Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Wellhead of frustum-shaped internal-external water-inflow permeable inverted-filtering recharge well

A technology for wellhead devices and reinjection wells, which is applied in water supply devices, drinking water devices, buildings, etc., can solve the problems of concrete well covers affecting reinjection volume, reduction in reinfusion volume, large cross-sectional area, etc., and achieve rapid reinjection problem effect

Active Publication Date: 2014-11-19
UNIV OF JINAN
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the problems of this self-seepage-recharge well are: 1. The self-seepage-recharge well is placed at the bottom of the river or the bottom of the canal, which is very easy to be silted up and washed away by the water flow, which affects the service life; 2. The recharge tank is buried in Underground, there is only a free water inlet section on the top of the recharge tank. In order to ensure sufficient recharge volume, the recharge tank requires a large cross-sectional area and a large amount of construction; 3. To build an ordinary recharge tank requires backfilling 10m 3 Left and right sand and gravel consume a lot of building materials; 4. The use of concrete manhole covers affects the amount of recharge; 5. Only the top surface can enter water, and the recharge capacity of the recharge well is low
[0005] However, since most of the rainfall is showers, the time for rainwater to flow in the river is short, and the permeable holes on the roof and side walls cannot meet the needs of recharge. However, the size of the permeable hole increases, which not only reduces the strength of the wellhead device, but also puts forward higher requirements for the strength of the geotextile filter layer, otherwise the impact of sand on the geotextile filter layer will easily damage the geotextile. The fabric filter layer, the sand and stone entering the reinjection well will reduce the water seepage function of the reinjection well; some technicians also try to increase the number of permeable holes in the wellhead device, and increasing the number of permeable holes will inevitably reduce the size of the permeable holes, although It can solve the strength problem of the wellhead device, but the overall reinjection volume is reduced; therefore, improving the reinjection volume and ensuring the strength and reliability of the wellhead device in this field have always been the bottleneck affecting the scale development of self-infiltration reinjection wells

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Wellhead of frustum-shaped internal-external water-inflow permeable inverted-filtering recharge well
  • Wellhead of frustum-shaped internal-external water-inflow permeable inverted-filtering recharge well
  • Wellhead of frustum-shaped internal-external water-inflow permeable inverted-filtering recharge well

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] exist Figure 1-8 Among them, the wellhead device of the platform-shaped internal and external water inflow self-infiltration reverse filtration reinjection well relates to the reinjection well 8 and its wellhead device. The filter material 9, the recharge well 8 is located below the ground 10 at the bottom of the river or at the bottom of the canal.

[0032] The wellhead device includes a well cover 1 and a geotextile filter layer 3 .

[0033]The manhole cover 1 is composed of the upper part 11 of the manhole cover with the water inlet and the lower part 12 of the manhole cover buried under the ground of the river bottom or the canal bottom, and the manhole cover 1 as a whole is a hollow bottomless frustum. The center of the upper part of the well cover 1 is provided with a hollow annular groove (cube groove) with a groove bottom, and a circular water inlet hole is arranged on the outer side of the upper part of the well cover, that is, the water inlet hole 4 on the t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a wellhead of a frustum-shaped internal-external water-inflow permeable inverted-filtering recharge well and belongs to the technical field of water retention. The wellhead comprises a well lid, a geotextile inverted filter and a pressurizing mechanism, the well lid is composed of a well lid top and a well lid bottom, the well lid top is arranged as a hollow-core annulus groove and provided with water inlet orifices, the well lid bottom is buried under a river bottom or trench bottom ground, the well lid is integrally a hollow-core bottomless frustum, and the hollow-core annulus groove arranged in the center of the well lid top is a cube-shaped groove with a groove bottom. The round water inlet orifices are arranged in the outer side of the well lid top, the inner side of the hollow-core annulus groove and the groove bottom. The well lid bottom is an impermeable body. The geotextile inverted filter is arranged on the outer side of the well lid and fits the outer side of the well lid and the hollow-core annulus groove in shape. The pressurizing mechanism comprises a vertical shaft and blades. Under the condition that the appearance and the size of the wellhead device are unchanged, flow capacity and silt prevention and antiseep capacity of a recharge pool can be improved obviously, service life of the recharge pool is prolonged, recharge is quickened, and recharge efficiency is improved beneficially.

Description

technical field [0001] The invention relates to a recharge well for self-seepage type non-pressure groundwater recharge, in particular to a wellhead device for a table-shaped inner and outer water inlet self-seepage reverse filtration recharge well, which belongs to the technical field of water conservation. Background technique [0002] How to preserve water in some water-deficient areas or how to prevent seawater backflow caused by excessive exploitation of groundwater in coastal areas is a major issue that restricts local people's life and economic development. The means to solve this issue are to strengthen people's awareness of water conservation. Effective use of rain and flood resources is also one of the important measures. [0003] In order to make full use of rain and flood resources, in seasonal rivers with no pollution or slight pollution, a kind of recharge well with the function of filtering particulate impurities in water is often arranged, that is, self-infil...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): E03B3/40E03B3/04
Inventor 李旺林尹志远李纳
Owner UNIV OF JINAN
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products