English Explanatory Dictionary

downcomer

English dictionary entry

Meanings

noun
  1. A pipe to conduct something downwards.
  2. A large external pipe in a water-tube boiler, carrying unheated water from the steam drum down to the water drum as part of the circulation path.
  3. A pipe for leading the hot gases from the top of a blast furnace downward to the regenerators, boilers, etc.

Word forms

downcomer downcomers

Etymology

From down + comer.

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