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公开(公告)号：US20220325716A1
公开(公告)日：2022-10-13
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
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.
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公开(公告)号：US20230313801A1
公开(公告)日：2023-10-05
申请号：US17914366
申请日：2021-11-01
申请人： Jiangsu University
发明人： Xiaowei LI , Hao CHANG , Jialin DU , Guangjie Peng , Weidong SHI , Shiming HONG
CPC分类号： F04D9/02 , B01D19/0052 , B01D19/0036
摘要： A self-priming apparatus for quick no-water startup includes a front-stage inlet chamber, a middle-stage gas-liquid separation chamber, and a rear-stage gas-liquid separation chamber. A plurality of two-stage chamber gas-liquid separation one-way channels are symmetrically arranged between adjacent chambers of the front-stage inlet chamber, the middle-stage gas-liquid separation chamber and the rear-stage gas-liquid separation chamber. A plurality of one-way outlets are symmetrically arranged in an inner cavity of the rear-stage gas-liquid separation chamber. By decreasing or increasing the volumes of an outer cavity and an inner cavity of the front-stage inlet chamber, water is sucked in due to pressure difference and water intake and preliminary gas-liquid separation are carried out. The middle-stage gas-liquid separation chamber is configured for gas-liquid separation. By decreasing or increasing the volume of the inner cavity of the rear-stage gas-liquid separation chamber, water is rapidly expelled due to pressure difference and gas-liquid separation is carried out.
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公开(公告)号：US20220120280A1
公开(公告)日：2022-04-21
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
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.
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