CN111207954B - Combined in-situ soil liquid phase and gas phase material collector - Google Patents
Combined in-situ soil liquid phase and gas phase material collector Download PDFInfo
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- CN111207954B CN111207954B CN202010189444.XA CN202010189444A CN111207954B CN 111207954 B CN111207954 B CN 111207954B CN 202010189444 A CN202010189444 A CN 202010189444A CN 111207954 B CN111207954 B CN 111207954B
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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
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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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
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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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
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2294—Sampling soil gases or the like
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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
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
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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
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
- G01N2001/1418—Depression, aspiration
- G01N2001/1427—Positive displacement, piston, peristaltic
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- General Health & Medical Sciences (AREA)
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- Molecular Biology (AREA)
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- Soil Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a combined in-situ soil liquid phase and gas phase material collector, which comprises a drilling shell, an embedded liner and at least one sampling conduit, wherein the drilling shell is provided with a sampling pipe; a plurality of sampling holes are formed in the circumferential wall of the drilling shell; the embedded inner container can be inserted into the drilling shell, a plurality of different sampling channels are arranged in the embedded inner container along the length direction, the upper port of each sampling channel extends to the upper end face of the embedded inner container, and the lower port of each sampling channel extends to different horizontal positions of the circumferential outer wall of the embedded inner container and is aligned with the corresponding sampling hole; the sampling ports of the sampling conduit extend along different sampling channels to different sampling bores. The invention has novel structure, is convenient to operate and carry, can realize the work of simultaneously and continuously collecting the multi-level samples of the soil body holes only by drilling the same soil body hole for the sampling point, greatly improves the accuracy of sampling data, reduces the equipment cost in the work and causes the minimum damage to the soil of the sample land.
Description
Technical Field
The invention relates to the field of soil sample sampling, in particular to a combined in-situ soil liquid phase and gas phase material collector.
Background
In the working process related to soil sampling, if the actual situation closest to the characteristics of the sample plot is to be known, the liquid and gas phase properties of the soil with different depths are required to be known aiming at the same sampling point, and a plurality of soil holes are required to be drilled with different sampling depths by the traditional method, so that in-situ soil is liable to be damaged greatly, the sampling data do not come from the same soil hole, the accuracy of the data is affected, and a plurality of acquisition devices are required to be consumed. According to the invention, only one sampling device is placed through the same sampling point, the number of the sampling devices is reduced in multiple while the purpose of sampling is achieved, the sampling depth can be changed according to actual requirements, the flexibility and the efficiency of sample collection are greatly improved, and the collection cost is reduced.
Disclosure of Invention
The invention aims to provide a combined in-situ soil liquid phase and gas phase material collector, which solves the problems that soil holes with different depths need to be drilled at different places when the existing sampling equipment is used for sampling, so that in-situ soil is liable to be greatly damaged, sampling data do not come from the same soil hole, and the accuracy of the data is affected.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention discloses a combined in-situ soil liquid phase and gas phase material collector, which is characterized by comprising the following components:
the drilling shell is provided with an opening at the upper end and a taper at the lower end, and a plurality of sampling holes are arranged on the circumferential wall of the drilling shell;
the embedded inner container can be inserted into the drilling shell, a plurality of different sampling channels are arranged in the embedded inner container along the length direction, the upper port of each sampling channel extends to the upper end face of the embedded inner container, and the lower port of each sampling channel extends to different horizontal positions of the circumferential outer wall of the embedded inner container and is aligned with the corresponding sampling hole;
and the sampling port of the sampling conduit extends to different sampling holes along different sampling channels to sample liquid phases and gas phases at different height positions in the soil sample holes.
Further, a sampling port of the sampling conduit is provided with a ceramic sampling head for filtering.
Furthermore, the ceramic sampling head comprises a tip sampling part and a cylindrical connecting part, the sampling port of the sampling catheter is sleeved on the cylindrical connecting part, and a plurality of anti-falling rings are arranged on the circumferential wall of the cylindrical connecting part.
Further, the upper end face of the cylindrical connecting portion is provided with a groove, the bottom face of the groove is tapered, and the bottom face of the groove extends to the tip sampling portion.
Further, the magnetic flexible piston column is matched with the inner diameter of the sampling channel and sleeved on the sampling catheter, the magnetic flexible piston column comprises a plurality of magnetic piston monomers which are sequentially connected end to end through magnetic force, and the middle part of each magnetic piston monomer is provided with an avoidance hole which is in penetrating fit with the sampling catheter;
the size of the tip sampling part is larger than that of the avoidance hole.
Further, the upper end face of each magnetic piston monomer is provided with a conical groove, the lower end face is provided with a conical protrusion, and the conical protrusions are embedded into the conical grooves adjacent to the lower part.
Further, the upper end face of each magnetic piston monomer is provided with a hemispherical groove, the lower end face is provided with a hemispherical protrusion, and the hemispherical protrusion is embedded into the hemispherical groove adjacent to the lower part.
Further, the drilling shell is made of high-hardness steel pipes, and a handle is arranged at the upper part of the drilling shell.
Furthermore, the upper end surfaces of the drilling shell and the embedded liner are provided with marks which are mutually aligned.
Further, the outer wall of the upper part of the embedded inner container is provided with anti-skid thread knurling.
Compared with the prior art, the invention has the beneficial technical effects that:
the drilling shell is made of stainless steel, has high hardness, can replace the action of an earth drill in a sample site with loose earth, and can be provided with sampling holes with corresponding depths on the outer wall according to the actual working requirements, so that samples with different depths can be conveniently collected; the embedded liner is made of hard polymer materials, so that more weight can be reduced in the carrying process, and the embedded liner is convenient to install; the magnetic flexible piston column adopts single distributed magnetic connection, namely certain flexibility is ensured, free movement in the sampling channel is facilitated, when the sampling depth is deeper, the sampling guide tube can be assisted to walk in the sampling channel, and the ceramic sampling head is propped against the sampling soil; in a word, the invention has novel structure, is convenient to operate and carry, can realize the work of simultaneously and continuously collecting the multi-level samples of the soil body holes only by drilling the same soil body hole for the sampling point, greatly improves the accuracy of sampling data, reduces the equipment cost in the work and causes the minimum damage to the soil of the sample field.
Drawings
The invention is further described with reference to the following description of the drawings.
FIG. 1 is a schematic diagram of a combined in situ soil liquid phase and vapor phase material collector of the present invention;
FIG. 2 is a schematic view of the structure of the embedded liner of the present invention;
FIG. 3 is a schematic diagram of a ceramic sampling head according to the present invention;
FIG. 4 is a cross-sectional view of a ceramic sampling head of the present invention;
FIG. 5 is a schematic diagram of a magnetic piston unit according to an embodiment of the invention;
FIG. 6 is a cross-sectional view of a magnetic piston unit in accordance with a first embodiment of the present invention;
FIG. 7 is a schematic diagram showing the connection structure of the sample tube, ceramic sample head and magnetic piston unit according to the first embodiment of the present invention;
FIG. 8 is a schematic diagram of a magnetic piston unit in a second embodiment of the present invention;
fig. 9 is a cross-sectional view of a magnetic piston unit in accordance with a second embodiment of the present invention.
Reference numerals illustrate: 1. drilling the shell; 101. a sampling hole; 102. a handle; 2. embedding the inner container; 201. a sampling channel; 3. a sampling catheter; 4. a ceramic sampling head; 401. a conical sampling part; 402. a cylindrical connecting portion; 402-1, grooves; 403. anti-slip ring; 5. a magnetic flexible piston column; 501. a magnetic piston monomer; 501-1, a conical groove; 501-2, conical projections; 501-3, hemispherical recesses; 501-4, hemispherical protrusions; 502. avoidance holes; 6. identification; 7. and (5) knurling anti-skid threads.
Detailed Description
In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
Example 1
As shown in fig. 1, the embodiment discloses a combined in-situ soil liquid phase and gas phase material collector, which comprises a drilling shell 1, an embedded liner 2 and at least one sampling conduit 3. The drilling housing 1 is made of high-hardness steel pipes, a handle 102 is welded to the upper portion of the drilling housing 1, and the handle 102 is used for operating the drilling housing 1 to insert soil samples into the soil samples to drill soil sample holes. In order to facilitate the insertion of the drilling housing 1 into the soil sample, the lower end of the drilling housing 1 is tapered. A plurality of sampling holes 101 are provided in the circumferential wall of the drill housing 1.
As shown in fig. 1 and 2, the upper end of the drilling shell 1 is opened, the embedded liner 2 can be inserted into the drilling shell 1 from the opening, the embedded liner 2 is made of hard polymer materials, a plurality of different sampling channels 201 are arranged in the embedded liner 2 along the length direction, the upper port of each sampling channel 201 extends to the upper end face of the embedded liner 2, the lower port of each sampling channel 201 extends to different horizontal positions of the circumferential outer wall of the embedded liner 2 and is aligned with the corresponding sampling hole 101, and the size of the sampling hole 101 is larger than that of the lower port of the sampling channel 201.
The sampling ports of the sampling pipes 3 extend to different sampling holes 101 along different sampling channels 201 to sample the liquid phase and the gas phase at different height positions in the soil sample holes, and it should be noted that only one sampling pipe 3 is provided in this embodiment, and except for this embodiment, a plurality of sampling pipes 3 may be used to respectively penetrate into different sampling channels 201 to sample simultaneously. During sampling, the sampling conduit 3 needs to be communicated with a vacuum pump, so that the sampling conduit 3 generates negative pressure suction force to extract liquid and gas phase substances from the soil sample holes.
When the drilling shell 1 is inserted into a soil sample to drill a soil sample hole, in order to prevent soil in the hole from entering the sampling channel 201 through the sampling hole 101, before drilling, the inner container 2 needs to be rotationally embedded so that the lower ports of the sampling hole 101 and the sampling channel 201 are staggered, after the hole is drilled, the inner container 2 only needs to be rotationally embedded so that the sampling hole 101 is aligned with the sampling channel 201, and in order to facilitate alignment of the sampling hole 101 and the sampling channel 201, mutually aligned marks 6 are arranged on the upper end surfaces of the drilling shell 1 and the embedded inner container 2. In order to facilitate the rotation of the embedded liner 2, an anti-skid thread knurl 7 is arranged on the outer wall of the upper part of the embedded liner 2.
In order to reduce the workload of separating soil sample impurities by later workers, the impurities in the soil sample are filtered from the source when the sampling conduit 3 is used for sampling, and therefore, the ceramic sampling head 4 for filtering is arranged at the sampling port of the sampling conduit 3, the ceramic sampling head 4 is made of pottery clay and has water and air permeability, and the ceramic sampling head 4 only blocks the impurities and does not block liquid and gas phase in the soil sample.
As shown in fig. 3 and 4, the ceramic sampling head 4 includes a tip sampling portion 401 and a cylindrical connecting portion 402, a sampling port of the sampling tube 3 is sleeved on the cylindrical connecting portion 402, and a plurality of anti-slip rings 403 are provided on the circumferential wall of the cylindrical connecting portion 402.
In order to accelerate the infiltration of liquid and gas phases in the soil sample into the sampling pipe 3 through the ceramic sampling head 4, a groove 402-1 is provided at the upper end surface of the cylindrical connecting portion 402, the bottom surface of the groove 402-1 is tapered, and the bottom surface of the groove 402-1 extends to the tip sampling portion 401. The design of the grooves 402-1 reduces the wall thickness of the ceramic sampling head 4 so that the liquid and gas phases in the soil sample quickly pass through the filtration of the ceramic sampling head 4 and into the sampling conduit 3.
During sampling, the ceramic sampling head 4 is propped in the sampling soil through the sampling hole 101 by the sampling guide pipe 3, and the sampling guide pipe 3 is a flexible pipe, so that sampling personnel are inconvenient to operate during sampling operation, the magnetic flexible piston column 5 is also designed, the magnetic flexible piston column 5 is matched with the inner diameter of the sampling channel 201 and sleeved on the sampling guide pipe 3, the magnetic flexible piston column 5 comprises a plurality of magnetic piston monomers 501 which are sequentially connected end to end through magnetic force, and the middle part of each magnetic piston monomer 501 is provided with an avoidance hole 502 which penetrates through the sampling guide pipe 3. The size of the tip sampling portion 401 is larger than the relief hole 502.
As shown in fig. 5, 6 and 7, in order to make the magnetically flexible piston rod 5 flexible and pass through the sampling channel 201 quickly, in this embodiment, an upper end surface of each magnetically flexible piston unit 501 is provided with a tapered groove 501-1, a lower end surface is provided with a tapered protrusion 501-2, and the tapered protrusion 501-2 is embedded in the tapered groove 501-1 adjacent below.
Example two
As shown in fig. 1, this embodiment discloses a combined in-situ soil liquid phase and gas phase material collector, which comprises a drilling shell 1, an embedded liner 2 and a sampling conduit 3. The drilling housing 1 is made of high-hardness steel pipes, a handle 102 is welded to the upper portion of the drilling housing 1, and the handle 102 is used for operating the drilling housing 1 to insert soil samples into the soil samples to drill soil sample holes. In order to facilitate the insertion of the drilling housing 1 into the soil sample, the lower end of the drilling housing 1 is tapered. A plurality of sampling holes 101 are provided in the circumferential wall of the drill housing 1.
In this embodiment, the structures of the drilling housing 1, the embedded liner 2 and the sampling catheter 3 are identical to those of the first embodiment, and will not be described here again. As shown in fig. 8 and 9, the difference is that: the upper end surface of each magnetic piston unit 501 is provided with a hemispherical groove 501-3, the lower end surface is provided with a hemispherical protrusion 501-4, and the hemispherical protrusion 501-4 is embedded into the hemispherical groove 501-3 adjacent below.
The above embodiments are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (3)
1. A combined in situ soil liquid and gas phase material collector comprising:
the drilling shell (1), wherein an opening is formed in the upper end of the drilling shell (1), the lower end of the drilling shell is conical, and a plurality of sampling holes (101) are formed in the circumferential wall of the drilling shell (1);
the embedded liner (2) can be inserted into the drilling shell (1), a plurality of different sampling channels (201) are arranged in the embedded liner (2) along the length direction, the upper port of each sampling channel (201) extends to the upper end face of the embedded liner (2), and the lower port of each sampling channel (201) extends to different horizontal positions of the circumferential outer wall of the embedded liner (2) and is aligned with the corresponding sampling hole (101);
the upper end surfaces of the drilling shell (1) and the embedded liner (2) are provided with mutually aligned marks (6); the outer wall of the upper part of the embedded liner (2) is provided with an anti-skid thread knurl (7);
before drilling, the embedded inner container (2) is rotated to enable the sampling hole (101) and the lower port of the sampling channel (201) to be staggered, and after the hole is drilled, the embedded inner container (2) is rotated to enable the sampling hole (101) and the sampling channel (201) to be aligned;
at least one sampling conduit (3), wherein sampling ports of the sampling conduit (3) extend to different sampling holes (101) along different sampling channels (201) to sample liquid phases and gas phases at different height positions in the soil sample holes;
the sampling port of the sampling conduit (3) is provided with a ceramic sampling head (4) for filtering;
the ceramic sampling head (4) comprises a tip sampling part (401) and a cylindrical connecting part (402), a sampling port of the sampling catheter (3) is sleeved on the cylindrical connecting part (402), and a plurality of anti-falling rings (403) are arranged on the circumferential wall of the cylindrical connecting part (402);
the upper end surface of the cylindrical connecting part (402) is provided with a groove (402-1), the bottom surface of the groove (402-1) is conical, and the bottom surface of the groove (402-1) extends to the tip sampling part (401);
the magnetic flexible piston column (5) is matched with the inner diameter of the sampling channel (201) and sleeved on the sampling catheter (3), the magnetic flexible piston column (5) comprises a plurality of magnetic piston monomers (501) which are sequentially connected end to end through magnetic force, and an avoidance hole (502) which is in penetrating fit with the sampling catheter (3) is formed in the middle of each magnetic piston monomer (501);
the size of the tip sampling part (401) is larger than that of the avoidance hole (502);
the upper end face of each magnetic piston monomer (501) is provided with a conical groove (501-1), the lower end face is provided with a conical protrusion (501-2), and the conical protrusions (501-2) are embedded into the conical grooves (501-1) adjacent below.
2. The combined in situ soil liquid phase and gas phase material collector of claim 1, wherein: the upper end face of each magnetic piston single body (501) is provided with a hemispherical groove (501-3), the lower end face is provided with a hemispherical protrusion (501-4), and the hemispherical protrusion (501-4) is embedded into the hemispherical groove (501-3) adjacent below.
3. The combined in situ soil liquid phase and gas phase material collector of claim 1, wherein: the drilling shell (1) is made of high-hardness steel pipes, and a handle (102) is arranged at the upper part of the drilling shell (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010189444.XA CN111207954B (en) | 2020-03-18 | 2020-03-18 | Combined in-situ soil liquid phase and gas phase material collector |
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| CN202010189444.XA CN111207954B (en) | 2020-03-18 | 2020-03-18 | Combined in-situ soil liquid phase and gas phase material collector |
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| CN111207954A CN111207954A (en) | 2020-05-29 |
| CN111207954B true CN111207954B (en) | 2023-07-04 |
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| CN111766096B (en) * | 2020-06-24 | 2022-09-23 | 宁波市环境监测中心 | Sampling device for volatile organic compounds in soil and control method thereof |
| CN111751561B (en) * | 2020-07-06 | 2023-06-13 | 临武县康源山泉水实业有限公司 | Automatic water quality monitoring equipment |
| CN111751560B (en) * | 2020-07-06 | 2023-05-09 | 安徽港好江南生态环境科技有限公司 | Automatic water quality monitoring method |
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| CN208043485U (en) * | 2018-04-19 | 2018-11-02 | 南华大学 | It is a kind of multilayer to take the modular unit of liquid in saturation or unsaturated soil |
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| CN101441146A (en) * | 2008-12-31 | 2009-05-27 | 扬州大学 | Collecting device of different depth soil gas |
| CN103398875B (en) * | 2013-08-20 | 2016-06-08 | 中国海洋大学 | A kind of device measuring the distribution of ocean suspension oil spilling Petroleum Hydrocarbon concentration vertical |
| CN204085965U (en) * | 2014-07-02 | 2015-01-07 | 北京师范大学 | A kind of soil gas original-position collecting device |
| CN105784861B (en) * | 2016-03-04 | 2017-12-26 | 湖南农业大学 | A kind of soil gas collection device and gas collection method |
| CN206235497U (en) * | 2016-11-23 | 2017-06-09 | 中国地质大学（北京） | A kind of soil gas sampler and soil gas detection device |
| CN206267847U (en) * | 2016-12-20 | 2017-06-20 | 王宏志 | Agricultural land soil sampler |
| CN107084863A (en) * | 2017-05-11 | 2017-08-22 | 中国农业大学 | A kind of scale aerobic compost material internal gas collection device |
| CN206710161U (en) * | 2017-05-22 | 2017-12-05 | 哈尔滨绿柳环保科技发展有限公司 | A kind of gas sample harvester |
| CN209264719U (en) * | 2018-11-28 | 2019-08-16 | 内蒙古师范大学 | It is a kind of can stratified pumping, gas, soil sample and the controllable leaching device of water distribution |
| CN109752209A (en) * | 2018-12-30 | 2019-05-14 | 孙浩宁 | Soil sampling apptss |
| CN109991045A (en) * | 2019-03-20 | 2019-07-09 | 中国地质大学（武汉） | A kind of gas rapid sampling attachment suitable for clayed soil |
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| CN208043485U (en) * | 2018-04-19 | 2018-11-02 | 南华大学 | It is a kind of multilayer to take the modular unit of liquid in saturation or unsaturated soil |
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