The metal corrosion of the boiler feedwater system in thermal power plants directly affects the safety and economic operation of the boiler and thermal system. Although it does not cause immediate system failure, it can lead to the premature scrapping of thermal system equipment and shorten its service life. The data collection platform for power water sample analysis instruments is designed to meet the needs of water treatment in boilers. Online instruments are used to detect water quality at various points, and pH and other water quality data are provided for supervision by operators. It also provides operational data for automatic dosing devices.

1. Hardware composition of data collection platform

(1) Operation Station: Equipped with an operating system, configuration software, and user software in the upper computer, it completes the monitoring and control functions of the entire system

(2) Printer: Used for report printing and other functions

(3) Console: used to place computers, monitors, printers, etc

(4) Sampling control cabinet: used for the layout and power supply of chemical instruments

2. Composition of data collection platform software
（1）This data collection platform has functions such as "display of the entire process system flow", "data collection and processing", "real-time trend display", "historical trend query", "parameter limit alarm", "report printing", etc.

（2）In the process system flow screen, the chemical operators of the power plant can intuitively and in real-time observe various water qualities;

（3）In the data collection and processing interface, engineers can perform centralized display, measurement range control, upper and lower limit alarm settings, and other data processing operations on the collected data;

（4）In the real-time trend and historical trend display screens, power plant chemical operators can observe the trend of data changes, providing a basis for dosing and other operations;

（5）In the parameter limit alarm screen, the alarm situation of parameters exceeding the pre-set limit is displayed in a centralized manner to remind the chemical personnel of the power plant to pay attention;

（6）The report printing function allows the collected data to be printed as a file in the form of a table.

The following figure shows an example of the upper computer screen of the data collection platform