CN108663262A - A kind of batch suction filtration making β source devices - Google Patents
A kind of batch suction filtration making β source devices Download PDFInfo
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- CN108663262A CN108663262A CN201810743432.XA CN201810743432A CN108663262A CN 108663262 A CN108663262 A CN 108663262A CN 201810743432 A CN201810743432 A CN 201810743432A CN 108663262 A CN108663262 A CN 108663262A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T7/00—Details of radiation-measuring instruments
- G01T7/02—Collecting means for receiving or storing samples to be investigated and possibly directly transporting the samples to the measuring arrangement; particularly for investigating radioactive fluids
- G01T7/04—Collecting means for receiving or storing samples to be investigated and possibly directly transporting the samples to the measuring arrangement; particularly for investigating radioactive fluids by filtration
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- Sampling And Sample Adjustment (AREA)
Abstract
It is filtered the invention discloses a kind of batch and makes β source devices, which includes the vacuum box being linked in sequence, exhaust tube, pressure gauge, valve, aspiration pump；It is provided with matching used support grid in the vacuum box, the liquid collecting tube of array is inserted on support grid, the upper surface of vacuum box is provided with jack corresponding with liquid collecting tube；An adapter is inserted on each jack, source filter paper processed is mounted on the filter core of adapter, and adapter is pressed downward next, the edge seal connection of source filter paper and adapter processed.The sources the β batch of the present invention filters producing device and meets liquid precipitation filtering source requirement processed, realize mass, normalizing operation simultaneously, the workload for reducing analysis personnel solves the sources β and filters uncontrollable factor in manufacturing process, reduces the intake dosage and environmental emission amount of staff；The device measures the batch making in the sources β suitable for the β nucleic such as strontium 90, Ce 137, Y 90 separation analysis needed for ambient soil, water and attack of terrorism etc..
Description
Technical field
The invention belongs to radiation protection and environmental protection technical fields, and in particular to a kind of batch suction filtration making β source devices.
Background technology
The radioactivity discharged to air when active fall-out and nuclear accident that nuclear weapon test atmospheric nuclear explosion generates
90Sr, 137Cs can be deposited to ground, the plant in direct contaminated soil, open water and growth.Other nuclear activities are for example anti-
Answer stack operation, terrified accident, Application of Nuclear Technology etc. that the radionuclides such as Ni-63, Po-210 are diffused into not in different time
Same region also can directly be deposited to plant surface or be entered back into plant from absorption in soil through root, then be moved by food
Shifting etc. is directly entered in animal human body indirectly, do harm to huamn body.The major radiation object discharged such as Fukushima, Japan nuclear leakage
The nucleic such as matter caesium -137, caesium -134, Strontium-90, Yttrium-90 all detect in Fukushima surrounding soil, plant, fresh water and seawater
More times of the radionuclide more than before accident.It is measured for the β nucleic such as caesium -137, caesium -134, Strontium-90 or pure β Radionuclide analysis
There are many methods, such as ICP-MS measurements, radiation detection method, liquid to dodge mensuration, wherein the most convenient and efficient accurate, common and easy
What it is in acquisition is Low background α, β measuring instrument probe method in radiation detection method, the probe method according to caesium -137, caesium -134,
The β particles of the decay emissions such as Strontium-90 detect it, then carry out Activity Calculation according to Decay Law.In these β nucleic
Radiochemical Separation analysis measure in the key link be need make caesium -137, caesium -134, Strontium-90 separation concentration after the sources β with
For measuring.Previous experience and standard method is combined using class Buchner funnel with bottle,suction, and access aspiration pump is combined into suction filtration dress
The making measured with the sources β is set, since environment activity nucildic mass concentration is relatively low, often makes small source（Diameter is about
For 1.5cm）Using Low background α, β counter measures.It can be seen that the sources β are the key that influence entire analysis and measure, and current method
There are certain defects in terms of making the sources β：1）The class Buchner funnel non-standard apparatus of processing is complicated, based on easy to process
Being molded the material usually uses glass or quartz glass, the jacketed small casing in the inside, inner ring to be provided with silk mouth to ensure the no leakage that is locked,
It is high to cut out filter paper and place requirement, requirement height is manually assembled, is otherwise easy leakage；2）Small casing lower end sand core uses glass material
Matter, the number of openings is limited, class sand core funnel is inserted into bottle,suction by rubber stopper punching, due to sand core in suction filtration source procedure
The number of openings is limited, and lack of homogeneity is oozed under solution causes obtained source uniform poor；3）Manual control is needed during filtering
Air-flow, and prevent solution suck-back；4）Source procedure manual control process processed is more, source parameter processed and technique nonstandardized technique, it is uncontrollable because
Element is more, can not achieve batched operation；5）The heavy workload of analysis personnel, the time of contact of staff and exposure are big, take the photograph
It is big to enter dosage；6）Source uniform stability processed is poor, and chemical recovery rate and the putting rate of recovery are relatively low and unstable.
Currently, there has been no the research report for filtering producing device to the sources β batch, on the one hand possible reason is high-volume point
The standard method that Low background α, β measuring instrument probe method used in β nucleic is China is analysed, is optional method in the world, is not
International Standards Method.Still further aspect is how research focuses on front end nucleic separating and measuring, and still, China is relevant
Standard is the 80/90's of last century standard, relatively old, and not high to source attention rate processed.And in the nuclear industry and core skill of China
In art application practical application, usually used is all Low background α, β measuring instrument probe method, by nuclear industry and nuclear technology for many years
Application development is required for measuring the pure β Radionuclide analysis in biology, water, soil, other radwastes every year, realizes effective
Environmental monitoring.It solves the problems, such as that current standard method measures source, and can realize at degradation and the reduction of molecular sieve solid waste
Reason expense.Therefore the foundation for filtering producing device to the sources β batch has important researching value and practical significance.
Invention content
Technical problem to be solved by the invention is to provide a kind of batches to filter making β source devices.
The batch of the present invention, which filters, makes β source devices, its main feature is that：The device include the vacuum box being linked in sequence,
Exhaust tube, pressure gauge, valve, aspiration pump；It is provided with matching used support grid in the vacuum box, is inserted on support grid
There are the liquid collecting tube of array, the upper surface of vacuum box to be provided with jack corresponding with liquid collecting tube；It is inserted into an adapter on each jack,
Source filter paper processed is mounted on the filter core of adapter, and adapter is pressed downward next, the edge seal connection of source filter paper and adapter processed.
The material of the vacuum box is polyester transparent plastics.
Pressure limit in the vacuum box is 133Pa ~ 700Pa.
The material of the adapter is PP type plastic products.
The course of work that the batch of the present invention filters making β source devices is as follows：
A. the source filter paper processed for having cut out size is mounted on adapter filter core, by manually by the detachable outer tube pressure of adapter
Tight source filter paper processed, adapter end removable head are inserted into jack, and empty liquid collecting tube is placed on support grid；
B. ready suspension pours into adapter successively after stirring evenly, and opens aspiration pump and is evacuated to vacuum box, passes through meter
The speed that solution is dirty in adapter is calculated, pressure size is shown by pressure gauge, air-flow size is adjusted by valve, solution
Flow control is between 2ml/min~5ml/min；
C. continue to take out 1min according to former flow velocity after solution stream in adapter is complete；
D. aspiration pump is closed, adapter is removed after vacuum box pressure release is complete, dismantles outer tube, upper layer is carefully removed with sharp mouth tweezers
The collected by suction source filter paper processed in the sources β；
E. it collects and handles the waste liquid in liquid collecting tube.
The sources the β batch of the present invention, which filters producing device, realizes multiple suction filtration system integration one, passes through automation control
Source procedure processed, the β using source parameter processed and process standardization method batch making for measurement standardize source.The sources β of the present invention
Batch filters producing device and meets liquid precipitation filtering source requirement processed, while realizing mass, normalizing operation, reduces
The workload of analysis personnel, solve the sources β filter manufacturing process in uncontrollable factor, reduce staff intake dosage and
Environmental emission amount；The sources the β batch of the present invention filter producing device be suitable for Strontium-90 needed for ambient soil, water and attack of terrorism etc.,
The batch making in the sources β is measured in the pure β nucleic separation analysis such as caesium -137, Y-90.
Description of the drawings
Fig. 1 is that the batch of the present invention filters making β source device structure schematic diagrames；
In figure, 1. support grid, 2. liquid collecting tube, 3. vacuum box, 4. 6. jack of filter paper 5. adapter in source processed, 7. exhaust tube 8.
9. valve of pressure gauge, 10. aspiration pump.
Specific implementation mode
Invention is further described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, it includes the vacuum box 3 being linked in sequence, exhaust tube 7, pressure that the batch of the present invention, which filters making β source devices,
Power table 8, valve 9, aspiration pump 10；It is provided with matching used support grid 1 in the vacuum box 3, is inserted on support grid 1
The upper surface of the liquid collecting tube 2 of array, vacuum box 3 is provided with jack corresponding with liquid collecting tube 26；An adaptation is inserted on each jack 6
Device 5, source filter paper 4 processed are mounted on the filter core of adapter 5, and adapter 5 is pressed downward next, the edge of source filter paper 4 and adapter 5 processed
It is tightly connected.
The material of the vacuum box 3 is polyester transparent plastics.
Pressure limit in the vacuum box 3 is 133Pa ~ 700Pa.
The material of the adapter 5 is PP type plastic products.
The course of work that the batch of the present invention filters making β source devices is as follows：
A. the source filter paper 4 processed for having cut out size is mounted on 5 filter core of adapter, by manually by the detachable outer of adapter 5
Pipe compresses source filter paper 4 processed, and 5 end removable head of adapter is inserted into jack 6, empty liquid collecting tube 2 is placed on support grid 1；
B. it is poured into successively in adapter 5 after ready suspension stirs evenly, opens aspiration pump 10 and vacuum box 3 is evacuated, lead to
The speed for calculating that solution is dirty in adapter 5 is crossed, pressure size is shown by pressure gauge 8, air-flow size is adjusted by valve 9
Section, solution flow rate control between 2ml/min~5ml/min；
C. continue to take out 1min according to former flow velocity after solution stream in adapter 5 is complete；
D. aspiration pump 10 is closed, adapter 5 is removed after 3 pressure release of vacuum box is complete, dismantles outer tube, carefully removed with sharp mouth tweezers
The upper layer collected by suction source filter paper 4 processed in the sources β；
E. it collects and handles the waste liquid in liquid collecting tube 2.
Embodiment 1
Selection can contain the adapter 5 of corresponding amount, and liquid collecting tube 2, which is placed in vacuum box 3, to be had on matching used support grid 1,
The source filter paper 4 processed for having cut out size weighing, it is mounted on 5 filter core of adapter, by manually 5 detachable outer tube pressure of adapter
Tightly, 5 end removable head insertion jack 6 of adapter is seated air tight.Then Radiochemical Separation yttrium oxalate to be sampled is completed to hang
Supernatant liquid precipitation is disposed as requested, and the suspension for being restored to room temperature pours into adapter 5 one by one, opens vacuum box 3, pumping
Pump 10, valve 9 are evacuated solution, and by recording the speed that solution is dirty in adapter 5, pressure size is shown by pressure gauge 8,
Pressure limit is 133Pa ~ 700Pa, and air-flow size is adjusted in valve 9, and solution flow rate controls between 2ml~4ml.It waits fitting
Continue pumping 1min according to former flow velocity after solution stream is complete in orchestration 5.Aspiration pump 10 is closed, adaptation is removed after 3 pressure release of vacuum box is complete
Device 5, dismantles outer tube, and the source filter paper 4 processed in the sources upper layer collected by suction β is carefully removed with sharp mouth tweezers, and source filter paper 4 processed is toasted
To doing, weighs the net weight that deduction filter paper is restored to source and calculate chemical recovery rate, the chemistry time in the sources β of Y-90 is made by the device
Yield >=91.0%, the putting rate of recovery >=95.5%, waste liquid can treat as cold waste and handle in liquid collecting tube 2, fully meet Y-
90 measure the requirement in the sources β, the made sources β chemistry/the putting recycling of this method glass self assembly sample preparation device more mating than traditional bottle,suction
Rate is high, and once most multipotency makes 12 or more simultaneously（Depending on 3 sub- jack of vacuum box, 6 quantity）The sources β, and the sources β obtained are uniform
It is property, reproducible.
Embodiment 2
Selection can contain the adapter 5 of corresponding amount, and liquid collecting tube 2, which is placed in vacuum box 3, to be had on matching used support grid 1,
The source filter paper 4 processed for having cut out size weighing, it is mounted on 5 filter core of adapter, by manually 5 detachable outer tube pressure of adapter
Tightly, 5 end removable head insertion jack 6 of adapter is seated air tight.Then Radiochemical Separation is completed to iodine bismuthic acid caesium to be sampled
Suspension sedimentation is disposed as requested, and the suspension for being restored to room temperature pours into adapter 5 one by one, opens vacuum box 3, takes out
Air pump 10, valve 9 are evacuated solution, by recording the speed that solution is dirty in adapter 5, show that pressure is big by pressure gauge 8
Small, pressure limit is 133Pa ~ 700Pa, and air-flow size is adjusted in valve 9, and solution flow rate controls between 3ml~5ml.
Continue pumping 1min according to former flow velocity after solution stream in adapter 5 is complete.Aspiration pump 10 is closed, is removed after 3 pressure release of vacuum box is complete
Adapter 5, dismantles outer tube, and the source filter paper 4 processed in the sources upper layer collected by suction β is carefully removed with sharp mouth tweezers, and source filter paper 4 processed carries out
Be baked to it is dry, weigh deduct filter paper restore to source net weight calculate chemical recovery rate, pass through the device be made Cs-137 the sources β
The rate of recovery >=90.0% is learned, the putting rate of recovery >=96.0%, waste liquid can treat as cold waste and handle in liquid collecting tube 2, completely full
Sufficient Cs-137 measures the requirement in the sources β, the made sources the β chemistry of this method glass self assembly sample preparation device more mating than traditional bottle,suction/put
It is high to change the rate of recovery, once most multipotency makes 12 or more simultaneously（Depending on 3 sub- jack of vacuum box, 6 quantity）The sources β, and β obtained
It is source uniform, reproducible.
The present invention is not limited to above-mentioned specific implementation mode, person of ordinary skill in the field from above-mentioned design,
Without performing creative labour, made various transformation are within the scope of the present invention.
Claims (4)
1. a kind of batch, which filters, makes β source devices, it is characterised in that：The device includes the vacuum box being linked in sequence（3）, take out
Tracheae（7）, pressure gauge（8）, valve（9）, aspiration pump（10）；The vacuum box（3）Inside it is provided with matching used support lattice
Frame（1）, support grid（1）On be inserted with the liquid collecting tube of array（2）, vacuum box（3）Upper surface be provided with and liquid collecting tube（2）It is corresponding
Jack（6）；Each jack（6）One adapter of upper insertion（5）, source filter paper processed（4）Mounted on adapter（5）Filter core on, fit
Orchestration（5）It is pressed downward next, source filter paper processed（4）With adapter（5）Edge seal connection.
2. batch according to claim 1, which filters, makes β source devices, it is characterised in that：The vacuum box（3）Material
For polyester transparent plastics.
3. batch according to claim 1, which filters, makes β source devices, it is characterised in that：The vacuum box（3）Interior pressure
Power ranging from 133Pa ~ 700Pa.
4. batch according to claim 1, which filters, makes β source devices, it is characterised in that：The adapter（5）Material
For PP type plastic products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810743432.XA CN108663262A (en) | 2018-07-09 | 2018-07-09 | A kind of batch suction filtration making β source devices |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810743432.XA CN108663262A (en) | 2018-07-09 | 2018-07-09 | A kind of batch suction filtration making β source devices |
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| Publication Number | Publication Date |
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| CN108663262A true CN108663262A (en) | 2018-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810743432.XA Pending CN108663262A (en) | 2018-07-09 | 2018-07-09 | A kind of batch suction filtration making β source devices |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109324339A (en) * | 2018-10-30 | 2019-02-12 | 中国工程物理研究院核物理与化学研究所 | Sr-90 analytical equipment and method in a kind of reactor decommissioning stainless steel material |
| CN109975853A (en) * | 2019-04-09 | 2019-07-05 | 自然资源部第三海洋研究所 | The method of rapid survey marine organism radionuclide |
| CN110320072A (en) * | 2019-08-02 | 2019-10-11 | 中国核动力研究设计院 | It is a kind of for α total in water, the sample source preparation facilities and method of total RNA rxtraction |
| CN111081408A (en) * | 2019-12-04 | 2020-04-28 | 中国工程物理研究院核物理与化学研究所 | Device for producing α source through microfiltration and method for producing α source through microfiltration |
| CN114002046A (en) * | 2021-10-11 | 2022-02-01 | 中国原子能科学研究院 | Source manufacturing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201046357Y (en) * | 2007-04-24 | 2008-04-16 | 宝山钢铁股份有限公司 | A vacuum suction device |
| CN202555034U (en) * | 2012-05-04 | 2012-11-28 | 山东鸿正电池材料科技有限公司 | Suction filtration device |
| CN204502557U (en) * | 2015-01-30 | 2015-07-29 | 无锡海特圣大光电材料科技有限公司 | A kind of use for laboratory Suction filtration device |
| CN205981844U (en) * | 2016-09-08 | 2017-02-22 | 苏州热工研究院有限公司 | Strontium in liquid effluent of nuclear power plant 90 measuring system appearance device |
| CN208334023U (en) * | 2018-07-09 | 2019-01-04 | 中国工程物理研究院核物理与化学研究所 | A kind of batch suction filtration production β source device |
-
2018
- 2018-07-09 CN CN201810743432.XA patent/CN108663262A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201046357Y (en) * | 2007-04-24 | 2008-04-16 | 宝山钢铁股份有限公司 | A vacuum suction device |
| CN202555034U (en) * | 2012-05-04 | 2012-11-28 | 山东鸿正电池材料科技有限公司 | Suction filtration device |
| CN204502557U (en) * | 2015-01-30 | 2015-07-29 | 无锡海特圣大光电材料科技有限公司 | A kind of use for laboratory Suction filtration device |
| CN205981844U (en) * | 2016-09-08 | 2017-02-22 | 苏州热工研究院有限公司 | Strontium in liquid effluent of nuclear power plant 90 measuring system appearance device |
| CN208334023U (en) * | 2018-07-09 | 2019-01-04 | 中国工程物理研究院核物理与化学研究所 | A kind of batch suction filtration production β source device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109324339A (en) * | 2018-10-30 | 2019-02-12 | 中国工程物理研究院核物理与化学研究所 | Sr-90 analytical equipment and method in a kind of reactor decommissioning stainless steel material |
| CN109975853A (en) * | 2019-04-09 | 2019-07-05 | 自然资源部第三海洋研究所 | The method of rapid survey marine organism radionuclide |
| CN110320072A (en) * | 2019-08-02 | 2019-10-11 | 中国核动力研究设计院 | It is a kind of for α total in water, the sample source preparation facilities and method of total RNA rxtraction |
| CN111081408A (en) * | 2019-12-04 | 2020-04-28 | 中国工程物理研究院核物理与化学研究所 | Device for producing α source through microfiltration and method for producing α source through microfiltration |
| CN114002046A (en) * | 2021-10-11 | 2022-02-01 | 中国原子能科学研究院 | Source manufacturing device |
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