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Title:
SEMI-SPHERICAL ENTRAINMENT TYPE HIGH FLOW SELF-PRIMING CENTRIFUGAL PUMP
Document Type and Number:
WIPO Patent Application WO/2019/184010
Kind Code:
A1
Abstract:
A semi-spherical entrainment type high flow self-priming centrifugal pump, comprising a semi-spherical entrainment system (1), a pump body (2), and a pump inlet pipe (3). The semi-spherical entrainment system (1) is disposed above the pump body (2), and comprises four entrainment cavities, i.e., a spherical surface entrainment inner cavity (21), a first level entrainment cavity (29), a second level entrainment cavity (13), and a third level entrainment cavity (11). The spherical surface entrainment inner cavity (21) is a double circular pipeline which rises in a spiral overlapping manner, wraps a semi-sphere, and increases the entrainment area while improving the entrainment capability. The first level entrainment cavity (29) is in communication with the second level entrainment cavity (13) and the third level entrainment cavity (11) by sliding a sliding thrust core (23) upwards. The second level entrainment cavity (13) performs entrainment on the gas in the pump inlet pipe (3), and the first level entrainment cavity (29) performs entrainment on the gas in a pump cavity. The self-priming centrifugal pump improves the conventional structure that a pump inlet pipeline is singly performed entrainment, improves the self-priming efficiency, and saves the self-priming time.

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Inventors:
SHI WEIDONG (CN)
CHANG HAO (CN)
LI WEI (CN)
LIU JIANRUI (CN)
ZHOU LING (CN)
WANG CHUAN (CN)
Application Number:
PCT/CN2018/082953
Publication Date:
October 03, 2019
Filing Date:
April 13, 2018
Export Citation:
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Assignee:
UNIV JIANGSU (CN)
International Classes:
F04D9/06; F04D29/42
Foreign References:
CN202370856U2012-08-08
CN101429941A2009-05-13
CN204663902U2015-09-23
CN101922454A2010-12-22
JP2013057277A2013-03-28
JP2012072702A2012-04-12
Attorney, Agent or Firm:
JW IP LAW FIRM (CN)
Download PDF:
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