CN216999593U

CN216999593U - A movable maintenance platform of multilayer for power station generating set

Info

Publication number: CN216999593U
Application number: CN202220698892.7U
Authority: CN
Inventors: 李远飞
Original assignee: Yichang Yuanke Automation Co ltd
Current assignee: Yichang Yuanke Automation Co ltd
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2022-07-19
Anticipated expiration: 2032-03-25

Abstract

The utility model provides a multilayer movable type maintenance platform for a hydropower station generator set, which 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 moving up and down along the support is arranged in the channel, a movable type moving platform is arranged around the outside of the support, the moving platform is fixedly connected with the lift car and moves up and down along the support, a vertical opening is arranged on one side of the support, and the side, corresponding to the opening, of the lift car is communicated with the surface of the moving platform. The utility model has three load-bearing platforms, thereby providing a large-area and stable aerial platform, covering all directions in the vertical direction of the internal space of the generator set, enabling workers to stand on three different platforms to carry out various operations such as installation, disassembly, maintenance and the like, having higher construction stability and safety factor, bearing large-scale working equipment and being beneficial to efficiently finishing maintenance and repair.

Description

A movable maintenance platform of multilayer for power station generating set

Technical Field

The utility model relates to the technical field of maintenance equipment of hydropower stations, in particular to a multilayer movable type maintenance platform for a generator set of a hydropower station.

Background

The electric power system is indispensable power energy for people's life and production in modern society, and hydroelectric power generation is the pioneer of the electric power industry. Hydroelectric power generation is an important component in the electric power engineering of China, and rivers and lakes in China are widely distributed and have huge fall and abundant resource advantages. Because hydroelectric power generation has the characteristics of cleanness, high efficiency and stable and sufficient energy supply, more and more people pay more attention to hydroelectric engineering.

The hydropower station consists of a hydraulic system, a mechanical system, an electric energy generating device and the like, is a hydro-junction project for converting water energy into electric energy, and the sustainability of electric energy production requires that the utilization of the water energy of the hydropower station is uninterrupted. Through the construction of a reservoir system of a hydropower station, the distribution of hydraulic resources on time and space is artificially adjusted and changed, and the sustainable utilization of the hydraulic resources is realized. In order to effectively convert the water energy in the reservoir into electric energy, the hydropower station needs to be realized by a water electromechanical system which mainly comprises a pressure water conduit, a water turbine, a generator, a draft tube and the like.

The water turbine is a key device of the hydroelectric generating set and has the function of converting the kinetic energy of water flow into rotation of the water turbine, so that the rotation of the generator is driven. When the water turbine is out of order and needs to be repaired or normally maintained, the water turbine needs to be hoisted, and then the water turbine body and the channel where the water turbine body is installed need to be manually overhauled. Because the hydraulic turbine is installed in vertical space, the below is the rivers export, lacks the position of standing. The traditional maintenance process is that a scaffold is adopted to be erected on the edge, and then a maintainer works through the scaffold. However, the bottom of the scaffold is not supported, and the scaffold is fixed only through the side face, so that the scaffold is complex to construct, has low safety factor and is difficult to place large-scale working equipment. There is therefore a need for a better service device.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a multilayer movable type maintenance 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 utility model, the multilayer movable type 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, a hollow channel is arranged in the support, a lift car moving up and down along the support is arranged in the channel, the movable type 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, a vertical opening is formed in one side of the support, the length of the opening is matched with the height of the support, and the side, corresponding to the opening, of the lift car is communicated with the surface of the moving platform.

The technical principle of the utility model is as follows: the device comprises three load-bearing platforms, wherein an upper platform is fixedly connected with a flange surface of a seat ring arranged on a generator set, so that the interior of the seat ring is maintained; the lower platform is fixedly connected with a tail water pipe taper pipe section of the generator set, so that the installation, the removal and the maintenance of the runner chamber are met; still prop up moving platform and car through the support for the staff can freely remove in vertical direction, is under construction to various other equipment of installing on vertical face, and can reduce the observation degree of difficulty to the construction situation.

Furthermore, the outer edge of the bottom surface of the upper platform is provided with an annular rail, a lifting appliance is installed on the annular rail, and a movable plate capable of being opened and closed is arranged on the surface of the upper platform corresponding to the annular rail.

Further, 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 a steel structure arranged in a staggered mode.

Furthermore, the support is of a regular polygon frame type structure and comprises a plurality of support columns arranged along the end points of the regular polygon.

Furthermore, a power platform is arranged at the top of the support, a motor is arranged on the power platform, 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 mobile platform is of an annular plate-shaped structure, the inner side of the mobile platform is tightly attached to the side face of the support, and the projection of the mobile platform on the horizontal plane does not exceed the range of the upper platform and the lower platform.

Furthermore, the mobile platform comprises a radial support and a plurality of layers of annular base plates paved on the radial support, and the annular base plates are of detachable structures.

Furthermore, a clamping and locking device is further arranged on the inner edge of the moving platform and comprises a clamping head and a controller, the clamping head is of an L-shaped structure, one end of the clamping head is rotatably installed on the moving platform, the other end of the clamping head is rotatably arranged towards the support, and the controller controls the clamping head to rotate and stop; the side face of the support is also provided with a baffle corresponding to the clamping head, the baffle is horizontally arranged, and the baffles are arranged in sequence at equal intervals along the vertical direction.

Furthermore, the haulage rope end is provided with the lifting hook, the inboard upper surface of moving platform corresponds the position of lifting hook and is equipped with the connecting hole, the lifting hook can be dismantled with the connecting hole and be connected.

Furthermore, 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.

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model has three load-bearing platforms, thereby providing a large-area and stable aerial platform, covering all the positions of the internal space of the generator set in the vertical direction, enabling the working personnel to stand on three different platforms to carry out various operations such as installation, disassembly, maintenance and the like, having higher construction stability and safety factor, bearing large-scale working equipment, and being beneficial to efficiently finishing maintenance and repair;

2. the movable platform can move up and down along the bracket, so that the height can be adjusted at any time according to needs, all positions on the side surface of the installation space of the whole water turbine can be covered, and more convenient maintenance work is realized;

3. the elevator car is also provided with the elevator car positioned in the support, wherein the elevator car moves along with the moving platform, when the height of the moving platform needs to be adjusted, a worker enters the elevator car, and after the adjustment is finished, the worker leaves the elevator car after the moving platform is stabilized, so that the elevator car is safer, and the danger that the worker falls in high altitude due to the shaking of the moving platform can be avoided;

4. according to the utility model, the clamping 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 matching of the clamping head and the baffle, so that the stability and the safety coefficient of the mobile platform are enhanced;

5. according to the utility model, 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 mobile 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 structural diagram of a portion of the present invention that does not include an upper platform.

FIG. 3 is a side view of an embodiment of the present invention.

Fig. 4 is an enlarged schematic view of a portion a of 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 mobile platform; 4. a support; 5. a car; 6. a power platform; 7. a latch device; 11. a movable plate; 12. an annular track; 21. a base plate; 22. a panel; 23. a support frame; 31. an inner annular backing plate; 32. an outer annular backing plate; 33. connecting holes; 41. a safety ladder; 42. a baffle plate; 51. a cabin door; 61. a motor; 62. a hauling rope; 63. a hook; 71. clamping a head; 72. and a controller.

Detailed Description

The technical solution of the present invention is further explained with reference to the drawings and the embodiments.

As shown in fig. 1, an embodiment of the present invention provides a movable multilayer overhaul platform for a hydroelectric generating set, including a lower platform 2, a support 4, and an upper platform 1, which are sequentially arranged from bottom to top. The upper platform 1 is fixedly connected with a flange surface of a seat ring installed on a generator set, so that the interior of the seat ring is maintained; the lower platform 2 is fixedly connected with a tail water pipe taper pipe section of the generator set, so that the installation, the removal and the maintenance of the runner chamber are met; the moving platform 3 and the cage 5 are also supported by the support 4 so that the worker can freely move in the vertical direction.

In this embodiment, the outer edge of the bottom surface of the upper platform 1 is provided with an annular rail 12, a lifting appliance (not shown) is installed on the annular rail 12, and a movable plate 11 which can be opened and closed is arranged on the surface of the upper platform 1 corresponding to the annular rail 12. The movable plate 11 is closed when the surface of the upper platform 1 is constructed, so that safety accidents are avoided, and when the work of the upper platform 1 is completed and materials need to be transported through the upper platform 1, the movable plate 11 is opened to operate the lifting appliance. In this embodiment, the load of the circular rail 12 is not less than 6T, and four electric hoists with a load of 1.5T or more are installed as a hanger, so as to transport equipment, materials and wastes.

As shown in fig. 2, the lower platform 2 includes a bottom plate 21, a face plate 22 and a supporting frame 23 disposed between the bottom plate 21 and the face plate 22, the supporting frame 23 is a steel structure disposed in a staggered manner, and the three components are a chassis structure having high strength and bearing capacity and low self weight. Wherein, the supporting frame 23 comprises a plurality of mutually perpendicular main steel materials and a plurality of staggered reinforcing structures, 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, carried working equipment, materials and demolished objects.

As shown in fig. 3, in the present embodiment, the support 4 has a regular polygon frame structure, and the support 4 includes a plurality of support pillars disposed along end points of the regular polygon. Preferably, in the present embodiment, the support 4 is a square frame structure, and includes four support columns respectively disposed at the end points of the square. And reinforcing ribs are arranged between the adjacent supporting columns so as to form a multi-point connected frame and improve the overall structural strength.

Support 4 is inside to be equipped with hollow passageway, the inside car 5 that reciprocates along support 4 that is equipped with of passageway, support 4 outside around being provided with movable moving platform 3, moving platform 3 reciprocates along support 4 with 5 fixed connection of car and simultaneously, support 4 wherein one side is equipped with vertical opening, the height of open-ended length cooperation support 4, one side and the 3 surface intercommunications of moving platform that car 5 corresponds the opening place. In the embodiment, preferably, an openable and closable cabin door 51 is further arranged on one side of the car 5 corresponding to the opening, so that an internal passenger is prevented from accidentally sliding out of the car 5, and the safety factor is further improved. In addition, in this embodiment, the moving platform 3 is an annular plate-shaped structure, the inner side of the moving platform 3 is tightly attached to the side surface of the bracket 4, and the projection of the moving platform 3 on the horizontal plane does not exceed the range of the upper platform 1 and the lower platform 2.

In the utility model, the mobile platform 3 comprises a radial support 4 and a plurality of layers of annular base plates paved on the support 4, wherein the annular base plates are of detachable structures. The present embodiment includes a two-layer structure of an inner ring pad 31 and an outer ring pad 32, wherein the outer ring pad 32 is a detachable structure, and the total area of the ring pad can be reduced after detachment, so that the mobile platform 3 can pass through some parts having protrusions and perform construction. In the preferred embodiment, the load bearing capacity of the inner annular pad 31 is not less than 7T, and the load bearing capacity of the inner annular pad 31 is not less than 3T, so that the total mass requirement of at least 20 workers and corresponding equipment can be met.

When the mobile platform 3 is fixed at a certain height, a worker enters the car 5 and moves to the same height along with the car, and then opens the cabin door 51 to enter the surface of the mobile platform 3, so that the work can be started; when the height of the moving platform 3 needs to be adjusted, a 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 the moving platform 3 to the moving platform 3 from the car 5 after being fixed again. Therefore, when the mobile platform 3 moves, no worker is on the surface, the high-altitude falling dangerous condition is not easy to occur, meanwhile, the worker does not completely leave the equipment, the mobile platform 3 can be rapidly transferred to the surface to continue working after being fixed, and the efficiency is high.

In the utility model, the moving platform 3 and the car 5 are in an integrated structure, the car 5 is positioned in the support 4, the moving platform 3 is positioned outside the support 4, and the moving platform 3 and the car 5 can move simultaneously only by independently driving the moving platform 3 or the car 5. It should be noted that the car 5 and the moving platform 3 may be connected by using a fixed structure such as a steel frame, and the side surface of the bracket 4 corresponding to the connecting surface is not provided with a reinforcing rib, so as to avoid obstructing the movement of the car 5 and the moving platform 3. When the worker is positioned in the car 5, the worker can directly move to the required height along with the moving platform 3 without additionally driving the car 5 to move.

As shown in fig. 5, in a further embodiment of the present invention, a power platform 6 is disposed on the top of the support 4, and since the support 4 is a square frame in this embodiment, the power platform 6 is respectively provided with motors 61 at four corners of the support 4, the motors 61 are driven to connect with spools, and the spools are connected with the mobile platform 3 through a traction rope 62. When the motor 61 works, the traction rope 62 is rolled up by the spool to pull up the mobile platform 3; when the motor 61 rotates reversely to release the spool, the moving platform 3 is allowed to descend automatically under the action of gravity. Because the moving platform 3 and the car 5 are of an integrated structure, the movement of the moving platform 3 driven by the motor 61 also drives the car 5 to move. Furthermore, the end of the pulling rope 62 is provided with a hook 63, the position of the inner upper surface of the mobile platform 3 corresponding to the hook 63 is provided with a connecting hole 33, and the hook 63 is detachably connected with the connecting hole 33. In this way, the hook 63 can be detached from the connecting hole 33, which is convenient for maintenance of the motor 61, the spool or the moving platform 3 respectively.

Preferably, one side of the bracket 4 is provided with an emergency ladder 41, and the emergency ladder 41 is connected to the power platform 6 from the lower platform 2. This allows the user to directly enter the power platform 6 for installation and maintenance of the motor 61 or the spool.

As shown in fig. 4, since the moving platform 3 and the car 5 are suspended on the support 4 by the traction ropes 62, there may be some shaking. 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 locking head 71 and a controller 72, the locking head 71 is in an L-shaped structure, one end of the locking head 71 is rotatably mounted on the moving platform 3, the other end of the locking head is rotatably disposed toward the bracket 4, the controller 72 controls the locking head 71 to rotate and stop, and in this embodiment, the driving motor 61 is used as the controller 72. The side surface of the support 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 arranged in the vertical direction at equal intervals. Controller 72 is automatically controlled telescopic link in this embodiment, and telescopic link one end is fixed on moving platform 3, and the other end is connected with dop 71, and when the telescopic link extended, it is rotatory towards support 4 one side to promote dop 71 to the final card is established in baffle 42 top, and dop 71 is fixed with support 4 with baffle 42 soon moving platform 3 like this, promotes moving platform 3's stability. When the mobile platform 3 needs to be moved, the telescopic rod is controlled to be contracted, and the chuck 71 is driven to rotate away from the support 4.

It should be noted that in this embodiment, a safety factor of 6 times is adopted for all the load-bearing structures.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, 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 or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. The utility model provides a movable maintenance platform of multilayer for power station generating set which characterized in that: include from supreme lower platform, support and the upper mounting plate that sets gradually down, the inside hollow passageway that is equipped with of support, the inside car that reciprocates along the support that is equipped with of passageway, the support outside around being provided with movable moving platform, moving platform reciprocates along the support with car fixed connection, wherein one side of support is equipped with vertical opening, the height of open-ended length cooperation support, one side and the moving platform surface intercommunication at the car correspondence opening place.

2. The mobile multilayer service platform for hydroelectric generating sets as defined in claim 1, wherein: the outer edge of the bottom surface of the upper platform is provided with an annular rail, a lifting appliance is mounted on the annular rail, and a movable plate capable of being opened and closed is arranged on the surface of the upper platform corresponding to the annular rail.

3. The mobile multilevel access platform for hydroelectric power generating sets of claim 1, wherein: 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 a steel structure which is arranged in a staggered mode.

4. The mobile multilevel access platform for hydroelectric power generating sets of claim 1, wherein: the support is of a regular polygon frame type structure and comprises a plurality of support columns arranged along the end points of a regular polygon.

5. The mobile multilayer service platform for hydroelectric generating sets as defined in claim 1, wherein: the support is characterized in that a power platform is arranged at the top of the support, a motor is arranged on the power platform, the motor is connected with a spool in a driving mode, and the spool is connected with the moving platform through a traction rope.

6. The mobile multilayer service platform for hydroelectric generating sets as defined 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 the horizontal plane does not exceed the range of the upper platform and the lower platform.

7. The mobile multilayer service platform for hydroelectric generating sets as defined in claim 6, wherein: the mobile platform comprises a radial support and a plurality of layers of annular base plates paved on the radial support, and the annular base plates are of detachable structures.

8. The mobile multilevel access platform for hydroelectric power generating sets of claim 1, wherein: the inner edge of the moving 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 installed on the moving platform, the other end of the clamping head is rotatably arranged towards the support, and the controller controls the clamping head to rotate and stop; the support side still is equipped with the baffle that corresponds the dop, the baffle level sets up, and a plurality of baffles equidistant vertical direction of edge arranges in proper order.

9. The mobile multilevel access platform for hydroelectric power generating sets of claim 5, wherein: the haulage rope end is provided with the lifting hook, the inboard upper surface of moving platform corresponds the position of lifting hook and is equipped with the connecting hole, the lifting hook can be dismantled with the connecting hole and be connected.

10. The mobile multilayer service platform for hydroelectric generating sets as defined in claim 5, wherein: one side of the support is provided with a safety ladder which is connected to the power platform from the lower platform.