JPS6125886B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides power plant component equipment such as boilers, turbines, generators, and transformers, and controls and controls for these equipment.
The present invention relates to a package-type power generation plant in which a central control room for monitoring is installed on a floating ship platform, and particularly to the structure of the central control room.

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 completes the construction of each function. The main components were being installed in line with the progress of civil engineering and turbine building construction.

Therefore, 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. 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 poses problems such as increased transportation costs. Particularly for power plants built in underdeveloped areas, securing skilled engineers has been a problem.

Therefore, in the construction of recent thermal power plants,
First, power plant components such as boilers, turbines, generators, transformers, and their auxiliary equipment, as well as the turbine building, are installed on a floatable platform and assembled into one huge package. Next, this package is transported by a submersible barge to the vicinity of the power plant construction site using waterways such as the sea and rivers, and is towed to a pre-prepared installation site. After that, remove the barge from the package cage,
Water is poured into the ballast tank installed on the ship's platform, and the area is backfilled and electricity, water, fuel equipment, etc. outside the package are installed. As a result, the so-called packaged power generation plant method has been adopted, which greatly shortens the on-site installation period and allows power generation equipment to be manufactured within the factory with sufficient quality control.

Figures 1 to 3 show an example of the package type power generation plant, in which Figure 1 is a partially cutaway plan view, Figure 2 is a side sectional view taken along line XX in Figure 1, FIG. 3 is a front sectional view taken along the straight line YY in FIG. 1.

In the figure, 1 is the ship's platform, and the ballast tank 1A
It is manufactured in a factory dock like a normal ship, and on this ship 1 are the components of the power plant: boiler 2, turbine 3, generator 4, transformers 5,
In addition to main equipment such as 6 and 7, these auxiliary equipment such as a forced draft fan 8, a chimney 9, a condenser 10, a circulating water pump 11, a dealerator 12, a water supply pump equipment 13, a hydrogen gas generator 14, and a storage battery equipment 15, control room 16, crane and hoist equipment 1
7. Most of the power plant components, such as the emergency power generation equipment 18, are installed, forming one huge package P. In addition, 19 in the figure is a turbine generator building for protecting these devices.

Each of these devices constituting the power generation package P is manufactured within a short period of time under strict control at a factory, and assembled and mounted on the boat platform 1.

FIG. 4 shows the state of the power generation package P being transported by sea. 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 vessel for towing this submersible barge B, and S is the sea.

In this way, if the package type power generation plant method is adopted, the power generation blunt equipment and the building that houses it can be manufactured and assembled all at once at a location of the manufacturer's choice, and then loaded onto barge B and transported by towing vessel T. By towing it to a power plant construction site, it can be installed anywhere in the world.

By the way, the central control room 16 in the package P includes a boiler 2, a turbine 3, and a generator 4.
A control panel with indicators, switches, etc. for control and monitoring functions necessary for operating the equipment is installed. Conventionally, the central control room equipped with this control panel was assembled and manufactured as shown in Figure 5. Was.

That is, the central control room 16 is located in the turbine generator building 1
9, while the indicator 20, switch 21,
The control panel 23 having the channel base 22 is assembled at another location, and after the central control room 16 is completed, the assembled control panel 23 is carried into the room and the channel base 22 is fixed to the floor.
A central control room with a control panel was completed.

However, in this method, when the control panel 23 is brought into the central control room 16, the size, shape, etc. of the control panel 23 are restricted by the lifting crane 18, the entrance of the room, etc. The control panel 23 must be manufactured in accordance with the construction process of the central control room 16. Since the control panel 23 is constructed separately from the central control room 16, various considerations must be taken when manufacturing the control panel 23 due to reasons such as the need for a strong sealed structure. It had the disadvantage of being complicated and expensive.

Moreover, the central control room 1 was manufactured in this way.
Since the control panel 23 has a closed structure, the air conditioning equipment in the central control room 16 cannot effectively cool the instruments in the panel, resulting in malfunctions.

SUMMARY OF THE INVENTION An object of the present invention is to provide a package-type power generation plant having a central control room with a structure in which the control panel can be constructed easily and inexpensively, and instruments within the panel can be effectively cooled.

In order to achieve this object, the present invention has a control panel integrated with one block of a room divided into a plurality of blocks, and utilizes the wall surface of this block to configure an in-panel instrument cooling ventilation duct. A feature is that each block is combined to form a central control room.

Hereinafter, the present invention will be explained with reference to the embodiments shown in the figures.

FIG. 6 is a configuration diagram of a central control room in a packaged power generation plant according to the present invention.

In the figure, 24A, 24B, and 24C are the ceiling wall, side wall, and floor surface of the room 24 that constitutes the central control room, respectively.
It is divided into two parts, and a control panel 26 is provided on one side b.

This control panel 26 is constructed by bending a single iron plate, and has instruments 27, switches 28, etc. attached to its wall, and its lower part is directly attached to the floor 24C with bolts 29 without a channel base.

A partition plate 30 is provided between the ceiling wall 24A and the floor surface 24C, and the bolts 3 are installed with the partition plate 30 as the back surface.
1, the control panel 26 is fixed.

Further, a decorative panel 32 is fixed between the front side of the control panel 26 and the ceiling wall 24A with bolts 33 and 34 to arrange the appearance of the control panel 26 when viewed from the front.

Furthermore, ventilation ducts 35 and 36 are formed using the space between the decorative board 32 and the partition plate 30 and between the partition plate 30 and the side wall 24B.

In addition, 37 is a terminal block used for wiring connection of the instruments in the panel.

The central control room in this embodiment is configured as described above, and is manufactured in a factory by being divided into parts a and b. After manufacturing, each part is transported into the turbine generator building 19, and as shown in the figure. When assembled, one central control room is formed in the packaged power plant.

Therefore, according to the above configuration, since the control panel and the control room are integrated, the configuration becomes simple, and the number of parts and man-hours can be significantly reduced. Problems during delivery due to shape and size are eliminated, and as a result of relaxing restrictions during production, a central control room equipped with a control panel can be produced at a very low cost and in a short period of time.

Furthermore, after the central control room is completed, a portion of the air conditioning air flowing into the room will flow inside the panel in the direction of the arrow in the figure, effectively cooling the interior of the panel and preventing malfunctions of the instruments.

In the above embodiment, an example is shown in which the central control room is divided into two parts, but it goes without saying that the central control room may be manufactured and assembled by dividing it into three or four parts depending on the case. .

As described above, according to the present invention, it is possible to obtain a package type power generation plant that is equipped with a control panel and a central control room that is integrated with the control panel and is economical in that the inside of the panel is effectively cooled. It will be done.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway plan view of a typical packaged power generation plant, Figure 2 is a cross-sectional view taken along line X-X in Figure 1, Figure 3 is a cross-sectional view taken along Y-Y in Figure 1, and Figure 4 is a cross-sectional view taken along line X-X in Figure 1. FIG. 5 is a configuration diagram of a conventional central control room provided in the package type power generation plant, and FIG. 6 is a configuration diagram of a central control room showing an embodiment of the present invention. be. 1...Ship, 1A...Ballast drawer, 2...
boiler, 3...turbine, 4...generator, 5,
6, 7... Transformer, 8... Forced draft fan, 9... Chimney, 10... Condenser, 11... Circulating water pump, 1
2...Dairator, 13...Water pump equipment, 14...Hydrogen gas generator, 15...Storage battery equipment, 16...Control room, 17...Crane and hoist equipment, 18...Emergency power generation equipment, 19 ……
Turbine generator building, 20...Indicator, 21,2
8...Switch, 22...Channel base, 2
3, 26...control panel, 24...room, 24A...ceiling wall, 24B...side wall, 24C...floor surface, 27...
...Measurement, 29, 31, 33, 34...Volt, 3
0... Partition plate, 32... Decorative board, 35, 36...
Ventilation duct, 37...Terminal block.

Claims (1)

[Claims] 1. A package type in which at least the boiler, turbine, generator, and transformer components that make up a power plant, and a central control room equipped with a control panel that controls and monitors these devices, are installed on a floatable platform. In a power generation plant, a room is divided into multiple blocks, and each of the divided blocks is
A package type power generation plant characterized in that a control panel is provided integrally with a block whose wall surface is used as a ventilation duct, and these blocks are combined to form the central control room.