| 摘要 |
An electrochlorination apparatus is provided for generating a sodium hypochlorite solution. The apparatus comprises an electrolytic cell (2) and a brine tank (5) that is located above the electrolytic cell (2). The brine tank (5) is adapted to supply a predetermined volume of a saturated brine solution to the cell (2) via a gravity feed. A flow meter (22) is provided for connection to a water supply and adapted to supply water to the electrolytic cell 2 via valve means (25, 26). A controller (7) controls operation of the valve means (25, 26) whereby a predetermined volume of water as measured by the flow meter (22) is also supplied to the cell (2) in combination with the brine solution so that the cell (2) operates to produce a sodium hypochlorite solution of a predetermined concentration. Preferably, water is also supplied to the brine tank (5) via the flow meter (22) and the valve means (25, 26) and the controller (7) controls operation of the apparatus using a batch process wherein in each batch the controller (7) operates the valve means (25, 26) to supply predetermined volumes of water as measured by the flow meter (22) first to the brine tank (5) and then to the cell (2) or vice versa. In this case the brine tank (5) is adapted to output the same said predetermined volume of the saturated brine solution to the cell (2) as the predetermined volume of water supplied to it via the flow meter (22) and valve means (25). |
