CN208334023U - A kind of batch suction filtration production β source device - Google Patents
A kind of batch suction filtration production β source device Download PDFInfo
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- CN208334023U CN208334023U CN201821077179.0U CN201821077179U CN208334023U CN 208334023 U CN208334023 U CN 208334023U CN 201821077179 U CN201821077179 U CN 201821077179U CN 208334023 U CN208334023 U CN 208334023U
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Abstract
The utility model discloses a kind of batches to filter production β source device, 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 source the β batch of the utility model filters producing device and meets liquid precipitation filtering source requirement processed, mass, normalizing operation are realized simultaneously, reduce the workload of analysis personnel, it solves the source β and filters uncontrollable factor in manufacturing process, reduce the intake dosage and environmental emission amount of staff；The device measures the batch making in the source β suitable for the separation analysis of the β nucleic such as Strontium-90, caesium -137, Y-90 needed for ambient soil, water and attack of terrorism etc..
Description
Technical field
The utility model belongs to radiation protection and environmental protection technical field, and in particular to a kind of batch suction filtration production source β
Device.
Background technique
The radioactivity discharged when active fall-out and nuclear accident that nuclear weapon test atmospheric nuclear explosion generates to atmosphere
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 can also directly be deposited to plant surface or enter back into plant through root from absorption in soil, then be moved by food
Shifting etc. is directly entered in animal human body indirectly, is done 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 measurement, 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 particle of the decay emissions such as Strontium-90 detects it, then carries out Activity Calculation according to Decay Law.In these β nucleic
Radiochemical Separation analysis measurement in the key link be need to make caesium -137, caesium -134, Strontium-90 separation concentration after the source β with
For measurement.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 production measured with the source β is set, since environment activity nucildic mass concentration is lower, often making small source, (diameter is about
Low background α, β counter measures are used for 1.5cm).It can be seen that the source β is the key that the entire analysis of influence and measures, and current method
Have the defects that in terms of making the source β certain: 1) structure is complicated for the class Buchner funnel non-standard apparatus processed, based on easy to process
It forming the material and usually uses glass or quartz glass, the jacketed small casing in the inside, inner ring is provided with silk mouth to guarantee 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) sand core in small casing lower end 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 uniformity difference is seeped 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) heavy workload of personnel is analyzed, 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 source 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 the nuclear industry and nuclear technology of many years
Application development requires to realize effective pure β Radionuclide analysis measurement in biology, water, soil, other radioactive wastes every year
Environmental monitoring.It solves the problems, such as current standard method measurement source, and is able to achieve at degradation and the reduction of molecular sieve solid waste
Reason expense.Therefore the foundation for filtering producing device to the source β batch has important researching value and practical significance.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of batches to filter production β source device.
The batch of the utility model filters production β source device, its main feature is that: the device includes the vacuum being linked in sequence
Box, exhaust tube, pressure gauge, valve, aspiration pump；Matching used support grid, support grid are provided in the vacuum box
On be inserted with the liquid collecting tube of array, the upper surface of vacuum box is provided with jack corresponding with liquid collecting tube；One is inserted on each jack to fit
Orchestration, source filter paper processed are mounted on the filter core of adapter, and adapter is pressed downward next, the edge seal of source filter paper and adapter processed
Connection.
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 utility model filters production β source device 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 of adapter
Pipe compresses source filter paper processed, and adapter end removable head is inserted into jack, and empty liquid collecting tube is placed on support grid；
B. ready suspension successively pours into adapter after mixing evenly, opens aspiration pump and is evacuated to vacuum box, leads to
The speed for calculating that solution is dirty in adapter is crossed, 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, is carefully removed with sharp mouth tweezers
The upper layer collected by suction source filter paper processed in the source β；
E. it collects and handles the waste liquid in liquid collecting tube.
The source the β batch of the utility model, which filters producing device, realizes multiple suction filtration system integration one, passes through automation
Source procedure processed is controlled, the β using source parameter processed and process standardization method batch making for measurement standardizes source.This is practical new
The source the β batch of type filters producing device and meets liquid precipitation filtering source requirement processed, while realizing mass, standardization behaviour
Make, reduce the workload of analysis personnel, solves the source β and filter uncontrollable factor in manufacturing process, reduce staff's
Take in dosage and environmental emission amount；The source the β batch of the utility model filters producing device and attacks suitable for ambient soil, water and terror
The batch making in the source β is measured in the pure β nucleic separation analysis such as Strontium-90, caesium -137, Y-90 needed for hitting etc..
Detailed description of the invention
Fig. 1 is that the batch of the utility model filters production β source device structure schematic diagram；
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 embodiment
The utility model is described in further 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 that the batch of the utility model, which filters production β source device,
7, pressure gauge 8, valve 9, aspiration pump 10；Matching used support grid 1 is provided in the vacuum box 3, on support grid 1
It is inserted with the liquid collecting tube 2 of array, the upper surface of vacuum box 3 is provided with jack 6 corresponding with liquid collecting tube 2；One is inserted on each jack 6
Adapter 5, source filter paper 4 processed are mounted on the filter core of adapter 5, and adapter 5 is pressed downward next, source filter paper 4 processed and adapter 5
Edge seal connection.
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 utility model filters production β source device 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 removable of adapter 5
It unloads outer tube and compresses source filter paper 4 processed, 5 end removable head of adapter is inserted into jack 6, and empty liquid collecting tube 2 is placed on support grid 1
On；
B. ready suspension successively pours into adapter 5 after mixing evenly, opens aspiration pump 10 and takes out to vacuum box 3
Gas shows pressure size by pressure gauge 8, by valve 9 to air-flow size by calculating the speed that solution is dirty in adapter 5
It is adjusted, 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 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, it is careful with sharp mouth tweezers
Remove the source filter paper 4 processed in the source upper layer collected by suction 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, matching used support grid 1
On, it the source filter paper 4 processed for having cut out size weighing, is mounted on 5 filter core of adapter, by manually that adapter 5 is detachable outer
Pipe compresses, and 5 end removable head of adapter insertion jack 6 is seated air tight.Then Radiochemical Separation is completed to oxalic acid to be sampled
Yttrium suspension sedimentation is disposed as requested, and the suspension for being restored to room temperature pours into adapter 5 one by one, open vacuum box 3,
Aspiration pump 10, valve 9 are evacuated solution, by the dirty speed of solution in record 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 control is between 2ml~4ml.
Continue to take out 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 source 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 Y-90 the source β change
The rate of recovery >=91.0% is learned, the putting rate of recovery >=95.5%, waste liquid can be handled as cold waste in liquid collecting tube 2, completely full
The requirement in the sufficient Y-90 measurement source β, this method made source β chemistry/putting of glass self assembly sample preparation device more mating than traditional bottle,suction
The rate of recovery is high, and once most multipotency makes 12 or more (depending on sub- 6 quantity of jack of vacuum box 3) sources β, and the source β obtained simultaneously
It is uniformity, reproducible.
Embodiment 2
Selection can contain the adapter 5 of corresponding amount, and liquid collecting tube 2, which is placed in vacuum box 3, matching used support grid 1
On, it the source filter paper 4 processed for having cut out size weighing, is mounted on 5 filter core of adapter, by manually that adapter 5 is detachable outer
Pipe compresses, and 5 end removable head of adapter insertion jack 6 is seated air tight.Then Radiochemical Separation is completed to iodine bismuth to be sampled
Sour caesium 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, aspiration pump 10, valve 9 are evacuated solution, by the dirty speed of solution in record adapter 5, show pressure by pressure gauge 8
Size, pressure limit are 133Pa ~ 700Pa, and air-flow size is adjusted in valve 9, solution flow control 3ml~5ml it
Between.Continue to take out 1min according to former flow velocity after solution stream in adapter 5 is complete.Aspiration pump 10 is closed, is taken after 3 pressure release of vacuum box is complete
Lower adapter 5, dismantles outer tube, carefully removes the source filter paper 4 processed in the source upper layer collected by suction β with sharp mouth tweezers, source filter paper 4 processed into
Row 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 source β
Chemical recovery rate >=90.0%, the putting rate of recovery >=96.0%, waste liquid can be handled as cold waste in liquid collecting tube 2, completely
Meeting the requirement in the Cs-137 measurement source β, the made source β of this method glass self assembly sample preparation device mating than traditional bottle,suction is chemical/
The putting rate of recovery is high, and once most multipotency makes 12 or more (depending on sub- 6 quantity of jack of vacuum box 3) sources β simultaneously, and obtained
It is β source uniform, reproducible.
The utility model is not limited to above-mentioned specific embodiment, and person of ordinary skill in the field visualizes from above-mentioned
Hair, without creative labor, made various transformation are all fallen within the protection scope of the utility model.
Claims (2)
1. a kind of batch filters production β source device, it is characterised in that: the device includes the vacuum box (3) being linked in sequence, takes out
Tracheae (7), pressure gauge (8), valve (9), aspiration pump (10)；Matching used support lattice are provided in the vacuum box (3)
Frame (1) is inserted with the liquid collecting tube (2) of array on support grid (1), and the upper surface of vacuum box (3) is provided with corresponding with liquid collecting tube (2)
Jack (6)；An adapter (5) is inserted on each jack (6), source filter paper (4) processed is mounted on the filter core of adapter (5), fits
Orchestration (5) is pressed downward next, and source filter paper (4) processed connect with the edge seal of adapter (5).
2. batch according to claim 1 filters production β source device, it is characterised in that: the pressure in the vacuum box (3)
Power range is 133Pa ~ 700Pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821077179.0U CN208334023U (en) | 2018-07-09 | 2018-07-09 | A kind of batch suction filtration production β source device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821077179.0U CN208334023U (en) | 2018-07-09 | 2018-07-09 | A kind of batch suction filtration production β source device |
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| Publication Number | Publication Date |
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| CN208334023U true CN208334023U (en) | 2019-01-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663262A (en) * | 2018-07-09 | 2018-10-16 | 中国工程物理研究院核物理与化学研究所 | A kind of batch suction filtration making β source devices |
| 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 |
-
2018
- 2018-07-09 CN CN201821077179.0U patent/CN208334023U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663262A (en) * | 2018-07-09 | 2018-10-16 | 中国工程物理研究院核物理与化学研究所 | A kind of batch suction filtration making β source devices |
| 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 |
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