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Efficient and anti-blocking water-bearing stratum supply device

An anti-clogging and aquifer technology, applied in the direction of soil protection, loose filter material filters, gravity filters, etc., can solve the problems of recharge efficiency, clogging and energy consumption, clogging, and low water volume of a single well at the same time problems, to achieve the effect of preventing clogging, convenient construction and high recharge efficiency

Inactive Publication Date: 2014-12-10
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to solve the problem of reinjection clogging, Chinese patent CN201120432424 discloses a device for preventing clogging of groundwater reinjection wells, which is connected to the desander through multi-stage pipelines and conversion boxes to solve the problem of single well water volume caused by clogging of reinjection wells. The problem of less and less water
However, neither of the above two technologies can simultaneously solve the problems of recharge efficiency, clogging and energy consumption during the recharge process.

Method used

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  • Efficient and anti-blocking water-bearing stratum supply device
  • Efficient and anti-blocking water-bearing stratum supply device

Examples

Experimental program
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Effect test

Embodiment 1

[0024] A high-efficiency anti-clogging aquifer recharge device, comprising a ditch (1), several water filtration and desilting devices (2) vertically distributed along the ditch (1), and each water filtration and desilting device (2) includes a pre-filter device (3), rear dredging well (5), and an underground water filter pipe (4) densely covered with water holes for connecting the pre-filter device (3) and the rear dredging well (5); The filter device (3) is arranged at the bottom of the ditch (1), and the rear dredging well (5) is located at the other end of the underground water filter pipe (4).

[0025] The pre-filter device (3) consists of geotextile a (6), filter material (7), support layer with holes (8), flooded space (9) and base (10) from top to bottom; The geotextile a (6) is tiled on the surface of the filter material (7); the filter material (7) is tiled on the surface of the supporting layer (8); small holes are opened on the supporting layer (8); the flooded spa...

Embodiment 2

[0029] A high-efficiency anti-clogging aquifer replenishment device, the structure and composition of which are the same as in Embodiment 1.

[0030] Among them, the diameter of the circular water filter hole (13) d 0 =3 d 50 , hole spacing L 0 =1.2 d 0 ,in d 0 is the hole diameter, L 0 is the hole spacing, d 50 It is the maximum particle diameter when the sieved weight of rock and soil samples at the location of the filter pipe is accumulated to 50%. Filter material (7) particle size D 50 =7 d 50 ,in D 50 In the particle composition of the filter material sieved sample, the maximum particle diameter of 50% of the cumulative weight of the sieve, d 50 The largest particle diameter at which the source cement sand particle weight accounts for 50%. The slope of the underground water filter pipe (4) is set to 1 / 500; the height of the flooded space (9) is H=2D, where D is the diameter of the underground water filter pipe (4); the height of the base (10) is ...

Embodiment 3

[0032] A high-efficiency anti-clogging aquifer replenishment device, the structure and composition of which are the same as in Embodiment 1.

[0033]Among them, the diameter of the circular water filter hole (13) d 0 =5 d 50 , hole spacing L 0 =1.5 d 0 ,in d 0 is the hole diameter, L 0 is the hole spacing, d 50 It is the maximum particle diameter when the sieved weight of rock and soil samples at the location of the filter pipe is accumulated to 50%. Filter material (7) particle size D 50 =8 d 50 ,in D 50 In the particle composition of the filter material sieved sample, the maximum particle diameter of 50% of the cumulative weight of the sieve, d 50 The largest particle diameter at which the source cement sand particle weight accounts for 50%. The slope of the underground water filter pipe (4) is set to 1 / 600; the height of the flooded space (9) is H=7D, where D is the diameter of the underground water filter pipe (4); the height of the base (10) is 0...

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Abstract

The invention discloses an efficient and anti-blocking water-bearing stratum supply device, and belongs to the technical field of water-bearing stratum supply, namely artificial underground water recharge. The device comprises a channel (1) and a plurality of water filtering and dredging devices (2) vertically distributed along the channel (1). Each water filtering and dredging device (2) comprises a front-arranged filter unit (3), a rear-arranged dredging well (5) and an underground filter pipe (4) densely provided with water through holes and communicating the front-arranged filter unit (3) and the rear-arranged dredging well (5). The front-arranged filter unit (3) is arranged at the bottom of the channel (1), and the rear-arranged dredging well (5) is arranged at the other end of the filter pipe (4). The efficient and anti-blocking water-bearing stratum supply device has the remarkable advantages of being simple in design structure, small in occupied space, high in underground water supply efficiency, free of energy consumption, convenient to construct, low in cost and the like.

Description

technical field [0001] The invention relates to the technical field of aquifer recharge, that is, groundwater artificial recharge, and in particular to an aquifer recharge device with high efficiency and anti-clogging. Background technique [0002] Water resources are scarce in northern China, and groundwater plays a vital role in agricultural and urban water supply. However, due to the overexploitation of agricultural and urban water use, groundwater overexploitation has caused a large area of ​​groundwater funnel area and caused various environmental geological problems. In areas with excess flood and diverted water, in order to increase the amount of groundwater resources, technical measures of aquifer recharge such as surface seepage (ditches, canals, basins, etc.) and well water injection recharge have appeared. However, although the ditch, canal, and basin seepage replenishment technology has a small investment and good effect, it occupies a large area and affects agri...

Claims

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Application Information

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IPC IPC(8): E02D3/00B01D24/14
Inventor 王维平李法金邓海燕马喜堂徐巧艺张金黄强孙广浩
Owner UNIV OF JINAN
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