CN207689188U - Micro- plastics acquisition system in a kind of seawater - Google Patents
Micro- plastics acquisition system in a kind of seawater Download PDFInfo
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- CN207689188U CN207689188U CN201721684557.7U CN201721684557U CN207689188U CN 207689188 U CN207689188 U CN 207689188U CN 201721684557 U CN201721684557 U CN 201721684557U CN 207689188 U CN207689188 U CN 207689188U
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Abstract
The utility model belongs to micro- plastics sampling technique field, disclose micro- plastics acquisition system in a kind of seawater, the filter being connect including flowmeter and with flowmeter, filter is equipped with water inlet, water outlet and ultrasonic vibrator, filter water inlet is connect with flowmeter, and dismountable strainer is equipped between filter housings and ultrasonic vibrator, and the channel between shell and strainer connects water inlet, lead to water outlet in channel between strainer and ultrasonic vibrator, and housing bottom is equipped with valve.The technical program can be with micro- plastics in collection in worksite water body, the quantitative micro- plastics being enriched in large sample water body, for lab analysis detection, and this system sampling quantity is big, efficiently accurate, simplicity is flexible.
Description
Technical field
The present invention relates to the micro- plastics sampling apparatuses of seawater, belong to marine environmental monitoring field, more particularly in a kind of seawater
Micro- plastics sampling system.
Background technology
Micro- plastics（Microplastics）It is the novel environmental pollutant being widely noticed in recent years, at present about micro- plastics
Definition in the world there is no seek unity of standard, refer generally to grain size be less than 5mm plastic flakes or plastic grain.Micro- plastic nature phase
To stabilization, grain size is small, density is low, and large specific surface area, hydrophobicity are strong, can long-term existence in environment, can be migrated with external force
It is the ideal carrier of numerous hydrophobic organic pollutants and heavy metal.When micro- plastics are eaten by mistake by planktonic organism and fish etc., can grow
Time is detained in organism, and transfer and enrichment occur in food web, and eventually passing through food chain can be eaten by the mankind, serious shadow
It rings and arrives marine ecosystems and human health.Micro- plastics abundance is relatively low in seawater sample, need to generally pass through the pre- places such as concentration, enrichment
Reason method can be just detected.The device and method of micro- plastics acquisition not yet standardizes in water sample at present, is normally applied the side of trawlnet
Formula samples, or a large amount of water samples of acquisition filter post analysis to laboratory.Strainer is mostly plastics used in mode due to trawlnet sampling
Net be easy to cause contamination, can not ensure the volume of water sample accuracy of sampling, can not also complete grab sampling, cannot be incited somebody to action after sampling
Acquisition sample exports completely, and analysis is inconvenient.
Invention content
The purpose of this utility model is that in view of the above technical problems, providing one kind can be with micro- plastics in collection in worksite water body
System, realized by following scheme.
Micro- plastics sampling system in seawater, including flowmeter and the filter that is connect with flowmeter, filter are equipped with water inlet
Mouth, water outlet and ultrasonic vibrator, filter water inlet are connect with flowmeter, are equipped between filter housings and ultrasonic vibrator removable
The strainer unloaded, the channel between shell and strainer connect water inlet, and lead in the channel between strainer and ultrasonic vibrator water outlet, shell
Body bottom is equipped with valve.
Filter water outlet connects counter-flushing liquid container and water after filter sample container.
Check valve and booster pump are equipped between filter and counter-flushing liquid container.
Third water valve is equipped between filter and water after filter sample container.
Filter includes first filter and the second filter, and first filter is identical with the second filtration device structure, they
Between be equipped with the second water valve and pressure gauge.
The first water valve is equipped between flowmeter and filter.
Liquid to be sampled imports sampling system by water pump.
Preferably, strainer is marine corrosion resistance stainless steel.
Preferably, filter housings are transparency silica glass.
Preferably, water pump and water valve are stainless steel metal part.
First filter and the second filter are the filter with backwashing function.Strainer used be seawater corrosion resistance not
Rust steel is made, and belongs to replaceable material, and metal material will not detect the analysis of micro- plastics and impact.There are many holes for strainer
Diameter can be needed replacing according to the difference for testing and analyzing micro- plastics.Filter housing is threadedly coupled with filter head, from water inlet
The liquid that mouth flows into can only could be flowed out by filter screen from water outlet, be transparent quartz glass, can be observed water sample at any time
Enrichment situation.Ultrasonic vibrator is configured, particulate matter disengaging of the assistant depositing to strainer when backwash.Valve is closed when filtering water sample,
Water sample is entered by water inlet in filter, is discharged from water outlet via strainer, the particle more than aperture of filter screen can be enriched in filtering
In device.Deng concrete water quality needed for having filtered, valve is opened, sample is collected, while counter-flushing liquid is perfused by water outlet, opens ultrasound,
The particle deposited on strainer i.e. capable of washing, counter-flushing liquid are collected into sample holding bottle.For prevent from depositing to the particulate matter of strainer without
Method completely disengages strainer, and after completing primary acquisition, storable strainer takes back lab analysis.Strainer is replaced simultaneously, is carried out down
Primary acquisition.
System pipe fitting selects polyfluortetraethylene pipe, connector and water pump, water valve etc. to select the metalworks such as stainless steel.Sample stores
Bottle and counter-flushing liquid storage bottle etc. select vial.Reduce the influence that plastic material is brought as far as possible.
Seawater is by preposition coarse filtration, under water pump effect, via the first water valve, first filter, second filter etc.
The storage of water after filter sample bottle is eventually entered into, can also directly be exhausted.Water inlet can be selected in sample water layer.First water valve configures pressure release
Valve is more than to limit pressure, and water can be discharged via relief valve, it is ensured that sampling system safety.
When acquiring water sample, first filter aperture of filter screen is set as 5mm, and the second filter pore size could be provided as
0.05mm or other required apertures.Qualified micro- plastic grain is enriched between first filter and the second filter.
With the progress of filtering, the second strainer screen may block, and hydraulic pressure gradually rises.Pressure gauge monitors hydraulic pressure in real time, waits for water
Pressure is increased to critical pressure, closes the second water valve and third water valve, opens the second Filter valve, is acquiring the desired amount of sample
Afterwards, the sample after enrichment enters sample storage bottle.Then booster pump and ultrasound are opened, it is anti-using flushing liquor under the action of ultrasound
It rinses, is collected together to sample holding bottle.The valve of the second filter is closed, the second water valve is opened and third water valve continues to acquire
Water sample, can above-mentioned steps repeatedly.According to the counting of flowmeter, the sample of multiple initial concentration enrichment is collected, reality is taken back after preservation
Test room secondary filter post analysis detection.Complete a sampled acquisition.Can be as needed, multistage filter is configured, according to filter
Aperture of filter screen from big to small, collects micro- plastic sample of different-grain diameter.
The technical program can be with micro- plastics in collection in worksite water body, micro- plastics in quantitative enrichment large sample water body,
For lab analysis detection, this system sampling quantity is big, efficiently accurate, easy to be flexible.
Description of the drawings
Fig. 1：In seawater of the present invention in micro- plastics sampling system filter structural front view；
Fig. 2：In seawater of the present invention in micro- plastics sampling system filter cross-sectional view of the structure；
Fig. 3：Micro- plastics sampling system structure chart in seawater of the present invention.
Wherein：1. water inlet；2. water outlet；3. shell；4. strainer；5. ultrasonic vibrator；6. valve；7. preposition coarse filtration；
8. water pump；9. flowmeter；10. the first water valve；11. first filter；12. the second water valve；13. waste liquid；14. pressure gauge；15. the
Tow filtrator；16. sample holding bottle；17. third water valve；18. check valve；19. booster pump；20. counter-flushing liquid；21. water after filter
Sample.
Specific implementation mode
1-3 with reference to the accompanying drawings is described further the technical program.
Embodiment 1
The micro- plastics sampling apparatus of seawater, including flowmeter 9 and the filter that is connect with flowmeter 9, filter are equipped with water inlet
Mouth 1, water outlet 2 and ultrasonic vibrator 5, filter water inlet 1 are connect with flowmeter 9, between filter housings 3 and ultrasonic vibrator 5
Equipped with dismountable strainer 4, the channel between shell 3 and strainer 4 connects water inlet 1, logical between strainer 4 and ultrasonic vibrator 5
Lead to water outlet 2 in road, and 3 bottom of shell is equipped with valve 6.
Embodiment 2
On the basis of embodiment 1, filter water outlet 2 connects 20 container of counter-flushing liquid and water after filter sample container.Filtering
Check valve 18 and booster pump 19 are equipped between 20 container of device and counter-flushing liquid.Third is equipped between filter and water after filter sample container
Water valve 17.
Embodiment 3
On the basis of embodiment 2, filter includes first filter 11 and the second filter 15,11 He of first filter
Second filter, 15 structure is identical, and the first water valve 12 and pressure gauge 14 are equipped between them.It is equipped between flowmeter 9 and filter
First water valve 10.Further include water pump 8, liquid to be sampled imports sampling system by water pump 8.Strainer is that seawater corrosion resistance is stainless
Steel, filter housings are transparency silica glass.
To acquire in 1 cubic metre of seawater for micro- plastic sample of 0.3mm-5mm, if sampling position is remote, micro- plastics
Abundance in the seawater is relatively low, and is not suitable for trawlnet sampling, and analysis detection could be completed by needing to acquire larger amount of water sample.Make
With the present apparatus, you can conveniently complete spot sampling.Illustrate that main acquisition step is as follows：
（1）First filter 11 configures the strainer in the apertures 5mm, and the second filter 15 configures the strainer of 0.3mm, checks and clear
Flow path system is washed, the reading of flowmeter 9 is reset；
（2）7 water inlet of preposition coarse filtration is placed into sampling position, water pump 8 is opened, is filtered；
（3）Wait for that the monitoring of flowmeter 9 has reached water sample needed for acquisition（1m3）, close the first water valve 12, third water valve 17 and water
Pump 8；
（4）The valve of the second filter 15 is opened, water sample is collected；
（5）Booster pump 19 is opened, counter-flushing liquid 20 is injected into the second filter 15, the particle of backwash deposition to strainer
Object, opens simultaneously ultrasound, and auxiliary particle object is detached from strainer；
（6）Counter-flushing liquid 20 is collected together to sample storage bottle；
（7）Strainer is taken out, preserves, takes back laboratory.
（8）When lab analysis, first strainer screen is cleaned up, the water sample of cleaning solution and acquisition is used again together
0.33mm strainer secondary filters.It is final to obtain required sample.
Embodiment only illustrates technical scheme of the present invention, rather than carries out any restrictions to it；Although with reference to the foregoing embodiments
Invention is explained in detail, for those of ordinary skill in the art, still can be to previous embodiment institute
The technical solution of record is modified or equivalent replacement of some of the technical features；And these modifications or substitutions, and
The essence of corresponding technical solution is not set to be detached from the spirit and scope of claimed technical solution of the invention.
Claims (10)
1. micro- plastics acquisition system in a kind of seawater, it is characterised in that：The filter being connect including flowmeter and with flowmeter, mistake
Filter is equipped with water inlet, water outlet and ultrasonic vibrator, and filter water inlet is connect with flowmeter, filter housings and ultrasonic vibrator
Between be equipped with dismountable strainer, channel between shell and strainer connects water inlet, the channel between strainer and ultrasonic vibrator
Lead to water outlet, housing bottom is equipped with valve.
2. micro- plastics acquisition system in a kind of seawater according to claim 1, it is characterised in that：Filter water outlet connects
Counter-flushing liquid container and water after filter sample container.
3. micro- plastics acquisition system in a kind of seawater according to claim 2, it is characterised in that：Filter and counter-flushing liquid
Check valve and booster pump are equipped between container.
4. micro- plastics acquisition system in a kind of seawater according to claim 2, it is characterised in that：Filter and water after filter sample
Third water valve is equipped between container.
5. micro- plastics acquisition system in a kind of seawater according to claim 1, it is characterised in that：Filter includes the first mistake
Filter and the second filter, first filter is identical with the second filtration device structure, and the second water valve and pressure gauge are equipped between them.
6. micro- plastics acquisition system in a kind of seawater according to claim 1, it is characterised in that：Flowmeter and filter it
Between be equipped with the first water valve.
7. micro- plastics acquisition system in a kind of seawater according to claim 1, it is characterised in that：Further include water pump, waits adopting
Collection liquid imports acquisition system by water pump.
8. according to micro- plastics acquisition system in a kind of any seawater of claim 1-7, it is characterised in that：Strainer is resistance to sea
Aqueous corrosion stainless steel.
9. according to micro- plastics acquisition system in a kind of any seawater of claim 1-7, it is characterised in that：Filter housings
For transparency silica glass.
10. according to micro- plastics acquisition system in a kind of any seawater of claim 1-7, it is characterised in that：Water pump and water
Valve is stainless steel metal part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721684557.7U CN207689188U (en) | 2017-12-07 | 2017-12-07 | Micro- plastics acquisition system in a kind of seawater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721684557.7U CN207689188U (en) | 2017-12-07 | 2017-12-07 | Micro- plastics acquisition system in a kind of seawater |
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| Publication Number | Publication Date |
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| CN207689188U true CN207689188U (en) | 2018-08-03 |
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| CN201721684557.7U Active CN207689188U (en) | 2017-12-07 | 2017-12-07 | Micro- plastics acquisition system in a kind of seawater |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843460A (en) * | 2017-12-07 | 2018-03-27 | 山东省科学院海洋仪器仪表研究所 | Micro- plastics sampling system and method in seawater |
| CN108982158A (en) * | 2018-08-24 | 2018-12-11 | 东北师范大学 | The comprehensive acquisition device and method of micro- plastics in a kind of water body |
| CN109506984A (en) * | 2018-09-27 | 2019-03-22 | 蔡明红 | Micro- plastics sampling column, micro- plastics acquisition device and digestion procedure in situ |
| CN111157691A (en) * | 2019-12-24 | 2020-05-15 | 华东师范大学 | Detection apparatus for micro-plastic concentration in water |
| CN111257464A (en) * | 2020-02-26 | 2020-06-09 | 中国科学院生态环境研究中心 | Method for quantitatively determining micro-plastic in water environment |
| CN109724848B (en) * | 2018-11-21 | 2021-09-21 | 华东理工大学 | Rapid collection device and collection method for micro-plastics in shallow water in river and lake system |
| CN114951241A (en) * | 2022-05-24 | 2022-08-30 | 青岛双瑞海洋环境工程股份有限公司 | Marine plastic particle recovery system and recovery method thereof |
-
2017
- 2017-12-07 CN CN201721684557.7U patent/CN207689188U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843460A (en) * | 2017-12-07 | 2018-03-27 | 山东省科学院海洋仪器仪表研究所 | Micro- plastics sampling system and method in seawater |
| CN108982158A (en) * | 2018-08-24 | 2018-12-11 | 东北师范大学 | The comprehensive acquisition device and method of micro- plastics in a kind of water body |
| CN109506984A (en) * | 2018-09-27 | 2019-03-22 | 蔡明红 | Micro- plastics sampling column, micro- plastics acquisition device and digestion procedure in situ |
| CN109724848B (en) * | 2018-11-21 | 2021-09-21 | 华东理工大学 | Rapid collection device and collection method for micro-plastics in shallow water in river and lake system |
| CN111157691A (en) * | 2019-12-24 | 2020-05-15 | 华东师范大学 | Detection apparatus for micro-plastic concentration in water |
| CN111257464A (en) * | 2020-02-26 | 2020-06-09 | 中国科学院生态环境研究中心 | Method for quantitatively determining micro-plastic in water environment |
| CN114951241A (en) * | 2022-05-24 | 2022-08-30 | 青岛双瑞海洋环境工程股份有限公司 | Marine plastic particle recovery system and recovery method thereof |
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