CN109709008A - Intercepting and capturing and transposition experimental method of the high-temperature heating formula radioaerosol in plant - Google Patents
Intercepting and capturing and transposition experimental method of the high-temperature heating formula radioaerosol in plant Download PDFInfo
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- CN109709008A CN109709008A CN201811466210.4A CN201811466210A CN109709008A CN 109709008 A CN109709008 A CN 109709008A CN 201811466210 A CN201811466210 A CN 201811466210A CN 109709008 A CN109709008 A CN 109709008A
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Abstract
The invention discloses a kind of high-temperature heating formula radioaerosol plant intercepting and capturing and transposition experimental method, method includes the following steps: S1, in laboratory generating radioactive aerosol particle under hot conditions；S2, the radioactive aerosol particle generated in above-mentioned steps S1 is collected；The radioactive aerosol particle collected in S3, step of transmitting S2；S4, radioactive aerosol particle realize that plant tests the intercepting and capturing of particulate in the sedimentation of plant；S5, radioaerosol gas remaining in sedimenting system is purified；Experimental plant is moved into phjytotron after S6, intercepting and capturing experiment, completes plant to the transposition experimental study of particulate；The continuous spectrum aerosol that high temperature generates is deposited to plant by radioaerosol emission system by this experimental method, realizes generation, transmitting and the infall process of the simulation nuclear accident high-temperature aerosol under the controlled condition of laboratory.
Description
Technical field
The present invention relates to nuclear environment applied technical fields, and in particular to a kind of high-temperature heating formula radioaerosol is in plant
The intercepting and capturing and transposition experimental method of body.
Background technique
After the raising of Public environmental attitude, especially Fukushima, Japan nuclear accident, nuclear and radiation safety is widely noticed, core
The radioactive aerosol particle that accident generates under the high temperature conditions largely can be discharged into environment with airborne approach, high-temperature aerosol grain
The generation of son and its migration in the environment, sedimentation, the influence caused by environment become the emphasis of nuclear environment analogue technique research
One of, at present there is an urgent need to generate radioactivity high-temperature aerosol particle in laboratory and be used for the sedimentation experiment in plant,
Its intercepting and capturing and transposition behavior on plant is studied, searches out one kind in this context in laboratory controlled range internal model nucleoid thing
Therefore the formation of lower high-temperature aerosol particle, study its sedimentation of environment plant, transposition and metastatic rule technical solution just
It is particularly important.
Summary of the invention
In view of the deficiencies in the prior art, the purpose of the present invention is to provide a kind of high-temperature heating formula radioactivity gas is molten
For glue in the intercepting and capturing and transposition experimental method of plant, the intercepting and capturing of the plant and transposition experimental method may be implemented can in laboratory
Generation, transmitting and the infall process of simulation nuclear accident high-temperature aerosol under the conditions of control are the production of researching high-temperature particulate
Raw migration in the environment, sedimentation transposition rule provide basis.
To achieve the above object, The technical solution adopted by the invention is as follows:
Intercepting and capturing and transposition experimental method of the high-temperature heating formula radioaerosol in plant, comprising the following steps:
S1, radioactive aerosol particle is generated under hot conditions in laboratory；
S2, the radioactive aerosol particle generated in above-mentioned steps S1 is collected；
The radioactive aerosol particle collected in S3, step of transmitting S2；
S4, radioactive aerosol particle plant sedimentation；Realize that plant tests the intercepting and capturing of particulate；
S5, after intercepting and capturing experiment, radioactive aerosol particle remaining in sedimenting system is purified；
Experimental plant is moved into phjytotron after S6, experiment, plant is completed and the transposition of particulate is tested
Research.
Further, method radioactive aerosol particle being collected in step s 2 are as follows: high temperature generates in laboratory
Particulate be collected, take out and be centrally disposed the graphite crucible of aperture, collect the particulate on crucible, into
And complete the collection operation of particulate.
Further, the radioactivity experimental material in step sl for generating radioactive aerosol particle is caesium, wherein using
In the temperature range that it is heated be 0-1500 DEG C.
Further, the radioactivity experimental material in step sl for generating radioactive aerosol particle is strontium, wherein using
In the temperature range that it is heated be 1500-2000 DEG C.
Further, the radioactivity experimental material in step sl for generating radioactive aerosol particle is cobalt, wherein using
In the temperature range that it is heated be 2000-3000 DEG C.
Compared with prior art, the advantageous effects that this programme has are as follows: this experimental method passes through heating radiogold
Belong to material distil forms particulate at high temperature, then recycling radioactivity high-temperature aerosol particle, and by above-mentioned radioactivity
High-temperature aerosol particle imports on the plant in settling tank, carries out organism and intercepts and captures and transposition experiment.This method generates high temperature
Continuous spectrum aerosol plant is deposited to by radioaerosol emission system, realize under the controlled condition of laboratory
Simulate generation, transmitting and the infall process of nuclear accident high-temperature aerosol.
Detailed description of the invention
Fig. 1 is that high temperature heated type radioaerosol of the present invention is shown in the intercepting and capturing of plant and transposition experimental method process
It is intended to.
Specific embodiment
The present invention is described in further detail with specific embodiment with reference to the accompanying drawings of the specification.
This programme is that the radioactive aerosol particle generated under the high temperature conditions for nuclear accident is largely released with airborne approach
It is put into environment, the generation to high-temperature aerosol particle and its migration in the environment, sedimentation is needed in this process, to environment
Caused by influence under the premise of needing the background studied, and then a kind of high-temperature heating formula radioaerosol proposed is in plant
Intercepting and capturing and transposition experimental method, the mould under the controlled condition of laboratory may be implemented in the intercepting and capturing of the plant and transposition experimental method
Generation, transmitting and the infall process of nucleoid accident high-temperature aerosol, for the generation of researching high-temperature particulate and its in environment
In migration, sedimentation and transposition rule basis is provided.
It referring to figure 1, is the high-temperature heating formula radioaerosol in the present embodiment in intercepting and capturing of plant and easy
Position experimental method flow diagram.High-temperature heating formula radioaerosol in the present embodiment is real in the intercepting and capturing and transposition of plant
Proved recipe method, comprising the following steps:
S1, radioactive aerosol particle is generated under hot conditions in laboratory；
In actual experiment, according to the difference of research radioactive aerosol particle, selection is accordingly for generating radioactivity
The radioactivity material of particle.After having selected radioactivity experimental material, selected according to the own physical property of the radioactive material
Corresponding heating temperature can generate corresponding radioaerosol to reach the radioactivity experimental material under the heating temperature
Particle；
S2, the radioactive aerosol particle generated in above-mentioned steps S1 is collected；
For the radioactive metal material selected in above-mentioned steps S1 under high temperature action, distillation forms corresponding radioactivity
Particulate, radioactive aerosol particle is collected after being formed by using black-fead crucible collection system, and then completes radioactivity
The collection work of particulate；
The radioactive aerosol particle collected in S3, step of transmitting S2；
After completing the radioactive aerosol particle collection work to generation in step s 2, the radioactivity that will be collected into is needed
Particulate is emitted, to deposit on the plant of experiment.Specifically, the radioactivity gas being collected into step s 2
After sol particles, since radioactive aerosol particle at this time is also in the condition of high temperature, it is therefore desirable to cool down to it, namely
After the radioactive aerosol particle being located in black-fead crucible is cooled to less than 30 DEG C, the condensed matter in black-fead crucible is recycled,
Then emitted by aerosol emission system, to deposit on the plant of experiment；
S4, radioactive aerosol particle settle in plant, realize that plant tests the intercepting and capturing of particulate；
It needs importing to drop on the plant of experiment to the radioactive aerosol particle emitted in step s3, wherein
Radioactive aerosol particle its during being deposited to experimental plant body, need to be formed by view of different radioactive substances
Its sedimentation time of radioactive aerosol particle is different, to guarantee that radioactive aerosol particle can fully be deposited to experimental plant
On body, reach requirement of experiment；
S5, after intercepting and capturing, radioactive aerosol particle remaining in sedimenting system is purified；
Radioactive aerosol particle drops on experimental plant body in step s 4, completes plant and intercepts and captures experiment, is cutting
After obtaining, the ventilating system by installing highly effective air filter for molten filters residual activity aerosol gas in sedimenting system,
Qualified discharge；
Experimental plant is moved into phjytotron after S6, experiment, plant is completed and the transposition of particulate is tested
Research.
By residual activity aerosol gas in settling tank in S5, discharge is clean, at this moment can be by plant in settling tank
Phjytotron continued growth is moved into harvesting, studies transposition situation of the particulate in plant of plant intercepting and capturing.
During whole operation, above-mentioned radioactivity high-temperature aerosol recovery method: returned using radioactivity high-temperature aerosol
The particulate that receipts system recycling high-temperature heating generates, back-off graphite crucible is taken out when recycling, the substance in crucible is cleared up
Recycling.Crucible bottom center opening is configured with bottom plate, does not have sublimate and fall off.
Simple illustration is done to entire intercepting and capturing and transposition experimental method below with reference to specific embodiment:
Between opening negative pressure, pressure difference is stablized in 98Pa, can operate high-temperature heating formula radioaerosol device.It is selected to put
Penetrating property experimental material, different materials correspond to different heating temperatures.
| Experimental material | Boiling point (DEG C) | High temperature furnace heating temperature (DEG C) |
| Cs | 671 | 0-1500 |
| Sr | 1384 | 1500-2000 |
| Co | 2870 | 2000-3000 |
Table one
Table 1 lists part Experiment material and corresponding heating temperature section, and selected material is put into intermediate frequency high temperature furnace
In interior heating crucible, crucible recovery system is in place, closure high-temperature heating formula radioaerosol generates system, according to
Between the setting of radioactivity experimental material property increases warm area, high temperature furnace temperature is adjustable in 1050~3000 DEG C of ranges, can quickly rise
Temperature heating.Heating rate: 1500 DEG C or less heating rates up to 100 DEG C/min, 1500~2000 DEG C of heating rates up to 70 DEG C/
Min, 2000~3000 DEG C of heating rates are up to 50 DEG C/min；Temperature-controlled precision ± 2 DEG C.Metallic element distils form gas at high temperature
Sol particles are collected by black-fead crucible collection system at the top of furnace body.After cooling, condensed matter in crucible is recycled, it is molten by gas
Glue emission system imports the sedimentation can system for being placed with experimental plant, determines the sedimentation time according to the different-grain diameter aerosol of generation
(sedimentation time 24-72h) carries out organism and intercepts and captures and transposition experiment.After sedimentation, by installing highly effective air filter for molten
Ventilating system filtering settling tank in residual activity aerosol gas, accomplish qualified discharge, by settling tank plant move into people
Work climatic chamber carries out next step operation.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technology
Within, then the present invention is also intended to include these modifications and variations.
Claims (5)
1. being heated at high temperature formula radioaerosol in the intercepting and capturing and transposition experimental method of plant, which is characterized in that including following
Step:
S1, radioactive aerosol particle is generated under hot conditions in laboratory；
S2, the radioactive aerosol particle generated in above-mentioned steps S1 is collected；
The radioactive aerosol particle collected in S3, step of transmitting S2；
S4, radioactive aerosol particle plant sedimentation；Realize that plant tests the intercepting and capturing of particulate；
S5, after intercepting and capturing experiment, radioaerosol gas remaining in sedimenting system is purified；
Experimental plant is moved into phjytotron after S6, experiment, completes plant to the transposition experimental study of particulate.
2. high-temperature heating formula radioaerosol according to claim 1 is in the intercepting and capturing and transposition experimental method of plant,
It is characterized by: the method being collected in step s 2 to radioactive aerosol particle are as follows: high temperature generates in laboratory
Particulate is collected, and taking-up is placed on the graphite crucible that there is aperture at high-temperature smelting pot center, collects the aerosol on crucible
Particle, and then complete the collection operation of particulate.
3. intercepting and capturing and transposition experiment side of the high-temperature heating formula radioaerosol according to claim 1 or 2 in plant
Method, it is characterised in that: the radioactivity experimental material for generating radioactive aerosol particle is caesium in step sl, wherein being used for
The temperature range heated to it is 0-1500 DEG C.
4. intercepting and capturing and transposition experiment side of the high-temperature heating formula radioaerosol according to claim 1 or 2 in plant
Method, it is characterised in that: the radioactivity experimental material for generating radioactive aerosol particle is strontium in step sl, wherein being used for
The temperature range heated to it is 1500-2000 DEG C.
5. intercepting and capturing and transposition experiment side of the high-temperature heating formula radioaerosol according to claim 1 or 2 in plant
Method, it is characterised in that: the radioactivity experimental material for generating radioactive aerosol particle is cobalt in step sl, wherein being used for
The temperature range heated to it is 2000-3000 DEG C.
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Application publication date: 20190503 |