CN111599501B - Arrangement method of nuclear waste liquid system of nuclear auxiliary plant of nuclear power station - Google Patents
Arrangement method of nuclear waste liquid system of nuclear auxiliary plant of nuclear power station Download PDFInfo
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- CN111599501B CN111599501B CN202010312117.9A CN202010312117A CN111599501B CN 111599501 B CN111599501 B CN 111599501B CN 202010312117 A CN202010312117 A CN 202010312117A CN 111599501 B CN111599501 B CN 111599501B
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D1/00—Details of nuclear power plant
- G21D1/02—Arrangements of auxiliary equipment
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- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/04—Treating liquids
- G21F9/20—Disposal of liquid waste
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention belongs to the field of nuclear island design, and particularly relates to an arrangement method of a nuclear waste liquid system of a nuclear auxiliary plant of a nuclear power station, wherein the nuclear auxiliary plant comprises an underground two-layer structure and an overground six-layer structure; the underground second layer is provided with a process and chemical drainage groove room, a process and chemical drainage pump room, a valve operation room, a ground drainage pit, a process and chemical drainage pit; the underground layer is provided with a boron recovery intermediate storage tank room, a boron recovery conveying pump room and a nuclear waste liquid discharge pipeline room; the overground layer is provided with a front storage tank room, a front storage tank pump room, a boron recovery concentrated liquid tank room, a concentrated liquid pump room, a degassing tower drain pump and heat exchanger room and a distillate monitoring tank room; the two overground layers are provided with a nuclear waste liquid pipeline room, a degassing tower and heat exchanger room, an evaporation and heat exchange room, an evaporator valve operation room and a personnel inlet channel; the three layers on the ground are provided with desalters; the four layers on the ground are provided with filter rooms; the five aboveground layers are an overhaul hall provided with a crane for overhauling and installing the desalter and the filter; the six layers above the ground are provided with evaporator-condenser rooms.
Description
Technical Field
The invention belongs to the field of nuclear island design, and particularly relates to an arrangement method of a nuclear waste liquid system of a nuclear auxiliary factory building of a nuclear power station.
Background
The nuclear auxiliary plant is an important component of a nuclear island plant of a nuclear power station. The nuclear waste liquid system is one of a plurality of important systems of a nuclear auxiliary plant, so that health risks possibly brought to nuclear power plant personnel by radiation irradiation are avoided and reduced, the third-generation nuclear power safety technical standard is met, the arrangement of the nuclear waste liquid system in the nuclear auxiliary plant needs to be comprehensively planned on the premise of ensuring the complete function of a process system, the requirements of equipment installation, overhaul and passage are met, the safety of personnel and during normal operation and shutdown overhaul is ensured, and the safety and reliability of the nuclear power plant are improved.
Disclosure of Invention
The invention aims to provide an arrangement method of a nuclear waste liquid system of a nuclear auxiliary plant of a nuclear power station, which can meet the requirements of equipment installation, maintenance and passage on the premise of ensuring the complete function of a process system, is provided with reasonable partitions, ensures the safety of personnel during the normal operation and shutdown maintenance of the system, and improves the safety and reliability of the nuclear power station.
In order to achieve the purposes, the technical scheme adopted by the invention is an arrangement method of a nuclear waste liquid system of a nuclear auxiliary plant of a nuclear power station, wherein the nuclear auxiliary plant provided with the nuclear waste liquid system comprises two underground layers and six overground layers; the underground second layer is provided with a process and chemical drainage tank room, a process and chemical drainage pump room, a valve operation room, a ground drainage pit, a process and a chemical drainage pit; the underground layer is provided with a boron recovery intermediate storage tank room, a boron recovery conveying pump room and a nuclear waste liquid discharge pipeline room; the overground layer is provided with a front storage tank room, a front storage tank pump room, a boron recovery concentrated liquid tank room, a concentrated liquid pump room, a degassing tower drain pump and heat exchanger room and a distillate monitoring tank room; the two overground layers are provided with nuclear waste liquid pipeline rooms, degassing tower and heat exchanger rooms, evaporation and heat exchange rooms, evaporator valve operation rooms and personnel entry channels; the three layers on the ground are provided with desalters; the four layers on the ground are provided with filter rooms; the five aboveground layers are an overhaul hall provided with a crane for overhauling and installing the desalter and the filter; the six layers above the ground are provided with evaporator-condenser rooms.
Furthermore, the underground second layer is provided with a pump, a valve and a pipeline drainage ditch which are matched with the ground drainage pit, the process and the chemical drainage pit, and is provided with a slope.
Further, the evaporator condenser room is arranged in the overhaul hall.
Further, setting the workshops of all layers into corresponding protection areas according to protection requirements, wherein the protection areas are divided into a red area, an orange area, a yellow area and a green area from high to low according to the radioactivity degree;
in the second underground layer, the orange zones are arranged between the process and the chemical drainage grooves and between the process and the chemical drainage pits; a yellow area is arranged between the process and the chemical draining pump;
an orange zone is arranged between the boron recovery intermediate storage tanks and the nuclear waste liquid zone discharge pipeline in the underground layer; a yellow area is arranged between the boron recovery delivery pumps;
a red area is arranged between the front storage tanks on the ground layer; yellow areas are arranged among the front storage tank pumps, the distillate monitoring tank, the concentrated solution pump and the concentrated solution pump; an orange area is arranged between the concentrated liquid tanks;
in the second layer above the ground, a red area is arranged between the degassing tower and the heat exchanger and between the evaporation and heat exchange, and an orange area is arranged between the nuclear waste liquid pipelines;
three layers are arranged on the ground, a red area is arranged between the desalinization devices, and an orange area or a yellow area is arranged around the desalinization devices for protection;
four layers on the ground, wherein a red area is arranged between the filters, and a yellow area is arranged around the filters for protection;
the overhaul hall is set as a green zone.
Furthermore, the workshop belonging to the red zone is not close to the outer wall of the nuclear auxiliary plant, and a protective layer and a protective area are arranged on the periphery of the workshop belonging to the red zone.
Furthermore, need concentrate and place the workshop top of the equipment to be tested of nuclear waste liquid system sets up the shielding apron, needs to set up the workshop of shielding apron includes between the filter.
Further, the subsurface sublayer is disposed at-12.00 m; the underground layer is arranged at-5.25 m; the overground layer is arranged at the position of +/-0.00 m; the overground second layer is arranged at a position of +4.00 m; the three layers on the ground are arranged at the position of +6.50 m; the four layers on the ground are arranged at the position of +10.50 m; the five above-ground layers are arranged at +15.50 m.
Further, the nuclear auxiliary plant adopts an earthquake-resistant I-type reinforced concrete structure, and the earthquake acceleration value of the nuclear auxiliary plant is 0.3g.
Furthermore, each layer of the nuclear auxiliary plant is provided with an independent staircase room, an independent elevator room, an independent channel and an independent auxiliary facility to enter a corresponding waste liquid operation area.
The invention has the beneficial effects that:
the reasonable arrangement of each system, the centralized placement of high-radioactivity equipment and the complete physical isolation avoid pollution as much as possible; and important facilities are separated and protected by using methods of partition arrangement, space separation or entity barriers, so that the independence among the facilities is ensured, and the reliability, the safety and the economy of the power plant are improved.
Drawings
FIG. 1 is a layout view of the underground second floor of the plant according to an embodiment of the present invention;
FIG. 2 is a layout view of a sub-floor of the plant according to an embodiment of the present invention;
FIG. 3 is a layout of the upper floor of the plant according to an embodiment of the present invention;
FIG. 4 is a layout diagram of the two above-ground levels of the plant according to the embodiment of the present invention;
FIG. 5 is a layout diagram of the three above-ground levels of the plant according to the embodiment of the present invention;
FIG. 6 is a layout of four above-ground levels of the plant according to the embodiment of the present invention;
FIG. 7 is a layout diagram of five floors above the ground of the plant according to the embodiment of the invention;
FIG. 8 is a layout of six above-ground levels of the plant according to the embodiment of the present invention;
in the figure: n014-process and chemical drainage tank, N023, N024-process and chemical drainage pump, N026-ground drainage pit, N027-process and chemical drainage pit, N028-valve operation chamber, N206-nuclear waste liquid discharge pipeline chamber, N216, N223-boron recovery and delivery pump chamber, N230-boron recovery intermediate storage tank chamber, N305-degassing tower drainage pump and heat exchanger chamber, N306, N307-boron recovery concentrated liquid tank chamber, N308, N309-concentrated liquid pump chamber, N310, N350-front storage tank chamber, N311, N312-front storage tank pump chamber, N321-distillate monitoring tank chamber, N401-nuclear waste liquid pipeline chamber, N403-degassing tower and heat exchanger chamber, N406, N407-evaporation and heat exchange chamber, N408, N409-evaporator valve operation chamber and personnel access channel, N516, N517, N519, N625, N627, N626, N809-desalination device chamber, N809-filter chamber, N809-808, N625, N809-evaporator maintenance chamber and N808.
Detailed Description
The invention is further described below with reference to the figures and examples.
The invention provides an arrangement method of a nuclear waste liquid system of a nuclear auxiliary plant of a nuclear power station, which comprises the nuclear auxiliary plant of a nuclear island of the nuclear power station provided with the nuclear waste liquid system, wherein the nuclear auxiliary plant comprises two underground layers and six overground layers; the nuclear auxiliary plant can be divided into eight arrangement layers according to the elevation of the nuclear auxiliary plant. The nuclear auxiliary plant can bear 0.3g of earthquake acceleration due to the requirement of a third-generation nuclear power station, correspondingly provides stricter requirements for the arrangement of nuclear-grade equipment pipelines, and arranges equipment with large load towards a low floor as much as possible so as to reduce the load of equipment accident working conditions and avoid overlarge impact on a plant structure.
And (4) discharging the nuclear waste liquid in the nuclear auxiliary plant after the nuclear waste liquid needs to be treated due to different radioactive doses. The radiation subareas need to be accurately divided, the workshops belonging to the high-radiation areas are not close to the outer wall of the nuclear auxiliary workshop as much as possible, and the periphery of the workshops in the high-radiation areas is provided with a protective layer and a protective area (the protective area is divided into a red area, an orange area, a yellow area and a green area), and the defense is arranged layer by layer to reduce the influence on the environment. The equipment of the nuclear waste liquid system of the nuclear auxiliary factory building needs to be periodically overhauled, uniformly and intensively placed, and therefore a shielding cover plate is added above a workshop of the equipment to be tested of the nuclear waste liquid system.
As shown in FIG. 1, a floor plan of the two subterranean strata is shown, with the strata lying at-12.00 m (ranging from-12.00 m to-5.250 m). The layer is provided with a process and chemical drainage tank room N014, a process and chemical drainage pump room (comprising two workshops N023 and N024), a valve operation room N028, a ground drainage pit N026, a process and chemical drainage pit N027, a pump matched with the ground drainage pit N026, the process and chemical drainage pit N027, a water pump and a water pump,The valve and the pipeline drain trench are provided with slopes; wherein, 2 20m water tanks are arranged in the N014 space between the process and the chemical drainage tank 3 The nuclear waste liquid storage tank; n014 between the process and the chemical drainage tank is set as an orange area; setting N023 and N024 between the process and the chemical drainage pump as yellow areas; the process and chemical trap N027 is set to the orange region.
As shown in FIG. 2, a floor plan of a subsurface layer is shown, the layer being laid out at-5.25 m (ranging from-5.250 m to 0.00 m). The layer is provided with a boron recovery intermediate storage tank room N230, a boron recovery delivery pump room (comprising two working rooms N216 and N223) and a nuclear waste liquid discharge pipeline room N206; wherein 3 350m intermediate storage tanks are arranged in the N230 of the boron recovery intermediate storage tank 3 The nuclear waste liquid boron recovery intermediate storage tank; the N230 between the boron recovery intermediate storage tanks is set as an orange zone; the boron recovery conveying pump rooms N216 and N223 are set as yellow areas; and the N206 between the nuclear waste liquid discharge pipelines is set as an orange area.
As shown in fig. 3, is a floor plan of a floor above the ground, which is laid at 0.00m floors (ranging from 0.00m to 4.00 m). The layer is provided with a front storage tank room (comprising two workshops N310 and N350), a front storage tank pump room (comprising two workshops N311 and N312), a boron recovery concentrated solution tank room (comprising two workshops N306 and N307) and a concentrated solution pump room (comprising two workshops N308 and N309), a degassing tower drain pump and heat exchanger room N305 and a distillate monitoring tank room N321; wherein, the front storage tanks are respectively provided with two 75m of N310 and N350 which are separated 3 A front sump; two 70m distillation liquid monitoring tanks are arranged in the N321 3 The distillate monitoring tank. Two 5m concentrated solution tanks are respectively arranged in an isolated way by N306 and N307 3 The concentrated liquid tank of (4); the front storage tanks N310, N350 are set as red areas; the front sump pump rooms N311 and N312 are set as yellow areas; the distillate monitoring cell N321 was set to the yellow zone. The concentrated solution tank rooms N306 and N307 are set as orange areas; a concentrate pump room N309 is set as a yellow zone; the concentrate pump room N308 was set to the yellow zone.
As shown in fig. 4, a floor plan of the above-ground second floor is shown, which is laid at a 4.00m floor (ranging from 4.00m to 6.50 m). The layer is provided with a nuclear waste liquid pipeline room N401, a degassing tower and heat exchanger room N403, an evaporation and heat exchange room (comprising two workshops N406 and N407), an evaporator valve operation room and a personnel access channel (comprising two workshops N408 and N409); wherein, an 8t degassing tower is arranged in the N403 between the degassing tower and the heat exchanger; two 6t heaters, two 8t evaporators, two 2t bubble cap towers, two 0.5t cyclone separators and two 1.5t heat exchangers are respectively arranged in the evaporation and heat exchange rooms N406 and N407 in an isolated manner; setting the N403 between the degassing tower and the heat exchanger as a red area; evaporation and heat exchange rooms N406 and N407 are arranged at the local 5.00m position, the evaporation and heat exchange rooms N406 and N407 are set to be a red area, and a nuclear waste liquid pipeline room N401 is set to be an orange area.
As shown in fig. 5, is a floor plan of three layers above the ground, which are arranged at 6.50m layers (ranging from 6.50m to 10.50 m). The layer is provided with a desalter room (comprising four workshops N516, N517, N519 and N520), and four 3t desalters are respectively arranged in the desalter rooms N516, N517, N519 and N520 in an isolated manner; between the pipelines arranged at 6.50m to 9.5m, the N516, N517, N519 and N520 of the desalter are arranged at 9.50m to 15.5m (local staggered arrangement); the desalting chambers N516, N517, N519 and N520 are set as red areas, and orange areas or yellow areas are arranged around the red areas for protection.
As shown in fig. 6, is a floor plan of four floors above the ground, which are arranged at 10.50m floors (ranging from 10.50m to 15.50 m). The layer is provided with a filter room (comprising four workshops N625, N626, N627 and N628), and four 0.4t filters are respectively arranged in the filter rooms N625, N626, N627 and N628 in an isolated mode; the N625, N626, N627 and N628 in the filter room are set as red area, the yellow area is protected around, and the shielding cover plate is set on the top.
As shown in fig. 7, is a floor plan of five above ground layers, which are arranged at 15.50m layers (ranging from 15.50m to 24.50 m). The inspection hall N712 is set as a green area (the inspection hall comprises a fifth layer of N712 and a sixth layer of space above the N712), the area is used for installing inspection equipment and transporting waste filter cartridges, and a special shielding container is arranged in the transportation process so as not to pollute the environment.
As shown in fig. 8, is a floor plan of local six layers above the ground, which is arranged at 18.50m layers. An evaporative condenser room (comprising two working rooms N808 and N809 and positioned in the space of the sixth layer above the N712) is arranged in the device, the N808 and the N809 of the evaporative condenser room are set to be green areas, and 2 0.5t condensers are respectively arranged in the evaporative condenser room in an isolated mode.
In the implementation, each layer of the nuclear auxiliary plant is provided with an independent shielding staircase room, an elevator room and a channel external connection, so that the safe passing of personnel is ensured, and the personnel and auxiliary facilities enter a corresponding waste liquid operation area.
The nuclear auxiliary plant is of an earthquake-resistant I-type reinforced concrete structure, and the earthquake acceleration value is 0.3g; the shock resistance of the nuclear auxiliary plant is greatly enhanced, and the integrity and the sealing property of the equipment area of the nuclear waste liquid system are ensured.
In conclusion, the equipment is reasonably arranged in the nuclear auxiliary plant on the premise of ensuring the functions of all systems of the nuclear waste liquid in the nuclear auxiliary plant; important facilities are separated and protected by using methods of partition arrangement, space separation or entity barriers, so that the independence among the facilities is ensured, and the reliability of the nuclear power station is improved; meanwhile, a personnel passage and an overhaul hall are arranged in the region. The method for designing the arrangement of the nuclear waste liquid of the nuclear auxiliary factory building of the nuclear power station can be widely applied to third-generation nuclear power units.
The device according to the present invention is not limited to the embodiments described in the specific embodiments, and other embodiments can be derived by those skilled in the art according to the technical solutions of the present invention, and the device also belongs to the technical innovation scope of the present invention.
Claims (8)
1. An arrangement method of a nuclear waste liquid system of a nuclear auxiliary factory building of a nuclear power station is characterized by comprising the following steps: the nuclear auxiliary plant provided with the nuclear waste liquid system comprises two underground layers and six overground layers; the underground two layers are provided with a process and chemical drainage tank room (N014), a process and chemical drainage pump room (N023 and N024), a valve operation room (N028), a ground drainage pit (N026), a process and chemical drainage pit (N027), the underground layer is provided with a boron recovery intermediate storage tank room (N230), a boron recovery delivery pump room (N216 and N223) and a nuclear waste liquid discharge pipeline room (N206); the overground layer is provided with front storage tank rooms (N310 and N350), front storage tank pump rooms (N311 and N312), a boron recovery concentrated liquid tank room (N306 and N307), a concentrated liquid pump room (N308 and N309), a degassing tower drain pump and heat exchanger room (N305) and a distillate monitoring tank room (N321), and the overground layer is provided with a nuclear waste liquid pipeline room (N401), a degassing tower and heat exchanger room (N403), an evaporation and heat exchange room (N406 and N407), an evaporator valve operation room and a personnel inlet channel (N408 and N409); the three above-ground layers are provided with desalter rooms (N516, N517, N519 and N520); filter rooms (N625, N626, N627 and N628) are arranged on the four layers above the ground; the five aboveground layers are an overhaul hall (N712) provided with a crane for overhauling and installing a desalter and a filter; six floors above the ground are provided with evaporator-condenser rooms (N808, N809), and the service hall (N712) further comprises a space of the six floors above the service hall (N712).
2. The arrangement method of the nuclear waste liquid system of the nuclear auxiliary plant of the nuclear power plant as claimed in claim 1, which is characterized in that: and the underground second layer is provided with a pump, a valve and a pipeline drainage ditch which are matched with the ground drainage pit (N026), the process and the chemical drainage pit (N027) and are provided with slopes.
3. The arrangement method of the nuclear waste liquid system of the nuclear auxiliary plant of the nuclear power plant as claimed in claim 1, which is characterized in that: setting the workshops of each layer as corresponding protection areas according to protection requirements, wherein the protection areas are divided into a red area, an orange area, a yellow area and a green area from high to low according to the radioactivity degree;
in the second underground layer, all the spaces (N014) between the process and chemical drainage grooves and the process and chemical drainage pits (N027) are set as orange zones; a yellow area is set between the process and the chemical drainage pump (N023 and N024);
in the underground layer, the boron recovery intermediate storage tank room (N230) and the nuclear waste liquid discharge pipeline room (N206) are set as an orange area; the boron recovery conveying pump rooms (N216 and N223) are set as yellow areas;
on the above-ground layer, the front storage tanks (N310, N350) are set as red areas; the front storage tank pump rooms (N311, N312), the distillate monitoring tank room (N321) and the concentrated solution pump rooms (N308, N309) are set as yellow areas; the concentrated solution tank rooms (N306 and N307) are set as orange areas;
in the second layer above the ground, the degassing tower and heat exchanger room (N403), the evaporation and heat exchange room (N406, N407) are set to be a red area, and the nuclear waste liquid pipeline room (N401) is set to be an orange area;
three layers above the ground are provided, red areas are arranged among the desalinization devices (N516, N517, N519 and N520), and orange areas or yellow areas are protected around the red areas;
four layers above the ground, the filter rooms (N625, N626, N627 and N628) are set to be red areas, and the periphery is protected by yellow areas;
the service lobby (N712) is set to the green zone.
4. The arrangement method of the nuclear waste liquid system of the nuclear auxiliary plant of the nuclear power plant as claimed in claim 3, which is characterized in that: the workshop belonging to the red zone is not close to the outer wall of the nuclear auxiliary workshop, and a protective layer and a protective area are arranged on the periphery of the workshop belonging to the red zone.
5. The arrangement method of the nuclear waste liquid system of the nuclear auxiliary plant of the nuclear power plant as claimed in claim 4, which is characterized in that: the shielding cover plate is arranged at the top of the workshop of the equipment to be tested, which needs to be intensively placed in the nuclear waste liquid system, and the workshop which needs to be provided with the shielding cover plate comprises the filter workshop (N625, N626, N627 and N628).
6. The arrangement method of the nuclear waste liquid system of the nuclear auxiliary plant of the nuclear power plant as claimed in claim 1, which is characterized in that: the underground second layer is arranged at-12.00 m; the underground layer is arranged at-5.25 m; the overground layer is arranged at the position of +/-0.00 m; the overground second layer is arranged at a position of +4.00 m; the three layers on the ground are arranged at the position of +6.50 m; the four layers on the ground are arranged at the position of +10.50 m; the five above-ground layers are arranged at +15.50 m.
7. The arrangement method of the nuclear waste liquid system of the nuclear auxiliary plant of the nuclear power plant as claimed in claim 1, which is characterized in that: the nuclear auxiliary plant adopts an earthquake-resistant I-type reinforced concrete structure, and the earthquake acceleration value of the nuclear auxiliary plant is 0.3g.
8. The arrangement method of the nuclear waste liquid system of the nuclear auxiliary plant of the nuclear power plant as claimed in claim 1, which is characterized in that: each layer of the nuclear auxiliary plant is provided with an independent staircase room, an independent elevator room, an independent channel and an independent auxiliary facility to enter a corresponding waste liquid operation area.
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| CN202010312117.9A CN111599501B (en) | 2020-04-20 | 2020-04-20 | Arrangement method of nuclear waste liquid system of nuclear auxiliary plant of nuclear power station |
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| CN111599501B true CN111599501B (en) | 2022-11-25 |
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| CN113754014A (en) * | 2021-09-09 | 2021-12-07 | 中国核电工程有限公司 | Reverse osmosis concentrated water facility, arrangement method and seawater desalination system |
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| CN103137230A (en) * | 2013-02-28 | 2013-06-05 | 中广核工程有限公司 | Nuclear power station radioactive waste liquid treatment system |
| CN108597629A (en) * | 2018-03-22 | 2018-09-28 | 中国核电工程有限公司 | A kind of arrangement of nuclear plant safety workshop |
| CN110047606A (en) * | 2019-03-01 | 2019-07-23 | 中国核电工程有限公司 | A kind of arragement construction of fuel for nuclear power plant workshop |
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