Jiangsu University

Weidong Shi

Hao Chang

Wei Li

Shiming Hong

Guangjie Peng

Ling Zhou

Xiaowei Li

Yong Zhu

Jialin Du

Desheng Zhang

Qiang Pan

Jianrui Liu

Tao Lang

Yangyang Wei

Chuan Wang

Weidong Cao

A floating counter-rotating vortex-eliminating device for a pump station and the pump station; the floating counter-rotating vortex-eliminating device for the pump station includes a floating driving disc, a counter-rotating gear box, a reverse-rotating disc, a plane bearing, an elastic element, and a balance weight; the floating driving disc floats on a liquid surface near a water suction end of the pump station and is driven to rotate by power generated by a vortex; the floating driving disc is connected to the reverse-rotating disc through the counter-rotating gear box, such that the reverse-rotating disc and the floating driving disc have different rotating directions; the plane bearing is mounted at a bottom of the reverse-rotating disc, and the plane bearing is connected to the balance weight through the elastic element to prevent inclination.

Floating counter-rotating vortex-eliminating device for pump station, and pump station

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.

Self-priming apparatus for quick no-water startup

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.

Quick startup device for centrifugal pump

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.

Self-priming starting device for centrifugal pump

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.

Hemispherical entrainment-type high-flow self-priming centrifugal pump

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Jiangsu, China

Weidong Shi