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Combined boiler feed and condensate pump

  • US 5,215,448 A
  • Filed: 12/26/1991
  • Issued: 06/01/1993
  • Est. Priority Date: 12/26/1991
  • Status: Expired due to Term
First Claim
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1. A pump for drawing the condensate from a condenser and feeding it to a steam boiler, the combination comprising:

  • an elongate casing adapted to be connected in a pipeline having an inlet for receiving the condensate from a steam condenser and an outlet for feeding the condensate to a steam boiler;

    a pump shaft mounted in said casing rotating in a pair of bearings spaced along said shaft and fixed in said casing;

    an electric motor mounted in said casing connected to one end of said shaft for driving it;

    control means for operating said electric motor;

    an inducer pump mounted at the other end of said shaft, driven by said shaft;

    a multiple stage centrifugal feed pump located in said casing driven by said shaft and receiving condensate from the inducer pump, pumping said condensate to a higher pressure suitable for feeding a steam boiler and delivering said condensate to the outlet of said pump, the multiple stage centrifugal feed pump being located adjacent said inducer pump; and

    said inducer pump being of the type to produce sufficient positive pressure for properly feeding condensate to said feed pump.

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