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Filtration equipment

  • US 5,525,220 A
  • Filed: 11/22/1994
  • Issued: 06/11/1996
  • Est. Priority Date: 12/22/1993
  • Status: Expired due to Term
First Claim
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1. Filtration equipment comprising a filter vessel, a plurality of hollow fiber modules each having upper and lower filtrate outlet ports vertically disposed and upward-detachably fixed in said filter vessel, a common upper filtrate collection compartment provided in the upper part of said filter vessel and communicating with the upper filtrate outlet ports of said hollow fiber modules, a lower filtrate collection casing having no outlet port and communicating with the lower filtrate outlet ports of said hollow fiber modules, and at least one conduit for allowing said lower filtrate collection casing to communicate therethrough with said common upper filtrate collection compartment, said hollow fiber modules being fluid-tightly joined with said lower filtrate collection casing by means of respective jointing means each provided for one hollow fiber module;

  • and wherein fluid fed into said filter vessel is filtered through the walls of porous hollow fibers in said hollow fiber modules, while the filtrate is conducted into said common upper filtrate collection compartment via said upper filtrate outlet ports of said hollow fiber modules as well as via said lower filtrate outlet ports of said hollow fiber modules, said lower filtrate collection casing and said at least one conduit, and the filtrate collected in said common upper filtrate collection compartment is then discharged therefrom out of said filter vessel.

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