CN113701812A - Airborne nuclide environment migration simulation test device - Google Patents
Airborne nuclide environment migration simulation test device Download PDFInfo
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- CN113701812A CN113701812A CN202110975296.9A CN202110975296A CN113701812A CN 113701812 A CN113701812 A CN 113701812A CN 202110975296 A CN202110975296 A CN 202110975296A CN 113701812 A CN113701812 A CN 113701812A
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- 238000012360 testing method Methods 0.000 title claims abstract description 38
- 238000004088 simulation Methods 0.000 title claims abstract description 29
- 238000013508 migration Methods 0.000 title claims abstract description 27
- 230000005012 migration Effects 0.000 title claims abstract description 27
- 239000002689 soil Substances 0.000 claims abstract description 28
- 230000007613 environmental effect Effects 0.000 claims abstract description 19
- 238000012544 monitoring process Methods 0.000 claims abstract description 15
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 20
- 230000002262 irrigation Effects 0.000 claims description 20
- 238000003973 irrigation Methods 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 14
- YZCKVEUIGOORGS-NJFSPNSNSA-N Tritium Chemical compound [3H] YZCKVEUIGOORGS-NJFSPNSNSA-N 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 9
- 238000005286 illumination Methods 0.000 claims description 8
- 229910052722 tritium Inorganic materials 0.000 claims description 8
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 239000001569 carbon dioxide Substances 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 6
- -1 polyethylene Polymers 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 239000002351 wastewater Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-NJFSPNSNSA-N Carbon-14 Chemical compound [14C] OKTJSMMVPCPJKN-NJFSPNSNSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 239000002985 plastic film Substances 0.000 claims description 3
- 229920006255 plastic film Polymers 0.000 claims description 3
- 239000002775 capsule Substances 0.000 claims 3
- 238000004891 communication Methods 0.000 claims 2
- 238000012546 transfer Methods 0.000 abstract description 11
- 238000011160 research Methods 0.000 abstract description 8
- 230000005611 electricity Effects 0.000 abstract description 5
- 230000005855 radiation Effects 0.000 abstract description 4
- 238000002474 experimental method Methods 0.000 abstract description 3
- 108010066057 cabin-1 Proteins 0.000 description 20
- 230000002285 radioactive effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
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- 235000013305 food Nutrition 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000007791 dehumidification Methods 0.000 description 3
- 235000013399 edible fruits Nutrition 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000005587 bubbling Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- XLYOFNOQVPJJNP-PWCQTSIFSA-N Tritiated water Chemical compound [3H]O[3H] XLYOFNOQVPJJNP-PWCQTSIFSA-N 0.000 description 1
- 230000003698 anagen phase Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000037406 food intake Effects 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- XLYOFNOQVPJJNP-MNYXATJNSA-N hydrogen tritium oxide Chemical compound [3H]O XLYOFNOQVPJJNP-MNYXATJNSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000941 radioactive substance Substances 0.000 description 1
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- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses an airborne nuclide environmental migration simulation test device which comprises a sealed bin, an environmental condition online monitoring system, a gas circulation assembly and a power supply control cabinet, wherein after crops are put into the sealed bin, the airborne nuclide can be put into the sealed bin through a source item release hole, the airborne nuclide is subjected to ecological transfer in crop-soil in the sealed bin, and the nuclide is transferred to the crops from the air and transferred to the soil; the environmental condition on-line monitoring system can monitor the environment in the sealed bin in real time and provides basic guarantee for the smooth ecological transfer test of the airborne nuclide; and the pipeline fan and the fan of gas circulation subassembly are connected with the power control cabinet electricity, realize gas circulation's automatic control, and the staff need not get into the operation in the sealed storehouse, have reduced staff's radiation dose by a wide margin, and after the experiment, can gather crops different position samples and do the judgement research, carry out diversified, comprehensive airborne nuclide ecological transfer experimental research.
Description
Technical Field
The invention relates to the technical field of nuclide measurement, in particular to a simulation test device for migration of airborne nuclide environments.
Background
The transfer parameter of the key airborne nuclide in a key path, namely an ingestion path, is an important component for evaluating the radiation environment influence of the nuclear facility,14c and tritium are key nuclides in the gaseous effluent of nuclear facilities, where14C is mainly based on14CO2In the form of tritium, which is present mainly as tritiated water (HTO). During the operation of nuclear facilities, small amounts of radionuclides are released into the environment in gaseous form and deposit on the surface of crops or soil, where nuclide deposition is the major route of human food chain contamination during the growth phase of crops. Ecological transfer of airborne nuclides in crops is an important link of nuclear environment evaluation, and relevant ecological transfer parameters are key data of irradiation dose estimation in the public food chain. At present, airborne nuclides in China have the defects of simple pollution mode, short pollution time, low simulation degree and the like in the ecological transfer test research process of crops, and the research result has great uncertainty.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a simulation test device for environmental migration of airborne nuclides with higher simulation degree.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
in order to solve the technical problem, the invention provides a simulation test device for migration of airborne nuclide environment, which comprises:
the sealed bin is provided with a source item release hole, a circulating air inlet hole and a circulating air outlet hole;
the environmental condition online monitoring system is arranged in the sealed cabin and comprises a data acquisition measurement and control terminal and a sensor group, wherein the data acquisition measurement and control terminal is electrically connected with the sensor group;
the gas circulation assembly comprises a pipeline fan and a fan, the pipeline fan is arranged at the bottom of the sealed cabin, and the fan is arranged at the top of the sealed cabin;
and the power supply control cabinet is arranged outside the sealed cabin and is electrically connected with the environmental condition online monitoring system and the gas circulation assembly.
Further, airborne nuclide environment migration simulation test device still includes drips irrigation the part, drips irrigation the part including driping irrigation pipe, waste water collection pipe and water pump, and the water pump setting is in the outside of sealed storehouse, and the water pump is connected with the power control cabinet electricity, and the one end of driping irrigation the pipe is connected to the play water end of water pump, and the other end setting of driping irrigation the pipe is in the inside of sealed storehouse, the inside of waste water collection pipe one end intercommunication sealed storehouse.
Further, airborne nuclide environment migration simulation test device still includes air cleaner, and air cleaner installs in the outside of sealed storehouse, and air cleaner is connected with the power control cabinet electricity, and air cleaner passes through the inside of pipeline intercommunication sealed storehouse.
Further, the airborne nuclide environment migration simulation test device further comprises an air dehumidifier, the air dehumidifier is installed inside the sealed bin, and the air dehumidifier is electrically connected with the power control cabinet.
Further, the airborne nuclide environment migration simulation test device also comprises CO2Reactor, CO2The reactor is communicated with the source discharge hole through a polyethylene pipe.
Further, the airborne nuclide environment migration simulation test device also comprises a sampler, and the sampler is communicated with the circulating air inlet and the circulating air outlet simultaneously.
Further, the sampler is a GT-A type air tritium sampler or a GT-A type air carbon-14 sampler.
Further, the sensor group comprises an air/temperature/humidity and pressure four-in-one sensor, a carbon dioxide detection sensor, an illumination intensity sensor and a soil temperature/humidity/soil EC value three-in-one sensor.
Further, the sensor group comprises an air sensor, a temperature sensor, a humidity sensor, a pressure sensor, a carbon dioxide detection sensor, an illumination intensity sensor, a soil temperature sensor, a soil humidity sensor and a soil EC value sensor.
Further, the sealed bin comprises a frame and a bin wall, the frame is made of bridge-cut aluminum, the bin wall is made of glass, and rubber, a polyethylene plastic film and an impermeable coating are laid at the bottom of the sealed bin.
The invention has the beneficial effects that: after the crops are placed in the simulation test device for the environmental migration of the airborne nuclide, the airborne nuclide can be put into the sealed bin through the source item release hole, the airborne nuclide is ecologically transferred in the soil of the crops in the sealed bin, and the nuclide is transferred to leaves and fruits of the crops from the air and is transferred to the soil; the data acquisition, measurement and control terminal and the sensor group of the environmental condition online monitoring system can monitor the environment in the sealed bin in real time, and provide basic guarantee for the smooth implementation of the airborne nuclide ecological transfer test; and the pipeline fan and the fan of gas circulation subassembly are connected with the power control cabinet electricity, realize gas circulation's automatic control, and the staff need not get into the operation in the sealed storehouse, have reduced staff's radiation dose by a wide margin, and after the experiment, can gather crops different position samples and do the judgement research, carry out diversified, comprehensive airborne nuclide ecological transfer experimental research.
Drawings
Fig. 1 is a schematic structural diagram of a simulation test apparatus for environmental migration of airborne nuclides in an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
Example one
Referring to fig. 1, the airborne nuclide environmental migration simulation test device of the present embodiment includes a sealed bin 1, an environmental condition online monitoring system 2, a gas circulation component 3, a drip irrigation component 4, and an air filterFilter 5, air dehumidifier 6, CO2A reactor 7, a sampler 8 and a power control cabinet 9.
Wherein, the sealed cabin 1 of this embodiment is provided with a source item release hole 11, a circulation air inlet hole 12 and a circulation air outlet hole 13; source item release holes 11 for CO connection2Reactor 7, CO2The reactor 7 is capable of producing CO with nuclides2So that the nuclide is sent to the inside of the sealed bin 1 and absorbed by the crops in the sealed bin 1. Notably, CO2The reactor 7 is communicated with the source discharge hole 11 through a polyethylene pipe. Of course, in addition to the CO of the present embodiment2Besides the reactor 7, other reactors 7 capable of generating airborne nuclides can be communicated with the source release hole 11.
Further, the environmental condition on-line monitoring system 2 of this embodiment is installed inside the sealed cabin 1, and includes a data acquisition measurement and control terminal 21 and a sensor group 22, and the data acquisition measurement and control terminal 21 is electrically connected with the sensor group 22. The sensor group 22 includes an air/temperature/humidity and pressure four-in-one sensor, a carbon dioxide detection sensor, an illumination intensity sensor, and a soil temperature/humidity/soil EC value three-in-one sensor. Of course, in other embodiments, separate sensors may be used for data monitoring, such as sensor group 22 including air sensors, temperature sensors, humidity sensors, pressure sensors, carbon dioxide detection sensors, light intensity sensors, soil temperature sensors, soil humidity sensors, and soil EC value sensors. The environmental condition online monitoring system 2 can measure parameters such as air humidity, temperature, CO2 concentration, illumination intensity, air pressure, soil water content, soil humidity and soil temperature in the sealed cabin 1 on line in real time.
Further, the gas circulation assembly 3 of the present embodiment includes two duct fans 31 and two fans 32, the two duct fans 31 are installed at the opposite corners of the bottom of the hermetic container 1, and the two fans 32 are installed at the top of the hermetic container 1; the combined action of the pipeline fan 31 and the fan 32 can mix the gas in the sealed bin 1, so that nuclides are uniformly distributed and are convenient for crops to absorb.
Further, the power control cabinet 9 of the embodiment is installed outside the sealed cabin 1, the power control cabinet 9 is electrically connected with the environmental condition online monitoring system 2 and the gas circulation component 3, and the power control cabinet 9 is used for controlling actions of the environmental condition online monitoring system 2 and the gas circulation component 3.
Further, the drip irrigation component 4 of this embodiment includes a drip irrigation pipe 41, a waste water collecting pipe 42 and a water pump 43, the water pump 43 is disposed outside the sealed cabin 1, the water pump 43 is electrically connected to the power control cabinet 9, the water outlet end of the water pump 43 is connected to one end of the drip irrigation pipe 41, the other end of the drip irrigation pipe 41 is disposed inside the sealed cabin 1, and one end of the waste water collecting pipe 42 is communicated with the inside of the sealed cabin 1. In use, the other end of the drip irrigation pipe 41 may be directly inserted into the soil adjacent the crop.
Further, air cleaner 5 is installed in the outside of sealed storehouse 1, and air cleaner 5 is connected with power control cabinet 9 electricity, and air cleaner 5 passes through the inside of pipeline intercommunication sealed storehouse 1. In practical use, the airborne nuclide environment migration simulation test device of the present embodiment is placed inside an artificial climate chamber, and therefore, the air filter 5 is communicated with the artificial climate chamber, so that decontamination and discharge of gas in the cabin are realized by connecting a pipeline inside the artificial climate chamber and a main ventilation pipeline leading to the outside. After the sealed pollution test is finished, the sealed cabin 1 is connected with an air filter 5, air is filtered and then discharged into a filtering system of the artificial climate chamber, and the air is discharged after secondary filtering.
Further, an air dehumidifier 6 is installed inside the sealed bin 1, and the air dehumidifier 6 is electrically connected with the power control cabinet 9. The air dehumidifier 6 can control the humidity in the sealed bin 1 in the test process and can also play a role in tritium removal, the air dehumidifier 6 realizes the timing control outside the sealed bin 1, and the timing control of the dehumidification capacity and the dehumidification time is carried out as required.
Further, the sampler 8 of the present embodiment communicates with both the circulation intake hole 12 and the circulation exhaust hole 13. The sampler 8 is a GT-A type air tritium sampler 8 or a GT-A type air carbon-14 sampler 8.
Further, the sealed bin 1 comprises a frame and a bin wall, the frame is made of bridge-cut aluminum, the bin wall is made of glass, and rubber, a polyethylene plastic film and an impermeable coating are laid at the bottom of the sealed bin 1.
The airborne nuclide environment migration simulation test device of the embodiment specifically comprises the following steps:
the first step is as follows: ventilating the sealed cabin 1; and starting the gas circulation component 3, blowing the gas in the sealed cabin 1, and opening a circulation air inlet hole 12 and a circulation air outlet hole 13 on the sealed cabin 1, so that new air is injected into the sealed cabin 1.
The second step is that: test crops are put in the sealed cabin 1, the sealed cabin 1 is numbered from east to west as a, b, c, d, e and f, and is numbered from north to south as 1, 2, 3, 4, 5 and 6, and the drip irrigation pipes 41 with the same number are inserted into corresponding crop pots as the crop positioning in the sealed cabin 1. And closing a bin gate of the sealed bin 1, and a circulating air inlet hole 12 and a circulating air outlet hole 13 to enter a sealing test link of the sealed bin 1.
The third step: the temperature and the illumination intensity of the artificial climate chamber are set according to the growth requirement and the integral test requirement of crops, and the temperature and the illumination intensity of the sealed cabin 1 are indirectly controlled. And simultaneously starting the environmental condition online monitoring system 2 of the sealed cabin 1.
The fourth step: in CO2Na is added into a reactor 72CO3The radioactive solution is used for the preparation of the radioactive solution,14CO2is released by Na2CO3The solution reacts with sulfuric acid to produce CO2To ensure14C is released as completely as possible, and Na is stabilized at a certain concentration2CO3Diluting the radioactive source with a solution, and reacting with excess sulfuric acid to form14CO2And CO2The generated gas is introduced into the sealed cabin 1 to carry out the experiment.
The fifth step: a compressed air type atomizer is used as a source item emitter, and air-borne tritiated water is sprayed into the sealed cabin 1 through the source item release hole 11.
And a sixth step: and opening the gas circulation component 3 in the sealed bin 1 to enable the gas in the sealed bin 1 to be in a uniformly mixed state all the time, and simultaneously enabling the airborne nuclide to be ecologically transferred in the crop-soil in the sealed bin 1, so that the nuclide is transferred to leaves and fruits of crops from the air and is transferred to the soil.
The seventh step: and (3) collecting a sample of the radioactive nuclide in the air of the sealed bin 1, and analyzing and measuring the change condition of the activity concentration of the radioactive nuclide in the air. According to the analysis method of tritium in water (GB12375-90), a bubbling method tritium sampler 8 is adopted to collect HTO in air, and distilled water is used as a collecting medium. According to the method for sampling and measuring carbon 14C in air (EJ/T1008-1996), a C-14 sampler 8 for capturing C-14 in air by a bubbling method is adopted, and a 1mol/L NaOH solution is used as a capturing medium.
Eighth step: after the sealed cabin 1 is sealed, the cabin is dehumidified, the humidity in the cabin is reduced, and the air dehumidifier 6 is opened for dehumidification for 12 hours.
The ninth step: when the crops need to be irrigated, the drip irrigation component 4 is turned on, the switch of each drip irrigation pipe 41 is turned on, the water pump 43 is turned on to pump water, and drip irrigation is started.
The tenth step: after the concentration of the radioactive nuclide in the sealed bin 1 is reduced to the environmental level and the radioactive nuclide in the air is ensured to be lower than the emission limit value, experimenters enter the sealed bin 1 to sample and analyze experimental crops. The determination of 3H and 14C in crops is based on the determination of radioactive substance hydrogen-3 in national food standard for food safety (GB14883.2-2016) and the sampling and determination method of carbon 14C in air (EJ/T1008-1996).
According to the airborne nuclide environment migration simulation test device, after crops are placed in the device, the airborne nuclides can be placed into the sealed bin 1 through the source item release holes 11, the airborne nuclides are ecologically transferred in the soil of the crops in the sealed bin 1, and the nuclides are transferred to leaves and fruits of the crops from the air and are transferred to the soil; the data acquisition, measurement and control terminal 21 and the sensor group 22 of the environmental condition online monitoring system 2 can monitor the environment in the sealed bin 1 in real time, and provide basic guarantee for the smooth implementation of the airborne nuclide ecological transfer test; and the pipeline fan 31 and the fan 32 of the gas circulation component 3 are electrically connected with the power control cabinet 9, so that the automatic control of gas circulation is realized, workers do not need to enter the sealed bin 1 for operation, the radiation dose of the workers is greatly reduced, samples at different parts of crops can be collected for judgment and research after the test is finished, and multi-azimuth and comprehensive airborne nuclide ecological transfer test research is carried out.
The device of the present invention is not limited to the embodiments of the specific embodiments, and other embodiments can be derived by those skilled in the art from the technical solutions of the present invention, and the device of the present invention also belongs to the technical innovation and protection scope of the present invention.
Claims (10)
1. The utility model provides a airborne nuclide environment migration simulation test device which characterized in that includes:
the sealed bin is provided with a source item release hole, a circulating air inlet hole and a circulating air outlet hole;
the environment condition online monitoring system is arranged inside the sealed cabin and comprises a data acquisition measurement and control terminal and a sensor group, and the data acquisition measurement and control terminal is electrically connected with the sensor group;
the gas circulation assembly comprises a pipeline fan and a fan, the pipeline fan is arranged at the bottom of the sealed cabin, and the fan is arranged at the top of the sealed cabin;
and the power supply control cabinet is arranged outside the sealed cabin and is electrically connected with the environmental condition online monitoring system and the gas circulation assembly.
2. The airborne nuclide environment migration simulation test device of claim 1, further comprising a drip irrigation component, wherein the drip irrigation component comprises a drip irrigation pipe, a wastewater collection pipe and a water pump, the water pump is disposed outside the sealed cabin, the water pump is electrically connected with the power control cabinet, a water outlet end of the water pump is connected with one end of the drip irrigation pipe, the other end of the drip irrigation pipe is disposed inside the sealed cabin, and one end of the wastewater collection pipe is communicated with the inside of the sealed cabin.
3. The airborne nuclide environment migration simulation test apparatus as in claim 1, further comprising an air filter, the air filter being mounted outside the capsule, the air filter being electrically connected to the power control cabinet, the air filter being in communication with an interior of the capsule through a conduit.
4. The airborne nuclide environment migration simulation test apparatus as in claim 1, further comprising an air dehumidifier, the air dehumidifier being mounted inside the capsule, the air dehumidifier being electrically connected to the power control cabinet.
5. The airborne nuclide environment migration simulation test apparatus as in claim 1, further comprising CO2Reactor, said CO2The reactor is communicated with the source releasing hole through a polyethylene pipe.
6. The airborne nuclide environment migration simulation test apparatus as in claim 1, further comprising a sampler, the sampler being in simultaneous communication with the circulation inlet aperture and the circulation outlet aperture.
7. The airborne nuclide environment migration simulation test apparatus as in claim 6, wherein the sampler is a GT-A air tritium sampler or a GT-A air carbon-14 sampler.
8. The airborne nuclide environment migration simulation test apparatus as in any one of claims 1 to 7, wherein the sensor group comprises an air/temperature/humidity and pressure four-in-one sensor, a carbon dioxide detection sensor, an illumination intensity sensor, and a soil temperature/humidity/soil EC value three-in-one sensor.
9. The airborne nuclide environment migration simulation test apparatus as in any one of claims 1 to 7, wherein the sensor group comprises an air sensor, a temperature sensor, a humidity sensor, a pressure sensor, a carbon dioxide detection sensor, an illumination intensity sensor, a soil temperature sensor, a soil humidity sensor, and a soil EC value sensor.
10. The airborne nuclide environment migration simulation test apparatus as in any one of claims 1 to 7, wherein the sealed bin comprises a frame and a bin wall, the frame is made of bridge-cut aluminum, the bin wall is made of glass, and rubber, a polyethylene plastic film and an impermeable coating are laid at the bottom of the sealed bin.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116025341A (en) * | 2022-12-31 | 2023-04-28 | 浙江大学 | System and method for monitoring gas migration path in hydrate exploitation process |
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| Title |
|---|
| 韩宝华;郭书扬;张晟;张超;曹少飞;王慧娟;: "降雨途径中农作物对核素的截获行为研究现状" * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116025341A (en) * | 2022-12-31 | 2023-04-28 | 浙江大学 | System and method for monitoring gas migration path in hydrate exploitation process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113701812B (en) | 2023-06-16 |
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