CN220918251U - Replaceable multilayer filter tube for underground water monitoring well - Google Patents
Replaceable multilayer filter tube for underground water monitoring well Download PDFInfo
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- CN220918251U CN220918251U CN202322574375.6U CN202322574375U CN220918251U CN 220918251 U CN220918251 U CN 220918251U CN 202322574375 U CN202322574375 U CN 202322574375U CN 220918251 U CN220918251 U CN 220918251U
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- Prior art keywords
- tube
- filter
- replaceable
- monitoring well
- hollow
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 239000003673 groundwater Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 12
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 2
- 239000010410 layer Substances 0.000 claims 4
- 239000012792 core layer Substances 0.000 claims 3
- 238000001914 filtration Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 239000003344 environmental pollutant Substances 0.000 abstract description 5
- 231100000719 pollutant Toxicity 0.000 abstract description 5
- 230000002776 aggregation Effects 0.000 abstract description 2
- 238000004220 aggregation Methods 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 13
- 239000006004 Quartz sand Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 238000010276 construction Methods 0.000 description 6
- 239000000835 fiber Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000011491 glass wool Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Landscapes
- Filtering Materials (AREA)
Abstract
The utility model relates to a replaceable underground water monitoring well multilayer filter tube, which comprises a plurality of sections of single-section filter tubes (1) which are detachably connected, wherein each single-section filter tube (1) comprises a hollow support tube (11), a melt-blown filter element layer (12) and a filter element hollow protection bracket (13) from inside to outside in sequence; adjacent single section filter tube (1) is through the connection structure detachable connection of fretwork stay tube (11) tip, is equipped with the blind plate in single section filter tube (1) bottom that is located the bottom. Compared with the prior art, the utility model can effectively improve the underground water filtering effect, can realize timely replacement and avoid secondary pollution caused by the aggregation of pollutants in the filter bed.
Description
Technical Field
The utility model relates to the technical field of underground water monitoring, in particular to a replaceable multilayer filter tube of an underground water monitoring well.
Background
In order to effectively complete the site pollution investigation work and protect soil and groundwater environment, groundwater monitoring wells are required to be distributed in the investigated area.
The prior filter pipe of the underground water monitoring well mainly comprises a simple structure consisting of a filter pipe and quartz sand filler. According to the requirements in the technical Specification for monitoring groundwater environment HJ164, the water outlet water sand cleaning of the monitoring well needs to be ensured. In actual work, the turbidity in the monitoring well is high, and the water quality is unstable.
The analysis reasons are mainly characterized in that the existing technology of filtering pipes and quartz sand filling materials has larger defects in a plurality of processes of well completion, well flushing and the like.
1. Because the filling process of quartz sand in a well pipe is not controlled, the quartz sand is influenced by a plurality of factors such as well construction quality, construction personnel proficiency and the like in the construction process, uneven distribution and even 'holes' are very easy to occur, an effective filter bed cannot be formed, and therefore, the filtering effect cannot be achieved.
2. In the area of using for a long time or having higher turbidity of groundwater, too thick filter cakes are formed in the quartz sand filter material to cause filter material blockage, and the filter material in the monitoring well cannot be washed and replaced, so that the filter material blockage causes the need of re-establishing the well.
3. As more pollutants are trapped in the quartz sand filter material, the backflow of the pollutants can be formed after the hydraulic gradient changes, and secondary pollution is caused.
Disclosure of Invention
The utility model aims to provide a replaceable multi-layer filter tube for a ground water monitoring well.
The aim of the utility model can be achieved by the following technical scheme: the replaceable multi-layer filter tube for the underground water monitoring well comprises a plurality of sections of single-section filter tubes which are detachably connected, wherein each single-section filter tube sequentially comprises a hollow support tube, a melt-blown filter element layer and a filter element hollow protection bracket from inside to outside;
Adjacent single section filter tube passes through the connection structure detachable connection of fretwork stay tube tip, and the single section filter tube bottom that is located the bottom is equipped with the blind plate.
Preferably, flanges are arranged at two ends of each hollow supporting tube, and the flanges of two adjacent hollow supporting tubes are detachably connected through bolts and nuts.
Further preferably, an O-shaped sealing ring is arranged between the flanges of the two adjacent hollow support pipes.
Preferably, the length of the single-section filter tube is 1000 mm-1500 mm.
Preferably, a plurality of hexagonal hollow holes are uniformly distributed on the wall of the hollow supporting tube.
Preferably, the melt-blown filter element layer coats the hollowed-out holes on the hollowed-out support tube.
Preferably, the hollow support tube is a UPVC tube or a stainless steel tube with DN 40-DN 50.
Preferably, the melt-blown filter element layer comprises PP melt-blown fibers, PLA melt-blown fibers or glass wool melt-blown fibers which are arranged outside the wall of the hollow supporting tube.
Further preferably, the melt-blown filter element layer is wound on the hollow support tube through a melt-blown process to form a labyrinth type filter pore structure.
Preferably, the number of layers of the melt blown filter element is 10-20 mesh.
Preferably, the thickness of the melt-blown filter element layer is 10-15 mm, and the melt-blown filter element layer is fixed on the outer wall of the hollow supporting tube through the hollow protecting bracket of the filter element.
Preferably, the filter element hollowed-out protection support and the melt-blown filter element are fixed by hot melting, so that the fiber structure of the melt-blown filter element is ensured to be stable.
Preferably, the filter element hollowed-out protective bracket is made of ABS material, and the thickness is 1.8-2.2 mm.
Compared with the prior art, the utility model has the following beneficial effects:
1. The utility model overcomes the defects of the traditional monitoring well, designs a replaceable filter tube to replace quartz sand filler, can effectively improve the underground water filtering effect, can realize timely replacement, and avoids secondary pollution caused by pollutant aggregation in a filter bed.
2. The traditional well construction process of screen pipe opening and quartz sand filling is greatly influenced by site construction, the quartz sand is difficult to uniformly distribute in the well in the process, the possibility of generating filter bed holes is high, and therefore, the underground water turbidity is high and the water quality is unstable. According to the utility model, the efficient melt-blown filter core is distributed in the sieve tube, so that uneven distribution of the filter bed and even generation of holes are avoided, and the filtering effect of underground water in the monitoring well is ensured.
3. The utility model adopts a multistage pipeline flange connection process, and realizes a replaceable operation scheme. The quartz sand in the traditional process cannot be replaced after being filled underground, the well can only be scrapped once the quartz sand filtering gap is blocked, and pollutants accumulated in the quartz sand can be diffused again under the change of underground hydraulic gradient, so that secondary pollution is caused. The utility model can be replaced in time after the filtering effect is reduced, thereby ensuring the effectiveness of the underground water well and avoiding secondary pollution.
4. The filter tube can be assembled and configured freely, and the specification of the filter element can be adjusted according to different use scenes.
5. The filter tube can be recycled, cleaned and maintained and reused, and has certain economic benefit.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an alternative groundwater monitoring well multi-layer filter tube of the utility model;
FIG. 2 is a schematic view of the structure of a single-section filter tube according to the present utility model;
FIG. 3 is a schematic diagram of the wall structure of the hollow support tube of the present utility model;
FIG. 4 is a schematic structural view of a hollow-out protective bracket for a filter element of the utility model;
In the figure: the filter comprises a 1-single-section filter tube, a 11-hollow supporting tube, a 111-flange, a 112-O-shaped sealing ring, a 12-melt-blown filter element layer, a 13-filter element hollow protection support, a 14-blind plate and a 2-outer well tube.
Detailed Description
The utility model will now be described in detail with reference to the drawings and specific examples. The present embodiment is implemented on the premise of the technical scheme of the present utility model, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present utility model is not limited to the following examples.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
Some embodiments of the present utility model are described in detail below with reference to the accompanying drawings. The embodiments described below and features of the embodiments may be combined with each other without conflict.
Example 1
An alternative multi-layer filter tube for a groundwater monitoring well, as shown in figure 1, comprises a plurality of sections of detachably connected single-section filter tubes 1.
As shown in fig. 2, the single-section filter tube 1 is sequentially divided into a hollow support tube 11, a melt-blown filter element layer 12 and a filter element hollow protection bracket 13 from inside to outside. A connecting structure is arranged at the end part of the hollow supporting tube 11, and the detachable connection of the adjacent single-section filter tubes 1 is realized through the connecting structure. And, the filter tube bottom is equipped with blind plate 14, prevents groundwater infiltration from the bottom into the filter tube through unfiltered.
Example 2
The replaceable multilayer filter tube for the underground water monitoring well is characterized in that a flange 111 is arranged at the end part of a hollow supporting tube 11, detachable connection of adjacent single-section filter tubes 1 is realized through the flange 111, bolts and nuts, and an O-shaped sealing ring 112 is arranged between the flanges 111 of the adjacent single-section filter tubes 1. The remainder was the same as in example 1.
Example 3
A replaceable underground water monitoring well multilayer filter tube is shown in fig. 3, hexagonal hollow holes are formed in the wall of a hollow supporting tube 11, and a hollow structure is also adopted on a filter element hollow protecting support 13 as shown in fig. 4. The remainder was the same as in example 2.
Example 4
A replaceable multi-layer filter tube of an underground water monitoring well is arranged in an outer well tube 2 and is of a multi-section connecting structure, the connecting mechanism is a stainless steel flange, a bolt and a nut, and an O-shaped ring seal is arranged between the two filter tube flanges to prevent underground water from entering the filter tube without being filtered.
The bottom of the filter tube is sealed by a blind plate, so that the underground water is prevented from penetrating into the filter tube from the bottom without being filtered.
The flange, the bolt, the nut and the blind plate of the filter tube connecting mechanism are made of stainless steel materials, and the O-shaped ring is made of polytetrafluoroethylene materials.
The length of a single section of the filter tube is 1000 mm-1500 mm.
The single-section filter tube has a three-layer structure.
The inside first layer is the fretwork stay tube for support the structure of whole filter tube, and the pipe wall adopts hexagonal fretwork structure, increases the filtration of groundwater and passes through under the stable prerequisite of guaranteeing filter tube structure.
The first layer of hollow support tube is a UPVC tube or a stainless steel tube with DN 40-DN 50, so that the hollow support tube is ensured not to be broken in the use processes of installation, disassembly and the like.
The second layer is a melt-blown filter element layer, the thickness is 10-15 mm, the filter element material can be customized according to the site situation, and PP, PLA or glass wool and the like can be selected.
The third layer is a filter element protection bracket, the bracket is made of ABS material, the thickness is 2mm, the diameter is adjusted according to the thickness of the filter element layer, and the melt-blown filter element is ensured to be fastened on the hollow support tube. The support adopts hollow out construction, guarantees the passage rate of groundwater.
The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present utility model. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present utility model is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present utility model.
Claims (9)
1. The replaceable multi-layer filter tube for the underground water monitoring well is characterized by comprising a plurality of sections of single-section filter tubes (1) which are detachably connected, wherein each single-section filter tube (1) comprises a hollow support tube (11), a melt-blown filter element layer (12) and a filter element hollow protection bracket (13) from inside to outside in sequence;
adjacent single section filter tube (1) is through the connection structure detachable connection of fretwork stay tube (11) tip, is equipped with the blind plate in single section filter tube (1) bottom that is located the bottom.
2. The replaceable groundwater monitoring well multilayer filter pipe according to claim 1, wherein flanges (111) are arranged at two ends of the hollow support pipes (11), and the flanges (111) of two adjacent hollow support pipes (11) are detachably connected through bolts and nuts.
3. The replaceable groundwater monitoring well multilayer filter pipe according to claim 2, characterized in that an O-ring (112) is arranged between flanges (111) of two adjacent sections of hollow support pipes (11).
4. The replaceable groundwater monitoring well multi-layer filter pipe according to claim 1, wherein the length of the single section filter pipe (1) is 1000 mm-1500 mm.
5. The replaceable groundwater monitoring well multi-layer filter tube according to claim 1, wherein a plurality of hexagonal hollowed holes are uniformly distributed on the tube wall of the hollowed supporting tube (11).
6. The replaceable groundwater monitoring well multilayer filter tube according to claim 1, wherein the melt blown filter core layer (12) covers the hollowed-out holes in the hollowed-out support tube (11).
7. The replaceable groundwater monitoring well multilayer filter tube according to claim 1, wherein the hollowed supporting tube (11) is a UPVC tube or a stainless steel tube with DN 40-DN 50.
8. The replaceable groundwater monitoring well multilayer filter tube according to claim 1, wherein the thickness of the melt-blown filter core layer (12) is 10-15 mm, and the melt-blown filter core layer (12) is fixed on the outer wall of the hollow supporting tube (11) through a filter core hollow protecting bracket (13).
9. The replaceable groundwater monitoring well multilayer filter tube according to claim 1, wherein the filter element hollowed-out protection support (13) is made of ABS material and has a thickness of 1.8-2.2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322574375.6U CN220918251U (en) | 2023-09-21 | 2023-09-21 | Replaceable multilayer filter tube for underground water monitoring well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322574375.6U CN220918251U (en) | 2023-09-21 | 2023-09-21 | Replaceable multilayer filter tube for underground water monitoring well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220918251U true CN220918251U (en) | 2024-05-10 |
Family
ID=90937593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322574375.6U Active CN220918251U (en) | 2023-09-21 | 2023-09-21 | Replaceable multilayer filter tube for underground water monitoring well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220918251U (en) |
-
2023
- 2023-09-21 CN CN202322574375.6U patent/CN220918251U/en active Active
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