JPS61277776A - Control room - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a control room suitable for, for example, a nuclear power plant.
In particular, it relates to control rooms intended for system packaging of control room entrances, simplification of control panel configuration, improvement of space efficiency, and streamlining of construction. Although the present invention is primarily applicable to central control rooms of nuclear power plants, it can also be applied to locally located control rooms, and furthermore, to control rooms in thermal power plants and general industry. .

[Background of the invention]

The main control room building of a nuclear power plant is made of concrete to withstand electricity and prevent radioactivity. Previously, the central control room was operated by Japanese Patent Application Laid-open No. 56-74696 and Japanese Patent Laid-open No. 58-14.
As shown in 0686, a floor duct is installed on the floor of a concrete building, and cable wiring is laid inside the floor duct. As shown in FIG. 11, conventionally, the central control room IK houses a large number of box-shaped control panels 2 arranged in a row, and cables 5 are stored in a cable processing room 3 located around the control room as an accessory equipment. It is constructed by installing a large number of electrical components such as a large number of cable trays 4, and embedded electric conduits, cables, etc. in the foundations of each panel, tray supports, and floorboards.

As described above, the density of electrical components in the building is high, and the conventional situation has been that the number of installation steps during construction is large and the process takes a long time. For example, in a floor slab, several hundred pieces of embedded metal fittings for panel foundations are installed within the allowable dimensional accuracy, then channel bases for numerous panels are installed, the panels are brought in and installed, cables are laid, and the openings are then sealed. We have adopted a method of sequentially installing them in this way. In this way, conventional control rooms include many independent panels, and the work required from the foundation to transporting and installing the panels is enormous. There was a problem in that it was time consuming and significantly affected the ground construction process 1c.

Even in a control room that uses a conventional independent control panel, it was considered to create a graphical representation and system package to ease the construction process and workload on site.
It could not be said to be sufficient from the viewpoint of space efficiency and rigidity including panel fixation. ＠ [Objective of the Invention] Therefore, the purpose of the present invention is to improve the balance ρ in converting the control room circuit into a grid/system/four-cage structure. The control panel can be simplified due to the rational arrangement of parts.

We provide a control room that improves rigidity and earthquake resistance, improves the space efficiency of the control room, and makes the construction process more efficient.

[Summary of the invention]

It is necessary to install a large number of devices in the control room to convert, record, and display signals that are collected from field equipment via cables, and also to secure space for cable installation and to install electrical circuits and their connections. Ancillary equipment such as support structures will also need to be provided.

In the present invention, such a control room rotation system including the building is integrated into a system package, which is advantageous from the viewpoint of improving the efficiency and rationalization of system integration.
The scope of the package will be widened, and each building light will be installed as a single structure, reducing the number of man-hours required for continuous installation.

That is, the feature of the control room of the present invention is that a plurality of rows of columns are connected to the ceiling structure and floor structure of the building, and each row of columns is fixed to a conveying surface that forms a continuous surface, so that the control room between the adjacent panel surfaces is Spaces are alternately designated as access passageways and equipment areas;
In the equipment area, equipment for the control panel is exposed to the panel surface, and cables for the equipment and support racks for the cables are accommodated.

[Embodiments of the invention]

Figure 1 is a partially cutaway plan view showing the entire control room completed by combining package units.The overall size of the control room is 20rs wide x 50m deep x 3.5m high. An example is shown. When assembling the control room, the entire cage unit is hoisted up and assembled for installation, but due to limitations of the lifting equipment, in the example shown in Figure 1, the entire control room is placed along the line A- in the length direction. The entire control room is made up of three notescage units divided into three sections A and B-B: a room 6 in which an operator console 36 is placed, a room 7 in which a central monitoring panel 9 is placed, and an auxiliary panel room 8.

/The size of the cage unit is determined by the transport limit and the capacity of the lifting equipment. Therefore, within this limit, it is possible to select either factory assembly or on-site assembly performed by setting up an assembly factory on-site.

The EE cross section of the auxiliary panel chamber 8 in FIG. 1 is shown in FIG.
A perspective view taken along line -F, that is, a side perspective view of the central passage C, is shown in FIG. 4, and a cross section taken along line GG is shown in FIG.

As can be seen from these figures, first of all, regarding the control room building, the diagonally installed columns 12 are arranged so that two adjacent columns form a triangle (this increases rigidity and contributes to earthquake resistance). ) are arranged at the required pitch, and the upper part is fi! The lower part is welded to the channel base 14 embedded in the concrete slab f2B under the floor, and the channel base 14 is further provided with an anchor gel 17 as a foundation member and welded to the reinforcing bar 18 in the floor slab. It is. 26 is an unreinforced metal fitting, and 27 is a backing plate. The concrete floor slab is suspended from the control room's arm cage unit.

It may be pre-cast before installation, or it may be suspended or
Pouring may be performed after installation.

Several pillars 12 are lined up in the lateral direction of the control room (in the BB direction in FIG. 1). Each support column 12 is used as a component of the control room building structure. The triangular space formed by these columns 12 is designed to serve as a passageway for access by operators, etc., and the inverted trapezoidal space between them serves as an area for handling the control panel and its cables. ′, iron plates 11 having the function of the panel surface of the control panel are welded to the above-mentioned pillars 12 on both sides of the passage 10, and the installation positions of the control panel equipment 29 and 30 are set on these iron plates 11 in advance. Then, these devices 29 and 30 are attached to the steel plate 11. In this way, a continuous panel surface is formed on both sides of the access passage 10 (FIG. 7). It is fixed to both the structure and the unstructured structure at the top and bottom.Therefore, compared to the conventional box-shaped board that is fixed only at the bottom, it can easily meet the requirements of seismic class A. Placed equipment 29°30
Other parts that cooperate with the fixing bracket 1 attached to the support column 12
5 and placed in the area. In this way, triangular access passages 10 defined by two opposing panel surfaces 11 and areas 10' for handling control panel equipment and cables formed therebetween are provided at a predetermined pitch. As shown in the figure, the passages 10 are arranged on each side of the central passage C of the control room as a boundary.
and the above-mentioned area 10' are arranged. It is preferable that the end face of this area be covered with a decorative plate 37 by welding to give consideration to the aesthetic appearance. In addition, a manhole 31 (FIG. 8) and a door 33 (FIG. 4) are provided on the board surface 11 and the decorative board 37, respectively, in order to access the area on the back side of the board.

The space on the back side of the board surface 11, that is, the area 10'
The interior will be used as a cable processing room.

That is, as shown in FIGS. 6 and 9, a round steel material or steel pipe 20 is vertically erected within the area and welded to both the ceiling beam and the reinforcing steel in the floor dump, and in combination with this, a similar material 20 is welded horizontally.
1 is welded together to form a circuit support frame. This support frame can also be easily made into earthquake-resistant class A by selecting a material with sufficient size for strength and welding it to both the ceiling side and the floor slab side. Horizontal part 2 of this 2-dar-shaped support structure erected vertically
1 to fix the cable 32 and perform wiring (Fig. 10).

It is preferable to provide two sets of ladder-shaped support racks, one set for each panel side, and to ensure that the cables 32 are wired over the shortest distance. If it is necessary to install supports or parts in addition to the above-mentioned support racks within the area 10', install the supports 12 as appropriate.
This can be easily accommodated by welding supporting materials to, etc. Cables coming from the site can be taken in from the ceiling as shown in Figure 6, and from there they are lowered to the ladder-shaped support rack on the back of the panel to which they are connected, and from there they are wired and connected to each device. Ru. In order to secure enough space on the ceiling for this cable to take the cable.

Truss-shaped reinforcement members for the ceiling beams 22 are arranged at regular intervals.

The gap 23 of the reinforcement can be used as a route for the cable 32. By arranging the electric circuit on the back side of the panel along the panel surface 11, all the equipment installed on the panel surface 11 can be connected.
Wiring can be done easily.

For illumination, a fluorescent lamp 34 is placed on the front side of the board 110 together with a reflective shade at the top of the access passage 10 using a fixing fitting 25 to ensure illuminance between the surface of the board 11 and the access passage 10. Illumination on the back side of the board, that is, within the area 10', can be achieved by placing lighting equipment in appropriate positions using appropriate means, such as protruding supporting metal fittings from the pillars 12, etc., and ensuring illumination. be.

Furthermore, since a heating element such as the cable 32 is placed inside the area surrounded by the iron plate 11 and the decorative plate 37, it is necessary to install an air conditioning duct for ventilation.
The space for this air conditioning duct is the lighting fixture 3.
It is convenient to use the space 36 above 4.

The above control room unit is lifted and assembled in its entirety on-site as shown in Figure 2.

Due to the increase in the size of the Nonotsu Kei Enit, the panels housed in the unit are no longer arranged in rows and columns as in the past, but instead have one continuous panel surface, and the component parts are also consolidated. , the above-mentioned one-through one-sided panel system, which is arranged across the access passage, has become possible.

〔Effect of the invention〕

In the conventional control room, several independent box-shaped control panels of small units were arranged side by side in rows, but in the present invention, these are integrated into one continuous panel, which reduces the number of units. By reducing the amount, manufacturing and installation work and costs can be greatly reduced.

In addition, a cable support rack is installed in the area between the backs of the panels for cable management, which not only eliminates the need for a separate cable handling room as in the past, but also facilitates the wiring of signal reception between devices. . In addition, since the supports that fixed the panel surface were fixed to the ceiling and floor at the top and bottom, not only was there no need for any metal fittings embedded in the floor for fixing the panel, but the earthquake resistance was also significantly improved.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway plan view of a control room according to one embodiment of the present invention, FIG. 2 is a perspective view of the 171 cage unit of the same embodiment in a lifted state, and FIG. 3 is the same as that shown in FIG. 1. E-EIF
FIG. 4 is a side perspective view as seen from F-1, FIG. 5 is a sectional view taken along line GG, and FIG. Figure 7 is a partially cutaway perspective view showing the back side of the panel of the same embodiment, Figure 8 is a perspective view of the manhole, Figure 9 is a perspective view of the arrangement of the cable support rack, FIG. 1θ is a perspective view showing the arrangement of cables, and FIG. 11 is a perspective view showing a conventional control room. Explanation of symbols 1... Central control room, 2... Control panel, 3...
Cable processing room, 4... Cable tray, 5...
・Cable, 6-7t 8...Control room package unit, 10
...access passage, 11...board surface, 12...
Reinforcement material, 13...Bracket fitting, 14...Channel base, 15...Fixing metal fittings, 16...Preliminary space for equipment installation, 17...Anchor melt, 18...Reinforcement bar, 19...
- Hanging bracket mounting hole, 20... Vertical member of electrical circuit support frame, 21... Horizontal member of electrical circuit support frame, 22... Ceiling beam, 23... Cable passage,
24... Floor board, 25... Lighting fixture fixing fittings, 26... Floor reinforcing fittings, 27... Plate,
28... Floor concrete, 29.30... Control panel equipment, 31... Manhole, 32... Cable. 33... Access door, 34... Fluorescent light. 3G... Air conditioning duct space, 37... Decorative board. Party 1 Figure Demon 3 Figure 4 Demon Figure 5 Figure 6 Demon Figure 7 Tail Figure 8

Claims (1)

[Claims] A continuous panel surface is fixed to a plurality of rows of columns connected at the top and bottom to the ceiling structure and floor structure of the building, and the spaces between adjacent panels are alternately used as an access passage and an equipment area. None, a control room characterized in that the equipment area houses equipment for a control panel facing the panel, cables for the equipment, and support racks for the cables.