Method and device for detecting a leak in the area of at least one cooling device of a furnace, and a furnace

摘要

A representative partial stream (30a) is divided off from the stream (30) of exhaust gas during a preset period of time. The vaporous constituents contained in the partial stream are condensed. A stream (10) of condensate is determined. The stream of condensate is compared with a condensate-stream limit value. A leakage is indicated if the stream of condensate exceeds the condensate-stream limit value. Independent claims are included for the following: (1) device for detecting leakage in area of cooling device of furnace; and (2) furnace.