Water plant sludge discharge water treatment project

Product introduction

Water plant sludge discharge water treatment project

- Central control technology case -

1. Project overview                            

The main construction content of the sludge discharge water treatment project (the sludge discharge water treatment section in the plant) is the new reactor Flushing wastewater regulating tank, concentration tank, balance tank, dehydration room, etc., and equipment installation and other accessories Engineering and central control system construction。




2. Overall system design



1. System overview: The key technology of software design of water plant computer monitoring system is software group hierarchy technology。

2.     The computer monitoring system of water plant is constructed by the technology of software group hierarchy, and the application software is various and the relationship between them is complicated。This system through the integration technology, number According to interface technology, network technology, communication technology and other technologies, all kinds of software are grouped together to form a software group, forming an operating system layer, a database system layer, and a software branch Support layer and application software layer and other layers。Data interaction and sharing between layers and software clusters can be carried out through various interface technologies。

3.         AVEVAAs the configuration software of the monitoring system, the system platform has a good man-machine interface.AVEVAThe system platform software displays the required data and control commands through communication Software to implement。

4.     在AVEVAIn the system platform, a script program can be prepared as alarm software, and the control operation software can also beAVEVASystem platform to achieve。

5.     The data acquisition and processing software transmits the collected real-time data toSQLSenrerDatabase, and then print out the data required by the user through the report printing software。

6.     The integrated automation system of this project is made by the fieldPLCThe whole plant automatic control system consists of control station, communication network and upper system of central control room。It is a fiber-optic industrial Ethernet system Network, with high performance, high reliabilityPLCProcess control station and latest generation control system with server function。

7.         PLCSystem self-diagnosis software is an important aspect of system maintainability design. Self-diagnosis mainly uses software method to judge fault parts and causes.PLCHave a strong ability to self-diagnose

8. 力，当PLCIn the event of its own failure or peripheral device failure, it can be usedPLCOn has the diagnostic indicator work The light emitting diode can be turned on or off to find。

9.        PLCThe configuration of the control system is selected on the basis of sufficient technical and economic comparison Internal advanced level of hardware and software products。Considering the stage implementation of the project, the system has a certain Openness and scalability。PLCControl system to achieve full automatic production process, Equipment monitoring automation system from the central control room monitoring computer, database server, industrial Ethernet and Each sitePLCControl station composition。The central control room monitoring computer is connected to the industrial Ethernet via a communication adapter Configure real-time monitoring software to realize real-time monitoring and remote control of equipment status on the production site System, production process data storage analysis, report alarm printing and other functions。Real-time equipment monitoring system And historical data is also transmitted over the network to the data computer in order to manage the network terminal real-time browsing Production and operation。

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11. 3. Main function of system software
    




    Database computer as a water plant integrated automation system data storage and exchange center, and All sitesI/。Communication, trends, alarms, reports, database connections, etc.;Two database meter The computer is in redundancy mode and the system is in hot standby mode。In normal operation, two database computers work simultaneously. Detect each other and continuously complete the synchronization operation, and the application data is saved at the same time when any number of machines If the mining server fails, another data mining server computer will quickly take over the service and apply the cutting Change time less than5Seconds;When the faulty computer returns to normal, the system needs to be stored during the failure period Historical trend data and alarm records are recovered from the standby station。





4. System composition

    The modern water plant automatic control system needs to realize the integration of management and control, and realize office automation。The control system not only has a good interface with the lower control equipment, but also It has the interface integrated with the upper management system, and has scalability。Therefore, the modern waterworks water treatment system requires the use of fieldbus or industrial Ethernet at the bottom Network technology, the upper layer is selected excellent monitoring configuration software。Based on fully integrated automation(Totally Integrated Automation)The idea that the waterworks will control the system It is divided into management layer, control layer and field layer。





5. General functions of system software

・Rich picture display function



    The screen displayed in the computer operation station includes the main screen of the process flow and the process flow Process division screen, high and low voltage power supply monitoring screen, equipment operation screen, trend chart, Call menu screen, alarm screen, report screen, anti-theft alarm screen。操作 Personnel can fully understand the operation of the water plant by invoking these pictures, and And it is convenient to operate the equipment;

・Fault diagnosis and alarm processing function




1.     The operating screen of each device lists its starting condition status, such as power-on Situation, communication status, fault status, in place/ Remote status, hot relay status, etc。Record the relevant information when the alarm occurs, such as: fault label name, alarm information, fault alarm time, confirm the alarm time, and manage the alarm information;




•Report function



    The system output reports have the following five types, namely, water transfer process parameters daily report, Water distribution process parameter daily report, water transmission process parameter monthly report, water distribution process parameter month 报表；




・Remote monitoring function






    Adoption based on customer/ serverHMIConfiguration softwareAV EVASystem platform, real Remote monitoring of the water plant is now available。The operator can control the production process in the central control room To monitor, company managers, factory directors, engineers sit in the office or even at home The operation of water plants can be monitored。





System core technology

    The key technology of software design of water plant computer monitoring system is software group hierarchy technology。
    The computer monitoring system of water plant is constructed by the technology of software group hierarchy, and the application software is various and the relationship between them is complicated。This system through the integration technology, number According to interface technology, network technology, communication technology and other technologies, all kinds of software are grouped together to form a software group, forming an operating system layer, a database system layer, and a software branch Support layer and application software layer and other layers。Data interaction and sharing between layers and software clusters can be carried out through various interface technologies。
       AVEVAAs the configuration software of the monitoring system, the system platform has a good man-machine interface , AVEVAThe system platform software displays the required data and control commands through communication Software to implement。
    在AVEVAIn the system platform, a script program can be prepared as alarm software, and the control operation software can also beAVEVASystem platform to achieve。








System characteristics




•High system reliability




•     The system components are designed to meet industrial requirements and safety standards。The whole system is easy to maintain and expand, strong structure, corrosion resistance, can adapt to a wide range of temperature changes 围。The control system has a complete self-diagnosis function, which can automatically diagnose the fault of any part in the operation of the system。Timely and accurate in monitoring software To reflect the fault status, fault time, fault location and related signals, after the system failure,I/OThe state can be returned to the system pre-set according to the process requirements In state。




•The technical advancement of the system

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2. This system adopts advanced software and hardware, focusing onThe demand for "unattended" high automatic monitoring system improves the direct economic benefits of enterprises。




•Excellent scalability and compatibility

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•    This system uses the current more advanced mainstream products, with strong compatibility。In order to ensure that the control requirements are met in the future expansion and renovation, the design is fully tested Considering the expansion ability of the system, on the basis of meeting the existing functional requirements, there is a certain amount of retainedI/。点数。Database platform software.

• Technical features: The production and operation information management system needs to collect and store a large number of historical data from the automatic control system, and on this basis, analyze and display the data. Then the process decision model is established。Due to the large number of data points collected and the massive amount of data, in order to achieve excellent collection and storage performance, it is required to introduce professional industrial control System real-time historical data acquisition and storage software。Software application development function

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• •Database platform software
1.     Technical features: The production and operation information management system needs to collect and store a large number of historical data from the automatic control system, and on this basis, analyze and display the data. Then the process decision model is established。Due to the large number of data points collected and the massive amount of data, in order to achieve excellent collection and storage performance, it is required to introduce professional industrial control System real-time historical data acquisition and。