Method and device for the simultaneous dispersion and atomisation of at least two liquids
AssigneeBayer Aktiengesellschaft
InventorsClaus Mueller, Uwe Listner, Martin Schweitzer
Life of this patent
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Abstract
The invention relates to a method and a device for the simultaneous atomisation and dispersion of at least two liquids using propellant gas, whereby the resulting gas-liquid mixture is led through an atomising chamber comprising expansion zones arranged in series and flows out in the form of a spray cone from a nozzle orifice mounted downstream of the atomising chamber.
Claims13
Method for the simultaneous atomisation and dispersion of at least two liquids F.sub.l . . . n using propellant gas, whereby the resulting gas-liquid mixture is led through an atomising chamber (2) comprising expansion zones (19) arranged in series and flows out in the form of a spray cone (22) from a nozzle orifice (20) mounted downstream of the atomising chamber (2), characterised in that,
- a) prior to the entry into the atomising chamber (2), there are produced single streams T.sub.l . . . n of the different liquids dispersed by the propellant gas,
- b) these single streams are fed into the atomising chamber (2) rotationally symmetrically by distributor components and are thus directed onto an annular receiving duct (16) in the atomising chamber (2), the single streams impinge on the receiving duct (16) in a cyclical sequence, viewed in the circumferential direction and
- c) the resulting multiphase mixture of the liquids F.sub.l . . . n and the propellant gas are alternately compressed and expanded in the atomising chamber (2) in the direction of flow and then atomised through the nozzle orifice (20) in the form of a hollow cone (22).
Multiphase mixing nozzle for the simultaneous atomisation and dispersion of at least two liquids F.sub.l . . . n using propellant gas, comprising of a nozzle flange (1) having feeds (13, 14) for the liquids and (15) for propellant gas and a nozzle head (3) having a circular nozzle orifice (20) for atomising the gas/liquid mixture, as well as an atomising chamber (2) containing several expansion zones (19) arranged in series which is positioned between nozzle flange (1) and nozzle head (3), characterised in that
- a) the nozzle flange (1) possesses rotationally symmetrically arranged distributor components, which each consist of a liquid feed (10, 7) and propellant gas feed (11, 8) connected with one another and discharge into the atomising chamber (2),
- b) the propellant gas feed (15) is connected with a gas collection channel (6) and the liquid feeds (13, 14) are connected in groups with liquid collection channels (4, 5),
- c) and, viewed in the direction of flow, after the junction of the distributor components there is attached to the internal wall of the atomising chamber (2) an annular receiving duct (16)for the mixing and distribution of the single liquid streams T.sub.l . . . n dispersed by the propellant gas.
Dependencies are inferred from the claim text.