CN212403864U - Rainwater step ecological buffering and purifying system - Google Patents
Rainwater step ecological buffering and purifying system Download PDFInfo
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- CN212403864U CN212403864U CN202020897825.9U CN202020897825U CN212403864U CN 212403864 U CN212403864 U CN 212403864U CN 202020897825 U CN202020897825 U CN 202020897825U CN 212403864 U CN212403864 U CN 212403864U
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Abstract
The utility model discloses an ecological buffering clean system of rainwater step, be step-like arrangement ecological treatment unit (2) including rainwater collection unit (1) and two at least top-down in proper order, ecological treatment unit (2) are including box (21) that have storage tank (211) and arrange water distributor (22) in storage tank (211), the packing layer has been arranged from bottom to top in proper order in storage tank (211), soil horizon (26) and plant layer (27), the bottom of water distributor (22) extends to in the packing layer, the top that is located water distributor (22) of the top is linked together with the water outlet end of rainwater collection unit (1), in two adjacent ecological treatment unit (2), the top of water distributor (22) that is located the below extends to the upper portion that is located storage tank (211) in ecological treatment unit (2) of top. Compared with the prior art, the utility model discloses an ecological buffering clean system of rainwater step purification efficiency is high and effectual.
Description
Technical Field
The utility model relates to a water ecological management technical field specifically indicates a rainwater step ecological buffering clean system.
Background
Along with the acceleration of the urbanization process, the original natural ecological environment with good water permeability of the city is gradually replaced by waterproof hard pavement, so that the urban rainwater is wasted. Meanwhile, pollutants in air and the ground surface are dissolved in the rainwater in the falling and runoff processes, so that the initial rainwater is high in pollutant content, and the water quality of the water body is greatly reduced when the rainwater is directly discharged into the water body.
Patent application No. CN201710013049.4 (publication No. CN106759772A) patent invention "a system and method for preventing and treating initial rainwater runoff pollution" discloses a system for preventing and treating initial rainwater runoff pollution, which establishes a collecting pool by determining the position and volume of the collecting pool, and purifies rainwater in the collecting pool at predetermined time intervals. By setting the time interval between two initial rainwater fields, the effective collection of the initial rainwater is realized, and the load of the processing unit is reduced.
However, in the above scheme, in the mode of retreatment after initial rainwater collection, the uncertainty of rainwater easily causes instability of operation of treatment equipment, so that the treatment effect of the initial rainwater sometimes fails to reach the standard of drainage into a water body.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to prior art's current situation, provide a purification efficiency height and effectual rainwater step ecological buffering clean system.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides an ecological buffering clean system of rainwater step, is including rainwater collection unit and be used for purifying the ecological processing unit of rainwater, and the play water end of aforementioned rainwater collection unit is connected its characterized in that with the end of intaking of ecological processing unit: the ecological treatment unit's quantity is two at least, and top-down is the step form in proper order and arranges, ecological treatment unit including the box that has the storage tank and arrange the water distributor in the storage tank, packing layer, soil horizon and plant layer have been arranged from bottom to top in the storage tank in proper order, the bottom of water distributor extends to in the packing layer, be located in the ecological treatment unit of top the top of water distributor with the play water end of rainwater collection unit is linked together, adjacent two among the ecological treatment unit, be located in the ecological treatment unit of below the top of water distributor extend to the upper portion of storage tank in the ecological treatment unit that is located the top.
Preferably, the packing layer comprises a pebble layer, a gravel layer and a zeolite layer from bottom to top in sequence to realize layer-by-layer filtration.
Further, the particle size of pebbles in the pebble layer is 30-50 mm, and the thickness of the pebble layer is 50 mm; the particle size of gravels in the gravel layer is 10-30 mm, and the thickness of the gravel layer is 200 mm; the particle size of zeolite in the zeolite layer is 5-10 mm, and the thickness of the zeolite layer is 300 mm. The proper particle size and layer thickness can improve and ensure the integral purification effect of the packing layer.
Furthermore, the water distribution pipe comprises a vertical section and a horizontal section which are connected, and the horizontal section is laid between the pebble layer and the gravel layer, so that rainwater is fully contacted with the packing layer.
Furthermore, an aeration pipe is laid between the gravel layer and the zeolite layer, so that the ecological treatment unit forms a lower anoxic state and an upper aerobic state.
Preferably, the side wall of the box body is provided with a water outlet communicated with the containing groove, and the water outlet is communicated with the top end of the water distribution pipe in the ecological treatment unit positioned below.
Preferably, the distance between the water outlet and the top end of the box body is 10 cm.
Preferably, the rainwater collection unit comprises a water collection tank and a baffle arranged in the water collection tank, the baffle divides the water collection tank into a first cavity positioned above and a second cavity positioned below, the first cavity is communicated with the top end of the water distribution pipe in the uppermost ecological treatment unit through a first communication pipe, and the second cavity is communicated with an external water area through a second communication pipe, so that impact of large-flow rainwater on the ecological treatment unit is avoided while initial rainwater is purified.
Wherein, can set up the filter at the top of water catch bowl for intercept bulky material that rubbish, leaf etc. easily cause the pipeline to block up.
Furthermore, a liquid level meter used for monitoring the rainwater liquid level in the first cavity is arranged in the first cavity, the liquid level meter is communicated with an automatic control device, and the automatic control device can drive the baffle to move, so that the first cavity and the second cavity are separated or communicated, and the automation degree is improved.
Preferably, the thickness of the soil layer is 50 mm.
Compared with the prior art, the utility model has the advantages of: the rainwater collecting unit and at least two ecological processing units which are sequentially arranged in a step shape from top to bottom form a rainwater step ecological buffering and purifying system, and the ecological processing units arranged in the step shape realize an S-shaped purifying path through reasonable arrangement of the water distribution pipes, so that the retention time of water flow is prolonged, and the purifying efficiency and the purifying effect of rainwater are improved.
Drawings
Fig. 1 is a cross-sectional view of the embodiment of the rainwater step ecological buffering and purifying system of the utility model.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1, it is a preferred embodiment of the rainwater step ecological buffering and purifying system of the present invention. The rainwater step ecological buffering and purifying system comprises a rainwater collecting unit 1 for collecting rainwater and at least two ecological treatment units 2 which are sequentially arranged in a step shape from top to bottom and used for purifying rainwater, wherein the water outlet end of the rainwater collecting unit 1 is directly or indirectly connected with the water inlet end of the ecological treatment unit 2. In this embodiment, the number of the ecological treatment units 2 is three.
The rainwater collection unit 1 includes a water collection tank 11, a baffle 12, a first communicating pipe 13, a second communicating pipe 14 and a liquid level meter 15. Specifically, the baffle 12 is disposed in the water collection tank 11, and divides the water collection tank 11 into a first cavity 111 located above and a second cavity 112 located below, the first cavity 111 is communicated with the uppermost ecological treatment unit 2 through a first communication pipe 13, and the second cavity 112 is communicated with the outside water area through a second communication pipe 14; the liquid level meter 15 is arranged in the first cavity 111 and used for monitoring the rainwater liquid level in the first cavity 111, and the liquid level meter 15 is communicated with an automatic control device which can drive the baffle plate 12 to move so as to separate or communicate the first cavity 111 with the second cavity 112. In this embodiment, the first connection pipe 13 is connected to a lower portion of the first chamber 111, and the second connection pipe 14 is connected to a lower portion of the second chamber 112.
When the baffle 12 is in a closed state, the first cavity 111 and the second cavity 112 are separated, and the rainwater in the first cavity 111 flows into the uppermost ecological treatment unit 2 through the first communication pipe 13; when the baffle 12 is in the open state, the first chamber 111 and the second chamber 112 are communicated, and the rainwater in the second chamber 112 flows into the external water area through the second communicating pipe 14.
The installation position H0 of the liquid level meter is determined according to the catchment area, the rainfall data (without the sudden rainfall data) of the early stage rainwater in the catchment area, the volume of the first cavity 111 and the diameter of the first communication pipe 13. When the height of the rainwater entering the first inner cavity 111 does not exceed H0, the rainwater flows into the ecological treatment unit 2 positioned at the top through the first communication pipe 13; when the height of the rainwater entering the first inner cavity 111 exceeds H0, the liquid level meter 15 feeds back the data information to the automatic control device, the automatic control device starts, the baffle plate 12 is opened, and the rainwater flows into the second cavity 112 and then flows into the external water area through the second communicating pipe 14.
The ecological treatment unit 2 comprises a tank 21, a water distribution pipe 22 and an aeration pipe 28. Specifically, the box body 21 has a containing groove 211, a water outlet 212 communicated with the containing groove 211 is formed on the side wall of the box body 21, and the distance between the water outlet 212 and the top end of the box body 21 is 10 cm; the pebble layer 23, the gravel layer 24, the zeolite layer 25, the soil layer 26 and the plant layer 27 are sequentially arranged in the accommodating groove 211 from bottom to top, the particle size of pebbles in the pebble layer 23 is 30-50 mm, the thickness of the pebble layer 23 is 50mm, the particle size of gravels in the gravel layer 24 is 10-30 mm, the thickness of the gravel layer 24 is 200mm, the particle size of zeolites in the zeolite layer 25 is 5-10 mm, the thickness of the zeolite layer 25 is 300mm, the thickness of the soil layer 26 is 50mm, and amphibian plants are planted in the plant layer 27, so that the plants in the ecological treatment unit 2 are prevented from being dead due to the fact that the plants are located in water for a long time or are located in a dry environment for; the water distribution pipes 22 and the aeration pipes 28 are both arranged in the containing tank 211, the water distribution pipes 22 comprise vertical sections 221 and horizontal sections 222 which are connected, the top ends of the vertical sections 221 of the water distribution pipes 22 in the uppermost ecological treatment unit 2 are communicated with the first communication pipe 13, the top ends of the vertical sections 221 of the water distribution pipes 22 in the lower ecological treatment unit 2 are communicated with the water outlet 212 of the box body 21 in the upper ecological treatment unit 2 in two adjacent ecological treatment units 2, and the horizontal sections 222 are laid between the pebble layer 23 and the gravel layer 24; aeration tubes 28 are laid between the gravel layer 24 and the zeolite layer 25. In this embodiment, the aeration pipe 28 is powered by a solar panel 29, and the solar panel 29 and the plant layer 27 are arranged in a staggered manner.
The working principle of the utility model is as follows:
(1) when the height of the rainwater entering the first inner cavity 111 does not exceed H0, the rainwater flows into the water distribution pipes 22 in the uppermost ecological treatment unit 2 through the first communication pipe 13, then sequentially passes through the pebble layer 23, the gravel layer 24, the zeolite layer 25, the soil layer 26 and the plant layer 27 for purification, then enters the water distribution pipes 22 in the lower ecological treatment unit 2 through the water outlet 212 of the box body 21, is sequentially purified in the ecological treatment units 2 which are arranged in a step shape from top to bottom, and finally flows into the external water area, and the ecological treatment units 2 arranged in the step shape realize S-shaped purification paths, prolong the retention time of the water flow, and improve the purification efficiency and purification effect of the initial rainwater;
(2) when the height of the rainwater entering the first inner cavity 111 exceeds H0, the liquid level meter 15 feeds back the data information to the automatic control device, the automatic control device is started, the baffle plate 12 is opened, the rainwater flows into the second cavity 112 and then flows into the external water area through the second communicating pipe 14, and the impact of the large-flow rainwater on the ecological treatment unit 2 is prevented.
Claims (10)
1. The utility model provides an ecological buffering clean system of rainwater step, is including rainwater collection unit (1) and be used for purifying ecological processing unit (2) of rainwater, and the play water end of aforementioned rainwater collection unit (1) is connected its characterized in that with the end of intaking of ecological processing unit (2): the ecological treatment unit (2) is at least two in quantity, and is arranged in a step-like manner from top to bottom in proper order, the ecological treatment unit (2) including box (21) that have storage tank (211) and water distribution pipe (22) of arranging in storage tank (211), packing layer, soil horizon (26) and plant layer (27) have been arranged from bottom to top in storage tank (211) in proper order, the bottom of water distribution pipe (22) extends to in the packing layer, the top of water distribution pipe (22) in the ecological treatment unit (2) that is located the top with the water outlet end of rainwater collection unit (1) is linked together, adjacent two in ecological treatment unit (2), the top of water distribution pipe (22) in the ecological treatment unit (2) that is located the below extends to the upper portion of storage tank (211) in the ecological treatment unit (2) that is located the top.
2. The rainwater step ecological buffering purification system of claim 1, characterized in that: the packing layer comprises a pebble layer (23), a gravel layer (24) and a zeolite layer (25) from bottom to top in sequence.
3. The rainwater step ecological buffering purification system of claim 2, characterized in that: the particle size of pebbles in the pebble layer (23) is 30-50 mm, and the thickness of the pebble layer (23) is 50 mm; the particle size of gravel in the gravel layer (24) is 10-30 mm, and the thickness of the gravel layer (24) is 200 mm; the particle size of zeolite in the zeolite layer (25) is 5-10 mm, and the thickness of the zeolite layer (25) is 300 mm.
4. The rainwater step ecological buffering purification system of claim 2, characterized in that: the water distribution pipe (22) comprises a vertical section (221) and a horizontal section (222) which are connected, and the horizontal section (222) is paved between the pebble layer (23) and the gravel layer (24).
5. The rainwater step ecological buffering purification system of claim 2, characterized in that: an aeration pipe (28) is laid between the gravel layer (24) and the zeolite layer (25).
6. The rainwater step ecological buffering purification system of claim 1, characterized in that: the side wall of the box body (21) is provided with a water outlet (212) communicated with the containing groove (211), and the water outlet (212) is communicated with the top end of the water distribution pipe (22) in the ecological treatment unit (2) positioned below.
7. The rainwater step ecological buffering purification system of claim 6, characterized in that: the distance between the water outlet (212) and the top end of the box body (21) is 10 cm.
8. A stormwater step ecological buffering and purification system as claimed in any one of claims 1 to 7, wherein: rainwater collection unit (1) including water catch bowl (11) and locate baffle (12) in water catch bowl (11), baffle (12) separate water catch bowl (11) for first cavity (111) that are located the top and second cavity (112) that are located the below, first cavity (111) are linked together through first communicating pipe (13) and the top that is located water distribution pipe (22) in the ecological processing unit (2) of the top, second cavity (112) are linked together through second communicating pipe (14) and external waters.
9. The rainwater step ecological buffering purification system of claim 8, characterized in that: a liquid level meter (15) used for monitoring the rainwater liquid level in the first cavity (111) is arranged in the first cavity (111), the liquid level meter (15) is communicated with an automatic control device, and the automatic control device can drive the baffle (12) to move so as to enable the first cavity (111) and the second cavity (112) to be separated or communicated.
10. A stormwater step ecological buffering and purification system as claimed in any one of claims 1 to 7, wherein: the thickness of the soil layer (26) is 50 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020897825.9U CN212403864U (en) | 2020-05-25 | 2020-05-25 | Rainwater step ecological buffering and purifying system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020897825.9U CN212403864U (en) | 2020-05-25 | 2020-05-25 | Rainwater step ecological buffering and purifying system |
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| CN212403864U true CN212403864U (en) | 2021-01-26 |
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| CN202020897825.9U Active CN212403864U (en) | 2020-05-25 | 2020-05-25 | Rainwater step ecological buffering and purifying system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113201992A (en) * | 2021-05-10 | 2021-08-03 | 河南城建学院 | Stepped biological detention device for highway pavement runoff |
| CN114991069A (en) * | 2022-06-16 | 2022-09-02 | 中持水务股份有限公司 | Water purification system in river channel |
-
2020
- 2020-05-25 CN CN202020897825.9U patent/CN212403864U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113201992A (en) * | 2021-05-10 | 2021-08-03 | 河南城建学院 | Stepped biological detention device for highway pavement runoff |
| CN114991069A (en) * | 2022-06-16 | 2022-09-02 | 中持水务股份有限公司 | Water purification system in river channel |
| CN114991069B (en) * | 2022-06-16 | 2024-02-09 | 中持水务股份有限公司 | River channel internal water body purifying system |
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