The hottest WebAccess sewage treatment application

2022-10-03
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WebAccess sewage treatment application sewage treatment plant monitoring system

[preface]

with the development of China's industry, people pay more and more attention to the treatment of sewage. It is required to control and monitor the processing process in real time while completing the process flow quickly and effectively, so as to realize the automatic management of the whole process

with the continuous development of computer technology, internet/intranet and equipment manufacturing technology to promote equipment transformation and upgrading, b/s architecture has become a very popular application mode of monitoring system. It is based on ActiveX, ASP and other technologies to apply real-time monitoring system in the internet/intranet environment. Internet users can access the real-time data of production site from the web server through the web browser, It can also realize remote monitoring, remote fault diagnosis, remote command and scheduling, and remote equipment management based on internet/intranet

in the Qinhuangdao sewage project introduced below, the above factors are fully considered, and the upper configuration software WebAccess of baiyuankong Information Technology Co., Ltd. is used to realize the automatic management of the whole treatment process, and realize the three in one of TV monitoring network, automatic control network and management network

[project introduction]

Qinhuangdao sewage treatment plant is located in the suburb of Qinhuangdao city. It is a Qinhuangdao Municipal Engineering Project, invested by a company in Tianjin. The project was completed in mid August 2004. The project is located in the suburb of the city, with remote geographical location and poor site conditions. In this case, the powerful Luo Jinan experimental machine factory of WebAccess teaches you how to affirm the experimental range communication performance and data backup function of the spring experimental machine

on the network architecture, WebAccess realizes the application of real-time monitoring system in the internet/intranet environment. Leaders and experts can access the real-time data of the production site from the web server through the web browser, and can realize remote monitoring, remote fault diagnosis, remote command and scheduling, and remote equipment management based on internet/intranet

in terms of communication, there are many kinds of instruments and other equipment at the bottom, and the controller adopts Siemens s, S. Simply setting in WebAccess can realize the connection with Siemens S7 Series products, which greatly improves the reliability of the whole system, and the communication of the whole architecture runs smoothly, which shows the good network communication performance of WebAccess

in the production of graphics, we strictly follow the process flow chart provided by the Design Institute, mainly vector graphics, and some pictures adopt bitmap, which realizes the animation effect that the main equipment such as grille and spiral slag conveyor are consistent with the actual process flow. In the design of the report, it realizes the automatic printing of the report, and the manual printing of the monthly report and the annual report. The whole water treatment process is managed automatically

in addition, WebAccess also shows good data sharing performance. For example, the common simulation screen in sewage plants can transmit the data in webac and even the cess database of polyurethane system to the simulation screen through API, DDE and other methods

web quality assurance access monitors the process flow and various parameters, such as water level, flow, pressure, concentration, etc. in real time. It is combined with the upper information management system to realize the real-time communication between the real-time data of the production site and the upper management of the company, so as to ensure the efficient operation of the whole sewage treatment process. At the same time, the control interface can facilitate the switching between manual operation and automatic operation

[system architecture diagram]

the sewage treatment plant is equipped with five cameras with PTZ, which are connected to the monitoring computer through video cables, and a built-in 8-channel video compression card can realize the video information collection of 8 channels, meeting the requirements of the current 5 detection points

a large capacity hard disk is set on the video server of the sewage treatment plant, which can be used to save data for a specified length of time and view the equipment it belongs to. You can choose to view the images of all cameras at a detection point as required, or you can choose the mode of viewing multiple images at the same time. Each camera can be driven to move to view the image information in different places. It can be clearly seen from the system diagram that the video server is connected to the factory server through the switch, so that the factory director, production supervisor and chief engineer can view the images taken by each camera in real time through WebAccess software, and can control the rotation and zoom of each camera. Because the three networks of TV monitoring network, automatic control network and management network share an Ethernet, the three in one is realized. Therefore, the factory director, production supervisor and chief engineer can watch the camera video and view the process data collected by PLC

install PCI card on the main server of the sewage treatment plant, apply for static IP address, and connect to the Internet. Other computers connected to the Internet (such as the headquarters of Tianjin zhongaihua company) can access the real-time image information and video playback on the main server through the browser, and can drive each camera to view the image information collected by each camera

[typical process legend]

1, home page

2, biological pool

3, coarse grid

in this part, the display data of all instruments represent the measurement data of field instruments, and communicate with WebAccess through Siemens 400. Using the drawing tool of WebAccess, the animation of the process of scraping mud with a coarse grid, and then the mud leaks into the funnel is realized. In addition, the animation of the water pump can be easily realized through WebAccess's own drawing tools. The data 6.15 and 0.00 in the above figure measure the liquid level difference of sewage before and after passing through the coarse grid. The process is as follows: collect the liquid level heights on both sides respectively, and then use the intermediate variable points given free by WebAccess to do subtraction operation to obtain the concentration difference as shown in the figure in real time. In addition, there are red lights and green lights next to the equipment, which respectively indicate that the equipment is in operation/standstill state. The small hand below represents manual operation

4. Fine grid

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