CN112408524A - High-load processing system, method, device and equipment for pipe network regulation and storage coupling water plant - Google Patents
High-load processing system, method, device and equipment for pipe network regulation and storage coupling water plant Download PDFInfo
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Abstract
The invention relates to a high-load treatment system, method, device and equipment for a pipe network regulation and storage coupling water plant. The system comprises: pipe network monitoring regulation equipment, water plant high load treatment facility and controlgear. The method is used for respectively carrying out the accounting of the high load processing capacity of the water plant, the quality evaluation and the segmental storage volume accounting of the pipe network and the high load processing of the pipe network storage and regulation coupling water plant. By adopting the method, the equipment or the system, the time-by-time water quantity fluctuation of the water plant can be reduced in sunny days, the water plant can be ensured to stably feed water every day, the dredging maintenance of partial pipelines is realized, the reduction of overflow pollution and the full utilization of the regulation and storage volume of a pipe network can be realized to the maximum extent in rainy days, the maximum benefit of a rainwater and sewage cooperative treatment measure is brought into play, and the quality improvement and the efficiency improvement of a drainage system are quickly realized.
Description
Technical Field
The invention relates to the technical field of water environment treatment, in particular to a high-load treatment system, method, device and equipment for a pipe network regulation and storage coupling water plant.
Background
At present, the periodic task of black and odorous water treatment in China tends to be completed, and the direct discharge point source pollution is effectively controlled. Meanwhile, mixed-flow overflow pollution and combined-flow overflow pollution (hereinafter referred to as overflow pollution) caused by mixed connection and misconnection of urban rainwater and sewage pipelines become hot and difficult problems in research of the field of water environment. It is therefore important to reduce overflow contamination. At present, three technical measures of source treatment, intermediate treatment and tail end treatment are generally adopted to reduce overflow pollution. The method has the advantages that the investment intensity required for implementing the source and midway treatment measures is high, the implementation period is long, the modification investment scale of the tail-end treatment measure is small, the high-load treatment is realized by exploring the treatment allowance and potential of a sewage treatment plant, and the method is a technical measure with high investment benefit and the most obvious short-term effect.
Relevant researches show that the reduction effect of overflow pollution of the terminal treatment measures is influenced by multiple factors, and the rainfall conditions have great influence on the water quantity and the water quality of the terminal treatment measures due to the common problems of mixed misconnection, leakage and the like of a pipe network. In the northeast and the south of China, the rainfall characteristics are obviously different due to the difference of climate types. Compared with subtropical monsoon climate in the south, the temperate monsoon climate in the northeast of China has the characteristics of short rainy season, stronger seasonal variation and the like, so that the fluctuation of water inflow of a pipe network in the northeast is large, continuous high-load treatment of a rainy season sewage treatment plant in the south cannot be realized, and the intermittent high-load treatment in the northeast has large impact on a water plant, so that the stable operation of the water plant and the stable standard of effluent are difficult to ensure. At present, the problem of water fluctuation of a sewage treatment plant can be effectively solved by building a regulation and storage tank, but the regulation and storage tank is often influenced by the maximum construction area and the maximum construction depth of a site selection site in actual construction, many projects do not have the construction conditions of a large-scale regulation and storage tank, and part of urban pipe networks have a large amount of spaces for adjustable storage and utilization and need to be further excavated.
Disclosure of Invention
In view of the above, the present invention provides a high load processing system, method, apparatus and device for a pipe network storage coupling water plant to overcome the defects in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high load processing system of a pipe network regulation and storage coupling water plant comprises:
the system comprises pipe network monitoring and regulating equipment, water plant high-load processing equipment and control equipment which is respectively in communication connection with the pipe network monitoring and regulating equipment and the water plant high-load processing equipment;
pipe network monitoring regulation and storage equipment includes: the system comprises a flow meter arranged at the tail end of a pipe network, a plurality of liquid level meters arranged in a storage regulating pipe section and a pipeline storage regulating control valve; the flowmeter, the liquid level meter and the pipeline storage regulation control valve are respectively connected with the control equipment;
the high-load processing equipment of the water plant is provided with a pump station, and the pump station is connected with the control equipment.
A high-load processing method for a pipe network regulation and storage coupling water plant is applied to the control device, and comprises the following steps:
accounting the high load processing capacity of the water plant;
determining a storage pipe section by combining pipe network quality evaluation;
judging a weather scene mode of high-load treatment of the pipe network regulation and storage coupling water plant according to the high-load treatment capacity of the water plant and the regulation and storage pipe section in combination with the pre-acquired single-field accumulated rainfall, and performing sewage treatment; the weather scene mode includes: a clear day treatment mode, a small/medium rain treatment mode, and a large/heavy rain treatment mode.
Optionally, the accounting for high-load processing capacity of the water plant includes:
acquiring design parameters and historical water quality data of the sewage treatment plant;
calculating the high load processing capacity of the water plant of the sewage treatment plant by utilizing a preset water plant construction model simulation according to the design parameters and the historical water quality data;
and if the high-load processing capacity of the water plant does not meet the preset high-load processing requirement, the high-load processing capacity of the water plant is improved through upgrading and modifying measures.
Optionally, determining the storage pipe section in combination with pipe network quality evaluation includes:
acquiring the leakage of a set section of pipeline in a pipe network; the leakage amount is obtained by carrying out video monitoring and model evaluation on the pipe network by preset pipe network video monitoring equipment;
calculating the storage volume of each pipe section according to a preset pipe network model, wherein the storage volume comprises: a segmented storage volume and a terminal storage volume;
calculating the leakage regulation ratio of each pipe section according to the leakage amount and the regulation volume;
and selecting the pipe section with the leakage regulation ratio meeting the preset leakage regulation ratio standard as a regulation pipe section, and installing a pipeline regulation control valve.
Optionally, the weather scene mode is the sunny processing mode;
according to the high load handling capacity of water plant, the regulation and storage pipeline section combines the single field accumulative rainfall volume of acquireing in advance to judge the weather scene mode that the high load of pipe network regulation and storage coupling water plant was handled and carry out sewage treatment, include:
when the pre-acquired on-site accumulated rainfall is 0, entering a sunny mode;
determining a sunny day flow curve of the end of the historical pipe network according to the monitoring flow of the end of the historical pipe network; the monitoring flow at the tail end of the pipe network is obtained by monitoring a preset flowmeter;
according to the sunny day flow curve and the pipe network on-line monitoring data, the water plant treatment capacity of the sewage treatment plant on the same day is calculated;
and starting a preset pump station by taking the treatment capacity of the water plant in sunny days as a standard, and pumping the sewage of the pipe network into the sewage treatment plant for sewage treatment.
Optionally, the method further includes:
according to the requirement of dredging a pipe network, the storage control valve of the control pipeline is opened and closed, water is stored and discharged for a short time, and dredging maintenance of the downstream pipeline is realized.
Optionally, the weather scene mode is the light/medium rain processing mode;
according to the high load handling capacity of water plant, the regulation and storage pipeline section combines the single field accumulative rainfall volume of acquireing in advance to judge the weather scene mode that the high load of pipe network regulation and storage coupling water plant was handled and carry out sewage treatment, include:
entering a small/medium rain processing mode when the pre-acquired on-site accumulated rainfall is smaller than a preset rainfall threshold;
calculating the segmented storage volume of each storage regulating pipe section and the total storage volume of the pipeline according to the liquid level of the storage regulating pipe section after rain;
calculating first high-load processing time of the sewage treatment plant according to the total storage capacity and the high-load processing capacity of the water plant;
and controlling the tail end of the pipe network, the storage regulating pipe section and the sewage treatment plant to perform the high-load treatment after the rain by taking the first high-load treatment time as a standard.
Optionally, the weather scene mode is the heavy/heavy rain processing mode;
according to the high load handling capacity of water plant, the regulation and storage pipeline section combines the single field accumulative rainfall volume of acquireing in advance to judge the weather scene mode that the high load of pipe network regulation and storage coupling water plant was handled and carry out sewage treatment, include:
entering a heavy/heavy rain processing mode when the pre-acquired on-site accumulated rainfall is greater than a preset rainfall threshold;
judging whether the terminal monitoring flow of the pipe network terminal is larger than a first preset flow or not; the tail end monitoring flow is obtained by monitoring a preset flowmeter;
if the tail end monitoring flow is larger than the first preset flow, controlling all the pipeline storage regulation control valves to be opened;
when the tail end monitoring flow is smaller than a second preset flow, opening of the pipeline storage regulation control valve is adjusted according to a preset standard, and pipe network subsection storage regulation is carried out;
calculating a total storage volume according to the storage volume of each storage pipe section;
calculating second high-load processing time of the sewage treatment plant according to the total storage capacity and the high-load processing capacity of the water plant;
and controlling the tail end of the pipe network, the storage regulating pipe section and the sewage treatment plant to perform sewage treatment by taking the second high-load treatment time as a standard.
A high load processing device of a pipe network regulation and storage coupling water plant comprises:
the water plant processing capacity accounting module is used for accounting the high-load processing capacity of the water plant;
the storage pipe section determining module is used for determining a storage pipe section in combination with pipe network quality evaluation;
the sewage treatment module is used for judging a weather scene mode of high-load treatment of the pipe network regulation and storage coupling water plant according to the high-load treatment capacity of the water plant and the regulation and storage pipe section in combination with the pre-acquired single-field accumulated rainfall and carrying out sewage treatment; the weather scene mode includes: a clear day treatment mode, a small/medium rain treatment mode, and a large/heavy rain treatment mode.
A control device, comprising:
a processor, and a memory coupled to the processor;
the memory is used for storing a computer program, and the computer program is at least used for executing the high-load processing method of the pipe network regulation and storage coupling water plant;
the processor is used for calling and executing the computer program in the memory.
The technical scheme provided by the application can comprise the following beneficial effects:
disclosed in this application is a high load processing system of pipe network regulation and storage coupling water plant, includes: the system comprises pipe network monitoring and regulating equipment, water plant high-load processing equipment and control equipment which is respectively in communication connection with the pipe network monitoring and regulating equipment and the water plant high-load processing equipment; pipe network monitoring regulation equipment includes: the system comprises a flow meter arranged at the tail end of a pipe network, a plurality of liquid level meters arranged in a storage regulating pipe section and a pipeline storage regulating control valve; the flowmeter, the liquid level meter and the pipeline storage regulation control valve are respectively connected with a pipe network monitoring storage regulation device; the high-load treatment equipment of the water plant is provided with a pump station, and the pump station is connected with the pipe network monitoring and regulating equipment. According to the method, the pipe network and the sewage treatment plant are controlled to realize sewage treatment, and on the existing drainage system, the quality improvement and the efficiency improvement of the existing drainage system can be quickly realized in a short time by additionally arranging a small amount of monitoring equipment, valves and intelligent control systems, so that the method has the advantages of high investment benefit, strong universality, high investment benefit, realization in a short time, remarkable effect and strong universality; the arranged valves are fully utilized, so that the dredging maintenance of part of pipelines can be realized, the pipeline maintenance cost is saved, the dredging maintenance of part of pipelines is realized, and the pipeline maintenance and cleaning frequency is reduced; the water plant water storage device has the advantages that the water plant water storage space is utilized through the tail end pipeline in a fine day, the time-by-time water quantity fluctuation of the water plant is reduced, the water plant can stably feed water every day, the operation stability of the water plant is improved, and the daily water quantity fluctuation problem of the sewage treatment plant is relieved in a fine day. (ii) a Under the condition of no construction and regulation in rainy days, the segmented regulation and storage of the pipe network is fully coupled with the high-load treatment of the water plant, so that the reduction of overflow pollution and the full utilization of the regulation and storage volume of the pipe network are realized to the maximum extent, the land is saved, and the reduction of overflow pollution and the full utilization of the regulation and storage volume of the pipe network are realized to the maximum extent; on-line monitoring, pipe network subsection regulation and storage are linked with a water plant dispatching control system, efficient system cooperation is achieved, the utilization rate of each unit is high, and the system is efficient and cooperative.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a block diagram of a high load processing system of a network regulation and storage coupled water plant according to an embodiment of the present invention;
FIG. 2 is a flow chart of a high load processing method for a network regulation and storage coupled water plant according to an embodiment of the present invention;
FIG. 3 is a flow chart of a high load processing method for a network regulation and storage coupled water plant according to another embodiment of the present invention;
FIG. 4 is a block diagram of a high load processing apparatus of a pipe network storage coupling water plant according to an embodiment of the present invention;
fig. 5 is a block diagram of a control device provided in an embodiment of the present invention;
FIG. 6 is a block diagram of a high load processing system of a network storage coupled water plant according to another embodiment of the present invention;
fig. 7 is a standard curve diagram of the traffic at the end of the pipe network in sunny days according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Fig. 1 is a structural diagram of a high-load processing system of a pipe network storage coupling water plant according to an embodiment of the present invention. Referring to fig. 1, a pipe network regulation and storage coupling water plant high load processing system includes:
the system comprises a pipe network monitoring and regulating device 1, a water plant high-load processing device 2 and a control device 3 which is respectively in communication connection with the pipe network monitoring and regulating device 1 and the water plant high-load processing device 2;
the pipe network monitoring and regulating device 1 comprises a flowmeter M0 arranged at the tail end of a pipe network, a plurality of liquid level meters M1-Mn arranged at a regulating and storing pipe section and pipeline regulating and storing control valves G1-Gn; the flowmeter, the liquid level meter and the pipeline storage regulation control valve are respectively connected with the control device 3;
the high-load processing equipment 2 of the water plant is provided with a pump station 2.2, and the pump station 2.2 is connected with the control equipment 3.
Sewage flows into the pipe network through the pipeline 1.1 in the system, sets up n level gauges and pipeline regulation control valve in this pipe network, divide into n sections with the pipe network, sets up a flowmeter at the pipe network end. The liquid level meter is used for detecting the liquid level of the sewage of the corresponding pipe section, and the flow meter is used for detecting the liquid level and the flow at the tail end of the pipe network. Wherein level gauge, flowmeter will detect data transmission to controlgear 3, and controlgear 3 combines the rainfall to carry out the control of switching to pipeline regulation control valve. Wherein, rainfall data is obtained through a preset rainfall data interface 3.3.
Still be equipped with intelligent reposition of redundant personnel well 1.2 in the pipe network monitoring regulation equipment 1, this intelligence reposition of redundant personnel well is the conventional setting of pipe network in this field.
When a controller 3.1 in the control device 3 controls the pipeline storage control valve to be opened, sewage is discharged into the high-load treatment device 2 of the water plant through a pipeline 2.1, meanwhile, the treatment capacity of the water plant can be obtained through calculation, a preset pump station 2.2 is controlled according to the data to pump the sewage into a high-load treatment unit 2.4 through a pipeline 2.3 according to the flow, the sewage is treated, and finally, treated tail water is discharged into a storage water body or a regenerated water circulation system through a drain pipe 2.6. Wherein, the high load processing unit 2.4 is provided with a water plant real-time online monitoring system 2.5 for online monitoring, and sends the monitoring result to the controller 3.1. The water plant real-time on-line monitoring system 2.5 comprises but is not limited to an ammonia nitrogen monitor, a TN monitor, a sludge concentration monitor, a DO monitor and a temperature instrument. The selection of the specific equipment of the water plant real-time online monitoring system 2.5 is not fixed and can be determined according to the actual situation. For example, the system in the present application adopts a Supervisory Control And Data Acquisition (SCADA) system.
The specific component selection of the controller 3.1 in the control device 3 in the present application is not fixed and may depend on the actual situation. For example, the controller 3.1 may be a PLC controller, or a data acquisition and control.
The system is characterized in that a small amount of monitoring equipment, valves and intelligent control systems are additionally arranged on an existing drainage system, online monitoring, pipe network subsection regulation and storage and a water plant dispatching control system are linked, and efficient cooperation of the system is achieved. Meanwhile, the system respectively performs the accounting of the high load processing capacity of the water plant, the quality evaluation of the pipe network, the accounting of the segmented storage volume and the pipe network storage and regulation coupling high load processing corresponding to three scenes of sunny days, small/medium rain and large/heavy rain. By adopting the method, the equipment or the system, the time-by-time water quantity fluctuation of the water plant can be reduced in sunny days, the water plant can be ensured to stably feed water every day, the dredging maintenance of partial pipelines is realized, the reduction of overflow pollution and the full utilization of the regulation and storage volume of a pipe network can be realized to the maximum extent in rainy days, the maximum benefit of a rainwater and sewage cooperative treatment measure is brought into play, and the quality improvement and the efficiency improvement of a drainage system are quickly realized.
On the basis of the system embodiment, the application discloses an embodiment of a high-load processing method of a pipe network regulation and storage coupling water plant based on the system, which specifically comprises the following steps:
fig. 2 is a flowchart of a high load processing method of a pipe network storage coupling water plant according to an embodiment of the present invention. Referring to fig. 2, a high load processing method for a pipe network regulation and storage coupling water plant includes:
step 201: and (4) accounting the high-load processing capacity of the water plant.
Step 202: and determining the regulating and storing pipe section by combining pipe network quality evaluation.
Step 203: judging a weather scene mode of high-load treatment of the pipe network regulation and storage coupling water plant according to the high-load treatment capacity of the water plant and the regulation and storage pipe section in combination with the pre-acquired single-field accumulated rainfall, and performing sewage treatment; the weather scene mode includes: a clear day treatment mode, a small/medium rain treatment mode, and a large/heavy rain treatment mode.
In the method, the high load processing capacity of the water plant is firstly calculated, then the regulation and storage pipe section is determined by combining with the pipe network quality evaluation, and then the weather condition for coupling processing, namely the weather scene mode, is judged by acquiring the single-field accumulated rainfall, and the method specifically comprises the following steps: a clear day treatment mode, a small/medium rain treatment mode, and a large/heavy rain treatment mode. And according to different weather conditions, different treatment schemes are adopted for sewage treatment, wherein a clear day treatment mode adopts a scheme of pipe network tail end regulation and storage coupling sewage treatment plants for treatment, a small/medium rain treatment mode adopts a scheme of pipe network tail end and regulation and storage pipe section subsection regulation and storage coupling sewage treatment plants for treatment, and a large/heavy rain treatment mode adopts a high-load treatment scheme of the sewage treatment plants for treatment. By adopting the mode, not only is a regulation and storage pool not required to be built, but also the pipe network subsection regulation and storage can be fully coupled with the high-load treatment of the water plant in rainy days, the reduction of overflow pollution and the full utilization of the regulation and storage volume of the pipe network are realized to the maximum extent, and the land is saved.
In order to describe the method for high load processing of the pipe network regulation and storage coupled water plant in the present application in more detail based on the above embodiments, a method for high load processing of a pipe network regulation and storage coupled water plant is now disclosed based on the above embodiments. The method comprises the following specific steps:
fig. 3 is a flowchart of a high load processing method of a pipe network storage coupling water plant according to another embodiment of the present invention. Referring to fig. 3, a high load processing method for a pipe network regulation and storage coupling water plant includes:
step 301: and calculating the high load processing capacity of the water plant. The specific calculation process comprises the following steps: acquiring design parameters and historical water quality data of the sewage treatment plant; calculating the high load processing capacity Q of the water plant of the sewage treatment plant by utilizing a preset water plant construction model simulation according to the design parameters and the historical water quality dataHeight ofAnd if the high-load processing capacity of the water plant does not meet the preset high-load processing requirement, the high-load processing capacity of the water plant is improved through upgrading and modifying measures. The design parameters are design data of the sewage treatment plant, and the data can be obtained by researching and researching the corresponding sewage treatment plant or obtained by other ways. Historical water quality data is obtained by monitoring water quality monitoring equipment of a sewage treatment plant. The preset water plant construction model is constructed by professional water plant simulation software, and the professional water plant simulation software can utilize the existing sewage treatment plant simulation software, such as: biowin and GPS-X, WEST, the specific choice of simulation software is not fixed, and may be determined according to the actual situation as long as the simulation water plant function can be realized.
Step 302: and performing pipe network quality evaluation segmentation and segmented storage regulation volume accounting according to the leakage amount of the pipe network. Specifically, the leakage amount of a pipeline at a set section in a pipe network is obtained; and the leakage amount is obtained by carrying out video monitoring and evaluation on the pipe network by preset pipe network video monitoring equipment. The preset pipe network video monitoring equipment is specifically pipe network CCTV monitoring, the selection of the specific equipment is not fixed, and the shooting of the internal condition of the pipe network can be carried out for the robot with a camera moving in the pipe network, so that the damage condition of the pipe network can be known, the quality of the pipe network can be evaluated, and the leakage quantity Li of the pipe section can be obtained.
Calculating the storage volume of each pipe section according to a preset pipe network model, wherein the storage volume comprises: a staging volume and a terminal storage volume. Specifically, based on the existing pipe network data, a preset pipe network model is constructed by using professional pipe network simulation software, and the storage volume of each pipe section is calculated by using the preset pipe network model. It should be noted that the selection of the professional pipe network simulation software is not unique, and can be changed according to the technical development as long as the simulation of the regulation and storage pipe network can be realized. In the prior art, software such as SWMM, InfoWorks ICM and the like can be selected.
Calculating the leakage regulation ratio of each pipe section according to the leakage amount and the regulation volume; i.e. according to the formula
And calculating a leakage regulation ratio, wherein Li is the leakage amount of the pipe section, and Vi is the regulation volume of the pipe section.
And selecting the pipe section with the leakage regulation ratio meeting the preset leakage regulation ratio standard as a regulation pipe section, and installing a pipeline regulation control valve. Specifically, a leakage regulation ratio threshold value is set according to actual requirements, and when the leakage regulation ratio of the pipe section is smaller than the leakage regulation ratio threshold value, the pipe section is selected to be used as a regulation pipe section to be coupled with a water plant for sewage treatment. The pipeline storage regulating control valve is arranged in a pipeline network and used for dividing the pipeline network into a plurality of pipeline sections; in the implementation process of the application, a plurality of pipeline storage regulation control valves need to be arranged in the pipe network, so that the pipe network is divided into a plurality of pipe sections.
Step 303: and acquiring the single-field accumulated rainfall. The single-field accumulated rainfall is obtained through a rainfall data interface, and the rainfall data is obtained by monitoring through professional rainfall statistic equipment. Meanwhile, the data of the single-field accumulated rainfall in the application is the data under the condition that the rainfall lasts for the set time and does not exist in the set time. The specific setting of the specified time can be determined according to different seasons, different cities and the like, and the specific time limit is not fixed.
Step 304: judging whether the single-field accumulated rainfall is equal to zero or not;
step 305: and if the single-field accumulated rainfall is equal to zero, judging that the weather scene mode is the sunny processing mode. The rainfall is inevitably zero in sunny days.
Step 306: the pipe network regulation and storage is coupled with a water plant to treat sewage with high load. In a clear day treatment mode, due to the fact that no rainfall exists, the discharged sewage is only urban domestic sewage, and at the moment, the treatment can be carried out only by utilizing the pipe network tail end regulation and storage coupling sewage treatment plant.
The specific treatment process is as follows:
determining a sunny day flow curve of the end of the historical pipe network according to the monitoring flow of the end of the historical pipe network; the flow monitored at the tail end of the pipe network is obtained by monitoring a preset flowmeter. And after a sunny day flow curve is obtained, the curve is corrected by combining the instantaneous flow of the current day pipe network. Then, according to the corrected sunny day flow curve, the processing capacity of the water plant in sunny days of the sewage treatment plant on the same day is calculated; the method comprises the steps that a preset pump station is started by taking the treatment capacity of a water plant in fine days as a standard, the pump station pumps the sewage of a pipe network into the sewage treatment plant by taking the treatment capacity of the water plant in fine days for sewage treatment, time-by-time flow fluctuation is reduced, the stable operation of the water plant is guaranteed, a high-load treatment unit of the sewage treatment plant performs treatment by constant flow, the time-by-time flow fluctuation is reduced, and the stable operation of the water plant is guaranteed.
Step 307: and if the single-field accumulated rainfall is not equal to zero, judging whether the single-field accumulated rainfall is less than or equal to a preset rainfall threshold value. It should be noted that the single-field cumulative rainfall here is not equal to zero, and this means that the single-field cumulative rainfall must be greater than zero, because only rainfall is generated, i.e. the single-field cumulative rainfall cannot be smaller than zero.
Step 308: and if the single-field accumulated rainfall is less than or equal to the preset rainfall threshold, judging that the weather scene mode is the small/medium rain processing mode. The preset rainfall threshold value is obtained by calculation in combination with pipe network simulation software.
Step 309: judging whether the actual liquid levels of all the storage regulating pipe sections and the tail end of the pipe network obtained by monitoring in advance are larger than zero and smaller than a first preset control liquid level or not; this actual liquid level includes regulation pipeline section actual liquid level and terminal actual liquid level, and wherein regulation pipeline section actual liquid level is obtained by the level gauge monitoring that sets up in the pipe network, and terminal actual liquid level is obtained by setting up the flowmeter monitoring at the pipe network end. If the current weather scene mode is the small/medium rain processing mode, whether the actual liquid level of the storage pipe section and the actual liquid level at the tail end are both smaller than the first control liquid level or not needs to be preferentially judged. The first control liquid level is set manually, and the specific setting is set according to the control requirement.
If the actual liquid level is greater than zero and less than the first predetermined control level, go to step 306. The specific treatment process comprises the following steps: calculating the total storage volume according to the storage volume of each storage pipe section; adding the storage volumes of the storage pipe sections to obtain the total storage volume, namely according to a formula
Calculating a total storage volume, wherein ViIs the volume of each storage tube segment or the volume at the end of a tube segment. Then calculating first high-load processing time of the sewage treatment plant according to the total storage capacity and the high-load processing capacity of the water plant; i.e. according to the formula
Calculating a first high load processing time, wherein QHeight ofFor high load handling capacity of waterworks, QPlant (S.A.)The daily water plant treatment capacity. And controlling the tail end of the pipe network, the regulating and storing pipe section and the sewage treatment plant to perform sewage treatment by taking the first high-load treatment time as a standard. And the daily water plant treatment capacity is calculated according to a daily flow curve of the terminal of the pipe network on a sunny day. If it is actualIf the liquid level is greater than zero and less than the first preset control level, go to step 312: and entering a pipe network storage regulation mode.
Step 310: and if the weather scene mode is larger than the preset rainfall threshold, judging that the weather scene mode is the heavy/heavy rain processing mode.
Step 311: and judging whether the actual liquid level at the tail end of the pipe network is greater than a second preset control liquid level. The second preset control level is here greater than or equal to the first preset control level. It should be noted that in the heavy/heavy rain treatment mode, it is only necessary to determine whether the actual liquid level at the end of the pipe network exceeds the standard.
If the second preset control level is higher than the first preset control level, go to step 306. The method specifically comprises the following steps: judging whether the terminal monitoring flow of the pipe network terminal is larger than a first preset flow or not; the tail end monitoring flow is obtained by monitoring a preset flowmeter; and if the tail end monitoring flow is larger than the first preset flow, controlling all the pipeline storage control valves to be opened to ensure smooth drainage. Until the tail end monitoring flow is smaller than a second preset flow, opening of the pipeline storage regulation control valve is adjusted according to a preset standard, and pipe network subsection storage regulation is carried out; the preset standard can be determined according to the actual condition of the sewage amount, the corresponding control valves can be closed step by step in sequence, and the opening of the control valves can also be properly adjusted, so that the segmented regulation and storage are carried out. And calculating the total storage volume according to the storage volume of each storage pipe section, wherein the calculation of the total storage volume is the same as the calculation process of the total storage volume in the small/medium rain processing mode. Calculating second high-load processing time of the sewage treatment plant according to the total storage capacity and the high-load processing capacity of the water plant; i.e. according to the formula
Calculating a second high load processing time, wherein QHeight ofFor high load handling capacity of waterworks, QPlant (S.A.)The daily water plant treatment capacity. And acquiring the treatment capacity of the water works in the same day according to the flow curve of the tail end of the pipe network in a sunny day. And finally, controlling the tail end of the pipe network, the regulating and storing pipe section and the water inlet of the sewage treatment plant by taking the second high-load processing time as a standardAnd performing sewage treatment. If the second preset control level is less than or equal to the second preset control level, go to step 312: and entering a pipe network storage regulation mode.
By adopting the pipe section selecting mode in the embodiment, the storage adjusting pipe section can be selected according to the actual damage condition of the pipe network and the quality of the pipe network, so that the pipe section with good quality can be selected for storage adjustment, linkage of the pipe network sectional storage adjusting and water plant scheduling control system is realized, and efficient cooperation of the system is realized. Meanwhile, the scheme of pipe network regulation and storage coupling high-load treatment of the water plant under different weather conditions is introduced in detail in the embodiment, and under the condition that regulation and storage are not built in rainy days, pipe network subsection regulation and storage are fully coupled with high-load treatment of the water plant, so that overflow pollution reduction and full utilization of pipe network regulation and storage volume are realized to the maximum extent, and land is saved. The water supply system has the advantages that the utilization of the storage space of the tail end pipeline in fine days reduces the time-by-time water quantity fluctuation of the water plant, ensures the stable water supply of the water plant day by day and improves the operation stability of the water plant.
Furthermore, on the basis of the above embodiment, the present application also discloses a method for dredging a pipe network, which specifically comprises: the control pipeline regulation control valve is closed to store water, the pipeline regulation control valve is opened after the specified time, and the sewage in the pipeline flows by gravity, so that the sludge in the pipeline can be flushed by the sewage in the pipeline. The specified time can be determined according to actual needs, and the specific time is not fixed.
The method makes full use of the arranged valve, can realize dredging maintenance of partial pipelines, reduces the pipeline maintenance and cleaning frequency and saves the pipeline maintenance cost.
Corresponding to the high-load processing method for the pipe network regulation and storage coupling water plant provided by the embodiment of the invention, the embodiment of the invention also provides a high-load processing device for the pipe network regulation and storage coupling water plant. Please see the examples below.
Fig. 4 is a block diagram of a high load processing apparatus of a pipe network storage coupling water plant according to an embodiment of the present invention. Referring to fig. 4, a high load processing method for a pipe network regulation and storage coupling water plant includes:
a water plant processing capacity accounting module 401, configured to account for a high load processing capacity of a water plant;
a storage pipe section determining module 402, configured to determine a storage pipe section in combination with pipe network quality evaluation;
the sewage treatment module 403 is configured to determine a weather scene mode of high-load treatment of the pipe network regulation and storage coupling water plant according to the high-load treatment capacity of the water plant and the regulation and storage pipe section in combination with a pre-acquired single-field accumulated rainfall, and perform sewage treatment; the weather scene mode includes: a clear day treatment mode, a small/medium rain treatment mode, and a large/heavy rain treatment mode.
Wherein, the weather scene mode judgment specifically comprises: acquiring the single-field accumulated rainfall, and judging whether the single-field accumulated rainfall is equal to zero or not; if the single-field accumulated rainfall is equal to zero, judging that the weather scene mode is a sunny processing mode; if the single-field accumulated rainfall is not equal to zero, judging whether the single-field accumulated rainfall is less than or equal to a preset rainfall threshold value; if the weather scene mode is smaller than or equal to the preset rainfall threshold, judging that the weather scene mode is a small/medium rain processing mode; and if the weather scene mode is larger than the preset rainfall threshold, judging that the weather scene mode is a heavy/heavy rain processing mode.
By adopting the device, the water supply plant can reduce the time-by-time water fluctuation by utilizing the regulation and storage space of the tail end pipeline on a fine day, ensure the steady water supply of the water supply plant day and improve the operation stability of the water supply plant. Under the condition of no construction and regulation in rainy days, the segmented regulation and storage of the pipe network is fully coupled with the high-load treatment of the water plant, so that the reduction of overflow pollution and the full utilization of the regulation and storage volume of the pipe network are realized to the greatest extent, and the land is saved.
In order to more clearly introduce a hardware system for implementing the embodiment of the present invention, an embodiment of the present invention further provides a control device and a system corresponding to the method for processing a high load in a pipe network regulation and storage coupling water plant provided by the embodiment of the present invention. Please see the examples below.
Fig. 5 is a block diagram of a control device according to an embodiment of the present invention. Referring to fig. 5, a control apparatus includes:
a processor 501, and a memory 502 connected to the processor 501; the memory 502 is used for storing a computer program, and the computer program is at least used for executing the high-load processing method of the pipe network regulation and storage coupling water plant; the processor 501 is used for calling and executing the computer program in the memory 502.
In order to introduce the scheme in the present application in more detail, a liquid level meter, a pipeline storage control valve and a flow meter are taken as examples to specifically explain the sewage treatment process in the present application, and the details are as follows: FIG. 6 is a block diagram of a high load processing system of a network storage coupled water plant according to another embodiment of the present invention; fig. 7 is a standard curve diagram of the traffic at the end of the pipe network in sunny days according to an embodiment of the present invention. The tail end of the drainage system is provided with a water inlet source which is a diversion drainage system in a certain watershed in the north, and the system has a small number of mixed and staggered connections and partial confluence drainage areas.
Referring to fig. 6, the pipe network regulation and storage coupling water plant high load processing system comprises a pipe network online monitoring and storage device 1, a water plant high load processing device 2 and a control device 3 which are connected in series/in parallel. Wherein, a liquid level meter M1 and a pipeline storage control valve G1 which can monitor the liquid level of a pipe network on line are arranged at the tail end of the 1 st section of the storage regulating pipe section; a flow meter M0 capable of monitoring the flow and the liquid level of a pipe network on line is arranged at the tail end storage regulating pipe section; the flow meter M0 is connected with the intelligent diversion well 1.2 through a pipeline, the intelligent diversion well 1.2 is connected with the high-load treatment equipment 2 of the water plant through a 2.1 pipeline, and mixed water exceeding the overflow liquid level overflows through a discharge port; pipeline 2.1 links to each other with pump station 2.2, and pump station 2.2 links to each other with high load processing unit 2.4 through pipeline 2.3, sets up water works real-time on-line monitoring system 2.5 in the high load processing unit 2.4, and high load processing unit 2.4 tail water is discharged into by drain pipe 2.6 and is accomodate the water. The control device 3 comprises a PLC 3.1 and an intelligent processing terminal 3.2, the PLC 3.1 is connected with a liquid level meter M1, a water plant real-time online monitoring system 2.5, a preset rainfall data interface 3.3 and other real-time online monitoring devices, the PLC 3.1 is connected with the intelligent processing terminal 3.2, data transmitted by the online monitoring devices are stored and calculated at the intelligent processing terminal 3.2 in real time, and a feedback signal controls the opening and closing of a pipeline storage control valve G1 or regulates the water depth and the flow of a pump station 2.2, the sludge concentration of a high-load processing unit 2.4, the reflux amount, the aeration amount, the dosage and the like through the 3.1 PLC.
The working process of the high-load processing device of the pipe network storage and regulation coupling water plant is as follows, firstly, the high load of the water plant is checkedLoad handling capacity. Based on the design parameters of the existing water plant, a water plant model is constructed by using Biowin simulation software, the water plant is dynamically simulated based on historical water quality or water quality monitoring data, and the high-load processing capacity Q of the water plant is obtainedHeight of6 ten thousand tons/day, and the designed treatment capacity of the water plant is QIs provided with4.5 ten thousand tons/day. Secondly, based on the existing pipe network data, it is found that the No. 1 pipe section V1 and the tail end pipe V0 both have the regulation and storage capacity, a pipe network model is built by utilizing InfoWorks ICM pipe network simulation software, and the regulation and storage volume V of the pipe network is obtained according to the calculation result of the pipe network model0＝6200m3And the storage volume V1＝3300m3，VGeneral assembly＝9500m3. Detecting leakage (m) of two pipes according to a pipe network3Adjustment/storage (m)/h3) The ratio is less than 0.05, the requirement of the storage regulating pipe section is met, and a pipeline storage regulating control valve G1 and a flowmeter M1 are arranged at the corresponding positions of the pipeline. In the embodiment, the preset rainfall threshold H1 is 5 mm. The method for pipe network regulation and storage coupling high-load processing of three specific scenes of sunny days, small/medium rain and large/heavy rain is exemplified by three scenes respectively.
Scenario 1: firstly, a flow meter M0 obtains a flow standard curve Q of the historical pipe network end on a sunny day, as shown in fig. 7, where S1+ S2+ S3 is S4+ S5 < VGeneral assemblyDetermining that the average standard curve Q is 4.2 ten thousand tons/d according to the average standard curve Q, and combining the instantaneous flow Q of the pipe network at 0 point on the day0Correcting to calculate the daily water plant treatment capacity QPlant (S.A.)4.6 ten thousand tons/d, pump station 2.2 is handled with this flow with sewage suction sewage treatment plant, cuts down the flow fluctuation of time by time, ensures the steady operation of water plant. And by combining the dredging requirement of a pipe network, the pipeline storage regulating control valve G1 is controlled to store water for a short time, so that the dredging maintenance of the pipeline in the downstream 3km can be realized.
Scenario 2: in certain rainy days, the cumulative rainfall H of a single field is 5mm and satisfies 0<H is less than or equal to H1, after rainfall is finished for 2 hours, the practical liquid level H0-6.0M and H1-4.5M at the tail end of each storage and regulation pipe section are respectively obtained by a () flow meter M0 and a () liquid level meter M1, the actual liquid level H0 'is 6.5M at the tail end of the pipe section, H1' is 5.0M at the control liquid level of No. 1 pipe section, and the liquid levels of each storage and regulation pipe section and the tail end all meet 0<hi<hi', the storage volume of each pipe section is V0 and V1, and the total storage volume is VGeneral assembly＝9500m3Water after rainHigh load processing, throughput Q of the plantHeight of6 ten thousand tons/day, high load processing time
Scenario 3: in certain rainy days, the single-field accumulated rainfall reaches 20mm, and the single-field accumulated rainfall H is satisfied>H1, 2.5H after rainfall begins, the actual liquid level H0 of the tail end pipe network is 6.6m>When h 0' is 6.5m, the water plant starts the high load processing mode, and the processing capacity is QHeight ofNamely 6 ten thousand tons/day, the flow meter M0 monitors the flow rate to be higher than 4500M after the rainfall begins for 6 hours3And h, opening the pipeline storage control valve G1 completely, continuously carrying out high-load treatment on the sewage treatment plant, and after 12 hours of rainfall, monitoring the flow of the flow meter M0 to be lower than 4000M3Step by step, closing the pipeline storage regulating control valve G1 to realize the water storage of No. 1 pipe section and the total water regulating and storing quantity V after rainGeneral assembly＝9500m3High load treatment in post-rain water works, throughput QHeight of6 ten thousand tons/day, high load processing time
The total continuous high-load treatment time was 24.7 h.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present invention, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A high load processing system of pipe network regulation and storage coupling water plant, characterized by comprising:
the system comprises pipe network monitoring and regulating equipment, water plant high-load processing equipment and control equipment which is respectively in communication connection with the pipe network monitoring and regulating equipment and the water plant high-load processing equipment;
pipe network monitoring regulation and storage equipment includes: the system comprises a flow meter arranged at the tail end of a pipe network, a plurality of liquid level meters arranged in a storage regulating pipe section and a pipeline storage regulating control valve; the flowmeter, the liquid level meter and the pipeline storage regulation control valve are respectively connected with the control equipment;
the high-load processing equipment of the water plant is provided with a pump station, and the pump station is connected with the control equipment.
2. A high-load processing method for a pipe network storage coupling water plant, which is applied to the control device according to claim 1, and comprises the following steps:
accounting the high load processing capacity of the water plant;
determining a storage pipe section by combining pipe network quality evaluation;
according to the high-load processing capacity of the water plant and the adjustment and storage pipe section, the weather scene mode of high-load processing of the pipe network adjustment and storage coupling water plant is judged by combining the pre-acquired single-field accumulated rainfall threshold value, and sewage treatment is carried out; the weather scene mode includes: a clear day treatment mode, a small/medium rain treatment mode, and a large/heavy rain treatment mode.
3. The pipe network regulation and storage coupling water plant high load processing method according to claim 2, wherein the accounting of the water plant high load processing capacity comprises:
acquiring design parameters and historical water quality data of the sewage treatment plant;
calculating the high load processing capacity of the water plant of the sewage treatment plant by utilizing a preset water plant construction model simulation according to the design parameters and the historical water quality data;
and if the high-load processing capacity of the water plant does not meet the preset high-load processing requirement, the high-load processing capacity of the water plant is improved through upgrading and modifying measures.
4. The high-load processing method for the pipe network regulation and storage coupling water plant according to claim 2, wherein the determining of the regulation and storage pipe section in combination with the pipe network quality evaluation comprises:
acquiring the leakage of a set section of pipeline in a pipe network; the leakage amount is obtained by carrying out video monitoring and model evaluation on the pipe network by preset pipe network video monitoring equipment;
calculating the storage volume of each pipe section according to a preset pipe network model, wherein the storage volume comprises: a segmented storage volume and a terminal storage volume;
calculating the leakage regulation ratio of each pipe section according to the leakage amount and the regulation volume;
and selecting the pipe section with the leakage regulation ratio meeting the preset leakage regulation ratio standard as a regulation pipe section, and installing a pipeline regulation control valve.
5. The pipe network regulation and storage coupling water plant high-load processing method according to claim 2, wherein the weather scene mode is the sunny processing mode;
according to the high load handling capacity of water plant, the regulation and storage pipeline section combines the single field accumulative rainfall volume of acquireing in advance to judge the weather scene mode that the high load of pipe network regulation and storage coupling water plant was handled and carry out sewage treatment, include:
when the pre-acquired on-site accumulated rainfall is 0, entering a sunny mode;
determining a sunny day flow curve of the end of the historical pipe network according to the monitoring flow of the end of the historical pipe network; the monitoring flow at the tail end of the pipe network is obtained by monitoring a preset flowmeter;
according to the sunny day flow curve and the pipe network on-line monitoring data, the water plant treatment capacity of the sewage treatment plant on the same day is calculated;
and starting a preset pump station by taking the treatment capacity of the water plant in sunny days as a standard, and pumping the sewage of the pipe network into the sewage treatment plant for sewage treatment.
6. The high-load processing method of the pipe network regulation and storage coupling water plant according to claim 2, further comprising:
the control pipeline storage regulating control valve is closed to store water, the pipeline storage regulating control valve is opened after the specified time, water is stored and discharged in a short time, and dredging maintenance of the downstream pipeline is achieved.
7. The pipe network regulation and storage coupling water plant high-load processing method according to claim 2, wherein the weather scene mode is the small/medium rain processing mode;
according to the high load handling capacity of water plant, the regulation and storage pipeline section combines the single field accumulative rainfall volume of acquireing in advance to judge the weather scene mode that the high load of pipe network regulation and storage coupling water plant was handled and carry out sewage treatment, include:
entering a small/medium rain processing mode when the pre-acquired on-site accumulated rainfall is smaller than a preset rainfall threshold;
calculating the segmented storage volume of each storage regulating pipe section and the total storage volume of the pipeline according to the liquid level of the storage regulating pipe section after rain;
calculating first high-load processing time of the sewage treatment plant according to the total storage capacity and the high-load processing capacity of the water plant;
and controlling the tail end of the pipe network, the storage regulating pipe section and the sewage treatment plant to perform the high-load treatment after the rain by taking the first high-load treatment time as a standard.
8. The pipe network regulation and storage coupling water plant high load processing method according to claim 2, wherein the weather scene mode is the heavy/heavy rain processing mode;
according to the high load handling capacity of water plant, the regulation and storage pipeline section combines the single field accumulative rainfall volume of acquireing in advance to judge the weather scene mode that the high load of pipe network regulation and storage coupling water plant was handled and carry out sewage treatment, include:
entering a heavy/heavy rain processing mode when the pre-acquired on-site accumulated rainfall is greater than a preset rainfall threshold;
judging whether the terminal monitoring flow of the pipe network terminal is larger than a first preset flow or not; the tail end monitoring flow is obtained by monitoring a preset flowmeter;
if the tail end monitoring flow is larger than the first preset flow, controlling all the pipeline storage regulation control valves to be opened;
when the tail end monitoring flow is smaller than a second preset flow, opening of the pipeline storage regulation control valve is adjusted according to a preset standard, and pipe network subsection storage regulation is carried out;
calculating a total storage volume according to the storage volume of each storage pipe section;
calculating second high-load processing time of the sewage treatment plant according to the total storage capacity and the high-load processing capacity of the water plant;
and controlling the tail end of the pipe network, the storage regulating pipe section and the sewage treatment plant to perform sewage treatment by taking the second high-load treatment time as a standard.
9. A high load processing apparatus of pipe network regulation and storage coupling water plant, characterized by comprising:
the water plant processing capacity accounting module is used for accounting the high-load processing capacity of the water plant;
the storage pipe section determining module is used for determining a storage pipe section in combination with pipe network quality evaluation;
the sewage treatment module is used for judging a weather scene mode of high-load treatment of the pipe network regulation and storage coupling water plant according to the high-load treatment capacity of the water plant and the regulation and storage pipe section in combination with the pre-acquired single-field accumulated rainfall and carrying out sewage treatment; the weather scene mode includes: a clear day treatment mode, a small/medium rain treatment mode, and a large/heavy rain treatment mode.
10. A control apparatus, characterized by comprising:
a processor, and a memory coupled to the processor;
the memory is used for storing a computer program, and the computer program is at least used for executing the pipe network regulation and storage coupling water plant high-load processing method of any one of claims 2 to 8;
the processor is used for calling and executing the computer program in the memory.
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