Hydrodynamic Separator With Inner Partition And Conical Base

The separator is divided into multiple functional zones using vertical partitions: an outer separation region for initial particle removal, an inner separation region for enhanced separation, and a solids collection region. This segmentation allows each zone to perform a specific separation function, improving overall removal efficiency while maintaining a relatively simple cylindrical geometry that is easy to manufacture.

Different regions of the separator are given different functional properties: the outer region handles gross solids removal, the inner region provides fine particle separation, and the conical base collects settled materials. This local differentiation of flow characteristics and separation mechanisms maximizes removal efficiency for different particle sizes without requiring complex overall geometry.

The separator employs vertical partitions to create distinct functional zones (outer separation region, inner separation region, solids collection region) within a simple cylindrical vessel. This segmentation provides optimized flow paths and separation mechanisms without requiring complex overall geometry, achieving high removal efficiency while maintaining manufacturing simplicity.

The invention introduces a vertical dimension to the separation process by creating multiple stacked separation regions at different heights within the cylindrical vessel. The outer and inner separation regions operate at different vertical levels with controlled flow communication between them, adding a dimensional aspect to particle separation that enhances efficiency without complicating the horizontal geometry.

The separator utilizes the kinetic energy and flow patterns of the incoming liquid stream itself to perform separation functions. The downward helical flow in the outer region and upward helical flow in the inner region are generated automatically by the inlet structure and geometry, without requiring external power or moving parts. Settled solids are self-swept to the conical base by the flow patterns, achieving reliable automatic operation with optimized retention efficiency.

The device employs hydraulic principles to create controlled flow patterns: the inlet structure generates a downward helical flow that transitions to an upward helical flow in the inner region. These hydraulic flow regimes, driven by gravity and inertial forces, automatically separate particles based on their settling characteristics without mechanical intervention, maintaining high reliability while achieving optimized separation performance.

The separator divides the flow into multiple parallel paths through the outer and inner separation regions, effectively increasing the processing capacity. During high flow rates, the segmented structure prevents short-circuiting by providing multiple flow channels, maintaining retention efficiency while handling increased productivity demands during storm conditions.

The vertical stacking of separation regions creates additional flow path length in the vertical dimension, preventing short-circuiting during high flow rates. The controlled communication between outer and inner regions at different heights ensures that water must traverse multiple vertical levels, maintaining retention efficiency even when processing high volumes during storms.