CN114737538B - A high safety factor maintenance platform for hydropower station generator sets - Google Patents

A high safety factor maintenance platform for hydropower station generator sets

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Publication number
CN114737538B
CN114737538B CN202210298024.4A CN202210298024A CN114737538B CN 114737538 B CN114737538 B CN 114737538B CN 202210298024 A CN202210298024 A CN 202210298024A CN 114737538 B CN114737538 B CN 114737538B
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CN
China
Prior art keywords
platform
support
safety
hydropower station
maintenance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202210298024.4A
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Chinese (zh)
Other versions
CN114737538A (en
Inventor
李远飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yichang Yuanke Automation Co ltd
Original Assignee
Yichang Yuanke Automation Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to CN202210298024.4A priority Critical patent/CN114737538B/en
Publication of CN114737538A publication Critical patent/CN114737538A/en
Application granted granted Critical
Publication of CN114737538B publication Critical patent/CN114737538B/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/18—Scaffolds primarily resting on the ground adjustable in height
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/001—Safety or protective measures against falling down relating to scaffoldings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G2005/008—Hoisting devices specially adapted as part of a scaffold system
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Turbines (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

The invention provides a high-safety-coefficient maintenance platform for a hydropower station generator set, which comprises a lower platform, a support and an upper platform, wherein the lower platform, the support and the upper platform are sequentially arranged from bottom to top, a hollow channel is arranged in the support, a car which moves up and down along the support is arranged in the channel, a movable moving platform is arranged outside the support in a surrounding manner, the moving platform is fixedly connected with the car and moves up and down along the support, one side of the support is provided with a vertical opening, and one side of the car corresponding to the opening is communicated with the surface of the moving platform. The invention has three loading platforms, thereby providing a large-area stable aerial platform, and can cover all the vertical directions of the internal space of the generator set, so that workers can stand on three different platforms to perform various works such as installation, disassembly, maintenance and the like, the invention has higher construction stability and safety coefficient, can bear large-scale working equipment, and is beneficial to high-efficiency maintenance.

Description

High-safety-coefficient overhauling platform for hydropower station generator set
Technical Field
The invention relates to the technical field of hydropower station maintenance equipment, in particular to a high-safety-factor maintenance platform for a hydropower station generator set.
Background
The power system is an indispensable power energy for life and production of people in the modern society, and hydroelectric generation is a precursor of the power industry. Hydroelectric power generation is an important component in power engineering in China, rivers and lakes in China are widely distributed, the drop is huge, and abundant resource advantages are reserved. Because hydroelectric power generation has the characteristics of cleanness, high efficiency and stable and sufficient energy supply, the hydroelectric engineering is paid more attention to more and more people.
The hydropower station consists of a hydraulic system, a mechanical system, an electric energy generating device and the like, is a hydraulic junction project for converting water energy into electric energy, and the sustainability of electric energy production requires the water energy of the hydropower station to be utilized uninterruptedly. The hydraulic resource distribution in time and space is adjusted and changed artificially by building a hydropower station reservoir system, so that sustainable utilization of the hydraulic resource is realized. In order to effectively convert water energy in a reservoir into electric energy, a hydropower station needs to be realized by a hydro-electromechanical system, and the system mainly comprises a pressure water diversion pipe, a water turbine, a generator, a draft tube and the like.
The hydraulic turbine is a key device of the hydroelectric generating set, and is used for converting the kinetic energy of water flow into rotation of the hydraulic turbine, so that the hydraulic turbine drives the generator to rotate. When the water turbine fails and needs maintenance or normal maintenance is performed, the water turbine needs to be lifted, and then the water turbine body and a channel on which the water turbine body is installed are manually overhauled. Because the water turbine is arranged in the vertical space, the lower part is the water outlet, and the standing position is lacking. The traditional maintenance process is to set up the scaffold at the edge, and then maintenance personnel work through the scaffold. However, the scaffold is not supported at the bottom and is fixed only through the side surfaces, so that the scaffold is complex to build, the safety coefficient is low, and large-scale working equipment is difficult to mount. There is therefore a need for a better service device.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides a high-safety-coefficient overhauling platform for a hydropower station generator set, which solves the problem that a water turbine is difficult to maintain in the prior art.
According to the embodiment of the invention, the high-safety-coefficient maintenance platform for the hydropower station generator set comprises a lower platform, a support and an upper platform which are sequentially arranged from bottom to top, wherein a hollow channel is arranged in the support, a lift car which moves up and down along the support is arranged in the channel, a movable moving platform is arranged outside the support in a surrounding mode, the moving platform is fixedly connected with the lift car and moves up and down along the support, one side of the support is provided with a vertical opening, the length of the opening is matched with the height of the support, and one side of the lift car corresponding to the opening is communicated with the surface of the moving platform.
The invention has the technical principle that the invention comprises three loading platforms, wherein the upper platform is fixedly connected with a seat ring flange surface of a generator set so as to repair the inside of a seat ring, the lower platform is fixedly connected with a tail pipe cone pipe section of the generator set so as to meet the installation, dismantling and repair work of a rotating wheel chamber, and a moving platform and a lift car are supported by a support so that a worker can freely move in the vertical direction to construct various other devices installed on the vertical surface, and the observation difficulty of construction conditions can be reduced.
Further, the outer edge of the bottom surface of the upper platform is provided with an annular track, a lifting appliance is arranged on the annular track, and a movable plate capable of being opened and closed is arranged at the position, corresponding to the annular track, of the surface of the upper platform.
Further, the lower platform comprises a bottom plate, a panel and a supporting frame arranged between the bottom plate and the panel, wherein the supporting frame is of a steel structure which is arranged in a staggered mode.
Further, the support is a regular polygon frame structure, and the support comprises a plurality of support columns arranged along the end points of the regular polygon.
Further, the top of the support is provided with a power platform, the power platform is provided with a motor, the motor is connected with a spool in a driving mode, and the spool is connected with the moving platform through a traction rope.
Furthermore, the movable platform is of an annular plate-shaped structure, the inner side of the movable platform clings to the side face of the support, and the projection of the movable platform on the horizontal plane does not exceed the range of the upper platform and the lower platform.
Further, the mobile platform comprises a radial support and a plurality of layers of annular base plates paved on the support, and the annular base plates are of detachable structures.
Furthermore, the inner edge of the mobile platform is also provided with a locking device, the locking device comprises a clamping head and a controller, the clamping head is of an L-shaped structure, one end of the locking device is rotatably mounted on the mobile platform, the other end of the locking device faces the support to be rotatably arranged, the controller controls the rotation and stopping of the clamping head, the side face of the support is also provided with a baffle plate corresponding to the clamping head, the baffle plate is horizontally arranged, and the baffle plates are sequentially distributed at equal intervals along the vertical direction.
Further, the end of the traction rope is provided with a lifting hook, a connecting hole is formed in the position, corresponding to the lifting hook, of the upper surface of the inner side of the mobile platform, and the lifting hook is detachably connected with the connecting hole.
Further, a safety ladder is arranged on one side face of the support, and the safety ladder is connected to the power platform from the lower platform.
Compared with the prior art, the invention has the following beneficial effects:
1. The invention has three loading platforms, thereby providing a large-area stable aerial platform, and can cover all the vertical directions of the internal space of the generator set, so that workers can stand on three different platforms to perform various works such as installation, disassembly, maintenance and the like, the invention has higher construction stability and safety coefficient, can bear large-scale working equipment, and is beneficial to high-efficiency maintenance;
2. According to the invention, the movable platform can move up and down along the support, so that the height can be adjusted at any time according to the requirement, and each position of the side surface of the installation space of the whole water turbine can be covered, thereby achieving more convenient maintenance work;
3. The invention is also provided with the lift car positioned in the bracket, wherein the lift car moves along with the movable platform, when the height of the movable platform needs to be adjusted, workers enter the lift car, and after the movable platform is stabilized after the adjustment is finished, the workers leave the lift car, so that the lift car is safer, and the danger that the workers fall in high altitude due to shaking of the movable platform can be avoided;
4. according to the invention, the locking device and the baffle are respectively arranged between the mobile platform and the bracket, and the mobile platform can be fixed relative to the bracket when not required to move through the cooperation of the clamping head and the baffle, so that the stability and the safety coefficient of the mobile platform are enhanced;
5. The bottom of the upper platform is also provided with the annular track and the lifting appliance arranged on the annular track, and equipment or raw materials can be transported downwards from the top through the lifting appliance, so that a convenient logistics channel is provided for workers on the moving platform or the lower platform.
Drawings
Fig. 1 is an overall schematic diagram of an embodiment of the present invention.
Fig. 2 is a schematic view of a portion of the structure of the embodiment of the present invention excluding the upper platform.
Fig. 3 is a schematic side view of an embodiment of the present invention.
Fig. 4 is an enlarged schematic view of the portion a in fig. 1.
Fig. 5 is an enlarged schematic view of a portion B in fig. 2.
In the figure, 1, an upper platform, 2, a lower platform, 3, a movable platform, 4, a bracket, 5, a lift car, 6, a power platform, 7, a locking device, 11, a movable plate, 12, an annular track, 21, a bottom plate, 22, a panel, 23, a supporting frame, 31, an inner annular pad, 32, an outer annular pad, a connecting hole, 41, a safety ladder, 42, a baffle, 51, a cabin door, 61, a motor, 62, a traction rope, 63, a lifting hook, 71, a clamping head, 72 and a controller.
Detailed Description
The technical scheme of the invention is further described below with reference to the accompanying drawings and examples.
As shown in fig. 1, the embodiment of the invention provides a high-safety-coefficient maintenance platform for a hydropower station generator set, which comprises a lower platform 2, a bracket 4 and an upper platform 1 which are sequentially arranged from bottom to top. The upper platform 1 is fixedly connected with a seat ring flange surface of the generator set so as to repair the interior of the seat ring, the lower platform 2 is fixedly connected with a tail pipe cone pipe section of the generator set so as to meet the requirements of installation, dismantling and repair work of a runner chamber, and the movable platform 3 and the lift car 5 are supported by the support 4 so that workers can freely move in the vertical direction.
In this embodiment, an annular rail 12 is disposed on the outer edge of the bottom surface of the upper platform 1, a hanger (not shown) is mounted on the annular rail 12, and a movable plate 11 capable of being opened and closed is disposed on the surface of the upper platform 1 corresponding to the annular rail 12. When the upper platform 1 is used for carrying out material transportation, the movable plate 11 is opened to operate the lifting appliance. In this embodiment, the load of the endless track 12 is not less than 6T, and four electric hoists with a load of 1.5T or more are installed as spreaders, so as to perform transportation work of equipment, materials and wastes.
As shown in fig. 2, the lower platform 2 includes a bottom plate 21, a panel 22, and a supporting frame 23 disposed between the bottom plate 21 and the panel 22, wherein the supporting frame 23 is a steel structure disposed in a staggered manner, and the three components are simultaneously a chassis structure with high strength and bearing capacity and lower dead weight. The supporting frame 23 comprises a plurality of main steel materials which are perpendicular to each other and a plurality of reinforcing structures which are arranged in a staggered manner, so that the combination between the bottom plate 21 and the panel 22 is more stable and compact, and the problems of fracture and bending are not easy to occur. In this embodiment, the lower platform 2 meets the total mass requirements of not less than 30 constructors, portable working devices, materials and demolishments.
In this embodiment, as shown in fig. 3, the support 4 is a regular polygon frame structure, and the support 4 includes a plurality of support columns disposed along the end points of the regular polygon. Preferably, in this embodiment, the support 4 has a square frame structure, and includes four support columns respectively disposed at the ends of the square. Reinforcing ribs are arranged between the adjacent support columns so as to form a frame with multipoint connection, and the overall structural strength is improved.
The inside hollow passageway that is equipped with of support 4, the inside car 5 that reciprocates along support 4 that is equipped with of passageway, the outside movable platform 3 that is provided with around being provided with of support 4, movable platform 3 and car 5 fixed connection and simultaneously reciprocate along support 4, support 4 one side is equipped with vertical opening, and the height of support 4 is cooperated to open-ended length, car 5 correspond the one side and the movable platform 3 surface intercommunication that the opening was located. In this embodiment, preferably, the side of the car 5 corresponding to the opening is further provided with an openable door 51, so as to prevent the inner carrier from accidentally sliding out of the car 5, thereby further improving the safety factor. When it should be noted that, in this embodiment, the moving platform 3 is in an annular plate structure, the inner side of the moving platform 3 is tightly attached to the side surface of the support 4, and the projection of the moving platform 3 on the horizontal plane does not exceed the ranges of the upper platform 1 and the lower platform 2.
In the invention, the mobile platform 3 comprises a radial bracket 4 and a plurality of layers of annular base plates paved on the bracket 4, wherein the annular base plates are of detachable structures. The present embodiment includes a two-layer structure including an inner annular pad 31 and an outer annular pad 32, wherein the outer annular pad 32 is a detachable structure, and the total area of the annular pad can be reduced after detachment, so that the mobile platform 3 can be constructed by some protruding parts. In this embodiment, preferably, the bearing of the inner annular pad 31 is not less than 7T, and the bearing of the inner annular pad 31 is not less than 3T, so that it meets the total mass requirements of at least 20 workers and corresponding equipment.
When the moving platform 3 is fixed at a certain height, a worker enters the car 5 and moves to the same height along with the car, then the cabin door 51 is opened to enter the surface of the moving platform 3, and then the worker can start working, when the height of the moving platform 3 needs to be adjusted, the worker firstly enters the car 5, closes the cabin door 51, moves the moving platform 3 and the car 5 up and down, and can transfer from the car 5 to the moving platform 3 after being fixed again. Therefore, when the mobile platform 3 moves, the surface is free of staff, the dangerous situation of high-altitude falling is not easy to occur, meanwhile, the staff does not leave the equipment completely, and the mobile platform 3 can be quickly transferred to the surface to continue working after being fixed, so that the high efficiency is achieved.
In the invention, the moving platform 3 and the car 5 are integrated, the car 5 is positioned in the bracket 4, the moving platform 3 is positioned outside the bracket 4, and the moving platform 3 or the car 5 can be moved simultaneously only by independently driving the moving platform 3 or the car 5. The car 5 and the moving platform 3 may be connected by a fixed structure such as a steel frame, and the side surface of the bracket 4 corresponding to the connection surface is not provided with a reinforcing rib, so that the movement of the car 5 and the moving platform 3 is prevented from being hindered. The staff is located in the car 5 and does not need to additionally drive the car 5 to move, and the staff can directly follow the moving platform 3 to move to the required height.
In a further aspect of the present invention, as shown in fig. 5, the top of the bracket 4 is provided with the power platform 6, and because the bracket 4 in this embodiment is a square frame, the power platform 6 is respectively provided with the motors 61 at four corners of the bracket 4, the motors 61 drive and connect the bobbins, and the bobbins are connected with the moving platform 3 through the traction ropes 62. When the motor 61 works, the movable platform 3 is pulled up by winding the traction rope 62 on the spool, and when the motor 61 rotates reversely to unwind the spool, the movable platform 3 descends by itself under the action of gravity. Because the moving platform 3 and the car 5 are of an integrated structure, the motor 61 drives the moving platform 3 to move, so that the car 5 is also driven to move. Furthermore, the end of the traction rope 62 is provided with a hanging hook 63, the position of the upper surface of the inner side of the mobile platform 3 corresponding to the hanging hook 63 is provided with a connecting hole 33, and the hanging hook 63 is detachably connected with the connecting hole 33. This allows the hook 63 to be detached from the connection hole 33, facilitating maintenance of the motor 61, the spool or the moving platform 3, respectively.
Preferably, one of the sides of the support 4 is provided with a safety ladder 41, said safety ladder 41 being connected from the lower platform 2 to the power platform 6. This allows the user to directly access the power platform 6 to perform installation and maintenance on the motor 61 or the spool.
As shown in fig. 4, since the moving platform 3 and the car 5 are suspended on the frame 4 by the traction ropes 62, there may be a certain shake. Therefore, in this embodiment, the inner edge of the moving platform 3 is further provided with a locking device 7, the locking device 7 includes a chuck 71 and a controller 72, the chuck 71 is in an L-shaped structure, one end of the chuck is rotatably mounted on the moving platform 3, the other end of the chuck is rotatably disposed towards the support 4, and the controller 72 controls rotation and stopping of the chuck 71, and in this embodiment, the driving motor 61 is used as the controller 72. The side of the bracket 4 is also provided with a baffle plate 42 corresponding to the clamping head 71, the baffle plate 42 is horizontally arranged, and the baffle plates 42 are sequentially distributed at equal intervals along the vertical direction. In this embodiment, the controller 72 is an electrically controlled telescopic rod, one end of the telescopic rod is fixed on the moving platform 3, the other end of the telescopic rod is connected with the clamping head 71, when the telescopic rod stretches, the clamping head 71 is pushed to rotate towards one side of the support 4 and finally clamped above the baffle 42, and thus the clamping head 71 and the baffle 42 are fixed on the moving platform 3 and the support 4, and the stability of the moving platform 3 is improved. When the mobile platform 3 needs to be moved, the telescopic rod is controlled to be contracted, and the clamping head 71 is driven to rotate away from the bracket 4.
It should be noted that, in this embodiment, all the load bearing structures use 6 times of safety factor.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.

Claims (8)

1. The high-safety-coefficient maintenance platform for the hydropower station generator set is characterized by comprising a lower platform, a support and an upper platform which are sequentially arranged from bottom to top, wherein a hollow channel is arranged in the support, a lift car which moves up and down along the support is arranged in the channel, a movable moving platform is arranged outside the support in a surrounding manner, the moving platform is fixedly connected with the lift car and moves up and down along the support, one side of the support is provided with a vertical opening, the length of the opening is matched with the height of the support, and one side of the lift car corresponding to the opening is communicated with the surface of the moving platform;
the inner edge of the mobile platform is also provided with a locking device, the locking device comprises a clamping head and a controller, the clamping head is of an L-shaped structure, one end of the clamping head is rotatably arranged on the mobile platform, the other end of the clamping head is rotatably arranged towards the bracket, and the controller controls the rotation and the stop of the clamping head;
The top of the bracket is provided with a power platform, the power platform is provided with a motor, the motor is connected with a spool in a driving manner, and the spool is connected with the moving platform through a traction rope.
2. The high-safety-coefficient maintenance platform for the hydropower station generator set, as set forth in claim 1, wherein the outer edge of the bottom surface of the upper platform is provided with an annular track, a lifting appliance is installed on the annular track, and a movable plate capable of being opened and closed is arranged on the surface of the upper platform corresponding to the annular track.
3. The high safety factor overhaul platform for a hydroelectric generating set as claimed in claim 1, wherein the lower platform comprises a bottom plate, a panel and a support frame arranged between the bottom plate and the panel, and the support frame is of a staggered steel structure.
4. The high safety factor overhaul platform for a hydroelectric generating set, as claimed in claim 1, wherein the support is of a regular polygon frame type structure, and comprises a plurality of support columns arranged along the endpoints of the regular polygon.
5. The high-safety-coefficient maintenance platform for the hydropower station generator set, as set forth in claim 1, wherein the movable platform is of an annular plate-shaped structure, the inner side of the movable platform is tightly attached to the side face of the support, and the projection of the movable platform on a horizontal plane does not exceed the range of the upper platform and the lower platform.
6. The high safety factor maintenance platform for a hydroelectric generating set of claim 5, wherein the mobile platform comprises a radial support and a plurality of layers of annular base plates paved on the support, and the annular base plates are of detachable structures.
7. The high-safety-coefficient maintenance platform for the hydropower station generator set, as set forth in claim 1, wherein the end of the traction rope is provided with a hanging hook, a connecting hole is formed in the upper surface of the inner side of the mobile platform corresponding to the hanging hook, and the hanging hook is detachably connected with the connecting hole.
8. A high safety factor maintenance platform for a hydroelectric generating set as claimed in claim 1, wherein one side of the support is provided with a safety ladder, and the safety ladder is connected to the power platform from the lower platform.
CN202210298024.4A 2022-03-25 2022-03-25 A high safety factor maintenance platform for hydropower station generator sets Active CN114737538B (en)

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CN202210298024.4A CN114737538B (en) 2022-03-25 2022-03-25 A high safety factor maintenance platform for hydropower station generator sets

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CN202210298024.4A CN114737538B (en) 2022-03-25 2022-03-25 A high safety factor maintenance platform for hydropower station generator sets

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CN114737538B true CN114737538B (en) 2025-09-23

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116873823A (en) * 2023-06-30 2023-10-13 中国长江电力股份有限公司 Lifting platform for renovation and construction of runner room and its lifting method

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CN2732896Y (en) * 2004-08-31 2005-10-12 北京康得环保科技股份有限公司 Tail water inspection and repair platform
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CN109424506A (en) * 2017-09-01 2019-03-05 赵晓军 The dual-purpose tower of one frame
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Publication number Priority date Publication date Assignee Title
CN2926179Y (en) * 2006-05-22 2007-07-25 董飞 Horizontal liftable platform
CN107269476A (en) * 2017-08-15 2017-10-20 国电联合动力技术有限公司 A kind of tower frame for wind generating set lift maintenance platform system
CN109424504A (en) * 2017-09-01 2019-03-05 赵晓军 The construction method of tower
CN216999593U (en) * 2022-03-25 2022-07-19 宜昌远科自动化有限公司 A movable maintenance platform of multilayer for power station generating set

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