| 摘要 |
The invention relates to the treatment of acidic aqueous solution, particularly the condensate that is generated as a by-product of a central heating boiler of the condensation type i.e. a so-called 'condensing boiler'. A neutralising unit suitable for attachment to the condensate outlet of a condensing boiler comprises a housing (1) which has an inlet (7) leading into a first chamber (2), a second chamber (3) leading to an outlet (9), the second chamber (3) containing a solid neutralising agent (15) characterised in that the neutralising unit is adapted so that, in normal use, condensate from the boiler flows through the inlet (7) into the first chamber (2), then upwards through the solid neutralising agent (15) in the second chamber (3) and then out through the outlet (9).
In a preferred embodiment the unit is provided with a single passageway (11) which in normal use allows air to pass from the outlet to the inlet without passing through the neutralising agent and also in the event of blockage of the unit acts as an escape passage (11) enabling the condensate to pass through the unit without having passed through the neutralising agent. |
