| 摘要 |
Three parallel coupled heat exchanger lines (I, II, III) are used of which one, after cleaning, is kept in reverse for when either of the others needs to be cleaned. If (II) is the reverse line, theniithen it is washed with the condensate from I and III. Black lye enters via pipe and valves and leaves to the combustion sprays via pipe. High pressure stream for heating is supplied via valve. |
