CN110102565A - The extraction well system with anti-blockage function applied to the extracting of soil multiphase - Google Patents
The extraction well system with anti-blockage function applied to the extracting of soil multiphase Download PDFInfo
- Publication number
- CN110102565A CN110102565A CN201910467566.8A CN201910467566A CN110102565A CN 110102565 A CN110102565 A CN 110102565A CN 201910467566 A CN201910467566 A CN 201910467566A CN 110102565 A CN110102565 A CN 110102565A
- Authority
- CN
- China
- Prior art keywords
- well system
- extraction well
- extracting
- extraction
- soil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/002—Reclamation of contaminated soil involving in-situ ground water treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/005—Extraction of vapours or gases using vacuum or venting
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
Abstract
The present invention discloses a kind of extraction well system with anti-blockage function applied to the extracting of soil multiphase, including extraction well system, the extraction well system includes white pipe, is fixedly connected on the white pipe lower end screen casing, the bottom cover for being fixedly installed on the screen casing bottom, the extraction well system peripheral is equipped with anti-clogging cavity, it is filled with filler between the anti-clogging cavity and the extraction well system, the card slot for fixing extraction tube is provided on the pedestal of the anti-clogging cavity.Extraction well of the invention has multiple filtration system, can postpone the time for extracting blockage, while can be cleaned for different filtration systems, generally improve the service life of extraction tube.
Description
Technical field
The present invention relates to soil multiphase extracting reparation fields more particularly to a kind of anti-applied to having for soil multiphase extracting
Block the extraction well system of function.
Background technique
Multiphase extraction technique (multi-phase extraction, MPE) is current external reparation by volatile organic matter
One of contaminated soil and the major technique of underground water, it usually pass through while extracting the soil gas in underground pollution region,
It is lauched and is separated and handled to ground with nonaqueous phase liquid pollutant (nonqueous phase liquid, NAPL), reach
It controls rapidly and synchronizes the effect for repairing upper earth and underground water pollution.Multiphase extracts (MPE) system usually by multiphase extracting, multiphase
3 main technique parts of separation and pollutant process are constituted.Compared with tradition extracts processing mode, MPE feature most outstanding is just
Be by the way of vacuum or vacuum aided, realize pollutant from underground environment to earth's surface more than migration.
MPE system can be divided into single-pump system and double pump system.Wherein it is dynamic only to provide extracting by vacuum equipment for single-pump system
Power, double pump system are then provided extracting power jointly by vacuum equipment and water pump.Single-pump system structure is generally relatively simple, is suitble to seep
The lower place of permeability, the depth of processing is generally within 10m.Then more flexibly, repairing depth can be with for the operation of double pump system
Greater than 10m, there is well adapting to property to a certain range of water-bearing layer.
Multiphase extraction system is usually made of three multiphase extracting, multi-phase separation, pollutant process main technique parts.It is more
Phase extractor is the core component of MPE system, its effect is the gas and liquid for extracting Polluted area simultaneously, gaseous state,
Water-soluble state and water-insoluble fluid contaminants are drawn into the processing system on ground from underground.
For extraction tube due to contacting with soil, a great problem faced is silt silting.Although existing extraction tube had
Filter system avoids sandstone from entering in extraction tube, but blocking once occurs in addition to replacement filtration system is without other methods.
Summary of the invention
The present invention is easy to block and be difficult to the characteristics of cleaning for extraction tube, designs a kind of compare for traditional extraction tube
It is not easy to blocking but extraction tube external member easy to clean.
The present invention discloses the extraction well system with anti-blockage function applied to the extracting of soil multiphase, including extraction well system
System, the extraction well system include white pipe, the screen casing for being fixedly connected on the white pipe lower end, are fixedly installed on the screen casing bottom
The bottom cover in portion, the extraction well system peripheral is equipped with anti-clogging cavity, between the anti-clogging cavity and the extraction well system
Filled with filler, the card slot for fixing extraction tube is provided on the pedestal of the anti-clogging cavity.
The anti-clogging cavity is preferably interior sieve that aperture is 0.1-1.0 millimeters by internal layer and outer layer be aperture is 1.5-
2.5 millimeters of outer sieve is constituted.
It has from top to bottom been sequentially filled backfill between the anti-clogging cavity and the extraction well system, bentonite, has filled out
Sand.
The interior sieve is provided with the non-woven fabrics of package filler with extraction tube.
The interior sieve is provided with the sealing structure for placing extra non-woven fabrics with extraction tube.
The anti-clogging cavity top, which is provided with, is about 0.5 meter of rubber stopper.
The anti-clogging cavity is preferably made of PVC material.
0.4-0.5 meters of the distance from top soil surface of the anti-clogging cavity.
The present invention has the advantage that
1, extraction well of the invention has multiple filtration system, can postpone the time for extracting blockage, while can be for not
It is cleaned with filtration system, generally improves the service life of extraction tube.
2, the filtration system of extraction tube of the invention is easy to clean and replaces.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is top view of the invention.
Appended drawing reference: 1- rubber stopper, 2- extraction tube, the interior sieve of 3-, 4- anti-clogging cavity, 5- are sieved outside, 6- screen casing, the white pipe of 7-,
8- backfill, 9- bentonite, 10- back-up sand, 11- bottom cover, 12- card slot, 13- non-woven fabrics, the solid pvc material of 14-.
Specific embodiment
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
As shown in Figure 1 and Figure 2, the present invention discloses the extraction well system with anti-blockage function applied to the extracting of soil multiphase
System includes extraction well system and anti-clogging cavity external member (cylindric), and the extraction well system includes white pipe 7, is fixedly connected on
The screen casing 6 of 7 lower end of white pipe, the bottom cover 11 for being fixedly installed on 6 bottom of screen casing, are from top to bottom sequentially filled and white pipe
7 and the outside of screen casing 6 backfill 8, bentonite 9, back-up sand 10.It further include the anti-clogging cavity 4 (material PVC) on the outside of filler,
Inside is the interior sieve 3 that aperture is 0.15 millimeter, and outside is the outer sieve 5 that aperture is 2 millimeters, and 4 top of anti-clogging cavity has rubber
Plug 1.There is the card slot 12 for fixing extraction tube 2 on the pedestal of anti-clogging cavity 4.Between interior sieve 3 and filler and filler and pumping
Mentioning between 2 entirety of pipe has layer of non-woven fabric 13.Well casing is one whole section of pvc pipe, and a part is with slot, a part without cutting
Seam, the part without slot are white pipe (7), and the part with slot is screen casing (6), and the slit width of slot is 0.5~2.0mm
Extraction well core and conventional extraction well are almost the same, for well-known technique in the industry, repeat no more.
Should first place anti-clogging cavity 4 when installation, the effect of outer sieve 5 be weed out in extractive process will with liquid and gas into
The partial size for entering extraction system is greater than 2 millimeters of particle.Simultaneously in the intracavitary effect due to gravity, a part enters the soil of cavity
Particle precipitation further weeds out the particle that partial size is greater than 0.15 millimeter then by interior sieve to cavity bottom.Anti-clogging cavity 4
Top should be at the position apart from 0.4-0.5 meters of soil surface or so, while rubber stopper answers long enough (0.5 meter or so), with
Guarantee the air-tightness of extraction system.
Installation extraction tube 2 in next step, extraction tube 2 and the card slot 12 of 4 bottom of anti-clogging cavity are fixed, extraction tube is avoided
Movement.Position between extraction tube 2 and interior sieve 3 as described in Fig. 2 14 is solid a part inwardly projecting from interior sieve,
It is also the component part of anti-clogging cavity.
Back-up sand is placed on the good non-woven fabrics 13 of a monolith load-bearing capacity, drives non-woven fabrics to be uniformly laid in interior sieve by back-up sand
On the outside of side and extraction tube, there can be the accumulation of a little non-woven fabrics close to 14 position, then successively fill bentonite and backfill.
It is worth noting that, the interior sieve in Fig. 2 near position 14 is not no sieve pore, i.e., arrow locations and there is sieve pore outward,
This is directly entered inside extraction tube from non-woven fabrics accumulation place in order to avoid gas phase and liquid phase do not pass through filtering.
By periodically cutting out the soil above rubber stopper, rubber stopper 1 is opened, inner and outer sieve is scrubbed with long handle brush, reaches
The purpose of dredge blockage must shut rubber stopper after cleaning.When the inside and outside sieve of cleaning is invalid, can be driven by non-woven fabrics filler to
On, it is whole to remove non-woven fabrics and filler, whole renew is carried out later.
Claims (8)
1. being applied to the extraction well system with anti-blockage function of soil multiphase extracting, including extraction well system, the extracting
Well system includes white pipe (7), the screen casing (6) for being fixedly connected on white pipe (7) lower end, is fixedly installed on the screen casing (6)
The bottom cover (11) of bottom, which is characterized in that the extraction well system peripheral is equipped with anti-clogging cavity (4), the anti-clogging cavity
(4) it is filled with filler between the extraction well system, is provided on the pedestal of the anti-clogging cavity (4) for fixed extracting
Manage the card slot (12) of (2).
2. the extraction well system with anti-blockage function according to claim 1 applied to the extracting of soil multiphase, special
Sign is: the anti-clogging cavity (4) is preferably interior sieve (3) that aperture is 0.1-1.0 millimeters by internal layer and outer layer is that aperture is
1.5-2.5 millimeters of outer sieve (5) is constituted.
3. the extraction well system with anti-blockage function according to claim 1 applied to the extracting of soil multiphase, special
Sign is: being from top to bottom sequentially filled backfill (8), swelling between the anti-clogging cavity (4) and the extraction well system
Native (9), back-up sand (10).
4. the extraction well system with anti-blockage function according to claim 1 applied to the extracting of soil multiphase, special
Sign is: the interior sieve (3) and extraction tube (2) are provided with the non-woven fabrics (13) for wrapping up filler.
5. the extraction well system with anti-blockage function according to claim 4 applied to the extracting of soil multiphase, special
Sign is: the interior sieve (3) and extraction tube (2) are provided with the sealing structure (14) for placing extra non-woven fabrics (13).
6. the extraction well system with anti-blockage function according to claim 1 applied to the extracting of soil multiphase, special
Sign is: being provided at the top of the anti-clogging cavity (4) and is about 0.5 meter of rubber stopper (1).
7. the extraction well system with anti-blockage function according to claim 1 applied to the extracting of soil multiphase, special
Sign is: the anti-clogging cavity (4) is preferably made of PVC material.
8. the extraction well system with anti-blockage function according to claim 1 applied to the extracting of soil multiphase, special
Sign is: 0.4-0.5 meters of distance from top soil surface of the anti-clogging cavity (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910467566.8A CN110102565A (en) | 2019-05-31 | 2019-05-31 | The extraction well system with anti-blockage function applied to the extracting of soil multiphase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910467566.8A CN110102565A (en) | 2019-05-31 | 2019-05-31 | The extraction well system with anti-blockage function applied to the extracting of soil multiphase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110102565A true CN110102565A (en) | 2019-08-09 |
Family
ID=67493219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910467566.8A Pending CN110102565A (en) | 2019-05-31 | 2019-05-31 | The extraction well system with anti-blockage function applied to the extracting of soil multiphase |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110102565A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110961444A (en) * | 2019-12-05 | 2020-04-07 | 煜环环境科技有限公司 | Multiphase extraction well system and installation and clean disposal method thereof |
| CN112371711A (en) * | 2020-09-21 | 2021-02-19 | 深圳市南科环保科技有限公司 | Low-permeability soil multiphase extraction equipment and method |
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| CN108314106A (en) * | 2014-12-24 | 2018-07-24 | 环境保护部南京环境科学研究所 | A kind of underground water in-situ remediation method polluted by DNAPL |
| CN109347213A (en) * | 2018-10-29 | 2019-02-15 | 天津大学 | Contactless charging method for oil field well intelligent watering device |
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| CN210816689U (en) * | 2019-05-31 | 2020-06-23 | 天津大学 | Extraction well system with anti-blocking function applied to soil multiphase extraction |
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| JPH07308528A (en) * | 1994-05-18 | 1995-11-28 | Roki Techno:Kk | Filter for cleaning bathtub water |
| JPH09164381A (en) * | 1995-12-15 | 1997-06-24 | Hitachi Plant Eng & Constr Co Ltd | Extraction method for extracting contaminant from contaminated soil |
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| CN110961444A (en) * | 2019-12-05 | 2020-04-07 | 煜环环境科技有限公司 | Multiphase extraction well system and installation and clean disposal method thereof |
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| CN112371711A (en) * | 2020-09-21 | 2021-02-19 | 深圳市南科环保科技有限公司 | Low-permeability soil multiphase extraction equipment and method |
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