Smoke exhausting and air changing pipe

Smoke exhausting and air changing pipe

CN
  • CN 103,015,683 A
  • Filed: 12/12/2012
  • Published: 04/03/2013
  • Est. Priority Date: 12/12/2012
  • Status: Active Application
First Claim
Patent Images

1. smoke discharge ventilation pipeline, it is characterized in that:

  • this smoke discharge ventilation pipeline is the polygon pipeline, upper at the internal face (1) of the one side of this pipeline at least or outside wall surface (2) is provided with at least one enhancing muscle (3) parallel with pipeline axial.

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