JPS6045729B2 - Package type power generation equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ground-mounted or floating package type power generation equipment that can be transported by floating.

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 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 power plant construction prices. In addition, it is important to transport and bring in each element of the power plant's component equipment in accordance with the installation period, which increases transportation costs. In particular, securing skilled engineers is a problem for power plants built in underdeveloped areas. In contrast, recently power plant components such as boilers, turbines, generators, transformers, and their auxiliary equipment, as well as the turbine building, have been installed on floatable platforms, manufacturing and assembling them in one huge package in the factory. Then, this package is transported by a submersible barge to near the power plant construction site using waterways such as sea or rivers, towed to a pre-prepared installation location, and water is injected into the ballast tank installed on the above-mentioned ship berth. By doing so, the on-site installation period was drastically shortened by backfilling the surrounding area, and connecting to electricity, water, fuel equipment, etc. outside the package, and the quality control was thoroughly maintained within the factory. A packaged power generation plant system is being considered in which the power generation equipment is manufactured on an individual basis.
An example of a bed-mounted package type power generation facility will be explained below using the drawings.

Figure 1 is a partially cutaway plan view of the same, Figure 2 is a cross-sectional view (side view) taken along the line ■-Π in Figure 1, and Figure 3 is a cross-sectional view taken along the line ■1-■ in Figure 1. (front view). In the figure, 1 is a cradle, which has a ballast tank 1' and is manufactured in a dock in a factory like a normal ship, and above the cradle 1 are the boiler 2 and turbine 3, which are the components of the power plant. , generator 4,
Main equipment such as transformers 5, 6, 7, etc., and their auxiliary equipment such as forced draft fan 8, chimney 9, condenser 10, circulating water pump 11, dealerator 12, compressor equipment 13, and water supply pump equipment 1 unit and hydrogen gas generator 1
5. Most of the power plant components such as storage battery equipment 16, control room 17, crane and hoist equipment 18, and emergency power generation equipment 19 are installed and configured as one huge power generation package P. Reference numeral 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 barge on which the power generation package P is mounted. Further, T is a towing boat for towing this submersible barge B, and S is a waterway, such as the sea. The power generation package is towed close to the power plant construction site by such a towing vessel T. In this way, packaged power plants can be manufactured and assembled in bulk at the manufacturer's desired location, including the power generation plant equipment and the building that houses it, and can be installed anywhere in the world that can be transported by water. . It is also clear that the power generation package described above can be used as a mobile power station that is not fixedly installed on land, but is fixed floating on water and transmits the generated power to land for a predetermined period of time.

However, in order to configure packaged power generation equipment in a compact form, it is necessary to mount and install oil-immersed transformers such as the main transformer, starting transformer, and station transformer inside the package, which were conventionally installed outdoors. is necessary.

Conventionally, it was not possible to store and install oil-immersed transformers in a package due to technical issues such as effective space utilization, fire prevention, soundproofing, transport into buildings, and extraction of electrical power. ．． This is because it was difficult to solve. The present invention has been made in view of the above-mentioned problems, and it mounts and installs a group of oil-immersed transformers, which are a component of packaged power generation equipment, in a package, and aims to effectively utilize the space of the package while also preventing fire and While maintaining disaster prevention and soundproofing effects,
The purpose is to obtain a packaged power generation facility that enables safe operation.

Therefore, a transformer room to house all or part of the transformer group is installed in the turbine generator building that constitutes the packaged power generation equipment, in order to make effective use of space and to install fire extinguishing equipment and soundproofing equipment. In order to make the effect effective,
The transformer rooms are arranged alternately between the first package and the second package, and in the case of four or more packages, the even-numbered package and the even-numbered package, and the Two sets of transformer chambers are arranged adjacent to each other at a position, and at least one part of the partition wall between the two transformer chambers, for example, the lower part, is removed and combined, and the two sets of packages that are adjacent to each other are This structure constitutes a common set of transformer rooms.

The present invention will now be described with reference to one embodiment shown in FIGS. 5 and 6.

Figure 5 shows that the transformer rooms of the first power generation package and the second power generation package are arranged alternately, and the two sets of transformer rooms are arranged next to each other at a predetermined position for power plant construction. A plan view of two transformer chambers removed and combined to form one set of transformer chambers common to two power generation packages. Figure 6 is along the straight line ■-M in Figure 5. This is a cross-sectional view. In the figure, P1 is the first power generation package, P2 is the second power generation package, 5, 6, and 7 are the starting transformer, station transformer, and main transformer, respectively. is a common transformer room that has been combined by removing the partition between two transformer rooms.
In addition, the broken line inside the common transformer room 2 indicates the boundary between the first power generation package P1 and the second power generation package P2, and indicates the removed partition wall or its remaining part.Other symbols are As it has been described above, its explanation will be omitted. Normally, a group of transformers such as the main transformer for generator output, station transformer, starting transformer, etc., which are one of the components of the power generation package, are housed and installed in the package. In this case, the transformer group is housed in a closed transformer room to maximize the effectiveness of soundproofing and fire protection equipment.

However, this transformer room has an extremely limited space considering the effective space of the package itself.
Several transformer groups, fire protection equipment, etc. must be accommodated in this limited space, which is likely to cause problems not only in installation work but also in normal operation, maintenance, and inspection. Also, when installing multiple packages,
It is necessary to install this extremely limited transformer room in each package, which is extremely wasteful when considering the sharing of fire prevention equipment, and when considering the controllability of these fire prevention equipment, it is necessary to install the transformer room in each package. As a result, the complexity of the SO layer increases. Therefore, in the present invention, the transformer rooms are arranged alternately between the odd-numbered packages and the even-numbered packages, and after installation, at least part of the partition walls of adjacent transformer rooms are removed so that the common transformer This project aims to solve these technical problems. P1 is the first unit (
P2 is the power generation package for the second (even numbered machine). 21 is a transformer room provided in each package building.

The transformer rooms 21 are made alternately for odd-numbered machines and even-numbered machines when manufacturing each package, and, for example, fire protection equipment is provided only for odd-numbered machines or only for even-numbered machines. For other units that are not equipped with fire protection equipment, only the piping work necessary for extinguishing the fire will be carried out. The completed power generation packages are transported separately as described above, but are installed side by side at the predetermined location for power plant construction as shown in FIG. Therefore, after each power generation package is installed in a predetermined position, at least a part of the adjacent transformer rooms 21 is removed to form a shared transformer room 21'' and a shared fire prevention facility. Connect the piping, cables, etc. necessary for As explained above, according to the present invention, when storing an oil-immersed transformer, which is a component of packaged power generation equipment, in a building, it becomes possible to secure sufficient space. It can be stored in a package without taking up a lot of space, and space can be used effectively for maintenance and inspection. Fire prevention equipment can be shared without complicating the plant, and fire prevention and soundproofing effects are maintained. , which has the effect of making safe driving possible.

[Brief explanation of drawings]

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 transporting a power generation package, Figure 5 is a diagram for explaining the installation of a transformer room, and Figure 6 is a diagram for explaining the installation of a transformer room. It is a cross-sectional (front) view along the straight line ■-■. 1...Ship, 1''...Ballast tank, 2...Boiler, 3...Turbine, 4...
... Generator, 5-7 ... Transformer, 21...
...Transformer room, 2 "...Common transformer room, P...
...Power generation package, B...Barge.

Claims (1)

[Claims] 1. In a floor-mounted or floating package power generation facility that has a ballast tank and can be transported by floating, at least one transformer among the main transformer, starting transformer, and station transformer is housed in the turbine generator building. A transformer room is provided, and the transformer rooms are arranged alternately between odd-numbered packages and even-numbered packages, and the two sets of transformer rooms are placed next to each other at the predetermined location for power plant construction. At least a part of the partition between the transformer rooms is removed to form a transformer room common to the two sets of packages, and fire protection equipment is installed only in either the odd-numbered or even-numbered packages. Package type power generation equipment characterized by consisting of.