JPH09100642A - Power generation facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the capacity of turbine building, and improve the workability of disassembling and inspection of a turbine and a power generator. SOLUTION: Transfer equipment composed of such as a carriage 9, a rail 10 is provided to communicate adjacent ceiling crane working areas 6 of a turbine building 1 with each other. Disassembled parts of turbine 2 and power generator 3 of one turbine building 1 inspected are placed tentatively in another turbine building adjacent thereto through a carriage 9, ceiling crane, communication part 8 of partitioning wall 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power generation facility, and more specifically, to a plurality of turbine buildings in a power plant (here, a plurality of turbine buildings are common to those other than a building with separate foundations). This includes technology for maintaining and inspecting turbines and generators of the same basic building that are divided into rooms.

[0002]

2. Description of the Related Art A turbine building, which is a main building that constitutes a power plant, has a large size including a turbine and a generator.
Heavy equipment is installed. These equipment are maintained and inspected in annual inspections, and on the floor where the turbines and generators are installed, the overhead cranes installed above are used to disassemble and assemble the equipment for restoration. There is.

This overhead crane is generally installed so as to run parallel to the axial direction of the turbine / generator. The traverse range (between crane pillars) of the hook (hoisting device) of this overhead crane is generally about 40 m from the viewpoint of not unnecessarily increasing the size of the building and securing the strength of the crane props. When temporarily disposing the turbine and generator disassembled parts on the floor surface (which is called auxiliary space) beyond the area (traveling range of overhead crane, traverse range), use auxiliary equipment such as jib crane and monorail separately. doing.

The parts that are disassembled during the periodic inspection are temporarily placed on the floor surface called the operating floor where the turbine / generator is installed. These parts usually cover about 100 points and occupy most of the area of the operating floor.

On the other hand, in recent years, there has been a tendency to reduce the building volume mainly from the viewpoint of economy, but even if the plane size of the portion below the operating floor of the turbine building can be reduced, The floor area required for temporary placement was a constraint in reducing the building size.

Another prior art is Japanese Patent Laid-Open No. 55-
As disclosed in Japanese Patent No. 132867, a package of a plurality of overhead cranes for maintenance and inspection (turbine building)
There is something to share. This conventional example integrates multiple packages, installs turbines / generators between turbine buildings in parallel, and completely removes the walls between the buildings, which allows the overhead crane to operate on multiple turbines / generators. It is installed so that it runs in a direction orthogonal to each axis of the machine.

However, in this conventional example, there is a structural problem due to the removal of the partition wall (for example, a problem in the strength of the building, or when one turbine building is in operation, the other turbine building is regularly inspected. , The area covered by ventilation and air conditioning equipment will be hindered). In addition, in order to completely cover the maintenance / inspection range of the turbine / generator with the overhead crane, the space between the crane pillars must be at least about 60 m in the turbine building of the power plant with an output of about 1000 MWe or more. There is a limit to application from the viewpoint of securing the strength of.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-mentioned circumstances of the prior art, and its main purpose is to provide an integrated arrangement of turbine buildings, and to provide a turbine / generator, etc. at the time of regular inspection. The rationalization of the floor area for disassembling and temporarily placing equipment is to reduce the size of the turbine building and easily secure the strength of the crane columns. Another object of the present invention is to provide a power generation facility capable of solving structural problems even when a plurality of turbine buildings are integrated into one.

Another object is to improve the workability of maintenance and inspection of turbines, generators, etc., and to reduce the amount of building shields.

[0010]

Means for Solving the Problems In order to achieve the above object, the following means for solving the problems are basically proposed.

[0011] One is a power generation facility in which a turbine for power generation, a generator connected to the turbine, a dismantling and assembling crane for maintenance and inspection of the turbine and the generator are installed in a turbine building, A plurality of turbine buildings are arranged adjacent to each other via a partition wall, a communication port between the turbine buildings is provided on the partition wall, and a transfer device is provided to move between the plurality of turbine buildings through the communication port. The device is characterized in that the disassembled parts of the turbine / generator from the overhead crane of each of the turbine buildings can be delivered and received within the traffic range (this is a first problem solving means).

In addition to the structure of the first problem solving means, another is that an auxiliary space having a floor surface for auxiliary maintenance / inspection is provided between a plurality of turbine buildings. It is proposed to connect each turbine building through the communication port of the partition wall and the transfer device, and to additionally install an overhead crane on the upper part of the auxiliary space (this will be referred to as a second problem solving means).

Another is to propose a turbine building on the side closer to the site boundary of the plurality of turbine buildings, in which a local shield ceiling is installed on the site boundary side from the turbine / generator axis. The third problem solving means).

According to the first problem solving means, even if the plurality of turbine buildings are integrated (intensive arrangement), the partition wall is provided between the turbine buildings, so that the above-mentioned structural problem occurs. Can be avoided. Moreover, even if such a partition wall is interposed, the floor area of the turbine building can be rationalized in the following manner.

That is, when performing maintenance and inspection in one of the adjacent turbine buildings, in addition to temporarily disposing the disassembled parts of the turbine / generator on the operating floor of the own turbine building, a part of the disassembled parts is ceiling-mounted. Transfer (install) from a crane to a moving body of a transfer device (for example, a carrier vehicle such as a trolley),
After that, this disassembled part is transferred to the next (other) turbine building through the communication port provided on the partition wall by the transfer device, and if there is an overhead crane (an auxiliary lifting machine such as a jib crane) in the other turbine building, (Including this), transfer parts are lifted and hung on the operation floor. Maintenance,
When the turbine / generator is reassembled after the inspection, the reverse operation is performed.

By doing so, a part of the temporary storage space for disassembled parts of one turbine building can be used as a shoulder for the adjacent turbine building, so that the so-called mutual turbine building (between unit) floor surfaces can be shared ( Rationalization) and the size (volume) of each turbine building can be reduced.

Further, according to the present invention, even if the floor surface of the turbine building is shared, an overhead crane is provided for each turbine building and the turbine building can be downsized. Shortening the distance (crossing range) makes it possible to secure the strength of crane columns.

Further, according to the second problem solving means, there are the following advantages.

As described above, the transverse range of the overhead crane is limited to about 40 m from the viewpoint of securing the strength of the crane body. When disassembling parts for turbines and generators in a range beyond this ceiling crane operating area (auxiliary space), auxiliary equipment such as jib cranes and monorails must be used, and operation is complicated. Tends to be.

In the means for solving this problem, the above-mentioned auxiliary spaces are aggregated, and the aggregated auxiliary spaces are secured between a plurality of adjacent turbine buildings, and one turbine is connected to this auxiliary space through the connection port of the partition wall. The parts disassembled in the building can be transferred by the transfer device, and the transferred parts can be temporarily placed in the auxiliary space by an overhead crane provided in the auxiliary space. As a result, the auxiliary space and the overhead crane can be shared, and the workability can be improved by omitting the use of the jib crane, the monorail and the like.

In the means for solving the first and second problems,
If one turbine building is undergoing regular inspection and the other turbine building is operating, if there is a risk of problems in terms of operation management and the range covered by ventilation and air conditioning equipment, etc. If the opening of the building partition wall can be opened and closed by a shutter or the like, this problem can be solved.

According to the third problem solving means, there are the following advantages.

Among a plurality of integrated turbine buildings, the turbine building on the side opposite to the site boundary (the side far from the site boundary) is
A skyshine countermeasure effect can be obtained by a synergistic effect of separation from the site boundary and the wall of the adjacent turbine building (the turbine building near the site boundary).

Therefore, as a measure against sky shine, the shielding means may be focused on the turbine building on the side closer to the site boundary among the plurality of turbine buildings. Even if only a local shield ceiling is provided on the site boundary side of the turbine / generator axis in the turbine building, it is possible to take measures against the sky shine, and by doing so, it is possible to suppress the increase in the building quantity.

[0025]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view showing a first embodiment of the present invention, and FIG. 2 is a vertical sectional view thereof. This embodiment is claim 1.
~ It is an application example concerning the invention of claims 3 and 5.

In this example, as shown in the figure, a plurality of (two in this case) turbine buildings 1 are divided into rooms and installed in the same basic building. That is, the plurality of turbine buildings 1 are integrated and spatially separated by the partition wall 4. These turbine buildings 1 are arranged adjacent to each other with the turbines 2 and generators 3 between the turbine buildings 3, in other words, the axes 7 aligned in parallel (including substantially parallel).

In each turbine building 1, an overhead crane 5 is installed in addition to the turbine 2 and the generator 3 described above. The overhead crane 5 travels in each turbine building 1 in parallel (including substantially parallel) to the axis line 7 of the turbine / generator, and the hoisting device traverses in a direction orthogonal to the axis line 7 of the turbine / generator. As a result, a hoisting and hoisting operation area (ceiling crane operation area) 6 of the overhead crane surrounded by a shaded frame 6 is configured. The overhead crane operation area 6 includes an installation area for the turbine 2 and the generator 3.

The partition wall 4 is provided with a communication port 8 between the turbine buildings 1. A truck 9 and a rail 10 that form a common transfer device are installed over a plurality of turbine buildings 1. In the present example, the extraction space 11 of the generator in each turbine building 1 of the partition wall 4 (this extraction space 11 serves as the extraction space when disassembling the generator 3 and is located on the axis line 7 of the turbine / generator). ) A connection port 8 is provided on the line connecting the two. In this way,
The connection port 8 is arranged at a portion other than the portion sandwiched by the turbine / generator of the adjacent turbine buildings 1.

On the other hand, the rail 10 of the transfer device has a communication port 8
Is laid on the floor surface of the turbine building 1 so as to be orthogonal to the axis line 7 of the turbine / generator shaft of the turbine buildings 1 that are adjacent to each other. In this way, the trolley 9 travels on the rail 10 and travels between the turbine buildings 1, and the generator extraction space 11 is located at a position where the traveling course and the axis line 7 of the turbine / generator intersect. .

A moving area of the carriage 9 of the transfer device and a partial area of the overhead crane operating area 6 (in this application example, the generator 3 orthogonal to the axis 7 of the turbine generator in the area 6).
(The area near one side of the side), the carriage 9 can be positioned within a position where the hook of the overhead crane 5 approaches, and in this way, the carriage 9 is within its traffic range. It is set so that disassembled parts of the turbine / generator from the overhead crane 5 of each turbine building 1 can be delivered.

Reference numeral 12 is an auxiliary space, which is set on the floor surface of the operating floor of each turbine building 1 beyond the ceiling crane operating area 6. The auxiliary space 12 in this example is set between the partition wall 4 and the overhead crane operation area 6, and between the overhead crane operation area 6 and the turbine building side wall. These auxiliary spaces are used for temporarily placing disassembled parts such as the turbine 2 and the generator 3 that cannot be placed on the floor corresponding to the overhead crane operating area 6 by using an auxiliary hoist such as a jib crane or monorail. .

According to this embodiment, the following actions and effects are obtained.

When the turbine / generator in one turbine building 1 is to be maintained and inspected, the overhead crane 5 is used at a portion corresponding to the overhead crane operating area 6 of the operating floor of the own turbine building. In addition to the temporary placement of the disassembled parts, a part of the disassembled parts is temporarily placed in its own auxiliary space 12 using an auxiliary lifting machine (for example, jib crane, monorail, etc.). Further, the disassembled parts are delivered (installed) to the trolley 9 at a position such as the generator extraction space 11 by using the overhead crane 5, and then the mounted disassembled parts are passed by the dolly 9 through the communication port 8 provided on the partition wall 4. It is transferred to the adjacent (other) turbine building 1 and the transfer parts are transferred to the floor of the other turbine building 1 (ceiling crane operating area 6 by using an auxiliary lifting machine such as an overhead crane 5 or a jib crane of the other turbine building 1). It is temporarily placed on a vacant space on the equivalent floor or the floor of the auxiliary space 12). When reassembling the turbine / generator after maintenance and inspection, the reverse operation is performed.

By doing so, a part of the temporary storage space for disassembled parts of one turbine building can be used as a shoulder for the adjacent turbine building, and so-called mutual use (rationalization) of the turbine building floor surfaces can be achieved. As a result, it is possible to reduce the size (volume) of each turbine building.

Further, according to the present embodiment, even if the floor surface of the turbine building is shared, the overhead crane 6 is provided for each turbine building 1 and the turbine building can be downsized. It is possible to secure the strength of the crane columns by shortening the distance between the columns of the overhead crane 5 (horizontal range).

Even if the plurality of turbine buildings 1 are integrated (collectively arranged), the strength of the building can be secured by interposing the partition wall 4 between the turbine buildings 1.

Further, by devising such an arrangement as the present embodiment in the traveling course of the truck 9 and the position of the connection port 8,
The traveling course of the truck 9 is sufficiently secured over the adjacent turbine building without being obstructed by the presence of the turbine / generator.

[0039] Further, the pull-out space 1 for disassembling the generator 3 on the traveling course of the transfer means (the truck 9 and the rail 10).
By sharing the same position with position 1, it is possible to avoid building size expansion due to installation of transfer equipment.

Next, a second embodiment of the present invention will be described with reference to FIGS. FIG. 3 is a plan view of the present embodiment, FIG. 4 is a longitudinal sectional view thereof, and is an application example relating to claim 4.

The basic requirements are the same as in the first embodiment, but in this embodiment, the auxiliary space 12 'outside the overhead crane operating area 6 is integrated between the two turbine buildings 1. Install. The auxiliary space 12 'has a floor for auxiliary maintenance / inspection (for temporary disassembly of parts) as described above. The partition walls 4 are doubly arranged so as to sandwich the auxiliary space 12 ′, and each partition wall 4 is provided with a communication port 8. In this way, the auxiliary space 12 'communicates with each turbine building 1 by the communication port 8 and the transfer device (the trolley 9, the rail 10).

An auxiliary overhead crane 13 is provided above the auxiliary space 12 '.

According to the present embodiment, the following actions and effects are obtained in addition to the actions and effects of the first embodiment.

The disassembled parts in one turbine building 1 under maintenance can be transferred to the integrated auxiliary space 12 'by the truck 9 through the communication port 8 of the partition wall 4, and the auxiliary space 12' can also be transferred. The overhead crane 13 provided in 12 'allows the transfer parts to be temporarily placed on the floor surface of the auxiliary space 12'. As a result, the auxiliary space 12 'and the overhead crane 13 can be shared, and the workability can be improved by omitting the use of a jib crane, a monorail or the like.

FIG. 5 is a plan view showing a third embodiment of the present invention, which is an application example of claim 7.

The basic requirements of this embodiment are the same as those shown in the first embodiment, but in this example, the turbine building 1
A shutter 14 is installed at a communication port 8 provided in the partition wall 4 between them so that it can be opened and closed.

In addition to the same actions and effects as those of the first embodiment, this example has the following actions and effects.

That is, even when one turbine building 1 is under regular inspection and the other building 1 is in operation, it is possible to limit the coverage of the ventilation and air conditioning equipment to each building. Operation management becomes easy.

FIG. 6 is a vertical sectional view showing a fourth embodiment of the present invention, showing an application example of claim 6.

This example is basically the same as the second embodiment, except that the ceiling of the auxiliary space 12 'between the adjacent turbine buildings 1 is used as an auxiliary maintenance / inspection floor surface. A waste treatment facility 15 is installed below 12 '. According to this example, the space in the turbine building 1 can be effectively used, the buildings can be integrated, and the waste liquid transfer pipe from the turbine building 1 can be shortened.

FIG. 7 is a plan view of a fifth embodiment of the present invention, FIG. 8 is a longitudinal sectional view thereof, and this embodiment is an application example of the invention according to claim 8.

This drawing shows an example in which the site boundary 16 is close to the right side of the drawing. Generally, when the turbine building is close to the boundary of the site, the concrete thickness of the ceiling is increased as a measure against sky shine through the ceiling of the turbine building. However, according to this embodiment, the site boundary 16
The turbine building (on the left side in the drawing) on the opposite side to the sky shine countermeasure effect can be obtained by the distance from the site boundary 16 and the synergistic effect of the shielding effect by the wall of the adjacent turbine building.

Therefore, as a measure against sky shine, the range of increasing the concrete thickness of the ceiling is limited to the local shield ceiling / wall 17 shown in the figure, and it is possible to suppress the increase in the amount of buildings due to the measure against sky shine.

[0054]

According to the first means for solving the problems of the present invention, the floor area for the disposition / temporary placement of the equipment such as the turbine / generator at the time of the periodic inspection is rationalized by the centralized arrangement of the turbine buildings. By doing so, it is possible to easily reduce the size of the turbine building and secure the strength of the crane columns. Furthermore, even if a plurality of turbine buildings are integrated into one, structural problems can be solved.

According to the second means for solving problems, it is possible to further improve the maintenance and inspection work in the plural turbine buildings.

According to the third problem solving means, it is possible to reduce the amount of building shields.

[Brief description of the drawings]

FIG. 1 is a plan view of a turbine building according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a main part of the turbine building of the first embodiment.

FIG. 3 is a plan view of a turbine building according to a second embodiment of the present invention.

FIG. 4 is a sectional view of a main part of a turbine building of the second embodiment.

FIG. 5 is a plan view of a turbine building according to a third embodiment of the present invention.

FIG. 6 is a sectional view of a main part of a turbine building according to a fourth embodiment of the present invention.

FIG. 7 is a plan view of a turbine building according to a fifth embodiment of the present invention.

FIG. 8 is a sectional view of a main part of a turbine building according to the fifth embodiment.

[Explanation of symbols]

1 ... Turbine building, 2 ... Turbine, 3 ... Generator, 4 ... Partition wall, 5 ... Overhead crane, 6 ... Overhead crane operating area, 7 ... Turbine / generator axis line, 8 ... Communication port, 9 ... Bogie, 10 ... Rails, 11 ... Space for pulling out generators, 1
2, 12 '... Auxiliary space, 13 ... Auxiliary overhead crane,
14 ... Shutter, 15 ... Waste treatment facility, 16 ... Site boundary, 17 ... Local shield ceiling / wall.

Claims (8)

[Claims] 1. A power generation facility comprising a turbine for power generation, a power generator connected to the turbine, a dismantling and assembling overhead crane for maintenance and inspection of the turbine and the power generator installed in a turbine building. Turbine buildings (here, multiple turbine buildings include buildings with separate foundations, as well as those that are divided into rooms in the same building that forms a common foundation) are arranged adjacent to each other through a partition wall The partition wall is provided with a communication port between the turbine buildings, and is provided with a transfer device that travels between the plurality of turbine buildings through the communication port, and the transfer device includes each of the turbines within its traffic range. A power generation facility characterized in that it is set so that disassembled parts of the turbine and generator from the overhead crane of the building can be delivered. 2. The plurality of turbine buildings are arranged adjacent to each other with the turbines / generators of the turbine buildings parallel or substantially parallel to each other, and the overhead crane is installed so as to be able to travel in parallel with the turbine / generator axis. The connecting port provided on the partition wall is provided at a site other than a portion sandwiched by turbines / generators of adjacent turbine buildings, and the transfer device is adjacent to each other through the connecting port provided on the partition wall. The power generation facility according to claim 1, wherein the power generation facility is configured to come and go in a direction orthogonal to the axis of the turbine / generator shaft of the turbine building. 3. The power generation facility according to claim 2, wherein the generator extraction space is located at a position where the traffic course of the transfer device intersects with the axis of the turbine / generator. 4. An auxiliary space having an auxiliary floor for maintenance and inspection is provided between the plurality of turbine buildings,
The auxiliary space communicates with each turbine building through a communication port of the partition wall and the transfer device, and an overhead crane is provided side by side above the auxiliary space. The described power generation equipment. 5. The transfer device is constituted by a rail laid across the plurality of turbine buildings through a communication port of the partition wall, and a trolley that travels on the rail. The power generation facility according to item 1. 6. The power generation facility according to claim 4, wherein a waste treatment facility is installed in the auxiliary space, and the ceiling of the auxiliary space serves as an auxiliary maintenance / inspection floor surface. 7. The power generation equipment according to claim 1, wherein a communication port of the partition wall can be opened and closed. 8. A local shielding ceiling is installed on the site boundary side of the turbine / generator axis in the turbine building near the site boundary among the plurality of turbine buildings.
The power generation facility according to claim 7.