CN214245997U - Sponge city drainage device - Google Patents

Abstract

The utility model relates to a sponge city drainage device, including vegetable layer, setting at the nutrient soil layer under the vegetable layer, set up the former soil layer under nutrient soil layer, nutrient soil layer is less than the road surface, nutrient soil layer is the internal vertical a plurality of overflow pipes that are equipped with, the outstanding nutrient soil layer's of one end upper surface of overflow pipe, the other end run through former soil layer, be equipped with a plurality of water storage chambeies in the former soil layer, every the overflow pipe all runs through a water storage chamber and communicates with the water storage chamber, and is a plurality of the water storage chamber is through violently managing the intercommunication, violently manage and be located former soil layer, violently manage and be used for and communicate with urban sewage pipe network, former soil layer has the adsorbed layer. This application has the effect that improves the drainage ability of greenbelt.

Description

Sponge city drainage device

Technical Field

The application relates to the field of sponge urban drainage, in particular to a sponge urban drainage device.

Background

The sponge city is a new generation of urban rainfall flood management concept, and means that the city has good elasticity in the aspects of adapting to environmental changes, coping with natural disasters caused by rainwater and the like, and can be also called as a water elasticity city. The international generic term is "low impact development storm water system construction". When raining, the utility model absorbs water, stores water, seeps water and purifies water, and when needed, the stored water is released and utilized. Under the new situation, the sponge city promotes the green building construction, the development of low-carbon cities and the innovation of the formation of smart cities, and is the organic combination of modern green new technology and a plurality of factors such as society, environment, humanity and the like under the characteristic background of a new era.

In order to prevent rainwater from accumulating, plants submerge vegetation and drown the plants, and the soil layer of the green belt is usually designed to be higher than the road surface.

With respect to the related art in the above, the inventors consider that there are the following drawbacks: when rainwater or flood comes, soil erosion of the green belt is easily caused. The water flow rushes soil of a soil layer to the road surface, so that the pollution of the road surface environment and the blockage of a road surface drainage system are caused, the drainage capability of the urban drainage system is greatly influenced, and the urban greening environment is greatly influenced.

SUMMERY OF THE UTILITY MODEL

In order to improve the drainage ability of greenbelt, this application provides a sponge city drainage device.

The application provides a sponge city drainage device adopts following technical scheme:

the utility model provides a sponge urban drainage device, includes vegetable layer, sets up at the nutrient soil layer of vegetable layer, sets up the former soil layer under nutrient soil layer, nutrient soil layer is less than the road surface, the vertical a plurality of overflow pipes that are equipped with in the nutrient soil layer, the outstanding nutrient soil layer's of one end upper surface of overflow pipe, the other end run through former soil layer, be equipped with a plurality of water storage chambeies in the former soil layer, every the overflow pipe all runs through a water storage chamber and communicates with the water storage chamber, and is a plurality of the water storage chamber is through violently managing the intercommunication, violently manage and be located former soil layer, violently manage and be used for and communicate with urban sewage pipe network, former soil layer has the adsorbed layer.

By adopting the technical scheme, when rainwater or flood comes, part of water permeates into the nutrient soil layer to nourish the vegetation; part of water flow permeates the nutrient soil layer and enters the original soil layer, and the water flow which is not absorbed by the original soil layer continues to downwards pass through the adsorption layer to be filtered to become underground water; when the water flow is too much and cannot penetrate into the permeable nutrient soil layer, the accumulated water flow flows over the overflow pipe, flows into the water storage cavity from the overflow pipe, is temporarily stored in the water storage cavity, is partially discharged from the horizontal pipe after the drainage pressure is relieved, and partially slowly infiltrates into the filter layer; the drainage pressure on the ground is reduced, the drainage speed is improved, and the possibility that the vegetation is submerged and damaged is reduced.

Optionally, the nutrient soil layer comprises ceramsite, perlite, turf and fine sand.

By adopting the technical scheme, the ceramsite can increase the air permeability and the water permeability of the soil; a plurality of cracks are formed in the perlite structure, so that moisture and nutrition can be absorbed; the grass peat quickly collects water in the early stage and slowly releases water in the later stage; the fine sand can enhance the moisture retention, the loosening and the air permeability of the soil; the cooperation of the ceramsite, the perlite, the grass carbon and the fine sand enhances the water permeability of the nutrient soil layer, and ensures the nutrient requirements of the vegetation while improving the water permeability.

Optionally, the adsorption layer comprises ceramsite and stone.

By adopting the technical scheme, the tiny impurities wrapped in the water are adsorbed by the ceramsite and the stone, so that the water flow is filtered.

Optionally, a filter layer is arranged between the original soil layer and the adsorption layer, and the filter layer is a water-permeable non-woven fabric.

Through adopting above-mentioned technical scheme, the filter layer reduces earth and gets into the effect that the adsorbed layer influences its adsorption efficiency under the condition that does not influence the drainage.

Optionally, a root penetration preventing layer is arranged between the original soil layer and the filter layer.

Through adopting above-mentioned technical scheme, prevent that root system penetration layer has reduced the root system of vegetation punctures the possibility that the filter layer influences its filter effect, guarantees the filter effect of filter layer, does not influence the drainage simultaneously.

Optionally, a filter screen is arranged at the top end of the overflow pipe.

Through adopting above-mentioned technical scheme, the filter screen has reduced the debris that the aquatic was wrapped up in under hand and has got into the overflow pipe, blocks up the overflow pipe and influences the possibility of drainage ability.

Optionally, the filter screen is in a shape of an upwardly arched semicircle.

By adopting the technical scheme, the sundries slide along the cambered surface of the filter screen, so that the possibility that the sundries are accumulated on the filter screen to influence drainage is reduced.

Optionally, the filter screen is coated with a corrosion-resistant layer.

By adopting the technical scheme, the possibility that the filter screen is corroded by water flow to lose efficacy and the drainage is influenced is reduced.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the overflow pipe, the water storage cavity and the transverse pipe are arranged, so that the drainage pressure of the ground is reduced, the drainage speed is improved, and the possibility that vegetation is submerged and damaged is reduced;

2. the arrangement of the filter screen reduces the possibility that sundries wrapped in water enter the overflow pipe to block the overflow pipe to influence the drainage capacity;

3. the corrosion-resistant layer is arranged, so that the possibility that the filter screen is corroded and loses efficacy by water flow to influence drainage is reduced.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Description of reference numerals: 1. a vegetable layer; 2. a nutrient soil layer; 3. a primary soil layer; 4. a root penetration prevention layer; 5. a filter layer; 6. an adsorption layer; 7. an overflow pipe; 71. a filter screen; 8. a water storage cavity; 9. a transverse tube.

Detailed Description

The present application is described in further detail below with reference to fig. 1.

The embodiment of the application discloses sponge city drainage device.

Referring to fig. 1, the sponge urban drainage device comprises a vegetation layer 1, a nutrient soil layer 2, a raw soil layer 3 and an adsorption layer 6 which are sequentially arranged from top to bottom. The nutrient soil layer 2 is lower than the road surface, so that the possibility of water and soil loss caused by the fact that soil is flushed to the road surface by water flow is reduced. A plurality of overflow pipes 7 are arranged in the nutrient soil layer 2, the top ends of the overflow pipes 7 protrude out of the nutrient soil layer 2 and are communicated with the outside, and the bottom ends of the overflow pipes 7 penetrate through the nutrient soil layer 2 and the original soil layer 3. A plurality of water storage cavities 8 corresponding to the overflow pipes 7 are formed in the original soil layer 3, and each overflow pipe 7 penetrates through one water storage cavity 8. A plurality of water storage chamber 8 are through violently managing 9 intercommunications, violently manage 9 and municipal sewage pipe network intercommunication.

Referring to fig. 1, when rainwater or flood comes, part of water permeates into a nutrient soil layer 2 to nourish vegetation. Part of the water flow permeates the nutrient soil layer 2, enters the original soil layer 3 and is absorbed by the original soil layer 3. The water flow which cannot be absorbed by the original soil layer 3 continues to downwards pass through the adsorption layer 6 to be filtered into underground water. When too much water flows into the nutrient soil layer 2 too late, the accumulated water flows over the overflow pipe 7, flows into the water storage cavity 8 from the overflow pipe 7 and is temporarily stored in the water storage cavity 8, the part is discharged from the transverse pipe 9 after the drainage pressure is relieved, and the part slowly infiltrates into the filter layer 5. The drainage pressure on the ground is reduced, the drainage speed is improved, and the possibility that the vegetation is submerged and damaged is reduced.

Referring to fig. 1, when water flows through the overflow pipe 7 for drainage, impurities wrapped in the water enter the overflow pipe 7, the overflow pipe 7 is easily blocked, and the drainage capacity is affected, and a filter screen 71 is welded at the top end of the overflow pipe 7. The filter screen 71 is arranged in an upward arched semicircular shape, and sundries slide down along the cambered surface of the filter screen 71, so that the possibility that the sundries are accumulated on the filter screen 71 to affect drainage is reduced. Meanwhile, when water flows over the overflow pipe 7, the filter screen 71 is soaked in the water, the filter screen 71 is provided with the corrosion-resistant layer, and the corrosion-resistant layer is made of asphalt, so that the possibility that the filter screen 71 is corroded and loses efficacy by the water flows and drainage is influenced is reduced.

Referring to fig. 1, vegetation is planted in a nutrient soil layer 2, the nutrient soil layer 2 is composed of ceramsite, perlite, turf, fine sand and the like, and the ceramsite can increase the air permeability and the water permeability of soil. The perlite structure has a plurality of cracks, can absorb moisture and nutrition, can keep substances in soil stable, and is beneficial to the growth of vegetation. The grass peat quickly collects water in the early stage and slowly releases water in the later stage, and the crop plants are promoted to absorb phosphorus through the quick collection and slow release processes. And the fine sand can enhance the moisture retention, the loosening and the air permeability of the soil. The water permeability of the nutrient soil layer 2 is enhanced by the cooperation of the ceramsite, the perlite, the grass carbon and the fine sand, and the nutrient requirement of the vegetation is ensured while the water permeability is improved.

Referring to fig. 1, the adsorption layer 6 includes ceramsite and stone, water flows through the ceramsite and the stone, and fine impurities wrapped in the water are adsorbed by the ceramsite and the stone, so that the water flow is filtered. When rivers got into adsorbed layer 6 through former soil layer 3, easily took into adsorbed layer 6 with the soil in the former soil layer 3, laid filter layer 5 between former soil layer 3 and adsorbed layer 6, filter layer 5 adopts the non-woven fabrics that permeates water, reduces the effect that earth got into adsorbed layer 6 and influences its adsorption effect under the condition that does not influence the drainage.

Referring to fig. 1, the root systems of some vegetation are very strong and can penetrate into the deep soil, and in order to reduce the possibility that the root systems of the vegetation penetrate through the filter layer 5 and influence the filtering effect, a root penetration preventing layer 4 is laid between the original soil layer 3 and the filter layer 5. The root penetration preventing layer 4 adopts a permeable geomembrane, so that the vegetation root system can be well blocked, the filtering effect of the filtering layer 5 is ensured, and drainage is not influenced.

The implementation principle of the sponge urban drainage device in the embodiment of the application is as follows: when rainwater or flood comes, part of water permeates into the nutrient soil layer 2 to nourish the vegetation. Part of the water flow permeates the nutrient soil layer 2, enters the original soil layer 3 and is absorbed by the original soil layer 3. The water flow which cannot be absorbed by the original soil layer 3 wraps the soil downwards continuously, and becomes underground water after being filtered by the filter layer 5 and then being filtered by the adsorption layer 6 for the second time. When too much water flows into the nutrition soil layer 2 too soon, the accumulated water flows over the overflow pipe 7, the water flows into the water storage cavity 8 from the overflow pipe 7 through the filtering of the filter screen 71 and is temporarily stored in the water storage cavity 8, the part is discharged from the transverse pipe 9 after the drainage pressure is relieved, and the part slowly infiltrates into the filter layer 5 to become underground water.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a sponge city drainage device, includes vegetable layer (1), sets up nutrition soil layer (2) under vegetable layer (1), sets up former soil layer (3) under nutrition soil layer (2), its characterized in that: nutrient soil layer (2) are less than the road surface, the vertical a plurality of overflow pipes (7) that are equipped with in nutrient soil layer (2), the upper surface of the outstanding nutrient soil layer (2) of one end of overflow pipe (7), the other end run through former soil layer (3), be equipped with a plurality of water storage chamber (8) in former soil layer (3), every overflow pipe (7) all run through a water storage chamber (8) and communicate with water storage chamber (8), and are a plurality of water storage chamber (8) are through violently managing (9) intercommunication, violently manage (9) and be located former soil layer (3), violently manage (9) be used for and city sewage pipe network intercommunication, former soil layer (3) have adsorbed layer (6).

2. The sponge municipal drainage device of claim 1, wherein: the nutrient soil layer (2) comprises ceramsite, perlite, turf and fine sand.

3. The sponge municipal drainage device of claim 1, wherein: the adsorption layer (6) comprises ceramsite and stone.

4. The sponge municipal drainage device of claim 1, wherein: a filter layer (5) is arranged between the original soil layer (3) and the adsorption layer (6), and the filter layer (5) is a water-permeable non-woven fabric.

5. The sponge municipal drainage device of claim 4, wherein: and a root penetration preventing layer (4) is arranged between the original soil layer (3) and the filter layer (5).

6. The sponge municipal drainage device of claim 1, wherein: and a filter screen (71) is arranged at the top end of the overflow pipe (7).

7. The sponge municipal drainage device of claim 6, wherein: the filter screen (71) is in a semicircular shape which is arched upwards.

8. The sponge municipal drainage device of claim 6, wherein: the filter screen (71) is coated with a corrosion-resistant layer.

Images