OPEN IMPELLER OF CENTRIFUGAL PUMP FOR HIGH SPECIFIC GRAVITY MICRO-SLURRY

WIPO Patent Application WO/2019/225823

A1

The present invention relates to an open impeller used in a centrifugal pump for high specific gravity micro-slurry. More specifically, in a slurry-only centrifugal pump, which transfers a solid mixture having a high specific gravity, such as iron powder generated when a steel plant and the like are operated, the present invention relates to an open impeller used for a pump for high specific gravity micro-slurry, the open impeller being employed inside a single casing in order to resolve problems of low efficiency, maintenance and repair efficiency, difficulty in re-manufacturing, and the like, which are the problems of a conventional slurry pump, and having an optimized impeller vane angle so as to have increased efficiency, enable flow path clogging to be prevented, and enable re-manufacturing to be simple. To this end, the present invention has a front vane formed in a curved shape that is curved in the direction opposite to the rotation of a disc from a first position at the center portion side of the disc up to a second position at which the vane comes in contact with the outer peripheral surface of the disc, wherein the curved shape has a curvature radius that gradually increases from the first position toward the second position.

LEE IN SIK (KR)
RYU EUN JUNG (KR)
LEE SUK GYEONG (KR)

PCT/KR2018/015252

November 28, 2019

December 04, 2018

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SHIN GWANG CO LTD (KR)

F04D29/24; F04D7/04

KR101156783B1	2012-06-25
JP2013147997A	2013-08-01
KR200404558Y1	2005-12-26
KR950006734U	1995-03-21
KR19980012585U	1998-06-05

CHOI, Jong-in (KR)

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