CENTRIFUGAL PUMP IMPELLER (VERSIONS),申请号EA20140000074-传众专利搜索

CENTRIFUGAL PUMP IMPELLER (VERSIONS)

申请公布号：EA024932(B1)

申请号：EA20140000074

申请日期：2009.05.27

申请公布日期：2016.11.30

申请人：

WEIR MINERALS AUSTRALIA LTD

发明人：BURGESS Kevin, Edward;LIU Wien-Jie;LAVAGNA Luis, Moscoso

分类号：F04D29/22;F04D7/04;F04D29/24

主分类号：F04D29/22

摘要：According to the invention the impeller 40 is provided for use in a centrifugal pump 10, comprising a shroud 12 with inside installed chamber 20, inlet feeding material injected in the chamber, and outlet releasing material from the chamber, wherein the impeller 40 is installed for rotation during use in the chamber around axis of rotation, and comprises a front shroud 50, and a back shroud 51, each of them has the main internal surface in the plane substantively at the right angle to the axis of rotation, and multiple pumping vanes 42 therebetween, and each having a leading edge 43 in the region of an impeller inlet and a trailing edge 44, wherein the front shroud 50 has an arcuate inner face in the region of the impeller inlet 48, having profile determined by the following: y=-2.3890009903x+19.4786939775x-63.2754154980x+102.6199259524x-83.4315403428x+27.7322233171, where the axis yis in the plane of the main inner face of the back shroud, the axis xis coaxial with the axis of rotation, y=y/(0.5×D), x=x/B, wherein x and y pre-determine actual coordinates of the arcuate inner face of the impeller front shroud, D, being the outside diameter of the impeller, is 550 mm, and B, being the width of impeller outlet, is 72 mm.