CN219317089U

CN219317089U - Repairing device for runner chamber of iron casting water turbine

Info

Publication number: CN219317089U
Application number: CN202320259782.5U
Authority: CN
Inventors: 姚海宁; 林晓峰
Original assignee: Fujian Huide Power Generation Equipment Co ltd
Current assignee: Fujian Huide Power Generation Equipment Co ltd
Priority date: 2023-02-20
Filing date: 2023-02-20
Publication date: 2023-07-07
Anticipated expiration: 2033-02-20

Abstract

The utility model provides a repairing device for a runner chamber of an iron casting water turbine, which comprises the following components: the inner wall of the rotating wheel chamber main body is connected with a plurality of stainless steel lining plates; the fixed components are respectively arranged between the rotating wheel chamber main body and the stainless steel lining plate, each fixed component comprises a fixing bolt, and fixing holes matched with the fixing bolts are formed in the stainless steel lining plate. According to the repairing device for the runner chamber of the iron casting water turbine, the fixing bolt matched with the fixing hole is arranged between the runner chamber main body and the stainless steel lining plate, so that the mode of welding and fixing at present can be replaced, and the repairing device can be convenient and rapid to detach and replace the stainless steel lining plate in the later period.

Description

Repairing device for runner chamber of iron casting water turbine

Technical Field

The utility model relates to the field of hydroelectric generation, in particular to a repairing device for a runner chamber of an iron casting water turbine.

Background

The main equipment of the hydropower station is a hydraulic generator, and the water energy drives an impeller positioned in a runner chamber to rotate, and then drives a generator set to generate electricity.

The runner chamber belongs to a through-flow part in a hydroelectric generating set, and due to the reasons of higher water quality and silt content, large temperature difference and the like, after the running of a power station for a plurality of years, the internal contact surface of the through-flow part is corroded seriously, and the runner chamber is integrally cast and molded by cast iron materials, so that the runner chamber is corroded seriously under the action of silt and cavitation, the gap between the outer edge of a turbine blade and the runner chamber is increased, the hydraulic loss of a water turbine is caused, and the power generation efficiency of the whole hydroelectric generating set is influenced.

In order to ensure the generating efficiency of the unit, the rotating wheel chamber is corroded to a certain degree, repair or replacement is necessary. However, because the rotor is an integrally formed part, the rotor is difficult to disassemble, long in installation period and expensive in manufacturing cost when the rotor chamber is integrally replaced;

therefore, the problems can be well solved by integrally cutting the corrosion part in the runner chamber of the iron casting water turbine and then adding the inner liner made of stainless steel according to the original size for repairing.

Because the cast iron material is different from the stainless steel material for repair, the physical property difference, the fixed structure is also influenced by the repair process to influence the service life after repair, and simultaneously, the stress, deformation and the like of the lining material after repair become the technical problems to be overcome by the repair method,

meanwhile, the inner walls of the existing stainless steel lining plates and the rotating wheel chamber are fixed in a welding mode, and are connected in a welding mode, so that inconvenience is caused when the stainless steel lining plates are detached when the stainless steel lining plates need to be replaced after long-time use.

Therefore, it is necessary to provide a repairing device for the runner chamber of the iron casting water turbine, which solves the technical problems.

Disclosure of Invention

The utility model provides a repairing device for a runner chamber of an iron casting water turbine, which solves the problem that inconvenience is caused when the stainless steel lining plate is dismounted in the later period because the runner chamber is fixed with the stainless steel lining plate in a welding mode.

In order to solve the technical problems, the utility model provides a repairing device for a runner chamber of an iron casting water turbine, which comprises the following components:

the inner wall of the rotating wheel chamber main body is connected with a plurality of stainless steel lining plates;

the fixed components are respectively arranged between the rotating wheel chamber main body and the stainless steel lining plate.

Preferably, the fixing assembly comprises a fixing bolt, and a fixing hole matched with the fixing bolt is formed in the stainless steel lining plate.

Preferably, the surface of runner room main part is provided with coupling assembling, coupling assembling includes the arc, the standing groove has all been seted up to the both sides on arc surface.

Preferably, the inside of standing groove is provided with spacing subassembly, spacing subassembly includes circular piece, the both sides on circular piece surface all are connected with the stopper, circular hole has been seted up on the surface of circular piece.

Preferably, the surface of the placing groove is provided with a movable groove matched with the limiting block, and one side of the inner wall of the movable groove is provided with a limiting groove matched with the limiting block.

Preferably, a rotating assembly is arranged in the round block, the rotating assembly comprises a rotating handle, and one end of the rotating handle is connected with an external thread block.

Preferably, the surface of the rotating handle is sleeved with a positioning seat, and the bottom of the positioning seat is connected with the surface of the circular block.

Compared with the related art, the repairing device for the runner chamber of the iron casting water turbine has the following beneficial effects:

the utility model provides a repairing device for a runner chamber of an iron casting water turbine, which is characterized in that a fixing bolt matched with a fixing hole is arranged between a runner chamber main body and a stainless steel lining plate to replace the existing welding and fixing mode, so that the repairing device can conveniently and conveniently detach and replace the stainless steel lining plate in the later period, and the replaced stainless steel lining plate is more convenient to replace after cavitation is performed again.

Drawings

FIG. 1 is a schematic view of a first embodiment of an apparatus for repairing a runner chamber of an ironcasting turbine in accordance with the present utility model;

FIG. 2 is an enlarged schematic view of portion A shown in FIG. 1;

FIG. 3 is a schematic view of a second embodiment of an apparatus for repairing a runner chamber of an ironcasting turbine in accordance with the present utility model;

FIG. 4 is an enlarged schematic view of portion B shown in FIG. 3;

FIG. 5 is an enlarged schematic view of portion C shown in FIG. 4;

FIG. 6 is a schematic perspective view of the connection assembly shown in FIG. 1;

fig. 7 is a schematic view of the structure of the connection assembly shown in fig. 3.

Reference numerals in the drawings: 1. a main body of the rotating wheel chamber, 2, a stainless steel lining plate,

3. a fixing component 31, a fixing bolt 32 and a fixing hole,

4. a connecting component, 41, an arc-shaped plate, 42 and a placing groove,

5. a limiting component, 51, a round block, 52, a limiting block, 53 and a limiting groove,

6. a movable groove, 7, a circular hole,

8. the device comprises a rotating assembly 81, a rotating handle 82, an external thread block 83 and a positioning seat.

Detailed Description

The utility model will be further described with reference to the drawings and embodiments.

First embodiment

Referring to fig. 1 and fig. 2 in combination, fig. 1 is a schematic structural diagram of a first embodiment of a runner chamber repairing apparatus for an iron casting water turbine according to the present utility model; fig. 2 is an enlarged schematic view of a portion a shown in fig. 1. An iron casting water turbine runner chamber repair apparatus comprising:

the rotating wheel chamber comprises a rotating wheel chamber main body 1, wherein a plurality of stainless steel lining plates 2 are connected to the inner wall of the rotating wheel chamber main body 1;

the fixed components 3 are respectively arranged between the runner chamber main body 1 and the stainless steel lining plate 2.

The fixing assembly 3 comprises a fixing bolt 31, and a fixing hole 32 matched with the fixing bolt 31 is formed in the stainless steel lining plate 2.

The fixing bolt 31 fixes the stainless steel lining plate 2 from the surface of the rotating wheel chamber main body 1 to the inside of the rotating wheel chamber main body 1, and the surface of the fixing bolt 31 and the inner wall of the fixing hole 32 are provided with matched threads.

The utility model provides a repairing device for a runner chamber of an iron casting water turbine, which has the following working principle:

in use, when the plurality of stainless steel lining plates 2 are connected with the runner chamber main body 1, the fixing bolts 31 penetrate through the surface of the runner chamber main body 1 and are in threaded connection with the fixing holes 32 in the stainless steel lining plates 2.

the utility model provides a repairing device for a runner chamber of an iron casting water turbine, which is characterized in that a fixing bolt 31 is arranged between a runner chamber main body 1 and a stainless steel lining plate 2 and is matched with a fixing hole 32 to replace the existing welding and fixing mode, so that the repairing device can be convenient and rapid to detach and replace the stainless steel lining plate 2 in the later period.

Second embodiment

Referring to fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7 in combination, another repair device for an iron casting turbine runner chamber is provided according to a second embodiment of the present application. The second embodiment is merely a preferred manner of the first embodiment, and implementation of the second embodiment does not affect the implementation of the first embodiment alone.

Specifically, the second embodiment of the present application provides a cast iron water turbine runner chamber prosthetic devices's difference lies in that a cast iron water turbine runner chamber prosthetic devices, runner chamber main part 1's surface is provided with coupling assembling 4, coupling assembling 4 includes arc 41, standing grooves 42 have all been seted up to the both sides on arc 41 surface.

The use of the arcuate plate 41 can fix the two rotating assemblies 8 to prevent the rotating assemblies 8 from falling off.

The inside of standing groove 42 is provided with spacing subassembly 5, spacing subassembly 5 includes circular piece 51, the both sides of circular piece 51 surface all are connected with stopper 52, circular hole 7 has been seted up to the surface of circular piece 51.

A circular communication hole matched with the circular block 51 is formed in the placing groove 42, and the circular hole 7 is convenient for an operator to rotate the circular block 51 in the circular communication hole.

The surface of the placing groove 42 is provided with a movable groove 6 matched with the limiting block 52, and one side of the inner wall of the movable groove 6 is provided with a limiting groove 53 matched with the limiting block 52.

The setting of movable groove 6 is convenient for stopper 52 to place to the inside of circular intercommunicating pore, and the limiting groove 53 sets up in the inside of arc 41, uses limiting groove 53 can block stopper 52 fixedly, can prevent that circular piece 51 from coming off in the inside of circular intercommunicating pore.

The inside of circular piece 51 is provided with rotation subassembly 8, rotation subassembly 8 includes rotation handle 81, the one end of rotation handle 81 is connected with external screw thread piece 82.

Screw holes matched with the external thread blocks 82 are formed in the stainless steel lining plate 2, and the external thread blocks 82 can be driven to rotate by the rotating plate 81.

The surface of the rotating handle 81 is sleeved with a positioning seat 83, and the bottom of the positioning seat 83 is connected with the surface of the circular block 51.

The positioning seat 83 is convenient for positioning the rotating handle 81 when being installed.

when the rotary handle is used, the rotary handle 81 with the limiting block 52, the round block 51 and the external thread block 82 passes through the round communication hole in the placing groove 42, the rotary handle 81 is rotated to drive the external thread block 82 to rotate, the external thread block 82 is gradually meshed with the threaded hole in the stainless steel lining plate 2, after the external thread block 82 is connected with the threaded hole, the limiting block 52 is driven to move to the inside of the movable groove 6 under the action of the round block 51, after the limiting block 52 moves to the inside of the movable groove 6, an operator drives the round block 51 to rotate through the round hole 7 on the surface of the round block 51, and when the round block 51 rotates, the limiting block 52 is driven to be in coincident connection with the limiting groove 53.

the utility model provides a runner chamber repairing device for an iron casting water turbine, wherein a connecting component 4 and a rotating component 8 are arranged on the surface of a runner chamber main body 1, so that the stainless lining plate 2 and the runner chamber main body 1 are conveniently connected, and a limiting component 5 is arranged in a placing groove 42, so that the rotating component 8 can be fixed, and the occurrence of loosening of an external thread block 82 during use is prevented.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. An iron casting hydraulic turbine runner chamber prosthetic device, characterized by comprising:

2. The cast iron water turbine runner chamber repair device of claim 1, wherein the fixing assembly comprises a fixing bolt, and a fixing hole matched with the fixing bolt is formed in the stainless steel lining plate.

3. The cast iron water turbine runner chamber repair device according to claim 1, wherein a connecting assembly is arranged on the surface of the runner chamber main body, the connecting assembly comprises an arc-shaped plate, and placing grooves are formed in two sides of the surface of the arc-shaped plate.

4. The cast iron part hydraulic turbine runner chamber repairing device according to claim 3, wherein a limiting assembly is arranged in the placing groove, the limiting assembly comprises a round block, limiting blocks are connected to two sides of the surface of the round block, and round holes are formed in the surface of the round block.

5. The repairing device for the runner chamber of the ironcasting water turbine according to claim 4, wherein a movable groove matched with the limiting block is formed in the surface of the placing groove, and a limiting groove matched with the limiting block is formed in one side of the inner wall of the movable groove.

6. The cast iron water turbine runner chamber repair apparatus of claim 4, wherein a rotating assembly is provided inside the circular block, the rotating assembly comprising a rotating handle, one end of the rotating handle being connected to an externally threaded block.

7. The cast iron water turbine runner chamber repair device according to claim 6, wherein a positioning seat is sleeved on the surface of the rotating handle, and the bottom of the positioning seat is connected with the surface of the circular block.