| 摘要 |
<p>A chemical feeder (10) for dissolving chemical tablets (40) includes a housing (11) and a plurality of tapered pedestals (60) positioned in the housing for supporting the chemical tablet as the tablet is dissolved by liquid flowing through the feeder. The housing (11) also includes a cup (22) configured to receive a cartridge (50) for holding the tablet; the cup includes inlet and outlet ports (31, 24) for the liquid. The cartridge (50) includes a plate (51) at its lower end; the pedestals (60) are formed on its interior surface. Each pedestal (60) may have a pencil-point shape. When the chemical tablet (40) is installed in the cartridge (50) and the cartridge is installed in the cup (22), the tapered pedestals (60) support the chemical tablet and thereby expose an underside of the tablet to the liquid. The tablet (40) is immersed in the liquid according to the height of the pedestal (60); the dissolution rate of the tablet thus corresponds to the height of the pedestals. (Drawing Figure 3)</p> |
