CN111305347B - Municipal works distribution of rain and sewage system - Google Patents
Municipal works distribution of rain and sewage system Download PDFInfo
- Publication number
- CN111305347B CN111305347B CN202010132609.XA CN202010132609A CN111305347B CN 111305347 B CN111305347 B CN 111305347B CN 202010132609 A CN202010132609 A CN 202010132609A CN 111305347 B CN111305347 B CN 111305347B
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- sewage
- cavity
- rain
- rainwater
- drain pipe
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- 239000010865 sewage Substances 0.000 title claims abstract description 169
- 238000005192 partition Methods 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 230000006835 compression Effects 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 12
- 238000000926 separation method Methods 0.000 abstract description 4
- 238000001556 precipitation Methods 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/03—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
- B01D29/035—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting with curved filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/001—Runoff or storm water
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Sewage (AREA)
Abstract
The invention relates to a municipal engineering rain and sewage diversion system which comprises a rain and sewage diversion device and a drain pipe communicated with the rain and sewage diversion device, wherein the drain pipe comprises a rain drain pipe and a sewage drain pipe, the rain and sewage diversion device comprises a rain cavity and a sewage cavity which are adjacent, a partition plate is arranged between the rain cavity and the sewage cavity, the rain and sewage diversion device comprises a water guide groove, a filter plate communicated with the rain cavity is arranged on the water guide groove, the rain cavity is communicated with the rain drain pipe, the sewage cavity is communicated with the sewage drain pipe, and the sewage cavity is communicated with a sewage inlet pipe. The rainwater and domestic sewage separation device has the effects that rainwater and domestic sewage are separated through the rainwater and sewage separation device, the rainwater is collected through the water guide groove and flows into the rainwater cavity from the filter plate, the domestic sewage enters the sewage cavity through the sewage inlet pipe, the collected rainwater is discharged through the rainwater drain pipe, the collected sewage is discharged through the sewage drain pipe, and rainwater and sewage are conveniently separated.
Description
Technical Field
The invention relates to the technical field of urban drainage, in particular to a municipal engineering rain and sewage diversion system.
Background
At present, domestic sewage is mainly derived from wastewater generated in daily life and diet living of people, and is discharged through an underground water pipe or a sewage discharge pipe.
In the existing rainwater drainage design, in order to quickly drain rainwater, a rainwater drainage pipeline is often provided with more open type designed channels, so that rainwater can be quickly collected when the precipitation is large, but in rainy seasons, when domestic sewage is drained into the rainwater drainage pipeline, the drainage pressure of the rainwater pipeline is increased, and the sewage is overflowed; and when the precipitation is less, because can detain partial domestic sewage in the rainwater drainage pipe, can produce comparatively sharp peculiar smell after the domestic sewage detention time is longer, influence people's daily life.
Therefore, the existing rainwater drainage pipeline needs further improvement.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a municipal engineering rain and sewage diversion system for diverting domestic sewage and rainwater.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a municipal works distribution of rain and sewage system, includes distribution of rain and sewage device and with the drain pipe of distribution of rain and sewage device intercommunication, the drain pipe includes rainwater drain pipe and sewage drain pipe, distribution of rain and sewage device includes adjacent rainwater chamber and sewage chamber, be equipped with the division board between rainwater chamber and the sewage chamber, distribution of rain and sewage device includes the guiding gutter, be equipped with the filter with rainwater chamber intercommunication on the guiding gutter, rainwater chamber intercommunication rainwater drain pipe, sewage chamber intercommunication sewage drain pipe, sewage chamber intercommunication has the sewage inlet tube.
Through adopting above-mentioned technical scheme, make rainwater and domestic sewage pass through the separation of dirty separator of rain, the rainwater passes through the guiding gutter and collects from the filter inflow rainwater intracavity, and domestic sewage passes through sewage inlet tube and gets into the sewage intracavity, and the rainwater after the collection passes through rainwater drain pipe and discharges, and the sewage of collection passes through sewage drain pipe and discharges, and the distribution of rain and sewage is comparatively convenient.
The present invention in a preferred example may be further configured to: the cross section of the water chute is arc-shaped, and one end of the arc-shaped bulge faces the partition plate.
Through adopting above-mentioned technical scheme, it is comparatively convenient to make the rainwater converge, and when the precipitation is great, can save partial rainwater in the guiding gutter, alleviates the pressure of catchmenting of rainwater chamber.
The present invention in a preferred example may be further configured to: rain and sewage diverging device still includes a pressure release structure, pressure release structure include with sewage intracavity wall fixed connection's elastic component, division board and elastic component fixed connection.
By adopting the technical scheme, when the rainfall of rainwater is large, more rainwater is collected in the rainwater cavity, the pressure received by the partition plate is large, the partition plate moves towards the sewage cavity, the space of the rainwater cavity is enlarged, more rainwater is collected, and rainwater is not easy to overflow; when the precipitation of rainwater is small, the partition plate is reset; meanwhile, as the correlation degree between the generation of the domestic sewage and the work and rest rule of people is larger, in the process of water consumption peak period, more sewage is in the sewage cavity, the extrusion division plate moves towards the direction of the rainwater cavity, the space in the sewage cavity is increased, the pressure of the sewage in the sewage pipe is reduced, and the sewage is not easy to overflow; after the space in the rainwater cavity or the rainwater cavity is blocked, along with the movement of the partition plate, the stress of a blocking object in the rainwater cavity or the sewage cavity is changed, so that the rainwater cavity or the sewage cavity is not easily blocked.
The present invention in a preferred example may be further configured to: the inner wall both sides in rainwater chamber are equipped with a mutual parallel arrangement respectively and are located the baffle of same horizontal plane, the division board is contradicted with the baffle, the inner wall both sides in sewage chamber are equipped with a mutual parallel arrangement respectively and are located the backup pad of same horizontal plane, the elastic component is located the backup pad.
Through adopting above-mentioned technical scheme, carry on spacingly to one side that the partition plate was towards rainwater chamber direction through the baffle, carry on spacingly to one side that the partition plate was towards sewage chamber direction through the backup pad.
The present invention in a preferred example may be further configured to: and communicating grooves are formed in two sides of the inner wall of the sewage cavity, and the communicating grooves enable the sewage cavity to be communicated with the rainwater cavity after the partition plate is pressed.
Through adopting above-mentioned technical scheme, because life sewage detention time can produce comparatively sharp peculiar smell in the pipeline after a long time, the setting of the intercommunication groove of sewage intracavity, make in the daily use, sewage chamber and rainwater chamber are difficult for the intercommunication, the peculiar smell is difficult for revealing through the rainwater chamber, when precipitation is great, when rainwater chamber and rainwater drain pipe's drainage ability had not digested this precipitation completely, in order to prevent that the rainwater from spilling over or being detained on the road surface, the division board atress moves towards the sewage chamber, after the inner space in rainwater chamber enlarges, intercommunication groove and rainwater chamber intercommunication, rainwater chamber and sewage chamber intercommunication, the partial rainwater flow direction sewage intracavity of rainwater intracavity, carry out the pressure release in rainwater chamber, a large amount of rainwater also restricts the peculiar smell in the sewage intracavity simultaneously, be difficult for revealing, rainwater drain pipe and sewage drain pipe's availability factor is higher.
The present invention in a preferred example may be further configured to: the supporting plate is provided with a plurality of communicating holes, the elastic piece is a compression spring, a supporting rod penetrates through the middle of the compression spring, and a floating ball is connected to one end, which penetrates through the communicating holes and faces away from the compression spring, of the supporting rod.
Through adopting above-mentioned technical scheme, when making the sewage water level of sewage intracavity higher, drive the floater and upwards float, the bracing piece promotes the division board along the direction motion that deviates from the sewage chamber, and the inner space in increase sewage chamber alleviates domestic sewage when more, the pressure of catchmenting in sewage chamber.
The present invention in a preferred example may be further configured to: the sewage intracavity is equipped with the striker plate of being connected with backup pad and sewage chamber bottom, striker plate and backup pad and sewage intracavity wall constitute a cavity of placing the floater, the striker plate is for being equipped with gapped grid network.
Through adopting above-mentioned technical scheme, make the floater be difficult for blockking the solid-state rubbish in the sewage intracavity, the difficult danger that takes place to block in the sewage intracavity.
The present invention in a preferred example may be further configured to: the rainwater and sewage separating device comprises a separating main body, the sewage cavity and the rainwater cavity are arranged in the separating main body, a cover plate is arranged on the rainwater and sewage separating device, the water guide groove is arranged on the cover plate, and the cover plate is buckled on the separating main body.
Through adopting above-mentioned technical scheme, make apron lock on reposition of redundant personnel main part, block when comparatively serious in sewage chamber or rainwater intracavity, the staff can manually unpack apart the apron and maintain sewage chamber or rainwater chamber, easy maintenance.
In conclusion, the invention has the following beneficial effects:
1. make rainwater and domestic sewage pass through the separation of dirty separator of rain, the rainwater passes through the guiding gutter and collects from the filter inflow rainwater intracavity, and domestic sewage passes through the sewage inlet tube and gets into the sewage intracavity, and the rainwater after collecting passes through rainwater drain pipe and discharges, and the sewage of collecting passes through sewage drain pipe and discharges, and the distribution of rain and sewage is comparatively convenient.
2. When the rainfall of the rainwater is large, more rainwater is collected in the rainwater cavity, the pressure received by the partition plate is large, the partition plate moves towards the sewage cavity, the space of the rainwater cavity is enlarged, more rainwater is collected, and the rainwater is not easy to overflow; when the precipitation of rainwater is small, the partition plate is reset; meanwhile, as the correlation degree between the generation of the domestic sewage and the work and rest rule of people is larger, in the process of water consumption peak period, more sewage is in the sewage cavity, the extrusion division plate moves towards the direction of the rainwater cavity, the space in the sewage cavity is increased, the pressure of the sewage in the sewage pipe is reduced, and the sewage is not easy to overflow; after the space in the rainwater cavity or the rainwater cavity is blocked, along with the movement of the partition plate, the stress of a blocking object in the rainwater cavity or the sewage cavity is changed, so that the rainwater cavity or the sewage cavity is not easily blocked.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
FIG. 2 is a schematic cross-sectional view of the present embodiment, illustrating the internal structure of the sewage chamber and the rain chamber of the present embodiment;
fig. 3 is a schematic view of the internal structure of the present example.
Reference numerals: 1. a rainwater drain pipe; 2. a sewage drain pipe; 3. a rainwater chamber; 4. a sewage chamber; 5. a partition plate; 6. a water chute; 7. a filter plate; 8. a sewage inlet pipe; 9. an elastic member; 10. a baffle plate; 11. a support plate; 12. a communicating groove; 13. a communicating hole; 14. a support bar; 15. a floating ball; 16. a striker plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the municipal engineering rain and sewage diversion system disclosed by the invention comprises a rainwater diversion device and a drain pipe communicated with the rainwater diversion device, wherein the rainwater diversion device comprises a diversion main body, and a cover plate is arranged on the diversion main body in a covering manner.
As can be seen from fig. 2 and 3, the splitter plate 5 is arranged in the splitting main body, the splitting main body is divided into the rainwater cavity 3 and the sewage cavity 4 by the splitter plate 5, and the splitting main body is a long-strip cube and is sequentially provided with the cover plate, the rainwater cavity 3, the splitter plate 5 and the sewage cavity 4 from top to bottom.
The cross section of the cover plate is arc-shaped and is sunken along the central line of the length direction of the shunt main body to form a water chute 6, the cross section of the water chute 6 is arc-shaped, one end of the arc-shaped bulge faces the partition plate 5, a plurality of filter plates 7 which are covered on the cover plate are arranged on the cover plate at intervals, and rainwater enters the rainwater cavity 3 below the cover plate through the filter plates 7.
As shown in fig. 1, the drain pipe includes a rainwater drain pipe 1 and a sewage drain pipe 2, one end of the rainwater chamber 3 is connected with the rainwater drain pipe 1, one end of the sewage chamber 4 is connected with the sewage drain pipe 2, and the other end is connected with a sewage inlet pipe 8.
It can be known from combination of fig. 2 and fig. 3, still be equipped with a pressure relief structure in the reposition of redundant personnel main part, pressure relief structure includes elastic component 9 with 4 inner wall fixed connection in sewage chamber, elastic component 9 is compression spring in this embodiment, the inner wall both sides of rainwater chamber 3 are equipped with a mutual parallel arrangement respectively and are located the baffle 10 of same horizontal plane, the inner wall both sides of sewage chamber 4 are equipped with a mutual parallel arrangement respectively and are located the backup pad 11 of same horizontal plane, elastic component 9 is compression spring and is located backup pad 11 and compression spring's both ends respectively with division board 5 and backup pad 11 fixed connection in this embodiment, division board 5 is located between backup pad 11 and the baffle 10.
A plurality of communicating grooves 12 are formed in the inner wall of the sewage cavity 4, after the division plate 5 is pressed, the communicating grooves 12 enable the sewage cavity 4 to be communicated with the rainwater cavity 3, a plurality of communicating holes 13 corresponding to the compression springs are formed in the supporting plate 11, a plurality of supporting rods 14 penetrate through the compression springs, and floating balls 15 are fixed at the positions, back to the compression springs, of the supporting rods 14 after the communicating holes 13 are penetrated.
As can be known from the combination of the graph 2 and the graph 3, the baffle plate 16 connected with the support plate 11 and the bottom of the sewage cavity 4 is arranged in the sewage cavity 4, the baffle plate 16 is a grid net with gaps, the baffle plate 16, the support plate 11 and the inner wall of the sewage cavity 4 form a cavity for placing the floating ball 15, the floating ball 15 is located in the cavity, and a movable gap is reserved between the floating ball 15 and the support plate 11.
The implementation principle of the embodiment is as follows:
when rainfall begins, rainwater flows into the rainwater cavity 3 from the filter plate 7 through the collection of the water guide groove 6 and is discharged through the rainwater drainage pipe 1, when the rainfall is large, the rainwater in the rainwater cavity 3 is accumulated more, the partition plate 5 is stressed to move towards the sewage cavity 4, the inner space of the rainwater cavity 3 is enlarged, the water storage capacity is increased, after the rainfall continues to increase, the partition plate 5 is stressed to further move towards the sewage cavity 4, the communicating groove 12 is communicated with the rainwater cavity 3, the rainwater cavity 3 is communicated with the sewage cavity 4, part of rainwater in the rainwater cavity 3 flows into the sewage cavity 4, the rainwater cavity 3 is decompressed, and the utilization rate of the sewage cavity 4 is improved; when the sewage is in the process of the water consumption peak period, the water level of the sewage in the sewage cavity 4 is higher, the floating ball 15 is driven to float upwards, the support rod 14 pushes the partition plate 5 to move along the direction departing from the sewage cavity 4, the internal space of the sewage cavity 4 is increased, and after the space in the sewage cavity 4 is increased, the pressure of the sewage in the sewage pipe is reduced, so that the sewage is not easy to overflow; after the space in the rainwater cavity 3 or the sewage cavity 4 is blocked, along with the movement of the partition plate 5, the stress of a blocking object in the rainwater cavity 3 or the sewage cavity 4 is changed, so that the rainwater cavity 3 or the sewage cavity 4 is not easily blocked.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (4)
1. The utility model provides a municipal works distribution of rain and sewage system which characterized in that: comprises a rain and sewage diversion device and a drain pipe communicated with the rain and sewage diversion device, wherein the drain pipe comprises a rain drain pipe (1) and a sewage drain pipe (2), the rain and sewage diversion device comprises a rain cavity (3) and a sewage cavity (4) which are adjacent, a partition plate (5) is arranged between the rain cavity (3) and the sewage cavity (4), the rain and sewage diversion device comprises a water guide groove (6), a filter plate (7) communicated with the rain cavity (3) is arranged on the water guide groove (6), the rain cavity (3) is communicated with the rain drain pipe (1), the sewage cavity (4) is communicated with the sewage drain pipe (2), the sewage cavity (4) is communicated with a sewage inlet pipe (8), the rain and sewage diversion device further comprises a pressure relief structure, the pressure relief structure comprises an elastic piece (9) fixedly connected with the inner wall of the sewage cavity (4), and the partition plate (5) is fixedly connected with the elastic piece (9), two sides of the inner wall of the rainwater cavity (3) are respectively provided with a baffle (10) which are arranged in parallel and are positioned on the same horizontal plane, the partition plate (5) is abutted against the baffle plate (10), two sides of the inner wall of the sewage cavity (4) are respectively provided with a supporting plate (11) which are arranged in parallel and positioned on the same horizontal plane, the elastic piece (9) is positioned on the support plate (11), the two sides of the inner wall of the sewage cavity (4) are provided with communicating grooves (12), after the division plate (5) is pressed, the communicating groove (12) enables the sewage cavity (4) to be communicated with the rainwater cavity (3), a plurality of communicating holes (13) are arranged on the supporting plate (11), the elastic piece (9) is a compression spring, a support rod (14) penetrates through the middle of the compression spring, the support rod (14) penetrates through the communicating hole (13), and a floating ball (15) is connected to one end, back to the compression spring, of the support rod (14).
2. The municipal engineering rain and sewage diversion system of claim 1, wherein: the cross section of the water chute (6) is arc-shaped, and one end of the arc-shaped bulge faces the partition plate (5).
3. The municipal engineering rain and sewage diversion system of claim 1, wherein: be equipped with striker plate (16) of being connected bottom backup pad (11) and sewage chamber (4) in sewage chamber (4), striker plate (16) and backup pad (11) and sewage chamber (4) inner wall constitute a cavity of placing floater (15), striker plate (16) are for being equipped with gapped grid net.
4. The municipal engineering rain and sewage diversion system of claim 1, wherein: the rainwater and sewage separating device comprises a separating main body, a sewage cavity (4) and a rainwater cavity (3) are arranged in the separating main body, a cover plate is arranged on the rainwater and sewage separating device, a water guide groove (6) is arranged on the cover plate, and the cover plate is buckled on the separating main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010132609.XA CN111305347B (en) | 2020-02-29 | 2020-02-29 | Municipal works distribution of rain and sewage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010132609.XA CN111305347B (en) | 2020-02-29 | 2020-02-29 | Municipal works distribution of rain and sewage system |
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| Publication Number | Publication Date |
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| CN111305347A CN111305347A (en) | 2020-06-19 |
| CN111305347B true CN111305347B (en) | 2020-12-22 |
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| CN202010132609.XA Active CN111305347B (en) | 2020-02-29 | 2020-02-29 | Municipal works distribution of rain and sewage system |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982633B (en) * | 2021-03-02 | 2022-08-09 | 惠州城际工程咨询有限公司 | Municipal works distribution of rain and sewage system |
| CN113653153B (en) * | 2021-08-17 | 2023-07-04 | 广州市市政工程机械施工有限公司 | Municipal works rain sewage distribution system |
| CN117646486B (en) * | 2023-10-19 | 2024-07-02 | 廊坊市园林绿化事务中心 | Hierarchical processing rainwater purification device is used in gardens |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201459901U (en) * | 2009-07-27 | 2010-05-12 | 重庆大学 | Collinear bypass type double-layer drainage pipe duct |
| CN104532940B (en) * | 2014-12-30 | 2016-04-27 | 沈晓铃 | Double-layer drainage pipe duct |
| FR3076844B1 (en) * | 2018-01-17 | 2021-11-19 | Bernard Sikora | Installation for the collection and evacuation of runoff in urban areas including an inlet and an effluent collection tank |
| CN209210426U (en) * | 2018-12-03 | 2019-08-06 | 钟卉卉 | A kind of part flow arrangement for sewage treatment |
| CN109797830B (en) * | 2019-03-28 | 2024-05-28 | 西北农林科技大学 | Rain and sewage diversion device |
| CN110230347A (en) * | 2019-07-15 | 2019-09-13 | 江苏华蕊海绵城市建设有限公司 | A kind of rain sewage diversion device |
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