CN107328612B - A sampling device for testing water chlorophyll - Google Patents
A sampling device for testing water chlorophyll Download PDFInfo
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- CN107328612B CN107328612B CN201710767512.4A CN201710767512A CN107328612B CN 107328612 B CN107328612 B CN 107328612B CN 201710767512 A CN201710767512 A CN 201710767512A CN 107328612 B CN107328612 B CN 107328612B
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- chlorophyll
- sampling
- testing
- sampling bottle
- sleeve
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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
Abstract
The invention discloses a sampling device for testing chlorophyll of a water body. A sampling device for testing water chlorophyll mainly comprises a piston rod, a piston, an air inlet cylinder, an air guide pipe, a sampling bottle, a bottom sleeve, a sand core filter plate, a filter membrane, a side opening sleeve, a side opening, a top plug and a top sleeve. Chlorophyll is easy to decompose when exposed to light, and the pretreatment steps of a water sample adopted by a traditional sampling mode in the process of testing chlorophyll in a water body are relatively complex, so that the task amount of an experiment is increased, and the possibility of decomposition of chlorophyll in light is also increased. This device is exclusively used in water chlorophyll test sample, not only can provide convenient for sample and chlorophyll test experiment, can avoid the sample to see light moreover as far as possible, can effectively reduce the experimentation error.
Description
Technical Field
The invention relates to the technical field of samplers, in particular to a sampling device for testing chlorophyll of a water body.
Background
The test of the chlorophyll in the water body is a common experiment in water quality monitoring, and the chlorophyll is easy to decompose when being exposed to light, so that light is protected as far as possible in the sampling and experiment process, and experiment errors are prevented. Therefore, a separate sampling device is preferred for water samples used for chlorophyll testing to reduce errors, however, a sampling device dedicated to chlorophyll is not common. The pretreatment steps of the water sample adopted by the traditional sampling mode in the chlorophyll testing process in the water body are relatively complex, so that the experimental task is increased, and the possibility of the decomposition of chlorophyll in light is also increased. Therefore, design a sampling device for testing water chlorophyll, be exclusively used in water chlorophyll test sample, not only can provide convenient for sample and chlorophyll test experiment, can avoid the sample to see light moreover as far as possible, can effectively reduce the experimentation error.
Disclosure of Invention
1. The purpose of the invention is as follows:
the invention provides a sampling device for testing water chlorophyll, which is convenient for water chlorophyll sampling and water chlorophyll testing experiments and can reduce errors caused by chlorophyll light decomposition in a water chlorophyll testing process.
2. The technical scheme of the invention is as follows:
in order to achieve the purpose, the invention provides a sampling device for testing chlorophyll in a water body, which mainly comprises a piston rod, a piston, an air inlet cylinder, an air guide pipe, a sampling bottle, a bottom sleeve, a sand core filter plate, a filter membrane, a side port sleeve, a side port, a top plug and a top sleeve.
It is preferable that: the piston rod is fixedly connected with the piston, and the piston can freely move back and forth in the air inlet cylinder by virtue of the piston rod.
It is preferable that: the piston is made of rubber, has the same diameter as the inner diameter of the air inlet cylinder, is in good contact with the inner wall of the air inlet cylinder, and moves back and forth in the air inlet cylinder.
It is preferable that: the air inlet cylinder is an annular thin-wall cylinder with openings at two ends, scales are arranged on the outer surface, the diameter of one end of the air inlet cylinder is slowly reduced to be the same as that of the air guide tube and is fixedly connected with the air guide tube, and the piston enters from the end with the larger diameter.
It is preferable that: the air duct is made of rubber, the surface of the air duct is marked with scales and used for measuring sampling depth, the other end of the air duct is connected with the top plug, and the length of the air duct is selected according to sampling.
It is preferable that: the sampling bottle is a thin-wall annular cylinder, the outer diameter of the sampling bottle is the same as the diameter of the filter membrane, the color of the sampling bottle is brown, threads are attached to the inner surface and the outer surface of the upper end of the thin wall, the height of the threads is the same as that of the top plug, threads are attached to the outer surface of the lower end of the thin wall, and the height of the threads is the same as that of the sand core filter.
It is preferable that: the bottom sleeve is a thin-wall annular cylinder with one end sealed, the color is dark, the inner diameter of the bottom sleeve is the same as the outer diameter of the sand core filter plate, and threads are attached to the inner surface of the thin wall.
It is preferable that: the sand core filter plate is made of sintered glass material, is a thin-wall annular cylinder with one end sealed, and has the inner diameter same as the outer diameter of the sampling bottle and the threads attached to the inner and outer surfaces of the thin wall.
It is preferable that: the filter membrane material and the pore size are selected according to the experimental requirements.
It is preferable that: the side opening sleeve is a thin-wall annular cylinder with one end sealed, the inner diameter of the thin-wall annular cylinder is the same as the outer diameter of the side opening, and threads are attached to the inner surface of the thin-wall annular cylinder.
It is preferable that: the side port is attached to the side face of the upper end of the sampling bottle and communicated with the interior of the sampling bottle, the outer surface of the side port is attached with threads, and the side port is mainly used for allowing a sample to enter during sampling and is connected with a vacuum pump during water sample treatment.
It is preferable that: the top plug is a cylinder, the diameter of the top plug is the same as the inner diameter of the sampling bottle, the outer surface of the top plug is attached with threads, and the center of the top plug is provided with a through hole fixedly connected with the air duct.
It is preferable that: the top sleeve is a thin-wall annular cylinder with one end sealed, the color is dark, the inner surface of the top sleeve is attached with threads, and the height of the top sleeve is the same as that of the top plug.
It is preferable that: the whole sealing performance is good.
Drawings
Fig. 1 is an overall view of the apparatus.
Fig. 2 is an enlarged view of the bottom plug.
Fig. 3 is a side pocket view.
Fig. 4 is a top jacket view.
Detailed Description
The present invention is further illustrated by the following specific examples.
A sampling device for testing water chlorophyll mainly comprises a piston rod (1), a piston (2), an air inlet cylinder (3), an air guide pipe (4), a sampling bottle (5), a bottom sleeve (6), a sand core filter plate (7), a filter membrane (8), a side opening sleeve (9), a side opening (10), a top plug (11) and a top sleeve (12). The piston rod (1) is fixedly connected with the piston (2), the piston (2) is in good contact with the inner wall of the air inlet cylinder (3) and moves back and forth in the air inlet cylinder (3), the air inlet cylinder (3) is connected with the top plug (11) through the air duct (4), the filter membrane (8) is tightly attached to the inner surface of the bottom end of the sand core filter plate (7), the sand core filter plate (7) is screwed at the bottom end of the sampling bottle between the sand core filter plate (7) and the bottom surface of the sampling bottle (5), the bottom sleeve (6) is screwed at the outer side of the sand core filter plate (7), the side port (10) is attached to the side surface of the upper end of the sampling bottle (5) and communicated with the inside of the sampling bottle (5), the top plug (12) is screwed at the upper end of the sampling bottle (5) during sampling, the top sleeve (12) is screwed at the upper end of the sampling bottle (5) when sampling is finished.
Before sampling, as shown in fig. 1 and 2, a top plug (11) is screwed at the upper end of a sampling bottle (5), a filter membrane (8) is tightly attached to the inner surface of the bottom end of a sand core filter plate (7), the sand core filter plate (7) is screwed at the lower end of the sampling bottle (5), a bottom sleeve (6) is screwed on the outer surface of the sand core filter plate (7), and a piston rod (1) is used for moving a piston (2) to one end, close to an air guide pipe (4), of an air inlet cylinder (3) in the air inlet cylinder (3).
During sampling, the sampling bottle (5) is placed into a water body, scale change on the air guide pipe (4) is observed, the position of the sampling bottle (5) is kept still when the sampling depth is reached, the piston (2) is drawn by the piston rod (1), scale change on the air inlet cylinder (3) is observed, the drawing of the piston (2) is stopped when the expected water sample volume is reached, and the sampling bottle (5) is lifted out of the water surface by the air guide pipe (4).
After the sampling bottle (5) is lifted out of the water surface, as shown in fig. 3 and 4, the side opening sleeve (9) is screwed on the side opening (10), the top plug (12) is taken down, and the top sleeve (12) is screwed on the upper end of the sampling bottle (5).
When a water sample is pretreated in a laboratory, the bottom sleeve (6) and the side port sleeve (9) are taken down, the side port (10) is connected with a vacuum pump, the vacuum pump is started, the water body in the sampling bottle (5) is pumped out, the sand core filter plate (7) is screwed down, and the filter membrane (8) attached with chlorophyll is taken out.
And cleaning, arranging and storing the sampling device.
Claims (7)
1. A sampling device for testing water chlorophyll mainly comprises a piston rod (1), a piston (2), an air inlet cylinder (3), an air guide pipe (4), a sampling bottle (5), a bottom sleeve (6), a sand core filter plate (7), a filter membrane (8), a side opening sleeve (9), a side opening (10), a top plug (11) and a top sleeve (12); the piston rod (1) is fixedly connected with the piston (2), the piston (2) is in good contact with the inner wall of the air inlet cylinder (3) and moves back and forth in the air inlet cylinder (3), scales are arranged on the outer surface of the air inlet cylinder (3), the air inlet cylinder (3) is connected with the top plug (11) through the air guide pipe (4), the filter membrane (8) is tightly attached to the inner surface of the bottom end of the sand core filter plate (7), the sand core filter plate (7) is screwed at the bottom end of the sampling bottle (5) between the sand core filter plate (7) and the bottom surface of the sampling bottle (5), the bottom sleeve (6) is screwed outside the sand core filter plate (7), the side port (10) is attached to the side surface of the upper end of the sampling bottle (5) and communicated with the inside of the sampling bottle (5), the top plug (11) is screwed at the upper end of the sampling bottle (5), the top sleeve (12) is screwed at the upper end of the sampling bottle (5), and the side; the air guide pipe (4) is made of rubber, and scales are marked on the surface of the air guide pipe and used for measuring the sampling depth; the color of the sampling bottle (5) is brown, the color of the bottom sleeve (6) is dark, and the color of the top sleeve (12) is dark.
2. The sampling device for testing chlorophyll in water body of claim 1, wherein the sampling bottle (5) is a thin-walled annular cylinder with an outer diameter the same as the diameter of the filter membrane (8), threads are attached to the inner and outer surfaces of the upper end of the thin wall, the height of the threads is the same as the height of the top plug (11), threads are attached to the outer surface of the lower end of the thin wall, and the height of the threads is the same as the height of the sand core filter plate (7).
3. The sampling device for testing chlorophyll of water body of claim 1, wherein the bottom cover (6) is a thin-walled annular cylinder with one end sealed, the inner diameter of the cylinder is the same as the outer diameter of the sand core filter plate (7), and threads are attached to the inner surface of the thin wall.
4. The sampling device for testing chlorophyll in water body of claim 1, wherein the sand core filter plate (7) is made of sintered glass frit, and is a thin-walled annular cylinder with one end sealed, and the inner diameter of the cylinder is the same as the outer diameter of the sampling bottle (5), and threads are attached to the inner and outer surfaces of the thin wall.
5. A sampling device for testing chlorophyll in water body according to claim 1, wherein the side port (10) is externally threaded.
6. The sampling device for testing chlorophyll in water body of claim 1, wherein the top plug (11) is a cylinder with a diameter equal to the inner diameter of the sampling bottle, and has threads attached to its outer surface, and a through hole at its center part to be fixed with the air duct (4).
7. The sampling device for testing chlorophyll of water body of claim 1, wherein the top sleeve (12) is a thin-walled annular cylinder with one end sealed, and has threads attached to its inner surface and the same height as the top plug (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710767512.4A CN107328612B (en) | 2017-08-31 | 2017-08-31 | A sampling device for testing water chlorophyll |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710767512.4A CN107328612B (en) | 2017-08-31 | 2017-08-31 | A sampling device for testing water chlorophyll |
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| Publication Number | Publication Date |
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| CN107328612A CN107328612A (en) | 2017-11-07 |
| CN107328612B true CN107328612B (en) | 2020-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710767512.4A Active CN107328612B (en) | 2017-08-31 | 2017-08-31 | A sampling device for testing water chlorophyll |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866053A (en) * | 2012-09-14 | 2013-01-09 | 济南市环境保护科学研究院 | Durable organic matter large-volume water sample separation and concentration device |
| CN106248640A (en) * | 2016-07-13 | 2016-12-21 | 安徽理工大学 | In a kind of water body, phytoplankton chlorophyll a extracts and assay method |
| CN207081582U (en) * | 2017-08-31 | 2018-03-09 | 安徽理工大学 | A kind of sampler for being used to test water body chlorophyll |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0415827D0 (en) * | 2004-07-15 | 2004-08-18 | Univ Manchester | Liquid sampling |
| CN205015189U (en) * | 2015-07-28 | 2016-02-03 | 李洪涛 | On --spot suction filter device of seawater sampling |
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2017
- 2017-08-31 CN CN201710767512.4A patent/CN107328612B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866053A (en) * | 2012-09-14 | 2013-01-09 | 济南市环境保护科学研究院 | Durable organic matter large-volume water sample separation and concentration device |
| CN106248640A (en) * | 2016-07-13 | 2016-12-21 | 安徽理工大学 | In a kind of water body, phytoplankton chlorophyll a extracts and assay method |
| CN207081582U (en) * | 2017-08-31 | 2018-03-09 | 安徽理工大学 | A kind of sampler for being used to test water body chlorophyll |
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| CN107328612A (en) | 2017-11-07 |
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