Hydrocyclone construction
AssigneeA. R. Wilfley & Sons, Inc.
InventorsJohn F. Duvall, Mike Wilfley, Carl R. MacLachon
Life of this patent
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Abstract
A hydrocyclone device having complementary upper vortex finder and lower cone units each made of hard polyurethane together with a resilient, flexible, replaceable, polyurethane liner having a positive sealing flange associated therewith. The sealing flange of the liner complements with and engages with complementary sealing surfaces on the vortex finder and the lower cone unit when they are joined together by respective threaded portions. Thus, only three elements make up the basic hydrocyclone device with greatly improved resistance to leakage thereof. An outlet opening at the bottom end of the lower cone unit can also be provided with an adjusting unit and a wear insert therewith.
Claims14
A hydrocyclone device comprising:
- an upper hollow rigid body provided with a tangential inlet, an inner wall surface, an axially directed outlet and a lower connecting end having a first annular sealing surface thereon;
- a lower hollow conical body having an upper connecting end provided with a second annular sealing surface thereon, said conical body converging downwardly and terminating in a lower outlet, means designed for preventing leakage of fluid between connecting ends of a pair of bodies to be interconnected together including a resilient replaceable inner liner inserted only into said lower conical body, said liner including an inner wall surface forming an uninterrupted continuation of the inner wall surface of said upper body when said device is assembled and having a circumferential flange at its upper end disposed on said second annular sealing surface;
- and attaching means for attaching said first and second annular sealing surfaces of said upper and lower connecting ends defined by an externally treaded projection on one of said bodies and internally threaded recess on the other of said bodies complementary to said projection for threadedly interconnecting said upper body and said conical body together, said circumferential flange held between said first and second annular sealing surfaces, said attaching means having no extra fastening elements other than said externally threaded projection on said one of said bodies and internally threaded recess on said other of said bodies for interconnection of the entire device.
A hydrocyclone device comprising:
- an upper body with a lower connecting end having a first annular sealing surface thereon and a lower body having an upper connecting end with a second annular sealing surface thereon, and means for preventing leakage of fluid between said connecting ends of said upper and lower bodies including a resilient replaceable inner liner inserted only into said lower conical body including an inner wall surface forming a continuation of an inner wall surface of said upper body when said device is assembled, said liner including a circumferential flange at its upper end disposed on said second annular sealing surface, and attaching means for attaching said first and second annular sealing surfaces of said upper and lower connecting ends defined by an externally threaded projection and an internally threaded recess on the other of said bodies complementary to said projection for threadedly interconnecting said upper body and said conical body together, said circumferential flange held between said first and second annular sealing surfaces;
- and an annular rib and a complementary groove disposed in facing relation to one another between said bodies, said rib and said groove disposed in outer spaced concentric relation to said attaching means, said rib being inserted into said groove when said device is assembled.
Dependencies are inferred from the claim text.