CN211499025U - Rainwater recycling system for sponge city - Google Patents
Rainwater recycling system for sponge city Download PDFInfo
- Publication number
- CN211499025U CN211499025U CN201922055888.XU CN201922055888U CN211499025U CN 211499025 U CN211499025 U CN 211499025U CN 201922055888 U CN201922055888 U CN 201922055888U CN 211499025 U CN211499025 U CN 211499025U
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- China
- Prior art keywords
- layer
- rainwater
- water collecting
- filtering layer
- collecting tank
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- 238000004064 recycling Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 67
- 238000001914 filtration Methods 0.000 claims abstract description 64
- 239000004746 geotextile Substances 0.000 claims abstract description 29
- 239000004575 stone Substances 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 4
- 238000003973 irrigation Methods 0.000 abstract description 4
- 230000002262 irrigation Effects 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- 230000002633 protecting effect Effects 0.000 description 8
- 239000002689 soil Substances 0.000 description 6
- 229910001385 heavy metal Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000012466 permeate Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241001464837 Viridiplantae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000005080 plant death Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
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Classifications
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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
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
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- Sewage (AREA)
Abstract
The utility model belongs to the technical field of the rainwater utilization technique and specifically relates to a sponge is rainwater system of recycling for city. The special landscape pool comprises a tamping layer positioned at the bottom of the landscape pool, wherein a primary filtering layer, a secondary filtering layer, a tertiary filtering layer and a backfilling planting layer are sequentially arranged on the tamping layer, the primary filtering layer is paved on the surface of the tamping layer, and a first geotextile is paved between the primary filtering layer and the secondary filtering layer; a second geotextile is laid between the second-stage filter layer and the third-stage filter layer; the backfill planting layer is arranged on the surface of the third filtering layer; the ramming layer is internally provided with a water collecting tank, the top of the water collecting tank is communicated with an overflow well, and the other end of the overflow well extends out of the backfill planting layer. The utility model provides a pair of sponge is rainwater system of recycling for city utilizes irrigation, filtration and the recovery of view pond realization rainwater to recycle.
Description
Technical Field
The utility model belongs to the technical field of the rainwater utilization technique and specifically relates to a sponge is rainwater system of recycling for city.
Background
The sponge city is a new city construction concept proposed by the nation, and the sponge city requires the city to have the functions of seepage, stagnation, storage, purification, use and discharge when raining. In the current garden engineering, drainage wells are arranged on two sides of a road to prevent ponding and waterlogging in a garden; along with garden engineering's development, for advocating the environmental protection, adopt the water catch bowl more, fill up the rubble in the water catch bowl and carry out natural filtration and realize the recovery of rainwater, but the water catch bowl has taken the area of using of garden, is unfavorable for the design of garden.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a sponge is rainwater system of recycling for city utilizes irrigation, filtration and the recovery of view pond realization rainwater to recycle.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
a rainwater recycling system for sponge cities comprises a tamping layer positioned at the bottom of a landscape pool, wherein a primary filtering layer, a secondary filtering layer, a tertiary filtering layer and a backfilling planting layer are sequentially arranged on the tamping layer, the primary filtering layer is paved on the surface of the tamping layer, and a first geotextile is paved between the primary filtering layer and the secondary filtering layer; a second geotextile is laid between the second-stage filter layer and the third-stage filter layer; the backfill planting layer is arranged on the surface of the third filtering layer;
the ramming layer is internally provided with a water collecting tank, the top of the water collecting tank is communicated with an overflow well, and the other end of the overflow well extends out of the backfill planting layer.
By adopting the technical scheme, rainwater is absorbed and utilized by plants at the backfill planting layer part, heavy metal elements in the rainwater are absorbed, the unabsorbed rainwater permeates into the third-stage filtering layer, the second-stage filtering layer and the first-stage filtering layer to be filtered and then enters the tamping layer, and the filtered rainwater is collected into the water collecting tank to realize the reutilization of the rainwater; the water collecting tank is communicated with an overflow well, and the overflow well is used for guiding the accumulated water with the overhigh surface of the backfilled planting layer into the water collecting tank to prevent waterlogging; the first geotextile and the second geotextile are used for ensuring that the filtering layers are not lost or mixed, the overall structure and the function of the material are kept, the bearing capacity of each filtering layer is enhanced, and the filtering and protecting effects are achieved.
The utility model discloses further set up to: the side surface of the water collecting tank is communicated with a water collecting pipe, and the other end of the water collecting pipe extends out of the backfill planting layer.
Through adopting above-mentioned technical scheme, the collector pipe is used for drawing forth the rainwater in the water catch bowl to backfilling planting layer and recycling.
The utility model discloses further set up to: the top of the water collecting tank is provided with an opening and is provided with a first filter screen;
and a third geotextile is arranged on the surface of the first filter screen.
By adopting the technical scheme, rainwater is collected into the water collecting tank, and enters the water collecting tank after being filtered by the third geotextile and the first filter screen; the third geotechnical cloth is used for protecting the first filter screen and preventing the first filter screen from being blocked by soil.
The utility model discloses further set up to: the top opening of overflow well just is provided with the second filter screen.
Through adopting above-mentioned technical scheme, prevent that debris from getting into overflow well and blockking up water catch bowl and water collecting pipe.
The utility model discloses further set up to: the thickness of the second-stage filtering layer is 300mm, and the second-stage filtering layer is composed of ceramsite with the particle size of 20mm multiplied by 20 mm.
By adopting the technical scheme, the ceramsite stone is light in weight and is used for secondary filtration of rainwater.
The utility model discloses further set up to: the thickness of the first-stage filter layer is 300mm, and the first-stage filter layer is composed of crushed stone with the grain size of 10 multiplied by 10 mm.
By adopting the technical scheme, the broken stone has smaller particle size and is used for primary filtration of rainwater.
The utility model discloses further set up to: the thickness of the backfill planting layer is 400mm, and the backfill planting layer is used for planting plants.
By adopting the technical scheme, the backfilled soil in the landscape pond is used as a backfilling planting layer for planting green plants.
The utility model discloses further set up to: the third filtering layer is composed of recycled aggregate.
By adopting the technical scheme, the construction waste is recycled, and the recycled aggregate is prepared for primary filtration of rainwater.
To sum up, the utility model discloses a beneficial technological effect does:
1. rainwater is absorbed and utilized by plants at the backfill planting layer part, heavy metal elements in the rainwater are absorbed, the unabsorbed rainwater permeates into the third-stage filtering layer, the second-stage filtering layer and the first-stage filtering layer to be filtered and then enters the tamping layer, and the filtered rainwater is collected into the water collecting tank to realize the reutilization of the rainwater; the water collecting tank is communicated with a water collecting pipe and an overflow well, the water collecting pipe is used for leading out rainwater in the water collecting tank for reuse, and the overflow well is used for leading accumulated water with too high surface of the backfill planting layer into the water collecting tank to prevent waterlogging; the first geotextile and the second geotextile are used for ensuring that the filtering layers are not lost or mixed, the overall structure and the function of the material are kept, the bearing capacity of each filtering layer is enhanced, and the filtering and protecting effects are achieved.
2. Rainwater is collected into the water collecting tank, filtered by the third geotextile and the first filter screen and then enters the water collecting tank; the third geotechnical cloth is used for protecting the first filter screen and preventing the first filter screen from being blocked by soil.
3. The open-top of overflow well just is provided with the second filter screen, prevents that debris from getting into the overflow well and blockking up water catch bowl and collector pipe.
Drawings
Fig. 1 is a schematic structural view of a rainwater recycling system for sponge cities.
In the figure, 101, the rammed layer; 102. crushing stone; 103. a first geotextile; 104. ceramsite stone; 105. a second geotextile; 106. regenerating aggregate; 107. backfilling the planting layer; 201. an overflow well; 202. a water collection tank; 203. a water collection pipe; 204. a first filter screen; 205. a third geotextile; 206. a second filter.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model provides a sponge is rainwater system of recycling for city utilizes irrigation, filtration and the recovery of view pond realization rainwater to recycle.
Referring to fig. 1, for the utility model discloses a rainwater system of recycling is used in sponge city to view pond is as the basis of sponge city rainwater system of recycling, realizes biological, the physics of rainwater and filters and retrieve and recycle.
Referring to fig. 1, the earthwork at the bottom of the landscape pool is dug out, a water collecting tank 202 is poured in advance, the top of the water collecting tank 202 is open, a first filter screen 204 is installed, and a layer of third geotextile 205 is laid on the upper surface of the first filter screen 204. The top of the water collecting tank 202 is communicated with an overflow well 201, the overflow well 201 penetrates through the first filter screen 204 and the third geotextile 205, extends into the water collecting tank 202, backfills earthwork and tamps the earthwork to form a tamped layer 101, and the overflow well 201 is fixed. A layer of broken stone 102 with the grain diameter of 10 multiplied by 10mm is paved on the surface of the tamping layer 101 to be used as a primary filtering layer, the thickness of the primary filtering layer is 300mm, the grain diameter of the broken stone 102 is small, the primary filtering layer is used for rainwater primary filtering, and the filtering effect is good. A second-stage filter layer is laid above the first-stage filter layer, a first geotextile 103 is laid between the first-stage filter layer and the second-stage filter layer, the thickness of the second-stage filter layer is 300mm, the second-stage filter layer is composed of ceramsite 104 with the particle size of 20 multiplied by 20mm, and the ceramsite 104 is light in weight and is used for second-stage filtration of rainwater. And a third-stage filter layer is laid above the second-stage filter layer, a second geotextile 105 is laid between the second-stage filter layer and the third-stage filter layer, the third-stage filter layer is composed of recycled aggregate 106, and the recycled aggregate 106 is formed by smashing construction waste and is used as a backfill material for primary filtration of rainwater. And backfilling planting soil on the surface of the three-level filtering layer to serve as a backfilling planting layer 107, wherein the thickness of the backfilling planting layer 107 is 400mm, various landscape plants are planted, and the root systems of the plants can absorb a large amount of heavy metal elements in the rainwater, so that the rainwater is biologically filtered and purified. The rainwater is absorbed and utilized by plants in the backfill planting layer 107, heavy metal elements in the rainwater are absorbed, the unabsorbed rainwater permeates into the third filtering layer, the second filtering layer and the first filtering layer to be filtered and then enters the tamping layer 101, the rainwater enters the water collecting tank 202 after being filtered by the third geotextile 205 and the first filter screen 204, and the third geotextile 205 is used for protecting the first filter screen 204 and preventing soil from blocking the first filter screen 204. The first geotextile 103 and the second geotextile 105 are used for ensuring that the filtering layers are not lost and mixed, the integral structure and function of the material are maintained, the bearing capacity of each filtering layer is enhanced, and the filtering and protecting effects are achieved.
Referring to fig. 1, a water collecting pipe 203 is communicated with the side surface of the water collecting tank 202, and one end of the water collecting pipe 203 is communicated with the water collecting tank 202 and is used for leading out rainwater in the water collecting tank 202 for reuse; the other end of the water collecting pipe 203 extends out of the backfill planting layer 107, and the rainwater in the water collecting tank 202 is led out to the backfill planting layer 107 for irrigation and reutilization of plants.
Referring to fig. 1, one end of the overflow well 201, which is far away from the water collecting tank 202, extends out of the backfill planting layer 107, the height of the overflow well 201 is ensured to be higher than that of the backfill planting layer 107 according to the design height, and a second filter screen 206 is installed at the top opening of the overflow well 201 to prevent impurities from entering the overflow well 201 and blocking the water collecting tank 202 and the water collecting pipe 203. When the accumulated water in the landscape pond is deep, the overflow well 201 guides the accumulated water which is too high on the surface of the backfill planting layer 107 into the water collecting tank 202, so that waterlogging and plant death are prevented.
The implementation principle of the embodiment is as follows: rainwater is absorbed and utilized by plants in the backfill planting layer 107, heavy metal elements in the rainwater are absorbed, the rainwater which is not absorbed seeps into the third filtering layer, the second filtering layer and the first filtering layer to be filtered, then enters the tamping layer 101, and is collected into the water collecting tank 202 to realize the reutilization of the rainwater; the water collecting tank 202 is communicated with a water collecting pipe 203 and an overflow well 201, the water collecting pipe 203 is used for leading out rainwater in the water collecting tank 202 for reuse, and the overflow well 201 is used for leading accumulated water with too high surface of the backfill planting layer 107 into the water collecting tank 202 to prevent waterlogging; the first geotextile 103 and the second geotextile 105 are used for ensuring that the filtering layers are not lost and mixed, maintaining the integral structure and function of the material, enhancing the bearing capacity of each filtering layer and playing a role in filtering and protecting; rainwater is collected in the water collection tank 202, and enters the water collection tank 202 after being filtered by the third geotextile 205 and the first filter screen 204; the third geotextile 205 is used for protecting the first filter screen 204 and preventing soil from blocking the first filter screen 204; the top of overflow well 201 is open and is provided with second filter 206 to prevent debris from entering overflow well 201 and blocking water collection tank 202 and water collection pipe 203.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a sponge is rainwater system of recycling for city, is including ramming layer (101) that is located view pond bottom, its characterized in that: a primary filtering layer, a secondary filtering layer, a tertiary filtering layer and a backfill planting layer (107) are sequentially arranged on the tamping layer (101), the primary filtering layer is laid on the surface of the tamping layer (101), and a first geotextile (103) is laid between the primary filtering layer and the secondary filtering layer; a second geotextile (105) is laid between the second-stage filter layer and the third-stage filter layer; the backfill planting layer (107) is arranged on the surface of the third filtering layer;
a water collecting tank (202) is arranged in the tamping layer (101), the top of the water collecting tank (202) is communicated with an overflow well (201), and the other end of the overflow well (201) extends out of the backfill planting layer (107).
2. The rainwater recycling system for sponge city according to claim 1, characterized in that: the side surface of the water collecting tank (202) is communicated with a water collecting pipe (203), and the other end of the water collecting pipe (203) extends out of the backfill planting layer (107).
3. The rainwater recycling system for sponge city according to claim 1, characterized in that: the top of the water collecting tank (202) is opened and is provided with a first filter screen (204);
and a third geotextile (205) is arranged on the surface of the first filter screen (204).
4. The rainwater recycling system for sponge city according to claim 1, characterized in that: the top of the overflow well (201) is open and is provided with a second filter screen (206).
5. The rainwater recycling system for sponge city according to claim 1, characterized in that: the thickness of the secondary filter layer is 300mm, and the secondary filter layer is composed of ceramsite (104) with the particle size of 20mm multiplied by 20 mm.
6. The rainwater recycling system for sponge city according to claim 1, characterized in that: the thickness of the first-stage filter layer is 300mm, and the first-stage filter layer is composed of crushed stones (102) with the grain size of 10 multiplied by 10 mm.
7. The rainwater recycling system for sponge city according to claim 1, characterized in that: the backfill planting layer (107) is 400mm thick and is used for planting plants.
8. The rainwater recycling system for sponge city according to claim 1, characterized in that: the third filtering layer is composed of recycled aggregate (106).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922055888.XU CN211499025U (en) | 2019-11-23 | 2019-11-23 | Rainwater recycling system for sponge city |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922055888.XU CN211499025U (en) | 2019-11-23 | 2019-11-23 | Rainwater recycling system for sponge city |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211499025U true CN211499025U (en) | 2020-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922055888.XU Expired - Fee Related CN211499025U (en) | 2019-11-23 | 2019-11-23 | Rainwater recycling system for sponge city |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211499025U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114855930A (en) * | 2022-05-07 | 2022-08-05 | 河西学院 | Sponge urban road capable of accumulating and recycling rainwater |
-
2019
- 2019-11-23 CN CN201922055888.XU patent/CN211499025U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114855930A (en) * | 2022-05-07 | 2022-08-05 | 河西学院 | Sponge urban road capable of accumulating and recycling rainwater |
| CN114855930B (en) * | 2022-05-07 | 2024-07-02 | 河西学院 | Sponge urban road for rainwater accumulation and reuse |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200915 |
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| CF01 | Termination of patent right due to non-payment of annual fee |