Dynamic treatment control system for port sewage based on pressure feedback and flow coordination

Abstract

The present invention discloses a port sewage dynamic treatment control system based on pressure feedback and flow coordination, and relates to the technical field of port sewage treatment. The port sewage dynamic treatment control system based on pressure feedback and flow coordination includes: a port sewage pipeline blockage analysis module, a port sewage flow state analysis module and a sewage pressure coordinated control analysis module. The present invention performs port sewage pipeline blockage analysis through the obtained filter medium pressure difference to determine whether to perform anti-oscillation frequency conversion optimization, and then determines whether to perform intelligent speed regulation optimization based on the port sewage flow state analysis results. Finally, it performs sewage pressure coordinated control analysis through the obtained sewage pressure coordinated data to determine whether to perform separation and replenishment optimization, thereby achieving an improvement in the efficiency of closed-loop coordinated control of sewage parameters in the reaction tank when blockage occurs in the biochemical treatment stage, and effectively solves the problem of low efficiency of closed-loop coordinated control of sewage parameters in the reaction tank when blockage occurs in the biochemical treatment stage.

Description

Technical Field

[0001] The present invention relates to the technical field of port sewage treatment, and in particular to a port sewage dynamic treatment control system based on pressure feedback and flow coordination. Background Art

[0002] In the field of port wastewater treatment, ports, as key hubs for logistics and transportation, are increasingly prominent in terms of their economic importance. However, port operations generate large quantities of wastewater with a complex composition, including oil, suspended solids, chemicals, and various pollutants. The existing wastewater treatment process follows the following steps: In the pretreatment stage, large particles are removed through screen filtration, followed by gravity settling of suspended solids in sedimentation tanks. Pipeline pressure data is collected and used for feedback control of flow rates. A buffer tank is installed between the pretreatment and biochemical treatment stages to buffer the wastewater. Biochemical treatment involves microbial decomposition of organic matter in the wastewater, with the addition of chemicals to optimize the microbial reaction rate. Hydrocyclones are used to suppress pressure fluctuations. Advanced treatment involves chemical coagulation to remove residual pollutants such as nitrogen, phosphorus, and heavy metals. Discharge into the nearest sea or river is completed upon compliance with discharge standards. Each stage is connected by pipelines, and the collected water quality and quantity data are fed into a model (such as an online neural network model) to output a corresponding treatment strategy.

[0003] For example, the invention patent with announcement number CN117049709B announces an integrated monitoring and diagnosis linkage sewage treatment system and method, including: a control system, a regulating tank, a biochemical treatment module and an artificial wetland treatment module, a dynamic detection module for monitoring the water quality and quantity in the regulating tank, and an expert diagnosis module for matching corresponding treatment measures according to the obtained water quality and quantity. According to the diagnosis result of the expert diagnosis module, the connection method of the regulating tank is changed to a connection method corresponding to the diagnosis result.

[0004] For example, the invention patent with announcement number CN109879474B announced a dynamically adjustable sewage condition treatment system, including: collecting water quality information of the sewage treatment point; identifying the sewage type and sewage treatment point corresponding to the water quality information; establishing a control model for optimizing various sewage treatment equipment based on the total water quality information of a sewage treatment point under a certain type; dynamically selecting the control model corresponding to the sewage treatment point under the sewage type based on the currently received water quality information; transmitting the control information of the control model to the control subsystem, and the control subsystem controls the operating parameters of each sewage treatment equipment according to the control information.

[0005] The above technology has at least the following technical problems:

[0006] In the multi-stage treatment process architecture of sewage treatment, efforts are made to dynamically optimize the sewage treatment process, especially when the sewage composition fluctuates. For example, rainstorm runoff causes a sudden increase in suspended solids concentration or port tanker cleaning operations cause an increase in the instantaneous concentration of oily wastewater. The online monitoring equipment of the pre-treatment unit cannot complete the collection and transmission of pump pressure data during the initial critical window period when the pollutant impact occurs. This perception lag causes the control system to be unable to obtain the water quality mutation characteristics in a timely manner, and thus cannot perform a rapid response from the pretreatment to the reaction tank stage. The sedimentation tank is connected to the biological reactor by a pipeline, so it is impossible to timely feedback the obtained pressure data to the valve to reduce the upstream flow in real time, resulting in high-concentration pollutants directly flowing into the biochemical reactor without timely buffering. When high-concentration pollutants continue to flow into the biochemical reactor, the sludge reactor is difficult to operate continuously and stably. There is a problem of low efficiency of closed-loop coordinated control of sewage parameters in the reactor when blockage occurs in the biochemical treatment stage. Summary of the Invention

[0007] The present invention solves the problem in the prior art of low efficiency of closed-loop coordinated control of sewage parameters in the reaction tank when blockage occurs in the biochemical treatment stage by providing a port sewage dynamic treatment control system based on pressure feedback and flow coordination, thereby improving the efficiency of closed-loop coordinated control of sewage parameters in the reaction tank when blockage occurs in the biochemical treatment stage.

[0008] The present invention provides a port sewage dynamic treatment control system based on pressure feedback and flow coordination, comprising: a port sewage pipeline blockage analysis module, a port sewage flow state analysis module and a sewage pressure coordinated control analysis module; wherein the port sewage pipeline blockage analysis module is used to perform port sewage pipeline blockage analysis based on the obtained filter medium pressure difference, and at the same time, determine whether to perform anti-oscillation frequency conversion optimization based on the obtained port sewage pipeline blockage analysis result, and the anti-oscillation frequency conversion optimization means improving the timeliness of pressure feedback of the port sewage pipeline through anti-oscillation overshoot optimization and frequency conversion adjustment optimization; the port sewage flow state analysis module is used to determine whether to perform anti-oscillation frequency conversion optimization based on the obtained port sewage pipeline blockage analysis result when the port sewage pipeline is not blocked. The sewage flow state data is used to analyze the port sewage flow state, and at the same time, it is determined whether to perform intelligent speed regulation optimization based on the obtained port sewage flow state analysis results. Intelligent speed regulation optimization means adjusting the retractable compartment length and the inlet gate height to improve the control efficiency of the port sewage flow; the sewage pressure collaborative control analysis module is used to perform sewage pressure collaborative control analysis based on the obtained sewage pressure collaborative data after the port sewage flow state is qualified, and at the same time, it is determined whether to perform separation and supply optimization based on the obtained sewage pressure collaborative control analysis results. Separation and supply optimization means adjusting the hydrocyclone power and chemical dosage to improve the pressure-flow synergy of the port sewage.

[0009] Furthermore, the determination of whether to perform anti-oscillation frequency conversion optimization specifically includes the following steps:

[0010] Compare the obtained filter medium pressure difference with the filter medium pressure difference preset in the database:

[0011] If the obtained filter medium pressure difference is greater than the filter medium pressure difference preset in the database, the obtained port sewage pipe blockage analysis result is recorded as port sewage pipe blockage and anti-oscillation overshoot optimization is performed;

[0012] If the obtained filter medium pressure difference is not greater than the filter medium pressure difference preset in the database, the obtained port sewage pipe blockage analysis result is recorded as the port sewage pipe is not blocked and the port sewage flow state analysis is performed.

[0013] Furthermore, the specific steps of the anti-oscillation overshoot optimization are:

[0014] A first pressure adjustment value is obtained by mapping the obtained filter medium pressure difference deviation in a database to perform a correction on the pump power of the port sewage pipeline;

[0015] After the first correction, it is determined whether the obtained reduction in the filter medium pressure difference deviation is within the reduction range preset in the database. If so, an anti-oscillation overshoot optimization is completed and the port sewage flow state analysis is performed. Otherwise, a second pressure adjustment value is obtained by mapping the filter medium pressure difference deviation obtained after the first anti-oscillation overshoot optimization in the database, and a second correction is performed on the filter medium cleaning frequency.

[0016] If the filter medium pressure difference obtained after the secondary correction is greater than the filter medium pressure difference preset in the database, frequency conversion adjustment optimization is performed; otherwise, the secondary anti-oscillation overshoot optimization is completed and the sewage flow state analysis is performed.

[0017] Furthermore, the specific steps of the frequency conversion adjustment optimization are:

[0018] The frequency adjustment value of the variable frequency pump obtained after the anti-oscillation overshoot optimization is used to reduce the water pressure on both sides of the port sewage pipeline. The variable frequency pump frequency adjustment value represents the result of mapping the filter medium pressure difference re-obtained after the anti-oscillation overshoot optimization in the database;

[0019] If the filter medium pressure difference obtained after the frequency conversion adjustment optimization is greater than the filter medium pressure difference preset in the database, a frequency conversion pump warning is issued; otherwise, the anti-oscillation frequency conversion optimization is completed and the sewage flow state analysis is performed.

[0020] Furthermore, the port sewage flow state analysis is performed based on the acquired sewage flow state data, and the specific steps include:

[0021] The acquired sewage flow state data is compared with the sewage flow state data preset in the database for difference, and correction processing is performed in combination with the sewage flow state data correction value to obtain the sewage flow state data score, and coupled processing is performed to obtain the sewage flow state index;

[0022] The sewage flow state data includes the inlet pipe sewage flow velocity, the inlet pipe flow fluctuation rate and the reaction tank liquid level amplitude; the sewage flow state data correction value includes the inlet pipe sewage flow velocity correction value, the inlet pipe flow fluctuation rate correction value and the reaction tank liquid level amplitude correction value; the sewage flow state data score includes the inlet pipe sewage flow velocity score, the inlet pipe flow fluctuation rate score and the reaction tank liquid level amplitude score; the sewage flow state index represents the quantitative data of the degree of influence of the sewage flow state data on the sewage flow continuity in the reaction tank stage.

[0023] Furthermore, the determination of whether to perform intelligent speed regulation optimization specifically includes the following steps:

[0024] Compare the obtained sewage flow status indicators with the sewage flow status indicators preset in the database:

[0025] If the obtained sewage flow state index is greater than the sewage flow state index preset in the database, the obtained port sewage flow state analysis result will be recorded as the port sewage flow state unqualified and intelligent speed regulation optimization will be performed;

[0026] If the obtained sewage flow state index is not greater than the sewage flow state index preset in the database, the obtained port sewage flow state analysis result will be recorded as the port sewage flow state is qualified and the sewage pressure coordinated control analysis will be performed.

[0027] Furthermore, the specific steps of the intelligent speed regulation optimization are:

[0028] The harmonic mean result of the obtained sewage flow state index deviation and the inlet turbidity deviation is recorded as the first flow adjustment value to adjust the length of the retractable compartment of the buffer tank at the connection point once;

[0029] After the first adjustment, determine whether the reduction in the obtained sewage flow state indicator deviation is within the reduction range preset in the database. If so, complete the intelligent speed regulation optimization and perform sewage pressure coordinated control analysis. Otherwise, record the harmonic average result of the sewage flow state indicator deviation and the inlet turbidity deviation re-obtained after the first adjustment as the second flow adjustment value to perform a second adjustment on the gate height of the port sewage pipe inlet;

[0030] If the sewage flow state index obtained again after the secondary adjustment is greater than the sewage flow state index preset in the database, an inlet flow warning is issued; otherwise, the intelligent speed regulation optimization is completed and the sewage pressure coordinated control analysis is performed.

[0031] Furthermore, the sewage pressure collaborative control analysis is performed based on the acquired sewage pressure collaborative data, and the specific steps are as follows:

[0032] The obtained sewage pressure synergy data is compared with the preset sewage pressure synergy data in the database for difference, and the sewage pressure synergy data correction value is combined for correction processing to obtain the sewage pressure synergy data score. The inverse proportional processing result of the microbial activity score is coupled with the pollutant concentration score and the turbidity change duration score to obtain the sewage pressure synergy index;

[0033] The sewage pressure synergy data includes pollutant concentration, microbial activity and turbidity change time. The sewage pressure synergy data correction value includes the pollutant concentration correction value, the microbial activity correction value and the turbidity change time correction value. The sewage pressure synergy data score includes the pollutant concentration score, the microbial activity score and the turbidity change time score. The sewage pressure synergy index represents the quantitative data of the degree of influence of the sewage pressure synergy data on the pressure-flow synergy.

[0034] Furthermore, the specific steps of determining whether to perform separation and replenishment optimization are as follows:

[0035] Compare the obtained sewage pressure coordination index with the sewage pressure coordination index preset in the database:

[0036] If the obtained sewage pressure coordination index is not greater than the sewage pressure coordination index preset in the database, the obtained sewage pressure coordination control analysis result is recorded as qualified pressure-flow coordination and the port sewage dynamic treatment control is completed;

[0037] If the obtained sewage pressure coordination index is greater than the sewage pressure coordination index preset in the database, the obtained sewage pressure coordination control analysis result will be recorded as pressure-flow coordination failure and separate supply optimization will be performed.

[0038] Furthermore, the specific steps of the separation and replenishment optimization are:

[0039] The harmonic mean result of the obtained sewage pressure synergy index deviation and the pollutant metabolism efficiency deviation is recorded as the first synergy adjustment value to perform a synergy adjustment on the hydrocyclone power in the reaction tank;

[0040] After one coordinated adjustment, determine whether the reduction range of the obtained sewage pressure coordinated index is within the reduction range preset in the database. If so, complete the separation and replenishment optimization and re-perform the sewage pressure coordinated control analysis. Otherwise, record the harmonic average result of the sewage pressure coordinated index deviation and the pollutant metabolic efficiency deviation re-obtained after the first coordinated adjustment as the second coordinated adjustment value to perform a second coordinated adjustment on the chemical dosage in the reaction tank.

[0041] If the sewage pressure coordination index obtained again after the secondary coordinated adjustment is greater than the sewage pressure coordination index preset in the database, an alarm is issued in the microbial pool; otherwise, the separation and replenishment optimization is completed and the dynamic treatment control of the port sewage is completed.

[0042] One or more technical solutions provided by the present invention have at least the following technical effects or advantages:

[0043] 1. The port sewage pipeline blockage analysis is performed based on the obtained filter medium pressure difference to determine whether to perform anti-oscillation frequency conversion optimization. Then, based on the port sewage flow state analysis results, it is determined whether to perform intelligent speed regulation optimization. Finally, the sewage pressure collaborative control analysis is performed based on the obtained sewage pressure collaborative data to determine whether to perform separation and replenishment optimization. This improves the efficiency of the closed-loop collaborative control of sewage parameters in the reaction tank when blockage occurs in the biochemical treatment stage, effectively solving the problem of low closed-loop collaborative control efficiency of sewage parameters in the reaction tank when blockage occurs in the biochemical treatment stage.

[0044] 2. The difference between the inlet pipe sewage flow rate and the inlet pipe sewage flow rate referenced in the database is corrected using the inlet pipe sewage flow rate correction value to obtain the inlet pipe sewage flow rate score. The inlet pipe flow fluctuation rate score and the reaction tank liquid level amplitude score are obtained through the same steps. The inlet pipe sewage flow rate score, the inlet pipe flow fluctuation rate score and the reaction tank liquid level amplitude score are coupled to obtain the sewage flow state index, thereby improving the accuracy of the sewage flow state index acquisition and achieving more accurate assessment of the sewage flow state data during the acquisition process.

[0045] 3. The pollutant concentration correction value is used to correct the difference between the pollutant concentration and the reference pollutant concentration in the database to obtain the pollutant concentration score. The microbial activity score and the turbidity change duration score are obtained through the same steps. The pollutant concentration score, microbial activity score and turbidity change duration score are coupled to obtain the sewage pressure synergy index, thereby improving the accuracy of the sewage pressure synergy index and achieving more accurate evaluation of the sewage pressure synergy data during the acquisition process. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1A block diagram of a port sewage dynamic treatment control system based on pressure feedback and flow coordination provided by an embodiment of the present invention;

[0047] Figure 2 A flowchart corresponding to the port sewage pipe blockage analysis module provided in an embodiment of the present invention;

[0048] Figure 3 A workflow diagram corresponding to the port sewage flow state analysis module provided in an embodiment of the present invention;

[0049] Figure 4 This is a workflow diagram corresponding to the sewage pressure collaborative control and analysis module provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0050] The embodiment of the present invention solves the problem of low efficiency of closed-loop coordinated control of sewage parameters in the reaction tank when blockage occurs in the biochemical treatment stage in the prior art by providing a port sewage dynamic treatment control system based on pressure feedback and flow coordination. The port sewage pipeline blockage analysis module performs port sewage pipeline blockage analysis based on the obtained filter medium pressure difference, and determines whether to perform anti-oscillation frequency conversion optimization based on the obtained port sewage pipeline blockage analysis result. Then, the port sewage flow state analysis module performs port sewage flow state analysis based on the obtained sewage flow state data when the port sewage pipeline is not blocked, and determines whether to perform intelligent speed regulation optimization based on the obtained port sewage flow state analysis result. Finally, the sewage pressure coordinated control analysis module performs sewage pressure coordinated control analysis based on the obtained sewage pressure coordinated data after the port sewage flow state is qualified, and determines whether to perform separation and supply optimization based on the obtained sewage pressure coordinated control analysis result, thereby achieving improved closed-loop coordinated control efficiency of sewage parameters in the reaction tank when blockage occurs in the biochemical treatment stage.

[0051] The technical solution in the embodiment of the present invention is to solve the problem of low efficiency of closed-loop coordinated control of sewage parameters in the reaction tank when blockage occurs in the above-mentioned biochemical treatment stage. The overall idea is as follows:

[0052] The port sewage pipeline blockage analysis is carried out by obtaining the filter medium pressure difference to determine whether to perform anti-oscillation frequency conversion optimization. Then, based on the port sewage flow state analysis results, it is determined whether to perform intelligent speed regulation optimization. Finally, the sewage pressure collaborative control analysis is carried out through the obtained sewage pressure collaborative data to determine whether to perform separation and supply optimization. This achieves the effect of improving the closed-loop collaborative control efficiency of sewage parameters in the reaction tank when blockage occurs in the biochemical treatment stage.

[0053] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0054] like Figure 1 As shown, it is a block diagram of a port sewage dynamic treatment control system based on pressure feedback and flow coordination provided by an embodiment of the present invention. The port sewage dynamic treatment control system based on pressure feedback and flow coordination provided by an embodiment of the present invention includes: a port sewage pipeline blockage analysis module, a port sewage flow state analysis module and a sewage pressure coordinated control analysis module; wherein, the port sewage pipeline blockage analysis module is used to perform port sewage pipeline blockage analysis based on the obtained filter medium pressure difference, and at the same time, determine whether to perform anti-oscillation frequency conversion optimization based on the obtained port sewage pipeline blockage analysis result, and the anti-oscillation frequency conversion optimization means improving the timeliness of pressure feedback of the port sewage pipeline through anti-oscillation overshoot optimization and frequency conversion adjustment optimization; the port sewage flow state analysis module is used to perform port sewage pipeline blockage analysis based on the obtained filter medium pressure difference, and at the same time, determine whether to perform anti-oscillation frequency conversion optimization based on the obtained port sewage pipeline blockage analysis result. The anti-oscillation frequency conversion optimization means improving the timeliness of pressure feedback of the port sewage pipeline through anti-oscillation overshoot optimization and frequency conversion adjustment optimization; the port sewage flow state analysis module is used to perform port sewage pipeline blockage analysis based on the obtained filter medium pressure difference, and at the same time, determine whether to perform anti-oscillation frequency conversion optimization based on the obtained port sewage pipeline blockage analysis result. The analysis module is used to analyze the port sewage flow status based on the acquired sewage flow status data when the port sewage pipeline is not blocked, and to determine whether to perform intelligent speed regulation optimization based on the acquired port sewage flow status analysis results. Intelligent speed regulation optimization means adjusting the retractable compartment length and the inlet gate height to improve the control efficiency of the port sewage flow; the sewage pressure coordinated control analysis module is used to perform sewage pressure coordinated control analysis based on the acquired sewage pressure coordinated data after the port sewage flow status is qualified, and to determine whether to perform separation and supply optimization based on the acquired sewage pressure coordinated control analysis results. Separation and supply optimization means adjusting the hydrocyclone power and chemical dosage to improve the pressure-flow synergy of the port sewage.

[0055] like Figure 2 As shown, it is a workflow diagram corresponding to the port sewage pipeline blockage analysis module provided by an embodiment of the present invention. The specific design logic is: determine whether the obtained filter medium pressure difference is greater than the filter medium pressure difference preset in the database. If not, perform port sewage flow state analysis. If so, adjust the water pump power according to the first pressure adjustment value, and determine whether the reduction amplitude of the re-acquired filter medium pressure difference is within the reduction amplitude range preset in the database. If so, complete the anti-oscillation overshoot optimization and perform port sewage flow state analysis. Otherwise, adjust the cleaning frequency according to the second pressure adjustment value and determine whether the re-acquired filter medium pressure difference is greater than the filter medium pressure difference preset in the database. If not, complete the anti-oscillation overshoot optimization. If so, adjust the variable frequency pump frequency adjustment value and re-acquire the filter medium pressure difference. Determine whether the value is greater than the filter medium pressure difference preset in the database. If so, perform variable frequency pump early warning. Otherwise, complete anti-oscillation variable frequency optimization.

[0056] like Figure 3As shown, it is a workflow diagram corresponding to the port sewage flow state analysis module provided by an embodiment of the present invention. The specific design logic is: determine whether the acquired sewage flow state index is greater than the sewage flow state index preset in the database. If not, the port sewage flow state is qualified and the sewage pressure collaborative control analysis is performed. If so, the length of the retractable compartment of the buffer tank is adjusted according to the first flow adjustment value, and it is determined whether the reduction amplitude of the re-acquired sewage flow state index is within the reduction amplitude range preset in the database. If so, the intelligent speed regulation optimization is completed and the sewage pressure collaborative control analysis is performed. Otherwise, the height of the inlet gate is adjusted according to the second flow adjustment value, and it is determined whether the re-acquired sewage flow state index is greater than the sewage flow state index preset in the database. If so, an inlet flow warning is sent. Otherwise, the intelligent speed regulation optimization is completed and the sewage pressure collaborative control analysis is performed.

[0057] like Figure 4 As shown, it is a workflow diagram corresponding to the sewage pressure collaborative control analysis module provided by an embodiment of the present invention. The specific design logic is: determine whether the acquired sewage pressure collaborative index is greater than the sewage pressure collaborative index preset in the database. If not, record the pressure-flow collaborative qualification and complete the sewage pressure collaborative control analysis. If so, adjust the power of the hydrocyclone according to the calculated first collaborative adjustment value, and determine whether the reduction range of the re-acquired sewage pressure collaborative index and the pollutant metabolic efficiency is within the reduction range preset in the database. If so, complete the separation and supply optimization. Otherwise, adjust the chemical dosage according to the second collaborative adjustment value, and determine whether the re-acquired sewage pressure collaborative index is greater than the sewage pressure collaborative index preset in the database. If so, send a microbial pool alarm instruction, otherwise complete the separation and supply optimization.

[0058] In this embodiment, when the port sewage is transported to the pipeline, the sewage after the pretreatment stage, that is, after passing through the screen and the sedimentation tank, is transmitted to the reaction tank through the pipeline for biochemical reaction. The degree of influence on the biochemical reaction rate in the biological pool is analyzed based on the pressure difference inside and outside the filter medium and the flow rate at the water inlet. The biochemical reaction rate in the reaction tank can reflect the effect of the coordinated optimization control of pressure and flow.

[0059] This example first triggers graded anti-oscillation frequency conversion optimization based on the pressure difference monitoring of the filter medium to solve the local pressure oscillation and high-frequency start-up and shutdown of the pump group caused by the blockage of the front pipeline, reduce the risk of suspended solids breakage caused by turbulent shear, and optimize the sewage flow velocity distribution with the help of the intelligent speed regulation linkage of the retractable compartment and the gate height, eliminate the hydraulic impact at the sedimentation tank inlet and the resuspension of the bottom sludge caused by the flow jump, improve the buffering energy dissipation efficiency of the coarse filtration link, correct the cyclone centrifugal strength and flocculation reaction by pollutant metabolism, increase the heavy-load particle separation accuracy and the organic matter load bearing stability of the biochemical system, and thus realize the improvement of the closed-loop coordinated control efficiency of the sewage parameters in the reaction tank when blockage occurs in the biochemical treatment stage.

[0060] Furthermore, it is determined whether to perform anti-oscillation frequency conversion optimization, and the specific steps include: comparing the obtained filter medium pressure difference with the filter medium pressure difference preset in the database: if the obtained filter medium pressure difference is greater than the filter medium pressure difference preset in the database, the obtained port sewage pipe blockage analysis result is recorded as port sewage pipe blockage and anti-oscillation overshoot optimization is performed; if the obtained filter medium pressure difference is not greater than the filter medium pressure difference preset in the database, the obtained port sewage pipe blockage analysis result is recorded as port sewage pipe non-blockage and port sewage flow state analysis is performed; the filter medium pressure difference represents the difference between the pressure inside the filter medium and the pressure outside the filter medium in the port sewage pipe.

[0061] Among them, the specific steps of the anti-oscillation overshoot optimization are: based on the obtained filter medium pressure difference deviation, a first pressure adjustment value is mapped in the database to correct the water pump power of the port sewage pipeline. The filter medium pressure difference deviation represents the absolute value of the difference between the filter medium pressure difference obtained at the end of the port sewage pipeline blockage analysis period and the preset filter medium pressure difference; after one correction, it is judged whether the reduction amplitude of the obtained filter medium pressure difference deviation is within the reduction amplitude range preset in the database. If so, an anti-oscillation overshoot optimization is completed and the port sewage flow state analysis is performed. Otherwise, the filter medium pressure difference deviation obtained after one correction is based on the re-acquired filter medium pressure difference deviation. The difference is mapped in the database to obtain a second pressure adjustment value to perform a secondary correction on the cleaning frequency of the filter medium; if the filter medium pressure difference obtained after the secondary correction is greater than the filter medium pressure difference preset in the database, the frequency conversion adjustment optimization is performed, otherwise the secondary anti-oscillation overshoot optimization is completed and the sewage flow state analysis is performed, the reduction amplitude of the filter medium pressure difference deviation represents the difference between the filter medium pressure difference deviation obtained before the anti-oscillation overshoot optimization and the filter medium pressure difference deviation obtained after the anti-oscillation overshoot optimization, and the preset reduction amplitude range represents the closed interval corresponding to the maximum and minimum values ​​of the historical filter medium pressure difference deviation reduction amplitude obtained after the historical separation and replenishment optimization in the database.

[0062] The specific steps of variable frequency regulation optimization are as follows: the variable frequency pump frequency adjustment value obtained after anti-oscillation overshoot optimization is used to reduce the water pressure on both sides of the port sewage pipeline. The variable frequency pump frequency adjustment value represents the result of mapping the filter medium pressure difference re-obtained after anti-oscillation overshoot optimization in the database; if the filter medium pressure difference re-obtained after variable frequency regulation optimization is greater than the filter medium pressure difference preset in the database, a variable frequency pump warning is issued; otherwise, the anti-oscillation variable frequency optimization is completed and the sewage flow status analysis is performed.

[0063] In this embodiment, the first pressure regulation value refers to the water pump power regulation value in the ramp rate limiting algorithm in the water pump. The algorithm adjusts the flow rate through the input first pressure regulation value, outputs the water pump power regulation result, and suppresses flow overshoot and nonlinear jump; the second pressure regulation value refers to the cleaning frequency adjustment value output by the improved fuzzy PID (Proportional-Integral-Derivative control) control algorithm. The algorithm adjusts the frequency of the pulse gas-liquid recoil device through the input second pressure regulation value, outputs the cleaning frequency adjustment result, and reduces the risk of blockage caused by impurities adhering to the filter medium.

[0064] This example dynamically adjusts the water pump power, cleaning frequency, and variable frequency pump frequency to precisely control pipeline pressure fluctuations, reduce blockage risks and system oscillation probability, improve stability, and ensure timely handling of abnormal conditions. Combined with active variable frequency adjustment, it reduces energy consumption and extends equipment life, ultimately achieving efficient sewage transportation.

[0065] Furthermore, a port sewage flow state analysis is performed based on the acquired sewage flow state data, and the specific steps include: performing difference comparison on the acquired sewage flow state data and the preset sewage flow state data in the database, and performing correction processing on the sewage flow state data in combination with the sewage flow state data correction value to obtain a sewage flow state data score, and performing coupling processing to obtain a sewage flow state index; the sewage flow state data include the inlet pipe sewage flow velocity, the inlet pipe flow fluctuation rate and the reaction tank liquid level amplitude, the preset sewage flow state data include the preset inlet pipe sewage flow velocity, the inlet pipe flow fluctuation rate and the reaction tank liquid level amplitude, the sewage flow state data correction value includes the inlet pipe sewage flow velocity correction value, the inlet pipe flow fluctuation rate correction value and the reaction tank liquid level amplitude correction value, the sewage flow state data score includes the inlet pipe sewage flow velocity score, the inlet pipe flow fluctuation rate score and the reaction tank liquid level amplitude score, the sewage flow state index represents quantitative data of the degree of influence of the sewage flow state data on the sewage flow continuity in the reaction tank stage, and the sewage flow state index is the coupling processing result of the inlet pipe sewage flow velocity score, the inlet pipe flow fluctuation rate score and the reaction tank liquid level amplitude score.

[0066] Among them, the inlet pipe sewage flow rate fraction The specific expression is: , where represents the sewage flow rate fraction of the inlet pipe corresponding to the reaction tank stage at the end of the port sewage flow state analysis period, Indicates the correction value of sewage flow rate in the inlet pipe, It represents the sewage flow rate in the inlet pipe corresponding to the reaction tank stage at the end of the port sewage flow state analysis period, It represents the preset inlet pipe sewage flow rate, which is represented by the sum and average of the historical inlet pipe sewage flow rates corresponding to the reaction tank stage at the end of the sewage flow status analysis period of each historical port in the database. The inlet pipe sewage flow rate is obtained by electromagnetic flow meter detection.

[0067] Inlet pipe flow volatility fraction The specific expression is: , where represents the inlet pipe flow fluctuation rate fraction corresponding to the reaction tank stage at the end of the port sewage flow state analysis period, Indicates the correction value of the inlet pipeline flow fluctuation rate, It represents the inlet pipe flow fluctuation rate corresponding to the reaction tank stage at the end of the port sewage flow state analysis period, It represents the preset inlet pipe flow fluctuation rate. The preset inlet pipe flow fluctuation rate is represented by the sum and average of the historical inlet pipe flow fluctuation rates of the corresponding reaction tank stage at the end of the sewage flow status analysis period of each historical port in the database. The inlet pipe flow fluctuation rate is obtained by electromagnetic flowmeter detection.

[0068] Reaction tank level amplitude fraction The specific expression is: , where It represents the liquid level amplitude fraction of the reaction tank corresponding to the reaction tank stage at the end of the port sewage flow state analysis period, Indicates the correction value of the liquid level amplitude of the reaction tank. It represents the liquid level amplitude of the reaction tank corresponding to the reaction tank stage at the end of the port sewage flow state analysis period. It represents the preset reaction tank liquid level amplitude. The preset reaction tank liquid level amplitude is represented by the sum and average of the historical reaction tank liquid level amplitudes of the corresponding reaction tank stage at the end of the sewage flow status analysis period of each historical port in the database. The reaction tank liquid level amplitude is obtained by a radar level meter.

[0069] Sewage flow status indicators The specific expression is: , where It indicates the sewage flow status index corresponding to the reaction tank stage at the end of the port sewage flow status analysis period.

[0070] In this embodiment, the correction value of the sewage flow rate of the inlet pipe, the correction value of the flow fluctuation rate of the inlet pipe and the correction value of the liquid level amplitude of the reaction tank are numerical values ​​preset in the database for measuring the degree of influence of the sewage flow rate of the inlet pipe, the flow fluctuation rate and the liquid level amplitude of the reaction tank on the acquisition of the sewage flow state index. The database stores corresponding correction values ​​for each parameter, and there is a preset mapping relationship between them, which can be one-to-one or many-to-one. In actual applications, the corresponding correction values ​​can be accurately obtained by inputting the real-time sewage flow rate of the inlet pipe, the flow fluctuation rate and the liquid level amplitude of the reaction tank, which provides a quantitative basis for evaluating the influence of the sewage flow state data on the continuity of the sewage flow in the reaction tank, and helps to accurately calculate the sewage flow state index. And the value range of these three correction values ​​is 0 to 1, and the sum of the three is equal to 1.

[0071] It should be noted that the sewage flow state index changes with the sewage flow velocity deviation in the inlet pipe (i.e. ), the inlet pipe flow fluctuation rate, and the increase of the liquid level amplitude in the reaction tank. Among them, the sewage flow velocity in the inlet pipe directly affects the flow fluctuation rate. The instantaneous change of the flow velocity will significantly increase the flow fluctuation rate, and the increase in the flow fluctuation rate will lead to uneven water inflow into the reaction tank, causing the liquid level fluctuation amplitude to expand; on the contrary, if the liquid level amplitude in the reaction tank changes due to liquid level control or external disturbance (such as pump start and stop), it will affect the sewage flow velocity stability in the inlet pipe through hydraulic reaction, further increasing the changing trend of the flow fluctuation rate. When the liquid level rises, if flow limiting measures are taken to reduce the flow rate, the flow fluctuation rate may increase. On the contrary, when the liquid level decreases, the flow rate needs to be increased to maintain the liquid volume balance.

[0072] By considering the above-mentioned mutual influence mechanism, we can have a more comprehensive understanding of the relationship between sewage flow state indicators and various variables. These relationships are crucial for accuracy assessment in the process of obtaining sewage flow state indicators. By optimizing the sewage flow velocity in the inlet pipe, the inlet pipe flow fluctuation rate and the liquid level amplitude in the reaction tank, the efficiency of closed-loop coordinated control of sewage parameters in the reaction tank when blockage occurs in the biochemical treatment stage is improved, thereby effectively solving the problem of low efficiency of closed-loop coordinated control of sewage parameters in the reaction tank when blockage occurs in the biochemical treatment stage.

[0073] Furthermore, it is determined whether to perform intelligent speed regulation optimization. The specific steps are to compare the obtained sewage flow state index with the sewage flow state index preset in the database: if the obtained sewage flow state index is greater than the sewage flow state index preset in the database, the obtained port sewage flow state analysis result will be recorded as the port sewage flow state is unqualified and intelligent speed regulation optimization will be performed; if the obtained sewage flow state index is not greater than the sewage flow state index preset in the database, the obtained port sewage flow state analysis result will be recorded as the port sewage flow state is qualified and sewage pressure collaborative control analysis will be performed.

[0074] Among them, the specific steps of intelligent speed regulation optimization are: the harmonic average result of the obtained sewage flow state index deviation and the inlet turbidity deviation is recorded as the first flow adjustment value to adjust the retractable compartment length of the buffer tank at the connection point once, the sewage flow state index deviation represents the difference between the obtained sewage flow state index and the sewage flow state index preset in the database, the inlet turbidity deviation is the result after de-unitization processing, and the value range is usually between 0 and 1, which represents the difference between the inlet turbidity obtained at the end of the port sewage flow state analysis period and the inlet turbidity preset in the database; after one adjustment, it is judged that the obtained Whether the reduction range of the obtained sewage flow state index deviation is within the reduction range preset in the database, if so, the intelligent speed regulation optimization is completed and the sewage pressure coordinated control analysis is carried out; otherwise, the harmonic average result of the sewage flow state index deviation and the inlet turbidity deviation obtained again after the first adjustment is recorded as the second flow adjustment value to make a secondary adjustment to the gate height of the port sewage pipe inlet; if the sewage flow state index obtained again after the secondary adjustment is greater than the sewage flow state index preset in the database, an inlet flow warning is issued, otherwise the intelligent speed regulation optimization is completed and the sewage pressure coordinated control analysis is carried out.

[0075] In this embodiment, the inlet turbidity is obtained by a light scattering turbidity sensor, and the inlet turbidity preset in the database is represented by the sum and average of the historical inlet turbidities at the end of the historical port sewage flow state analysis period. The reduction amplitude of the sewage flow state index deviation represents the difference between the sewage flow state index deviation obtained after the intelligent speed regulation optimization and the sewage flow state index deviation obtained before the intelligent speed regulation optimization. The preset reduction amplitude range represents the closed interval corresponding to the maximum and minimum values ​​of the reduction amplitude of the historical sewage flow state index deviation obtained after the historical intelligent speed regulation optimization in the database.

[0076] The first flow adjustment value refers to the retractable compartment length adjustment value in the buffer tank adaptive algorithm. The algorithm adjusts the volume in the buffer tank through the input first flow adjustment value, and outputs the retractable compartment length result, which is used to smooth low-frequency fluctuations and thus improve the control response; the second flow adjustment value refers to the inlet gate height adjustment value in the dual PID control algorithm. The algorithm adjusts the inlet gate height through the liquid level deviation in the pool, and outputs the inlet gate height adjustment result, thereby improving the stability of the liquid level.

[0077] This example first jointly controls the buffer tank compartment length based on the sewage flow state and the inlet turbidity deviation, quickly smoothing out the impact of water flow fluctuations and turbidity mutations, and reducing the risk of flow instability. If the deviation reduction after the first adjustment does not meet expectations, the secondary adjustment gate will highly finely control the inlet flow. Combined with the two-stage adjustment mechanism, that is, the coordination of compartments and gates, it effectively suppresses abnormal fluctuations in flow state indicators under different load conditions and avoids sudden changes in water pressure or localized siltation. Abnormal results trigger flow warnings to intervene in extreme working conditions in a timely manner to prevent blockages or overflow accidents. After optimization, the system's adaptive ability is enhanced, reducing overshoot oscillations and energy waste in speed regulation operations while ensuring that sewage flow meets standards.

[0078] Furthermore, sewage pressure coordinated control analysis is performed based on the acquired sewage pressure coordinated data, and the specific steps are: comparing the acquired sewage pressure coordinated data with the preset sewage pressure coordinated data in the database for differences, and performing correction processing in combination with the sewage pressure coordinated data correction value to obtain the sewage pressure coordinated data score, and coupling the inverse proportional processing result of the microbial activity score with the pollutant concentration score and the turbidity change time score to obtain the sewage pressure coordinated index; the sewage pressure coordinated data includes the pollutant concentration, microbial activity and turbidity change time, the sewage pressure coordinated data correction value includes the pollutant concentration correction value, the microbial activity correction value and the turbidity change time correction value, the sewage pressure coordinated data score includes the pollutant concentration score, the microbial activity score and the turbidity change time score, the preset sewage pressure coordinated data includes the preset pollutant concentration, microbial activity and turbidity change time, and the sewage pressure coordinated index represents the quantitative data of the influence of the sewage pressure coordinated data on the pressure-flow coordination.

[0079] Among them, the pollutant concentration fraction The specific expression is: , where It represents the pollutant concentration fraction of the corresponding reaction tank stage at the end of the sewage pressure coordinated control analysis period, Indicates the pollutant concentration correction value, It represents the pollutant concentration of the corresponding reaction tank stage at the end of the sewage pressure coordinated control analysis period, It represents the preset pollutant concentration. The preset pollutant concentration is represented by the sum and average of the historical pollutant concentrations of the corresponding reaction tank stage at the end of each historical sewage pressure coordinated control analysis period in the database. The pollutant concentration is obtained by UV-Vis (Ultraviolet-visible spectroscopy, Uv-Vis) spectrometer detection.

[0080] Microbial activity fraction The specific expression is: , where It represents the microbial activity fraction of the corresponding reaction tank stage at the end of the sewage pressure coordinated control analysis period, represents the corrected value of microbial activity, It represents the microbial activity of the corresponding reaction tank stage at the end of the sewage pressure coordinated control analysis period, It represents the preset microbial activity, which is represented by the sum and average of the historical microbial activities of the corresponding reaction tank stage at the end of each historical sewage pressure coordinated control analysis period in the database. The microbial activity is obtained by detecting the dissolved oxygen consumed by the microorganisms in the reaction tank through a respirometer.

[0081] Turbidity change duration fraction The specific expression is: , where It represents the fraction of turbidity change duration corresponding to the reaction tank stage at the end of the sewage pressure coordinated control analysis period, Indicates the correction value of turbidity change duration. Indicates the duration of turbidity change in the corresponding reaction tank stage at the end of the sewage pressure coordinated control analysis period. It indicates the preset turbidity change duration, which is represented by the sum and average of the historical turbidity change durations of the corresponding reaction tank stage at the end of each historical sewage pressure coordinated control analysis period in the database. The turbidity change duration is obtained through a counter.

[0082] Sewage Pressure Synergy Index The specific expression is: , where It represents the coordinated index of the reactor wastewater pressure at the end of the wastewater pressure coordinated control analysis period corresponding to the reactor stage.

[0083] In this embodiment, the pollutant concentration correction value, microbial activity correction value, and turbidity change duration correction value are numerical values ​​preset in the database for quantifying the degree of influence of pollutant concentration, microbial activity, and turbidity change duration on the acquisition of the sewage pressure synergy index. The database stores corresponding correction values ​​for each parameter, and there is a preset mapping relationship between them, which can be one-to-one or many-to-one. In actual applications, the corresponding correction values ​​can be accurately obtained by inputting real-time pollutant concentration, microbial activity, and turbidity change duration, providing a quantitative basis for evaluating the impact of sewage pressure synergy data on pressure-flow synergy, so as to more accurately calculate the sewage pressure synergy index. Moreover, the value range of these three correction values ​​is 0 to 1, and the sum of the three is 1.

[0084] It should be noted that the sewage pressure synergistic index increases with the increase of pollutant concentration and turbidity change time, and decreases with the increase of microbial activity. Among them, the increase in pollutant concentration will stimulate the increase of heterotrophic microbial activity, accelerate the degradation of turbidity substances through organic matter decomposition, and reduce the time required for turbidity to decrease; but if the pollutant concentration exceeds the microbial metabolic threshold and toxic substances accumulate, the microbial activity will be reduced, resulting in a decrease in metabolic rate. At this time, undegraded pollutants continue to accumulate, the deposition or resuspension of turbidity substances intensifies, and the turbidity change time increases; microbial activity dominates the turbidity change efficiency: when the activity is high, the extracellular polymers secreted can promote flocculation and sedimentation, and accelerate the turbidity decrease; if the activity is insufficient, the flocs will decrease, the sedimentation rate will decrease, and the turbidity change will take longer; at the same time, the turbidity change time has a reverse effect on the system stability: the increase in turbidity change time causes uneven distribution of dissolved oxygen, restricts the microbial metabolic pathway, reduces microbial activity, and forms a feedback loop of degradation efficiency and turbidity control.

[0085] By considering the above-mentioned mutual influence mechanism, we can have a more comprehensive understanding of the relationship between the sewage pressure synergistic index and each variable. The accuracy assessment of these relationships is crucial in the process of obtaining the sewage pressure synergistic index. By optimizing the pollutant concentration, microbial activity and turbidity change duration, the efficiency of closed-loop synergistic control of sewage parameters in the reaction tank when blockage occurs in the biochemical treatment stage is improved, thereby effectively solving the problem of low efficiency of closed-loop synergistic control of sewage parameters in the reaction tank when blockage occurs in the biochemical treatment stage.

[0086] Furthermore, it is determined whether to perform separation and supply optimization. The specific steps are: comparing the obtained sewage pressure coordination index with the sewage pressure coordination index preset in the database: if the obtained sewage pressure coordination index is not greater than the sewage pressure coordination index preset in the database, the obtained sewage pressure coordination control analysis result is recorded as pressure-flow coordination qualified and the port sewage dynamic treatment control is completed; if the obtained sewage pressure coordination index is greater than the sewage pressure coordination index preset in the database, the obtained sewage pressure coordination control analysis result is recorded as pressure-flow coordination unqualified and separation and supply optimization is performed.

[0087] Among them, the specific steps of separation and replenishment optimization are: the harmonic average result of the obtained sewage pressure synergy index deviation and the pollutant metabolism efficiency deviation is recorded as the first synergistic adjustment value, so as to perform a synergistic adjustment on the power of the hydrocyclone in the reaction tank. The sewage pressure synergistic index deviation represents the difference between the obtained sewage pressure synergistic index and the sewage pressure synergistic index preset in the database. The pollutant metabolism efficiency deviation is the result after de-unitization processing, and the value range is usually between 0 and 1, which represents the difference between the pollutant metabolism efficiency obtained at the end of the sewage pressure synergistic control analysis period and the pollutant metabolism efficiency preset in the database; in a synergistic adjustment After the festival, determine whether the reduction range of the obtained sewage pressure synergy index is within the reduction range preset in the database. If so, complete the separation and supply optimization and re-perform the sewage pressure synergy control analysis. Otherwise, the harmonic average result of the sewage pressure synergy index deviation and the pollutant metabolic efficiency deviation obtained after the first synergy adjustment is recorded as the second synergy adjustment value to perform a second synergy adjustment on the chemical dosage in the reaction tank. If the sewage pressure synergy index obtained after the second synergy adjustment is greater than the sewage pressure synergy index preset in the database, an alarm is issued for the microbial pool. Otherwise, complete the separation and supply optimization and complete the dynamic treatment control of port sewage.

[0088] In this embodiment, the preset sewage pressure coordination index is represented by the result of summing and averaging the historical sewage pressure coordination indexes of the corresponding reaction tank stage at the end of each historical sewage pressure coordination control analysis period in the database. The pollutant metabolism efficiency is obtained by detection through a microbial electrochemical sensor. The preset pollutant metabolism efficiency is represented by the result of summing and averaging the historical pollutant metabolism efficiency of the corresponding reaction tank stage at the end of each historical sewage pressure coordination control analysis period in the database. The reduction amplitude of the sewage pressure coordination index represents the difference between the sewage pressure coordination index deviation obtained after separation and replenishment optimization and the sewage pressure coordination index deviation obtained before separation and replenishment optimization. The preset reduction amplitude range represents the closed interval corresponding to the maximum and minimum values ​​of the reduction amplitude of the historical sewage pressure coordination index deviation obtained after historical separation and replenishment optimization in the database.

[0089] The first collaborative adjustment value refers to the cyclone power adjustment value in the vortex core stability PID algorithm. The algorithm adjusts the cyclone power through the input of the first collaborative adjustment value, suppresses the pressure pulsation caused by the vortex core swing, outputs the cyclone power adjustment result, and thus improves the collaborative control efficiency; the second collaborative adjustment value refers to the chemical agent injection rate adjustment value in the turbidity feedback algorithm. The algorithm adjusts the microbial activity in the reaction tank through the input of the second collaborative adjustment value, outputs the chemical agent adjustment result, reduces the pipeline pressure, and thus improves the collaborative efficiency.

[0090] This example improves the efficiency of suspended solids capture by adjusting and optimizing the cyclone separation intensity to match the changes in hydraulic shock load. Secondly, the biochemical reaction rate is adjusted based on the interaction between the agent and microorganism to reduce the risk of floc structure damage and ensure the integrity of the pollutant degradation chain. It avoids the accumulation of biological toxicity caused by excessive dosage or the sedimentation backflow caused by insufficient separation pressure difference, enhances the cyclone separation accuracy and biochemical metabolic pathway stability under high shock load, and simultaneously reduces the equipment's no-load energy consumption and the risk of microbial system inactivation to ensure that water quality meets standards.

[0091] In summary, the embodiment of the present invention performs port sewage pipeline blockage analysis through the obtained filter medium pressure difference to determine whether to perform anti-oscillation frequency conversion optimization, and then determines whether to perform intelligent speed regulation optimization based on the port sewage flow state analysis results. Finally, sewage pressure collaborative control analysis is performed through the obtained sewage pressure collaborative data to determine whether to perform separation and supply optimization, thereby achieving an improvement in the efficiency of closed-loop collaborative control of sewage parameters in the reaction tank when blockage occurs in the biochemical treatment stage, and effectively solving the problem of low efficiency of closed-loop collaborative control of sewage parameters in the reaction tank when blockage occurs in the biochemical treatment stage.

[0092] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Thus, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0093] The present invention is described with reference to flowcharts and / or block diagrams of systems, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowcharts and / or block diagrams, as well as combinations of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowcharts and / or block diagrams. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0094] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0095] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0096] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0097] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A dynamic treatment control system for port sewage based on pressure feedback and flow coordination, characterized by: include: Port sewage pipe blockage analysis module, port sewage flow state analysis module and sewage pressure coordinated control analysis module; The port sewage pipe blockage analysis module is used to analyze the port sewage pipe blockage based on the obtained filter medium pressure difference, and determine whether to perform anti-oscillation frequency conversion optimization; The port sewage flow state analysis module is used to analyze the port sewage flow state based on the acquired sewage flow state data when the port sewage pipeline is not blocked, and to determine whether to perform intelligent speed regulation optimization; The sewage pressure collaborative control analysis module is used to perform sewage pressure collaborative control analysis based on the acquired sewage pressure collaborative data after the port sewage flow state is qualified, and at the same time determine whether to perform separation and recharge optimization; The specific steps of determining whether to perform anti-oscillation frequency conversion optimization include: Compare the obtained filter medium pressure difference with the filter medium pressure difference preset in the database: If the obtained filter medium pressure difference is greater than the filter medium pressure difference preset in the database, the obtained port sewage pipe blockage analysis result is recorded as port sewage pipe blockage and anti-oscillation overshoot optimization is performed; If the obtained filter medium pressure difference is not greater than the filter medium pressure difference preset in the database, the obtained port sewage pipe blockage analysis result is recorded as the port sewage pipe is not blocked and the port sewage flow state analysis is performed.

2. The port sewage dynamic treatment control system based on pressure feedback and flow coordination according to claim 1 is characterized in that: The specific steps of the anti-oscillation overshoot optimization are: A first pressure adjustment value is obtained by mapping the obtained filter medium pressure difference deviation in a database to perform a correction on the pump power of the port sewage pipeline; After the first correction, it is determined whether the obtained reduction in the filter medium pressure difference deviation is within the reduction range preset in the database. If so, an anti-oscillation overshoot optimization is completed and the port sewage flow state analysis is performed. Otherwise, a second pressure adjustment value is obtained by mapping the filter medium pressure difference deviation obtained after the first anti-oscillation overshoot optimization in the database, and a second correction is performed on the filter medium cleaning frequency. If the filter medium pressure difference obtained after the secondary correction is greater than the filter medium pressure difference preset in the database, frequency conversion adjustment optimization is performed; otherwise, the secondary anti-oscillation overshoot optimization is completed and the sewage flow state analysis is performed.

3. The port sewage dynamic treatment control system based on pressure feedback and flow coordination according to claim 2 is characterized in that: The specific steps of the frequency conversion adjustment optimization are: The frequency adjustment value of the variable frequency pump obtained after the anti-oscillation overshoot optimization is used to reduce the water pressure on both sides of the port sewage pipeline. The variable frequency pump frequency adjustment value represents the result of mapping the filter medium pressure difference re-obtained after the anti-oscillation overshoot optimization in the database; If the filter medium pressure difference obtained after the frequency conversion adjustment optimization is greater than the filter medium pressure difference preset in the database, a frequency conversion pump warning is issued; otherwise, the anti-oscillation frequency conversion optimization is completed and the sewage flow state analysis is performed.

4. The port sewage dynamic treatment control system based on pressure feedback and flow coordination according to claim 1 is characterized in that: The specific steps of performing port sewage flow state analysis based on the acquired sewage flow state data include: The acquired sewage flow state data is compared with the sewage flow state data preset in the database for difference, and correction processing is performed in combination with the sewage flow state data correction value to obtain the sewage flow state data score, and coupled processing is performed to obtain the sewage flow state index; The sewage flow state data includes the inlet pipe sewage flow velocity, the inlet pipe flow fluctuation rate and the reaction tank liquid level amplitude; the sewage flow state data correction value includes the inlet pipe sewage flow velocity correction value, the inlet pipe flow fluctuation rate correction value and the reaction tank liquid level amplitude correction value; the sewage flow state data score includes the inlet pipe sewage flow velocity score, the inlet pipe flow fluctuation rate score and the reaction tank liquid level amplitude score; the sewage flow state index represents the quantitative data of the degree of influence of the sewage flow state data on the sewage flow continuity in the reaction tank stage.

5. The port sewage dynamic treatment control system based on pressure feedback and flow coordination according to claim 4 is characterized in that: The specific steps of determining whether to perform intelligent speed regulation optimization include: Compare the obtained sewage flow status indicators with the sewage flow status indicators preset in the database: If the obtained sewage flow state index is greater than the sewage flow state index preset in the database, the obtained port sewage flow state analysis result will be recorded as the port sewage flow state unqualified and intelligent speed regulation optimization will be performed; If the obtained sewage flow state index is not greater than the sewage flow state index preset in the database, the obtained port sewage flow state analysis result will be recorded as the port sewage flow state is qualified and the sewage pressure coordinated control analysis will be performed.

6. The port sewage dynamic treatment control system based on pressure feedback and flow coordination according to claim 5 is characterized in that: The specific steps of the intelligent speed regulation optimization are: The harmonic mean result of the obtained sewage flow state index deviation and the inlet turbidity deviation is recorded as the first flow adjustment value to adjust the length of the retractable compartment of the buffer tank at the connection point once; After the first adjustment, determine whether the reduction in the obtained sewage flow state indicator deviation is within the reduction range preset in the database. If so, complete the intelligent speed regulation optimization and perform sewage pressure coordinated control analysis. Otherwise, record the harmonic average result of the sewage flow state indicator deviation and the inlet turbidity deviation re-obtained after the first adjustment as the second flow adjustment value to perform a second adjustment on the gate height of the port sewage pipe inlet; If the sewage flow state index obtained again after the secondary adjustment is greater than the sewage flow state index preset in the database, an inlet flow warning is issued; otherwise, the intelligent speed regulation optimization is completed and the sewage pressure coordinated control analysis is performed.

7. The port sewage dynamic treatment control system based on pressure feedback and flow coordination according to claim 1 is characterized in that: The sewage pressure collaborative control analysis is performed based on the acquired sewage pressure collaborative data, and the specific steps are as follows: The obtained sewage pressure synergy data is compared with the preset sewage pressure synergy data in the database for difference, and the sewage pressure synergy data correction value is combined for correction processing to obtain the sewage pressure synergy data score. The inverse proportional processing result of the microbial activity score is coupled with the pollutant concentration score and the turbidity change duration score to obtain the sewage pressure synergy index; The sewage pressure synergy data includes pollutant concentration, microbial activity and turbidity change time. The sewage pressure synergy data correction value includes the pollutant concentration correction value, the microbial activity correction value and the turbidity change time correction value. The sewage pressure synergy data score includes the pollutant concentration score, the microbial activity score and the turbidity change time score. The sewage pressure synergy index represents the quantitative data of the degree of influence of the sewage pressure synergy data on the pressure-flow synergy.

8. The port sewage dynamic treatment control system based on pressure feedback and flow coordination according to claim 7 is characterized in that: The specific steps of determining whether to perform separation and replenishment optimization are as follows: Compare the obtained sewage pressure coordination index with the sewage pressure coordination index preset in the database: If the obtained sewage pressure coordination index is not greater than the sewage pressure coordination index preset in the database, the obtained sewage pressure coordination control analysis result is recorded as qualified pressure-flow coordination and the port sewage dynamic treatment control is completed; If the obtained sewage pressure coordination index is greater than the sewage pressure coordination index preset in the database, the obtained sewage pressure coordination control analysis result will be recorded as pressure-flow coordination failure and separate supply optimization will be performed.

9. The port sewage dynamic treatment control system based on pressure feedback and flow coordination according to claim 8 is characterized in that: The specific steps of the separation and replenishment optimization are: The harmonic mean result of the obtained sewage pressure synergy index deviation and the pollutant metabolism efficiency deviation is recorded as the first synergy adjustment value to perform a synergy adjustment on the hydrocyclone power in the reaction tank; After one coordinated adjustment, determine whether the reduction range of the obtained sewage pressure coordinated index is within the reduction range preset in the database. If so, complete the separation and replenishment optimization and re-perform the sewage pressure coordinated control analysis. Otherwise, record the harmonic average result of the sewage pressure coordinated index deviation and the pollutant metabolic efficiency deviation re-obtained after the first coordinated adjustment as the second coordinated adjustment value to perform a second coordinated adjustment on the chemical dosage in the reaction tank. If the sewage pressure coordination index obtained again after the secondary coordinated adjustment is greater than the sewage pressure coordination index preset in the database, an alarm is issued in the microbial pool; otherwise, the separation and replenishment optimization is completed and the dynamic treatment control of the port sewage is completed.

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