US 11,898,572 B2
Impeller wake vortex dissipation device under stall condition of mixed flow pump
Wei Li, Zhenjiang (CN); Leilei Ji, Zhenjiang (CN); Ling Zhou, Zhenjiang (CN); Yong Zhu, Zhenjiang (CN); Sizhuo Ma, Zhenjiang (CN); and Handong Qi, Zhenjiang (CN)
Assigned to JIANGSU UNIVERSITY, Zhenjiang (CN)
Appl. No. 17/781,054
Filed by JIANGSU UNIVERSITY, Zhenjiang (CN)
PCT Filed Jul. 16, 2021, PCT No. PCT/CN2021/106645
§ 371(c)(1), (2) Date Oct. 27, 2022,
PCT Pub. No. WO2022/222288, PCT Pub. Date Oct. 27, 2022.
Claims priority of application No. 202110428441.1 (CN), filed on Apr. 21, 2021.
Prior Publication US 2024/0018969 A1, Jan. 18, 2024
Int. Cl. F04D 29/18 (2006.01); F04D 29/44 (2006.01); F04D 11/00 (2006.01)
CPC F04D 29/18 (2013.01) [F04D 11/00 (2013.01); F04D 29/44 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An impeller wake vortex dissipation device under stall condition of a mixed flow pump, comprising a guide vane and a wake vortex dissipation device, wherein an inside of the mixed flow pump is evenly divided into N guide vane channels by N evenly distributed guide vanes; the wake vortex dissipation device is set in each guide vane channel, and one end of the wake vortex dissipation device is fixedly connected to the inner wall of the pump body, so each wake vortex dissipation device is located in a middle and upper part of each guide vane channel and does not occupy a lower guide vane channel; and the wake vortex dissipation device is provided with a dissipative hole pair, which is used to dissipate energy of an impeller wake vortex.