| 摘要 |
<p>An un-pressurised chlorination device 20 comprises a container 2 having an open top closed by a removable lid 3. The container 2 defines an inner chamber 4 for a plurality of chlorination tablets 5. The container 2 has a lower inlet spigot 6 for receiving a water supply inlet pipe 7. The container 2 also has a lower water outlet 9 through which chlorinated water is delivered. There is a water flow path 10 between the inlet 6 and the outlet 9. The inlet 6 is substantially horizontal. The outlet 9 expands outwardly and downwardly. The tablet chamber 4 is not pressurised and the outlet 9 discharges to atmosphere pressure. The device of the invention is useful for dissolving, dispersing and dispensing soluble material in tablet form 5 into a liquid. There is a substantially horizontal fluid path 10 with just enough fall to the outlet to allow the device to drain down out of the outlet 9 when there is no inlet flow. A movable obstruction such as a screw 15 may be adjusted to change a level 18 of water in the chamber 4 and thereby change the amount of chlorine dissolved in water flowing through the device. The horizontal fluid path 10 has openings 16 that allow a small amount of water to mix into the main tablet chamber 4 which surrounds the fluid path 10 and to completely drain the chamber 4 when the flow is turned off.</p> |
