is detachably connected to one side of the push plate (56).

5. The water turbine according to claim 4, which is convenient for maintenance, is characterized in that: A limit groove (58) is opened on one side of the limit plate (5) close to the balance rod (55). The balance rod (55) is slidably connected to the limit groove (58).

6. The water turbine according to claim 5, characterized in that: A sliding column (59) is rotatably connected to the middle of the push plate (56). The sliding column (59) is slidably connected to the limit groove (58).

7. A water turbine convenient for maintenance according to claim 1, characterized in that: A chute (42) is opened on the side surface of the top of the drainage tank (4). A plurality of protection components (6) are slidably connected inside the chute (42).

8. A water turbine convenient for maintenance according to claim 7, characterized in that: The protection component (6) includes a first protection plate (61), the first protection plate (61) is slidably connected to the inner side of the chute (42), a first diamond-shaped strip plate (62) is rotatably connected to the middle of the first protection plate (61), a second diamond-shaped strip plate (63) is rotatably connected below the first diamond-shaped strip plate (62), one end of the second diamond-shaped strip plate (63) is rotatably connected to a third diamond-shaped strip plate (64), one end of the first diamond-shaped strip plate (62) is rotatably connected to a fourth diamond-shaped strip plate (65), the fourth diamond-shaped strip plate (65) is rotatably connected to the third diamond-shaped strip plate (64), and a second protection plate (66) is rotatably connected above the fourth diamond-shaped strip plate (65).

9. The water turbine according to claim 8, which is convenient for maintenance, is characterized in that: A number of secondary protection plates (67) are arranged between the first protection plate (61) and the second protection plate (66).

10. A turbine facilitating maintenance according to claim 9, characterized in that: A transmission groove (68) is formed in the middle of the secondary protection plate (67), a transmission block (69) is slidably connected to the inner side of the transmission groove (68), and the bottom end of the transmission block (69) is rotatably connected to the first diamond-shaped strip plate (62).

Images