CN215727016U - Cathodic protection multilayer groundwater monitoring sampling device - Google Patents
Cathodic protection multilayer groundwater monitoring sampling device Download PDFInfo
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- CN215727016U CN215727016U CN202122066545.0U CN202122066545U CN215727016U CN 215727016 U CN215727016 U CN 215727016U CN 202122066545 U CN202122066545 U CN 202122066545U CN 215727016 U CN215727016 U CN 215727016U
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Abstract
The utility model provides a cathodic protection multilayer underground water monitoring and sampling device, which comprises a monitoring well formed by the outer wall of the monitoring well; the monitoring well outer wall inner circle has multichannel sub-monitoring well, and the bottom degree of depth of multichannel sub-monitoring well is different, top opening is the same height. According to the utility model, by utilizing the working principle of a nest type monitoring well, a plurality of sampling tubes are arranged in one monitoring well, each sampling tube corresponds to one aquifer, and a water-stopping partition is arranged between different aquifers, so that the aquifers of the upper layer are prevented from flowing into the aquifers of the lower layer, and the accurate control and monitoring of the water quality of the aquifers are realized; because free chlorine ions and other substances exist in the natural environment, the steel pipe can be subjected to electrochemical corrosion in the natural environment, and in order to effectively avoid the influence of the electrochemical corrosion on the protective outer wall of the steel pipe, the cathode protection principle is utilized, and the zinc strips are utilized to carry out cathode protection on the protective outer wall of the steel pipe.
Description
Technical Field
The utility model relates to a cathodic protection multilayer underground water monitoring and sampling device.
Background
Underground water is buried below the earth surface, is a precious fresh water resource for human beings, and along with the development of the economic society, particularly the increase of industrial production activities, pollutants pass through various forms such as earth surface overflow, natural exchange between the earth surface water and the underground water and the like, and have serious influence and pollution on the underground water around an industrial park; because characteristics such as pollutant infiltration, migration, chemical reaction differ, influence to regional groundwater is different by a wide margin, in order to monitor the quality of water current situation of regional groundwater, present conventional method sets up the groundwater monitoring well respectively to the aquifer of the different degree of depth, and the groundwater quality of water analysis is carried out in the sample, and then judges the influence of pollutant emission to regional different degree of depth groundwater quality of water. This practice results in high construction costs for the monitoring well.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides a cathodic protection multilayer underground water monitoring and sampling device which can accurately control and monitor the quality of water in an aquifer at low cost.
The utility model is realized by the following technical scheme.
The utility model provides a cathodic protection multilayer underground water monitoring and sampling device which comprises a monitoring well formed by the outer wall of the monitoring well; the monitoring well outer wall inner circle has multichannel sub-monitoring well, and the bottom degree of depth of multichannel sub-monitoring well is different, top opening is the same height.
The multiple sub-monitoring wells are all composed of multiple sections.
The multiple sub-monitoring wells are layered according to depth, and a clay water stop section is arranged at a position, opposite to the position of the opening of the upper sub-monitoring well, of any lower sub-monitoring well.
The multiple sub-monitoring wells at least comprise solid pipes, water filter pipes and solid pipes, and gravel is filled on the outer walls of the multiple sub-monitoring wells.
The clay water stop section is connected with the gravel pack.
The top of the multi-path sub monitoring well is higher than the earth surface section beyond the earth surface.
The sub monitoring wells have at least 3 paths.
The monitoring well outer wall is provided with a vertical zinc cathode protection strip and is composed of a steel pipe.
A monitoring well cover is covered on the top end of the outer wall of the monitoring well, and a monitoring well protection cover is arranged above the monitoring well cover.
The utility model has the beneficial effects that: by utilizing the working principle of a nest type monitoring well, a plurality of sampling tubes are arranged in one monitoring well, each sampling tube corresponds to one aquifer, and a water stop partition is arranged between different aquifers, so that the aquifers of an upper layer are prevented from flowing into the aquifers of a lower layer, and the water quality of the aquifers is accurately controlled and monitored; because free chlorine ions and other substances exist in the natural environment, the steel pipe can be subjected to electrochemical corrosion in the natural environment, and in order to effectively avoid the influence of the electrochemical corrosion on the protective outer wall of the steel pipe, the cathode protection principle is utilized, and the zinc strips are utilized to carry out cathode protection on the protective outer wall of the steel pipe.
Drawings
FIG. 1 is a schematic top view of an embodiment of the present invention;
FIG. 2 is a structural comparison of a plurality of sub-monitoring wells of FIG. 1;
fig. 3 is a side view schematic of the structure of fig. 1.
In the figure: 1-solid pipe, 2-water filter pipe, 3-gravel filling, 4-section higher than ground surface, 5-clay water stop section, 6-well cover of monitoring well, 7-outer wall of monitoring well, 8-zinc cathode protection bar and 9-protective cover of monitoring well.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
Example 1
The cathodic protection multilayer underground water monitoring and sampling device shown in figures 1 to 3 comprises a monitoring well formed by a monitoring well outer wall 7; the inner circle of the outer wall 7 of the monitoring well is distributed with a plurality of sub monitoring wells, the depths of the bottoms of the sub monitoring wells are different, and the openings at the tops of the sub monitoring wells are the same height. Generally, in order to protect the reliability and stability of the wellbore, a steel pipe is used as a protective outer wall of the monitoring well.
Example 2
Based on example 1, and each of the multiple sub monitoring wells is composed of multiple sections.
Example 3
Based on embodiment 2, and, the multiplex sub monitoring well is according to the layering of the depth, and arbitrary lower level sub monitoring well is just to being located the position of the sub monitoring well opening part of upper story has clay stagnant water section 5.
Example 4
Based on the embodiment 2, the multi-path sub monitoring wells at least comprise a solid pipe 1, a filter pipe 2 and a solid pipe 1, and the outer walls of the multi-path sub monitoring wells are covered with gravel packs 3.
Example 5
Based on example 3 and example 4, and the clay water stop section 5 is connected to the gravel pack 3.
Example 6
Based on example 2, and the multi-path sub monitoring well has a section 4 above the surface beyond the surface.
Example 7
Based on example 1, and the sub monitoring wells have at least 3 ways.
Example 8
Based on embodiment 1, and, there is vertical zinc cathodic protection strip 8 on monitoring well outer wall 7, and monitoring well outer wall 7 comprises the steel pipe.
Example 9
Based on embodiment 1 to, 7 tops of monitoring well outer wall are covered with monitoring well lid 6, and there is monitoring well safety cover 9 monitoring well lid 6 top.
Example 10
Based on the above embodiment, specifically, the sub-monitoring wells have three ways, which are the first aquifer monitoring well, the second aquifer monitoring well and the third aquifer monitoring well respectively.
During operation:
1. carrying out small-bore exploration and drilling of a monitoring well, coring in a whole hole, preliminarily determining the positions and the depths of an aquifer and a water-resisting layer, and then carrying out hole expansion by using a hole expanding machine;
2. cleaning the monitoring well after drilling is finished, and ensuring that the water quality of the monitoring well in the later period is not influenced by drilling pollutants;
3. connecting a zinc bar cathode protection bar with a steel pipe protection outer wall by using a welding technology, wherein a section of the steel pipe outer wall between the upper part and the lower part of a water-bearing layer adopts a strainer, gravels are filled outside the steel pipe outer wall, and water is stopped between the water-bearing layers by using clay, so that the water-bearing layers are not communicated;
4. the water intake pipes are made of plastic materials, the water intake pipes are bonded in a plum blossom shape to avoid mutual dislocation, the water-containing layer sections of the water intake pipes adopt water filtering pipes (holes or grooves) to ensure that the groundwater of the water-containing layers can enter the water intake pipes, the outside of the water-containing layers is filled with gravels, the water-containing layers are sealed by clay, and the water-containing layers are not communicated;
5. the part above the monitoring well earth's surface adopts the well lid protection, sets up the monitoring well safety cover outside the well lid, and its purpose mainly protects the monitoring well not influenced by atmospheric precipitation, also avoids artificial falling rocks to cause influences such as jam to the monitoring well.
Claims (9)
1. The utility model provides a cathodic protection multilayer groundwater monitoring sampling device, includes the monitoring well that monitoring well outer wall (7) constitute, its characterized in that: the inner ring of the outer wall (7) of the monitoring well is provided with a plurality of sub-monitoring wells to form a plurality of channels, the depths of the bottoms of the sub-monitoring wells are different, and the openings at the tops of the sub-monitoring wells are the same height.
2. The cathodically protected multi-layer groundwater monitoring sampling device of claim 1, wherein: the multiple sub-monitoring wells are all composed of multiple sections.
3. The cathodically protected multi-layer groundwater monitoring sampling device of claim 2, wherein: the multiple sub-monitoring wells are layered according to depth, and a clay water stop section (5) is arranged at a position, opposite to the opening of the upper sub-monitoring well, of any lower sub-monitoring well.
4. The cathodically protected multi-layer groundwater monitoring sampling device of claim 2, wherein: the multiple sub-monitoring wells at least comprise solid pipes (1), water filter pipes (2) and solid pipes (1), and gravel (3) is filled on the outer walls of the multiple sub-monitoring wells.
5. The cathodic protection multilayer groundwater monitoring sampling device according to claim 3 or 4, wherein: the clay water stop section (5) is connected with the filled gravel (3).
6. The cathodically protected multi-layer groundwater monitoring sampling device of claim 2, wherein: the top end of the multi-path sub monitoring well is higher than the ground surface section (4) beyond the ground surface.
7. The cathodically protected multi-layer groundwater monitoring sampling device of claim 1, wherein: the sub monitoring wells have at least 3 paths.
8. The cathodically protected multi-layer groundwater monitoring sampling device of claim 1, wherein: the monitoring well is characterized in that a vertical zinc cathode protection strip (8) is arranged on the outer wall (7) of the monitoring well, and the outer wall (7) of the monitoring well is formed by a steel pipe.
9. The cathodically protected multi-layer groundwater monitoring sampling device of claim 1, wherein: monitoring well lid (6) have been covered on monitoring well outer wall (7) top, there is monitoring well safety cover (9) monitoring well lid (6) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122066545.0U CN215727016U (en) | 2021-08-30 | 2021-08-30 | Cathodic protection multilayer groundwater monitoring sampling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122066545.0U CN215727016U (en) | 2021-08-30 | 2021-08-30 | Cathodic protection multilayer groundwater monitoring sampling device |
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| Publication Number | Publication Date |
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| CN215727016U true CN215727016U (en) | 2022-02-01 |
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| CN202122066545.0U Active CN215727016U (en) | 2021-08-30 | 2021-08-30 | Cathodic protection multilayer groundwater monitoring sampling device |
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| CN (1) | CN215727016U (en) |
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2021
- 2021-08-30 CN CN202122066545.0U patent/CN215727016U/en active Active
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