CN114323806B - In-situ stratified sampling device and sampling method for subglacial surface water - Google Patents
In-situ stratified sampling device and sampling method for subglacial surface water Download PDFInfo
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- CN114323806B CN114323806B CN202110712263.5A CN202110712263A CN114323806B CN 114323806 B CN114323806 B CN 114323806B CN 202110712263 A CN202110712263 A CN 202110712263A CN 114323806 B CN114323806 B CN 114323806B
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- 238000011065 in-situ storage Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000005070 sampling Methods 0.000 title abstract description 22
- 239000002352 surface water Substances 0.000 title description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 171
- 239000010410 layer Substances 0.000 claims abstract description 30
- 239000002344 surface layer Substances 0.000 claims abstract description 11
- 238000005553 drilling Methods 0.000 claims description 6
- 238000002474 experimental method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 5
- 239000005457 ice water Substances 0.000 description 5
- 210000003813 thumb Anatomy 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000013441 quality evaluation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
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Abstract
The invention discloses an in-situ layered acquisition device and a sampling method for a water body on an ice surface layer, wherein the acquisition device comprises a fixing device, a distance measuring device arranged on the upper part of the fixing device and a layered device arranged on the bottom of the fixing device, the distance measuring device is connected with the fixing device in a sliding mode so as to measure the depths of different water samples in real time, a plurality of flow guiding pieces are arranged in the layered device, one ends of the flow guiding pieces respectively correspond to the water samples with different depths, and the other ends of the flow guiding pieces guide the water samples into a collecting device. Through the mode, the water area high-precision layered sampling device is convenient to carry and convenient to operate, can finish high-precision layered sampling of the water area under the ice layer by only one set of device, can timely read the water depth of each sample, and is convenient for subsequent experiments.
Description
Technical Field
The invention relates to the field of water quality environment monitoring and sampling, in particular to an in-situ layered acquisition device and a sampling method for a subsurface water body.
Background
Water is an essential element for human survival and has great significance for every country. The country makes regulations for periodic water environment quality evaluation, prediction and prediction of water areas.
In recent years, students at home and abroad sequentially research and find that pollutants dissolved in frozen water bodies in the process of freezing rivers, reservoirs, lakes and oceans in winter can gradually discharge pollutants to the lower water bodies along with downward condensation of ice layers, namely the salt discharging effect in the traditional sense. This phenomenon results in obvious layering effect of water quality of the surface water body of the ice water interface.
However, the limitation of the current sampling technology is that the traditional technology is to sample the water body at the opening of the ice hole in a layering way after the ice hole is chiseled in advance on the ice surface of the ice sealing areas such as lakes, reservoirs, oceans and the like. The layering collection method has a serious defect that at the moment of chiseling of the ice layer, the water body under the ice can quickly flow into the ice hole, so that the water body on the surface layer of the ice water interface is severely mixed, and the water quality of the layering sampling water body is seriously distorted. Moreover, the instruments employed by these techniques are cumbersome and inconvenient to carry.
The prior art provides a layering water sample collector under ice, and the device includes that the water sampler casing is formed by bonding of the cylindrical shell of bottomless of a plurality of equiheight, sets up in braced frame, be equipped with annular baffle in the bottom of every cylindrical shell of bottomless, the through-hole in the middle of the annular baffle is the water inlet, is equipped with the circular apron that corresponds with it below every annular baffle, the bonding has sealing washer above the circular apron, circular apron is all fixed on the screw thread connecting rod and is located the cylindrical shell of bottomless that corresponds, screw thread connecting rod runs through the through-hole in the middle of whole water sampler casing and the annular baffle from top to bottom, is connected with the rubber outlet pipe in the lower part of every cylindrical shell of bottomless one side.
The technology simplifies the acquisition equipment, is convenient to carry, but the layered water taking precision of the device is not high, an additional distance measuring device is needed to accurately record the water depth of a corresponding water sample, and an additional fixing device is needed to fix the acquisition device, so that the acquisition device is ensured to be vertically placed in water.
Therefore, it is necessary to design an in-situ layered acquisition device and a sampling method for the water body on the surface layer under ice, which have the advantages of simple structure, portability and high layered water taking precision.
Disclosure of Invention
In order to overcome the problems, the invention provides the device and the method for in-situ layered acquisition of the water body on the surface layer under the ice, which have the advantages of simple structure, convenience in carrying and convenience in operation, can finish high-precision layered sampling of the water area under the ice layer by only one set of device, can timely read the water depth of each sample, and are convenient for subsequent experiments.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The device comprises a fixing device, a distance measuring device arranged on the upper portion of the fixing device and a layering device arranged on the bottom of the fixing device, wherein the distance measuring device is connected with the fixing device in a sliding mode to measure the depths of different water samples in real time, a plurality of flow guiding pieces are arranged in the layering device, one ends of the flow guiding pieces respectively correspond to the collected water samples with different depths, and the other ends of the flow guiding pieces guide the water samples into a collecting device.
Further, the fixing device is of an L-shaped structure, comprises a vertical end arranged along the vertical direction and a horizontal end hinged with the bottom end of the vertical end, wherein a first fixing piece is movably connected to the joint of the vertical end and the horizontal end and used for fixing the vertical end and the horizontal end after being adjusted to a preset position.
Further, the distance measuring device comprises a sleeve sleeved on the vertical end and a cross rod with one end connected with the sleeve, the sleeve slides up and down along the vertical end, and the cross rod is arranged in parallel with the horizontal end.
Further, a second fixing piece is movably connected to the joint of the cross rod and the sleeve.
Further, scale values are arranged on the outer side of the vertical end along the vertical direction.
The layering device comprises a layering rod and a plurality of mounting holes arranged on the periphery of the layering rod in the vertical direction, the layering rod is arranged in the vertical direction and hinged with one end, far away from the vertical end, of the horizontal end, and a third fixing piece is movably connected to the joint of the layering rod and the horizontal end.
Furthermore, the mounting holes are distributed at equal intervals, the axes of the mounting holes are parallel to the horizontal line, and the diameters of the mounting holes are 5-8mm.
Further, the plurality of flow guiding pieces comprise water taking hard pipes which are respectively and correspondingly accommodated in the plurality of mounting holes, and water taking hoses which are respectively and correspondingly connected with one ends, close to the vertical ends, of the plurality of water taking hard pipes, wherein the outer diameter of each water taking hard pipe is the same as the diameter of each mounting hole, both ends of each water taking hard pipe penetrate through the mounting holes, water taking holes are formed in the water inlet ends of the water taking hard pipes, one ends of the water taking hoses are sleeved on the outer sides of the water taking hard pipes, and the other ends of the water taking hoses are connected with water taking pumps arranged above ice layers.
Furthermore, a control valve is arranged on a connecting pipeline of the water taking hose and the water taking pump, and a first wire harness fixer and a second wire harness fixer are respectively arranged on the vertical end and the horizontal end so that the water taking hose runs along the fixing device.
An in-situ layered acquisition method for an ice surface water body adopts the in-situ layered acquisition device for the ice surface water body, and comprises the following steps:
s1, drilling holes on ice surface, and ensuring that the diameter of the drilled holes is larger than 20cm;
S2, taking out the collecting device, and loosening the first fixing piece and the third fixing piece to enable the vertical end, the horizontal end and the layering rod to be in a vertical state, so that the whole collecting device is in an unfolding state;
S3, fastening the first fixing piece and the third fixing piece, and ensuring that the vertical end, the horizontal end and the layering rod do not move relative to each other;
s4, slowly lowering the bottom end of the layering rod from the drilling hole;
S5, when the lower structure of the fixing device is completely positioned below the ice surface, slowly adjusting the horizontal end to be in a horizontal state, and pushing the horizontal end to be clung to the lower end surface of the ice layer to slowly move forwards until the vertical end touches the ice layer;
S6, pushing the sleeve downwards until the cross rod is clung to the upper end face of the ice layer, and recording the scale value of the cross rod;
s7, opening the water taking pump, and respectively sucking water samples with different depths into the collecting device through the guide piece.
Compared with the prior art, the invention has the beneficial effects that:
1. According to the device for in-situ layering acquisition of the water body on the surface layer under the ice, provided by the invention, the layering device which penetrates into the water is arranged at the lower part of the fixing device, and different layering intervals are arranged on the layering device, so that water samples with different depths are guided into the collecting device through the guide piece, and in-situ acquisition of water samples of different water layers under the ice is realized. Meanwhile, the water disturbance to the ice water interface when the sampling hole is cut on the ice surface is reduced to the greatest extent by the sampling mode. The device is also provided with a distance measuring device on the upper part of the fixing device, so that the water depths of different water samples can be measured rapidly, and the subsequent test is convenient. According to the invention, through the mutual matching connection of the fixing device, the distance measuring device and the layering device, a series of operations such as fixing the sampling device, in-situ collection of water samples of different water layers under ice, water sample distance measurement and the like can be completed by a single person only through one set of device, and the whole device is simple and portable, convenient to operate and high in practicability.
2. According to the device for in-situ layering acquisition of the water body on the surface layer under the ice, the fixing device is arranged to be the vertical end and the horizontal end which are hinged with each other, and the layering rod is hinged with the horizontal end, so that the whole device is folded, retracted and carried conveniently. And fixing pieces are arranged at all the hinged positions so as to fix the layering rod, the vertical end and the horizontal end after the positions are adjusted relatively.
3. According to the device for in-situ layering acquisition of the water body on the surface layer under the ice, the fixing device is of the L-shaped structure, and the transverse rod is connected to the vertical end of the fixing device in a sliding mode, so that the device is tightly attached to the ice layer through the cooperation of the transverse rod and the fixing support when sampling is carried out, and the layering rod is ensured to be fixed in a vertical state.
Drawings
FIG. 1 is a schematic structural view of an in-situ stratified collection device for a subsurface water body of ice;
FIG. 2 is a schematic diagram of a part of the structure of the device for in-situ layered acquisition of the water body on the surface layer under ice of the invention;
FIG. 3 is a schematic structural view of a layering rod of the subsurface water body in-situ layering acquisition device of the invention;
FIG. 4 is an enlarged partial schematic view of area A of FIG. 1;
FIG. 5 is a graph of the results of a sampling experiment of the in-situ stratified acquisition device for the subsurface water body of the present invention;
The marks of all the components in the drawing are 110, a vertical end, 111, a first wire harness fixer, 112, a scale value, 120, a horizontal end, 121, a second wire harness fixer, 130, a sleeve, 140, a cross rod, 160, a first fixing piece, 150, a second fixing piece, 170, a layering rod, 171, a water taking hard tube, 1711, a water taking hole, 172, a water taking hose, 1721, a control valve, 1722, a water taking pump, 173, a mounting hole and 180, and a third fixing piece.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
Example 1
As shown in fig. 1 to 2, an in-situ layered acquisition device for a water body on an ice surface layer comprises a fixing device, a distance measuring device arranged on the upper part of the fixing device and a layered device arranged on the bottom of the fixing device. The distance measuring device is in sliding connection with the fixing device so as to measure the depths of different water samples in real time. A plurality of flow guiding pieces are arranged in the layering device, one ends of the flow guiding pieces respectively correspond to water samples with different depths, and the other ends of the flow guiding pieces guide the water samples into the collecting device.
So set up, through setting up the layering device that stretches into to the aquatic in fixing device's lower part to set up different layering intervals on layering device, water sample with different degree of depth is through water conservancy diversion piece water conservancy diversion to collection device in, thereby realize the normal position collection of the different water layer water samples under the ice. Meanwhile, the water disturbance to the ice water interface when the sampling hole is cut on the ice surface is reduced to the greatest extent by the sampling mode. The device is also provided with a distance measuring device on the upper part of the fixing device, so that the water depths of different water samples can be measured rapidly, and the subsequent test is convenient. According to the invention, through the mutual matching connection of the fixing device, the distance measuring device and the layering device, a series of operations such as fixing the sampling device, in-situ collection of water samples of different water layers under ice, water sample distance measurement and the like can be completed by a single person only through one set of device, and the whole device is simple and portable, convenient to operate and high in practicability.
As shown in fig. 1-2, in some embodiments, the fixture is provided in an L-shaped configuration and includes a vertical end 110 disposed in a vertical direction, and a horizontal end 120 hinged to a bottom end of the vertical end 110. In particular, the length of the vertical end 110 exceeds the average ice layer thickness of the local area for many years plus 0.5 meters.
Both the vertical end 110 and the horizontal end 120 are capable of pivoting about the hinge. The hinge between the vertical end 110 and the horizontal end 120 is movably connected with a first fixing member 160, where the first fixing member 160 is used to fix the vertical end 110 and the horizontal end 120 after being adjusted to a preset position, so as to ensure that the vertical end 110 and the horizontal end 120 do not rotate relatively. In particular, the first fixing member 160 is preferably a thumb screw and a nut connected to the tail end of the thumb screw. The butterfly screw and the nut are combined, so that the butterfly screw can be directly and manually screwed or unscrewed, and the butterfly screw screwing device is simple in structure and convenient for a user to operate. When the collecting device is required to be used, the vertical end 110 and the horizontal end 120 are rotated to be in a mutually perpendicular state, the butterfly screw is manually screwed down to fix the vertical end 110 and the horizontal end 120 relatively, and when the collecting device is required to be folded, the butterfly screw is manually unscrewed to rotate the vertical end 110 and the horizontal end 120 to be folded, so that the collecting device is folded and folded, and the collecting device is convenient to carry.
As shown in fig. 1-2, in other embodiments, the ranging device includes a sleeve 130 that is sleeved over the vertical end 110, and a cross bar 140 that is connected at one end to the sleeve 130. In particular, the length of the crossbar 140 is not less than 0.5 meters. The cross bar 140 is disposed in parallel with the horizontal end 120 to abut and fix the fixing means against the ice layer through the horizontal end 120 and the cross bar 140 and to secure the vertical end 110 in a vertical state. At the same time, the cross bar 140 abuts against the upper end surface of the ice layer, facilitating the user to step on the cross bar 140 and thereby keep the entire device stationary.
In particular, the outer side of the vertical end 110 is provided with a scale value 112 along the vertical direction, and the sleeve 130 slides up and down along the vertical end 110, so that the depth of the water sample can be determined according to the scale value 112 where the cross bar 140 is located. Meanwhile, the cross rod 140 is abutted against the upper end face of the ice layer, the horizontal end 120 is abutted against the lower end face of the ice layer, and a user can directly determine the thickness of the ice layer and better determine the depth of different water samples.
The joint of the cross bar 140 and the sleeve 130 is movably connected with a second fixing member 150. The second securing member 150 is preferably a thumb screw that is tightened to secure the cross bar 140 to the sleeve 130 as the sleeve 130 is slid into place along the vertical end 110.
As shown in fig. 1 to 3, in some embodiments, the layering device includes a layering rod 170 and a plurality of mounting holes 173 provided at a circumferential side of the layering rod 170 in a vertical direction. Specifically, the length of the layering rod 170 is not less than 0.5 meters. The plurality of mounting holes 173 are distributed at equal intervals, the distance between two adjacent mounting holes 173 should be more than 5cm, and especially when the distance between two adjacent mounting holes 173 is 10cm, the layering effect is optimal. The mounting holes 173 have a diameter of 5-8mm and their axes are parallel to the horizontal line.
The layering rod 170 is disposed along a vertical direction and hinged to one end of the horizontal end 120, which is far away from the vertical end 110, so that the layering rod 170 can rotate around the horizontal end 120, and is convenient to retract and release the layering rod and the horizontal end 120. A third fixing member 180 is movably connected to the connection portion between the layering rod 170 and the horizontal end 120. The third fixing member 180 is preferably a thumb screw and a nut coupled to the tail end of the thumb screw. The butterfly screw and the nut are combined, so that the butterfly screw can be directly and manually screwed or unscrewed, and the butterfly screw screwing device is simple in structure and convenient for a user to operate.
As shown in fig. 1 to 4, in other embodiments, the plurality of flow guide members include water intake hard tubes 171 respectively accommodated in the plurality of mounting holes 173, and water intake hoses 172 respectively connected to ends of the plurality of water intake hard tubes 171 near the vertical ends 110. The outer diameter of the water intake hard tube 171 is the same as the diameter of the mounting hole 173 to ensure that water sample does not seep into the stratification lever 170. And, because the axis of mounting hole 173 is parallel with the horizon, when water intaking hard tube 171 holds in mounting hole 173, the pipe shaft of water intaking hard tube 171 keeps the level to inhale the water sample level of water layer that water intaking hard tube 171 corresponds, guarantee the layering effect of water sample. Both ends of the water taking hard tube 171 pass through the mounting holes 173, the water inlet end of the water taking hard tube extends out of the layering rod 170 for 3-8cm, and the water outlet end of the water taking hard tube extends out of the layering rod 170 for 2-4cm. In addition, a water intake hole 1711 is provided at the water intake end of the water intake hard tube 171 to facilitate the suction of water into the water intake hard tube 171. One end of the water intake hose 172 is sleeved outside the water intake hard tube 171, the other end is connected with the water intake pump 1722 arranged above the ice layer, and the water intake pump 1722 sucks the water sample into the collecting device through the water intake hard tube 171 and the water intake hose 172. The control valve 1721 is provided on the connection line between the water intake hose 172 and the water intake pump 1722. The control valve 1721 is preferably a two-way valve to achieve bi-directional on-off. In addition, the two-way valve is arranged as a manual two-way valve or an electromagnetic two-way valve, and is specifically selected according to the actual situation on site. So set up, after collection system adjusts the position that is fit for gathering, open water intaking pump 1722 and two way valve to inhale the water sample level of every water intaking hard tube 171 place degree of depth in the water intaking hard tube 171, and further carry the water sample to water intaking hose 172 in, again via water intaking pump 1722 with different water samples carry in the different collection device.
In other embodiments (referring to fig. 1-2), the vertical end 110 and the horizontal end 120 are provided with a first harness holder 111 and a second harness holder 121, respectively, so that the water intake hose 172 is routed along the fixing device. It should be noted that, when the water intake hose 172 is routed, the water intake hard tubes 171 corresponding to the water intake hose 172 should be sequentially arranged from small to top, so that a user can determine the water sample layer directly through the water intake hose 172, and the water intake pump 1722 is turned on to draw the corresponding water intake hose 172. Or the water taking hard tube 171 with the serial number and the corresponding serial number is marked on the water outlet end of the water taking hose 172 in advance, so that when the water taking hose 172 is arranged in a wiring way, the water taking hose 172 can be bundled and fixed, and the wiring volume is reduced.
An in-situ layered acquisition method for an ice surface water body adopts an in-situ layered acquisition device for the ice surface water body, and comprises the following steps:
s1, drilling holes on ice surface, and ensuring that the diameter of the drilled holes is larger than 20cm;
S2, taking out the collecting device, and loosening the first fixing piece 160 and the third fixing piece 180 to enable the vertical end 110, the horizontal end 120 and the layering rod 170 to be in a vertical state, so that the whole collecting device is in a unfolding state;
S3, fastening the first fixing piece 160 and the third fixing piece 180 to ensure that the vertical end 110, the horizontal end 120 and the layering rod 170 do not move relative to each other any more;
s4, slowly lowering the bottom end of the layering rod 170 from the drilling hole;
s5, when the lower structure of the fixing device is completely positioned below the ice surface, slowly adjusting the horizontal end 120 to be in a horizontal state, and pushing the horizontal end 120 to be clung to the lower end surface of the ice layer to slowly move forwards until the vertical end 110 touches the ice layer;
S6, pushing the sleeve 130 downwards until the cross rod 140 is clung to the upper end face of the ice layer, and recording the scale value 112;
s7, opening the water taking pump 1722, and respectively sucking water samples with different depths into the collecting device through the flow guide piece.
When adopting concrete embodiment, operate this device according to above-mentioned method, the user alone only needs a set of device can accomplish a series of operations such as the fixed of sampling device, the normal position collection of the different water layer water samples under ice and water sample range finding, and whole device is simple portable, convenient operation, and the practicality is strong.
When the device is used for specific test, the device is used for sampling and detecting the water quality of the ice water interface in the winter ice sealing period of a certain reservoir, and the device has a good practical effect according to the detection result.
Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the foregoing embodiments may be modified or all of the features may be replaced by equivalent structures or equivalent flow paths, or be directly or indirectly applied to other related technical fields, and are equally included in the scope of the present invention.
Claims (4)
1. The device is characterized by comprising a fixing device, a distance measuring device arranged on the upper part of the fixing device and a layering device arranged on the bottom of the fixing device, wherein the distance measuring device is in sliding connection with the fixing device so as to measure the depths of different water samples in real time;
The fixing device is of an L-shaped structure and comprises a vertical end (110) arranged in the vertical direction and a horizontal end (120) hinged with the bottom end of the vertical end (110), scale values (112) are arranged on the outer side of the vertical end (110) in the vertical direction, the distance measuring device comprises a sleeve (130) sleeved on the vertical end (110) and a cross rod (140) with one end connected with the sleeve (130), the sleeve (130) slides up and down along the vertical end (110), and the cross rod (140) is arranged in parallel with the horizontal end (120);
The layering device is hinged with one end of the horizontal end (120) far away from the vertical end (110), and the vertical end (110) is hinged with the horizontal end (120);
The connecting part of the vertical end (110) and the horizontal end (120) is movably connected with a first fixing piece (160), the first fixing piece (160) is used for fixing the vertical end (110) and the horizontal end (120) after being adjusted to a preset position, the first fixing piece (160) is a butterfly screw and a screw cap connected to the tail end of the butterfly screw, and the butterfly screw can be directly manually screwed or unscrewed by adopting the combination of the butterfly screw and the screw cap, so that the structure is simple and the operation of a user is convenient;
The layering device comprises a layering rod (170) and a plurality of mounting holes (173) arranged on the periphery side of the layering rod (170) along the vertical direction;
The plurality of flow guiding pieces comprise water taking hard pipes (171) which are respectively and correspondingly accommodated in the plurality of mounting holes (173), and water taking hoses (172) which are respectively and correspondingly connected with one ends of the plurality of water taking hard pipes (171) close to the vertical ends (110), wherein the outer diameters of the water taking hard pipes (171) are the same as the diameters of the mounting holes (173), both ends of the water taking hard pipes (171) penetrate through the mounting holes (173), water taking holes (1711) are formed in the water inlet ends of the water taking hard pipes (171), one ends of the water taking hoses (172) are sleeved on the outer sides of the water taking hard pipes (171), and the other ends of the water taking hoses are connected with water taking pumps (1722) which are arranged above ice layers;
A control valve (1721) is arranged on a connecting pipeline of the water taking hose (172) and the water taking pump (1722), and a first wire harness fixer (111) and a second wire harness fixer (121) are respectively arranged on the vertical end (110) and the horizontal end (120) so that the water taking hose (172) runs along the fixing device;
The acquisition method of the in-situ layered acquisition device for the water body on the surface layer under the ice comprises the following steps:
s1, drilling holes on ice surface, and ensuring that the diameter of the drilled holes is larger than 20cm;
s2, taking out the collecting device, and loosening the first fixing piece (160) and the third fixing piece (180) to enable the vertical end (110), the horizontal end (120) and the layering rod (170) to be in a vertical state, so that the whole collecting device is in an unfolding state;
S3, fastening the first fixing piece (160) and the third fixing piece (180) to ensure that the vertical end (110), the horizontal end (120) and the layering rod (170) do not move relative to each other any more;
S4, slowly lowering the bottom end of the layering rod (170) from the drilling hole;
S5, when the lower structure of the fixing device is completely positioned below the ice surface, slowly adjusting the horizontal end (120) to be in a horizontal state, and pushing the horizontal end (120) to be clung to the lower end surface of the ice layer to slowly move forwards until the vertical end (110) is clung to the ice layer;
s6, pushing the sleeve (130) downwards until the cross rod (140) is tightly attached to the upper end face of the ice layer, and recording a scale value (112) at the position;
S7, opening a water taking pump (1722), and respectively sucking water samples with different depths into the collecting device through the flow guide piece.
2. The device for in-situ layered collection of subsurface water according to claim 1, wherein a second fixing member (150) is movably connected to the connection between the cross bar (140) and the sleeve (130).
3. The device for in-situ layered collection of the subsurface water body according to claim 1, wherein the layered rod (170) is arranged along the vertical direction, and a third fixing piece (180) is movably connected to the joint of the layered rod (170) and the horizontal end (120).
4. The device for in-situ layered collection of the subsurface water body according to claim 3, wherein the plurality of mounting holes (173) are distributed at equal intervals, the axes of the mounting holes are parallel to a horizontal line, and the diameters of the plurality of mounting holes (173) are 5-8mm.
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| CN116296594A (en) * | 2023-03-24 | 2023-06-23 | 大连理工大学 | Device for stratified sampling of water under ice surface and application method thereof |
| CN116642732B (en) * | 2023-05-31 | 2026-01-30 | 大连理工大学 | A dynamically adjustable subglacial stratified water sampler and its usage method |
| CN121253231A (en) * | 2025-12-02 | 2026-01-02 | 长江水利委员会水文局 | In-situ stratified collection and monitoring equipment and methods for micro-disturbance subglacial surface water |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101694402A (en) * | 2009-10-16 | 2010-04-14 | 中国科学院南海海洋研究所 | Under-ice measuring device |
| CN207214934U (en) * | 2017-09-11 | 2018-04-10 | 王维志 | A kind of river measuring of ice thickness chi |
| CN210626132U (en) * | 2019-09-30 | 2020-05-26 | 徐立芹 | Portable water quality sampler |
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| CN111122255B (en) * | 2020-01-09 | 2021-08-06 | 大连理工大学 | A stratified water sample collector under ice |
| CN111458190A (en) * | 2020-05-16 | 2020-07-28 | 郑丛 | Water sampling device under pond ice |
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| CN207214934U (en) * | 2017-09-11 | 2018-04-10 | 王维志 | A kind of river measuring of ice thickness chi |
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