CN104110052B - Square internal-external water inflow type wellhead device of infiltration recharge well - Google Patents
Square internal-external water inflow type wellhead device of infiltration recharge well Download PDFInfo
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- CN104110052B CN104110052B CN201410365808.XA CN201410365808A CN104110052B CN 104110052 B CN104110052 B CN 104110052B CN 201410365808 A CN201410365808 A CN 201410365808A CN 104110052 B CN104110052 B CN 104110052B
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Abstract
The invention belongs to the technical field of water retention and discloses a square internal-external water inflow type wellhead device of an infiltration recharge well. The wellhead device comprises a well lid, a geotextile infiltration layer and a pressurizing device, the well lid comprises an upper well lid portion and a lower well lid portion, the upper well lid portion is in the shape of a hollow annular groove and provided with water inflow orifices, the lower well lid portion is buried below a river bottom ground or a canal bottom ground, the well lid is a hollow bottomless cylinder integrally, round water inflow orifices are formed in the outer side of the upper well lid portion, the inner side of the hollow annular groove and the groove bottom, and the lower well lid portion is a watertight body. A water pressurizing mechanism comprises a vertical shaft and blades, the vertical shaft is fixed on the inner sidewall of the hollow annular groove, upper blades can rotate to drive lower blades to rotate synchronously under the action of water flow, and the lower blades downwardly pressurize water inflowing to the recharge well, so that recharge speed is increased. The square internal-external water inflow type wellhead device of the infiltration recharge well has the advantages that on the condition that the wellhead device is unchanged in overall dimension, discharge capacity and silt-preventing wash-resistant capacity of a recharge pond can be improved remarkably, and service life of the recharge pond is prolonged.
Description
Technical field
The present invention relates to a kind of recharge well recharged for self-leak type free groundwater, particularly a kind of square inside and outside water inlet is from oozing anti-filter recharge well wellhead assembly, belongs to water conservation technical field.
Background technology
The how water conservation or how to prevent the inwelling caused because of exhaustive exploitation underground water from being the key subjects of restriction local people life and economic development in coastal area in the area of some lack of water, and the means solving this problem are except strengthening people's consciousness of saving water, effectively utilizing rain-flood resources is also one of important measures.
In order to make full use of rain-flood resources, in the ephemeral stream not having pollution or light contamination, usually arrange a kind of recharge well self with particulate contamination function in filtered water, namely from oozing recharge well, also known as anti-filter recharge well, machine seepage well.Current employing certainly ooze anti-filter recharge well by recharging pond and common recharge well forms, wherein recharging pond and be usually embedded in underground, is the shape of falling Sifangtai or circle, dark about 1m, Cast-in-situ Piles in Sand-filling, rubble two-stage filter material in pond, for filtering river and being recharged by river in recharge well; Recharge well is positioned at and recharges in the middle of bottom pond, and be columned cavity, its well head adds a cover the perforated concrete well cover of a band, river is in time recharging above pond, gather via sand, the infiltration of rubble two-stage filter material, enter in recharge well by eyelet on concrete well cover, realize water conservation and recharge.But, thisly from oozing recharge well Problems existing be: 1, certainly ooze recharge well and be placed at the bottom of river bed or canal, very easily silting and being washed out by current, affect application life; 2, recharge pond and be embedded in underground, only recharge pond end face one and freely to intake section, for ensureing enough amounts of recharging, recharging pond needs larger cross sectional area, and great in constructing amount; What 3, construction one was common recharges pond needs to backfill 10m
3sand, the rubble of left and right, consume a large amount of constructional materials; 4, the use of concrete well cover have impact on the amount of recharging; 5, only have end face to intake, the water recharge capacity of recharge well is low.These defects have had a strong impact on the result of use of recharge well, do not play its water conservation usefulness to greatest extent.
Chinese patent 201220458416.4 discloses the water inlet of a kind of multiaspect from oozing anti-filter recharge well wellhead assembly, it on recharge well, is provided with one cover in wellhead assembly above well head, and described wellhead assembly comprises well lid and is fixedly installed on the geotechnical fibre filter layer outside well lid; Described well lid is made up of the top cover in band top cover aperture and the rigid side wall that is vertically connected at top cover surrounding; Described sidewall is made up of superposed sidewall meshed portion and the sidewall non-porous sections being positioned at bottom, geotechnical fibre filter layer by top cover and sidewall meshed portion coated, sidewall non-porous sections bottom is embedded in below ground at the bottom of river bed or canal, sidewall non-porous sections middle and upper part is exposed, and the top cover upper surface of described well lid is inclined plane.This device section solves above-mentioned prior art Problems existing, and there is larger section of freely intaking, prevent the function of low water stage waste water injection, and there is certain anti-filter function and certain anti-silting impact resistance, extend the application life of recharging pond, be easy to construction simultaneously, and save sandstone filter material.
But, because most of rainfall belongs to shower, rainwater overcurrent time in river is short, only rely on the permeable hole on top cover and sidewall cannot meet the needs of the amount of recharging, researcher also attempts the size of increase permeable hole to increase water amount, but the size of permeable hole increases, not only reduce the intensity of wellhead assembly, and higher requirement be it is also proposed to the intensity of geotechnical fibre filter layer, otherwise sandstone very easily damage geotechnical fibre filter layer to the impact of geotechnical fibre filter layer, the sandstone entering recharge well can cause recharge well water seepage function to reduce; Also the technician had attempts the quantity of the permeable hole increasing wellhead assembly, and the quantity increasing permeable hole will certainly reduce the size of permeable hole, although can solve the strength problem of wellhead assembly, the amount of recharging entirety reduces; Therefore improve intensity and the reliability of the amount of recharging and guarantee wellhead assembly in this area, be that impact is from the bottleneck oozing recharge well scale development always.
Summary of the invention
In order to solve above-mentioned bottleneck problem, the invention provides a kind of square inside and outside water inlet from oozing anti-filter recharge well wellhead assembly, this device, when wellhead assembly appearance and size is constant, can significantly improves and recharge pond conveyance capacity, anti-silting impact resistance, extend the application life of recharging pond.
The technical solution adopted for the present invention to solve the technical problems is:
This kind of square inside and outside water inlet is from oozing anti-filter recharge well wellhead assembly, described wellhead assembly comprises well lid and is fixedly installed on the geotechnical fibre filter layer outside well lid, it is characterized in that, described well lid is made up of with the well lid bottom being embedded in below ground at the bottom of river bed or canal the well lid top of the band water inlet arranged in hollow ring body groove, well lid entirety is the bottomless square cylinder of hollow, and the hollow ring body groove that described well lid center upper portion is provided with is the square body with bottom land; Inside well lid upper outside, hollow ring body groove and bottom land be equipped with circular water inlet; Described well lid bottom is waterproof body; Described geotechnical fibre filter layer to be arranged at outside well lid and with well lid outside and the shape of hollow ring body groove match; Arrange a setting-out mechanism in described hollow ring body groove, described setting-out mechanism comprises the horizontal stand be fixed on hollow ring body groove inside wall, sets a upper bearing (metal) in described support; In the bottom land through hole of hollow ring body groove, set a lower bearing concentric with upper bearing (metal), a vertical shaft is by after described upper bearing (metal) and lower bearing, and connection upper end, vertical shaft upper end blade, vertical shaft lower end connects the lower end blade flowed to as towards recharge well shaft bottom.Blade rotatable lower end blade synchronization that drives under flow action in upper end is rotated, and the flow direction due to lower end blade is towards recharge well shaft bottom, therefore exerts pressure downwards to the water entered in recharge well, accelerates to recharge speed, is conducive to raising and recharges efficiency.
Owing to being provided with square hollow ring body groove, inside well lid upper outside, hollow ring body groove and bottom land be equipped with circular water inlet, make water inlet area account for well lid outer surface is long-pending reaches 36% when wellhead assembly appearance and size is constant, water inlet area improves greatly, circular water inlet not only good manufacturability, and make well lid good rigidly; Well lid bottom is waterproof body, can prevent the rain flood initial stage, low discharge, surface water that water quality is relatively poor recharges aquifer.
Described hollow ring body groove can be cuboid or square, this scheme not only good manufacturability, and hollow cavity volume is large, is conducive to the water inlet resistance reducing water inlet.
The bottom land of described hollow ring body groove is flat, and this project plan comparison is easily produced.
The bottom land of described hollow ring body groove is at the bottom of reclinate arc, relative to flat, can increase inflow-rate of water turbine and adapt to low water stage river.
The height that ground at the bottom of river bed or canal is exposed on described well lid top is 0.2 ~ 0.5m, and the river that wellhead assembly can be made thus to be applicable to is wider, and obtains and best recharge effect, improves the steadiness of wellhead assembly simultaneously.
Described well lid top has along current direction and the gradient is the inclined-plane of 1%, can reduce current or sandstone to the impact at well lid top and friction, favourable to the life-span of improving wellhead assembly, also can prevent low water stage waste water injection simultaneously.
Based on such scheme, the invention has the beneficial effects as follows:
This device self has the dual-use function that in filtered water, granule foreign and surface water recharge, except well lid end face, outside lateral surface water inlet, medial surface and the bottom surface of square hollow ring body groove also can intake, make water inlet area account for well lid outer surface is long-pending reaches 36% when wellhead assembly appearance and size is constant, increase the amount of recharging, and there is the function preventing low water stage waste water injection, also there is anti-filter function and certain anti-silting impact resistance, extend the application life of recharging pond, construction costs and commonly recharge pond quite or slightly high, but can reduce under the condition of the amount of recharging equally and recharge pond volume, the occupation of land of more than 3/4 can be saved.
More outstanding is, the power that the pressing mechanism that the present invention is arranged utilizes current to provide on the one hand is to drive lower blade, the water entered in recharge well is exerted pressure downwards, moisture is overcome only relies on gravity by the resistance of sandstone filler and soil particle, improve the infiltration capacity of unit interval, improve and recharge efficiency; On the other hand, because the flow of river and flow velocity have intermittence, the lower blade of pressing mechanism is caused also to present suddenly big or suddenly small form to the downward applied pressure of the water entered in recharge well thus, this is unimpeded very important for the passage of water kept between sandstone filler and soil particle, and the suddenly big or suddenly small pressure of this applying is simultaneously for improving the permeability of soil compared to not applying pressure or providing the pressure result of continued for constant all outstanding.
The invention solves this area improve the amount of recharging and ensure the intensity of wellhead assembly and the long-standing problem of reliability, solving intermittent river and recharge problem fast, laying a good foundation for certainly oozing recharge well scale development.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, invention is further illustrated.
Fig. 1 is the schematic three dimensional views of square wellhead assembly;
Fig. 2 is the vertical cross section schematic diagram of square wellhead assembly;
Fig. 3 is the horizontal profile A-A cross section, top of the square wellhead assembly of Fig. 2;
Fig. 4 is square ring body horizontal profile B-B cross section of the square wellhead assembly of Fig. 2;
Fig. 5 is square ring body horizontal profile C-C cross section of the square wellhead assembly of Fig. 2;
Fig. 6 is cube horizontal profile D-D cross section of the square wellhead assembly of Fig. 2;
Fig. 7 is the side vertical cross section E-E cross section of the square wellhead assembly of Fig. 3;
Fig. 8 is the side vertical cross section F-F cross section of the square wellhead assembly of Fig. 3.
Fig. 9 is the embodiment of band pressure water structure of the present invention.
In figure: 1 well lid, 11 well lid tops, 12 well lid bottoms, 3 geotechnical fibre filter layers, 4 well lid end face water inlets, 5 well lid lateral wall water inlets, 6 well lid inside wall water inlets, 7 bottom land water inlets, 8 recharge wells, 9 recharge well filter materials, ground at the bottom of 10 river bed or canal, 201 upper end blades, 202 supports, 203 upper bearing (metal)s, 204 lower bearings, 205 vertical shafts, 206 lower end blades.
Detailed description of the invention
In Fig. 1-8, inside and outside this kind, water inlet is from oozing anti-filter recharge well wellhead assembly, and relate to recharge well 8 and wellhead assembly thereof, wellhead assembly covers in above recharge well 8, be provided with recharge well filter material 9 in the outside of recharge well 8, described recharge well 8 is positioned at ground less than 10 at the bottom of river bed or canal.
Wellhead assembly comprises well lid 1 and geotechnical fibre filter layer 3.
The well lid top 11 of described well lid 1 with water inlet forms with the well lid bottom 12 being embedded in below ground at the bottom of river bed or canal, and well lid 1 entirety is hollow bottomless four sides cylinder, and its horizontal section can be square, also can be rectangle.Well lid 1 center upper portion is provided with the square hollow ring body groove of band bottom land, is provided with circular water inlet, i.e. well lid end face water inlet 4 and well lid lateral wall water inlet 5 in well lid upper outside; Be equipped with circular water inlet at well upper part of the cover hollow ring body groove inside wall and bottom land, and correspond to well lid inside wall water inlet 6 and bottom land water inlet 7.The sidewall of well lid bottom 12 is waterproof body.
Geotechnical fibre filter layer 3 to be arranged at outside well lid and with well lid outside and the shape of hollow ring body groove match.Geotechnical fibre filter layer 3 is made up of the geotextile with anti-filter function, match with well lid outer shape, top is had not have the end, can be enclosed within well lid, and be fixed on well lid sidewall bottom position, cover the part with water inlet, comprise and cover hollow ring body groove outer wall and bottom land, filtration.
Owing to being provided with the square hollow ring body groove of band bottom land, circular water inlet is equipped with at well lid upper outside, hollow ring body groove inside wall and bottom land, make water inlet area account for well lid outer surface is long-pending reaches 36% when wellhead assembly appearance and size is constant, and water inlet area improves greatly.Described well lid bottom is waterproof body, can prevent the rain flood initial stage, low discharge, surface water that water quality is relatively poor recharges aquifer.Described geotechnical fibre filter layer to be arranged at outside well lid and to match with the shape of hollow ring body groove, and geotechnical fibre filter layer can be made to be combined closely with hollow ring body groove, improves the geotechnical fibre filter layer life-span.Circular water inlet not only good manufacturability, and make well lid good rigidly.
Described well lid top has along current direction and the gradient is the inclined-plane of 1%, can reduce current or sandstone to well lid top impact and friction, favourable to the life-span of improving wellhead assembly, also can prevent low water stage waste water injection simultaneously.
The material of well lid 1 can adopt hard plastics or metal material etc., and entirety is the bottomless cuboid of hollow or cubical cylinder.The buried height of well lid 1 should be able to ensure the stability of well lid, and the height that ground at the bottom of river bed or canal is exposed on the top of wellhead assembly is 0.2 ~ 0.5m, and the river that wellhead assembly can be made thus to be applicable to is wider, improves the steadiness of wellhead assembly simultaneously.
The bottom land of hollow ring body groove is flat, and this project plan comparison is easily produced.Certainly also can be at the bottom of reclinate arc, relative to flat, inflow-rate of water turbine can be increased and adapt to low water stage river.
During construction, the first step beats recharge well 8 according to a conventional method, settles concrete filter pipe (main body of recharge well 8), filling recharge well filter material 9 outside concrete filter pipe, and carries out the techniques such as well-flushing, complete the construction of recharge well; Second step adopts the method for prefabricated or outer committee processing customized, manufactures wellhead assembly and geotechnical fibre filter layer 3; 3rd step adopt dig, lift, fill out, the method for compacting, wellhead assembly is fixed on recharge well desired location; Geotechnical fibre filter layer 3 is placed on well lid 1 by the 4th step, covers the part of all fenestrated, and is fixed by geotechnical fibre filter layer 3 in well lid bottom with pressing plate, steel nail etc.
This scheme, except having foregoing advantages of the present invention, adopting square inside and outside water inlet from oozing anti-filter recharge well wellhead assembly, also have good manufacturability, and hollow cavity volume is large, is conducive to the advantage of the water inlet resistance reducing water inlet.
Fig. 9 gives the present invention the another kind of embodiment with setting-out mechanism.
Arrange a setting-out mechanism in hollow ring body groove, described setting-out mechanism comprises the support 202 of the level be fixed on hollow ring body groove inside wall, sets a upper bearing (metal) 203 in described support 202; Described support 202 can have various structures form, and such as upper bearing (metal) is set at middle part, and periphery is connected as a single entity by the well lid 1 of multiple connecting rod or junction plate and left antithesis body and right antithesis body, to support setting-out mechanism.
At the bottom land of hollow ring body groove except being provided with inlet opening, also be provided with a lower bearing and through hole is installed, the lower bearing 204 of one and upper bearing (metal) concentric is set in this through hole, one vertical shaft 205 is by after described upper bearing (metal) 203 and lower bearing 204, vertical shaft upper end is by connecting upper end blade 201 after geotechnical fibre filter layer 3, and vertical shaft lower end connects the lower end blade 206 flowed to as towards recharge well shaft bottom.Lower end blade 206 adopts axial flow pump blade inner, and upper end blade 201 adopts turbine blade, and the two is prior art.
Upper end blade 201 rotates and drives lower end blade 206 synchronous axial system via vertical shaft 205 under flow action, the flow direction due to lower end blade is the direction towards recharge well shaft bottom, therefore the water entered in recharge well is exerted pressure downwards, speed is recharged in acceleration, be conducive to raising and recharge efficiency, this recharges remarkably productive for ephermeral stream (rainwater).
The connecting rod of setting-out mechanism or junction plate can be exposed.
The connecting rod of setting-out mechanism or junction plate also can utilize geotechnical fibre filter layer 3 coated, in such cases, should between connecting rod or junction plate and the both-side opening place of elongated slot set up multiple support bars for supporting geotechnical fibre filter layer, on the connecting rod that support bar can be connected to setting-out mechanism or junction plate, also can be connected on well lid 1, it prevents geotechnical fibre filter layer from sinking.This clad structure, can reduce the deposition of sandstone at the bottom land of hollow ring body groove, affect the normal work of vertical shaft 205, improve the reliability of setting-out institution staff.
When implementing above-mentioned setting-out mechanism, the bottom land of hollow ring body groove is preferably flat, is convenient to like this install lower bearing.When allowing, when the bottom land of hollow ring body groove is arc, also can implement.
Certainly, the present invention is not limited to the limited range of above-described embodiment.The improvement of any adaptation carried out on basis of the present invention, does not all depart from thought of the present invention, all falls in the scope of protection of the invention.
Except the technical characteristic described in manual, be the known technology of those skilled in the art.
Claims (7)
1. a square inside and outside water inlet is from oozing anti-filter recharge well wellhead assembly, described wellhead assembly comprises well lid and is fixedly installed on the geotechnical fibre filter layer outside well lid, it is characterized in that, described well lid is made up of with the well lid bottom being embedded in below ground at the bottom of river bed or canal the well lid top of the band water inlet arranged in hollow ring body groove, well lid entirety is the bottomless square cylinder of hollow, and the hollow ring body groove that described well lid center upper portion is provided with is the square body with bottom land; Inside well lid upper outside, hollow ring body groove and bottom land be equipped with circular water inlet; Described well lid bottom is waterproof body; Described geotechnical fibre filter layer to be arranged at outside well lid and with well lid outside and the shape of hollow ring body groove match; Arrange a setting-out mechanism in described hollow ring body groove, described setting-out mechanism comprises the horizontal stand be fixed on hollow ring body groove inwall, sets a upper bearing (metal) in described support; In the bottom land through hole of hollow ring body groove, set a lower bearing concentric with upper bearing (metal), a vertical shaft is by after described upper bearing (metal) and lower bearing, and connection upper end, vertical shaft upper end blade, vertical shaft lower end connects the lower end blade flowed to as towards recharge well shaft bottom.
2. square inside and outside water inlet according to claim 1 is from oozing anti-filter recharge well wellhead assembly, and it is characterized in that, described hollow ring body groove is square.
3. square inside and outside water inlet according to claim 1 is from oozing anti-filter recharge well wellhead assembly, and it is characterized in that, described hollow ring body groove is cuboid.
4. according to one of any described square inside and outside water inlet of claims 1 to 3 from oozing anti-filter recharge well wellhead assembly, it is characterized in that, the bottom land of described hollow ring body groove is flat.
5. according to one of any described square inside and outside water inlet of claims 1 to 3 from oozing anti-filter recharge well wellhead assembly, it is characterized in that, the bottom land of described hollow ring body groove is at the bottom of reclinate arc.
6. square inside and outside water inlet according to claim 1 is from oozing anti-filter recharge well wellhead assembly, and it is characterized in that, the height that ground at the bottom of river bed or canal is exposed on described well lid top is 0.2 ~ 0.5m.
7. square inside and outside water inlet according to claim 1 is from oozing anti-filter recharge well wellhead assembly, and it is characterized in that, described well lid top has along current direction and the gradient is the inclined-plane of 1%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410365808.XA CN104110052B (en) | 2014-07-29 | 2014-07-29 | Square internal-external water inflow type wellhead device of infiltration recharge well |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410365808.XA CN104110052B (en) | 2014-07-29 | 2014-07-29 | Square internal-external water inflow type wellhead device of infiltration recharge well |
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| CN104110052A CN104110052A (en) | 2014-10-22 |
| CN104110052B true CN104110052B (en) | 2015-07-01 |
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| CN105507364A (en) * | 2016-01-18 | 2016-04-20 | 济南大学 | Well head device for both square reverse filtering recharging and water pumping |
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| CN2440843Y (en) * | 2000-09-22 | 2001-08-01 | 王大港 | Environment protecting color multifunctional rubber plastic manhole cover |
| ITVR20030050U1 (en) * | 2003-10-15 | 2005-04-16 | Dakota Metal Plastic Works Llc | MODULAR CHANNEL PROVIDED WITH MEANS THAT ALLOW THE QUICK RELEASE AND RELEASE OF ADDITIONAL COMPONENTS THAT COMPLETE IT |
| JP4202899B2 (en) * | 2003-11-19 | 2008-12-24 | 株式会社オキナヤ | Fixing method for existing lid and drill device used for this fixing method |
| KR100912738B1 (en) * | 2005-01-06 | 2009-08-18 | 첸 충 친 | Hand held shower head with filter replacing pre-alarm assembly |
| CN2809055Y (en) * | 2005-04-19 | 2006-08-23 | 李广森 | Auxiliary fittings for environmental protection manhole covers |
| CN2784460Y (en) * | 2005-04-28 | 2006-05-31 | 孙海军 | High-covered, multi-porous and double-layered deep recharge well |
| CN1699704A (en) * | 2005-07-13 | 2005-11-23 | 梁彬 | Greening wellhead |
| CN2934441Y (en) * | 2006-04-10 | 2007-08-15 | 三峡大学 | Block-proof cover for roofing rain pipe |
| CN101476335A (en) * | 2009-01-21 | 2009-07-08 | 杜永胜 | Energy-saving emission-reduction environment-friendly sanitary waterproof airtight and fire resistant well loop, well cover and its implementing method |
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