CN207144103U - A kind of modified Loess filtration system of purifying rainwater - Google Patents
A kind of modified Loess filtration system of purifying rainwater Download PDFInfo
- Publication number
- CN207144103U CN207144103U CN201720033219.0U CN201720033219U CN207144103U CN 207144103 U CN207144103 U CN 207144103U CN 201720033219 U CN201720033219 U CN 201720033219U CN 207144103 U CN207144103 U CN 207144103U
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- Prior art keywords
- backwash
- cistern
- filter
- water
- inlet pipe
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/30—Flood prevention; Flood or storm water management, e.g. using flood barriers
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Abstract
A kind of modified Loess filtration system of purifying rainwater is the utility model is related to, the system includes rainwater collection pool and the continuous filter to link together.Continuous filter connects cistern I, and the cistern I connects cistern II, III；Lid is set at the top of continuous filter, lid side sets up water inlet pipe, cable tube separately on this, and the lid divides into crossbeam；Sprinkler head is hung with crossbeam；Continuous filter bottom side sets up backwash water inlet pipe, backwash air inlet pipe separately, and opposite side sets diafiltration water outlet connecting tube, the uniform filter sleeve in its upside；Diafiltration water outlet connecting tube connects pond, and the discharge bay is connected with cistern I；It is made up of from top to bottom modified Loess filter material layer, quartzy sand filter blanket, gravel supporting layer, filter in continuous filter；Quartzy sand filter blanket uniformly backwashes apopore；Backwash water leg and continuous filter connect backwash discharge bay respectively, and the backwash discharge bay even backwashes cistern；Backwash cistern is connected by backwashing outlet pipe with rainwater collection pool.The utility model cost is low, high treating effect.
Description
Technical field
Rainwater and technical field of sewage are the utility model is related to, more particularly to a kind of modified Loess of purifying rainwater oozes
Filter system.
Background technology
The essence in sponge city is to change traditional cities to build theory, realizes the coordinated development with resource environment.In " success
" when reaching peak, people get used to defeating nature, surmount nature, the urban construction pattern of nature remodeling industrial civilization, as a result
Cause serious urban disease and ecocrisis；And what sponge city followed is the low influence for complying with the nature, coexisting with natural harmony
Development model.After traditional cities are built up, flow path surface is significantly increased, and sponge city is built up rear flow path surface and can kept not
Become.Therefore, again under the overall background of urbanization, China has more than 1,000 ten thousand people to go down town every year for sponge urban construction, newly-built into being claimed
Design and low influence exploitation are influenceed to be low（Low Impact Development）.
LID is low, and influence exploitation is a kind of ecological technique system that can easily realize urban rainwater collection and utilize, and its key exists
In collection in situ, self-purification, nearby utilization or cover underground water.Mainly include：Grass-planting ecological ditch, concave herbaceous field, rainwater
Garden, Green Roof, underground store ooze, porous pavement.The low exploitation storm-water system that influences can effectively cut down runoff rate, collect
Substantial amounts of rainwater, effectively alleviates urban waterlogging.Meanwhile the low exploitation storm-water system that influences has good economic benefit, Environmental Effect
Benefit and social benefit.
The experimental study and engineer applied of existing many subsurface wastewater infiltration systems, conventional filtrate have quartz sand, nothing both at home and abroad
Bituminous coal, garnet, ilmenite, magnetic iron ore, diamond dust etc..But filtrate used in these researchs and application is not modified yellow
Soil.
Loess is the special type soil formed under arid climatic conditions, and distribution is quite extensive in the world, accounts for the whole world
The 1/10 of land area.China is the country that loess distribution is most wide in the world, thickness is maximum, and the distribution gross area is territory total area
6.6% or so, wherein being concentrated the most with Loess Plateau.The Northwest's loess soil soil parent material is mainly evening renewal
Generation Malan loess, soil property is in tiny powdered granule, short texture, soluble salt content is high, usually contains machine matter 0.7%-1.5%, is sought
Support and lack and easily occur soil erosion.The loess of engineer applied is the common loess in the Northwest, belongs to sierozem, quality is with powder
（0.005mm-0.075mm）Based on, account for 80%.Natural air drying crosses 1.25mm sieves after soil sampling, then packs standby.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of modification of low, the simple in construction purifying rainwater of cost
Loess filtration system.
To solve the above problems, a kind of modified Loess filtration system of purifying rainwater described in the utility model, its feature
It is：The system includes the rainwater collection pool to link together and the continuous filter provided with backwash water leg；The continuous filter connects
There is cistern I, the cistern I is sequentially connected with cistern II, cistern III by cistern connecting tube；The cistern I is provided with
Cistern outlet pipe；The top of the continuous filter is provided with upper lid, and side of lid is respectively equipped with water inlet pipe, cable tube on this, the lid
Under be arranged with four crossbeams；Equally distributed several sprinkler heads are hung with the crossbeam, several sprinkler heads with it is described enter
Water pipe communicates；The bottom side of the continuous filter is respectively equipped with backwash water inlet pipe, backwash air inlet pipe, and its opposite side, which is provided with, to be oozed
Water connecting tube is filtered out, its upside is evenly equipped with several filter sleeves；The diafiltration water outlet connecting tube is connected with discharge bay, and the discharge bay leads to
Apopore is crossed with the cistern I to be connected；From top to bottom by modified Loess filter material layer, quartzy sand filter blanket, gravel in the continuous filter
Stone supporting layer, filter composition；The wall periphery of the quartzy sand filter blanket is evenly equipped with several backwash apopores, several recoils
Water hole is washed out with the backwash water leg to be connected；The backwash water leg and the continuous filter are washed out by recoiling respectively
Water connecting tube is connected with backwash discharge bay, and the backwash discharge bay is connected with backwash cistern by backwashing water outlet communicating pipe；
The backwash cistern is provided with backwash outlet pipe, and the backwash outlet pipe passes through water pump and the rainwater collection pool phase
Even.
The modified Loess filter material layer presses 3 by loess and quartz sand：7~2：8 volume ratio mixes, and its thickness is
300mm。
The particle diameter of the loess is 0.25 ~ 0.5mm.
The effective grain size of the quartz sand is 0.5mm.
The thickness of the quartzy sand filter blanket is 500mm, and the effective grain size of its quartz sand laid is 0.3mm.
The gravel that the gravel supporting layer is 16mm ~ 32mm with particle diameter by the quartz sand that particle diameter is 8mm ~ 16mm presses 2：1
Volume ratio mixes, and its thickness is 150mm.
The filter is provided with the short-handled filter head that 30 length are 150mm.
The backwash apopore is made of rubber diaphragm.
The rainwater collection pool is connected by the water inlet pipe with the continuous filter.
The water inlet pipe, diafiltration water outlet connecting tube, cistern connecting tube, cistern outlet pipe, backwash water inlet pipe, recoil
Wash air inlet pipe, backwash water outlet connecting tube, backwash water outlet communicating pipe, be equipped with control valve on backwash outlet pipe.
The utility model has advantages below compared with prior art：
1st, needs of the utility model based on LID technologies, first layer filtrate are modified Loess, and material source is extensively and valency
Lattice are cheap, not only efficiently utilize natural loess resource, are prepared for modified Loess filtrate, and instead of quartz sand, smokeless
The filtrates such as coal, garnet, ilmenite, magnetic iron ore, diamond dust, so as to effectively reduce the production cost of filtrate.
2nd, the utility model is provided with air-water backwashing, can carry out air-water backwashing to it after a period of time is run,
Continuous filter can recycle.
3rd, the utility model perforate around second layer quartz sand filter blanket, backwash water leg is set to be flowed into by backwashing water
Backwash cistern.Wherein backwash apopore uses rubber diaphragm, can be automatically turned on according to pressure.
4th, the utility model is provided with three cisterns, and being connected wherein between cistern by cistern connecting tube expands
Water storage volume and its height is identical with the bottom of modified Loess layer, can also store to get off after such dmp filter, not under
The plant that first layer is planted when rain arid also has moisture to absorb, and when the water level of its cistern is too low, passes through grading
Capillarity is controlled, moisture can also be under capillary action from cistern to gravel layer again to quartz sand layer finally to modified Loess
Layer, is absorbed by root system of plant.
5th, the utility model has water pump to be connected between backwash cistern and rainwater collection pool, and backwashing water is by backwashing
Cistern flow to rainwater collection pool, then flow to continuous filter by rainwater collection pool, recycles.
6th, the apopore in the utility model can be refiltered effectively to water outlet, improve effluent quality.
7th, the utility model is simple in construction, cost is cheap.
Brief description of the drawings
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the profile of continuous filter in the utility model.
Fig. 3 is the top view covered in the utility model on continuous filter.
Fig. 4 is the profile of continuous filter bottom in the utility model.
Fig. 5 is the profile of quartzy sand filter blanket in the utility model.
In figure：1-modified Loess filter material layer；2-quartzy sand filter blanket；3-gravel supporting layer；4-filter；5-water inlet
Pipe；6-cable tube；7-crossbeam；8-filter sleeve；9-diafiltration water outlet connecting tube；10-discharge bay；11-apopore；12—
Cistern I；13-cistern II；14-cistern III；15-cistern connecting tube；16-cistern outlet pipe；17-recoil
Wash water inlet pipe；18-backwash air inlet pipe；19-backwash apopore；20-backwash water leg；21-backwash water outlet connects
Adapter；22-continuous filter；23-backwash discharge bay；24-backwash water outlet communicating pipe；25-backwash cistern；26-anti-
Rinse outlet pipe.
Embodiment
As shown in Fig. 1 ~ 5, a kind of modified Loess filtration system of purifying rainwater, the system includes the rainwater to link together
Collecting pit and the continuous filter 22 provided with backwash water leg 20.Continuous filter 22 is connected with cistern I 12, and the cistern I 12 passes through storage
Pond connecting tube 15 is sequentially connected with cistern II 13, cistern III 14；Cistern I 12 is provided with cistern outlet pipe 16.
The top of continuous filter 22 is provided with upper lid, and side of lid is respectively equipped with water inlet pipe 5, cable tube 6 on this, symmetrical under the lid
Provided with four crossbeams 7；Equally distributed several sprinkler heads are hung with crossbeam 7, several sprinkler heads communicate with water inlet pipe 5；Ooze
The bottom side in filter tank 22 is respectively equipped with backwash water inlet pipe 17, backwash air inlet pipe 18, and its opposite side is provided with diafiltration water outlet and connected
Adapter 9, its upside are evenly equipped with several filter sleeves 8；Diafiltration water outlet connecting tube 9 is connected with discharge bay 10, and the discharge bay 10 is by going out
Water hole 11 is connected with cistern I 12.
From top to bottom by modified Loess filter material layer 1, quartzy sand filter blanket 2, gravel supporting layer 3,4 groups of filter in continuous filter 22
Into；The wall periphery of quartzy sand filter blanket 2 is evenly equipped with using several backwash apopores 19, several recoils made of rubber diaphragm
Water hole 19 is washed out with backwash water leg 20 to be connected；Backwash water leg 20 and continuous filter 22 are connected by backwashing water outlet respectively
Adapter 21 is connected with backwash discharge bay 23, and the backwash discharge bay 23 is connected with backwash water storage by backwashing water outlet communicating pipe 24
Pond 25；Backwash cistern 25 and be provided with backwash outlet pipe 26, the backwash outlet pipe 26 passes through water pump and rainwater collection pool
It is connected.
Wherein：Modified Loess filter material layer 1 presses 3 by loess and quartz sand：7~2：8 volume ratio mixes, and its thickness is
300mm.The particle diameter of loess is 0.25 ~ 0.5mm.The effective grain size of quartz sand is 0.5mm.
The thickness of quartzy sand filter blanket 2 is 500mm, and the effective grain size of its quartz sand laid is 0.3mm.
The gravel that gravel supporting layer 3 is 16mm ~ 32mm with particle diameter by the quartz sand that particle diameter is 8mm ~ 16mm presses 2：1 volume
Than mixing, its thickness is 150mm.
Filter 4 is provided with the short-handled filter head that 30 length are 150mm.
Rainwater collection pool is connected by water inlet pipe 5 with continuous filter 22.
Water inlet pipe 5, diafiltration water outlet connecting tube 9, cistern connecting tube 15, cistern outlet pipe 16, backwash water inlet pipe 17,
Backwash air inlet pipe 18, backwash water outlet connecting tube 21, backwash water outlet communicating pipe 24, control is equipped with backwash outlet pipe 26
Valve processed.
Operation of the present utility model can be divided into two parts of diafiltration and backwash：
Infiltration process is：The rainwater of rainwater collection pool enters continuous filter 22 from the water inlet pipe 5 in Fig. 3, by modified Loess
Filter material layer 1, quartzy sand filter blanket 2, gravel supporting layer 3, the filter 4 with short-handled filter head flow to the bottom of continuous filter 22.Again by Fig. 4
In the discharge bay 10 that enters in Fig. 1 of diafiltration water outlet connecting tube 9, then the cistern I flowed into by the apopore 11 in Fig. 1 in Fig. 1
12（Cistern I 12, cistern II 13 and cistern III 14 are connected by cistern connecting tube 15）.Finally by the water storage in Fig. 1
Pond outlet pipe 16 is discharged, and diafiltration is completed.
Backwash process is：First the diafiltration water outlet connecting tube 9 in Fig. 1 is closed during backwash, as shown in figure 4, backwash
Air water enters continuous filter 22 from backwash water inlet pipe 17 and backwash air inlet pipe 18, and gravel supporting layer 3 is flow to by short-handled filter head,
Quartzy sand filter blanket 2 is flow to again, the backwash water leg 20 then being flow to from the backwash apopore 19 in Fig. 5 in Fig. 1, is passed through successively
Backwash water outlet connecting tube 21, backwash discharge bay 23 in Fig. 1, backwash flow into backwash cistern water outlet communicating pipe 24
25, rainwater collection pool finally is evacuated to by water pump by backwash outlet pipe 26, backwash is completed.Wherein air blasting intensity is 15L/
（s.m 2 ）, washing time 4min；Water rushes intensity as 4L/（s.m 2 ）, washing time 4min.
Claims (5)
- A kind of 1. modified Loess filtration system of purifying rainwater, it is characterised in that：The system includes the rainwater collection to link together Ji Chi and provided with backwash water leg（20）Continuous filter（22）；The continuous filter（22）It is connected with cistern I（12）, the cistern Ⅰ（12）Pass through cistern connecting tube（15）It is sequentially connected with cistern II（13）, cistern III（14）；The cistern I（12）If There is cistern outlet pipe（16）；The continuous filter（22）Top be provided with upper lid, side of lid is respectively equipped with water inlet pipe on this （5）, cable tube（6）, four crossbeams are arranged with this under lid（7）；The crossbeam（7）On be hung with equally distributed several water Shower nozzle, several sprinkler heads and the water inlet pipe（5）Communicate；The continuous filter（22）Bottom side be respectively equipped with backwash into Water pipe（17）, backwash air inlet pipe（18）, its opposite side, which is provided with, is percolated water outlet connecting tube（9）, its upside is evenly equipped with several filters Sleeve（8）；The diafiltration water outlet connecting tube（9）It is connected with discharge bay（10）, the discharge bay（10）Pass through apopore（11）With it is described Cistern I（12）It is connected；The continuous filter（22）Inside from top to bottom by modified Loess filter material layer（1）, quartzy sand filter blanket（2）, gravel Stone supporting layer（3）, filter（4）Composition；The quartzy sand filter blanket（2）Wall periphery be evenly equipped with several backwash apopores （19）, several backwash apopores（19）With the backwash water leg（20）It is connected；The backwash water leg（20） With the continuous filter（22）Respectively by backwashing water outlet connecting tube（21）It is connected with backwash discharge bay（23）, the backwash water outlet Pond（23）By backwashing water outlet communicating pipe（24）It is connected with backwash cistern（25）；The backwash cistern（25）It is provided with Backwash outlet pipe（26）, the backwash outlet pipe（26）It is connected by water pump with the rainwater collection pool.
- A kind of 2. modified Loess filtration system of purifying rainwater as claimed in claim 1, it is characterised in that：The quartzy sand filtration Layer（2）Thickness be 500mm, its effective grain size of quartz sand laid is 0.3mm.
- A kind of 3. modified Loess filtration system of purifying rainwater as claimed in claim 1, it is characterised in that：The filter （4）It is provided with the short-handled filter head that 30 length are 150mm.
- A kind of 4. modified Loess filtration system of purifying rainwater as claimed in claim 1, it is characterised in that：The rainwater-collecting Pond passes through the water inlet pipe（5）With the continuous filter（22）It is connected.
- A kind of 5. modified Loess filtration system of purifying rainwater as claimed in claim 1, it is characterised in that：The water inlet pipe （5）, diafiltration water outlet connecting tube（9）, cistern connecting tube（15）, cistern outlet pipe（16）, backwash water inlet pipe（17）, recoil Wash air inlet pipe（18）, backwash water outlet connecting tube（21）, backwash water outlet communicating pipe（24）, backwash outlet pipe（26）On be all provided with There is control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720033219.0U CN207144103U (en) | 2017-01-12 | 2017-01-12 | A kind of modified Loess filtration system of purifying rainwater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720033219.0U CN207144103U (en) | 2017-01-12 | 2017-01-12 | A kind of modified Loess filtration system of purifying rainwater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207144103U true CN207144103U (en) | 2018-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720033219.0U Expired - Fee Related CN207144103U (en) | 2017-01-12 | 2017-01-12 | A kind of modified Loess filtration system of purifying rainwater |
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| CN (1) | CN207144103U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108301483A (en) * | 2017-01-12 | 2018-07-20 | 兰州理工大学 | A kind of modified Loess filtration system of purifying rainwater |
-
2017
- 2017-01-12 CN CN201720033219.0U patent/CN207144103U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108301483A (en) * | 2017-01-12 | 2018-07-20 | 兰州理工大学 | A kind of modified Loess filtration system of purifying rainwater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180327 Termination date: 20220112 |
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| CF01 | Termination of patent right due to non-payment of annual fee |