GB662659A - Method and centrifugal apparatus for nebulizing liquids - Google Patents

Abstract

662,659. Spray producers. DEFENSOR AKT. GES. March 11, 1949. No. 6790/49. Class 69 (iii). A liquid is formed into a fine mist (aerosols) by being fed to one or more rotary discs, the film so formed being projected outwards towards a disintegrator containing apertures and subsequently against baffle and guide surfaces. In Fig. 1 liquid mixture from a container 16 is drawn up a passage 7, spreads across rotor discs 6 and is flung against curved vanes 10, the mist being drawn from a chamber 1 by a fan 11 leading to one or more outlets. A motor 3 drives the shaft 5 carrying the rotor 6 and the fan 11 ; the fan may be adjusted along the shaft. Ambient air enters the chamber 1 through inlets 1b. The vanes 10 may be adjustable, have their upper surfaces shaped parabolically, made in rake-like fashion, or be formed of pins or wires of highly elastic and resilient material. Vibrations of very high frequency may be imparted to the vanes. In place of the vanes, a ring may be provided, containing slots of varying width. A skirt 17 around the inlet nozzle, prevents splashing. The cross-section of the inlet 7 may be varied and the fan 11 adjusted to alter the quantity of mist produced, particularly if it is used for inhalations. The mist may be heated or cooled. The fan may be made of rubber and other parts of the apparatus of plastic material. The aerosold may be charged with electricity particularly when used in disinfection, control of parasites and the like. Quartz lamps 20 may be used to submit the aerosols to ultra-violet irradiation or ionisation may be produced by a condenser on the motor 3. Infra red irradiation may be used to treat the aerosols. For the production of ozone the aerosols can be treated by quartz lamps or spark discharges. Agents, such as alkyl-sulfonic acid salts, alkyl-sulphuric acid salts or condensates of ethylene-oxide, may be used for reducing the surface tension of the aerosols. The active components of the liquid to be atomised may consist of fixed aldehydes, e.g. dioxymethal-carbamide or of the following: N Oxymethyl-carboxylic acid amides, N Oxymethyl sulphonic acid amides, or of aromatic compounds containing the hydroxyl group, or of compounds containing the -oogroup, or of substances liberating oxygen, or of chloramine and chloramide, or of glycols.