CN216392286U - Novel water storage type green roof under sponge city construction background - Google Patents

Abstract

The utility model discloses a novel water storage type green roof under a sponge city construction background, which comprises a reservoir, wherein a waterproof protective layer is laid at the bottom of the reservoir, a supporting upright post is vertically arranged inside the reservoir, a bearing layer is horizontally arranged at the top of the supporting upright post, a filter tank is arranged outside the reservoir in a surrounding manner, a supporting cross post is arranged above the bearing layer in a cross manner, a drainage plate is laid above the supporting cross post, a physical filter layer is arranged above the drainage plate, a cultivation soil matrix layer is laid above the physical filter layer, and a vegetation area is uniformly arranged on the upper surface of the cultivation soil matrix layer. The utility model can absorb nitrogen, phosphorus and other elements in the air, purify the urban air and reduce the urban heat island effect; and the ground water level can be effectively reduced in rainy season, the pressure of an underground pipe network water delivery system is reduced, and certain buffer time is provided for ground water delivery.

Description

Novel water storage type green roof under sponge city construction background

Technical Field

The utility model relates to the technical field of urban construction, in particular to a novel water storage type green roof under the background of sponge urban construction.

Background

First, under the influence of climate change and human activity factors, cities face a plurality of water ecological environmental problems such as flood disasters, water resource shortage, black and odorous water bodies, and the like. In recent years, under the common influence of extreme climate and city rapid development, many large and medium-sized cities in China frequently suffer rainstorm and flood disasters, the phenomenon of city 'seeing the sea' seriously affects the normal production and living order and brings huge economic loss to people, and the problem of urban flood becomes one of the problems which need to be solved urgently in city development.

Secondly, sponge city construction becomes a hot research problem in the urban planning construction field and the water resource and water environment field of China, and sponge city construction becomes a priority scheme for solving the urban waterlogging problem and conforms to the trend of national development.

Thirdly, the roof is one of main hardening parts in cities, has the characteristics of large rain collecting surface and fast flow production and confluence, and has important influence on the urban waterlogging. According to the construction concept of sponge cities, the green roof is one of the main contents of the construction of the low-influence development rainwater system, compared with the traditional hardened roof, the green roof has the characteristics that the hydrological characteristics after the urban development and construction are close to those before the development, has the functions of natural accumulation, infiltration and purification of rainwater, is an important way for reducing urban storm runoff (especially reducing the runoff peak value), controlling non-point source pollution and beautifying the city, can be used as a pretreatment measure for continuously utilizing the rainwater, and can also adjust the building temperature, reduce the urban heat island effect and beautify the urban environment.

Fourth, according to the research discovery to ordinary green roof, although green roof can play the effect of adjusting the runoff, damming slowly arranging, can't collect the precipitation and recycle, also can't carry out automatic irrigation to the vegetable layer on green roof.

As described above, the development and application of new impoundment type green roofs will become an important issue.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel water storage type green roof under the background of sponge city construction, and aims to solve the technical problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a novel water storage type green roof under the background of sponge city construction comprises a water storage tank, wherein a waterproof protective layer is laid at the bottom of the water storage tank, a supporting upright post is vertically arranged in the water storage tank, a bearing layer is horizontally arranged at the top of the supporting upright post, a filter tank is encircled outside the water storage tank, a water baffle is vertically arranged at the bottom of the bearing layer between the inner wall of the filter tank and the outer wall of the water storage tank, a gap exists between the bottom end of the water baffle and the bottom of the filter tank, a supporting cross post is arranged above the bearing layer in a cross shape, a drainage plate is laid above the supporting cross post, a physical filter layer is arranged above the drainage plate, geomembranes are wrapped at the bottom and the side of the physical filter layer, a culture soil matrix layer is laid above the physical filter layer, a solar deinsectization lamp is installed at the middle position of the upper surface of the culture soil matrix layer, and a vegetation area is uniformly arranged on the upper surface of the culture soil matrix layer, a cross sidewalk is arranged between the vegetation areas.

Preferably, the upper end of cultivation soil matrix layer one side is provided with first pipe in water, normally open valve is installed to the upper end of first pipe in water, when the rainfall was too big reaches first pipe in water height, the rainwater was arranged to ground through first pipe in water, can not store up too much rainwater in the vegetation district, unlikely vegetation district plant is dead because of the excessive water yield, or the water yield is too many and spills over, the bottom of first pipe in water extends to the below position department of cistern bottom place horizontal plane, the upper end of cultivation soil matrix layer opposite side is provided with the raceway, the bottom of raceway and the lateral wall intercommunication of cistern bottom, and first normally closed type solenoid valve is installed to the bottom of raceway.

Preferably, be connected with the second pipe in water on the cistern lateral wall of raceway one side, and the upper end of second pipe in water installs the second normally closed type solenoid valve, and the bottom of second pipe in water extends to the below of cistern bottom place horizontal plane, and when the water level in the cistern reached warning water level line, the water level controller control second normally closed type solenoid valve opened, makes the water in the cistern discharge through the second pipe in water.

Preferably, the drain bar is high in the middle and low in the periphery, so that water can conveniently fall into the filter tank from the periphery of the drain bar.

Preferably, the upper end of breakwater is provided with the air vent, and the upper end level between breakwater outer wall and the filtering ponds inner wall is provided with the perforated plate, and the nanometer filter ball has been laid to the top of perforated plate, and after the rainwater flowed down through the drain bar, chemical filtration was carried out through the nanometer filter ball, water-purifying.

Preferably, a water level controller is installed on the side wall of the upper end of the supporting upright post, a warning water level line is arranged in the plane of the water storage tank where the water level controller is located, the height of the warning water level line is equal to that of the porous plate, and when the water level in the water storage tank reaches the warning water level line, the water level controller controls the second normally-closed electromagnetic valve to be opened, so that water in the water storage tank is discharged through the second water pipe.

Preferably, the top of cistern is provided with the curved surface net, makes things convenient for the entering of rainwater.

Preferably, the intermediate position department in vegetation area installs soil moisture sensor and rotatory shower nozzle of watering, soil moisture sensor is used for monitoring the soil moisture in vegetation area, waters rotatory shower nozzle when humidity is less than the setting value and waters in the vegetation area.

Preferably, a main water flow pipe is arranged in the sidewalk, the end part of the main water flow pipe is communicated with the end part of the water delivery pipe, and the main water flow pipe is connected with the rotary irrigation spray head through a water flow branch pipe.

Compared with the prior art, the utility model has the beneficial effects that:

(1) the novel green roof is planted with green vegetation, can absorb elements such as nitrogen, phosphorus and the like in the air, purify the urban air and reduce the urban heat island effect;

(2) the utility model innovatively provides a filtering tank and a reservoir for repairing the roof of a building, collects and purifies rainfall for reuse, can effectively reduce the ground water level in rainy seasons, reduces the pressure of an underground pipe network water delivery system, and provides certain buffer time for ground water delivery;

(3) according to the utility model, the automatic irrigation system is added, the vegetable layer of the traditional green roof needs to be maintained regularly, and the automatic irrigation system can accurately judge the soil moisture content change, so that the soil moisture content change can be irrigated automatically, and the normal growth of plants can be ensured;

(4) the water storage tank is provided with the water level controller, so that water overflow caused by water stored in the water storage tank all the time is avoided.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic top view of the cultivation soil matrix layer of the present invention;

FIG. 3 is a schematic view of the structure of the bearing layer of the present invention;

FIG. 4 is a schematic diagram of a multi-well plate structure according to the present invention;

fig. 5 is a schematic view of the structure of the water reservoir of the present invention.

In the figure: 1. a first downpipe; 2. a normally open valve; 3. cultivating the soil matrix layer; 4. a solar deinsectization lamp; 5. a soil humidity sensor; 6. irrigating the rotating spray head; 7. a water delivery pipe; 8. a first normally closed solenoid valve; 9. a second normally closed solenoid valve; 10. a physical filtration layer; 11. a geomembrane; 12. a drain plate; 13. supporting the transverse column; 14. a bearing layer; 15. a vent hole; 16. a perforated plate; 17. a filtration tank; 18. a water baffle; 19. a curved mesh; 20. warning a water level line; 21. supporting the upright post; 22. a water level controller; 23. a waterproof protective layer; 24. a reservoir; 25. a vegetation area; 26. a water flow main pipe; 27. a water flow branch pipe; 28. a second downpipe; 29. a nano-filter ball; 30. a sidewalk.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, an embodiment of the present invention is shown: a novel water storage type green roof under the background of sponge city construction comprises a reservoir 24, a waterproof protective layer 23 is laid at the bottom of the reservoir 24, a curved surface net 19 is arranged at the top of the reservoir 24, a support upright post 21 is vertically arranged inside the reservoir 24, and the support upright post 21 is directly connected with a bearing layer 14 and used for supporting the bearing layer 14 and all the weights above;

a water level controller 22 is arranged on the side wall of the upper end of the supporting upright post 21, a warning water level line 20 is arranged in the plane of a reservoir 24 where the water level controller 22 is positioned, and the height of the warning water level line 20 is equal to that of the porous plate 16;

the top of the supporting upright post 21 is horizontally provided with a bearing layer 14, the bearing layer 14 is in a concave-convex shape, so that a soil layer at the edges of the geomembrane 11 and the drainage plate 12 is prevented from falling, a gap is formed between the edge of the bearing layer 14 and the outer wall of the filtering tank 17, the filtering tank 17 is surrounded on the outer side of the water storage tank 24, a water baffle 18 is vertically arranged at the bottom of the bearing layer 14 between the inner wall of the filtering tank 17 and the outer wall of the water storage tank 24, and a gap is formed between the bottom end of the water baffle 18 and the bottom of the filtering tank 17;

the upper end of the water baffle 18 is provided with a vent hole 15, which ensures that the outside is communicated with the reservoir 24, ensures that the atmospheric pressure is the same, and is beneficial to the smooth flow of water into the reservoir 24, meanwhile, the outer wall of the filtering tank 17 which is horizontal to the vent hole 15 is provided with a proper opening, which is convenient for the replacement of the nanometer filtering ball 29 in the later period, the upper end between the outer wall of the water baffle 18 and the inner wall of the filtering tank 17 is horizontally provided with a porous plate 16, the nanometer filtering ball 29 is paved above the porous plate 16, and after rainwater flows down through the drainage plate 12, the rainwater is chemically filtered through the nanometer filtering ball 29, so as to purify the water quality;

a supporting cross column 13 is arranged above the bearing layer 14 in a cross shape, a drainage plate 12 is laid above the supporting cross column 13, and under the supporting action of the supporting cross column 13, the drainage plate 12 is in a shape with a high middle part and a low periphery, so that water can fall into the filter tank 17 from the periphery of the drainage plate 12;

a physical filter layer 10 is arranged above the drainage plate 12, the physical filter layer 10 comprises cobblestones, sand stones, vermiculite and the like, is used for filtering water flowing downwards, can prevent the cultivation soil matrix layer 3 from losing under the action of water flow, the bottom and the side surfaces of the physical filter layer 10 are wrapped with geomembranes 11, the cultivation soil matrix layer 3 and the physical filter layer 10 are completely wrapped, the sand stones and soil layers are prevented from falling into a filter tank 17, the cleaning difficulty is increased, a cultivation soil matrix layer 3 is paved above the physical filter layer 10, and the cultivation soil matrix layer 3 is made of light soil, so that the roof bearing quality is reduced;

the upper end of one side of the cultivation soil matrix layer 3 is provided with a first downpipe 1, the upper end of the first downpipe 1 is provided with a normally open valve 2, when the rainfall reaches the height of the first downpipe 1 too much, the rainwater is discharged to the ground through the first downpipe 1, too much rainwater cannot be stored in the vegetation area 25, the plants in the vegetation area 25 cannot die due to too much water or overflow due to too much water, the bottom end of the first downpipe 1 extends to the position below the horizontal plane where the bottom of the reservoir 24 is located, the upper end of the other side of the cultivation soil matrix layer 3 is provided with a water delivery pipe 7, the bottom end of the water delivery pipe 7 is communicated with the side wall of the bottom end of the reservoir 24, and the bottom end of the water delivery pipe 7 is provided with a first normally closed electromagnetic valve 8;

a second downpipe 28 is connected to the side wall of the reservoir 24 on one side of the water pipe 7, a second normally closed electromagnetic valve 9 is installed at the upper end of the second downpipe 28, the bottom end of the second downpipe 28 extends to the lower part of the horizontal plane where the bottom of the reservoir 24 is located, and when the water level in the reservoir 24 reaches the warning water level line 20, the water level controller 22 controls the second normally closed electromagnetic valve 9 to be opened, so that the water in the reservoir 24 is discharged through the second downpipe 28;

the solar deinsectization lamp 4 is arranged in the middle of the upper surface of the cultivation soil matrix layer 3, so that the vegetables and fruits in the vegetation area 25 are prevented from suffering from insect damage, the vegetation area 25 is uniformly arranged on the upper surface of the cultivation soil matrix layer 3, and the cross-shaped sidewalks 30 are arranged between the vegetation areas 25;

soil moisture sensor 5 and watering rotatory nozzle 6 are installed to the intermediate position department in vegetation district 25, water main 26 has been arranged in pavement 30, water main 26's tip and raceway 7's tip intercommunication, water main 26 passes through water branch pipe 27 and is connected with watering rotatory nozzle 6, soil moisture sensor 5 is used for monitoring the soil moisture to vegetation district 25, when humidity is less than the setting value, first normally closed solenoid valve 8 opens, and carry the water of storage to water main 26 and water branch pipe 27 in proper order through raceway 7 through the water pump of installation in cistern 24, at last, water the operation through watering rotatory nozzle 6 to vegetation district 25.

When the embodiment of the application is used, when the rainfall is too large and reaches the height of the first downpipe 1, the rainwater is discharged to the ground through the first downpipe 1, too much water cannot be stored in the vegetation area 25, and plants in the vegetation area 25 cannot die due to too much water or overflow due to too much water; the cultivation soil matrix layer 3 adopts light matrix to cultivate plants, and has smaller weight; the solar deinsectization lamp 4 can prevent the vegetables and fruits in the vegetation area 25 from suffering from insect damage; the soil humidity sensor 5 is used for detecting the humidity of soil in the vegetation area 25, when the soil moisture content is low and does not conform to the growth of plants, signal conduction is carried out, after an instruction is received, the first normally closed electromagnetic valve 8 is opened, a water pump is arranged in the water storage tank 24, water in the water storage tank 24 is conveyed to the vegetation area 25 through the water conveying pipe 7 and is sprayed out by the irrigation rotary spray head 6; when the water in the reservoir 24 reaches the alarm water level line 20, the second normally closed electromagnetic valve 9 is opened, and the water in the reservoir 24 is discharged through the second downpipe 28; the physical filter layer 10 comprises cobblestones, sandstone materials, vermiculite and the like, is used for filtering the water flowing downwards, and can prevent the culture soil matrix layer 3 from losing under the action of water flow; the geomembrane 11 completely wraps the cultivation soil matrix layer 3 and the physical filter layer 10, so that sand stones and soil layers are prevented from falling into the filter tank 17, and the cleaning difficulty is increased; the supporting transverse column 13 is a round or square column body which is used as a support and is made into a cross shape, so that the drainage plate 12 is in a shape with a high middle and a low periphery, and water is favorably drained into the filter tank 17 from the periphery; the vent hole 15 ensures that the outside is communicated with the reservoir 24, the same atmospheric pressure is ensured, water can smoothly flow into the reservoir 24, and a proper opening is arranged on the outer wall of the filtering tank 17 which is horizontal to the vent hole 15, so that the nano filtering ball 29 can be conveniently replaced in the later period; the porous plate 16 has a plurality of fine holes, the nano-filter balls 29 are blocked on the porous plate 16, and when rainwater flows down through the drainage plate 12, the rainwater is chemically filtered by the nano-filter balls 29 to purify the water.

Claims (9)

1. The utility model provides a novel retaining formula green roof under sponge city construction background which characterized in that: the cultivation soil matrix layer comprises a water storage tank (24), a waterproof protective layer (23) is laid at the bottom of the water storage tank (24), a support upright post (21) is vertically arranged in the water storage tank (24), a bearing layer (14) is horizontally arranged at the top of the support upright post (21), a filter tank (17) is encircled outside the water storage tank (24), a water baffle (18) is vertically arranged at the bottom of the bearing layer (14) between the inner wall of the filter tank (17) and the outer wall of the water storage tank (24), a gap exists between the bottom end of the water baffle (18) and the bottom of the filter tank (17), a support cross column (13) is arranged above the bearing layer (14) in a cross shape, a drainage plate (12) is laid above the support cross column (13), a physical filter layer (10) is arranged above the drainage plate (12), geomembranes (11) are wrapped at the bottom and the side of the physical filter layer (10), a cultivation soil matrix layer (3) is laid above the physical filter layer (10), the solar deinsectization lamp (4) is installed in the middle of the upper surface of the cultivation soil matrix layer (3), vegetation areas (25) are uniformly arranged on the upper surface of the cultivation soil matrix layer (3), and cross sidewalks (30) are arranged between the vegetation areas (25).

2. The novel water-storage green roof under the background of sponge city construction as claimed in claim 1, wherein: the upper end of cultivation soil matrix layer (3) one side is provided with first pipe in water (1), normally open valve (2) are installed to the upper end of first pipe in water (1), the bottom of first pipe in water (1) extends to the lower position department of cistern (24) bottom place horizontal plane, the upper end of cultivation soil matrix layer (3) opposite side is provided with raceway (7), the bottom of raceway (7) and the lateral wall intercommunication of cistern (24) bottom, and first normally closed type solenoid valve (8) are installed to the bottom of raceway (7).

3. The novel water-storage green roof under the background of sponge city construction as claimed in claim 2, wherein: and a second downpipe (28) is connected to the side wall of the reservoir (24) on one side of the water pipe (7), a second normally-closed electromagnetic valve (9) is installed at the upper end of the second downpipe (28), and the bottom end of the second downpipe (28) extends to the position below the horizontal plane of the bottom of the reservoir (24).

4. The novel water-storage green roof under the background of sponge city construction as claimed in claim 1, wherein: the drainage plate (12) is high in the middle and low in the periphery.

5. The novel water-storage green roof under the background of sponge city construction as claimed in claim 1, wherein: the upper end of the water baffle (18) is provided with a vent hole (15), the upper end between the outer wall of the water baffle (18) and the inner wall of the filtering tank (17) is horizontally provided with a porous plate (16), and a nano filtering ball (29) is laid above the porous plate (16).

6. The novel water-storage green roof under the background of sponge city construction as claimed in claim 5, wherein: install water level controller (22) on the lateral wall of support column (21) upper end, be provided with warning water level line (20) in cistern (24) plane at water level controller (22) place, and the height of warning water level line (20) equals with the height of perforated plate (16).

7. The novel water-storage green roof under the background of sponge city construction as claimed in claim 1, wherein: the top of the water reservoir (24) is provided with a curved surface net (19).

8. The novel water-storage green roof under the background of sponge city construction as claimed in claim 2, wherein: and a soil humidity sensor (5) and a watering rotating nozzle (6) are arranged at the middle position of the vegetation area (25).

9. The novel water-storage green roof under the background of sponge city construction as claimed in claim 8, wherein: the sidewalk (30) is internally provided with a main water flow pipe (26), the end part of the main water flow pipe (26) is communicated with the end part of the water conveying pipe (7), and the main water flow pipe (26) is connected with the rotary irrigation spray head (6) through a branch water flow pipe (27).

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