CN103343570B - Flow combined system regulating storage tank real-time control system and control method thereof - Google Patents
Flow combined system regulating storage tank real-time control system and control method thereof Download PDFInfo
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- CN103343570B CN103343570B CN201310309039.7A CN201310309039A CN103343570B CN 103343570 B CN103343570 B CN 103343570B CN 201310309039 A CN201310309039 A CN 201310309039A CN 103343570 B CN103343570 B CN 103343570B
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Abstract
The invention discloses a flow combined system regulating storage tank real-time control system and method. The method comprises the following steps that a control platform obtains water flow turbidity information and flow information of a flow combined system sewage conduit and water flow turbidity information and liquid level information of a regulating storage tank in real time and carries out judging processing on the information; the control platform carries out coordination control on each electric valve and a water pump according to judging results, water inlet positions, water outlet positions and overflow positions of the regulating storage tank are flexibly controlled, and direct overflowing pollution on receiving water from severely-polluted sewage is avoided. Priority processing on sewage with high load in a flow combined system drainage system is effectively achieved through flow and turbidity control and regulating storage, and meanwhile cutting storage or processing or using or discharging is carried out on lightly-polluted water in a flow combined system pipeline, and flow combined system overflowing pollution is effectively lowered.
Description
Technical field
The present invention, about a kind of combined system storage pond real-time control system and control method thereof, particularly relates to the combined system storage pond real-time control system controlled based on flow and turbidity and a control method thereof.
Background technology
Along with the continuous quickening of urbanization process and the impact of mankind's activity, city Permeable stratum area significantly increases, natural hydrologic cycle process is made to receive material impact, rainwash and peak flow obviously increase, peak value time of origin in advance etc., these make Urban Hydrologic circulation be damaged, the risk that urban flooding occurs increases, combined sewer overflow event emerges in multitude, particularly in China, heavy rain causes drainage pipeline networks overflow event constantly to occur in recent years, combined sewer overflow pollutes and brings serious pollution to water body, have a strong impact on resident living and brought huge economic loss.
Pollutants a large amount of in closure option, is directly discharged into receiving water body if unprocessed, not only directly affects receiving water body water quality, also may make water body generation eutrophication and destroy aquatic ecosystem.Although China's newly built city district unwatering system adopts the dirty separate system of rain, many old towns are still confluence of rainwater and sewage systems.Due to the restriction of a lot of condition, it is substantially impossible that the combined system in some areas changes separate system, in this case, how to control combined sewer overflow and pollute and become one of key subjects of the water environment improvement that the many cities of China face.
Combined drainage system runoff pollution degree comparatively separate system is serious, and ducted sediment can move by corroding or washing away between flush period, is that combined sewage pollutes main source.Pipeline sediment is mainly derived from daily sewage, and because daily effluent flow rate is lower, the sedimentation of suspension in sewage is in duct bottom, and in pipeline, the microorganism of raised growth is also the sedimental source of pipeline simultaneously.Existing researcher adopts diverse ways to estimate combined system drainage system pipe sediment pollution contribution rate, Gromaim etc. show the monitoring result of 3l field rainfall in Paris, pipeline sediment SS(dust, suspension), COD(chemical oxygen demand (COD), ChemicalOxygenDemand), BOD(biochemical oxygen demand or bod, Biochemical Oxygen Demand) contribution rate be respectively 40%-80%, 25%-70% and 30%-80%.In June, 2009 measures city, Beijing storm sewer runoff to have paper to point out in addition, and result SS concentration is up to 2200mg/L.Different with monitoring method owing to calculating, and the area of different study area, underlying surface type, pipeline status difference are larger, different study the result difference to some extent drawn, but can it is clear that pipeline sediment is important pollution source in combined drainage system runoff pollution.SS a large amount of in sediment, us can be made can to regulate and store process to sewage by SS in monitoring sewage, but, nonetheless, the problems such as efficiency is low, storage pond capacity utilization is low that existing combined system pipeline exists pollution load of overflow, storage pond dams, therefore, the combined sewer overflow storage pond real-time control method controlled based on flow and turbidity arises at the historic moment.
Summary of the invention
For overcoming the deficiency that above-mentioned prior art exists, the fundamental purpose of the present invention is to provide a kind of combined system storage pond real-time control system and control method thereof, controlled by flow and turbidity and regulate and store the sewage priority processing effectively realizing dividing load higher part in combined drainage system, simultaneously to interflow tubing giving sufficient strength in pollute lighter water carry out cut store, process, utilize or discharge, effectively reduce combined sewer overflow to pollute, retaining can be exchanged utilize simultaneously, saving water resource to a certain extent, alleviates town water anxiety etc.
For reaching above-mentioned and other object, the present invention proposes a kind of combined system storage pond real-time control system, and comprise combined sewer pipeline, storage pond and sewage treatment plant, it is characterized in that, this system also comprises:
First online turbidity meter and flow measurement device, be arranged at this combined sewer pipeline apart from this storage pond water inlet entrance distance L place, for Real-Time Monitoring this combined sewer water flow in pipeline turbidity and flow information, and send the information of monitoring to parametric controller;
Storage pond water inlet pipe and storage pond rising pipe, for this combined sewer pipeline leads to pipeline section of this storage pond, run-down pipe behind run-down pipe and storage pond pond before this storage pond water inlet pipe and storage pond rising pipe have storage pond pond;
Second online turbidity meter and liquid level emasuring device, is arranged in this storage pond, for current turbidity and liquid level information in this storage pond of Real-Time Monitoring, and is sent to parametric controller;
Parametric controller, by carrying out judgement process to the current turbidity obtained, flow and liquid level information, when there is processing power in this sewage treatment plant, control the sewage of heavy contamination in this combined sewer pipeline preferentially to be delivered to the process of this sewage treatment plant, and when this sewage treatment plant's non-processor ability, the position of the water inlet of this storage pond of flexible control and water outlet and overflow, avoids the direct overflow of the sewage of heavy contamination to bring pollution to receiving water body.
Further, this combined sewer pipeline, this storage pond water inlet pipe and this storage pond rising pipe are equipped with the first motorized valve, the second motorized valve and the 3rd motorized valve respectively, and this first motorized valve, this second motorized valve and the 3rd motorized valve are controlled by this parametric controller.
Further, establish unwatering pump and ball float facility in this storage pond, this second online turbidity meter and this liquid level emasuring device are arranged on this ball float.
Further, this parametric controller, according to this first online turbidity meter, this second online turbidity meter, this liquid level emasuring device and this flow measurement device feedack, controls the position of the water inlet of storage pond, water outlet and overflow by record, the keying that processes those information and then control this first motorized valve, this second motorized valve, the 3rd motorized valve and water pump.
Further, this storage pond water delivering orifice is portable outlet, and its exit position is synchronous with this ball float, can move up and down with liquid level lifting in this storage pond.
Further, tide gate is equipped with in the end that before this pond, behind run-down pipe and this pond, run-down pipe enters receiving water body.
Further, before this storage pond water inlet pipe, this pond, behind run-down pipe, this storage pond rising pipe, this pond, run-down pipe all adopts adverse grade paving mode, and the gradient is identical with this combined sewer pipeline.
Further, this first online turbidity meter and this second online turbidity meter are online turbidimeter, and this liquid level emasuring device is liquid level gauge, and this flow measurement device is flowmeter.
For reaching above-mentioned and other object, the present invention also provides a kind of combined system storage pond real-time control method, comprises the steps:
Step one, the current turbidity information of the current turbidity information of parametric controller Real-time Obtaining combined sewer pipeline, flow information and storage pond and liquid level information, and judgement process is carried out to it;
Step 2, when there is processing power in sewage treatment plant, this parametric controller in judge this storage pond regulate and store volume time, the sewage controlling this combined sewer water flow in pipeline turbidity to be greater than a preset value sends into sewage treatment plant, and sewage current turbidity being less than preset value sends into this storage pond; And in judge storage pond without regulate and store volume time, the sewage that this combined sewer water flow in pipeline turbidity is greater than this storage pond current turbidity is sent into this sewage treatment plant, the water that this combined sewer water flow in pipeline turbidity is less than this storage pond current turbidity is sent into this storage pond, and by water higher for turbidity in this storage pond discharged to sewage treatment plant;
Step 3, when sewage treatment plant's non-processor ability, this parametric controller in judge this storage pond regulate and store volume time, control the ducted sewage of this combined sewer and all retain and enter this storage pond; In judge this storage pond without regulate and store volume time, the sewage that this parametric controller controls current turbidity on this combined sewer pipeline to be greater than this storage pond current turbidity enters storage pond, after liquid diluting in this storage pond, overflow enters receiving water body, and the sewage simultaneously current turbidity on this combined sewer pipeline being less than this storage pond current turbidity directly overflows to receiving water body.
Further, in step 2, when this storage pond regulates and stores volume, if the current turbidity of this combined sewer pipeline is greater than this preset value, the first motorized valve is opened in the control of this parametric controller output signal, close the second motorized valve and the 3rd motorized valve, water pump does not run, combined sewer enters this sewage treatment plant, if the current turbidity of this combined sewer pipeline is less than this preset value, this parametric controller is according to the distance of flow information and flow measurement device and this storage pond entrance, calculate the time T that sewage arrives this storage pond water inlet pipe entrance, when T time, output signal controls to close this first motorized valve and the 3rd motorized valve, open this second motorized valve, water air pump inoperative, in combined system pipeline, sewage enters storage pond, when this storage pond without regulate and store volume time, if the current turbidity of this combined sewer pipeline is greater than this storage pond current turbidity, this the first motorized valve is opened in the control of this parametric controller output signal, close the second motorized valve and the 3rd motorized valve, water pump does not run, this combined system conduit wastewater enters sewage treatment plant, if the current turbidity of combined sewer pipeline is less than this storage pond current turbidity, this parametric controller is according to the distance of flow information and flow measurement device and this storage pond entrance, calculate the time T that sewage arrives this storage pond water inlet pipe entrance, control when T time to close this first motorized valve, open this second motorized valve and the 3rd motorized valve, start water pump simultaneously, the relatively low water of combined sewer pipeline turbidity enters this storage pond, the sewage that in this storage pond, turbidity is higher is simultaneously discharged to sewage treatment plant.
Further, in step 3, when storage pond regulates and stores volume, this parametric controller output signal controls closedown first motorized valve and the 3rd motorized valve, open the second motorized valve, water air pump inoperative, the sewage of this combined sewer pipeline all retains and enters this storage pond, when this storage pond without regulate and store volume time, if the current turbidity of combined sewer pipeline is greater than the current turbidity of this storage pond, this parametric controller is according to the distance of flow information and flow measurement device and this storage pond entrance, calculate the time T that sewage arrives this storage pond water inlet pipe entrance, closedown first motorized valve and the 3rd motorized valve is controlled when time T, open the second motorized valve, open water pump simultaneously, on combined sewer pipeline, sewage enters storage pond, after liquid diluting in storage pond, overflow enters receiving water body, if the current turbidity of this combined sewer pipeline is less than the current turbidity of this storage pond, this parametric controller controls to close this first motorized valve of motorized valve, this second motorized valve and the 3rd motorized valve, water air pump inoperative, in this combined sewer pipeline, sewage is without storage pond, directly overflow to receiving water body.
Compared with prior art, a kind of combined system storage pond real-time control system of the present invention and control method thereof by setting up storage pond on combined system pipeline, and the sewage priority processing effectively realizing dividing load higher part in combined drainage system that controlled by flow and turbidity and regulate and store, simultaneously to interflow tubing giving sufficient strength in pollute lighter water carry out cut store, process, utilize or discharge, effectively reduce combined sewer overflow to pollute, retaining can be exchanged utilize simultaneously, saving water resource to a certain extent, alleviate town water anxiety etc., the present invention is applicable to the run-off system of confluence of rainwater and sewage, collaborate formula sewer pipe and overflow controlling in real time to reduce CSO() in effect remarkable.
Accompanying drawing explanation
Fig. 1 is the system architecture schematic diagram of a kind of combined system storage pond of the present invention real-time control system;
Fig. 2 is the flow chart of steps of a kind of combined system storage pond of the present invention real-time control method;
Fig. 3 is the control flow chart of the preferred embodiment of a kind of combined system storage pond of the present invention real-time control method;
Fig. 4 is the programmed control detail drawing of the preferred embodiment of Fig. 3.
Embodiment
Below by way of specific instantiation and accompanying drawings embodiments of the present invention, those skilled in the art can understand other advantage of the present invention and effect easily by content disclosed in the present specification.The present invention is also implemented by other different instantiation or is applied, and the every details in this instructions also can based on different viewpoints and application, carries out various modification and change not deviating under spirit of the present invention.
Fig. 1 is the system architecture schematic diagram of a kind of combined system storage pond of the present invention real-time control system.As shown in Figure 1, a kind of combined system storage pond of the present invention real-time control system, at least comprises: combined sewer pipeline (main), sewage, storage pond 10, sewage treatment plant 11 and parametric controller 12.
Wherein storage pond 10 is arranged on combined system pipeline, apart from the storage pond 10 entrance L place that intakes, the first online turbidity meter and flow measurement device is housed at combined sewer main, for Real-Time Monitoring combined system water flow in pipeline turbidity and flow information, and send information to parametric controller 12, in present pre-ferred embodiments, first online turbidity meter is online turbidimeter A, flow measurement device is flowmeter, the pipeline section leading to storage pond 10 is had (to comprise storage pond water inlet pipe in main, storage pond rising pipe), run-down pipe behind run-down pipe and storage pond pond before storage pond water inlet and rising pipe have storage pond pond, the second online turbidity meter and liquid level emasuring device is provided with in storage pond 10, for detecting current turbidity and liquid level information in storage pond in real time, and sent to parametric controller 12, in present pre-ferred embodiments, second online turbidity meter is online turbidimeter B and liquid level gauge, parametric controller 12 is by the current turbidity to acquisition, flow and liquid level information carry out judgement process, when there is processing power in sewage treatment plant 11, control that the sewage of heavy contamination in combined sewer main is preferentially delivered to sewage treatment plant 11 to process, and when sewage treatment plant 11 non-processor ability, the position of flexible control storage pond 10 water inlet and water outlet and overflow, the direct overflow of the sewage of heavy contamination is avoided to bring pollution to receiving water body.
In present pre-ferred embodiments, tide gate is equipped with in the end that before pond, behind run-down pipe and pond, run-down pipe enters receiving water body, main, storage pond water-in and water-out pipeline section are all equipped with motorized valve, be respectively motorized valve 1,2,3(is respectively the first motorized valve M1, second motorized valve M2 and the 3rd motorized valve M3), motorized valve 1,2,3 is controlled by parametric controller 12.Before storage pond water inlet pipe, pond, behind run-down pipe, storage pond rising pipe, pond, run-down pipe all adopts adverse grade paving mode, and gradient i is identical with combined sewer main.Have unwatering pump and ball float facility in storage pond 10, ball float is equipped with online turbidimeter B and liquid level gauge, storage pond water delivering orifice is portable outlet, and namely exit position is synchronous with ball float, can move up and down with liquid level lifting in storage pond.Online turbidimeter A, B, liquid level gauge and flowmeter are sent to parametric controller using turbidity, liquid level and flow information as input signal respectively, parametric controller 12 takes into account flowmeter feedack according to online turbidimeter A, B, liquid level, is controlled the position of the water inlet of storage pond, water outlet and overflow by the keying judging these information of process and then control motorized valve 1,2,3 and water pump.
Fig. 2 is the flow chart of steps of a kind of combined system storage pond of the present invention real-time control method.As shown in Figure 2, a kind of combined system storage pond of the present invention real-time control method, comprises the steps:
Step 201, parametric controller Real-time Obtaining main current turbidity information, flow information and storage pond current turbidity information and liquid level information, and judgement process is carried out to it;
Step 202, when there is processing power in sewage treatment plant, in judge storage pond regulate and store volume time, the sewage that parametric controller controls current turbidity in main to be greater than a preset value sends into sewage treatment plant, and sewage current turbidity being less than preset value sends into storage pond; And in judge storage pond without regulate and store volume time, sewage current turbidity in main being greater than storage pond current turbidity sends into sewage treatment plant, water current turbidity in main being less than storage pond current turbidity sends into storage pond, and by water higher for turbidity in storage pond discharged to sewage treatment plant, in the present invention, by liquid level information, parametric controller judges whether storage pond regulates and stores volume;
Step 203, when sewage treatment plant's non-processor ability, parametric controller in judge storage pond regulate and store volume time, the parametric controller sewage controlled in combined sewer main all retains and enters storage pond; In judge storage pond without regulate and store volume time, the sewage that parametric controller controls current turbidity on combined sewer main to be greater than storage pond current turbidity enters storage pond, after liquid diluting in storage pond, overflow enters receiving water body, and the sewage that current turbidity on combined sewer main is less than storage pond current turbidity is directly overflowed to receiving water body.
Fig. 3 is the control flow chart of the preferred embodiment of a kind of combined system storage pond of the present invention real-time control method, and Fig. 4 is the programmed control detail drawing of the preferred embodiment of Fig. 3.Below cooperation Fig. 3 and Fig. 4 is described further the preferred embodiment of the present invention.First between flush period, in combined system pipeline, flow can change in time and change, next considers initial rainfall, rainwash pollution, the sedimental impact of pipeline etc., combined system water flow in pipeline turbidity also can change in time and change, online turbidimeter on combined sewer pipeline and in storage pond can distinguish Real-Time Monitoring current turbidity change wherein, and by real-time control system, these changes is transferred to parametric controller.Specifically, parametric controller obtains online turbidimeter A numerical value Ta(online turbidimeter A reading in real time), online turbidimeter B numerical value Tb(online turbidimeter B reading), flowmeter numerical value and liquid level information, according to the volume △ V that regulates and stores of liquid level information acquisition storage pond, and judge process below doing:
(1) when there is processing power in sewage treatment plant (WWTP) (
, Q1 is pipeline flow, and Q2 is sewage treatment plant's flow)
1. storage pond is regulated and stored volume (△ V>0)
If online turbidimeter A numerical value Ta> preset value, motorized valve 1 is opened in the control of parametric controller output signal, and close motorized valve 2,3, water pump does not run, and combined sewer enters sewage treatment plant (WWTP).In Fig. 4, M1, M2, M3 are respectively motorized valve 1, motorized valve 2 and motorized valve 3, M is water pump.
If turbidimeter A numerical value Ta< preset value, parametric controller is according to flow rate meter feedback information (flow information) and its distance L apart from storage pond entrance, calculate the time T that sewage arrives storage pond water inlet pipe entrance, when T time, output signal controls to close motorized valve 1,3, open motorized valve 2, water air pump inoperative, in combined system pipeline, sewage enters storage pond.
2. storage pond is without volume of regulating and storing (△ V=0)
If online turbidimeter A numerical value is greater than online turbidimeter B numerical value, i.e. Ta>Tb, motorized valve 1 is opened in the control of parametric controller output signal, and close motorized valve 2,3, water pump does not run, and combined system conduit wastewater enters sewage treatment plant (WWTP).
If online turbidimeter A numerical value is less than online turbidimeter B numerical value, i.e. Ta<Tb, parametric controller is according to the gauge data of flowmeter and its distance L apart from storage pond entrance, calculate the time T that sewage arrives storage pond water inlet pipe entrance, control when T time to close motorized valve 1, open motorized valve 2,3, start water pump simultaneously, the relatively low water of combined system pipeline turbidity enters storage pond, and the sewage that in storage pond, turbidity is higher is simultaneously discharged to sewage treatment plant.
(2) when sewage treatment plant (WWTP) non-processor ability (
)
1. storage pond is regulated and stored volume (△ V>0)
Parametric controller controls to close motorized valve 1,3, and open motorized valve 2, water air pump inoperative, combined system conduit wastewater all retains and enters storage pond.
2. storage pond is without volume of regulating and storing (△ V=0)
If online turbidimeter A numerical value is greater than turbidimeter B numerical value, i.e. Ta>Tb, parametric controller is according to flowmeter numerical value, control when time T to close motorized valve 1,3, open motorized valve 2, open water pump, on combined system pipeline, sewage enters storage pond simultaneously, and after liquid diluting in storage pond, overflow enters receiving water body.
If turbidimeter A numerical value is less than turbidimeter B numerical value, i.e. Ta<Tb, control system controls to close motorized valve 1,2,3, and water air pump inoperative, in combined system pipeline, sewage is without storage pond, namely directly overflows to receiving water body.
In sum, a kind of combined system storage pond real-time control system of the present invention and control method thereof by setting up storage pond on combined system pipeline, and the sewage priority processing effectively realizing dividing load higher part in combined drainage system that controlled by flow and turbidity and regulate and store, simultaneously to interflow tubing giving sufficient strength in pollute lighter water carry out cut store, process, utilize or discharge, effectively reduce combined sewer overflow to pollute, retaining can be exchanged utilize simultaneously, saving water resource to a certain extent, alleviate town water anxiety etc., the present invention is applicable to the run-off system of confluence of rainwater and sewage, collaborate formula sewer pipe and overflow controlling in real time to reduce CSO() in effect remarkable.
Compared with prior art, the present invention has following beneficial effect:
(1) effectively control combined sewer overflow to pollute, operational management is simple.
The control of combined sewer overflow is a systematic engineering of business, not only has requirement to water rate control, also has requirement to water quality.The present invention is when there is processing power in sewage treatment plant, higher for SS sewage is preferentially delivered to sewage treatment plant's process, the sewage that SS is lower within it stops, when sewage treatment plant's non-processor ability, combined sewer retained or by reasonably selecting the position of overflow to reduce the harm of combined sewer overflow pollution to receiving water body, also can purify water simultaneously.Storage pond has certain capacity to store, dilute sewage and it need not be made to enter channel immediately, cause pollution load of overflow, in storage pond SS precipitation in also can carry the pollutants such as certain N, P, this has certain effect to reduction pollutant burden, and while reduction pollutant emission, also can reduce the concentration of pollutant.On the other hand, the present invention is based on flow and turbidity controls, simple to operate, control flexibly, maintenance management is convenient, make storage pond tackle combined sewer overflow more efficiently to pollute, also simple precipitation process is carried out to the combined sewage retained while potential or imminent combined sewer overflow pollution is dammed, avoid the overflowing rain water containing a large amount of pollutant directly to enter water body.
(2) make full use of and stagnantly store space, increase the function of storage pond
The present invention can selectively regulate and store to current, and again can be real-time in process of simultaneously regulating and storing water lighter for pollution of surface after precipitation be discharged, makes the stagnant space that stores of storage pond be fully utilized.It makes storage pond from single memory function of regulating and storing, and being increased to regulates and stores stores with process and use, forms integrated control measure.
(3) reduce unwatering system expense, have certain place to go effect to sediment in drainage pipeline networks.
The rain dirt shunting of current many cities is not thorough, the size of drainage pipeline and construction cost can be reduced thus reduce the investment of pipeline network construction by the combined system storage pond real-time control method that controls of Appropriate application flow and turbidity in sewerage pipeline network, especially, when drainage pipeline is longer and adopt the working method of run by gravity, this effect is more remarkable.When needs drainage pumping plant, the scale of pumping plant can also be reduced.When there is sediment in pipeline, current scour pipeline, when sediment is moved with current, the present invention can effectively retain this part current, reduces the harm brought by the sedimental existence of pipeline.
(4) improve the anti-load impact ability of Sewage Plant, improve discharge water quality, protection receiving water body, thus improve urban water-body environment.
The combined sewage dammed is carried out process of regulating and storing by the present invention, the dirty mixed water overflow of part rain also can enter storage pond, the reducing at linear flow rate of sewage treatment plant during such rainfall peak, processing power meets the demands, and simultaneously also avoids the overflowing rain water containing a large amount of pollutant directly to enter water body.Not only can alleviate impact load, ensure the treatment effect of Sewage Plant, combined closure system can be improved again, reduce the pollution of combined sewage discharge to water body, thus improve urban water-body environment.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any those skilled in the art all without prejudice under spirit of the present invention and category, can carry out modifying to above-described embodiment and change.Therefore, the scope of the present invention, should listed by claims.
Claims (9)
1. a combined system storage pond real-time control system, comprises combined sewer pipeline, storage pond and sewage treatment plant, it is characterized in that: this system also comprises
First online turbidity meter and flow measurement device, be arranged at this combined sewer pipeline apart from this storage pond water inlet entrance distance L place, for Real-Time Monitoring this combined sewer water flow in pipeline turbidity and flow information, and send the information of monitoring to parametric controller;
Storage pond water inlet pipe and storage pond rising pipe, for this combined sewer pipeline leads to pipeline section of this storage pond, run-down pipe behind run-down pipe and storage pond pond before this storage pond water inlet pipe and storage pond rising pipe have storage pond pond;
Second online turbidity meter and liquid level emasuring device, is arranged in this storage pond, for current turbidity and liquid level information in this storage pond of Real-Time Monitoring, and is sent to parametric controller;
Parametric controller, by carrying out judgement process to the current turbidity obtained, flow and liquid level information, when there is processing power in this sewage treatment plant, control the sewage of heavy contamination in this combined sewer pipeline preferentially to be delivered to the process of this sewage treatment plant, and when this sewage treatment plant's non-processor ability, the position of the water inlet of this storage pond of flexible control and water outlet and overflow, avoids the direct overflow of the sewage of heavy contamination to bring pollution to receiving water body;
This combined sewer pipeline, this storage pond water inlet pipe and this storage pond rising pipe are equipped with the first motorized valve, the second motorized valve and the 3rd motorized valve respectively, and this first motorized valve, this second motorized valve and the 3rd motorized valve are controlled by this parametric controller.
2. a kind of combined system storage pond real-time control system as claimed in claim 1, is characterized in that: establish unwatering pump and ball float facility in this storage pond, and this second online turbidity meter and this liquid level emasuring device are arranged on this ball float.
3. a kind of combined system storage pond real-time control system as claimed in claim 2, it is characterized in that: this parametric controller, according to this first online turbidity meter, this second online turbidity meter, this liquid level emasuring device and this flow measurement device feedack, controls the position of the water inlet of storage pond, water outlet and overflow by record, the keying that processes those information and then control this first motorized valve, this second motorized valve, the 3rd motorized valve and water pump.
4. a kind of combined system storage pond real-time control system as claimed in claim 3, is characterized in that: this storage pond water delivering orifice is portable outlet, and its exit position is synchronous with this ball float, can move up and down with liquid level lifting in this storage pond.
5. a kind of combined system storage pond real-time control system as claimed in claim 1, is characterized in that: tide gate is equipped with in the end that before this pond, behind run-down pipe and this pond, run-down pipe enters receiving water body.
6. a kind of combined system storage pond real-time control system as claimed in claim 1, it is characterized in that: before this storage pond water inlet pipe, this pond, behind run-down pipe, this storage pond rising pipe, this pond, run-down pipe all adopts adverse grade paving mode, and the gradient is identical with this combined sewer pipeline.
7. the combined system storage pond real-time control method as described in claim 1 ~ 6 any one, comprises the steps:
Step one, the current turbidity information of the current turbidity information of parametric controller Real-time Obtaining combined sewer pipeline, flow information and storage pond and liquid level information, and judgement process is carried out to it;
Step 2, when there is processing power in sewage treatment plant, this parametric controller in judge this storage pond regulate and store volume time, the sewage controlling this combined sewer water flow in pipeline turbidity to be greater than a preset value sends into sewage treatment plant, and sewage current turbidity being less than preset value sends into this storage pond; And in judge storage pond without regulate and store volume time, the sewage that this combined sewer water flow in pipeline turbidity is greater than this storage pond current turbidity is sent into this sewage treatment plant, the water that this combined sewer water flow in pipeline turbidity is less than this storage pond current turbidity is sent into this storage pond, and by water higher for turbidity in this storage pond discharged to sewage treatment plant;
Step 3, when sewage treatment plant's non-processor ability, this parametric controller in judge this storage pond regulate and store volume time, control the ducted sewage of this combined sewer and all retain and enter this storage pond; In judge this storage pond without regulate and store volume time, the sewage that this parametric controller controls current turbidity on this combined sewer pipeline to be greater than this storage pond current turbidity enters storage pond, after liquid diluting in this storage pond, overflow enters receiving water body, and the sewage simultaneously current turbidity on this combined sewer pipeline being less than this storage pond current turbidity directly overflows to receiving water body.
8. a kind of combined system storage pond real-time control method as claimed in claim 7, it is characterized in that: in step 2, when this storage pond regulates and stores volume, if the current turbidity of this combined sewer pipeline is greater than this preset value, the first motorized valve is opened in the control of this parametric controller output signal, close the second motorized valve and the 3rd motorized valve, water pump does not run, combined sewer enters this sewage treatment plant, if the current turbidity of this combined sewer pipeline is less than this preset value, this parametric controller is according to the distance of flow information and flow measurement device and this storage pond entrance, calculate the time T that sewage arrives this storage pond water inlet pipe entrance, when T time, output signal controls to close this first motorized valve and the 3rd motorized valve, open this second motorized valve, water air pump inoperative, in combined system pipeline, sewage enters storage pond, when this storage pond without regulate and store volume time, if the current turbidity of this combined sewer pipeline is greater than this storage pond current turbidity, this the first motorized valve is opened in the control of this parametric controller output signal, close the second motorized valve and the 3rd motorized valve, water pump does not run, this combined system conduit wastewater enters sewage treatment plant, if the current turbidity of combined sewer pipeline is less than this storage pond current turbidity, this parametric controller is according to the distance of flow information and flow measurement device and this storage pond entrance, calculate the time T that sewage arrives this storage pond water inlet pipe entrance, control when T time to close this first motorized valve, open this second motorized valve and the 3rd motorized valve, start water pump simultaneously, the relatively low water of combined sewer pipeline turbidity enters this storage pond, the sewage that in this storage pond, turbidity is higher is simultaneously discharged to sewage treatment plant.
9. a kind of combined system storage pond real-time control method as claimed in claim 7, it is characterized in that: in step 3, when storage pond regulates and stores volume, this parametric controller output signal controls closedown first motorized valve and the 3rd motorized valve, open the second motorized valve, water air pump inoperative, the sewage of this combined sewer pipeline all retains and enters this storage pond, when this storage pond without regulate and store volume time, if the current turbidity of combined sewer pipeline is greater than the current turbidity of this storage pond, this parametric controller is according to the distance of flow information and flow measurement device and this storage pond entrance, calculate the time T that sewage arrives this storage pond water inlet pipe entrance, closedown first motorized valve and the 3rd motorized valve is controlled when time T, open the second motorized valve, open water pump simultaneously, on combined sewer pipeline, sewage enters storage pond, after liquid diluting in storage pond, overflow enters receiving water body, if the current turbidity of this combined sewer pipeline is less than the current turbidity of this storage pond, this parametric controller controls to close this first motorized valve of motorized valve, this second motorized valve and the 3rd motorized valve, water air pump inoperative, in this combined sewer pipeline, sewage is without storage pond, directly overflow to receiving water body.
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| CN104108776B (en) * | 2014-06-18 | 2016-05-18 | 广东柯内特环境科技有限公司 | A kind of for urban sewage pipe network exceed standard automatic regulating system and the method for water quality |
| CN107761905B (en) * | 2017-10-30 | 2021-06-08 | 武汉圣禹排水系统有限公司 | Method for collecting sewage in each zone into sewage main pipe and storage and regulation facility |
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