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AssigneesExplo Engineering GmbH, Martin GmbH fur Umwelt- und Energietechnik, Hitachi Zosen Inova AG
InventorsMarc Peter Hangartner, Paul Müller, Marco Daniel Iseli
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A fastening device for a cleaning device by introducing pressure waves through a hollow nozzle into a boiler to be cleaned through an opening in the boiler wall has a housing body, which can be fastened to the boiler wall with the aid of a fastening flange on the boiler side, the hollow nozzle being concentric with the opening in the boiler wall and orthogonal to the boiler axis. Damping units are arranged at regular angular intervals around the hollow nozzle in the longitudinal direction thereof and are each fastened with one free end to the boiler-side fastening flange and with the respective other free end to the housing body. When the pressure waves are triggered, the housing body is resiliently retained in the longitudinal direction away from the boiler and brought back into the initial position.
A fastening device for a cleaning device based on the introduction of high-amplitude pressure waves through a hollow cylindrical nozzle into a boiler to be cleaned through an opening in the boiler wall, wherein the fastening device comprises:
The fastening device according to claim 5, wherein the two tension or compression springs of each damping unit arranged in a row in their longitudinal direction are arranged around one of the second longitudinal rods and are supported on the centre plate directly or on bushes facing the tension or compression springs on this centre plate, while the associated second longitudinal rod is supported through an opening in the centre plate, while the associated second longitudinal rod is passed through an opening in the centre plate.
The fastening device according to claim 9, wherein the closure housing has a guide tube in which the hollow cylindrical nozzle is freely guided.
The fastening device according to claim 10, wherein the guide tube is double-walled with an inner cavity which is provided helically from a feed point into the guide tube is pointing away from the boiler to the front edge of the guide tube, wherein the inner cavity can be supplied with a cooling fluid from a fluid source arranged outside the closure housing, and wherein the wall directed towards the boiler wall or the front edge of the guide tube have openings for an outlet of the cooling fluid.
The fastening device according to claim 11, wherein the guide tube is movable relative to the boiler wall flange in the longitudinal direction of the hollow cylindrical nozzle, and wherein the guide tube being at least partially retractable from the opening in the boiler wall in a rearward rest position.
The fastening device according to claim 13, wherein the closure wings are double-walled with an inner cavity, wherein the inner cavity can be supplied with a cooling fluid from a fluid source arranged outside the closure housing and the wall of the closure wings directed towards the boiler wall has openings for an outlet of the cooling fluid.
The fastening device according to claim 15, wherein the pivot axis is fastened to a trolley which is displaceable in the longitudinal direction of this hollow cylindrical nozzle on a trolley profile provided above the hollow cylindrical nozzle.
Dependencies are inferred from the claim text.