Contaminants or impurities, chemical reactions or physical changes and contamination inside the gas bag.
1. Pollutants or impurities: Before entering the airbag, the water has been contaminated with some pollutants or impurities. These contaminants come from impurities present in pipes, equipment or water sources.
2. Chemical reaction or physical change: Once the water from the furnace enters the gas bag, the water will undergo a chemical reaction or physical change with the materials inside the gas bag. These reactions or changes lead to changes in the color and quality of the water. For example, some metal ions can react with acids or bases in oven water to form dark-colored compounds.
3. Pollution inside the gas bag: Some pollutants or impurities inside the gas bag will contaminate the boiler water. For example, if there arecorrosion or wear inside the gas drum, these corrosion products or wear particles will enter the boiler water, causing the water to turn black.
The main job of chemical water is to remove impurities, metal ions, suspended matter, etc. in the water after treatment of raw water (river water, tap water, etc.) using equipment such as negative beds. and positive beds. The brine is sent to boilers or desuperheaters and other equipment for use;
Another task of boiling water is water quality monitoring and regular analysis of superheated steam, saturated steam and water in the drum. , etc. of the boiler are not qualified. When adding chemicals to the boiler;
Sometimes the chemical water station assumes part of the laboratory functions, testing the main auxiliary materialss of the power plant, such as testing lime for desulfurization and testing raw coal quality (calorific value, ash content, humidity, volatile matter, sulfur content, etc.);
If the power plant has a wastewater treatment plant, it also has to undertake wastewater treatment tasks, such as understanding the sedimentation of wastewater, aeration of CASS regulating tanks and decanters, with filter for remove mud, etc.