CN111691526A - Rainwater treatment and recycling system - Google Patents

Rainwater treatment and recycling system Download PDF

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Publication number
CN111691526A
CN111691526A CN202010671546.5A CN202010671546A CN111691526A CN 111691526 A CN111691526 A CN 111691526A CN 202010671546 A CN202010671546 A CN 202010671546A CN 111691526 A CN111691526 A CN 111691526A
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CN
China
Prior art keywords
rainwater
well
flow abandoning
safe
pipe
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.)
Pending
Application number
CN202010671546.5A
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Chinese (zh)
Inventor
戴万松
陈义峰
王廷武
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Time Source Nanjing Environmental Technology Co ltd
Original Assignee
Time Source Nanjing Environmental Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Time Source Nanjing Environmental Technology Co ltd filed Critical Time Source Nanjing Environmental Technology Co ltd
Priority to CN202010671546.5A priority Critical patent/CN111691526A/en
Publication of CN111691526A publication Critical patent/CN111691526A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/04Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/0401Gullies for use in roads or pavements
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F3/00Sewer pipe-line systems
    • E03F3/02Arrangement of sewer pipe-lines or pipe-line systems
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/04Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/06Gully gratings
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/10Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/10Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
    • E03F5/101Dedicated additional structures, interposed or parallel to the sewer system
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/10Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
    • E03F5/105Accessories, e.g. flow regulators or cleaning devices
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/22Adaptations of pumping plants for lifting sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/001Runoff or storm water
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F2201/00Details, devices or methods not otherwise provided for
    • E03F2201/10Dividing the first rain flush out of the stormwater flow

Abstract

The invention discloses a rainwater treatment and recycling system which sequentially comprises a safe flow distributing well, a rainwater flow abandoning device well, an underground purification all-in-one machine and a rainwater storage tank, wherein the rainwater flow abandoning device well is internally provided with a rainwater flow abandoning device, one end of the rainwater flow abandoning device well is connected with a rainwater collecting pipe of the safe flow distributing well, the other end of the rainwater flow abandoning device well is connected with a collecting pipeline, the collecting pipeline is connected to a connecting pipe at the upper part of one side of the underground purification all-in-one machine, a connecting pipe at the lower part of the other side of the underground purification all-in-one machine is connected into the rainwater storage tank, a PP water. Rainwater is collected and shunted through the safe shunting well, flows into rainwater again and abandons a class ware and intercepts large granule suspended solid, and the rainwater that gets into again buries and purifies the all-in-one and abandons class and just strain carries out advanced treatment, handles up to standard promptly before the rainwater gets into the cistern again, need not the secondary and promotes the purification, makes the operation of system more energy-conserving, need not professional management.

Description

Rainwater treatment and recycling system
Technical Field
The invention relates to a rainwater recovery system, in particular to a rainwater treatment and recycling system.
Background
The existing rainwater recovery process usually adopts: rainwater pipe network- -abandon stream- -reservoir regulation (PP module pool or concrete pool) - -water pump lifting- -purification treatment- -clean water pool (PP module pool or concrete pool) - -recycle;
the biggest problem of the process is that the sewage is deposited in the reservoir, particularly, the PP module reservoir is adopted, once the sewage is deposited, the sewage is extremely difficult to clean, the water quality in the reservoir deteriorates and smells, and the sewage cannot be recycled, so that the function of collecting and recycling rainwater is lost.
Secondly, the rainwater recovery is greatly influenced by weather, water is not needed when the rainwater is rainy, and water is needed only when the rainwater is not rainy, so that the water quality is particularly important to maintain, and the traditional process has no treatment measures before the rainwater is collected into the reservoir, so that the water quality stored in the reservoir is inevitably deteriorated.
Thirdly, the maintenance, operation and management of the system are complex, and the department in practical use cannot be equipped with professional personnel for management.
Fourthly, the process needs to lift the rainwater for the second time to enter a purification treatment facility, and the operation and maintenance cost is high.
The vast majority of domestic rainwater recovery systems become furnishings due to the four reasons, and great resource waste is caused.
Disclosure of Invention
In order to solve the technical problems, the invention provides a rainwater treatment and recycling system, rainwater can be treated to reach the standard before entering a reservoir, and dirt deposition and water quality deterioration in the reservoir are avoided.
The invention provides the following technical scheme:
reuse system is handled to rainwater includes in proper order that safe reposition of redundant personnel well, rainwater abandons a class well, buries and purifies all-in-one and rainwater cistern, the one end of safe reposition of redundant personnel well meets rainwater collection pipe, another termination rainwater collecting pipe of safe reposition of redundant personnel well, transversely be provided with the rainwater in the safe reposition of redundant personnel well and abandon the flow pipe, the rainwater abandons and sets up the rainwater in class ware well and abandons a class well, the rainwater abandons a class well one end and connects the rainwater collecting pipe of safe reposition of redundant personnel well, another termination collection pipeline of rainwater class well, collect the pipe connection to bury and purify the takeover on one side upper portion of all-in-one, bury and purify the takeover of all-in-one opposite side lower part and be connected to in the rainwater cistern, set up PP retaining module in the middle of.
Furthermore, the sludge discharge pump is connected with a downstream rainwater well through a communication pipeline, and the recycling pump is connected with a rainwater recycling pipe network through another communication pipeline.
Furthermore, a water quality sensor is arranged in the safe diversion well.
Furthermore, the rainwater flow abandoning device comprises a shell, a grating and an electric actuator, wherein the grating is arranged in the front end of the shell of the rainwater flow abandoning device.
Further, the electric actuator is an electric butterfly valve.
Compared with the prior art, the invention has the beneficial effects that: rainwater is collected and shunted by a safe shunt well, then flows into a rainwater flow abandoning device to intercept large granular suspended matters, then enters an underground purification all-in-one machine to carry out deep treatment on the rainwater after abandoning and primary filtration, is filtered in multiple stages, then enters a rainwater reservoir to store the rainwater after abandoning, and then is sent into a rainwater recycling pipe network for recycling, the treatment reaches the standard before the rainwater enters the reservoir, and the sewage deposition and water quality deterioration in the reservoir are avoided; the full gravity flow purification treatment process does not need secondary lifting purification, so that the system is more energy-saving in operation, and professional management is not needed (only regular inspection is needed).
Drawings
Fig. 1 is a flow chart of the rainwater recovery system of the present invention.
FIG. 2 is a flow chart of the rainwater treatment and reuse process of the present invention.
Fig. 3 is a cross-sectional view of a safety diverter well according to the present invention.
Figure 4 is a cross-sectional view of a controller well of the present invention.
Fig. 5 is a schematic structural view of a rainwater storage reservoir according to the present invention.
FIG. 6 is a control schematic diagram of the electric control cabinet of the present invention.
In the figure:
110. a safe diversion well; 220. a rainwater flow abandoning well; 330. burying and purifying integrated machines; 440. a rainwater reservoir;
1. the device comprises a rainwater flow abandoning device 101, a grid 102, an electric actuator 103 and a shell; 2. the water storage device comprises a PP water storage module, a 201, a gravel layer, a 202, a concrete bottom plate, a 203, a geotextile impermeable film layer, a 204 and a concrete top plate; 3. a pressure gauge; 4. an electric control cabinet; 5. a recycling pump; 6. a sludge discharge pump; 7. a rainwater collecting pipe; 8. a rainwater collecting pipe; 9. a rainwater discharge pipe; 10. a collection pipeline; 11. a check valve; 12. a ball valve; 13. a water quality sensor; 14. a plain soil ramming layer; 15. a gravel layer; 16. a plain concrete bottom surface; 17. a plain soil tamping bottom layer, 18, a communicating pipeline, 19 and another communicating pipeline; 20. and (4) soft joints.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the rainwater treatment and recycling system of the present invention sequentially comprises a safe diversion well 110 and a rainwater flow abandoning well 220, the underground purification all-in-one machine 330 and the rainwater reservoir 440 are arranged, one end of the safety diversion well 110 is connected with the rainwater collecting pipe 7, the other end of the safety diversion well 110 is connected with the rainwater collecting pipe 8, a rainwater abandoning pipe 9 is transversely arranged in the safety diversion well 110, a rainwater abandoning device 1 is arranged in the rainwater abandoning device well 220, one end of the rainwater abandoning device well 220 is connected with the rainwater collecting pipe 8 of the safety diversion well 110, the other end of the rainwater abandoning device well 220 is connected with a collecting pipeline 10, the collecting pipeline 10 is connected to a connecting pipe at the upper part of one side of the underground purification all-in-one machine 330, the connecting pipe at the lower part of the other side of the underground purification all-in-one machine 330 is connected into the rainwater reservoir 440, the PP water storage.
The top of the PP water storage module 2 is provided with a concrete top plate 204, the upper end and the lower end of the PP water storage module 2 are both paved with geotextile anti-seepage film layers 203, and the bottom of the PP water storage module 2 is fixed on a concrete bottom plate 202 and a gravel layer 201.
The sludge pump 6 is connected with a downstream rainwater well through a communication pipeline 18, and the recycling pump 5 is connected with a rainwater recycling pipe network through another communication pipeline 19.
The two communicating pipelines are respectively connected with a check valve 11 and a pressure gauge 3 through a soft joint 20, and the check valve 11 is also connected with a ball valve 12.
Fig. 3 is a sectional view of the safety diversion well, wherein a water quality sensor 13 is arranged in the safety diversion well 110, the bottom of the well is fixed on a gravel layer 15, and the gravel layer 15 is fixed on a soil compacting layer 14.
Safe diversion well 110: the rainwater drainage device is used for collecting and distributing rainwater and is a measure well for guaranteeing rainwater drainage safety. The safe diversion well is used for connecting the rainwater collecting pipe, the rainwater collecting pipe and the rainwater flow abandoning pipe and simultaneously coordinating the pipe diameter difference among the rainwater pipes. The initial rainwater discarding flow rate, or the excessive water amount when the rainwater runoff is larger than the collecting capacity of the system or the system is in failure, can be discharged through the rainwater discarding flow pipe 1. The rainwater collecting pipe is used for collecting high-quality rainwater in the later stage and is connected to the rainwater flow abandoning device 1. The rainwater collecting pipe in the safe diversion well is at a certain height from the bottom of the well and is used as a mud deposition space.
In the rainfall process, the rainwater at the initial stage erodes the roof and the road surface, a large amount of dust and silt are mixed in the rainwater, the water quality is poor, the rainwater is abandoned, the abandoned rainwater is directly discharged into a municipal rainwater pipe network, and the later-stage clearer rainwater is collected, stored and then appropriately treated and recycled to reduce the treatment procedures, the operating cost and the like. The flow abandoning requirement can be realized by the rainwater flow abandoning device 1.
The rainwater flow abandoning device 1 consists of a shell 103, a grating 101 and an electric actuator 102 and is installed in a buried mode; the built-in grid 101 of casing 103 front end of ware 1 is abandoned to rainwater for intercept large granule suspended solid, grid interval 3mm, the rain stops the back and takes out the hand-basket grid and empty can. The subsidiary electric control cabinet 4 is arranged above the ground.
Electric actuator 102 chooses for use the electric butterfly valve for the break-make of control rainwater collection pipeline, and when the electric butterfly valve that the ware 1 was abandoned to the rainwater opened, the rainwater can advance rainwater cistern 440 through collecting the pipeline, and when the electric butterfly valve was closed, the rainwater was collected the pipeline and is cut off, and the rainwater was discharged into municipal rainwater pipeline by safe reposition of redundant personnel well 110.
As shown in fig. 4, the bottom of the storm drain well 220 is fixed to the plain concrete bottom surface 16 and the plain soil rammed bottom layer 17.
The rainwater abandoning device 1 and the safe diversion well 110 are jointly used for rainwater abandoning.
The abandoning control process does not need manual control, and the PLC control program arranged in the electric control cabinet 4 is used for carrying out multi-point signal series monitoring control, and can carry out memory processing on the frequency of rainfall, rainfall capacity, rainfall intensity and the like, adjust the abandoning time according to test data and collect high-quality rainwater. Meanwhile, the flow abandoning controller is closed when the high liquid level of the reservoir is alarmed, so that excessive rainwater overflows to a municipal rainwater pipe network in a safe diversion well under the condition of overlarge rainfall during rainstorm. The multipoint signal series connection monitoring control point positions comprise:
(1) determining the time (conventional value) of rainfall runoff of 2-3mm at the initial stage of flow abandoning according to the confluence area and the confluence time;
(2) determining the collection time according to the rain frequency, and if the time interval between two rains in Nanjing is within 12h, not discarding the flow (dynamic value);
(3) depending on the reservoir level, it is determined whether to collect (alarm value).
The underground purification all-in-one machine 330: the rainwater after the abandoning and the primary filtration is subjected to advanced treatment and multi-stage filtration, and the filtration precision reaches the micron level. The filtering area of a single device reaches 3 square meters, the sewage accommodating space is large, and the treated rainwater directly enters the rainwater storage tank 440 to be stored for later use.
Rainwater reservoir 440: storing the rainwater after the flow abandoning, adopting a reinforced concrete structure and internally arranging a water quality maintaining system to prevent the water quality from deteriorating and changing into odor.
Rainwater on roof and ground is collected, enters the underground purification all-in-one machine 330 after primary rainwater discarding and filtering, enters the rainwater reservoir 440 after being processed by the underground purification all-in-one machine 330, and the processed rainwater is reused for greening and road watering.
The rainwater reservoir water replenishing adopts tap water to set a backflow preventer for water replenishing, adopts an electromagnetic valve and liquid level control automatic water replenishing, and ensures that the water quantity requirement of greening and road sprinkling reuse water can be met.
The treated rainwater is conveyed to each water using point by a constant pressure water supply pump set.
Description of operation control:
the rain gauge is arranged on the outdoor ground and used for monitoring parameters such as rainfall and the like in real time and controlling the starting and stopping of the rainwater flow abandoning device.
Rainwater reservoir 440 needs to be equipped with 1 set of float level meter, which is provided with high, medium and low liquid levels for the control system of the rainwater treatment system.
Description of liquid level control of the rainwater reservoir:
when the liquid level in the rainwater reservoir is low, the reservoir sludge pump and the recycling pump cannot be started;
when the liquid level in the rainwater reservoir is high, the rainwater discarding control valve is closed, and rainwater cannot enter the rainwater reservoir.
When the liquid level in the rainwater storage tank is a medium-low liquid level, the water replenishing electromagnetic valve is opened;
when the liquid level in the rainwater storage tank is high, the tap water replenishing electromagnetic valve is closed.
As shown in fig. 2, the purified water collection process flow is as follows: the safe diversion well, the rainwater flow abandoning device, the buried purification integrated machine, the rainwater reservoir and the like are recycled.
Rainwater flows through a rainwater flow abandoning device, the rainwater flow abandoning device abandons early rainwater, performs rough filtration pretreatment, and then directly flows into the underground purification all-in-one machine by gravity for deep purification treatment, and the treated water quality reaches the reuse standard; gravity flows into a rainwater reservoir. Only the electric valve of the flow discarding filter needs to be automatically opened and closed by a power supply according to rainfall in the whole process, and other parts have no energy consumption; no personnel management is required.
The invention has the beneficial effects that:
1. clean water is collected, no dirt enters the water storage tank, and the water storage tank is kept clean all the time.
2. No need of power to lift and pressurize, and zero energy consumption. (electric valve switch energy consumption can be ignored basically)
3. The water can be directly recycled without personnel management.
4. The outdoor direct-buried design does not need to additionally arrange a machine room and does not occupy the building space.
5. And a clean water tank is not required to be arranged, so that the initial investment is reduced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The rainwater treatment and recycling system is characterized in that: the rainwater collecting and purifying device sequentially comprises a safe diversion well (110), a rainwater flow abandoning well (220), an underground purifying integrated machine (330) and a rainwater storage tank (440), one end of the safe diversion well (110) is connected with a rainwater collecting pipe (7), the other end of the safe diversion well (110) is connected with a rainwater collecting pipe (8), a rainwater flow abandoning pipe (9) is transversely arranged in the safe diversion well (110), a rainwater flow abandoning device (1) is arranged in the rainwater flow abandoning well (220), one end of the rainwater flow abandoning well (220) is connected with the rainwater collecting pipe (8) of the safe diversion well (110), the other end of the rainwater flow abandoning well (220) is connected with a collecting pipeline (10), the collecting pipeline (10) is connected to an upper connecting pipe on one side of the underground purifying integrated machine (330), and a connecting pipe on the lower part of the other side of the underground purifying integrated machine (, set up PP retaining module (2) in the middle of rainwater cistern (440), install sludge discharge pump (6) and retrieval and utilization pump (5) respectively in rainwater cistern (440) of PP retaining module (2) both sides.
2. The rainwater treatment and recycling system according to claim 1, wherein: the sludge pump (6) is connected into a downstream rainwater well through a communication pipeline (18), and the recycling pump (5) is connected into a rainwater recycling pipe network through another communication pipeline (19).
3. The rainwater treatment and recycling system according to claim 1, wherein: and a water quality sensor (13) is arranged in the safe diversion well (110).
4. The rainwater treatment and recycling system according to claim 1, wherein: the rainwater flow abandoning device (1) comprises a shell (103), a grid (101) and an electric actuator (102), wherein the grid (101) is arranged in the front end of the shell (103) of the rainwater flow abandoning device (1).
5. The rainwater treatment and recycling system according to claim 4, wherein: the electric actuator (102) is an electric butterfly valve.
CN202010671546.5A 2020-07-13 2020-07-13 Rainwater treatment and recycling system Pending CN111691526A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010671546.5A CN111691526A (en) 2020-07-13 2020-07-13 Rainwater treatment and recycling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010671546.5A CN111691526A (en) 2020-07-13 2020-07-13 Rainwater treatment and recycling system

Publications (1)

Publication Number Publication Date
CN111691526A true CN111691526A (en) 2020-09-22

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ID=72485433

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010671546.5A Pending CN111691526A (en) 2020-07-13 2020-07-13 Rainwater treatment and recycling system

Country Status (1)

Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113638481A (en) * 2021-09-02 2021-11-12 江苏山水环境建设集团股份有限公司 Buried integrated rainwater recovery system and construction method thereof
CN114837282A (en) * 2022-05-17 2022-08-02 广东北控环保装备有限公司 Integrated intelligent intercepting well system and using method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113638481A (en) * 2021-09-02 2021-11-12 江苏山水环境建设集团股份有限公司 Buried integrated rainwater recovery system and construction method thereof
CN114837282A (en) * 2022-05-17 2022-08-02 广东北控环保装备有限公司 Integrated intelligent intercepting well system and using method

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