CN104110052A - 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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- CN104110052A CN104110052A CN201410365808.XA CN201410365808A CN104110052A CN 104110052 A CN104110052 A CN 104110052A CN 201410365808 A CN201410365808 A CN 201410365808A CN 104110052 A CN104110052 A CN 104110052A
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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 recharging for self-leak type free groundwater, particularly a kind of square inside and outside water inlet, from oozing anti-filter recharge well wellhead assembly, belongs to water conservation technical field.
Background technology
The water conservation or how to prevent because of the inwelling that exhaustive exploitation underground water causes it being the key subjects of restriction local people life and economic development in coastal area how in the area of some lack of water, and the means that solve this problem are except strengthening people's consciousness of saving water, effectively utilizing rain flood resource is also one of important measures.
In order to make full use of rain flood resource, there is no, in the ephemeral stream of pollution or light contamination, usually to arrange a kind of recharge well self with particulate contamination function in filtered water,, from oozing recharge well, also claim anti-filter recharge well, machine seepage well.What adopt at present oozes anti-filter recharge well certainly by recharging pond and common recharge well forms, wherein recharging pond and be conventionally embedded in undergroundly, is the shape of falling Sifangtai or circle, dark 1m left and right, Cast-in-situ Piles in Sand-filling, rubble two-stage filter material in pond, for filtering river and river being recharged to recharge well; Recharge well is positioned at and recharges in the middle of bottom, pond, is columned cavity, and its well head is added a cover one and is with perforated concrete well cover, when river process is recharged top, 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 the problem that recharge well exists be: at the bottom of 1, certainly oozing recharge well and being placed in river bed or canal, very easily silting and being washed out by current, affects application life; 2, recharge pond and be embedded in undergroundly, only recharge one of the pond end face section of freely intaking, for ensureing enough amounts of recharging, recharging pond needs larger cross sectional area, and great in constructing amount; 3, build a common pond of recharging and need backfill 10m
3sand, the rubble of left and right, consume a large amount of constructional materialss; 4, the use of concrete well cover has affected 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 bring into play to greatest extent its water conservation usefulness.
Chinese patent 201220458416.4 discloses a kind of multiaspect water inlet from oozing anti-filter recharge well wellhead assembly, it is on recharge well, to be provided with a wellhead assembly covering in above well head, and described wellhead assembly comprises well lid and is fixedly installed on the geotechnical fibre filter layer in well lid outside; Described well lid is made up of the top cover with top cover aperture and the hard sidewall that is vertically connected at top cover surrounding; Described sidewall is made up of without bore portion superposed sidewall meshed portion and the sidewall that is positioned at bottom, geotechnical fibre filter layer is by coated to top cover and sidewall meshed portion, sidewall is embedded in below ground at the bottom of river bed or canal without bore portion bottom, sidewall exposes without bore portion middle and upper part, and the top cover upper surface of described well lid is inclined plane.This device part solves the problem that above-mentioned prior art exists, and there is the larger section of freely intaking, prevent the function that low water stage sewage recharges, 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 saved sandstone filter material.
But, because most of rainfalls belong to shower, rainwater overcurrent time in river is short, only rely on permeable hole on top cover and sidewall cannot meet the needs of the amount of recharging, the size that researcher also attempts to increase permeable hole increases water amount, but the size of permeable hole increases, not only reduce the intensity of wellhead assembly, and the intensity of geotechnical fibre filter layer is also had higher requirement, otherwise sandstone very easily damage geotechnical fibre filter layer to the impact of geotechnical fibre filter layer, the sandstone that enter recharge well can cause recharge well water seepage function to reduce; Also the technician who has attempts the quantity of the permeable hole that increases wellhead assembly, and the quantity that increases 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 that oozes 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, in the situation that wellhead assembly appearance and size is constant, can obviously improves and recharge pond conveyance capacity, anti-silting impact resistance, has extended 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 in well lid outside, it is characterized in that, described well lid is made up of the well lid bottom of below ground at the bottom of being the well lid top with water inlet of hollow ring body groove setting and being embedded in river bed or canal, 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; Be equipped with circular water inlet at well lid upper outside, hollow ring body groove inner side and bottom land; Described well lid bottom is waterproof body; Described geotechnical fibre filter layer is arranged at well lid outside and matches with the shape of well lid outside and hollow ring body groove; In described hollow ring body groove, a setting-out mechanism is set, described setting-out mechanism comprises the horizontal stand being 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 passes through after described upper bearing (metal) and lower bearing, connection upper end, vertical shaft upper end blade, and vertical shaft lower end connects the lower end blade flowing to as towards recharge well shaft bottom.Blade rotatable lower end blade synchronization that drives under flow action in upper end is rotated, and because the flow direction of lower end blade is towards recharge well shaft bottom, therefore the water entering in recharge well is exerted pressure downwards, accelerates to recharge speed, is conducive to improve and recharges efficiency.
Owing to being provided with square hollow ring body groove, be equipped with circular water inlet at well lid upper outside, hollow ring body groove inner side and bottom land, in the situation that wellhead assembly appearance and size is constant, make water inlet area account for that well lid outer surface is long-pending reaches 36%, water inlet area improves greatly, not only good manufacturability of circular water inlet, and make well lid good rigidly; Well lid bottom is waterproof body, can prevent rain flood initial stage, low discharge, the relatively poor surface water of water quality recharges aquifer.
Described hollow ring body groove can be cuboid or square, not only good manufacturability of this scheme, and also hollow cavity volume is large, is conducive to reduce the water inlet resistance of water inlet.
The bottom land of described hollow ring body groove is flat, and this scheme ratio is easier to produce.
At the bottom of the bottom land of described hollow ring body groove is reclinate arc, with respect to flat, can increase inflow-rate of water turbine and adapt to low water stage river.
The height that Huo Qudi ground, river bed is exposed on described well lid top is 0.2～0.5m, can make thus the applicable river of wellhead assembly wider, and obtain the best effect of recharging, and improves the steadiness of wellhead assembly simultaneously.
The inclined-plane that it is 1% that described well lid top has along current direction and the gradient, can reduce impact and the friction to well lid top of current or sandstone, favourable to improving life-span of wellhead assembly, also can prevent that low water stage sewage from recharging 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, in the situation that wellhead assembly appearance and size is constant, make water inlet area account for that well lid outer surface is long-pending reaches 36%, increase the amount of recharging, and there is the function that prevents that low water stage sewage from recharging, 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 and recharge pond volume under the condition of the amount of recharging equally, can save more than 3/4 occupation of land.
More outstanding is, the pressing mechanism of setting of the present invention utilizes the power that current provide to drive lower blade on the one hand, the water entering in recharge well is exerted pressure downwards, the resistance that moisture is overcome only rely on gravity to pass through sandstone filler and soil particle, improve the infiltration capacity of unit interval, improved and recharged efficiency; On the other hand, because flow and the flow velocity of river have intermittence, cause thus the lower blade of pressing mechanism also to present suddenly big or suddenly small form to the downward applied pressure of water entering in recharge well, this is unimpeded very important for keeping the passage of water between sandstone filler and soil particle, simultaneously this suddenly big or suddenly small pressure applying for the permeability that improves soil than not exerting pressure or providing that to continue constant pressure result all outstanding.
The invention solves this area and improve the amount of recharging and ensure the intensity of wellhead assembly and the long-term puzzlement of reliability, solved intermittent river and recharged fast problem, lay a good foundation for certainly oozing recharge well scale development.
Brief description of the drawings
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 vertical cross section E-E cross section, side of the square wellhead assembly of Fig. 3;
Fig. 8 is vertical cross section F-F cross section, side 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, 10 Huo Qudi ground, river bed, 201 turbine blades, 202 supports, 203 upper bearing (metal)s, 204 lower bearings, 205 vertical shafts, 206 axial flow pump blade inners 206.
Detailed description of the invention
In Fig. 1-8, inside and outside this kind, water inlet, from oozing anti-filter recharge well wellhead assembly, relates to recharge well 8 and wellhead assembly thereof, and wellhead assembly covers in recharge well 8 tops, be provided with recharge well filter material 9 in the outside of recharge well 8, described recharge well 8 is positioned at Huo Qudi ground, river bed below 10.
Wellhead assembly comprises well lid 1 and geotechnical fibre filter layer 3.
The well lid top of described well lid 1 with water inlet 11 and be embedded in river bed or canal at the bottom of the well lid bottom 12 of below ground form, well lid 1 entirety is the bottomless four sides of hollow cylinder, 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 with bottom land, is provided with circular water inlet in well lid upper outside, i.e. well lid end face water inlet 4 and well lid lateral wall water inlet 5; Be equipped with circular water inlet at well upper part of the cover hollow ring body groove inside wall and bottom land, and corresponding 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 is arranged at well lid outside and matches with the shape of well lid outside and hollow ring body groove.Geotechnical fibre filter layer 3 is made up of the geotextile with anti-filter function, match with well lid outer shape, there is top there is no the end, can be enclosed within on well lid, and be fixed on well lid sidewall bottom position, covering has the part of water inlet, comprises and covers hollow ring body groove outer wall and bottom land, filtration.
Due to the square hollow ring body groove being provided with bottom land, be equipped with circular water inlet at well lid upper outside, hollow ring body groove inside wall and bottom land, in the situation that wellhead assembly appearance and size is constant, make water inlet area account for that well lid outer surface is long-pending reaches 36%, water inlet area improves greatly.Described well lid bottom is waterproof body, can prevent rain flood initial stage, low discharge, the relatively poor surface water of water quality recharges aquifer.Described geotechnical fibre filter layer is arranged at well lid outside and matches with the shape of hollow ring body groove, can make geotechnical fibre filter layer be combined closely with hollow ring body groove, improves the geotechnical fibre filter layer life-span.Not only good manufacturability of circular water inlet, and make well lid good rigidly.
The inclined-plane that it is 1% that described well lid top has along current direction and the gradient, can reduce current or sandstone well lid top is impacted and friction, favourable to improving life-span of wellhead assembly, also can prevent that low water stage sewage from recharging 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 Huo Qudi ground, river bed is exposed on the top of wellhead assembly is 0.2～0.5m, can make thus the applicable river of wellhead assembly wider, improves the steadiness of wellhead assembly simultaneously.
The bottom land of hollow ring body groove is flat, and this scheme ratio is easier to produce.Certainly, at the bottom of also can be reclinate arc, with respect to flat, can increase inflow-rate of water turbine and adapt to low water stage river.
When construction, the first step is beaten 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 carry out the techniques such as well-flushing, complete the construction of recharge well; Second step adopts the method for prefabricated or the processing customized of entrusting outward, manufactures wellhead assembly and geotechnical fibre filter layer 3; The 3rd step adopts and digs, lifts, fills out, the method for compacting, and wellhead assembly is fixed on to recharge well desired location; The 4th step is placed on geotechnical fibre filter layer 3 on well lid 1, covers the part of all fenestrated, and in well lid bottom, geotechnical fibre filter layer 3 is fixing with pressing plate, steel nail etc.
This scheme, except having the aforementioned effect of the present invention, adopts 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 that reduces water inlet.
Fig. 9 has provided the embodiment of another kind of the present invention with setting-out mechanism.
One setting-out mechanism is set in hollow ring body groove, and described setting-out mechanism comprises the horizontal stand 202 being 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 for example upper bearing (metal) is set at middle part, and periphery is connected as a single entity by the well lid 1 of multiple connecting rods 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 through hole is installed, in this through hole, set one with the lower bearing 204 of upper bearing (metal) concentric, one vertical shaft 205 is by after described upper bearing (metal) 203 and lower bearing 204, vertical shaft upper end is by the rear connection of geotechnical fibre filter layer 3 upper end blade 201, and vertical shaft lower end connects the lower end blade 206 flowing 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 via vertical shaft 205 and drives lower end blade 206 synchronously to rotate under flow action, because the flow direction of lower end blade is the direction towards recharge well shaft bottom, therefore the water entering in recharge well is exerted pressure downwards, speed is recharged in acceleration, be conducive to improve 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 be between connecting rod or junction plate and the both-side opening place of elongated slot set up the multiple support bars for supporting geotechnical fibre filter layer, support bar can be connected on the connecting rod or junction plate of setting-out mechanism, also can be connected on well lid 1, it prevents that geotechnical fibre filter layer from sinking.This clad structure, can reduce the deposition of sandstone at the bottom land of hollow ring body groove, affects the normal work of vertical shaft 205, has improved the reliability of setting-out mechanism work.
While 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 of carrying 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 characterictic 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 in well lid outside, it is characterized in that, described well lid is made up of the well lid bottom of below ground at the bottom of being the well lid top with water inlet of hollow ring body groove setting and being embedded in river bed or canal, 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; Be equipped with circular water inlet at well lid upper outside, hollow ring body groove inner side and bottom land; Described well lid bottom is waterproof body; Described geotechnical fibre filter layer is arranged at well lid outside and matches with the shape of well lid outside and hollow ring body groove; In described hollow ring body groove, a setting-out mechanism is set, described setting-out mechanism comprises the horizontal stand being 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 passes through after described upper bearing (metal) and lower bearing, connection upper end, vertical shaft upper end blade, and vertical shaft lower end connects the lower end blade flowing to as towards recharge well shaft bottom.
2. square inside and outside water inlet according to claim 1, from oozing anti-filter recharge well wellhead assembly, is characterized in that, described hollow ring body groove is square.
3. square inside and outside water inlet according to claim 1, from oozing anti-filter recharge well wellhead assembly, is characterized in that, described hollow ring body groove is cuboid.
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.
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, at the bottom of the bottom land of described hollow ring body groove is reclinate arc.
6. square inside and outside water inlet according to claim 1, from oozing anti-filter recharge well wellhead assembly, is characterized in that, the height that Huo Qudi ground, river bed is exposed on described well lid top is 0.2～0.5m.
7. square inside and outside water inlet according to claim 1, from oozing anti-filter recharge well wellhead assembly, is characterized in that, the inclined-plane that it is 1% that described well lid top has along current direction and the gradient.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 true CN104110052A (en) | 2014-10-22 |
| CN104110052B CN104110052B (en) | 2015-07-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| CN104110052B (en) | 2015-07-01 |
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