FIELD: sealing technology; sealing shafts of pumps handling highly inflammable, combustible and toxic liquids. SUBSTANCE: end seal is made in form of multi-stage seal including main and auxiliary stages. Auxiliary stage is made in form of hydraulic seal consisting of two seals with cavity between them connected with sealing liquid source. Located between main and auxiliary stages of seal is drain hermetic chamber having branches for escape of liquid fraction to hermetic reservoir and gaseous fraction either to hermetic reservoir or for burning. Branches are fitted with shut-off control fittings. EFFECT: enhanced reliability of sealing. 3 dwg
Title | Year | Author | Number |
---|---|---|---|
MULTIPLE-STEPPED END SEALING DEVICE FOR SHAFT | 2004 |
|
RU2282085C1 |
END SEAL FOR REVOLVING SHAFT | 1996 |
|
RU2116535C1 |
MULTISTAGE END SEAL | 0 |
|
SU1603115A1 |
CENTRIFUGAL EXTRACTOR | 2009 |
|
RU2393906C1 |
END SEAL OF ROTATING SHAFT | 2000 |
|
RU2168086C1 |
CENTRIFUGAL EXTRACTOR | 2013 |
|
RU2566137C2 |
DEVICE FOR SORPTION NEUTRALIZATION OF GASES | 2004 |
|
RU2254904C1 |
PRIMARY CIRCULATION PUMP UNIT | 2009 |
|
RU2418197C1 |
LIQUID-RING MACHINE | 2004 |
|
RU2271453C2 |
TANK-THERMOS | 2000 |
|
RU2177900C1 |
Authors
Dates
1998-07-27—Published
1996-07-09—Filed