67 results about "Penstock" patented technology

The present application relates to the technical field of water resources and hydropower. Disclosed is a circumferential stiffener assembling device suitable for unequal-diameter penstocks of a pumped storage power station. The circumferential stiffener assembling device comprises: a traveling mechanism (1) capable of being adapted to end faces of penstocks with different diameters, and a circumferential stiffener assembling hanger (2) fitting with outer surfaces of the penstocks with different diameters, wherein the traveling mechanism (1) extends outwards to provide an expansion connecting base (3) connected to the top of the circumferential stiffener assembling hanger (2). The present application has the abilities of position adjustment and movement, and can realize the assembly of circumferential stiffeners with different diameters and different pitches by means of simple adjustment; the circumferential stiffener assembling device travels in a circumferential direction of the penstocks, thereby realizing the assembly of a ring of circumferential stiffener sections; the present application has the function of automatically aligning the circumferential stiffeners during assembly, thus eliminating the procedures of scribing and alignment; and the present application has the ability of automatic seam compression, and can effectively eliminate gaps between the circumferential stiffeners and the outer diameters of penstock walls.

The invention relates to the technical field of hydropower station pressure steel pipe detection, in particular to a hydropower station steel branch pipe differential graded loading and unloading hydrostatic test method, system and equipment and a storage medium. The hydraulic test process is scientifically divided into a low-pressure stage, a medium-pressure stage and a high-pressure stage, differentiated boosting amplitude and speed control strategies are adopted in the different stages, the technical limitation of a traditional uniform graded boosting method is broken through, and an innovative control mode of low-pressure fast rising and high-pressure slow rising is achieved. The large boosting amplitude and the high boosting speed are adopted in the low-pressure stage, the bearing allowance of the steel branch pipe in the elastic deformation stage is fully utilized, and the test efficiency is remarkably improved; and in the high-pressure stage, the small pressure increasing amplitude and the slow pressure increasing speed are adopted, the sensitive characteristic when the steel is close to the yield strength is effectively adapted, and the local stress concentration and plastic deformation risks are avoided.

The application discloses a hydroelectric station ecological flow discharge system and a discharge method, which are applied to a pressure steel pipe diversion type hydroelectric station. The system comprises a bypass pipe, an inlet end of the bypass pipe is connected with a pressure steel pipe, and the bypass pipe is used for guiding water flow in the pressure steel pipe; a measuring weir, the measuring weir is connected with an outlet end of the bypass pipe, and the measuring weir is used for ecological flow discharge; a monitoring module, the monitoring module is arranged on the measuring weir, and the monitoring module is used for monitoring water level data of the measuring weir; and a control valve, the control valve is arranged on the bypass pipe, and the control valve is used for adjusting water flow flow of the bypass pipe according to an analysis result of the water level data, so as to control flow discharge of the measuring weir. The embodiment of the application can realize ecological flow discharge of the pressure steel pipe diversion type hydroelectric station, and improve stability and ecological benefits of the ecological flow discharge. The application can be widely applied to the technical field of water conservancy and hydropower.

The utility model discloses a prefabricated calandria anti-floating fixing device which comprises two fixing frames, a plurality of metal ribs are arranged between the inner walls of the two fixing frames, two anti-floating plates are arranged on one side of each fixing frame, and supporting ribs are arranged at the bottom ends of the four anti-floating plates. Four supporting ribs are arranged between the two fixing frames, steel balls are arranged at one ends of the four supporting ribs, four wrapping plates are arranged between the inner walls of the two fixing frames, a plurality of side plates are arranged on one sides of the four wrapping plates, and an anti-floating plate, the supporting ribs, the steel balls, the fixing columns and first cast iron pipes are arranged, so that the anti-floating plate and the steel balls are connected through the supporting ribs; the two steel balls are located on the two sides of the fixing frame correspondingly and suitable for the environment where water flow is strong and the environment can be affected by buoyancy, the gravity of the prefabricated calandria body can be enhanced through matched use of the first cast iron pipes and the four steel balls, the prefabricated calandria body can be kept at the preset position, and it is ensured that the prefabricated calandria body cannot float upwards due to external force.

The utility model discloses a transportation adjusting bracket for a pressure steel pipe of a pump station, and relates to the technical field of bracket devices. The device comprises a first base and a second base, the first base and the second base are symmetrically arranged, the first base and the second base are arranged in an I shape, lead screws are rotationally arranged at the two ends of the top of the first base, and the ends, away from the second base, of the two lead screws are jointly sleeved with a first belt. A first motor is fixedly arranged at the position, close to one lead screw, of the first base, and the output end of the first motor is coaxially and fixedly arranged on the lead screws. By arranging the adjustable lead screw and sleeve structure, the problem that the two ends of a long steel pipe are insufficiently supported due to the fact that an existing bracket can only adjust the position of the steel pipe to enable the supporting plate to be centered can be solved according to the actual length of the steel pipe, the adaptability to the steel pipes with different lengths is effectively improved, and the stability of the two ends of the steel pipe in the transportation process is guaranteed; and the toppling risk caused by the unstable two ends of the overlong steel pipe is reduced.

The utility model discloses a fixing device for girth welding of a combined section of a bent pipe of a pressure steel pipe, which comprises a first roller carrier trolley which is fixedly arranged, a second roller carrier trolley is arranged on the parallel opposite side of the first roller carrier trolley, and a trolley track is arranged between the first roller carrier trolley and the second roller carrier trolley. Trolley wheels are arranged on the lower side of the second roller carrier trolley and can roll on the trolley track; rollers are arranged at the two ends of the upper table top of the first roller frame trolley and the two ends of the upper table top of the second roller frame trolley, and thrust wheel sets are arranged on the inner sides of the rollers. The device has the advantages of being simple in structure, convenient to disassemble and stable and reliable in work, meanwhile, the service life of the device is greatly prolonged, and the fault rate and the accident rate are reduced.

The invention relates to the field of water conservancy and hydropower pressure steel pipe manufacturing, mounting and construction, in particular to a pressure steel pipe transportation steering method. Steering transportation of the pressure steel pipes is achieved through the specific pressure steel pipe steering transportation trolley, a lifting point does not need to be arranged at the top of a tunnel for suspended steering, and the construction environment is friendly; by the adoption of the pressure steel pipe steering transportation trolley, the same device can be adopted for in-hole transportation and steering operation before steering and after steering, multiple transportation devices are not needed, the construction procedure and construction cost of an engineering project are optimized, and the safety in the construction process is also improved. In addition, the trolley can be repeatedly used, and is good in economic benefit and good in generalization performance.

The invention discloses an integral structure, a design method and a construction method of a fixed pressure steel pipe. The overall structure comprises the reinforced concrete piles, the peripheral reinforced concrete structure and the pressure steel pipes, sliding of the pressure steel pipes is prevented through shearing resistance of the reinforced concrete piles and friction force between concrete and a foundation face, overturning of the pressure steel pipes is prevented through the combined effect of the piles and rock masses around the piles or a covering layer, and the effect of stabilizing the pressure steel pipes is achieved. Compared with a traditional anchor block which is large in size and complex in formwork erecting, the anchor block is more compact and light in structure, the corresponding formwork engineering amount is small, and the construction difficulty is remarkably reduced. The cast-in-situ bored piles or the rotary digging hole-forming cast-in-situ piles are adopted in a mature construction method, the construction process is standardized, the project quality can be guaranteed, and the construction efficiency can be improved.

The utility model provides a living water supply system for an auxiliary plant of a hydropower station. The living water supply system comprises a pressure steel pipe, a living water supply main pipe, a main pipe valve and instrument group, a coarse filter, a living water supply branch pipe, a small water treatment combined device, a low-water-quality-requirement water sanitary appliance, a high-water-quality-requirement water sanitary appliance and a pressure increasing and reducing unit. Wherein the living water supply branch pipes comprise a first living water supply branch pipe and a second living water supply branch pipe. According to the living water supply system for the auxiliary plant of the hydropower station, the existing water source water pressure resource of the hydropower station can be well utilized, and the living water supply system which is simple, high in flexibility, convenient to operate, maintain and manage, low in investment cost and suitable for the auxiliary plant of the hydropower station can be designed, so that the actual use requirement in engineering is met.

The invention discloses a corrugated expansion joint structure for a pressure steel pipe with a large HD value. Comprising pressure steel pipes located at the front end and the rear end of the corrugated expansion joint structure respectively, an expansion joint front connecting section welded and sealed to the rear portion of the pressure steel pipe at the front end, an expansion joint rear connecting section welded and sealed to the front portion of the pressure steel pipe at the rear end, and an inner flow guide sleeve welded and sealed to the expansion joint front connecting section. The inner flow guide sleeve and the outer flow guide sleeve are in lap joint oppositely, an axial telescopic gap is reserved between the inner flow guide sleeve and the outer flow guide sleeve, and a water stop corrugated pipe is arranged on the outer sides of the inner flow guide sleeve and the outer flow guide sleeve and between the telescopic joint front connecting section and the telescopic joint rear connecting section and used for connecting the inner flow guide sleeve and the outer flow guide sleeve in a sealed mode. The outer side of the water stop corrugated pipe is sleeved with a fence plate assembly capable of stretching and retracting in the axial direction, and the inner side of the water stop corrugated pipe is provided with an outwards-protruding wave reinforcing ring for supporting wave crests of the water stop corrugated pipe. And the use limitation that the thickness of the corrugated pipe plate must be increased along with the increase of the HD value is solved.

This utility model discloses a variable-diameter transport device for pressure steel pipes in water conservancy engineering tunnels, including a frame body and wheels. The frame body includes a roof plate, a floor plate, and multiple side plates surrounding it. At least two parallel, through-type grooves are provided on the surface of the roof plate. Two brackets are slidably mounted on each groove via a displacement adjustment mechanism. The two brackets are symmetrically arranged and move synchronously towards or in opposite directions under the action of the displacement adjustment mechanism. This utility model allows for rapid adjustment of the distance between the two brackets through the displacement adjustment mechanism, enabling it to support pressure steel pipes of various diameters, effectively improving tunnel construction efficiency, reducing construction costs, and ensuring construction quality and safety.

The invention relates to the technical field of spraying equipment, in particular to a water conservancy pressure steel pipe inner wall anti-corrosion spraying device which comprises a steel pipe and further comprises a moving part, a spraying part and a control part. The number of the supporting parts is four, and the four supporting parts are all arranged in the steel pipe; wherein the four supporting parts are arranged in a circumferential array, the sides, away from each other, of the four supporting parts make contact with a steel pipe, the moving part comprises a spraying assembly, and the spraying assembly is arranged in the steel pipe; and the moving assembly is located in the steel pipe. By arranging the moving part, the problems that in the using process of existing steel pipe inner wall anti-corrosion spraying equipment, a spray head is inconvenient to drive to move in a steel pipe, the spraying distance is reduced, the working efficiency of the equipment is greatly limited, the construction progress is slow, the equipment needs to be frequently disassembled and assembled for anti-corrosion treatment of a long-distance steel pipe, and the construction cost is low are solved. And the labor cost and the time cost are increased.

The application discloses a kind of jet water guide pipe and flush toilet, the jet water guide pipe has water inlet end and water outlet end, the jet water guide pipe has helical flow guide surface, a generatrix makes helical motion from the water inlet end to the water outlet end around a vertical axis and forms the helical flow guide surface, water flow enters from the water inlet end and flows to the water outlet end along the helical flow guide surface under the action of its own gravity.The jet water guide pipe of the application makes water flow helical motion in the jet water guide pipe, thereby generating rotational inertia and impact force, which on the one hand increases the water outlet speed of water flow and increases the energy of water flow;On the other hand, it can ensure that water flow flows along the tangential direction of helical flow guide surface, reduces pipe resistance, and avoids water flow colliding with other parts in the jet water guide pipe to generate noise, while being beneficial to forming concentrated rotating water flow.

The present application relates to pipeline installation construction technical field, specifically to a kind of slope section pressure steel pipe installation method, including S1, traction equipment erection, traction equipment includes the deflection pulley being arranged in slope top and the winch being arranged in slope bottom;S2, pipe trench excavation;S3, track laying;S4, pipe section transport installation;S5, pier construction;S6, earthwork backfilling;S7, detection test.The present application is a kind of slope section pressure steel pipe installation method, by setting winch in slope bottom, deflection pulley is set in slope top, pipe section can be transported from slope bottom to slope top, the problem that the pipe section cannot be transported on the top of slope in prior art can be overcome;By using the butt joint installation of pipe section from top to bottom, cooperate pier to fix pipe section, the installation problem of the pipe section of slope section pressure steel pipe in prior art, which cannot be transported on the top of slope, can be overcome;By pipe trench alignment adjustment, adjust the size of corner at variable slope, so that pipe section can smoothly pass through variable slope position, avoid position interference.

1. The name of the design product: pressure steel pipe tile. 2. The use of the design product: used for laying high-pressure gas storage steel lining or water conservancy and hydropower pressure steel pipe structure. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: design 1 perspective view 1. 5. Design 1 is designated as the basic design.

The application discloses a kind of for pressure steel pipe monitoring device, belong to pressure steel pipe monitoring technical field.It include: ball valve body both sides are connected with connecting box by connecting assembly, the connecting box is connected with pipeline by connecting assembly away from the one end of ball valve body, the inner wall of the pipeline is equipped with moving ring, movement mechanism is equipped between the moving ring and the inner wall of pipeline to drive moving ring move between pipeline, connecting box and ball valve body;Monitoring mechanism is equipped in moving ring for monitoring the deformation generated by the inner wall of pipeline;External detection mechanism is equipped on the outer wall of pipeline, for monitoring the stress deformation of the outer wall of pipeline;The sealing monitoring mechanism is detachably equipped on the pipeline, for monitoring the sealing of connecting assembly;Connecting box is equipped with take-up mechanism, one end of cable is wound on take-up mechanism, the other end is connected to moving ring, to provide power supply for internal monitoring mechanism and provide pulling recovery force;The application can realize monitoring to the inside of pressure pipeline and ball valve.

The invention discloses a lamellar-tear-resistant, low-hardness and high-toughness steel plate for a quenched and tempered pressure vessel and a production method of the steel plate. The steel plate comprises the following chemical components: C, Si, Mn, Cu, Ni, Mo, Nb, V, Ti, P, S, N, O, As, Ca and the balance of Fe and impurities. The production method comprises a strict smelting process, a rolling process and a heat treatment process, through component design and production process design, the thickness of the prepared finished steel plate is 36-60 mm, the yield strength is larger than or equal to 510 MPa, the tensile strength is 610-730 MPa, the ductility is larger than or equal to 18.0%, the-50 DEG C low-temperature impact KV2 at the 1 / 4 and 1 / 2 plate thickness position is larger than or equal to 160 J, the lamellar tearing resistance in the thickness direction is larger than or equal to 50%, the Vickers hardness HV10 of the surface of the steel plate is smaller than or equal to 220, and the steel plate is suitable for being used for manufacturing the steel plate. And the NDT drop hammer detection temperature is less than or equal to-50 DEG C. The steel has good lamellar tearing resistance, processability and toughness, can be used for manufacturing large spherical tanks and hydropower station pressure steel pipes, can be produced on a large scale, and has a wide market prospect.

The invention discloses an unpowered emergency drainage system for a high-water-head hydropower station, belongs to the technical field of drainage systems, and aims to solve the problem that accumulated water in a water collecting well cannot be timely and effectively emptied when the hydropower station encounters a power failure accident of the whole plant. The unpowered emergency drainage system comprises a pressure steel pipe, a control part is arranged at one end of the pressure steel pipe, and a first pipeline is fixedly mounted at one end of the control part; a fixing frame is fixedly mounted at one end of the first pipeline, a suction shell is fixedly mounted at one end of the fixing frame, a spray pipe is slidably connected into the first pipeline, one end of the spray pipe is slidably connected with the suction shell, a sealing seat is fixedly mounted on the surface of the spray pipe, and a baffle is slidably connected to one side of the sealing seat. Compared with a traditional drainage pump system depending on electric power, the drainage pump system can continuously pump accumulated water of the water collecting well under the extreme power-off working condition, the accumulated water is prevented from flowing back to a plant due to drainage interruption, and the safety of power generation equipment and an electrical system is protected.

1. The name of the design product: hole pressure steel pipe. 2. The use of the design product: for hole high pressure gas storage steel lining or water conservancy and hydropower pressure steel pipe structure. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: design 1 perspective view 1. 5. Design 1 is designated as the basic design.

The invention belongs to the technical field of hydropower station pressure steel pipe installation, and particularly discloses a pressure steel pipe fixing device and a fixing method.The pressure steel pipe fixing device comprises a locking fixing buttress, a locking fixing hinge, a locking movable hinge and a limiting unit; the locking fixed hinge and the locking fixed buttress are both pre-buried in concrete, and the locking movable hinge is rotationally connected with the locking fixed hinge; the locking fixed buttress is used for limiting downstream rotation of the locking movable hinge; the limiting unit is used for limiting the upstream rotation angle of the locking movable hinge, and when the locking movable hinge rotates to a preset angle, the limiting unit can abut against the locking movable hinge; the locking movable hinge is provided with two working faces, when the pressure steel pipe is located at the locking position, the locking fixing buttress abuts against one working face of the locking movable hinge, and the stiffening ring of the pressure steel pipe abuts against the other working face of the locking movable hinge. The pressure steel pipe can be temporarily fixed in the installation process, and construction safety is ensured.

The high-grade steel comprises the following chemical components in percentage by weight: 0.039 to 0.059 percent of C, 1.20 to 1.60 percent of Mn, less than or equal to 0.15 percent of Si, less than or equal to 0.015 percent of P, less than or equal to 0.003 percent of S, 0.040 to 0.060 percent of Nb, 0.030 to 0.060 percent of V, 0.010 to 0.020 percent of Ti, 0.001 to 0.003 percent of B, 0.010 to 0.060 percent of Alt, 1.20 to 2.00 percent of Ni, 0.30 to 0.60 percent of Cr, 0.40 to 0.70 percent of Mo, less than or equal to 0.55 percent of Ceq, less than or equal to 0.22 percent of Pcm and the balance of Fe and impurities. The ultra-low carbon C is smaller than 0.06%, the ultra-low welding crack sensitivity coefficient Pcm is smaller than or equal to 0.22%, Nb + V + Ti microalloying and Ni + Cr + Mo alloying design are adopted, Ti + B elements are adopted for improving the hardenability of the steel plate, the technologies of rolling under large pressure, low-temperature controlled rolling, ultra-fast cooling of the rolled steel plate and the like are adopted in the controlled rolling and controlled cooling process, and the properties that the yield strength is larger than or equal to 890 MPa, the tensile strength is 950-1100 MPa, and the transverse low-temperature impact energy of the steel plate at the temperature of 60 DEG C below zero is larger than or equal to 150 J are achieved.

The application discloses a pressure steel pipe state diagnosis method and system based on microwave vibration measurement, and the method comprises the following steps: emitting a linear frequency modulation continuous wave signal to a pressure steel pipe surface measuring point and receiving a return wave, obtaining a vibration displacement time sequence signal through orthogonal down-conversion and digital solution; after standardization, multi-dimensional candidate feature parameters are extracted from time domain, frequency domain and time-frequency domain; a key feature parameter set is obtained through an aggregated analytic hierarchy process and a redundancy elimination strategy; the key feature parameter set is mapped to a state level according to a preset correlation mapping rule, and is used for early warning, scheduling and maintenance. The system comprises a vibration displacement signal acquisition module, a key feature parameter extraction module and a stability state evaluation module. The application realizes non-contact high-precision vibration displacement measurement, is stable and reliable under different working conditions, has strong physical interpretability of diagnosis results, can early identify progressive deterioration signs, and improves state judgment accuracy.

The application provides a long-pressure penstock emptying system without a gate valve at the end of the penstock and a working method thereof, which comprises a water inlet, a long-pressure penstock, a pressure pipeline and a plant in sequence, a pressure regulating chamber is arranged at the joint of the long-pressure penstock and the pressure pipeline, a construction adit is arranged at the end of the long-pressure penstock, the construction adit is arranged on the upstream side of the pressure regulating chamber, a maintenance gate is arranged at the end of the long-pressure penstock close to the construction adit, a water collecting pit is arranged at the bottom of the long-pressure penstock close to the construction adit, a drain pipe is communicated with the bottom of the water collecting pit, one end of the drain pipe is connected to the outside through the construction adit, a working valve is arranged at the water outlet end of the drain pipe, the water collecting pit is arranged to actively collect seepage water, the construction adit is used as a seepage water leading channel of the long-pressure penstock, and the seepage water in the long-pressure penstock can be effectively drained; the temporary water blocking sandbags can be quickly arranged and removed, and the seepage water can be effectively prevented from flowing into the pressure pipeline downstream.

A hydropower plant with offshore water supply includes at least one water intake structure, underground penstock, turbine, and tailrace. The water intake structure has a base built on a continental shelf of a water body and a water intake at an elevation above the base. The penstock has an inlet connected to the base and an outlet. The turbine is mounted on a turbine machine floor in an underground turbine room at an elevation lower than the base. The turbine has an inlet port connected to the penstock outlet and an outlet port connected to the tailrace. The inlet receives fluid from the water intake; the inlet port receives fluid from the outlet of the penstock; and the tailrace receives fluid from the inlet port and conveys the fluid to the water body.

The application relates to a multi-tile pressure steel pipe roundness adjusting system and an adjusting method. The multi-tile pressure steel pipe roundness adjusting system comprises a base, a power unit, a rotating unit, a pushing assembly and a distance measuring assembly. In the process of adjusting the roundness of the multi-tile pressure steel pipe, the distance measuring assembly always measures the measuring distance between itself and the outer wall of the pressure steel pipe. When the measuring distance is found to be different from the second distance, the pushing assembly drives the corresponding tile to move, so that the measuring distance corresponding to each tile is equal to the second distance. The roundness adjusting process is completed, the adjacent tiles are welded, a complete pressure steel pipe is formed, the roundness adjusting efficiency is improved, the accuracy is ensured, and the data in the process of adjusting the measuring distance corresponding to each pushing assembly to be equal to the second distance can be recorded according to the data corresponding to the distance measuring assembly and the pushing assembly, so that data recording and tracing are realized, and digital quality control is met.

The invention provides a hydraulic model test platform and test method for partial fracture of a pressure steel pipe. The test platform comprises a test simulation module, a test measurement module and a test data acquisition and processing module, the test simulation module comprises a plant typical building model, a pressure steel pipe, a pressure steel pipe anchor block, a U-shaped groove, a jacking device, a mounting bottom plate, a drainage channel and a forebay water tank; the test measurement module comprises a plurality of cameras, a plurality of ultrasonic displacement sensors and a high-precision instantaneous pressure sensor; the test data acquisition and processing module comprises a signal transmission system, a signal collection system and a work station. According to the invention, the position relation between the pressure steel pipe and important facilities of a factory building can be accurately and flexibly expressed by using the jacking device and a modular assembly mode, so that the accuracy of a subsequent hydraulic test is guaranteed; the test method stipulates a series of processes, and can systematically and completely guide the local fracture hydraulic model test of the pressure steel pipe of the hydropower station.

A hydroelectric generating plant is disclosed, in which water recycles in the hydroelectric generation process. A high-mass, large diameter hydro rotor for hydroelectric power generation is disclosed. A large diameter circular horizontal water flow, the desired water flow regime, is created to float and rotate the high-mass hydro rotor, which is coupled to a turbine shaft. Extremely high torque and angular momentum is provided for conversion into extremely high energy output. The desired water flow regime can be augmented with different configurations of penstocks, intake channels, and discharge channels.

The utility model relates to the related technical field of steel pipe coating repairing equipment, and discloses hydropower station pressure steel pipe anti-corrosion coating rapid repairing equipment which comprises a base, pressure steel pipe main supporting rollers are linearly fixed to the rear portion of the top of the base, and connecting shafts are installed between the pressure steel pipe main supporting rollers. A first motor is arranged on the right wall of the pressure steel pipe main supporting roller on the right side, the output end of the first motor is connected with a roller body of the pressure steel pipe main supporting roller, a sliding groove is formed in the position, located in front of the pressure steel pipe main supporting roller, in the base, a threaded rod is rotationally installed in the sliding groove, and a sliding block is inserted into the sliding groove. And the sliding blocks are in threaded connection with the threaded rods, and pressure steel pipe auxiliary supporting rollers are fixed to the tops of the sliding blocks, so that a pressure steel pipe anti-corrosion coating can be better and rapidly repaired, manpower is saved, the working efficiency is improved, and the pressure steel pipe anti-corrosion repairing device is suitable for being used for pressure steel pipes of various diameters.

The application relates to a water diversion tunnel repairing device and a repairing method, which comprises a repairing device body and an external control assembly, the external control assembly controls the repairing device body, the repairing device body comprises an inspection assembly, an isolation assembly, a repairing assembly, a moving assembly and a power supply assembly, the inspection assembly, the isolation assembly and the repairing assembly are arranged in the moving assembly and are fixedly connected with the moving assembly, the moving assembly drives the inspection assembly, the repairing assembly, the isolation assembly and the power supply assembly to move along the length direction of the water diversion tunnel; the inspection assembly is used for inspecting the wall condition of the water diversion tunnel; the power supply assembly provides power supply for the inspection assembly, the isolation assembly, the repairing assembly and the moving assembly to operate the repairing device body; the repairing assembly penetrates through the isolation assembly, the isolation assembly performs water-free isolation on the water diversion tunnel, and the repairing assembly is convenient for repairing the damaged part of the wall; the device can automatically inspect and repair in the water diversion tunnel, and the operation risk of the repairing personnel is reduced; the repairing method is simple, convenient and easy to operate.