Electrical plant layout design method and electrical plant

Abstract

The invention relates to the technical field of nuclear power plant layout design, and discloses an electrical plant layout design method and an electrical plant, and the electrical plant layout design method comprises the following steps: dividing a plane area of the electrical plant into a nuclear grade anti-seismic area and a non-nuclear grade anti-seismic area; wherein the nuclear-grade anti-seismic area is provided with a plurality of groups of electric equipment, the plurality of groups of electric equipment are suitable for protecting and monitoring a reactor, and the nuclear-grade anti-seismic area is also provided with a main control room; the non-nuclear-grade anti-seismic area is provided with main control equipment for monitoring electric instruments, and the non-nuclear-grade anti-seismic area is further provided with a main water pipe gallery, a main steam pipe gallery and a cooling device. The electrical plant is divided into the nuclear-grade anti-seismic area and the non-nuclear-grade anti-seismic area by performing function division on the electrical plant, the nuclear-grade anti-seismic area is set as an anti-seismic first-class building, and the construction requirement and cost of the non-nuclear-grade anti-seismic area are lower than those of the anti-seismic first-class building; therefore, it is ensured that key equipment and systems can still operate safely under extreme conditions such as earthquakes, and the overall construction cost of an electrical plant is reduced.

Claims

1. A method for designing the layout of an electrical plant, characterized in that: Comprising: Dividing the planar area of the electrical building into a nuclear-grade seismic zone (100) and a non-nuclear-grade seismic zone (200); Among them, the nuclear-grade seismic zone (100) is divided into multiple layers in the height direction. The nuclear-grade seismic zone (100) is provided with multiple groups of electrical and instrumentation equipment, and the multiple groups of electrical and instrumentation equipment are suitable for reactor protection and monitoring. The nuclear-grade seismic zone (100) is also provided with a main control room (107); Dividing the non-nuclear-grade seismic zone (200) into multiple layers in the height direction. The non-nuclear-grade seismic zone (200) is provided with main control equipment for monitoring the electrical and instrumentation equipment. The non-nuclear-grade seismic zone (200) is also provided with a main water pipe gallery (12), a main steam pipe gallery (17) and a cooling device.

2. The electrical plant layout design method according to claim 1, characterized in that: Arranging the nuclear-grade seismic zone (100) close to the steam generator building (300); The non-nuclear-grade seismic zone (200) is arranged in a C shape. The non-nuclear-grade seismic zone (200) is divided into a first area (201), a second area (202) and a third area (203). The second area (202) is located on one side of the nuclear-grade seismic zone (100) away from the steam generator building (300). The first area (201) and the third area (203) are respectively located on both sides of the second area (202), and one end of the first area (201) and one end of the third area (203) are respectively adjacent to the steam generator building (300).

3. The electrical plant layout design method according to claim 2, characterized in that: The nuclear-grade seismic zone (100) and the non-nuclear-grade seismic zone (200) are respectively provided with a basement floor in the height direction, and the two basement floors are on the same floor; Among them, an electrical seismic zone ventilation machine room (101) is arranged in the nuclear-grade seismic zone (100), and the electrical seismic zone ventilation machine room (101) is suitable for cooling the multiple groups of electrical and instrumentation equipment; An equipment water cooling system equipment room (1) of the cooling device is arranged in the first area (201) of the non-nuclear-grade seismic zone (200), and a water pump and water tank room (2) is arranged in the second area (202) of the non-nuclear-grade seismic zone (200).

4. The electrical plant layout design method according to claim 2, characterized in that: The nuclear-grade seismic zone (100) and the non-nuclear-grade seismic zone (200) are respectively provided with a ground floor in the height direction, and the two ground floors are on the same floor; Among them, an emergency DC battery pack (102) is arranged in the nuclear-grade seismic zone (100); An equipment water cooling system equipment room (1) and an equipment chilled water unit equipment room (3) of the cooling device, as well as an NC-class instrument control cabinet room (4) are arranged in the first area (201) of the non-nuclear-grade seismic zone (200). An NC-class DC reliable battery pack (5) is arranged in the second area (202) of the non-nuclear-grade seismic zone (200), and a sanitary entrance (6) is arranged in the third area (203) of the non-nuclear-grade seismic zone (200).

5. The electrical plant layout design method according to claim 2, characterized in that: [[ID= ​ The first area (201) of the non-nuclear earthquake-resistant zone (200) is provided with two normal medium and low voltage power supply and distribution rooms (7), and a chilled water unit equipment room (3) of the cooling device; the second area (202) of the non-nuclear earthquake-resistant zone (200) is provided with a DC UPS power distribution room (8); and the third area (203) of the non-nuclear earthquake-resistant zone (200) is provided with three normal medium and low voltage power supply and distribution rooms (7).

6. The electrical plant layout design method according to claim 2, characterized in that: The nuclear-grade earthquake-resistant zone (100) and the non-nuclear-grade earthquake-resistant zone (200) are respectively provided with three above-ground floors in the height direction, and the two three-above-ground floors are provided on the same floor; Wherein, a medium-voltage electrical distribution panel cabinet (104) is arranged in the nuclear-grade earthquake-resistant zone (100); The first area (201) and the third area (203) of the non-nuclear grade seismic resistance zone (200) are respectively divided into a first equipment area and a second equipment area, wherein the first equipment area is located on a side of the second equipment area away from the nuclear grade seismic resistance zone (100), the first equipment area is provided with a first frequency converter room (9), a low voltage normal power distribution room (10) and an NC DCS cabinet (11), and the second equipment area is provided with a main water pipe gallery (12); The second area (202) of the non-nuclear seismic zone (200) is arranged with a main water pipe gallery (12), and the main water pipe galleries (12) of the two second equipment areas converge and are connected to the main water pipe gallery (12) of the second area (202).

7. The electrical plant layout design method according to claim 2, characterized in that: The nuclear-grade earthquake-resistant zone (100) and the non-nuclear-grade earthquake-resistant zone (200) are respectively provided with four above-ground floors in the height direction, and the two four-above-ground floors are provided on the same floor; The nuclear-grade earthquake-resistant zone (100) is provided with a DCS cabinet and a steam generator plant ventilation unit (105); The first area (201) and the third area (203) of the non-nuclear grade seismic resistance zone (200) are respectively divided into a third equipment area, a fourth equipment area and a fifth equipment area, wherein the third equipment area, the fourth equipment area and the fifth equipment area are sequentially arranged in a direction close to the nuclear grade seismic resistance zone (100), the third equipment area is provided with a second frequency converter room (13) and upper and lower half ventilation and air conditioning systems of an electrical equipment room, the fourth equipment area is provided with a main steam pipe gallery (17), and the fifth equipment area is provided with an NC-level instrumentation and control cabinet room (4); The second area (202) of the non-nuclear seismic zone (200) is arranged with a main steam pipeline gallery (17), and the main steam pipeline galleries (17) arranged in the two fourth equipment areas converge and are connected to the main steam pipeline gallery (17) in the second area (202).

8. The electrical plant layout design method according to claim 2, characterized in that: The nuclear-grade earthquake-resistant zone (100) and the non-nuclear-grade earthquake-resistant zone (200) are respectively provided with five floors above ground in the height direction, and the two five-story floors above ground are provided on the same floor; The nuclear-grade earthquake-resistant area (100) is provided with a DCS cabinet and a remote shutdown station (106); The first area (201) and the third area (203) of the non-nuclear earthquake-resistant area (200) are respectively provided with upper and lower half ventilation systems of the steam generator plant; A normal low-voltage power supply system distribution room (20) is arranged in the second area (202) of the non-nuclear earthquake-resistant zone (200).

9. The electrical plant layout design method according to claim 2, characterized in that: The nuclear-grade earthquake-resistant zone (100) is provided with six floors above ground in the height direction; Wherein, the nuclear-grade earthquake-resistant zone (100) is provided with a main control room (107).

10. The electrical plant layout design method according to claim 2, characterized in that: The nuclear-grade earthquake-resistant zone (100) is provided with seven floors above ground in the height direction; The nuclear-grade earthquake-resistant zone (100) is provided with a main control room emergency room (108).

11. An electrical plant, characterized in that: Arrangement is carried out according to the electrical plant layout design method according to any one of claims 1 to 10.

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