CN111302471A - Intelligent dosage method for environmental emergency drug-dissolving dephosphorization and integrated device thereof - Google Patents
Intelligent dosage method for environmental emergency drug-dissolving dephosphorization and integrated device thereof Download PDFInfo
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- 230000007613 environmental effect Effects 0.000 title claims abstract description 26
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- 239000003814 drug Substances 0.000 claims abstract description 86
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 75
- 239000011574 phosphorus Substances 0.000 claims abstract description 75
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 75
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- 238000003756 stirring Methods 0.000 claims abstract description 47
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- 239000002131 composite material Substances 0.000 claims abstract description 9
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
- B01F25/52—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle with a rotary stirrer in the recirculation tube
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
- B01F27/72—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/714—Feed mechanisms for feeding predetermined amounts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/71775—Feed mechanisms characterised by the means for feeding the components to the mixer using helical screws
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/005—Processes using a programmable logic controller [PLC]
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Abstract
The invention discloses an intelligent dosing method for environmental emergency dissolved medicine dephosphorization, which comprises the steps of firstly collecting the inlet phosphorus content of a water source to be treated, determining the feed-forward dosing amount according to the inlet phosphorus content, then adopting a low-level medicine feeding and high-level stirring water discharging mode to fully mix a medicine material with water, then collecting the outlet phosphorus content at a water discharging port, feeding back the outlet phosphorus content to a control system, obtaining a medicine material compensation value by the control system through machine autonomous learning and model training according to feedback data, and using the compensation value for dephosphorization dosing control. The method utilizes AI mathematical modeling, adopts a composite controller combining fuzzy technology and a conventional PID control algorithm, and adopts a control strategy of feedforward plus feedback to realize automatic control of dephosphorization and dosing and reduce operation cost; the integrated device can realize rapid modularized assembly, can adapt to various field conditions, is convenient to move, can meet the requirement of rapidly constructing the site of an environment-friendly river dosing emergency project engineering, has high emergency response speed, and saves manpower and material resources.
Description
Technical Field
The invention relates to the technical field of water source pollution prevention and treatment, in particular to an intelligent dosage method for environmental emergency medicine dissolving and phosphorus removal and an integrated device thereof.
Background
The phosphorus contained in the domestic sewage mainly comes from the following sources: excrement from sewer pipes, discarded food, and other various detergents. If the sewage is not treated with phosphorus with high content, eutrophication of the water body is easily caused, and serious pollution is brought.
When water flow in a certain river reach is polluted in an emergency, various medicaments need to be added in an emergency for emergency treatment, so that the serious consequences of environmental, economic, life safety, international influence and the like are avoided. The general method consumes a large amount of manpower and material resources, and has poor timeliness. The integrated standard emergency equipment with the quick moving function is blank in China. The polluted condition of the river reach water flow is complex, the fluctuation is large, and the excessive discharge risk is high; often, the medicament is excessively added, the control hysteresis is obvious, and the high pressure required by operators is large.
Therefore, a method and a device need to be developed, which are used for meeting the requirement of site quick construction of an environment-friendly river dosing emergency project engineering, can adapt to various field conditions, are convenient to move, can be quickly assembled in a modularized mode, and can be used for realizing an intelligent dephosphorization dosing automatic control method.
Disclosure of Invention
The invention aims to provide an intelligent dosing method for environmental emergency drug-dissolving dephosphorization and an integrated device thereof, wherein the method utilizes AI mathematical modeling, adopts a composite controller combining fuzzy technology and conventional PID control algorithm, and a feedforward and feedback control strategy, and trains a water body sewage purification model through machine autonomous learning and data analysis, thereby realizing automatic control of dephosphorization and dosing and reducing operation cost; the integrated device can realize rapid modularized assembly, can adapt to various field conditions, is convenient to move, can meet the requirement of rapidly constructing the site of an environment-friendly river dosing emergency project engineering, has high emergency response speed, and saves manpower and material resources.
The technical scheme is as follows:
an intelligent dosage method for environmental emergency drug-dissolving dephosphorization comprises the following steps:
(1) the intelligent control terminal system and the environment emergency medicine dissolving integrated device controlled by the intelligent control terminal system are arranged near the water source to be treated, and the environment emergency medicine dissolving integrated device comprises a mixing mechanism, a reservoir arranged near the water source to be treated, a water pumping mechanism for pumping the water source to be treated to the mixing mechanism, a feeding mechanism for conveying medicine materials to the mixing mechanism from a low position and a circulating mechanism for circularly pumping the water in the reservoir to the mixing mechanism; the intelligent control terminal system comprises a data acquisition unit and a control system; the control system comprises a feedforward unit and a fuzzy feedback unit;
(2) the intelligent control terminal system collects the content of the imported phosphorus of the water source to be treated through the data acquisition unit and transmits the content to the control system of the intelligent control terminal system;
(3) a feedforward unit of the control system determines the feedforward dosing amount of a unit water source to be treated according to the content of the phosphorus in the inlet and outputs an execution instruction to a pumping mechanism and a feeding mechanism;
(4) the water pumping mechanism and the feeding mechanism send the wheel of water source to be treated and the required medicine material to the mixing mechanism for stirring and mixing;
(5) when the water inflow and the materials of the water source to be treated of the wheel reach the standard, if the materials in the mixing mechanism are not consumed completely, the control system controls the water pumping mechanism and the feeding mechanism to be closed, and the circulating mechanism is started to pump the water in the reservoir to the mixing mechanism for circulating and stirring until the materials in the wheel are consumed completely;
(6) the intelligent control terminal system collects the content of phosphorus at an outlet of a drainage port of the water storage tank through a data collection unit, and transmits and feeds back the content of phosphorus to a control system of the intelligent control terminal system;
(7) and the fuzzy feedback unit of the control system performs training of a water body sewage purification model through machine autonomous learning and data analysis according to feedback data to obtain a drug control quantity compensation value, and further uses the obtained drug control quantity compensation value for sewage real-time dephosphorization and dosing control to achieve the real-time matching of the dephosphorization and dosing speed and quantity with the water body purification requirement, so that the water body is discharged after reaching the standard.
It also includes the following steps:
(8) and arranging an upper computer real-time monitoring system to electrically connect the control system with the upper computer real-time monitoring system, monitoring the running state of the intelligent control terminal system by the monitoring system, and triggering sound-light alarm if abnormity occurs to prompt a worker to timely eliminate the abnormity.
It also includes the following steps:
(9) a cloud server system is arranged and is respectively in network connection with the intelligent control terminal system and the real-time monitoring system of the upper computer; the cloud server system is provided with an autonomous learning data analysis system which is a sewage phosphorus-adding purification dynamic data analysis processing system based on machine deep learning and comprises a dynamic data receiving module, a data feature extraction module, a data imaging module, a data deep learning module and a data autonomous decision-making module, wherein the data imaging module establishes a sewage phosphorus-adding purification data training model based on a water fluid dynamics model according to data features acquired by the data feature extraction module; the data deep learning module establishes a mapping model between data corresponding to a dosing mode and environment and process parameters according to the data acquired by the dynamic data receiving module, the data autonomous decision-making module acquires optimal process parameters of dosing according to the mapping model established by the data deep learning module and feeds the optimal process parameters back to the intelligent control terminal system, and the intelligent control terminal system controls the environment emergency drug dissolving integrated device to execute dosing so as to finish intelligent purification operation of the water body.
The control system utilizes AI mathematical modeling, adopts a composite controller combining a fuzzy technology and a conventional PID control algorithm, and adopts a control strategy of feedforward plus feedback to realize automatic control of dephosphorization and dosing; the feed-forward unit comprises a feed-forward model, a setting unit and a feed-forward controller, the feed-forward unit determines the feed-forward dosage, the fuzzy feedback unit consists of a fuzzy system, the outlet phosphorus content, the inlet water flow and the inlet phosphorus content are used as the input of the fuzzy system, and the compensation value of the medicine control quantity is output; the reasoning process of the fuzzy system comprises the following steps of firstly, calculating domain values of various conditions of a fuzzy rule antecedent according to three input variable values of outlet phosphorus content, inlet phosphorus content and inlet water flow; the initial conclusion is deduced from the antecedents by fuzzy implication operation using the minimum algorithm proposed by Mamdani; synthesizing a final conclusion by using a fuzzy synthesis rule; a central method is used in the defuzzification process, and the conversion from the fuzzy quantity output by the system to the numerical value output is realized.
The environment emergency medicine dissolving integrated device for implementing the dephosphorization intelligent dosing method comprises a mixing mechanism, a support frame, an intelligent control terminal system, a reservoir arranged near a water source to be treated, a pumping mechanism for pumping the water source to be treated to the mixing mechanism, a feeding mechanism for conveying medicine materials from a low position to the mixing mechanism and a circulating mechanism for circularly pumping the water of the reservoir to the mixing mechanism, wherein the mixing mechanism is arranged on one side of the reservoir through the support frame, the mixing mechanism comprises a stirring barrel and a drainage pipeline, a drainage outlet of the stirring barrel is arranged to the reservoir through the drainage pipeline, a drainage regulating valve is arranged in the drainage pipeline, a pumping flowmeter is arranged on the pumping mechanism, the feeding mechanism is provided with a medicine feeding flowmeter, and the mixing mechanism, the pumping mechanism, the feeding mechanism, the circulating mechanism, the drainage regulating valve, The water pumping flow meter and the medicine adding flow meter are respectively electrically connected with the intelligent control terminal system.
Mixing mechanism still includes propeller blade, agitator motor, compounding support, agitator motor are installed respectively on the compounding support, propeller blade installs in the agitator, agitator motor with the propeller blade transmission is connected, agitator motor with intelligent control terminal system electric connection.
The mechanism of drawing water includes suction pump, drinking-water pipeline, filter screen, the suction pump passes through the drinking-water pipeline respectively with the upper end of agitator, treat to administer the water source intercommunication, the filter screen is installed the suction pump toward treating to administer the water source the front end of drinking-water pipeline, the suction pump with intelligent control terminal system electric connection.
The feeding mechanism comprises a feeding support, a feeding hopper, a feeding pipeline, a feeding motor and a feeding screw rod, wherein the feeding hopper, the feeding pipeline and the feeding motor are respectively installed on the feeding support, the feeding hopper is communicated with a feeding hole of the feeding pipeline, a discharging hole of the feeding pipeline is communicated with the upper end of the stirring barrel, a dosing flowmeter is installed at a discharging hole of the feeding pipeline, the feeding screw rod is installed in the feeding pipeline, the feeding motor is in transmission connection with the feeding screw rod, and the feeding motor is in electric connection with the intelligent control terminal system.
The circulation mechanism comprises a water circulation pump and a circulation pipeline, the water circulation pump is communicated with the upper end of the stirring barrel and the reservoir through the circulation pipeline respectively, and the water circulation pump is electrically connected with the intelligent control terminal system.
The intelligent control terminal system comprises a data acquisition unit and a control system, wherein the water pumping flow meter and the medicine adding flow meter are respectively electrically connected with the data acquisition unit, the mixing mechanism, the water pumping mechanism, the feeding mechanism and the circulating mechanism are respectively electrically connected with the control system, the control system comprises a feedforward unit and a fuzzy feedback unit, the feedforward unit comprises a feedforward model, a setting unit and a feedforward controller, and the fuzzy feedback unit comprises a fuzzy system.
The system comprises a water pumping mechanism, a water storage tank, a water inlet mechanism, a water outlet mechanism, a water.
The following illustrates the advantages or principles of the invention:
1. the invention provides an intelligent dosage method for environmental emergency dephosphorization dissolving medicine, which is characterized in that an intelligent control terminal system and an environmental emergency medicine dissolving integrated device controlled by the intelligent control terminal system are arranged near a water source to be treated, a data acquisition unit of the intelligent control terminal system is used for acquiring the inlet phosphorus content of the water source to be treated, and a feedforward unit of a control system determines the feedforward dosage of a unit water source to be treated according to the inlet phosphorus content; the method comprises the following steps of (1) fully mixing the medicines and water by adopting a low-level medicine feeding and high-level stirring water discharging mode, and pumping the water in a reservoir to a mixing mechanism by adopting a circulating mechanism for circulating stirring until the medicines in the wheel are completely consumed if the medicines are not completely consumed; the mixing consumption of the medicine materials is controlled by the PLC program to calculate the water inlet quantity to control the feeding speed, control the mixing speed and control the water outlet speed, so as to achieve the optimal proportion; after the round of medicine materials are consumed, the intelligent control terminal system collects the content of phosphorus at an outlet of a drainage port of the water storage tank through the data collection unit and feeds the content of phosphorus to a control system of the intelligent control terminal system; a fuzzy feedback unit of the control system utilizes AI mathematical modeling according to feedback data, a composite controller combining fuzzy technology and a conventional PID control algorithm is adopted, and a control strategy of feedforward and feedback is adopted to realize automatic control of phosphorus and medicine addition.
2. The invention monitors the operation condition of the intelligent control terminal system by arranging the upper computer real-time monitoring system, thereby improving the operation safety of the system.
3. The cloud server system is arranged, real-time data and historical data are stored by using the cloud, and an intelligent control terminal system is continuously improved to an intelligent control center database.
4. According to the invention, effective estimation is carried out on other factors influencing the dephosphorization process through the fuzzy system, effective compensation can be carried out on the control action, a feedforward control link is constructed on the basis of a dephosphorization dosing model, the outlet phosphorus content, the inlet water flow and the inlet phosphorus content are used as the input of the fuzzy system, and a control quantity compensation value is output; the introduction of the compensation value enables the system to have certain self-adaptive capacity, and is beneficial to eliminating the interference of the subsequent dephosphorization process.
5. The invention provides an environmental emergency medicine dissolving integrated device, which comprises a mixing mechanism, a support frame, an intelligent control terminal system, a reservoir arranged near a water source to be treated, a water pumping mechanism for pumping the water source to be treated to the mixing mechanism, a feeding mechanism for conveying medicine materials from a low position to the mixing mechanism and a circulating mechanism for circularly pumping the water of the reservoir to the mixing mechanism, wherein the reservoir is used for storing water in a mixing and stirring process, the height of the support frame is based on the height of the reservoir, a water outlet of the mixing mechanism is higher than that of the reservoir, when in use, the integrated device is firstly arranged near the water source to be treated, then the medicine materials required by the water source to be treated are configured according to the phosphorus content of an inlet of the water source to be treated, the medicine materials are conveyed into the mixing mechanism by the low position of the feeding mechanism, the water pumping mechanism is used for pumping the water source to be treated into the mixing mechanism, and the mixing mechanism is in, fully mixing the medicine materials with water, and if the medicine materials are not completely consumed, pumping the water in the water storage tank to the mixing mechanism by using a circulating mechanism for circulating and stirring until the medicine materials in the wheel are completely consumed; the PLC program of the intelligent control terminal system calculates the water inflow to control the feeding speed, control the mixing speed and control the water outflow speed to achieve the optimal proportion; the integrated device can realize rapid modularized assembly, can adapt to various field conditions, is convenient to move, can meet the requirement of rapidly constructing the site of an environment-friendly river dosing emergency project engineering, has high emergency response speed, and saves manpower and material resources.
6. The mixing mechanism also comprises a mixing barrel, a drainage pipeline, a screw blade, a stirring motor and a mixing bracket, wherein the stirring motor drives the screw blade to fully mix and stir the medicine and water and then discharge the medicine and the water; the mixing mechanism can adjust the frequency conversion speed and control the water yield and the mixing ratio.
7. The water pumping mechanism comprises a water pump, a water pumping pipeline and a filter screen, wherein the filter screen is used for isolating large-particle impurities and preventing the water pump from being blocked.
8. The feeding mechanism comprises a feeding support, a feeding hopper, a feeding pipeline, a feeding motor and a feeding screw rod, wherein the feeding mechanism adopts a screw rod feeding mode, and the feeding motor rotates and is matched with the feeding screw rod to feed medicine into a stirring barrel of the mixing mechanism, so that the low-position medicine feeding and the high-position water discharging modes are realized, and the medicine and water are fully mixed.
9. The circulating mechanism comprises a circulating water pump and a circulating pipeline, and the circulating mechanism utilizes the circulating water pump to pump water in the water storage tank into the stirring barrel of the mixing mechanism, so that the water in the water storage tank and the medicine materials which are not consumed by the stirring barrel are repeatedly and circularly stirred.
10. The intelligent control terminal system comprises a data acquisition unit and a control system, wherein the control system comprises a feedforward unit and a fuzzy feedback unit, the control system utilizes AI mathematical modeling, adopts a composite controller combining fuzzy technology and a conventional PID control algorithm, and adopts a feedforward and feedback control strategy to realize automatic control of dephosphorization and dosing, the control system has an autonomous learning function, an intelligent control center database is continuously perfected by analyzing real-time data and historical data, a dephosphorization process is continuously and accurately controlled, the dephosphorization intelligent dosage is realized, and the operation cost is reduced. Preferably, the intelligent control terminal system is also provided with a fault monitoring function, a data feedback function, a manual/automatic switching function and an I/0 monitoring function; and (3) feeding back all data by using a display touch screen, wherein the data comprises fault alarm, signal connection, action flow and manual/automatic switching.
11. The data acquisition unit respectively acquires the inlet phosphorus content, the outlet phosphorus content and the inlet water flow of the integrated device through the inlet total phosphorus on-line analyzer, the outlet total phosphorus analyzer and the water pumping flowmeter, and the acquired contents are used as the input of a fuzzy system and output a drug control quantity compensation value.
Drawings
Fig. 1 is a schematic perspective view of an environmental emergency drug dissolving integrated device according to an embodiment of the present invention.
Fig. 2 is a simplified control flow chart of the intelligent control terminal system of the environmental emergency drug dissolving integrated device in the embodiment of the present invention.
Fig. 3 is a schematic perspective view of a mixing mechanism of an environmental emergency drug dissolving integrated device according to an embodiment of the present invention.
Fig. 4 is a schematic perspective view of a water pumping mechanism of the environmental emergency drug dissolving integrated device according to the embodiment of the invention.
Fig. 5 is a schematic perspective view of a feeding mechanism of the environmental emergency medicine dissolving integrated device in the embodiment of the invention.
Fig. 6 is a schematic perspective view of a circulation mechanism of the environmental emergency drug dissolving integrated device according to the embodiment of the invention.
Description of reference numerals:
10. the system comprises a mixing mechanism, 11, a stirring barrel, 12, a drainage pipeline, 121, a drainage regulating valve, 13, a propeller blade, 14, a stirring motor, 15, a mixing support, 20, a support frame, 30, an intelligent control terminal system, 31, a data acquisition unit, 32, a control system, 321, a feed-forward unit, 3211, a feed-forward model, 3212, a setting unit, 3213, a feed-forward controller, 322, a fuzzy feedback unit, 3221, a fuzzy system, 40, a reservoir, 50, a pumping mechanism, 51, a water pump, 52, a water pumping pipeline, 60, a feeding mechanism, 61, a feeding support, 62, a feeding hopper, 63, a feeding pipeline, 64, a feeding motor, 65, a feeding screw rod, 70, a circulating mechanism, 71, a circulating water pump, 72, a circulating pipeline, 81, a water pumping flowmeter, 82, a dosing flowmeter, 83, an inlet total phosphorus online analyzer, 84 and a water outlet total phosphorus analyzer.
Detailed Description
The following provides a detailed description of embodiments of the invention.
Referring to fig. 1 and 2, the invention provides an intelligent dosage method for environmental emergency drug-dissolving dephosphorization, which comprises the following steps:
step 1, arranging an intelligent control terminal system 30 and an environment emergency medicine dissolving integrated device controlled by the intelligent control terminal system near a water source to be treated, wherein the environment emergency medicine dissolving integrated device comprises a mixing mechanism 10, a water storage tank 40 placed near the water source to be treated, a water pumping mechanism 50 for pumping the water source to be treated to the mixing mechanism 10, a feeding mechanism 60 for conveying medicine materials to the mixing mechanism 10 from a low position, and a circulating mechanism 70 for circularly pumping water in the water storage tank 40 to the mixing mechanism 10; the intelligent control terminal system 30 comprises a data acquisition unit 31 and a control system 32; the control system 32 includes a feedforward unit 321 and a fuzzy feedback unit 322;
step 2, the intelligent control terminal system 30 collects the content of the inlet phosphorus of the water source to be treated through the data collection unit 31 and transmits the content to the control system 32 of the intelligent control terminal system 30;
step 3, the feedforward unit 321 of the control system 32 determines the feedforward dosing amount of the unit water source to be treated according to the content of the phosphorus in the inlet, and outputs an execution instruction to the water pumping mechanism 50 and the feeding mechanism 60;
step 4, the water pumping mechanism 50 and the feeding mechanism 60 send the wheel of water source to be treated and the required medicine materials to the mixing mechanism 10 for stirring and mixing;
step 5, when the water inflow and the materials of the water source to be treated of the wheel reach the standard, if the materials in the mixing mechanism 10 are not consumed, the control system 32 controls the water pumping mechanism 50 and the feeding mechanism 60 to be closed, and starts the circulating mechanism 70, and the water in the water storage tank 40 is pumped to the mixing mechanism 10 to be circularly stirred until the materials of the wheel are consumed;
step 6, the intelligent control terminal system 30 collects the content of phosphorus at an outlet of a water discharge port of the water reservoir 40 through the data collection unit 31, and transmits and feeds back the content of phosphorus to the control system 32 of the intelligent control terminal system 30;
and 7, training a water body sewage purification model by a fuzzy feedback unit 322 of the control system 32 through machine autonomous learning and data analysis according to feedback data to obtain a drug control quantity compensation value, and further using the obtained drug control quantity compensation value for sewage real-time dephosphorization and dosing control to achieve the real-time matching of the dephosphorization and dosing speed and quantity with the water body purification requirement, so that the water body is discharged after reaching the standard after purification.
The method comprises the steps that an intelligent control terminal system 30 and an environment emergency medicine dissolving integrated device controlled by the intelligent control terminal system are arranged near a water source to be treated, a data acquisition unit 31 of the intelligent control terminal system 30 is used for acquiring the content of phosphorus at the inlet of the water source to be treated, and a feedforward unit 321 of a control system 32 is used for determining the feedforward medicine adding amount of the water source to be treated according to the content of the phosphorus at the inlet; the method comprises the following steps of (1) fully mixing the medicines and water by adopting a low-level medicine feeding and high-level stirring water discharging mode, and if the medicines are not completely consumed, pumping the water in the water storage tank 40 to the mixing mechanism 10 by adopting a circulating mechanism 70 for circulating and stirring until the medicines in the wheel are completely consumed; the mixing consumption of the medicine materials is controlled by the PLC program to calculate the water inlet quantity to control the feeding speed, control the mixing speed and control the water outlet speed, so as to achieve the optimal proportion; after the round of medicine materials are completely consumed, the intelligent control terminal system 30 collects the content of phosphorus at the outlet of the water discharging port of the water storage tank 40 through the data collecting unit 31 and feeds the content of phosphorus to the control system 32 of the intelligent control terminal system 30; a fuzzy feedback unit 322 of the control system 32 utilizes AI mathematical modeling according to feedback data, adopts a composite controller combining fuzzy technology and a conventional PID control algorithm, and adopts a control strategy of feedforward and feedback to realize automatic control of dephosphorization and dosing, the control system 32 trains a water body sewage purification model through autonomous learning of a machine and data analysis, and continuously perfects an intelligent control center database through analyzing real-time data and historical data, accurately calculates a compensation value of the control quantity of the explosive, continuously optimizes and accurately controls a dephosphorization process, realizes intelligent dosage of dephosphorization and reduces the operation cost.
The method further comprises the following steps:
and 8, setting an upper computer real-time monitoring system to electrically connect the control system 32 with the upper computer real-time monitoring system, wherein the monitoring system monitors the running condition of the intelligent control terminal system 30, and triggers sound and light alarm to prompt a worker to timely eliminate the abnormity if the abnormity occurs.
The invention monitors the operation condition of the intelligent control terminal system 30 by arranging the upper computer real-time monitoring system, thereby improving the operation safety of the system.
The method further comprises the following steps:
step 9, setting a cloud server system which is respectively connected with the intelligent control terminal system 30 and the upper computer real-time monitoring system through a network; the cloud server system is provided with an autonomous learning data analysis system which is a sewage phosphorus-adding purification dynamic data analysis processing system based on machine deep learning and comprises a dynamic data receiving module, a data feature extraction module, a data imaging module, a data deep learning module and a data autonomous decision-making module, wherein the data imaging module establishes a sewage phosphorus-adding purification data training model based on a water fluid dynamics model according to data features acquired by the data feature extraction module; the data deep learning module establishes a mapping model between data corresponding to a dosing mode and environment and process parameters according to the data acquired by the dynamic data receiving module, the data autonomous decision-making module acquires optimal process parameters of dosing according to the mapping model established by the data deep learning module and feeds the optimal process parameters back to the intelligent control terminal system 30, and the intelligent control terminal system controls the environment emergency drug dissolving integrated device to execute dosing so as to finish intelligent purification operation of the water body.
The cloud server system is arranged, real-time data and historical data are stored in a cloud mode, and an intelligent control center database is continuously perfected for the intelligent control terminal system 30.
A control system 32 of the method utilizes AI mathematical modeling, adopts a composite controller combining a fuzzy technology and a conventional PID control algorithm, and adopts a feedforward and feedback control strategy to realize automatic control of dephosphorization and dosing; the feedforward unit 321 comprises a feedforward model 3211, a setting unit 3212 and a feedforward controller 3213, the feedforward unit 321 determines the feedforward dosing amount, the fuzzy feedback unit 322 is composed of a fuzzy system 3221, the outlet phosphorus content, the inlet water flow and the inlet phosphorus content are used as the input of the fuzzy system 3221, and the compensation value of the medicine control amount is output; the reasoning process of the fuzzy system 3221 is as follows, firstly, according to three input variable values of the outlet phosphorus content, the inlet phosphorus content and the inlet water flow, the domain values of various conditions of the front piece of the fuzzy rule are calculated; the initial conclusion is deduced from the antecedents by fuzzy implication operation using the minimum algorithm proposed by Mamdani; synthesizing a final conclusion by using a fuzzy synthesis rule; a central method is used in the defuzzification process, and the conversion from the fuzzy quantity output by the system to the numerical value output is realized.
The feedforward model 3211 in the feedforward section 321 is determined by:
M＝b1×Q+b2×(P1-PS)+b3×Q×(P1-PS)+b4×(P1-PS)2+b5×Q×(P1-PS)2+b6×(P1-PS)3+Δk
in the formula: b 1-b 6 are constants;
m is the required dosing flow rate, M3/h;
q is inlet water flow, m 3/h;
p1 is the concentration of the imported phosphorus content, mg/L;
PS is an export phosphorus content set value, mg/L;
Δ k is the compensated output flow value of the fuzzy system 3221, m 3/h;
the value of bn (n is 1, 2, 3, 4, 5, 6) in the formula can be determined according to actual conditions;
the output Δ k of the fuzzy feedback unit 322 is determined by:
Δk＝k1×UBP+b
in the formula, k1 is a proportionality coefficient, and the value in this embodiment is 0.0119; b is a constant, in this example the value is-0.1163; UBP is the fuzzy system 3221 output;
the fuzzy system 3221 is composed of an output phosphorus content UTP, an inlet water flow UFL and an inlet phosphorus content UCP as the input of the fuzzy system 3221, and the output of the fuzzy system 3221 is a control quantity compensation value UBP; the argument domains of the input and output variables are as follows according to actual values: UTP ═ a1, B1, C1, … }, UFL ═ a2, B2, C2, … }, UCP ═ A3, B3, C3, … }, UBP ═ a4, B4, C4, … }; the number of input and output variables and the value and discourse domain of each variable of the fuzzy system 3221 may be adjusted according to different situations; selecting the shape of a membership function according to the actual variables; establishing a fuzzy rule base of the system according to the actual working condition; analyzing the value of each input variable and carrying out fuzzy quantization;
import phosphorus content: the argument domain of the import phosphorus content is UTP ═ low, medium and high }; wherein the content of imported phosphorus is lower than 3mg/L, is medium between 3 and 7mg/L, and is ultrahigh more than 7 mg/L;
inlet water flow rate: the maximum instantaneous inlet water flow and the normal instantaneous inlet water flow are within the regulation of 2000m3/h and belong to low water flow; in the inlet water flow between 2000 and 4000m3/h, the inlet water flow exceeding 4000m3/h is high; therefore, the value argument UFL of the inlet water flow is { low, medium, high };
the content of phosphorus at the outlet: according to the discharge standard (less than or equal to 1mg/L), the content of phosphorus at the outlet is less than or equal to 0.3mg/L, the content is medium between 0.3 and 0.7mg/L, and the content is high more than 0.7 mg/L; the value argument field UCP of the input variable is { low, medium, high };
control amount compensation value: the compensation value is negative and large between-3 Hz and-1.75 Hz, the compensation value is negative between-1.75 Hz and-0.5 Hz, the compensation value is zero between-0.5 Hz and 0.5Hz, the compensation value is positive between 0.5Hz and 1.75Hz, and the compensation value is positive and large between 1.75Hz and 3 Hz; therefore, the argument domain UBP of the control quantity compensation value is { negative large, negative, zero, positive large };
selecting the type and the parameter of the membership function according to actual requirements by each variable, and establishing the membership function which is consistent with the actual situation; determining the membership function mainly adopts an expert determination method; combining and simplifying the rules according to the actual situation to obtain a fuzzy rule table shown as table one; the fuzzy rule table can be flexibly adjusted according to the number of input and output variables of the actual system and the value argument field thereof;
table-fuzzy rule table
According to the invention, effective estimation is carried out on other factors influencing the dephosphorization process through the fuzzy system 3221, effective compensation can be carried out on the control action, a feedforward control link is constructed on the basis of a dephosphorization dosing model, the content of the outlet phosphorus, the flow of the inlet water and the content of the inlet phosphorus are used as the input of the fuzzy system 3221, and a control quantity compensation value is output; the introduction of the compensation value enables the system to have certain self-adaptive capacity, and is beneficial to eliminating the interference of the subsequent dephosphorization process.
Referring to fig. 1 to 6, the invention provides an environmental emergency medicine dissolving integrated device, which comprises a mixing mechanism 10, a support frame 20, an intelligent control terminal system 30, a water reservoir 40 disposed near a water source to be treated, a water pumping mechanism 50 for pumping the water source to be treated to the mixing mechanism 10, a feeding mechanism 60 for conveying medicine materials from a low position to the mixing mechanism 10, and a circulating mechanism 70 for circularly pumping water in the water reservoir 40 to the mixing mechanism 10, wherein the mixing mechanism 10 is mounted at one side of the water reservoir 40 through the support frame 20, the mixing mechanism 10 comprises a stirring barrel 11 and a drainage pipeline 12, a water outlet of the stirring barrel 11 is discharged to the water reservoir 40 through the drainage pipeline 12, a drainage regulating valve 121 is arranged in the drainage pipeline 12, a water pumping flow meter 81 is arranged on the water pumping mechanism 50, a medicine adding flow meter 82 is arranged on the feeding mechanism 60, the mixing mechanism 10, the water pumping mechanism 50, the, The drainage regulating valve 121, the water pumping flow meter 81 and the dosing flow meter 82 are electrically connected with the intelligent control terminal system 30 respectively.
The water reservoir 40 is used for storing water in the mixing and stirring process, the height of the supporting frame 20 is based on the height of the water reservoir 40, the water outlet of the mixing mechanism 10 is higher than that of the water reservoir 40, when in use, the integrated device is firstly arranged near a water source to be treated, then medicine materials required by the water source to be treated are configured according to the content of phosphorus at the inlet of the water source to be treated, the medicine materials are fed into the mixing mechanism 10 at a low position by the feeding mechanism 60, the water source to be treated is pumped into the mixing mechanism 10 by the water pumping mechanism 50, the medicine materials and the water are fully mixed by the high-position stirring and water discharging mode of the mixing mechanism 10, if the medicine materials are not consumed, the water in the water reservoir 40 is pumped to the mixing mechanism 10 by the circulating mechanism 70 for circular stirring until the medicine materials; the PLC program of the intelligent control terminal system 30 calculates the water inflow to control the feeding speed, control the mixing speed and control the water outflow speed to achieve the optimal proportion; the integrated device can realize rapid modularized assembly, can adapt to various field conditions, is convenient to move, can meet the requirement of rapidly constructing the site of an environment-friendly river dosing emergency project engineering, has high emergency response speed, and saves manpower and material resources.
Wherein, mixing mechanism 10 still includes propeller blade 13, agitator motor 14, compounding support 15, and agitator 11, agitator motor 14 are installed respectively on compounding support 15, and propeller blade 13 is installed in agitator 11, and agitator motor 14 is connected with propeller blade 13 transmission, agitator motor 14 and intelligent control terminal system 30 electric connection. The stirring motor 14 drives the propeller blade 13 to fully mix and stir the medicine and the water and then discharge the medicine and the water, a drainage regulating valve 121 is arranged in the drainage pipeline 12, and the water yield is controlled by the drainage regulating valve 121 in proportion until the medicine is consumed and mixed; the mixing mechanism 10 can adjust the frequency conversion speed and control the water yield and the mixing ratio.
The water pumping mechanism 50 comprises a water pumping pump 51, a water pumping pipeline 52 and a filter screen, the water pumping pump 51 is communicated with the upper end of the stirring barrel 11 and a water source to be treated through the water pumping pipeline 52, the filter screen is installed at the front end of the water pumping pipeline 52 from the water pumping pump 51 to the water source to be treated, and the water pumping pump 51 is electrically connected with the intelligent control terminal system 30. The filter screen is used for completely cutting off large granule debris, prevents that suction pump 51 from blockking up.
The circulating mechanism 70 comprises a circulating water pump 71 and a circulating pipeline 72, the circulating water pump 71 is respectively communicated with the upper end of the stirring barrel 11 and the water storage tank 40 through the circulating pipeline 72, and the circulating water pump 71 is electrically connected with the intelligent control terminal system 30. The circulating mechanism 70 utilizes the circulating water pump 71 to pump the water in the water reservoir 40 into the stirring barrel 11 of the mixing mechanism 10, so that the water in the water reservoir 40 and the medicine materials which are not consumed in the stirring barrel 11 are repeatedly and circularly stirred.
The intelligent control terminal system 30 comprises a data acquisition unit 31 and a control system 32, wherein the water pumping flow meter 81 and the medicine adding flow meter 82 are respectively electrically connected with the data acquisition unit 31, the mixing mechanism 10, the water pumping mechanism 50, the feeding mechanism 60 and the circulating mechanism 70 are respectively electrically connected with the control system 32, the control system 32 comprises a feedforward unit 321 and a fuzzy feedback unit 322, the feedforward unit 321 comprises a feedforward model 3211, a setting unit 3212 and a feedforward controller 3213, and the fuzzy feedback unit 322 comprises a fuzzy system 3221. The control system 32 utilizes AI mathematical modeling, adopts a composite controller combining fuzzy technology and a conventional PID control algorithm, and adopts a control strategy of feedforward plus feedback to realize automatic control of dephosphorization and dosing, the control system 32 has an autonomous learning function, and continuously improves an intelligent control center database by analyzing real-time data and historical data, continuously optimizes and accurately controls a dephosphorization process, realizes dephosphorization intelligent dosing amount, and reduces operation cost. Preferably, the intelligent control terminal system 30 is further equipped with a fault monitoring function, a data feedback function, a manual/automatic switching function, and an I/0 monitoring function; and (3) feeding back all data by using a display touch screen, wherein the data comprises fault alarm, signal connection, action flow and manual/automatic switching.
The environment emergency medicine dissolving integrated device further comprises an inlet total phosphorus online analyzer 83 and an outlet total phosphorus analyzer 84, wherein the inlet total phosphorus online analyzer 83 is installed at a water inlet of the water pumping mechanism 50, the outlet total phosphorus analyzer 84 is installed at a water outlet of the water storage tank 40, and the inlet total phosphorus online analyzer 83 and the outlet total phosphorus analyzer 84 are respectively and electrically connected with the data acquisition unit 31. The data acquisition unit 31 of the present invention respectively acquires the inlet phosphorus content, the outlet phosphorus content and the inlet water flow rate of the integrated device through the inlet total phosphorus on-line analyzer 83, the outlet total phosphorus analyzer 84 and the water pumping flow meter 81 as the input of the fuzzy system 3221, and outputs the compensation value of the medicine control quantity.
The above are merely specific embodiments of the present invention, and the scope of the present invention is not limited thereby; any alterations and modifications without departing from the spirit of the invention are within the scope of the invention.
Claims (10)
1. An intelligent dosage method for environmental emergency drug-dissolving dephosphorization is characterized by comprising the following steps:
(1) the intelligent control terminal system and the environment emergency medicine dissolving integrated device controlled by the intelligent control terminal system are arranged near the water source to be treated, and the environment emergency medicine dissolving integrated device comprises a mixing mechanism, a reservoir arranged near the water source to be treated, a water pumping mechanism for pumping the water source to be treated to the mixing mechanism, a feeding mechanism for conveying medicine materials to the mixing mechanism from a low position and a circulating mechanism for circularly pumping the water in the reservoir to the mixing mechanism; the intelligent control terminal system comprises a data acquisition unit and a control system; the control system comprises a feedforward unit and a fuzzy feedback unit;
(2) the intelligent control terminal system collects the content of the imported phosphorus of the water source to be treated through the data acquisition unit and transmits the content to the control system of the intelligent control terminal system;
(3) a feedforward unit of the control system determines the feedforward dosing amount of a unit water source to be treated according to the content of the phosphorus in the inlet and outputs an execution instruction to a pumping mechanism and a feeding mechanism;
(4) the water pumping mechanism and the feeding mechanism send the wheel of water source to be treated and the required medicine material to the mixing mechanism for stirring and mixing;
(5) when the water inflow and the materials of the water source to be treated of the wheel reach the standard, if the materials in the mixing mechanism are not consumed completely, the control system controls the water pumping mechanism and the feeding mechanism to be closed, and the circulating mechanism is started to pump the water in the reservoir to the mixing mechanism for circulating and stirring until the materials in the wheel are consumed completely;
(6) the intelligent control terminal system collects the content of phosphorus at an outlet of a drainage port of the water storage tank through a data collection unit, and transmits and feeds back the content of phosphorus to a control system of the intelligent control terminal system;
(7) and the fuzzy feedback unit of the control system performs training of a water body sewage purification model through machine autonomous learning and data analysis according to feedback data to obtain a drug control quantity compensation value, and further uses the obtained drug control quantity compensation value for sewage real-time dephosphorization and dosing control to achieve the real-time matching of the dephosphorization and dosing speed and quantity with the water body purification requirement, so that the water body is discharged after reaching the standard.
2. The intelligent dosing method for environmental emergency drug-dissolving phosphorus removal as claimed in claim 1, further comprising the steps of:
(8) and arranging an upper computer real-time monitoring system to electrically connect the control system with the upper computer real-time monitoring system, monitoring the running state of the intelligent control terminal system by the monitoring system, and triggering sound-light alarm if abnormity occurs to prompt a worker to timely eliminate the abnormity.
3. The intelligent dosing method for environmental emergency drug-dissolving phosphorus removal as claimed in claim 2, further comprising the steps of:
(9) a cloud server system is arranged and is respectively in network connection with the intelligent control terminal system and the real-time monitoring system of the upper computer; the cloud server system is provided with an autonomous learning data analysis system which is a sewage phosphorus-adding purification dynamic data analysis processing system based on machine deep learning and comprises a dynamic data receiving module, a data feature extraction module, a data imaging module, a data deep learning module and a data autonomous decision-making module, wherein the data imaging module establishes a sewage phosphorus-adding purification data training model based on a water fluid dynamics model according to data features acquired by the data feature extraction module; the data deep learning module establishes a mapping model between data corresponding to a dosing mode and environment and process parameters according to the data acquired by the dynamic data receiving module, the data autonomous decision-making module acquires optimal process parameters of dosing according to the mapping model established by the data deep learning module and feeds the optimal process parameters back to the intelligent control terminal system, and the intelligent control terminal system controls the environment emergency drug dissolving integrated device to execute dosing so as to finish intelligent purification operation of the water body.
4. The intelligent dosage method for environmental emergency drug-dissolving phosphorus removal according to any one of claims 1 to 3, wherein the control system utilizes AI mathematical modeling, adopts a composite controller combining fuzzy technology and conventional PID control algorithm, and adopts a control strategy of feedforward plus feedback to realize automatic control of phosphorus removal and drug addition; the feed-forward unit comprises a feed-forward model, a setting unit and a feed-forward controller, the feed-forward unit determines the feed-forward dosage, the fuzzy feedback unit consists of a fuzzy system, the outlet phosphorus content, the inlet water flow and the inlet phosphorus content are used as the input of the fuzzy system, and the compensation value of the medicine control quantity is output; the reasoning process of the fuzzy system comprises the following steps of firstly, calculating domain values of various conditions of a fuzzy rule antecedent according to three input variable values of outlet phosphorus content, inlet phosphorus content and inlet water flow; the initial conclusion is deduced from the antecedents by fuzzy implication operation using the minimum algorithm proposed by Mamdani; synthesizing a final conclusion by using a fuzzy synthesis rule; a central method is used in the defuzzification process, and the conversion from the fuzzy quantity output by the system to the numerical value output is realized.
5. An environmental emergency medicine dissolving integrated device for implementing the dephosphorization intelligent dosing method according to any one of claims 1 to 4, which comprises a mixing mechanism, a support frame, an intelligent control terminal system, a water storage tank arranged near a water source to be treated, a water pumping mechanism for pumping the water source to be treated to the mixing mechanism, a feeding mechanism for conveying medicine materials from a low position to the mixing mechanism, and a circulating mechanism for pumping the water circulation of the water storage tank to the mixing mechanism, wherein the mixing mechanism is arranged at one side of the water storage tank through the support frame, the mixing mechanism comprises a stirring barrel and a drainage pipeline, a water outlet of the stirring barrel is arranged to the water storage tank through the drainage pipeline, a drainage regulating valve is arranged in the drainage pipeline, a water pumping flowmeter is arranged on the water pumping mechanism, the feeding mechanism is provided with a medicine adding flowmeter, and the mixing mechanism, the water pumping mechanism, the water, The feeding mechanism, the circulating mechanism, the water discharging regulating valve, the water pumping flowmeter and the medicine adding flowmeter are respectively electrically connected with the intelligent control terminal system.
6. The environment emergency medicine dissolving integrated device according to claim 5, wherein the mixing mechanism further comprises a propeller blade, a stirring motor and a mixing support, the stirring barrel and the stirring motor are respectively mounted on the mixing support, the propeller blade is mounted in the stirring barrel, the stirring motor is in transmission connection with the propeller blade, and the stirring motor is electrically connected with the intelligent control terminal system.
7. The environmental emergency medicine dissolving integrated device according to claim 5, wherein the water pumping mechanism comprises a water pump, a water pumping pipeline and a filter screen, the water pump is respectively communicated with the upper end of the stirring barrel and the water source to be treated through the water pumping pipeline, the filter screen is installed at the front end of the water pumping pipeline from the water pump to the water source to be treated, and the water pump is electrically connected with the intelligent control terminal system.
8. The environmental emergency drug dissolution integrated device according to claim 5, wherein the feeding mechanism comprises a feeding support, a feeding hopper, a feeding pipeline, a feeding motor and a feeding screw rod, the feeding hopper, the feeding pipeline and the feeding motor are respectively mounted on the feeding support, the feeding hopper is communicated with a feeding port of the feeding pipeline, a discharging port of the feeding pipeline is communicated with the upper end of the stirring barrel, the drug adding flowmeter is mounted at the discharging port of the feeding pipeline, the feeding screw rod is mounted in the feeding pipeline, the feeding motor is in transmission connection with the feeding screw rod, and the feeding motor is electrically connected with the intelligent control terminal system.
9. The environment emergency medicine dissolving integrated device according to claim 5, wherein the circulation mechanism comprises a circulation water pump and a circulation pipeline, the circulation water pump is respectively communicated with the upper end of the stirring barrel and the water storage tank through the circulation pipeline, and the circulation water pump is electrically connected with the intelligent control terminal system.
10. The environmental emergency integrated drug dissolving device according to any one of claims 5 to 9, wherein the intelligent control terminal system comprises a data acquisition unit and a control system, the water pumping flowmeter and the drug adding flowmeter are respectively electrically connected with the data acquisition unit, the mixing mechanism, the water pumping mechanism, the feeding mechanism and the circulating mechanism are respectively electrically connected with the control system, the control system comprises a feedforward unit and a fuzzy feedback unit, the feedforward unit comprises a feedforward model, a setting unit and a feedforward controller, and the fuzzy feedback unit comprises a fuzzy system.
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