How to clean the boiler
How to clean the boiler
The boiler adopts a suspended full membrane wall lightweight tube laying furnace wall structure, which can expand freely in all directions, is lightweight, and has good insulation performance. The boiler layout is convenient and suitable for various capacities and fuels. Modular supply is adopted for auxiliary heating surfaces such as energy-saving devices and air preheaters to reduce on-site installation workload. Standardized design of membrane walls and serpentine tubes to reduce supply cycles.
1、 Cleaning method
1. Machine wash
Mechanical cleaning is a manual cleaning process using high-pressure water guns. Generally speaking, the boiler will remove scale, blockages, or surface deposits inside, regardless of the scale deposits such as rust. Iron oxide scale, resin, chemical residues, paint, epoxy resin, etc. can be completely removed by cleaning with a high-pressure water jet cleaning machine.
2. Chemical cleaning
Chemical cleaning is acid cleaning. Only certified manufacturers and environmental protection units with certification certificates can carry out cleaning. By adding chemical cleaning agents, rust, scale, and oil stains in the boiler system are cleaned and dispersed to restore a clean metal surface.
2、 Cleaning program
1. Understand the situation
Understand the structure, materials, and heat transfer methods of boiler cleaning. There are dozens of boilers on the market, each with different heat exchange methods, structures, and materials, and the cleaning methods required for each structure and material are also different. Cleaning personnel analyze and test different areas, water quality, and scales, and prepare different chemical cleaning agents for different materials and scales, proposing scientific and reasonable cleaning plans.
2. Scale removal and cleaning
According to the proportion of boiler cleaning and descaling, add a set of descaling cleaning agents to the circulating water in the cleaning tank, determine the cleaning cycle time and the amount of agent added. Scale.
3. Clean with clean water
After connecting the cleaning equipment to the boiler, circulate clean water for 10 minutes, check the system status for leaks, and remove any floating rust.
4. Demoulding and anti-corrosion cleaning
Add an appropriate amount of surface remover and slow-release agent to the circulating water in the cleaning tank, and cycle for 20 minutes to separate the scale from the cleaned area. Remove the scale during cleaning to prevent the cleaning agent from corroding the parts to be cleaned. The surface has undergone anti-corrosion treatment.
5. Passivation coating treatment
Add passivation coating agent to passivate the boiler cleaning system to prevent corrosion and new rust formation of pipelines and components.