CN113550376A - Rainwater recycling system and method - Google Patents
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- CN113550376A CN113550376A CN202110845273.6A CN202110845273A CN113550376A CN 113550376 A CN113550376 A CN 113550376A CN 202110845273 A CN202110845273 A CN 202110845273A CN 113550376 A CN113550376 A CN 113550376A
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- 238000004064 recycling Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 123
- 238000003860 storage Methods 0.000 claims abstract description 16
- 239000010865 sewage Substances 0.000 claims abstract description 11
- 230000005855 radiation Effects 0.000 claims description 5
- 230000001954 sterilising effect Effects 0.000 claims description 5
- 230000000415 inactivating effect Effects 0.000 claims description 3
- 238000012805 post-processing Methods 0.000 claims description 3
- 238000004659 sterilization and disinfection Methods 0.000 claims description 3
- 230000000249 desinfective effect Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 12
- 238000001914 filtration Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 230000009897 systematic effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 208000034699 Vitreous floaters Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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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
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
-
- 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
- E03F5/0401—Gullies for use in roads or pavements
- E03F5/0404—Gullies for use in roads or pavements with a permanent or temporary filtering device; Filtering devices specially adapted therefor
-
- 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
- E03F5/041—Accessories therefor
-
- 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
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
- E03F5/105—Accessories, e.g. flow regulators or cleaning devices
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/18—Tanks for disinfecting, neutralising, or cooling sewage
-
- 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 relates to the technical field of building water treatment facilities, and discloses a rainwater recycling system and a rainwater recycling method, wherein the rainwater recycling system sequentially comprises a rainwater collecting unit, a pretreatment unit, a storage unit, a post-treatment unit, a reuse water pipe network and a system control cabinet capable of adjusting the working state of each unit; the rainwater collecting unit comprises a rainwater collecting pipe network and a rainwater collecting pipe, and the rainwater collecting pipe transmits water in the rainwater collecting pipe network to the pretreatment unit; the pretreatment unit comprises one or more of a safety flow-dividing well, a sewage interception basket hanging well and a flow abandoning filter well. Systematized and large-scale, and has large collected rainfall and high recycling value; the rainwater recycling method is simple to operate, strong in controllability, capable of being manually operated and remotely controlled, and has great popularization value and wide application prospect.
Description
Technical Field
The invention relates to the technical field of building water treatment facilities, in particular to a rainwater recycling system and method.
Background
In the technical field of building water treatment facilities, the recycling of rainwater has become more and more common in the industry, because China is a country with shortage of water resources and frequent flood, waterlogging and drought disasters, the population accounts for 22 percent of the world population, the fresh water accounts for only 8 percent, and the water resource amount occupied by the population is only 2500m3In one year, the water resource is about 1/4 which is occupied by people in the world, and not only is the water resource in China short, but also the space-time distribution is uneven, and the contradiction between water resource supply and demand in northern areas is particularly prominent.
In China, there are three main types of urban water shortage: engineering water shortage, pollution water shortage and resource water shortage. The project type water shortage refers to the tension condition that the city is lack of water due to the shortage of water taking, water supply projects and facilities. The pollution type water shortage refers to the situation of water supply shortage caused by the fact that urban water sources are polluted and lose utilization value. Resource type water shortage refers to the situation of water supply and water shortage caused by insufficient water resource quantity to support the water demand of cities. In reality, there are often two or three types of water shortage problems for a city.
In cities and towns, surface runoff is wasted, or the surface runoff enters a sewer to become sewage due to factors such as hardening of the ground, less vegetation and the like, so that the sewage treatment is more troublesome, and the conventional small rainwater collecting device is difficult to popularize and implement in a large scale and in a standardized way.
The utilization of rainwater in cities in China starts late, and small and local non-standard applications are mainly applied in water-deficient areas. Originally, urban rainwater utilization in China only has some small rainwater collecting and utilizing projects in some water-deficient areas, along with the great increase of production and domestic water consumption in China in recent years, the contradiction of water resource shortage is increasingly prominent, underground water level is reduced due to excessive exploitation of underground water in various places, underground water resources are exhausted, and the utilization of urban rainwater resources causes more attention of relevant experts and scholars.
Therefore, a systematic and large-scale rainwater collecting and recycling system with large rainwater collecting amount and high recycling value is needed in the technical field of building water treatment facilities.
Disclosure of Invention
The invention overcomes the defects of the prior art, provides a systematic and large-scale rainwater recycling system with large collected rainfall and high recycling value, and provides a rainwater recycling method based on the rainwater recycling system.
The invention is realized by the following technical scheme:
a rainwater recycling system sequentially comprises a rainwater collecting unit, a pretreatment unit, a storage unit, a post-treatment unit, a reuse water pipe network and a system control cabinet capable of adjusting the working state of each unit; the rainwater collecting unit comprises a rainwater collecting pipe network and a rainwater collecting pipe, and the rainwater collecting pipe transmits water in the rainwater collecting pipe network to the pretreatment unit; the pretreatment unit comprises one or more of a safety flow-dividing well, a sewage interception basket hanging well and a flow abandoning filter well.
Furthermore, the storage unit comprises a rainwater bin for storing rainwater and a clear water tank for storing clear water, and a filter is arranged between the rainwater bin and the clear water tank.
Furthermore, the volume of the rainwater bin is 3-6 times of that of the clear water tank.
Furthermore, a lifting pump is arranged between the rainwater bin and the filter, and the lifting pump is a two-stage series pump set.
Furthermore, the post-treatment unit comprises a constant pressure tank positioned on a pipeline of the clean water tank to the reuse water pipe network, and the constant pressure tank is used for adjusting the pressure of water conveyed to the reuse water pipe network.
Furthermore, the post-treatment unit also comprises an irradiation sterilizer positioned on a pipeline from the clean water tank to the reuse water pipe network, and the irradiation sterilizer is used for sterilizing and inactivating the water body.
Furthermore, a variable frequency pump is arranged between the constant pressure tank and the clear water tank, and the variable frequency pump is a two-stage series pump set.
The invention also provides a rainwater recycling method, which utilizes the rainwater recycling system and comprises the following steps:
s1, collecting and recycling rainwater;
s2, pretreating rainwater;
s3, storing rainwater;
s4, treating in rainwater to obtain clear water;
s5, storing clear water;
s6, post-processing with clear water;
and S7, recycling clean water.
Further, the equipment or device adopted in S2 is one or more of a safety diversion well, a sewage interception basket well and a flow abandoning filter well.
Further, in S6, the rainwater post-treatment includes a constant pressure operation and/or a radiation sterilization operation.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the invention discloses a rainwater recycling system and a rainwater recycling method, wherein the rainwater recycling system sequentially comprises a rainwater collecting unit, a pretreatment unit, a storage unit, a post-treatment unit, a reuse water pipe network and a system control cabinet capable of adjusting the working state of each unit; the rainwater collecting unit comprises a rainwater collecting pipe network and a rainwater collecting pipe, and the rainwater collecting pipe transmits water in the rainwater collecting pipe network to the pretreatment unit; the pretreatment unit comprises one or more of a safety flow-dividing well, a sewage interception basket hanging well and a flow abandoning filter well. Systematized and large-scale, and has large collected rainfall and high recycling value; the rainwater recycling method is simple to operate, strong in controllability, capable of being manually operated and remotely controlled, and has great popularization value and wide application prospect.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic front view of the overall structure of the present invention;
FIG. 2 is a perspective view of the overall structure of the present invention;
FIG. 3 is a schematic view of the process of the present invention.
Reference numbers and corresponding part names in the drawings:
1-rainwater collecting pipe, 21-safe flow-dividing well, 22-sewage-intercepting hanging basket well, 23-abandon flow filtering well, 3-rainwater bin, 4-lift pump, 5-filter, 6-clear water tank, 7-variable frequency pump, 8-constant pressure tank and 9-irradiation sterilizer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
A rainwater recycling system sequentially comprises a rainwater collecting unit, a pretreatment unit, a storage unit, a post-treatment unit, a reuse water pipe network and a system control cabinet capable of adjusting the working state of each unit; the rainwater collecting unit comprises a rainwater collecting pipe network and a rainwater collecting pipe 1, and the rainwater collecting pipe 1 conveys water in the rainwater collecting pipe network to the pretreatment unit; the pretreatment unit comprises one or more of a safety diversion well 21, a sewage interception basket well 22 and a abandon flow filter well 23.
Further, the storage unit comprises a rainwater bin 3 for storing rainwater and a clear water tank 6 for storing clear water, and a filter 5 is arranged between the rainwater bin 3 and the clear water tank 6.
Furthermore, the volume of the rainwater bin 3 is 3-6 times of the volume of the clean water tank 6.
Furthermore, a lifting pump 4 is arranged between the rainwater bin 3 and the filter 5, and the lifting pump 4 is a two-stage series pump set.
Further, the post-treatment unit comprises a constant pressure tank 8 positioned on a pipeline of the clean water tank 6 leading to the reuse water pipe network, and the constant pressure tank 8 is used for adjusting the pressure of water conveyed to the reuse water pipe network.
Further, the post-treatment unit also comprises an irradiation sterilizer 9 positioned on a pipeline of the clean water tank 6 leading to the reuse water pipe network, and the irradiation sterilizer 9 is used for sterilizing and inactivating the water body.
Further, a variable frequency pump 7 is arranged between the constant pressure tank 8 and the clean water tank 6, and the variable frequency pump 7 is a two-stage series pump set.
The invention also provides a rainwater recycling method, which utilizes the rainwater recycling system and comprises the following steps:
s1, collecting and recycling rainwater;
s2, pretreating rainwater;
s3, storing rainwater;
s4, treating in rainwater to obtain clear water;
s5, storing clear water;
s6, post-processing with clear water;
and S7, recycling clean water.
Further, the equipment or device adopted in S2 is one or more of a safety diversion well 21, a sewage interception basket well 22 and a abandon flow filter well 23.
Further, in S6, the rainwater post-treatment includes a constant pressure operation and/or a radiation sterilization operation.
It is emphasized that the rainwater of the scheme is mainly recycled for greening watering, road surface and garage washing and the like, so that the drinking standard does not need to be met, and particularly, the rainwater quality (after initial flow abandoning) is collected: the COD is 70-100 mg/L, SS is 20-40 mg/L, the chroma is 10-40 degrees, and the COD and SS indexes of the treated rainwater meet the following table:
the collected rainwater is intercepted by the automatic flow abandoning and filtering device at first, runoff at the early stage of rainfall is intercepted, the thickness of the runoff can be set according to the quality of the rainwater, when the intercepted water amount reaches a set value, the flow abandoning is finished, and the rainwater enters the water storage tank; a rainwater lifting pump is arranged outside the rainwater storage tank, so that rainwater is lifted to a 3P distributed rainwater processor for processing, and the processed water automatically flows into a clear water tank; the clean water is pressurized by a clean water pump in the clean water tank and is supplied to a reuse water pipe network after being disinfected by an ultraviolet disinfector. The waste rainwater of the automatic waste filtering device is discharged into a rainwater pipe network, and the discharged mud water in the rainwater storage tank is discharged into a sewage pipe network. Wherein the effective volume V of the rainwater bin1＝60m3Effective volume V of clean water tank2＝8m3。
Understandably, the initial rainwater has poor quality and contains larger impurities, silt and the like, and the clear rainwater can be recycled by collecting through the discarding and filtering device, so that the rainwater treatment process can be reduced, the operation cost is reduced, and the service life of the treatment equipment is prolonged. The pretreatment unit is specifically explained below:
(1) the device comprises the following components: the automatic flow abandoning and filtering device comprises a flow dividing and filtering well (internally provided with a filtering device), a flow abandoning control well (internally provided with a flow abandoning electric valve), a rain gauge, an electric control cabinet, a power supply cable and the like. The shunting filtration well is provided with a rainwater inlet and a rainwater outlet (a abandoning pipe, a collecting pipe and an overflow pipe), wherein the elevation of the rainwater outlet of the abandoning pipe is lowest, and the front end of the collecting pipe is provided with a filter screen which can intercept coarse floaters such as leaves carried in rainwater. The flow abandoning pipeline is provided with an electric valve which is arranged in the flow abandoning control well and is normally open at ordinary times. The rain gauge adopts a grid-type rain gauge, the rainfall is detected through a grid displacement sensor, and the water inlet and the water outlet are controlled by an upper electric valve and a lower electric valve, so that the rainfall of the grid-type rain gauge is not lost in the rainfall recording process, and the accuracy of the metering process is ensured.
(2) The control mode is as follows: the rainfall is sensed through the rain gauge during early rainfall, collected rainwater enters the split-flow filter well, the flow direction is abandoned to the flow pipeline firstly, when the rainfall reaches the set abandoned flow rainfall (the roof is abandoned to flow and can adopt the runoff thickness of 2-3 mm, the ground is abandoned to flow and can adopt the runoff thickness of 3-5 mm), the electric valve for abandoning the flow is closed, the water flow in the abandoned flow direction stops, and meanwhile, the rainwater enters the collection pipeline and flows to the rainwater collection tank. If the collected rainwater flow is too large, when the water level in the rainwater storage tank exceeds the ultrahigh liquid level of the rainwater storage tank, the rainwater can enter an outdoor rainwater pipe network through a safety flow dividing pipeline arranged by closing the water inlet electromagnetic valve and the flow discarding device well.
It can be understood that the scheme is also provided with 1 electrical control cabinet, the electrical control adopts PLC control, the daily operation of the rainwater treatment facility adopts automatic control, and the rainwater treatment facility has a manual control function; the control cabinet has the functions of displaying equipment operation and fault alarm signals. The specific explanation is as follows:
1. the liquid level in the clear water tank is controlled as follows:
(1) at low liquid level: the reuse water pump stops supplying water, the water replenishing electromagnetic valve is automatically opened to replenish water to the clean water tank, and the low water level is displayed on the electric control cabinet;
(2) when the liquid level is in the middle: supplying water by a rainwater lift pump;
(3) at high liquid level: closing the rainwater lifting pump and the water replenishing electromagnetic valve;
(4) at ultrahigh liquid level: and outputting sound and light alarm signals to alarm.
2. The liquid level in the rainwater storage tank is controlled as follows:
(1) the opening time of the emptying pipe is determined according to the sludge deposition amount in the actual tank on site (generally once to twice a year), and the emptying pipe is manually controlled to be opened;
(2) the rainwater lift pump is started when the liquid level is medium, and cannot be started when the liquid level is low, and the operation is stopped when the rainwater water storage tank runs to the low liquid level. When the collected liquid level in the rainwater storage tank is at the ultrahigh water level, the electromagnetic valve on the water inlet pipe is closed to stop water inlet, and the alarm is displayed on the electrical control cabinet.
3. The flow abandoning system is controlled as follows:
the flow abandoning control system adopts two control modes of automation and manual operation, can display the flow abandoning operation state on a main control cabinet of the system and has the fault alarm function. And a liquid level monitoring device is arranged, and a water level signal is led to the property management center. When the water level in the rainwater collection tank reaches the ultrahigh water level, an alarm is given to the property management center.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
It will be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention, and do not indicate or imply that the components or mechanisms so referred to must be in a particular orientation, constructed and operated in a particular orientation, and thus are not to be considered as limiting the invention.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A rainwater recycling system is characterized by sequentially comprising a rainwater collecting unit, a pretreatment unit, a storage unit, a post-treatment unit, a reuse water pipe network and a system control cabinet capable of adjusting the working state of each unit;
the rainwater collection unit comprises a rainwater collection pipe network and a rainwater collection pipe (1), and the rainwater collection pipe (1) conveys water in the rainwater collection pipe network to the pretreatment unit; the pretreatment unit comprises one or more of a safe diversion well (21), a sewage interception basket well (22) and a flow abandoning filter well (23).
2. A rainwater recycling system according to claim 1, characterized in that said storage unit comprises a rainwater tank (3) for storing rainwater and a clear water tank (6) for storing clear water, a filter (5) being arranged between said rainwater tank (3) and said clear water tank (6).
3. A rainwater recycling system according to claim 2, characterized in that the volume of said rainwater bin (3) is 3-6 times the volume of said clear water tank (6).
4. A rainwater recycling system according to claim 2, characterized in that a lift pump (4) is arranged between said rainwater bin (3) and said filter (5), said lift pump (4) being a two-stage series pump set.
5. A rainwater recycling system according to claim 3, characterized in that said post-treatment unit comprises a constant pressure tank (8) on the pipe from the clean water tank (6) to the return water pipe network, said constant pressure tank (8) being adapted to regulate the pressure of the water fed to the return water pipe network.
6. A rainwater recycling system according to claim 5, characterized in that said post-treatment unit further comprises a radiation disinfector (9) located on the pipe of the clean water tank (6) to the reuse water network, said radiation disinfector (9) being used for disinfecting and inactivating the water body.
7. A rainwater recycling system according to claim 3, characterized in that a variable frequency pump (7) is arranged between said constant pressure tank (8) and said clear water tank (6), said variable frequency pump (7) is a two-stage series pump set.
8. A rainwater recycling method using the rainwater recycling system according to any one of claims 1 to 7, comprising the steps of:
s1, collecting and recycling rainwater;
s2, pretreating rainwater;
s3, storing rainwater;
s4, treating in rainwater to obtain clear water;
s5, storing clear water;
s6, post-processing with clear water;
and S7, recycling clean water.
9. A method according to claim 8, wherein the equipment or device adopted in S2 is one or more of a safety diversion well (21), a sewage interception basket well (22) and a abandon filter well (23).
10. A rainwater recycling system method according to claim 9, wherein said rainwater post-treatment includes a constant pressure operation and/or a radiation sterilization operation at S6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110845273.6A CN113550376A (en) | 2021-07-26 | 2021-07-26 | Rainwater recycling system and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110845273.6A CN113550376A (en) | 2021-07-26 | 2021-07-26 | Rainwater recycling system and method |
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| CN113550376A true CN113550376A (en) | 2021-10-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115028300A (en) * | 2022-05-25 | 2022-09-09 | 浙江友安建设工程管理有限责任公司 | Municipal engineering road rainwater recycling device and using method |
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| KR100760467B1 (en) * | 2006-12-08 | 2007-09-20 | 이원선 | Recycling system of rainwater |
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| CN111321775A (en) * | 2018-12-17 | 2020-06-23 | 骆雁 | Green energy-saving rainwater recovery processing system |
| CN211922818U (en) * | 2020-03-12 | 2020-11-13 | 广东晨工环保工程实业有限公司 | Novel rainwater is collected device |
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100760467B1 (en) * | 2006-12-08 | 2007-09-20 | 이원선 | Recycling system of rainwater |
| CN205669226U (en) * | 2016-05-24 | 2016-11-02 | 上海瑞河企业集团有限公司 | A kind of rainwater catchment system automatic control system |
| CN207714486U (en) * | 2017-12-05 | 2018-08-10 | 徐州市天益塑料制品有限公司 | A kind of subdistrict greening rainwater recycling system |
| CN111321775A (en) * | 2018-12-17 | 2020-06-23 | 骆雁 | Green energy-saving rainwater recovery processing system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115028300A (en) * | 2022-05-25 | 2022-09-09 | 浙江友安建设工程管理有限责任公司 | Municipal engineering road rainwater recycling device and using method |
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Application publication date: 20211026 |