Title:
OPTIMAL DESIGN METHOD FOR JET-TYPE SELF-PRIMING CENTRIFUGAL PUMP
Document Type and Number:
WIPO Patent Application WO/2019/075777
Kind Code:
A1
Abstract:
In order to solve the problem that the shutoff head cannot be increased in the event of inlet impact loss, disk friction loss, and a fixed outer diameter of a impeller, an optimal design method for a jet-type self-priming centrifugal pump is provided, which is an optimal design method for cutting at an impeller inlet (1), providing inclinations on a front cover plate (2) and a rear cover plate (3), and providing splitter blades (4). The method provides a parameter selection and an optimal method for the cutting lengths a, b of two sides, i.e. a vertical side and a horizontal side, of the inlet, a diameter Dt of the inclined position of the front and rear cover plates (2, 3), the wall thickness δ1 of the front cover plate (2) and the rear cover plate (3) at an exit of the impeller after the inclination optimization, the number Z1 of the long blades after providing the splitter blades (4), a wrap angle Φ of the long blades after optimization, an inlet diameter Dsi of the splitter blades (4), an arc length S2 of the splitter blades (4), an axial offset degree θ1 of the splitter blades (4), an inclination angle α2 of the splitter blades (4), and the thickness of the splitter blades (4). The method is simple in implementation and can effectively improve the performance of the jet-type self-priming centrifugal pumps.
Inventors:
DONG LIANG (CN)
PAN QI (CN)
DAI CUI (CN)
LIU HOULIN (CN)
TAN MINGGAO (CN)
WANG YONG (CN)
WANG KAI (CN)
WU XIANFANG (CN)
PAN QI (CN)
DAI CUI (CN)
LIU HOULIN (CN)
TAN MINGGAO (CN)
WANG YONG (CN)
WANG KAI (CN)
WU XIANFANG (CN)
Application Number:
PCT/CN2017/108519
Publication Date:
April 25, 2019
Filing Date:
October 31, 2017
Export Citation:
Assignee:
UNIV JIANGSU (CN)
International Classes:
F04D29/22; F04D29/24; F04D29/30
Foreign References:
| CN103994099A | 2014-08-20 | |||
| CN105971931A | 2016-09-28 | |||
| CN106777526A | 2017-05-31 | |||
| JP2015135068A | 2015-07-27 |
Attorney, Agent or Firm:
JW IP LAW FIRM (CN)
Download PDF: