CN102252866B - Use method of sampling case for preserving sediment sample - Google Patents
Use method of sampling case for preserving sediment sample Download PDFInfo
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- CN102252866B CN102252866B CN 201110179052 CN201110179052A CN102252866B CN 102252866 B CN102252866 B CN 102252866B CN 201110179052 CN201110179052 CN 201110179052 CN 201110179052 A CN201110179052 A CN 201110179052A CN 102252866 B CN102252866 B CN 102252866B
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Abstract
The invention discloses a sampling case for preserving a sediment sample and an application method thereof; The sampling case of the invention comprises a case body with a case cover (1), a porous clapboard (6), an air inlet (8), and an air outlet (3); the case body is divided into an upper chamber and a lower chamber by the porous clapboard (6), wherein the upper one is a sample chamber, and the lower one is an ice chamber; ice blocks are put in the ice chamber; the air inlet (8) and the air outlet (3) are disposed on the wall of the case body; the invention also comprises cylindrical sample preserving boxes (10) and a cylindrical sample clapboard (9) for fixing the cylindrical sample preserving boxes (10) in the case body; the cylindrical sample clapboard (9) is a porous board; the cylindrical sample preserving boxes (10) are disposed in the pores; with the sediment on-site original preserving case, sediment samples can be furthest preserved originally under a complicated capricious field condition. The sampling case of the invention has simple operation, is convenient for carrying, and has low cost.
Description
Technical field
The invention belongs to environmental monitoring Sampling techniques field, particularly a kind of special-purpose sampling box of can former state preserving sediment sample.
Background technology
The field condition collected specimens is the requisite links of work such as scientific research and environmental management, geologic examination.The greatest problem that field sampling runs into is the Sample storage problem: in order to obtain the real conditions of survey area, former state is preserved sample as far as possible.But this point is difficult to accomplish under the condition in fact in the open air: sample needs the regular hour from the collection site to the laboratory usually, and owing to the acute variation of condition, sample can change in transit.The preservation of sediment sample is difficulty especially: because sediment sample is under water for a long time, its top layer is in weak reducing condition, subsurface stratum and deep layer generally are in anaerobic state, collected land after, because the acute variation of external condition (becomes oxygen enrichment by anaerobism, great changes have also occured in temperature) very large variation also occured in its physicochemical property, result of study produced have a strong impact on.
There is no at present special open-air sediment sampling storage box, the main way that adopts the built-in ice cube of common sampling box in the practical operation.But in the open air, ice cube is easy to melt, and a large amount of frozen water of generation can immerse sample sack, and sample is changed; And large quantity of air (cover switch operation also can bring air into) is arranged in the case, and oxygen wherein makes anoxic sediments thing generation oxidation, causes the Eh(oxidation-reduction potential), AVS(acid volatile sulfur compounds) etc. important indicator can't measure.The problem that exists in addition is: sediment cores can't former state be preserved (in order to further investigate sediment properties, gather columnar samples and be absolutely necessary), and is difficult to transportation.
Summary of the invention
The object of the present invention is to provide a kind of preservation effect good, be convenient for carrying, the on-the-spot former state save set of sediment of simple to operate, low cost of manufacture.The deficiency that exists to solve above-mentioned existing apparatus.
A kind of sampling box of preserving sediment sample comprises casing and porous barrier 6 with case lid 1, and described porous barrier 6 is divided into up and down two chambers with casing, and the above is the sample chamber, and the below is icehouse, and described icehouse is placed with ice cube.
Also be provided with air intake opening 8 and gas outlet 3 on the described box body wall, air intake opening 8 is connected with nitrogen cylinder by pipeline, and the pipeline that connects described air intake opening 8 and gas outlet 3 is equipped with valve.
Also comprise columnar samples conserving case 10 and be used for columnar samples conserving case 10 is fixed on columnar samples dividing plate 9 in the casing, columnar samples dividing plate 9 is porous plate, and columnar samples conserving case 10 places the hole; Columnar samples conserving case 10 comprises air admission hole 12 and the venthole 13 that sample bottle 9, bottle stopper 11 and the bottle stopper of placing cylindrical sample is provided with.The sample bottle is shaped as right cylinder.
Described casing both sides are provided with drop handle, and cabinet shell is the double layer hollow plastic material.
The quantity of described porous barrier 6 is a plurality of.
The using method of described sampling box comprises following concrete steps:
(1) seal case, from air intake opening 8 toward casing in logical nitrogen 1 ~ 2 min, residual air 3 is discharged from the gas outlet in the casing;
(2) sediment sample is put rapidly into sample sack or columnar samples conserving case 10, to the air admission hole 12 logical nitrogen 15 ~ 30s of sample sack or columnar samples conserving case 10, residual gas is discharged by pipeline from venthole 13;
(3) open case lid 1, sample sack or columnar samples conserving case 10 are put to casing; Cover rapidly case lid 1, from air intake opening 8 toward casing in logical nitrogen 1 ~ 2 min.
The gas speed of nitrogen is 180 ~ 250cm in the step (1)
3/ min, the gas speed of nitrogen is 18 ~ 25cm in the step (2)
3/ min, the gas speed 180 ~ 250cm of nitrogen in the step (3)
3/ min.
The present invention compares with existing save set, has following advantage and effect: the present invention effectively former state preserves sample, guarantees as a result accurate and effective of relevant physicochemical character Data Detection; Easy and simple to handle, cheap, easy to carry.
Description of drawings
Fig. 1 preserves the special-purpose sampling box sectional view of sediment sample;
Porous barrier in Fig. 2 sampling box;
Fig. 3 sampling box vertical view;
The valve that Fig. 4 sampling box adopts;
Fig. 5 sample sack inflation schematic diagram;
Fig. 6 adopts the sampling box of double-layer clapboard;
Fig. 7 columnar samples conserving case;
Fig. 8 columnar samples is preserved box inflation schematic diagram;
Fig. 9 columnar samples partition board dedicated;
Figure 10 places the sampling box (section) behind the columnar samples dividing plate;
Figure 11 places the sampling box (overlooking) behind the columnar samples dividing plate;
Embodiment
Below in conjunction with embodiment and accompanying drawing the present invention is more specifically described, but embodiments of the present invention are not limited to this.
A kind of sampling box of preserving sediment sample as shown in Figure 1, comprise casing, porous barrier 6, air intake opening 8 and gas outlet 3 with case lid 1, porous barrier 6 is divided into up and down two chambers with casing as shown in Figure 2, the above is the sample chamber, the below is icehouse, described icehouse is placed with ice cube, and box body wall is provided with air intake opening 8 and gas outlet 3.
The pipeline that connects described air intake opening is provided with valve; The pipeline that connects described gas outlet is provided with valve, as shown in Figure 4.
Described casing both sides are provided with drop handle 2, and cabinet shell is the double layer hollow plastic material, are comprised of box outer wall 4 and chamber interior wall 5.
Embodiment 2
As shown in Figure 6, a kind of sampling box of preserving sediment sample, comprise casing, porous barrier 6, air intake opening 8 and gas outlet 3 with case lid 1, porous barrier 6 is divided into up and down two chambers with casing as shown in Figure 2, the above is the sample chamber, the below is icehouse, and described icehouse is placed with ice cube, and box body wall is provided with air intake opening 8 and gas outlet 3.Also comprise columnar samples conserving case 10 and be used for columnar samples conserving case 10 is fixed on columnar samples dividing plate 9 in the casing, columnar samples dividing plate 9 is porous plate, and columnar samples conserving case 10 places the hole; As shown in Figure 7, columnar samples conserving case 10 comprises air admission hole 12 and the venthole 13 that sample bottle 9, bottle stopper 11 and the bottle stopper of placing cylindrical sample is provided with.
Open case lid, ice cube is placed the chest bottom, porous barrier is placed on the ice cube.Cover chest, the valve (Fig. 4) of opening draft tube and escape pipe with portable nitrogen cylinder (2.5 liters) from air intake opening 8 toward case in logical nitrogen 2min, gas speed 250cm
3/ min closes gas admittance valve and air outlet valve.The columnar deposition matter sample is put into rapidly in the sample bottle of columnar samples conserving case 10, such as Fig. 7, covered bottle stopper, to air admission hole 12 inflated with nitrogen 30s, gas speed 25cm
3/ min, such as Fig. 8, residual gas is discharged by pipeline from venthole 13.Open case lid, columnar samples conserving case 10 is put to the porous dividing plate; Add columnar samples dividing plate 9(such as Fig. 9), columnar samples conserving case 10 is fixed in the casing, to avoid box collision and upset, former state is preserved columnar samples to greatest extent, such as Figure 11.Cover rapidly the logical nitrogen 1min of case lid, gas speed 250cm
3/ min.
Claims (2)
1. using method of preserving the sampling box of sediment sample, it is characterized in that, described sampling box comprises with the casing of case lid (1) and porous barrier (6), described porous barrier (6) is divided into up and down two chambers with casing, the above is the sample chamber, the below is icehouse, and described icehouse is placed with ice cube; Also be provided with air intake opening (8) and gas outlet (3) on the described box body wall, air intake opening (8) is connected with nitrogen cylinder by pipeline, and the pipeline that connects described air intake opening (8) and gas outlet (3) is equipped with valve; Described sampling box also comprises columnar samples conserving case (10) and for the columnar samples dividing plate (9) that columnar samples conserving case (10) is fixed in the casing, columnar samples dividing plate (9) is porous plate, and columnar samples conserving case (10) places the hole; Columnar samples conserving case (10) comprises air admission hole (12) and the venthole (13) that sample bottle (9), bottle stopper (11) and the bottle stopper of placing cylindrical sample is provided with; Described using method comprises following concrete steps:
(1) seal case, interior logical nitrogen 1 ~ 2 min from air intake opening (8) toward casing, residual air (3) discharge from the gas outlet in the casing;
(2) sediment sample is put rapidly into columnar samples conserving case (10), to the logical nitrogen 15 ~ 30s of air admission hole (12) of columnar samples conserving case (10), residual gas is discharged by pipeline from venthole (13);
(3) open case lid (1), columnar samples conserving case (10) is put to casing; Cover rapidly case lid (1), interior logical nitrogen 1 ~ 2 min from air intake opening (8) toward casing.
2. using method according to claim 1, it is characterized in that, the gas speed of nitrogen is 180 ~ 250cm3/min described in the step (1), and the gas speed of nitrogen is 18 ~ 25cm3/min described in the step (2), the gas speed 180 ~ 250cm3/min of nitrogen described in the step (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110179052 CN102252866B (en) | 2011-06-29 | 2011-06-29 | Use method of sampling case for preserving sediment sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110179052 CN102252866B (en) | 2011-06-29 | 2011-06-29 | Use method of sampling case for preserving sediment sample |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102252866A CN102252866A (en) | 2011-11-23 |
| CN102252866B true CN102252866B (en) | 2013-04-10 |
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| CN 201110179052 Active CN102252866B (en) | 2011-06-29 | 2011-06-29 | Use method of sampling case for preserving sediment sample |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104309936A (en) * | 2014-11-14 | 2015-01-28 | 山东省农业科学院农业质量标准与检测技术研究所 | Special sample box for food safety inspection |
| CN111220408B (en) * | 2018-11-27 | 2022-04-12 | 天津大学 | Rainwater pipeline sediment undisturbed sampler and sampling method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1681178A1 (en) * | 1989-09-13 | 1991-09-30 | Тбилисское Отделение Всесоюзного Проектно-Изыскательского И Научно-Исследовательского Института "Гидропроект" Им.С.Я.Жука | Device for sampling ice, water and bottom sediments |
| CN201104884Y (en) * | 2007-09-27 | 2008-08-27 | 李成朝 | Field vaccines exemplar sample-taking box |
| CN202149852U (en) * | 2011-06-29 | 2012-02-22 | 华南理工大学 | Sampling box for storing sediment sample |
-
2011
- 2011-06-29 CN CN 201110179052 patent/CN102252866B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1681178A1 (en) * | 1989-09-13 | 1991-09-30 | Тбилисское Отделение Всесоюзного Проектно-Изыскательского И Научно-Исследовательского Института "Гидропроект" Им.С.Я.Жука | Device for sampling ice, water and bottom sediments |
| CN201104884Y (en) * | 2007-09-27 | 2008-08-27 | 李成朝 | Field vaccines exemplar sample-taking box |
| CN202149852U (en) * | 2011-06-29 | 2012-02-22 | 华南理工大学 | Sampling box for storing sediment sample |
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| CN102252866A (en) | 2011-11-23 |
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Effective date of registration: 20170609 Address after: Nansha District Fengze road Guangzhou city Guangdong province 511458 No. 106 Patentee after: Guangdong clean water environment Technology Co Ltd Address before: 510640 Tianhe District, Guangdong, No. five road, No. 381, Patentee before: South China University of Technology |
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