Importance

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Abstract

Provided are a condensate drain apparatus highly adaptable to an increase and decrease in drain discharge rate while preventing clogging of orifice hole, and a condensate discharge method. A condensate drain apparatus 1 includes orifice units each having an orifice and a decompression chamber provided downstream of the orifice arranged in series and in multiple stages. Each orifice unit 10U includes an orifice plate 12P with an orifice hole 11h having a diameter of 1 mm or more and formed in a thin plate shape, and a decompression plate 14P having a thickness the same as the orifice plate 12P and having the decompression chamber 14S formed therein. The orifice holes 11h adjacent in an axial direction are formed and arranged shifted in a radial direction from each other.

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First Claim