CN217651934U

CN217651934U - Sponge city device that catchments based on capillary barrier mechanism

Info

Publication number: CN217651934U
Application number: CN202221582559.6U
Authority: CN
Inventors: 孙冲; 杨俊杰; 刘强; 武亚磊
Original assignee: Ocean University of China
Current assignee: Ocean University of China
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2022-10-25
Anticipated expiration: 2032-06-23

Abstract

The utility model discloses a sponge city water collecting device based on capillary barrier mechanism, which comprises a capillary barrier temporary water storage system for temporarily storing surface water, a water guide system for guiding the surface water, and a water collecting system for collecting the surface water; the temporary water storage system of the capillary barriers comprises a natural soil layer and an auxiliary barrier portion, the auxiliary barrier portion is obliquely arranged with the water guide system, the lower end of the auxiliary barrier portion is communicated with the high end of the water guide system, and the lower end of the water guide system is communicated with the top end of the side wall of the water collecting system. The utility model discloses a water-collecting device simple structure, construction, maintenance are simple and convenient, and application scope is wide, can solve the water waste problem that cyclic utilization system was collected to current sponge city moisture, simultaneously the utility model discloses a water-collecting device is less than traditional drainage, the pipeline that water-collecting system used to the pipeline that uses is not as main collection, drainage component, consequently, the utility model discloses a water-collecting device receives the influence of the frost heaving problem in winter little.

Description

Sponge city device that catchments based on capillary barrier mechanism

Technical Field

The utility model belongs to the technical field of geotechnical engineering and environmental engineering, especially, relate to a sponge city device of catchmenting based on capillary barrier mechanism.

Background

The most important characteristics of sponge city construction are collection and cyclic utilization of atmospheric precipitation, city irrigation water and road cleaning water, and the efficient water cyclic utilization method can improve the utilization rate of city water, save the city water, irrigate green plants in arid seasons and the like.

The existing sponge urban water collection and recycling system or the existing sponge urban water collection and recycling system collects water through the ground permeable material, releases water during drought, has limited water holding capacity, and only can the water exceeding the water holding capacity of the permeable material be discharged through an urban sewage system, so that water resource waste is caused; or the flower tubes are buried underground to collect water in the water pool, but too many pipelines are complicated to lay and difficult to maintain; and the northern cities in China face the problem of frost heaving in winter.

Therefore, how to provide a collection cyclic utilization system that catchments ability reinforce, the construction is simple and convenient, maintains simply, is applicable to the precipitation in sponge city, city irrigation water, the road cleaning water of cold weather condition, is the problem that sponge city design and construction is urgent to solve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sponge city water-collecting device based on capillary protective screen mechanism to solve the water waste problem that cyclic utilization system caused because of the water-holding capacity is limited and pipeline frost heaving problem in winter in the system is collected to current sponge city moisture.

In order to achieve the above purpose, the utility model provides a following scheme: a sponge city water collecting device based on a capillary barrier mechanism comprises a capillary barrier temporary water storage system for temporarily storing surface water, a water guide system for guiding the surface water and a water collecting system for collecting the surface water;

the capillary barrier temporary water storage system comprises a natural soil layer and an auxiliary barrier part, the auxiliary barrier part and the water guide system are obliquely arranged, the lower end of the auxiliary barrier part is communicated with the high end of the water guide system, and the lower end of the water guide system is communicated with the top end of the side wall of the water collection system.

Preferably, supplementary barrier portion includes the grit barrier layer, geotechnological cloth has been laid on grit barrier layer top, the sand water guide layer has been laid on geotechnological cloth top, another layer has been laid to sand water guide layer top geotechnological cloth, the grit barrier layer the sand water guide layer the geotechnological cloth all inclines to set up, sand water guide layer low side with the high-end intercommunication of water guide system.

Preferably, the water guide system comprises a perforated pipe, one side of the perforated pipe is communicated with the lower end of the medium sand water guide layer, the other side of the perforated pipe is communicated with the high end of a drainage pipeline, and the lower end of the drainage pipeline is communicated with the top end of the side wall of the water collection system.

Preferably, one side of the perforated pipe, which is close to the lower end of the medium sand water guide layer, is provided with a plurality of water permeable holes.

Preferably, the water collecting system includes the header tank, the header tank is close to drainage pipe's lateral wall top with drainage pipe low side intercommunication, another lateral wall middle part of header tank is provided with overflow portion, the header tank roof be close to the one end of overflow portion is provided with the portion of taking out water, header tank roof middle part fixedly connected with light, the header tank roof other end is provided with maintenance portion, overflow portion with the portion of taking out water the light electric connection.

Preferably, the overflow portion includes the overflow pipe, overflow pipe one end is located in the header tank, the overflow pipe other end passes the header tank lateral wall is located the header tank outside, header tank inside wall fixedly connected with generator, the impeller of generator is located inside the overflow pipe, generator electric connection has the battery, the portion of taking out water the light with battery electric connection.

Preferably, the water pumping part comprises a water pump, the water pump is fixedly connected with the top wall of the water collecting tank, a water inlet of the water pump is communicated with the top end of a water drawing pipe, the bottom end of the water drawing pipe is positioned at the bottom of the water collecting tank, a filter screen is fixedly connected with the bottom end of the water drawing pipe, a water outlet of the water pump is communicated with the bottom end of a water draining pipe, the top end of the water draining pipe penetrates through the top wall of the water collecting tank and then is positioned above the ground, and the water pump is electrically connected with the generator.

Preferably, the maintenance portion includes the access cover, the access cover sets up at the earth's surface, the access passage has been seted up to access cover below, access passage bottom with header tank top intercommunication, fixedly connected with hangs the ladder in the access passage, it is located to hang the ladder top under the access cover, it is located to hang the ladder bottom the inside intermediate position of header tank.

The utility model discloses has following technological effect:

1. the utility model discloses can be applicable to the cold area in the north of china, can not take place winter frost heave phenomenon in comparison in current sponge city water collection system.

2. The utility model has strong water resource transmission and storage capacity, and can effectively improve the utilization rate of water resources in moist semi-moist areas compared with the existing sponge city water collection system; the thickness of each functional layer of the temporary water storage and guide system of the capillary barrier can be freely adjusted according to the annual precipitation of the city.

3. The utility model discloses the reliability is high, maintains simply, compares in the difficult jam inefficacy of current sponge city water collection system, and the capillary barrier layer has clean filtration water source impurity, promotes the effect of quality of water.

4. The utility model discloses only need lay a small amount of drainage pipe, compare and lay a large amount of pipeline catchments in current sponge city water collection system, have the construction simply, advantage with low costs.

5. The utility model discloses an auxiliary barrier portion has certain filter effect, has carried out the prefilter when collecting moisture, has promoted quality of water.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

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

fig. 2 is a top view of the whole structure of the present invention;

FIG. 3 is a side view of the overall structure of the present invention;

fig. 4 is a schematic structural diagram of the water guide system of the present invention.

Wherein, 1, a capillary barrier temporary water storage system; 11. a natural soil layer; 12. geotextile; 13. A medium sand water guide layer; 14. a grit barrier layer; 2. a water conducting system; 21. a floral tube; 22. a water drainage pipeline; 23. water permeable holes; 3. a water collection system; 31. a water collection tank; 32. an access cover; 33. a water pump; 34. a water drawing pipe; 35. filtering with a screen; 36. a drain pipe; 37. a generator; 38. an overflow pipe; 39. a lighting lamp; 310. and (7) hanging a ladder.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1-4, the utility model discloses a sponge city water collection device based on capillary barrier mechanism, which comprises a capillary barrier temporary water storage system 1 for temporarily storing surface water, a water guide system 2 for guiding the surface water, and a water collection system 3 for collecting the surface water;

the capillary barrier temporary water storage system 1 comprises a natural soil layer 11 and an auxiliary barrier part, the auxiliary barrier part is obliquely arranged with the water guide system 2, the lower end of the auxiliary barrier part is communicated with the high end of the water guide system 2, and the lower end of the water guide system 2 is communicated with the top end of the side wall of the water collection system 3.

Further optimize the scheme, supplementary barrier portion includes grit barrier layer 14, and geotechnological cloth 12 has been laid on 14 tops of grit barrier layer, and well sand water guide layer 13 has been laid on 12 tops of geotechnological cloth, and another layer of geotechnological cloth 12 has been laid on 13 tops of well sand water guide layer, and grit barrier layer 14, well sand water guide layer 13, geotechnological cloth 12 all incline the setting, and 13 low sides of well sand water guide layer communicate with the high-end of water guide system 2.

The thickness of the natural soil layer 11 above the auxiliary barrier portion can be adjusted according to urban annual rainfall, the laying angle of the auxiliary barrier portion can be adjusted according to the length of the capillary barrier temporary water storage system 1, the local maximum rainfall intensity and the local climate conditions, the adjusting range is 5-25 degrees, the laying angle under the semi-humid and humid climate conditions is larger than 15 degrees, when the laying angle is larger than 15 degrees, the medium sand water guide layer 13 and the gravel barrier layer 14 can be kept stable by adopting geocells when being laid, the medium sand water guide layer 13 and the gravel barrier layer 14 are uniform in particle size, the water inlet value of the medium sand water guide layer 13 is smaller than 1/10 of the water inlet value of the gravel barrier layer 14, the median particle size of the medium sand water guide layer 13 is larger than 10 times of the natural soil layer 11 above, the geotextile 12 adopts non-woven geotextile with good water permeability, and the geotextile 12 cuts off the saturated permeability coefficient which is larger than the permeability coefficients of the medium sand water guide layer 13 and the gravel barrier layer 14. The thickness of the medium sand water-conducting layer 13 can be adjusted according to the single maximum rainfall amount, and the thickness of the gravel barrier layer 14 can be adjusted according to the highest groundwater level burial depth. The natural soil layer 11 above the auxiliary barrier section is backfilled to the ground after the gravel barrier layer 14, the geotextile 12, the medium sand water-conducting layer 13 and the geotextile 12 are laid in sequence. Geotextile 12 serves to prevent mixing of particles from different soil layers.

In a further optimized scheme, the water guide system 2 comprises a perforated pipe 21, one side of the perforated pipe 21 is communicated with the lower end of the medium sand water guide layer 13, the other side of the perforated pipe 21 is communicated with the high end of a water discharge pipeline 22, and the lower end of the water discharge pipeline 22 is communicated with the top end of the side wall of the water collection system 3.

In a further optimized scheme, one side of the perforated pipe 21 close to the lower end of the medium sand water guide layer 13 is provided with a plurality of water permeable holes 23.

The outer side wall of floral tube 21 wraps up there is the filtering layer, drainage pipe 22 can select different pipe diameters according to the thickness change of middling sand water guide layer 13, when middling sand water guide layer 13 thickness is great, the lower extreme that many floral tubes 21 embedded into middling sand water guide layer 13 can be selected for use, the filtering layer of floral tube 21 can adopt nonwoven geotechnological cloth or geogrid, local each year rainstorm (50 mm/d) number of times is greater than 5 and chooses geogrids for use more than, the geogrid aperture is less than middling sand water guide layer 13 particle diameter, the optional connector or threaded connection of the connection form of floral tube 21 and drainage pipe 22, guarantee interface leakproofness.

Further optimize the scheme, collecting system 3 includes header tank 31, and header tank 31 is close to drainage pipe 22's lateral wall top and drainage pipe 22 low side intercommunication, and another lateral wall middle part of header tank 31 is provided with the overflow portion, and the header tank 31 roof one end that is close to the overflow portion be provided with the portion of taking out water, and header tank 31 roof middle part fixedly connected with light 39, and the header tank 31 roof other end is provided with overhauls the portion, overflow portion and the portion of taking out water, light 39 electric connection.

Further optimize the scheme, overflow portion includes

overflow pipe

38, and 38 one end of overflow pipe is located header tank 31, and the 38 other end of overflow pipe passes header tank 31 lateral wall and is located the header tank 31 outside, and 31 inside wall fixedly connected with generators 37 of header tank, generators 37's impeller are located inside overflow pipe 38, and generators 37 electric connection has the battery, and the portion of drawing water, light 39 and battery electric connection.

The generator 37 is a permanent magnet generator, water in the overflow pipe 38 flows through an impeller of the generator 37 to enable the generator 37 to generate electric energy, the generated electric energy is stored in the storage battery, and the storage battery is electrically connected with the water pumping part and the illuminating lamp 39.

According to a further optimized scheme, the water pumping portion comprises a water pump 33, the water pump 33 is fixedly connected with the top wall of the water collecting tank 31, a water inlet of the water pump 33 is communicated with the top end of a water drawing pipe 34, the bottom end of the water drawing pipe 34 is located at the bottom of the water collecting tank 31, a filter screen 35 is fixedly connected with the bottom end of the water drawing pipe 34, a water outlet of the water pump 33 is communicated with the bottom end of a water drainage pipe 36, the top end of the water drainage pipe 36 penetrates through the top wall of the water collecting tank 31 and then is located above the ground, and the water pump 33 is electrically connected with a generator 37.

Further optimize the scheme, maintenance portion is including maintenance lid 32, and maintenance lid 32 sets up at the earth's surface, and maintenance channel has been seted up to maintenance lid 32 below, and maintenance channel bottom and 31 top intercommunications of header tank, fixedly connected with hang ladder 310 in the maintenance channel hang the ladder 310 top and lie in under maintenance lid 32, hang the ladder 310 bottom and lie in the inside intermediate position of header tank 31.

The water collecting tank 31 is formed by pouring concrete or is made of engineering plastics or composite materials, the volume of the water collecting tank 31 is determined according to the average annual precipitation amount in the local area and is more than 1.5 times of the average annual precipitation amount, and one end of the overflow pipe 38, which is positioned outside the water collecting tank 31, is communicated with the urban rainwater system to discharge excessive water. The access cover 32 is opened and enters the inside of the water collecting tank 31 through the hanging ladder 310, so that the water collecting tank 31 can be cleaned and maintained, and the illuminating lamp 39 is used for providing illumination when cleaning and maintaining.

The utility model discloses a water-collecting device collects the rainwater and stores temporarily when the rainfall, its principle is that the infiltration coefficient is discontinuous under the same matrix suction condition for middling water guide layer 13, grit barrier layer 14, lead to moisture can not ooze along with gravity, store temporarily in upper portion natural soil layer 11, and lead into water collection system 3 through middling water guide layer 13 and water guide system 2 the rainwater of storing, introduce the urban rainwater system through overflow pipe 38 in water collection system 3 in rainy season; and when the water is short of the drought, the water in the water collecting system 3 is pumped by the water pump 33 for utilization.

The water collecting device of the utility model can collect excessive atmospheric precipitation, urban irrigation water and road cleaning water, thereby avoiding water resource waste; water in the medium sand water guide layer 13 is transported to the water collecting system 3 through the water guide system 2, water resources are stored in the rich season, and water resources are reused through the water pump 33 in the dry season.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above-mentioned embodiments are only described in the preferred embodiments of the present invention, but not limited to the scope of the present invention, and various modifications and improvements made by the technical solutions of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.

Claims

1. A sponge city water collecting device based on a capillary barrier mechanism is characterized by comprising a capillary barrier temporary water storage system (1) for temporarily storing surface water, a water guide system (2) for guiding the surface water, and a water collecting system (3) for collecting the surface water;

the capillary barrier temporary water storage system (1) comprises a natural soil layer (11) and an auxiliary barrier part, the auxiliary barrier part is obliquely arranged with the water guide system (2), the lower end of the auxiliary barrier part is communicated with the high end of the water guide system (2), and the lower end of the water guide system (2) is communicated with the top end of the side wall of the water collection system (3);

supplementary barrier portion includes grit barrier layer (14), geotechnological cloth (12) have been laid on grit barrier layer (14) top, middlings water guide layer (13) have been laid on geotechnological cloth (12) top, another layer has been laid on middlings water guide layer (13) top geotechnological cloth (12), grit barrier layer (14) middlings water guide layer (13) geotechnological cloth (12) all slope the setting, middlings water guide layer (13) low side with the high-end intercommunication of water guide system (2).

2. The sponge city water collecting device based on the capillary barrier mechanism as claimed in claim 1, wherein the water guiding system (2) comprises a perforated pipe (21), one side of the perforated pipe (21) is communicated with the lower end of the medium sand water guiding layer (13), the other side of the perforated pipe (21) is communicated with the high end of a drainage pipe (22), and the lower end of the drainage pipe (22) is communicated with the top end of the side wall of the water collecting system (3).

3. The sponge city water collecting device based on the capillary barrier mechanism as claimed in claim 2, wherein the side of the perforated pipe (21) near the lower end of the medium sand water guiding layer (13) is provided with a plurality of water permeable holes (23).

4. The sponge city water collecting device based on the capillary barrier mechanism as claimed in claim 2, wherein the water collecting system (3) comprises a water collecting tank (31), the top end of the side wall of the water collecting tank (31) close to the water draining pipeline (22) is communicated with the lower end of the water draining pipeline (22), the middle part of the other side wall of the water collecting tank (31) is provided with an overflow part, one end of the top wall of the water collecting tank (31) close to the overflow part is provided with a water pumping part, the middle part of the top wall of the water collecting tank (31) is fixedly connected with a lighting lamp (39), the other end of the top wall of the water collecting tank (31) is provided with an overhaul part, and the overflow part is electrically connected with the water pumping part and the lighting lamp (39).

5. A sponge city water collecting device based on capillary barrier mechanism according to claim 4, characterized in that the overflow part comprises an overflow pipe (38), one end of the overflow pipe (38) is located in the water collecting tank (31), the other end of the overflow pipe (38) passes through the side wall of the water collecting tank (31) and is located outside the water collecting tank (31), the inner side wall of the water collecting tank (31) is fixedly connected with a generator (37), the impeller of the generator (37) is located inside the overflow pipe (38), the generator (37) is electrically connected with a storage battery, and the water pumping part, the illuminating lamp (39) are electrically connected with the storage battery.

6. The sponge city water collecting device based on the capillary barrier mechanism as claimed in claim 5, wherein the water pumping part comprises a water pump (33), the water pump (33) is fixedly connected with the top wall of the water collecting tank (31), the water inlet of the water pump (33) is communicated with the top end of a water drawing pipe (34), the bottom end of the water drawing pipe (34) is located at the bottom of the water collecting tank (31), the bottom end of the water drawing pipe (34) is fixedly connected with a filter screen (35), the water outlet of the water pump (33) is communicated with the bottom end of a water draining pipe (36), the top end of the water draining pipe (36) passes through the top wall of the water collecting tank (31) and then is located above the ground, and the water pump (33) is electrically connected with the generator (37).

7. The sponge city water collecting device based on capillary barrier mechanism as claimed in claim 4, wherein the maintenance part comprises an access cover (32), the access cover (32) is arranged on the ground surface, an access passage is arranged below the access cover (32), the bottom end of the access passage is communicated with the top end of the water collecting tank (31), a hanging ladder (310) is fixedly connected in the access passage, the top end of the hanging ladder (310) is located under the access cover (32), and the bottom end of the hanging ladder (310) is located in the middle position inside the water collecting tank (31).