JPS63120296A - Nuclear power facility - Google Patents

Abstract

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

Description

[Detailed Description of the Invention] [Object of the Invention] (Field of Industrial Application) The present invention applies to nuclear power generation located within a nuclear power plant. !
Regarding 9-bi.

(Prior Art) A conventional nuclear power generation facility will be explained with reference to FIGS. 5 and 6. Here, FIG. 5 shows a plan view of the nuclear power generation facility, and FIG. 6 shows a sectional view taken along the line A--A in FIG. 5. In Figures 5 and 6, a nuclear reactor building and a turbine building 2 that constitute a nuclear power generation facility are adjacent to each other with an inter-building gap 3 provided in consideration of construction workability and moisture resistance between the buildings. ing. A reactor containment vessel 4 is housed within the reactor building 1, and a reactor pressure vessel 5 is housed within this reactor containment vessel 4. Main steam generated from the reactor pressure vessel 5 is guided into the turbine building 2 via a main steam pipe 6. The main steam pipe 6 led into the turbine building 2 is formed inside the turbine building 2. Main steam pipe tunnel (hereinafter referred to as MS tunnel)7. The main steam pipe is connected to the turbine (not shown) through the rudder 8° and the main steam stop valve 9.
connected to.

(Problems to be Solved by the Invention) In the above configuration, the main steam piping is routed vertically using the gap between the buildings, and the main steam piping is raised as appropriate to the required level in the turbine building. Directional routing is carried out in the main steam pipe tunnel. For this reason, the main steam pipe tunnel requires a considerable amount of volume within the turbine building, and the main steam pipe tunnel obstructs the movement of materials within the building. In addition, this main steam pipe tunnel area has a high level of radioactivity, making it difficult to penetrate this area between the upper and lower sections.Therefore, there are restrictions on the routing of pipes, ducts, etc. between the upper and lower sections.

An object of the present invention is to obtain a nuclear power generation facility that can minimize the space of a main steam pipe tunnel inside a turbine building and expand the effective space inside the turbine building.

[Structure of the invention]

(Means for Solving the Problems) In order to achieve the second object, the present invention provides a reactor building that houses a reactor pressure vessel and a reactor building that houses a turbine and is adjacent to the reactor building. In a nuclear power generation facility consisting of a turbine building and a turbine building, the main steam piping that returns main steam from the reactor pressure vessel to the turbine is installed horizontally and vertically within a space formed between the reactor building and the turbine building. To provide a nuclear power generation facility characterized in that a main steam pipe header is installed on a main steam pipe arranged in a space formed between the reactor building and the turbine building.

(Function) In the nuclear power generation facility configured in this way, the main steam pipe exiting the reactor building is located within the gap between the buildings.
After being routed vertically and laterally, it is guided into the turbine building, and the main steam pipe header is installed in the gap between the buildings, reducing the MS tunnel area formed inside the turbine building. This allows the entire turbine building to be made more compact.

(Example) Hereinafter, an example of the present invention will be described with reference to FIG. 1 and FIG. 2. In addition, in FIGS. 1 and 2, the same parts as in FIG. 5 are given the same reference numerals, and the explanation of the structure of the parts will be omitted.

The main steam pipe 11 leaving the reactor building 1 is connected to the inter-building gap 1.
After being routed horizontally within the turbine building 2, it is routed vertically and guided into the turbine building 2. The main steam piping 11 in the inter-building gap 10 is designed to maintain the pressure balance between these four main steam pipings and the necessary volume between the reactor pressure vessel 5 and the main steam stop valve 9 at the steam turbine inlet. A steam pipe header 12 is provided. The main steam pipe 11 led into the turbine building 2 is connected to a turbine (not shown) through an MS tunnel 13 indicated by diagonal lines in the figure. Note that the main steam pipe 11 disposed within the inter-building gap 3 is supported by the reactor building 1 having a high seismic design class.

According to the above configuration, the range of the MS tunnel in the turbine building can be narrowed, so the effective space in the building can be expanded, and furthermore, the turbine building can be made more compact.

Furthermore, since the range of the MS tunnel, which requires conditions stricter than the seismic conditions of the turbine building, can be reduced, the seismic conditions of the turbine building can be relaxed compared to the past.

Next, a nuclear power generation facility according to a second embodiment of the present invention will be described with reference to FIGS. 3 and 4. Here, FIG. 3 shows a plan view of a nuclear power generation facility according to a second embodiment of the present invention,
FIG. 4 shows a sectional view taken along the line C--C in FIG. 3. In addition, the third
In FIGS. 1 and 4, the same parts as in FIGS. 1 and 2 are denoted by the same reference numerals, and the explanation of the structure of these parts will be omitted.

In FIGS. 3 and 4, the main steam pipe 15 is led from the reactor pressure vessel 5 to the outside of the reactor building 1 via the reactor containment vessel 4. After this main steam pipe 15 is routed diagonally upward in the inter-building gap 10,
The steam is guided through the main steam pipe header 16 into the MS tunnel 13 formed within the turbine building 2 .

With the above configuration, the nuclear power generation equipment according to the second embodiment of the present invention can obtain the same effects as the above-described first embodiment. Furthermore, since the main steam piping is routed diagonally within the building gap, the main steam piping can be shortened within the building gap.

〔Effect of the invention〕

According to the present invention, since the main steam piping is routed in the vertical and horizontal directions within the gap between the buildings, the channel area formed within the turbine building can be reduced, and the entire turbine building can be made more compact. can do.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a nuclear power generation facility according to a first embodiment of the present invention, FIG. 2 is a sectional view taken along the line B-B in FIG. 1, and FIG. 3 is a nuclear power generation facility according to a second embodiment of the present invention. Plan of power generation equipment, No. 4
The drawings are a cross-sectional view taken along the line C--X in FIG. 3, FIG. 5 is a plan view showing a conventional example of nuclear power generation equipment, and FIG. 6 is a cross-sectional view taken along the line A--A in FIG. 1...Reactor building N2...Turbine building 10...Gap between buildings 11.15...Main steam piping 12, 16
...Main steam pipe Heshida 13...Main steam pipe tunnel No. 1 Figure 2 Prisoner No. 3 Figure 4! ! l Figure 5 Figure 6

Claims (1)

[Claims] (1) In a nuclear power generation facility consisting of a reactor building that houses a reactor pressure vessel and a turbine building that houses a turbine and is located adjacent to the reactor building, main steam is transferred from the reactor pressure vessel to the turbine. The main steam piping that guides the reactor is routed horizontally and vertically within the space formed between the reactor building and the turbine building, and the main steam piping is routed in the space formed between the reactor building and the turbine building. Nuclear power generation equipment characterized by installing a main steam pipe header on steam piping.