Auxiliary maintenance platform for hydropower station equipment

Abstract

The invention relates to the technical field of water turbine maintenance platforms, and discloses a hydropower station equipment auxiliary maintenance platform which comprises a base, a water turbine set is arranged in the base, one side of the water turbine set communicates with a water inlet pipe, and the bottom of the water turbine set communicates with a draft tube; through the arrangement of the hoisting mechanism, water stored in the water inlet pipe can be used as a power source for hoisting the disassembly part of the hydraulic turbine set, compared with traditional hoisting equipment, power equipment such as a winch and a hydraulic system does not need to be adopted, the building difficulty is lowered, the building efficiency is effectively improved, and then the overhauling efficiency is improved; water stored in a water inlet pipe is guided out to act on an adjusting plate and an ejector rod, a mounting block and an adjusting block can be driven to move upwards, then the rapid hoisting effect is achieved, operation is easy and convenient, water resources in a hydropower station are effectively utilized, and the utilization rate of the water resources is increased; the problems that an existing maintenance platform is small in water utilization rate and not convenient to build rapidly are solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of turbine maintenance platforms, and particularly relates to an auxiliary maintenance platform for hydropower station equipment. Background Art

[0002] A hydropower station is a comprehensive engineering facility that converts water energy into electrical energy. Generally, it includes a reservoir formed by water retaining and water discharging buildings, a water intake system of the hydropower station, a power house, and electromechanical equipment, etc. The high-level water in the reservoir flows into the power house through the water intake system to drive the water turbine generator set to generate electrical energy, and then is input into the power grid through a step-up transformer, a switchyard, and a transmission line. When the hydropower station is operating, it will be affected by the compensation regulation between different rivers. To ensure the normal operation of the hydropower station, attention should be paid to the maintenance of the power station. After the water turbine unit has been operating for a period of time, it needs to be maintained. An overhaul platform needs to be erected in the air, and components such as a winch and a hydraulic system are used to hoist the disassembled components of the water turbine unit. After hoisting, the hydraulic system is used to transfer it to the ground for maintenance.

[0003] After retrieval, a Chinese patent with the patent number CN218522162U discloses a turbine maintenance platform. This maintenance platform controls the lifting of the maintenance platform components through an adjustment group to facilitate the maintenance of turbine rotors at different heights, and further improves its safety through a limit component, reducing safety risks and improving work efficiency. Although this maintenance platform can achieve the maintenance of turbine rotors at different heights, when the platform is in use, there are still problems such as:

[0004] 1. The platform structure is a fixed platform, which increases the occupied space when not in maintenance, and is not conducive to the daily inspection operations of the staff;

[0005] 2. Most of the common water turbine units are buried underground. Only a small part of the components of the water turbine unit are located on the ground, and most of the components are located inside a pre-set concrete cavity. Although the above platform can quickly maintain turbine rotors at different heights, it still requires a hoisting device to cooperate to disassemble the components of the water turbine unit. Erecting a hoisting device in the machine room will increase the overall load of the machine room building, which is not conducive to long-term use;

[0006] 3. Since the temporarily erected hoisting platform during maintenance is relatively heavy as a whole due to equipment such as the hydraulic system and the winch, it is not easy to quickly erect, resulting in a low maintenance efficiency of this maintenance platform. A large amount of time is spent on erecting the platform, the shutdown time of the water turbine unit is too long, affecting the power generation efficiency, and the high-quality water resources cannot be effectively utilized;

[0007] Therefore, the present invention designs a new type of auxiliary maintenance platform for hydropower station equipment to solve the problems existing in the above-mentioned prior art. Summary of the Invention

[0008] (1) Technical problems to be solved

[0009] In view of the deficiencies of the prior art, the present invention provides an auxiliary maintenance platform for hydropower station equipment, which has the advantages of being able to be quickly erected and having a small occupied space, and solves the problems of low water utilization rate and inconvenience in quick erection of the existing maintenance platform.

[0010] (2) Technical solutions

[0011] In order to achieve the above purposes of quick erection, small occupied space and efficient utilization of water resources, the present invention provides the following technical solutions:

[0012] An auxiliary maintenance platform for hydropower station equipment, comprising: a base, a water turbine unit is arranged inside the base, a water inlet pipe is communicated with one side of the water turbine unit, a tail water pipe is communicated with the bottom of the water turbine unit, a drain pipe is communicated with the surface of the tail water pipe, and the upper end of the drain pipe penetrates out of the base; two bases are arranged on the top of the base, two placing platforms which are symmetrically distributed and have a quantity of two are slidably connected between the two bases, a hoisting area is formed between the two placing platforms, an installation frame is fixedly connected to the top of the base, and a control console is arranged on the surface of one of the bases; a hoisting mechanism, the hoisting mechanism is arranged between the two installation frames and is used for hoisting when the water turbine unit is disassembled and maintained, the hoisting mechanism comprises a water storage shell fixedly connected to the inside of the base, the top of the water storage shell is communicated with the water inlet pipe, a first water pump is arranged inside the water storage shell, the liquid outlet end of the first water pump is communicated with a water guide pipe, the upper end of the water guide pipe penetrates out of the base, and a gate is arranged on the surface of the water inlet pipe between the water storage shell and the water turbine unit; an auxiliary mechanism, the auxiliary mechanism is arranged on the surface of the hoisting mechanism and is used for transferring the hoisted components to the surface of the placing platform in cooperation with the hoisting mechanism.

[0013] Based on the above technical features: during use, when the gate is set to be closed, the water inside the water inlet pipe cannot enter the inside of the water turbine unit, so as to facilitate the maintenance and repair of the water turbine unit. Then, by starting the first water pump, the water inside the water inlet pipe can be discharged through the water guide pipe and then diverted through an external connecting pipe.

[0014] As a preferred solution of the auxiliary maintenance platform for hydropower station equipment of the present invention:

[0015] The hoisting mechanism further includes two adjustment boxes fixedly connected to the inner wall of the hoisting area. A connection block is fixedly connected to the top of the adjustment box. A cavity is formed inside the connection block. Connecting pipes are communicated with the opposite sides of the two adjustment boxes respectively. The two connecting pipes are connected to the upper ends of the drain pipe and the water guide pipe through flanges respectively. A communicating pipe is communicated with the top of the adjustment box. The upper end of the communicating pipe is communicated with the cavity. A first solenoid valve is arranged inside the communicating pipe on the side close to the drain pipe. There are two fixed pipes arranged between the two connection blocks. The two ends of the two fixed pipes are communicated with the two cavities respectively.

[0016] Based on the above technical features: The connecting pipes can be quickly connected to the drain pipe and the water guide pipe through flanges, with simple operation. Cooperating with the first water pump, the water inside the water inlet pipe can be injected into the adjustment box through the water guide pipe and the connecting pipe for the power source of the hoisting operation, improving the utilization rate of water resources. Compared with traditional equipment, this method does not require the construction of equipment such as a hydraulic system and a winch, improving the construction efficiency.

[0017] As a preferred solution of the auxiliary maintenance platform for a hydropower station equipment described in the present invention:

[0018] The hoisting mechanism further includes two mounting blocks respectively slidably connected to the opposite sides of the two mounting frames. Two sliders are fixedly connected to the surface of the mounting block and slidably connected to the inner wall of the adjacent mounting frame. Two adjustment pipes are fixedly connected to the inner wall of the mounting frame. An adjustment plate is slidably connected to the inner wall of the adjustment pipe. A top rod is fixedly connected to the top of the adjustment plate. The upper end of the top rod penetrates out of the adjustment pipe and is fixedly connected to the bottom of the adjacent slider.

[0019] Based on the above technical features: By moving the adjustment plate, the top rod can be driven to move synchronously, thereby achieving the effect of adjusting the mounting block.

[0020] As a preferred solution of the auxiliary maintenance platform for a hydropower station equipment described in the present invention:

[0021] A liquid injection cavity is formed between the bottom of the adjustment plate and the inner wall of the adjustment pipe. A liquid injection pipe communicated with the liquid injection cavity is arranged on the surface of the adjustment pipe. The other end of the liquid injection pipe is communicated with the adjacent cavity.

[0022] Based on the above technical features: Water can be injected into the liquid injection cavity through the liquid injection pipe for adjusting the position of the adjustment plate.

[0023] As a preferred solution of the auxiliary maintenance platform for a hydropower station equipment described in the present invention:

[0024] A return pipe is communicated with the upper surface of the adjustment pipe on the side close to the drain pipe. The other end of the return pipe is communicated with the inner cavity of the adjacent adjustment box.

[0025] Based on the above technical features: The return pipe is provided to prevent damage caused by excessive water inside the liquid injection cavity.

[0026] As a preferred solution of an auxiliary maintenance platform for a hydropower station equipment according to the present invention:

[0027] There are two adjusting blocks slidably connected between the two mounting blocks. A connecting rod is fixedly connected between the two adjusting blocks. A sling matching the water turbine unit is arranged at the bottom of the adjusting block.

[0028] Based on the above technical features: The sling is used for hoisting the components of the water turbine unit. Cooperating with the hoisting mechanism can quickly raise the height of the components of the water turbine unit, so as to facilitate the maintenance after disassembly.

[0029] As a preferred solution of an auxiliary maintenance platform for a hydropower station equipment according to the present invention:

[0030] The auxiliary mechanism includes two mounting cylinders fixedly connected to the inner wall of one side of the mounting block and symmetrically distributed. A push rod is slidably connected to the inner wall of the mounting cylinder. One end of the push rod penetrates out of the mounting cylinder and is fixedly connected to the surface of the adjacent adjusting block. A sliding cavity is formed between the end of the push rod far from the adjusting block and the inner wall of the mounting cylinder.

[0031] Based on the above technical features: By moving the push rod, the adjusting block can be driven to move, so as to achieve the effect of moving the hoisted component above the placing table.

[0032] As a preferred solution of an auxiliary maintenance platform for a hydropower station equipment according to the present invention:

[0033] The top of the mounting block on one side where the mounting cylinder is provided is provided with an injection pipe. Both ends of the injection pipe are communicated with the two sliding cavities respectively. The middle of the injection pipe is communicated with a docking pipe. Two second solenoid valves are symmetrically distributed with the docking pipe as the center inside the injection pipe.

[0034] Based on the above technical features: The setting of the second solenoid valve is used to restrict the flow direction of the water in the injection pipe.

[0035] As a preferred solution of an auxiliary maintenance platform for a hydropower station equipment according to the present invention:

[0036] A return liquid pipe is communicated with the surface of the adjusting box close to the drain pipe. The upper end of the return liquid pipe is communicated with an installation pipe. Both ends of the installation pipe are communicated with the two sliding cavities respectively. Two third solenoid valves are symmetrically distributed inside the installation pipe.

[0037] Based on the above technical features: the third solenoid valve is provided to limit the flow direction of water in the installation pipe.

[0038] As a preferred solution of the auxiliary maintenance platform for hydropower station equipment described in the present invention:

[0039] A second water pump is arranged inside the regulating box near one side of the drain pipe, and a liquid outlet end of the second water pump is connected to the other end of the docking pipe.

[0040] Based on the above technical features: the second water pump can use the water stored in the adjustment box to adjust the position of the lifting component, further improving the utilization rate of water resources.

[0041] (III) Beneficial effects

[0042] Compared with the prior art, the present invention provides an auxiliary maintenance platform for hydropower station equipment, which has the following beneficial effects:

[0043] 1. Through the setting of the lifting mechanism, the water stored in the water inlet pipe can be used as a power source for lifting the disassembled parts of the turbine unit. Compared with the traditional lifting equipment, this setting does not need to use power equipment such as winches and hydraulic systems, which reduces the difficulty of construction, effectively improves the construction efficiency, and thus improves the maintenance efficiency. The water stored in the water inlet pipe is used to guide it to act on the adjustment plate and the top rod, which can drive the installation block and the adjustment block to move upward, thereby achieving the effect of rapid lifting. The operation is simple, and the water resources inside the hydropower station are effectively utilized, and the utilization rate of water resources is improved. During the shutdown and maintenance of the turbine unit, the effect of improving the utilization rate of water resources is achieved through this method, which avoids the problem that water resources cannot generate electricity during the shutdown and maintenance of the traditional turbine unit, and the water resource utilization rate is low;

[0044] 2. Through the setting of the auxiliary mechanism, after the lifting is completed, the second water pump, the second solenoid valve and the third solenoid valve can cooperate with each other to achieve the effect of driving the lifting parts to move, move the lifting parts to the top of the placement table, and cooperate with the lifting mechanism to place them on the placement table for the convenience of staff to carry out maintenance. The operation is simple and the utilization rate of water resources is further improved;

[0045] 3. By switching the second solenoid valve and the third solenoid valve, the hoisted components can be placed on the placement tables on both sides in turn, and the next hoisted component can be connected through the sling during the lowering of the previous hoisted component, so as to facilitate rapid hoisting, effectively improve the hoisting efficiency, and then improve the maintenance efficiency, reduce the downtime for maintenance; achieve the purpose of rapid construction, small footprint, and efficient use of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1Schematic diagram of the structure of the auxiliary maintenance platform for the hydropower station equipment of the present invention;

[0047] Figure 2 Schematic diagram of the distribution of the water turbine unit, water inlet pipe, drain pipe and draft tube of the present invention;

[0048] Figure 3 Schematic diagram of the distribution of the water storage shell and the first water pump of the present invention;

[0049] Figure 4 Schematic diagram of the connection of the drain pipe, guide pipe and connecting pipe of the present invention;

[0050] Figure 5 Partial cross-sectional schematic diagram of the hoisting mechanism of the present invention;

[0051] Figure 6 Cross-sectional view of the hoisting mechanism of the present invention;

[0052] Figure 7 Schematic diagram of the structure of the auxiliary mechanism of the present invention;

[0053] Figure 8 is Figure 5 Partial enlarged view of A in

[0054] In the figure: 1. Base; 101. Water turbine unit; 102. Water inlet pipe; 103. Drain pipe; 104. Draft tube; 2. Base; 201. Mounting frame; 202. Placing table; 3. Hoisting mechanism; 4. Auxiliary mechanism; 301. Water storage shell; 302. First water pump; 303. Gate; 304. Guide pipe; 305. Mounting block; 306. Adjusting block; 307. Sling; 308. Connecting block; 309. Connecting pipe; 310. Connecting pipe; 311. Adjusting box; 312. Liquid injection pipe; 313. Adjusting pipe; 314. Adjusting plate; 315. Jacking rod; 316. First solenoid valve; 317. Return pipe; 318. Fixed pipe, 319. Slide block; 401. Installation cylinder; 402. Installation pipe; 403. Injection pipe; 404. Second solenoid valve; 405. Push rod; 406. Second water pump; 407. Return liquid pipe; 408. Docking pipe; 409. Third solenoid valve. Detailed implementation manners

[0055] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0056] Embodiment 1: Please refer to Figures 1-8 , the present invention provides a technical solution:

[0057] An auxiliary maintenance platform for hydropower station equipment, comprising:

[0058] A base 1, inside which a water turbine unit 101 is arranged. One side of the water turbine unit 101 is communicated with a water inlet pipe 102. The bottom of the water turbine unit 101 is communicated with a tail water pipe 104. The surface of the tail water pipe 104 is communicated with a drain pipe 103, and the upper end of the drain pipe 103 penetrates out of the base 1;

[0059] Two bases 2, which are symmetrically arranged on the top of the base 1. Between the two bases 2, two placement platforms 202 which are symmetrically distributed and have a sliding connection are arranged. A hoisting area is formed between the two placement platforms 202. The top of the base 2 is also fixedly connected with a mounting frame 201, and a control console is arranged on the surface of one of the bases 2;

[0060] A hoisting mechanism 3, which is arranged between the two mounting frames 201. The hoisting mechanism 3 is used for hoisting when disassembling and maintaining the water turbine unit 101. The hoisting mechanism 3 includes a water storage shell 301 fixedly connected to the inside of the base 1. The top of the water storage shell 301 is communicated with the water inlet pipe 102. Inside the water storage shell 301, a first water pump 302 is arranged. The liquid outlet end of the first water pump 302 is communicated with a water guide pipe 304. The upper end of the water guide pipe 304 penetrates out of the base 1. A gate 303 is arranged on the surface of the water inlet pipe 102 between the water storage shell 301 and the water turbine unit 101;

[0061] An auxiliary mechanism 4, which is arranged on the surface of the hoisting mechanism 3. The auxiliary mechanism 4 is used to cooperate with the hoisting mechanism 3 to transfer the hoisted components to the surface of the placement platform 202;

[0062] Specifically, when in use, the setting of the gate 303 is such that when the gate 303 is closed, the water inside the water inlet pipe 102 cannot enter the inside of the water turbine unit 101, so as to facilitate the maintenance and repair of the water turbine unit 101. Then, by starting the first water pump 302, the water inside the water inlet pipe 102 can be discharged through the water guide pipe 304 and then diverted through an external connecting pipe.

[0063] Example 2: Refer to Figures 1-8As shown, the hoisting mechanism 3 further includes two adjusting boxes 311 fixedly connected to the inner wall of the hoisting area. The top of the adjusting box 311 is fixedly connected with a connecting block 308. A cavity is formed inside the connecting block 308. The opposite sides of the two adjusting boxes 311 are both communicated with a connecting pipe 309. The two connecting pipes 309 are respectively connected to the upper ends of the drain pipe 103 and the water guide pipe 304 through flanges. And a communicating pipe 310 is communicated with the inner cavity of the adjusting box 311 at the top of the adjusting box 311. The upper end of the communicating pipe 310 is communicated with the inner cavity of the connecting block 308. A first solenoid valve 316 is arranged inside the communicating pipe 310 on the side close to the drain pipe 103. There are two fixing pipes 318 arranged between the two connecting blocks 308. The two ends of the two fixing pipes 318 are respectively communicated with the cavities inside the two connecting blocks 308;

[0064] During use, the two connecting blocks 308 are communicated through the two fixing pipes 318, that is, the two connecting pipes 309 are communicated, so as to drain water during use.

[0065] As Figure 5 , Figure 6 and Figure 7 As shown, the hoisting mechanism 3 further includes two mounting blocks 305 respectively slidably connected to the opposite sides of the two mounting frames 201. The surface of the mounting block 305 is fixedly connected with two sliders 319 slidably connected to the inner wall of the adjacent mounting frame 201. The inner wall of the mounting frame 201 is fixedly connected with two adjusting pipes 313. An adjusting plate 314 is slidably connected to the inner wall of the adjusting pipe 313. The top of the adjusting plate 314 is fixedly connected with a top rod 315. The upper end of the top rod 315 penetrates out of the adjusting pipe 313 and is fixedly connected to the bottom of the adjacent slider 319; A liquid injection cavity is formed between the bottom of the adjusting plate 314 and the inner wall of the adjusting pipe 313. The surface of the adjusting pipe 313 is provided with a liquid injection pipe 312 communicated with the liquid injection cavity. The other end of the liquid injection pipe 312 is communicated with the cavity inside the adjacent connecting block 308; The upper surface of the adjusting pipe 313 on the side close to the drain pipe 103 is communicated with a return pipe 317. The other end of the return pipe 317 is communicated with the inner cavity of the adjacent adjusting box 311; There are two adjusting blocks 306 slidably connected between the two mounting blocks 305. A connecting rod is fixedly connected between the two adjusting blocks 306. And a hoist 307 matching the water turbine unit 101 is arranged at the bottom of the adjusting block 306;

[0066] Specifically, during use, first move the entire device above the water turbine unit 101 through the base 2, and connect the two connecting pipes 309 to the water guide pipe 304 and the drain pipe 103 respectively in a flange connection manner. Then, connect the lifting tool 307 to the disassembled component of the water turbine unit 101 to facilitate subsequent lifting. Start the first water pump 302 to inject the water inside the water storage shell 301 into the inside of the adjustment box 311 connected thereto through the water guide pipe 304, and under the action of the connecting pipe 310, introduce the water into the cavity connected thereto. The water injected into the cavity, under the action of the fixed pipe 318, makes the liquid levels of the water injected into the two cavities equal. After the water in both cavities is filled, inject it into the injection cavity through the injection pipe 312. As the water in the injection cavity is gradually injected, it can push the adjustment plate 314 upward and drive the ejector rod 315 to push the slider connected thereto upward, thereby driving the mounting block 305 to move upward synchronously, and further driving the adjustment block 306 to move upward, so as to lift the disassembled component of the water turbine unit 101 through the lifting tool 307 for easy maintenance;

[0067] After the adjustment plate 314 moves beyond the connection position of the return pipe 317, the subsequent injected water can be injected into the inside of the adjustment box 311 on the side close to the drain pipe 103 through the return pipe 317. By controlling the opening and closing of the first solenoid valve 316, the flow rate inside the water guide pipe 304 provided with the first solenoid valve 316 can be changed. By closing part of the water guide pipe 304 through the first solenoid valve 316, the water injected into the other cavity can be gradually injected into the injection cavity to push the adjustment plate 314. When the first solenoid valve 316 is fully opened, the water injected into the cavity will be discharged into the inside of the adjustment box 311 through the water guide pipe 304 on the side close to the drain pipe 103 and discharged through the connecting pipe 309. At this time, under the gravity of the lifting component, the slider 319, the ejector rod 315, the mounting block 305, and the adjustment block 306, the water inside the injection cavity is guided back into the cavity through the injection pipe 312 and discharged through the water guide pipe 304 and the drain pipe 103, achieving the effect of lowering the lifting component;

[0068] Compared with traditional maintenance platforms, this device occupies less space, is convenient for storage and transportation. At the same time, it uses the water inside the water inlet pipe 102 of the water turbine unit 101 as the power source, reducing the volume, and uses the existing water resources in the hydropower station as the power source, reducing the usage cost. After the device is moved to the position of the water turbine unit 101 that needs to be maintained, only the two connecting pipes 309 need to be connected for use. Compared with traditional equipment, this device has a simple usage method and a low usage cost.

[0069] Example 3: Refer to Figures 1-8, the auxiliary mechanism 4 includes two mounting cylinders 401 fixedly connected to the inner wall of one side mounting block 305 and symmetrically distributed. A push rod 405 is slidably connected to the inner wall of the mounting cylinder 401. One end of the push rod 405 penetrates out of the mounting cylinder 401 and is fixedly connected to the surface of the adjacent adjusting block 306. A sliding cavity is formed between the end of the push rod 405 away from the adjusting block 306 and the inner wall of the mounting cylinder 401. At the top of the mounting block 305 on one side of the mounting cylinder 401, there is an injection pipe 403. The two ends of the injection pipe 403 are respectively communicated with the two sliding cavities, and a docking pipe 408 is communicated in the middle of the injection pipe 403. Inside the injection pipe 403, there are two second solenoid valves 404 symmetrically distributed with the docking pipe 408 as the center. The surface of the adjusting box 311 near the drain pipe 103 is communicated with a liquid return pipe 407. The upper end of the liquid return pipe 407 is communicated with a mounting pipe 402. The two ends of the mounting pipe 402 are respectively communicated with the two sliding cavities. Inside the mounting pipe 402, there are two third solenoid valves 409 symmetrically distributed. Inside the adjusting box 311 near the drain pipe 103, there is a second water pump 406. The liquid outlet end of the second water pump 406 is communicated with the other end of the docking pipe 408. The switching states of the two second solenoid valves 404 are opposite, and the switching states of the two second solenoid valves 404 and the two third solenoid valves 409 are opposite.

[0070] After the hoisting of the disassembled components is completed, by controlling the second water pump 406, the water inside the adjusting box 311 can be injected into the inside of the injection pipe 403 through the docking pipe 408. Since the switching states of the two second solenoid valves 404 are opposite, the injected water can only be injected into the inside of the sliding cavity through the second solenoid valve 404 that is opened on one side. Then, with the increase of water inside the sliding cavity, the push rod 405 is pushed to drive the adjusting block 306 to slide, and under the action of the fixed rod, the two adjusting blocks 306 move synchronously, so as to drive the hoisted component to move above the placing table 202. At this time, by fully opening the first solenoid valve 316, under the action of the hoisting mechanism 3, the hoisted component is placed above the placing table 202 for the staff to repair. At this time, another non-hoisted lifting tool 307 is located in the hoisting area, and the next component can be quickly connected for hoisting. After the hoisting of the next component is completed, by changing the switching states of the two second solenoid valves 404 and the third solenoid valves 409, the two adjusting blocks 306 can be driven to move in the reverse direction by the water injected by the second water pump 406, so as to move the next hoisted component to another placing table 202 for repair, effectively improving the hoisting efficiency, facilitating the repair on the two placing tables 202, improving the repair efficiency, and the placed component can be moved away by moving the placing table 202, facilitating the hoisting of subsequent components, and then multiple components can be repaired simultaneously, effectively improving the repair efficiency.

[0071] Working principle of the auxiliary maintenance platform for hydropower station equipment of the present invention:

[0072] First, during maintenance, the device is moved as a whole above the water turbine unit 101 through the base 2, and the two connecting pipes 309 are respectively connected to the water guide pipe 304 and the drain pipe 103 in a flange connection manner. Then, when the gate 303 is closed, the water inside the water inlet pipe 102 cannot enter the inside of the water turbine unit 101, so as to facilitate the maintenance and repair of the water turbine unit 101. By starting the first water pump 302, the water inside the water inlet pipe 102 can be exported through the water guide pipe 304. The disassembly components of the water turbine unit 101 are connected by the lifting tool 307, which is convenient for subsequent hoisting. By starting the first water pump 302, the water inside the water storage shell 301 is injected into the inside of the adjustment box 311 connected thereto through the water guide pipe 304, and under the action of the connecting pipe 310, the water is introduced into the cavity connected thereto. The water injected into the cavity, under the action of the fixed pipe, makes the liquid levels of the water injected into the two cavities equal. After the two cavities are filled with water, it is injected into the injection cavity through the injection pipe 312. As the water in the injection cavity is gradually injected, it can push the adjustment plate 314 to move upward and drive the ejector rod 315 to push the connected slider to move upward, thereby driving the mounting block 305 to move upward synchronously, and then driving the adjustment block 306 to move upward. Then, the disassembly components of the water turbine unit 101 can be hoisted through the lifting tool 307 for easy maintenance. After the hoisting of the disassembled components is completed, by moving the second water pump 406, the water inside the adjustment box 311 can be injected into the inside of the pipe 403 through the docking pipe 408. Since the switching states of the two second solenoid valves 404 are opposite, the injected water can only be injected into the sliding cavity through the second solenoid valve 404 opened on one side. Then, with the increase of the water in the sliding cavity, it can push the push rod 405 to drive the adjustment block 306 to slide, and under the action of the fixed rod, the two adjustment blocks 306 move synchronously to achieve the effect of driving the hoisted components to move above the placement table 202. At this time, by fully opening the first solenoid valve 316, under the action of the hoisting mechanism 3, the hoisted components are placed above the placement table 202 for easy maintenance by the staff. At this time, another non-hoisted lifting tool 307 is located in the hoisting area, and it can quickly connect to the next component for easy hoisting. After the hoisting of the next component is completed, by changing the switching states of the two second solenoid valves 404 and the third solenoid valve 409, the water injected by the second water pump 406 can drive the two adjustment blocks 306 to move in the opposite direction, achieving the effect of moving the next hoisted component to another placement table 202 for maintenance, effectively improving the hoisting efficiency, facilitating maintenance on the two placement tables 202, improving the maintenance efficiency, and being able to move the placed components away by moving the placement table 202, facilitating the hoisting of subsequent components, and then being able to simultaneously maintain multiple components, effectively improving the maintenance efficiency.

[0073] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0074] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydropower station equipment auxiliary maintenance platform, characterized in that: include: A base (1), wherein a turbine unit (101) is arranged in the base (1), one side of the turbine unit (101) is connected to a water inlet pipe (102), and the bottom of the turbine unit (101) is connected to a tailwater pipe (104), the tailwater pipe (104) is connected to a drainage pipe (103), and the upper end of the drainage pipe (103) passes through the base (1); a base (2) is arranged on the top of the base (1), and symmetrically distributed placement platforms (202) are slidably connected between two of the bases (2), and a hoisting area is formed between the two placement platforms (202), and a mounting frame (201) is arranged on the top of the base (2); The hoisting mechanism (3) comprises a water storage shell (301) arranged in the base (1), the top of the water storage shell (301) being connected to the water inlet pipe (102), a first water pump (302) being arranged in the water storage shell (301), a liquid outlet end of the first water pump (302) being connected to a water guide pipe (304), an upper end of the water guide pipe (304) passing through the base (1), and a gate (303) located between the water storage shell (301) and the water turbine unit (101) being arranged on the surface of the water inlet pipe (102); The auxiliary mechanism (4) is arranged on the surface of the hanging mechanism (3).

2. A hydropower station equipment auxiliary maintenance platform as claimed in claim 1, characterized in that: The hoisting mechanism (3) further comprises two regulating boxes (311) arranged on the inner wall of the hoisting area, a connecting block (308) being arranged on the top of the regulating box (311), a cavity being provided in the connecting block (308), connecting pipes (309) being connected to opposite sides of the two regulating boxes (311), the two connecting pipes (309) being respectively connected to the drainage pipe (103) and the water guide pipe (304) through flanges, a connecting pipe (310) being connected to the top of the regulating box (311), the upper end of the connecting pipe (310) being connected to the cavity in the connecting block (308), a first solenoid valve (316) being arranged inside the connecting pipe (310) close to the drainage pipe (103), a fixing pipe (318) being arranged between the two connecting blocks (308), the two ends of the fixing pipe (318) being respectively connected to the cavities of the two connecting blocks (308).

3. A hydropower station equipment auxiliary maintenance platform as claimed in claim 2, characterized in that: The hoisting mechanism (3) further comprises a mounting block (305) slidably arranged on opposite sides of the two mounting frames (201); a sliding block (319) slidably connected to the inner wall of an adjacent mounting frame (201) is arranged on the surface of the mounting block (305); an adjusting tube (313) is arranged on the inner wall of the mounting frame (201); an adjusting plate (314) is slidably connected inside the adjusting tube (313); a top rod (315) is fixedly connected to the top of the adjusting plate (314); an upper end of the top rod (315) passes through the adjusting tube (313) and is fixedly connected to the bottom of an adjacent sliding block (319).

4. A hydropower station equipment auxiliary maintenance platform as claimed in claim 3, characterized in that: A liquid injection cavity is formed between the bottom of the regulating plate (314) and the inner wall of the regulating tube (313); a liquid injection tube (312) connected to the liquid injection cavity is provided on the surface of the regulating tube (313); the other end of the liquid injection tube (312) is connected to the cavity of the adjacent connecting block (308).

5. A hydropower station equipment auxiliary maintenance platform as claimed in claim 4, characterized in that: The upper surface of the regulating pipe (313) close to the drain pipe (103) is connected to a return pipe (317), and the other end of the return pipe (317) is connected to the inner cavity of the adjacent regulating box (311).

6. A hydropower station equipment auxiliary maintenance platform as claimed in claim 5, characterized in that: Two adjusting blocks (306) are slidably connected between the two mounting blocks (305), a connecting rod is fixedly connected between the two adjusting blocks (306), and a sling (307) matching the turbine unit (101) is arranged at the bottom of the adjusting block (306).

7. A hydropower station equipment auxiliary maintenance platform as claimed in claim 6, characterized in that: The auxiliary mechanism (4) comprises two mounting tubes (401) which are arranged in the mounting block (305) on one side and are symmetrically distributed. A push rod (405) is slidably connected in the mounting tube (401). One end of the push rod (405) passes through the mounting tube (401) and is connected to the adjacent adjustment block (306). A sliding cavity is formed between the end of the push rod (405) away from the adjustment block (306) and the inner wall of the mounting tube (401).

8. A hydropower station equipment auxiliary maintenance platform as claimed in claim 7, characterized in that: An injection pipe (403) is arranged on the top of the installation block (305) on one side of the installation cylinder (401), and the two ends of the injection pipe (403) are respectively connected to the two sliding chambers, and the middle part of the injection pipe (403) is connected to a docking pipe (408), and two second solenoid valves (404) are arranged in the injection pipe (403) and are symmetrically distributed with the docking pipe (408) as the center.

9. A hydropower station equipment auxiliary maintenance platform as claimed in claim 8, characterized in that: The surface of the regulating box (311) close to the drain pipe (103) is connected to a liquid return pipe (407), the upper end of the liquid return pipe (407) is connected to a mounting pipe (402), both ends of the mounting pipe (402) are respectively connected to the two sliding chambers, and a symmetrically distributed third solenoid valve (409) is arranged inside the mounting pipe (402).

10. A hydropower station equipment auxiliary maintenance platform as claimed in claim 9, characterized in that: A second water pump (406) is disposed inside the regulating box (311) on one side close to the drain pipe (103), and a liquid outlet end of the second water pump (406) is connected to the other end of the docking pipe (408).

Images