CN106289874B - Multi-channel testing well underground water sample collecting apparatus and method - Google Patents
Multi-channel testing well underground water sample collecting apparatus and method Download PDFInfo
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- CN106289874B CN106289874B CN201610585698.7A CN201610585698A CN106289874B CN 106289874 B CN106289874 B CN 106289874B CN 201610585698 A CN201610585698 A CN 201610585698A CN 106289874 B CN106289874 B CN 106289874B
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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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Abstract
A kind of multi-channel testing well underground water sample collecting apparatus and method, which includes: N number of sample acquisition storage element, for accommodating collected N parts of groundwater sample；The correspondence that the water inlet of N number of sample acquisition storage element extends respectively to multi-channel testing well selectes sampling location；Flow divider more than one point, is equipped with N+1 port, one of port connection pump, remaining N number of port is connect with the water outlet of N number of sample acquisition storage element respectively；Wherein, the water outlet of N number of sample acquisition storage element and water inlet are respectively equipped with water check valve；N is the positive integer more than or equal to 2.The present invention can shorten nido multi-channel testing well sample time, improve field groundwater sampling working efficiency.
Description
Technical field
The invention belongs to groundwater environment monitoring technical fields, more particularly to a kind of multi-channel testing well sampling of ground water
Product acquisition device and a kind of acquisition method using above-mentioned acquisition device.
Background technique
Currently, the continuous improvement with groundwater environment detection requirement and the grasp to underground water pollution distribution characteristics and
Accurate description has developed different types of multistage monitoring well.Nido multi-channel testing well is a kind of novel multistage monitoring well.It
It is capable of providing multiple and different monitoring regions, the continuous multi-channel testing well of a bite can be equal to multiple single tube monitoring wells.Nido multi-pass
Deferent monitoring well realizes the purpose in single borehole monitoring multi-layer Underground Water, save the cost, economical and practical.In contaminated sites tune
It looks into the three-dimensional depiction of pollution distribution characteristics and plays irreplaceable role.But due to itself spy of the continuous monitoring well of multichannel
Point, each of which monitoring hole number is more, aperture is small, and existing groundwater sampling equipment cannot fast implement porous sample while adopt
Collection.In addition small-bore inertial pump can acquire the water sample of multi-channel testing well, but due to it operates power, can stir
Underground water in multi-channel testing hole, to influence the representativeness of groundwater sample.Therefore, groundwater sampling equipment acquires at present
The problems such as sampling time is long and disturbance is big is primarily present when multi-channel testing well.
Summary of the invention
In view of this, the main purpose of the present invention is to provide a kind of multi-channel testing well groundwater sample acquisition device and
At least one of method, to solve the above technical problems.
To achieve the above object, as one aspect of the present invention, the present invention provides a kind of multi-channel testing well undergrounds
Water sample collection device, comprising:
N number of sample acquires storage element, for accommodating collected N parts of groundwater sample；N number of sample acquisition storage
The correspondence that the water inlet of unit extends respectively to multi-channel testing well selectes sampling location；
Flow divider more than one point is equipped with N+1 port, and the connection of one of port pumps, remaining N number of port respectively with the N
The water outlet connection of a sample acquisition storage element；
Wherein, the water outlet of N number of sample acquisition storage element and water inlet are respectively equipped with water check valve；N be greater than
Positive integer equal to 2.
Wherein, the water outlet of N number of sample acquisition storage element is respectively equipped with electronics pinch valve.
Wherein, buzzer is equipped on the electronics pinch valve.
Wherein, the pump of a port connection of the flow divider more than one point is peristaltic pump or self priming pump.
Wherein, the pump is removably connect with a port of the flow divider more than one point.
Wherein, the groundwater sample acquisition device further includes pin modules, and the pin modules are adopted by guide rail control
The up and down motion of sample contact pin makes to complete collecting flowchart in the pin modules insertion N number of sample acquisition storage element.
Wherein, the sampling contact pin in the pin modules uses anti-blocking syringe needle.
Wherein, N=7.
As another aspect of the present invention, the present invention provides a kind of acquisitions of groundwater sample in multi-channel testing well
Method, comprising the following steps:
1) groundwater sample acquisition device as described above is got out, it is by conduit that N number of sample acquisition storage is single
The water outlet of member is respectively connected on N number of port of the flow divider more than one point；
2) conduit for connecting the water inlet of N number of sample acquisition storage element is extended into multi-channel testing well respectively
Target sample position；
3) water sample is evacuated to N number of sample acquisition storage element, until N number of sample by starting pump respectively from monitoring well
Product acquire storage element water sample sample Chu Manhou, are automatically closed after the triggering of electronics pinch valve.
Wherein, electronics pinch valve meets when water is automatically closed and beeps.
Compared with prior art, acquisition device of the invention and method have the advantage that
1, the groundwater sample that multiple holes can be acquired simultaneously by flow divider more than one point, shortens nido multi-channel testing well
Sample time, to improve sampling work efficiency；
2, directly sample acquisition is entered in sampling bottle by reducing human contact, excess step is avoided to increase and air
Contact achievees the purpose that improve acquisition sample accuracy；
3, by modularized design, make the underground laden water collecting device more for wide applicability, it is easy to operate, it carries more
It is convenient to add, and practicability is stronger.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the acquisition device as one embodiment of the present invention；
Fig. 2 is the appearance diagram of one point of seven flow divider as one embodiment of the present invention；
Fig. 3 is the perspective diagram of needle tubing module of the invention.
Description of symbols in figure:
1. guide rail slide block, 2. installation panels, 3. upper mounted plates, 4. fixing axles, 5. springs, 6. lower platens, 7. firm bankings,
8. sampling needle installation module, 9. slider connecting plates, 10. sampling pagoda crossover subs, 11. upper mounting seats, 12. lower mounting seats, 13.
Sampling needle.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in further detail.
The invention discloses a kind of multi-channel testing well groundwater sample acquisition devices, comprising:
N number of sample acquires storage element, for accommodating collected N parts of groundwater sample；N number of sample acquisition storage
The correspondence that the water inlet of unit extends respectively to multi-channel testing well selectes sampling location；
Flow divider more than one point is equipped with N+1 port, and the connection of one of port pumps, remaining N number of port respectively with the N
The water outlet connection of a sample acquisition storage element；
Wherein, the water outlet of N number of sample acquisition storage element and water inlet are respectively equipped with water check valve；N be greater than
Positive integer equal to 2.
Preferably, multi-channel testing well groundwater sample acquisition device of the invention, comprising:
Sampling pump: selecting the pump met the requirements according to the actual situation, can directly dock with sample acquisition stocking system；
Distribution pipeline system: one point of seven shunting valve body is equipped with 8 ports, one of port connection pump, remaining 7 ends
Mouth is separately connected the port of sampling bottle water outlet, and the water inlet of sampling bottle extends to monitoring well sampling location, the water outlet of each sampling bottle
Mouth is equipped with water check valve with water inlet；Multiple ports of one point of seven flow divider connection sampling bottle water outlet are respectively equipped with electronics clamp
Valve.
Sample acquires stocking system: including 7 sampling bottles, the water outlet of each sampling bottle passes through conduit and one point of seven flow divider
Connection；The water inlet of each sampling bottle extends to monitoring well sampling location by conduit.It is filled with nitrogen in sampling bottle, base when water sampling
This is not in contact with air.It further includes platen system that the sample, which acquires stocking system, passes through the pin modules cooperated with pressing plate
Realize sampling operation.
Smart circuit control system: electronics pinch valve is equipped with buzzer.Control system can control the start and stop of pump at any time, adjust
The flow velocity of whole pump controls the upper and lower of pressing plate.
As shown in Figure 1, the platen system that the sample acquires stocking system is main as a preferred embodiment of the present invention
It is the up and down motion for controlling whole-sample contact pin by linear guide, makes in pin modules insertion sampling bottle, sample collection is completed
After extract contact pin.Module contact pin and top board are fixed on the guide rail slide block 1 on firm banking 7 by tooling first, and are pushed
Plate 6 is connected by fixing axle 4 (bolt) and top board, is pre-tightened among upper and lower plates by spring 5.Work as guide rail slide block
1 when moving downward, and top board drives contact pin and lower platen to move together, when sampling bottle is encountered in the movement of lower platen 6, lower platen 6
Due to the limitation stop motion of freedom degree, top board drives pin modules continuation to move down, inserts a needle into sampling bottle, at this time
Stopping is moved downward, whole-sample starts, and peristaltic pump operating, the air extracted out in bottle adopts the water quality sample in well, works as sampling
When water quality sample in bottle reaches requirement, water level is higher than contact pin position in bottle, is triggered and is stopped by the conducting between contact pin
Sample command thus completes water quality sampling.Finally, linear guide moves upwards, top board uplink is driven, but due to spring
Elastic force caused by 5 deformation, which can make lower platen 6 push down sampling bottle, move upwards it can not.When contact pin is extracted completely,
Top board drives the whole uplink of lower platen 6, returns to home position, completes entire collecting flowchart.
As shown in figure 3, may further see the structure of the pin modules, including sampling pagoda crossover sub 10, upper peace
Fill seat 11, lower mounting seat 12 and sampling needle 13.
The invention also discloses a kind of sides sampled using above-mentioned multi-channel testing well groundwater sample acquisition device
Method, comprising the following steps:
1) water outlet of multiple sampling bottles is respectively connected to the port of one point of seven flow divider by conduit；
2) conduit is installed in the water inlet of sampling bottle respectively, length is until go deep into continuous multi-channel testing well sampling position
It sets；
3) one point of seven one pump of flow divider connection；
4) after pump running, water sample is evacuated to sampling bottle from monitoring well, until sampling bottle water sample sample Chu Manhou, electronics clamp
Valve is automatically closed；
5) water check valve for closing sampling bottle rear and front end takes out sampling bottle refrigeration, detection to be analyzed.
In this method, electronics pinch valve meets when water is automatically closed and beeps.
Embodiment
One point of seven flow divider of the present embodiment is rake in one, as shown in Fig. 2, the side of one point of seven flow divider of boring
For the port of connection pump (pump of the present embodiment is to be also possible to self priming pump by taking peristaltic pump as an example), one point of seven flow divider it is another
Side is arranged with the port of 7 connection sampling bottles.
Select the continuous multi-channel testing well a bite in southern field test place, place underground water 1.5~2m of buried depth, multi-pass
The monitor layer position buried depth in road 7 holes of continuous monitoring well is respectively 2.5m, 3m, 3.5m, 4m, 5m, 6m, 7m.Choose 7 40mL samplings
Bottle, water inlet is separately connected conduit and is put into 7 holes of continuous multi-channel testing well, the water outlet of sampling bottle then respectively with one point
Seven flow dividers are connected.Being connected with peristaltic pump for one point of seven flow divider, then starts peristaltic pump, groundwater sample can flow into sampling
Bottle is contacted with the electronics pinch valve with buzzer until filling, is beeped, then water check valve is closed, and takes out sampling bottle
Refrigeration, it is to be analyzed, it completes to be 0.5h the time required to entire sampling process, each hole sampling amount is 100ml.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical scheme and beneficial effects
Describe in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in protection of the invention
Within the scope of.
Claims (9)
1. a kind of multi-channel testing well underground water sample collecting apparatus characterized by comprising
N number of sample acquires storage element, for accommodating collected N parts of groundwater sample；N number of sample acquires storage element
Water inlet extend respectively to multi-channel testing well correspondence select sampling location；
Flow divider more than one point is equipped with N+1 port, and the connection of one of port pumps, remaining N number of port respectively with N number of sample
Product acquire the water outlet connection of storage element；
Platen system, including top board, the spring between upper and lower pressing plate, lower platen and linear guide；
Pin modules, including sampling pagoda crossover sub, upper mounting seat, lower mounting seat and sampling contact pin, wherein the contact pin mould
Block and top board are fixed on the sliding block of linear guide by tooling, and the up and down motion of sampling contact pin is controlled by linear guide,
Make to complete collecting flowchart in the pin modules insertion N number of sample acquisition storage element；Specifically, when sliding block moves downward
When, top board drives sampling contact pin and lower platen to move together, when sample acquisition storage element is encountered in presser motion instantly, pushes
Plate stop motion, top board drive pin modules continuation to move down, insert a needle into sample acquisition storage element, at this time downwards
Movement stops, and whole-sample starts, and peristaltic pump operating, the air extracted out in storage element adopts the water quality sample in well；Work as sample
When water quality sample in product acquisition storage element reaches requirement, water level is higher than contact pin position in storage element, passes through contact pin
Between conducting triggering stop sample command, to complete water quality sampling；Finally, linear guide moves upwards, top board is driven
Uplink, but the elastic force as caused by the deformation of spring, which makes lower platen push down sample acquisition storage element, keeps it upward
Movement, when sampling contact pin is extracted completely, top board drives lower platen entirety uplink, returns to home position, completes entire acquisition
Process；
Smart circuit control system, for controlling the up and down motion of the start and stop of pump, the flow velocity of adjustment pump, the upper and lower pressing plate of control；
Wherein, the water outlet of N number of sample acquisition storage element and water inlet are respectively equipped with water check valve；N is more than or equal to 2
Positive integer.
2. multi-channel testing well underground water sample collecting apparatus according to claim 1, which is characterized in that described N number of
The water outlet of sample acquisition storage element is respectively equipped with electronics pinch valve.
3. multi-channel testing well underground water sample collecting apparatus according to claim 2, which is characterized in that the electronics
Buzzer is equipped on pinch valve.
4. multi-channel testing well underground water sample collecting apparatus according to claim 1, which is characterized in that described one point
The pump of a port connection of more flow dividers is peristaltic pump or self priming pump.
5. multi-channel testing well underground water sample collecting apparatus according to claim 1, which is characterized in that it is described pump with
Dismountable mode is connect with a port of the flow divider more than one point.
6. multi-channel testing well underground water sample collecting apparatus according to claim 1, which is characterized in that the contact pin
Sampling contact pin in module uses anti-blocking syringe needle.
7. multi-channel testing well underground water sample collecting apparatus according to claim 1, which is characterized in that N=7.
8. the acquisition method of groundwater sample in a kind of multi-channel testing well, which comprises the following steps:
1) multi-channel testing well underground water sample collecting apparatus as claimed in any one of claims 1 to 7 is got out, is passed through
The water outlet of N number of sample acquisition storage element is respectively connected on N number of port of the flow divider more than one point by conduit；
2) conduit for connecting the water inlet of N number of sample acquisition storage element is extended to the target of multi-channel testing well respectively
Sample position；
3) water sample is evacuated to N number of sample acquisition storage element, until N number of sample is adopted by starting pump respectively from monitoring well
Collect storage element water sample sample Chu Manhou, is automatically closed after the triggering of electronics pinch valve.
9. acquisition method according to claim 8, wherein electronics pinch valve meets when water is automatically closed and beeps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610585698.7A CN106289874B (en) | 2016-07-22 | 2016-07-22 | Multi-channel testing well underground water sample collecting apparatus and method |
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| CN201610585698.7A CN106289874B (en) | 2016-07-22 | 2016-07-22 | Multi-channel testing well underground water sample collecting apparatus and method |
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| CN106289874B true CN106289874B (en) | 2019-09-24 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108827720A (en) * | 2018-08-27 | 2018-11-16 | 云南电网有限责任公司电力科学研究院 | A kind of outer cold water water intake system applied to high voltage direct current converter valve |
| CN111537288B (en) * | 2020-06-28 | 2022-12-16 | 中流工程设计咨询有限公司 | Deep water body batch sampling equipment for water quality monitoring |
| CN112444432A (en) * | 2020-11-13 | 2021-03-05 | 安徽省（水利部淮河水利委员会）水利科学研究院（安徽省水利工程质量检测中心站） | Timing-interval continuous automatic water sampling device |
| CN113237530B (en) * | 2021-05-08 | 2022-02-25 | 中国农业大学 | Underground water level monitoring and automatic sampling and storing device and method |
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| CN2102508U (en) * | 1991-10-07 | 1992-04-22 | 天津市轻工机械联合公司 | Automatic water quality sampler |
| US5441071A (en) * | 1994-05-04 | 1995-08-15 | Mclane Research Laboratories, Inc. | Automated water sample collecting system |
| CN201532390U (en) * | 2009-11-13 | 2010-07-21 | 中国水产科学研究院渔业机械仪器研究所 | Multipoint continuous automatic water quality monitoring device |
| CN202994539U (en) * | 2013-01-04 | 2013-06-12 | 宜兴市建邦环境投资有限责任公司 | Automatic sampling device based on sequential control |
| CN103398874A (en) * | 2013-08-14 | 2013-11-20 | 中国科学院南京地理与湖泊研究所 | Automatic water body stratification synchronous sampling device and sampling method |
| CN103424283A (en) * | 2013-09-10 | 2013-12-04 | 中国环境科学研究院 | Portable underground water sampler |
| CN104807675A (en) * | 2015-04-09 | 2015-07-29 | 中国环境科学研究院 | Quick acquisition device for groundwater samples of continuous multi-channel monitor well |
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2016
- 2016-07-22 CN CN201610585698.7A patent/CN106289874B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2102508U (en) * | 1991-10-07 | 1992-04-22 | 天津市轻工机械联合公司 | Automatic water quality sampler |
| US5441071A (en) * | 1994-05-04 | 1995-08-15 | Mclane Research Laboratories, Inc. | Automated water sample collecting system |
| CN201532390U (en) * | 2009-11-13 | 2010-07-21 | 中国水产科学研究院渔业机械仪器研究所 | Multipoint continuous automatic water quality monitoring device |
| CN202994539U (en) * | 2013-01-04 | 2013-06-12 | 宜兴市建邦环境投资有限责任公司 | Automatic sampling device based on sequential control |
| CN103398874A (en) * | 2013-08-14 | 2013-11-20 | 中国科学院南京地理与湖泊研究所 | Automatic water body stratification synchronous sampling device and sampling method |
| CN103424283A (en) * | 2013-09-10 | 2013-12-04 | 中国环境科学研究院 | Portable underground water sampler |
| CN104807675A (en) * | 2015-04-09 | 2015-07-29 | 中国环境科学研究院 | Quick acquisition device for groundwater samples of continuous multi-channel monitor well |
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