CN206348178U - A kind of groundwater sampling device of lightweight nonaqueous phase liquid contaminated site - Google Patents
A kind of groundwater sampling device of lightweight nonaqueous phase liquid contaminated site Download PDFInfo
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- CN206348178U CN206348178U CN201720033278.8U CN201720033278U CN206348178U CN 206348178 U CN206348178 U CN 206348178U CN 201720033278 U CN201720033278 U CN 201720033278U CN 206348178 U CN206348178 U CN 206348178U
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Abstract
The utility model is related to a kind of groundwater sampling device of lightweight nonaqueous phase liquid contaminated site, including sampling pipe, peristaltic pump and sampling bottle, and the upper end of sampling pipe is connected with the import of peristaltic pump, and the outlet of peristaltic pump is in sampling bottle;The lower end of sampling pipe is water inlet and is provided with block, and certain gap is left between the inwall and water inlet of block;A certain amount of water is injected before sampling, in block and is refrigerated together with sampling pipe, block is plucked after water freezing, the ice cap for blocking water inlet is formed;The top of sampling pipe is provided with lead with a scale;Sampling pipe uses the segmentation structure connected with screw thread mouth connected mode.It is of the present utility model simple in construction, easy to operate, the mixed problem of upper strata lightweight nonaqueous phase liquid and underlying earth water is avoided that, underground water multiphase stratified sampling can be realized;It can neatly regulate and control the length of sampling pipe according to lightweight nonaqueous phase layer thickness and the requirement depth of sampling, realize the purpose of sampling at set depth.
Description
Technical field
The utility model is related to groundwater sampling equipment technical field in monitoring well, and in particular to a kind of lightweight nonaqueous phase liquid
The groundwater sampling device in body pollution place.
Background technology
With increasingly sharpening for China's underground water pollution, the investigation of domestic underground water pollution is more and more.Current underground water
Sampling is mainly sampled using lower pumping water in Beile's pipe sampler or inspection well, the sampling of ground water gathered mostly top layer
Water sample or mixed sample.But according to the property difference of groundwater pollutant matter, different polluters distributional difference in underground water
It is larger, it is therefore desirable to carry out specific aim sampling for pollutant characteristic.
For lightweight nonaqueous phase liquid(LNAPL)The underground water of pollution, lightweight nonaqueous phase liquid polluter can be in underground
Water level one layer of LNAPL formed above liquid level.Need identify underground water in LNAPL content, it is necessary to for LNAPL layers with
Under underground water be sampled.And the sampling of ground water that the domestic sample mode used and sampler are gathered is generally levels mixing
Liquid, so can not accurately define the real content of LNAPL in underground water.Therefore need to design a kind of sample mode, disclosure satisfy that
Avoided during groundwater sampling LNAPL layers of the level of ground water above be mixed into underground water caused by LNAPL contents in underground water
The problem of higher than actual value.
Utility model content
For the shortcoming or deficiency of above-mentioned prior art, the technical problems to be solved in the utility model is to provide a kind of lightweight
The groundwater sampling device of nonaqueous phase liquid contaminated site, the groundwater sampling apparatus structure is simple and convenient to operate, and is avoided that
The mixed problem of upper strata lightweight nonaqueous phase liquid and underlying earth water.
In order to solve the above technical problems, the utility model has following composition:
A kind of groundwater sampling device of lightweight nonaqueous phase liquid contaminated site, the groundwater sampling device includes sampling
Pipe, peristaltic pump and sampling bottle, the upper end of the sampling pipe are connected with the import of peristaltic pump, the outlet of the peristaltic pump in
Sampling bottle;The lower end of the sampling pipe is water inlet and is provided with block, is left between the inwall and water inlet of block certain
Gap;A certain amount of water is injected before sampling, in block and is refrigerated together with sampling pipe, block is plucked after water freezing, closure is formed
Live in the ice cap at the mouth of a river.
The top of the sampling pipe is provided with lead with a scale.
The sampling pipe is segmentation structure, the epimere pipe connect by being sequentially connected, at least one stage casing pipe and hypomere pipe structure
Into.
Between the epimere pipe and stage casing pipe, stage casing pipe stage casing pipe between and stage casing pipe hypomere pipe between, with
Screw thread mouth connected mode is connected.
Between the upper end of the epimere pipe and the import of peristaltic pump, it is connected by water conduction hose.
The upper end of the epimere pipe is hose connection.
Between the import of the peristaltic pump and sampling bottle, it is connected by water conduction hose.
Compared with prior art, the utility model has the following advantages that:
(1)Sampling pipe lower end uses block injection distilled water to be frozen to form the design of ice cap in water inlet,
Upper strata lightweight nonaqueous phase will not be mixed into during collection sampling of ground water in the sampling of ground water collected, underground water multiphase can be realized
Stratified sampling.
(2)The combining structure being connected between each section of sampling pipe using spiral mouth, can be according to the thickness of lightweight nonaqueous phase layer
Degree and the requirement depth of sampling, neatly regulate and control the length of sampling pipe, realize the purpose of sampling at set depth.
(3)It is simple in construction, it is easy to operate.
Brief description of the drawings
Fig. 1:The structural representation of the utility model underground water layered sampling device.
Fig. 2:The decomposition scheme of installation of sampling pipe in the utility model.
Embodiment
The technique effect of design of the present utility model, concrete structure and generation is made furtherly below with reference to accompanying drawing
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
As shown in figure 1, a kind of groundwater sampling device of lightweight nonaqueous phase contaminated site, including sampling pipe 10, peristaltic pump
20 and sampling bottle 30;The upper end of sampling pipe 10 is connected by water conduction hose 41 with the import of peristaltic pump 20, and peristaltic pump 20 goes out
Mouth is communicated in sampling bottle 30 by water conduction hose 42.
Sampling pipe 10 is segmentation structure, the epimere pipe 11 connect by being sequentially connected, at least one stage casing pipe 12 and hypomere pipe
13 are constituted, and the lead 50 of scale is provided with epimere pipe 11.Sampling pipe 10 uses segmentation structure, can be non-aqueous according to lightweight
The thickness of phase layer, the quantity of stage casing pipe 12 needed for selection, it is ensured that the total length of sampling pipe 10 is more than lightweight nonaqueous phase layer A thickness
Degree so that when the water inlet 142 of sampling pipe 10 is transferred to underground water target depth, the upper end of sampling pipe 10 is higher than lightweight nonaqueous phase
Layer A upper liquid level.In another specific embodiment, sampling pipe 10 can also be managed using whole of different length specifications a series of.
Between epimere pipe 11 and stage casing pipe 12, between stage casing pipe 12 and stage casing pipe 12 and stage casing pipe 12 and hypomere pipe 13
Between, it is connected with screw thread mouth connected mode, adds the flexibility of sampling pipe length adjustment;Specially:Epimere pipe 11
Lower end is external screw thread mouthful, and the upper end of stage casing pipe 12 is that inner thread mouth, lower end are external screw thread mouthful, and the upper end of hypomere pipe 13 is internal thread
Mouthful.
The upper end of epimere pipe 11 is hose connection 141, for connecting water conduction hose 41;The lower end of hypomere pipe 13 is water inlet
142, and block 143 is installed, leave certain gap between the inwall and water inlet 142 of block 143.
Carry out before groundwater sampling, first a certain amount of distilled water is injected into block 143 and is installed under hypomere pipe 13
End so that the distilled water in block 143 did not had water inlet 142;Block 142 is placed in less than 0 DEG C cold together with hypomere pipe 13 again
Block 143 is plucked after hiding indoor refrigeration, water freezing, the lower end of hypomere pipe 13 then forms the ice cap 144 for blocking water inlet 142;
Hypomere pipe 13 is assembled with stage casing pipe 12, epimere pipe 11, water conduction hose 41 successively again.
The sampling pipe 10 assembled is transferred into monitoring well by lead 50 with a scale, the sampling with ice cap 144
Water inlet tube mouthful 142 reaches the sampled targets depth below groundwater level, and the upper end of sampling pipe 10 through lightweight nonaqueous phase layer A
More than lightweight nonaqueous phase layer A upper liquid level.Sampling pipe lower end water inlet 142 of the sampling with ice cap 144 is designed, in decentralization
Into monitoring well during the target depth of underground water, it can avoid sampling pipe 10 that lightweight nonaqueous phase layer A liquid in upper strata is brought to lower floor
In underground water so that lightweight nonaqueous phase is mixed with underground water.
Sampling pipe 10 stands a few minutes after placing, and after treating that the ice cap 144 at water inlet 142 melts, starts ground
Peristaltic pump 20 start sampling;Or, sampling pipe 10 was transferred to target depth a few minutes, is started peristaltic pump 20 and is tried
Take out.After ice cap 144 melts, sampling of ground water is pumped to earth's surface by the peristaltic pump 20 under working condition, and passes through water conduction hose 32
Underground water is delivered in sampling bottle 30 and is collected bottling.
According to the teaching of the present embodiment, other the utility model protection models can be achieved in those skilled in the art completely
Enclose interior technical scheme.
Claims (7)
1. a kind of groundwater sampling device of lightweight nonaqueous phase liquid contaminated site, it is characterised in that:The groundwater sampling device
Including sampling pipe(10), peristaltic pump(20)And sampling bottle(30), the sampling pipe(10)Upper end and peristaltic pump(20)Import
It is connected, the peristaltic pump(20)Outlet in sampling bottle(30);
The sampling pipe(10)Lower end water inlet and to be provided with block, left between the inwall and water inlet of block certain
Gap;A certain amount of water is injected before sampling, in block and is refrigerated together with sampling pipe, block is plucked after water freezing, envelope is formed
Block the ice cap of water inlet.
2. groundwater sampling device according to claim 1, it is characterised in that:The sampling pipe(10)Top be provided with band
The lead of scale(50).
3. groundwater sampling device according to claim 1 or 2, it is characterised in that:The sampling pipe(10)For segmented
Structure, the epimere pipe connect by being sequentially connected(11), at least one stage casing pipe(12)With hypomere pipe(13)Constitute.
4. groundwater sampling device according to claim 3, it is characterised in that:The epimere pipe(11)Managed with stage casing(12)
Between, stage casing pipe(12)Managed with stage casing(12)Between and stage casing pipe(12)With hypomere pipe(13)Between, connected with screw thread mouth
Mode is connected.
5. groundwater sampling device according to claim 3, it is characterised in that:The epimere pipe(11)Upper end and wriggling
Pump(20)Import between, be connected by water conduction hose.
6. groundwater sampling device according to claim 5, it is characterised in that:The epimere pipe(11)Upper end be flexible pipe
Interface(141).
7. groundwater sampling device according to claim 1, it is characterised in that:The peristaltic pump(20)Import and sampling
Bottle(30)Between, it is connected by water conduction hose.
Priority Applications (1)
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CN201720033278.8U CN206348178U (en) | 2017-01-12 | 2017-01-12 | A kind of groundwater sampling device of lightweight nonaqueous phase liquid contaminated site |
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CN201720033278.8U CN206348178U (en) | 2017-01-12 | 2017-01-12 | A kind of groundwater sampling device of lightweight nonaqueous phase liquid contaminated site |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110255638A (en) * | 2019-07-25 | 2019-09-20 | 中冶南方都市环保工程技术股份有限公司 | A kind of polluted underground water containing nonaqueous phase liquid original position pump-and-treat system system and method |
CN111257049A (en) * | 2020-02-14 | 2020-06-09 | 中海石油(中国)有限公司 | Sampling device and sampling method for heterogeneous system |
CN115684527A (en) * | 2022-10-27 | 2023-02-03 | 山东冽泉环保工程咨询有限公司 | Method for monitoring non-aqueous phase liquid |
-
2017
- 2017-01-12 CN CN201720033278.8U patent/CN206348178U/en active Active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110255638A (en) * | 2019-07-25 | 2019-09-20 | 中冶南方都市环保工程技术股份有限公司 | A kind of polluted underground water containing nonaqueous phase liquid original position pump-and-treat system system and method |
CN111257049A (en) * | 2020-02-14 | 2020-06-09 | 中海石油(中国)有限公司 | Sampling device and sampling method for heterogeneous system |
CN115684527A (en) * | 2022-10-27 | 2023-02-03 | 山东冽泉环保工程咨询有限公司 | Method for monitoring non-aqueous phase liquid |
CN115684527B (en) * | 2022-10-27 | 2024-01-02 | 山东冽泉环保工程咨询有限公司 | Monitoring method of non-aqueous phase liquid |
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