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Stacked disk coalescer

  • US 5,401,404 A
  • Filed: 01/21/1993
  • Issued: 03/28/1995
  • Est. Priority Date: 01/21/1993
  • Status: Expired due to Term
First Claim
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1. An oil-water separation system comprising:

  • a first coalescer, said first coalescer comprising;

    a housing having an inlet for receiving an oil-water mixture and an outlet connectable to a conduit;

    a stack of grooved oleophilic disks located within said housing for coalescing oil from said oil-water mixture flowing between said disks from said inlet to said outlet wherein adjacent disks are touching; and

    a means for forcing said oil-water mixture to flow between said disks;

    a first conduit having first and second ends, said first end being connected to said outlet; and

    an oil separator, said separator comprising;

    a housing having an inlet for receiving fluids, an upper outlet for removing separated oil, and a lower outlet for removing separated water, said separator inlet being connected to said second end of said first conduit;

    a second conduit having first and second ends, said conduit being attached to said lower outlet at said second conduit first end; and

    a second coalescing unit comprising;

    a housing having an inlet for receiving fluid and an outlet, said second conduit second end being connected to said second coalescing unit inlet;

    a stack of grooved oleophilic disks located within said housing for coalescing oil from said oil-water mixture flowing between said disks from said inlet to said outlet, wherein adjacent disks are touching and wherein said stacked disks define a mesh having a greater numerical value than a mesh defined by said first coalescer stacked disks and wherein said mesh defined by said second coalescing unit stacked disks is coarse enough to prevent coalesced oil from being forced downstream in reduced drop sizes; and

    a means for forcing said water to flow between said disks.

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