| 摘要 |
An apparatus for preventing clogging in a water jet line of a furnace is provided to detect a water jet line having clogged using a manometer and supply steam for purging to the clogged water jet line only, thereby performing purging to water jet lines efficiently. An apparatus for preventing clogging in a water jet line of a furnace comprises a steam ring main(23) and a steam branch pipe(24). Steam for purging is supplied to the steam ring main. The steam branch pipe connects the steam ring main and a water jet branch pipe(17) so that steam for purging is supplied to the water jet branch pipe. The water jet line comprises ring mains(15,16) through which fresh water for temperature control flows in, the water jet branch pipe which is connected to the ring mains to spray the fresh water inside the furnace and equipped with a manometer(26) and a check valve(27), and a nozzle(6) which is connected to the water jet branch pipe and has a plurality of jetting holes on the upper part.
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