CN105651556B - The vacuum harvesting apparatus of water sample in seepage action of ground water model - Google Patents
The vacuum harvesting apparatus of water sample in seepage action of ground water model Download PDFInfo
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- CN105651556B CN105651556B CN201610222628.5A CN201610222628A CN105651556B CN 105651556 B CN105651556 B CN 105651556B CN 201610222628 A CN201610222628 A CN 201610222628A CN 105651556 B CN105651556 B CN 105651556B
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- monitoring well
- sampling pipe
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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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- Hydrology & Water Resources (AREA)
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Abstract
The invention discloses a kind of vacuum harvesting apparatus of water sample in seepage action of ground water model, described device includes that simulation monitoring well, sampling needle and vacuum sampling pipe, the simulation monitoring well and sampling needle are sealedly attached on the simulation water barrier of flow model in porous media.When specifically used, the sealing-plug of vacuum sampling pipe lid need to only be pressed on bottle cork needle, there are negative pressure in vacuum sampling pipe, under the action of negative pressure, water sample just by water sampling pipe sucking vacuum sampling pipe, after obtaining sample, pulls out vacuum sampling pipe, sealing-plug is still in air-tight state, and water sample is just sealed up for safekeeping in vacuum sampling pipe.The advantages of this water sample acquisition device structure is simple, is convenient for operation, and water sample is few with being detained, and realizes multi collect and reveals without solute volatilization.
Description
Technical field
The present invention relates to underground water acquisition technique fields, and in particular to water sample is true in a kind of seepage action of ground water model
Empty acquisition device.
Background technique
Underground water is to be stored in the following formation void of aeration zone, including the water among blowhole, crack and solution cavity.Ground
Being lauched is one of main, most commonly used water resource of distribution on the earth.The whole world is more than that 1,500,000,000 people relies primarily on underground water
As drinking water.2008,591,000,000,000 m of China's total supply3, wherein underground water source water supply accounts for 18.3%.China has 400
Multiple city exploiting groundwaters, North China, the Northwest's urban utilization underground water ratio are up to 72% and 66% respectively, and underground water is past
Past is the unique resource of water supply in urban and rural area.Underground water is that the development of China's economy and society and people's lives institute are required
, irreplaceable valuable source.
In the past 20 years, China human mortality is more intensive, mankind's activity interference is big, industrial and agricultural production prosperity plains region,
Due to the discharge of industrial wastewater and sanitary sewage, the use of large area, excess chemical fertilizer and pesticide, the leaching in soot and subterranean oil
The reasons such as the leakage of tank, underground water are just suffering from increasingly severe pollution.According to the tune of national 118 big city phreatic waters
It looks into, 97.5% city is by different degrees of pollution, wherein 40% city is heavily contaminated.In national Investigation of water resources
1,970,000 km of evaluation2In region of no relief phreatic water, the area in I class and II class water quality area is only the 4.98% of total drainage area,
III class area is 35.53%, and IV, V class area is up to 59.49%.The basins such as Taihu Lake, the Liaohe River, Haihe River, Huaihe River underground water pollution
The most serious, the water quality area area for being inferior to III class water quality accounts for the 91.49%, 84.55% of each corresponding drainage area, 76.40% He
67.78%.Water quality type water shortage caused by underground water pollution has become the important restriction factor of national economy and social development.Cause
This, the research of ground water protection means, method for governing pollution etc. is current project urgently to be resolved.
Small underground water seepage flow physical model be constructed using water proof material and water-bearing media can simulated groundwater exist
The model that movement and water quality develop in water-bearing layer is that method is controlled in Study of The Underground water water flow movement and solute transport and pollution
One of main means.
The concentration of solute is to characterize the important indicator of its migration rule in a model.To obtain solute concentration, suction is often utilized
The modes such as pipe, siphon, peristaltic pump first take out water sample from flow model in porous media, place into specified container and save or detect.It takes
During sample, part water sample may be trapped in sampling line, mixed, caused with new sample when sampling next time
New sample concentration inaccuracy.And for the water sample containing volatile solutes, existing water sampling technology leakproofness is poor, solute
Volatile leakage causes sample concentration inaccurate.
Summary of the invention
The purpose of the present invention is to provide a kind of vacuum harvesting apparatus of water sample in seepage action of ground water model, to solve
The problem of certainly existing sampling concentration inaccuracy.
In order to solve the above technical problem, the present invention provides following technical solutions:
The vacuum harvesting apparatus of water sample in a kind of seepage action of ground water model, described device include simulation monitoring well, adopt
Sample needle and vacuum sampling pipe, the simulation monitoring well and sampling needle are sealedly attached on the simulation water barrier of flow model in porous media.
The simulation water barrier for the flow model in porous media that the present invention uses is the common component part of flow model in porous media, is for simulating ground
The waterproof soil body or the water-stop sheet of rock stratum also function to the effect of sealing while obstructing water flow in lower environment.
In above-mentioned seepage action of ground water model in the vacuum harvesting apparatus of water sample, the simulation monitoring well includes monitoring well
Pipe and filter are provided on the monitoring well casing pipe shaft and vertically crack, convenient for water flow flowing, in the same of the true monitoring well of simulation
When, also play the purpose for avoiding interference Analysis of Ground-water Seepage Field；The filter tight is wrapped in the filter on monitoring well casing pipe shaft
Net, and the range wound is greater than the range cracked, and the one end for monitoring well casing has connecting pin, for connecting with simulation water barrier
It connects；The filter can prevent the infiltration in fine particle or water in water-bearing media on fine impurities blocking monitoring well casing pipe shaft
Flow gap.The water-bearing media filled in flow model in porous media can generate lateral pressure, and simulation monitoring well withstands lateral pressure, prevents from setting
It is damaged in water sampling Guan Yin therein by lateral pressure.Simulation monitoring well is applied not only to simulate actual monitoring well, together
When play the role of protect water sampling pipe.
Preferably, in above-mentioned seepage action of ground water model in the vacuum harvesting apparatus of water sample, outside the monitoring well casing
Diameter is 8mm, internal diameter 6mm；The slit width vertically cracked be 1mm, a length of 20mm, the monitoring well casing pipe shaft with simulate water proof
The long 5mm in connecting pin of layer.
In above-mentioned seepage action of ground water model in the vacuum harvesting apparatus of water sample, the sampling needle includes water sampling
Pipe, needle stand and bottle cork needle, the water sampling pipe and bottle cork needle are installed on needle stand, and the needle stand is fixed on mould
On quasi- water barrier.Water sampling pipe is placed in the tubule that water sample is drawn in simulation monitoring well, and bottle cork needle is for piercing
Vacuum breaker sampling pipe seal rubber, water sample is transported in vacuum sampling pipe.
In above-mentioned seepage action of ground water model in the vacuum harvesting apparatus of water sample, have on the pipe shaft of the water sampling pipe
Aperture, aperture 0.5mm flow convenient for water flow, are detained water sample in water sampling pipe to achieve the purpose that reduce.
In above-mentioned seepage action of ground water model in the vacuum harvesting apparatus of water sample, wrapped up certainly outside the bottle cork needle
Sealing rubber cover may be implemented multi collect without revealing, reveal so as to avoid the volatilization of volatile solutes.Bottle stopper is worn
Pricker uses thinner internal diameter, is wherein detained water sample to achieve the purpose that reduce.
In above-mentioned seepage action of ground water model in the vacuum harvesting apparatus of water sample, the vacuum sampling pipe include test tube,
Lid and sealing-plug.
Preferably, the material of the sealing-plug is polytetrafluoroethylene (PTFE), so as to guarantee that the solute in water sample is not sent out with sealing-plug
Biochemical reaction, the cooperation between the sealing-plug and test tube is close, and the air-tightness of sealing-plug itself is good.
The material of the test tube is glass, preferably high quality silicon boron glass, pipe outside diameter 13mm, internal diameter 11m, selected glass
Glass test tube needs to carry out pickling, alkali cleaning and internal progress silicidation, makes it have good chemical inertness.
The lid is the plastic part covered outside sealing-plug, and there are the opening for sampling pin puncture, lids among lid
The vacuum and capping processes for ensuring to be conducive to vacuum sampling pipe do not make interior when convenient for either manually or mechanically opening test tube
The water sample in portion splashes out, and cannot make the bottleneck for being infected with water sample and plug contacts to the hand of operator and open equipment, can not
Teat glass nozzle is staved.
Wherein, vacuum sampling pipe is the preservation container for drawing the source pressure and water sample of water sample.The present invention
Sampling method it is very convenient, only the sealing-plug of vacuum sampling pipe lid need to be pressed on bottle cork needle.Due to true
There are negative pressure in empty sampling pipe, after bottle cork needle punctures its sealing-plug, under the action of negative pressure, water sample is adopted via water sample
Collector is inhaled into sampling pipe.After obtaining sample, vacuum sampling pipe is pulled out, sealing-plug is still in air-tight state, and water sample is just sealed up for safekeeping
In vacuum sampling pipe.
Preferably, the circular hole for installing sampling needle, simulating monitoring well is opened up on the simulation water barrier above and below respectively
A and circular hole B, circular hole A and circular hole B are mutually communicated and the center of circle coincides.
It is highly preferred that the circular hole aperture for installing sampling needle is 5mm, the circular hole aperture for installing simulation monitoring well is
8mm。
The method of the present invention has the advantages that
This water sample vacuum harvesting apparatus structure is simple, convenient for operation, has that be detained water sample few, realize multi collect and
The advantages of no solute volatilization leakage.
Detailed description of the invention
Fig. 1 is vacuum harvesting apparatus working method schematic diagram of the present invention；
Fig. 2 is the structural schematic diagram of present invention simulation monitoring well；
Fig. 3 is the structural schematic diagram of sampling needle of the present invention；
Fig. 4 is the structural schematic diagram of vacuum sampling pipe of the present invention；
Fig. 5 is apparatus of the present invention scheme of installation；
In figure, 1- simulates monitoring well, 2- sampling needle, 3- vacuum sampling pipe, 4- simulation water barrier, 11- monitoring well casing, 12-
Filter 13- vertically cracks, the connecting pin 14-, 21- water sampling pipe, 22- needle stand, 23- bottle cork needle, 24- self-sealing rubber
Set, 31- test tube, 32- lid, 33- sealing-plug, 41- circular hole A, 42- circular hole B, 211- aperture.
Specific embodiment
The specific embodiment that the present invention will be described in more detail below with reference to accompanying drawings.Although being shown in attached drawing of the invention
Specific embodiment, it being understood, however, that may be realized in various forms the present invention without that should be limited by embodiments set forth here
System.It is to be able to thoroughly understand the present invention on the contrary, providing these embodiments, and can be complete by the scope of the present invention
Be communicated to those skilled in the art.
"comprising" or " comprising " as mentioned throughout the specification and claims are an open language, therefore are answered
It is construed to " including but not limited to ".Specification subsequent descriptions are to implement better embodiment of the invention, and so description is
For the purpose of the rule of specification, the range that is not intended to limit the invention.Protection scope of the present invention is when the appended power of view
Benefit requires subject to institute's defender.
The vacuum harvesting apparatus of water sample in a kind of seepage action of ground water model, as shown in Figure 1, described device includes simulation
Monitoring well 1, sampling needle 2 and vacuum sampling pipe 3, the simulation monitoring well and sampling needle are sealedly attached to the simulation of flow model in porous media
On water barrier 4.
As shown in Fig. 2, the simulation monitoring well 1 includes monitoring well casing 11 and filter 12,11 pipe shaft of monitoring well casing
On be provided with and vertically crack 13, flowed convenient for water flow, while simulate true monitoring well, also play and avoid interference underground water infiltration
The purpose in flow field；The filter 12 winds around monitoring 11 pipe shaft of well casing by the copper wire that diameter is 0.1mm or stainless steel wire
On strainer, and the range wound is greater than the range vertically cracked, and one end of monitoring well casing 11 has connecting pin 14, for
Water barrier 4 is simulated to connect；The filter 12 can prevent fine impurities blocking prison in fine particle or water in water-bearing media
The seepage flow gap logged well on 11 pipe shaft of pipe.The water-bearing media filled in flow model in porous media can generate lateral pressure, and simulation monitoring well 1 is supported
Lateral pressure is blocked, prevents the water sampling Guan Yin being placed in one from being damaged by lateral pressure.Simulation monitoring well is applied not only to
Actual monitoring well is simulated, while playing the role of protecting water sampling pipe.In practical application, monitoring well length of tube and filtering
Device length is determined by the requirement of specific Seepage Experiment.
Preferably, it is described monitoring well casing 11 outer diameter be 8mm, internal diameter 6mm；It is described vertically crack 13 slit width be 1mm,
A length of 20mm, monitoring 11 pipe shaft of well casing and the connecting pin 14 for simulating water barrier 4 are 5mm long.
Also, as shown in figure 3, the sampling needle 2 include water sampling pipe 21, needle stand 22 and bottle cork needle 23, it is described
Water sampling pipe 21 and bottle cork needle 23 are installed on needle stand 22, and the needle stand 22 is fixed on simulation water barrier 4.Water sample
Collection tube is placed in the tubule that water sample is drawn in simulation monitoring well, and bottle cork needle 23 is for puncturing vacuum sampling pipe 3
Seal rubber, water sample is transported in vacuum sampling pipe.Water sampling pipe can be by stainless steel tube, glass tube and polytetrafluoro
Ethylene tube makes, pipe outside diameter 2.0mm, internal diameter 1.8mm, has multiple apertures 211, Mei Gekong on the pipe shaft of the water sampling pipe 21
Aperture be 0.5mm, convenient for water flow flow, with achieve the purpose that reduce water sampling pipe in be detained water sample.
Preferably, self-sealing rubber sleeve 24 is wrapped up outside the bottle cork needle 23, and multi collect may be implemented without sending out
Raw leakage is revealed so as to avoid the volatilization of volatile solutes.Bottle cork needle uses thinner internal diameter, is reduced wherein with reaching
It is detained the purpose of water sample.Bottle cork needle internal diameter 0.36mm, can by shortening needle length, or reduce the mode of its internal diameter into
One step, which is reduced, is detained volume of water sample.Water sampling pipe and bottle cork needle are installed on needle stand, then pass through needle stand for sampling needle
It is fixed on simulation water barrier.
Also, as shown in figure 4, in above-mentioned seepage action of ground water model in the vacuum harvesting apparatus of water sample, the vacuum
Sampling pipe 3 includes test tube 31, lid 32 and sealing-plug 33.
Preferably, the material of the sealing-plug is polytetrafluoroethylene (PTFE), so as to guarantee that the solute in water sample is not sent out with sealing-plug
Biochemical reaction, the cooperation between the sealing-plug and test tube is close, and the air-tightness of sealing-plug itself is good.
The material of the test tube is glass, preferably high quality silicon boron glass, pipe outside diameter 13mm, internal diameter 11m, selected glass
Glass test tube needs to carry out pickling, alkali cleaning and internal progress silicidation, makes it have good chemical inertness.
The lid is the plastic part covered outside sealing-plug, and there are the opening for sampling pin puncture, lids among lid
The vacuum and capping processes for ensuring to be conducive to vacuum sampling pipe do not make interior when convenient for either manually or mechanically opening test tube
The water sample in portion splashes out, and cannot make the bottleneck for being infected with water sample and plug contacts to the hand of operator and open equipment, can not
Teat glass nozzle is staved.
Wherein, vacuum sampling pipe is the preservation container for drawing the source pressure and water sample of water sample.The present invention
Sampling method it is very convenient, only the sealing-plug of vacuum sampling pipe lid need to be pressed on bottle cork needle.
Preferably, it is sealedly attached on simulation water barrier, is needed in simulation water barrier for monitoring well and sampling needle will be simulated
It is upper to be opened up respectively for installing sampling needle, simulating the circular hole A 41 that the aperture of monitoring well is 5mm and the circular hole B that aperture is 8mm
42, circular hole A 41 and circular hole B42 are mutually communicated and the center of circle coincides.
When specifically used, simulation monitoring well and sampling needle are installed, specially (as shown in Figure 5):
Teflin ring is placed at the circular hole B of installation simulation monitoring well by installation simulation monitoring well first, then will
Simulation monitoring well connecting pin is put into sealing ring, and is firmly pressed into corresponding circular hole B.Sealing ring during pressing
It deforms, and fills gap between aperture and well casing, to achieve the purpose that be sealed.Installation simulation monitoring well and then installation
Teflin ring is first placed at the circular hole A of installation sampling needle, then sampling needle needle stand is put into sealing ring by sampling needle
It is interior, and firmly sampling needle is pressed into corresponding circular hole A, sealing ring deforms during pressing, and fill aperture with
Gap between needle stand, to achieve the purpose that be sealed.
Simulate monitoring well and sampling needle after the installation is completed, the vacuum of water sample in small underground water seepage flow physical model
Acquisition device is completed, and when specifically used, only the sealing-plug of vacuum sampling pipe lid need to be pressed on bottle cork needle
It is upper.Due in vacuum sampling pipe there are negative pressure, after bottle cork needle punctures its sealing-plug, under the action of negative pressure, water quality
Sample is inhaled into sampling pipe via water sampling pipe.After obtaining sample, vacuum sampling pipe is pulled out, sealing-plug is still in sealed shape
State, water sample are just sealed up for safekeeping in vacuum sampling pipe.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (9)
1. the vacuum harvesting apparatus of water sample in seepage action of ground water model, which is characterized in that described device includes simulation monitoring
Well (1), sampling needle (2) and vacuum sampling pipe (3), the simulation monitoring well (1) and sampling needle (2) are sealedly attached to seepage flow mould
On the simulation water barrier (4) of type, the sampling needle (2) includes water sampling pipe (21), needle stand (22) and bottle cork needle (23),
The water sampling pipe (21) and bottle cork needle (23) are installed on needle stand (22), the needle stand (22) be fixed on simulation every
On water layer (4), have aperture (211) on the pipe shaft of the water sampling pipe (21), the aperture of aperture (211) is 0.5mm.
2. the vacuum harvesting apparatus of water sample in seepage action of ground water model according to claim 1, which is characterized in that institute
Stating simulation monitoring well (1) includes monitoring well casing (11) and filter (12), is provided on monitoring well casing (12) pipe shaft and vertically opens
It stitches (13), is flowed convenient for water flow；The one end for monitoring well casing (11) has connecting pin (14), for connecting with simulation water barrier (4)；
The filter (12) is the strainer wound around on monitoring well casing (11) pipe shaft, and the range wound is greater than the model to crack
It encloses.
3. the vacuum harvesting apparatus of water sample in seepage action of ground water model according to claim 2, which is characterized in that institute
State monitoring well casing (11) outer diameter be 8mm, internal diameter 6mm；Slit width 1mm, a length of 20mm for vertically cracking (13), the company
Meet end (14) long 5mm.
4. the vacuum harvesting apparatus of water sample in seepage action of ground water model according to claim 1, which is characterized in that institute
It states and wraps up self-sealing rubber sleeve (24) outside bottle cork needle (23).
5. the vacuum harvesting apparatus of water sample in seepage action of ground water model according to claim 1, which is characterized in that institute
Stating vacuum sampling pipe (3) includes test tube (31), lid (32) and sealing-plug (33).
6. the vacuum harvesting apparatus of water sample in seepage action of ground water model according to claim 5, which is characterized in that institute
The material for stating sealing-plug (33) is polytetrafluoroethylene (PTFE).
7. the vacuum harvesting apparatus of water sample in seepage action of ground water model according to claim 1, which is characterized in that institute
The outer diameter for stating vacuum sampling pipe (3) is 13mm, internal diameter 11mm.
8. the vacuum harvesting apparatus of water sample in seepage action of ground water model according to claim 1, which is characterized in that institute
State simulation water barrier (4) above and below on open up respectively for install sampling needle (2), simulate monitoring well (1) circular hole A (41) and
Circular hole B (42), circular hole A (41) and circular hole B (42) is mutually communicated and the center of circle coincides.
9. the vacuum harvesting apparatus of water sample in seepage action of ground water model according to claim 8, which is characterized in that circle
The aperture of hole A (41) is 5mm, and the aperture of circular hole B (42) is 8mm.
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| CN201610222628.5A CN105651556B (en) | 2016-04-11 | 2016-04-11 | The vacuum harvesting apparatus of water sample in seepage action of ground water model |
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| CN201610222628.5A CN105651556B (en) | 2016-04-11 | 2016-04-11 | The vacuum harvesting apparatus of water sample in seepage action of ground water model |
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| CN105651556B true CN105651556B (en) | 2018-12-25 |
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| CN109187103B (en) * | 2018-11-20 | 2024-05-17 | 美丽国土（北京）生态环境工程技术研究院有限公司 | Layered water stop sampling device |
| CN109752220A (en) * | 2019-03-21 | 2019-05-14 | 庞凯戈 | Water burst monitoring device in spring in spring pond |
| CN110104191B (en) * | 2019-05-27 | 2024-03-26 | 浙江省舟山中学 | Unmanned aerial vehicle-based underwater water sample automatic acquisition device |
| CN113588343A (en) * | 2021-08-04 | 2021-11-02 | 山东恒诚检测科技有限公司 | Sewage cross section sampling device for water quality environment detection |
| CN117554556B (en) * | 2024-01-12 | 2024-05-10 | 佳木斯大学 | Gastric juice acidity detection device for digestive system |
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| JP2004212250A (en) * | 2003-01-06 | 2004-07-29 | Sekisui Chem Co Ltd | Specimen collection tool |
| CN102998149A (en) * | 2011-09-16 | 2013-03-27 | 江苏康健医疗用品有限公司 | Negative pressure urine collecting device |
| CN203465119U (en) * | 2013-09-11 | 2014-03-05 | 长沙环境保护职业技术学院 | Rice field soil water extraction device |
| CN105275075A (en) * | 2015-11-06 | 2016-01-27 | 江阴市星宇塑胶有限公司 | Internal and external water seepage filtering pipe and preparation method |
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