WING TYPE ENERGY-SAVING DOUBLE-SUCTION CENTRIFUGAL FAN

WING TYPE ENERGY-SAVING DOUBLE-SUCTION CENTRIFUGAL FAN

  • CN 2,031,852 U
  • Filed: 01/26/1988
  • Issued: 02/01/1989
  • Est. Priority Date: 01/26/1988
  • Status: Active Grant
First Claim
Patent Images

1. , the energy-conservation double-suction centrifugal pump blower fan of a kind of wing formula, form by spiral case (1), impeller (7), impeller (7) comprises impeller outer end plate (2), impeller shaft (6), blade (9), it is characterized in that spiral case (1) adopts logarithmic spiral, and establish at impeller (7) middle part one with the core dish (4) of impeller symmetry, blade (9) is a palintrope wing formula, its cross section is an airfoil, the arrangement of impeller (7) upper blade is to be uniformly distributed along the circumference in bead filler dish (4) both sides by some airfoil blades (9) to form, and the blade of both sides (9) is taked to offset and arranged.

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