CN107725095B - Emergency radioactivity diffusion prevention system for accidents of low-medium-level waste disposal site in karst cave - Google Patents
Emergency radioactivity diffusion prevention system for accidents of low-medium-level waste disposal site in karst cave Download PDFInfo
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- CN107725095B CN107725095B CN201711138119.5A CN201711138119A CN107725095B CN 107725095 B CN107725095 B CN 107725095B CN 201711138119 A CN201711138119 A CN 201711138119A CN 107725095 B CN107725095 B CN 107725095B
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- 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
- G21F9/02—Treating gases
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F11/00—Rescue devices or other safety devices, e.g. safety chambers or escape ways
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- 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
- G21F9/28—Treating solids
- G21F9/34—Disposal of solid waste
- G21F9/36—Disposal of solid waste by packaging; by baling
Abstract
The invention discloses an emergency radioactivity diffusion prevention system for a low-medium-level waste disposal site of a rock cave, which comprises a diffusion prevention ventilation system and a solid pollutant cleaning and packaging device, wherein the diffusion prevention ventilation system comprises a first ventilation vertical shaft, a second ventilation vertical shaft, a smoke discharging channel, a ventilation channel and mechanical ventilation equipment, the smoke discharging channel is a closed space between a tunnel top plate and the tunnel top, the middle part of the closed space is vertically arranged on a separation plate, the separation plate separates the closed space into a normal smoke discharging channel and an accident smoke discharging channel, the normal smoke discharging channel and the accident smoke discharging channel are respectively communicated with the first ventilation vertical shaft, the ventilation channel comprises a normal ventilation channel and an accident ventilation channel, the normal ventilation channel and the accident ventilation channel are respectively communicated with the second ventilation vertical shaft, and radioactive filtering devices are arranged in the accident smoke discharging channel and the accident ventilation channel. The invention can meet the ventilation and smoke discharge requirements of the disposal warehouse in the normal running state and can prevent the radioactive waste from being spread in the accident emergency state.
Description
Technical Field
The invention belongs to the technology of underground nuclear power stations, and particularly relates to an accident emergency radiation anti-diffusion system for a low-medium level waste disposal site of a karst cave.
Background
The low-medium level waste disposal site of the karst cave is positioned in an underground space with the depth of tens to hundreds of meters, the disposal area is generally in a tunnel type, silo type and combination of tunnel silos, and the disposal area is communicated with ground facilities through two tunnels. The low-medium level waste bag is transported to a disposal area by a transport vehicle. By analyzing various possible incidents during operation of the disposal site, the greatest trusted incident occurs during the transport and lifting of the waste bags. Accidents possibly generated in the process of transporting the waste bags are caused by external factors, and generally the fire of a transport vehicle causes the cracking of the waste bags, so that the solidified radioactive waste in the waste bags is scattered into a running tunnel to form radioactive release; accidents caused by the waste bag during the lifting process occur in the disposal area, and the waste bag is broken due to accidental unhooking and falling, so that the waste is broken and scattered to form radioactive release. The radioactive pollution forms in the two trusted accidents comprise solid dust and radioactive aerosol, the solid is required to be collected again, the gas is subjected to dust removal and filtration, the operation tunnel and the disposal area are guaranteed not to be polluted by the radioactivity, and the radioactivity cannot be discharged to the external environment through a ventilation system. Yet another possibility is that during decades of operation of the disposal warehouse, the waste packaging generates gases due to rust or decomposition by microorganisms, which carry the radioactive particles in the form of aerosols to contaminate the disposal area.
The above possible accidents all need to remove dust and filter radioactive solids and aerosols, and readback waste bags, so that the disposal sites running in China are near-surface disposal sites, and the solid waste formed after the waste bags are damaged can be collected again, but the gaseous waste can only be diffused, and the limitation of the radioactive waste is not considered by the common tunnel fireproof smoke discharging facilities.
Disclosure of Invention
The invention aims at overcoming the defects of the prior art, and combining the structural characteristics of a underground tunnel space, provides an accident emergency radiation diffusion prevention system for a low-medium-level waste disposal site of a rock tunnel, which can meet the ventilation and smoke discharge requirements of a disposal warehouse in a normal operation state and prevent the diffusion of radioactive wastes in an accident emergency state.
In order to achieve the purpose, the emergency radioactive anti-diffusion system for accidents of the low-medium level waste disposal site of the karst cave, which is designed by the invention, comprises an anti-diffusion ventilation system and a solid pollutant cleaning and packaging device, and is characterized in that: the diffusion-proof ventilation system comprises a first ventilation vertical shaft and a second ventilation vertical shaft which are arranged in a tunnel in a disposal site, a smoke exhaust channel arranged at the top of the tunnel, a ventilation channel arranged at the top of the disposal site and mechanical ventilation equipment, wherein the smoke exhaust channel is an airtight space of a tunnel top plate and the top of the tunnel, the middle part of the airtight space is vertically arranged on a partition plate, the partition plate separates the airtight space into a normal smoke exhaust channel and an accident smoke exhaust channel, the normal smoke exhaust channel and the accident smoke exhaust channel are respectively communicated with the first ventilation vertical shaft, the ventilation channel comprises a normal ventilation channel and an accident ventilation channel, the normal ventilation channel and the accident ventilation channel are respectively communicated with the second ventilation vertical shaft, and a radioactive filtering device is arranged in the accident smoke exhaust channel and the accident ventilation channel.
Further, the mechanical ventilation equipment comprises jet fans arranged in the operation tunnel and the operation branch tunnel in the treatment field and axial flow fans arranged in the treatment area connection tunnel. The tunnel entrance of the disposal area is provided with an axial flow fan for providing wind pressure for the disposal area.
Still further, ventilation shaft No. one is located the middle part of operation tunnel, no. two ventilation shafts are located in the operation branch tunnel with the disposal district intercommunication department. According to the overall arrangement form and the tunnel length of the disposal site, two ventilation shafts are arranged, a first ventilation shaft positioned in the operation tunnel and a second ventilation shaft positioned in the operation branch tunnel and used for natural ventilation.
Still further, normal smoke evacuation passageway loops through normal electronic smoke evacuation valve, normal smoke evacuation fan and ventilation shaft intercommunication, accident smoke evacuation passageway loops through accident electronic smoke evacuation valve, accident smoke evacuation fan, radioactivity filter equipment and ventilation shaft intercommunication, and accident smoke evacuation fan series connection filter equipment filters the radioactive substance in smog, dust and the aerosol.
Still further, normal ventilation passageway loops through normal ventilation tuber pipe, normal ventilation connection fire prevention valve, normal ventilation passageway fan and No. two ventilation shaft intercommunication, accident ventilation passageway loops through accident ventilation tuber pipe, accident connection fire prevention valve, accident ventilation passageway fan, radioactivity filter equipment and No. two ventilation shaft intercommunication.
Still further, be provided with emergent factory building in the operation tunnel, be provided with emergent branch tunnel in the connection tunnel, solid pollutant clearance packing apparatus places in emergent factory building and emergent branch tunnel. The waste disposal area is in a silo form and is connected to the operation tunnel and the operation branch tunnel through the tunnel, an emergency branch tunnel is arranged at a tunnel inlet of the disposal area, and cleaning and packing equipment is provided for radioactive solid waste under accident working conditions.
Furthermore, the jet fans are steering fans which are uniformly arranged according to the lengths of the running tunnel and the running branch tunnel and are arranged on the top plate of the tunnel, and can be steered in time according to smoke discharging requirements.
Furthermore, two rows of smoke exhaust ports are uniformly arranged on the tunnel roof, one row of smoke exhaust ports is communicated with the normal smoke exhaust channel, and the other row of smoke exhaust ports is communicated with the accident smoke exhaust channel.
Further, the smoke outlets are uniformly arranged along the length direction of the tunnel roof, and the distance between every two adjacent smoke outlets is 50-100 cm.
Furthermore, the control ends of the normal electric smoke exhaust valve, the accident electric smoke exhaust valve, the normal ventilation connection fireproof valve and the accident connection fireproof valve are connected with the output end of the radioactive alarm device.
According to the possible place of accident, the invention comprises a waste bag transportation area and a final disposal area, the auxiliary equipment is provided for solid radioactivity by utilizing branch tunnels and auxiliary plants at two sides of the tunnel, the integral ventilation filtering system is arranged in parallel according to the normal operation of the disposal site and the accident state, the ventilation mode comprises a ventilation shaft with natural ventilation, forced ventilation is realized through a jet fan, and an axial fan is assisted.
The invention has the following advantages:
(1) By arranging the emergency factory building and the ventilation facilities in the operation tunnel and the disposal area, radioactive solid dust and aerosol can be cleaned and filtered timely and effectively under the accident working condition, and secondary pollution and diffusion of radioactive substances are prevented.
(2) Through reasonable setting up ventilation shaft, tunnel efflux fan, axial fan, natural draft combines together with mechanical draft, provides good air current organization for whole disposal site.
(3) The whole ventilation system adopts an arrangement mode that normal working condition ventilation and accident working condition ventilation are connected in parallel, so that the requirement of long-term operation of high wind pressure caused by a radioactive filtering device is avoided, and the total energy consumption of the ventilation system is low. Meanwhile, by arranging an isolation facility, the two parallel systems are not mutually influenced.
(4) By arranging the direction-changeable jet fan, the radioactive release and pollution of each potential accident point can be treated, the controllability is strong, and the expansion of the radioactive pollution range is effectively prevented.
(5) The radioactive pollution treatment measures under the accident working condition can be started quickly by adopting the linkage mode of the radioactive alarm, the smoke exhaust valve, the fan and the filter.
(6) The ventilation vertical shaft and the air outlet are reasonably arranged, so that potential radioactive pollution flows from a low pollution area to a high pollution area, and radioactive substances are conveniently controlled.
Drawings
FIG. 1 is a general layout of a low-to-medium-level disposal site and accident emergency disposal facility of the present invention.
FIG. 2 is a detail view of section A-A of FIG. 1.
FIG. 3 is a detail view of section B-B of FIG. 1
In the figure: 10. the system comprises a running tunnel, 11, an operating branch tunnel, 1-1, a construction tunnel, 12, a first ventilation vertical shaft, 13, a second ventilation vertical shaft, 14, a connecting tunnel, 15, a normal ventilation channel, 16, an accident ventilation channel, 101, a normal smoke exhaust channel, 102, an accident smoke exhaust channel, 2, a waste disposal area, 21, a low medium level waste bag, 30, a jet fan, 31, a tunnel roof, 32, a smoke outlet, 33, a partition, 34, an axial fan, 35, a normal ventilation air pipe, 36, an accident ventilation air pipe, 37, a radioactive filtering device, 321, a normal electric smoke exhaust valve, 322, a normal smoke exhaust fan, 323, an accident smoke exhaust fan, 351, a normal ventilation connection fire damper, 352, 361, an accident connection fire damper, 362, an accident ventilation channel fan, 40, an emergency plant and 41, an emergency branch tunnel.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, which should not be construed as limiting the invention.
As shown in fig. 1 to 3, the emergency radiation diffusion prevention system for the accident of the low-medium level waste disposal site of the rock cavern is arranged in the low-medium level waste disposal site of the rock cavern, a waste disposal area 2 of the disposal site is in a silo form and is respectively communicated with an operation tunnel 10 and an operation branch tunnel 11 through a connection tunnel 14, the operation tunnel 10 is used as a main channel for waste transportation, an emergency factory building 40 is arranged in the operation tunnel 10, an emergency branch tunnel 41 is arranged in the connection tunnel 14, and in addition, a construction tunnel 1-1 in fig. 1 is communicated with the lower part of the silo of the disposal area 2.
The maximum reliable accidents of the low-medium-level disposal site mainly occur in the operation tunnel 10 and the disposal area 2, and the radioactive pollution forms caused by the accidents mainly comprise solid dust, radioactive aerosol and the like, so that emergency measures for the accidents are required to be provided for the radioactive pollutants on the basis of ensuring the ventilation requirements of the normal operation state of the disposal site.
The invention relates to an accident emergency radioactive anti-diffusion system for a low-medium level waste disposal site of a karst cave, which comprises an anti-diffusion ventilation system and a solid pollutant cleaning and packaging device. The solid contaminant cleaning and bagging apparatus is placed in an emergency plant 40 and an emergency branch tunnel 41.
The invention adopts a form of combining natural ventilation and mechanical ventilation, and the diffusion-proof ventilation system comprises a first ventilation vertical shaft 12 and a second ventilation vertical shaft 13 which are arranged in a tunnel in a disposal site, a smoke exhaust channel arranged at the top of the tunnel, a ventilation channel arranged at the top of a disposal area 2 and mechanical ventilation equipment. The first ventilation vertical shaft 12 is located in the middle of the running tunnel 10, and the second ventilation vertical shaft 13 is located in the running branch tunnel 11 and is communicated with the disposal area 2.
The mechanical ventilation device comprises jet fans 30 arranged in the operation tunnel 10 and the operation branch tunnel 11 in the treatment place and axial fans 34 arranged in the treatment area connection tunnel 14. The operation tunnel 10 is used as a new air channel, a first ventilation vertical shaft 12 is arranged according to the length of the operation tunnel 10, two rows of jet fans 30 are arranged on tunnel top plates 31 of the operation tunnel 10 and the operation branch tunnel 11, an axial flow fan 34 is arranged at a connecting tunnel 14 of the operation tunnel 10 and the treatment area 2 to provide fresh air for the treatment area 2, the fresh air is finally discharged to a second ventilation vertical shaft 13 through the connecting tunnel between the treatment area 2 and the operation branch tunnel 11, the second ventilation vertical shaft 13 is close to the treatment area 2, good airflow organization is achieved through the arrangement, and no ventilation dead angle is left. And a ventilation channel is provided for normal working conditions and accident working conditions.
The enclosed space at the top of the tunnel top plate 31 and the running tunnel 10 is used as a smoke exhaust channel, the middle part of the enclosed space is vertically arranged on the isolation plate 33, and the isolation plate 33 divides the enclosed space into a normal smoke exhaust channel 101 and an accident smoke exhaust channel 102. The normal smoke exhaust channel 101 is communicated with the first ventilation vertical shaft 12 through a normal electric smoke exhaust valve 321 and a normal smoke exhaust fan 322 in sequence, and the accident smoke exhaust channel 102 is communicated with the first ventilation vertical shaft 12 through an accident electric smoke exhaust valve 323, an accident smoke exhaust fan 324 and a radioactive filter device 37 in sequence.
Two rows of smoke outlets 32 are uniformly arranged on the tunnel top plate 31 at a certain distance (50-100 cm), one row is communicated with a normal smoke discharging channel 101, and the other row is communicated with an accident smoke discharging channel 102. The normal smoke discharging channel 101 is connected with a normal electric smoke discharging valve 321 and a normal smoke discharging fan 322, when the dust amount in the tunnel is large or a fire without radioactive release occurs, the normal electric smoke discharging valve 321 opens a smoke discharging mode, and dust or smoke is communicated to the first ventilation vertical shaft 12 to be discharged. The control ends of the normal electric smoke discharge valve 321 and the accident electric smoke discharge valve 323 are connected with the output end of the radioactive alarm device. The electric smoke valve 323 of the accident of the linkage of the radioactive alarm device opens the filtration mode of the accident smoke discharge, the fire-fighting equipment of the tunnel is utilized to put out the fire condition of the tunnel first, some jet fans below the fire point of the accident turn around the direction, control the radioactive dust and flue gas not to spread to the downstream of the tunnel and pollute the whole tunnel, the fan 324 of the accident smoke discharge guides the flue gas and dust to enter the filtration smoke discharge channel 102 of the accident rapidly, the radioactive dust and flue gas is discharged to the external space through the first ventilation shaft 12 after being filtered by the radioactive filter device 37. At the same time of extinguishing the fire, the cleaning and packing equipment in the emergency auxiliary plant 40 is started to clean and repackage the solid wastes polluting the tunnel. The radioactive solid and gaseous pollutants generated by the burst of the waste bag due to the fire of the vehicle running in the tunnel are cleaned, repacked and filtered for discharge.
The ventilation channels include a normal ventilation channel 15 and an accident ventilation channel 16. The normal ventilation channel 15 is communicated with the second ventilation shaft 13 through the normal ventilation air pipe 35, the normal ventilation connection fireproof valve 351 and the normal ventilation channel fan 352 in sequence, and the accident ventilation channel 16 is communicated with the second ventilation shaft 13 through the accident ventilation air pipe 36, the accident connection fireproof valve 361, the accident ventilation channel fan 362 and the radioactive filter device 37 in sequence. The control ends of the normal ventilation connection fire damper 351 and the accident connection fire damper 361 are connected with the output end of the radioactive alarm device.
The natural wind of the operation tunnel 10 causes the waste disposal area 2 through the axial flow fan 34, and is discharged through the connection tunnel of the disposal area 2 and the operation branch tunnel 11 after ventilation, the connection tunnel adopts an air pipe for ventilation, is divided into two channels connected in parallel according to the working state, and the non-radioactive gas is communicated to the second ventilation shaft 13 to be discharged to the external space under the normal working condition. When radioactive smoke and gas are generated by waste package damage in the hoisting process or the radioactive gas generated by long-term stacking of waste packages exceeds a specified index, the radioactive alarm device is started, the normal ventilation connection fire-proof valve 351 of the normal ventilation channel 15 is closed, the accident connection fire-proof valve 361 in the accident ventilation channel 16 is opened, the accident smoke discharging filtration mode is entered, and the radioactive dust and gas are quickly discharged to the second ventilation vertical shaft 13 after being guided by the accident ventilation channel fan 362 and filtered by the radioactive filter device 37. At the same time, the waste cleaning and bagging equipment in the emergency branch tunnel 41 is activated to clean and repack the scattered solid waste. So far, radioactive solid and gas waste generated by hoisting accidents are controlled and filtered to be discharged, and radioactive pollution is prevented.
Other parts not described in detail are prior art. The present invention is not strictly limited to the above-described embodiments.
Claims (8)
1. The utility model provides a low well radioactive waste disposal site accident emergency radioactivity diffusion prevention system in karst cave, includes diffusion prevention ventilation system and solid pollutant clearance packing apparatus, its characterized in that: the anti-diffusion ventilation system comprises a first ventilation vertical shaft (12) and a second ventilation vertical shaft (13) which are arranged in a tunnel in a disposal site, a smoke exhaust channel arranged at the top of the tunnel, a ventilation channel arranged at the top of a disposal area (2) and mechanical ventilation equipment, wherein the smoke exhaust channel is a closed space between a tunnel top plate (31) and the top of the tunnel, the middle part of the closed space is vertically arranged on a separation plate (33), the separation plate (33) separates the closed space into a normal smoke exhaust channel (101) and an accident smoke exhaust channel (102), the normal smoke exhaust channel (101) and the accident smoke exhaust channel (102) are respectively communicated with the first ventilation vertical shaft (12), the ventilation channel comprises a normal ventilation channel (15) and an accident ventilation channel (16), the normal ventilation channel (15) and the accident ventilation channel (16) are respectively communicated with the second ventilation vertical shaft (13), and a radiation filtering device (37) is arranged in the accident smoke exhaust channel (102) and the accident ventilation channel (16);
the mechanical ventilation equipment comprises jet fans (30) arranged in an operation tunnel (10) and an operation branch tunnel (11) in a treatment field and axial flow fans (34) arranged in a treatment area connection tunnel (14);
the first ventilation vertical shaft (12) is located in the middle of the running tunnel (10), and the second ventilation vertical shaft (13) is located in the running branch tunnel (11) and is communicated with the disposal area (2).
2. The cave low-medium level waste disposal site accident emergency radioactivity diffusion prevention system as claimed in claim 1, wherein: the normal smoke exhaust channel (101) is communicated with the first ventilation vertical shaft (12) through the normal electric smoke exhaust valve (321) and the normal smoke exhaust fan (322) in sequence, and the accident smoke exhaust channel (102) is communicated with the first ventilation vertical shaft (12) through the accident electric smoke exhaust valve (323), the accident smoke exhaust fan (324) and the radioactive filter device (37) in sequence.
3. The cave low-medium level waste disposal site accident emergency radioactivity diffusion prevention system as claimed in claim 2, wherein: the normal ventilation channel (15) is communicated with the second ventilation vertical shaft (13) sequentially through the normal ventilation air pipe (35), the normal ventilation connection fireproof valve (351) and the normal ventilation channel fan (352), and the accident ventilation channel (16) is communicated with the second ventilation vertical shaft (13) sequentially through the accident ventilation air pipe (36), the accident connection fireproof valve (361), the accident ventilation channel fan (362) and the radioactive filtering device (37).
4. The cave low-medium level waste disposal site accident emergency radioactivity diffusion prevention system as claimed in claim 1, wherein: an emergency plant (40) is arranged in the operation tunnel (10), an emergency branch tunnel (41) is arranged in the connection tunnel (14), and the solid pollutant cleaning and packaging device is placed in the emergency plant (40) and the emergency branch tunnel (41).
5. The cave low-medium level waste disposal site accident emergency radioactivity diffusion prevention system as claimed in claim 1, wherein: the jet fan (30) is a steering fan and is uniformly arranged according to the lengths of the running tunnel (10) and the running branch tunnel (11) and is arranged on the tunnel top plate (31).
6. The cave low-medium level waste disposal site accident emergency radioactivity diffusion prevention system as claimed in claim 1, wherein: two rows of smoke exhaust ports (32) are uniformly arranged on the tunnel top plate (31), one row is communicated with the normal smoke exhaust channel (101), and the other row is communicated with the accident smoke exhaust channel (102).
7. The cave low-medium level waste disposal site accident emergency radioactivity diffusion prevention system as claimed in claim 6, wherein: the smoke outlets (32) are uniformly arranged along the length direction of the tunnel roof (31), and the distance between every two adjacent smoke outlets (32) is 50-100 cm.
8. A cave low-medium level waste disposal site accident emergency radioactivity diffusion prevention system as claimed in claim 3, wherein: the control ends of the normal electric smoke exhaust valve (321), the accident electric smoke exhaust valve (323), the normal ventilation connection fireproof valve (351) and the accident connection fireproof valve (361) are connected with the output end of the radioactive alarm device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017103752259 | 2017-05-24 | ||
| CN201710375225.9A CN106981323A (en) | 2017-05-24 | 2017-05-24 | Grotto low and intermediate level radioac disposal site accident emergency radioactivity non-proliferation system |
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| Publication Number | Publication Date |
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| CN107725095A CN107725095A (en) | 2018-02-23 |
| CN107725095B true CN107725095B (en) | 2023-05-26 |
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| CN201710375225.9A Pending CN106981323A (en) | 2017-05-24 | 2017-05-24 | Grotto low and intermediate level radioac disposal site accident emergency radioactivity non-proliferation system |
| CN201711138119.5A Active CN107725095B (en) | 2017-05-24 | 2017-11-16 | Emergency radioactivity diffusion prevention system for accidents of low-medium-level waste disposal site in karst cave |
| CN201721560672.3U Active CN207526519U (en) | 2017-05-24 | 2017-11-16 | Grotto low and intermediate level radioac disposal site accident emergency radioactivity non-proliferation system |
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| CN201710375225.9A Pending CN106981323A (en) | 2017-05-24 | 2017-05-24 | Grotto low and intermediate level radioac disposal site accident emergency radioactivity non-proliferation system |
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| CN201721560672.3U Active CN207526519U (en) | 2017-05-24 | 2017-11-16 | Grotto low and intermediate level radioac disposal site accident emergency radioactivity non-proliferation system |
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| CN110095802B (en) * | 2018-01-31 | 2022-07-29 | 中国辐射防护研究院 | Method for simulating and researching hydrogen generation in radioactive solid waste disposal process |
| CN113266594A (en) * | 2021-04-12 | 2021-08-17 | 中国核电工程有限公司 | Annular space ventilation system and method |
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- 2017-05-24 CN CN201710375225.9A patent/CN106981323A/en active Pending
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- 2017-11-16 CN CN201721560672.3U patent/CN207526519U/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106981323A (en) | 2017-07-25 |
| CN107725095A (en) | 2018-02-23 |
| CN207526519U (en) | 2018-06-22 |
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