CN208270255U - A kind of differential ground water fixed depth acquisition device - Google Patents
A kind of differential ground water fixed depth acquisition device Download PDFInfo
- Publication number
- CN208270255U CN208270255U CN201820817695.6U CN201820817695U CN208270255U CN 208270255 U CN208270255 U CN 208270255U CN 201820817695 U CN201820817695 U CN 201820817695U CN 208270255 U CN208270255 U CN 208270255U
- Authority
- CN
- China
- Prior art keywords
- water inlet
- fixed depth
- acquisition device
- guide housing
- depth acquisition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a kind of differential ground water fixed depth acquisition devices.Purpose is to provide a kind of differential ground water fixed depth acquisition device, the device have the characteristics that it is compact-sized, some certain depth can be sampled and be sampled it is accurate.Technical solution is: a kind of differential ground water fixed depth acquisition device, it is characterised in that: the device includes sampler and connects the gas source of sampler by appendix；The sampler includes probe tube, and the both ends of probe tube, which are respectively equipped in upper plug head and lower end cap and probe tube, is equipped with funnel shaped guide housing；The upper plug head is equipped with snorkel, and one end of snorkel is connected to appendix and the other end is connected to the aperture of guide housing, and floating ball is additionally provided in guide housing；The lower end cap is equipped with water inlet pipe, outlet pipe, and water inlet pipe is equipped with check valve, filter and water inlet, and outlet pipe is equipped with outlet valve.
Description
Technical field
The utility model relates to a kind of differential ground water fixed depth acquisition devices, it can be achieved that the underground water of certain depth takes
Sample.
Background technique
With the fast development and industrial transformation of China's national economy, a large amount of retired industrial field has been left in city
Ground.The survey showed that, and many retired places of industry all have a degree of Organic Contamination of Groundwater.Due to exhausted big portion
Divide the solubility very little of organic matter in water, easily formation nonaqueous phase pollutant, this liquid is commonly referred to as nonaqueous phase liquid
(nonaqueous phase liquids, NAPLs).According to density size, it is representative that NAPLs, which is divided for benzene homologues, halogenated hydrocarbons,
Light non-aqueous phase liquids (light non-aqueous phase liquids, LNAPLs) and halogenated hydrocarbons, coal tar, heavy mineral
Oil etc. are the dense non-aqueous phase liquids (dense non-aqueous phase liquids, DNAPLs) of representative, to prevent and controlling
The construction place ecological accidents and construction project safety accident that soil and underground water pollution cause, need to carry out soil and underground water
The work such as environment preliminary investigation, probe and risk assessment.Sampling is the main means and important content for carrying out site investigation,
The result of sampling directly affects the objectivity and accuracy of site investigation, therefore, seems for the quality control of sampling process
It is particularly important, and the representativeness of sample just can ensure that using suitable sampling tool, so which kind of sampling tool to seem ten using
Divide important.
Nonaqueous phase liquid pollutant (NAPLs) enters in groundwater environment, it is possible in the form of 4 kinds: dissolution phase, remnants
Phase, gas phase, and free phase.After a large amount of NAPL are leaked into aquifer, the small LNAPLs pollutant of density ratio water
" floating " is easy on groundwater level, level of ground water collects around on water-bearing layer top；And relatively heavy DNAPLs pollutant
Then it is intended to downward Vertical Migration, assembles in aquifer floor elevation.In general the acquisition of the free phase of NAPLs is due to formation condition etc.
The factor of aspect is extremely difficult, therefore needs to develop a set of dedicated sample devices for the free phase of NAPLs.
Currently, groundwater sample mainly uses Beile's pipe, water pump or gas displacement type sampler to be acquired, Beile's pipe is only
Mixed sample can be acquired, DNAPLs pollution water sample existing for place can not be acquired, lower end water inlet is unfavorable for surface layer LNAPLs dirt
Contaminate the acquisition of object；And general sampling water pump is limited the shallow-layer water sample that can only be acquired no more than 10 meters of depths, and water by sampling depth
Pump cleaning is difficult, and there are different samples to be easy the drawbacks of interfering with each other；Traditional gas displacement type sampler, in sampling process
High pressure gas is easy to enter generation gas overflowing phenomenon in outlet pipe by being discharged check (non-return) valve, and the disengaging of gas can also be to water sample
It causes compared with large disturbances, operation is also inconvenient.
Utility model content
The purpose of the utility model is to overcome the deficiency in above-mentioned background technique, a kind of differential ground water fixed depth is provided and is adopted
Acquisition means, the device have the characteristics that it is compact-sized, some certain depth can be sampled and be sampled it is accurate.
The technical solution of the utility model is:
A kind of differential ground water fixed depth acquisition device, it is characterised in that: the device includes sampler and passes through gas transmission
The gas source of pipe connection sampler；The sampler includes probe tube, and the both ends of probe tube are respectively equipped with upper plug head and lower end cap simultaneously
And funnel shaped guide housing is equipped in probe tube；The upper plug head is equipped with snorkel, and one end of snorkel is connected to simultaneously with appendix
And the other end is connected to the aperture of guide housing, and floating ball is additionally provided in guide housing；The lower end cap is equipped with water inlet pipe, outlet pipe, into
Water pipe is equipped with check valve, filter and water inlet, and outlet pipe is equipped with outlet valve.
The outer diameter of the floating ball is greater than guide housing hole diameter and ventilation bore；The snorkel by connector with it is defeated
Tracheae connection.
The water inlet pipe lower end closed, water inlet are set to water inlet pipe side wall.
The upper plug head is connect by helicitic texture with probe tube with lower end cap.
Scale is provided on the appendix.
The beneficial effects of the utility model are:
Compact is easy to carry, and the sampling of NAPLs pollution water sample precisely, operates also very convenient.
Detailed description of the invention
Fig. 1 is the schematic view of the front view of the utility model.
Specific embodiment
Below in conjunction with Figure of description, the utility model is described in further detail, but the utility model be not limited to
Lower embodiment.
A kind of differential ground water fixed depth acquisition device, including gas source 1, sampler 8 and appendix 2.On the gas source
It (is omitted in figure) equipped with control valve, which is T-type three-way ball valve, for realizing the pressurization and pressure release of sampler.
The sampler includes probe tube 7.The smooth outer surface of the probe tube without corner angle and even thickness, in order to
It is sampled in the lesser deep-well of diameter.The both ends of the probe tube are respectively equipped with upper plug head 3 and lower end cap 9, go back in probe tube
Equipped with guide housing 5.The upper plug head is connect by helicitic texture with probe tube with lower end cap.The guide housing is inverted funnel
Shape (up-small and down-big), is additionally provided with floating ball 6 in guide housing, and the outer diameter of floating ball is greater than the interior of guide housing hole diameter and snorkel
Diameter.
The upper plug head is equipped with snorkel 4, and the upper end of snorkel is connected to by connector 14 with appendix, the lower end of snorkel
It is connected to the aperture of guide housing, the macropore of guide housing plug downwards.By being welded and fixed between the snorkel and guide housing.
The lower end cap is equipped with water inlet pipe 10 and outlet pipe 15, water inlet pipe be equipped with check valve 11, filter 12 and into
The mouth of a river 13, the filter can enter sampler to avoid large particulate matter, promote water sampling efficiency.The water inlet setting
In water inlet pipe side wall, water inlet pipe lower end closed, convenient for the acquisition of LNAPLs pollution water sample.It is provided with scale on the appendix,
Depth selection can be recorded.Outlet valve 16 is additionally provided on outlet pipe.
The working principle of the utility model is:
1, before sampling, gas source is opened, control valve is turned into pressurization shelves, gas source is taken compressed air injection by appendix
In sample device, check valve tight close is discharged to avoid air from water inlet pipe, and larger pressure is thus formed inside sampler；
2, sampler is put into wellbore to be taken, control valve is turned into pressure release shelves when reaching designated depth, in sampler
High pressure by control valve discharge, due to the differential pressure action inside and outside sampler, well water is entered in sampler by check valve；
3, when sampler full packages, floating ball rises and accurately blocks the aperture of guide housing, well water under the guidance of guide housing
It cannot be introduced into appendix, play the role of protecting appendix；
4, control valve turning into pressurization shelves (gas source pressurizes), check valve, which is under pressure, at this time acts on tight close,
It can prevent water sample from leaking；Sampler is finally taken out, outlet valve is opened and carries out dress sample preservation.
Claims (5)
1. a kind of differential ground water fixed depth acquisition device, it is characterised in that: the device includes sampler (8) and passes through gas transmission
Manage the gas source (1) of (2) connection sampler；The sampler includes probe tube (7), and the both ends of probe tube are respectively equipped with upper plug head
(3) and in lower end cap (9) and probe tube funnel shaped guide housing (5) are equipped with；The upper plug head is equipped with snorkel (4), ventilation
One end of pipe is connected to appendix and the other end is connected to the aperture of guide housing, and floating ball (6) are additionally provided in guide housing；Under described
Plug is equipped with water inlet pipe (10) and outlet pipe (15), water inlet pipe be respectively equipped with from top to bottom check valve (11), filter (12) and
Water inlet (13), outlet pipe are equipped with outlet valve (16).
2. differential ground water fixed depth acquisition device according to claim 1, it is characterised in that: the outer diameter of the floating ball is big
In guide housing hole diameter and ventilation bore；The snorkel is connect by connector (14) with appendix.
3. differential ground water fixed depth acquisition device according to claim 1, it is characterised in that: end seal under the water inlet pipe
It closes, water inlet is set to water inlet pipe side wall.
4. differential ground water fixed depth acquisition device according to claim 1, it is characterised in that: the upper plug head is blocked up with lower
Head is connect by helicitic texture with probe tube.
5. differential ground water fixed depth acquisition device according to claim 1, it is characterised in that: be arranged on the appendix
There is scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820817695.6U CN208270255U (en) | 2018-05-29 | 2018-05-29 | A kind of differential ground water fixed depth acquisition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820817695.6U CN208270255U (en) | 2018-05-29 | 2018-05-29 | A kind of differential ground water fixed depth acquisition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208270255U true CN208270255U (en) | 2018-12-21 |
Family
ID=64685882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820817695.6U Active CN208270255U (en) | 2018-05-29 | 2018-05-29 | A kind of differential ground water fixed depth acquisition device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208270255U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111426512A (en) * | 2020-04-07 | 2020-07-17 | 中科鼎实环境工程有限公司 | Integrated device for sampling soil gas and underground water at fixed depth |
| CN112129580A (en) * | 2020-08-25 | 2020-12-25 | 淮北矿业股份有限公司 | Sampling device and sampling method for underground water detection |
-
2018
- 2018-05-29 CN CN201820817695.6U patent/CN208270255U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111426512A (en) * | 2020-04-07 | 2020-07-17 | 中科鼎实环境工程有限公司 | Integrated device for sampling soil gas and underground water at fixed depth |
| CN112129580A (en) * | 2020-08-25 | 2020-12-25 | 淮北矿业股份有限公司 | Sampling device and sampling method for underground water detection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10788408B2 (en) | Method for determining diffusion radius of in-situ injection and remediation of contaminated soil and groundwater | |
| CN206114355U (en) | Underground water sampling device | |
| CN205000965U (en) | Moisture drilling gas piezometry device | |
| CN208270255U (en) | A kind of differential ground water fixed depth acquisition device | |
| CN103323290A (en) | Sampler for sediment pore water sampling in rivers or lakes | |
| CN205656029U (en) | Depthkeeping sampler in groundwater drilling | |
| CN109856172B (en) | Dynamic monitoring and analysis simulation device for release of heavy metal pollutants in solid waste and application | |
| CN103323285A (en) | Freezing sampler for sediments in different depth of rivers or lakes | |
| CN202900256U (en) | Draining device for measuring elevation angel hole coal bed gas pressure | |
| CN205958308U (en) | Simple and easy surface water section and phreatic water depthkeeping sampling device | |
| CN205719868U (en) | Contaminated soil and subsoil water inject in situ repairs the pilot system that dilation angle determines | |
| CN104567993A (en) | Vessel-mounted water detection system | |
| CN110231279B (en) | Comprehensive test method for dry-wet cycle corrosion of rock | |
| CN204269640U (en) | A kind of seawater detects and collecting device | |
| CN203231915U (en) | Sampler for sampling pore water of sediments in rivers or lakes | |
| Wilson | Methods for sampling fluids in the vadose zone | |
| CN207751735U (en) | A kind of sediment interstitial water sampler | |
| CN206454987U (en) | A kind of moveable-type soil prosthetic device | |
| CN110907223B (en) | Ultra-deep sampling device for critical liquid level high turbidity water and use method thereof | |
| CN104374329A (en) | River silt detecting device | |
| CN204758452U (en) | Hypotonicity saturated clay infiltration apparatus | |
| CN203658348U (en) | In-situ monitoring device for pollutant release of water sediment | |
| CN209656386U (en) | A kind of field geothermal fluid gas sample sampling equipment | |
| CN102680364A (en) | Method for testing capillary water ascending height of multihole medium | |
| CN206974863U (en) | Groundwater flow modeling equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |