CN109239760A - Radionuclide On-site sampling concentration detection device in a kind of seawater - Google Patents
Radionuclide On-site sampling concentration detection device in a kind of seawater Download PDFInfo
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- CN109239760A CN109239760A CN201810963515.XA CN201810963515A CN109239760A CN 109239760 A CN109239760 A CN 109239760A CN 201810963515 A CN201810963515 A CN 201810963515A CN 109239760 A CN109239760 A CN 109239760A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/167—Measuring radioactive content of objects, e.g. contamination
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Abstract
The present invention relates to radionuclide On-site sampling concentration detection devices in a kind of seawater.Present disclose provides a kind of artificial radionuclide On-site sampling concentration detection devices, including it is sequentially connected pump section, enriching apparatus part and detection device part, wherein, enriching apparatus includes shielded layer, liner, contaminant filter layer, nucleic enriched layer, the liner housing provided with shielding layer, water body to be detected is pumped part and is delivered in the liner, the contaminant filter layer through being mounted in liner, and the enrichment of nucleic is carried out in nucleic enriched layer, the water in liner is emptied after enriching apparatus saturation, then nucleic detection is carried out by detection device.By way of taking and being first enriched with and detect again, enrichment detection is carried out under shielding environment, and effectively reducing background influences, reduces device detection limit；Meanwhile organically combining enriching apparatus and detection device, it is uniformly controlled by control unit, is not necessarily to manual intervention, effectively increases detection speed.
Description
Technical field
This disclosure relates to artificial radionuclide On-site sampling concentration in radionuclide detection field more particularly to a kind of seawater
Detection device.
Background technique
Fukushima nuclear accident in 2011 causes directly to pollute to marine environment, thus causes people to the wide of ocean radiation safety
General concern.China's nuclear industry is quickly grown, and is had in coastal area and is largely currently running or in the nuclear power station built.At present in water body
The detection method of radionuclide mainly has the underwater measurement of gamma spectrum on the spot, conventional marine sampling and lab analysis and scene rich
Collection detection.After nuclear leakage occurs for sea, radionuclide is spread rapidly in the seawater.Underwater gamma spectrum measurement method background on the spot
Height, detection limit are higher, cannot achieve to the quick detection of low concentration radionuclide and long term monitoring.Conventional marine sampling is simultaneously transported
Laboratory analysis methodologies are returned, needs to collect a large amount of seawater samples and transports laboratory back, process is cumbersome, time-consuming, is not suitable for meeting an urgent need
Occasion.And at present there are the disadvantages such as enrichment target species are single, bioaccumulation efficiency is low in On-site sampling concentration material.Therefore, research difference is put
Enrichment while penetrating property nucleic, and how to improve enrichment detection efficiency and be of great significance.
Summary of the invention
(1) technical problems to be solved
Present disclose provides artificial radionuclide On-site sampling concentration detection device in a kind of seawater, at least partly solve with
The technical issues of upper proposed.
(2) technical solution
According to one aspect of the disclosure, a kind of artificial radionuclide On-site sampling concentration detection device is provided, including according to
The pumping section of secondary connection, enriching apparatus part and detection device part, wherein enriching apparatus includes shielded layer, liner, miscellaneous
Matter filter layer, nucleic enriched layer, the liner housing provided with shielding layer, water body to be detected are pumped part and are delivered to the liner
In, the contaminant filter layer through being mounted in liner, and the enrichment of nucleic is carried out in the nucleic enriched layer, to enriching apparatus
The water in liner is emptied after saturation, then nucleic detection is carried out by detection device.
In some embodiments, in the enriching apparatus, shielded layer includes lead screen layer and copper shield, the copper shield
Layer is arranged inside lead screen layer, and lead screen layer and copper shield pass through two parts up and down and assemble, and liner passes through upper
Lower two parts assemble, and lower part is connected with outlet pipe, and the lead screen layer has with copper shield lower part for accommodating
The opening of outlet pipe.
In some embodiments, the contaminant filter layer includes the first contaminant filter layer, the second contaminant filter layer, is used for
Filter the large granular impurity in seawater；Nucleic enriched layer includes the first nucleic enriched layer, the second nucleic enriched layer, is had using diaphragm type
There is the nanocomposite of nucleic absorption enrichment function, realizes to a variety of nucleic while efficient absorption.
In some embodiments, the first contaminant filter layer includes sealing ring, is connect by screw thread with liner top seal；The
Two impurity filter layers, the first nucleic enriched layer and the second nucleic enriched layer are identical as the first contaminant filter layer contour structures, and second
Nucleic enriched layer is connect with liner lower seal.
In some embodiments, described pump section includes: water pump filter, for filtering off large volume impurity；First into
Water pipe is connected to the water pump filter, water pump, and import is connected to first water inlet pipe, contains radioactivity for extracting
The water body of nucleic；Second water inlet pipe, is connected to the outlet of water pump, and is connected to enriching apparatus import.
In some embodiments, first flowmeter is installed on the second water inlet pipe, flows into enrichment dress for detecting and recording
The flow velocity and volume for the seawater set；Second flowmeter is installed, for detecting and recording from enriching apparatus outflow on outlet pipe
The flow velocity and volume of seawater.
In some embodiments, the control unit in detection device is by reading and handling first flowmeter and second flow
The data of meter adjust the pump power of water pump, ensure the bioaccumulation efficiency of enriching apparatus, when processing seawater bulk reaches target volume
Afterwards, control unit control water pump stops working.
In some embodiments, detection device includes: detector, passes through lead screen layer lower part and copper from enriching apparatus bottom
Shielded layer lower part, close to liner lower part, for being detected to nucleic；Signal processing circuit is connected to detector, for spy
The output signal for surveying device is handled；Control unit controls pump working, judges that starting is visited in enriching apparatus after seawater emptying
It surveys device and reads, the signal that analytical signal processing reason circuit obtains, and will test result and spread out of by signal output cable；Direct current
Source, for powering to device.
In some embodiments, detector bottom connection control box, the DC power supply, signal processing circuit and control are single
Member is mounted in control box.
In some embodiments, the detector be NaI (T1) scintillation crystal pop one's head in or mix cerium lanthanum bromide (LaBr3:
Ce) scintillation crystal probe or Ce:YAP scintillation crystal probe.
(3) beneficial effect
It can be seen from the above technical proposal that disclosure radionuclide On-site sampling concentration detection device at least has and following has
One of beneficial effect:
(1) by way of taking and being first enriched with and detect again, enrichment detection is carried out under shielding environment, effectively reduces this
Bottom influences, reduces device detection limit；
(2) contaminant filter layer and nucleic enriched layer are separate unit in enriching apparatus, can according to actual working environment with
Different quantity assemblings, effectively improves bioaccumulation efficiency；
(3) enriching apparatus and detection device are organically combined, is uniformly controlled by control unit, be not necessarily to manual intervention, effectively
Improve detection speed.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment of the present disclosure artificial radionuclide On-site sampling concentration detection device.
[embodiment of the present disclosure main element symbol description in attached drawing]
1. water pump filter；2. the first water inlet pipe
3. water pump；4. the second water inlet pipe
5. first flowmeter；6. lead screen layer top
7. copper shield top；8. liner top
9. the first contaminant filter layer；10. the second contaminant filter layer
11. the first nucleic enriched layer；12. the second nucleic enriched layer
13. second flowmeter；14. outlet pipe
15. liner lower part；16. copper shield lower part
17. lead screen layer lower part；18. detector
19. control unit；20. signal output cable
21. signal processing circuit；22. DC power supply
23. controlling box.
Specific embodiment
In order to overcome in existing water body, background present in the detection method of radionuclide is high, detection limit for height, is enriched with mesh
The problems such as nucleic is single, detection efficiency is low is marked, the present invention provides artificial radionuclide On-site sampling concentrations in a kind of seawater to detect
Device organically combines the enrichment process to nucleic a variety of in seawater, it can be achieved that radioactivity a variety of in seawater with detection process
Enrichment and on-site test while nucleic have extremely low background and detection limit, and bioaccumulation efficiency is high, and detection speed is fast.
For the purposes, technical schemes and advantages of the disclosure are more clearly understood, below in conjunction with specific embodiment, and reference
The disclosure is further described in attached drawing.
Disclosure some embodiments will be done referring to appended attached drawing in rear and more comprehensively describe to property, some of but not complete
The embodiment in portion will be shown.In fact, the various embodiments of the disclosure can be realized by many different forms, without that should be solved
It is interpreted as being limited to embodiments set forth herein；Relatively, these embodiments are provided so that the disclosure meets applicable legal requirement.
In addition, it is necessary to explanation: the device scope of application is not limited to the seawater containing radionuclide, to various nuclear pollutions
The polluted-water of water body, such as river, lake or pond etc. stands good.
In an exemplary embodiment of the disclosure, artificial radionuclide On-site sampling concentration inspection in a kind of seawater is provided
Survey device.Fig. 1 is the structural schematic diagram of embodiment of the present disclosure artificial radionuclide On-site sampling concentration detection device.As shown in Figure 1,
Disclosure artificial radionuclide On-site sampling concentration detection device include it is sequentially connected pump section, enriching apparatus part and inspection
Survey device part.
It wherein pumps section including water pump filter 1, the first water inlet pipe 2, water pump 3, the second water inlet pipe 4, first flowmeter
5；Enriching apparatus part includes lead screen layer top 6, copper shield top 7, liner top 8, the first contaminant filter layer 9, second
Contaminant filter layer 10, the first nucleic enriched layer 11, the second nucleic enriched layer 12, second flowmeter 13, liner lower part 14, copper shield
Layer lower part 15, lead screen layer lower part 16；Detection device part includes detector 18, control unit module 19, signal output cable
20, signal processing circuit 21, DC power supply 22 and control box 23.
The various pieces of the present embodiment artificial radionuclide On-site sampling concentration detection device are described in detail below.
It pumps section and is directly sampled from seawater, seawater successively passes through water pump filter 1, the first water inlet pipe 2, water pump 3,
After two water inlet pipes 4, first flowmeter 5, into enriching apparatus.Specifically, the water pump 3 pumped section contains radioactivity for extracting
The seawater of nucleic, water pump filter 1 are connected with the first water inlet pipe 2 with unit fixed on water pump suction, and seawater first passes around water pump filtering when extraction
Device 1 filters off large volume impurity.Second water inlet pipe 4 is connected to the outlet of water pump 3, and first flowmeter 5 is installed on the second water inlet pipe 4,
Between water pump and enriching apparatus, the flow velocity and volume of the seawater for detecting and recording inflow enriching apparatus.
Entire enriching apparatus is cylindrical structure.Device is equipped with directly from big marine sampling in enriching apparatus part
Lead screen layer, copper shield are for reducing background influence.First contaminant filter layer, the second contaminant filter layer, the enrichment of the first nucleic
Layer, the second nucleic enriched layer are mounted in liner.First contaminant filter layer 9, the second contaminant filter layer 10 are in filtering sea
Large granular impurity, improve nucleic concentration effect.First nucleic enriched layer 11, the second nucleic enriched layer 12 are filled with independent research
A kind of diaphragm type has the nanocomposite of nucleic absorption enrichment function, can a variety of nucleic be realized while be adsorbed.First is miscellaneous
Matter filter layer 9, the second contaminant filter layer 10, the first nucleic enriched layer 11 and the second nucleic enriched layer 12 are independent unit.
Lead screen layer, copper shield and liner are both designed as two parts up and down and assemble, it can be achieved that fast assembling-disassembling, replacement self-filtering
Layer.
Specifically, as shown in Figure 1, successively installing the first contaminant filter layer 9, the second contaminant filter layer in liner from top to bottom
10, the first nucleic enriched layer 11 and the second nucleic enriched layer 12.First contaminant filter layer 9 contains sealing ring, by screw thread with it is interior
Gallbladder top 8 is tightly connected.Second contaminant filter layer 10, the first nucleic enriched layer 11 and the second nucleic enriched layer 12 and the first impurity
9 structure of filter layer is identical, and the second nucleic enriched layer 12 is tightly connected with liner lower part 15.Copper shield is cased on the outside of cylindrical liner
Layer and lead screen layer, lead screen layer combine installation with lead screen layer lower part 17 by lead screen layer top 6, and lead screen layer passes through copper
Installation is combined with copper shield lower part 16 in shielded layer top 7.
The enriching apparatus can splice the contaminant filter layer and nucleic enriched layer of different number according to actual needs, and configuration is corresponding
The lead screen layer and copper shield of size can come into operation.Seawater after contaminant filter, nucleic absorption flows out of the water outlet pipe.
Second flowmeter 13 is attached to outlet pipe 14, for detecting and recording the flow velocity and volume of the seawater flowed out from enriching apparatus.?
The bottom of enriching apparatus there are the installation site of detection device, detection device can Fast Installation in the bottom of enriching apparatus.Work as richness
It when acquisition means reach saturation and stop working, pumps section and stops working, (first will be passed through after the seawater emptying in enriching apparatus
Flowmeter, the judgement of second flowmeter measurement data), detection device starts work.
Detection device part includes detector 18, control unit module 19, signal output cable 20, signal processing circuit
21, DC power supply 22 and control box 23.Specifically, the detector 18 using NaI (Tl) scintillation crystal probe or mixes cerium bromine
Change the scintillation crystals probe such as lanthanum (LaBr3:Ce) scintillation crystal probe or Ce:LuAP, Ce:GS0 or Ce:YAP.Detector 18 connects
It is connected to control box 23, signal processing circuit 21, control unit 19 and DC power supply 22 are installed in the control of 18 bottom of detector
In box 23.Detector 18 passes through lead screen layer lower part 17 and copper shield lower part 16 from enriching apparatus bottom, close to liner lower part
15。
Signal processing circuit 21 is connected to detector 18, handles for the output signal to detector 18；Control is single
Member 19 is transmitted for realizing the logic control of whole device and data, and specifically including the movement of control water pump 3, (switch, power are big
It is small), the data of first flowmeter 5 and second flowmeter 13 are read, the working condition of detector 18 is controlled, reads and analyze signal
The signal of processing circuit 21.DC power supply 22 provides power supply for whole system.Control unit 19 will by signal output cable 20
Detection data issues, can be according to the control of associated communication protocol development host computer realization device, reading data, data storage, data
The functions such as analysis.
When being detected, seawater passes through copper shield lower part 16 and lead screen layer lower part through 15 water outlet of liner lower part
17, it is flowed out after second flowmeter 13.Control unit 19 is by reading and handling first flowmeter 5 and second flowmeter 13
Data, the pump power of adjustable water pump 3, ensure the bioaccumulation efficiency of enriching apparatus.Processing seawater bulk reaches target volume
Afterwards, control unit 19 controls water pump 3 and stops working, (by reading 4 He of first flowmeter after seawater emptying in waiting enriching apparatus
The data of second flowmeter 13 judge), start detector 18 and read, the signal that analytical signal processing reason circuit 21 obtains, then
It will test result to spread out of by signal output cable 20.Exploitation host computer installs communications protocol realization reading data, data store,
The functions such as data analysis, additionally settable target seawater bulk, operating time etc., realization device automatically control.
So far, attached drawing is had been combined the embodiment of the present disclosure is described in detail.It should be noted that in attached drawing or saying
In bright book text, the implementation for not being painted or describing is form known to a person of ordinary skill in the art in technical field, and
It is not described in detail.In addition, the above-mentioned definition to each element and method be not limited in mentioning in embodiment it is various specific
Structure, shape or mode, those of ordinary skill in the art simply can be changed or be replaced to it.
It should also be noted that, the direction term mentioned in embodiment, for example, "upper", "lower", "front", "rear", " left side ",
" right side " etc. is only the direction with reference to attached drawing, not is used to limit the protection scope of the disclosure.Through attached drawing, identical element by
Same or similar appended drawing reference indicates.When may cause understanding of this disclosure and cause to obscure, conventional structure will be omitted
Or construction.
And the shape and size of each component do not reflect actual size and ratio in figure, and only illustrate the embodiment of the present disclosure
Content.In addition, in the claims, any reference symbol between parentheses should not be configured to the limit to claim
System.
Furthermore word "comprising" does not exclude the presence of element or step not listed in the claims.It is located in front of the element
Word "a" or "an" does not exclude the presence of multiple such elements.
The word of ordinal number such as " first ", " second ", " third " etc. used in specification and claim, with modification
Corresponding element, itself is not meant to that the element has any ordinal number, does not also represent the suitable of a certain element and another element
Sequence in sequence or manufacturing method, the use of those ordinal numbers are only used to enable an element and another tool with certain name
Clear differentiation can be made by having the element of identical name.
The disclosure can by means of include several different elements hardware and by means of properly programmed computer come
It realizes.The various component embodiments of the disclosure can be implemented in hardware, or to run on one or more processors
Software module is realized, or is implemented in a combination thereof.It will be understood by those of skill in the art that can be used in practice micro-
Processor or digital signal processor (DSP) are some or all in the relevant device according to the embodiment of the present disclosure to realize
The some or all functions of component.The disclosure be also implemented as a part for executing method as described herein or
Whole device or device programs (for example, computer program and computer program product).Such journey for realizing the disclosure
Sequence can store on a computer-readable medium, or may be in the form of one or more signals.Such signal can
To download from internet website, perhaps it is provided on the carrier signal or is provided in any other form.
Those skilled in the art will understand that can be carried out adaptively to the module in the equipment in embodiment
Change and they are arranged in one or more devices different from this embodiment.It can be the module or list in embodiment
Member or component are combined into a module or unit or component, and furthermore they can be divided into multiple submodule or subelement or
Sub-component.Other than such feature and/or at least some of process or unit exclude each other, it can use any
Combination is to all features disclosed in this specification (including adjoint claim, abstract and attached drawing) and so disclosed
All process or units of what method or apparatus are combined.Unless expressly stated otherwise, this specification is (including adjoint power
Benefit require, abstract and attached drawing) disclosed in each feature can carry out generation with an alternative feature that provides the same, equivalent, or similar purpose
It replaces.Also, in the unit claims listing several devices, several in these devices can be by same hard
Part item embodies.
Similarly, it should be understood that in order to simplify the disclosure and help to understand one or more of each open aspect,
Above in the description of the exemplary embodiment of the disclosure, each feature of the disclosure is grouped together into single implementation sometimes
In example, figure or descriptions thereof.However, the disclosed method should not be interpreted as reflecting the following intention: i.e. required to protect
The disclosure of shield requires features more more than feature expressly recited in each claim.More precisely, as following
Claims reflect as, open aspect is all features less than single embodiment disclosed above.Therefore,
Thus the claims for following specific embodiment are expressly incorporated in the specific embodiment, wherein each claim itself
All as the separate embodiments of the disclosure.
Particular embodiments described above has carried out further in detail the purpose of the disclosure, technical scheme and beneficial effects
Describe in detail it is bright, it is all it should be understood that be not limited to the disclosure the foregoing is merely the specific embodiment of the disclosure
Within the spirit and principle of the disclosure, any modification, equivalent substitution, improvement and etc. done should be included in the guarantor of the disclosure
Within the scope of shield.
Claims (10)
1. a kind of artificial radionuclide On-site sampling concentration detection device, including it is sequentially connected pump section, enriching apparatus part
And detection device part, wherein enriching apparatus includes shielded layer, liner, contaminant filter layer, nucleic enriched layer, the liner
Housing provided with shielding layer, water body to be detected are pumped part and are delivered in the liner, the impurity mistake through being mounted in liner
Filtering layer, and the enrichment of nucleic is carried out in nucleic enriched layer, the water in liner is emptied after enriching apparatus saturation, then pass through detection dress
It sets and carries out nucleic detection.
2. artificial radionuclide On-site sampling concentration detection device according to claim 1, wherein in the enriching apparatus,
Shielded layer includes lead screen layer and copper shield, and the copper shield is arranged inside lead screen layer, lead screen layer and copper
Shielded layer passes through two parts up and down and assembles；
Liner is assembled by upper and lower two parts, and lower part is connected with outlet pipe, under the lead screen layer and copper shield
Portion has the opening for accommodating outlet pipe.
3. artificial radionuclide On-site sampling concentration detection device according to claim 2, wherein
The contaminant filter layer includes the first contaminant filter layer, the second contaminant filter layer, miscellaneous for the bulky grain in filtering sea
Matter；
Nucleic enriched layer includes the first nucleic enriched layer, the second nucleic enriched layer, has nucleic absorption enrichment function using diaphragm type
The nanocomposite of energy is realized to a variety of nucleic while efficient absorption.
4. artificial radionuclide On-site sampling concentration detection device according to claim 3, the first contaminant filter layer includes close
Seal is connect by screw thread with liner top seal；Second contaminant filter layer, the first nucleic enriched layer and the second nucleic enriched layer
Identical as the first contaminant filter layer contour structures, the second nucleic enriched layer is connect with liner lower seal.
5. artificial radionuclide On-site sampling concentration detection device according to claim 2, wherein the pump section subpackage
It includes:
Water pump filter, for filtering off large volume impurity；
First water inlet pipe is connected to the water pump filter,
Water pump, import is connected to first water inlet pipe, for extracting the water body containing radionuclide；
Second water inlet pipe, is connected to the outlet of water pump, and is connected to enriching apparatus import.
6. artificial radionuclide On-site sampling concentration detection device according to claim 5, wherein installed on the second water inlet pipe
There is first flowmeter, the flow velocity and volume of the seawater for detecting and recording inflow enriching apparatus；Second is equipped on outlet pipe
Flowmeter, for detecting and recording the flow velocity and volume of the seawater flowed out from enriching apparatus.
7. artificial radionuclide On-site sampling concentration detection device according to claim 6, wherein
Control unit in detection device passes through the data for reading and handling first flowmeter and second flowmeter, adjusts water pump
Pump power ensures the bioaccumulation efficiency of enriching apparatus, and after processing seawater bulk reaches target volume, control unit controls water pump
It stops working.
8. artificial radionuclide On-site sampling concentration detection device according to claim 2, wherein detection device includes:
Detector passes through lead screen layer lower part and copper shield lower part from enriching apparatus bottom, close to liner lower part, for core
Element is detected；
Signal processing circuit is connected to detector, handles for the output signal to detector；
Control unit controls pump working, judges that in enriching apparatus after seawater emptying, starting detector simultaneously reads, analyzes signal
The signal that processing circuit obtains, and will test result and spread out of by signal output cable；
DC power supply, for powering to device.
9. artificial radionuclide On-site sampling concentration detection device according to claim 8, detector bottom connection control box,
The DC power supply, signal processing circuit and control unit are mounted in control box.
10. artificial radionuclide On-site sampling concentration detection device according to claim 8, the detector is NaI (T1)
Scintillation crystal probe mixes cerium lanthanum bromide (LaBr3:Ce) scintillation crystal probe or Ce:YAP scintillation crystal probe.
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Application publication date: 20190118 |