JPH073165B2 - Turbine building - Google Patents

Description

The present invention relates to a turbine building attached to a power plant such as a nuclear power plant, and more particularly, to reduce the volume of the turbine building. Related to the improved turbine building.

(Prior Art) Generally, a turbine building 1 attached to a nuclear power plant
In FIG. 3, a steam turbine 3 having a high pressure turbine 3a and a low pressure turbine 3b and a generator 4 are arranged on an operation floor 2 of a turbine building 1 as shown in FIGS. An operation chamber 7 in which an overhead crane 5 is installed is formed above the operation floor 2. An air conditioner room 8 is arranged on the upper and lower sides of the operation chamber 7, and the overhead crane 5 has a large span structure in the upper air conditioner room 8 to reinforce the structure in the lateral direction. Reinforced concrete reinforcement walls 9 and steel braces 10 are installed. Further, a condenser 6 is arranged below the turbine 3. In the above-mentioned configuration, the main steam turbine stop valve, the bypass valve, the condensate pump (not shown), and other main turbine system equipment arranged below the operation floor 2 are regularly maintained almost once a year.・ By the overhead crane 5 which was disassembled for inspection and installed on the upper part of the turbine building 1,
It is laid down on the operation floor 2. The height of the turbine building 1 is an operation chamber in which the condenser 6, the steam turbine 3, and the storage equipment under the operation floor 2 are disassembled and the height required to lay down on the operation floor 2 by the overhead crane 5 is secured. Determined by 7. On the other hand, the planar shape of the turbine building 1 is mainly determined by the equipment layout below the operation floor 2 and the area required to lay down disassembled parts of main equipment on the operation floor 2.

(Problems to be Solved by the Invention) Although there is a current demand for cost reduction in a nuclear power plant, it is a major contribution to this cost reduction.
One of them is the reduction of building volume. As a method for reducing the building volume, there is a reduction in the building height or a reduction in the planar shape, but the height of the turbine building 1 is determined by the height of the main equipment and the operation chamber 7 as described above, It cannot be reduced by improving the device. On the other hand, regarding the planar shape, the operation floor 2
The lower reduction is accompanied by the improvement of the equipment layout, but no means has been proposed so far that the operation floor 2 requiring a laydown area can follow the reduction. In addition, since the operation chamber 7 has a large span structure due to the installation of the overhead crane 5, the reinforced concrete reinforcing wall 9 and the steel brace 10 are installed in the air conditioner room 8 on the side thereof to reinforce the structure in the lateral direction. This is the operation floor 2
Making it more difficult to reduce.

It is an object of the present invention to reduce the turbine building volume, and when the planar shape under the operation floor is reduced by improving the equipment layout, it is possible to reduce the operation floor while ensuring the required laydown area and structural reinforcement of the operation chamber. To provide a building.

[Structure of Invention]

(Means for Solving the Problems) In order to achieve the above object, in the present invention, the overhead crane is arranged in a turbine building provided with an overhead crane above an operation floor where a steam turbine and a generator are installed. An air conditioner room is provided on the side of the operation chamber, and an operation floor of small parts of turbine system equipment in which a crane is installed is arranged below the air conditioner room, and a turbine building is provided.

(Operation) During regular maintenance and inspection, the steam turbine / generator installed on the operation floor and the main turbine system equipment stored under the operation floor are disassembled and laid down on the operation floor. On the operation floor arranged below the air conditioner room, the crane displaces the small and small parts of the disassembled parts for laydown. Therefore, the laydown area can be secured as in the conventional case and the building volume can be reduced.

(Embodiment) A turbine building according to an embodiment of the present invention will be described below with reference to FIGS. 1 and 2. In FIGS. 1 and 2, the same parts as those in FIGS. 3 and 4 are designated by the same reference numerals, and the description of the structure of those parts will be omitted.

On the operation floor 12 of the turbine building 11, large equipment such as a steam turbine 3 having a high-pressure turbine 3a and a low-pressure turbine 3b and a generator 4 are arranged. At the lower part of the operation floor 12, main steam system / bypass valve, main turbine system equipment (not shown) such as a condensate pump, and the condenser 6 are arranged. An air conditioner room 14 is installed in a part of the upper space of the operation chamber 13. Steel braces 15 and reinforced concrete reinforcement walls 16 are provided inside the air conditioner room 14 and on the side of the operation chamber 13.
Is installed as a structural reinforcement of the operation chamber 13 having a large span structure by the overhead crane 5.

Steam turbine 3, which is installed on the operation floor 12,
A part of the main turbine system equipment installed under the generator 4 and the operation floor 12 is disassembled for periodic maintenance and inspection, and the space of the operation chamber 13 is used by the overhead crane 5 to operate on the operation floor 2. Lay down to. In addition, small parts can be laid down by a crane 18 on the operation floor 17 disposed below the air conditioner room 14.

As described above, according to the turbine building 11 of the present invention, it is possible to reduce the building volume above the operation floor 12 while ensuring the same laydown area and reinforcement of the upper structure as the conventional one.

In the above description, even if the air conditioner room is read as an equipment room and the steel brace and the reinforced concrete reinforcing wall are read as structural reinforcing materials, the present invention exerts the same effect.

〔The invention's effect〕

As described above, in the turbine building according to the present invention, the air conditioner room is installed in the upper space of the conventional operation chamber, and the crane is added below the air conditioner room. The building volume can be reduced while ensuring the reinforcement. Furthermore, since the building can be reduced in size, the amount of pipes, cables, air conditioning ducts, and the like can be reduced.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of a turbine building according to the present invention, FIG. 2 is a sectional view taken along the line BB of FIG. 1, and FIG. 3 is a vertical sectional view showing a conventional example of a turbine building. 4 is a sectional view taken along the line AA of FIG. 3 …… Turbine, 4 …… Generator 5 …… Overhead crane, 11 …… Turbine building 12 …… Operation floor 13 …… Operation chamber 14 …… Air conditioner room, 17 …… Operation floor 18 …… Crane

Claims (1)

[Claims] 1. In a turbine building having an overhead crane above the operation floor where a steam turbine and a generator are installed, an air conditioner room is provided on the side of an operation chamber where the overhead crane is installed. Turbine building characterized by arranging an operation floor of small parts of turbine system equipment with a crane installed below.