Quick no-water startup apparatus for centrifugal pump

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United States of America Patent

PATENT NO 11905976
APP PUB NO 20230265850A1
SERIAL NO

17787941

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Abstract

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A quick no-water startup apparatus for a centrifugal pump includes, from top to bottom in sequence, one-way passages (1), a self-priming chamber housing (41), sliding devices (5), a self-priming chamber (4), chamber partition plates (2) a concave-convex impeller (3), inlet channels (6) connected on two sides of the self-priming chamber (4), a spring device (7) of an upper-side x-shaped gas-liquid separation device, the upper-side x-shaped gas-liquid separation device (8), upper and middle-side gas-liquid separation device connecting shafts (9), a middle-side gas-liquid separation device (10), lower-side backflow-type gas-liquid separation devices (11), v-shaped backflow channels (122), an inverted v-shaped inlet channel (121), and an inlet. The quick no-water startup apparatus of the present invention enables the centrifugal pump to directly enter a normal operating condition after no-water startup, and 36 times of air exhaust can be completed while the concave-convex impeller (3) in the self-priming chamber (4) rotates by a circle in the early stage. Besides, the apparatus is provided with the upper, middle, and lower gas-liquid separation devices to fully realize separation of gas and liquid, so that gas can be exhausted more quickly and the chamber is filled with water. Therefore, the working efficiency is significantly improved and the operation process is greatly simplified.

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Patent Owner(s)

Patent OwnerAddress
JIANGSU UNIVERSITYZHENJIANG CITY JIANGSU PROVINCE 212013 JINGKOU DISTRICT ROAD NO 301 ZHENJIANG CITY JIANGSU PROVINCE 212013

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chang, Hao Jiangsu, CN 45 120
Du, Jialin Jiangsu, CN 5 14
Hong, Shiming Jiangsu, CN 6 7
Peng, Guangjie Jiangsu, CN 6 8

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