Auxiliary shaft seal flushing system of a centrifugal pump and an axial flow pump

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United States of America Patent

PATENT NO 12085092
APP PUB NO 20170234332A1
SERIAL NO

15519299

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Importance

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Abstract

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An auxiliary shaft seal flushing system of a centrifugal pump and an axial flow pump, comprising a main running pump and a standby pump which are provided with a same shaft seal flushing system respectively, the shaft seal flushing system of the main running pump and that of the standby pump being connected in parallel to form a common shaft seal flushing system. The common shaft seal flushing system comprises: a first outlet pipe connected to an outlet of the main running pump and a first switch valve provided on the first outlet pipe for switching the flushing fluid, a second outlet pipe connected to an outlet of the standby pump and a second switch valve provided on the second outlet pipe for switching the flushing fluid, and a first fluid guide pipe connected to the outlets of the first outlet pipe and the second outlet pipe; the outlet of the first fluid guide pipe is respectively connected to a flushing fluid inlet on a sealing gland of the main running pump by a third outlet pipe and connected to a flushing fluid inlet on a sealing gland of the standby pump by a fourth outlet pipe. The present invention can keep the parameters of the fluid material in sealed cavities of the main and standby pumps the same at all times.

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Patent Owner(s)

Patent OwnerAddress
TIANJIN CRDT FLUID CONTROL SYSTEM LTDE66 NO 1 SIZHI RD XUEFU INDUSTRY PARK XIQING DISTRICT TIANJIN 300382

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Xing, Tianyi Tianjin, CN 12 96
Xing, Yu Tianjin, CN 17 18

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