Spiral mixer nozzle and method for mixing two or more fluids and process for manufacturing isocyanates

摘要

An apparatus for mixing at least first and second fluid, comprising: (a) a first nozzle comprising a first flow duct defining a first flow chamber, and having a first nozzle tip having a first discharge opening; and (b) a second nozzle comprising a second flow duct defining a second flow chamber, and having a second nozzle tip having a second discharge opening; wherein said first flow duct and said second flow duct are spirally wrapped each over the other. The invention also provides a process for mixing fluids, especially adapted for the production of isocyanates, and that is notably carried out in the apparatus of the invention.

主权项

1. An apparatus for mixing at least a first and second fluid, comprising:
(a) a first nozzle comprising a first flow duct defining a first flow chamber, and having a first nozzle tip having a first discharge opening; and (b) a second nozzle comprising a second flow duct defining a second flow chamber, and having a second nozzle tip having a second discharge opening; wherein the first and second discharge openings are spirally wrapped each over the other about a central axis; wherein the first flow duct and the second flow duct are spirally wrapped each over the other about a central axis according to an Archimedean spiral thereby forming between 1 and 20 turns; and wherein during operation of said apparatus, the first fluid flowing in the first flow chamber and exiting through the first discharge opening forms a first fluid jet, and the second fluid flowing in the second flow chamber forms at the second discharge opening a second fluid jet, said first and second fluid jets impinging upon each other, thereby mixing the first and second fluids and obtaining a blend of said first and second fluids.