Guizhou Bijie water water treatment system
According to the actual situation of the customer and the compatibility of the whole system, the control system chooses the S7-300, SMART200 system of Siemens, the engineer and operator workstation chooses the industrial computer system of DELL, the communication mode is EtherNet in Siemens industrial communication network, the communication rate is fast, and the scalability is good. Thus, the information of this system is guaranteed to be real-time, fast, stable and safe.
The project includes: blower room, instrument room, dosing room, disinfection room, sand settling filter, high-density sedimentation tank, central control room. Each master control station is equipped with an optical switch, which will constitute the entire project as a ring network communication. Among them, our company is responsible for providing the instrument room control system, the dosing room control system, the high-density sedimentation tank control system and the central control room for the operation control, status and data information collection of all control stations.
1, instrument room control system, dosing room control system
As two DP sub-stations of SIEMENS CPU S7-300 in the main station, the instrument room control system and dosing room control system are connected by IM153-1 respectively. The instrument room system collects effluent COD, PH, SS and other data, and the dosing room controls the dosing system metering pump and other operations.
2, high-density sedimentation tank control system
The high-density sedimentation tank control system is composed of a set of SIEMENS SMART200 system, which collects NH3-N, DO and other data and controls the operation of flocculation agitator, agitator, sludge screw pump and other equipment.
Project Introduction Overview:
System boot, run the WINCC monitoring software, the first is the "project introduction" as shown in the following figure. In the middle of the screen is the end user, Oems, design units and other relevant information. At the bottom there is a row of buttons, click these buttons to enter the corresponding operation screen.
According to many years of practical experience, each control equipment point has the upper machine manual, automatic control mode, in which the automatic control can be set by the running time, interval time, cycle time and other parameters for cycle timing automatic operation, for users to choose according to the actual situation.
List of measuring points:
Survey point list overview:
Upper range limit: indicates the upper range limit of detection data
Lower range limit: indicates the lower range limit of detection data
Alarm interlock setting value:
L: low alarm value, when the current value is lower than this value, the low alarm is generated, and the buzzer generates an alarm.
H: high-limit alarm value. When the current value is higher than this value, the high-limit alarm is generated, and the buzzer generates an alarm.
L L: low threshold alarm value. When the current value is lower than this value, low threshold alarm or interlock parking will be generated, and the buzzer will generate alarm and sound.
H H: high-high-limit alarm value. When the current value is higher than this value, high-high-limit alarm or interlock parking will be generated, and the buzzer will generate alarm.
LL and HH at the end of the table: indicate the alarm value when an interlock stop occurs, and the buzzer generates an alarm sound.
The data report displays the collected data in the form of a table in real time and stores it in the database for users to query and print later. The query methods include: daily query, month query, year query, interval daily query, interval month query, interval year query; Printing includes: connecting the printer to manually print; Periodic automatic printing; Export Excel, PDF file, by U disk copy to print elsewhere. For users to choose according to the actual situation.