CN108735325B - Movable gets rid of environmental radiation pollution's device - Google Patents
Movable gets rid of environmental radiation pollution's device Download PDFInfo
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- CN108735325B CN108735325B CN201810378927.7A CN201810378927A CN108735325B CN 108735325 B CN108735325 B CN 108735325B CN 201810378927 A CN201810378927 A CN 201810378927A CN 108735325 B CN108735325 B CN 108735325B
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- radiation
- shell
- water tank
- removal system
- gas
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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
- G21F9/001—Decontamination of contaminated objects, apparatus, clothes, food; Preventing contamination thereof
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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
-
- 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
- G21F9/04—Treating liquids
- G21F9/20—Disposal of liquid waste
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
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Abstract
The invention relates to a movable device for removing environmental radiation pollution, which comprises a shell, a gas radiation removing system and a solid-liquid radiation removing system, wherein the gas radiation removing system comprises a gas inlet, a gas outlet and a gas outlet; the gas radiation removal system and the solid-liquid radiation removal system are both arranged inside the shell. The invention has the following beneficial effects: 1) the integrated decontamination system has the advantages of compact structure, small occupied space, convenient movement and capability of effectively removing radiation pollution. 2) Through the combination of the flat suction nozzle at the front end, the shovel and the scissors, the multifunctional combined type vacuum cleaner can be suitable for removing pollution of different complex environments, and is strong in operability and wide in application range. 3) And a two-layer shell is adopted, so that the radiation safety of personnel is ensured while decontamination is performed. 4) The mode of adopting external water tank can provide the supplementary water source for the main equipment of device, effectively guarantees the normal operating of device.
Description
Technical Field
The invention belongs to the field of environmental decontamination after a nuclear power station accident, and particularly relates to a movable device for removing environmental radiation pollution.
Background
In 2011, 3, 11 days, a richter grade 9.0 earthquake occurs in the sea area near the east coast of the state of japan, and tsunami exceeding 14m causes the fukushima nuclear power plant to lose all alternating current and direct current power supplies, so that an instrumentation and control system fails, and a fukuma nuclear leakage accident in japan is caused. Accidents eventually lead to the release of large amounts of radioactive materials from the environment (both in gaseous and liquid form), causing radiation damage to the public and workers, and radioactive contamination of the environment. On one hand, radiation pollution of the environment can threaten the physical health of people, and on the other hand, psychological influence and psychological pressure are caused to residents in a polluted area or nearby the polluted area, so that the normal life and production order of people are influenced, and the social security is damaged; in addition, the released radioactive materials may cause variation of biological species and long-term imbalance of the ecological environment for a long period of time, and may destroy the ecological environment if not treated for a short period of time.
Therefore, after an accident in a nuclear power plant, under the condition that the accident is controlled, pollutants in the environment need to be removed as soon as possible. In view of the above situation, the present invention provides a movable device for removing environmental radiation pollution in a specific application environment after a nuclear power plant accident.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a movable device for removing environmental radiation pollution.
The technical scheme of the invention is as follows:
a movable device for removing environmental radiation pollution comprises a shell, a gas radiation removal system and a solid-liquid radiation removal system; the gas radiation removal system and the solid-liquid radiation removal system are both arranged inside the shell.
Further, in the above movable apparatus for removing environmental radiation pollution, the gas radiation removal system includes a fan, a HEPA filter and a filtering water tank, which are connected in sequence; an air inlet pipeline of the fan penetrates through the shell to be communicated with the outside, and a first valve is arranged on the air inlet pipeline; the upper part of the filtering water tank is opened.
Further, foretell movable gets rid of environmental radiation pollution's device, the HEPA filter with all be provided with the radioactivity monitor on the filtration water tank, still be provided with the water level monitor on the filtration water tank.
Further, in the above movable apparatus for removing environmental radiation pollution, the solid-liquid radiation removal system comprises a grinder, a first power pump, a stirrer, a pre-filter and a desalter, which are connected in sequence; the downstream pipeline of the desalter is connected with the upstream pipeline of the stirrer to form a material loop; a second power pump for guiding materials from the desalter to the stirrer is arranged on a downstream pipeline of the desalter; and a second valve is arranged on an upstream pipeline of the grinding machine.
Furthermore, in the above movable device for removing environmental radiation pollution, the pre-filter and the demineralizer are both provided with radioactivity monitors.
Further, in the above-mentioned movable apparatus for removing environmental radiation pollution, the housing is provided with a water tank, and a water replenishing pipeline of the water tank is connected with the filtering water tank and the material loop respectively; the water tank is also connected with a nozzle of the water tank through a flushing pipeline.
Further, according to the movable device for removing the environmental radiation pollution, the shell is provided with the ventilation device and the floor drain.
Further, the above-mentioned movable apparatus for removing environmental radiation pollution, the housing comprises an inner polyethylene layer and an outer stainless steel layer.
Further, in the above movable device for removing environmental radiation pollution, the housing is provided with a handle which is convenient to hold manually; the bottom of the shell is provided with wheels.
Further, in the above movable device for removing environmental radiation pollution, the housing is further provided with a flat suction nozzle, a shovel and/or scissors; the flat suction nozzle is connected with an inlet of the gas radiation removal system.
The invention has the following beneficial effects:
1) the integrated decontamination system has the advantages of compact structure, small occupied space, convenient movement and capability of effectively removing radiation pollution.
2) Through the combination of the flat suction nozzle at the front end, the shovel and the scissors, the multifunctional combined type vacuum cleaner can be suitable for removing pollution of different complex environments, and is strong in operability and wide in application range.
3) And a two-layer shell is adopted, so that the radiation safety of personnel is ensured while decontamination is performed.
4) The mode of adopting external water tank can provide the supplementary water source for the main equipment of device, effectively guarantees the normal operating of device.
Drawings
Fig. 1 is a schematic overall structure diagram of a mobile device for removing environmental radiation pollution according to the present invention.
Fig. 2 is a schematic diagram of the internal structure of a mobile device for removing environmental radiation pollution according to the present invention.
In the above figures, I, tool; II. A housing; III, a ventilation device; IV, wheels; v, a handle; 1. a first valve; 2. a fan; 3. a HEPA filter; 4. a filtering water tank; 5. a second valve; 6. a grinder; 7. a first power pump; 8. a stirrer; 9. a pre-filter; 10. a desalter; 11. a second power pump; 12. an inner polyethylene layer; 13. an outer layer of stainless steel; 14. a water tank; 15. a water tank nozzle; 16. a radioactivity monitor; 17. a radioactivity monitor; 18. a water level monitor; 19. a radioactivity monitor; 20. a radioactivity monitor.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
As shown in FIG. 2, the invention provides a movable device for removing environmental radiation pollution, which comprises a shell II, a gas radiation removal system and a solid-liquid radiation removal system; and the gas radiation removing system and the solid-liquid radiation removing system are both arranged inside the shell II.
As shown in fig. 2, the gas radiation removal system includes a fan 2, a HEPA filter 3, and a filtering water tank 4, which are connected in sequence; an air inlet pipeline of the fan 2 penetrates through the shell II to be communicated with the outside, and a first valve 1 is arranged on the air inlet pipeline; the upper part of the filtering water tank 4 is opened. The HEPA filter 3 with all be provided with radioactivity monitor (16, 17) on the filtration water tank 4, still be provided with water level monitor 18 on the filtration water tank 4.
In fig. 2, the solid-liquid radiation removal system comprises a grinder 6, a first power pump 7, an agitator 8, a pre-filter 9 and a desalter 10 which are connected in sequence; the downstream pipeline of the desalter 10 is connected with the upstream pipeline of the stirrer 8 to form a material loop; a second power pump 11 for guiding the materials from the desalter 10 to the stirrer 8 is arranged on a downstream pipeline of the desalter 10; a second valve 5 is arranged in the upstream line of the mill 6. Radioactivity monitors (19 and 20) are arranged on the pre-filter 9 and the desalter 10.
In fig. 2, the housing II includes an inner polyethylene layer 12 and an outer stainless steel layer 13, the housing II is provided with a water tank 14, and a water replenishing pipeline of the water tank 14 is respectively connected with the filtering water tank 4 and the material loop; the cistern 14 is also connected to a cistern nozzle 15 via a flushing line.
As shown in fig. 1, a ventilation device III and a floor drain are arranged on the housing II; the ventilation device III can ventilate the internal air space to prevent the internal pressure from being too high; a small amount of leaked liquid of the system can be directly discharged from the floor drain IV, so that the pollution to the internal environment and the influence on the replacement of other equipment are avoided. In order to facilitate operation and movement, a handle V which is convenient to hold manually is arranged on the shell II; and wheels IV are arranged at the bottom of the shell II.
In addition, the movable device for removing the environmental radiation pollution is characterized in that a tool I is further arranged on the shell II, and comprises a flat suction nozzle for sucking gas, an iron shovel for removing the surface layer of soil and/or scissors for removing vegetation; the flat suction nozzle is connected with an inlet of the gas radiation removal system.
The use process in the embodiment of the invention is as follows:
1) considering the characteristics of radiation pollution environment firstly, if the smoothness of the ground or floor slab and the like is high, the flat suction nozzle of the tool I can be selected, the first valve 1 is opened, radioactive nuclide is sucked into the pipeline through the suction force of the fan 2 and is removed through the subsequent HEPA filter 3, the filtered gas is communicated to the lower part of the filtering water tank 4, and after the filtering water tank is washed, the purified clean gas is released into the shell II and is finally discharged into the environment through the ventilation device III (a ventilation fan in the embodiment).
2) In the subsystem, the HEPA filter 3 is provided with a radioactivity monitor 16, and if the dosage rate level is too high, the top cover of the shell II can be opened for replacement; the filtering water tank 4 is provided with a radioactive monitor 17 and a water level monitor 18, if the dosage rate level is too high, the radioactive monitor 17 gives an alarm, and the device can be detached, cleaned or replaced; if the water level monitor 18 alarms, it can be replenished with water from the water tank 14.
3) If the smoothness of the environment needing decontamination is not high, the environment can be cleaned by using the water tank nozzle 15; if the soil is involved, the surface floating soil with different thicknesses can be collected by using an iron shovel according to the needs, if a small amount of vegetation exists, the vegetation can be collected by using scissors, meanwhile, the second valve 5 is opened, pollutants collected in the three ways enter the grinding machine 6 through gravity to be ground, then are transferred to the stirrer 8 through the first power pump 7 to be fully stirred, finally are filtered through the pre-filter 9 and the desalter 10, and then liquid returns to the upstream of the stirrer 8 through the second power pump 11.
4) The subsystems, pre-filter 9 and demineralizer 10, are provided with radioactivity monitors 19 and 20, respectively, which can be replaced if the dose rate level is too high. In addition, if the water amount in the loop is reduced, water can be supplemented through the water tank 14, and the normal operation of the system is ensured.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.
Claims (8)
1. A movable device for removing environmental radiation pollution is characterized in that: comprises a shell (II), a gas radiation removal system and a solid-liquid radiation removal system; the gas radiation removal system and the solid-liquid radiation removal system are both arranged in the shell (II);
the gas radiation removal system comprises a fan (2), an HEPA filter (3) and a filtering water tank (4) which are connected in sequence; an air inlet pipeline of the fan (2) penetrates through the shell (II) to be communicated with the outside, and a first valve (1) is arranged on the air inlet pipeline; the upper part of the filtering water tank (4) is opened;
the solid-liquid radiation removal system comprises a grinding machine (6), a first power pump (7), a stirrer (8), a pre-filter (9) and a desalter (10) which are connected in sequence; the downstream pipeline of the desalter (10) is connected with the upstream pipeline of the stirrer (8) to form a material loop; a second power pump (11) for guiding the materials from the desalter (10) to the stirrer (8) is arranged on a downstream pipeline of the desalter (10); and a second valve (5) is arranged on an upstream pipeline of the grinding machine (6).
2. The mobile ambient radiation decontamination apparatus of claim 1, further comprising:
HEPA filter (3) with all be provided with the radioactivity monitor on filtering water tank (4), still be provided with water level monitor (18) on filtering water tank (4).
3. The mobile ambient radiation decontamination apparatus of claim 1, further comprising:
radioactivity monitors are arranged on the pre-filter (9) and the desalter (10).
4. The mobile ambient radiation decontamination device of claim 3, further comprising:
the shell (II) is provided with a water tank (14), and a water replenishing pipeline of the water tank (14) is respectively connected with the filtering water tank (4) and the material loop; the water tank (14) is also connected with a water tank nozzle (15) through a flushing pipeline.
5. The mobile ambient radiation exposure apparatus of any of claims 1-4, further comprising:
and a ventilation device (III) and a floor drain are arranged on the shell (II).
6. The mobile ambient radiation exposure apparatus of any of claims 1-4, further comprising:
the shell (II) comprises a polyethylene inner layer (12) and a stainless steel outer layer (13).
7. The mobile ambient radiation exposure apparatus of any of claims 1-4, further comprising: a handle (V) which is convenient to hold manually is arranged on the shell (I I); wheels (IV) are arranged at the bottom of the shell (II).
8. The mobile ambient radiation exposure apparatus of any of claims 1-4, further comprising:
the shell (II) is also provided with a flat suction nozzle, an iron shovel and/or scissors; the flat suction nozzle is connected with an inlet of the gas radiation removal system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810378927.7A CN108735325B (en) | 2018-04-25 | 2018-04-25 | Movable gets rid of environmental radiation pollution's device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810378927.7A CN108735325B (en) | 2018-04-25 | 2018-04-25 | Movable gets rid of environmental radiation pollution's device |
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| Publication Number | Publication Date |
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| CN108735325A CN108735325A (en) | 2018-11-02 |
| CN108735325B true CN108735325B (en) | 2021-05-18 |
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| CN201810378927.7A Active CN108735325B (en) | 2018-04-25 | 2018-04-25 | Movable gets rid of environmental radiation pollution's device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112366018A (en) * | 2020-11-06 | 2021-02-12 | 福建福清核电有限公司 | Automatic valve chamber radioactive dirt removing device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0675119B2 (en) * | 1986-11-14 | 1994-09-21 | 中部電力株式会社 | Floor cleaning / wiping decontamination equipment in nuclear facilities |
| EP0614196A1 (en) * | 1993-03-01 | 1994-09-07 | Deco-Hanulik Ag | Process for cleaning surfaces of a mineral material, and apparatus for carrying out this process |
| JP3824371B2 (en) * | 1997-03-06 | 2006-09-20 | 株式会社アトックス | Wall decontamination machine in nuclear reactor equipment |
| JP4544094B2 (en) * | 2005-08-17 | 2010-09-15 | 株式会社日立プラントテクノロジー | Powder collection method |
| ATE545136T1 (en) * | 2009-10-05 | 2012-02-15 | Linde Ag | METHOD FOR COLLECTING MATERIAL DURING DRY ICE BLASTING |
| CN202650578U (en) * | 2011-12-23 | 2013-01-02 | 核工业理化工程研究院华核新技术开发公司 | Mobile type nuclear-biochemical air and liquid waste treatment device |
| JP6328944B2 (en) * | 2013-02-13 | 2018-05-23 | 大成建設株式会社 | Dry ice blasting equipment |
| CN104269200B (en) * | 2014-09-18 | 2016-11-30 | 中国人民解放军第五三七医院 | Movable type disappears and washes bed |
| CN205302967U (en) * | 2015-11-25 | 2016-06-08 | 西南科技大学 | On --spot emergency treatment device of radioactive contamination soil |
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