JPH07191186A - Building with facility for marine water line of atomic power station - Google Patents

Abstract

PURPOSE:To enhance the easiness in performing the regular inspection in winrter period by arranging apparatus and valves requiring inspection for the marine water line so that they are concentrated, and consolidating a circulative pump building and a ball collector pit into a single unit. CONSTITUTION:An upper house is built on a building for a circulating water pump (CWP/B) and a pit for a ball collector (BC/P) so that an integrated building is constructed. A floor is furnished in the upper part of BC/P so as to serve as a lay-down area for CWP/B. A hutch for carrying out the ball collector is provided in the floor of the upper part of BC/P. A winch facility should serve commonly for the maintenance of equipment both in CWP/B and BC/P. An opening is provided in the wall situated between CWP/C and BC/P, and the abovementioned integrated buildings 5 and 6 for the adjacent atomic power plant should have the same upper house. Yard facilities are taken in to the connection area of the two integrated buildings 5, 6, and the heat emitted by the motor of the circulating water pump 12 is used as the source for warming the air.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building having a seawater system of a nuclear power plant, and more particularly to a circulating water pump building (hereinafter referred to as C
It is called WP / B. ) And a ball collector pit (BC /
It is called P. ) Regarding the placement.

[0002]

2. Description of the Related Art As a conventional technique related to the layout of a seawater facility storage building of a nuclear power plant, there is a document 8 attached to a Kashiwazaki-Kariwa nuclear power plant reactor installation license application.

According to this, as the arrangement of the turbine building on the sea side, a seawater heat exchanger building (hereinafter referred to as Hx / B) and a CW.
The P / Bs are adjacent to each other, and the BC / Ps are arranged in the area on the outer side close to the water outlet.

Therefore, the length of the water discharge channel can be shortened, but because CWP / B and BC / P are independent, it is impossible to achieve and improve the matters shown in the claims of the present invention in terms of layout. is there.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to integrate seawater facilities of a nuclear power plant so as to improve the qualitative detectability, especially in winter, and to rationalize the facilities.

[0006]

[Means for Solving the Problems] The first means of the present invention is to circulate a pump for circulating water in a nuclear power plant in order to consolidate equipment and valves in a seawater system that require inspection and to improve maintainability. (Hereinafter referred to as CWP / B) and a ball collector pit (hereinafter referred to as BC / P) are integrally installed, and the second means is the first means, which is caused by snow or strong wind in winter. In order to prevent deterioration of maintainability in winter, it is characterized by having a shed,
The third means is that, in the first means, in the integrated building integrated by the first means, the maintenance of the equipment in the CWP / B and BC / P can be disassembled and inspected by one lifting equipment. The fourth means is characterized in that, in the integrated building integrated by the first means, a floor is provided above the BC / P to make a CWP laydown area, and the fifth means is the fourth means. In the integrated building by, by installing a hatch for carrying out the ball collector on the floor above the BC / P, the maintenance of the equipment inside the CWP / B and BC / P can be disassembled and inspected by one lifting equipment. The sixth means is characterized in that the heat radiation of the CWP motor is utilized as a heat source of warm air in the BC / P area in the integrated building by the second means, and the seventh means is constituted by the second means. In the integrated building, the BC / P floor can be utilized as a heat source for warm air of the sixth means by making the floor grating, and the eighth means is the CWP area and the BC in the integrated building by the sixth means. The warming effect is enhanced by providing an opening in the wall between the / P areas, and the ninth means is that, in the integrated building by the second means, the integrated building and the integrated building of the adjacent unit are the same roof. By doing so, it is possible to expand the range of equipment sharing shown in the third means, and
The means is characterized in that, in the integrated building according to the ninth means, yard equipment is taken into a connection area with an adjacent unit and heat radiation of the CWP motor is utilized as a heat source of warm air in winter, and the eleventh means is according to the ninth means. In the integrated building, the heating space can be rationalized by collectively heating the space inside the building, and the twelfth means enables the integration of the communication trench with the main building in the first means. The thirteenth means is characterized in that the fire extinguishing equipment can be rationalized by concentrating the equipment in the integrated building by the second means.

As described above, according to the means of the present invention, in order to achieve the above object, the CWP / B and the BC / P are made to be adjacent to each other and further integrated into a single building to secure a laydown space of the CWP in the building. This makes it possible to share equipment.

[0008] Furthermore, by making the building adjacent to the adjacent unit, it is possible to store other equipment, thereby expanding the range of common use, reducing the amount of material, improving the landscape and rationalizing the equipment. Become.

When integrating the buildings, it is possible to use the construction method shown in FIG. FIG. 5 schematically shows the layout of the main buildings in the present invention, and shows cross-sectional views at each stage of construction progress. During the period (a) when the main building is frequently accessed, the access space 7 is used to access the main building from the sea side.

On the contrary, during the period (c) when there is little access to the main building, the access space 8 can be used to access the main building.

[0011]

In the present invention, by integrating CWP / B and BC / P, two CWP laydown spaces can be secured inside the building, so that the working environment and working process are improved especially in winter. You can

Further, since the facilities are provided in the same building, it is possible to reduce the amount of connecting pipes and the installation road.

Furthermore, by constructing a building that is connected to adjacent units, it is possible to expand the range of common use of facilities, and by incorporating other facilities into the connection area with adjacent units, rationalization of heating facilities, It is possible to reduce the amount of connecting piping cables, improve patrol performance by centralized management, centralize communication trenches with the main building, improve the yard landscape, and rationalize fire extinguishing equipment.

[0014]

EXAMPLE FIG. 2 is a plan view of the ground floor of the integrated building of the present invention, and FIG. 3 is a sectional view.

FIG. 4 is a plan view of the ground floor of the integrated building when connected to the building of the adjacent unit.

In FIG. 2, a laydown space for two CWPs is secured inside the building, and the movable range of the overhead crane 1
Considering 0, the equipment can be easily transported.

It can be seen from FIG. 3 that the building has an integrated roof. Therefore, the work environment in winter has been improved.

That is, the ventilation and air-conditioning system is shared with the above-mentioned crane so that the equipment is shared and the workability is further improved.

As shown in FIG. 4, the common area 11 can accommodate other equipment, which can improve the regular inspection performance, reduce the amount of piping and cables, and rationalize the equipment.

That is, it is possible to rationalize heating equipment by collective heating, reduce communication piping and cables, improve patrol performance by centralized management, centralize communication trenches in the main building, improve yard landscape, and rationalize fire extinguishing equipment by centralized arrangement. It will be possible.

[0021]

According to the present invention, CWP / B and BC / P
As the distance between mutual buildings is reduced, it is possible to reduce the amount of connecting pipes and cables as compared with the case where the two are adjacent to each other.

Further, it is possible to integrate CWP / B and BC / P, and it is possible to further reduce the number of roads to be attached to the building. Furthermore, it is possible to secure a laydown space (for two cars) in the building during CWP separation inspection, which can improve workability and work process, and it is possible to store equipment in a common area. Becomes As a result, rationalization of heating equipment, reduction of communication pipes and cables, improvement of patrol performance by centralized management, integration of main building communication trenches, improvement of yard landscape, rationalization of fire extinguishing equipment by centralized arrangement.

[Brief description of drawings]

FIG. 1 is a plan layout view of a main building according to an embodiment of the present invention.

FIG. 2 is a floor plan of the integrated building according to the present invention.

FIG. 3 is a sectional view taken along line BB of FIG.

FIG. 4 is a ground floor plan view of a connection building according to an embodiment of the present invention.

FIG. 5 is a cross-sectional view showing the AA cross section of the integrated building / main building construction of FIG. 1 in a time series of the construction period by (a), (b), and (c).

[Explanation of symbols]

1 ... Turbine building, 2 ... Reactor building, 3 ... Rad building, 4
... Control building, 5 ... Integrated building of the present invention, 6 ... Adjacent building integrated building, 7, 8 ... Access space, 9 ... Shed, 10 ... Ceiling crane movable range, 11 ... Common area,
12 ... Circulating water pump, 13 ... Circulating water pipe (intake side), 1
4 Circulating water piping (water discharge side).

Claims (13)

[Claims] 1. A nuclear power plant characterized by consolidating equipment and valves in a seawater system that require inspection, and installing a circulating water pump building and a ball collector pit integrally. Building with seawater system facilities. 2. The seawater system facility of a nuclear power plant according to claim 1, wherein a shed is provided in the circulating water pump area and the ball collector pit area due to snow or strong wind in winter to form an integrated building. With a building. 3. The seawater system facility of a nuclear power plant according to claim 1, comprising a lifting facility commonly used for maintenance of facilities in the circulating water pump building and the ball collector pit. Building. 4. A building having a seawater system facility of a nuclear power plant according to claim 1, wherein a floor is provided above the ball collector pit and the floor serves as a laydown area of a circulating water pump. 5. The ball catcher carry-out hatch according to claim 4, which is provided on the floor above the ball catcher pit, and is commonly used for maintenance of the circulating water pump building and the equipment in the ball catcher pit. A building with seawater facilities of a nuclear power plant, which is equipped with heavy facilities. 6. A building having a seawater system facility for a nuclear power plant according to claim 2, wherein the heat released from the motor of the circulating water pump is used as a heat source for warm air in the ball collector pit area. 7. An integrated building according to claim 2, wherein the ball collector floor for heat radiation is grating, and a building having a seawater system facility of a nuclear power plant. 8. A building having a seawater system facility of a nuclear power plant according to claim 6, wherein an opening is provided on a wall between the circulating water pump area and the ball collector pit area. 9. The seawater system facility of a nuclear power plant according to claim 2, wherein the integrated building of one nuclear power plant and the integrated building of the other nuclear power plant adjacent to it are the same building. Building to have. 10. The seawater of a nuclear power plant according to claim 9, wherein yard equipment is incorporated into the connection area of the integrated buildings of both nuclear power plants, and the heat radiation of the motor of the circulating water pump is used as a heat source of warm air. Building with system equipment. 11. A building having a seawater system facility of a nuclear power plant according to claim 9, comprising a heating facility for collectively heating the interior space of the integrated building. 12. A building having a seawater system facility of a nuclear power plant according to claim 1, wherein the communication trench with the main building is integrated. 13. A building having a seawater system facility of a nuclear power plant according to claim 2, wherein the facilities are concentrated in an integrated building.