CN110658025A - Underground water low-speed automatic sampling device - Google Patents
Underground water low-speed automatic sampling device Download PDFInfo
- Publication number
- CN110658025A CN110658025A CN201911009618.3A CN201911009618A CN110658025A CN 110658025 A CN110658025 A CN 110658025A CN 201911009618 A CN201911009618 A CN 201911009618A CN 110658025 A CN110658025 A CN 110658025A
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- Prior art keywords
- water
- low
- speed
- level gauge
- control unit
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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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- 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
- G01N2001/1031—Sampling from special places
Abstract
The invention discloses an underground water low-speed automatic sampling device.A water low-speed water pump is installed in a well, a water level gauge is placed on the water surface, the other end of the water low-speed water pump is connected with a water level gauge control cable, the water level gauge control cable is wound on a water level gauge wire coil, and the other end of the water low-speed water pump is connected with a central control unit. One end of the low-speed water pump is connected with a water pumping pipe and an inflation pipe, the water pumping pipe and the inflation pipe are connected to a water pump wire coil, and the other end of the inflation pipe is connected to the central control unit. The central control unit is connected with a multi-parameter detector and a display screen. The three-way valve is connected in the central control unit below, and the multi-parameter detector left side, the downside of three-way valve are connected with the water sample collector, and the downside of multi-parameter detector is connected with waste water collector. The invention has the advantages that the full-automatic method is adopted, the work of automatic well washing and low-speed sampling of the local trace of the water production layer can be realized, the time and the labor are saved, and the sampling error caused by human factors is eliminated.
Description
Technical Field
The invention relates to the field of environmental monitoring, the field of hydrogeology and the field of natural resources, in particular to standardized sampling of volatile organic compounds in underground water, and particularly relates to a low-speed automatic underground water sampling device.
Background
When the volatile organic compounds in the underground water are sampled and detected, 3-5 times of well volume well water needs to be extracted for well washing, water bodies deposited in the well for a long time are replaced, then the extracted water sample is detected, and whether the sampling conditions are met or not is judged according to the sampling standard. The traditional method is that well water is pumped out manually through a water pump, then multi-parameter detection (pH, temperature, conductivity, oxidation-reduction potential, dissolved oxygen and turbidity) is carried out on the well water respectively, water samples which are unqualified in detection are abandoned, and water samples which are qualified in detection are collected. The traditional method is completed manually, so that the problems of long sampling time, large well flushing amount, low sampling efficiency and the like exist, and meanwhile, the detection result is inaccurate due to large water body disturbance and loss of volatile organic compounds in water.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
Aiming at the technical problems in the related art, the invention provides an underground water low-speed automatic sampling device which can solve the problems.
In order to achieve the technical purpose, the technical scheme of the invention is realized as follows:
the low speed automatic sampling device for underground water has low speed water pump installed inside water well and water level meter set on the water surface. The other end of the water level gauge is connected with a water level gauge control cable, the water level gauge control cable is wound on a water level gauge wire coil, and the other end of the water level gauge control cable is connected with a central control unit. One end of the low-speed water pump is connected with a water pumping pipe and an inflation pipe, the water pumping pipe is connected with a three-way valve by bypassing a water pump wire coil, the inflation pipe is wound on the water pump wire coil, and the other end of the inflation pipe is connected to the central control unit. The central control unit is connected with a multi-parameter detector and a display screen through cables. The three-way valve is connected on the central control unit, and the three-way valve is connected on the multi-parameter detector left side, and the downside of three-way valve is connected with the water sample collector, and the downside of multi-parameter detector is connected with waste water collector.
Further, the three-way valve and the multi-parameter detector are connected through a cable.
Furthermore, the central control unit, the three-way valve, the multi-parameter detector, the display screen, the wastewater collector and the water sample collector are all arranged in the ground controller.
The invention has the beneficial effects that: (1) the sample quality is improved, and the turbidity and volatilization can be reduced by applying low-speed well washing and sampling methods. The turbidity does not interfere with the measurement of physicochemical indexes any more, so that a sample filtering step is not needed, and the sampling and analysis cost is further reduced;
(2) the accuracy and precision of the sample are improved, so that a user can accurately judge the real trend of the physical and chemical indexes of the collected underground water sample, and unnecessary cost of supervision and repeated sampling for preventing sample pollution is avoided;
(3) compared with traditional well washing and sampling at high flow rate, the system is more economical and convenient;
(4) by low-speed sampling, sediment entering the well is reduced, impact of large water pressure on the well wall is avoided, the service life of the well is prolonged, and the need for well maintenance is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an underground water low-speed automatic sampling device.
In the figure: 1. the system comprises a low-speed water pump, 2 water level meters, 3 water pumping pipes, 4 water level meter control cables, 5 air inflation pipes, 6 water level meter wire coils, 7 water pump wire coils, 8 central control units, 9 three-way valves, 10 multi-parameter detectors, 11 display screens, 12 ground controllers, 13 waste water collectors and 14 water sample collectors.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
As shown in fig. 1, the automatic sampling device for underground water at low speed according to the embodiment of the invention comprises a low-speed water pump 1, a water level gauge 2 and a surface controller 12, wherein the low-speed water pump 1 is installed in a water well, and the water level gauge 2 is placed on the water surface. The other end of the water level gauge 2 is connected with a water level gauge control cable 4, the water level gauge control cable 4 is wound on a water level gauge wire coil 6, and the other end of the water level gauge control cable 4 is connected with a central control unit 8. One end of the low-speed water pump 1 is connected with a water pumping pipe 3 and an inflation pipe 5, the water pumping pipe 3 bypasses a water pump wire coil 7 and is connected with a three-way valve 9, the inflation pipe 5 is wound on the water pump wire coil 7, and the other end of the inflation pipe 5 is connected on a central control unit 8. The central control unit 8 is connected with a multi-parameter detector 10 and a display screen 11 through cables. The three-way valve 9 is connected on the central control unit 8, the three-way valve 9 is connected on the left side of the multi-parameter detector 10, the lower side of the three-way valve 9 is connected with a water sample collector 14, and the lower side of the multi-parameter detector 10 is connected with a waste water collector 13. Groundwater is pumped from the well screen at a low flow rate to extract only groundwater samples from the area to be sampled and not the entire volume of the well 1.
In a particular embodiment of the invention, the three-way valve 9 and the multi-parameter detector 10 are connected by a cable.
In one embodiment of the present invention, the central control unit 8, the three-way valve 9, the multi-parameter detector 10, the display screen 11, the waste water collector 13 and the water sampler 14 are all installed in the floor controller 12.
In one embodiment of the invention, groundwater is pumped from a well screen at a low flow rate to extract only groundwater samples from the area to be sampled, rather than from the entire well volume, to minimize disturbance of the water and the effects of the well wash and sampling process on the well and surrounding formation, and to reduce the turbidity of the sample.
In order to facilitate understanding of the above-described technical aspects of the present invention, the above-described technical aspects of the present invention will be described in detail below in terms of specific usage.
In specific use, the automatic low-speed underground water sampling device comprises a low-speed water pump 1, a water level gauge 2 and a ground controller 12, wherein the low-speed water pump 1 is installed in a water well, and the water level gauge 2 is placed on the water surface. The other end of the water level gauge 2 is connected with a water level gauge control cable 4, the water level gauge control cable 4 is wound on a water level gauge wire coil 6, and the other end of the water level gauge control cable 4 is connected with a central control unit 8. One end of the low-speed water pump 1 is connected with a water pumping pipe 3 and an inflation pipe 5, the water pumping pipe 3 bypasses a water pump wire coil 7 and is connected with a three-way valve 9, the inflation pipe 5 is wound on the water pump wire coil 7, and the other end of the inflation pipe 5 is connected on a central control unit 8. The central control unit 8 is connected with a multi-parameter detector 10 and a display screen 11 through cables. The three-way valve 9 is connected on the central control unit 8, the three-way valve 9 is connected on the left side of the multi-parameter detector 10, the lower side of the three-way valve 9 is connected with a water sample collector 14, and the lower side of the multi-parameter detector 10 is connected with a waste water collector 13.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (3)
1. The automatic sampling device of the low speed of underground water, including low-speed water pump (1), the water gage (2) and ground controller (12), characterized by that, the said low-speed water pump (1) is installed in well, the said water gage (2) is placed on the surface of water; the other end of the water level gauge (2) is connected with a water level gauge control cable (4), the water level gauge control cable (4) is wound on a water level gauge wire coil (6), and the other end of the water level gauge control cable (4) is connected with a central control unit (8); one end of the low-speed water pump (1) is connected with a water pumping pipe (3) and an inflation pipe (5), the water pumping pipe (3) bypasses a water pump wire coil (7) and is connected with a three-way valve (9), the inflation pipe (5) is wound on the water pump wire coil (7), and the other end of the inflation pipe (5) is connected with the central control unit (8); the central control unit (8) is connected with a multi-parameter detector (10) and a display screen (11) through cables; three-way valve (9) are connected on central control unit (8), three-way valve (9) are connected multi-parameter detector (10) left side, the downside of three-way valve (9) is connected with water sampler (14), the downside of multi-parameter detector (10) is connected with waste water collector (13).
2. An automatic sampling device of groundwater low speed according to claim 1, characterized in that the three-way valve (9) and the multi-parameter detector (10) are connected by a cable.
3. A low-speed automatic sampling device of underground water according to claim 1, characterized in that the central control unit (8), the three-way valve (9), the multi-parameter detector (10), the display screen (11), the waste water collector (13) and the water sample collector (14) are all installed in the ground controller (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911009618.3A CN110658025A (en) | 2019-10-23 | 2019-10-23 | Underground water low-speed automatic sampling device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911009618.3A CN110658025A (en) | 2019-10-23 | 2019-10-23 | Underground water low-speed automatic sampling device |
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| CN110658025A true CN110658025A (en) | 2020-01-07 |
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| CN201911009618.3A Pending CN110658025A (en) | 2019-10-23 | 2019-10-23 | Underground water low-speed automatic sampling device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112362399A (en) * | 2020-10-28 | 2021-02-12 | 北京欧仕科技有限公司 | Intelligent underground water low-speed well-flushing sampling system and method |
| CN113237530A (en) * | 2021-05-08 | 2021-08-10 | 中国农业大学 | Underground water level monitoring and automatic sampling and storing device and method |
| CN115014873A (en) * | 2022-01-11 | 2022-09-06 | 淮阴师范学院 | Water quality monitoring stratified sampling device |
-
2019
- 2019-10-23 CN CN201911009618.3A patent/CN110658025A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112362399A (en) * | 2020-10-28 | 2021-02-12 | 北京欧仕科技有限公司 | Intelligent underground water low-speed well-flushing sampling system and method |
| CN112362399B (en) * | 2020-10-28 | 2021-08-13 | 北京欧仕科技有限公司 | Intelligent underground water low-speed well-flushing sampling system and method |
| CN113237530A (en) * | 2021-05-08 | 2021-08-10 | 中国农业大学 | Underground water level monitoring and automatic sampling and storing device and method |
| CN115014873A (en) * | 2022-01-11 | 2022-09-06 | 淮阴师范学院 | Water quality monitoring stratified sampling device |
| CN115014873B (en) * | 2022-01-11 | 2023-03-14 | 淮阴师范学院 | Water quality monitoring stratified sampling device |
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