CN111504723A - Ocean micro-surface layer sampling method - Google Patents
Ocean micro-surface layer sampling method Download PDFInfo
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- CN111504723A CN111504723A CN202010213250.9A CN202010213250A CN111504723A CN 111504723 A CN111504723 A CN 111504723A CN 202010213250 A CN202010213250 A CN 202010213250A CN 111504723 A CN111504723 A CN 111504723A
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- 238000005070 sampling Methods 0.000 title claims abstract description 81
- 238000000034 method Methods 0.000 title claims abstract description 49
- 239000002344 surface layer Substances 0.000 title claims description 16
- 239000007788 liquid Substances 0.000 claims abstract description 130
- 239000011521 glass Substances 0.000 claims abstract description 86
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 230000008569 process Effects 0.000 claims abstract description 14
- 239000013535 sea water Substances 0.000 claims description 19
- 230000000630 rising effect Effects 0.000 claims description 3
- 239000011257 shell material Substances 0.000 description 30
- 108010066278 cabin-4 Proteins 0.000 description 12
- 239000000725 suspension Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000002337 anti-port Effects 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000005357 flat glass Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
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- 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
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
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Abstract
A method of marine microskin sampling comprising: step S1: placing the sampling device at a working position above the sea surface; step S2; determining the lowest position, the highest position and the running speed of the collecting plate; step S3: the lifting system drives the acquisition board to move downwards to the lowest position perpendicular to the sea surface; step S4: the lifting system drives the collection plate to move upwards to the highest position perpendicular to the sea surface, and when the collection plate moves to the highest position, the driving mechanism drives the liquid collection tank to rotate, so that one side, close to the glass plate, of the top of the liquid collection tank is attached to the glass plate; step S5: the lifting system drives the collecting plate to move downwards to the lowest position perpendicular to the sea surface, in the descending process, liquid on the surface of the glass plate is scraped from one side, close to the glass plate, of the top of the liquid collecting tank to collect the liquid, the liquid is collected into the liquid collecting tank, and the liquid in the liquid collecting tank is guided into the collecting bottle; step S6: stopping sampling; the sampling method has the advantages of high automation degree, high sampling efficiency and ideal sampling thickness, and can meet the requirements of scientists.
Description
Technical Field
The invention relates to the technical field of micro-surface layer sampling, in particular to a marine micro-surface layer sampling method.
Background
The ocean micro surface layer is a thin layer between the atmosphere and the ocean surface layer, has the thickness of about 30-200 microns, has unique physical, chemical and biological characteristics, and can enrich various substances. The determination of various parameters in the ocean micro surface layer has special significance for flux calculation of substances, climate change prediction, environmental condition prediction, marine organism monitoring and the like, and relevant research is concerned for a long time in the field of ocean science. High-quality sampling is a precondition for researching the ocean micro surface layer and is also a difficult point for researching the ocean micro surface layer.
The current sampling method for the microsurface mainly comprises a screen method, a glass plate method and a rotary drum method, wherein the screen method is that a screen mesh of a 16-mesh stainless steel wire is fixed on a stainless steel frame of 40cm × 40cm, the screen face is contacted with the water surface, then the screen mesh is lifted at a constant speed, one angle is vertically placed on a sampling bottle opening, a water film flows into the sampling bottle, the thickness of the obtained microsurface is about (200 +/-10) mu m, the screen sampler is simple to manufacture and convenient to operate, and can be suitable for severe sea conditions, but the sampling thickness is large and cannot meet requirements of scientists, the glass plate method is that flat glass of a certain specification is vertically soaked into the water surface, the flat glass is vertically lifted from the water at a certain speed, seawater of the microsurface with a certain thickness is remained on a glass plate, residues are scraped into the sampling bottle by a scraper, the general sampling thickness of the glass plate sampler is 40-100 mu m, the sampling thickness of the glass plate sampler is ideal, the sampling thickness can meet the conditions, the rotary drum method is that the hydrophilic glass fiber coating is coated on the surface of a roller (46 cm in diameter and 61cm, the roller is connected with a motor, the roller is connected with a speed-adjustable, the roller is connected with a speed reducer, the roller.
The prior patent, as the chinese patent with publication number CN110160840A with publication number 2019.08.23, discloses a glass plate sampler for collecting micro-surface water samples and a sampling method thereof, but the sampling process needs manual operation, the operation is relatively complicated, the water inlet angle, the water outlet angle and the running speed are difficult to guarantee in the sampling process, the stability is poor, the sampling quality is difficult to guarantee, the automation degree is low, the sampling efficiency is low, and the sampling method is not suitable for working under severe working conditions.
Disclosure of Invention
Aiming at the technical problems, the invention provides the marine micro-surface sampling method which is reasonable in sampling thickness, good in sampling quality, high in automation degree and sampling efficiency and can adapt to certain severe sea conditions.
In order to achieve the purpose, the invention adopts the technical scheme that:
a marine microsurface sampling method comprises the following steps:
step S1: placing the sampling device at a working position above the sea surface;
step S2; determining the lowest position, the highest position and the running speed of the collecting plate;
step S3: the lifting system drives the collecting plate to move downwards to the lowest position perpendicular to the sea surface, and when the collecting plate moves to the lowest position, most of the glass plate is immersed in seawater;
step S4: the lifting system drives the collection plate to move upwards to the highest position perpendicular to the sea surface, and when the collection plate moves to the highest position, the driving mechanism drives the liquid collection tank to rotate, so that one side, close to the glass plate, of the top of the liquid collection tank is attached to the glass plate;
step S5: the lifting system drives the collecting plate to move downwards to the lowest position perpendicular to the sea surface, in the descending process, liquid on the surface of the glass plate is scraped from one side, close to the glass plate, of the top of the liquid collecting tank to collect the liquid, the liquid is collected into the liquid collecting tank, and the liquid in the liquid collecting tank is guided into the collecting bottle;
step S6: the sampling is stopped.
Preferably, in step S1, the working position is 10-20 centimeters from the sea surface.
Preferably, in step S2, the height of the collection plate is H, the vertical distance from the contact position of the collection plate with the top of the liquid collection tank near the glass plate to the bottom of the collection plate is D1 when the collection plate is at the lowest position, 1/2H < D1< H, and the vertical distance from the contact position of the collection plate with the top of the liquid collection tank near the glass plate to the top of the collection plate is D2 when the collection plate is at the highest position, 1/2H < D2< H.
Preferably, in step S2, the operation speed includes a rising speed and a falling speed of the collecting plate.
Preferably, the collecting plate moves upwards at a constant speed.
Preferably, the step S5 further includes the steps of:
when the collecting plate moves to the lowest position, the driving mechanism drives the liquid collecting groove to rotate, so that one side, close to the glass plate, of the top of the liquid collecting groove is far away from the glass plate.
Preferably, between the step S5 and the step S6, the method further comprises the following steps:
and judging whether the collecting bottles are fully collected or not, returning to the step S4 when the collecting bottles are not fully collected, driving the collecting plate to move upwards to the highest position perpendicular to the sea surface by the lifting system when the collecting bottles are fully collected, and executing the step S6.
Preferably, the driving mechanism comprises an electromagnet, a magnet and a spring;
the electromagnet is electrified, magnetic force generated after the electromagnet is electrified adsorbs the magnet to move towards the electromagnet, and the magnet moves to drive the liquid collector to rotate, so that one side of the top of the liquid collecting tank, which is close to the glass plate, is tightly attached to the glass plate;
the electromagnet is powered off, the electromagnet loses magnetic force, the magnet is far away from the electromagnet under the pulling of the elastic force of the spring, the magnet moves to drive the liquid collector to rotate, and one side, close to the glass plate, of the top of the liquid collecting tank is far away from the glass plate.
Preferably, the lifting system is a lead screw lifting system, and the lead screw lifting system comprises a lead screw.
Preferably, a control cabin of the control system sends a signal to control the screw rod to rotate, the collection plate is driven to move downwards along the guide rail, the control cabin sends a signal to control the screw rod to rotate reversely, the collection plate is driven to move upwards along the guide rail, and the control cabin controls the electromagnet to be powered on and powered off.
Compared with the prior art, the invention has the beneficial effects that:
the sampling method has reasonable sampling thickness, can meet the needs of researchers, has high automation degree, high sampling quality and good stability, and can meet the requirements of working under severe working conditions.
1. A marine micro-surface layer sampling method finishes sample collection by arranging a lifting system and a driving mechanism, has simple mode and easily controlled running speed, comprises a collection plate, has high automation degree, high sampling efficiency and ideal sampling thickness, can meet the requirements of scientists, can adapt to severe sampling environment, and is real and reliable in sampling;
2. one side of the top of the liquid collecting tank, which is close to the glass plate, is arranged to be tightly attached to the glass plate, liquid on the surface of the glass plate is scraped by the liquid collecting tank in the descending process of the collecting plate, and meanwhile, the collecting plate extends into water to continue sample collection in the descending process of the collecting plate, so that sample collection of the collecting plate and sample scraping of the liquid collecting tank are synchronously carried out, the operation steps can be simplified, and the sampling efficiency is high;
3. the working position is 10-20 cm away from the sea surface, so that the sampling device is as close to the sea surface as possible, and the shell is used for protection, so that sea waves cannot hit the sampling device, and the liquid sample is prevented from being polluted by the sea waves;
4. the lowest position and the highest position of the collecting plate are limited, so that the liquid collecting tank can be tightly attached to the glass plate when the collecting plate rotates in the working process of the collecting plate, the relative position of the collecting plate and the liquid collecting tank is prevented from being influenced by the over-high position and the over-low position of the collecting plate, and the smooth completion of the collecting work is further influenced;
5. the collecting plate is arranged to rise at a constant speed, so that the collecting work can be stably carried out, the thickness difference of the collected liquid samples is small, and the liquid samples meeting the standard can be collected;
6. the driving mechanism comprises an electromagnet, a magnet and a spring, the electromagnet is electrified to generate magnetic force, and the magnetic force is lost when the electromagnet is powered off, so that the magnet is controlled, the contact relation between the liquid collecting tank and the glass plate is further controlled, the liquid collecting tank can be well controlled to scrape a liquid sample, and the liquid sample scraping device is simple in structure and easy to operate;
7. the lifting system adopts a lead screw lifting system, the lifting system and the driving mechanism are controlled by utilizing the control cabin, the lifting of the collecting plate and the rotation of the liquid collecting tank can be automatically carried out, the automation degree is high, and the control is easy.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of one embodiment of a method of marine microskin sampling according to the present invention;
FIG. 2 is a flow chart of another embodiment of a method of marine microskin sampling according to the present invention;
FIG. 3 is an internal assembly view of one embodiment of an ocean microskin sampling device according to the present invention;
FIG. 4 is a schematic structural diagram of another embodiment of an ocean microskin sampling device according to the present invention;
FIG. 5 is a schematic structural view of one embodiment of the acquisition board of the present invention;
FIG. 6 is a schematic view of the internal structure of one embodiment of the housing of the present invention;
FIG. 7 is an inside elevational view of another embodiment of the housing of the present invention;
FIG. 8 is a schematic structural view of one embodiment of a liquid trap according to the present invention;
FIG. 9 is a bottom view of another embodiment of a liquid trap according to the present invention.
In the above figures, 1, a housing; 2. a hoisting ring; 3. collecting a plate; 4. a control cabin; 5. a liquid collector; 6. a collection bottle; 7. a lead screw; 8. a guide rail; 9. the collection plate extends out of the hole; 10. an electromagnet; 11. a liquid collector limiting groove; 12. a glass panel frame; 13. a glass plate; 14. a magnet; 15. a spring; 16. a liquid collecting tank; 17. and a liquid outlet hole.
Detailed Description
The invention is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1, a method for sampling an ocean microsurface comprises the following steps:
step S1: the sampling device is placed in a working position above the sea surface.
Specifically, the sampling device is hung to the working position of the sea surface through a suspension mechanism such as a suspension rod or a folding arm of a ship or other tools, the working position is determined according to the working environment, so that the sampling device is close to the sea surface as much as possible, the sea waves can not impact on the sampling device in the working process, liquid samples are prevented from being polluted by the sea waves, and the working position is 10-20 cm away from the sea surface.
Step S2; determining the lowest position, the highest position and the running speed of the collecting plate,
specifically, the lowest position and the highest position of the collecting plate are determined according to the relative positions of the sampling plate and the liquid collecting tank, the height of the collecting plate is H, when the collecting plate is at the lowest position, the vertical distance from the contact position of the collecting plate and the top of the liquid collecting tank close to the glass plate side to the bottom of the collecting plate is D1, 1/2H < D1< H, when the sampling plate is at the highest position, the vertical distance from the contact position of the collecting plate and the top of the liquid collecting tank close to the glass plate side to the top of the collecting plate is D2, 1/2H < D2< H. The running speed of the collecting plate is determined according to the thickness to be sampled and the actual sea condition, the running speed is controlled through the control cabin, the running speed comprises the descending speed and the ascending speed of the collecting plate, and when the collecting plate ascends at a constant speed, better sampling can be achieved.
Step S3: the lifting system drives the collecting plate to move downwards to the lowest position perpendicular to the sea surface, and when the collecting plate moves to the lowest position, most of the collecting plate is immersed in the sea water.
Specifically, operating system is lead screw operating system, lead screw operating system includes the lead screw, is equipped with the guide rail on the sampling device shell, and control system's control cabin signals control lead screw rotates, and the drive is gathered the board and is followed guide rail downstream to the extreme low position, and it stretches out in the board stretches out the hole from the collection board of shell bottom, inserts the sea water perpendicularly, when gathering the board and reacing the extreme low position, gathers the most submergence of board in the sea water, the sample that can be better when gathering the board and inserting the sea water perpendicularly.
Step S4: the lifting system drives the collection plate to move upwards to the highest position perpendicular to the sea surface, and when the collection plate moves to the highest position, the driving mechanism drives the liquid collection tank to rotate, so that one side, close to the glass plate, of the top of the liquid collection tank is attached to the glass plate tightly.
Specifically, control cabin signals control lead screw antiport, the drive is gathered the board and is followed guide rail upward movement to highest position, gather the board and take out at the uniform velocity perpendicularly from the sea water, the sample that collection thickness that can be better satisfies the requirement, actuating mechanism includes the electro-magnet, a spring, when gathering the board and moving to highest position, control cabin control electro-magnet circular telegram, produce magnetic force after the electro-magnet circular telegram and adsorb magnet and remove towards the electro-magnet, magnet removes and drives the liquid trap and rotate, one side that makes the liquid trap top be close to the glass board pastes tight glass board.
Step S5: the lifting system drives the collecting plate to move downwards to the lowest position perpendicular to the sea surface, in the descending process, liquid on the surface of the glass plate is scraped from one side, close to the glass plate, of the top of the liquid collecting tank to collect the liquid, the liquid is collected into the liquid collecting tank, and the liquid in the liquid collecting tank is guided into the collecting bottle;
specifically, a control cabin of the control system sends a signal to control a lead screw to rotate, a collecting plate is driven to move downwards to the lowest position, the collecting plate extends out of a collecting plate extending hole at the bottom of a shell and is vertically inserted into seawater, liquid on the surface of a glass plate is scraped to collect liquid from one side, close to the glass plate, of the top of a liquid collecting tank in the descending process, the liquid is collected into the liquid collecting tank, a liquid outlet hole is formed in the liquid collecting tank, the collected liquid in the liquid collecting tank flows into a collecting bottle through the liquid outlet hole, and when the collecting plate reaches the lowest position, most of the collecting plate is immersed in the seawater;
step S6: the sampling is stopped.
Specifically, the control cabin controls the sampling device to stop sampling, and controls the collecting plate and the collecting tank to recover to the state before working.
Referring to fig. 2, in the step S5, the method further includes the following steps:
when the collecting plate moves to the lowest position, the driving mechanism drives the liquid collecting groove to rotate, so that one side of the top of the liquid collecting groove, which is close to the glass plate, is far away from the glass plate;
specifically, the control cabin controls the electromagnet to be powered off, the electromagnet loses magnetic force, the magnet is far away from the electromagnet under the pulling of spring elasticity, the magnet moves to drive the liquid collector to rotate, and one side, close to the glass plate, of the top of the liquid collecting tank is far away from the glass plate.
Between the steps S5 and S6, the following steps are further included:
and (4) judging whether the collecting bottles are fully collected, returning to the step S4 when the collecting bottles are not fully collected, driving the collecting plate to move upwards to the highest position perpendicular to the sea surface by the lifting system when the collecting bottles are fully collected, and executing the step S6.
Referring to fig. 3-9, the marine micro-surface layer sampling device capable of implementing the marine micro-surface layer sampling method of the present invention includes a housing 1, a sampling system, a lifting system, a liquid collecting system, a control system, and a suspension system.
The shell 1 is of a box body structure and is used for protecting the sampling system and the liquid collecting system and preventing sea waves from polluting collected samples.
The sampling system comprises a collecting plate 3, the collecting plate 3 is arranged in the shell 1, the collecting plate 3 comprises a glass plate frame 12 and a glass plate 13, the glass plate 13 is fixedly arranged on the glass frame 12, and the glass frame 12 wraps the edge of the glass plate 13 to protect the glass plate 13.
The lifting system is fixedly arranged on the shell 1, the collecting plate 3 is arranged on the lifting system through the glass frame 12, and the lifting system can drive the collecting plate 3 to move up and down. Be equipped with collection board on the 1 bottom plate of shell and stretch out hole 9, gather the board and stretch out the hole and be the rectangle through-hole, the maximum width and the maximum thickness of gathering board 3 all are less than the length and the width that the board stretches out hole 9 of gathering, are convenient for gather board 3 and stretch out hole 9 through gathering the board and remove 1 outsides of shell, carry out sample collection work.
The lifting system is a screw lifting system, the screw lifting system comprises a screw 7, the screw 7 is fixedly arranged in a groove in the inner side wall of the shell 1, the screw 7 is arranged along the height direction of the shell 1, a guide rail 8 is fixedly arranged on the inner side wall of the shell 1, the guide rail 8 is arranged along the height direction of the shell 1, a glass frame 12 is arranged on the screw 7 and is abutted to the guide rail 8, the screw 7 is driven by a motor to rotate, the screw 7 drives the acquisition board to move up and down along the guide rail 8 in a rotating mode, the guide rail 8 is arranged on the shell 1 and can limit the movement direction of the acquisition board 3, the rotation direction of the screw 7 can be controlled by positive and negative rotation of the control motor.
On the shell 1 was located to the collecting system, the collecting system included actuating mechanism, liquid trap 5, receiving flask 6, be equipped with two liquid trap spacing grooves 11 on the shell 1, the symmetry was located on the shell 1, liquid trap 5 was located in the liquid trap spacing groove 11, and can rotate in the relative shell 1 of liquid trap spacing groove 11, be equipped with collecting tank 16 on liquid trap 5, the collecting tank is located in the shell 1, collecting tank 16 sets up in one side of gathering board 3, collecting tank 16 sets up along gathering 3 width direction of board, actuating mechanism work drive collecting tank 5 rotates relative shell 1. When gathering the sample, lift system drive collection board 3 stretches into the sea water, then take out and move to the highest point from the sea water, collecting tank 16 and collection board 3 contactless this moment, actuating mechanism drive liquid trap 5 rotates and makes one side that collecting tank 16 top is close to glass board 13 paste tight glass board 13, lift system drive glass board 13 descends, one side that collecting tank 16 top pasted tight glass board 13 is scraped and is got glass board 13 surface liquid and carry out liquid collection, collect liquid to in collecting tank 16, when gathering board 3 perpendicular deep sea water, then when taking out from the sea water at the uniform velocity, can higher quality sample. On shell 1 was located to collecting bottle 6, be equipped with out liquid hole 17 on the collecting tank 16 for the liquid that the collecting tank 16 of discharging collected, go out liquid hole 17 and can locate the bottom of collecting tank 16, liquid appearance in the collecting tank 16 flows into the collecting bottle through going out liquid hole 17, it is connected with collecting bottle 6 through the pipe to go out liquid hole 17, the degree of depth of collecting tank 16 is steadilyd decrease to keeping away from out liquid hole 17 direction by going out liquid hole 17 department, make liquid hole department be the minimum of collecting tank 16, be convenient for the sea water sample flow in collecting bottle 6 fast.
The driving mechanism comprises a magnet 14, a spring 15 and an electromagnet 10, the magnet 14 is fixedly arranged on the liquid collector 5, the electromagnet 10 is fixedly arranged on the inner side wall of the shell 1 and corresponds to the magnet 14, one end, far away from the electromagnet 10, of the magnet 14 is fixedly connected with one end of the spring 15, the other end of the spring 15 is fixedly arranged on the inner side wall of the shell 1, opposite to the inner side wall of the shell provided with the electromagnet 10, the spring 15 is detachably and fixedly connected with the shell 1 and the magnet 14, the spring is convenient to replace, the spring 15 can be hung on the shell 1 and the magnet 14, when the electromagnet 10 is powered on, the electromagnet 10 generates magnetic force to adsorb the magnet 14 to move towards the electromagnet 10, the magnet 14 moves to drive the liquid collector 5 to rotate, one side, close to the glass plate 13, of the top of the liquid collecting tank 16 is tightly attached to the glass plate 13, when the electromagnet 10, magnet 14 removes and drives liquid trap 5 and rotates, one side that makes the 16 tops of collecting tank be close to glass board 13 is kept away from glass board 13, one side that makes the 16 tops of collecting tank be close to the glass board is not contacted with glass board 13, prevent that glass board 13 from rising the in-process and producing the resistance for the glass board, electro-magnet 10, magnet 14 and spring 15 are all at least one, can be two, 3 both sides of collection board are located to two electro-magnet 10 symmetries, 5 both ends of liquid trap are located to two 14 symmetries of magnet, 3 both sides of collection board are located to two 15 symmetries of spring.
The control system comprises a control cabin 4, the control cabin 4 is in telecommunication connection with the lifting system, the control cabin 4 sends a signal to control the working of the lifting system, the control cabin can control the forward rotation and the reverse rotation of a motor for driving a screw 7 to rotate so as to control the rotating direction of the screw, the ascending and descending of the collecting plate 3 are further controlled, the control cabin 4 can control the lowest position and the highest position of the running of the collecting plate, the ascending and descending speeds of the collecting plate can be intelligently determined according to actual sea conditions, and therefore a micro-surface seawater sample with a certain thickness is collected. The control cabin 4 is in telecommunication connection with the electromagnet 10 and can control the electrification and the outage of the electromagnet 10.
The suspension system comprises a suspension ring 2, the suspension ring 2 is arranged at the top of the shell 1 and is fixedly connected with the shell 1, the marine micro-surface layer sampling device is connected with external lifting devices such as a suspension rod and a folding arm through the suspension ring 2 of the suspension system, the marine micro-surface layer sampling device is conveniently suspended to a working position which is 10-20 cm away from the sea surface for sampling, and the working position is determined according to the sea condition, so that the sampling device can be close to the sea surface as far as possible, and the sample is prevented from being polluted by the sea waves in the sampling process.
The shell material can be 316L stainless steel, and the glass frame, the collection bottle and the liquid collector can adopt polytetrafluoroethylene with non-stick property and strong moisture resistance.
The working principle of the marine micro-surface layer sampling device is as follows:
the sampling device is hung to a working position 10-20 cm away from the sea surface by a suspension mechanism to perform sampling work;
the control cabin 4 sends a signal to drive the screw 7 to rotate, the screw 7 drives the collecting plate to move downwards along the guide rail 8 to the lowest position, the collecting plate 3 extends out of the collecting plate extending hole 9 below the shell and vertically extends into seawater, and when the collecting plate 3 moves to the lowest position, most of the collecting plate 3 is immersed in the seawater;
the control cabin 4 sends a signal to drive the screw 7 to rotate reversely, the screw 7 drives the acquisition plate 3 to move upwards to the highest position along the guide rail 8, the acquisition plate is vertically extracted from water, when the acquisition plate moves to the highest position, the control cabin 4 energizes the electromagnet 10, the electromagnet 10 generates magnetic force to attract the magnet 14 of the liquid collector 5 to drive the liquid collector to rotate after being energized, and one side of the liquid collecting tank 16, which is close to the glass plate, is tightly attached to the glass plate;
the control cabin 4 sends a signal to drive the lead screw 7 to rotate, the lead screw 7 drives the collection plate to move downwards along the guide rail 8 to the lowest position, seawater on the glass plate is scraped into a liquid collection groove of the liquid collector by one side, close to the glass plate 13, of the top of the liquid collection groove 16 in the descending process, the liquid collection groove is guided into the collection bottle 6 through the liquid outlet hole 17 and the guide pipe, when the collection plate moves to the lowest position, the control cabin 4 is powered off for the electromagnet 10, the electromagnet loses magnetic force, and the liquid collector is pulled by the spring 15 to enable the liquid collection groove to be close to the side, close to the glass plate, of the glass plate and far away from the;
judge whether the collecting vessel collects fully, when the collecting vessel is not collected fully, control cabin 4 signals drive lead screw 7 antiport, and the board 3 upward movement is gathered to the highest position to the drive, and operation process carries out liquid sample collection work before the repetition, if the collecting vessel is collected fully, control cabin 4 signals drive lead screw 7 antiport, and the board 3 upward movement is gathered to the highest position to the drive, then stops collection work.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.
Claims (10)
1. A marine micro-surface layer sampling method is characterized by comprising the following steps:
step S1: placing the sampling device at a working position above the sea surface;
step S2; determining the lowest position, the highest position and the running speed of the collecting plate;
step S3: the lifting system drives the collecting plate to move downwards to the lowest position perpendicular to the sea surface, and when the collecting plate moves to the lowest position, most of the glass plate is immersed in seawater;
step S4: the lifting system drives the collection plate to move upwards to the highest position perpendicular to the sea surface, and when the collection plate moves to the highest position, the driving mechanism drives the liquid collection tank to rotate, so that one side, close to the glass plate, of the top of the liquid collection tank is attached to the glass plate;
step S5: the lifting system drives the collecting plate to move downwards to the lowest position perpendicular to the sea surface, in the descending process, liquid on the surface of the glass plate is scraped from one side, close to the glass plate, of the top of the liquid collecting tank to collect the liquid, the liquid is collected into the liquid collecting tank, and the liquid in the liquid collecting tank is guided into the collecting bottle;
step S6: the sampling is stopped.
2. The method for sampling marine microskins as defined in claim 1, wherein said working position is 10-20 cm from the sea surface in step S1.
3. The method for sampling ocean microskin according to claim 1, wherein in step S2, the height of the collection plate is H, the vertical distance from the contact of the collection plate with the top of the liquid collection tank near the glass plate side to the bottom of the collection plate is D1 when the collection plate is at the lowest position, 1/2H < D1< H, and the vertical distance from the contact of the collection plate with the top of the liquid collection tank near the glass plate side to the top of the collection plate when the sampling plate is at the highest position is D2, 1/2H < D2< H.
4. The method for sampling the ocean microskin according to claim 1, wherein in step S2, the operation speed includes a rising speed and a falling speed of the collection plate.
5. The method according to claim 4, wherein the collection plate moves upward at a constant velocity.
6. The method for sampling ocean microskin according to claim 1, further comprising, in said step S5, the steps of:
when the collecting plate moves to the lowest position, the driving mechanism drives the liquid collecting groove to rotate, so that one side, close to the glass plate, of the top of the liquid collecting groove is far away from the glass plate.
7. The method for sampling ocean microskin according to claim 6, further comprising, between the step S5 and the step S6, the steps of:
and judging whether the collecting bottles are fully collected or not, returning to the step S4 when the collecting bottles are not fully collected, driving the collecting plate to move upwards to the highest position perpendicular to the sea surface by the lifting system when the collecting bottles are fully collected, and executing the step S6.
8. The method according to any one of claims 1 to 7, wherein the driving mechanism comprises an electromagnet, a magnet, a spring;
the electromagnet is electrified, magnetic force generated after the electromagnet is electrified adsorbs the magnet to move towards the electromagnet, and the magnet moves to drive the liquid collector to rotate, so that one side of the top of the liquid collecting tank, which is close to the glass plate, is tightly attached to the glass plate;
the electromagnet is powered off, the electromagnet loses magnetic force, the magnet is far away from the electromagnet under the pulling of the elastic force of the spring, the magnet moves to drive the liquid collector to rotate, and one side, close to the glass plate, of the top of the liquid collecting tank is far away from the glass plate.
9. The method according to any one of claims 1 to 7, wherein the lifting system is a screw lifting system, and the screw lifting system comprises a screw.
10. The method according to claim 9, wherein a control cabin of the control system sends a signal to control the screw rod to rotate, the collection plate is driven to move downwards along the guide rail, the control cabin sends a signal to control the screw rod to rotate in the opposite direction, the collection plate is driven to move upwards along the guide rail, and the control cabin controls the electromagnet to be powered on and off.
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| CN202010213250.9A CN111504723B (en) | 2020-03-24 | 2020-03-24 | Ocean micro-surface layer sampling method |
| CA3162937A CA3162937C (en) | 2020-03-24 | 2021-03-10 | Method for sampling sea surface microlayer |
| PCT/CN2021/079960 WO2021190303A1 (en) | 2020-03-24 | 2021-03-10 | Method for sampling sea surface microlayer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358411A (en) * | 2021-06-08 | 2021-09-07 | 天津大学 | Sampling device for sampling ship to acquire ocean micro-surface layer |
| WO2021190303A1 (en) * | 2020-03-24 | 2021-09-30 | 中国海洋大学 | Method for sampling sea surface microlayer |
| CN113933104A (en) * | 2021-10-13 | 2022-01-14 | 青岛海洋科学与技术国家实验室发展中心 | Rotating glass plate type marine micro-surface layer sampling device and marine micro-surface layer sampling method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115290542B (en) * | 2022-07-12 | 2023-05-23 | 深圳中氟科技有限公司 | Test system for insulating coating performance |
| CN115468806B (en) * | 2022-09-28 | 2024-01-12 | 山东省海洋资源与环境研究院(山东省海洋环境监测中心、山东省水产品质量检验中心) | Seawater collecting and processing device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN111504723B (en) | 2021-10-19 |
| CA3162937C (en) | 2024-01-16 |
| CA3162937A1 (en) | 2021-09-30 |
| WO2021190303A1 (en) | 2021-09-30 |
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Address after: No.168, Wenhai Middle Road, Jimo District, Qingdao City, Shandong Province 266237 Patentee after: Qingdao Marine Science and Technology Center Patentee after: OCEAN University OF CHINA Address before: No.1, Wenhai Road, aoshanwei Town, Jimo City, Qingdao City, Shandong Province 266200 Patentee before: QINGDAO NATIONAL LABORATORY FOR MARINE SCIENCE AND TECHNOLOGY DEVELOPMENT CENTER Patentee before: OCEAN University OF CHINA |