CN106774222A - Municipal sewage treatment digitizes accuracy-control system and Intelligent Simulation Method - Google Patents
Municipal sewage treatment digitizes accuracy-control system and Intelligent Simulation Method Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 90
- 239000010865 sewage Substances 0.000 title claims abstract description 61
- 238000004088 simulation Methods 0.000 title claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 238000004891 communication Methods 0.000 claims abstract description 22
- 238000004458 analytical method Methods 0.000 claims abstract description 19
- 238000013523 data management Methods 0.000 claims abstract description 14
- 238000005457 optimization Methods 0.000 claims abstract description 5
- 230000015271 coagulation Effects 0.000 claims abstract description 3
- 238000005345 coagulation Methods 0.000 claims abstract description 3
- 238000012800 visualization Methods 0.000 claims description 13
- 238000007405 data analysis Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 9
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 7
- 229910052698 phosphorus Inorganic materials 0.000 claims description 7
- 239000011574 phosphorus Substances 0.000 claims description 7
- 230000002159 abnormal effect Effects 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000007639 printing Methods 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 230000007774 longterm Effects 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 239000010802 sludge Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 238000004065 wastewater treatment Methods 0.000 claims description 5
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 4
- 238000005273 aeration Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 230000033116 oxidation-reduction process Effects 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 2
- 241000196324 Embryophyta Species 0.000 description 15
- 238000005516 engineering process Methods 0.000 description 5
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- 235000008434 ginseng Nutrition 0.000 description 2
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- 239000000463 material Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
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- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
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- 239000004744 fabric Substances 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/41875—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by quality surveillance of production
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention discloses a kind of municipal sewage treatment digitlization accuracy-control system and Intelligent Simulation Method, including pretreatment section PLC control system, biological section PLC control system, DCS robot control system(RCS)s, analysis data management system and Intelligent Simulation System, communication connection is set up by EPA between each system；The data of DCS robot control system(RCS)s collection pretreatment section PLC control system and the data of biological section PLC control system；The control command of user is transferred to pretreatment section PLC control system and biological section PLC control system by DCS robot control system(RCS)s；Pretreatment section PLC control system gathers the instrumented data in coagulation stage in sewage treatment process and controls relevant device；Biological section PLC control system gathers the instrumented data in two stage treatment stage in sewage treatment process and controls relevant device.The present invention includes Intelligent Simulation System, can be digitized water treatment process and run digitlization with key equipment, and the two is combined closely, and completes water treatment procedure dynamic optimization, equipment and most effectively runs.
Description
Technical field
The invention belongs to technical field of sewage, a kind of municipal sewage treatment digitlization accuracy-control system is related generally to
And Intelligent Simulation Method.
Background technology
Since reform and opening-up, China's urban wastewater treatment industry entry fast development phase, urban wastewater treatment is used as municipal administration
Basic industry, obtains significant progress, treatment facility quantity rapid growth first.But each place is only focused at municipal sewage
The construction of reason factory quantity is built without focusing on energy-conservation and technology platform lifting, with operation cost（It is the energy, raw material, artificial）No
It is disconnected to go up so that the operating cost of municipal sewage plant is continuously increased, in addition cause a collection of sewage treatment plant can not be normal
Operating.
The existing municipal sewage plant's technological means of China more falls behind, and the technological design of traditional industry is by a specified future date
Technique is designed, it is considered to future development, least favorable time point hour operating mode, safety coefficient etc. key element, it is determined that maximum operation is negative
Lotus（Power generating system）, therefore the state of design is static.And in actual production process, each key element is dynamic change；Often
In individual dynamic operation condition（Power demand）It is how many, no technological means is implemented in existing conventional industries technology,
Thus power generating system provides power also according to maximum operating load, and this is current conventional industries technology platform common fault,
It is the too high main cause of current conventional industries energy consumption, material consumption.
Process for town sewage treatment is a kind of extremely complex biological treatment process, if do not known by long-term theory
Know training and put into practice, engineer is that hardly possible rationally efficiently runs sewage treatment plant.Therefore, most of municipal sewage plant is all
There are lacking professional operation personnel, lack that specialized technical management personnel, operating cost is high, maintenance work.
Current sewage disposal system it is conventional by industrial computer（Host computer）Stood with some PLC（Slave computer）The automation of composition
Control system, host computer and slave computer typically carry out data exchange by Ethernet or other communication modes.Host computer is general
It is arranged in the central control room of sewage treatment plant, is responsible for the operation of full plant and the collection of data, stores and check, under
The all devices and instrument of position machine PLC Station To Station point ranges are individually managed, and are grasped except being automated according to user's setting program
Make outside the process control of equipment, order that host computer sends can also be received to perform the operation of equipment.But it is such automatic
Networked control systems are data acquisition and simple digital output modul, and automatic control level is relatively low, it is impossible to reference to specific
Technology establishment goes out the control strategy for more optimizing.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention provides a kind of municipal sewage treatment digitlization accuracy-control system and intelligence
Energy emulation mode, to realize to sewage treatment plant's field instrument data acquisition and intellectual analysis, the digitlization of live key equipment
Control, the system can make sewage disposal process optimize operation, improve equipment operating efficiency, realize saving energy consumption, material consumption and manpower
Purpose, with great dissemination.
The technical scheme is that：
A kind of municipal sewage treatment digitizes accuracy-control system, including pretreatment section PLC control system, biological section PLC controls
System, DCS robot control system(RCS)s, analysis data management system and Intelligent Simulation System, are set up between each system by EPA
Communication connection；
DCS robot control system(RCS)s are used to gather the data of pretreatment section PLC control system and the data of biological section PLC control system；DCS
The control command of user is transferred to pretreatment section PLC control system and biological section PLC control system by robot control system(RCS)；
Pretreatment section PLC control system is responsible for gathering the instrumented data in coagulation stage in sewage treatment process and controls the work
Equipment in skill section；
Biological section PLC control system is responsible for gathering the instrumented data in two stage treatment stage in sewage treatment process and controls the technique
Equipment in section；
Analysis data management system is used to store the water quality data that the laboratory personnel of sewage treatment plant chemically examine every time；
Intelligent Simulation System is used to build the digital simulation model of whole factory.
Preferably, described pretreatment section PLC control system includes PLC, analog quantity spread module, digital quantity
Expansion module, communication extension module, instrument kind equipment, frequency converter, pump apparatus and other plant equipment for lifting；
Described instrument kind equipment includes feed water flow gauge, water inlet PH meters, influent COD analyzer, influent ammonia nitrogen analyzer, water inlet
Measurement data is converted into 4-20MA letters by total phosphorus analyzer and several liquid level gauges and several liquid level difference meters, instrument kind equipment
Number, through analog quantity spread module transfer to PLC；
Described frequency converter is used to control the pump apparatus for being lifted, and frequency converter and communication module are set up by RS485 interfaces
Communication connection, frequency converter and digital expansion module are set up by I/O interface and communicated to connect；PLC passes through digital extended module
The I/O signal control frequency converter of offer, the RS485 signals and frequency converter that PLC is provided by communication extension module is led to
Letter；
Other described plant equipment include coarse rack machine, fine grid machine and Sand pump, and PLC passes through digital extended module
Control the start and stop of other plant equipment；
Described PLC is used for the measurement data of instrument kind equipment, pump apparatus and other plant equipment for lifting
Device status data upload, and according to the pre-programmed sequential logic procedure auto-control of user various equipment in foregoing
Operation.
Preferably, described biological section PLC control system includes that PLC, analog quantity spread module, digital quantity expand
Exhibition module, communication extension module, instrument kind equipment, frequency converter, for be aerated/flow back kind equipment and other plant equipment；
Described instrument kind equipment includes water flow meter, water outlet PH meters, water outlet COD analyzers, water outlet nh 3-n analyser, water outlet
Total phosphorus analyzer, online dissolved oxygen instrument, online transmissometer, on-line oxidation reduction potential meter and several liquid level gauges, meters set
It is standby that measurement data is converted into 4-20MA signals, through analog quantity spread module transfer to PLC；
Described frequency converter is used to adjust control for being aerated/flowing back kind equipment, and PLC is provided by digital extended module
I/O signal control frequency converter, the RS485 signals and frequency converter that PLC is provided by communication extension module communicated；
Other described plant equipment include residual sludge pump, mixer and movable motor, and PLC is expanded by by numeral
Module is opened up to realize the start and stop of equipment；
Described PLC is for the measurement data of instrument kind equipment, for be aerated/flow back kind equipment and other plant equipment
Device status data upload, and according to the pre-programmed sequential logic procedure auto-control of user various equipment in foregoing
Operation.
Preferably, described DCS robot control system(RCS)s pass through EPA to all of instrument data managing of Sewage Plant, institute
The working condition for having equipment is scheduled, and completes centralized operation, monitoring, record, report generation and printing, fault alarm and printing
Function；DCS robot control system(RCS)s include LCD display, and LCD display is used to intuitively show the real-time work of each operation stage of full factory
The trend picture of condition, each technological parameter.
Preferably, described analysis data management system is used to carry out the water quality data that laboratory personnel chemically examine every time
Storage, and variation of water is intuitively shown by curve and form.
Preferably, described Intelligent Simulation System includes that database server, instrumented data analysis module, parameter are visual
Change module, device emulation module, process simulation module and technique warning module, instrumented data analysis module, parameter visualization mould
Block, device emulation module, process simulation module and technique warning module are set up with database server communicate to connect respectively；
Described database server carries out data and leads to by EPA and DCS automatic systems and analysis data management system
Letter；
Described instrumented data analysis module be the water quality data chemically examined according to the measurement data of in-line meter and laboratory come point
Water quality situation of the analysis sewage in each process section；
Described parameter visualization model has been installed the ginseng of equipment by the technological parameter of the specific building of sewage treatment plant, reality
Number is entered into database, and a digitized Wastewater Treatment Parameters model is built according to these parameters；
Described device emulation module includes lifting pump apparatus, aeration kind equipment and backflow kind equipment, device emulation module root
Mathematical emulation module is built according to the service data of parameter visualization model and physical device, the requirement according to technique is accurately
The operational factor of control device；
Described process simulation module builds mathematical simulation model according to sewage treatment plant's technological principle, according to actual water
The water of matter and reality dynamically calculates the technological parameter of each process section, according to these technological parameters and bonding apparatus emulation
Module dynamic optimization water treatment procedure, it is ensured that stable effluent quality；
When described technique warning module is used to be gone beyond the scope when water quality and water or key equipment occurs abnormal, can pass through
Simulation model is quickly calculated, and the consequence that user will occur is informed exactly, and propose corresponding solution to user.
A kind of Intelligent Simulation Method that accuracy-control system is digitized based on municipal sewage treatment, it is characterised in that including
Following steps：
Step S1：Database table structure is set up, real time data table, chemical examination number of the database table structure by in-line meter and equipment
Constituted according to table, sewage treatment plant's actual process parameter table and the part of physical device parameter list four；
Step S2：Data inside parameter visualization model database table structure build the digital model of full factory, this mould
Type is the overall picture for showing full factory's structures in three dimensions, and all devices of the inside can be visually seen its device parameter and fortune
Row state, in-line meter data can also Dynamic Announce；
Step S3：According to sewage treatment plant's technological parameter, device parameter, the data and the chemical examination number of chambers of in-line meter actual monitoring
According to process simulation module dynamic calculation goes out the technological parameter of each process section, it is ensured that stable effluent quality is up to standard；
Step S4：Technological parameter is obtained according to step S3, device emulation module dynamic calculation each equipment needs the parameter of operation,
Parameter includes running frequency, run time, operation number of units, it is ensured that equipment is operated in optimal state, and by EPA
Equipment operational factor is sent to DCS robot control system(RCS)s, these Parameter Switch are issued PLC controls system by DCS robot control system(RCS)s into order
System, the method for operation of accurate adjusting device；
Step S5：Instrumented data analysis module dynamically analyzes the detection data and analysis data of in-line meter, when data are beyond pre-
After determining scope, it is necessary to adjusting process parameter and equipment operational factor, recalculated since step S3, performed repeatedly successively,
So as to ensure that effluent quality is stablized always, equipment long-term work is in optimum state；
Step S6：When water quality and water go beyond the scope or key equipment occurs abnormal, technique warning module is in time by failure
Information and corresponding solution inform user.
The beneficial effects of the invention are as follows：
（1）Municipal sewage treatment of the present invention digitizes accuracy-control system and its control method, and it includes intelligent simulation
, can be digitized for water treatment process well and run digitlization with key equipment, and realize the two closely by system
With reference to completion water treatment procedure dynamic optimization and equipment are most effectively run, it is ensured that stable water outlet is up to standard, and is brought to user
Huge economic benefit, realizes the purpose of energy-saving and emission-reduction；
（2）Municipal sewage treatment of the present invention digitizes accuracy-control system and its control method, and it can be according to reality
Operating mode carries out automatic operating regulation, even if there is exception, also can quickly inform customer solution, substantially increases artificial
Efficiency, is that user saves human cost；
（3）Municipal sewage treatment of the present invention digitizes accuracy-control system and its control method, can make equipment dynamic
Optimization operation, it is to avoid equipment long-term work improves equipment service life in full load condition, reduces maintenance of equipment rate.
Brief description of the drawings
Fig. 1 is overall system structure block diagram of the present invention；
Fig. 2 is the pretreatment section PLC control system connection diagram in Fig. 1；
Fig. 3 is the biological section PLC control system connection diagram in Fig. 1；
Fig. 4 is the Intelligent Simulation System structure chart in Fig. 1.
Specific embodiment
Referring to Fig. 1-4, the present invention provides a kind of accurate control of municipal sewage treatment digitlization to specific embodiment of the invention
System processed.
As shown in figure 1, the present invention provides a kind of municipal sewage treatment digitlization accuracy-control system, including pretreatment section
PLC control system, biological section PLC control system, DCS robot control system(RCS)s, analysis data management system and Intelligent Simulation System five
Part, the PROCESS FOR TREATMENT flow according to sewage treatment plant in pretreating process section, it is necessary to set a PLC control station conduct
Substation, a PLC control station is set as substation in biological treatment stage, and an industrial computer and one are set in central control room
Database server installs DCS robot control system(RCS)s, the installation data library software on database server as main website on industrial computer
And Intelligent Simulation System, an industrial computer is set in laboratory used as substation, analysis data management system is installed.Substation and master
After station installs, by netting twine and group of switches into internal lan, industrial ethernet protocol phase intercommunication is passed through between each system
Letter.
As shown in Fig. 2 pretreatment section PLC control system includes PLC, analog quantity spread module, digital quantity extension
Module, communication extension module, instrument kind equipment, frequency converter, pump apparatus and other plant equipment for lifting.At sewage
Mainly using physical treatment method, common equipment has elevator pump, grid, screen cloth, setting pot, Sha Shui to pretreatment stage in science and engineering skill
Separator etc., measuring instrument mainly has feed water flow gauge, water inlet PH meters, influent COD analyzer, influent ammonia nitrogen analyzer, water inlet
Total phosphorus analyzer and some liquid level gauges and liquid level difference meter.Described analog quantity spread module is used to gather pretreatment stage instrument
4-20mA electric current ring signals, actual instrumented data is converted into by range conversion；Described digital quantity expansion module, Ke Yiti
For Multipath digital quantity input and output signal, for the start and stop of the working condition and control device of collecting device；Described is used for
The pump apparatus of lifting are the crucial equipment of pretreatment stage, are also the maximum equipment of power consumption, and the rated power of configuration also compares
The larger RS485 signals and frequency converter for, it is necessary to increase frequency converter to protect control, being provided with communication extension module is communicated,
Running current, running frequency and the rotating speed of frequency converter can be gathered, it is also possible to adjust the running frequency of frequency converter；Described PLC
Controller is used for instrumented data and device status data is uploaded, and is controlled automatically according to the pre-programmed sequential logic program of user
The operation of control equipment.
As shown in figure 3, biological section PLC control system includes PLC, analog quantity spread module, digital quantity expanded mode
Block, communication extension module, instrument kind equipment, frequency converter, equipment and other plant equipment for being aerated backflow.In sewage disposal
Biological treatment stage mainly uses microbial treatment method in technique, and conventional handling process has AO techniques, AAO techniques, Ao Bei
You（Orbal）Oxidation ditch process etc., with opel（Orbal）As a example by oxidation ditch process, the technique common equipment has surface aerating machine, interior
Reflux pump, digestive juice reflux pump, movable motor etc..On oxidation ditch, measuring instrument mainly has online dissolved oxygen instrument, online turbidity
Instrument, on-line oxidation reduction potential meter and some liquid level gauges；At discharge outlet, measuring instrument mainly have water flow meter, PH meter,
COD analyzers, nh 3-n analyser, total phosphorus analyzer.Analog quantity spread module is used to gather all instrument of biological treatment stage
4-20mA electric current ring signals, actual instrumented data is converted into by range conversion；Described digital quantity expansion module, Ke Yiti
For Multipath digital quantity input and output signal, working condition and control device for gathering biological treatment stage all devices
Start and stop；Described is the crucial equipment of biological treatment stage for being aerated the equipment of backflow, is also the maximum equipment of power consumption, is matched somebody with somebody
The rated power put also than larger, it is necessary to increase frequency converter to protect control, the RS485 signals that are provided with communication extension module and
Frequency converter is communicated, and can gather running current, running frequency and the rotating speed of frequency converter, it is also possible to adjust the operation of frequency converter
Frequency；Described PLC is used for instrumented data and device status data is uploaded, and according to the pre-programmed sequential of user
The operation of logical program automatic control equipment.
DCS robot control system(RCS)s control to carry out by industrial ethernet protocol with pretreatment section PLC control system and biological section PLC
Communication, is acquired, stores and manages to all of instrumented data of Sewage Plant, and the working condition of all devices is scheduled, complete
Into the function such as centralized operation, monitoring, record, report generation and printing, fault alarm and printing.Can intuitively be shown by LCD
Real-time working condition, the trend picture of each technological parameter of each operation stage of full factory, make operating personnel grasp full factory's ruuning situation in time.
Analysis data management system is used to be stored the water quality data that laboratory personnel chemically examine every time, and by curve
Intuitively show variation of water with form.The basic parameter that laboratory needs are determined mainly has COD（COD）, it is biochemical
Oxygen demand（BOD）, suspended solid material（SS）, total phosphorus（TP）, total nitrogen（TN）, ammonia nitrogen（NH3-N）, nitrate nitrogen（NO3-N）、
Dissolved oxygen（DO）, sludge concentration（MLSS）, sludge settling ratio（SV30）And sludge volume index（SVI）Deng these parameters are to dirt
Water process operation is significant, and analysis data management system can found perfect archives for these parameters, and by industry
These parameters are sent to Intelligent Simulation System by Ethernet.
As shown in figure 4, Intelligent Simulation System includes database server, instrumented data analysis module, parameter visualization mould
Block, device emulation module, process simulation module and technique warning module.Instrumented data analysis module, parameter visualization model, set
Standby emulation module, process simulation module and technique warning module are set up with database server communicate to connect respectively.Database takes
Business device enters row data communication by EPA and DCS automatic systems and analysis data management system；Instrumented data analyzes mould
Block is to judge sewage disposal result by being analyzed to instrumented data and analysis data；Parameter visualization model be by
The technological parameter of the specific building of sewage treatment plant, the actual parameter for having installed equipment are entered into database, according to these ginsengs
Number builds a digitized Wastewater Treatment Parameters model；Device emulation module is to set the elevator pump class in sewage disposal process
Standby, aeration kind equipment, backflow class carry out mathematical modeling, the relational model set up between a set of technique and operational factor；Technique is imitated
True module is to build mathematical simulation model according to sewage treatment plant's technological principle, can be according to actual water quality and reality
Water dynamically calculates the technological parameter of each process section；Technique warning module be used to being gone beyond the scope when water quality and water or
When key equipment occurs abnormal, can quickly be calculated by simulation model, the consequence that user will occur be informed exactly, and give
User proposes corresponding solution.
A kind of Intelligent Simulation Method that accuracy-control system is digitized based on municipal sewage treatment, is comprised the following steps：
Step S1：Database table structure is set up, main real time data table, the change by in-line meter and equipment of the database table structure
Test tables of data, sewage treatment plant's actual process parameter table and the part of physical device parameter list four composition.
Step S2：Data inside parameter visualization model database table structure build the digital model of full factory, this
Individual model is the overall picture for showing full factory's structures in three dimensions, and all devices of the inside can be visually seen its device parameter
And running status, in-line meter data can also Dynamic Announce.
Step S3：According to sewage treatment plant's technological parameter, device parameter, the data of in-line meter actual monitoring and laboratory
Data, process simulation module dynamic calculation goes out the technological parameter of each process section, it is ensured that stable effluent quality is up to standard.
Step S4：Technological parameter is obtained according to step S3, each equipment needs operation of device emulation module dynamic calculation
Parameter, such as running frequency, run time, operation number of units, it is ensured that equipment is operated in optimal state, and by EPA
Equipment operational factor is sent to DCS robot control system(RCS)s, these Parameter Switch are issued PLC controls system by DCS robot control system(RCS)s into order
System, the method for operation of accurate adjusting device.
Step S5：Instrumented data analysis module dynamically analyzes the detection data and analysis data of in-line meter, when data are super
After going out preset range, it is necessary to adjusting process parameter and equipment operational factor, recalculated since step S3, held repeatedly successively
OK, so as to ensure that effluent quality is stablized always, equipment long-term work is in optimum state.
Step S6：When water quality and water go beyond the scope or key equipment occurs abnormal, technique warning module in time will
Fault message and corresponding solution inform user.
The present invention is not limited to above-mentioned implementation method, all to realize this hair using with similarity method of the present invention and system architecture
All modes of improving eyesight are within protection scope of the present invention.
Claims (6)
1. a kind of municipal sewage treatment digitlization accuracy-control system, it is characterised in that including pretreatment section PLC control system,
Biological section PLC control system, DCS robot control system(RCS)s, analysis data management system and Intelligent Simulation System, pass through work between each system
Industrial Ethernet sets up communication connection；
DCS robot control system(RCS)s are used to gather the data of pretreatment section PLC control system and the data of biological section PLC control system；DCS
The control command of user is transferred to pretreatment section PLC control system and biological section PLC control system by robot control system(RCS)；
Pretreatment section PLC control system is responsible for gathering the instrumented data in coagulation stage in sewage treatment process and controls the work
Equipment in skill section；
Biological section PLC control system is responsible for gathering the instrumented data in two stage treatment stage in sewage treatment process and controls the technique
Equipment in section；
Analysis data management system is used to store the water quality data that the laboratory personnel of sewage treatment plant chemically examine every time；
Intelligent Simulation System is used to build the digital simulation model of whole factory；
Described pretreatment section PLC control system includes PLC, analog quantity spread module, digital quantity expansion module, communication
Expansion module, instrument kind equipment, frequency converter, pump apparatus and other plant equipment for lifting；
Described instrument kind equipment includes feed water flow gauge, water inlet PH meters, influent COD analyzer, influent ammonia nitrogen analyzer, water inlet
Measurement data is converted into 4-20MA letters by total phosphorus analyzer and several liquid level gauges and several liquid level difference meters, instrument kind equipment
Number, through analog quantity spread module transfer to PLC；
Described frequency converter is used to control the pump apparatus for being lifted, and frequency converter and communication module are set up by RS485 interfaces
Communication connection, frequency converter and digital expansion module are set up by I/O interface and communicated to connect；PLC passes through digital extended module
The I/O signal control frequency converter of offer, the RS485 signals and frequency converter that PLC is provided by communication extension module is led to
Letter；
Other described plant equipment include coarse rack machine, fine grid machine and Sand pump, and PLC passes through digital extended module
Control the start and stop of other plant equipment；
Described PLC is used for the measurement data of instrument kind equipment, pump apparatus and other plant equipment for lifting
Device status data upload, and according to the pre-programmed sequential logic procedure auto-control of user various equipment in foregoing
Operation.
2. municipal sewage treatment according to claim 1 digitizes accuracy-control system, it is characterised in that described biology
Section PLC control system includes PLC, analog quantity spread module, digital quantity expansion module, communication extension module, meters
Equipment, frequency converter, for be aerated/flow back kind equipment and other plant equipment；
Described instrument kind equipment includes water flow meter, water outlet PH meters, water outlet COD analyzers, water outlet nh 3-n analyser, water outlet
Total phosphorus analyzer, online dissolved oxygen instrument, online transmissometer, on-line oxidation reduction potential meter and several liquid level gauges, meters set
It is standby that measurement data is converted into 4-20MA signals, through analog quantity spread module transfer to PLC；
Described frequency converter is used to adjust control for being aerated/flowing back kind equipment, and PLC is provided by digital extended module
I/O signal control frequency converter, the RS485 signals and frequency converter that PLC is provided by communication extension module communicated；
Other described plant equipment include residual sludge pump, mixer and movable motor, and PLC is expanded by by numeral
Module is opened up to realize the start and stop of equipment；
Described PLC is for the measurement data of instrument kind equipment, for be aerated/flow back kind equipment and other plant equipment
Device status data upload, and according to the pre-programmed sequential logic procedure auto-control of user various equipment in foregoing
Operation.
3. municipal sewage treatment according to claim 2 digitizes accuracy-control system, it is characterised in that described DCS
Robot control system(RCS) is scheduled by EPA to the working condition of all of instrument data managing of Sewage Plant, all devices,
Complete the function of centralized operation, monitoring, record, report generation and printing, fault alarm and printing；DCS robot control system(RCS)s include LCD
Display, LCD display is used to intuitively show real-time working condition, the trend picture of each technological parameter of each operation stage of full factory.
4. municipal sewage treatment according to claim 3 digitizes accuracy-control system, it is characterised in that described chemical examination
Data management system is used to be stored the water quality data that laboratory personnel chemically examine every time, and is intuitively opened up by curve and form
Show variation of water.
5. municipal sewage treatment according to claim 4 digitizes accuracy-control system, it is characterised in that described intelligence
Analogue system includes that database server, instrumented data analysis module, parameter visualization model, device emulation module, technique are imitated
True module and technique warning module, instrumented data analysis module, parameter visualization model, device emulation module, process simulation mould
Block and technique warning module are set up with database server communicate to connect respectively；
Described database server carries out data and leads to by EPA and DCS automatic systems and analysis data management system
Letter；
Described instrumented data analysis module is used to analyze sewage quality situation；
Described parameter visualization model records the technique of the specific building of sewage treatment plant, the actual parameter for having installed equipment
Enter to database, a digitized Wastewater Treatment Parameters model is built according to these parameters；
Described device emulation module includes lifting pump apparatus, aeration kind equipment and backflow kind equipment, device emulation module root
Mathematical emulation module is built according to the service data of parameter visualization model and physical device, the requirement according to technique is accurately
The operational factor of control device；
Described process simulation module builds mathematical simulation model according to sewage treatment plant's technological principle, according to actual water
The water of matter and reality dynamically calculates the technological parameter of each process section, according to these technological parameters and bonding apparatus emulation
Module dynamic optimization water treatment procedure, it is ensured that stable effluent quality；
When described technique warning module is used to be gone beyond the scope when water quality and water or key equipment occurs abnormal, can pass through
Simulation model is quickly calculated, and the consequence that user will occur is informed exactly, and propose corresponding solution to user.
6. a kind of municipal sewage treatment based on described in claim 5 digitizes the Intelligent Simulation Method of accuracy-control system, its
It is characterised by, comprises the following steps：
Step S1：Database table structure is set up, real time data table, chemical examination number of the database table structure by in-line meter and equipment
Constituted according to table, sewage treatment plant's actual process parameter table and the part of physical device parameter list four；
Step S2：Data inside parameter visualization model database table structure build the digital model of full factory, this mould
Type is the overall picture for showing full factory's structures in three dimensions, and all devices of the inside can be visually seen its device parameter and fortune
Row state, in-line meter data can also Dynamic Announce；
Step S3：According to sewage treatment plant's technological parameter, device parameter, the data and the chemical examination number of chambers of in-line meter actual monitoring
According to process simulation module dynamic calculation goes out the technological parameter of each process section, it is ensured that stable effluent quality is up to standard；
Step S4：Technological parameter is obtained according to step S3, device emulation module dynamic calculation each equipment needs the parameter of operation,
Parameter includes running frequency, run time, operation number of units, it is ensured that equipment is operated in optimal state, and by EPA
Equipment operational factor is sent to DCS robot control system(RCS)s, these Parameter Switch are issued PLC controls system by DCS robot control system(RCS)s into order
System, the method for operation of accurate adjusting device；
Step S5：Instrumented data analysis module dynamically analyzes the detection data and analysis data of in-line meter, when data are beyond pre-
After determining scope, it is necessary to adjusting process parameter and equipment operational factor, recalculated since step S3, performed repeatedly successively,
So as to ensure that effluent quality is stablized always, equipment long-term work is in optimum state；
Step S6：When water quality and water go beyond the scope or key equipment occurs abnormal, technique warning module is in time by failure
Information and corresponding solution inform user.
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| CN110069045A (en) * | 2019-04-11 | 2019-07-30 | 广州番禺职业技术学院 | The unattended method of sewage treatment plant and intelligent management platform based on BIM, VR and Internet of Things |
| CN110489402A (en) * | 2019-08-26 | 2019-11-22 | 武汉和时利自动化系统工程有限公司 | A kind of method of pair of traditional waste water treatment process production process data model construction |
| CN111694286A (en) * | 2020-05-12 | 2020-09-22 | 江苏江华水处理设备有限公司 | High-frequency adjustment type water treatment control system based on artificial intelligence |
| CN111708339A (en) * | 2020-06-22 | 2020-09-25 | 科盛环保科技股份有限公司 | Artificial intelligence control system and method for sewage plant and application of artificial intelligence control system |
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| CN113900420A (en) * | 2021-10-22 | 2022-01-07 | 中国恩菲工程技术有限公司 | Water ecological digital management and control system and method for metallurgical enterprise |
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| CN113900420A (en) * | 2021-10-22 | 2022-01-07 | 中国恩菲工程技术有限公司 | Water ecological digital management and control system and method for metallurgical enterprise |
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