CN114033024A - Realize regulation pond layering drainage system based on rainwater quality of water and water level - Google Patents
Realize regulation pond layering drainage system based on rainwater quality of water and water level Download PDFInfo
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- CN114033024A CN114033024A CN202111336564.9A CN202111336564A CN114033024A CN 114033024 A CN114033024 A CN 114033024A CN 202111336564 A CN202111336564 A CN 202111336564A CN 114033024 A CN114033024 A CN 114033024A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 190
- 239000010865 sewage Substances 0.000 claims abstract description 69
- 238000004064 recycling Methods 0.000 claims abstract description 11
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 26
- 239000002352 surface water Substances 0.000 claims description 15
- 238000005086 pumping Methods 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 9
- 230000005484 gravity Effects 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 6
- 238000004062 sedimentation Methods 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 6
- 238000007667 floating Methods 0.000 claims description 5
- 239000013618 particulate matter Substances 0.000 claims description 4
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 239000010410 layer Substances 0.000 description 53
- 238000000034 method Methods 0.000 description 4
- 239000008239 natural water Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000000746 purification Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 208000034699 Vitreous floaters Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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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
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/02—Arrangement of sewer pipe-lines or pipe-line systems
-
- 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
- E03F5/107—Active flow control devices, i.e. moving during flow regulation
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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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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
- G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F2201/00—Details, devices or methods not otherwise provided for
- E03F2201/10—Dividing the first rain flush out of the stormwater flow
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F2201/00—Details, devices or methods not otherwise provided for
- E03F2201/20—Measuring flow in sewer systems
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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
- Y02A20/20—Controlling water pollution; Waste water treatment
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Sewage (AREA)
Abstract
The invention discloses a system for realizing layered drainage of a regulation and storage pool based on rainwater quality and water level, which comprises a rainwater regulation and storage pool and an automatic control system, wherein the rainwater regulation and storage pool comprises a receiving pool for containing initial rainwater and a passing pool for purifying later rainwater, the passing pool is arranged on one side of the receiving pool, the receiving pool and the passing pool are connected through a passing pool water inlet hole, the front end of the receiving pool is provided with a water inlet pipe connected with an upstream pipe network, and the tail end of the passing pool is provided with an overflow weir and a water outlet pipe connected with a downstream pipe network; the receiving pool and the passing pool are respectively connected with a receiving pool layered drainage unit and a passing pool layered drainage unit, and the automatic control system is respectively connected with the receiving pool layered drainage unit and the passing pool layered drainage unit. The invention realizes layered drainage of rainwater, fast water discharge, energy consumption reduction, sewage treatment load reduction, rainwater recycling efficiency improvement and water environment protection improvement.
Description
Technical Field
The invention particularly relates to a system for realizing layered drainage of a regulation and storage tank based on rainwater quality and water level.
Background
The sponge city is a new generation of 'rain flood management' concept, and means that the city has good 'elasticity' in the aspects of adapting to environmental changes, coping with natural disasters caused by rainwater and the like, and can be called as a 'hydro-elastic city'. The rainwater regulation and storage pool is a rainwater collection facility constructed under the concept of sponge city. The regulation and storage tank is used for intercepting initial rainwater containing floaters, suspended matters and pollutants in the rainfall period and regulating later rainwater which is easy to form peak flow. Rainwater mixed with a large amount of particles after rainfall is layered in the storage tank, wherein the rainwater is settled, the upper layer is a surface water layer rich in floating objects, the middle layer is a clear water layer, and the bottom part is a turbid water layer with high silt content.
The construction of the rainwater storage tank brings great benefits, but the same-layer homogeneous drainage of the traditional storage tank brings new problems. A drainage method is characterized in that a submersible sewage pump is used for pumping and draining all rainwater in a regulating and storing tank to a municipal sewage pipe network system, and then the rainwater is sent to a sewage treatment plant for treatment. The drainage method discharges rainwater on a surface water layer and a clear water layer together with a turbid water layer, generates larger energy consumption, and greatly increases the operation load of a sewage pipe network and the treatment load of a sewage treatment plant. One drainage method is to drain all the rainwater to the natural water body, which takes a long time and discharges muddy water with high content of silt to the natural water body to pollute the water environment. And the rainwater in the regulation and storage tank is recycled, and the surface water layer carrying a large amount of floating materials and the turbid water layer carrying a large amount of sludge bring great load to the purification treatment device, so that the difficulty of standard utilization of the recycled rainwater is increased. Therefore, it is necessary to research a drainage method for discharging rainwater layer by layer according to the quality and water level of the rainwater in the storage tank, so as to achieve the purposes of discharging water quickly, reducing energy consumption, reducing sewage treatment load, improving rainwater recycling efficiency and protecting water environment.
Disclosure of Invention
The invention aims to solve the technical problem that in order to overcome the defects in the prior art, the invention provides the regulating and storing tank layered drainage system based on the rainwater quality and the water level, which realizes layered drainage of rainwater, fast water outlet, energy consumption reduction, sewage treatment load reduction, rainwater recycling efficiency improvement and water environment protection improvement.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a system for realizing layered drainage of a regulation pool based on rainwater quality and water level comprises a rainwater regulation pool and an automatic control system, wherein the rainwater regulation pool comprises a receiving pool for containing initial rainwater and a passing pool for purifying later rainwater, the passing pool is arranged on one side of the receiving pool, the receiving pool and the passing pool are connected through a passing pool water inlet hole, the front end of the receiving pool is provided with a water inlet pipe connected with an upstream pipe network, and the tail end of the passing pool is provided with an overflow weir and a water outlet pipe connected with a downstream pipe network; the receiving pool and the passing pool are respectively connected with a receiving pool layered drainage unit and a passing pool layered drainage unit, and the automatic control system is respectively connected with the receiving pool layered drainage unit and the passing pool layered drainage unit.
According to the technical scheme, the receiving pool layered drainage unit comprises a first rainwater drainage pipeline and a second rainwater drainage pipeline which are arranged on the side wall of the receiving pool body, the first rainwater drainage pipeline is connected with a downstream rainwater pipeline, the second rainwater drainage pipeline is connected with a downstream sewage pipeline, and the inlet end of the second rainwater drainage pipeline is communicated with the bottom of the receiving pool.
According to the technical scheme, the front end of the second rainwater drainage pipeline is provided with a first submersible sewage pump for pumping and draining rainwater, the first submersible sewage pump is arranged at the bottom of the receiving pool, the first rainwater drainage pipeline is provided with a first electric valve, and the first electric valve and the first submersible sewage pump are respectively connected with the automatic control system.
According to the above technical scheme, through pond layering drainage unit include respectively with through third rainwater drainage pipe, fourth rainwater drainage pipe and the fifth rainwater drainage pipe of pond main part side wall connection, third rainwater drainage pipe links to each other with low reaches rainwater pipeline, fourth rainwater drainage pipe is used for linking to each other with rainwater retrieval and utilization processing apparatus, fifth rainwater drainage pipe links to each other with low reaches sewage pipeline, the entrance point of fifth rainwater drainage pipe and the bottom intercommunication that passes through the pond, third rainwater drainage pipe arranges in fourth rainwater drainage pipe's top.
According to the technical scheme, a second submersible sewage pump for pumping and draining rainwater is arranged at the front end of the fifth rainwater drainage pipeline, a second electric valve is arranged on the third rainwater drainage pipeline, and a third electric valve is arranged on the fourth rainwater drainage pipeline; the second submersible sewage pump, the second electric valve and the third electric valve are respectively connected with an automatic control system.
According to the technical scheme, the receiving tank and the passing tank are respectively provided with the first water quality instrument and the second water quality instrument.
According to the technical scheme, the receiving tank and the passing tank are respectively provided with the first liquid level meter and the second liquid level meter.
According to the technical scheme, the receiving pool and the passing pool are both provided with the maintenance wells, and the maintenance wells are arranged above the corresponding layered drainage units.
According to the technical scheme, when rainfall occurs, the first electric valve, the second electric valve and the third electric valve are closed, the first submersible sewage pump and the second submersible sewage pump are closed, the layered drainage mode of the regulating and storing pool is not started, the regulating and storing pool stores initial rainwater by using the receiving pool, and the rainwater enters the passing pool along the water inlet hole of the receiving pool after the receiving pool is full of water; purifying rainwater by using a passing pool, and after the passing pool is filled with water, enabling the rainwater to flow out through an overflow weir and a water outlet pipe;
when the rainfall is finished, the first liquid level meter monitors the real-time water level (h1) condition of the receiving pool, the proper height above the turbid liquid level determined by the particle sedimentation test in the receiving pool is used as the separation water level (h2) of a clear water layer and a turbid water layer, and the turbidity at the position h2 is monitored by the first water quality meter. When the turbidity of h2 does not reach the standard, the control system judges that the rainwater is not completely layered and the receiving pool does not drain water. When the turbidity of h2 reaches the standard, the control system judges that the rainwater is completely layered, and the receiving pool begins to drain water at the moment; first electric valve opens at first, and the surface water layer that quality of water is better and clear water layer rainwater is discharged to low reaches rainwater pipeline along first rainwater drainage pipe through the action of gravity. When the water level h1 in the receiving tank drops below h2, the first electric valve is closed, and the first submersible sewage pump is opened; at the moment, rainwater in a turbid water layer with poor water quality is pumped and discharged to a downstream sewage pipeline along a second rainwater drainage pipeline; when the water level h1 in the receiving tank drops to the pump stopping water level, the first submersible sewage pump is closed, and the layered drainage mode of the receiving tank is ended;
when the rainfall is finished, the second liquid level meter monitors the real-time water level (h3) passing through the tank, the proper depth below the liquid level is used as the separation water level (h4) of a surface water layer and a clear water layer according to the water quality characteristics of the rainwater, and the proper height above the turbid liquid level determined by a particulate matter sedimentation test in the tank is used as the separation water level (h5) of the clear water layer and a turbid water layer, and the turbidity at the position h5 is monitored by the first water quality meter. When the turbidity of h5 does not reach the standard, the control system judges that the rainwater is not completely layered and does not drain through the pool; when the turbidity of h5 reaches the standard, the control system judges that the rainwater is completely layered, and drainage is started through the pool at the moment. Firstly, the second electric valve is opened, and the rainwater on the surface water layer containing the floating objects is discharged to a downstream rainwater pipeline along the third rainwater drainage pipeline under the action of gravity; when the pass tank water level h3 drops below h4, the second electric valve closes and the third electric valve opens. At the moment, rainwater in the middle clear water layer with better water quality enters the rainwater recycling treatment device along the fourth rainwater drainage pipeline. When the water level h3 in the passing pool drops below h5, the third electric valve is closed, and the second submersible sewage pump is opened; at the moment, rainwater in a turbid water layer with poor water quality is pumped and discharged to a downstream sewage pipeline along the fifth rainwater drainage pipeline. When the water level h3 in the receiving tank drops to the pump-off level, the second submersible sewage pump is turned off, ending with the tank stratified drainage mode.
The invention has the following beneficial effects:
according to the invention, the layered drainage of rainwater is realized according to the quality and the level of the rainwater in the storage tank, the water is discharged quickly, the energy consumption is reduced, the sewage treatment load is reduced, the rainwater recycling efficiency is improved, and the water environment protection is improved.
Drawings
FIG. 1 is a schematic structural diagram of a system for realizing the layered drainage of a storage tank based on the quality and the level of rainwater in the embodiment of the invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view B-B of FIG. 1;
FIG. 4 is a flow chart of the operation of the system for realizing the layered drainage of the storage tank based on the quality and the level of rainwater in the embodiment of the invention;
in the figure, 1-water inlet pipe, 2-receiving tank, 3-receiving tank layered drainage unit, 4-through tank water inlet hole, 5-through tank, 6-through tank layered drainage unit, 7-overflow weir, 8-water outlet pipe, 9-manhole, 10-first liquid level meter, 11-first water quality meter, 12-second rainwater drainage pipe, 13-first electric valve, 14-first rainwater drainage pipe, 15-first submersible sewage pump, 16-second liquid level meter, 17-second water quality meter, 18-second electric valve, 19-third rainwater drainage pipe, 20-fifth rainwater drainage pipe, 21-third electric valve, 22-fourth rainwater drainage pipe, 23-second submersible sewage pump.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
Referring to fig. 1 to 4, a system for realizing layered drainage of a storage pond based on rainwater quality and water level in one embodiment of the present invention includes a rainwater storage pond and an automatic control system, the rainwater storage pond includes a receiving pond 2 for receiving initial rainwater and a passing pond 5 for purifying later rainwater, the passing pond is disposed on one side of the receiving pond, the receiving pond and the passing pond are connected by a passing pond water inlet 4, the front end of the receiving pond is provided with a water inlet pipe 1 connected with an upstream pipe network, and the tail end of the passing pond is provided with an overflow weir 7 and a water outlet pipe 8 connected with a downstream pipe network; the overflow weir 7 is arranged in the passing pool, and the water outlet pipe 8 is connected with the overflow weir 7; the receiving pool and the passing pool are respectively connected with a receiving pool layered drainage unit and a passing pool layered drainage unit, and the automatic control system is respectively connected with the receiving pool layered drainage unit and the passing pool layered drainage unit.
Furthermore, the receiving tank layered drainage unit 3 comprises a first rainwater drainage pipeline 14 and a second rainwater drainage pipeline 12 which are connected with the side wall of the receiving tank main body, the first rainwater drainage pipeline 14 is connected with a downstream rainwater pipeline, the second rainwater drainage pipeline 12 is connected with a downstream sewage pipeline, and the inlet end of the second rainwater drainage pipeline is communicated with the bottom of the receiving tank; the first rainwater drainage pipeline 14 is connected with a clear water layer of the receiving tank.
Furthermore, a first submersible sewage pump for pumping and draining rainwater is arranged at the front end of the second rainwater drainage pipeline, the first submersible sewage pump is arranged at the bottom of the receiving pool, a first electric valve is arranged on the first rainwater drainage pipeline, and the first electric valve and the first submersible sewage pump are respectively connected with the automatic control system.
Further, the through-tank layered water discharge unit 6 includes a third rainwater drainage pipeline 19, a fourth rainwater drainage pipeline 22 and a fifth rainwater drainage pipeline 20 which are connected to the through-tank main body side walls, respectively, the third rainwater drainage pipeline is connected to a downstream rainwater pipeline, the fourth rainwater drainage pipeline is connected to a rainwater reuse treatment apparatus, the fifth rainwater drainage pipeline is connected to a downstream sewage pipeline, an inlet end of the fifth rainwater drainage pipeline 20 is communicated with the bottom of the through-tank, and the third rainwater drainage pipeline 19 is disposed above the fourth rainwater drainage pipeline; the third rainwater drainage pipeline is connected with the surface water layer passing through the pool, and the fourth rainwater drainage pipeline is connected with the middle clear water layer passing through the pool.
Furthermore, a second submersible sewage pump for pumping and draining rainwater is arranged at the front end of the fifth rainwater drainage pipeline, a second electric valve is arranged on the third rainwater drainage pipeline, and a third electric valve is arranged on the fourth rainwater drainage pipeline; the second submersible sewage pump, the second electric valve and the third electric valve are respectively connected with an automatic control system.
Furthermore, water quality instruments for monitoring water quality are uniformly distributed in the receiving tank and the passing tank; a second liquid level meter 16 for monitoring the real-time water level and a second water quality instrument 17 for monitoring the water level and the water quality separated between the clear water layer and the turbid water layer are arranged in the tank.
Furthermore, liquid level meters for monitoring the water level are uniformly distributed in the receiving pool and the passing pool; a first liquid level meter 10 for monitoring real-time water level and a first water quality instrument 11 for monitoring separated water level and water quality between a clear water layer and a turbid water layer are installed in the receiving pool 2.
And furthermore, the receiving pool and the passing pool are respectively provided with a maintenance well, and the maintenance wells are arranged above the corresponding layered drainage units.
The working principle of the invention is as follows: 1. when raining, the first electric valve 13, the second electric valve 18 and the third electric valve 21 are closed, the first submersible sewage pump 15 and the second submersible sewage pump 23 are closed, the layered drainage mode of the regulation and storage pool is not started, the regulation and storage pool utilizes the receiving pool 2 to store initial rainwater, and the rainwater enters the passing pool along the water inlet hole 4 of the passing pool after the receiving pool 2 is full of water; rainwater is purified by the passing pool 5, and after the passing pool 5 is filled with water, the rainwater flows out through the overflow weir 7 and the water outlet pipe 8.
2. When the rainfall is over, the first liquid level meter 10 monitors the real-time water level (h1) condition of the receiving pool, the proper height above the turbid liquid level determined by the particle sedimentation test in the receiving pool 2 is used as the separation water level (h2) of a clear water layer and a turbid water layer, and the turbidity at the h2 position is monitored by the first water quality instrument 11. When the turbidity of h2 does not reach the standard, the control system judges that the rainwater is not completely layered and the receiving pool does not drain water. When the turbidity of h2 reaches the standard, the control system judges that the rainwater is completely layered, and the receiving tank 2 begins to drain at the moment. First, the first electric valve 13 is opened, and rainwater on the surface water layer and the clear water layer with better water quality is discharged to a downstream rainwater pipeline along the first rainwater drainage pipeline 14 under the action of gravity. When the water level h1 in the receiving tank drops below h2, the first electric valve 13 is closed and the first submersible sewage pump 15 is opened. At this time, the rainwater in the turbid water layer with poor water quality is pumped and discharged to the downstream sewage pipeline along the second rainwater drainage pipeline 12. When the receiving tank internal water level h1 drops to the pump stop water level, the first submersible sewage pump 15 is turned off, and the reception tank 2 layered drainage mode ends.
3. When the rainfall is finished, the second liquid level meter 16 monitors the real-time water level (h3) passing through the pool, the proper depth below the liquid level is used as the separation water level (h4) of a surface water layer and a clear water layer according to the water quality characteristics of the rainwater, the proper height above the turbid liquid level determined by a particulate matter sedimentation test in the pool 5 is used as the separation water level (h5) of the clear water layer and the turbid water layer, and the turbidity at the position h5 is monitored by the first water quality meter 17. When the turbidity of h5 does not reach the standard, the control system judges that the rainwater is not completely layered and does not drain through the pool. When the h5 turbidity reached the standard, the control system judged that the rainwater was completely stratified, at which time drainage through the basin 5 began. First, the second electric valve 18 is opened, and the surface layer rainwater containing the floating objects is discharged to the downstream rainwater pipeline along the third rainwater drainage pipeline 19 by gravity. When the water level h3 in the passing pool 5 drops below h4, the second electric valve 18 is closed and the third electric valve 21 is opened. At this time, the rainwater in the middle clear water layer with better water quality enters the rainwater recycling treatment device along the fourth rainwater drainage pipeline 22. When the water level h3 in the passing pool 5 drops below h5, the third electric valve 21 is closed and the second submersible sewage pump 23 is opened. The rainwater in the muddy water layer with poor water quality is pumped and discharged to the downstream sewage pipeline along the fifth rainwater drainage pipeline 20. When the water level h3 in the receiving tank 2 drops to the pump-off level, the second submersible sewage pump 23 is turned off and the stratified discharge mode through the tank 5 ends. The flow chart of the stratified water discharge control is shown in fig. 4.
In conclusion, the regulating and storing tank is provided with a liquid level meter and a water quality instrument, and can send water level and water quality signals according to the real-time water levels of the receiving tank and the passing tank in the regulating and storing tank and the water quality of the set water level so as to respectively control the discharge of the surface water layer, the clear water layer and the turbid water layer; the first rainwater drainage pipeline arranged in the regulation and storage tank can enable rainwater on the surface water layer in the receiving tank and rainwater on the clear water layer to flow into the downstream rainwater pipeline under the action of gravity, the third rainwater drainage pipeline can enable rainwater passing through the surface water layer of the receiving tank to automatically flow into the downstream rainwater pipeline under the action of gravity, a water pump is not needed for pumping and discharging the rainwater outside, the energy consumption is low, the water discharging speed is high, the discharged rainwater does not pollute natural water, and the treatment load of a sewage treatment plant can be reduced; the fourth rainwater drainage pipeline arranged in the regulation and storage tank can convey rainwater passing through the middle clear water layer in the regulation and storage tank to the rainwater recycling treatment device for treatment and purification, and the middle clear water layer in the regulation and storage tank is the rainwater subjected to precipitation, so that the concentration of solid particles is reduced, the load on the rainwater recycling treatment device is smaller, the quality standard of recycled water outlet water can be quickly reached through purification of the recycling device, and the advantage of efficient rainwater recycling utilization is shown; the second rainwater drainage pipeline and the first submersible sewage pump arranged in the regulation and storage tank can lift rainwater on a turbid water layer in the receiving tank to a downstream sewage pipeline, and the fifth rainwater drainage pipeline and the second submersible sewage pump arranged in the regulation and storage tank can lift rainwater on the turbid water layer in the receiving tank to the downstream sewage pipeline, so that water environment pollution caused by the fact that sewage with large turbidity at the bottom is discharged to a natural water body is avoided.
The above is only a preferred embodiment of the present invention, and certainly, the scope of the present invention should not be limited thereby, and therefore, the present invention is not limited by the scope of the claims.
Claims (9)
1. A system for realizing layered drainage of a regulation and storage pool based on rainwater quality and water level is characterized by comprising a rainwater regulation and storage pool and an automatic control system, wherein the rainwater regulation and storage pool comprises a receiving pool for containing initial rainwater and a passing pool for purifying later rainwater, the passing pool is arranged on one side of the receiving pool, the receiving pool and the passing pool are connected through a passing pool water inlet hole, the front end of the receiving pool is provided with a water inlet pipe connected with an upstream pipe network, and the tail end of the passing pool is provided with an overflow weir and a water outlet pipe connected with a downstream pipe network; the receiving pool and the passing pool are respectively connected with a receiving pool layered drainage unit and a passing pool layered drainage unit, and the automatic control system is respectively connected with the receiving pool layered drainage unit and the passing pool layered drainage unit.
2. The system of claim 1, wherein the receiving tank layered drain unit comprises a first rainwater drain pipe and a second rainwater drain pipe connected to a side wall of the receiving tank body, the first rainwater drain pipe being connected to a downstream rainwater pipe, the second rainwater drain pipe being connected to a downstream sewage pipe, and an inlet end of the second rainwater drain pipe being communicated with a bottom of the receiving tank.
3. The system for realizing the layered drainage of the regulation and storage pond based on the quality and the level of the rainwater as claimed in claim 2, wherein a first submersible sewage pump for pumping and discharging the rainwater is arranged at the front end of the second rainwater drainage pipeline, the first submersible sewage pump is arranged at the bottom of the receiving pond, a first electric valve is arranged on the first rainwater drainage pipeline, and the first electric valve and the first submersible sewage pump are respectively connected with the automatic control system.
4. The system for realizing the regulated storage tank based on rainwater quality and water level according to claim 1, wherein the through-tank layered drainage unit comprises a third rainwater drainage pipeline, a fourth rainwater drainage pipeline and a fifth rainwater drainage pipeline which are connected to the through-tank body side walls, respectively, the third rainwater drainage pipeline is connected to the downstream rainwater pipeline, the fourth rainwater drainage pipeline is connected to the rainwater reuse treatment apparatus, the fifth rainwater drainage pipeline is connected to the downstream sewage pipeline, an inlet end of the fifth rainwater drainage pipeline is communicated with the bottom of the through-tank, and the third rainwater drainage pipeline is disposed above the fourth rainwater drainage pipeline.
5. The system for realizing the layered drainage of the regulation and storage pond based on the quality and the level of rainwater as claimed in claim 4, wherein a second submersible sewage pump for pumping and discharging rainwater is arranged at the front end of a fifth rainwater drainage pipeline, a second electric valve is arranged on a third rainwater drainage pipeline, and a third electric valve is arranged on a fourth rainwater drainage pipeline; the second submersible sewage pump, the second electric valve and the third electric valve are respectively connected with an automatic control system.
6. The rainwater quality and water level based storage tank layered drainage system of claim 1, wherein the receiving tank and the passing tank are uniformly provided with water quality instruments for monitoring water quality.
7. The rainwater quality and water level based storage tank layered drainage system of claim 1, wherein the receiving tank and the passing tank are uniformly provided with liquid level meters for monitoring water level.
8. The rainwater quality and water level based storage and regulation pond layered drainage system of claim 1, wherein the receiving pond and the passing pond are both provided with maintenance wells, and the maintenance wells are arranged above the corresponding layered drainage units.
9. The system for realizing the stratified drainage of the storage tank based on the quality and the level of rainwater as claimed in claim 1, wherein the receiving tank stratified drainage unit comprises a first rainwater drainage pipeline and a second rainwater drainage pipeline which are connected with the side wall of the receiving tank main body, the first rainwater drainage pipeline is connected with a downstream rainwater pipeline, the second rainwater drainage pipeline is connected with a downstream sewage pipeline, and the inlet end of the second rainwater drainage pipeline is communicated with the bottom of the receiving tank;
a first submersible sewage pump for pumping and draining rainwater is arranged at the front end of the second rainwater drainage pipeline, the first submersible sewage pump is arranged at the bottom of the receiving pool, a first electric valve is arranged on the first rainwater drainage pipeline, and the first electric valve and the first submersible sewage pump are respectively connected with the automatic control system;
the through-tank layered drainage unit comprises a third rainwater drainage pipeline, a fourth rainwater drainage pipeline and a fifth rainwater drainage pipeline which are connected with the side wall of the through-tank main body respectively, the third rainwater drainage pipeline is connected with a downstream rainwater pipeline, the fourth rainwater drainage pipeline is used for being connected with the rainwater reuse treatment device, the fifth rainwater drainage pipeline is connected with a downstream sewage pipeline, the inlet end of the fifth rainwater drainage pipeline is communicated with the bottom of the through-tank, and the third rainwater drainage pipeline is arranged above the fourth rainwater drainage pipeline;
a second submersible sewage pump for pumping and draining rainwater is arranged at the front end of the fifth rainwater drainage pipeline, a second electric valve is arranged on the third rainwater drainage pipeline, and a third electric valve is arranged on the fourth rainwater drainage pipeline; the second submersible sewage pump, the second electric valve and the third electric valve are respectively connected with the automatic control system;
a first water quality instrument and a second water quality instrument are respectively distributed in the receiving tank and the passing tank;
a first liquid level meter and a second liquid level meter are respectively arranged in the receiving pool and the passing pool;
when the rain falls, the first electric valve, the second electric valve and the third electric valve are closed, the first submersible sewage pump and the second submersible sewage pump are closed, the layered drainage mode of the regulating and storing pool is not started, the regulating and storing pool stores initial rainwater by using the receiving pool, and the rainwater enters the passing pool along the water inlet hole of the passing pool after the receiving pool is full of water; after the water is fully stored in the pool, the rainwater flows out through the overflow weir and the water outlet pipe;
when the rainfall is finished, the first liquid level meter monitors the real-time water level h1 condition of the receiving pool, the proper height above the turbid liquid level determined by the particulate matter sedimentation test in the receiving pool is used as the separation water level h2 of a clear water layer and a turbid water layer, and the turbidity at the position h2 is monitored by the first water quality meter; when the turbidity of h2 does not reach the standard, the control system judges that the rainwater is not completely layered and the receiving pool does not drain water;
when the turbidity of h2 reaches the standard, the control system judges that the rainwater is completely layered, and the receiving pool begins to drain water at the moment; firstly, a first electric valve is opened, and rainwater on a surface water layer and a clear water layer with better water quality is discharged to a downstream rainwater pipeline along a first rainwater drainage pipeline under the action of gravity; when the water level h1 in the receiving tank drops below h2, the first electric valve is closed, and the first submersible sewage pump is opened; at the moment, rainwater in a turbid water layer with poor water quality is pumped and discharged to a downstream sewage pipeline along a second rainwater drainage pipeline; when the water level h1 in the receiving tank drops to the pump stopping water level, the first submersible sewage pump is closed, and the layered drainage mode of the receiving tank is ended;
when the rainfall is finished, the second liquid level meter monitors the real-time water level h3 passing through the tank, the proper depth below the liquid level is used as the separation water level h4 of a surface water layer and a clear water layer according to the water quality characteristics of the rainwater, the proper height above the turbid liquid level determined by a particulate matter sedimentation test in the tank is used as the separation water level h5 of the clear water layer and the turbid water layer, and the turbidity at the position h5 is monitored by the first water quality meter;
when the turbidity of h5 does not reach the standard, the control system judges that the rainwater is not completely layered and does not drain through the pool;
when the turbidity of h5 reaches the standard, the control system judges that the rainwater is completely layered, and drainage is started through the pool at the moment; firstly, the second electric valve is opened, and the rainwater on the surface water layer containing the floating objects is discharged to a downstream rainwater pipeline along the third rainwater drainage pipeline under the action of gravity; when the pass tank water level h3 drops below h4, the second electric valve closes and the third electric valve opens. At the moment, rainwater in the middle clear water layer with better water quality enters the rainwater recycling treatment device along the fourth rainwater drainage pipeline; when the water level h3 in the passing pool drops below h5, the third electric valve is closed, and the second submersible sewage pump is opened; at the moment, rainwater in a turbid water layer with poor water quality is pumped and discharged to a downstream sewage pipeline along a fifth rainwater drainage pipeline; when the water level h3 in the receiving tank drops to the pump-off level, the second submersible sewage pump is turned off, ending with the tank stratified drainage mode.
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| CN102182242A (en) * | 2011-04-06 | 2011-09-14 | 清华大学深圳研究生院 | Rainwater treatment system and rainwater treatment method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102182242A (en) * | 2011-04-06 | 2011-09-14 | 清华大学深圳研究生院 | Rainwater treatment system and rainwater treatment method |
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Application publication date: 20220211 |