CN112727455A

CN112727455A - Device for rapidly washing underground water

Info

Publication number: CN112727455A
Application number: CN202011534008.8A
Authority: CN
Inventors: 许锐杰; 陈克复; 黄树杰; 郑小萍
Original assignee: Guangdong Beiyuan Test Technology Co ltd; South China University of Technology SCUT
Current assignee: Guangdong Beiyuan Test Technology Co ltd; South China University of Technology SCUT
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-04-30
Anticipated expiration: 2040-12-22
Also published as: CN112727455B

Abstract

The invention relates to the technical field of underground water sampling detection, and discloses an underground water rapid well washing device which is used for sampling underground water in a sampling well and comprises a first pipe, a second pipe, a sample box and a pump body; the first tube has a top end and a bottom end, the bottom end for immersion in groundwater, the bottom end being closed; the second pipe is used for being immersed in underground water; the second tube has a first end and a second end, the first end is communicated with the first tube, and the second end extends in a direction away from the bottom end; the sample case is connected on the top, and the pump body is used for driving groundwater to flow into in the sample case through second pipe and first pipe in proper order. Compared with the existing well washing device with a high pump body speed, the well washing device is not easy to act on solid particles precipitated at the bottom of the sampling well, and the sampling quality is high; the pumping speed of the pump body can be set in a higher state, the pumping is rapid, and the groundwater sampling speed is high.

Description

Device for rapidly washing underground water

Technical Field

The invention relates to the technical field of underground water pollutant sampling and detection, in particular to a device for quickly washing a well by underground water.

Background

Well washing refers to sampling contaminated groundwater to determine the contamination level of the groundwater.

At present, during well washing, a well pipe is stretched into a polluted underground water body, and a pump is adopted to suck the polluted underground water body. When the well is washed, if the speed of the pump is higher, the well washing speed is high, but the disturbance degree to the water body is large, pollutants are transferred, solid particles at the bottom of the well easily enter the well pipe, the quality of a sampled sample is low, and the sampled sample cannot represent the polluted water body; if the speed of the pump is low, the disturbance to the water body is small during well washing, but the sampling speed is low, the consumed time is long, and the environmental treatment resistance is greatly increased.

Disclosure of Invention

The purpose of the invention is: the underground water rapid well washing device is high in well washing speed and sample quality.

In order to achieve the purpose, the invention provides a device for rapidly washing a well by underground water, which is used for sampling the underground water in a sampling well and comprises a first pipe, a rectifying mechanism, a second pipe, a sample box and a pump body; the first tube having a top end and a bottom end for immersion in the groundwater, the bottom end being closed; the rectifying mechanism comprises a rectifying piece and a mounting seat, the rectifying piece and the mounting seat are respectively arranged in the first pipe, and the rectifying piece is arranged on the mounting seat; the second pipe is for being submerged in the groundwater; the second tube having a first end in communication with the first tube and a second end extending away from the base end; the sample box is connected to the top end, and the pump body is used for driving the groundwater to flow into the sample box through the second pipe and the first pipe in sequence.

Further, the second pipe is provided with a plurality of pipes; the plurality of second tubes are arranged at intervals along the extending direction of the first tube.

Further, the first end is formed with a first opening communicating with the first pipe, and the second end is formed with a second opening for communicating with the groundwater; the second opening has a cross-section larger than the cross-section of the first opening.

Further, the first opening and the second opening are both circular openings.

Further, the axis of the first pipe is set as a first axis, a straight line passing through the dots of the first opening and the dots of the second opening is set as a second axis, and an acute angle formed between the first axis and the second axis is a first preset included angle; the first predetermined included angle is in the range of 45-80 degrees.

Further, the first predetermined included angle is 60 °.

Further, the end face of the second end is located on a predetermined plane, an acute angle formed between the predetermined plane and the first axis is a second predetermined included angle, and the second predetermined included angle ranges from 10 degrees to 45 degrees.

Further, the second predetermined included angle is 60 °.

Further, the pump body is arranged in the first pipe, a communication position of the first end and the first pipe is a preset position, and the pump body is located between the top end and the preset position.

Further, the plurality of rectifying pieces are arranged and extend along the conveying direction of the first pipe respectively; setting the axis of the first pipe as a first axis, wherein the mounting seat is positioned on the first axis, one side of each of the plurality of commutator segments is connected with the mounting seat, the other side of each of the plurality of commutator segments is connected to the inner wall of the first pipe, and the plurality of commutator segments are annularly arranged along the annular direction of the first pipe at intervals; the mount is downstream of the pump body in a transport direction of the first tube.

Compared with the prior art, the device for rapidly washing the well by underground water has the beneficial effects that:

according to the device for rapidly washing the well by using the underground water, when the device works, the bottom end of the first pipe is inserted into the sampling well, so that the bottom end, the first end and the second end of the first pipe are all immersed in the underground water; the pump body is started, the pump body pumps underground water, the underground water firstly enters the second pipe through the second end and then enters the first pipe through the first end, and the underground water is sampled after being pumped to the sample box connected to the top end in the first pipe, so that the subsequent detection of the pollution degree of the underground water is facilitated. In the embodiment, the second end extends in a direction away from the bottom end, during pumping, underground water above the second end can more easily enter the second pipe under the action of gravity, and underground water below the second end can not easily enter the second pipe under the action of gravity, so that disturbance to a water body below the second end is small during pumping; and secondly, compare in the lower well washing device of current pump body speed, because the water disturbance to being in the second end below is less, the pumping speed of the pump body of this embodiment can set up at higher state, and the suction is rapid, and groundwater sampling speed is fast.

Drawings

FIG. 1 is a cross-sectional view of an apparatus for rapid groundwater well washing according to an embodiment of the present invention.

Fig. 2 is a sectional view taken along a line a-a in fig. 1 of an apparatus for rapidly washing a well with groundwater according to an embodiment of the present invention.

Fig. 3 is an enlarged view at B of fig. 1 of the apparatus for rapid washing of groundwater according to an embodiment of the present invention.

In the figure, 1, a first tube; 11. a top end; 12. a bottom end; 13. a first axis; 2. a second tube; 21. a first end; 22. a second end; 23. a second axis; 24. a predetermined plane; 3. a pump body; 4. a mounting seat; 5. a commutator segment; 6. and (4) a sample box.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1 to 3, a device for rapidly washing a well by underground water according to a preferred embodiment of the present invention is used for sampling underground water in a sampling well, and comprises a first pipe 1, a rectifying mechanism, a second pipe 2, a sample tank 6 and a pump body 3; the first pipe 1 has a top end 11 and a bottom end 12 for immersion in groundwater, the bottom end 12 being closed; the rectifying mechanism comprises a rectifying piece 5 and a mounting seat 4, the rectifying piece 5 and the mounting seat 4 are both arranged in the first pipe 1, and the second pipe 2 is used for being immersed in the underground water; the second tube 2 has a first end 21 and a second end 22, the first end 21 being in communication with the first tube 1, the second end 22 extending away from the bottom end 12; the sample box 6 is connected to the top end 12, and the pump body 3 is used for driving the groundwater to sequentially pass through the second pipe 2 and the first pipe 1 and flow into the sample box 6.

In the above embodiment, in operation, the bottom end 12 of the first pipe 1 is inserted into the sample well, so that the bottom end 12, the first end 21 and the second end 22 of the first pipe 1 are all immersed in the groundwater; the pump body 3 is started, the pump body 3 pumps underground water, the underground water firstly enters the second pipe 2 through the second end 22, then enters the first pipe 1 through the first end 21, and is pumped to the sample box 6 connected to the top end 11 in the first pipe 1, the sampling of the underground water is completed, and the subsequent detection of the pollution degree of the underground water is convenient. In this embodiment, the second end 22 extends in a direction away from the bottom end 12, during pumping, the groundwater above the second end 22 can more easily enter the second pipe 2 under the action of gravity, and the groundwater below the second end 22 can not easily enter the second pipe 2 under the action of gravity, so that the disturbance to the water body below the second end 22 during pumping is small, and on the one hand, compared with the existing well washing device with a high speed of the pump body 3, the embodiment can not easily act on solid particles deposited at the bottom of the sampling well, the solid particles can not easily enter the second pipe 2, and the sampling quality is high; secondly, compare in the lower well-flushing device of current pump body 3 speed, because the water disturbance to being in the second end 22 below is less, therefore the pumping speed of the pump body 3 of this embodiment can set up in higher state, and the suction is rapid, and groundwater sampling speed is fast.

Specifically, in one embodiment, a detection mechanism for detecting the degree of contamination of the groundwater is provided in the sample tank 6.

Preferably, the first end 21 of the second tube 2 is attached to the first tube 1 near the bottom end 12.

Specifically, in one embodiment, referring to fig. 1-3, the second tube 2 is provided with a plurality of tubes; the plurality of second tubes 2 are provided at intervals along the extending direction of the first tube 1. The provision of the plurality of second pipes 2 enables sampling of groundwater of multiple water levels.

Further, in the above-described embodiment, referring to fig. 1 to 3, assuming that the axis of the first pipe 1 is the first axis 13, in a projection on a plane perpendicular to the first axis 13, the plurality of second pipes 2 are annularly arranged. In the present embodiment, the acute angle formed between two adjacent second pipes 2 is an angle, and the mutual influence of the plurality of second pipes 2 when sucking groundwater is reduced to ensure the sampling quality of the pumped groundwater.

Preferably, the second tube 2 is a straight tube.

Specifically, in one embodiment, referring to fig. 1-3, the first end 21 is formed with a first opening communicating with the first pipe 1, and the second end 22 is formed with a second opening for communicating with groundwater; the second opening has a cross-section larger than the cross-section of the first opening. In the present embodiment, when the groundwater enters the second pipe 2 and flows from the second end 22 to the first end 21, the flow area decreases, and the flow velocity of the groundwater increases; therefore, the flow velocity of the fluid at the second opening is smaller than that at the first opening, and when the flow velocities are the same, the flow velocity of the second opening is smaller than that of the pipe body with openings at two ends of the pipe body, so that the disturbance of pumping on underground water is reduced, and the sampling quality of the underground water is further improved.

Specifically, in one embodiment, referring to fig. 1-3, the first opening and the second opening are both circular openings. In this embodiment, the circular opening makes the flow of groundwater smoother and fewer pipes are required to provide the circular opening.

Specifically, in one embodiment, referring to fig. 1-3, the axis of the first tube 1 is defined as a first axis 13, the straight line of the dots of the first opening and the dots of the second opening is defined as a second axis 23, and the acute angle formed between the first axis 13 and the second axis 23 is a first predetermined included angle; the first predetermined included angle is in the range of 45-80. In this embodiment, when the groundwater is pumped into the second pipe 2, the first predetermined included angle is an acute angle, the closer the first predetermined included angle is to 90 °, the stronger the groundwater disturbance below the second end 22 is relatively, and the closer the first predetermined included angle is to 0 °, the larger the change angle of the flow direction of the groundwater when the groundwater enters the first pipe 1 from the second pipe 2 is, so that the greater the flow loss is, therefore, in the selectable range, 45 ° to 80 ° is selected as the value range of the first predetermined included angle, and in the range of 45 ° to 80 °, the flow loss of the groundwater is not greater, and the stronger the groundwater disturbance below the second end 22 is also.

In particular, in a preferred embodiment, and with reference to fig. 1-3, the first predetermined angle is 60 °, at which the groundwater flow loss and groundwater turbulence below the second end 22 are coordinated to minimize the power of the pump body 3 without causing more than expected turbulence to the groundwater.

Specifically, in one embodiment, referring to FIGS. 1-3, the end surface of the second end 22 lies in a predetermined plane 24, and the acute angle formed between the predetermined plane 24 and the first axis 13 is a second predetermined angle, the second predetermined angle being in a range of 10-45. In this embodiment, under the same first predetermined angle, the second predetermined angle is an acute angle, the closer the second predetermined angle is to 90 °, the larger the area of the second opening is, the lower the flow velocity of the second opening is, the lower the disturbance to the groundwater is, but the larger the required space is, and the smaller the cross-sectional area of the general sampling well is, the closer the second predetermined angle is to 0 °, the closer the area of the second opening is to the first opening is, the larger the flow velocity of the second opening is, the larger the disturbance to the groundwater is, but the smaller the required area is; in the embodiment, within the optional range, 10 to 45 degrees are selected as the value range of the second preset included angle, within the range of 10 to 45 degrees, the disturbance to the underground water is not large, and the required space is not large.

In particular, in a preferred embodiment, referring to FIGS. 1-3, the second predetermined angle is 60, at which the groundwater disturbance and the desired space are coordinated to minimize the desired space requirement without causing an unexpected disturbance to the groundwater.

Optionally, in an embodiment, the normal direction of the predetermined plane 24 is directed towards the first axis 13 to ensure that the second pipe 2 can accurately pump groundwater above the second end 22.

Specifically, in one embodiment, referring to fig. 1-3, the pump body 3 is disposed within the first tube 1, and the first end 21 is disposed at a predetermined position in communication with the first tube 1, and the pump body 3 is disposed between the top end 11 and the predetermined position. In the present embodiment, the pump body 3 is provided at a position close to the second pipe 2 to ensure that the groundwater can be pumped.

Specifically, in one embodiment, please refer to fig. 1-3, further comprising a mounting seat 4 disposed in the first pipe 1 and a plurality of fillets 5 disposed in the first pipe 1; the plurality of rectifying pieces 5 extend in the conveying direction of the first pipe 1; setting the axis of the first pipe 1 as a first axis 13, wherein the mounting seat 4 is positioned on the first axis 13, one sides of the plurality of rectifying pieces 5 are respectively connected with the mounting seat 4, the other sides of the plurality of rectifying pieces 5 are connected on the inner wall of the first pipe 1, and the plurality of rectifying pieces 5 are annularly arranged along the annular direction of the first pipe 1 at intervals; in the transport direction of the first pipe 1, the mounting 4 is downstream of the pump body 3.

In the present embodiment, the rectifying fins 5 are provided to rectify the groundwater entering the first pipe 1 so that the groundwater smoothly flows in the first pipe 1.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a device of quick well-flushing of groundwater for groundwater to in the thief well is sampled, a serial communication port, includes:

a first pipe having a top end and a bottom end for immersion in the groundwater; the bottom end is closed;

the rectifying mechanism comprises a rectifying sheet and a mounting seat; the fairing and the mounting seat are respectively arranged in the first pipe, and the fairing is arranged on the mounting seat;

a second pipe for immersion in the groundwater; the second tube having a first end in communication with the first tube and a second end extending away from the base end;

a sample box connected to the top end; and

and the pump body is used for driving the underground water to sequentially pass through the second pipe and the first pipe and flow into the sample box.

2. An apparatus for rapidly washing a well with groundwater according to claim 1, wherein the second pipe is provided with a plurality of pipes; the plurality of second tubes are arranged at intervals along the extending direction of the first tube.

3. An apparatus for rapid flushing of groundwater according to claim 1, wherein the first end is formed with a first opening communicating with the first pipe, and the second end is formed with a second opening for communicating with the groundwater; the second opening has a cross-section larger than the cross-section of the first opening.

4. An apparatus for rapid flushing of groundwater according to claim 3, wherein the first opening and the second opening are both circular openings.

5. A groundwater rapid well washing apparatus as claimed in claim 4, wherein the axis of the first pipe is a first axis, a straight line passing through the dots of the first opening and the dots of the second opening is a second axis, and an acute angle formed between the first axis and the second axis is a first predetermined angle; the first predetermined included angle is in the range of 45-80 degrees.

6. An apparatus for rapid flushing of groundwater according to claim 5, wherein the first predetermined angle is 60 °.

7. An apparatus for rapid flushing of groundwater according to claim 5, wherein the end face of the second end is in a predetermined plane, the predetermined plane forming an acute angle with the first axis being a second predetermined angle, the second predetermined angle being in the range of 10 ° to 45 °.

8. An apparatus for rapid flushing of groundwater according to claim 7, wherein the second predetermined angle is 60 °.

9. A groundwater rapid well flushing apparatus as claimed in claim 1, wherein the pump body is disposed within a first pipe, and the pump body is disposed between the top end and a predetermined location, provided that the first end communicates with the first pipe.

10. An apparatus for rapidly washing a well with groundwater according to claim 1, wherein the plurality of the rectifying plates are provided;

the plurality of rectifying pieces extend along the conveying direction of the first pipe respectively; setting the axis of the first pipe as a first axis, wherein the mounting seat is positioned on the first axis, one side of each of the plurality of commutator segments is connected with the mounting seat, the other side of each of the plurality of commutator segments is connected to the inner wall of the first pipe, and the plurality of commutator segments are annularly arranged along the annular direction of the first pipe at intervals;

the mount is downstream of the pump body in a transport direction of the first tube.