Nozzle device and nozzle for atomisation and/or filtration and methods for using the same
a technology of atomisation and nozzles, applied in the direction of spray nozzles, filtration separation, mixing methods, etc., can solve the problems reducing the reproducibility and accuracy of micro-machining methods, and reducing the efficiency of nozzles, etc., to achieve the effect of reducing flow resistan
Inactive Publication Date: 2008-09-11
AQUAMARIJN HLDG
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Benefits of technology
The solution achieves narrow droplet size distributions, increased throughput, reduced fouling sensitivity, and lower operational pressures, enabling efficient atomization and filtration with improved performance in medical, dairy, and fuel injection applications.
Problems solved by technology
Alternatively spark erosion and laser drilling technigues may be used, but in general these tend to be less reproducible and less precise in comparison with micro-machining methods.
The disadvantage of many conventional atomizing devices is that they break bulk liquid or gas into relatively large droplets through use of stirring or turbulence.
Such small nozzle structures however are very sensitive for fouling and unwanted leakage due to blocked nozzle orifices.
Moreover if the blockage is very severe spraying (or jetting) will cease and liquid will flow through this orifice over the surface of the nozzle structure hence influencing or inhibiting spraying behaviour of the other orifices.
Such pressures will exert high forces on the nozzle plate.
Method used
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[0054]A first embodiment of a nozzle device 1 is shown in FIG. 1. The nozzle device 1 comprises a nozzle for atomization 2, with a nozzle plate 10 with at least one nozzle orifice 11 and a nozzle plate support body 12 with a nozzle cavity 13, further comprising filtration means 3 with a filtration plate 15 with at least one filtration orifice 16 and a filtration plate support body 17 with at least one filtration cavity 18. This nozzle device 1 is rather insensitive for microbiological fouling and unwanted leakage due to blocked nozzle orifices 11 because of the placement of a pre-filter for the nozzle for atomization 2. Basically the nozzle for atomization 1 and filtration means 2 are made with the same micro machining techniques giving many additional advantages. The two parts 2 and 3 may have similar size and flatness and can therefore easily be directly bonded or glued 22 together without the need of separate or elaborated connection parts, that may introduce particle contaminati...
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Abstract
Nozzle device and nozzle for atomization and / or filtration as well as methods for using the same. The nozzle and nozzle device for atomization, in particular a micro-machined reinforced nozzle plate, may produce small liquid droplets in air (spray) or into a liquid (emulsion) with a narrow droplet size distribution and make small air bubbles into a liquid (foam). A nozzle part for filtration as well as elements and methods to facilitate atomization and filtration are also disclosed.
Description
[0001]The present invention relates to a nozzle device having a nozzle for atomization of a fluid, the nozzle comprising a nozzle plate support body having a cavity extending from a first main surface to a second main surface thereof, and comprising a nozzle plate having at least one nozzle orifice in fluid communication with said cavity at said first main surface side of said nozzle plate support body. The invention further relates to a nozzles as used in such a nozzle device.[0002]These devices are used for filtration purposes and or for atomization of a fluid to produce small liquid droplets in air (spray) or into a liquid (emulsion) with a relatively narrow droplet size distribution and to make small air bubbles into a liquid (foam) and to methods of using the same. The device and especially the nozzle plate may be produced by micro-machining (Micro System Technology) which means that the subject nozzle part means are produced using lithography steps related to semiconductor fab...
Claims
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IPC IPC(8): B01D35/18B05B17/00B01D35/14B01D39/10B01D17/06B01D17/09A61M15/00B01D61/18B01D63/08B01D63/16B01D65/02B01D67/00B01D69/02B01D71/02B01D71/64B01F23/70B01L3/00B01L3/02B05B1/02B05B15/00B05B15/40
CPCA61M15/00B05B15/008B01D63/08B01D63/16B01D65/02B01D67/003B01D67/0034B01D67/0088B01D67/0093B01D69/02B01D71/02B01D71/022B01D71/64B01D2321/04B01D2321/185B01D2321/2066B01D2321/2075B01D2323/36B01D2323/38B01F3/04446B01F3/0807B01F3/20B01F3/2057B01F13/0059B01F13/0062B01F13/0066B01L3/0241B01L3/5025B05B1/02B01D61/18B05B15/40A01J11/06C12H1/16B05B1/14B01F23/235B01F23/41B01F23/70B01F23/708B01F33/3011B01F33/3012B01F33/30B01D71/0215B01D71/02231B05B17/0646B01F23/23105B01F2101/07B01F2101/15A23C9/1524B01D35/02B01D35/28
InventorVAN RIJN, CORNELIS JOHANNES MARIA
OwnerAQUAMARIJN HLDG