Seal for a joint or juncture – Seal between fixed parts or static contact against... – Contact seal for a pipe – conduit – or cable
Reexamination Certificate
1999-02-15
2001-11-06
Sandy, Robert J. (Department: 3626)
Seal for a joint or juncture
Seal between fixed parts or static contact against...
Contact seal for a pipe, conduit, or cable
C277S616000
Reexamination Certificate
active
06311986
ABSTRACT:
FIELD AND BACKGROUND OF THE INVENTION
The present invention relates, in general, to separation systems and, in particular, to a new and useful seal joint for a separator for separating multiple phase mixture into separate vapor and liquid phases utilizing pairs of centrifugal cyclone separators.
Most of the known gas/oil separation systems rely on natural or gravity separation which requires large vessels to achieve the desired separation performance. When natural separation is used in a relatively small vessel, the throughput or vapor flux of that system is significantly smaller when compared to other systems not relying on natural separation. An example of a system which uses natural separation is described in U.S. Pat. No. 4,982,794.
One known separation system is disclosed in U.K. Patent Application No. GB 2 203 062A and uses centrifugal separation for a primary separation stage and inertial separation (i.e., scrubbers) for a second stage of separation. Although this system most likely has higher separation capacities than a system relying on natural separation, it most likely has higher separation capacities than a system relying on natural separation, it most likely has less capacity when compared to a system that could employ centrifugal separation for both stages.
U.S. patent application Ser. No. 08/337,359, filed Nov. 10, 1994, abandoned in favor of Continuation U.S. Pat. application Ser. No. 08/695,947, filed Aug. 13, 1996, the text of which are hereby incorporated by reference as though fully set forth herein, discloses an improved separator which uses centrifugal separation modules for the primary and secondary stages of separation.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a seal joint which establishes an effective seal between the internals of the gas/liquid or gas/oil separator, and the pressure vessel inlet for the separator.
Accordingly, another object of the invention is to provide an arrangement for separating a gas and liquid mixture, the arrangement having a vessel with an inlet for entry of the gas and liquid mixture and an outlet for exit of a separated gas, and centrifugal separation means in the vessel for centrifugally separating the gas from the mixture; the improvement comprising: the vessel including an internal tubular member having an open end; an inlet tube having an open end extending toward the open end of the internal tubular member; a seal joint ring fixed to the open end of the internal tubular member, the ring having an annular trough which is open toward the open end of the inlet tube; and a gasket in the trough engaged by the open end of the inlet tube for sealing the open end of the inlet tube to the open end of the internal tubular member.
The various features of novelty which characterize the invention are pointed out with particularity in the claims annexed to and forming a part of this disclosure. For a better understanding of the invention, its operating advantages and specific objects attained by its uses, reference is made to the accompanying drawings and descriptive matter in which a preferred embodiment of the invention is illustrated.
REFERENCES:
patent: 3238538 (1966-03-01), Turner
patent: 3545794 (1970-12-01), Wise et al.
patent: 4479656 (1984-10-01), Collins
patent: 5071140 (1991-12-01), Quevedo Del Rio
Millas George S.
Richardson Robert A.
Baraona Robert C.
Hudson Products Corporation
Marich Eric
Sandy Robert J.
Schwing Karlena D.
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