CN111489052A - Method for carrying out intercepting drainage scheduling by utilizing water quality and water quantity - Google Patents
Method for carrying out intercepting drainage scheduling by utilizing water quality and water quantity Download PDFInfo
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Abstract
The invention relates to a method for carrying out intercepting drainage scheduling by utilizing water quality and water quantity, which comprises the following steps: firstly, carrying out investigation and reconnaissance on the whole drainage system to obtain basic data; secondly, the actual operation condition of the intercepting system in sunny days and rainy days is investigated; thirdly, establishing a closure drainage scheduling model; fourthly, water quality, water level and water quantity monitoring equipment is installed in each intercepting well and each sewage pump station, and each pump machine and each gate are remotely controlled; fifthly, making an actual scheduling scheme by using data monitored by the water quality, water level and water amount monitoring equipment and the scheduling model; and sixthly, executing a scheduling scheme, wherein the intercepting system and the drainage system are optimally scheduled, and the whole drainage process is scientifically scheduled by using the water quality and water quantity data of the intercepting system, so that the rainwater quantity is controlled from the source, the rainwater is reduced from entering the sewage system, the sewage drainage system is prevented from being overloaded, and the pollution is reduced to the river to the maximum extent.
Description
Technical Field
The invention relates to the technical field of intercepting drainage, in particular to a method for intercepting drainage scheduling by using water quality and water quantity.
Background
At present, the environmental problem is increasingly prominent, the black odor of the river system is closely related to the onshore sewage entering the river, so that the disease is in the river, the source is on the bank, in order to solve the problem of sewage entering the river, intercepting engineering is performed along the river bank line everywhere, the initial rainwater and the water of the confluence pipe network are intercepted into the sewage pipe network and are sent to a sewage plant, the total water inflow amount is calculated according to the population of a management area in fine days, the intercepted sewage can be effectively sent to the sewage plant for treatment after evaluation and modification are carried out on the sewage plant, the water amount is greatly increased in rainy days, particularly heavy rain and heavy rain, the water level in the intercepting system is mainly utilized to control the water discharge river of the intercepting system or the sewage pipe network, so that a large amount of rainwater enters the water discharge system in the middle and later periods, the water amount in the sewage discharge system is increased, the load is exceeded, a large amount of pipe network overflow and a pump, the method has the advantages that the original key part with poor water quality cannot be scheduled, a large amount of sewage overflows into a river to cause pollution, meanwhile, due to the fact that rainwater is seriously diluted in a sewage system, the water quality finally entering a sewage plant is seriously lower than the water quality requirement of treatment in the plant, the treatment process is influenced, the process frequency needing to be adjusted under different rainfall conditions is high, the effluent water quality is difficult to guarantee to reach the standard, the discharged water also causes river pollution, the final effect is that a great project is made to intercept the pollution on the riverway edge, but the pollution still enters the riverway when heavy and medium rain occurs, and secondary black and odorous riverway are caused.
In order to solve the problem of black and odorous river channels and avoid secondary black and odorous river channels, the conventional mode is to cut off the sewage along the river channels, and utilize the weir or the pump station that dams to carry the water that dams to the sewage pipe network, control the operation of weir or pump station through the water level in the system that dams, with the log raft to the sewage pipe network or arrange to the river channel.
And part of the water added after the interception is intercepted, the water amount added in the flood season is intercepted in the regulation and storage tank by designing the regulation and storage tank, and the water is discharged into a sewage drainage system after the flood season is ended and is sent to a sewage plant for treatment.
The existing intercepting system water enters the sewage drainage system and is mainly controlled by water level, the intercepting water is collected into the sewage drainage system by setting the form of pumping water of an overflow trough and a pump station, different pump flow rates are set by different water levels, and the load capacity of the maximum flow entering the sewage drainage system is simulated and calculated by using a model, but the problem that the accuracy of urban pipe network data is not enough due to the loss of basic data, the problem that the engineering problem is left after the drainage system is newly and completely changed, and the like cause that the whole system can not be simulated according to the actual state, and the actual dispatching load assessment data can not be obtained, so that the actual operation process is far different from the simulation process; the method is equivalent to evaluating the initial rainwater to obtain the initial rainwater amount and then calculating the discharge time according to the corresponding amount, avoids the defect that the previous method continuously pumps water into the sewage drainage system to a certain extent and reduces the amount of rainwater entering the sewage drainage system, but because the rainfall type is continuously changed and the influence of the water quality in the intercepting system and the factors of daily work, factory discharge and the like is continuously changed, the method cannot effectively and accurately discharge sewage into the sewage drainage system in the continuous rainfall process according to a single control mode of pumping water into the sewage drainage system or discharging water at fixed time after rainfall, and can cause a large amount of sewage to overflow to enter a river channel to pollute the river channel.
For a system with a large amount of initial rain and intercepting water, a regulation and storage tank is usually built when the intercepting system is designed, the regulation and storage tank usually controls the water of each intercepting system to enter according to the water level, and the intercepting water is not allowed to enter any more when the water level reaches the regulation and storage volume; therefore, after rainfall begins, the regulating and storing tank begins to receive water in the intercepting system until the regulating and storing tank is full, and the water which cannot be received enters a river channel; therefore, when the sewage plant has limited treatment capacity, water which cannot be treated in time can be received by the storage tank, and after rainfall is finished, the storage tank can drain water to the sewage system in a range allowed by the sewage plant through the pump station, so that a storage space is vacated and preparation is provided for next rainfall; the method is characterized in that space is used for replacing time, if the water quality and the water quantity are not controlled, the full-load operation is always carried out in the sewage system after one time of rain falls, the regulation and storage tank cannot discharge water into the sewage system, almost all the flood season time in southern and coastal cities is very long, the one-time regulation and storage tank does not discharge secondary rainfall again, the regulation and storage tank cannot discharge water outwards, after the sewage storage time is long, the regulation and storage tank becomes a septic tank, the life of surrounding residents is influenced, the next rainfall cannot play a role in regulation and storage, and a large amount of cut-off water enters a river channel to pollute the river channel.
Disclosure of Invention
The invention aims to provide a method for carrying out intercepting and drainage scheduling by utilizing water quality and water quantity, which is used for carrying out optimized scheduling on an intercepting system and a drainage system, scientifically scheduling the whole drainage process by utilizing the water quality and water quantity data of the intercepting system, finally realizing the control of the entry of rainwater quantity from the source, reducing the entry of rainwater into a sewage system, avoiding the overload of the sewage drainage system and maximally reducing the pollution to the river.
In order to solve the problems, the invention provides a method for carrying out intercepting drainage scheduling by utilizing water quality and water quantity, which comprises the following steps:
firstly, carrying out investigation and reconnaissance on the whole drainage system to obtain basic data;
secondly, the actual operation condition of the intercepting system in sunny days and rainy days is investigated;
thirdly, establishing a closure drainage scheduling model;
fourthly, water quality, water level and water quantity monitoring equipment is installed in each intercepting well and each sewage pump station, and each pump machine and each gate are remotely controlled;
fifthly, making an actual scheduling scheme by using data monitored by the water quality, water level and water amount monitoring equipment and the scheduling model;
and sixthly, executing a scheduling scheme.
Preferably, the whole drainage system comprises a cut-off system and a sewage drainage system which are connected in sequence, and the basic data obtained in the step (one) comprises:
the basic data of the intercepting system comprises
CAD (computer-aided design) images, embedding depth, pipe diameter, trend, length, material, initial intercepting inspection well and terminal intercepting inspection well of the intercepting pipe network;
intercepting the elevation, the depth, the warning line and the danger line of the inspection well;
the elevation, the depth, the gate, the pump, the grating, the warning line, the danger line and the control rule of the intercepting well;
the basic data of the sewage drainage system comprises
The burying depth, pipe diameter, direction, length, material, initial sewage inspection well and terminal sewage inspection well of the sewage pipe network;
the elevation, the depth, the warning line and the danger line of the sewage inspection well;
the elevation of a sewage pump station, the depth of a storage tank, the bottom area of the storage tank, a pump machine, a grid, a gate and a control rule;
maximum allowable incoming flow and incoming water quality requirements for a sewage treatment plant.
Preferably, in the second step, the pump and the gate in each intercepting well and each intercepting well are investigated on site to obtain the water quality, water level and water quantity of each intercepting well and the operation conditions of the corresponding pump and gate in sunny days and rainy days:
in a fine day, acquiring the water quality, water level and water quantity of each intercepting well from nine to ten am, twelve to one am, twenty to twenty pm in the evening and two to three am in the morning and the operation conditions of a corresponding pump and a corresponding gate;
in rainy days, the water quality, water level and water quantity of each intercepting well in two hours before rain, two hours after rain and six hours after rain and the operation conditions of corresponding pumps and gates are obtained.
Preferably, in the third step, the method for establishing the scheduling model includes: firstly establishing a drainage model, then acquiring the upstream and downstream relation of the whole drainage system according to the drainage model, and setting operation conditions, wherein the operation conditions comprise:
(1) the sewage conveying amount of a sewage pump station in unit time cannot exceed the maximum conveying amount;
(2) the higher the sewage concentration entering the sewage pump station in unit time is, the better the dispatching is;
(3) when a plurality of vatch basin carry sewage to downstream sewer pipe network, the priority that pollutant concentration is high is discharged.
Preferably, the method for establishing the scheduling model comprises:
and (3) establishing the drainage model on SWMM or INFOWORK according to the basic data acquired in the first step, verifying whether the running condition can generate serious risk under the corresponding rain type by inputting the rain type and the running condition investigated in the second step, applying a corresponding scheduling rule if the risk is controllable in a simulation result, and adjusting the running condition until the risk is controllable if the risk is not controllable.
Preferably, in the fourth step, the method further comprises: and installing rainfall detection equipment capable of representing the rainfall intensity of the service area in the service area, and acquiring rainfall data of the service area through the rainfall detection equipment.
Preferably, in the fifth step, water quality, water quantity monitoring equipment is installed in each intercepting well and sewage pump station, so as to obtain the water level, water quality and water quantity of each intercepting well and sewage pump station in real time, and by using the actual operation data of the intercepting system collected in the second step, according to the influence of the water level, water quality and water quantity on the pump and gate control of each intercepting well and sewage pump station, parameters of each facility management and control are evaluated, and parameter indexes of each intercepting well and sewage pump station which need to be managed and controlled are selected, wherein the reference indexes include:
the water level and the water quality of each intercepting well and each sewage pump station;
the water outlet flow of each pump machine;
rainfall data of the service area.
Preferably, in the fifth step, the data monitored by the water quality, water level and water amount monitoring device is substituted into the operation of the scheduling model to obtain an actual scheduling scheme; the operation of the scheduling model comprises:
(1) operation parameter
The maximum conveying capacity allowed to be conveyed by the sewage pumping station in unit time is as follows:
discharge amount per unit time of each intercepting well: qJLkWater amount monitored per unit time by water amount monitoring equipment installed in each catch basin;
water quality concentration of each intercepting well: cJLrThe system is obtained by monitoring water quality monitoring equipment arranged in each intercepting well;
the water quality concentration of the sewage pump station is as follows: cBZnThe sewage pump station is obtained by monitoring water quality monitoring equipment arranged in the sewage pump station;
(2) equation of operation
The water receiving amount of the sewage pumping station is less than or equal to the maximum water amount allowed to be conveyed, namely:
the high priority of pollutant concentration of each vatch basin is arranged, concentration is low under the condition that the high priority of concentration is discharged, according to sewage pump station maximum allowable delivery volume subtract the flow difference of the volume of priority discharge, whether the vatch basin can discharge to sewage pump station, carry out the sequencing according to the quality of water concentration of each vatch basin promptly, the vatch basin maximum capacity drainage of concentration is high, add in proper order, when reaching sewage pump station's maximum drainage capacity, this vatch basin is according to sewage pump station allowable delivery maximum water yield subtract the difference within the scope of the sum of priority discharge, concentration lower then not discharge, promptly:
CJL1≥CJL2≥......CJLm≥......CJLn
if it is
And is
Discharge capacity of 1 st to m-1 st intercepting well is QJLk，
The maximum amount of drainage allowed for the mth vatch well is:
the discharge amount of the intercepting well from the m +1 th to the n th is 0;
(3) controlling the water level of the intercepting well as the basis for discharging
The water level of each intercepting well is measured by water level monitoring equipment in each intercepting well, the lowest liquid level and the highest liquid level are set for each intercepting well, and if the water level of one intercepting well reaches the lowest liquid level, a pump in the intercepting well is controlled to stop pumping water; and if the water level of the intercepting well reaches the highest liquid level, performing overflow alarm on the intercepting well.
Preferably, in the sixth step, the scheduling scheme is started according to the rainfall: and according to the monitored rainfall data, automatically starting a scheduling scheme during rainfall after rainfall, and stopping the scheduling scheme when all water in the intercepting system can be received after the rainfall.
Preferably, in the sixth step, each intercepting well executes corresponding scheduling according to the water level and water quality data monitored by each intercepting well, once the operating interval required by each intercepting well in the scheduling scheme is reached, and the operation of the corresponding pump and the corresponding gate is controlled.
Preferably, the method further comprises the following steps:
seventhly, sorting and refining scheduling scheme
And analyzing the scheduling result to obtain a conventional general scheduling scheme, and manually scheduling when the monitoring data is distorted or disconnected.
Compared with the prior art, the invention has the following technical effects:
the invention provides a scientific method for jointly scheduling an interception system and a sewage drainage system, which utilizes a drainage model and the monitoring and control of key indexes to schedule the interception system and the sewage drainage system in real time, thereby realizing the scientific discharge of the intercepted water into the sewage drainage system or a river channel;
the method comprises the steps of simulating by establishing a scheduling model, performing point distribution monitoring according to scheduling requirements of the scheduling model, differentially collecting sewage of each intercepting well by utilizing real-time data of monitored water level, water quality and water quantity and a calculation mode of maximum sewage quantity stored by master control, and realizing intelligent intercepting and draining;
the method is more convenient and fast, has good operability, can carry out more detailed scheduling through multiple comparative evaluations, and accumulates more scheduling experiences;
the key of the invention is to use the upstream and downstream relation and the real-time monitoring data to carry out scientific command around the dispatching purpose, and the dispatching is carried out according to the model control rule according to the upstream and downstream states and the total amount in the running process, thereby avoiding the occurrence of the condition that one problem brings other problems and even is not paid for;
the invention combines scientific model operation and real-time monitoring, can not only scientifically command scheduling, but also can reversely deduce whether scheduling is normal or not and optimize scheduling by using the data upstream-downstream relation and logic operation and the result of relevant scheduling monitoring data when the abnormal scheduling condition is found by supervision.
Drawings
Fig. 1 is a schematic structural view of an entire drainage system according to a preferred embodiment of the present invention.
Detailed Description
The following detailed description is made with reference to the accompanying drawings, which illustrate an embodiment.
A method for intercepting and draining water scheduling by using water quality and water quantity comprises the following steps:
firstly, carrying out investigation and reconnaissance on the whole drainage system to obtain basic data;
referring to fig. 1, the whole drainage system includes a cut-off system and a sewage drainage system which are connected in sequence, the cut-off system includes a cut-off pipe network, a cut-off inspection well and a cut-off well, the sewage drainage system includes a sewage pipe network, a drainage inspection well, a drainage pump station and a sewage treatment plant, a plurality of inspection wells are generally provided in a service area of one cut-off well, the plurality of inspection wells in each service area converge to the cut-off well of the service area through the cut-off pipe network, the sewage flowing through the sewage pipe network is converged to the sewage pipe network through the operation of a pump in the cut-off well, and the sewage flowing through the sewage pipe network is conveyed to the sewage treatment plant through the sewage pump station.
In the first step, the basic data includes:
the basic data of the intercepting system comprises
CAD (computer-aided design) images, embedding depth, pipe diameter, trend, length, material, initial intercepting inspection well and terminal intercepting inspection well of the intercepting pipe network;
intercepting the elevation, the depth, the warning line and the danger line of the inspection well;
the elevation, the depth, the gate, the pump, the grating, the warning line, the danger line and the control rule of the intercepting well;
the basic data of the sewage drainage system comprises
The burying depth, pipe diameter, direction, length, material, initial sewage inspection well and terminal sewage inspection well of the sewage pipe network;
the elevation, the depth, the warning line and the danger line of the sewage inspection well;
the elevation of a sewage pump station, the depth of a storage tank, the bottom area of the storage tank, a pump machine, a grid, a gate and a control rule;
maximum allowable incoming flow and incoming water quality requirements for a sewage treatment plant.
Secondly, the actual operation condition of the intercepting system in sunny days and rainy days is investigated;
in the second step, pump machines and gates in each intercepting well and each intercepting well are investigated on site, and the water quality, water level and water quantity (flow) of each intercepting well and the operation conditions of the corresponding pump machines and gates in sunny days and rainy days are obtained:
in a fine day, acquiring the water quality, water level and water quantity (flow) of each intercepting well from nine to ten am, twelve to one noon, twenty to twenty night and two to three in the early morning and the operation conditions of a corresponding pump and a corresponding gate;
in rainy days, the water quality, water level and water quantity (flow) of each intercepting well in two hours before rain, two hours after rain and six hours after rain and the operation conditions of corresponding pumps and gates are obtained.
In the step, the obtained water quality, water level and water quantity (flow) of each intercepting well in sunny days and rainy days are estimated values, and the estimated values are obtained according to basic data and actual weather conditions, and correspond to the running conditions of each pump and each gate respectively;
thirdly, establishing a closure drainage scheduling model;
in the third step, the method for establishing the scheduling model includes: firstly establishing a drainage model, then acquiring the upstream and downstream relation of the whole drainage system according to the drainage model, and setting operation conditions, wherein the operation conditions comprise:
(1) the sewage conveying amount of a sewage pump station in unit time cannot exceed the maximum conveying amount;
(2) the higher the sewage concentration entering the sewage pump station in unit time is, the better the dispatching is;
(3) when a plurality of vatch basin carry sewage to downstream sewer pipe network, the priority that pollutant concentration is high is discharged.
The method for establishing the scheduling model comprises the following steps: establishing the drainage model on SWMM or INFOWORK according to the basic data obtained in the first step, and verifying whether the running condition can generate serious risk under the corresponding rain type by inputting the rain type and the running condition investigated in the second step, wherein the simulation running by using the model is a very skilled process in the industry at present, and the description is omitted; and if the risk of the simulation result is controllable, applying a corresponding scheduling rule, and if the risk of the simulation result is not controllable, adjusting the operation condition until the risk is controllable.
Fourthly, water quality, water level and water quantity monitoring equipment is installed in each intercepting well and each sewage pump station, and each pump machine and each gate are remotely controlled;
in this step, all install the monitoring facilities who is used for real-time supervision quality of water, water level and water yield in each vatch basin and sewage pump station to carry out remote control to each pump machine, gate, if some pump machines and gates originally can not carry out remote control, then need reform transform these pump machines and gates, make it can by remote control.
In this step, the method further includes: and installing rainfall detection equipment capable of representing the rainfall intensity of the service area in the service area, and acquiring rainfall data of the service area through the rainfall detection equipment.
The water quality monitoring device is used for monitoring the water quality concentration of the corresponding facility, the water level monitoring device is used for monitoring the water level of the corresponding facility, and the water quantity detection device is used for monitoring the flow of the corresponding facility.
Fifthly, making an actual scheduling scheme by using data monitored by water quality, water level and water quantity monitoring equipment and the scheduling model;
in this step five, through installing quality of water, water level, water yield monitoring facilities in each vatch basin and sewage pump station, acquire the water level, quality of water and the water yield of each vatch basin and sewage pump station in real time, and utilize the actual operating data of the system that dams that step two gathered, according to the influence size of water level, quality of water and water yield to the pump machine and the gate control of each vatch basin and sewage pump station, assess the parameter of each facility management and control, select the parameter index that each vatch basin and sewage pump station need the management and control, in this embodiment, the reference index includes:
the water level and the water quality of each intercepting well and each sewage pump station;
the water outlet flow of each pump machine;
rainfall data of the service area.
When monitoring the water quality of each intercepting well, from the economic perspective, the conventional method can be set as SS, DO and oxidation reduction potential, and COD and ammonia nitrogen can also be added.
In the fifth step, the data monitored by the water quality, water level and water amount monitoring equipment are substituted into the operation of the scheduling model to obtain an actual scheduling scheme; the operation of the scheduling model comprises:
(1) operation parameter
The maximum conveying capacity allowed to be conveyed by the sewage pumping station in unit time is as follows:
discharge amount per unit time of each intercepting well: qJLkWater amount monitored per unit time by water amount monitoring equipment installed in each catch basin;
water quality concentration of each intercepting well: cJLrThe system is obtained by monitoring water quality monitoring equipment arranged in each intercepting well;
the water quality concentration of the sewage pump station is as follows: cBZnThe sewage pump station is obtained by monitoring water quality monitoring equipment arranged in the sewage pump station;
(2) equation of operation
The water receiving amount of the sewage pumping station is less than or equal to the maximum water amount allowed to be conveyed, namely:
the high priority of pollutant concentration of each vatch basin is arranged, concentration is low under the condition that the high priority of concentration is discharged, according to sewage pump station maximum allowable delivery volume subtract the flow difference of the volume of priority discharge, whether the vatch basin can discharge to sewage pump station, carry out the sequencing according to the quality of water concentration of each vatch basin promptly, the vatch basin maximum capacity drainage of concentration is high, add in proper order, when reaching sewage pump station's maximum drainage capacity, this vatch basin is according to sewage pump station allowable delivery maximum water yield subtract the difference within the scope of the sum of priority discharge, concentration lower then not discharge, promptly:
CJL1≥CJL2≥......CJLm≥......CJLn
if it is
And is
Discharge capacity of 1 st to m-1 st intercepting well is QJLk，
The maximum amount of drainage allowed for the mth vatch well is:
the discharge amount of the intercepting well from the m +1 th to the n th is 0;
(3) controlling the water level of the intercepting well as the basis for discharging
The water level of each intercepting well is measured by water level monitoring equipment in each intercepting well, the lowest liquid level and the highest liquid level are set for each intercepting well, and if the water level of one intercepting well reaches the lowest liquid level, a pump in the intercepting well is controlled to stop pumping water; and if the water level of the intercepting well reaches the highest liquid level, performing overflow alarm.
Sixth, executing the scheduling scheme
1. Starting scheduling scheme according to rainfall
And according to the monitored rainfall data, automatically starting a scheduling scheme during rainfall after rainfall, and stopping the scheduling scheme when all water in the intercepting system can be received after the rainfall.
2. According to a scheduling procedure
And once the respective required operation intervals in the scheduling scheme are reached, the corresponding scheduling scheme is executed according to the respective monitored water level and water quality data of each intercepting well, the operation of the corresponding pump and the corresponding gate is controlled, and the scheduling target of switching on and off the pump and the gate is realized.
Seventhly, sorting and refining scheduling scheme
And analyzing the scheduling result to obtain a conventional general scheduling scheme, and manually scheduling when the monitoring data is distorted or the monitoring equipment is disconnected.
The disclosure above is only one specific embodiment of the present application, but the present application is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present application.
Claims (11)
1. A method for carrying out intercepting drainage scheduling by utilizing water quality and water quantity is characterized by comprising the following steps:
firstly, carrying out investigation and reconnaissance on the whole drainage system to obtain basic data;
secondly, the actual operation condition of the intercepting system in sunny days and rainy days is investigated;
thirdly, establishing a closure drainage scheduling model;
fourthly, water quality, water level and water quantity monitoring equipment is installed in each intercepting well and each sewage pump station, and each pump machine and each gate are remotely controlled;
fifthly, making an actual scheduling scheme by using data monitored by the water quality, water level and water amount monitoring equipment and the scheduling model;
and sixthly, executing a scheduling scheme.
2. The method for intercepting drainage scheduling according to claim 1, wherein the whole drainage system comprises an intercepting system and a sewage drainage system which are connected in sequence, and the basic data obtained in the step (one) comprises:
the basic data of the intercepting system comprises
CAD (computer-aided design) images, embedding depth, pipe diameter, trend, length, material, initial intercepting inspection well and terminal intercepting inspection well of the intercepting pipe network;
intercepting the elevation, the depth, the warning line and the danger line of the inspection well;
the elevation, the depth, the gate, the pump, the grating, the warning line, the danger line and the control rule of the intercepting well;
the basic data of the sewage drainage system comprises
The burying depth, pipe diameter, direction, length, material, initial sewage inspection well and terminal sewage inspection well of the sewage pipe network;
the elevation, the depth, the warning line and the danger line of the sewage inspection well;
the elevation of a sewage pump station, the depth of a storage tank, the bottom area of the storage tank, a pump machine, a grid, a gate and a control rule;
maximum allowable incoming flow and incoming water quality requirements for a sewage treatment plant.
3. The method for intercepting drainage scheduling by water quality and water quantity according to claim 1, wherein in the second step, the pump and the gate in each intercepting well and each intercepting well are investigated on site to obtain the water quality, water level and water quantity of each intercepting well and the operation conditions of the corresponding pump and gate in fine days and rainy days:
in a fine day, acquiring the water quality, water level and water quantity of each intercepting well from nine to ten am, twelve to one am, twenty to twenty pm in the evening and two to three am in the morning and the operation conditions of a corresponding pump and a corresponding gate;
in rainy days, the water quality, water level and water quantity of each intercepting well in two hours before rain, two hours after rain and six hours after rain and the operation conditions of corresponding pumps and gates are obtained.
4. The method for intercepting and draining scheduling by water quality and water quantity according to claim 1, wherein in the third step, the method for establishing the scheduling model comprises: firstly establishing a drainage model, then acquiring the upstream and downstream relation of the whole drainage system according to the drainage model, and setting operation conditions, wherein the operation conditions comprise:
(1) the sewage conveying amount of a sewage pump station in unit time cannot exceed the maximum conveying amount;
(2) the higher the sewage concentration entering the sewage pump station in unit time is, the better the dispatching is;
(3) when a plurality of vatch basin carry sewage to downstream sewer pipe network, the priority that pollutant concentration is high is discharged.
5. The method for intercepting and draining scheduling by water quality and water quantity according to claim 4, wherein the method for establishing the scheduling model comprises the following steps:
and (3) establishing the drainage model on SWMM or INFOWORK according to the basic data acquired in the first step, verifying whether the running condition can generate serious risk under the corresponding rain type by inputting the rain type and the running condition investigated in the second step, applying a corresponding scheduling rule if the risk is controllable in a simulation result, and adjusting the running condition until the risk is controllable if the risk is not controllable.
6. The method for flow-intercepting drainage scheduling by using water quality and water quantity according to claim 4, wherein in the fourth step, the method further comprises: and installing rainfall detection equipment capable of representing the rainfall intensity of the service area in the service area, and acquiring rainfall data of the service area through the rainfall detection equipment.
7. The method according to claim 1, wherein in the fifth step, water quality, water quantity monitoring devices are installed in the intercepting wells and the sewage pump stations to obtain the water levels, the water qualities and the water quantities of the intercepting wells and the sewage pump stations in real time, parameters of management and control of each facility are evaluated according to the influence of the water levels, the water qualities and the water quantities on the pump machines and the gates of the intercepting wells and the sewage pump stations by using the actual operation data of the intercepting system collected in the second step, and parameter indexes of the intercepting wells and the sewage pump stations needing to be managed and controlled are selected, wherein the reference indexes include:
the water level and the water quality of each intercepting well and each sewage pump station;
the water outlet flow of each pump machine;
rainfall data of the service area.
8. The method for intercepting drainage scheduling by using water quality and water quantity according to claim 7, wherein in the fifth step, data monitored by water quality, water level and water quantity monitoring equipment is substituted into the operation of the scheduling model to obtain an actual scheduling scheme; the operation of the scheduling model comprises:
(1) operation parameter
The maximum conveying capacity allowed to be conveyed by the sewage pumping station in unit time is as follows:
discharge amount per unit time of each intercepting well: qJLkWater amount monitored per unit time by water amount monitoring equipment installed in each catch basin;
water quality concentration of each intercepting well: cJLrThe system is obtained by monitoring water quality monitoring equipment arranged in each intercepting well;
the water quality concentration of the sewage pump station is as follows: cBZnThe sewage pump station is obtained by monitoring water quality monitoring equipment arranged in the sewage pump station;
(2) equation of operation
The water receiving amount of the sewage pumping station is less than or equal to the maximum water amount allowed to be conveyed, namely:
the high priority of pollutant concentration of each vatch basin is arranged, concentration is low under the condition that the high priority of concentration is discharged, according to sewage pump station maximum allowable delivery volume subtract the flow difference of the volume of priority discharge, whether the vatch basin can discharge to sewage pump station, carry out the sequencing according to the quality of water concentration of each vatch basin promptly, the vatch basin maximum capacity drainage of concentration is high, add in proper order, when reaching sewage pump station's maximum drainage capacity, this vatch basin is according to sewage pump station allowable delivery maximum water yield subtract the difference within the scope of the sum of priority discharge, concentration lower then not discharge, promptly:
CJL1≥CJL2≥......CJLm≥......CJLn
if it is
And is
Discharge capacity of 1 st to m-1 st intercepting well is QJLk，
The maximum amount of drainage allowed for the mth vatch well is:
the discharge amount of the intercepting well from the m +1 th to the n th is 0;
(3) controlling the water level of the intercepting well as the basis for discharging
The water level of each intercepting well is measured by water level monitoring equipment in each intercepting well, the lowest liquid level and the highest liquid level are set for each intercepting well, and if the water level of one intercepting well reaches the lowest liquid level, a pump in the intercepting well is controlled to stop pumping water; and if the water level of the intercepting well reaches the highest liquid level, performing overflow alarm on the intercepting well.
9. The method for intercepting drainage scheduling by water quality and water quantity according to claim 1, wherein in the sixth step, the scheduling scheme is started according to rainfall: and according to the monitored rainfall data, automatically starting a scheduling scheme during rainfall after rainfall, and stopping the scheduling scheme when all water in the intercepting system can be received after the rainfall.
10. The method for intercepting drainage scheduling by water quality and water quantity according to claim 1, wherein in the sixth step, each intercepting well executes corresponding scheduling according to the water level and water quality data monitored by each intercepting well, and once the operation interval required by each intercepting well in the scheduling scheme is reached, the operation of the corresponding pump and the corresponding gate is controlled.
11. The method for intercepting drainage scheduling utilizing water quality and water quantity according to claim 1, further comprising:
seventhly, sorting and refining scheduling scheme
And analyzing the scheduling result to obtain a conventional general scheduling scheme, and manually scheduling when the monitoring data is distorted or the monitoring equipment is disconnected.
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