CN104631547A - Rainwater collecting system - Google Patents
Rainwater collecting system Download PDFInfo
- Publication number
- CN104631547A CN104631547A CN201510075589.6A CN201510075589A CN104631547A CN 104631547 A CN104631547 A CN 104631547A CN 201510075589 A CN201510075589 A CN 201510075589A CN 104631547 A CN104631547 A CN 104631547A
- Authority
- CN
- China
- Prior art keywords
- rainwater
- collecting system
- pipe
- water collecting
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/02—Methods or installations for obtaining or collecting drinking water or tap water from rain-water
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/22—Adaptations of pumping plants for lifting sewage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Sewage (AREA)
Abstract
The invention discloses a rainwater collecting system which comprises a rainwater storage and treatment structure, an anti-eddy siphon rainwater hopper, a safety distributing well, a sewage intercepting hanging basket device, a flow discarding filter plant, an automatic filter plant and a buried integrated machine. The anti-eddy siphon rainwater hopper is mounted at an inlet pipe of the safety distributing well; an outlet pipe of the safety distributing well is connected with an inlet pipe of the sewage intercepting hanging basket device; an outlet pipe of the sewage intercepting hanging basket device is connected with an inlet pipe of the flow discarding filter plant; an outlet pipe of the flow discarding filter plant is connected with an inlet pipe of the automatic filter plant; an outlet pipe of the automatic filter plant is connected with an inlet of the rainwater storage and treatment structure; a water suction pump is arranged at an outlet of the rainwater storage and treatment structure and is connected with the buried integrated machine by a pipeline. Rainwater storage and rainwater treatment are integrated with each other, and accordingly the rainwater collecting system is convenient to mount and high in bearing capacity and has the advantages of low pollution and maintenance and easiness in recycling.
Description
Technical field
The present invention relates to rainwater storage treating apparatus, particularly relate to a kind of rain water collecting system.
Background technology
The mode capabilities that tradition rainwater storage treatment system adopts is more single, and rainwater collection pool is only used to collect rainwater, and treatment facility will be arranged separately, and its equipment is many and complicated, and equipment is more accurate, and fault rate is higher, and maintenance cost is larger; And rainwater overstand in rainwater collection pool, be easy to grow the impurity such as algae, be not easy cleaning, its cost, maintenance cost are all higher.
For whole rain water collecting system, topmost air of will avoiding exactly enters whole system by roof drain.If air directly enters roof drain, air mass can be formed in pipeline, can greatly reduce systematic collection efficiency like this.
Summary of the invention
The object of the invention is to solve the problems of the prior art, a kind of rain water collecting system is provided.
Technical scheme of the present invention is: a kind of rain water collecting system, comprises rainwater storage process structure, anti-eddy current siphon rainwater head, safe shunting well, Prefabricated combined septic tank device, abandoned stream filter, automatic filtering unit and buried all-in-one; Described anti-eddy current siphon rainwater head is installed on safe shunting well inlet pipes; The outlet of described safe shunting well connects with the inlet tube of described Prefabricated combined septic tank device; The outlet of described Prefabricated combined septic tank device connects with the inlet tube of described abandoned stream filter; The outlet of described abandoned stream filter connects in the inlet tube of described automatic filtering unit; The outlet of described automatic filtering unit connects with the import of described rainwater storage process structure; The outlet of described rainwater storage process structure is provided with suction pump, and described suction pump is connected by pipeline with described buried all-in-one.
Preferably, described rainwater storage process structure comprise inlet well, wet well and reservoir skeleton, and described inlet well, wet well and reservoir skeleton are into a single integrated structure by its outside coated topping; Described suction pump is placed in this wet well.
Preferably, composite impermeable membrane, sand cushion, concrete floor and concrete cushion is provided with successively from top to bottom in the below of described reservoir skeleton.
Preferably, above described reservoir skeleton, composite impermeable membrane and sand permeable formation is provided with from the bottom to top successively.
Preferably, described Prefabricated combined septic tank device, abandoned stream filter and automatic filtering unit be all located in inspection-pit; The top of described rainwater storage process structure is provided with two with its import with export the inspection-pit communicated.
Preferably, the described safe shunting well bleed off pipe that comprises rainwater gathering tube and connect with it; Described anti-eddy current siphon rainwater head is arranged on the water inlet of described rainwater gathering tube.
Preferably, described anti-eddy current type siphon rainwater head comprises roof drain chassis, is located at the roof drain chassis tail pipe of lower end, described roof drain chassis and is placed in the kuppe at top, described roof drain chassis; Also comprise exhaust grille, mounting bracket and filtering grid; Described exhaust grille is located at the top of described kuppe; Described mounting bracket is located at the top of roof drain chassis water inlet pipe mouth, and it is inner that described filtering grid is placed in described mounting bracket; The lower blade that described exhaust grille comprises disk body, is located at the blade at disk body top and is located at bottom described disk body; Described filtering grid comprises filter and to be located at below filter integrated lower filter with it.
Preferably, described buried all-in-one is embedded in underground, and its intake pipe connects with described suction pump.
Preferably, described buried all-in-one is provided with pressure release return pipe, blow-off pipe and reuse pipe; Described pressure release return pipe communicates with the outlet of rainwater storage process structure; Described blow-off pipe connects with blow-off line; The external use pipeline of described reuse pipe.
Preferably, the outlet of described rainwater storage process structure connects with tap water moisturizing pipeline.
The present invention has following beneficial effect:
1, preprocessing process
A, Prefabricated combined septic tank effectively can tackle larger rubbish and the precipitation grains of sand, and cleaning is convenient, opens access cover and is toppled over by basket, simultaneously extremely important to the equipment protection of rear end;
B, rain water drainage process: with me and take charge of patent rain water drainage filter, utilize the flow by gravity of rainwater and pressure effectively to emit with serious pollution rainwater in early stage, carry out preliminary filtration simultaneously to the rainwater that the later stage collects;
C, clean rainwater are by after automatic filtering unit process, and the particle that particle diameter is less is removed, and the rainwater after pretreated flows into rain water reservoir;
2, Systematical control; Adopt storm-water system controller to control, controller adopts chip program to control, and is furnished with display screen, can accomplishes the monitoring to each retaining liquid level, the work of water pump, the control of cleaning equipment, monitor the situations such as water supply, draining, moisturizing simultaneously.
3, effluent quality meets national standard completely;
4, the anti-eddy current siphon rainwater head by adding carries out quick collection to rainwater;
5, the anti-eddy current siphon rainwater head in the present invention has the function such as gas-water separation, anti-eddy current; Form siphon full packages pressure current in it, steady flow is good, overall performance is superior;
6, the exhaust grille in the present invention is in rainfall, rainwater enters roof drain by blade, lower blade, blocks air enters from the external world and eliminates turbulent state simultaneously by the anti-vortex device in roof drain, makes rainwater flood earial drainage reposefully and enters safe shunting well.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of anti-eddy current siphon rainwater head in the present invention;
Fig. 3 is the exploded view of anti-eddy current siphon rainwater head in the present invention.
Detailed description of the invention
The technological means realized to make the present invention, technical characteristic, goal of the invention and technique effect are easy to understand, and below in conjunction with concrete diagram, set forth the present invention further.
As shown in Figure 1, be a kind of rain water collecting system of the present invention, comprise anti-eddy current siphon rainwater head 1, rainwater storage process structure 2, safe shunting well 3, Prefabricated combined septic tank device 4, abandoned stream filter 5, automatic filtering unit 6 and buried all-in-one 7.
Described anti-eddy current siphon rainwater head 1 is installed on safe shunting well 3 inlet pipes; The outlet of described safe shunting well 3 connects with the inlet tube of described Prefabricated combined septic tank device 4; The outlet of described Prefabricated combined septic tank device 4 connects with the inlet tube of described abandoned stream filter 5; The outlet of described abandoned stream filter 5 connects with the inlet tube of described automatic filtering unit 6; The outlet of described automatic filtering unit 6 connects with the import of described rainwater storage process structure 2; The outlet of described rainwater storage process structure 2 is provided with suction pump 21, and described suction pump 21 is connected by pipeline with described buried all-in-one 7.
Rainwater storage process structure in the present invention comprise inlet well 22, wet well 23 and reservoir skeleton 24, and described inlet well 22, wet well 23 and reservoir skeleton 24 is into a single integrated structure by its outside coated topping 25.Suction pump 21 is placed in this wet well 23.The below of described reservoir skeleton 24 is provided with composite impermeable membrane 241, sand cushion 242, concrete floor 243 and concrete cushion 244 from top to bottom successively.Composite impermeable membrane 245 and sand permeable formation 246 is provided with from the bottom to top successively above described reservoir skeleton 24.Effectively protected the internal construction of reservoir skeleton 24 by said structure, preventing pollution thing and sewage enter in pond.
Prefabricated combined septic tank device 4 in the present invention, abandoned stream filter 5 and automatic filtering unit 6 be all located in inspection-pit 8; The top of described rainwater storage process structure 2 is provided with two with its import with export the inspection-pit 28 communicated.
Prefabricated combined septic tank device 4 in the present invention is made by PE finished-product material, the hand basket that built-in stainless steel and non-woven fabrics are made, and has the built-in screen pack of net footpath 2mm can tackle larger rubbish and leaf simultaneously.Hand basket is provided with handle, can be gone out by the garbage-cleaning that the precipitation grains of sand in basket and filtration produce easily on ground, the normal work of available protecting later stage device.
Before the rainwater at initial stage, 2mm-5mm is generally seriously polluted, flow is also smaller, when flowing through the abandoned stream filter 5 in initial stage the present invention, because of the effect of gravity, to first be emitted by the blow-off pipe that low level is uncovered, after rainfall increases, blow-off pipe cuts out by the ball float being positioned at blow-off pipe upper end under the effect of water flow pressure, and rainwater will be forced to flow to outlet pipe; After rain stops, with the minimizing of the rainwater deposited in abandoned stream filter 5, ball float will automatically reset, thus complete abandoned stream effect.
The feature that automatic filtering unit 6 in the present invention utilizes rainwater gravity to flow, automatically separates the rubbish thing in rainwater and water, thus obtains cleaner rainwater.
The bleed off pipe 32 that safe shunting well 3 in the present invention comprises rainwater gathering tube 31 and connects with it; Described anti-eddy current siphon rainwater head 1 is arranged on the water inlet of described rainwater gathering tube 31.
Buried all-in-one 7 in the present invention is embedded in underground, is provided with floor drain pipe 70 for discharging the inner water overflowed bottom it.The intake pipe 71 of buried all-in-one 7 connects with described suction pump 21.Buried all-in-one 7 is provided with pressure release return pipe 72, blow-off pipe 73 and reuse pipe 74; Described pressure release return pipe 72 communicates with the outlet of rainwater storage process structure 2; Described blow-off pipe 73 connects with blow-off line; The external use pipeline of described reuse pipe 74.The outlet of rainwater storage process structure 2 connects with tap water moisturizing pipeline 75, and be connected with valve well 76 thereon, inside is provided with electromagnetic valve.
Anti-eddy current type siphon rainwater head 1 as shown in Figure 2,3 for using in the present invention, comprises roof drain chassis 11, is located at the roof drain chassis tail pipe 12 of lower end, described roof drain chassis 11 and is placed in the kuppe 13 at top, described roof drain chassis 11.The end of the roof drain tail pipe 12 in the present invention can direct socket connection pipeline; Also an adpting flange can be set, be connected with metallic conduit by seal.
The anti-eddy current type siphon rainwater head 1 of the present invention also comprises exhaust grille 14, mounting bracket 15 and filtering grid 16.Exhaust grille 14 in the present invention is located at the top of described kuppe 13; Described mounting bracket 15 is located at the top of roof drain chassis 11 water inlet pipe mouth, and described filtering grid 16 is placed in the inside of described mounting bracket 15.
The top circumference of the kuppe 13 in the present invention is provided with top vane (not shown), and bottom it, outer circumferential tilting is provided with equally distributed bottom blade 131; Described bottom blade 131 compartment is distributed in the bottom of kuppe 13, and described bottom blade 131 angle of inclination is with respect to the horizontal plane 85 °.
The lower blade 143 that in the present invention, the exhaust grille 14 of anti-eddy current type siphon rainwater head 1 comprises disk body 141, is located at the blade 142 at disk body 141 top and is located at bottom described disk body 141.Blade 142 angle of inclination with respect to the horizontal plane of the exhaust grille 14 in the present invention is 30 ° ~ 90 °, and preferably the angle of inclination of blade 142 is 60 ° in the present invention.Lower blade 143 angle of inclination with respect to the horizontal plane of exhaust grille 14 is 30 ° ~ 90 °, and the angle of inclination of lower blade 143 is preferably 90 °.When current inject exhaust grille 14, effectively air can be discharged, and be unlikely to water, gas to be mixed in roof drain chassis 11, affect speed and the effect of draining.
Anti-eddy current type siphon rainwater head exhaust grille of the present invention has the function such as gas-water separation, anti-eddy current.Before its roof drain, the depth of water can effectively control, and when before roof drain, stable level reaches design head, form siphon full packages pressure current in system, steady flow is good, overall performance is superior.Exhaust grille in the present invention is in rainfall, rainwater enters roof drain by blade, lower blade, when ponding reach a certain height, blocks air enters from the external world and eliminates turbulent state simultaneously by the anti-vortex device in roof drain, makes rainwater flood earial drainage reposefully and enters gutter.
In the present invention, the exhaust grille 14 of anti-eddy current type siphon rainwater head 1 is connected with described kuppe 13 is dismountable by bolt 144 or male and female dop, connected by dismountable mode, be convenient to the foreign material clearing up long term accumulation in roof drain chassis 11, be beneficial to dredging pipeline, facilitate periodic cleaning.
In the present invention, mounting bracket 15 height of anti-eddy current type siphon rainwater head 1 is identical with the dish height on described roof drain chassis 11, and this mounting bracket 15 is disc, it offers discharge orifice, is convenient to current and passes through.Filtering grid 16 is placed in this mounting bracket 15, this filtering grid 16 of top that filtering grid 16 is bolted on roof drain chassis effluent pipe mouth comprises filter 161 and to be located at below filter 161 integrated lower filter 162 with it, reached the effect of secondary filter current by this filtering grid 16, further the foreign material be mingled with in current are filtered.
Anti-eddy current type siphon rainwater head of the present invention can get rid of in time drop to overhead on rainwater, snow-broth, avoid the formation of ponding and overhead road surface threatened.And there is extremely strong anti-eddy current function, can well prevent air from bringing whole rain water collecting system into by the current of roof drain entrance, when water level is elevated to a certain degree before bucket, forms water seal and intercept entering of air completely, make rainwater flood earial drainage reposefully and enter gutter; The present invention reduces the depth of accumulated water of gutter to greatest extent, and the rainwater load that roofing is born is down to minimum, improves the metered flow of roof drain simultaneously.
Together with the storage of rainwater has been placed on the process of rainwater by the present invention, easy for installation, bearing capacity is large, the smoothness of its inwall is more smooth than concrete inner wall, internal construction not easily adheres to impurity, is more conducive to ensureing the stable of water quality, has the feature of low stain, low maintenance, easily recovery.
Be only preferred embodiment of the present invention in sum, be not used for limiting practical range of the present invention.Namely all equivalences done according to the content of the present patent application the scope of the claims change and modify, and all should belong to technology category of the present invention.
Claims (10)
1. rain water collecting system, is characterized in that: comprise rainwater storage process structure, anti-eddy current siphon rainwater head, safe shunting well, Prefabricated combined septic tank device, abandoned stream filter, automatic filtering unit and buried all-in-one; Described anti-eddy current siphon rainwater head is installed on safe shunting well inlet pipes; The outlet of described safe shunting well connects with the inlet tube of described Prefabricated combined septic tank device; The outlet of described Prefabricated combined septic tank device connects with the inlet tube of described abandoned stream filter; The outlet of described abandoned stream filter connects in the inlet tube of described automatic filtering unit; The outlet of described automatic filtering unit connects with the import of described rainwater storage process structure; The outlet of described rainwater storage process structure is provided with suction pump, and described suction pump is connected by pipeline with described buried all-in-one.
2. rain water collecting system according to claim 1, it is characterized in that: described rainwater storage process structure comprise inlet well, wet well and reservoir skeleton, described inlet well, wet well and reservoir skeleton are into a single integrated structure by its outside coated topping; Described suction pump is placed in this wet well.
3. rain water collecting system according to claim 2, is characterized in that: be provided with composite impermeable membrane, sand cushion, concrete floor and concrete cushion successively from top to bottom in the below of described reservoir skeleton.
4. the rain water collecting system according to Claims 2 or 3, is characterized in that: above described reservoir skeleton, be provided with composite impermeable membrane and sand permeable formation from the bottom to top successively.
5. rain water collecting system according to claim 1, is characterized in that: described Prefabricated combined septic tank device, abandoned stream filter and automatic filtering unit be all located in inspection-pit; The top of described rainwater storage process structure is provided with two with its import with export the inspection-pit communicated.
6. rain water collecting system according to claim 1, is characterized in that: the bleed off pipe that described safe shunting well comprises rainwater gathering tube and connects with it; Described anti-eddy current siphon rainwater head is arranged on the water inlet of described rainwater gathering tube.
7. rain water collecting system according to claim 1, is characterized in that: described anti-eddy current type siphon rainwater head comprises roof drain chassis, is located at the roof drain chassis tail pipe of lower end, described roof drain chassis and is placed in the kuppe at top, described roof drain chassis; Also comprise exhaust grille, mounting bracket and filtering grid; Described exhaust grille is located at the top of described kuppe; Described mounting bracket is located at the top of roof drain chassis water inlet pipe mouth, and it is inner that described filtering grid is placed in described mounting bracket; The lower blade that described exhaust grille comprises disk body, is located at the blade at disk body top and is located at bottom described disk body; Described filtering grid comprises filter and to be located at below filter integrated lower filter with it.
8. rain water collecting system according to claim 1, is characterized in that: described buried all-in-one is embedded in underground, and its intake pipe connects with described suction pump.
9. rain water collecting system according to claim 8, is characterized in that: described buried all-in-one is provided with pressure release return pipe, blow-off pipe and reuse pipe; Described pressure release return pipe communicates with the outlet of rainwater storage process structure; Described blow-off pipe connects with blow-off line; The external use pipeline of described reuse pipe.
10. rain water collecting system according to claim 8 or claim 9, is characterized in that: the outlet of described rainwater storage process structure connects with tap water moisturizing pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510075589.6A CN104631547A (en) | 2015-02-12 | 2015-02-12 | Rainwater collecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510075589.6A CN104631547A (en) | 2015-02-12 | 2015-02-12 | Rainwater collecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104631547A true CN104631547A (en) | 2015-05-20 |
Family
ID=53210744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510075589.6A Pending CN104631547A (en) | 2015-02-12 | 2015-02-12 | Rainwater collecting system |
Country Status (1)
| Country | Link |
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| CN (1) | CN104631547A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869237A (en) * | 2017-03-16 | 2017-06-20 | 浙江水利水电学院 | A kind of gardens rainwater-collecting water storage system and its construction method |
| CN107447807A (en) * | 2017-08-02 | 2017-12-08 | 夏峰 | A kind of subsurface stormwater collection system and its construction method |
| CN108264110A (en) * | 2016-12-31 | 2018-07-10 | 天津水态科技有限公司 | A kind of rainwater purification handles recycling system |
| CN111535420A (en) * | 2020-05-11 | 2020-08-14 | 深圳市绿粤生态科技有限公司 | Intelligent decision making system and method for rainwater collection and reuse system |
| CN111677080A (en) * | 2020-06-17 | 2020-09-18 | 北京建筑大学 | Rainwater purification system |
| CN112609908A (en) * | 2020-12-02 | 2021-04-06 | 程鹏 | Gutter drainage system that can dredge certainly |
| CN112878421A (en) * | 2021-01-12 | 2021-06-01 | 王齐 | Passive automatic control rainwater microbubble layered sewage collection system |
| ES2856956A1 (en) * | 2020-03-27 | 2021-09-28 | El Mundo Del Sifonico S L | Self-cleaning self-priming siphon sump (Machine-translation by Google Translate, not legally binding) |
| CN113585433A (en) * | 2021-07-28 | 2021-11-02 | 温州市龙湾建设园林绿化工程有限公司 | A rainwater collection circulation system for ecological garden |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108264110A (en) * | 2016-12-31 | 2018-07-10 | 天津水态科技有限公司 | A kind of rainwater purification handles recycling system |
| CN106869237A (en) * | 2017-03-16 | 2017-06-20 | 浙江水利水电学院 | A kind of gardens rainwater-collecting water storage system and its construction method |
| CN106869237B (en) * | 2017-03-16 | 2019-05-24 | 浙江水利水电学院 | A kind of gardens rainwater-collecting water storage system and its construction method |
| CN107447807A (en) * | 2017-08-02 | 2017-12-08 | 夏峰 | A kind of subsurface stormwater collection system and its construction method |
| ES2856956A1 (en) * | 2020-03-27 | 2021-09-28 | El Mundo Del Sifonico S L | Self-cleaning self-priming siphon sump (Machine-translation by Google Translate, not legally binding) |
| CN111535420A (en) * | 2020-05-11 | 2020-08-14 | 深圳市绿粤生态科技有限公司 | Intelligent decision making system and method for rainwater collection and reuse system |
| CN111677080A (en) * | 2020-06-17 | 2020-09-18 | 北京建筑大学 | Rainwater purification system |
| CN112609908A (en) * | 2020-12-02 | 2021-04-06 | 程鹏 | Gutter drainage system that can dredge certainly |
| CN112878421A (en) * | 2021-01-12 | 2021-06-01 | 王齐 | Passive automatic control rainwater microbubble layered sewage collection system |
| CN113585433A (en) * | 2021-07-28 | 2021-11-02 | 温州市龙湾建设园林绿化工程有限公司 | A rainwater collection circulation system for ecological garden |
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Application publication date: 20150520 |