CN216795861U

CN216795861U - Ecological tree pool with initial discarding and rainwater purification functions

Info

Publication number: CN216795861U
Application number: CN202220522791.4U
Authority: CN
Inventors: 吕薇
Original assignee: Tianjin University
Current assignee: Tianjin University
Priority date: 2022-03-10
Filing date: 2022-03-10
Publication date: 2022-06-24
Anticipated expiration: 2032-03-10

Abstract

The utility model discloses an ecological tree pool with initial drainage and rainwater purification functions, which comprises a waterproof concrete box, wherein a rainwater purification device and a water storage device are arranged in the waterproof concrete box, an initial drainage device is arranged on one side of the waterproof concrete box, the initial drainage device comprises an initial drainage box, a partition plate is fixedly arranged in the initial drainage box, the partition plate divides the interior of the initial drainage box into an initial rainwater storage space and a later rainwater passing space, a rainwater port is arranged on one side of the initial drainage box, rainwater with poor initial water quality is drained through the initial drainage device of the ecological tree pool, and the rainwater is recycled and stored through the rainwater purification device and the water storage device, the ecological tree pool has the characteristics of high quality of purified water, easy acquisition of filling materials, low manufacturing cost, green and sustainable effects, and is simple in structure, has wide application range, and can be produced in a standardized way and popularized quickly.

Description

Ecological tree pool with initial discarding and rainwater purification functions

Technical Field

The utility model relates to the technical field of ecological tree pools in green infrastructure, in particular to an ecological tree pool with initial drainage and rainwater purification functions.

Background

Along with the rapid urbanization construction, the waterproof hard area is increased, the urban hydrological process is greatly changed, the rainwater infiltration is weakened, the surface runoff is increased, and the urban water problems that the urban surface runoff carries pollutants, roads accumulate rainwater and the like are increasingly remarkable. Analyzing the rainfall process, it can be known that the pollutants are mainly: 1) the atmospheric pollutants, including bacteria, dust and the like in the air, mainly indicate that indexes such as SS, COD and the like in the water quality exceed standards; 2) and surface pollutants including dust, heavy metals, grease and the like. The degree of the rain water scouring the road surface is large, the pollutant concentration is high, the influence on the water quality is large, and the initial rain water pollution degree can exceed that of the domestic sewage. If the initial runoff is directly utilized or discharged to natural water without treatment, pollution is caused and the burden of the rainwater treatment device is increased.

The waterproof pavement is generally arranged around the traditional tree pool, so that the problem that the root system of the tree is rotten due to the fact that accumulated water in the tree pool cannot be discharged in rainstorm weather can be caused. In addition, for preventing the pedestrian from trampling, the edge of the traditional tree pool can be higher than the soil by several centimeters, and rainwater can not flow into the tree pool. Although the ecological tree pool serving as a technical measure in green infrastructure is improved on the basis of the traditional tree pool, the function of collecting and utilizing rainwater is increased, most of the ecological tree pool is lack of a function of purifying pollutants in surface runoff, and a seriously polluted water body can damage the permeability of plant cell membranes, so that the permeability is increased, intracellular enzyme is disordered, and plants are poor in growth and even die; the photosynthesis of the plants can be blocked, so that the plants can not grow normally; also can cause respiratory disorders in plants; endanger the heredity of plant cell, make its gene change, unfavorable to plant growth, current ecological tree pool practicality is poor, is unfavorable for plant growth.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides an ecological tree pool with initial drainage and rainwater purification functions.

In order to achieve the purpose, the utility model adopts the following technical scheme:

an ecological tree pool with initial drainage and rainwater purification functions comprises a waterproof concrete box, wherein a rainwater purification device and a water storage device are arranged in the waterproof concrete box, and an initial drainage device is arranged on one side of the waterproof concrete box;

the initial stage flow discarding device comprises an initial stage flow discarding box which is fixedly connected with one side of the waterproof concrete box, the inner part of the initial stage flow discarding box is fixedly provided with a partition plate which divides the inner part of the initial stage flow discarding box into an initial stage rainwater storage space and a later stage rainwater passing space, the later-stage rainwater passing space is arranged at the top of the initial rainwater storage space, one side of the initial rainwater discarding box is provided with a rainwater inlet, the rainwater inlet is arranged at one side of the later rainwater passing space, the partition plate is movably connected with a baffle plate through a rotating shaft, the bottom end of the baffle is movably connected with a hard rod through a movable hinged support, the bottom end of the hard rod is fixedly connected with a buoyancy pellet, the rainwater at the later stage passes through the inside fixedly connected with metal filter screen in space, the metal filter screen is established between inlet for stom water and baffle, the initial stage is abandoned and is flowed the bottom end and fixedly be equipped with the sewage pipe.

Furtherly, water storage device is including planting the case and purifying water cistern, it all establishes at waterproof concrete incasement portion to plant case and aqueduct, just plant case fixed connection on purifying water cistern top, it is equipped with the soil horizon and plants the layer to plant incasement portion, it establishes at the soil horizon top to plant the layer, purify the inside fixedly connected with of cistern a plurality of fibrous rods that absorb water, just the fibrous rod that absorbs water extends to the soil horizon inside.

Further, rainwater purification device includes a plurality of net that separate, separate the net and establish inside waterproof concrete case and the intermediate layer of planting case and purified water cistern, separate the net and separate waterproof concrete case and planting case and purified water cistern intermediate layer for cobble filling layer, rainwater purification packing layer and clean water room, the inside sand filtration layer that is equipped with of clean water room, the cobble filling layer is established at rainwater purification packing layer top, rainwater purification packing layer is established at clean water room top, waterproof concrete case and the intermediate layer top fixedly connected with who plants the case grid that permeates water, the grid that permeates water is established at the cobble filling layer top.

Furthermore, a water outlet is formed between the initial stage flow discarding box and the waterproof concrete box, and the water outlet is respectively communicated with the interior of the initial stage flow discarding box and the interior of the pebble filling layer.

Furthermore, a rainwater well is arranged at the bottom of the waterproof concrete box, a drain pipe is fixedly connected to the other side of the waterproof concrete box, the bottom end of the drain pipe is fixedly connected with the top end of the rainwater well, and the drain pipe is respectively communicated with the rainwater purification packing layer and the interior of the rainwater well.

Furthermore, the two sides of the purified water reservoir are fixedly connected with water guide pipes, and the water guide pipes are respectively communicated with the inside of the purified water reservoir and the inside of the clean water chamber.

Furthermore, curb stones are fixedly connected to the front side, the rear side and the other side of the initial stage flow discarding box.

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

1. the initial runoff rainwater with higher pollutant concentration can be discharged and abandoned through the initial runoff abandoning device;

2. the rainwater purification device can purify and utilize rainwater in the late stage of rainfall, and by improving the material of the filling layer, oyster shells are used as a main filling material, and coconut shell-based activated carbon is used as a secondary filling material to effectively remove harmful substances such as suspended matters, heavy metals and the like in the rainwater, so that the collected rainwater is more beneficial to plant growth, and the cost is low;

3. the purified rainwater can be stored through the water storage device, and meanwhile, water is conveyed to the soil layer through the fiber rods, so that the problem of plant water supply in dry seasons and when rainfall is low is effectively solved;

to sum up, abandon a class device through the initial stage of ecological tree pond, abandon a class to the rainwater that rainfall initial stage quality of water is poor to through rainwater purifier and water storage device, select oyster shell to purify as filler material, retrieve effectively to the rainwater, and have certain retaining function, this ecological tree pond has the high quality of water purification quality, filler material easily acquires, the cost is low, green sustainable characteristics, the mature and simple structure of technique of adoption, wide range of application has, but standardized production and rapid popularization.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.

FIG. 1 is a schematic view of an overall three-dimensional structure of an ecological tree pool with initial drainage and rainwater purification functions according to the present invention;

FIG. 2 is a schematic view of an overall cross-sectional three-dimensional structure of an ecological tree pool with initial drainage and rainwater purification functions according to the present invention;

FIG. 3 is an overall front sectional view of an ecological tree pool with initial drainage and rainwater purification functions according to the present invention;

FIG. 4 is a schematic view of an internal sectional three-dimensional structure of an initial drainage box of an ecological tree pool with both initial drainage and rainwater purification functions according to the present invention;

FIG. 5 is a front sectional view of the interior of the initial drainage box of the ecological tree pool with both initial drainage and rainwater purification functions;

FIG. 6 is a schematic view of the three-dimensional structure of the rigid rods and the buoyant spheres of the ecological tree pool with initial drainage and rainwater purification functions according to the present invention;

FIG. 7 is a top view of the usage effect of the ecological tree pool with initial drainage and rainwater purification functions according to the present invention;

fig. 8 is a diagram illustrating a rainwater discarding process of the ecological tree pool with initial discarding and rainwater purification functions according to the present invention.

In the figure: 1 initial stage abandoning box, 2 waterproof concrete box, 3 sewage pipes, 4 water-absorbing fiber rods, 5 kerbstones, 6 water-permeable grids, 7 pebble filling layers, 8 rainwater purification packing layers, 9 soil layers, 10 drainage pipes, 11 sand filtering layers, 12 clean water chambers, 13 rainwater openings, 14 metal filter screens, 15 initial stage rainwater storage spaces, 16 partition plates, 17 water outlets, 18 baffle plates, 19 hard rods, 20 buoyancy balls, 21 planting boxes, 22 planting layers, 23 partition nets, 24 later stage rainwater passing spaces, 25 aqueducts, 26 purified water reservoirs and 27 rainwater wells.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

Referring to fig. 1-8, an ecological tree pool with both initial drainage and rainwater purification functions comprises a waterproof concrete box 2, a rainwater purification device and a water storage device are arranged inside the waterproof concrete box 2, an initial drainage device is arranged on one side of the waterproof concrete box 2, and the initial drainage device can drain rainwater with poor quality of initial runoff;

the initial stage flow discarding device comprises an initial stage flow discarding box 1, the initial stage flow discarding box 1 is fixedly connected to one side of a waterproof concrete box 2, a partition plate 16 is fixedly arranged inside the initial stage flow discarding box 1, the partition plate 16 divides the interior of the initial stage flow discarding box 1 into an initial stage rainwater storage space 15 and a later stage rainwater passing space 24, the later stage rainwater passing space 24 is arranged at the top of the initial stage rainwater storage space 15, a rainwater inlet 13 is arranged at one side of the initial stage flow discarding box 1, the rainwater inlet 13 is arranged at one side of the later stage rainwater passing space 24, a baffle plate 18 is movably connected onto the partition plate 16 through a rotating shaft, a hard rod 19 is movably connected to the bottom end of the baffle plate 18 through a movable hinge seat, a buoyancy small ball 20 is fixedly connected to the bottom end of the hard rod 19, the buoyancy small ball 20 can float along with the height of the water level in the initial stage rainwater storage space 15, and when the water level is low, the buoyancy small ball 20 drives the baffle plate 18 to open through the hard rod 19 along with the gravity thereof, at this moment, rainwater can enter the interior of the initial rainwater storage space 15, when the water level is high, the buoyancy small balls 20 float upwards under the buoyancy force and push the baffle 18 to be closed through the hard rods 19, at this moment, rainwater can not enter the interior of the initial rainwater storage space 15 but directly enters the interior of the pebble filling layer 7 through the water outlet 17 to be purified by the rainwater purification device, the later-stage rainwater passes through the metal filter screen 14 fixedly connected with the interior of the space 24, the metal filter screen 14 can primarily separate impurities in rainwater which just enters the interior of the initial rainwater discarding box 1 from the rainwater inlet 13, the metal filter screen 14 is arranged between the rainwater inlet 13 and the baffle 18, the bottom fixing of the initial rainwater discarding box 1 is provided with the sewage pipe 3, and the caliber of the sewage pipe 3 is small, so that rainwater with poor water quality collected in the initial rainwater storage space 15 can be slowly discharged.

The water storage device comprises a planting box 21 and a purified water reservoir 26, the height of the purified water reservoir 26 is 300mm, the planting box 21 and the water guide pipe 25 are both arranged in the waterproof concrete box 2, and the planting box 21 is fixedly connected to the top end of the purified water reservoir 26, the purified water reservoir 26 can store the purified water of the rainwater purification device, the planting box 21 is internally provided with a soil layer 9 and a planting layer 22, the thickness of the soil layer 9 is 1000mm, the thickness of the planting layer 22 is 100mm, the planting layer 22 is arranged on the top of the soil layer 9, a plurality of water-absorbing fiber rods 4 are fixedly connected inside the purified water reservoir 26, and the water absorption fiber rod 4 extends to the inside of the soil layer 9, and the water absorption fiber rod 4 can convey the water in the purified water reservoir 26 into the inside of the soil layer 9, so that the stored water can supply water for the trees in time.

The rainwater purification device comprises a plurality of separation nets 23, the separation nets 23 play a role in separating a pebble filling layer 7, a rainwater purification filling layer 8 and a clean water chamber 12, the separation nets 23 are arranged in an interlayer of a waterproof concrete box 2, a planting box 21 and a purified water reservoir 26, the waterproof concrete box 2, the planting box 21 and the purified water reservoir 26 are separated into the pebble filling layer 7, the rainwater purification filling layer 8 and the clean water chamber 12 by the separation nets 23, a sand filter layer 11 is arranged in the clean water chamber 12, the height of the clean water chamber 12 is 300mm, the pebble filling layer 7 is arranged at the top of the rainwater purification filling layer 8, the rainwater purification filling layer 8 is arranged at the top of the clean water chamber 12, fillers with certain water quality purification effect are selected from the rainwater purification filling layer 8, oyster shells are selected as main fillers, and are natural, abundant and cheap effective adsorbents, the main component is calcium carbonate (the content is 80-95%), the interior contains a large amount of microporous structures of 2-10pm, the oyster shell can be used as a slow release material with adsorption function after being crushed, activated and modified by holes, the number of pores of the oyster shell is increased by a modification means, the specific surface area of the oyster shell is increased, the adsorption capacity of the oyster shell on pollutants is increased, the surface structure of the oyster shell is more favorable for biological growth, the concentration of organic matters in water can be effectively reduced, the oyster shell has good water quality clarification effect, the raw materials are low in cost, high in developability, simple in technical operation and low in investment, the oyster shell is an ideal purification filling material, the secondary filling material is coconut shell-based activated carbon, the coconut shell-based activated carbon can effectively adsorb suspended matters in water, the water purification effect is achieved, the cost is low, the water permeable grille 6 is fixedly connected with the top of the interlayer of the waterproof concrete box 2 and the planting box 21, the water permeable grille 6 is arranged at the top of the pebble filling layer 7, the water-permeable grille 6 prevents fallen leaves or other foreign matters from falling into the pebble filling layer 7 on the premise of not influencing the rainwater to fall into the rainwater purification device.

A water outlet 17 is formed between the initial-stage flow discarding box 1 and the waterproof concrete box 2, the water outlet 17 is respectively communicated with the interior of the initial-stage flow discarding box 1 and the interior of the pebble filling layer 7, and the later-stage rainwater can conveniently flow into the interior of the pebble filling layer 7 through rainwater in the space 24 through the water outlet 17 and is purified by the rainwater purification device.

The bottom of the waterproof concrete box 2 is provided with a rainwater well 27, the other side of the waterproof concrete box 2 is fixedly connected with a drain pipe 10, the bottom end of the drain pipe 10 is fixedly connected with the top end of the rainwater well 27, the drain pipe 10 is respectively communicated with the rainwater purification packing layer 8 and the interior of the rainwater well 27, and the drain pipe 10 can drain redundant rainwater to the rainwater well 27 to prevent ponding when the rainwater purification device is not ready to purify due to rainstorm.

The two sides of the purified water reservoir 26 are fixedly connected with the water guide pipes 25, the water guide pipes 25 are respectively communicated with the inside of the purified water reservoir 26 and the inside of the clean water chamber 12, and the water guide pipes 25 are convenient for guiding the water purified by the rainwater purification device into the purified water reservoir 26 for storage.

The equal fixedly connected with curb 5 of flow box 1 front and back both sides and opposite side is abandoned in initial stage, and the curb then plays the effect that blocks and prevents that the pedestrian from trampling.

The working principle and the using process of the utility model are as follows:

firstly, the waterproof concrete box 2 is buried underground, at the moment, the outer wall of the initial stage drainage box 1 is vertically connected with the road, the rainwater port 13 is just at the level of the road surface, when a large amount of rainwater on the road surface enters the initial stage drainage box 1 through the rainwater port 13, at the moment, the baffle 18 is not closed because of the water in the initial stage rainwater storage space 15, the rainwater entering the initial stage drainage box 1 is firstly concentrated in the initial stage rainwater storage space 15, impurities in the rainwater are primarily blocked when the rainwater passes through the metal filter screen 14, as the rainwater in the initial stage rainwater storage space 15 increases, the buoyancy small ball 20 floats upwards under the buoyancy force, the baffle 18 is closed through the hard rod 19, the water in the initial stage rainwater storage space 15 is slowly discharged through the sewage pipe 3, and when the water in the initial stage rainwater storage space 15 is gradually discharged, the buoyancy force applied to the small buoyancy ball 20 is reduced, the baffle 18 can be opened again, rainwater directly enters the pebble filling layer 7 through the water outlet 17 after the baffle 18 is closed in the rainwater passing space 24 at the later stage, namely is purified by the rainwater purification device, rainwater directly falling on the water permeable grid 6 also enters the pebble filling layer 7 and is purified in sequence, oyster shells with certain water quality purification effect can be selected as main fillers in the rainwater purification filling layer 8, the secondary fillers are coconut shell based activated carbon, the filling thickness of the oyster shells and the activated carbon is 600mm, the ratio is 4:1, when the rainwater purification device purifies, rainwater directly falling and rainwater flowing in through the initial discarding device sequentially pass through the pebble filling layer 7, the rainwater purification filling layer 8 and the clean water chamber 12 and are purified and precipitated through the sand filter layer 11 in the purification water tank 12, and finally flow into the purified water reservoir 26 through the water guide pipe 25, the water in the purified water reservoir 26 can be conveyed to the inside of the soil layer 9 through the water absorption fiber rods 4 to provide moisture for plants in time, when heavy rain occurs, the excessive rainwater is directly guided into the rainwater well 27 through the drain pipe 10 to be discharged, meanwhile, the plurality of ecological tree pools can be connected in parallel, so that the optimal rainwater utilization effect is achieved, and the distance between every two ecological tree pools is preferably set between 8 m and 10 m.

Claims

1. An ecological tree pool with initial drainage and rainwater purification functions comprises a waterproof concrete box (2), and is characterized in that a rainwater purification device and a water storage device are arranged inside the waterproof concrete box (2), and an initial drainage device is arranged on one side of the waterproof concrete box (2);

the initial stage flow discarding device comprises an initial stage flow discarding box (1), the initial stage flow discarding box (1) is fixedly connected to one side of a waterproof concrete box (2), a partition plate (16) is fixedly arranged inside the initial stage flow discarding box (1), the partition plate (16) divides the interior of the initial stage flow discarding box (1) into an initial stage rainwater storage space (15) and a later stage rainwater passing space (24), the later stage rainwater passing space (24) is arranged at the top of the initial stage rainwater storage space (15), a rainwater inlet (13) is arranged on one side of the initial stage flow discarding box (1), the rainwater inlet (13) is arranged on one side of the later stage rainwater passing space (24), a baffle (18) is movably connected to the partition plate (16) through a rotating shaft, the bottom end of the baffle (18) is movably connected to a hard rod (19) through a movable hinge seat, and a buoyancy small ball (20) is fixedly connected to the bottom end of the hard rod (19), later stage rainwater passes through inside fixedly connected with metal screen (14) in space (24), establish between inlet for stom water (13) and baffle (18) metal screen (14), the initial stage is abandoned flow box (1) bottom mounting and is equipped with sewage pipe (3).

2. The ecological tree pool with the functions of initial abandoning and rainwater purification as claimed in claim 1, wherein the water storage device comprises a planting box (21) and a purified water reservoir (26), the planting box (21) and a water conduit (25) are both arranged inside the waterproof concrete box (2), the planting box (21) is fixedly connected to the top end of the purified water reservoir (26), a soil layer (9) and a planting layer (22) are arranged inside the planting box (21), the planting layer (22) is arranged on the top of the soil layer (9), a plurality of water-absorbing fiber rods (4) are fixedly connected inside the purified water reservoir (26), and the water-absorbing fiber rods (4) extend to the inside of the soil layer (9).

3. The ecological tree pool with the initial abandoning and rainwater purifying functions as claimed in claim 2, wherein the rainwater purifying device comprises a plurality of separation nets (23), the separation nets (23) are arranged in the interlayers of the waterproof concrete tank (2), the planting tank (21) and the purified water reservoir (26), the separation nets (23) separate the interlayers of the waterproof concrete tank (2), the planting tank (21) and the purified water reservoir (26) into a pebble filling layer (7), a rainwater purifying packing layer (8) and a clean water chamber (12), a sand filter layer (11) is arranged in the clean water chamber (12), the pebble filling layer (7) is arranged at the top of the rainwater purifying packing layer (8), the rainwater purifying packing layer (8) is arranged at the top of the clean water chamber (12), and a water permeable grid (6) is fixedly connected at the top of the interlayer of the waterproof concrete tank (2) and the planting tank (21), the water permeable grating (6) is arranged on the top of the pebble filling layer (7).

4. The ecological tree pool with the initial discarding function and the rainwater purifying function as claimed in claim 3, wherein a water outlet (17) is opened between the initial discarding box (1) and the waterproof concrete box (2), and the water outlet (17) is respectively communicated with the interior of the initial discarding box (1) and the interior of the pebble filling layer (7).

5. The ecological tree pool with initial abandoning flow and rainwater purification functions as claimed in claim 3, wherein a rainwater well (27) is arranged at the bottom of the waterproof concrete box (2), a drain pipe (10) is fixedly connected to the other side of the waterproof concrete box (2), the bottom end of the drain pipe (10) is fixedly connected to the top end of the rainwater well (27), and the drain pipe (10) is respectively communicated with the rainwater purification packing layer (8) and the interior of the rainwater well (27).

6. The ecological tree pool with both initial abandoning and rainwater purification functions as claimed in claim 3, wherein both sides of the purified water reservoir (26) are fixedly connected with water conduits (25), and the water conduits (25) are respectively communicated with the interior of the purified water reservoir (26) and the interior of the clean water chamber (12).

7. The ecological tree pool with initial drainage and rainwater purification functions as claimed in claim 1, wherein curbs (5) are fixedly connected to the front side, the rear side and the other side of the initial drainage box (1).