Höyrysäiliö

Höyrysäiliö, also known as a steam accumulator, is a device used to store thermal energy in the form of hot water and steam. It operates on the principle that water at high pressure can hold a significant amount of energy. When steam is injected into the accumulator, it heats the water and simultaneously creates a steam cushion above it.

The primary function of a höyrysäiliö is to buffer fluctuations in steam demand or supply. In industrial processes where steam is required intermittently or in varying quantities, a höyrysäiliö can provide a stable and readily available source of steam. Conversely, if a steam generation system produces more steam than is immediately needed, the excess can be stored in the accumulator for later use.

The charging process involves pumping water into the accumulator and injecting live steam, which condenses and heats the water. When steam is needed, the pressure inside the accumulator is reduced by opening a valve. This causes some of the hot water to flash into steam, thereby releasing the stored energy. The design of a höyrysäiliö typically involves a cylindrical vessel with inlet and outlet pipes for steam and water. Safety features, such as pressure relief valves, are essential components.

Höyrysäiliöitä are commonly found in industries such as pulp and paper, chemical processing, and food and beverage manufacturing, where consistent steam availability is critical for operations. They contribute to energy efficiency by allowing for more stable operation of boilers and reducing the need for on-demand steam generation.