Enhet och förfarande för avluftning av dränagevatten

The invention relates to a unit (3) for deaeration of drainage water from a paper machine, said unit comprising an inlet (8) for receiving the drainage water in a first flow direction, an outlet (39) for removing the drainage water to a subsequent deaeration channel, and a first chamber (5) that is...

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Bibliographic Details
Main Authors LEIF VIDEGREN, JAN MALM, RUNE SKOGSBERG, CHRISTIAN AAKOE
Format Patent
LanguageSwedish
Published 29.06.2011
Subjects
CHEMISTRY
METALLURGY
METHODS OF PRODUCING PAPER THEREON
PAPER-MAKING
PAPER-MAKING MACHINES
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
PRODUCTION OF CELLULOSE
SEPARATION
TEXTILES
TRANSPORTING
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Summary:The invention relates to a unit (3) for deaeration of drainage water from a paper machine, said unit comprising an inlet (8) for receiving the drainage water in a first flow direction, an outlet (39) for removing the drainage water to a subsequent deaeration channel, and a first chamber (5) that is arranged downstream of the inlet, said first chamber comprising a first chamber part (18), which comprises a guide wall portion (37) for redirecting the drainage water in a second flow direction that differs from the first flow direction, said guide wall portion being formed by a plurality of curved guide walls (10, 23) which interact with the drainage water so that the drainage water is decelerated and air is forced out of the drainage water, and two end walls (25, 26) which are arranged on respective sides of the guide walls, wherein each end wall of at least one of the flow channels exhibits an opening (27) that communicates with the flow channel for removing air that has been released from the drainage water in the flow channel. The invention also relates to a method for such a deaeration.
Bibliography:Application Number: SE20090001610