Apparatus for introducing a first fluid into a second fluid, preferably introduction of steam into flowing celluose pulp
AssigneeKvaerner Pulping AB
InventorRolf Ekholm
Life of this patent
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Abstract
The apparatus is adapted for the admixing of a first fluid, preferably steam into the flow of a second fluid, preferably cellulose pulp. With the purpose of obtaining a high and good admixing capacity and avoiding the generation of noise, the admixing of the second fluid is effected in the end of a pipe, which pipe has an increase in area of at least 50%, directly after the admixing, viewed in the direction of flow of the second fluid.
Claims13
Apparatus for introducing a first fluid into a second fluid which is flowing in a pipe (2A,2B), which apparatus consists of a pipe-shaped body (10) with a through-flow channel (9) for the said second fluid of essentially constant cross-sectional area, one or more chambers (14) which extend round at least the majority of the circumference of the through-flow channel along at least a part of the its longitudinal extent, a connection (19) for supplying the first fluid to the said chamber(s) from a pressure source, in which a series of through-holes (28) is arranged in the said pipe-shaped body (10) in the region of the said one or more chambers (14), through which holes the first fluid can be directed into the second fluid which is flowing through the said through-flow channel (9) under the influence of the difference in pressure between the said chamber(s) and the said through-flow channel, characterized in that downstream of the through-flow channel and in direct contact with it there is a downstream section (2B) with a cross-sectional area which is significantly larger than that of the through-flow channel, so that an increase in area of at least 50% is obtained close to the connection for supply of the first medium.
Dependencies are inferred from the claim text.