公开(公告)号：US11078914B2

公开(公告)日：2021-08-03

申请号：US16966007

申请日：2018-04-13

申请人： Jiangsu University

发明人： Weidong Shi ,  Hao Chang ,  Wei Li ,  Jianrui Liu ,  Ling Zhou ,  Chuan Wang

IPC分类号： F04D9/02 ,  F04D1/00 ,  F04D9/06

摘要： A hemispherical entrainment-type high-flow self-priming centrifugal pump includes a hemispherical entrainment system, a pump body and a pump inlet pipe. The hemispherical entrainment system is disposed above the pump body. The hemispherical entrainment system comprises four layers of entrainment cavities, including a spherical entrainment interior cavity, a primary entrainment cavity, a secondary entrainment cavity and a tertiary entrainment cavity. The spherical entrainment interior cavity is a double circular pipeline that ascends in a spiral overlapping manner to wrap a hemispherical surface, and improves the entrainment capacity, while increasing the entrainment area. The primary entrainment cavity is allowed to be in communication with the secondary entrainment cavity and the tertiary entrainment cavity by upward sliding of a sliding check core. The secondary entrainment cavity entrains the gas in the pump inlet pipe, and the primary entrainment cavity entrains the gas in a pump cavity.

公开(公告)号：US11480180B2

公开(公告)日：2022-10-25

申请号：US17598287

申请日：2019-12-20

申请人： JIANGSU UNIVERSITY

发明人： Wei Li ,  Hao Chang ,  Weidong Shi ,  Ling Zhou ,  Weidong Cao ,  Yong Zhu ,  Tao Lang ,  Yangyang Wei

IPC分类号： F04D9/02 ,  F04D1/00

摘要： A self-priming starting device for a centrifugal pump is mounted on a water inlet pipe of the centrifugal pump and includes an outer housing, an inner housing, a primary spacer, a secondary spacer, an opening and closing disc and a tertiary spacer which are sequentially provided in the outer housing from top to bottom, and an elastic steel plate provided in the water inlet pipe. A drum is provided in the inner housing, and air inlet pipes and air discharging pipes are provided on the inner housing. The drum is provided with drum chambers and a three-blade support is provided in the drum. The opening and closing disc is provided with a vertical rod. A gas-liquid cutter is provided between the primary spacer and the secondary spacer. The primary spacer, the secondary spacer, the opening and closing disc and the tertiary spacer are provided with through-holes.

公开(公告)号：US11555497B2

公开(公告)日：2023-01-17

申请号：US17680327

申请日：2022-02-25

申请人： Jiangsu University

发明人： Xiaowei Li ,  Hao Chang ,  Guangjie Peng ,  Shiming Hong ,  Weidong Shi

IPC分类号： F04D9/02 ,  F04D9/04 ,  F04D29/66 ,  F04D15/00 ,  F04D9/00 ,  F04C2/356 ,  B01D19/00 ,  F04D13/06

摘要： The present invention provides a quick startup device for a centrifugal pump. The device includes an upper self-priming chamber, a lower self-priming chamber, and an inlet pipe sequentially arranged from top to bottom. The upper self-priming chamber and the lower self-priming chamber are integrally mounted on the inlet pipe. A main shaft and a hexagonal partition member rotatably mounted on the main shaft are arranged on an axis of the upper self-priming chamber. A blade tip of each partition plate is closely attached to an inner wall surface of the upper self-priming chamber. Three identical accommodation grooves are provided on an inner side of the upper self-priming chamber. A spring and a separation baffle are arranged in each accommodation groove, an exhaust hole is provided on one side of each accommodation groove, and an air intake pipe is provided on the other side of each accommodation groove.