CN217094981U - Water level lifting device for in-situ underground water multiphase extraction and restoration well - Google Patents
Water level lifting device for in-situ underground water multiphase extraction and restoration well Download PDFInfo
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- CN217094981U CN217094981U CN202220245624.XU CN202220245624U CN217094981U CN 217094981 U CN217094981 U CN 217094981U CN 202220245624 U CN202220245624 U CN 202220245624U CN 217094981 U CN217094981 U CN 217094981U
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Abstract
The application provides a heterogeneous extraction of normal position groundwater restores well water level hoisting device includes: a lift assembly disposed in the extraction well; the equipment assembly comprises a multiphase extraction device and an air compressor for providing positive pressure air. A heterogeneous extraction of normal position groundwater is restoreed well water level hoisting device, through the promotion subassembly that sets up, equipment module, trachea subassembly and valve member, can be in MPE system operation instant observation and the efficiency of aassessment restoration well simultaneously, when restoration well efficiency is not as expected, carry out troubleshooting to the individual restoration well immediately, promote restoration efficiency, avoid artifical dismantlement restoration well in order to observe whether there is gas leakage, silt up the circumstances such as stifled, it is more obvious to saving of manpower in the restoration place of extensive normal position, and can improve when MPE restoration system starts the initial stage, the speed that underground water level leaked down in the middle of the soil layer of compacter, promote restoration system efficiency.
Description
Technical Field
The utility model relates to a groundwater technical field, in particular to heterogeneous extraction of normal position groundwater restores well water level hoisting device.
Background
The MPE repairing technology for in-situ underground water multiphase extraction is one negative pressure process to remove volatile organic pollutant from underground soil and underground water, and has liquid ring vacuum pump to generate vacuum degree of 1 atm, high negative pressure sucking pipe set inside the repairing well to generate high negative pressure and air flow to suck underground water and speed the volatilization and release of volatile organic pollutant adsorbed to soil grains. The pollutants dissolved in the underground water are removed along with the swabbing of the groundwater, the water level is reduced due to the pumping, the pure-phase pollutants in the aeration zone, namely non-aqueous phase liquid and the residual pollutants are exposed, and the pollutants adsorbed in the soil particles are pumped out along with the soil gas, so that the repairing effect of multi-phase (gas phase, dissolved phase and pure phase) extraction is achieved.
The MPE repair well mainly comprises an extraction well and an air suction pipe placed in the extraction well, wherein the extraction well is used for introducing underground water and soil gas under the ground, the air suction pipe introduces negative pressure generated by an MPE system on the ground into the extraction well, the negative pressure enables the underground water and the soil gas under the ground to enter the extraction well through a well screen of the extraction well and be transmitted to secondary pollution prevention and control equipment of the MPE system through the air suction pipe for treatment.
The change of negative pressure in the repair well is a key parameter expressed by the MPE repair system, is used for observing the multiphase pumping efficiency of the extraction well and adjusting the efficiency of the extraction well, however, in order to maintain high negative pressure in the repair well, the change of underground water level can not be directly measured by devices such as a water level gauge and the like in the extraction process, the evaluation of the functionality and the extraction efficiency of a single repair well is difficult, the repair effect is often found to be poor after long-time operation, so that the repair progress is lagged behind, the water level condition in the repair well is mostly estimated by observing the water level change of the surrounding underground water monitoring well when the MPE repair system operates, however, the indirect observation mode cannot provide effective information and possible reasons as the reference of subsequent adjustment when the repair well efficiency is not as expected, and only the repair well can be disassembled to observe the conditions of gas leakage, silting blockage and the like, in addition to the MPE system being temporarily shut down, it also requires a significant amount of manpower to disassemble the tubing, making large scale in situ remediation sites even more impractical.
In addition, because the conditions of high negative pressure and low pressure loss need to be maintained in the repair well, the structural tightness of the repair well is high, and when the MPE repair system is started in the initial stage, soil layer negative pressure resisting the negative pressure of the air suction pipe easily exists in a compact soil layer, so that the efficiency of groundwater water pumping and water level reduction is poor, and the system efficiency is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a heterogeneous recovery well water level hoisting device that extracts of normal position groundwater can effectively solve the problem in the background art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a multiphase extraction and restoration well water level lifting device for in-situ underground water is applied to an extraction well and comprises:
a lift assembly disposed in the extraction well;
the equipment assembly comprises a multiphase extraction device and an air compressor for providing positive pressure air;
the air pipe assembly comprises a first air pipe and a second air pipe;
a valve assembly; the valve assembly is arranged on the air pipe assembly;
the lifting assembly comprises an air suction pipe arranged in the extraction well, one end of the air suction pipe is connected with the multiphase extraction device, and the first air pipe is connected with the air suction pipe through a valve assembly;
the valve component comprises a first valve element, a second valve element, a third valve element for controlling gas and a fourth valve element for controlling positive pressure gas;
the lifting assembly further comprises a negative pressure gauge and a second negative pressure gauge, a positive pressure air pipe connected with a fourth valve is arranged on the air compressor, and the lifting assembly is connected with the air pipe assembly.
The first negative pressure meter is used for connecting an air suction pipe, and the second air suction pipe is used for connecting an extraction well.
Preferably, the other end of the suction pipe is arranged in the extraction well and is arranged in the underground water.
The source of the positive pressure can be switched and selected from the atmospheric pressure or high-pressure air generated by an air compressor according to the requirement.
Preferably, the first valve is arranged at the wellhead above the extraction well, and the first valve is connected with one end of the first air pipe.
Preferably, a connecting air pipe connected with an air suction straw is arranged on the first valve piece, and the other end of the first air pipe is connected with a first negative pressure meter.
Preferably, the second valve is arranged at the wellhead above the extraction well and at one side of the first valve, and the second valve is connected with one end of the second air pipe.
The other end of the second air pipe is connected with a third valve for controlling air, and two groups of air guide pipes are arranged on the third valve.
Preferably, the third valve part is connected with the second negative pressure meter through an air duct, and is connected with the fourth valve part through another air duct group.
Preferably, the third valve and the fourth valve are provided with two groups of control pieces and three groups of air vents, and the fourth valve can be communicated with the outside air by controlling one group of air vents through one group of control pieces.
Atmospheric pressure can be controlled into the valve member number four by the control member.
To sum up, the utility model discloses a following at least one useful technological effect:
through the lifting assembly, the equipment assembly, the air pipe assembly and the valve assembly, the efficiency of the repair well can be observed and evaluated in real time when the MPE system runs, when the efficiency of the repair well is not as expected, individual repair wells can be cleared in real time, the repair efficiency is improved, the condition that whether the repair well is manually disassembled to observe air leakage, clogging and the like is avoided, the labor is saved more remarkably in a large-scale in-situ repair field, the underground water level leakage speed in a compact soil layer can be increased when the MPE repair system is started in the initial stage, the efficiency of the repair system is improved, and the practicability of the whole device is improved.
Drawings
FIG. 1 is an overall structure diagram of the in-situ groundwater multiphase extraction restoration well water level lifting device of the utility model;
FIG. 2 is an enlarged view of the structure A in FIG. 1 of the in-situ groundwater multiphase extraction remediation well water level lifting device of the present invention;
FIG. 3 is an enlarged view of the structure B in FIG. 1 of the lifting device for in-situ groundwater multiphase extraction and remediation well water level of the present invention.
In the figure: 1. a first valve element; 2. a second valve element; 3. a first air pipe; 4. a first negative pressure meter; 5. a second air pipe; 6. a second negative pressure meter; 7. a valve element III; 8. a valve element number four; 9. an air compressor; 10. a multi-phase extraction device; 11. an air suction pipe; 12. an extraction well; 13. an air duct; 14. and (6) a control member.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention. In addition, for the convenience of description, the terms "upper", "lower", "left" and "right" are used to refer to the same direction as the upper, lower, left, right, etc. of the drawings, and the terms "first", "second", etc. are used for descriptive distinction and have no special meaning.
Example 1
Referring to fig. 1-3, a water level lifting device for an in-situ groundwater multiphase extraction and remediation well is applied to an extraction well 12, and comprises:
a lift assembly disposed in the extraction well 12;
the equipment component comprises a multiphase extraction device 10 and an air compressor 9 for providing positive pressure air;
the air pipe assembly comprises a first air pipe 3 and a second air pipe 5;
a valve assembly; the valve component is arranged on the air pipe component;
the lifting assembly comprises an air suction pipe 11 arranged in an extraction well 12, one end of the air suction pipe 11 is connected with the multiphase extraction device 10, and the first air pipe 3 is connected with the air suction pipe 11 through a valve assembly;
the valve component comprises a first valve element 1, a second valve element 2, a third valve element 7 for controlling gas and a fourth valve element 8 for controlling positive pressure gas;
the lifting assembly further comprises a first negative pressure gauge 4 and a second negative pressure gauge 6, a positive pressure air pipe connected with a fourth valve 8 is arranged on the air compressor 9, and the lifting assembly is connected with the air pipe assembly.
When the MPE system generates negative pressure, under the condition that a valve leading to a positive pressure end of a valve 7 for controlling gas is closed and a valve leading to a negative pressure meter 6 is opened, the negative pressure value in the extraction well 12 at present can be known through the negative pressure meter 6, and whether the negative pressure generated by the MPE system is led into a repair well or not can be known through the negative pressure reading value of a negative pressure meter 4.
Through the negative pressure reading value of the second negative pressure meter 6, whether the underground water level surface in the extraction well 12 is close to the depth of the bottom section of the suction pipe 11 can be known, the underground water level is effectively lowered to the target restoration depth, and the removal of multiphase extraction pollutants is realized.
The other end of the suction pipe 11 is arranged in the extraction well 12 and in the ground water.
The first valve part 1 is provided with a connecting air pipe connected with an air suction pipe 11, and the other end of the first air pipe 3 is connected with a first negative pressure meter 4.
The second valve 2 is arranged above the extraction well 12 and at one side of the first valve 1, and the second valve 2 is connected with one end of the second air pipe 5.
The other end of the second air pipe 5 is connected with a third valve 7 for controlling air, and two groups of air guide pipes 13 are arranged on the third valve 7.
The third valve member 7 is connected with the second negative pressure gauge 6 through an air duct 13, and is connected with the fourth valve member 8 through another air duct 13.
The third valve 7 and the fourth valve 8 are provided with two sets of control pieces 14 and three sets of air vents, and the fourth valve 8 can control one set of air vents to be communicated with the outside air through one set of control pieces 14.
When the underground water level relief speed in the repair well needs to be increased, under the condition that a valve leading to a positive pressure end of a valve 7 for controlling gas is opened and a valve leading to a negative pressure meter 6 is closed, a valve leading to an air compressor 9 of a valve 8 for controlling positive pressure gas is opened, high-pressure air can be led into an extraction well 12, downward positive pressure is generated, soil layer negative pressure is counteracted, and underground water level surface descending is accelerated.
In some embodiments, in the absence of an air compressor 9, opening a valve 8 of the fourth type for controlling the positive pressure gas can introduce atmospheric pressure into the extraction well 12, creating a positive downward pressure, counteracting the negative soil pressure, and accelerating the groundwater level descent.
The MPE system generates negative pressure after starting to operate, the negative pressure is led into the repair well through the air suction pipe 11, the negative pressure in the air suction pipe 11 can be known through observing the first negative pressure meter 4 connected with the air suction pipe 11, the negative pressure in the extraction well 12 can be known through the second negative pressure meter 6 connected with the extraction well 12, when the groundwater level is higher than the bottom of the air suction pipe 11, the negative pressure in the extraction well 12 approaches zero, when the groundwater level is lower than the bottom of the air suction pipe 11, the negative pressure in the extraction well 12 rises, the current groundwater precipitation condition can be known through the pressure change of the two negative pressure meters, and whether the repair well starts to perform multiphase simultaneous extraction.
Further, when the MPE system starts to operate in the initial stage, a valve connecting the extraction well 12 and the negative pressure meter can be switched to a positive pressure supply end, and high-pressure air supplied by atmospheric pressure or an air compressor 9 enters the extraction well 12 through an air pipe to generate a downward positive pressure to offset the negative pressure of a soil layer, so that the descending of the ground water level is accelerated.
Through the lifting assembly, the equipment assembly, the air pipe assembly and the valve assembly, the efficiency of the repair well can be observed and evaluated in real time when the MPE system runs, when the efficiency of the repair well is not as expected, individual repair wells can be cleared in real time, the repair efficiency is improved, the condition that whether the repair well is manually disassembled to observe air leakage, clogging and the like is avoided, the labor is saved more remarkably in a large-scale in-situ repair field, the underground water level leakage speed in a compact soil layer can be increased when the MPE repair system is started in the initial stage, the efficiency of the repair system is improved, and the practicability of the whole device is improved.
The foregoing shows and describes the basic principles and principal features of the invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a heterogeneous extraction of normal position groundwater restores well water level hoisting device, is applied to extraction well (12), its characterized in that includes:
a lifting assembly disposed in an extraction well (12);
an equipment assembly comprising a multiphase extraction device (10) and an air compressor (9) providing positive pressure gas;
the air pipe assembly comprises a first air pipe (3) and a second air pipe (5);
a valve assembly; the valve assembly is arranged on the air pipe assembly;
the lifting assembly comprises an air suction pipe (11) arranged in an extraction well (12), one end of the air suction pipe (11) is connected with the multiphase extraction device (10), and the first air pipe (3) is connected with the air suction pipe (11) through a valve assembly;
the valve component comprises a first valve element (1), a second valve element (2), a third valve element (7) for controlling gas and a fourth valve element (8) for controlling positive pressure gas;
the lifting assembly further comprises a first negative pressure gauge (4) and a second negative pressure gauge (6), a positive pressure air pipe connected with a fourth valve piece (8) is arranged on the air compressor (9), and the lifting assembly is connected with the air pipe assembly.
2. The water level lifting device for the in-situ underground water multiphase extraction remediation well according to claim 1, characterized in that: the other end of the suction pipe (11) is arranged in the extraction well (12) and is arranged in the underground water.
3. The water level lifting device for the in-situ underground water multiphase extraction remediation well according to claim 1, characterized in that: the first valve piece (1) is arranged at the wellhead above the extraction well (12), and one end of the first valve piece (1) is connected with one end of the first air pipe (3).
4. The water level lifting device for the in-situ underground water multiphase extraction remediation well according to claim 1, characterized in that: the first valve piece (1) is provided with a connecting air pipe connected with an air suction pipe (11), and the other end of the first air pipe (3) is connected with a negative pressure meter (4).
5. The water level lifting device for the in-situ underground water multiphase extraction remediation well according to claim 1, characterized in that: the second valve (2) is arranged above the extraction well (12) and on one side of the first valve (1), and one end of the second valve (2) is connected with one end of the second air pipe (5).
6. The water level lifting device for the in-situ underground water multiphase extraction remediation well according to claim 1, characterized in that: the other end of the second air pipe (5) is connected with a third valve (7) for controlling air, and two groups of air guide pipes (13) are arranged on the third valve (7).
7. The water level lifting device for the in-situ underground water multiphase extraction remediation well according to claim 6, characterized in that: and the third valve piece (7) is connected with the second negative pressure meter (6) through an air duct (13), and is connected with the fourth valve piece (8) through another air duct (13).
8. The water level lifting device for the in-situ underground water multiphase extraction remediation well according to claim 1, characterized in that: no. three valve members (7) and No. four valve members (8) all are provided with two sets of control piece (14) and three sets of blow vents, No. four valve members (8) accessible a set of blow vent of a set of control piece (14) control and outside air intercommunication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220245624.XU CN217094981U (en) | 2022-01-30 | 2022-01-30 | Water level lifting device for in-situ underground water multiphase extraction and restoration well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220245624.XU CN217094981U (en) | 2022-01-30 | 2022-01-30 | Water level lifting device for in-situ underground water multiphase extraction and restoration well |
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| Publication Number | Publication Date |
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| CN217094981U true CN217094981U (en) | 2022-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220245624.XU Active CN217094981U (en) | 2022-01-30 | 2022-01-30 | Water level lifting device for in-situ underground water multiphase extraction and restoration well |
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| CN (1) | CN217094981U (en) |
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- 2022-01-30 CN CN202220245624.XU patent/CN217094981U/en active Active
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