CHLORINATION APPARATUS AND METHOD

摘要

Apparatus and method for dissolving chemical tablets (5) for creating a variable rate of chemical dissolution in a stream of constant flow rate of untreated liquid, especially water. The apparatus includes a housing (12) in which a container (20) is placed. The container (20) includes a sieve plate or perforated grid (28) which separates the container (20) into an upper chamber (30) in which chemical tablets (5) are stored and a lower mixing chamber (32). A collection reservoir (26) is defined in an annular region outside the container wall (22) and inside of the housing (12). Several arrangements are illustrated by which a vortex of liquid is generated of controllable variable intensity in the lower or mixing chamber (32) thereby creating uneven liquid pressure beneath the perforated grid (28) as a function of radial distance. As a result, fluid passes aggressively through outer radial perforations or holes (30) in the grid (28).