container monitoring

The On-line Water Quality Monitoring System is a service target for online analytical instrumentation and laboratory research to provide representative, real-time and reliable water sample retention and water quality monitoring information. Mission, using industrial automation (PLC) control technology, computer technology and proprietary software for the company's own copyright, to form a complete system from water intake, pre-processing, analysis to data processing, transmission and storage, thus achieving automatic monitoring of water quality online Fully automatic operation. The automatic monitoring system generally includes a water distribution unit, a preprocessing unit, a data acquisition and control unit, an online monitoring and analysis instrument unit, a data processing and transmission system, and a remote data management receiving center.




     The water intake system sends the water sample at the water intake point to the grit chamber and the multi-parameter pool through the sampling water pipe by taking the water pump set on the water intake platform. The grit chamber separates and separates the sediment and large particle suspensions that affect the normal operation of the analytical instrument, and then is pumped by the pretreatment unit injection pump and stored in the sample cup through the primary and secondary filtration devices for sampling and measurement by each analytical instrument. The entire automatic operation process is completed by PLC control, and the actuator adopts a micro pneumatic actuator with accurate and reliable action.



     The installation and integration of the analytical instrument of this project is adopted in the same way: the overall containerized water quality automatic monitoring station mode.




     Each unit of the overall container-type analysis unit has an independent mounting bracket, and a systematically designed and strictly constructed pipeline laying, cable arrangement, and reasonable layout of various functional components constitute a neat, beautiful and coordinated monitoring system. The 4-20 mA output signal of each analysis unit is directly input to the analog input module in the control system, and the data acquisition and storage of the multi-channel analysis result is realized through the program and the data acquisition and storage of the upper layer software and the database.



     The overall containerized water quality automatic monitoring station room, through systematic design and strict construction of pipeline laying, cable arrangement, and the rational layout of various functional components constitute a neat, beautiful and coordinated monitoring system. The 4-20 mA output signal of each analysis unit is directly input to the analog input module in the control system, and the data acquisition and storage of the multi-channel analysis result is realized through the program and the data acquisition and storage of the upper layer software and the database. The system setting is open, the user can set various parameters in operation according to the needs, and the system has good scalability; the system should have the function of automatically starting the emergency monitoring mode.



     Each analysis unit can also communicate bi-directionally with the substation system via RS232 or RS485 or MODBUS. It can be used for both data acquisition and feedback control. It can grasp the status of the analysis instrument in real time or remotely.



     The programmable controller in the data acquisition and transmission unit is the control center of the entire water station. It must not only perform system parameters (temperature, pressure, water level, gas pressure, pure water level, pump status, substation supply voltage, etc.). Real-time monitoring, system parameters (air backflush frequency, sampling frequency, read data frequency) can also be set and modified according to system operating status.



     In addition to the above components, the air unit, the pure water unit, the operating environment support subunit, the algae removal unit, the cleaning unit, the automatic sample retention unit, and the waste liquid recovery unit are also indispensable important components in the water station system.



     In the system design, full consideration is given to the requirements for expanding the instrument in the future. First, there is sufficient expansion margin in the shared equipment (such as water pump, pure water machine, air compressor, algae removal equipment, pipeline, valve configuration, etc.), followed by In the power supply configuration, acquisition control system, etc., there must be enough input channels, and the control system can also easily increase and decrease the number of site points, measured parameters and controlled parameters in each site. Finally, the cabinet design and interior layout should also be fully considered.




     In addition, in order to facilitate the maintenance of the system, each instrument is provided with a bypass system on the main road, which is adjusted by a manual valve. When an instrument or a certain pipeline needs maintenance, the bypass can be turned on to close the main road, which does not affect the normal operation of other instruments, and achieves the purpose of maintenance and repair.




    It can realize the remote test of water quality analyzer, including standard liquid verification, blind sample assessment, etc., which can display the assessment results; thus realize remote automatic management of automatic monitoring data review, inspection, retesting, alarm, etc. It is an automatic water quality monitoring equipment for inspection. An effective tool for operating status is an effective means of screening invalid interference data and is a standard for determining the effectiveness of automatic monitoring data.


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