höyrykattiloista

Höyrykattilat, commonly known as steam boilers, are enclosed vessels that heat water into steam under pressure. This steam is then used to power machinery, generate electricity, or provide heat for industrial processes and buildings. The fundamental principle involves transferring heat energy from a fuel source to water, causing it to vaporize and expand.

The components of a typical steam boiler include a firebox or furnace where fuel is burned, a heat exchanger or boiler tubes through which water circulates, and a shell or drum to contain the water and steam. Various types of fuels can be used, including coal, oil, natural gas, and biomass. Water is fed into the boiler, heated by the combustion gases passing over the heat transfer surfaces, and converted into steam. Safety mechanisms such as pressure relief valves are crucial to prevent over-pressurization.

Steam boilers are categorized based on their design and application. Fire-tube boilers, where hot gases pass through tubes surrounded by water, are generally used for lower pressure applications. Water-tube boilers, where water circulates through tubes exposed to hot gases, are preferred for higher pressure and larger-scale operations, such as in power plants. Modern boilers often incorporate advanced control systems for efficiency and safety. Regular maintenance and inspection are vital to ensure the reliable and safe operation of steam boilers.