| 摘要 |
A pressurized weir for a fumeless pickling or cleaning system includes a pair of housing plates, one plate having an inlet opening for admitting water under pressure to the weir; a reservoir plate and metering plate; means for retaining said reservoir plate and said metering plate between said housing plates; a reservoir provided by said reservoir plate and said metering plate for receiving water under pressure from said inlet opening; and at least one truncated triangular opening in each of said reservoir plate and said metering plate, the bottom of said opening permitting water under pressure to be exhausted from said reservoir in the form of a water curtain. When used in combination with a pickling or cleaning system having a closed cell tank, the pressurized weir contains the fumes from the acid within the tank.
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