Gas generator and cavitator for gas generation
View Patent ↗A gas generator for gasification of liquids, e.g. vapour from water, including a main rotor body being rotatably mounted to a static support framework to rotate around a rotor body center axle. The main rotor body having main rotor body channels for guiding a flow of a liquid from a rotor body channel inlet towards a rotor body channel outlet located further away from the rotor body center axle than the rotor body channel inlet so liquid in the rotor body channel is forced towards the rotor body channel outlet by centrifugal forces. The main rotor body has cavitator channels connected to the rotor body channel outlet. The cavitator channels have cavitation element to induce a differentiated pressure within the liquid in the cavitator caused by centrifugal forces induced by the rotation of the main rotor body inducing cavitation of the liquid flowing through the cavitator channels.
1 . A gas generator for gasification of liquids, said gas generator comprising a main rotor body being rotatably mounted to a static support framework such that the main rotor body is arranged to rotate around a main rotor body centre axle, said main rotor body comprising one or several main rotor body channels, provided with a rotor body channel inlet and a rotor body channel outlet, for guiding a flow of a liquid from said rotor body channel inlet being located at a distance R1 in a radial direction from the main rotor body centre axle towards said rotor body channel outlet being located at a distance R2 in the radial direction from the main rotor body centre axle, wherein R2>R1 such that a liquid in the rotor body channel is forced from the rotor body channel inlet towards the rotor body channel outlet by centrifugal forces as the main rotor body rotates around the main rotor body centre axle, said main rotor body further comprising one or several cavitators, each cavitator comprising an outer cavitator stator and an inner cavitator rotor, the inner cavitator rotor arranged to rotate relative to the outer cavitator stator, each cavitator further comprising one or several cavitator channels provided with a cavitator channel inlet being located closer to R2 than R1 and a cavitator channel outlet, in each cavitator a rotational movement of the inner cavitator rotor relative to the outer cavitator stator being induced by designing the cavitator to rotate by the liquid flowing through the cavitator from the cavitator channel inlet to the cavitator channel outlet, said cavitator channel inlet being connected to the rotor body channel outlet for guiding said liquid flow to the cavitator for cavitation of the liquid, said one or several cavitator channels provided with cavitation inducing means to induce a differentiated pressure within the liquid in the cavitator from the inertia of the liquid and the centrifugal forces induced by the rotation of the main rotor body thereby causing cavitation in the liquid flowing through the one or several cavitator channels and the cavitation inducing means.
2 . The gas generator according to claim 1 wherein said main rotor body comprises at least two cavitators being located equidistant from each other and equidistant from the main rotor body centre axle.
3 . The gas generator according to claim 1 wherein the main rotor body comprises a main rotor body casing defining a rotatable container having an interior main rotor body space to which the liquid as vaporized is guided from the one or several cavitators.
4 . The gas generator according to claim 3 wherein the interior main rotor body space defined by the main rotor body casing is bell shaped or shaped as a lower half of an hour glass or as a truncated cone.
5 . The gas generator according to claim 3 wherein the main rotor body casing forming part of the main rotor body is designed to have a main rotor body outlet at its upper portion having a reduced cross sectional area perpendicular to the main rotor body centre axle as compared to a lower cross sectional area or a mean cross sectional area of the rotatable container formed by the main rotor body casing.
6 . The gas generator according to claim 3 wherein said main rotor body is comprised in an inner casing forming part of the static support framework, said inner casing being used as a pressure chamber.
7 . The gas generator according to claim 3 wherein the rotor body channel outlet is designed to cooperate and fit into an outer container space gas inlet comprised in an inner casing upper wall, said outer container space gas inlet being designed to have a larger cross sectional area than the rotor body channel outlet such that there is a gap created between the outer container space gas inlet and the rotor body channel outlet such that the flow of gas from the interior main rotor body space will create and maintain a low pressure zone in an inner container space due to the venturi effect of the flowing gas.
8 . The gas generator according to claim 3 wherein said interior main rotor body space comprises a flow restrictor encircling the main rotor body centre axle and is located between gas feed openings of the main rotor body and the rotor body channel outlet, said flow restrictor causing solid matter contained in the gas to be separated from the gas flow when being hit by particles comprised in the gas flow.
9 . The gas generator according to claim 3 wherein said interior main rotor body space comprises main rotor drainage outlets in a lower plate for discarding solid matter separated from a gas flow together with a portion of the fluid.
10 . The gas generator according to claim 1 wherein said gas generator comprises a fixed outer casing in which a fixed inner casing defining a low-pressure inner container space is comprised, a flow of gas from the inner container space being guided via an outer container space gas inlet to an outer container space.
11 . The gas generator according to claim 10 wherein said outer container space further comprising liquid supply conduits in which liquid to be fed to the main rotor body is preheated in the main rotor body flowing through the outer container space.
12 . The gas generator according to claim 10 wherein gas flowing through the outer container space is cooled down to condense in the outer container space such that condensed gas may be collected from the outer container space via an outer container space outlet.
13 . The gas generator according to claim 1 wherein the main rotor body is designed as a pump unit to pump a liquid from a liquid supply reservoir via pump channels forming part of the main rotor body channels when the main rotor body is rotating.
14 . The gas generator according to claim 1 wherein the one or several cavitators are arranged with their axes of rotation being essentially perpendicular to the main rotor body centre axle being the axis of rotation of the main rotor body.
15 . The gas generator according to claim 1 wherein the one or several cavitators are arranged with their axes of rotation being essentially perpendicular to the radial direction of the main rotor body centre axle.
16 . The gas generator according to claim 1 wherein said cavitator channel inlet is arranged at or close to a leading end of the one or several cavitators and said cavitator channel outlet is arranged at or close to a trailing edge of the one or several cavitators when the one or several cavitators rotate with the main rotor body.