CN218479812U - Variable layering underground water monitoring well - Google Patents
Variable layering underground water monitoring well Download PDFInfo
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- CN218479812U CN218479812U CN202222586165.4U CN202222586165U CN218479812U CN 218479812 U CN218479812 U CN 218479812U CN 202222586165 U CN202222586165 U CN 202222586165U CN 218479812 U CN218479812 U CN 218479812U
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Abstract
The utility model discloses a groundwater monitoring well of variable layering, its characterized in that: the well casing comprises a white pipe, a sieve pipe and a limiting pipe, wherein the lower end of the white pipe is in threaded connection with the sieve pipe, the lower end of the sieve pipe is in threaded connection with the limiting pipe, and the lower end of the limiting pipe is in threaded connection with the sieve pipe; the plugging device comprises a plugging pipe and a connecting piece, the lower end of the plugging pipe is in threaded connection with the limiting pipe through the connecting piece, a through hole communicated with the inner cavity of the plugging pipe is formed in the connecting piece, the through hole and the plugging pipe have the same inner diameter, and the outer diameter of the plugging pipe is smaller than the inner diameter of the well pipe; and a sealing pipe cover is arranged at the bottom end of the well pipe. The utility model can realize the layered sampling of single well underground water by arranging different quantity of plugging devices; by layered well washing, the well washing efficiency and the well forming quality of the layered monitoring well can be effectively improved; the sampling position can be flexibly set by adjusting the installation position and the number of the plugging devices; the device has the advantages of simple structure, convenient installation, low cost and popularization value.
Description
Technical Field
The utility model relates to a monitoring well, concretely relates to groundwater monitoring well of variable layering.
Background
In the investigation process of the groundwater environment quality, groundwater monitoring wells with different depths are required to be established according to investigation requirements so as to find the pollution depth of pollutants in groundwater.
Cluster monitoring wells and nest monitoring wells are commonly used at present. The cluster monitoring well is a plurality of independent monitoring wells with different depths drilled near a monitoring point according to the sampling and monitoring requirements of different monitoring layers; although the cluster monitoring well is simple in installation process, the number of drilled holes is large, the occupied area is large, and the construction cost is high. The nest type monitoring well is characterized in that a plurality of monitoring pipes with different lengths are distributed to a monitoring position to be detected in a drilling hole respectively, and a plurality of monitoring wells are completed in one drilling hole through layered gravel filling and water stopping, so that the purpose of layered sampling monitoring is achieved; although the nest type monitoring well can reduce the number of drilled holes and save cost, the layered gravel filling and water stopping construction procedures are complex, the closed water stopping around a plurality of monitoring pipes is difficult, the well washing difficulty is high, and different stratums are possibly influenced mutually, so that the monitoring data can be distorted. In addition, no matter the nested monitoring well or the cluster monitoring well is built, once the monitoring well is built, the internal layering is fixed, the water quality of a specific aquifer can only be monitored, and certain flexibility is not provided.
Therefore, aiming at the problems, the underground water monitoring well with variable layering is urgently needed to be provided, so that layered sampling and monitoring can be flexibly carried out in a single well according to monitoring requirements, the well building process is simple, the installation is convenient, and the well washing is convenient.
SUMMERY OF THE UTILITY MODEL
The utility model provides a groundwater monitoring well of variable layering to not enough among the prior art to solve above-mentioned problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the device comprises a well pipe, a plugging device and a sealing pipe cover, wherein the well pipe comprises a white pipe, a sieve pipe and a limiting pipe, the lower end of the white pipe is in threaded connection with the sieve pipe, the lower end of the sieve pipe is in threaded connection with the limiting pipe, and the lower end of the limiting pipe is in threaded connection with the sieve pipe for measuring a next layer of water collecting cavity; the plugging device comprises a plugging pipe and a connecting piece, the lower end of the plugging pipe is in threaded connection with the limiting pipe through the connecting piece, a through hole communicated with the inner cavity of the plugging pipe is formed in the connecting piece, the inner diameter of the through hole is the same as that of the plugging pipe, and the outer diameter of the plugging pipe is smaller than that of the well pipe; and a sealing pipe cover for settling silt is arranged at the bottom end of the well pipe.
In order to optimize the technical scheme, the specific measures adopted further comprise:
furthermore, the limiting pipe comprises a first limiting pipe and a second limiting pipe, and the inner walls of the first limiting pipe and the second limiting pipe are respectively provided with a first internal thread for connecting the connecting piece; the plugging device comprises a first plugging device and a second plugging device, the first plugging device comprises a first plugging pipe and a first connecting piece, and a first external thread matched with the first internal thread of the first limiting pipe is formed in the side wall of the first connecting piece; the second stopper comprises a second stopper pipe and a second connecting piece, and a first external thread matched with the first internal thread of the second limiting pipe is formed in the side wall of the second connecting piece; the inner diameter of the first plugging pipe is larger than the outer diameter of the second plugging pipe.
Furthermore, a second support ring is installed on the inner wall of the second limiting pipe, and a first internal thread used for connecting the connecting piece is formed in the second support ring.
Furthermore, the device also comprises a limiting ring, wherein the limiting ring comprises a first limiting ring and a second limiting ring; the lower end of the first internal thread of the first limiting pipe is provided with a first limiting ring for limiting and fixing the threaded connection of a first connecting piece; and a second limiting ring for limiting and fixing the threaded connection of the second connecting piece is arranged at the lower end of the first internal thread of the second limiting pipe.
Furthermore, the upper end of the through hole of the connecting piece is provided with a mounting ring, and the outer wall of the mounting ring is provided with an external thread which is used for being connected with the inner cavity of the plugging pipe.
Further, still include rubber seal ring, rubber seal ring includes first rubber seal ring and second rubber seal ring, first rubber seal ring cover is in on the collar of first connecting piece to install the up end at first connecting piece, second rubber seal ring cover is in on the collar of second connecting piece to install the up end at the second connecting piece.
Further, the volume expansion rate of the rubber water stop ring is 2 to 3 times.
Further, the inner diameter of the first rubber water stop ring is larger than the outer diameter of the first plugging pipe, and the outer diameter of the first rubber water stop ring is smaller than the inner diameter of the first limiting pipe; the inner diameter of the second rubber water stop ring is larger than the outer diameter of the second plugging pipe, and the outer diameter of the second rubber water stop ring is smaller than the inner diameter of the second limiting pipe.
The utility model has the advantages that:
the utility model can realize the layered sampling of single well underground water by arranging different quantity of plugging devices in the well pipe; the well casing is built firstly, the plugging device is placed after the sediment in the well is washed off fully, and then the well is washed in layers, so that the well washing efficiency and the well forming quality of the layered monitoring well can be effectively improved, more representative samples can be collected, and the vertical pollution condition of underground water can be reflected more truly; by adjusting the installation position and the number of the plugging devices, the sampling position of the underground water can be flexibly set; the monitoring well is simple in structure, convenient to install, low in cost and high in market popularization value.
Drawings
FIG. 1 is an assembly diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the connection structure of the blank pipe and the sieve pipe of the present invention;
FIG. 3 is a schematic view of the sieve tube of the present invention;
fig. 4 is a schematic structural view of a first limiting tube of the present invention;
fig. 5 is a schematic structural view of a first occluder of the present invention;
fig. 6 is a schematic structural view of a second limiting tube of the present invention;
fig. 7 is a schematic structural view of the second occluder of the present invention.
Reference numerals are as follows: 1. a well pipe; 11. a white pipe; 12. a screen pipe; 2. a first occluding device; 21. a first plugging tube; 22. a first rubber water stop ring; 23. a first connecting member; 3. a second occluder; 31. a second plugging tube; 32. a second rubber water stop ring; 33. a second connecting member; 4. a first limit tube; 41. a first limit ring; 5. a second limiting pipe; 51. a second stop collar; 52. a second support ring; 6. a first water collection cavity; 7. a second water collecting cavity; 8. a third water collecting cavity; 9. a mounting ring; 10. and sealing the tube cover.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
It should be noted that, in the present invention, the terms "upper", "lower", "left", "right", "front", "back", etc. are used for the sake of clarity only, and are not used to limit the scope of the present invention, and the relative relationship changes or adjustments may be made without substantial technical changes.
As shown in the attached drawings, the utility model discloses variable layering groundwater monitoring well of embodiment its characterized in that: the well casing 1 comprises a white pipe 11, a sieve pipe 12 and a limiting pipe, the lower end of the white pipe 11 is in threaded connection with the sieve pipe 12, the lower end of the sieve pipe 12 is in threaded connection with the limiting pipe, the lower end of the limiting pipe is in threaded connection with the sieve pipe 12 used for measuring a next water collecting cavity, and the sieve pipe 12 used for measuring the next water collecting cavity can be continuously connected with the sieve pipe 12 through the limiting pipe as required; the plugging device comprises plugging pipes and connecting pieces, the lower ends of the plugging pipes are respectively in threaded connection with the limiting pipes through the connecting pieces, through holes communicated with the inner cavities of the plugging pipes are formed in the connecting pieces, the inner diameters of the through holes and the plugging pipes are the same, and the outer diameters of the plugging pipes are smaller than the inner diameter of the well pipe 1; the bottom end of the well pipe 1 is connected with a sealing pipe cover 10 for settling silt in a threaded manner, so that the silt in the well pipe 1 is settled through the sealing pipe cover 10.
Therefore, the inner cavity space of the well pipe 1 can be divided into two water collecting cavities through the matching of a plugging device and the limiting pipe, and layered measurement is respectively carried out as required; and according to the number of aquifers to be detected, after the lower end of the white pipe 11 is connected with a sieve pipe 12, a combination of a plurality of limiting pipes connected with the sieve pipe 12 is installed according to requirements, and a plugging device is matched to realize the layered arrangement of the multilayer water collecting cavities at different positions. If the aquifer to be detected is only 1 layer, a plugging device is not required to be arranged; if the aquifer to be detected is 2 layers, 1 plugging device is arranged, and the limiting pipe and the plugging device are correspondingly arranged; if the aquifer to be detected is 3 layers, 2 plugging devices are arranged, and the like.
In this embodiment, the limiting pipe includes a first limiting pipe 4 and a second limiting pipe 5, and the inner walls of the first limiting pipe 4 and the second limiting pipe 5 are both provided with first internal threads for connecting the connecting piece; the occluder comprises a first occluder 2 and a second occluder 3, the first occluder 2 comprises a first occluding tube 21 and a first connecting piece 23, and the side wall of the first connecting piece 23 is provided with a first external thread matched with the first internal thread of the first limiting tube 4; the second plugging device 3 comprises a second plugging pipe 31 and a second connecting piece 33, wherein a first external thread matched with the first internal thread of the second limiting pipe 5 is formed in the side wall of the second connecting piece 33; the inner diameter of the first containment tube 21 is greater than the outer diameter of the second containment tube 31. Therefore, the water collecting cavities are arranged in a plurality of layers through the threaded connection between the limiting pipe and the connecting piece.
A second support ring 52 is mounted on the inner wall of the second limiting pipe 5, and a first internal thread for connecting the connecting piece is formed on the second support ring 52. Thereby, the inner diameter of the first internal thread of the first stopper tube 4 located above the second stopper tube 5 is made larger than the inner diameter of the first internal thread of the second stopper tube 5 by the arrangement of the second support ring 52. Thereby ensuring that the second stopper 3 can smoothly pass through the first limiting pipe 4 and is connected with the second limiting pipe 5. When a plurality of aquifers to be tested need to be arranged, after the lower end of the white pipe 11 is connected with a sieve pipe 12, a combination of a plurality of limiting pipes connected with the sieve pipe 12 is installed according to the need; the inner diameters of the limiting pipes are gradually decreased from top to bottom, the outer diameters of the connecting pieces of the plugging device are respectively set corresponding to the inner diameters of the limiting pipes, and therefore the connecting pieces can be in threaded connection with the corresponding limiting pipes.
The device also comprises a limiting ring, wherein the limiting ring comprises a first limiting ring 41 and a second limiting ring 51; the lower end of the first internal thread of the first limiting pipe 4 is provided with a first limiting ring 41 for limiting and fixing the threaded connection of the first connecting piece 23; the lower end of the first internal thread of the second limiting pipe 5 is provided with a second limiting ring 51 for limiting and fixing the threaded connection of the second connecting piece 33. With this through set up the spacing ring at first internal thread's lower extreme, come to carry out spacing fixed to the threaded connection of connecting piece, avoid the unable definite of degree of connection, lead to the connecting piece to screw out first internal thread to increase the stability of connecting.
In this embodiment, the upper end of the through-hole of the connecting piece is provided with a mounting ring 9, and the outer wall of the mounting ring 9 is provided with an external thread for connecting with the inner cavity of the plugging pipe. Thereby facilitating the connection and installation of the plugging pipe and the connecting piece.
The rubber water-stopping ring comprises a first rubber water-stopping ring 22 and a second rubber water-stopping ring 32, the first rubber water-stopping ring 22 is sleeved on the mounting ring 9 of the first connecting piece 23 and is mounted on the upper end face of the first connecting piece 23, and the second rubber water-stopping ring 32 is sleeved on the mounting ring 9 of the second connecting piece 33 and is mounted on the upper end face of the second connecting piece 33. Therefore, the airtightness between the devices is improved by arranging the rubber water stop ring.
The inner diameter of the first rubber water stop ring 22 is slightly larger than the outer diameter of the first plugging pipe 21, and the outer diameter of the first rubber water stop ring 22 is slightly smaller than the inner diameter of the first limiting pipe 4; the inner diameter of the second rubber water stop ring 32 is slightly larger than the outer diameter of the second plugging pipe 31, and the outer diameter of the second rubber water stop ring 32 is slightly smaller than the inner diameter of the second limiting pipe 5. According to design requirements, the rubber water-stopping ring in a dry state does not affect assembly and use of the device, and after the rubber water-stopping ring meets water, the rubber water-stopping ring is respectively tightly attached to the inner wall and the outer wall of an adjacent device after expansion due to the volume expansion rate of 2 to 3 times, so that the airtightness of the device is ensured.
The utility model discloses when using, can carry out the layering according to the actual measurement demand. The setting steps are as follows: the lengths and positions of the blank pipe 11, the screen pipe 12 and the limiting pipe are designed according to the distribution characteristics of the stratum. After drilling a well by using a drilling machine, according to the design requirements, the bottom end of the well pipe 1 which is assembled is provided with the sealing pipe cover 10 and then is placed into a well hole, and the filling material is filled according to the stratum characteristics. And (4) carrying out first well completion and well washing after the well is built, and then sequentially installing the plugging devices to the corresponding limiting pipes. After the installation is successful, after the rubber water stop ring meets the preset expansion rate when meeting water, performing well completion and well washing for the second time, and stopping well washing until the quality of the well washing effluent water is stable. And then, sampling of multiple layers of underground water can be continued according to related sampling specifications. The well washing efficiency and the well forming quality of the layered monitoring well can be effectively improved, more representative samples can be collected, and the vertical pollution condition of underground water can be reflected more truly.
For a land parcel which contains a plurality of aquifers and has a small thickness of a single aquifer, presetting a well pipe 1 with a certain length according to hydrogeological conditions, and then inserting a plugging device to realize the layered sampling of underground water of a single well; for the plots with the same water-bearing layer with the overlarge thickness, in order to find out whether the pollutants in the same water-bearing layer are communicated up and down, the purpose of collecting layered samples or mixed samples in a single well can be realized by additionally installing or taking out a certain number of plugging devices.
In this embodiment, the installation of 3 aquifers to be tested is performed, and the specific steps are as follows: firstly, a preset sieve tube 12, a first limit tube 4, a sieve tube 12, a second limit tube 5 and a sieve tube 12 are sequentially connected with the lower end of a preset white tube 11 in a threaded manner, so that a well pipe 1 is formed; then the well pipe 1 with the sealing pipe cover 10 installed is placed into a drilled well hole and filled with materials; the first plugging pipe 21 and the first connecting piece 23 are connected into a first plugging device 2 in a threaded manner, and the second plugging pipe 31 and the second connecting piece 33 are connected into a second plugging device 3 in a threaded manner; after the well is washed for the first time, the second plugging device 3 which is supposed to be positioned below the first plugging device 2 is in threaded connection with the second limiting pipe 5 through the second connecting piece 33, and then the first plugging device 2 is in threaded connection with the first limiting pipe 4 through the first connecting piece 23. Thereby, a first water collecting cavity 6 is formed between the inner wall of the well pipe 1 and the first stopper 2, a second water collecting cavity 7 is formed between the first stopper 2, the second stopper 3 and the inner wall of the well pipe 1, and a third water collecting cavity 8 is formed between the second stopper 3, the inner wall of the well pipe 1 and the sealing pipe cover 10. Thus forming the layered installation of 3 aquifers to be tested, and carrying out layered sampling according to the requirements respectively.
Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, a plurality of modifications and decorations without departing from the principle of the present invention should be considered as the protection scope of the present invention.
Claims (8)
1. The utility model provides a variable layering groundwater monitoring well which characterized in that: the well casing (1) comprises a white pipe (11), a sieve pipe (12) and a limiting pipe, the lower end of the white pipe (11) is in threaded connection with the sieve pipe (12), the lower end of the sieve pipe (12) is in threaded connection with the limiting pipe, and the lower end of the limiting pipe is in threaded connection with the sieve pipe (12) for measuring a next layer of water collecting cavity; the plugging device comprises a plugging pipe and a connecting piece, the lower end of the plugging pipe is in threaded connection with the limiting pipe through the connecting piece, a through hole communicated with the inner cavity of the plugging pipe is formed in the connecting piece, the inner diameter of the through hole is the same as that of the plugging pipe, and the outer diameter of the plugging pipe is smaller than that of the well pipe (1); and a sealing pipe cover (10) for settling silt is arranged at the bottom end of the well pipe (1).
2. A variably stratified groundwater monitoring well as claimed in claim 1, wherein: the limiting pipe comprises a first limiting pipe (4) and a second limiting pipe (5), and first internal threads for connecting the connecting piece are arranged on the inner walls of the first limiting pipe (4) and the second limiting pipe (5); the plugging device comprises a first plugging device (2) and a second plugging device (3), the first plugging device (2) comprises a first plugging pipe (21) and a first connecting piece (23), and a first external thread matched with the first internal thread of the first limiting pipe (4) is formed in the side wall of the first connecting piece (23); the second plugging device (3) comprises a second plugging pipe (31) and a second connecting piece (33), and a first external thread matched with the first internal thread of the second limiting pipe (5) is formed in the side wall of the second connecting piece (33); the inner diameter of the first blocking pipe (21) is larger than the outer diameter of the second blocking pipe (31).
3. A variably stratified groundwater monitoring well as claimed in claim 2, wherein: a second support ring (52) is mounted on the inner wall of the second limiting pipe (5), and first internal threads used for being connected with the connecting piece are formed in the second support ring (52).
4. A variably stratified groundwater monitoring well as claimed in claim 3, wherein: the device also comprises a limiting ring, wherein the limiting ring comprises a first limiting ring (41) and a second limiting ring (51); the lower end of the first internal thread of the first limiting pipe (4) is provided with a first limiting ring (41) for limiting and fixing the threaded connection of the first connecting piece (23); the lower end of the first internal thread of the second limiting pipe (5) is provided with a second limiting ring (51) used for limiting and fixing the threaded connection of the second connecting piece (33).
5. A variably stratified groundwater monitoring well as claimed in claim 2, wherein: the upper end of the through hole of the connecting piece is provided with a mounting ring (9), and the outer wall of the mounting ring (9) is provided with an external thread which is used for being connected with the inner cavity of the plugging pipe.
6. A variably stratified groundwater monitoring well as claimed in claim 5, wherein: still include the rubber seal ring, the rubber seal ring includes first rubber seal ring (22) and second rubber seal ring (32), first rubber seal ring (22) cover is in on collar (9) of first connecting piece (23) to install the up end at first connecting piece (23), second rubber seal ring (32) cover is in on collar (9) of second connecting piece (33) to install the up end at second connecting piece (33).
7. A variably stratified groundwater monitoring well as claimed in claim 6, wherein: the volume expansion rate of the rubber water stop ring is 2 to 3 times.
8. A variably stratified groundwater monitoring well as claimed in claim 7, wherein: the inner diameter of the first rubber water stop ring (22) is larger than the outer diameter of the first plugging pipe (21), and the outer diameter of the first rubber water stop ring (22) is smaller than the inner diameter of the first limiting pipe (4); the inner diameter of the second rubber water stop ring (32) is larger than the outer diameter of the second plugging pipe (31), and the outer diameter of the second rubber water stop ring (32) is smaller than the inner diameter of the second limiting pipe (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222586165.4U CN218479812U (en) | 2022-09-29 | 2022-09-29 | Variable layering underground water monitoring well |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222586165.4U CN218479812U (en) | 2022-09-29 | 2022-09-29 | Variable layering underground water monitoring well |
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| CN218479812U true CN218479812U (en) | 2023-02-14 |
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| CN202222586165.4U Active CN218479812U (en) | 2022-09-29 | 2022-09-29 | Variable layering underground water monitoring well |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116480343A (en) * | 2023-06-14 | 2023-07-25 | 山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队) | Underground water layering monitoring well and well forming method thereof |
-
2022
- 2022-09-29 CN CN202222586165.4U patent/CN218479812U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116480343A (en) * | 2023-06-14 | 2023-07-25 | 山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队) | Underground water layering monitoring well and well forming method thereof |
| CN116480343B (en) * | 2023-06-14 | 2023-09-05 | 山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队) | Underground water layering monitoring well and well forming method thereof |
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