CN202945829U

CN202945829U - Semi-buried type twin-reactor nuclear island plant layout

Info

Publication number: CN202945829U
Application number: CN 201220277414
Authority: CN
Inventors: 秦忠; 宋丹戎; 许斌; 李庆
Original assignee: Nuclear Power Institute of China
Current assignee: Nuclear Power Institute of China
Priority date: 2012-06-13
Filing date: 2012-06-13
Publication date: 2013-05-22
Anticipated expiration: 2022-06-13

Abstract

The utility model belongs to a nuclear island plant layout, and particularly relates to a semi-buried type twin-reactor nuclear island plant layout. The semi-buried type twin-reactor nuclear island plant layout comprises reactor plants, an electric plant, a fuel plant and a nuclear auxiliary plant, wherein the two reactor plants are respectively located on two sides of the fuel plant, the electric plant is arranged on one side of the two reactor plants and the fuel plant, and the nuclear auxiliary plant is arranged on the other side of the two reactor plants and the fuel plant. The semi-buried type twin-reactor nuclear island plant layout has the advantages of being capable of reducing construction cost of nuclear power factories, capable of improving capacity of reactors for preventing terrorist attack, and capable of achieving containment short-term and long-term cooling after multiple extreme accidents overlay.

Description

A kind of half buried pair of core island factory building arranged

Technical field

The utility model belongs to a kind of nuclear island factory building to be arranged, is specifically related to a kind of half buried pair of core island factory building and arranges.

Background technology

More than common nuclear power plant's nuclear island factory building is above ground level quite the height, reactor building is exposed to single engine flivver that ground containment only can bear 1.5 tons of weights with the Maximum speed limit 360km/h shock that falls, and can't tackle the attack of terrorism of U.S. " 9.11 " and so on.

Summary of the invention

The purpose of this utility model is to provide and a kind ofly can improves the anti-attack of terrorism ability of reactor and cheap a kind of half buried pair of core island factory building arranged.

The utility model is to realize like this, half buried pair of core island factory building, it comprises reactor building, electrical building, fuel factory building and nuclear auxiliary building, wherein, two reactor buildings lay respectively at the both sides of fuel factory building, one side of two reactor buildings and fuel factory building is provided with electrical building, and opposite side is provided with nuclear auxiliary building.

Described reactor building half be embedded in undergroundly, includes a reactor in each reactor building, and reactor is installed on below ground level.

The containment steel dome of described reactor building is submerged in the pond.

The utility model has the advantages that, half buried pair of core island factory building arranged and can be reduced the nuclear power plant cost, improves the anti-attack of terrorism ability of reactor, can solve containment short-term and cooling for a long time after multiple extreme accident stack.

Description of drawings

Fig. 1 is provided by the utility model half buried pair of core island factory building plan view;

Fig. 2 is provided by the utility model half buried pair of core island factory building sectional drawing.

In figure, 1 reactor building, 2 reactors, 3 electrical buildings, 4 fuel factory buildings, 5 nuclear auxiliary buildings, 6 containment steel domes, 7 ponds.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.

As shown in Figure 1, half buried pair of core island factory building arranges that it comprises nuclear island factory building, nuclear island factory building comprises two reactor buildings 1, electrical building 3, fuel factory building 4 and nuclear auxiliary building 5, wherein, two reactor buildings 1 lay respectively at the both sides of fuel factory building 4, and two reactor buildings 1 are provided with electrical building 3 with a side of fuel factory building 4, opposite side is provided with nuclear auxiliary building 5, fuel factory building 4 is arranged in nuclear island factory building central authorities, and two heap common fuel factory buildings 4 share factory building and facility to greatest extent.

As shown in Figure 2, for improving the anti-attack of terrorism ability of reactor, contain nuclear steam supply system reactor building 1 half be embedded in underground, include a reactor in each reactor building 1, reactor is installed on below ground level, and reactor building 1 is exposed to overground part and is protected by electrical building 3, fuel factory building 4 and nuclear auxiliary building 5 encirclements; The containment steel dome 6 of reactor building 1 is submerged in the pond, after the multiple extreme accidents such as reactor generation loss of-coolant accident (LOCA) or main steam line rupture accident and the station blackout that superposes, with natural principles such as heat conduction, convection current and water evaporations, the containment heat is passed to ultimate heat sink-atmosphere.

The below is further detailed the utility model with a specific embodiment.The thermal power of two heaps is 500MW, reactor building internal diameter 28m, for improving the anti-attack of terrorism ability of reactor, the reactor building of containing reactor half be embedded in underground, reactor is positioned at the following 5m of ground level, it is 22m that reactor building is exposed to the overground part height, is surrounded by electrical building, fuel factory building and nuclear auxiliary building to protect; The fuel factory building is arranged in nuclear island factory building central authorities, and two heap common fuel factory buildings share factory building and facility to greatest extent; As shown in Figure 2, the containment steel dome of reactor building is submerged in the pond, and the water loading amount in pond is about 1500m3.After the multiple extreme accidents such as reactor generation loss of-coolant accident (LOCA) or main steam line rupture accident and the station blackout that superposes, with natural principles such as heat conduction, convection current and water evaporations, the containment heat is passed to ultimate heat sink-atmosphere.It floods the water yield can realize that containment is cooling and reach more than 7 days.

The utility model can be used for advanced nuclear power heap type, particularly take heat supply as main middle-size and small-size power reactor nuclear island factory building layout design, can improve safety and the economy of nuclear energy.

Claims

1. half buried pair of core island factory building arranged, it is characterized in that: nuclear island factory building comprises two reactor buildings (1), electrical building (3), fuel factory building (4) and nuclear auxiliary building (5), wherein, fuel factory building (4) is arranged in nuclear island factory building central authorities, two heap common fuel factory buildings (4), two reactor buildings (1) lay respectively at the both sides of fuel factory building (4), two reactor buildings (1) are provided with electrical building (3) with a side of fuel factory building (4), opposite side is provided with nuclear auxiliary building (5), described reactor building (1) half be embedded in underground, include a reactor in each reactor building (1), reactor is installed on below ground level.

2. as claimed in claim 1 half buried pair of core island factory building arranged, it is characterized in that: the containment steel dome (6) of described reactor building (1) is submerged in pond (7).