CN110534220B - Double-reactor T-shaped nuclear power station factory building group integrally provided with low-medium-level disposal field - Google Patents
Double-reactor T-shaped nuclear power station factory building group integrally provided with low-medium-level disposal field Download PDFInfo
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- CN110534220B CN110534220B CN201910842542.6A CN201910842542A CN110534220B CN 110534220 B CN110534220 B CN 110534220B CN 201910842542 A CN201910842542 A CN 201910842542A CN 110534220 B CN110534220 B CN 110534220B
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- 239000002699 waste material Substances 0.000 claims abstract description 39
- 239000000446 fuel Substances 0.000 claims abstract description 23
- 239000002351 wastewater Substances 0.000 claims description 8
- 239000002915 spent fuel radioactive waste Substances 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 5
- 239000002925 low-level radioactive waste Substances 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims 4
- 238000009412 basement excavation Methods 0.000 abstract description 11
- 239000002901 radioactive waste Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000009933 burial Methods 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009375 geological disposal Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000009382 near-surface disposal Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D1/00—Details of nuclear power plant
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
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- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model relates to the technical field of underground nuclear power plants, and discloses a double-pile T-shaped nuclear power plant group integrally provided with a low-medium-placement disposal site, which comprises a disposal site, two reactor plant chambers and a combined plant chamber, wherein the combined plant chamber comprises a safety plant, a fuel plant, a safety plant and a nuclear auxiliary plant which are sequentially arranged from outside to inside along the space of the underground plant chamber, the disposal site is communicated with the nuclear auxiliary plant, the reactor plant chambers are all connected with an electric plant chamber and a pressure relief chamber, the reactor plant chambers, the electric plant chambers and the pressure relief chambers are all arranged in a double-pile T-shaped mirror image manner by taking the central axis of the combined plant chamber as the center, and the reactor plant chambers are all communicated with the fuel plant, the safety plant and the nuclear auxiliary plant. The double-pile T-shaped nuclear power station factory building group with the low-medium-level disposal field is integrally arranged, so that the excavation amount of the whole underground cavern is reduced, the problem of disposal of low-medium-level waste after the operation and the retirement of the nuclear power station is solved, and the overall economy is improved.
Description
Technical Field
The utility model relates to the technical field of underground nuclear power stations, in particular to a double-stack T-shaped nuclear power station factory building group with a low-medium-level disposal field.
Background
With the development of domestic nuclear power, nuclear power sites become scarce resources more and more, and due to the importance of nuclear safety and special national conditions of China, the ground developable sites are very limited, on one hand, the utilization rate of the ground sites is improved through the mode of nuclear power plant group pile arrangement, and on the other hand, people transfer the eyes to underground space.
The Chinese patent application (publication date: 11-26 in 2014 and publication number: CN 203966573U) discloses an underground nuclear power plant in which a reactor and an auxiliary plant with radioactivity are placed underground, and describes the burial depth of the underground nuclear power plant, the arrangement of each plant cavity of the nuclear power plant and the excavation scale. The nuclear power station is placed underground, so that the protection function of the rock mass of the underground cavern can be fully exerted, and the safety level of the nuclear power station is improved. However, compared with the ground nuclear power station, the excavation of the large-scale underground cavern of the underground nuclear power station improves the construction cost of the power station and restricts the popularization of the underground nuclear power station.
The Chinese patent application (publication date: 09 month 24 of 2014, publication number: CN 104064233A) discloses an L-shaped arrangement underground nuclear power plant of a nuclear island chamber group, which takes a reactor chamber as a center, and carries out L-shaped arrangement on an auxiliary chamber and an electric chamber around the reactor chamber, wherein the size of an auxiliary chamber combination chamber with the largest excavation amount is 30m multiplied by 70.5m multiplied by 226m (width multiplied by height multiplied by length) according to the arrangement form. However, if the underground nuclear power station is designed in a multi-pile manner, whether a proper underground cavity space and huge excavation amount of the underground cavity can be found or not becomes a key factor for restricting popularization of the underground nuclear power station.
In addition, in recent years, the disposal of radioactive waste is a key problem for restricting the long-term sustainable development of domestic nuclear power, and low-medium level waste is currently subjected to medium-depth disposal, which is a disposal mode of near-surface disposal and geological disposal, and the medium-depth disposal is between tens of meters and hundreds of meters according to factors such as geological characteristics, ground surface conditions and human behaviors, and is close to the burial depth of an underground nuclear power station. At present, northwest disposal sites and Guangdong North dragon disposal sites are built in China, and 5 low-medium-level disposal sites are planned to be built in thirteen-five periods, and most of radioactive wastes generated by the nuclear power plants in China are still temporarily stored in the nuclear power plants at present due to the rigor site selection of the low-medium-level disposal sites and the longer construction period, so that the normal operation of the nuclear power plants is influenced.
Disclosure of Invention
The utility model aims to overcome the defects of the technology, and provides a double-pile T-shaped nuclear power station plant group with a low-medium-level disposal site integrally arranged, so that the excavation amount of an integral underground cavity is reduced, the disposal problem of low-medium-level waste after the operation and the retirement of the nuclear power station is solved, and the integral economical efficiency is improved.
In order to achieve the above purpose, the dual-stack T-shaped nuclear power plant group designed by the utility model is integrally provided with a low-medium-level disposal site, comprises a disposal site for disposing the low-medium-level disposal site and a reactor plant cavity for respectively storing two nuclear reactors with the same power, and further comprises a combined plant cavity, wherein the combined plant cavity comprises a safety plant, a fuel plant, a safety plant and a nuclear auxiliary plant which are sequentially arranged from outside to inside along an underground cavity space, the disposal site is positioned on the inner side of the depth of the underground cavity space relative to the nuclear auxiliary plant, the disposal site is communicated with the nuclear auxiliary plant through two low-medium-level waste transfer channels, the reactor plant cavity is connected with an electric plant cavity and a pressure relief cavity, the reactor plant cavity, the electric plant cavity and the pressure relief cavity are respectively arranged in a dual-stack T-shaped mirror image mode by taking the central axis of the combined plant cavity as the center, and the reactor plant cavity is respectively communicated with the fuel plant through two safety plants by the fuel channels and the two safety plants by connecting tunnels with the nuclear auxiliary plants.
Preferably, the two safety plants are separated into two parts by taking the central axis of the combined plant chamber as the center, the two reactor plant chambers are respectively communicated with the two parts of the safety plants through the safety tunnels, and the safety plants and safety equipment thereof matched with each nuclear reactor are only used by the nuclear reactor by increasing the height and functional layering of the chambers, so that the safety functions of the two power stations are ensured not to interfere with each other during the operation of the nuclear power plant, and the requirements of safety regulations are met.
Preferably, the disposal site is partitioned according to radiation protection measures and waste amounts of low-level and medium-level waste, the storage area of the medium-level waste is located in the middle of the disposal site, and the storage area of the low-level waste is located at the periphery of the disposal site around the storage area of the medium-level waste.
Preferably, the disposal site is built in a silo mode, and the bottom elevation of the disposal site is not lower than the bottom elevation of the reactor plant cavity, so that flooding under operation or accident working conditions is prevented.
Preferably, the bottom of low well radioactive waste transfer passageway is provided with the waste water monitoring groove, the waste water monitoring groove with the waste water of nuclear auxiliary factory building concentrates drainage system intercommunication, the disposal site bottom is equipped with drainage system, drainage system pass through the pit groove of low well radioactive waste transfer passageway bottom with nuclear auxiliary factory building intercommunication, the disposal site top is equipped with ring and hangs and ventilation system, two low well radioactive waste transfer passageway with the bottom intercommunication of disposal site.
Preferably, the distance between the reactor plant cavity and the combined plant cavity is greater than 50 meters, the transverse span of the combined plant cavity is not greater than 60 meters, the stability and the practical excavation feasibility of the cavity surrounding rock are ensured, the distance between the disposal field and the nuclear auxiliary plant is 50-100 meters, and the isolation effect of the disposal field and the nuclear auxiliary plant is ensured while the stability of the cavity surrounding rock is considered.
Preferably, the fuel plant comprises a new fuel zone for providing new fuel to the reactor plant cavity and a spent fuel zone for providing spent fuel, providing separate storage spaces for the new fuel and spent fuel.
Preferably, the electric plant cavities are all communicated with the ground conventional island through tunnels.
Compared with the prior art, the utility model has the following advantages:
1. the underground nuclear power plant and the low-medium-level disposal site are integrally designed and subjected to unified site selection, so that the three-simultaneous principle that the disposal site and the nuclear power plant are designed, constructed and put into use simultaneously is realized, the site selection problem of the low-medium-level disposal site is solved, and site resources are saved;
2. the low-medium-level disposal field and the underground nuclear power station are designed in a unified planning way, so that near-field disposal and real-time disposal of low-medium-level waste are realized, the low-medium-level waste which occupies the largest proportion of the radioactive waste is not needed to be transported out of a factory area, waste generated in the operation period can be directly nearby disposed after being packaged by means of the preparation, the original waste temporary storage function of the nuclear power station is separated, the function partition can be realized, the radiation influence in the operation period is greatly reduced, and the safety of the whole underground space is further improved;
3. the underground nuclear power station is subjected to double-pile T-shaped arrangement, so that the excavation amount of a combined plant cavity can be reduced, the realization of various functions of the plant is ensured by increasing the cavity height on the premise of not increasing the cavity span by the existing construction technology level, and the cavity excavation cost is reduced;
4. when the underground nuclear power stations are arranged in a double-pile T-shape, the safety plants of the two nuclear power stations only share a grotto, and the entity isolation is still carried out between the plants, so that the safety functions of the two power stations are ensured not to interfere with each other under various accidents, and the requirements of the latest nuclear safety regulations are met;
5. by arranging the underground nuclear power station in double piles and integrally designing and building the underground nuclear power station and the low-medium level waste disposal site, the building cost of the power station and the low-medium level waste disposal site is reduced, the economy is improved, and the popularization of the underground nuclear power station is facilitated.
Drawings
Fig. 1 is a schematic plan view of a plant group of a dual-stack T-type nuclear power plant with a low-medium-level disposal site integrally arranged in the present utility model.
The reference numerals of the components in the drawings are as follows:
disposal site 1, reactor factory building chamber 2, safe factory building 3, fuel factory building 4, nuclear auxiliary factory building 5, low and medium level waste transfer passageway 6, electric factory building chamber 7, pressure release chamber 8, fuel passageway 9, safe tunnel 10, connection tunnel 11.
Detailed Description
The utility model will now be described in further detail with reference to the drawings and to specific examples.
As shown in fig. 1, the double-pile T-shaped nuclear power station plant group with a low-medium-level disposal site is integrally arranged, the double-pile T-shaped nuclear power station plant group comprises a disposal site 1 for disposing the low-medium-level disposal site and reactor plant caverns 2 for respectively storing two nuclear reactors with the same power, and further comprises a combined plant caverns, wherein the combined plant caverns comprise a safety plant 3, a fuel plant 4, the safety plant 3 and a nuclear auxiliary plant 5 which are sequentially arranged from outside to inside along an underground caverns space, the disposal site 1 is positioned on the inner side of the depth of the underground caverns space relative to the nuclear auxiliary plant 5, the disposal site 1 is communicated with the nuclear auxiliary plant 5 through two low-medium-level waste transfer channels 6, the reactor plant caverns 2 are connected with an electric plant caverns 7 and a pressure relief caverns 8, the reactor plant caverns 2, the electric plant caverns 7 and the pressure relief caverns 8 are respectively arranged in a double-pile T-shaped mirror image mode by taking the central axes of the combined plant caverns as the center, and the reactor plant caverns 2 are respectively communicated with the fuel plant 4 through a fuel channel 9, and are respectively communicated with the two safety plants 3 through two safety tunnels 10, and are communicated with the nuclear auxiliary plant 5 through a connecting tunnel 11.
In this embodiment, the safe factory building 3 increases the height of the cavity and the layering of the factory building on the premise of not increasing the span of the cavity, the two safe factory buildings 3 are physically separated into two parts by taking the central axis of the combined factory building cavity as the center, the two reactor factory building cavities 2 are respectively communicated with the two parts of the safe factory building 3 through the safe tunnel 10, so that the safe factory building 3 matched with each nuclear reactor and the safety equipment thereof are only used by the nuclear reactor, the safe functions of the two power stations are ensured not to interfere with each other during the operation of the nuclear power plant, the requirements of safety regulations are met, the fuel factory building 4 is a single factory building, and the electric factory building cavity 7 is communicated with the ground conventional island through the tunnel, wherein the new fuel area for providing new fuel for the reactor factory building cavities 2 and the spent fuel area for providing spent fuel are included.
In addition, the disposal site 1 is built in a silo mode, the bottom elevation of the disposal site 1 is not lower than the bottom elevation of the reactor plant chamber 2, the disposal site 1 is partitioned according to radiation protection measures and waste amount of low-level and medium-level waste, a storage area of the medium-level waste is positioned in the middle of the disposal site 1, and a storage area of the low-level waste is positioned in a storage area surrounding the periphery of the disposal site 1. The bottom of the disposal site 1 is provided with a drainage system which is communicated with the nuclear auxiliary factory building 5 through a pit at the bottom of the low-medium level waste transfer channel 6, the top of the disposal site 1 is provided with a ring crane and a ventilation system, the two low-medium level waste transfer channels 6 are communicated with the bottom of the disposal site 1, meanwhile, the bottom of the low-medium level waste transfer channel 6 is provided with a waste water monitoring groove which is communicated with a waste water centralized discharge system of the nuclear auxiliary factory building 5,
in this embodiment, the capacity of the disposal site 1 is designed according to the total amount of low-medium level waste generated after the double-stack operation for 60 years and the retirement, the distance between the reactor plant chamber 2 and the combined plant chamber is greater than 50 meters, the transverse span of the combined plant chamber is not greater than 60 meters, and the distance between the disposal site 1 and the nuclear auxiliary plant 5 is 50-100 meters.
In this embodiment, the nuclear auxiliary plant 5 can be used with two nuclear reactors without increasing the span of the cavern. Simultaneously, peel off the temporary storage function of the low and medium level waste of original nuclear auxiliary factory building 5, transfer to disposal site 1 and directly handle, and then cancel the waste temporary storage factory building, reduced the factory building space of nuclear auxiliary factory building 5, be favorable to the realization of two heap arrangements.
The utility model integrally arranges the double-pile T-shaped nuclear power plant group of the low-medium-level disposal site, integrally designs the underground nuclear power plant and the low-medium-level disposal site 1, and uniformly selects sites, thereby realizing the three-simultaneous principle that the disposal site 1 and the nuclear power plant are simultaneously designed, simultaneously constructed and simultaneously put into use, solving the site selection problem of the low-medium-level disposal site 1 and saving site resources; meanwhile, the low-medium level disposal site 1 and the underground nuclear power station are subjected to unified planning design, so that near-field disposal and real-time disposal of low-medium level waste are realized, the low-medium level waste which occupies the largest proportion of the radioactive waste is not required to be transported out of a factory area, waste generated in the operation period can be directly and nearby disposed after being prepared and packed, the original waste temporary storage function of the nuclear power station is separated, the function partition can be realized, the radiation influence in the operation period is greatly reduced, and the safety of the whole underground space is further improved; in addition, the underground nuclear power station is subjected to double-pile T-shaped arrangement, so that the excavation amount of a combined plant cavity can be reduced, the realization of various functions of the plant is ensured by increasing the cavity height on the premise of not increasing the cavity span by the existing construction technology level, and the cavity excavation cost is reduced; moreover, when the underground nuclear power stations are arranged in a double-pile T-shape, the safety plants of the two nuclear power stations only share a grotto, and the entity isolation is still carried out between the plants, so that the safety functions of the two power stations are ensured not to interfere with each other under various accidents, and the requirements of the latest nuclear safety regulations are met; in a word, by arranging the underground nuclear power station in double piles and integrally designing and building the underground nuclear power station and the low-medium level waste disposal site 1, the building cost of the power station and the low-medium level waste disposal site 1 is reduced, the economy is improved, and the popularization of the underground nuclear power station is facilitated.
Claims (5)
1. The utility model provides an integrated double heap T type nuclear power station factory building crowd that has arranged low well to put disposal site, includes to put disposal site (1) that carries out the disposal to low well and deposit respectively reactor factory building cavern (2) of two nuclear reactors that have the same power, its characterized in that: still include combination factory building chamber, combination factory building chamber includes along underground cavern space by outer and interior safe factory building (3), fuel factory building (4), safe factory building (3) and nuclear auxiliary factory building (5) of arranging in proper order, handle place (1) for nuclear auxiliary factory building (5) are located underground cavern space's depth inboard, handle place (1) through two low medium level waste transfer channel (6) with nuclear auxiliary factory building (5) intercommunication, reactor factory building chamber (2) all link to have electric factory building chamber (7) and pressure release chamber (8), reactor factory building chamber (2), electric factory building chamber (7), pressure release chamber (8) all use the axis of combination chamber is the center and carries out two heap T type mirror images and arrange, reactor factory building chamber (2) all pass through fuel passage (9) with fuel factory building (4) intercommunication, through two safe tunnel (10) respectively with safe factory building (3) intercommunication, through connect nuclear (11) with two supplementary factory building (5) intercommunication, reactor chamber (2) are two safe factory building chamber (3) and two center of site (5) are the safe room (2) are the center of taking in order of being kept apart by two in the room (3) respectively Radiation protection measures and waste amount partitions of medium level waste, wherein a storage area of the medium level waste is positioned in the middle of the disposal site (1), the storage area of the low level waste is positioned at the periphery of the disposal site (1) and surrounds the storage area of the medium level waste, the disposal site (1) is built in a silo mode, and the bottom elevation of the disposal site (1) is not lower than the bottom elevation of a reactor plant cavity (2).
2. The dual stack T-shaped nuclear power plant cluster with integrated low-to-medium-level disposal sites of claim 1, wherein: the bottom of low well put waste transfer passageway (6) is provided with the waste water monitoring groove, the waste water monitoring groove with the waste water centralized discharge system intercommunication of nuclear auxiliary plant (5), disposal site (1) bottom is equipped with drainage system, drainage system passes through the pit groove of low well put waste transfer passageway (6) bottom with nuclear auxiliary plant (5) intercommunication, disposal site (1) top is equipped with ring hanging and ventilation system, two low well put waste transfer passageway (6) with the bottom intercommunication of disposal site (1).
3. The dual stack T-shaped nuclear power plant cluster with integrated low-to-medium-level disposal sites of claim 1, wherein: the distance between the reactor plant chamber (2) and the combined plant chamber is greater than 50 meters, the transverse span of the combined plant chamber is not greater than 60 meters, and the distance between the disposal site (1) and the nuclear auxiliary plant (5) is 50-100 meters.
4. The dual stack T-shaped nuclear power plant cluster with integrated low-to-medium-level disposal sites of claim 1, wherein: the fuel plant (4) comprises a new fuel zone for providing new fuel for the reactor plant cavity (2) and a spent fuel zone for providing spent fuel.
5. The dual stack T-shaped nuclear power plant cluster with integrated low-to-medium-level disposal sites of claim 1, wherein: and the electric plant chambers (7) are communicated with the ground conventional island through tunnels.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| ITRM20070256A1 (en) * | 2007-05-07 | 2008-11-08 | Susanna Antignano | NUCLEAR SUPERSICURO AND SIMPLE / EASY DECOMMISSIONING PLANT. |
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