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Title: CENTRIFUGAL PUMP AND SHAFT SEALING MEANS

Abstract

A description is given of sealing means between a hollow rotatable shaft and a stationary member surrounding the shaft which defines therewith a sealing space of annular cross-section, comprising a plurality of axially spaced rings held against seats by ring springs which serve to subdivide the sealing space- into a plurality of zones. Process gas introduced into the hollow shaft through a port communicating with a centrally located zone which iu turn communicates with a bore in the sleeve, is removed from the shaft through a second port communicating with an adjacent central zone and discharged through a second bore. A sealant gas is supplied to an end zone under a pressure sufficient to cause it to flow axially into adjacent zones and then maintained at a lower pressure than either the sealant gas source or the process gas inlet zone, preventing the sealant gas from entering the shaft and allowing gases leaking into the sealant gas to be withdrawn and led to a separator.

Inventors:
Issue Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4112973
Patent Number(s):
2951448
Assignee:
U.S. Atomic Energy Commission DTIE; NSA-15-007479
NSA Number:
NSA-15-007479
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-61
Country of Publication:
United States
Language:
English
Subject:
ENGINEERING AND EQUIPMENT; CENTRIFUGATION; GASES; PRESSURE

Citation Formats

Rushing, F.C. CENTRIFUGAL PUMP AND SHAFT SEALING MEANS. United States: N. p., 1960. Web.
Rushing, F.C. CENTRIFUGAL PUMP AND SHAFT SEALING MEANS. United States.
Rushing, F.C. Thu . "CENTRIFUGAL PUMP AND SHAFT SEALING MEANS". United States.
@article{osti_4112973,
title = {CENTRIFUGAL PUMP AND SHAFT SEALING MEANS},
author = {Rushing, F.C.},
abstractNote = {A description is given of sealing means between a hollow rotatable shaft and a stationary member surrounding the shaft which defines therewith a sealing space of annular cross-section, comprising a plurality of axially spaced rings held against seats by ring springs which serve to subdivide the sealing space- into a plurality of zones. Process gas introduced into the hollow shaft through a port communicating with a centrally located zone which iu turn communicates with a bore in the sleeve, is removed from the shaft through a second port communicating with an adjacent central zone and discharged through a second bore. A sealant gas is supplied to an end zone under a pressure sufficient to cause it to flow axially into adjacent zones and then maintained at a lower pressure than either the sealant gas source or the process gas inlet zone, preventing the sealant gas from entering the shaft and allowing gases leaking into the sealant gas to be withdrawn and led to a separator.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1960},
month = {9}
}