CN202942725U - Portable classifying filtering device applicable to collection of phytoplankton - Google Patents
Portable classifying filtering device applicable to collection of phytoplankton Download PDFInfo
- Publication number
- CN202942725U CN202942725U CN 201220591060 CN201220591060U CN202942725U CN 202942725 U CN202942725 U CN 202942725U CN 201220591060 CN201220591060 CN 201220591060 CN 201220591060 U CN201220591060 U CN 201220591060U CN 202942725 U CN202942725 U CN 202942725U
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- fixed jacket
- jacket cylinder
- film filter
- phytoplankton
- membrane
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Abstract
The utility model discloses a portable classifying filtering device applicable to the collection of phytoplankton. The portable classifying and filtering device comprises a fixed outer sleeve, wherein a water inlet is formed in the top of the fixed outer sleeve, and a water outlet is formed in the bottom of the fixed outer sleeve; a plurality of series-connected membrane-changing filters are arranged in the fixed outer sleeve; a water outlet of each membrane-changing filter is connected with a water inlet of the next membrane-changing filter, so that the plurality of membrane-changing filters are connected in series; the pore sizes of filter membranes in the membrane-changing filters are reduced gradually; a water inlet of the first membrane-changing filter penetrates through the water inlet of the fixed outer sleeve and is connected with an injection connector of a syringe; a water outlet of the last membrane-changing filter is connected with the water outlet of the fixed outer sleeve; the shape of the fixed outer sleeve is matched with that of each membrane-changing filter to ensure that each membrane-changing filter is fixed by the fixed outer sleeve; and the fixed outer sleeve can be dismounted and opened to ensure that the membrane-changing filters in the fixed outer sleeve can be taken out. The portable classifying filtering device can quickly and accurately classify and collect the phytoplankton with different size fractions once in a classifying manner, and is easy to operate.
Description
Technical field:
The filter that the utility model relates to a kind of Portable acquiring phytoplankton and phytoplankton carried out classification.
Background technology:
The phytoplankton Primary Production is the important initial link of marine ecosystems matter and energy circulation, and it forms with multifarious variation will directly affect ecosystem structures and function.Phytoplankton distributes environmental evolution is had indicative function, and the change of environmental condition simultaneously also directly or indirectly affects the structure of community of phytoplankton.Therefore, phytoplankton plays an important role in marine ecosystems balance, the miniature food web in ocean, Global climate change and marine fishery resources research.The phytoplankton of size fractionated size plays an important role in the structure of marine ecosystems natural communities and nutrition relationship, and is different to the contribution of biomass and production, affected by environmental change and structure of community changes and also difference all of functional character.In research phytoplankton structure and the ecological problems such as variation, biomass (grading chlorophyll a) and primary productivity, usually according to phytoplankton grade size with filter membrane with sample classification.At present method commonly used is that the filter membrane of bolting silk, 2.0 μ m and 0.45 μ m with aperture 20 μ m divides three grades of negative pressure filtrations, with miniature (Nano-) that hold back respectively small-sized (Net-) greater than 20m, 2.0-20m with less than slight type (Pico-) phytoplankton of 2.0m.This method operating process complexity, on-the-spot (on ship) sampling difficulty is large, and is restricted in the field application of phytoplankton gene expression pattern equimolecular ecological study.
The utility model content:
the purpose of this utility model is for problems such as the operating process complexity that exists in existing phytoplankton classification and sample collection method and spot sampling difficulties, provide a kind of can to the effective classification of phytoplankton sample applicable to the portable classified filtering device that gathers phytoplankton, this device can not only be disposable collection size-fractionated phytoplankton group sample, and operating process is simple, spot sampling is convenient, not only enlarge the range of application of collected specimens but also alleviated labour intensity, the fixed jacket material is light, hardness is high, good toughness, corrosion-resistant and cost is low, can reach grading effect preferably.
The utility model is achieved by the following technical programs:
portable classified filtering device applicable to gathering phytoplankton of the present utility model, it is characterized in that, comprise the fixed jacket cylinder, top at the fixed jacket cylinder is provided with water inlet, bottom at the fixed jacket cylinder is provided with discharge outlet, be provided with the film filter that changes of several series connection in the fixed jacket cylinder, previous discharge outlet of changing film filter is connected with the water inlet that the next one changes film filter, so that several change the film filter series connection, and the filter membrane pore size that changes in film filter diminishes step by step, the water inlet that first water inlet that changes film filter passes the fixed jacket cylinder is connected with the fluid injection joint of syringe, last discharge outlet of changing film filter is connected with the discharge outlet of fixed jacket cylinder, the fixed jacket cylinder adapts with the shape of changing film filter and changes film filter so that the fixed jacket cylinder is fixed, the fixed jacket cylinder is detachably opened, can take out the film filter that changes of its inside.
Preferably, the discharge outlet of described fixed jacket cylinder is connected with container through sebific duct, so just can well collect the liquid after filtration.
Preferably, described fixed jacket cylinder comprises cylinder and movable upper cover and the lower cover that is placed in the cylinder two ends at middle part, the water inlet of described fixed jacket cylinder is provided with upper cover and covers, and the discharge outlet of described fixed jacket cylinder is provided with lower cover and covers, and described upper cover and lower cover are threaded with the cylinder at middle part.
The utility model can not only be disposable collection size-fractionated phytoplankton group sample, and operating process is simple, spot sampling is convenient, not only enlarge the range of application of collected specimens but also alleviated labour intensity, the fixed jacket material is light, hardness is high, good toughness, corrosion-resistant and cost is low, grading effect preferably be can reach, spot sampling and in-house operation are applicable to.
Description of drawings:
Fig. 1 is the structural representation of the portable classified filtering device applicable to gathering phytoplankton of the present utility model;
Wherein 1, fixed jacket cylinder; 11, the cylinder at middle part; 12, upper cover; 13, lower cover; 14, the water inlet of fixed jacket cylinder; 15, the discharge outlet of fixed jacket cylinder; 21, first change film filter; 211, the first water inlet that changes film filter; 22, second change film filter; 23, the 3rd change film filter; 231, the 3rd discharge outlet of changing film filter; 3, syringe; 4, sebific duct; 5, container.
The specific embodiment:
Following examples are to further illustrate of the present utility model, rather than to restriction of the present utility model.
Embodiment 1:
as shown in Figure 1, portable classified filtering device applicable to gathering phytoplankton of the present utility model, comprise fixed jacket cylinder 1, this fixed jacket cylinder comprises cylinder 11 and movable upper cover 12 and the lower cover 13 that is placed in the cylinder two ends at middle part, upper cover 12 covers the water inlet 14 that is provided with the fixed jacket cylinder, lower cover 13 covers the discharge outlet 15 that is provided with the fixed jacket cylinder, described upper cover 12 and lower cover 13 are threaded with the cylinder 11 at middle part, what be provided with 3 series connection in fixed jacket cylinder 1 changes film filter 21, 22, the Millipore Swinnex of 23(25mm disk filter membrane), previous discharge outlet of changing film filter is connected with the water inlet that the next one changes film filter, so that 3 changed film filter series connection, from top to down, first, the second and the 3rd changes film filter 21, 22, filter membrane aperture in 23 is respectively 20 μ m, the filter membrane of 3 μ m and 0.45 μ m, the water inlet 14 that the first water inlet 211 that changes film filter 21 passes fixed jacket cylinder 1 is connected with the fluid injection joint of syringe 3, the 3rd discharge outlet 231 of changing film filter 23 is connected with the discharge outlet 15 of fixed jacket cylinder 1, the fixed jacket cylinder adopts plastics PP material to be processed into, its internal diameter is consistent with the external diameter that changes film filter, high consistent with the height that changes film filter after combination in it, so that fixing, fixed jacket cylinder 1 changes film filter, the discharge outlet 15 screw thread external rubber pipes 4 of described fixed jacket cylinder, an other end of sebific duct 4 is put into container 5, to collect filter liquide.
the portable classified filtering device applicable to gathering phytoplankton of the present embodiment is to use like this: the liquid (seawater or fresh water) that contains phytoplankton is housed in syringe 3, the fluid injection joint of syringe 3 is received the water inlet 211 that first on upper cover 12 changes film filter, with hand propelled syringe 3, liquid is pressed into and changes in film filter, because the filter membrane that changes film filter is arranged in order from big to small, therefore the phytoplankton in liquid is trapped within on the filter membrane that changes film filter from big to small successively, the liquid that filters is discharged to enter container 5 through sebific duct 4 from the discharge outlet 15 of fixed jacket cylinder and is collected, filter complete after, recycling syringe 3 is pressed into 1-2 air and changes liquid residual in film filter with emptying, classified filtering is completed, open upper cover 12 or lower cover 13, film filter is changed in taking-up, the phytoplankton on the film filter filter membrane is changed in collection, preserve sample.The classified filtering sample collection is complete.
The inventor carries out spot sampling with the portable classified filtering device applicable to gathering phytoplankton of above-described embodiment 1 to Guangdong Province Daya Bay nuclear power plant surrounding waters in 7 monthly interests in 2012.Gather the phytoplankton sample of the different erect-position point surface waters in this marine site, each erect-position has gathered respectively the phytoplankton sample of three kinds of size fractionated, and the concentrating sample on each filter membrane will be respectively used to the analysis of phytoplankton chlorophyll a fractionation testing and gene expression pattern.
Result shows, and is better applicable to the phytoplankton classification efficiency that the portable classified filtering device that gathers phytoplankton gathers.When not using the fixed jacket cylinder, filtered sample occurs easily changing that the film filter series connection is unstable and the phenomenon of disintegrating had both been wasted sample and filter membrane, loses time again.
Claims (3)
1. one kind applicable to the portable classified filtering device that gathers phytoplankton, it is characterized in that, comprise the fixed jacket cylinder, top at the fixed jacket cylinder is provided with water inlet, bottom at the fixed jacket cylinder is provided with discharge outlet, be provided with the film filter that changes of several series connection in the fixed jacket cylinder, previous discharge outlet of changing film filter is connected with the water inlet that the next one changes film filter, so that several change the film filter series connection, and the filter membrane pore size that changes in film filter diminishes step by step, the water inlet that first water inlet that changes film filter passes the fixed jacket cylinder is connected with the fluid injection joint of syringe, last discharge outlet of changing film filter is connected with the discharge outlet of fixed jacket cylinder, the fixed jacket cylinder adapts with the shape of changing film filter and changes film filter so that the fixed jacket cylinder is fixed, the fixed jacket cylinder is detachably opened, can take out the film filter that changes of its inside.
2. the portable classified filtering device applicable to gathering phytoplankton according to claim 1, is characterized in that, the discharge outlet of described fixed jacket cylinder is connected with container through sebific duct.
3. the portable classified filtering device applicable to gathering phytoplankton according to claim 1, it is characterized in that, described fixed jacket cylinder comprises cylinder and movable upper cover and the lower cover that is placed in the cylinder two ends at middle part, the water inlet of described fixed jacket cylinder is provided with upper cover and covers, the discharge outlet of described fixed jacket cylinder is provided with lower cover and covers, and the upper cover of described fixed jacket cylinder and lower cover are threaded with the cylinder at middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220591060 CN202942725U (en) | 2012-11-09 | 2012-11-09 | Portable classifying filtering device applicable to collection of phytoplankton |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220591060 CN202942725U (en) | 2012-11-09 | 2012-11-09 | Portable classifying filtering device applicable to collection of phytoplankton |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202942725U true CN202942725U (en) | 2013-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220591060 Expired - Fee Related CN202942725U (en) | 2012-11-09 | 2012-11-09 | Portable classifying filtering device applicable to collection of phytoplankton |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202942725U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104677691A (en) * | 2015-02-17 | 2015-06-03 | 大连理工大学 | Grading sectional acquisition apparatus for water body suspended solids |
| CN109916653A (en) * | 2019-02-25 | 2019-06-21 | 浙江大学 | A kind of Deep-Sea Microorganisms sampling apparatus based on foldable filter element structure |
| CN111122783A (en) * | 2019-12-27 | 2020-05-08 | 河海大学 | Device and method for in-situ nutrient addition experiment |
| CN113800599A (en) * | 2021-08-30 | 2021-12-17 | 中国极地研究中心(中国极地研究所) | Filtering device, filtering method and filtering system for continuously grading water particulate matters |
-
2012
- 2012-11-09 CN CN 201220591060 patent/CN202942725U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104677691A (en) * | 2015-02-17 | 2015-06-03 | 大连理工大学 | Grading sectional acquisition apparatus for water body suspended solids |
| CN104677691B (en) * | 2015-02-17 | 2017-04-12 | 大连理工大学 | Grading sectional acquisition apparatus for water body suspended solids |
| CN109916653A (en) * | 2019-02-25 | 2019-06-21 | 浙江大学 | A kind of Deep-Sea Microorganisms sampling apparatus based on foldable filter element structure |
| CN111122783A (en) * | 2019-12-27 | 2020-05-08 | 河海大学 | Device and method for in-situ nutrient addition experiment |
| CN111122783B (en) * | 2019-12-27 | 2021-09-17 | 河海大学 | Device and method for in-situ nutrient addition experiment |
| CN113800599A (en) * | 2021-08-30 | 2021-12-17 | 中国极地研究中心(中国极地研究所) | Filtering device, filtering method and filtering system for continuously grading water particulate matters |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20161109 |