CN210071422U - Underground water multilayer undisturbed monitoring system - Google Patents
Underground water multilayer undisturbed monitoring system Download PDFInfo
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- CN210071422U CN210071422U CN201920503525.5U CN201920503525U CN210071422U CN 210071422 U CN210071422 U CN 210071422U CN 201920503525 U CN201920503525 U CN 201920503525U CN 210071422 U CN210071422 U CN 210071422U
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Abstract
The utility model relates to an underground water multilayer undisturbed monitoring system, the monitoring system comprises an underground well, a filling layer, a multilayer water intake device and a multilayer online monitoring device, wherein the filling layer is arranged in the underground well, and the filling layer is sequentially composed of a multilayer filter material layer and a bentonite layer from bottom to top in the underground well; an underground water on-line monitoring probe (9) and an underground water taking probe (8) are arranged at the position of an underground water well to be monitored in parallel, and coarse quartz sand is filled in the underground water on-line monitoring probe (9) and the underground water taking probe (8) from top to bottom, so that the underground water on-line monitoring probe (9) and the underground water taking probe (8) are arranged in the coarse quartz sand layer of each filter material layer. The utility model discloses at same well site of building, build multilayer undisturbed monitoring system, can wash the well fast and take a sample, to different pollution characteristics and hydrogeological conditions, carry out high-efficient, undisturbed multilayer monitoring to polluting groundwater, provide convenient condition for the accurate monitoring of groundwater quality of water.
Description
Technical Field
The utility model provides a method of groundwater multilayer undisturbed monitoring belongs to environmental pollution control and restoration treatment technical field.
Background
The underground water is water existing in rock gaps below the ground, is water in a saturated aquifer below the underground water surface in a narrow sense, is closely related to human beings, and can be developed and utilized as a water source for domestic water, industrial water and farmland irrigation water. However, the quality of underground water is reduced due to the change of natural conditions, the chemical composition, physical properties and biological characteristics of the underground water caused by the changes of the production of the human industry and agriculture and daily life, and the phenomenon of polluted underground water occurs. Once the ground water is polluted, even if the pollution source is completely eliminated, the water quality can be recovered for more than ten years or even several decades.
At present, the national underground water detection network and a large-area monitoring system are basically built, and the overall and regional water quality conditions can be effectively monitored. Along with the development of the field repair and treatment projects in China, the research and repair of various polluted field pollutants on groundwater infiltration directly or through polluted soil are more and more, and compared with groundwater monitoring in China and regions, the groundwater monitoring has the characteristics of small monitoring range, large groundwater quality difference in different regions and depths, large water quality change along with repair and natural attenuation, long-term and continuous monitoring and the like.
At present groundwater monitoring is many to take construction groundwater online or sampling monitoring, and the characteristics of this kind of monitoring are that the collection sample is groundwater surface layer sample usually, are difficult to monitor different degree of depth and bottom sample, if need monitor different degree of depth groundwater, then need build the nest formula monitoring well of several different degree of depth, and it is higher to build the well cost like this. Meanwhile, after the monitoring well is built for a long time, the monitoring well is influenced by surface water, underground water and the like, the on-line monitoring data and the representativeness of a water sample are influenced and need to be eliminated by means of regular well washing and the like, and therefore the operation cost and the monitoring workload are further increased. Therefore, the method for monitoring underground water in a multilayer undisturbed manner is used for realizing the multilayer undisturbed on-line monitoring and sampling of underground water in one well, and can be used for conveniently and quickly washing the well, and the method for monitoring underground water in a multilayer undisturbed manner is particularly important.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a technical problem be at same well construction point, build the undisturbed monitoring system of multilayer, can wash the well fast and sample, to different pollution characteristics and hydrogeological conditions, carry out high-efficient, undisturbed multilayer monitoring to polluting groundwater, provide convenient condition for the accurate monitoring of groundwater quality of water. The utility model has the advantages of easy operation, efficient, with low costs, environmental protection, easily popularization.
In order to meet the requirements of accuracy and economy of underground water multilayer undisturbed performance, the utility model provides an underground water multilayer undisturbed monitoring system, which comprises an underground water well, a filling layer, a multilayer water intake device and a multilayer online monitoring device, wherein the filling layer is arranged in the underground water well, and in the underground water well, the filling layer sequentially consists of a multilayer filter material layer and a bentonite layer from bottom to top; each filter material layer consists of a fine quartz sand layer and a coarse quartz sand layer from bottom to top in turn; the multilayer water taking device comprises a groundwater water taking probe, a water taking conduit and a pump, preferably a peristaltic pump; preferably, the pump is only used in connection with well washing or sampling; one end of the water taking conduit is connected with the underground water taking probe, and the other end of the water taking conduit is connected with the pump; the multilayer online monitoring device comprises an underground water online monitoring probe, a lead, a data transmission line and a data analysis system; one end of the lead and the data transmission line is connected with the underground water online monitoring probe, the other end of the lead and the data transmission line is connected with the data analysis system, and the data analysis system is used for analyzing the monitoring data and periodically charging the underground water online monitoring probe; an underground water on-line monitoring probe and an underground water taking probe are arranged at the position of the underground water well to be monitored in parallel, and coarse quartz sand is filled in the underground water on-line monitoring probe and the underground water taking probe from top to bottom, so that the underground water on-line monitoring probe and the underground water taking probe are arranged in the coarse quartz sand layer of each filter material layer. Preferably, the data analysis system obtains the quality of water condition of the different degree of depth of groundwater through groundwater on-line monitoring probe, when need sample retest or analysis, through pumping water sample, after a period of time, when each layer groundwater appears mixing interference, the start pump washes the well, judges through the online data that groundwater on-line monitoring probe measured and whether washes the well and accomplish.
Wherein, the water taking probe is a stainless steel perforated pipe subjected to antiseptic treatment, the diameter of a hole is 3-6mm, the surface of the stainless steel perforated pipe is coated with two layers of stainless steel nets, and the diameter of the net hole is 0.5-1.0 mm.
The underground water online monitoring and detecting device is cylindrical, the diameter of the underground water online monitoring and detecting device is about 10mm, the length of the underground water online monitoring and detecting device is about 100mm, and the functions of water level, water temperature, conductivity and/or ammonia nitrogen monitoring can be selected according to the characteristics of monitoring items.
Wherein, the casing protective wall is adopted in the drilling process of the underground water well to prevent the formed hole from collapsing.
Wherein the grain diameter of the coarse quartz sand layer is 20-40 meshes, the grain diameter of the fine quartz sand layer is 10-20 meshes, and the thickness of the coarse quartz sand filling layer is maintained to be 0.4-0.8m above and below the filter tube.
The water intake conduit is made of nylon, the multilayer filter material layer is three layers, and the multilayer water intake device and the multilayer on-line monitoring device are three layers. Wherein, multilayer water intaking device and on-line monitoring device can set up according to the monitoring needs, and the number of filling layers is the same with it.
The utility model relates to a groundwater multilayer undisturbed monitoring method, the method adopts foretell system to groundwater multilayer undisturbed monitoring method, a serial communication port, the method step is as follows:
(1) drilling underground water wells;
(2) placing a water taking probe of a multilayer water taking device and a monitoring probe of a multilayer online monitoring device in parallel at a position needing to be monitored in an underground well, placing a multilayer filter material layer of a filling layer in the underground well, and filling coarse quartz sand in each layer needing to be monitored in the underground well, so that the water taking probe and the monitoring probe are both arranged in the coarse quartz sand layer of each filter material layer; filling fine quartz sand in the rest positions of the underground water well, so that each filling layer consists of a fine quartz sand layer and a coarse quartz sand layer from bottom to top in sequence;
(3) connecting a water intake probe to a surface pump using a water intake conduit;
(4) connecting the online probe to a data reading device of a ground data analysis system by using a lead and a data transmission line;
(5) the upper surface of the multi-layer filter material layer is filled with a bentonite layer till the ground;
(6) a well head is provided with a monitoring well box (15);
(7) and hardening the monitoring well ground platform to form a monitoring well ground hardened platform (7), and preferably building the platform at the water well ground by using cement, gravel and bricks.
In order to reach the high efficiency and economic nature requirement of groundwater sample and well-flushing, the utility model relates to a multilayer undisturbed on-line monitoring, water intaking and well-flushing method, the method includes following step:
(1) drilling underground water wells, preferably by mechanical shock drilling;
(2) placing a water taking probe of a multilayer water taking device and a monitoring probe of a multilayer online monitoring device in parallel at a position to be monitored in an underground well, wherein the monitoring probe and the water taking probe are filled with coarse quartz sand from top to bottom, and the rest positions are filled with fine quartz sand; so that each filling layer is respectively composed of a fine quartz sand layer and a coarse quartz sand layer from bottom to top;
(3) connecting the monitoring probe to a data reading device of a surface data analysis system using a wire and a data transmission line, the water intake conduit connecting the water intake probe to a surface pump;
(4) the upper surface of the multi-layer filter material layer is filled with a bentonite layer till the ground;
(5) a well head is provided with a monitoring well box (15); and building a cement table top;
(6) the water quality conditions of different depths of underground water are mastered through a data analysis system, when sampling retesting or analysis is needed, a water sample is taken through a pump (11), after a period of time, when mixed interference occurs to underground water at each layer, the pump is started to wash the well, and whether well washing is completed or not is judged through online data measured by an underground water online monitoring probe.
The utility model discloses a to laying online monitoring facilities to the different degree of depth of groundwater aquifer, the water intaking probe is laid at different positions, can realize the undisturbed on-line monitoring of groundwater multilayer, washes the well and the water intaking as required simultaneously. The positions of the monitoring probe and the water taking probe and the number and the positions of the underground water wells can be adjusted according to the underground water characteristics.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a carry out high-efficient, undisturbed multilayer monitoring to groundwater under different pollution characteristic and the hydrogeological conditions at same position, accessible water intake device on-line sampling and well-flushing simultaneously, greatly reduced the cost of building the well, provide convenient condition for groundwater water quality monitoring, analysis.
The utility model has the advantages of easy operation, with low costs, efficient, environment friendly, easily promote.
Drawings
Fig. 1 is the utility model provides a structural schematic diagram of groundwater multilayer undisturbed monitoring.
The reference numbers in the figures illustrate: 1. the system comprises a field ground level, a ground water level line 2, a ground water level line 3, a ground water layer 4, fine quartz sand 5, coarse quartz sand 6, a bentonite layer 7, a ground hardening platform of a monitoring well 8, a ground water sampling probe 9, a ground water online monitoring probe 10, a lead and a data transmission line 11, a pump, preferably a peristaltic pump 12, a water taking guide pipe 13, a data analysis room 14, data reading equipment 15 and a monitoring well box.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, the system for monitoring underground water in a multilayer undisturbed manner comprises a filling layer, a multilayer online monitoring device and a multilayer water taking device, wherein the filling layer is arranged in an underground water well and sequentially consists of a plurality of filter material layers and a bentonite layer 6 from bottom to top; each filter material layer consists of a fine quartz sand layer 4 and a coarse quartz sand layer 5 from bottom to top in turn; the multilayer online monitoring device comprises an underground water online monitoring probe 9, a lead and data transmission line 10, a data analysis chamber 13 and data reading equipment 14; each layer of water taking device comprises an over-ground water sampling probe 8, a water taking conduit 12 and a peristaltic pump 11; the pump is preferably used for taking water and washing a well; the upper end of the water taking conduit 12 is connected with one end of the underground water sampling probe 8, and the other end of the water taking conduit 12 is connected with the peristaltic pump 11; the upper end of the lead and data transmission line 10 is connected with an underground water online monitoring probe 9, and the other end of the lead and data transmission line 10 is connected with a data reading device 14 in a data analysis chamber 13; the groundwater sampling probe 8 can monitor the indexes on line and can include: indexes such as water level, water temperature, conductivity, ammonia nitrogen and the like; an underground water online monitoring probe 9 and an underground water sampling probe 8 are arranged in an underground water well in parallel, and the underground water online monitoring probe 9 and the underground water sampling probe 8 are filled with coarse quartz sand 5 up and down, so that the underground water online monitoring probe 9 and the underground water sampling probe 8 are arranged in the coarse quartz sand layer 5 of each filter material layer.
A method for undisturbed monitoring of multiple layers of underground water, the method comprising the steps of:
(1) drilling underground water wells, wherein the underground water wells are arranged on the ground level 1, penetrate through the underground water level line 2 and are mostly arranged in the underground water layer 3;
(2) placing an underground water online monitoring probe 9 and an underground water sampling probe 8 in parallel in an underground well, placing a plurality of filter material layers of a filling layer in the underground well, and filling coarse quartz sand 5 into the underground water online monitoring probe 9 and the underground water sampling probe 8 up and down so that the underground water online monitoring probe 9 and the underground water sampling probe 8 are arranged in the coarse quartz sand layer 5 of each filter material layer; filling fine quartz sand 4 in the rest positions of the underground water well, so that each filter material layer is respectively composed of a fine quartz sand layer 4 and a coarse quartz sand layer 5 from bottom to top;
(3) the upper end of a water taking conduit 12 is connected with one end of an underground water sampling probe 8, and the other end of the water taking conduit 12 is connected with a peristaltic pump 11; the upper end of the lead and data transmission line 10 is connected with an underground water online monitoring probe 9, and the other end of the lead and data transmission line 10 is connected with a data reading device 14 in a data analysis chamber 13;
(4) the bentonite layer 6 is filled on the multi-layer filter material layer until reaching the ground;
(5) installing an underground water well box 15 at the wellhead;
(6) the well platform is constructed at the well surface, and the monitoring well surface hardening platform 7 is preferably constructed at the well surface using cement, gravel and bricks.
The underground water multilayer undisturbed monitoring system comprises underground water on-line monitoring and water taking equipment. Drilling is carried out using mechanical shock drilling or other drilling methods for 13.5 m. And the casing protection wall is adopted in the drilling process to prevent the formed hole from collapsing. The underground water well mainly comprises an online monitoring system, a water taking system and a filling layer.
The well pipe of the underground water well is provided with an underground water taking probe 8 and an online monitoring probe 9 from the bottom to the top in sequence, the water taking probe 8 is made of a stainless steel perforated material subjected to corrosion prevention treatment, the pipe length is 0.6m, the pipe diameter is 50mm, the diameter of the perforated hole is 5mm, the surface of the pipe is coated with two layers of stainless steel nets, and the meshes are 0.6 mm. The extraction pipe is made of nylon and has a pipe diameter of 60 mm. The online monitoring probe 9 is a production device of a professional company, is cylindrical, has the diameter of about 10mm and the length of about 100mm, and can selectively have different monitoring functions of water level, water temperature, conductivity, ammonia nitrogen and the like according to the characteristics of monitoring items.
The filling layer is composed of fine quartz sand 4, coarse quartz sand 5 and bentonite layer 6 from bottom to top. The monitoring well further comprises a monitoring well ground hardening platform 7 and a monitoring well box 15 to form the monitoring well. According to the requirement of underground water monitoring, three underground water taking probes 8 and online monitoring probes 9 are arranged at 3m, 6m and 12m below the ground in parallel and are respectively connected with a peristaltic pump 11 and a data reading device 14 in a data analysis chamber 13 through a water taking conduit 12, a lead and a data transmission line 10.
The bottom of the well was initially filled with fine silica sand 4, 0.50 m. And filling coarse quartz sand 5, after filling for 0.50m, arranging an underground water taking probe 8 and an online monitoring probe 9 in parallel, refilling the coarse quartz sand 5 to submerge the underground water taking probe 8 and the online monitoring probe 9, and continuously filling for 0.5 m. The other two underground water taking probes 8 and the online monitoring probe 9 are also arranged according to the above, so that coarse quartz sand is arranged at 0.50m above and below the filter pipe, and fine quartz sand is arranged in other areas. Filling the fine quartz sand to the position 3.0m below the ground, filling bentonite to the ground and installing the monitoring well box 15. The surface hardening platform 7 of the monitoring well is built around the casing by using cement, gravel and bricks.
The utility model discloses a groundwater multilayer does not have disturbance monitoring's method when using, can adjust groundwater monitoring position and layering quantity according to the characteristics and the monitoring demand of place groundwater.
During actual operation, the data reading equipment 14 in the data analysis chamber 13 is used for mastering the water quality conditions of underground water at different depths, if sampling and retesting or analysis are needed, water can be taken from the peristaltic pump 11, after a period of time, the interference of mixing and the like of the underground water at each layer can be realized, the peristaltic pump 11 can be started for well washing, and whether well washing is finished or not is judged through online data.
The utility model discloses do not receive the restriction of above-mentioned example within the scope or its thinking and the utility model discloses technical method such as change, improvement that do not have substantive difference all receives the utility model discloses protect.
Claims (6)
1. A multilayer undisturbed monitoring system for underground water comprises an underground water well, a filling layer, a multilayer water taking device and a multilayer online monitoring device, and is characterized in that the filling layer is arranged in the underground water well, and in the underground water well, the filling layer sequentially consists of a multilayer filter material layer and a bentonite layer (6) from bottom to top; each filter material layer consists of a fine quartz sand layer (4) and a coarse quartz sand layer (5) from bottom to top respectively; the multilayer water taking device comprises a groundwater water taking probe (8), a water taking conduit (12) and a peristaltic pump (11); one end of the water taking conduit (12) is connected with the underground water taking probe (8), and the other end of the water taking conduit (12) is connected with the peristaltic pump; the multilayer online monitoring device comprises an underground water online monitoring probe (9), a lead and data transmission line (10) and a data analysis system; one end of the lead and data transmission line (10) is connected with the underground water online monitoring probe (9), the other end of the lead and data transmission line (10) is connected with the data analysis system, and the data analysis system is used for analyzing the monitoring data and regularly charging the underground water online monitoring probe (9); an underground water on-line monitoring probe (9) and an underground water taking probe (8) are arranged at the position of an underground water well to be monitored in parallel, and coarse quartz sand is filled in the underground water on-line monitoring probe (9) and the underground water taking probe (8) from top to bottom, so that the underground water on-line monitoring probe (9) and the underground water taking probe (8) are arranged in the coarse quartz sand layer of each filter material layer.
2. The system of claim 1, wherein the water intake probe is a stainless steel perforated pipe with a corrosion-resistant treatment, the diameter of the hole is 3-6mm, the surface of the stainless steel perforated pipe is coated with two layers of stainless steel nets, and the diameter of the net hole is 0.5-1.0 mm.
3. The system according to claim 1 or 2, wherein the underground water on-line monitoring probe is cylindrical, has a diameter of 10mm and a length of 100mm, and can select water level, water temperature, conductivity and/or ammonia nitrogen monitoring functions according to the characteristics of monitoring items.
4. The system of claim 1 or 2, wherein a casing retaining wall is used during drilling of the groundwater well to prevent collapse of the borehole.
5. The system as claimed in claim 1 or 2, wherein the coarse quartz sand of the coarse quartz sand layer has a particle size of 20-40 mesh, the fine quartz sand of the fine quartz sand layer has a particle size of 10-20 mesh, and the coarse quartz sand packed layer maintains a thickness of 0.4-0.8m above and below the filter tube.
6. The system of claim 1 or 2, wherein the water intake conduit is made of nylon, the multi-layer filter material layer is three layers, and the multi-layer water intake device and the multi-layer on-line monitoring device are three layers.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920503525.5U CN210071422U (en) | 2019-04-12 | 2019-04-12 | Underground water multilayer undisturbed monitoring system |
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| CN201920503525.5U CN210071422U (en) | 2019-04-12 | 2019-04-12 | Underground water multilayer undisturbed monitoring system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082164A (en) * | 2019-04-12 | 2019-08-02 | 中冶建筑研究总院有限公司 | A kind of underground water multilayer undisturbed monitoring system |
| CN113340659A (en) * | 2021-06-09 | 2021-09-03 | 扬州市职业大学(扬州市广播电视大学) | Environment monitoring river silt sampling device |
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2019
- 2019-04-12 CN CN201920503525.5U patent/CN210071422U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082164A (en) * | 2019-04-12 | 2019-08-02 | 中冶建筑研究总院有限公司 | A kind of underground water multilayer undisturbed monitoring system |
| CN113340659A (en) * | 2021-06-09 | 2021-09-03 | 扬州市职业大学(扬州市广播电视大学) | Environment monitoring river silt sampling device |
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