JPS5951641B2 - Package type power generation equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a packaged power generation facility capable of floating transportation or floating operation.

Traditionally, the construction of a Hikaka power plant started with civil engineering work at the power plant construction site, followed by construction of the foundation for the turbine generator, construction of the turbine building, construction of the boiler steel frame, raising the boiler drum, and construction of each equipment. Civil engineering, installation of main components, etc.
It was installed as construction progressed on the turbine building.

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. Furthermore, 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. Particularly for power plants built in underdeveloped areas, securing skilled engineers is also an issue.
In contrast, power plant components such as the Saishin boiler, turbine, generator, transformer, and their auxiliary equipment, as well as the turbine building, are installed on a floatable platform, and manufactured and assembled in one huge package within the factory. Then, this package will be transported by 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 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, Figure 2 is a sectional view (side view) taken along line 11-11 in Figure 1, and Figure 3 is a straight line 111-1 in Figure 1.
11 is a cross-sectional view (front view) along line 11. FIG. In the figure, reference numeral 1 denotes a ship's platform, which has a ballast tank 1' and is manufactured in a dock in a factory like a normal ship. Main equipment such as a generator 4, transformers 5, 6, 7, etc., and their auxiliary equipment such as a forced draft fan 8, a chimney 9, a condenser 10, a circulating water pump 11, a dealerator 12, and a compressor equipment 13
, water supply pump equipment 14, and hydrogen gas generator 15,
Most of the power plant components such as storage battery equipment 16, control room 17, crane and hoist equipment 18, emergency power generation equipment 19, etc. are mounted and configured as one huge 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. In this way, the power generation package is towed close to the power plant construction site by the towing vessel T. In this way, in a packaged power generation plant, the power generation plant equipment and the building housing it can be manufactured and assembled all at once at the manufacturer's desired location, and can be installed anywhere in the world. It is also clear that the power generation package described above can be used as a mobile power station that does not have to be fixedly installed on land, but is fixed while floating on water, and transmits the generated power to land for a predetermined period of time.

However, in order to configure the package-type power generation equipment in a compact form, it is necessary to mount the oil-immersed transformer, which has conventionally been installed outdoors, inside the package.

Conventionally, oil-immersed transformers could not be housed and installed inside buildings due to technical issues such as effective space utilization, fire prevention, soundproofing, and eliminating any repercussions in the event of a transformer accident. This is because it was difficult to resolve. In view of the above-mentioned problems, the present invention mounts an oil-immersed transformer, which is a component of the package-type power generation equipment, inside the package, thereby making effective use of space, and maintaining fire prevention and soundproofing effects. In the unlikely event that an accident inside the transformer causes oil gushing, other The objective is to obtain a package type power generation facility that completely eliminates the spread of accidents to equipment.

In order to achieve the above object, the present invention provides a transformer room for storing an oil-immersed transformer, and installs the transformer within the transformer room, and also prepares for oil injection due to an accident inside the transformer. ,
The transformer oil injection pipe will be extended and connected to the dedicated ballast tank room at the bottom of the package ship, and the structure will be designed to prevent oil from leaking to other areas during oil injection.

The present invention will be described below with reference to four embodiments shown in FIGS. 5 and 6.

In the figure, 5 to 7 are transformers, 20 is a generator building,
21 is a transformer room that is part of the generator building, 2
2 is a transformer oil injection pipe extended to a dedicated ballast tank room, and 23 is a ballast tank room provided exclusively for oil injection. Normally, when a transformer, which is a component of packaged power generation equipment, is to be housed and installed in a packaged building, the transformer must be placed inside a sealed transformer room in order to maximize the effectiveness of soundproofing and fire prevention equipment. However, because it is sealed tightly, maintenance and inspection work is much more difficult than when it is installed outdoors.

Furthermore, since a complete set of power generation equipment is installed in the limited space of a package, the layout becomes complicated, and depending on the layout, the transformer itself and other equipment may be housed in the same transformer room. This is unavoidable.If an accident occurs inside the transformer under such conditions, there is a drawback that oil jets cannot prevent the accident from spreading, and even if the accident is to be minimized, the space is limited. The maintenance and inspections carried out at the factory were ineffective, resulting in considerable losses until the accident was rectified.Therefore, the present invention is designed to house all the transformers 5 to 7 or a part of them in the package. A transformer room 21 is provided, and the transformer is installed in this room.In addition, in case of an accident inside the transformer, the transformer oil injection pipe 22 is extended and connected to the dedicated ballast tank room 23 at the bottom of the package ship, and the transformer is installed in the transformer room 21. In some cases, the structure is designed to prevent oil from leaking to other areas.
With this kind of structure, the spread to other equipment can be minimized, and the only thing that can be done to recover from an accident is clearing the transformer accident, and there is no need for maintenance or inspection of other equipment. As explained above, according to the present invention, even if the oil-immersed transformer, which is a component of the package-type power generation equipment, is installed in the package, space can be used effectively, and fire prevention and soundproofing effects can be maintained. This has the effect of completely eliminating any spillover of the accident to other equipment, even if an accident inside the transformer causes oil gushing.

[Brief explanation of drawings]

Figure 1 is a partially cut-out 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 line 11-11 in Figure 1, and Figure 3 is the straight line 111 in Figure 1. A cross-sectional (front) view taken along line -111, FIG. 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 ... Generator building, 21
...Transformer room, 22...Transformer oil sprayer, 23...
Ballast tank room, P...power generation package, B...
barge.

Claims (1)

[Claims] 1. In packaged power generation equipment that has a ballast tank and is equipped with at least a turbine and a generator on a floating platform and is capable of floating transportation and floating operation, the main transformer, starting transformer, and station transformer are installed in the generator building. A packaged power generation facility comprising: a transformer room for housing at least one transformer; an oil injection port of the transformer is extended to the ballast tank to prevent oil injection from flowing out due to a transformer accident; .