CN111035981B - Phytoplankton filter-pressing device in sea water - Google Patents
Phytoplankton filter-pressing device in sea water Download PDFInfo
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- CN111035981B CN111035981B CN201911199766.6A CN201911199766A CN111035981B CN 111035981 B CN111035981 B CN 111035981B CN 201911199766 A CN201911199766 A CN 201911199766A CN 111035981 B CN111035981 B CN 111035981B
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- filtering
- cylinder
- thick bamboo
- fixed
- filter
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- 239000013535 sea water Substances 0.000 title claims abstract description 15
- 238000001914 filtration Methods 0.000 claims abstract description 78
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 20
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 20
- 241001330002 Bambuseae Species 0.000 claims description 20
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 20
- 239000011425 bamboo Substances 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 6
- 230000006978 adaptation Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 24
- 230000000694 effects Effects 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 2
- 239000000706 filtrate Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 241000143060 Americamysis bahia Species 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering elements
- B01D29/35—Self-supporting filtering elements arranged for outward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/90—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding
Abstract
The invention discloses a filter pressing device for phytoplankton in seawater, which comprises a straight cylinder, a filtering side cylinder and a push-pull rod, wherein the upper end of the straight cylinder is open, the lower end of the straight cylinder is closed, a drain pipe is arranged at the lower part of the outer side surface of the straight cylinder, the filtering side cylinder is obliquely fixed on the outer side surface of the straight cylinder, the filtering side cylinder is communicated with the inner space of the straight cylinder, a cylindrical filtering piece with an open upper end is arranged in the filtering side cylinder, a gap is reserved between the cylindrical filtering piece and the inner wall of the filtering side cylinder, a filtering liquid channel is formed by the gap, a feeding area is formed by the space of the straight cylinder above the cylindrical filtering piece, a filtering area is formed by the space of the straight cylinder below the cylindrical filtering piece, a cylinder cover is fixed at the upper end of the straight cylinder, the push-pull rod penetrates through the cylinder cover and is in sliding fit with the cylinder cover, a piston is fixed at the lower end of the push-pull rod, and a push-pull head is fixed at the upper end of the push-pull rod. The invention has novel structure, convenient carrying and disassembly, simple operation, high filtering efficiency and good filtering effect, and is suitable for filtering water samples on site.
Description
Technical Field
The invention relates to a filter device, in particular to a filter pressing device for phytoplankton in seawater.
Background
Phytoplankton, also called phytoplankton, is the sum of several kinds of algae living in suspension in water. Phytoplankton and productivity thereof are one of important members and important functions of an aquatic ecosystem, and are important components of natural fish bait. Since phytoplankton is very sensitive to environmental changes, it also plays an important role in environmental monitoring. In the marine environment, phytoplankton converts solar energy into organic energy through photosynthesis, and provides food for high-nutrition-level organisms such as zooplankton, fishes and shrimps, so that the stability of the ecosystem is greatly reflected by the phytoplankton community characteristics in seawater, and the phytoplankton survey is developed to help to know the health condition of the marine ecosystem.
At present, when a phytoplankton sample in seawater is collected, the collected water sample is usually added into formalin for fixation (the final concentration is 5 percent), and then the fixed water sample is brought back to a laboratory, and then the phytoplankton and the water are subjected to solid-liquid separation. The collected water sample has large volume and weight and is inconvenient to carry.
In addition, the Chinese patent with publication No. CN 106769380B and publication No. 2019, 3 and 5 discloses a device for separating and concentrating phytoplankton on site, which comprises a primary filtering unit, a secondary filtering unit and a water storage tank; the filtered water of the first-stage filtering unit can completely fall into the second-stage filtering unit, and the filtered water of the second-stage filtering unit can completely fall into the water storage tank. The filtering device has at least the following defects: the phytoplankton is filtered by the secondary filtering bolting-silk, the bolting-silk is softer, has weak overload capacity and poor bearing capacity, and is easy to pull down and even fall off due to gravity when in use; (2) the phytoplankton is sticky, can be firmly attached to the surface of the bolting-silk, is not easy to elute from the surface of the bolting-silk, and can block the sieve pores of the bolting-silk, thereby greatly influencing the filtration efficiency.
Disclosure of Invention
The invention aims to solve the problems of phytoplankton in the prior art, and provides the filter pressing device for the phytoplankton in seawater, which is novel in structure, convenient to carry, disassemble and assemble, simple to operate, high in filtering efficiency, good in filtering effect and good in use stability.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention relates to a filter pressing device for phytoplankton in seawater, which comprises a straight cylinder, a filtering side cylinder and a push-pull rod, wherein the upper end of the straight cylinder is open, the lower end of the straight cylinder is closed, a drain pipe is arranged at the lower part of the outer side surface of the straight cylinder, the filtering side cylinder is obliquely fixed on the outer side surface of the straight cylinder, the filtering side cylinder is communicated with the inner space of the straight cylinder, a cylindrical filtering piece with an open upper end is arranged in the filtering side cylinder, a gap is reserved between the cylindrical filtering piece and the inner wall of the filtering side cylinder, a filtrate channel is formed in the gap, a feeding area is formed in the space above the cylindrical filtering piece of the straight cylinder, a filtering area is formed in the space below the cylindrical filtering piece of the straight cylinder, a cylinder cover is fixed at the upper end of the straight cylinder, the push-pull rod penetrates through the cylinder cover and is in sliding fit with the cylinder cover, a piston is fixed at the lower end of the push-pull rod, and a push-pull head is fixed at the upper end of the push-pull rod. According to the invention, the filter pressing principle is utilized to accelerate the filtering speed of a water sample, the water sample is loaded into a feeding area in a straight cylinder, a push-pull rod is pressed down to push the push-pull rod to enable a piston to move downwards, the water sample enters a cylindrical filter piece in a filtering side cylinder to be filtered under the action of pressure, phytoplankton is trapped in the cylindrical filter piece, the cylindrical filter piece can be a single-layer filter layer or a plurality of filter layers, the filter material is not limited, as long as the filtering action of the phytoplankton can be realized, and the filtered water enters a filtering area and is discharged through a drain pipe; filter side section of thick bamboo slope and be fixed in straight section of thick bamboo lateral surface, filter side section of thick bamboo slope setting and make the tube-shape filter the also corresponding slope of piece for the water sample slant erodees the inner wall that the tube-shape filtered the piece, thereby filter the phytoplankton of piece to the bottom with the tube-shape and collect, difficult adhesion blocks up the filtration pore on the tube-shape filtered the piece on the inner wall of piece, is favorable to improving filtration efficiency. The invention has simple structure, small volume and convenient carrying, and is suitable for filtering water samples on site.
Preferably, the included angle alpha between the filtering side cylinder and the straight cylinder is 30-60 degrees. The included angle alpha between the filtering side cylinder and the straight cylinder is 30-60 degrees, so that water flow can pass through the filtering side cylinder conveniently.
Preferably, an annular limiting part is arranged in the straight cylinder, and the end face of the open end of the cylindrical filtering piece abuts against the annular limiting part. The open end face of the tubular filtering piece is abutted against the annular limiting part, and the tubular filtering piece is completely contacted and attached to the annular limiting part and is placed stably.
Preferably, an annular flange is arranged on the outer side of the opening of the cylindrical filter piece, an annular limiting notch is formed in the annular limiting portion, and the annular flange is matched with the limiting notch. The spacing gap can prevent the tubular filtering piece from shaking during filtering, so that the use stability is improved
Preferably, the lower end of the filtering side cylinder is open, and the lower end of the filtering side cylinder is in threaded connection with a fastening cover which is in pressure joint with the lower end face of the cylindrical filtering piece. The lower extreme threaded connection who filters the side section of thick bamboo has the fastening cover, unscrews fastening cover alright dismouting tube-shape and filters, and the dismouting is very convenient.
Preferably, a base is fixed at the lower end of the straight cylinder. The base can improve the stability of the invention when placed.
Preferably, a linear bearing is fixed in the cylinder cover, the push-pull rod penetrates through the linear bearing, a sealing ring is fixed on the outer side of the inner end face of the linear bearing, and a retaining ring is fixed on the outer side of the outer end face of the linear bearing. The linear bearing ensures that the push-pull rod can move up and down along a straight line, and saves more labor during operation.
Preferably, a limit stop ring is arranged in the straight cylinder and is positioned below the piston.
Preferably, an O-ring is disposed on an outer circumferential surface of the piston.
Therefore, the invention has the following beneficial effects: novel structure carries and easy dismounting, and easy operation utilizes the principle of filter-pressing to accelerate the filter velocity of water sample, and the phytoplankton on the tube-shape filtration piece inner wall is washed to the bottom and is collected when filtering simultaneously, and difficult adhesion blocks up the filtration pore on the tube-shape filtration piece inner wall, and filtration efficiency is high, and the filter effect is good, is fit for carrying out filtering operation to the water sample at the scene.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Fig. 3 is a partially enlarged view of fig. 1 at B.
In the figure: the filter comprises a straight cylinder 1, a filter side cylinder 2, a push-pull rod 3, a drain pipe 4, a cylindrical filter piece 5, a filtrate channel 6, a feeding area 7, a filtering area 8, a cylinder cover 9, a piston 10, a push-pull head 11, an annular limiting part 12, an annular flange 13, a limiting notch 14, a fastening cover 15, a base 16, a linear bearing 17, a sealing ring 18, a check ring 19 and a limiting check ring 20.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in figure 1, a filter pressing device for phytoplankton in seawater comprises a straight cylinder 1, a filtering side cylinder 2 and a push-pull rod 3, wherein the upper end of the straight cylinder is open, the lower end of the straight cylinder is closed, a base 16 is fixed at the lower end of the straight cylinder, a drain pipe 4 is fixed at the lower part of the outer side surface of the straight cylinder, the filtering side cylinder is obliquely fixed on the outer side surface of the straight cylinder, an included angle alpha between the filtering side cylinder and the straight cylinder is 45 degrees, the filtering side cylinder is communicated with the inner space of the straight cylinder, a cylindrical filtering piece 5 (a filtering cylinder or a filtering basket) with an open upper end is arranged in the filtering side cylinder, an annular limiting part 12 is arranged in the straight cylinder, an annular limiting notch 14 is arranged on the annular limiting part, an annular flange 13 is fixed at the outer side of the opening of the cylindrical filtering piece, the end surface of the cylindrical filtering piece abuts against the annular limiting part, the annular flange is matched with the limiting notch, the lower end of the filtering side cylinder is open, and the lower end of the filtering side cylinder is in threaded connection with a fastening cover 15, the fastening cover is in compression joint with the lower end face of the cylindrical filter piece, a gap is reserved between the cylindrical filter piece and the inner wall of the filter side barrel, the gap forms a filtrate channel 6 (shown in figure 2), a feeding area 7 is formed in a space above the cylindrical filter piece of the straight barrel, a filtering area 8 is formed in a space below the cylindrical filter piece of the straight barrel, a barrel cover 9 is fixed at the upper end of the straight barrel, a linear bearing 17 (shown in figure 3) is fixed in the barrel cover, a push-pull rod penetrates through the linear bearing, a sealing ring 18 is fixed on the outer side of the inner end face of the linear bearing, a retaining ring 19 is fixed on the outer side of the outer end face of the linear bearing, a piston 10 is fixed at the lower end of the push-pull rod, an O-shaped sealing ring is installed on the outer circumferential surface of the piston, an annular limiting retaining ring 20 is fixed at the position below the piston on the inner wall of the straight barrel, and a push-pull head 11 is fixed at the upper end of the push-pull rod.
The using method of the invention comprises the following steps: the filter is stably placed on the ground, the cylinder cover is taken down, a water sample is poured into the straight cylinder, the cylinder cover is covered, the pull head is pressed downwards to enable the piston to move downwards, the water sample enters the cylindrical filter piece in the filter side cylinder under the action of pressure to be rapidly filtered, phytoplankton is intercepted on the inner wall of the cylindrical filter piece and flows to the bottom of the cylindrical filter piece to be collected under the continuous scouring of water flow, and water filtered from the cylindrical filter piece enters a filtering area and is discharged through the drain pipe. The invention has simple structure, small volume and convenient carrying, can improve the filtering efficiency and is very suitable for filtering water samples on site.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.
Claims (6)
1. The utility model provides a phytoplankton filter-pressing device in sea water, its characterized in that, includes a straight section of thick bamboo (1), filters a side section of thick bamboo (2) and push-and-pull rod (3), the upper end of a straight section of thick bamboo is uncovered, and the lower extreme of a straight section of thick bamboo is sealed, and the lateral surface lower part of a straight section of thick bamboo is equipped with drain pipe (4), it is fixed in a straight section of thick bamboo lateral surface to filter a side section of thick bamboo slope, filters the contained angle alpha between a side section of thick bamboo and the straight section of thick bamboo and is 30~60, filters a side section of thick bamboo and is linked together with a straight section of thick bamboo inner space, is equipped with upper end open-ended tube-shape filter piece (5) in the side section of thick bamboo of filtering, leave the clearance between tube-shape filter piece and the inner wall of a side section of thick bamboo, this clearance forms filtrating passageway (6), and a space that a straight section of thick bamboo is located tube-shape filter piece top forms feeding district (7), and a space that a straight section of thick bamboo is located a tube-shape filter piece below forms and filters district (8), and the upper end is fixed with cover (9), the push-and pull rod sliding fit, the lower extreme of push-and-pull rod is fixed with piston (10), and the upper end of push-and-pull rod is fixed with pushes away pull head (11), is equipped with spacing portion of annular (12) in the straight section of thick bamboo, the tube-shape filters the open end terminal surface of piece and offsets with the spacing portion of annular, the uncovered outside of piece is filtered to the tube-shape is equipped with annular flange (13), be equipped with annular spacing breach (14) in the spacing portion of annular, annular flange and spacing breach looks adaptation.
2. The filter pressing device for the phytoplankton in the seawater as claimed in claim 1, wherein the lower end of the filtering side cylinder is open, and the lower end of the filtering side cylinder is in threaded connection with a fastening cover (15), and the fastening cover is in pressure connection with the lower end face of the cylindrical filter member.
3. The filter pressing device for the phytoplankton in the seawater as claimed in claim 1, wherein a base (16) is fixed at the lower end of the straight cylinder.
4. The filter pressing device for the phytoplankton in the seawater as claimed in claim 1, wherein a linear bearing (17) is fixed in the cylinder cover, the push-pull rod penetrates through the linear bearing, a sealing ring (18) is fixed on the outer side of the inner end face of the linear bearing, and a retaining ring (19) is fixed on the outer side of the outer end face of the linear bearing.
5. The filter pressing device for the phytoplankton in the seawater as claimed in claim 1, wherein a limit baffle ring (20) is arranged in the straight cylinder and is positioned below the piston.
6. The filter pressing device for the phytoplankton in the seawater as claimed in claim 1, wherein an O-shaped sealing ring is arranged on the outer circumferential surface of the piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911199766.6A CN111035981B (en) | 2019-11-29 | 2019-11-29 | Phytoplankton filter-pressing device in sea water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911199766.6A CN111035981B (en) | 2019-11-29 | 2019-11-29 | Phytoplankton filter-pressing device in sea water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111035981A CN111035981A (en) | 2020-04-21 |
| CN111035981B true CN111035981B (en) | 2022-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911199766.6A Active CN111035981B (en) | 2019-11-29 | 2019-11-29 | Phytoplankton filter-pressing device in sea water |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112611604A (en) * | 2020-11-30 | 2021-04-06 | 浙江省海洋水产研究所 | Marine phytoplankton sampling device |
| CN113984488A (en) * | 2021-09-29 | 2022-01-28 | 浙江省海洋水产研究所 | Portable phytoplankton sample separation enrichment facility of quick detach |
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