Vacuum compound heat insulating pipe

Vacuum compound heat insulating pipe

  • CN 101,644,372 A
  • Filed: 08/21/2009
  • Published: 02/10/2010
  • Est. Priority Date: 08/21/2009
  • Status: Active Application
First Claim
Patent Images

1. , vacuum composite heat-insulating, pipe and outer tube is characterized in that being provided with independent stainless steel or the carbon steel vacuum heat insulation tube of one deck at least in comprising between inner and outer pipe, the double-deck vacuum-pumping tube of this vacuum heat insulation tube for only being welded with corrosion resistant plate or carbon steel board.

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