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公开(公告)号：US20240263634A1
公开(公告)日：2024-08-08
申请号：US18564053
申请日：2022-05-24
Applicant: FLSmidth A/S
Inventor： Luis Fernando Echeverri
IPC: F04D13/08
CPC classification number: F04D13/08
Abstract: A variable geometry infeed shelf (23) is configured to be installed within a tank pump (1) and provides supplemental internal rigid stationary fluid boundary surfaces within a cylindrical tank assembly (7) of the tank pump (1). The variable geometry infeed shelf (23) promotes uniform distribution of feeding flow around the entire volume of the tank, favouring retention time and reducing bypassing and local peak vertical velocities of a tank infeed flow path (45) in a vertical direction (Z1) within the tank assembly (7). By virtue of its design, the variable geometry infeed shelf (23) reduces stagnation zones, air entrainment and turbulence within the tank assembly (7), thereby improving pumping efficiency of a centrifugal pump (20) operating within the tank assembly (7).
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Patent Agency Ranking
公开(公告)号：US20210053775A1
公开(公告)日：2021-02-25
申请号：US16977713
申请日：2019-03-01
Applicant: FLSmidth A/S
Inventor： Luis Fernando Echeverri
Abstract: An internal inclined sub-channel, or ramp device, for suspending and/or re-suspending solids within a pipeline system during transport of slurry may be provided to various components of the slurry transport system to control or reduce localized and severe wear that often occurs in slurry pumps. Embodiments of the ramp device may be adequately configured to alter slurry multiphase flow patterns and/or disrupt traditional moving/sliding bed regime phenomena. Embodiments of the ramp device may be adequately configured to raise coarse abrasive particulates from bottom portions of a slurry pipe section—where a higher concentration and/or a larger presence of coarser particles may be present. Embodiments of the ramp device may be installed in proximity of and/or upstream of slurry pumps to prevent occurrences of severe localized wear at the inner diameter of the pump suction side wall around the bottom or 6 o'clock position.
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公开(公告)号：US10648480B2
公开(公告)日：2020-05-12
申请号：US16091961
申请日：2017-04-06
Applicant: FLSmidth A/S
Inventor： Luis Fernando Echeverri
Abstract: Provided are non-limiting embodiments of a wear-resistant impeller having a non-conventional blending provided between a surface of a vane (1) and a surface of at least one of a front side shroud (15) and a rear side shroud (16). The impeller may comprise both a rear side blending (3) and a front side blending (2), and the front side blending (2) may comprise a different geometry from the rear side blending (3). The blending preferably comprises a bulbous geometry which is uniquely adapted for optimizing flow patterns adjacent to the vane and between the front and rear side shrouds in a manner which discourages the formation of horseshoe vortices proximate the leading edge (6) of the vane (1) during operation. Through the reduction, mitigation, or elimination of horseshoe vortices, local high velocities and turbulence are generally minimized, and wear experienced by portions of the impeller (e.g., to one or more vanes) from flows of abrasive slurry can be reduced. Accordingly, the useable life of an impeller may be improved.
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公开(公告)号：US11230445B2
公开(公告)日：2022-01-25
申请号：US16977713
申请日：2019-03-01
Applicant: FLSmidth A/S
Inventor： Luis Fernando Echeverri
Abstract: An internal inclined sub-channel, or ramp device, for suspending and/or re-suspending solids within a pipeline system during transport of slurry may be provided to various components of the slurry transport system to control or reduce localized and severe wear that often occurs in slurry pumps. Embodiments of the ramp device may be adequately configured to alter slurry multiphase flow patterns and/or disrupt traditional moving/sliding bed regime phenomena. Embodiments of the ramp device may be adequately configured to raise coarse abrasive particulates from bottom portions of a slurry pipe section—where a higher concentration and/or a larger presence of coarser particles may be present. Embodiments of the ramp device may be installed in proximity of and/or upstream of slurry pumps to prevent occurrences of severe localized wear at the inner diameter of the pump suction side wall around the bottom or 6 o'clock position.
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公开(公告)号：US10907639B2
公开(公告)日：2021-02-02
申请号：US16469834
申请日：2017-12-14
Applicant: FLSmidth A/S
Inventor： Kenneth Lloyd Don , Luis Fernando Echeverri , John Semple Frater
Abstract: A suction pipe inlet device for a centrifugal pump, the device having a hollow tubular axisymmetric body along a longitudinal axis having an open first end adapted for fitting into or against a retention tank; an open second end adapted for fitting into or against an inflow end of a suction pipe having an outer pipe diameter and an inner pipe diameter; a converging section located closer to the retention tank; a diverging section located closer to the suction pipe; a throat located at the intersection point between the converging and diverging sections, the converging and diverging sections defining an interior converging-diverging geometry within the tubular axisymmetric body and the throat defining a minimum inner cross sectional area of the tubular axisymmetric body.
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公开(公告)号：US20190120242A1
公开(公告)日：2019-04-25
申请号：US16091961
申请日：2017-04-06
Applicant: FLSmidth A/S
Inventor： Luis Fernando Echeverri
Abstract: Provided are non-limiting embodiments of a wear-resistant impeller having a non-conventional blending provided between a surface of a vane and a surface of at least one of a front side shroud (15) and a rear side shroud (16). The impeller may comprise both a rear side blending gland a front side blending (2), and the front side blending (2) may comprise a different geometry from the rear side blending (3). The blending preferably comprises a bulbous geometry which is uniquely adapted for optimizing flow patterns adjacent to the vane and between the front and rear side shrouds in a manner which discourages the formation of horseshoe vortices proximate the leading edge (6) of the vane (1) during operation. Through the reduction, mitigation, or elimination of horseshoe vortices, local high velocities and turbulence are generally minimized, and wear experienced by portions of the impeller (e.g., to one or more vanes) from flows of abrasive slurry can be reduced. Accordingly, the useable life of an impeller may be improved.
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