CN111180015A - Management control method based on three-dimensional integrated model sewage treatment plant virtual reality - Google Patents

Management control method based on three-dimensional integrated model sewage treatment plant virtual reality Download PDF

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CN111180015A
CN111180015A CN201911401389.XA CN201911401389A CN111180015A CN 111180015 A CN111180015 A CN 111180015A CN 201911401389 A CN201911401389 A CN 201911401389A CN 111180015 A CN111180015 A CN 111180015A
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sewage treatment
treatment plant
dimensional integrated
biochemical
virtual reality
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贾仁勇
徐晓茵
赵浩然
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Shanghai Kungong Environment Technology Co ltd
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Shanghai Kungong Environment Technology Co ltd
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    • GPHYSICS
    • G16INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16CCOMPUTATIONAL CHEMISTRY; CHEMOINFORMATICS; COMPUTATIONAL MATERIALS SCIENCE
    • G16C10/00Computational theoretical chemistry, i.e. ICT specially adapted for theoretical aspects of quantum chemistry, molecular mechanics, molecular dynamics or the like
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/008Control or steering systems not provided for elsewhere in subclass C02F
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/30Aerobic and anaerobic processes
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/011Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
    • G06Q50/10Services
    • G06Q50/26Government or public services
    • GPHYSICS
    • G16INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16CCOMPUTATIONAL CHEMISTRY; CHEMOINFORMATICS; COMPUTATIONAL MATERIALS SCIENCE
    • G16C20/00Chemoinformatics, i.e. ICT specially adapted for the handling of physicochemical or structural data of chemical particles, elements, compounds or mixtures
    • G16C20/10Analysis or design of chemical reactions, syntheses or processes
    • GPHYSICS
    • G16INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16CCOMPUTATIONAL CHEMISTRY; CHEMOINFORMATICS; COMPUTATIONAL MATERIALS SCIENCE
    • G16C20/00Chemoinformatics, i.e. ICT specially adapted for the handling of physicochemical or structural data of chemical particles, elements, compounds or mixtures
    • G16C20/70Machine learning, data mining or chemometrics
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/105Phosphorus compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/14NH3-N
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/15N03-N
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/22O2

Abstract

The invention discloses a management control method based on virtual reality of a three-dimensional integrated model sewage treatment plant, which comprises the following steps: step (1), the three-dimensional dynamic integrated simulation calculation of the biochemical treatment process, the solid-liquid-gas three-phase mass transfer process and the hydraulic process flow of the sewage treatment plant is realized through the integrated fusion of the biochemical process, the solid-liquid-gas three-phase action process and the hydraulic process of the sewage treatment plant; embedding three-dimensional integrated simulation calculation, cloud calculation and FCS embedding of the sewage treatment plant to realize construction of an intelligent body of the sewage treatment plant; and (3) embedding the three-dimensional integrated simulation calculation of the sewage treatment plant and BIM (building modeling) to realize virtual reality management control of the sewage treatment plant. The invention establishes a three-dimensional calculation model based on the integration of a biochemical process, a solid-liquid-gas three-phase action process and a hydraulic process, and is fused with cloud calculation, FCS and BIM to realize the construction of an intelligent body of a sewage treatment plant and the management and control of virtual reality.

Description

Management control method based on three-dimensional integrated model sewage treatment plant virtual reality
Technical Field
The invention relates to the field of environmental protection and sewage treatment, in particular to a virtual reality management control method for a sewage treatment plant, which effectively solves the management and control problems of a complex system of the sewage treatment plant.
Background
In the sewage biochemical treatment system, activated sludge consists of microbial flora, and a plurality of microbial individuals interact with each other; on a macroscopic level, the sewage treatment plant has strong capacity of resisting water quality and water fluctuation, and needs a large amount of redundancy of the capacity of resisting working condition destruction of an activated sludge microbial system; on the single microorganism level, the substrate purification behavior of the microorganism is accumulative, and the result of substrate purification has action and environmental factor feedback for single microorganism; because the number of the microorganisms is large, the purification time is long, the trial-and-error cost of the microorganism monomer is low or the project is acceptable; the cooperation between the microorganisms can form a closed loop of action and provide the possibility for a closed loop of the process. Therefore, the activated sludge system of the sewage treatment plant is a complex system with self-adaptive capability from the aspect of microorganism. The invention provides a proper management and control method for the self-adaptive variable-mode sewage treatment plant, creates a reasonable process condition environment, and enables the activated sludge system of the sewage treatment plant to have strong water quality and water volume impact resistance load capacity.
The traditional sewage treatment plant management control technology is based on the following technical layers:
first, the device is controlled manually: manual intervention is carried out, and the state control of the equipment is realized, so that the water inlet flow, the internal and external reflux flow, oxygen supply, stirring and the like are controlled. The method is characterized in that simple manual control of equipment is based on preset parameter values and experience, and the control aims to enable process data to be in a set fixed range, (1) the running condition of a sewage treatment plant based on data is not fully evaluated; (2) the operation condition of the sewage treatment plant is lack of predictability; (3) the response to the fluctuation of water quality and water quantity is passive; (4) the experience dependence on field workers is strong.
Second, the structure of the control system: from the initial CCS (computer centralized control system), to the second generation DCS (distributed control system), to the now popular FCS (field bus control system). This represents an advance in the structure of the control system, and does not involve in-depth understanding, identification and evaluation of biochemical systems; the sewage treatment process unit is located at the bottom station (point) in the control system structure.
Thirdly, ash box feedback control: if the DO of the aeration tank is monitored, the air quantity of the blower is fed back and controlled; the air quantity of the air blower is controlled by monitoring the inflow rate and the feed-back. The limitation of the feedback control is that (1) the monitoring sensor only reflects the data of the monitoring point, and the problem of replacing the overall data with local data exists; (2) the feedback control is the control of environmental working condition, and the decision triggering condition of the feedback control has no deep understanding and recognition to a life processing system; (3) there is no perception of the reaction time of the biochemical process, resulting in a lag in the control effect.
Fourth, "biochemical model" supports: if an international water cooperation ASM2D model is adopted to provide support for process parameters and equipment control of a sewage treatment plant, the problems of experience, blindness and delay of operation control of the sewage treatment plant can be partially improved, but (1) the models are not three-dimensional models, only can provide output results based on input, and cannot fully consider the hydraulics problem, the three-dimensional space condition of a reactor and the gas-liquid-solid three-phase problem; (2) the fixed DO value is adopted for control, so that the energy consumption of the aeration fan is easily increased; there is a control delay in time; (3) excess residual oxygen (DO) tends to impair the processing capacity of the denitrification zone.
In a word, the activated sludge system of the sewage treatment plant is a complex system, and the requirement on control robustness is high. The traditional sewage treatment plant management and control technology is an industrial control technology, cannot deeply understand and evaluate a biochemical treatment system of a sewage treatment plant, cannot perform perfect management and control, needs experience intervention of external people at any time, and has obvious limitations on response capability, anticipation capability and strain capability. In order to better develop the capability of the adaptive variable-mode sewage treatment system, the management control method needs to be improved.
Disclosure of Invention
The invention mainly solves the technical problem of providing a management control method of the virtual reality of the sewage treatment plant, which can improve the response capability, the anticipation capability and the strain capability of a biochemical treatment system of the sewage treatment plant aiming at the problem of intelligent management and control of the sewage treatment plant; the method solves the problems of management and control of a complex system faced by a self-adaptive variable-mode sewage treatment method.
In order to solve the technical problems, the invention adopts the technical scheme that: the method provides a management control method of virtual reality of a sewage treatment plant based on a three-dimensional integrated model, and provides that (1) three-dimensional dynamic integrated simulation calculation of a biochemical treatment process, a solid-liquid-gas three-phase mass transfer process and a hydraulic process of the sewage treatment plant is realized through integrated fusion of a biochemical process, a solid-liquid-gas three-phase action process and a hydraulic process of the sewage treatment plant; (2) and 3, the three-dimensional integrated simulation calculation, cloud calculation and FCS mosaic of the sewage treatment plant are embedded, so that the intelligent body of the sewage treatment plant is constructed. (3) The three-dimensional integrated simulation calculation of the sewage treatment plant is embedded with BIM (building modeling), so that the virtual reality management control of the sewage treatment plant is realized.
Further, a three-dimensional integrated simulation calculation model of the sewage treatment plant is constructed, and the biochemical pool is divided into an aerobic area (aerobic section) and an anoxic area (anaerobic section and anoxic section): finite element analysis is carried out on the aerobic zone, and a biochemical reaction kinetic equation, a solid-liquid-gas three-phase mass transfer and motion equation and a hydraulic simultaneous equation are established; establishing a simultaneous equation of the prevalence time and the internal and external reflux ratio along the prevalence direction of the mixed liquid; determining and ensuring turbulence caused by oxygenation in an aeration mode to establish a flow velocity field by taking the monitored BOD degradation rate, nitrification rate and denitrification rate as key parameters, DO/ORP and ammonia nitrogen as sensitive parameters and other biochemical parameters as conventional parameters; and fitting a sludge sedimentation concentration curve with the measured MLSS concentration and establishing a solid field in a simultaneous manner with the flow velocity field. Finite element analysis is carried out on the oxygen-free area, and a generalized biochemical reaction kinetic equation, a solid-liquid-gas three-phase mass transfer and motion equation and a hydraulic simultaneous equation are established; establishing a simultaneous equation of the prevalence time and the internal and external reflux ratio along the prevalence direction of the mixed liquid; determining and ensuring the induced turbulent flow to establish a flow velocity field by using monitored BOD degradation rate, nitrification rate and denitrification rate as key parameters, DO/ORP and nitrate as sensitive parameters and other biochemical parameters as conventional parameters in a stirring or plug flow mode; and fitting a sludge sedimentation concentration curve with the measured MLSS concentration and establishing a solid field in a simultaneous manner with the flow velocity field. And for the secondary sedimentation tank, fitting a sludge sedimentation concentration curve with the measured MLSS concentration and establishing a solid field equation in parallel with the flow velocity field. For the bypass sludge relay tank, the working conditions are switched among hydrolysis acidification, denitrification and precipitation separation, the anaerobic zone model of the biochemical tank is used for simulating the hydrolysis acidification and denitrification working conditions of the bypass sludge relay tank, and the secondary sedimentation tank model is used for simulating the precipitation separation working conditions of the bypass sludge relay tank. And establishing a simultaneous equation by taking the size of the structure as an integral boundary and taking the quality and quantity of inlet water and the quality and quantity of outlet water as upstream and downstream boundary conditions. Solving simultaneous equations by a neural network optimization algorithm, and establishing a three-dimensional integrated simulation calculation model.
Furthermore, the three-dimensional integrated simulation calculation, cloud calculation and FCS of the sewage treatment plant are embedded, so that the intelligent body of the sewage treatment plant is constructed. The combination of a field bus control system (FCS) and cloud computing has good openness, interoperability and interchangeability, can realize all-digital communication, has intellectualization and functional autonomy, and has high dispersity and strong applicability. The method realizes the mosaic of three-dimensional integrated simulation calculation, cloud calculation and FCS mosaic of the sewage treatment plant, and is the key for constructing an intelligent body of the sewage treatment plant. The three-dimensional integrated simulation calculation of the sewage treatment plant is based on a cloud data platform, the cloud data comprises infrastructure basic attribute data, process data and input and output data of the sewage treatment plant, the output data of the three-dimensional integrated simulation calculation of the sewage treatment plant deduces a plan according to a control strategy scheme and specific conditions, the control strategy scheme is used for real-time production management control of the sewage treatment plant, and the condition deduction plan is used for switching an operation mode and an operation scheme of the sewage treatment plant.
Furthermore, the three-dimensional integrated simulation calculation of the sewage treatment plant is embedded with BIM (building modeling), so that the virtual reality management control of the sewage treatment plant is realized. The building modeling (BIM) of the sewage treatment plant comprises facility and equipment modeling, attribute data of the building modeling (BIM) is stored in a cloud platform as basic data, input data of a three-dimensional integrated simulation calculation model of the sewage treatment plant is based on the BIM attribute data of the cloud platform and running dynamic data of the sewage treatment plant, output data of the three-dimensional integrated simulation calculation model of the sewage treatment plant is managed by an intermediate database and is embedded with a VR (virtual reality) system, and a human-computer interaction and manual intervention interface is provided. The VR system is connected with multimedia, sensors, a network and a man-machine interface. Can provide plan deduction, personnel training, VR patrol and inspection and virtual drilling of a sewage treatment operation mode and an operation scheme; the sewage treatment plant virtual reality management control simulation system can be in seamless joint with enterprise ERP and MIS systems, so that the whole life cycle management of facility equipment is realized.
The invention has the beneficial effects that:
the invention establishes a three-dimensional calculation model based on the integration of a biochemical process, a solid-liquid-gas three-phase action process and a hydraulic process, and is fused with cloud calculation, FCS and BIM to realize the construction of an intelligent body of a sewage treatment plant and the management and control of virtual reality.
Compared with the prior art, the following beneficial effects are realized:
1. establishing an integrated three-dimensional model of a biochemical process, a solid-liquid-gas three-phase action process and a hydraulic process of a sewage treatment plant;
2. the three-dimensional integrated computing model is embedded with cloud computing and FCS technology, so that the construction of an intelligent body of a sewage treatment plant and intelligent management control are realized;
3. the three-dimensional integrated computing model is embedded with the BIM technology, so that the virtual reality management and control of the sewage treatment plant are realized;
4. diagnosing and evaluating the operation mode and scheme of the sewage treatment plant;
5. carrying out working condition scene plan deduction on the operation mode and the scheme of the sewage treatment plant;
6. carrying out full life cycle management on equipment, structures and consumables of a sewage treatment plant;
7. and the aim-oriented and process-managed virtual reality man-machine interaction of the sewage treatment plant is realized.
Drawings
FIG. 1 is a generalized schematic diagram of an adaptive variable-mode sewage treatment method based on a management control method of a virtual reality of a sewage treatment plant of a three-dimensional integrated model according to the present invention; reference numeral 1 in fig. 1, a biochemical cell; 2. a secondary sedimentation tank; 3. bypassing the sludge relay tank.
FIG. 2 is a schematic diagram of a management control logic architecture of a management control method of a virtual reality of a sewage treatment plant based on a three-dimensional integrated model; reference numerals in figure 2: 1. a cloud computing platform; 2. a control center; 3. A group water inlet; 4. a biochemical pool; 5. a secondary sedimentation tank; 6. a sludge relay tank; 7. a phosphorus removal tank; 8. and (4) a water outlet.
FIG. 3 is a virtual reality architecture diagram of a management control method of the virtual reality of a sewage treatment plant based on a three-dimensional integrated model; reference numerals in figure 3: 1. the system comprises a cloud computing platform 2, a coordination server 3, a VR server 4, a 3D virtual reality human-computer interaction interface 5, a task interaction terminal 6 and wearable equipment.
FIG. 4 is a schematic diagram of finite element analysis.
Detailed Description
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Example 1
Referring to fig. 1, the adaptive variable-mode sewage treatment method of the management control method of the virtual reality of the sewage treatment plant based on the three-dimensional integrated model is modeled in a generalized manner, so that the accuracy of mode switching of the adaptive variable-mode sewage treatment plant is ensured. The variable mode and self-adaptive requirements on management control of the self-adaptive variable mode sewage treatment method are higher than those of the traditional activated sludge sewage treatment process, and the method mainly comprises the following steps: 1) dry/rainy mode switching; 2) the process treatment capacity meets the prejudgment and prestudy of flow and water quality fluctuation; 3) and (4) adjusting process parameters of the process unit. The core process unit of the self-adaptive variable-mode sewage treatment method is summarized as shown in figure 1, and an integrated three-dimensional model of a biochemical process, a solid-liquid-gas three-phase action process and a hydraulic process of a sewage treatment plant is established according to the generalization shown in figure 1. The specific embodiments and implementation modes adopted are as follows: switching between the dry weather mode and the rainy weather mode can be determined according to weather forecast rainfall conditions, existing operation experience and operation conditions of a collecting pipe network system pump station; and according to the calculation result of the integrated three-dimensional model, whether the flow water quality fluctuation requirement is met in the adjustment range of the process parameters of the running mode is pre-researched, and whether the mode is switched is determined. If the water load impact is met within the proper adjustment range of the process parameters, the process parameters are adjusted to solve the problem; and if the water quantity and the water quality fluctuation exceed the adjustment range of the process parameters, starting mode switching. Furthermore, an integrated three-dimensional model can be used in advance, the operation scheme of the sewage treatment plant can be pre-researched based on the data of the cloud computing platform, and the pre-researched scheme is stored in the cloud computing platform for rapid decision-making. The running scheme of the sewage treatment plant is pre-researched in sufficient time from weather forecast rainfall, occurrence of rainfall events and formation of peak flow of the sewage treatment plant.
Example 2
Referring to fig. 2, a management control logic architecture of a management control method of a virtual reality of a sewage treatment plant based on a three-dimensional integrated model. The adaptive variable-mode sewage treatment method has higher management and control requirements than the traditional activated sludge method, and fig. 2 is a logic structure of a three-dimensional integrated computing model, a cloud computing platform and an FCS (field bus system) embedded logic. Aiming at the problems, the adopted scheme is as follows: a core management control system with safety, stability, real-time response and pre-research and pre-judgment is constructed by embedding a three-dimensional integrated computing model with a cloud computing platform and an FCS (field bus system). The specific implementation mode is as follows: the three-dimensional integrated computing model is arranged on a cloud computing platform, and the cloud computing platform is provided with an attribute database, an operation database and an intermediate database; the cloud computing platform is connected with the FCS system; the FCS system is provided with a control center, and a field bus is connected with subordinate substations, such as: the biochemical pond substation 3, the secondary sedimentation pond substation 4, the bypass sludge relay pond substation 5, the phosphorus removal pond substation 6 and the like are simultaneously provided with water quality and quantity monitoring of the combined inlet water and the combined outlet water, and data are uploaded to a cloud operation database.
Further, in the biochemical pool sub-station 3, the aerobic section monitors DO/ORP, ammonia nitrogen and nitrate nitrogen; monitoring the flow rate and DO/ORP in the anoxic zone; the adaptive region monitors MLSS, internal reflux ratio. And uploading the data to a cloud computing platform operation database. The control center receives the cloud computing platform instruction and controls the air blower, the air valve, the internal reflux pump, the impeller or the stirrer;
further, the secondary sedimentation tank 4 monitors effluent turbidity, residual sludge discharge and external reflux ratio. And the control center receives the instruction of the cloud computing platform and controls the excess sludge pump and the external reflux pump.
Further, bypassing the sludge relay tank 5, monitoring ORP, liquid level and flow rate; controlling the outflow pump, the stirrer/impeller;
and further, a phosphorus removal tank 6 is used for monitoring total phosphorus and controlling a chemical agent feeding pump.
Example 3
Referring to fig. 3, a virtual reality framework of a management control method of a virtual reality of a sewage treatment plant based on a three-dimensional integrated model. The architecture scheme of the virtual reality management and control system of the sewage treatment plant with the adaptive variable-mode sewage treatment method is shown in figure 3, which comprises the following steps: the system comprises a cloud computing platform 1, a coordination server 2, a VR server 3, a 3D virtual reality human-computer interaction interface 4, a task interaction terminal 5 and a wearable device 6. The specific implementation mode is as follows: the cloud computing platform comprises an SQL database and a three-dimensional model integrating biochemical process, solid-liquid-gas three-phase action process and hydraulic process, wherein the SQL database comprises an attribute database, an operation database, a middle database, a 3D model (BIM) and a map. And a coordination server, a VR server, a 3D virtual reality human-computer interaction terminal, wearing equipment and a task interaction terminal are arranged in the control center. FCS submits operation data, attribute data and BIM to a cloud computing platform and establishes a computing result of a three-dimensional model integrating biochemical process, solid-liquid-gas three-phase action process and hydraulic process according to completion data of a sewage treatment plant, and the computing result is placed in a middle database; the VR server is responsible for processing information of the 3D virtual reality human-computer interaction terminal, the wearable device and the task interaction terminal and cooperatively acts with the coordination server, and the coordination server is responsible for coordinating with the FCS control system. The three-dimensional integrated simulation calculation, cloud calculation and FCS embedding of the sewage treatment plant realize the construction of an intelligent body of the sewage treatment plant, and a virtual reality management and control system of the self-adaptive variable-mode sewage treatment plant is a calculation pivot and a manual intervention window of the intelligent body of the sewage treatment plant.
Furthermore, the equipment, structures and consumables of the sewage treatment plant are subjected to full-life-cycle management, and the full-life-cycle management is an independent subsystem arranged on a cloud computing platform and provides full-life-cycle management services of single equipment facilities and full-plant equipment facilities. Such as: for a certain device, the timing clock starts timing after the device is installed and debugged, and a full life cycle record file is established according to daily inspection, weekly maintenance, monthly maintenance and annual maintenance events of the device, so that a maintenance plan, a preventive maintenance plan and an updating plan are provided, and the device has better alarm reminding performance. The independent sub-coordination can be in seamless connection with enterprise ERP and MIS systems, and content items can be added according to needs.
Furthermore, an operation mode and an operation scheme are established, and a three-dimensional model integrating a biochemical process, a solid-liquid-gas three-phase action process and a hydraulic process can provide an operation scheme according to given conditions such as water quantity, water quality, air temperature and the like; an optimization scheme may also be established based on analysis of the run-time data; the scheme generated according to the given conditions and the scheme formed by the existing operation data can be stored in the intermediate database as a seed scheme, the seed scheme is divided into a dry season mode scheme and a rainy season mode scheme, and the schemes of the seed scheme group are checked through actual application and continuously refined and updated.
Further, diagnosis and evaluation of the scheme of the running mode scheme group of the sewage treatment plant and deduction of a scheme working condition scene plan. The diagnosis and evaluation of the scheme are completed by 1) scheme parameter coordination and comparison 2) scheme material balance calculation 3) energy consumption, drug consumption and water consumption 4) responsiveness and stability of the scheme 5) artificial fuzzy evaluation and the like. The scheme working condition scene plan deduction is completed by a three-dimensional model integrating a biochemical process, a solid-liquid-gas three-phase action process and a hydraulic process, the deduction result can be displayed in a virtual reality mode, a data report and scheme satisfaction grade scoring can be provided, and manual fuzzy evaluation can be achieved.
Further, virtual reality man-machine interaction facing targets and process management of the sewage treatment plant is achieved. The management facing to the target and the management facing to the process have a unified surface, the elements of safety, quality and environment are all key elements in the target and the process, the virtual reality man-machine interaction facing to the target and the process management of the sewage treatment plant is realized through a 3D virtual reality man-machine interaction interface 4, a task interaction terminal 5, a wearing device 6 and other external devices in the figure 3, such as: printers, plotters, multimedia devices, etc.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims (3)

1. A management control method based on virtual reality of a three-dimensional integrated model sewage treatment plant is characterized by comprising the following steps:
step (1), the three-dimensional dynamic integrated simulation calculation of the biochemical treatment process, the solid-liquid-gas three-phase mass transfer process and the hydraulic process flow of the sewage treatment plant is realized through the integrated fusion of the biochemical process, the solid-liquid-gas three-phase action process and the hydraulic process of the sewage treatment plant;
embedding three-dimensional integrated simulation calculation, cloud calculation and FCS embedding of the sewage treatment plant to realize construction of an intelligent body of the sewage treatment plant;
and (3) embedding the three-dimensional integrated simulation calculation of the sewage treatment plant and BIM (building modeling) to realize virtual reality management control of the sewage treatment plant.
2. The management control method based on the virtual reality of the three-dimensional integrated model sewage treatment plant according to claim 1, characterized in that: a three-dimensional integrated simulation calculation model of a sewage treatment plant is constructed, and a biochemical pool is divided into an aerobic zone (aerobic section) and an anoxic zone (anaerobic section and anoxic section): finite element analysis is carried out on the aerobic zone, and a biochemical reaction kinetic equation, a solid-liquid-gas three-phase mass transfer and motion equation and a hydraulic simultaneous equation are established; establishing a simultaneous equation of the prevalence time and the internal and external reflux ratio along the prevalence direction of the mixed liquid; determining and ensuring turbulence caused by oxygenation in an aeration mode to establish a flow velocity field by taking the monitored BOD degradation rate, nitrification rate and denitrification rate as key parameters, DO/ORP and ammonia nitrogen as sensitive parameters and other biochemical parameters as conventional parameters; and fitting a sludge sedimentation concentration curve with the measured MLSS concentration and establishing a solid field in a simultaneous manner with the flow velocity field. Finite element analysis is carried out on the oxygen-free area, and a generalized biochemical reaction kinetic equation, a solid-liquid-gas three-phase mass transfer and motion equation and a hydraulic simultaneous equation are established; establishing a simultaneous equation of the prevalence time and the internal and external reflux ratio along the prevalence direction of the mixed liquid; determining and ensuring the induced turbulent flow to establish a flow velocity field by using monitored BOD degradation rate, nitrification rate and denitrification rate as key parameters, DO/ORP and nitrate as sensitive parameters and other biochemical parameters as conventional parameters in a stirring or plug flow mode; fitting a sludge sedimentation concentration curve with the measured MLSS concentration and establishing a solid field in a simultaneous manner with the flow velocity field; for a secondary sedimentation tank, fitting a sludge sedimentation concentration curve with the measured MLSS concentration and establishing a solid field equation in a simultaneous manner with a flow velocity field; for the bypass sludge relay tank, the working conditions are switched among hydrolysis acidification, denitrification and precipitation separation, the anaerobic zone model of the biochemical tank is used for simulating the hydrolysis acidification and denitrification working conditions of the bypass sludge relay tank, and the secondary sedimentation tank model is used for simulating the precipitation separation working conditions of the bypass sludge relay tank; establishing a simultaneous equation by taking the size of the structure as an integral boundary and taking the quality and quantity of inlet water and the quality and quantity of outlet water as upstream and downstream boundary conditions; solving simultaneous equations by a neural network optimization algorithm, and establishing a three-dimensional integrated simulation calculation model.
3. The management control method based on the virtual reality of the three-dimensional integrated model sewage treatment plant according to claim 1, characterized in that: the three-dimensional integrated simulation calculation, cloud calculation and FCS of the sewage treatment plant are embedded, so that the intelligent body of the sewage treatment plant is constructed; the combination of a field bus control system (FCS) and cloud computing has good openness, interoperability and interchangeability, can realize all-digital communication, has intellectualization and functional autonomy, and has high dispersity and strong applicability. The method realizes the mosaic of three-dimensional integrated simulation calculation, cloud calculation and FCS mosaic of the sewage treatment plant, and is the key for constructing an intelligent body of the sewage treatment plant; the three-dimensional integrated simulation calculation of the sewage treatment plant is based on a cloud data platform, the cloud data comprises infrastructure basic attribute data, process data and input and output data of the sewage treatment plant, the output data of the three-dimensional integrated simulation calculation of the sewage treatment plant deduces a plan according to a control strategy scheme and specific conditions, the control strategy scheme is used for real-time production management control of the sewage treatment plant, and the condition deduction plan is used for switching an operation mode and an operation scheme of the sewage treatment plant.
CN201911401389.XA 2019-12-31 2019-12-31 Management control method based on three-dimensional integrated model sewage treatment plant virtual reality Pending CN111180015A (en)

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