Title:
BLADE LOAD DISTRIBUTION-BASED METHOD FOR DESIGNING CENTRIFUGAL-PUMP COMPOUND IMPELLER
Document Type and Number:
WIPO Patent Application WO/2021/129261
Kind Code:
A1
Abstract:
Provided is a blade load distribution-based method for designing a centrifugal-pump compound impeller: calculating an initial impeller to obtain the Euler head gradient coefficient, and determining whether long blades should be replaced by short blades for the impeller; while ensuring that the total load of the long and short blades is consistent, performing rear loading design for the long blades and performing front loading design for the short blades, such that the composite impeller can significantly improve the flow conditions inside the impeller. The invention improves the jet-wake phenomenon at the exit of the impeller, enhances the anti-cavitation performance of the centrifugal pump, and reduces the impact of pressure pulsation on the pump, making the flow more stable.
Inventors:
ZHU ZUCHAO (CN)
LI XIAOJUN (CN)
CHEN BO (CN)
SONG BAOLIN (CN)
CHEN XIAOWU (CN)
LI XIAOJUN (CN)
CHEN BO (CN)
SONG BAOLIN (CN)
CHEN XIAOWU (CN)
Application Number:
PCT/CN2020/130308
Publication Date:
July 01, 2021
Filing Date:
November 20, 2020
Export Citation:
Assignee:
UNIV ZHEJIANG SCIENCE & TECH (CN)
International Classes:
F04D29/22; F04D29/24; F04D29/66
Foreign References:
| CN111271317A | 2020-06-12 | |||
| CN106202795A | 2016-12-07 | |||
| CN103047173A | 2013-04-17 | |||
| CN104358707A | 2015-02-18 | |||
| CN209761848U | 2019-12-10 | |||
| DE102015211173A1 | 2016-07-14 | |||
| JP2018132012A | 2018-08-23 |
Attorney, Agent or Firm:
SUZHOU LUNGHENG INTELLECTUAL PROPERTY FIRM (GENERAL PARTNER) (CN)
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