CN214408205U

CN214408205U - Device for continuously pumping underground water

Info

Publication number: CN214408205U
Application number: CN202120412665.9U
Authority: CN
Inventors: 张培; 闵玉涛; 魏丽; 苗竹; 宋盘龙; 孙佳玥
Original assignee: Beijing Geoenviron Engineering and Technology Inc
Current assignee: Beijing Geoenviron Engineering and Technology Inc
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-10-15
Anticipated expiration: 2031-02-24

Abstract

The utility model discloses a device for extracting groundwater in succession, include: a mud pump located above ground; the bottom end of the water storage tank is connected with a mud pump through a drainage tube, the top end of the water storage tank is connected with the mud pump through a return tube, and the top end of one side of the water storage tank is provided with an overflow port; one end of the exhaust pipe is connected with the return pipe, the other end of the exhaust pipe is connected with the underground well, and the exhaust pipe is provided with a first valve; and the water pumping pipe is arranged in parallel with the exhaust pipe, one end of the water pumping pipe is connected with the return pipe, the other end of the water pumping pipe is connected with the underground well, and the water pumping pipe is provided with a second valve. The utility model discloses form return line between well slush pump and the storage water tank, and through forming the negative pressure in the connecting pipe, utilize the negative pressure to extract groundwater, the device is easy and simple to handle, implement with low costs, the aesthetic property is strong, the security is strong, the continuation is good and characteristics such as extensive applicability.

Description

Device for continuously pumping underground water

Technical Field

The utility model relates to a groundwater extraction field, concretely relates to a device for draw groundwater in succession.

Background

The underground water is pumped out by generally constructing an underground water well with a large caliber and putting a submersible slurry pump and a sludge pump into the bottom of the underground water well; or the self-priming pump is arranged on the ground, the water in the well is pumped out by adopting the water suction pipe, and then the water is collected or treated by using ground equipment. With the arrangement, the area for extracting the underground water is a place with enough water, and pore water cannot be extracted.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists among the prior art, the utility model provides a device for draw groundwater in succession.

The utility model discloses a device for extracting groundwater in succession, include: a mud pump located above ground;

the bottom end of the water storage tank is connected with the mud pump through a drainage tube, and the top end of the water storage tank is connected with the mud pump through a return tube;

one end of the exhaust pipe is connected with the return pipe, and the other end of the exhaust pipe is connected with the underground water well;

and the pumping pipes are arranged in parallel with the pumping pipe, one end of each pumping pipe is connected with the return pipe, and the other end of each pumping pipe is connected with the underground well.

Preferably, the return pipe includes a first connecting pipe, the first connecting pipe is a flared pipe gradually increasing from the middle to both ends, and the suction pipe and the pumping pipe are both connected with the middle of the first connecting pipe.

Preferably, the suction pipe is provided with a first valve, and the suction pipe is provided with a second valve.

Preferably, a branch pipe is arranged between the drainage pipe and the water pumping pipe, the joint of the branch pipe and the water pumping pipe is positioned behind the second valve, and a third valve is arranged on the branch pipe.

Preferably, the drainage tube is provided with an overhaul valve and comprises a section of second connecting pipe, the second connecting pipe is a flared pipe gradually increased from the middle to two ends, and the branch pipe is connected with the middle of the second connecting pipe.

Preferably, the top end of one side of the water storage tank is provided with an overflow port.

Preferably, the wellhead of the underground water well is provided with a sealing layer.

Preferably, the distance between the water pumping pipe and the bottom of the underground water well is 0.5-1 m, and the distance between the air pumping pipe and the wellhead of the underground water well is 1-3 m.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses form return line between well slush pump and the storage water tank, and through forming the negative pressure in the connecting pipe, utilize the negative pressure to extract groundwater, the device is easy and simple to handle, implement with low costs, the aesthetic property is strong, the security is strong, the continuation is good and characteristics such as extensive applicability.

Drawings

Fig. 1 is a schematic structural view of the device for continuously pumping groundwater according to the present invention.

Reference numerals:

1. a slurry pump; 2. a water storage tank; 21. an overflow port; 3. a drainage tube; 31. a second connecting pipe; 32. repairing the valve; 4. a return pipe; 41. a first connecting pipe; 5. an air exhaust pipe; 51. a first valve; 6. a water pumping pipe; 61. a second valve; 7. a bypass pipe; 71. a third valve; 8. an underground water well; 9. and (7) sealing the layer.

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 accompanying 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. 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 the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention will be described in further detail with reference to the accompanying drawing 1:

referring to fig. 1, an apparatus for continuously pumping groundwater includes: a slurry pump 1 located on the ground;

the bottom end of the water storage tank 2 is connected with a mud pump 1 through a drainage tube 3, the top end of the water storage tank 2 is connected with the mud pump 1 through a return tube 4, and the top end of one side of the water storage tank 2 is provided with an overflow port 21;

one end of the exhaust pipe 5 is connected with the return pipe 4, the other end of the exhaust pipe 5 is connected with the underground well 8, and the exhaust pipe 5 is provided with a first valve 51;

a water pumping pipe 6 arranged in parallel with the air pumping pipe 5, wherein one end of the water pumping pipe 6 is connected with the return pipe 4, the other end of the water pumping pipe 6 is connected with the underground well 8, and a second valve 61 is arranged on the water pumping pipe 6;

the well mouth of the underground water well 8 is provided with a sealing layer 9 to ensure that the underground water well 8 is in a relatively closed condition; the distance between the water pumping pipe 6 and the bottom of the underground well is 0.5-1 m, and the distance between the air pumping pipe 5 and the wellhead of the underground well 8 is 1-3 m.

Further, the return pipe 4 includes a first connecting pipe 41, the first connecting pipe 41 is a flared pipe gradually increasing from the middle to both ends, and the suction pipe 5 and the suction pipe 6 are both connected to the middle of the first connecting pipe 41. With the above structure, when the mud pump 1 is in operation, the first valve 51 is opened, and the second valve 61 is closed; water in the pumped water storage tank 2 sequentially passes through the drainage tube 3 and the return tube 4 and finally flows into the water storage tank 2, when water flows through the first connecting tube 41 of the return tube 4, the first connecting tube 41 generates negative pressure, so that gas or water in the underground water well 8 flows into the pumping tube 5 and is stabilized; when the first valve 51 is closed and the second valve 61 is opened, when water flows through the first connecting pipe 41 of the return pipe 4, the first connecting pipe 41 generates negative pressure, so that the groundwater flows into the first connecting pipe 41 through the pumping pipe 6 and finally flows into the water storage tank 2, when the water amount in the water storage tank 2 exceeds a certain amount, the groundwater is discharged through the overflow port 21, and in the pumping process, the first valve 51 is intermittently opened, so that micro negative pressure is generated in the underground well 8, and the seepage of water around the underground well 8 is utilized.

Still further, a branch pipe 7 is arranged between the drainage pipe 3 and the water pumping pipe 6, the joint of the branch pipe 7 and the water pumping pipe 6 is positioned behind the second valve 61, and a third valve 71 is arranged on the branch pipe 7.

Wherein, be equipped with maintenance valve 32 on the drainage tube 3, and the drainage tube 3 includes one section second connecting pipe 31, and second connecting pipe 31 is the horn tube that increases gradually from the centre to both ends, and branch pipe 7 is connected with the centre department of second connecting pipe 31. When the flow rate of the groundwater well 8 is large, the third valve 71 is opened so that the branch pipe 7 can also pump groundwater.

When the amount of water in the groundwater well 8 is large, a plurality of devices can be arranged at the same time to work at the same time, as in the following embodiments.

Example 1

In a certain field in Nanjing City of Jiangsu province, underground water extraction is required for digging, the water extraction depth is 5m, the water extraction area is about 0.9 ten thousand square meters, the soil layer is a miscellaneous filling layer and a clay layer, the initial water level burial depth is 0.5m, and the porosity is 40%.

The continuous groundwater extraction device of this application is adopted to this place work progress, and the place is built about 30 mouthful of diameter 300 cm's deep 5.5m groundwater wells, adopts 3 sets of continuous pumping devices to work altogether.

After 4 months of continuous pumping work of the underground water pumping device, the underground water in the site is pumped by about 1.2 ten thousand meters³。

Example 2

In a certain place in Nanjing City of Jiangsu province, underground water in the place is polluted, the water extraction depth is 7m, the water extraction area is about 1 ten thousand square meters, 0-3 m of a soil layer is a miscellaneous filling layer, 3-7 m of the soil layer is a clay layer, the initial water level burial depth is 1m, and the porosity is 35%.

This place work progress adopts the continuous groundwater extraction device of this application, and the continuous groundwater extraction device is placed on ground, and the place is built about 100 mouthful of diameter 300 cm's dark 7.5m underground water well, adopts 5 sets of continuous pumping devices to work altogether.

After the continuous pumping work of the underground water pumping device for 6 months, the underground water in the site is pumped into 2 ten thousand meters of underground water³。

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An apparatus for continuously pumping groundwater, comprising:

a mud pump located above ground;

2. An apparatus for continuously pumping groundwater as claimed in claim 1, wherein the return pipe includes a first connection pipe which is a flare pipe gradually increasing from a middle to both ends, and the suction pipe and the pumping pipe are connected to the middle of the first connection pipe.

3. An apparatus for continuously pumping groundwater as claimed in claim 2, wherein the suction pipe is provided with a first valve and the pumping pipe is provided with a second valve.

4. The device for continuously pumping groundwater as claimed in claim 3, wherein a branch pipe is arranged between the drainage pipe and the pumping pipe, the junction of the branch pipe and the pumping pipe is located behind the second valve, and a third valve is arranged on the branch pipe.

5. An apparatus for continuously pumping groundwater as claimed in claim 4, wherein the draft tube is provided with a service valve, and the draft tube includes a second connection pipe which is a trumpet shape gradually increasing from the middle to both ends, and the branch pipe is connected to the middle of the second connection pipe.

6. The apparatus for continuously pumping groundwater as claimed in claim 1, wherein an overflow port is formed at a top end of one side of the storage tank.

7. An apparatus for continuously pumping groundwater as claimed in claim 1, wherein a wellhead of the groundwater well is provided with a sealing layer.

8. The apparatus for continuously pumping groundwater according to claim 1, wherein the pumping pipe is located 0.5 to 1m from the bottom of the groundwater well, and the pumping pipe is located 1 to 3m from the wellhead of the groundwater well.