CN115364673A - Water chlorophyll a granular structure filter equipment - Google Patents
Water chlorophyll a granular structure filter equipment Download PDFInfo
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- CN115364673A CN115364673A CN202210864570.XA CN202210864570A CN115364673A CN 115364673 A CN115364673 A CN 115364673A CN 202210864570 A CN202210864570 A CN 202210864570A CN 115364673 A CN115364673 A CN 115364673A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/58—Multistep processes
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Abstract
The invention discloses a water chlorophyll a particle size structure filtering device. The method aims to solve the problems that in the prior art, only one type of filter paper can be used each time, and when the photosynthetic plankton with different specifications contributes to the total chlorophyll a, multiple times of filtration and separation are needed, and the steps are complicated; the invention includes: taking a water bottle, and containing a sample to be filtered and separated; the filtering component is used for sequentially filtering and separating the photosynthetic plankton in the sample to be filtered and separated according to the filtering grades from large to small; a container for containing the filtered and separated sample; and the suction pump is connected with the container and drives to promote the sample to flow. The method can realize grading filtration from top to bottom at one time, obtain photosynthetic plankton of different sizes and grades required by analysis through one-time separation, analyze the contribution of the photosynthetic plankton of different sizes and grades to the total chlorophyll a, and has a simple process.
Description
Technical Field
The invention relates to the field of chlorophyll filtration, in particular to a water chlorophyll a-grade structure filtering device.
Background
Chlorophyll (chlorophyllil) is an important photosynthetic pigment in plant photosynthesis and can be divided into four types, namely a, b, c and d. Chlorophyll a is present in all phytoplankton, approximately 1% to 2% of the organic dry weight. Chlorophyll a is harmless to the environment, but is an important index for estimating the biomass of phytoplankton, the primary productivity condition and the eutrophication level of the water body can be mastered by measuring the content of chlorophyll a of the phytoplankton in the water, and the content of chlorophyll a is one of indexes for evaluating the eutrophication of the water body in environmental monitoring. The massive growth of phytoplankton is a major phenomenon of eutrophication of bodies of water, where chlorophyll a is the type of chlorophyll contained in all phytoplankton phyla. The method not only can be used as an important index for dividing the water body nutrition state, but also can be used for representing the existing stock of phytoplankton.
The chlorophyll a filtering device used in normal times can only use one specification of filter paper, for example, firstly using a 20 μm filter membrane to filter, pouring out water, then using a 2 μm filter membrane, pouring out water again, and then using a 0.2 μm filter membrane. For example, a chinese patent document discloses "a chlorophyll a measurement sample sampling apparatus" having publication No. CN215727052U, which comprises a water intake device, a filter device, a container, and a suction pump, wherein the water intake device is connected to the container through the filter device, and the suction pump is connected to the container. This scheme is optimized current water sampler through setting up water intake device, filter equipment and container, can adopt water, filter and grinding work at the scene, obtains the experimental sample, improves the experimental efficiency, and is easy and simple to handle, swift, easily preserves the transportation and deposits. However, the scheme can only use filter paper of one specification each time, and needs to filter and separate for many times when analyzing the contribution of photosynthetic plankton of different specifications to the total chlorophyll a, and the steps are complicated.
Disclosure of Invention
The method mainly solves the problems that in the prior art, only one type of filter paper can be used at a time, and when photosynthetic plankton with different specifications contributes to the total chlorophyll a, multiple times of filtering and separation are needed, and the steps are complicated; provides a filtering device with a chlorophyll a grade structure for a water body.
The technical problem of the invention is mainly solved by the following technical scheme:
a water chlorophyll a-grade structure filter device, comprising:
taking a water bottle, and containing a sample to be filtered and separated;
the filtering component is used for sequentially filtering and separating the photosynthetic plankton in the sample to be filtered and separated according to the filtering grades from large to small;
a container for containing the filtered and separated sample;
and the suction filter pump is connected with the container and drives to promote the sample to flow.
The design of this scheme can make once only from top to bottom realize the hierarchical filtration, and the required photosynthetic plankton of not equidimension grade of analysis is obtained in once only separation, analyzes the contribution of photosynthetic plankton of not equidimension grade to total chlorophyll a, and the process is simple.
Preferably, the filtering assembly comprises an assembly shell and a multi-stage filtering membrane layer; the component shell is used for connecting the water taking bottle and the container; the multi-stage filter membrane layers are sequentially arranged in the module shell along the flow direction of the sample. The photosynthetic plankton of different size grades that the analysis needs is obtained to once only separate.
Preferably, the multistage filter membrane layer sequentially comprises a first stage filter membrane layer with the filter membrane aperture of 20 microns, a second stage filter membrane layer with the filter membrane aperture of 2 microns and a third stage filter membrane layer with the filter membrane aperture of 0.2 microns along the sample flow direction. Analyzing and determining the net fraction with the cell particle size of more than 20 microns, the nano fraction with the cell particle size of 2-20 microns and the pico fraction with the cell particle size of 0.2-2 microns, wherein the photosynthetic plankton contributes to the total chlorophyll a.
Preferably, the multi-stage filter membrane layers respectively comprise:
the filter membrane is used for filtering photosynthetic plankton with corresponding size;
the side wall of the clamping table is abutted against the component shell, and the hollow part in the center clamps the filter membrane;
and the air bag is arranged along the bottom edge of the clamping table.
The air bag is arranged, the filter membrane layer can float up and down along with the liquid level of the lower layer, the limited space of the filter assembly can be fully utilized, the filtering efficiency is improved, and the space of each filter layer is ensured.
Preferably, a spiral convex rib is arranged on the inner wall of the assembly shell along the flow direction of the sample; the lateral wall of the filter membrane layer is provided with a matched limit groove. Through spiral rising's protruding muscle, with reciprocating of filter membrane layer along with rotatory for the sample can filter out from the filtration pore uniformly, avoids the small-size photosynthetic plankton's that the jam of heavy-calibre caused residue, guarantees the rate of accuracy that detects.
Preferably, the third-stage filter membrane layer comprises a filter membrane and a clamping base; the clamping base comprises a hollow clamping part and a supporting part; the filter membrane is clamped in the hollow clamping part, and the side wall of the hollow clamping part is abutted against the inner wall of the bottom outlet of the component shell; the supporting part is abutted against the bottom outlet edge of the assembly shell; the edge of the container inlet is provided with a convex rib, and the inner wall side of the supporting part is provided with a buckle matched with the convex rib of the container inlet. The setting of third pole filter film layer is in filter element's bottom, with the entry joint of container, can enough stably be connected filter element and container, makes things convenient for the dismouting, can filter minimum photosynthetic plankton again, make full use of filter film layer.
Preferably, a sealing ring is arranged between the side wall of the clamping base and the inner wall of the assembly shell. Preventing the sample from directly leaking out.
Preferably, the water taking bottle is provided with a multi-stage cavity along the flow direction of the sample, and the volumes of the multi-stage cavities are reduced in sequence. The multistage cavities are arranged, so that samples are concentrated step by step, and the filtering efficiency is improved.
Preferably, the inlet of the water taking bottle is provided with an adaptive bottle cap, and the bottle cap is uniformly provided with a plurality of air inlets. Prevent the external interference from entering the water taking bottle.
The beneficial effects of the invention are:
1. the multistage filter membrane layer is arranged, so that the grading filtration is realized from top to bottom at one time, the photosynthetic plankton of different sizes and grades required by analysis is obtained through one-time separation, the contribution of the photosynthetic plankton of different sizes and grades to the total chlorophyll a is analyzed, and the process is simple.
2. The air bag is arranged below the filter membrane layer, the filter membrane layer can float up and down along with the liquid level of the lower layer, the limited space of the filter assembly can be fully utilized, the filtering efficiency is improved, and the space of each filter layer is ensured.
3. Through the protruding muscle that spiral shell screwing in rose, with reciprocating of filter membrane layer along with rotatory for the sample can filter out from the filtration pore uniformly, avoids the blocking of heavy-calibre to cause the photosynthetic plankton of small volume to remain, guarantees the rate of accuracy that detects.
4. The setting of third pole filter film layer is in filter element's bottom, with the entry joint of container, can enough stably be connected filter element and container, makes things convenient for the dismouting, can filter minimum photosynthetic plankton again, make full use of filter film layer.
5. The water taking bottle is provided with the multistage containing cavities, so that samples are concentrated step by step, and the filtering efficiency is improved.
Drawings
FIG. 1 is a schematic structural diagram of a water chlorophyll a particle size structure filtering device of the present invention.
Fig. 2 is a schematic diagram of the construction of the filter assembly of the present invention.
In the figure, 1, a water taking bottle, 2, a filtering component, 3, a container, 4, a suction pump, 5, a component shell, 6, a filtering membrane layer, 6-1, a first filtering membrane layer, 6-2, a second filtering membrane layer, 6-3, a third filtering membrane layer, 7, a filtering membrane, 8, a clamping table, 9, an air bag, 10, a clamping base, 11, a sealing ring, 12, a bottle cap and 13 are samples.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
The first embodiment is as follows:
the water chlorophyll a particle size fraction structure filtering device of this embodiment, as shown in fig. 1, includes water intaking bottle 1, filtering component 2, container 3 and suction filtration pump 4.
The outlet of the water taking bottle 1 is inserted into the inlet at the upper end of the filtering component 2, and the outlet at the lower end of the filtering component 2 is clamped at the inlet of the container 3. The suction pump 4 is connected with the container 3, and the suction pump 4 drives and promotes the flow of the sample 13.
The sample to be filtered and separated is contained in the water taking bottle 1, the water taking bottle 1 is provided with a multi-stage containing cavity along the flowing direction of the sample 13, and the volume of the multi-stage containing cavity is reduced in sequence. In this embodiment, the water bottle 1 is provided with three-level cavities, and each cavity decreases from top to bottom in sequence. And a multi-stage cavity is arranged, so that the sample 13 is concentrated step by step, and the filtering efficiency is improved.
An adaptive bottle cap 12 is arranged at the inlet of the water taking bottle 1, and a plurality of air inlets (not shown in the figure) are uniformly arranged on the bottle cap 12. The bottle cap 12 is arranged to prevent external interference from entering the water taking bottle 1, and the air inlet hole in the bottle cap 12 is used for keeping the internal and external circulation of the device, so that the sample 13 can smoothly flow when the suction filter pump 4 is started.
The filtering component 2 filters and separates the photosynthetic plankton in the sample to be filtered and separated according to the filtering grade from large to small.
The filtration module 2 includes a module housing 5 and a multi-stage filtration membrane layer 6. The assembly housing 5 is used for connecting the water taking bottle 1 and the container 3. The multi-stage filter membrane layers 6 are arranged in sequence in the flow direction of the sample in the module case 5.
In this embodiment, the multi-stage filter membrane layer 6 comprises, in order from top to bottom along the sample flow direction, a first stage filter membrane layer 6-1 with a filter membrane pore size of 20 μm, a second stage filter membrane layer 6-2 with a filter membrane pore size of 2 μm, and a third stage filter membrane layer 6-3 with a filter membrane pore size of 0.2 μm.
Through the arrangement of the three filter membrane layers in the embodiment, the net fraction with the cell particle size of more than 20 microns, the nano fraction with the cell particle size of 2-20 microns and the pico fraction with the cell particle size of 0.2-2 microns are analyzed and determined to contribute to the total chlorophyll a by photosynthetic plankton.
The vessel 3 contains the filtered sample 13. In this embodiment, the container 3 is a conical bottle, and the mouth of the conical bottle is provided with a convex rib protruding outwards.
When the filtering device of the embodiment is used, the outlet of the water taking bottle 1 is inserted into the filtering component 2 from the inlet of the filtering component 2, the three-stage filter membrane layers 6 are sequentially plugged into the component shell 5 from the bottom of the component shell 5 according to the sizes of the filter membranes, and the side walls of the filter membrane layers 6 are abutted against the inside of the component shell 5. The bottom of the filter assembly 2 is clamped with the inlet of the container 3, and the suction pump 4 is connected to the container 3.
Pouring a specific volume of the sample 13 to be filtered and separated into the water bottle 1 from the upper inlet (after pouring, the bottle cap 12 is covered, the suction pump 4 is opened), allowing the sample 13 to sequentially pass through each stage of filter membrane layer in the filter assembly, separating photosynthetic plankton with different sizes, and allowing the filtered and separated sample 13 to enter the container 3.
And (3) closing the suction filter pump 4 after the filtration and separation are finished, disassembling the filter assembly 2, taking the multistage filter membrane layer 6 out of the assembly shell 5 in sequence, observing the photosynthetic plankton separated on the filter membrane, and analyzing and determining net fractions with the cell particle size of more than 20 mu m, nano fractions with the cell particle size of 2-20 mu m and pico fractions with the cell particle size of 0.2-2 mu m, wherein the contribution of the photosynthetic plankton to the total chlorophyll a is determined.
The design of this embodiment can make once only from top to bottom realize the hierarchical filtration, and the photosynthetic plankton of different size grades that once only separation obtained the analysis and required analyzes, analyzes the contribution of photosynthetic plankton of different size grades to total chlorophyll a, and the process is simple.
The second embodiment:
the structure of the multistage filter membrane layer 6 in the filter component 2 is optimized by the water body chlorophyll a particle size structure filter device of the embodiment.
As shown in fig. 2, the multistage filter membrane layer 6 includes a filter membrane 7, a holding stage 8, and a balloon 9, respectively.
In this embodiment, the clamping table 8 is an annular table with a hollow center, and the outer side wall of the clamping table 8 abuts against the inner side wall of the component housing 5. The filter membrane 7 is by the central fretwork portion of centre gripping in the centre gripping platform 8, in this embodiment, is provided with the draw-in groove of adaptation filter membrane 7 on the inner wall of the 8 central fretwork portions of centre gripping platform, and the draw-in groove joint is passed through in the centre gripping platform 8 in the edge of filter membrane 7. An air bag 9 is arranged below the clamping table 8.
The filter membrane 7 filters photosynthetic plankton of the corresponding size.
Set up gasbag 9, filtration membrane layer 6 can float from top to bottom along with the liquid level of lower floor, can make full use of filter assembly 2 limited space, improves filtration efficiency, guarantees the space of each filter layer.
Each filter membrane layer 6 reciprocates along with the liquid level height of lower floor, and the height of each layer is adjusted to the adaptability, compares with the filter membrane layer of fixed setting, make full use of subassembly casing 5's finite space, has reduced filter assembly 2's volume.
In this embodiment, only the structure of the multi-stage filter layer 6 is optimized, and the other contents are the same as those of the first embodiment.
Example three:
the water chlorophyll a granular structure filtering device of the embodiment optimizes the structure of the filtering component 2.
The inner wall of the module housing 5 is provided with a spiral rib (not shown in the figure) along the sample flowing direction, i.e. a plurality of spiral ribs from bottom to bottom are arranged along the inner wall color of the module housing 5.
The side wall of the filter membrane layer 6, namely the outer side wall of the clamping table 8 is provided with a limit groove matched with the spiral convex rib. Through the protruding muscle that spiral shell screwing in rose, with reciprocating of filter membrane layer 6 along with rotatory for sample 13 can filter out from the filtration pore uniformly, avoids the jam of heavy-calibre to cause the photosynthetic plankton of small volume to remain, guarantees the rate of accuracy that detects.
In this embodiment, only the structure of the filter assembly 2 is optimized, and the other contents are the same as those of the second embodiment.
Example four:
the water chlorophyll a particle size fraction structure filtering device of the embodiment optimizes the structure of the third-stage filter membrane layer 6-3.
As shown in fig. 2, the third stage filter membrane layer 6-3 includes a filter membrane 7 and a clamping base 10. The clamping base 10 includes a hollow clamping portion and a supporting portion.
In this embodiment, the clamping base 10 is an annular platform with a hollow middle, and the side wall of the hollow clamping portion of the clamping base 10 abuts against the inner wall of the bottom outlet of the component housing 5. The joint of filter membrane 7 is in the fretwork clamping part, in this embodiment, is provided with the draw-in groove of adaptation filter membrane 7 on the inner wall of 8 central authorities' fretwork clamping parts of centre gripping platform, and the draw-in groove joint is passed through in the centre gripping base in the edge of filter membrane 7.
The support part abuts against the bottom outlet edge of the module housing 5. The inner wall side of the supporting part is provided with a buckle matched with the convex rib of the container inlet. A sealing ring 11 is arranged between the side wall of the clamping base 10 and the inner wall of the assembly shell 5. Preventing the sample from directly leaking out.
The third-stage filter membrane layer 6-3 is arranged at the bottom of the filter assembly and is clamped with the inlet of the container 3, so that the filter assembly 2 and the container 3 can be stably connected, the disassembly and the assembly are convenient, the minimum photosynthetic plankton can be filtered, and the filter membrane layer 6 is fully utilized.
It should be understood that the examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Claims (9)
1. The utility model provides a water chlorophyll a granular structure filter equipment which characterized in that includes:
taking a water bottle (1) and containing a sample to be filtered and separated;
the filtering component (2) is used for sequentially filtering and separating the photosynthetic plankton in the sample to be filtered and separated according to filtering grades from large to small in size;
a container (3) for containing the filtered and separated sample;
and the suction filter pump (4) is connected with the container and drives to promote the sample to flow.
2. The water body chlorophyll a particle size fraction structure filtration device of claim 1, wherein the filtration module comprises a module housing (5) and a multi-stage filtration membrane layer (6); the component shell is used for connecting the water taking bottle and the container; the multistage filter membrane layers are sequentially arranged in the module housing along the flow direction of the sample.
3. The water chlorophyll a particle size structure filtration apparatus according to claim 1 or 2, wherein the multistage filter membrane layer comprises, in order along a sample flow direction, a first stage filter membrane layer (6-1) having a filter membrane pore size of 20 μm, a second stage filter membrane layer (6-2) having a filter membrane pore size of 2 μm, and a third stage filter membrane layer (6-3) having a filter membrane pore size of 0.2 μm.
4. The water body chlorophyll a particle size fraction structure filtering device according to claim 3, wherein said multiple filter membrane layers respectively comprise:
a filter membrane (7) for filtering photosynthetic plankton of a corresponding size;
a clamping table (8), the side wall of which is propped against the component shell, and the hollow part at the center clamps the filter membrane;
and the air bag (9) is arranged along the bottom edge of the clamping table.
5. The water chlorophyll a size fraction structure filtration apparatus according to claim 2 or 4, wherein a helical rib is provided on an inner wall of the module housing along a sample flow direction; the lateral wall of the filter membrane layer is provided with a matched limit groove.
6. The water chlorophyll a particle size fraction structural filtration apparatus of claim 3, wherein said third stage filter membrane layer comprises a filter membrane and a clamping base (10); the clamping base comprises a hollow clamping part and a supporting part; the filter membrane is clamped in the hollow clamping part, and the side wall of the hollow clamping part is abutted against the inner wall of the bottom outlet of the component shell; the supporting part is abutted against the bottom outlet edge of the assembly shell; the edge of the container inlet is provided with a convex rib, and the inner wall side of the supporting part is provided with a buckle matched with the convex rib of the container inlet.
7. The water body chlorophyll a size fraction structure filtering device according to claim 6, wherein a sealing ring (11) is provided between the side wall of the clamping base and the inner wall of the assembly housing.
8. The water body chlorophyll a particle size fraction structure filtering device according to claim 1, wherein a plurality of stages of cavities are arranged in the water intake bottle along a sample flow direction, and the volumes of the plurality of stages of cavities are sequentially reduced.
9. The water chlorophyll a particle size fraction structure filtering device as claimed in claim 1 or 8, wherein an inlet of the water-taking bottle is provided with an adaptive bottle cap (12), and a plurality of air inlets are uniformly arranged on the bottle cap.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210864570.XA CN115364673A (en) | 2022-07-21 | 2022-07-21 | Water chlorophyll a granular structure filter equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210864570.XA CN115364673A (en) | 2022-07-21 | 2022-07-21 | Water chlorophyll a granular structure filter equipment |
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| JP2016196028A (en) * | 2015-04-06 | 2016-11-24 | 株式会社杉原工業 | Screw deliquoring machine |
| CN207445709U (en) * | 2017-11-16 | 2018-06-05 | 成都华田生物技术有限公司 | For the filter device of separating natural product |
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