CN114923738A - Device for periodically collecting subzero plankton - Google Patents
Device for periodically collecting subzero plankton Download PDFInfo
- Publication number
- CN114923738A CN114923738A CN202210486939.8A CN202210486939A CN114923738A CN 114923738 A CN114923738 A CN 114923738A CN 202210486939 A CN202210486939 A CN 202210486939A CN 114923738 A CN114923738 A CN 114923738A
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- China
- Prior art keywords
- sampling tube
- plankton
- periodically collecting
- sealing plug
- subzero
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- 238000005070 sampling Methods 0.000 claims abstract description 122
- 238000007789 sealing Methods 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000010410 layer Substances 0.000 claims description 19
- 229920000742 Cotton Polymers 0.000 claims description 9
- 238000007710 freezing Methods 0.000 claims description 6
- 230000008014 freezing Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000011229 interlayer Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 14
- 238000004321 preservation Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 1
- 208000034699 Vitreous floaters Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B22/00—Buoys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B22/00—Buoys
- B63B22/04—Fixations or other anchoring arrangements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a device for periodically collecting subzero plankton, which comprises a sampling tube, a sealing plug and a pull rod, wherein a floating component is arranged on the outer wall of the sampling tube in a surrounding manner and used for enabling the sampling tube to vertically float on the water surface when the sampling tube is not frozen, the upper port of the sampling tube is positioned above an ice layer, and the lower port of the sampling tube is positioned below the ice layer; the sealing plug is arranged at the lower port of the sampling tube and is used for preventing water below the ice layer from entering the sampling tube; the pull rod is arranged in the sampling tube, and the bottom end of the pull rod is fixedly connected with the sealing plug and used for drawing the sealing plug out of the sampling tube. According to the invention, the sampling tube is arranged when water is not frozen, so that ice chiseling is not needed when planktons are collected every time, and the manpower and labor capacity are reduced.
Description
Technical Field
The invention relates to the technical field of aquatic organism collection, in particular to a device for periodically collecting subzero plankton.
Background
The Songhua river is one of seven major rivers in China, the ice sealing period is generally 5-6 months from Harbin to Jiamusi river sections, the average thickness of an ice layer is 0.94 meter for many years, the average value of the thickness of the ice layer in the Halbin river section is 0.87 meter, the average value of the ice layer in the Tonghe river section is 0.92 meter, and the average value of the Jiamusi river section is 1.02 meter, so that the understanding of the species composition and community structure of the plankton under ice is crucial to the research on the aquatic biodiversity, fish protection and fishery management of the Songhua river.
Plankton collection generally needs periodicity, if 1 month 1 time, 2 months 1 time etc., because the Songhua river waters ice seal period is longer, the ice sheet is thicker, gather plankton and need chisel ice hole, because the weather is undercooled, the hole that remains after the chisel ice freezes very fast, consequently gather plankton at every turn and all need the chisel ice, consume great material resources and manpower, and caused the influence to the water environment at the chisel ice in-process, also can influence the plankton community structure under the natural state of ice seal period, certain error has been caused, can not truly reflect the kind of the plankton of ice seal period and constitute.
Disclosure of Invention
The invention aims to provide a device for periodically collecting the subzero plankton, which is used for simplifying the periodic collection process of the subzero plankton and saving manpower.
In order to achieve the above purpose, the invention provides the following technical scheme:
an apparatus for periodic collection of subzero plankton comprising:
the sampling tube is provided with a floating assembly in a surrounding manner on the outer wall and used for vertically floating on the water surface when the sampling tube is not frozen, the upper port of the sampling tube is positioned above the ice layer, and the lower port of the sampling tube is positioned below the ice layer;
the sealing plug is arranged at the lower end of the sampling tube and is used for preventing water below an ice layer from entering the sampling tube;
and the drawing rod is arranged in the sampling tube, and the bottom end of the drawing rod is fixedly connected with the sealing plug and used for drawing the sealing plug out of the sampling tube.
Compared with the prior art, the sampling tube is arranged when water is not frozen, ice sinking is not needed when plankton is collected every time, and the labor power and the labor capacity are reduced.
Further, the height difference between the floating component and the upper port of the sampling tube is 10-12 cm.
The adoption of the proposal has the effect that the upper port is positioned above the surface of the ice layer, thereby facilitating the operation.
Furthermore, an anchor cable is arranged on the outer wall of the lower port of the sampling tube and used for fixing the position of the sampling tube; the anchor cable is provided with three at least, three anchor cable along the equiangular distribution of circumference around the sampling tube.
The scheme has the advantages that the anchor cable is utilized to fix the position of the sampling tube, so that the sampling position is ensured to be unchanged, and each sampling is synchronous.
Further, a heat preservation interlayer is arranged in the sampling tube.
The effect of adopting this scheme is, plays certain heat preservation effect to the sampling tube is inside, prevents because of the temperature is lower, makes freezing in the sampling tube.
Further, the sampling tube is filled with cotton wool.
The effect of adopting this scheme is, plays the heat preservation effect inside the sampling tube.
Furthermore, the sampling tube comprises a plurality of connecting tubes with the same length, the connecting tubes are detachably connected in sequence, and the length of each connecting tube is 0.8-1.2 m.
The effect of adopting this scheme is, can be according to the sampling depth of difference, selectively with many connecting pipes end to end connection, constitute into required length, satisfy the collection needs.
Further, a handle or a shackle which is convenient to pull is arranged at the top of the pulling rod.
The adoption of the scheme has the effect that the force is conveniently applied, and the sealing plug is conveniently pulled out from the sampling tube by grabbing the handle or the shackle.
Further, an auxiliary rod is also included for passing through a handle or a shackle to extract the drawing rod.
The technical scheme has the advantages that the auxiliary rod penetrates through the hook ring or the handle, and the two ends of the auxiliary rod are forcibly pressed downwards so as to push the sealing plug; or when the sealing plug is not easy to take out, the auxiliary rod can play a role of lifting.
Furthermore, the top end of the sampling tube is detachably connected with a buckle cover.
The effect of adopting this scheme is, prevents in the foreign matter or the water entering sampling tube after gathering.
A method for periodically collecting subzero plankton comprises the following steps:
(1) before freezing, the sampling tube is placed in a required water area, and the sampling tube is fixed in position through the floating assembly and the anchor cable to be controlled to be in static balance;
(2) opening the buckle cover, and drawing out the sealing plug at the lower port of the sampling tube through the drawing rod;
(3) water flow under the ice layer flows into the sampling tube from the lower port of the sampling tube due to negative pressure, and floating objects are collected by the upper port of the sampling tube;
(4) after the collection is finished, inserting a sealing plug, and pushing water in the sampling tube into a river under an ice layer;
(5) cleaning the water stain left in the sampling tube, filling cotton wool in the sampling tube, and covering a buckle cover.
Compared with the prior art, the invention does not need to chisel ice every time plankton is collected, and the collected plankton is not interfered by human activities such as ice chiseling and the like, thereby reducing the manpower and labor amount; the sampling position is ensured not to change, and each sampling is synchronous.
Further, the step (1) further comprises: according to different depths of the plankton to be collected, connecting pipes with different numbers are prepared and connected to form a sampling pipe with the length meeting the collection depth requirement.
The effect of adopting this scheme is that the connecting pipe can be dismantled, convenient to carry in the field.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic view of the structure provided by the present invention;
FIG. 2 is a schematic view of the engagement between the cover and the sampling tube according to the present invention;
fig. 3 is a schematic view of the auxiliary lever of the present invention.
In the figure:
1-a sampling tube; 2-sealing plug; 3-a drawing rod; 31-a shackle; 4-a floating assembly; 5, anchor cable; 6-auxiliary rod; 7-buckling a cover.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present invention and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The embodiment of the invention discloses a device for periodically collecting subzero plankton, which comprises the following components in a figure 1: the sampling tube 1 can be a stainless steel round tube, a floating component 4 is arranged around the outer wall of the sampling tube 1, the floating component 4 can be an inflatable floating ball and is used for enabling the sampling tube 1 to vertically float on the water surface when the sampling tube is not frozen, the upper port of the sampling tube 1 is positioned above an ice layer, and the lower port of the sampling tube 1 is positioned below the ice layer; the sealing plug 2 is arranged at the lower port of the sampling tube 1, can be made of rubber, is in seamless connection with the interior of the sampling tube 1 and is used for preventing water under an ice layer from entering the sampling tube 1;
the drawing rod 3 is arranged in the sampling tube 1, and the bottom end of the drawing rod 3 is fixedly connected with the sealing plug 2 and used for drawing the sealing plug 2 out of the sampling tube 1. The sampling tube 1 can be arranged when water is not frozen, so that ice chiseling is not needed to be carried out when plankton is collected every time after freezing, the collected plankton is not interfered by activities of people such as ice chiseling and the like, and the labor and labor amount are reduced.
Advantageously, the difference in height between the floating assembly 4 and the upper end of the sampling tube 1 is between 10 and 12 cm; the upper port of the sampling tube 1 is positioned above the water surface, so that the operation is convenient.
Preferably, an anchor cable 5 is arranged on the outer wall of the lower port of the sampling tube 1 and used for fixing the position of the sampling tube 1; the anchor cables 5 are at least three, and the three anchor cables 5 are distributed around the sampling tube 1 at equal angles along the circumferential direction.
So set up, utilize anchor rope 5 fixed to the position of sampling tube 1, guaranteed that the sampling position can not change, sampling at every turn is synchronous, ensures the accuracy of gathering the result.
In some embodiments, the sampling tube 1 is provided with an insulating interlayer. The heat preservation interlayer can be filled with materials such as hydrophobic expanded perlite with light texture, and the like, so that a certain heat preservation effect is achieved for the interior of the sampling tube 1, and the phenomenon that freezing in the sampling tube 1 influences the movement of the sealing plug 2 due to low temperature is prevented.
Optionally, the sampling tube 1 is filled with cotton wool, the cotton wool can be wrapped by waterproof fiber cloth, the cotton wool is filled around the drawing rod 3, and when the sealing plug 2 is taken out, the cotton wool is taken out firstly; after the sealing plug 2 and the pull rod 3 are arranged in the sampling tube 1, cotton wool is stuffed in the sampling tube. Thus, the heat preservation effect is achieved in the sampling tube 1.
In some embodiments, the sampling tube 1 comprises a plurality of connecting tubes with the same length, the connecting tubes are detachably connected in sequence, and the length of each connecting tube is 0.8-1.2 m. So, can be according to the sampling degree of depth of difference, selectively with many connecting pipes end to end connection, constitute into required length, satisfy the needs of gathering, but the optional threaded connection of connected mode sets up the screw thread respectively at the end to end both ends of every connecting pipe for with the threaded connection of adjacent connecting pipe.
Further, the top of the drawing rod 3 is provided with a handle or a hook ring 31 for facilitating drawing. In this way, it is easy to apply force to pull the sealing plug 2 out of the sampling tube 1 by grasping the handle or the hook ring 31 and pulling the pull rod 3.
Preferably, as shown in fig. 3, an auxiliary rod 6 is further included, the auxiliary rod 6 being used to pass through the handle or shackle 31 to extract the pull rod 3. So set up, through passing the auxiliary rod 6 through the hook ring 31 or handle, both ends press the auxiliary rod 6 with strength, thus the sealing plug 2 is pushed into the sampling tube 1; or when the sealing plug is not easy to take out, the auxiliary rod can play a role of lifting.
In some embodiments, as shown in fig. 2, a fastening cover 7 is detachably connected to the top end of the sampling tube 1, and the sampling tube 1 and the fastening cover 7 can be connected in a snap-in manner or a threaded manner, which is not particularly limited herein, so as to achieve the purpose of detachably and hermetically connecting the two, and mainly prevent foreign matters, snow or water from entering the sampling tube 1 after collection.
The invention also discloses a method for periodically collecting the subzero plankton, and the device for periodically collecting the subzero plankton comprises the following steps:
(1) before freezing, the sampling tube is placed in a required water area, and the sampling tube is fixed in position through the floating assembly and the anchor cable to be controlled to be in static balance;
(2) opening the buckle cover, and drawing out the sealing plug at the lower port of the sampling tube through the drawing rod;
(3) water flow under the ice layer flows into the sampling tube from the lower port of the sampling tube due to negative pressure, and floaters are collected by the upper port of the sampling tube;
(4) after the collection is finished, inserting a sealing plug, and pushing water in the sampling tube into a river under an ice layer;
(5) cleaning the water stain left in the sampling tube, filling cotton wool in the sampling tube, and covering a buckle cover.
By the collecting method disclosed by the invention, ice sinking is not needed to be carried out each time plankton is collected, the collected plankton is not interfered by activities of people such as ice sinking and the like, and the manpower and labor amount are also reduced; the sampling position is ensured not to change, and each sampling is synchronous.
Further, the step (1) further comprises: according to different depths of the plankton to be collected, connecting pipes with different numbers are prepared and connected to form a sampling pipe with the length meeting the requirement of the collected depth. Because the connecting pipe can be dismantled, it is convenient to carry in the field.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A device for periodically collecting subzero plankton, comprising:
the sampling tube is provided with a floating assembly in a surrounding manner on the outer wall and used for vertically floating on the water surface when the sampling tube is not frozen, the upper port of the sampling tube is positioned above the ice layer, and the lower port of the sampling tube is positioned below the ice layer;
the sealing plug is arranged at the lower port of the sampling tube and is used for preventing water below an ice layer from entering the sampling tube;
and the drawing rod is arranged in the sampling tube, and the bottom end of the drawing rod is fixedly connected with the sealing plug and used for drawing the sealing plug out of the sampling tube.
2. The device for periodically collecting the infrasonic plankton of claim 1, wherein the height difference between the floating component and the upper port of the sampling tube is 10-12 cm.
3. The device for periodically collecting the plankton under ice according to claim 1,
an anchor cable is arranged on the outer wall of the lower port of the sampling tube and used for fixing the position of the sampling tube; the anchor cables are at least three and are distributed around the sampling tube at equal angles along the circumferential direction.
4. The periodic collection device for the infraglacial plankton of claim 1, characterized in that the sampling tube is provided with a heat-insulating interlayer.
5. The device for periodically collecting the subzero plankton according to claim 1, wherein the sampling tube comprises a plurality of connecting tubes with the same length, the connecting tubes are detachably connected in sequence, and the length of each connecting tube is 0.8-1.2 m.
6. The device for periodically collecting the subzero plankton according to claim 1, wherein the top of the drawing rod is provided with a handle or a shackle for facilitating drawing.
7. The device for periodically collecting the infraglacial plankton according to claim 6, further comprising an auxiliary rod for passing through a handle or a shackle to draw out the pull rod.
8. The device for periodically collecting the plankton under ice as claimed in claim 1, wherein a buckle cover is detachably connected to the top end of the sampling tube.
9. A method for periodically collecting the subzero plankton, which adopts the device for periodically collecting the subzero plankton as claimed in any one of claims 1-8, and is characterized by comprising the following steps:
(1) before freezing, putting the sampling tube into a required water area, fixing the position of the sampling tube in a fixed position through a floating assembly and an anchor rope, and controlling the sampling tube to be in static balance;
(2) opening the buckle cover, and drawing out the sealing plug at the lower port of the sampling tube through the drawing rod;
(3) the water flow under the ice layer flows into the sampling tube from the lower port of the sampling tube due to negative pressure, and the floating objects are collected by the upper port of the sampling tube;
(4) after the collection is finished, inserting a sealing plug, and pushing water in the sampling tube into a river under an ice layer;
(5) cleaning water stain left in the sampling tube, stuffing cotton wool, and covering with a cover.
10. The apparatus for periodically collecting the plankton under ice according to claim 9, wherein the step (1) further comprises: according to different depths of the plankton to be collected, connecting pipes with different numbers are prepared and connected to form a sampling pipe with the length meeting the requirement of the collected depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210486939.8A CN114923738A (en) | 2022-05-06 | 2022-05-06 | Device for periodically collecting subzero plankton |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210486939.8A CN114923738A (en) | 2022-05-06 | 2022-05-06 | Device for periodically collecting subzero plankton |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114923738A true CN114923738A (en) | 2022-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210486939.8A Pending CN114923738A (en) | 2022-05-06 | 2022-05-06 | Device for periodically collecting subzero plankton |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2034692U (en) * | 1988-02-27 | 1989-03-22 | 黑龙江省科技咨询中心农村经济咨询部 | Sampling device for water environment under ice layer |
| US5505843A (en) * | 1993-07-06 | 1996-04-09 | Hitachi, Ltd. | System for controlling water treatment based on plankton monitoring |
| JP2018153114A (en) * | 2017-03-16 | 2018-10-04 | 東京電力ホールディングス株式会社 | Plankton collecting device, and plankton collecting method |
| WO2018223840A1 (en) * | 2017-06-06 | 2018-12-13 | 大连理工大学 | In-situ novel energy source-driven plankton collecting device |
| CN208588577U (en) * | 2018-06-22 | 2019-03-08 | 北京市水科学技术研究院 | A kind of automatic water station of floating platform formula adopts water-sampling device |
| CN210221571U (en) * | 2019-06-03 | 2020-03-31 | 清远市拓达环保科技有限公司 | Marine environment surveys plankton layering sampling device |
| CN211043362U (en) * | 2019-11-15 | 2020-07-17 | 芯视界（北京）科技有限公司 | Automatic water quality monitoring equipment |
| CN211652235U (en) * | 2019-09-26 | 2020-10-09 | 内蒙古农业大学 | River deep water intake device |
-
2022
- 2022-05-06 CN CN202210486939.8A patent/CN114923738A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2034692U (en) * | 1988-02-27 | 1989-03-22 | 黑龙江省科技咨询中心农村经济咨询部 | Sampling device for water environment under ice layer |
| US5505843A (en) * | 1993-07-06 | 1996-04-09 | Hitachi, Ltd. | System for controlling water treatment based on plankton monitoring |
| JP2018153114A (en) * | 2017-03-16 | 2018-10-04 | 東京電力ホールディングス株式会社 | Plankton collecting device, and plankton collecting method |
| WO2018223840A1 (en) * | 2017-06-06 | 2018-12-13 | 大连理工大学 | In-situ novel energy source-driven plankton collecting device |
| CN208588577U (en) * | 2018-06-22 | 2019-03-08 | 北京市水科学技术研究院 | A kind of automatic water station of floating platform formula adopts water-sampling device |
| CN210221571U (en) * | 2019-06-03 | 2020-03-31 | 清远市拓达环保科技有限公司 | Marine environment surveys plankton layering sampling device |
| CN211652235U (en) * | 2019-09-26 | 2020-10-09 | 内蒙古农业大学 | River deep water intake device |
| CN211043362U (en) * | 2019-11-15 | 2020-07-17 | 芯视界（北京）科技有限公司 | Automatic water quality monitoring equipment |
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Application publication date: 20220819 |