Drone Inspection for large Power Plant Boilers

In power plant boilers, various types of damages or impairments can occur, which can have different causes and consequences. One of the most common issues is corrosion, which is caused by chemical reactions with the surrounding medium. The exposure of oxygen, water, or chemical compounds to the boiler’s metal can result in material loss, rust formation, and structural weakening. Corrosion can significantly impair the boiler’s lifespan and ultimately lead to leaks or failures.

Erosion is another problem that can occur in power plant boilers. This happens when abrasive particles such as ash, sand, or other solids collide with the surface of the boiler at high velocity. The repeated collision of these particles can cause abrasion, material loss, and damage to the inner walls. Erosion can compromise the structural integrity of the boiler and reduce heat transfer efficiency.

Wear is a consequence of long-term operation of power plant boilers. The combination of thermal stress, pressure changes, and chemical reactions can lead to material fatigue. This often manifests as cracking, detachment of coatings, or deformation of components. Wear can impair the boiler’s performance, reduce efficiency, and ultimately result in malfunctions or failures.

Deposits in the combustion chamber of a power plant boiler can also cause significant problems and impair efficiency. During the combustion process, residues and impurities are released in the combustion chamber, which can accumulate over time on the inner surfaces of the chamber. These deposits often consist of soot, ash, slag, or other combustion residues.

The formation of deposits in the combustion chamber can lead to several issues. Firstly, the deposits can impair combustion efficiency by disrupting optimal air and fuel supply, leading to incomplete combustion and increased fuel consumption.

Secondly, the deposits can hinder heat transfer in the combustion chamber. The layer of deposits acts as an insulating barrier between the hot combustion gases and the heat exchange surfaces, resulting in reduced heat transfer and efficiency loss.

Furthermore, deposits in the combustion chamber can cause operational disturbances by blocking flow paths or impairing the function of sensors and control units. This can lead to irregular combustion, increased emissions, pressure losses, and reduced power plant performance.

All these damages or impairments have serious consequences for the safe and efficient operation of the power plant. They can lead to leaks that endanger personnel safety and cause environmental pollution. Additionally, they can result in increased maintenance needs, longer downtimes, and higher operating costs. Therefore, regular inspection and monitoring of power plant boilers are essential to detect potential issues early and take appropriate measures for maintenance and repairs.