Distribution Header

The Distribution Header is a critical part of an evaporator system, typically located at the inlet section. Its primary function is to receive the incoming fluid (liquid or vapor) and ensure its uniform distribution across the multiple parallel tubes, plates, or channels within the evaporator's heat exchange section. This uniform flow is essential for maximizing heat transfer efficiency, preventing dry spots, scaling, or uneven concentration, and ensuring consistent product quality and process stability.

The fluid enters the header through a single inlet. The internal geometry of the header (e.g., a large-diameter pipe, a manifold with baffles, or a specially designed chamber) is engineered to reduce flow velocity and turbulence, allowing the fluid to stabilize. The pressure is equalized within the header before the fluid exits through multiple outlet ports, each connected to an individual tube or channel. This design ensures each parallel flow path receives an approximately equal share of the total feed, promoting balanced thermal and mass transfer performance across the entire evaporator surface.