阅读说明：本技术 一种地下水抽提装置及抽提方法 (Underground water extraction device and extraction method ) 是由 梁恒 徐民民 吕超 张文辉 王燕华 于 2021-09-07 设计创作，主要内容包括：本发明公开了一种地下水抽提装置及抽提方法,所述的抽提装置包括井管、第一活塞、抽水管和泵机；其中,所述的井管上设置进水孔；所述的第一活塞设置于井管内且第一活塞的外壁与井管的内壁相贴合；所述的第一活塞将井管分割成多个抽水层,每个抽水层内均设有抽水管；所述的抽水管与泵机连接；工作时,第一活塞位于地层介质分层处。本发明的地下水抽提装置,对不同地层介质的地下水分开进行抽提,从而达到分开控制不同地层介质抽提水量的目的,更加精确的抽提到目标地层介质与深度中的地下水,并且对不同密度的污染物有更好的适应性,有更高的抽提效率和更好的提取效果。(The invention discloses an underground water extraction device and an extraction method, wherein the extraction device comprises a well pipe, a first piston, a water pumping pipe and a pump; wherein, the well pipe is provided with a water inlet hole; the first piston is arranged in the well pipe, and the outer wall of the first piston is attached to the inner wall of the well pipe; the first piston divides the well pipe into a plurality of water pumping layers, and a water pumping pipe is arranged in each water pumping layer; the water pumping pipe is connected with a pump; in operation, the first piston is positioned at a formation medium layer. The underground water extraction device provided by the invention can be used for separately extracting underground water of different stratum media, so that the aim of separately controlling the extraction water amount of the different stratum media is fulfilled, the underground water in a target stratum medium and the depth can be more accurately extracted, the adaptability to pollutants with different densities is better, and the extraction efficiency and the extraction effect are higher.)

1. An underground water extraction device is characterized in that: comprises a well pipe (10), a first piston (20), a water pumping pipe (30) and a pump (40);

wherein the well pipe (10) is provided with a water inlet hole; the first piston (20) is arranged in the well pipe (10), and the outer wall of the first piston (20) is attached to the inner wall of the well pipe (10); the well pipe (10) is divided into a plurality of water pumping layers by the first piston (20), and a water pumping pipe (30) is arranged in each water pumping layer; the water pumping pipe (30) is connected with a pump (40);

in operation, the first piston (20) is positioned at a formation medium layer.

2. The underground water extraction apparatus of claim 1, wherein: the well casing (10) is a pipe body with an opening at the upper end, and a plurality of water inlet holes are uniformly distributed on the pipe body.

3. The underground water extraction apparatus of claim 1, wherein: the first piston (20) is provided with a first insertion hole, and the first insertion hole is matched with the outer diameter of the water pumping pipe (30).

4. The underground water extraction apparatus of claim 1, wherein: an outer cover (70) is arranged on the outer wall of the water pumping pipe (30), and a water inlet at the bottom of the water pumping pipe (30) is positioned in the outer cover (70);

wherein, the outer cover (70) comprises a hollow cover body and a second piston (71) arranged at the upper end of the hollow cover body; the outer wall of the second piston (71) is attached to the inner wall of the hollow cover body, a second insertion hole is formed in the second piston (71), and the second insertion hole is matched with the outer diameter of the water pumping pipe (30).

5. The underground water extraction apparatus of claim 1, wherein: a water level sensor (50) is arranged in each pumping layer in the well pipe (10).

6. The underground water extraction apparatus of claim 5, wherein: the water level sensor (50) is arranged on the inner wall of the well pipe (10); a plurality of water level sensors (50) are arranged in each pumping layer in the well pipe (10), and the water level sensors (50) are arranged along the height direction of the well pipe (10).

7. The underground water extraction apparatus of claim 1, wherein: the first piston (20) is provided with a height adjusting device (60).

8. The underground water extraction apparatus of claim 7, wherein: the height adjusting device (60) is a hydraulic cylinder, and a hydraulic rod of the hydraulic cylinder is fixed on the first piston (20).

9. The underground water extraction apparatus of claim 5, wherein: the underground water extraction device also comprises a controller (80), wherein the controller (80) is respectively and electrically connected with the water level sensor (50) and the pump (40).

10. The underground water extraction apparatus of claim 1, wherein: the number of the first pistons (20) is related to the type of the stratum medium, and when n stratum media exist, the number of the first pistons (20) is n-1.

11. An underground water extraction method is characterized in that: the groundwater extraction apparatus as defined in claim 1, wherein the extraction method comprises the following steps:

determining the depths of different stratum media according to geological exploration;

placing the well tubular (10) underground;

adjusting a first piston (20) arranged in the well tubular (10) to a stratification of different formation media;

the pump (10) is started, and the pumping pipe (30) in each pumping layer starts to perform the layered extraction on the underground water in each stratum medium.

Technical Field

The invention relates to the field of underground water restoration, in particular to an underground water extraction device and an underground water extraction method.

Background

In the current groundwater extraction process, since groundwater exists in different stratum media, there are cases where groundwater extraction effects are inconsistent among different stratum media. The soil layer is mainly sandy soil, the soil pores are large, and the groundwater backwater effect is good; in deep soil, clay is used as a main soil layer, the number of soil water seepage systems is poor, and the water return effect is poor. Different stratum media cause the difference of different depth return water effects to cause the inhomogeneous phenomenon of groundwater extraction, the water extraction volume of upper strata is big, and the water extraction volume of lower floor is little.

In addition, in the case that the density of the pollutants is greater than that of water, the extraction effect of the pollutants is poor, the pollutants can not be effectively extracted, and the cost is increased.

Therefore, it is necessary to provide an apparatus and a method for extracting groundwater with good extraction effect.

Disclosure of Invention

One of the objects of the present invention is: provides a groundwater extraction device with good extraction effect.

In order to achieve the above purpose, the invention provides the following technical scheme:

an underground water extraction device comprises a well pipe, a first piston, a water pumping pipe and a pump;

wherein, the well pipe is provided with a water inlet hole; the first piston is arranged in the well pipe, and the outer wall of the first piston is attached to the inner wall of the well pipe; the first piston divides the well pipe into a plurality of water pumping layers, and a water pumping pipe is arranged in each water pumping layer; the water pumping pipe is connected with a pump;

in operation, the first piston is positioned at a formation medium layer.

Preferably, the well casing is a pipe body with an upper end opened, and a plurality of water inlet holes are uniformly distributed on the pipe body.

Preferably, the first piston is provided with a first insertion hole, and the first insertion hole is matched with the outer diameter of the water pumping pipe.

Preferably, the outer wall of the water pumping pipe is provided with an outer cover, and a water inlet at the bottom of the water pumping pipe is positioned in the outer cover;

the outer cover comprises a hollow cover body and a second piston arranged at the upper end of the hollow cover body; the outer wall of the second piston is attached to the inner wall of the hollow cover body, a second inserting hole is formed in the second piston, and the second inserting hole is matched with the outer diameter of the water pumping pipe.

Preferably, a water level sensor is arranged in each pumping layer of the well pipe.

Preferably, the water level sensor is arranged on the inner wall of the well pipe; a plurality of water level sensors are arranged in each pumping layer in the well pipe and are arranged along the height direction of the well pipe.

Preferably, the first piston is provided with a height adjusting device.

Preferably, the height adjusting device is a hydraulic cylinder, and a hydraulic rod of the hydraulic cylinder is fixed on the first piston.

Preferably, the groundwater extraction device further comprises a controller, and the controller is electrically connected with the water level sensor and the pump respectively.

Preferably, the first pistons are arranged in a plurality, the number of the first pistons is related to the types of the stratum media, and when n stratum media exist, the number of the first pistons is n-1.

The second purpose of the invention is: provides a groundwater extraction method with good extraction effect.

In order to achieve the above purpose, the invention provides the following technical scheme:

an underground water extraction method adopts the underground water extraction device, and the extraction method comprises the following steps:

determining the depths of different stratum media according to geological exploration;

placing the well tubular in the ground;

adjusting a first piston arranged in a well pipe to the layering position of different stratum media;

and starting the pump, and starting the water pumping pipe in each water pumping layer to perform layered extraction on the underground water in each stratum medium.

The invention has the beneficial effects that:

the underground water extraction device provided by the invention can be used for separately extracting underground water of different stratum media, so that the aim of separately controlling the extraction water amount of the different stratum media is fulfilled, the underground water in a target stratum medium and the depth can be more accurately extracted, the adaptability to pollutants with different densities is better, and the extraction efficiency and the extraction effect are higher.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention 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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

FIG. 1 shows a schematic structural diagram of the present invention;

FIG. 2 shows an enlarged view of A in FIG. 1;

in the reference symbols: 10-well pipe, 20-first piston, 30-water pumping pipe, 40-pump, 50-water level sensor, 60-height adjusting device, 70-outer cover, 71-second piston and 80-controller.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1: the invention discloses an underground water extraction device, which comprises a well pipe 10, a first piston 20, a water pumping pipe 30 and a pump 40;

wherein, the well pipe 10 is provided with a water inlet hole; the first piston 20 is arranged in the well pipe 10, and the outer wall of the first piston 20 is attached to the inner wall of the well pipe 10; the well pipe 10 is divided into a plurality of water pumping layers by the first piston 20, and a water pumping pipe 30 is arranged in each water pumping layer; the pumping pipe 30 is connected with a pump 40; in operation, the first piston 20 is positioned at a formation medium layer.

When the device works, the first piston 20 is adjusted to the stratum medium layering position, and then the pump machine 40 is started to extract the underground water in each water pumping layer, so that the underground water of different stratum media is extracted separately, the phenomenon of uneven extraction of the underground water is avoided, and the extraction effect is improved.

Specifically, a height adjusting device 60 is disposed on the first piston 20, and specifically, the height adjusting device 60 is a hydraulic cylinder, and a hydraulic rod of the hydraulic cylinder is fixed on the first piston 20. The first piston 20 is driven by a hydraulic cylinder to move up and down along the inner wall of the well tubular 10.

Specifically, the well pipe 10 is a pipe body with an opening at the upper end, and a plurality of water inlet holes are uniformly distributed on the pipe body; by providing the pipe body with water inlet holes, groundwater can enter the well pipe 10 from the water inlet holes. Specifically, the water inlet holes may be circular holes, square holes, or holes of other shapes, as long as it is satisfied that the groundwater can smoothly enter the well pipe 10. Preferably, the well casing 10 is made of steel.

Specifically, the first piston 20 is provided with a first insertion hole, and the first insertion hole is matched with the outer diameter of the pumping pipe 30. By providing the first insertion hole in the first piston 20, the suction pipe 30 in the suction layer below the first piston 20 can pass through the first piston 20 from the first insertion hole into the suction layer.

As a preferred scheme, as shown in fig. 2: an outer cover 70 is arranged on the outer wall of each water pumping pipe 30, and a water inlet at the bottom of each water pumping pipe 30 is positioned in the outer cover 70;

wherein, the outer cover 70 comprises a hollow cover body and a second piston 71 arranged at the upper end of the hollow cover body; the outer wall of the second piston 71 is attached to the inner wall of the hollow cover body, and a second insertion hole is formed in the second piston 71 and matched with the outer diameter of the water pumping pipe 30.

The outer cover 70 is arranged on the outer wall of each water pumping pipe 30, so that the underground water can only enter the water pumping pipes 30 through the bottom of the outer cover 70, and the better extraction effect is achieved on pollutants with higher density in the underground water.

Preferably, a water level sensor 50 is disposed in each pumping layer of the well casing 10.

The water level sensor 50 is arranged on the inner wall of the well pipe 10; a plurality of water level sensors 50 are arranged in each pumping layer of the well pipe 10, and the plurality of water level sensors 50 are arranged along the height direction of the well pipe 10.

Whether groundwater exists at a certain position in the pumping layer can be detected by arranging the water level sensor 50, and the specific function is described in detail with reference to fig. 1, and it can be seen from fig. 1 that: two water level sensors 50 are arranged in each water pumping layer, one water level sensor 50 is positioned at the lower position of the water pumping layer, and the other water level sensor 50 is positioned at the lower position of the water pumping layer; when the water level sensor 50 at the higher position senses the underground water, the pump 40 is started to extract the pumped layer; when the water level is lower than the water level sensor 50 at the lower layer, the pump 40 is closed, and the extraction of the underground water is stopped, so that the extraction is convenient, and the cost can be saved.

Preferably, the groundwater extraction device further comprises a controller 80, and the controller 80 is electrically connected to the water level sensor 50 and the pump 40 respectively.

By arranging the controller 80, when the water level sensor 50 at the higher position senses underground water, the pump 40 is controlled by the controller 80 to extract the pumping layer; when the water level is lower than the water level sensor 50 at the lower part of the floor, the controller 80 controls the pump 40 to stop the extraction of the groundwater; thereby realizing the automatic extraction process.

When the device is specifically arranged, a plurality of first pistons 20 are arranged, the number of the first pistons 20 is related to the types of the stratum media, and when n stratum media exist, the number of the first pistons 20 is n-1.

As can be seen from fig. 1, there are 3 formation mediums in fig. 1, so there are 2 first pistons 20, 2 first pistons 20 divide the well pipe 10 into 3 pumping layers, 1 pumping pipe 30 is disposed in each pumping layer, and there are 3 pumping pipes 30, and each pumping pipe 30 is connected to a pump 40 through a respective pipeline, and there are 3 pumps 40; each first piston 20 is provided with 1 height adjustment device 60, and 2 height adjustment devices 60 are provided.

The invention also discloses an underground water extraction method, which comprises the following steps:

determining the depths of different stratum media according to geological exploration;

placing the well tubular 10 underground;

adjusting a first piston 20 arranged in the well tubular 10 to a stratification of different formation media;

the pump 10 is started and the pumping pipes 30 in each pumping layer begin to extract groundwater in each formation medium in layers.

Further, as a preferred groundwater extraction method, with reference to fig. 1, the following specific steps are performed:

s1: determining the depths of different stratum media according to geological exploration;

s2: placing the well tubular 10 underground;

s3: the first piston 20 arranged in the well tubular 10 is adjusted by means of the height adjustment device 60 to the stratification of different formation media;

s4: when the water level sensor 50 at the higher position senses the groundwater, the pump 40 is controlled by the controller 80 to extract the groundwater of the pumping layer;

s5: when the water level is lower than the water level sensor 50 at the lower part of the water layer, the controller 80 controls the pump 40 to stop the extraction of the groundwater from the water pumping layer; thereby realizing the layered automatic extraction.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.