Testing shaft seals without pressuring system to operating press

Details Testing shaft seals without pressuring system to operating press Testing shaft seals without pressuring system to operating press

1976-04-21

1977-10-04

Queisser, Richard C.

Measuring and testing

With fluid pressure

Leakage

G01M 308

Patent

active

040517179

ABSTRACT:
A seal on a rotatable shaft normally having high pressure sealant liquid behind same with a volatile fluid such as a monomer or light hydrocarbon diluent under high pressure being passed along an annulus in front of same, which annulus terminates in a pressurized vessel, is tested as follows. Before pressuring up the vessel, lubricant liquid under low pressure is passed through the annulus and the shaft is operated for a short time. The bearings are then inspected for vibration, smoking or a surge of sealant liquid along the annulus which would indicate seal failure. This is of particular utility in testing seals on pumps in olefin polymerization reactors.

REFERENCES:
patent: 2467960 (1949-04-01), Brady, Jr.
patent: 2951363 (1960-09-01), Diodene
patent: 3180135 (1965-04-01), Cain, Jr. et al.
patent: 3375015 (1968-03-01), Swearingen
patent: 3405109 (1968-10-01), Rohlfing
patent: 3872713 (1975-03-01), Ilfrey et al.

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