JPS6045727B2 - Package type power generation equipment - Google Patents

Description

[Detailed description of the invention] The present invention relates to packaged power generation equipment.

Traditionally, the construction of a thermal power plant starts with civil engineering work at the power plant construction site, then constructs the foundation for the turbine generator, constructs the turbine building, constructs the boiler steel frame, raises the boiler drum, and installs each piece of equipment. The main components were being installed in line with the progress of civil engineering and turbine building construction.

At sites with poor local installation conditions, these installation works require a long period of time and have a large impact on the power plant construction price. Furthermore, it is important to transport and bring in each component of the power plant in time for the installation period, which also increases transportation costs. Particularly for power plants built in underdeveloped areas, securing skilled engineers is also an issue.
In contrast, recently, power plant components such as boilers, turbines, generators, transformers, and their auxiliary equipment, as well as turbine buildings, have been installed on floatable platforms, manufactured and assembled in one huge package in a factory. This package will be transported by submersible barge to the power plant construction site using waterways such as sea or rivers, towed to a pre-prepared installation location, and water will be poured into the ballast tank installed on the ship's platform. By placing the ground in the ground, backfilling the surrounding area, and connecting it to electricity, water, fuel equipment, etc. outside the package, the on-site installation period can be drastically shortened, and power generation can be achieved with sufficient quality control within the factory. A packaged power generation plant system is being considered in which the equipment can be manufactured on an individual basis. The package type power generation equipment will be explained below using the drawings.

Figure 1 is a partially cutaway plan view, and Figure 2 is a straight line from Figure 1.
- Cross-sectional view (side view) along ■, Figure 3 is the straight line ■ in Figure 1
It is a sectional view (front view) along -■. In the figure, reference numeral 1 denotes a cradle, which has a ballast tank 1' and is manufactured in a dock in a factory like a normal ship.The cradle 1 and above are the boiler 2 and turbine 3, which are the components of the power plant. , generator 4, transformers 5, 6, 7, and other auxiliary equipment such as forced draft fan 8, chimney 9, condenser 10, circulating water pump 11, tearator 12, and compressor equipment. 13, water supply pump equipment 14; hydrogen gas generator 15; storage battery equipment 16; control room 17; crane and hoist equipment 18; It is configured as a huge package P. In addition, 20 in the figure is a turbine generator building for protecting these devices. Each of these devices constituting the power generation package is manufactured in a factory in a short period of time under strict control, and then assembled and mounted on the ship's platform 1. FIG. 4 is a diagram showing a state in which the power generation package P is transported on water. In the figure, P is the power generation package, and B is a submersible purge for mounting the power generation package P. Further, T is a towing vessel for towing this submersible purge B, and S is a waterway, such as the sea. In this way, the power generation package is towed close to the power plant construction site by the towing vessel T. In this way, packaged power generation plants produce the power generation plant equipment and the building that houses it all at the manufacturer's desired location.
It can be assembled and installed anywhere in the world. However, in order to configure a packaged power generation plant in a compact form, it is necessary to mount an oil-immersed transformer, which has conventionally been installed outdoors, inside the package.

Conventionally, oil-immersed transformers could not be installed inside buildings because it was difficult to solve various technical problems such as effective use of space, fire prevention, soundproofing, and effective maintenance and inspection.
The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a packaged power generation facility that can effectively perform maintenance and inspection work on an oil-immersed transformer, which is a component of the power generation facility. The purpose is to For that reason,
The installation surface of the transformer inside the package should be at approximately the same level as the external ground level, and it should be placed outside the ship's pedestal. ``A transformer draw-out space is provided, and when it becomes necessary to draw the transformer out of the package, the structure is such that the side wall can be opened and the transformer can be drawn out sequentially from the wall side to the outside of the package. The details of the embodiment shown in FIGS. 5 and 6 will be explained.

In the figure, 5 to 7 are transformers, 20 is a turbine generator building, 21 is a transformer room configured as a part of the turbine generator building, 22 is a turbine generator operating floor, and 23 is a transformer drawer. 24 is a drawer space provided outside the package for drawing out the transformer, 25 is the ground outside the package that is approximately on the same level as the transformer installation surface. Indicates level. Normally, during power plant operation, transformers are housed in a sealed transformer room to maximize the effectiveness of soundproofing and fire extinguishing equipment, but by sealing the transformer, maintenance and inspection work can be carried out outside. It is much more difficult than it used to be. Furthermore, when dismantling a transformer and performing maintenance and inspection of the core and windings inside the transformer, the overhead crane installed inside the turbine generator building cannot be used, and in some cases, maintenance and inspection are impossible. It could even turn out to be a bad thing. Transformers are essential equipment for operating power plants. Entire power plants should not be wasted because maintenance and inspection of transformers is impossible. Therefore, in the present invention, a part of the turbine building is provided with an openable wall, the transformer installation surface inside the package is made substantially the same as the ground level outside the package, and a space is provided outside the package to draw out the transformer. . For example, if it is necessary to pull out the transformer outside, open the opening wall 23 and remove the transformer 5.
Perform maintenance and inspection of the drawer in the external transformer drawer space in order. In order to draw out the transformer, it is possible to pull it out by rollers, and in order to draw out several transformers one after another, it is also possible to install something like a running rail on the transformer installation surface. As explained above, by using the present invention, even if the transformer is installed in the transformer room inside the package, the soundproofing effect and the fire extinguishing system's effectiveness can be maintained, and maintenance and inspection can be easily performed. There is an effect that can be achieved.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway cross-sectional view of the power generation package assembled and manufactured on the ship's platform, Figure 2 is a cross-sectional (side) view taken along the straight line ■-■ in Figure 1, and Figure 3 is the straight line ■ in Figure 1. 4 is a diagram for explaining an example of transportation of a power generation package, and FIGS. 5 and 6 are diagrams for explaining installation of a transformer. 1...Ship, 1''...Ballast tank, 2
...Boiler, 3...Turbine, 4...
... Generator, 5-7 ... Transformer, 20 ...
...Turbine generator building, 21...Transformer room,
22... Generator operating floor surface, 23... Openable side wall, 24... Transformer drawer space, 2
5...Package external ground level, P...
...Power generation package, B...Barge.

Claims (1)

[Claims] 1. In a floor-mounted package type power generation facility that can be transported by floating, in which equipment such as a turbine, generator, and transformer is mounted on a ship's platform, the transformer can be pulled out from a part of the wall of the turbine generator building that houses the equipment. In addition to providing an opening wall,
1. A packaged power generation facility characterized in that a space for drawing out a transformer is provided outside the package, and the transformer installation surface inside the package is substantially the same as the ground level outside the package.