CN113252406A - Multilayer water sampling method and water sampling device - Google Patents
Multilayer water sampling method and water sampling device Download PDFInfo
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- CN113252406A CN113252406A CN202110598639.4A CN202110598639A CN113252406A CN 113252406 A CN113252406 A CN 113252406A CN 202110598639 A CN202110598639 A CN 202110598639A CN 113252406 A CN113252406 A CN 113252406A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 257
- 238000005070 sampling Methods 0.000 title claims abstract description 141
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000007789 sealing Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 239000013535 sea water Substances 0.000 abstract description 21
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- 239000000126 substance 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
- G01N1/16—Devices for withdrawing samples in the liquid or fluent state with provision for intake at several levels
Abstract
The invention belongs to the technical field of deep water collection and discloses a multilayer water collection method and a water collection device, wherein in the multilayer water collection method, top covers and bottom covers of a plurality of water collection bottles are respectively connected to a plurality of release modules and are in an open state, and the release modules are electrically connected with a plurality of acoustic receiving ends; then, connecting a winch cable with a plurality of water collecting bottles and throwing the water collecting bottles to deep water; sending a first acoustic signal to an acoustic receiving end through an acoustic transmitting end to detect the depth of the water sampling bottle; sending a second acoustic signal to an acoustic receiving end through an acoustic transmitting end, and releasing the top cover and the bottom cover by the release module to seal the water collection bottle to enable the water collection bottle to be in a closed state, so that one-time sampling is completed; the length of the winch cable is adjusted, and a plurality of water collecting bottles realize sampling at different depths. The invention adopts the underwater acoustic control principle to obtain the depth of the water layer where the water collecting bottle is located and the water collecting of the water collecting bottle, finishes the sample collection of seawater on the water layer with a plurality of depths by throwing in once, and has simple structure, low cost and high water collecting efficiency.
Description
Technical Field
The invention relates to the technical field of deep water collection, in particular to a multilayer water collection method and a water collection device.
Background
The physical and chemical property analysis of seawater is a conventional means for human beings to know and research the ocean, and the water sampler is important equipment for obtaining seawater for analysis. At present, the water sampler mainly comprises two types, one type is that the opening and closing of a water sampling bottle are controlled through a cable to finish the collection of seawater samples of a plurality of water layers at different depths; one is to accomplish the collection of a seawater sample at a certain depth by mechanical triggering. The seawater collecting device has high collecting efficiency, can collect seawater of a plurality of water layers by one-time retraction, but needs a special coaxial armored cable winch for matching, has high winch manufacturing cost and large occupied volume, and improves the operation and maintenance cost; the device has a simple structure, but the sampling efficiency is extremely low, only the collection of seawater with a single depth can be completed at one time, and the requirement of profile measurement cannot be met rapidly.
Disclosure of Invention
The invention aims to provide a multilayer water sampling method and a water sampling device, wherein the water sampling bottle can collect samples of water layers with multiple depths at one time, the water sampling efficiency is high, and meanwhile, the water sampling device is simple in structure and low in cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
a multilayer water collection method comprises the following steps:
s1, respectively connecting top covers and bottom covers of a plurality of water collecting bottles to a plurality of release modules, wherein the water collecting bottles are in an open state, and then electrically connecting the release modules with a plurality of acoustic receiving ends;
s2, connecting a winch cable with the plurality of water collecting bottles and throwing the water collecting bottles into deep water;
s3, sending a first acoustic signal to the acoustic receiving end through the acoustic transmitting end to detect the depth of the water sampling bottle;
s4, sending a second acoustic signal to the acoustic receiving end through the acoustic transmitting end, and enabling the releasing module to release the top cover and the bottom cover to seal the water collection bottle to be in a closed state to finish one-time sampling;
s5, adjusting the length of the winch cable, and repeatedly executing the steps S3-S4; and a plurality of water collecting bottles realize sampling at different depths.
Optionally, the first acoustic signal is a detection signal for interrogating the depth of the water sampling bottle, and the second acoustic signal is a sampling signal for controlling the release module.
Optionally, the first sampling position of the water collection bottle is a maximum water depth position, and then the winch cable is recovered to gradually pull up the water collection bottle and sample until all the water collection bottles are sampled.
Optionally, the acoustic transmitting end is arranged above the water surface, and the acoustic receiving end, the releasing module and the water sampling bottle are assembled together and then connected to the winch cable to throw in the deep water for sampling.
The utility model provides a water sampling device, includes water sampling subassembly, acoustics transmitting terminal, acoustics receiving terminal and release module, the release module with mechanical connection between the water sampling subassembly, with the electricity is connected between the acoustics receiving terminal, acoustics transmitting terminal can launch acoustic signal for the acoustics receiving terminal, the water sampling subassembly includes a plurality of water sampling bottles, and a plurality of water sampling bottles are connected the winch hawser and in order to put in.
Optionally, the plurality of water collection bottles are divided into a plurality of groups, the plurality of groups of water collection bottles are all fixed on the water collection bracket, and each group of water collection bottles is connected to the same release module.
Optionally, the water sampling bottle is provided with a top cover and a bottom cover, the top cover and the bottom cover can be respectively covered on the top and bottom openings of the water sampling bottle for sealing, an elastic element is connected between the top cover and the bottom cover, and the top cover and the bottom cover are respectively connected to the release module through pull ropes.
Optionally, the acoustic receiving end is provided with a plurality of acoustic receiving ends, and the plurality of acoustic receiving ends and the plurality of groups of water collection bottles are alternately arranged at intervals.
Optionally, the number of the release modules is multiple, the release modules are arranged on the acoustic receiving ends and electrically connected with the acoustic receiving ends, and the top cover and the bottom cover of each group of the water collection bottles are simultaneously connected to the same release module.
Optionally, the elastic member is a bungee cord, a spring, or an elastic rubber band.
The invention has the beneficial effects that:
the water sampling method and the water sampling device can be used for collecting and releasing water sampling bottles through a conventional steel cable or fiber cable winch on a common ship on the premise of not being provided with a special coaxial armored cable winch, the underwater acoustic control principle is adopted, the depth of a water layer where the water sampling bottles are located is obtained in real time through a first acoustic signal, after the water depth of water to be sampled is reached, a release module is opened through a second acoustic signal, the water sampling bottles are closed to realize water sampling, and the water sampling method and the water sampling device are used for completing sample collection of seawater in the water layer at multiple depths through once throwing.
Drawings
FIG. 1 is a flow chart of a water recovery method of the present invention;
fig. 2 is a schematic structural diagram of a water sampling device of the present invention.
In the figure:
1. a water collection assembly; 11. a water collecting bottle; 111. a top cover; 112. a bottom cover; 12. a water collecting bracket; 121. a connecting member; 2. an acoustic transmitting end; 3. an acoustic receiving end; 4. a release module; 5. a winch cable; 6. pulling a rope; 7. a cable.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; 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 in specific cases to those skilled 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.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The invention provides a multilayer water collection method, which comprises the following steps as shown in figures 1-2:
s1, connecting the top cover 111 and the bottom cover 112 of the plurality of water collection bottles 11 to the plurality of release modules 4, respectively, wherein the water collection bottles 11 are in an open state, and the plurality of release modules 4 are electrically connected to the plurality of acoustic receiving terminals 3;
s2, connecting the winch cable 5 with a plurality of water collecting bottles 11 and throwing the water collecting bottles into deep water;
s3, sending a first acoustic signal to the acoustic receiving terminal 3 through the acoustic transmitting terminal 2 to detect the depth of the water sampling bottle 11;
s4, sending a second acoustic signal to the acoustic receiving end 3 through the acoustic transmitting end 2, and releasing the top cover 111 and the bottom cover 112 by the release module 4 to seal the water collection bottle 11 to be in a closed state, so as to finish one-time sampling;
s5, adjusting the length of the winch cable 5, and repeatedly executing the steps S3-S4; the plurality of water sampling bottles 11 perform sampling at different depths.
It should be noted that the water sampling bottle 11 includes a top cover 111 and a bottom cover 112 and is in an open state when being lowered, so that the seawater sample can enter the inside of the water sampling bottle 11, and when sampling is required, the top cover 111 and the bottom cover 112 are sealed at two ends of the water sampling bottle 11 to realize sampling. The top cover 111 and the bottom cover 112 are connected to the same releasing module 4, so that the top cover 111 and the bottom cover 112 can be controlled to be closed at the same time, and a required amount of seawater samples can be obtained. According to the invention, the release module 4, the acoustic transmitting end 2 and the acoustic receiving end 3 are combined into the acoustic transducer, the falling depth of the water sampling bottle 11 can be detected in real time, acoustic signals can be converted into electric signals to control the release operation of the release module 4 to sample, the acoustic signals are controlled at different depths, communication facilities such as cables and the like are not needed, only simple winches and cables are needed to be connected with a plurality of water sampling bottles 11, when the water sampling bottles 11 fall to different depths, the samples are sequentially taken, the multilayer depth sampling is put at one time, the cost is saved, and the operation is convenient and simple.
The water sampling method provided by the embodiment of the invention can be used for collecting and releasing water by a conventional steel cable or fiber cable winch on a common ship on the premise of not being provided with a special coaxial armored cable winch, the winch cable 5 is connected with a plurality of water sampling bottles 11, the underwater acoustic control principle is adopted, the depth of a water layer where the water sampling bottles 11 are located is obtained in real time through a first acoustic signal, after the water reaches the water depth of water to be sampled, a release module 4 is opened through a second acoustic signal, the water sampling bottles 11 are closed to realize sampling, and the water sampling method is adopted to collect and release seawater samples of the water layers with multiple depths at one time, so that the structure is simple, the cost is low, and the water sampling efficiency is high.
Alternatively, the first acoustic signal is a detection signal that interrogates the depth of the bottle 11 and the second acoustic signal is a sampling signal that controls the release module 4.
According to the difference of acoustic signals, the acoustic transducer controls the water collecting depth and the water collecting operation of the water collecting bottle 11, multiple layers of water collecting are released for multiple times, the water collecting efficiency is high, the water collecting bottle 11 is connected with a cable of a common winch, cable connection and control are not needed, and the cost is greatly saved.
Optionally, the first sampling position of the water collection bottle 11 is the maximum water depth position, and then the winch cable 5 is retracted to gradually pull up the water collection bottle 11 and sample until all the water collection bottles 11 are sampled.
According to the water sampling method, the plurality of water sampling bottles 11 are directly thrown to the deepest sampling or water sampling depth at one time, and then the winch cable 5 is gradually recovered, so that the seawater sample with the target depth can be collected, and the difficulty of subsequent water sampling is reduced.
Optionally, the acoustic transmitting end 2 is arranged above the water surface, and the acoustic receiving end 3 and the releasing module 4 are assembled together with the water sampling bottle 11 and then connected to the winch cable 5 to throw samples into deep water.
It can be understood that in the water sampling method provided by the embodiment, the acoustic transmitting end 2 on the water transmits an acoustic signal to the underwater acoustic receiving end 3 through the water and the underwater, and the acoustic signal is converted into an electric signal under the water to be electrically controlled when necessary, so that the releasing module 4 releases and controls the top cover 111 and the bottom cover 112 of the water sampling bottle 11 under the control of the electric signal to sample water, thereby realizing seawater sampling. Because of the acoustic signal control, the electric signal is transmitted without a cable, the acoustic signal can be converted into the electric signal through the acoustic transducer, the deep sea sampling is easier and the cost is lower, and the application of the acoustics in the field of seawater sampling is expanded.
Based on the water collection method provided by the above embodiment, the invention further provides a water collection device, based on the application of the acoustic transducer in the acoustic principle in seawater sampling, as shown in fig. 2, the water collection device of the embodiment adopts the acoustic releaser, the acoustic releaser comprises the acoustic transducer and a release module 4, the acoustic transducer comprises an acoustic transmitting end 2 and an acoustic receiving end 3, the water collection device provided by the embodiment comprises a water collection assembly 1, the acoustic transmitting end 2, the acoustic receiving end 3 and the release module 4, wherein the water collection assembly 1 is mechanically connected with the release module 4, the release module 4 is electrically connected with the acoustic receiving end 3, the acoustic transmitting end 2 can transmit an acoustic signal to the acoustic receiving end 3, the water collection assembly 1 comprises a plurality of water collection bottles 11, and the plurality of water collection bottles 11 are connected with the winch 5 to be thrown.
As shown in fig. 2, in this embodiment, the release module 4 is disposed at the bottom end of the acoustic receiving end 3, the release module 4 is connected to a plurality of water sampling bottles 11, after the water sampling bottles are lowered, the acoustic transmitting end 2 can transmit a first acoustic signal to the acoustic receiving end 3 to acquire the lowering depth of the water sampling bottles 11 in real time, when the water sampling bottles 11 are lowered to a specified depth and water sampling is required, the acoustic transmitting end 2 generates a second acoustic signal to the acoustic receiving end 3 and converts the second acoustic signal into an electric signal to be transmitted to the release module 4, and the release module 4 releases the water sampling bottles 11 to collect water, so as to obtain a seawater sample at the depth.
It can be understood, among the foretell water sampling device, need not be equipped with special coaxial armoured cable winch, regular steel cable or the fiber cable winch that is equipped with on ordinary boats and ships receive and release, a plurality of water sampling bottles 11 are connected to winch hawser 5, adopt the acoustics control principle under water, acquire water sampling bottle 11 place water layer degree of depth through first acoustic signal in real time, after the depth of water that reachs to want the water sampling, open release module 4 through the second acoustic signal, close water sampling bottle 11 and realize the sampling, adopt this water sampling device once to receive and release the sample collection of accomplishing a plurality of degree of depth water layer sea water, moreover, the steam generator is simple in structure, low cost, it is efficient to adopt water.
Optionally, the plurality of water collection bottles 11 are divided into a plurality of groups, the plurality of groups of water collection bottles 11 are all fixed on the water collection bracket 12, and each group of water collection bottles 11 is connected to the same release module 4.
In the embodiment shown in fig. 2, a plurality of water collecting bottles 11 and acoustic receiving ends 3 are fixed on a water collecting bracket 12, and the water collecting bracket 12 is connected with a winch through a winch cable to collect water below the water collecting bottles 11. In this embodiment, in a plurality of water sampling bottles 11, every three water sampling bottles 11 are a set of, and every group of water sampling bottles is connected with a release module 4, and when needing to adopt water, release module 4 once can release a plurality of water sampling bottles 11 in order to realize gathering a plurality of samples, guarantees the sampling rate.
Alternatively, the water collection bottle 11 is provided with a top cap 111 and a bottom cap 112, the top cap 111 and the bottom cap 112 being capable of covering the top and bottom openings of the water collection bottle 11, respectively, for sealing, an elastic member being connected between the top cap 111 and the bottom cap 112, the top cap 111 and the bottom cap 112 being connected to the release module 4 by a pulling string 6, respectively.
As shown in fig. 2, the water sampling bottle 11 is provided with a top cover 111 and a bottom cover 112, in an initial state, the top cover 111 and the bottom cover 112 of each water sampling bottle 11 are connected to the same release module 4 through the pull rope 6, and after the release module 4 releases the pull rope 6, the top cover 111 and the bottom cover 112 can be covered at two ends of the water sampling bottle 11 under the action of elastic members so as to seal the seawater sample inside the water sampling bottle 11, thereby realizing the adoption. It can be understood that the water collecting bottle 11 is in a communicated state with the seawater in the descending process and before water collection, so that a seawater sample with a corresponding depth can be obtained conveniently, and therefore, the sampling can be realized only by sealing the body of the water collecting bottle 11 during water collection. When a plurality of water sampling bottles 11 are connected to one release module 4, the top covers 111 and the bottom covers 112 of the water sampling bottles 11 are connected to the release module 4 through the pull ropes 6 at the same time, so that a plurality of samples of the same water sampling depth are collected, and the sampling rate is ensured.
Optionally, a plurality of acoustic receiving terminals 3 are provided, and the plurality of acoustic receiving terminals 3 and the plurality of groups of water collection bottles 11 are alternately arranged at intervals.
As shown in fig. 2, this embodiment adopts water sampling support 12 of circular frame, a plurality of water sampling bottles 11 and a plurality of acoustics receiving terminal 3 enclose to establish water sampling support 12 setting and fixed, in this embodiment, every three water sampling bottle 11 is a set of, every group water sampling bottle 11 and acoustics receiving terminal 3 interval and set up in turn, the group number of water sampling bottles 11 is the same with the number of acoustics receiving terminal 3, the bottom of every acoustics receiving terminal 3 all is provided with release module 4, top cap 111 and bottom cap 112 of every group water sampling bottle 11 connect respectively on an adjacent release module 4 through stay cord 6, and be convenient for control, and realize the water sampling of the multilayer degree of depth.
Alternatively, a plurality of the releasing modules 4 are provided on a plurality of the acoustic receiving terminals 3 and are electrically connected with the acoustic receiving terminals 3, and the top cover 111 and the bottom cover 112 of each group of the water collection bottles 11 are simultaneously connected to the same releasing module 4.
Optionally, the elastic member is a bungee cord, a spring, or an elastic rubber band. The two ends of the elastic element are respectively connected with the top cover 111 and the bottom cover 22 of the water collecting bottle 11 and are positioned in the water collecting bottle 11, and after the release module 4 releases the pull rope 6, the top cover 111 and the bottom cover 112 can be covered at the two ends of the water collecting bottle 11 under the action of the elastic element, so that automatic water collection control is realized.
It should be added that, a plurality of water sampling bottles 11 are fixed on the water sampling support 12, in the process of the lower part, in order to ensure that the plurality of water sampling bottles 11 are in the vertical state as much as possible, the central shaft of the water sampling support 12 is provided with a connecting piece 121 connected with the winch cable 5, the water sampling support 12 adopts a circular symmetrical structure, and the plurality of water sampling bottles 11 and the acoustic receiving end 3 are uniformly arranged on the circumference, so that the balance keeping and the water sampling control are facilitated. In addition, the acoustic transmitting terminal 2 can be placed as close to the sea level as possible by means of a cable 7 to ensure good communication between the acoustic transmitting terminal 2 and the acoustic receiving terminal 3. In the embodiment of the invention, a plurality of water collecting bottles 11 and water collecting supports 12 form a water collecting assembly 1, the water collecting assembly 1, an acoustic receiving end 3 and a release module 4 form an underwater part, the underwater part is lowered through a winch cable 5, an acoustic transmitting end 2 and a cable 7 form an above-water part, the above-water part and the underwater part realize water collection through acoustic signal communication and control, the water collecting efficiency is high, and the cost is low.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A multilayer water collection method is characterized by comprising the following steps:
s1, connecting the top covers (111) and the bottom covers (112) of the water collection bottles (11) with the release modules (4) respectively, enabling the water collection bottles (11) to be in an open state, and electrically connecting the release modules (4) with the acoustic receiving ends (3);
s2, connecting a plurality of water collecting bottles (11) by winch cables (5) and throwing the water collecting bottles into deep water;
s3, sending a first acoustic signal to the acoustic receiving end (3) through the acoustic transmitting end (2) to detect the depth of the water sampling bottle (11);
s4, sending a second acoustic signal to the acoustic receiving end (3) through the acoustic transmitting end (2), and releasing the top cover (111) and the bottom cover (112) by the releasing module (4) to cover the water collection bottle (11) to enable the water collection bottle to be in a sealed state, so that one-time sampling is completed;
s5, adjusting the length of the winch cable (5), and repeatedly executing the steps S3-S4; the sampling is realized by a plurality of water collecting bottles (11) at different depths.
2. The multi-layered water sampling method according to claim 1, wherein the first acoustic signal is a detection signal that interrogates the depth of the water sampling bottle (11) and the second acoustic signal is a sampling signal that controls the release module (12).
3. The multi-story water collection method according to claim 1, wherein the first sampling position of the water collection bottles (11) is a maximum water depth position, and then the winch cable (5) is retracted to gradually pull up the water collection bottles (11) and sample until all the water collection bottles (11) are sampled.
4. The method for multi-story water collection according to claim 1, wherein the acoustic transmitter (2) is located above the water surface, and the acoustic receiver (3) and the release module (4) are assembled with the water collection bottle (11) and then connected to the winch cable (5) to deliver the sample to the deep water.
5. The utility model provides a water sampling device, its characterized in that, including water sampling subassembly (1), acoustics transmitting terminal (2), acoustics receiving terminal (3) and release module (4), release module (4) with mechanical connection between water sampling subassembly (1), with electricity is connected between acoustics receiving terminal (3), acoustics transmitting terminal (2) can launch acoustics signal for acoustics receiving terminal (3), water sampling subassembly (1) includes a plurality of water sampling bottle (11), and winch hawser (5) are connected in order to put in a plurality of water sampling bottle (11).
6. The water sampling device according to claim 5, characterized in that the water sampling bottles (11) are divided into a plurality of groups, the groups of water sampling bottles (11) are all fixed on a water sampling support (12), and each group of water sampling bottles (11) is connected to the same release module (4).
7. A water sampling device according to claim 5, characterized in that the water sampling bottle (11) is provided with a top cover (111) and a bottom cover (112), the top cover (111) and the bottom cover (112) can be respectively arranged at the top and bottom openings of the water sampling bottle (11) for sealing, an elastic member is connected between the top cover (111) and the bottom cover (112), and the top cover (111) and the bottom cover (112) are respectively connected to the release module (4) through a pull rope (6).
8. The water sampling device according to claim 7, characterized in that a plurality of acoustic receiving ends (3) are provided, and the plurality of acoustic receiving ends (3) and the plurality of water sampling bottles (11) are alternately arranged at intervals.
9. A water sampling device according to claim 8, characterized in that a plurality of said releasing modules (4) are provided, a plurality of said releasing modules (4) are provided on a plurality of said acoustic receiving terminals (3) and are electrically connected with said acoustic receiving terminals (3), and said top cover (111) and said bottom cover (112) of each group of said water sampling bottles (11) are simultaneously connected to the same releasing module (4).
10. The water sampling device of claim 7, wherein the elastic member is a bungee cord, a spring, or an elastic rubber band.
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| CN202110598639.4A CN113252406A (en) | 2021-05-31 | 2021-05-31 | Multilayer water sampling method and water sampling device |
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Application publication date: 20210813 |