JPS6357586B2 - - Google Patents

Description

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

Traditionally, when constructing a thermal power plant, for example, it starts with civil engineering work at the power plant construction site, then constructs the foundation for the turbine generator, constructs the turbine generator building, constructs the boiler steel frame, raises the drum of the boiler, and so on. The main components were being installed in line with the progress of civil engineering and turbine generator building construction. At sites with poor local installation conditions, these installation works require a long period of time and have a significant impact on the construction price of power generation equipment. For this reason, it has become necessary to transport and bring in each component of power generation equipment in accordance with the installation period from the viewpoint of shortening construction period and economic gain. Furthermore, securing skilled engineers is also a problem for power plants built in developing countries. In contrast, the components required for power generation equipment such as the most powerful boiler, turbine, generator, transformer, and their auxiliary equipment, as well as the turbine generator building, are installed on a floating pontoon, creating one huge packaged power generation system. The equipment is manufactured and assembled in the factory, and the packaged power generation equipment is transported offshore to near the power plant construction site using a submersible barge.
It is transported in one piece using a waterway such as a river, towed to a pre-prepared installation location, placed on the ground by injecting water into the ballast tank installed in the pontoon, and after backfilling the surrounding area, the packaged external power generation equipment is installed. Packaged power generation equipment is being considered that can be connected to electricity, water, fuel equipment, etc., thereby significantly shortening the on-site installation period and allowing the power generation equipment to be manufactured in-house with sufficient quality control.

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 the straight line in Figure 1, and Figure 3 is a cross-sectional view (side view) taken along the straight line in Figure 1.
The figure is a cross-sectional view (front view) taken along the straight line - in Figure 1.
It is. In the figure, 1 is a pontoon, which has a ballast tank 1'. The pontoon 1 is manufactured in a dock in a factory like a normal ship, and on this pontoon 1, the components of the power generation equipment such as a boiler 2, a turbine 3, a generator 4, transformers 5, 6,
In addition to the main equipment such as 7, these auxiliary equipment such as forced draft fan 8, chimney 9, condenser 10, circulating water pump 11, dealerator 12, compressor equipment 13, water supply pump equipment 14, and hydrogen gas generator 15, storage battery equipment 16, control room 17, crane and hoist equipment 18, emergency power generation equipment 1
Most of the components of power generation equipment such as 9 are installed and configured as one huge package type power generation equipment P.
In addition, 20 in the figure is a turbine generator building for protecting these devices. Each of these devices and the turbine power generation equipment building 20 that constitute the power generation package type power generation equipment P are manufactured under strict control in a factory, and assembled and mounted on the pontoon 1.
FIG. 4 is a diagram showing the state of transportation on water of the package type power generation equipment P. In the figure, P is the package type power generation equipment, and B is the package type power generation equipment P.
It is a submersible barge for carrying. Also T
is a towing vessel for towing this submersible barge B, and S is a waterway, such as the sea. In this way, the packaged power generation facility P is towed by the towing boat T to a location close to the power generation facility construction site. In this way, package-type power generation equipment allows the equipment and the turbine generator building that houses it to be manufactured and assembled all at once at the manufacturer's desired location, and can be installed anywhere in the world as long as it can be transported by water. can.

Moreover, the package type power generating equipment described above can be used as a mobile power generating equipment that is not fixedly installed on land, but is fixed while floating on water, and transmits the generated power to land for a predetermined period of time.

By the way, when this type of equipment is to be transported in a compact form by floating, it is important to manage disaster prevention and soundproofing. In particular, in transformers that handle oil, it has become necessary to adequately manage the oil and to manage noise generated during operation.

Conventionally, the transformers that adjust the voltage and current of the electrical output from the generator and send it out to the off-grid transmission line include a main transformer, a starting transformer, a designated transformer, etc. The heat generated during operation is cooled by oil. Also, when these are in operation, the noise is high. Conventionally, transformers that suffer from such problems have been installed outside the turbine generator building, and management measures have been taken to prevent disasters and sound.

However, when power generation equipment is packaged into a compact form and transported by floating, there is not enough space for installation as in the past, and disaster prevention and soundproofing tend to be inadequate. Therefore, special measures are required to minimize such management. However, considering the function of the transformer, it is not possible to change it to a special structure, and there is a strong desire for some kind of disaster prevention and soundproofing measures while maintaining its original function.

In view of the above-mentioned special circumstances, the present invention has been developed so that disaster prevention and soundproofing of the transformer can be easily performed when the transformer is incorporated into power generation equipment and configured in a compact form.
Moreover, it is an object of the present invention to provide a method for manufacturing a package-type power generation equipment that can be easily incorporated into power generation equipment.

In order to achieve the above object, the present invention provides a method for manufacturing a package-type power generation facility in which a turbine, a generator, a transformer, etc. are mounted on a pontoon having a ballast tank and can be transported by floating. A transformer is mounted on a foundation bed, and then the foundation bed is surrounded by side walls and a ceiling wall to form a compartment, and this compartment is mounted directly on a pontoon together with the above-mentioned turbine, generator, etc. It is built into the turbine generator building.

An embodiment of the present invention will be described below with reference to FIGS. 5 and 6. In FIG. 5 and FIG. 6, a transformer foundation steel frame 21 for mounting each integrally manufactured transformer is placed on a prefabricated foundation platform 22.
is installed. A starting transformer 7 , an in-station transformer 6 , and a main transformer 5 are mounted on the transformer foundation steel frame 21 . Oil coolers 24 are provided on the sides of these transformers 7, 6, and 5, and a conservator 23, which is one of the attached equipment, is provided above them. In addition, the starting transformer 7 and the main transformer 5 include
Elephant bushing 25 through duct 25
A pedestal 25 is provided to support a. Although three transformers are used in this embodiment, the station transformer 6 may also serve as the starting transformer 7.

The foundation platform 22 on which such a transformer is placed is
A compartment T _SP is formed. This compartment T _SP is covered with a ceiling wall 27 and side walls 28 in order to achieve disaster prevention and soundproofing, and to make it compact and easy to transport and install. Further, on the ceiling wall 27, a traveling rail 29 for a crane or hoist is provided above the oil cooler 24 and the duct 25 for disassembling and inspecting each transformer.

In this way, each transformer housed in one compartment T _SP is assembled into the turbine generator building 20 as it is and transported floating.

As explained above, according to the present invention, when a transformer is mounted on a hontoon together with a turbine, generator, etc., each transformer is put together in a compartment, and installation is limited. It can be placed in a relatively comfortable location, and since it is built into the turbine generator building, the power generation equipment as a whole can be packaged, making it convenient for floating transportation. In addition, since each transformer is housed in a compartment, there is no need to worry about fire or noise management even if the transformer is installed in the turbine generator building, and operation can continue safely.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway cross-sectional view of the packaged power generation equipment assembled and manufactured on the Hontoon, Figure 2 is a cross-sectional (side) view taken along the 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 packaged power generation equipment, and FIGS. 5 and 6 show the arrangement of transformers housed in compartments according to the present invention. In the figure, the fifth
The figure is a plan view, and FIG. 6 is a side view. 1...Pontoon, 1'...Ballast tank,
2... Boiler, 3... Turbine, 4... Generator, 5... Main transformer, 6... Station transformer, 7...
Starting transformer, 20... Turbine generator building, 27
...Ceiling wall, 28...Side wall, P...Package type power generation equipment, B...Barge, T _SP ...Division room.

Claims (1)

[Claims] 1. A method for manufacturing package-type power generation equipment in which a turbine, generator, transformer, etc. are mounted on a pontoon having a ballast tank and can be transported by floating, in which the transformer is mounted on a prefabricated foundation platform. death,
The foundation bed is then surrounded by side walls and a ceiling wall to form a compartment, and this compartment is incorporated into the turbine generator building by directly mounting it on the pontoon together with the turbine, generator, etc. A method for manufacturing packaged power generation equipment.