Kiertelevyjäähdytin

Kiertelevyjäähdytin, also known as a spiral plate heat exchanger, is a type of heat exchanger designed for efficient heat transfer between two fluids. Its distinctive construction features two concentric spiral channels, one for each fluid. This design allows for a long flow path within a compact volume, maximizing the surface area available for heat exchange. The fluids flow in a counter-current or co-current pattern depending on the specific application and desired heat transfer efficiency.

The primary advantage of a kiertelevyjäähdytin is its ability to handle fluids with suspended solids, high viscosity, or a tendency to foul. The smooth, single-channel design minimizes dead spots and turbulence, which can otherwise lead to clogging and reduced performance. This makes it particularly suitable for applications in industries such as food processing, pulp and paper, and wastewater treatment.

The construction typically involves rolling two metal plates into spiral shapes and welding them together along the outer edge. This creates two distinct, sealed passages for the fluids. The materials used can vary depending on the corrosive nature of the fluids and the operating temperatures, with stainless steel and titanium being common choices. Maintenance is generally straightforward due to the open design, allowing for easy cleaning. Kiertelevyjäähdyttimet are known for their high thermal efficiency and robustness, making them a reliable choice for demanding industrial processes.