CN211922124U

CN211922124U - Sponge urban rainwater circulation system

Info

Publication number: CN211922124U
Application number: CN202020370378.1U
Authority: CN
Inventors: 田鹏
Original assignee: Shenzhen Yizhu Architectural Design Co ltd
Current assignee: Shenzhen Yizhu Architectural Design Co ltd
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2020-11-13
Anticipated expiration: 2030-03-20

Abstract

The utility model relates to a sponge city rainwater circulation system belongs to municipal drainage structure's technical field, including road and the escape canal that is located road along length direction both sides, the escape canal includes vegetation layer, water purification layer and the aquifer that from the top down set up, is connected with water intaking mechanism between aquifer and the vegetation layer, the road includes road surface layer, infiltration layer, waterproof layer and the road base layer that from the top down set up, water intaking mechanism one end and aquifer intercommunication, the other end and vegetation layer and infiltration layer intercommunication. The utility model discloses have and to store unnecessary rainwater in the rainy day, can irrigate the vegetable layer on roadside when the arid, can adjust the humidity on road surface and the effect of temperature again to a certain extent.

Description

Sponge urban rainwater circulation system

Technical Field

The utility model belongs to the technical field of municipal drainage structure's technique and specifically relates to a sponge city rainwater circulation system is related to.

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.

The utility model discloses a utility model patent that the bulletin number is CN207484627U discloses a sponge urban rainwater circulation system, its technical scheme main points are including the vegetable layer, be used for planting the organic soil horizon of vegetation, as the concrete foundation layer of construction basis and the sewer that links to each other with municipal drainage network, the below on organic soil horizon is equipped with the layer that absorbs water, and the layer that absorbs water is arranged in absorbing unnecessary rainwater in the organic soil horizon, is equipped with a plurality of modules that absorb water in the layer that absorbs water, and the module that absorbs water distributes in the layer that absorbs water, and the below on the layer that absorbs water is equipped with the sediment layer, is equipped with the sediment filter chamber in the sediment layer, be equipped with circulating line and pumping device in the concrete foundation layer, circulating line is used. The utility model has the advantages that: the efficient cyclic utilization water resource has reduced the waste of water resource.

The above prior art solutions have the following drawbacks: the water stored by the technical scheme can only be used for irrigating the vegetation layer, and the humidity and the temperature of the pavement cannot be adjusted during drought.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a sponge city rainwater circulation system stores unnecessary rainwater in the rainy day, can irrigate the vegetable layer on roadside when the arid, can adjust the humidity and the temperature on road surface again to a certain extent.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a sponge city rainwater circulation system, includes the road and is located the escape canal of road along length direction both sides, and the escape canal includes vegetable layer, water purification layer and the water-storage layer that from the top down set up, is connected with water intaking mechanism between water-storage layer and the vegetable layer, the road includes road surface layer, water seepage layer, waterproof layer and the road base layer that from the top down set up, water intaking mechanism one end and water-storage layer intercommunication, the other end and vegetable layer and water seepage layer intercommunication.

By adopting the technical scheme, when raining, one part of rainwater on the road flows into the drainage ditch, the other part of rainwater downwards permeates into the water seepage layer from the road surface layer, part of water remains in the water seepage layer and volatilizes from the road surface layer at higher temperature to play a role in adjusting the temperature and humidity of the road surface layer, when the water seepage amount exceeds the water storage capacity of the water seepage layer, the excessive water permeates into the water purification layer through the water seepage layer, and the rainwater entering the drainage ditch is purified through the vegetable layer and the water purification layer in sequence and then enters the water storage layer for storage; during drought, the water taking mechanism extracts one part of water in the reservoir to the vegetation layer nourishing plants, and conveys the other part of water to the water seepage layer to adjust the temperature and the humidity of the pavement layer.

The present invention may be further configured in a preferred embodiment as: the water purification layer comprises a plant residue layer connected with the bottom of the vegetation layer, and the bottom of the plant residue layer is connected with a sandstone layer.

By adopting the technical scheme, the stump leaves of the residual branches falling off from the green plants at ordinary times can be buried below the vegetation layer to form a plant residue layer, so that the plant residue layer can provide nutrient substances required by growth for the vegetation layer after being decomposed, and can also primarily filter water permeating from the vegetation layer to reuse waste, thereby being environment-friendly and saving resources; the sandstone layer can play the supporting role to the plant residue layer, can further filter the water that permeates down from the plant residue layer again.

The present invention may be further configured in a preferred embodiment as: the gravel layer comprises ceramsite, a river sand layer and a cobble layer which are sequentially paved from top to bottom.

Through adopting above-mentioned technical scheme, the haydite of light has higher intensity and the inner structure characteristic is fine cellular micropore, can play the effect of supporting the incomplete layer of plant, can filter the great impurity in aquatic again, and the river sand layer is packed more closely, and the hole is littleer, can further with the less impurity filtering in aquatic, and the cobblestone layer plays the effect of supporting the river sand layer, reduces the possibility that the river sand layer slumped.

The present invention may be further configured in a preferred embodiment as: the water storage layer is including being located the cistern of grit layer below, and the cistern sets up along escape canal length direction, and the cistern top is uncovered and install the board that leaks, installs the vertical baffle of polylith in the cistern, and the polylith baffle is split into a plurality of continuous compartments with the cistern.

Through adopting above-mentioned technical scheme, the water after the water purification layer purifies gets into the cistern from the board that leaks and concentrates the storage, extracts during vegetable layer and the infiltration layer when the follow-up weather is arid of being convenient for, and the baffle can block that the water in the cistern flows to the one end that the relief is low for the cistern all is equipped with water along length direction's compartment, and the length direction of being convenient for along the road can both supply water.

The present invention may be further configured in a preferred embodiment as: an overflow port is arranged between the top end of the clapboard and the bottom wall of the water leaking plate.

Through adopting above-mentioned technical scheme, when the local more water of gathering of escape canal, the water that is arranged in the compartment of the more escape canal below of catchment is more, and the water of when the compartment is accumulated overflow mouth department, can flow into adjacent compartment from the overflow mouth and store the utilization.

The present invention may be further configured in a preferred embodiment as: one side of the water leakage plate, which is far away from the reservoir, is provided with geotextile.

Through adopting above-mentioned technical scheme, geotechnological cloth filters once more to the water that the water purification layer infiltration got off, alleviates the possibility that impurity such as silt got into the cistern.

The present invention may be further configured in a preferred embodiment as: the water seepage layer is a river sand layer.

By adopting the technical scheme, the river sand layer can permeate water and has certain water retention capacity, and when raining, part of rainwater permeated from the pavement layer is retained by the river sand layer and is volatilized to the pavement layer when drying, so that the temperature and the humidity of the pavement layer are adjusted; and the other part of water permeates into the water purification layer from the two sides of the road and then enters the reservoir.

The present invention may be further configured in a preferred embodiment as: the water leakage plate is provided with a through hole, the water taking mechanism comprises a flexible water absorbing part fixed at the bottom of the reservoir, one end of the water absorbing part is fixed at the bottom of the reservoir, and the other end of the flexible water absorbing part penetrates out of the through hole and extends into the vegetable layer and the water seepage layer.

Through adopting above-mentioned technical scheme, during the drying, because capillary phenomenon water absorption spare can lead the water in the cistern to in vegetable layer and the infiltration layer, the humidity of automatically regulated vegetable layer and infiltration layer does not need the manual work to judge whether need to carry water to in vegetable layer and the infiltration layer, and it is more convenient to use.

The present invention may be further configured in a preferred embodiment as: the water purification layer is internally provided with a vertical waterproof protective pipe, and one section of the water absorption piece positioned on the water purification layer is arranged in the protective pipe in a penetrating way.

Through adopting above-mentioned technical scheme, waterproof protective tube can reduce the water that absorbs water the piece and absorb and run off the possibility in the water purification layer, can also protect absorbing water the piece, reduces the impaired possibility of absorbing water the piece.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the rainwater is purified by the water purification layer and then enters the water storage layer for storage, when the water is dry, one part of water in the water storage tank is extracted to vegetation layer nourishing plants by the water taking mechanism, and the other part of water is conveyed to the water seepage layer to adjust the temperature and humidity of the pavement layer;

2. the partition plate can prevent water in the reservoir from flowing to one end with low terrain, so that the compartments of the reservoir along the length direction are filled with water, and water can be supplied along the length direction of a road conveniently;

3. the seepage can seep water and has certain water-retaining capacity, and part of rainwater seeped down from the pavement layer is retained by the seepage layer and is used for volatilizing to the pavement layer during drying so as to adjust the temperature and the humidity of the pavement layer; and the other part of water permeates into the water purification layer from the two sides of the road and then enters the water storage tank, and is extracted and utilized by the water extraction mechanism during drought.

Drawings

Fig. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a sectional view taken along line B-B in fig. 1.

Reference numerals: 1. a road; 11. a pavement layer; 12. a water seepage layer; 13. a waterproof layer; 14. a roadbed layer; 2. a drainage ditch; 21. a vegetable layer; 22. a water purification layer; 221. a plant residue layer; 222. a sandstone layer; 23. a aquifer; 231. a reservoir; 232. a water leakage plate; 233. a partition plate; 234. an overflow port; 235. geotextile; 236. a through hole; 3. a water taking mechanism; 31. a water absorbing member; 32. and (4) a protective pipe.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a sponge city rainwater circulation system, including road 1 with be located road 1 along the escape canal 2 of length direction both sides, road 1 includes pavement layer 11, infiltration layer 12, waterproof layer 13 and the road bed layer 14 that from the top down set up. The drainage ditch 2 comprises a vegetation layer 21, a water purification layer 22 and a water storage layer 23 which are arranged from top to bottom, rainwater permeates into the water purification layer 22 from the vegetation layer 21 to be purified and enters the water storage layer 23 to be stored in rainy days, a water taking mechanism 3 is connected between the water storage layer 23 and the vegetation layer 21, one end of the water taking mechanism 3 is communicated with the water storage layer 23, and the other end of the water taking mechanism 3 is communicated with the vegetation layer 21 and a water seepage layer 12, so that water in the water storage layer 23 is supplemented into the vegetation layer 21 or the water seepage layer 12 when the vegetation layer 21 or the water seepage layer 12 is lack of water.

The roadbed 14 can be a tamped earth layer, and the waterproof layer 13 can be a polyurethane waterproof coating layer coated on the top wall of the roadbed 14, and is used for preventing water in the water seepage layer 12 from permeating into the roadbed 14, so that the possibility of damage to the roadbed 14 is reduced.

The water seepage layer 12 is laid on the waterproof layer 13, the water seepage layer 12 can be a river sand layer, and the river sand layer can permeate water and has certain water retention capacity. When raining, a part of rainwater infiltrated by the pavement layer 11 is stored by the water infiltration layer 12 and is used for volatilizing moisture to the pavement layer 11 when the pavement layer 11 is dry, and adjusting the temperature and the humidity of the pavement layer 11; the other part of water permeates into the drainage ditch 2 from the two sides of the road 1, so that the possibility of water accumulation of the road surface layer 11 is reduced. The pavement layer 11 may be a concrete layer poured on the water seepage layer 12 for pedestrians or vehicles to travel.

The top of the drainage ditch 2 is concave downwards and is lower than the road surface layer 11, so that rainwater on the road surface layer 11 can flow into the drainage ditch 2 when raining, and the possibility of water accumulation of the road surface layer 11 is reduced. The vegetation layer 21 is a soil layer at the top end of the drainage ditch 2, and green plants are planted to beautify the environment.

Referring to fig. 2, the water purification layer 22 includes a plant residue layer 221 connected to the bottom of the vegetation layer 21, and the plant residue layer 221 is formed by burying the dead branches and leaves of the greening plants falling off at ordinary times under the vegetation layer 21, so that the decomposed plant residue layer can provide nutrients required for vegetation growth for the vegetation layer 21, and the water permeated from the vegetation layer 21 can be primarily filtered to reuse the waste, thereby protecting the environment and saving resources.

The bottom of the plant residue layer 221 is connected with a sand stone layer 222, and the sand stone layer 222 comprises ceramic grains, a river sand layer and a cobble layer which are sequentially paved from top to bottom. The lightweight ceramsite has high strength and internal structural characteristics of fine honeycomb micropores, and not only can play a role in supporting the plant residue layer 221, but also can filter larger impurities in water. The river sand layer is more closely filled, the pores are smaller, and smaller impurities in water can be further filtered. The cobble layer plays a role in supporting the river sand layer, and the possibility of collapse of the river sand layer is reduced.

Referring to fig. 2 and 3, the aquifer 23 includes a reservoir 231 disposed below the gravel layer 222, and the reservoir 231 may be constructed by excavating a groove at the bottom end of the drainage ditch 2 and then pouring a layer of concrete on the inner wall of the groove. The cistern 231 sets up along 2 length direction in escape canal, and open and the closing cap in cistern 231 top has the board 232 that leaks water, and the board 232 that leaks water can be corrosion resistant plate or concrete slab, has seted up a plurality ofly on the board 232 that leaks water with cistern 231 and water purification layer 22 intercommunication to during the hydroenergy that water purification layer 22 was handled flows into cistern 231, draw during the follow-up weather arid vegetation layer 21 and the water seepage layer 12 of using of being convenient for. Geotechnical cloth 235 is laid on one side of the water leakage plate 232, which deviates from the reservoir 231, and water permeating from the water purification layer 22 is filtered again, so that the possibility that impurities such as silt enter the reservoir 231 is reduced.

Install the vertical baffle 233 of polylith in the cistern 231, baffle 233 bottom integrated into one piece connects on the cistern 231 diapire, polylith baffle 233 is divided into a plurality of continuous compartments with the cistern, and baffle 233 can block the one end trickling of the water in the cistern 231 to the relief height for the cistern 231 all is equipped with water along length direction's compartment, and the length direction of being convenient for along road 1 can both supply water.

An overflow opening 234 is formed between the top end of the partition 233 and the bottom wall of the drain plate 232, so that when the drain ditch 2 collects a large amount of water locally, a large amount of water is accumulated in the compartment below the drain ditch 2 with a large amount of water, and when the water in the compartment is accumulated at the overflow opening 234, the water flows into the adjacent compartment from the overflow opening 234 to be stored and provided for the adjacent water shortage section.

The water taking mechanism 3 comprises a flexible water absorbing part 31 fixed at the bottom of the reservoir 231, the water absorbing part 31 can be a strand of twisted multi-strand cotton thread or sponge strip, one end of the water absorbing part 31 is fixed at the bottom of the reservoir 231 through a screw, a through hole 236 is formed in the water leaking plate 232, the other end of the water absorbing part 31 penetrates through the through hole 236 and is dispersed into a plurality of strands, each strand extends to the vegetation layer 21 and the water permeating layer 12 along different directions and is uniformly laid in the vegetation layer 21 and the water permeating layer 12, so that when the vegetation layer 21 and the water permeating layer 12 are dried, the water in the reservoir 231 can be guided into the vegetation layer 21 and the water permeating layer 12 through the water absorbing part 31 due to capillary phenomenon, the humidity of the vegetation layer 21 and the water permeating layer 12 is automatically adjusted, the need of manual judgment on whether water needs to be conveyed into the vegetation layer 21 and the water.

In order to reduce the possibility that water absorbed by the water absorbing member 31 runs off in the water purification layer 22, a vertical protective pipe 32 is installed in the water purification layer 22, the protective pipe 32 can be a stainless steel pipe or a plastic pipe, a section of the water absorbing member 31 located in the water purification layer 22 penetrates through the protective pipe 32, and the protective pipe 32 can also protect the water absorbing member 31, so that the possibility that the water absorbing member 31 is damaged is reduced.

The implementation principle of the embodiment is as follows: when raining, one part of rainwater on the road 1 flows into the drainage ditch 2, the other part of rainwater downwards permeates into the water seepage layer 12 from the road surface layer 11, and part of water remains in the water seepage layer 12 and volatilizes to the road surface layer 11 when the temperature is higher, so that the effect of adjusting the temperature and the humidity of the road surface layer 11 is achieved; when the amount of water seepage exceeds the water holding capacity of the water seepage layer 12, excess water seeps through the water seepage layer 12 into the clean water layer 22.

The rainwater entering the drainage ditch 2 is purified by the vegetation layer 21 and the water purification layer 22 in sequence and then enters the water storage layer 23 for storage; during drought, the water absorbing member 31 extracts a part of the water in the reservoir 231 to the vegetation layer 21 to nourish the plants, and delivers the other part of the water to the permeable layer 12 to adjust the temperature and humidity of the pavement layer 11.

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

1. The utility model provides a sponge city rainwater circulation system, includes road (1) and is located escape canal (2) of road (1) along length direction both sides, escape canal (2) are including vegetation layer (21), water purification layer (22) and water-storage layer (23) that from the top down set up, are connected with water intaking mechanism (3) between water-storage layer (23) and vegetation layer (21), its characterized in that: the road (1) comprises a road surface layer (11), a water seepage layer (12), a waterproof layer (13) and a road base layer (14) which are arranged from top to bottom, one end of the water taking mechanism (3) is communicated with the water storage layer (23), and the other end of the water taking mechanism is communicated with the vegetable layer (21) and the water seepage layer (12).

2. The sponge urban rainwater recycling system according to claim 1, characterized in that: the water purification layer (22) comprises a plant residue layer (221) connected with the bottom of the vegetation layer (21), and the bottom of the plant residue layer (221) is connected with a sandstone layer (222).

3. The sponge urban rainwater recycling system according to claim 2, characterized in that: the gravel layer (222) comprises ceramsite, a river sand layer and a cobble layer which are sequentially paved from top to bottom.

4. The sponge urban rainwater recycling system according to claim 1, characterized in that: the water storage layer (23) comprises a water storage tank (231) located below the sand stone layer (222), the water storage tank (231) is arranged along the length direction of the drainage ditch (2), the top end of the water storage tank (231) is open and provided with a water leaking plate (232), a plurality of vertical partition plates (233) are arranged in the water storage tank (231), and the water storage tank is divided into a plurality of continuous compartments by the partition plates (233).

5. The sponge urban rainwater recycling system of claim 4, wherein: an overflow port (234) is arranged between the top end of the clapboard (233) and the bottom wall of the water leaking plate (232).

6. The sponge urban rainwater recycling system of claim 4, wherein: one side of the water leakage plate (232) departing from the water storage tank (231) is provided with geotextile (235).

7. The sponge urban rainwater recycling system according to claim 1, characterized in that: the water seepage layer (12) is a river sand layer.

8. The sponge urban rainwater recycling system of claim 5, wherein: the water leakage plate (232) is provided with a through hole (236), the water taking mechanism (3) comprises a flexible water absorbing part (31) fixed at the bottom of the water storage pool (231), one end of the water absorbing part (31) is fixed at the bottom of the water storage pool (231), and the other end of the flexible water absorbing part (31) penetrates out of the through hole (236) and extends into the vegetation layer (21) and the water seepage layer (12).

9. The sponge urban rainwater recycling system of claim 8, wherein: install vertical waterproof protective tube (32) in water purification layer (22), absorb water piece (31) are located one section of water purification layer (22) and wear to establish in protective tube (32).