CN219622673U - Underground light nonaqueous phase liquid removing device - Google Patents
Underground light nonaqueous phase liquid removing device Download PDFInfo
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- CN219622673U CN219622673U CN202321177532.3U CN202321177532U CN219622673U CN 219622673 U CN219622673 U CN 219622673U CN 202321177532 U CN202321177532 U CN 202321177532U CN 219622673 U CN219622673 U CN 219622673U
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- collecting tank
- liquid
- liquid collecting
- buoyancy adjusting
- guide rod
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Abstract
The utility model provides an underground light nonaqueous phase liquid removing device, which comprises a pontoon, a liquid collecting tank, a connecting hose between the pontoon and the liquid collecting tank for communicating fluids, wherein the upper part of the liquid collecting tank is provided with a sliding guide rod extending along the vertical direction, the pontoon comprises a filtering part and a buoyancy adjusting part connected below the filtering part, the filtering part and the buoyancy adjusting part are configured to be sleeved on the sliding guide rod, so that the pontoon can slide up and down along the sliding guide rod, the liquid collecting tank is communicated with a liquid outlet pipe, the liquid inlet of the liquid collecting tank can be ensured to be always kept near the upper part of an interface between LNAPLs and water by changing the mass of the pontoon, and the LNAPLs rather than groundwater can be accurately extracted, so that the time and the cost for separating and disposing two phases are reduced, and the device has the characteristics of high LNAPLs removing efficiency, miniaturization and capability of removing various LNAPLs.
Description
Technical Field
The utility model relates to the field of light nonaqueous phase liquid removal, in particular to an underground light nonaqueous phase liquid removal device.
Background
When the leakage amount of organic pollutants such as petroleum and benzene series is large, the organic pollutants possibly exist in a free phase form of Light non-aqueous liquid (LNAPLs) after entering the groundwater environment, most of the organic pollutants float on the groundwater surface, and the organic pollutants are further in a dissolved phase and adsorbed phase form in the aquifer through the actions of dissolution, dispersion and the like, so that groundwater pollution is caused. Compared with the dissolved and adsorbed pollutants, the free phase has stronger heterogeneity and aggregation in the aquifer, can be further influenced by soil capillary action, water level fluctuation and the like to lead to the longitudinal and lateral redistribution of the pollution, and the concentration of the contained pollutants is far higher than that of the dissolved and adsorbed pollutants. If the LNAPLs are not completely removed, the residual LNAPLs will continue to release contaminants to the environment for a long period of time, with a significant environmental risk. Therefore, in groundwater remediation, LNAPLs are preferentially removed under conditions that allow for the use of techniques such as multiphase extraction.
However, the multiphase extraction technique extracts LNAPLs together with water, which causes an increase in the amount of contaminated soil and easily causes emulsification of LNAPLs in water, and has the problems of long two-phase separation time, high cost and low efficiency. To efficiently extract the LNAPLs, the downhole extraction devices employed require more accurate extraction of the LNAPLs than groundwater to reduce the time and expense of two-phase separation and disposal.
Disclosure of Invention
Therefore, the utility model aims to provide an underground light non-aqueous liquid removing device which is used for solving the problems of low efficiency of extraction together with water in the technologies of multiphase extraction and the like.
Specifically, the utility model provides the following technical scheme:
in one aspect, the utility model provides an underground light nonaqueous phase liquid cleaning device, which comprises a pontoon, a liquid collecting tank, a connecting hose between the pontoon and the liquid collecting tank for communicating fluids, wherein a sliding guide rod extending along the vertical direction is arranged at the upper part of the liquid collecting tank, the pontoon comprises a filtering part and a buoyancy adjusting part connected below the filtering part, the filtering part and the buoyancy adjusting part are configured to be sleeved on the sliding guide rod, so that the pontoon can slide up and down along the sliding guide rod, and the liquid collecting tank is communicated with a liquid outlet pipe.
Further, the filtering part and the buoyancy regulating part are provided with a central sliding tube, the central sliding tube is sleeved on the periphery of the sliding guide rod, the periphery side of the central sliding tube of the buoyancy regulating part is provided with a cavity for accommodating the counterweight, and the bottom of the buoyancy regulating part is provided with a counterweight filling port communicated with the cavity; the periphery of the filtering part is provided with a filter screen, the lower part of the filtering part is provided with a liquid discharging pipe penetrating through the buoyancy adjusting part, and the inner cavity of the filtering part is communicated with the hose through the liquid discharging pipe.
Specifically, the liquid collecting tank comprises a liquid collecting tank shell, a liquid collecting tank liquid outlet pipe and a liquid collecting tank liquid inlet pipe, wherein the liquid collecting tank liquid inlet pipe is connected with the hose, the liquid collecting tank liquid outlet pipe is connected with the liquid outlet pipe, and the upper part of the liquid collecting tank shell is connected with a sliding guide rod.
As the preferable scheme, the counterweight filling port is provided with a plug, so that the counterweight filling port can be conveniently opened and closed.
Preferably, the counterweight is quartz sand.
Further, the buoyancy adjusting part side is connected with an anti-rotation plate, and the anti-rotation plate is clamped with the liquid outlet pipe.
Further, the floating pontoon further comprises a first centering device, wherein the first centering device is arranged at the top of the sliding guide rod and is positioned above the floating pontoon.
Further, the device also comprises a second centering device, and the second centering device is arranged on the periphery of the liquid collecting tank.
Further, the first centering device is provided with a lifting lug.
Further, the hose spiral disc is provided on the outer peripheral side of the slide guide rod.
Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:
the liquid inlet of the filtering part of the pontoon can be accurately kept at a set position above the interface between the LNAPLs and water by adjusting the counterweight of the pontoon, so that the limit of the set position is close to the interface, and the LNAPLs can be extracted as much as possible.
The LNAPLs with various densities are adapted by adjusting the amount of quartz sand filled in the pontoon.
The installation depth of the underground light non-aqueous liquid removing device can be adjusted according to the depth of the initial water level through the lifting lug at the upper part of the first centering device.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is evident that the drawings in the following description are only some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a schematic diagram of a downhole light nonaqueous phase liquid removal device according to the present utility model;
FIG. 2 is a schematic illustration of a buoy of a downhole light nonaqueous phase liquid removal device according to the present utility model;
FIG. 3 is a schematic diagram of a liquid collection tank of a downhole light nonaqueous phase liquid removal device of the present utility model.
Detailed Description
Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the described embodiments are only some, but not all, of the embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It will be appreciated by those of skill in the art that the following specific embodiments or implementations are provided as a series of preferred arrangements of the present utility model for further explanation of the specific disclosure, and that the arrangements may be used in conjunction or association with each other, unless it is specifically contemplated that some or some of the specific embodiments or implementations may not be associated or used with other embodiments or implementations. Meanwhile, the following specific examples or embodiments are merely provided as an optimized arrangement, and are not to be construed as limiting the scope of the present utility model.
In one embodiment, as shown in fig. 1, a downhole light non-aqueous liquid removal device of the present utility model includes a pontoon 1, a liquid collection tank 2, a hose 3, a sliding guide bar 4, a liquid discharge pipe 5, a first centering device 6, and a second centering device 7.
As shown in FIG. 2, the pontoon 1 comprises a buoyancy adjusting portion 1-1, a filtering portion 1-2, a liquid discharging pipe 1-3, a counterweight 1-4, a counterweight filling port 1-5, an anti-rotation plate 1-6 and a central sliding pipe 1-7. The buoyancy adjusting portion 1-1 has a sealed structure, and the buoyancy adjusting portion 1 floats on the liquid surface by buoyancy. The filtering part 1-2 is arranged above the buoyancy adjusting part 1-1, and a filter screen is arranged on the periphery of the filtering part 1-2 and used for preventing large-particle-size foreign matters in the liquid from entering the liquid discharging pipe 1-3 and preventing the blockage. The lower part of the filtering part 1-2 is provided with a downcomer passing through the buoyancy regulating part 1-1, through which light non-aqueous liquid (LNAPLs) flows into the liquid collection tank 2 in fig. 1 under the action of gravity. The balance weight 1-4 is filled in the pontoon 1-1,
in a specific embodiment, the counterweight is quartz sand, and the specific gravity of the pontoon 1 can be adjusted by changing the filling amount of the quartz sand according to the density difference of the LNAPLs, so that the liquid inlet of the filtering part 1-2 of the pontoon 1 is accurately maintained at a set position above the interface between the LNAPLs and water as shown in FIG. 1.
The counterweight filling port 1-5 is arranged at the bottom of the buoyancy adjusting part 1-1 and is sealed by a plug, so that the counterweight 1-4 can be filled by opening, and the sealing can be kept after filling. The anti-rotation plate 1-6 is arranged on the side surface of the buoyancy adjusting part 1-1, is clamped and limited with the liquid outlet pipe 5, and is used for preventing the floating pontoon 1 from rotating to cause the winding of the hose 3. The central sliding tube 1-7 is arranged on the pontoon and is used for positioning the pontoon 1 at the center of the well pipe, preventing the pontoon 1 from being clamped on the well wall and providing the freedom degree of sliding up and down so as to adapt to the change of the liquid level in the well.
As shown in fig. 3, the liquid collecting tank 2 comprises a liquid collecting tank shell 2-1, a liquid collecting tank liquid outlet pipe 2-2 and a liquid collecting tank liquid inlet pipe 2-3. The lower end of the liquid collecting tank liquid outlet pipe 2-2 is close to the bottom of the liquid collecting tank shell 2-1, the other end extends out of the liquid collecting tank shell 2-1 and is connected with the liquid outlet pipe 5, one end of the liquid collecting tank liquid inlet pipe 2-3 extends into the liquid collecting tank shell 2-1, and the other end is connected with the hose 3.
The top of the sliding guide bar 4 is provided with a first centering device 6, the first centering device 6 being located above the pontoon, so that both the pontoon 1 and the sliding guide bar 4 are mounted centrally in the well.
The second centering means 7 are provided on the outer circumference of the tank housing 2-1 to center the tank 2 in the well. The outer edge of the second centering device 7 is provided with a notch, because liquid is arranged in the well, the outer edge of the second centering device 7 is very close to the well wall when the device rises and falls, water can be blocked to generate very large resistance, the operation is not easy, and the notch is increased, namely, the notch is used for reducing the resistance when the device rises and falls.
As shown in fig. 1, the entire downhole light nonaqueous phase liquid removal device may be suspended to a suitable depth based on the location of the LNAPLs interface with water in the well by a rope attached to the shackle 6-1 of the first centering device 6 so that the shackle 6-1 is generally at a location above the LNAPLs interface with water. The downhole light nonaqueous phase liquid removal device can be installed centrally in the well by means of the first and second centering devices 6, 7 and the sliding guide rod 4 connected therebetween. According to LNAPLs with different densities, the set position of the liquid inlet of the filtering part 1-2 above the interface between the LNAPLs and the water is adjusted by adjusting the amount of the balance weights 1-4 (such as quartz sand) in the buoyancy adjusting part 1-1, so that the limit of the set position is close to the interface, and the LNAPLs are extracted as much as possible. Under the action of gravity, LNAPLs flow through the filter part 1-2, the liquid discharging pipe 1-3 and the hose 3 through the filter screen, and flow into the liquid collecting tank 2 through the liquid collecting tank liquid inlet pipe 2-3 on the liquid collecting tank 2. When the interface liquid level in the well changes, the buoyancy adjusting part 1-1 slides up and down along the sliding guide rod 4 along with the change of the liquid level to drive the filtering part 1-2 to slide up and down, so that the liquid inlet of the filtering part 1-2 is ensured to be always at a position set above the interface of the LNAPLs and water. When the pontoon 1 slides up and down, the flexible hose 3 can be adjusted in a self-adaptive manner, the position of the liquid inlet of the filtering part 1-2 is not influenced, and the spiral disc of the hose 3 is arranged on the outer peripheral side of the sliding guide rod, so that winding is avoided.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (10)
1. An underground light nonaqueous phase liquid removing device is characterized in that: the floating device comprises a floating drum (1), a liquid collecting tank (2), a connecting hose (3) between the floating drum and the liquid collecting tank is used for communicating fluid of each other, a sliding guide rod (4) extending along the vertical direction is arranged on the upper portion of the liquid collecting tank, the floating drum comprises a filtering portion (1-2) and a buoyancy adjusting portion (1-1) connected to the lower portion of the filtering portion, the filtering portion and the buoyancy adjusting portion are configured to be sleeved on the sliding guide rod, the floating drum can slide up and down along the sliding guide rod, and the liquid collecting tank (2) is communicated with a liquid outlet pipe (5).
2. A downhole light non-aqueous liquid removal device as defined in claim 1, wherein: the utility model discloses a buoyancy adjusting device, including buoyancy adjusting part, filtering part and buoyancy adjusting part, wherein the filtering part is equipped with center slide pipe (1-7), center slide pipe cover locates the slip guide bar periphery, the center slide pipe periphery side of buoyancy adjusting part disposes the cavity that holds counter weight (1-4), buoyancy adjusting part bottom sets up counter weight filling mouth (1-5) with above-mentioned cavity intercommunication, filtering part (1-2) periphery sets up the filter screen, filtering part lower part sets up drain pipe (1-3) that pass buoyancy adjusting part, the inner chamber of filtering part communicates with above-mentioned hose (3) through drain pipe (1-3).
3. A downhole light non-aqueous liquid removal device according to claim 2, wherein: the liquid collecting tank (2) comprises a liquid collecting tank shell (2-1), a liquid collecting tank liquid outlet pipe (2-2) and a liquid collecting tank liquid inlet pipe (2-3), wherein the liquid collecting tank liquid inlet pipe is connected with the hose (3), the liquid collecting tank liquid outlet pipe is connected with a liquid outlet pipe (5), and the upper part of the liquid collecting tank shell is connected with a sliding guide rod (4).
4. A downhole light non-aqueous liquid removal device as defined in claim 3, wherein: the counterweight filling port (1-5) is provided with a plug.
5. The downhole light non-aqueous liquid removal device of claim 4, wherein: the counter weight (1-4) is quartz sand.
6. The downhole light non-aqueous liquid removal device of claim 5, wherein: the side surface of the buoyancy adjusting part is connected with an anti-rotation plate (1-6), and the anti-rotation plate (1-6) is clamped and limited with the liquid outlet pipe (5).
7. The downhole light non-aqueous liquid removal device of claim 6, wherein: the floating pontoon further comprises a first centering device (6), wherein the first centering device is arranged at the top of the sliding guide rod (4) and is positioned above the floating pontoon.
8. The downhole light non-aqueous liquid removal device of claim 7, wherein: the device also comprises a second centering device (7), and the second centering device (7) is arranged on the periphery of the liquid collecting tank.
9. The downhole light non-aqueous liquid removal device of claim 8, wherein: the first centering device (6) is provided with a lifting lug.
10. The downhole light non-aqueous liquid removal device of claim 9, wherein: the spiral disc of the hose (3) is arranged on the outer periphery side of the sliding guide rod.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2023101736331 | 2023-02-28 | ||
| CN202310173633.1A CN115898334A (en) | 2023-02-28 | 2023-02-28 | Underground light non-aqueous phase liquid removing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219622673U true CN219622673U (en) | 2023-09-01 |
Family
ID=86479126
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310173633.1A Pending CN115898334A (en) | 2023-02-28 | 2023-02-28 | Underground light non-aqueous phase liquid removing device |
| CN202321177532.3U Active CN219622673U (en) | 2023-02-28 | 2023-05-16 | Underground light nonaqueous phase liquid removing device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310173633.1A Pending CN115898334A (en) | 2023-02-28 | 2023-02-28 | Underground light non-aqueous phase liquid removing device |
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| CN (2) | CN115898334A (en) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3992839B2 (en) * | 1998-05-29 | 2007-10-17 | ヤマハ発動機株式会社 | Levitating device |
| DE29904812U1 (en) * | 1999-03-09 | 1999-09-23 | Adam Karl Ludwig | Compact invention for the continuous removal of liquid light phases from groundwater |
| CN102583645A (en) * | 2012-03-28 | 2012-07-18 | 西南铝业（集团）有限责任公司 | Floating oil absorbing device |
| CN205287721U (en) * | 2016-01-06 | 2016-06-08 | 东莞市信松机电有限公司 | Counter weight formula flotation pontoon for water oil separating |
| CN205419852U (en) * | 2016-03-17 | 2016-08-03 | 大连建华污泥处理有限公司 | Adjustable float -type waste oil collecting device |
| CN205953597U (en) * | 2016-08-26 | 2017-02-15 | 王剑锋 | Oil collecting device with adjustable |
| CN109879369B (en) * | 2019-04-09 | 2023-12-05 | 北京沃太斯环保科技发展有限公司 | Underground oil slick collecting device |
| CN110627263A (en) * | 2019-10-28 | 2019-12-31 | 中冶南方都市环保工程技术股份有限公司 | Underground water light non-aqueous phase liquid pollutant cleaning system |
| CN210981442U (en) * | 2019-12-24 | 2020-07-10 | 湖南军信环保股份有限公司 | Telescopic floating rod liquid level meter |
| CN113044918A (en) * | 2021-03-04 | 2021-06-29 | 北京高能时代环境技术股份有限公司 | A equip for collecting NAPLs in groundwater |
| CN214780909U (en) * | 2021-06-09 | 2021-11-19 | 合肥美诗捷食品有限公司 | Oil-water separator adjusting device based on intelligent control |
| CN216918692U (en) * | 2022-03-21 | 2022-07-08 | 中海石油（中国）有限公司天津分公司 | Oil collecting system |
-
2023
- 2023-02-28 CN CN202310173633.1A patent/CN115898334A/en active Pending
- 2023-05-16 CN CN202321177532.3U patent/CN219622673U/en active Active
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| CN115898334A (en) | 2023-04-04 |
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