Nanofiber manufacturing device and head used for same

Abstract

A nozzle head 20 of an apparatus for producing nanofibers 1 comprises a raw material discharge surface 22 on which a raw material flow passage 25 for discharging a liquid raw material is arranged, and a gas discharge surface 23 which is arranged with an angle α (0<α≤90°) toward the raw material discharge surface 22 and on which a gas flow passage 26 for ejecting gas is arranged. The raw material flow passage 25 is orthogonal to the raw material discharge surface 22, the gas flow passage 26 is orthogonal to the gas discharge surface 23, and the raw material flow passage 25 and the gas flow passage 26 are arranged so that the liquid raw material discharged from the raw material flow passage 25 meets gas ejected from the gas flow passage 26.

1 . An apparatus for producing nanofibers comprising
 a raw material discharge surface on which a raw material flow passage for discharging a liquid raw material is arranged, and   a gas discharge surface which is arranged with an angle α (0<α≤90°) toward said raw material discharge surface and on which a gas flow passage for ejecting gas is arranged, wherein said raw material flow passage is orthogonal to said raw material discharge surface, said gas flow passage is orthogonal to said gas discharge surface, and said raw material flow passage and said gas flow passage are arranged so that said liquid raw material discharged from said raw material flow passage meets gas ejected from said gas flow passage.   
     
     
         2 . An apparatus for producing nanofibers claimed in  claim 1  comprising one or more flow passage sat of said one raw material flow passage and said one gas flow passage. 
     
     
         3 . An apparatus for producing nanofibers claimed in  claim 2  wherein a plurality of flow passage sets are provided and these flow passage sets are arranged in one direction so that said raw material flow passage and said gas flow passage are arranged on two linear lines parallel each other. 
     
     
         4 . An apparatus for producing nanofibers claimed in  claim 2  wherein a plurality of flow passage sets are provided and the plurality of flow passage sets are arranged annularly so that said raw material flow passage and said gas flow passage are arranged on the circumference of two circles which become concentric. 
     
     
         5 . An apparatus for producing nanofibers claimed in  claim 1  wherein an axis line of said raw material flow passage and an axis line of said gas flow passage are provided on a plane. 
     
     
         6 . An apparatus for producing nanofibers claimed in  claim 1  comprising one or more flow passage sets of a plurality of said raw material flow passage and said gas flow passage. 
     
     
         7 . An apparatus for producing nanofibers claimed in  claim 6  wherein said flow passage set comprises said gas flow passage having a slit-like shape and extending in one direction, and said plurality of raw material flow passages arranged in said one direction. 
     
     
         8 . An apparatus for producing nanofibers claimed in  claim 6  wherein said flow passage set comprises said gas flow passage and a plurality of said raw material flow passage arranged around said gas flow passage. 
     
     
         9 . An apparatus for producing nanofibers claimed in  claim 1  wherein a discharge pipe projecting from said raw material discharge surface is provided and said raw material flow passage is arranged inside thereof. 
     
     
         10 . An apparatus for producing nanofibers claimed in  claim 1  wherein a discharge pipe projecting from said gas discharge surface is provided and said gas flow passage is arranged inside thereof. 
     
     
         11 . An apparatus for producing nanofibers claimed in  claim 1  comprising a first portion having said raw material discharge surface, and a second portion having said gas discharge surface, wherein said first portion and said second portion are connected detachably. 
     
     
         12 . An apparatus for producing nanofibers comprising
 a raw material discharge surface on which a raw material flow passage for discharging a liquid raw material is arranged,   a gas discharge surface which is arranged downwardly from said raw material discharge surface and on which a gas flow passage for ejecting gas is arranged,   a connecting surface which is connected with said raw material discharge surface and said gas discharge surface, and is arranged with an angle β (0≤β<90°) toward said raw material discharge surface,   wherein said raw material flow passage is orthogonal to said raw material discharge surface, said gas flow passage is orthogonal to said gas discharge surface, an opening of said gas flow passage contacts with said connecting surface, and said raw material flow passage and said gas flow passage are arranged so that said liquid raw material discharged from said raw material flow passage reaches to the opening of said gas flow passage along said connecting surface.   
     
     
         13 . A nozzle head used for an apparatus for producing nanofibers comprising:
 a raw material discharge surface on which a raw material flow passage for discharging a liquid raw material is arranged, and   a gas discharge surface which is arranged with an angle α (0<α≤90°) toward said raw material discharge surface and on which a gas flow passage for ejecting gas is arranged, wherein said raw material flow passage is orthogonal to said raw material discharge surface, said gas flow passage is orthogonal to said gas discharge surface, and said raw material flow passage and said gas flow passage are arranged so that said liquid raw material discharged from said raw material flow passage meets gas ejected from said gas flow passage.   
     
     
         14 . A nozzle head used for an apparatus for producing nanofibers comprising:
 a raw material discharge surface on which a raw material flow passage for discharging a liquid raw material is arranged,   a gas discharge surface which is arranged downwardly from said raw material discharge surface, and on which a gas flow passage for ejecting gas is arranged,   a connecting surface which is connected with said raw material discharge surface and said gas discharge surface, and is arranged with an angle β (0≤β<90°) toward said raw material discharge surface,   wherein said raw material flow passage is orthogonal to said raw material discharge surface, said gas flow passage is orthogonal to said gas discharge surface, an opening of said gas flow passage contacts with said connecting surface, and said raw material flow passage and said gas flow passage are arranged so that said liquid raw material discharged from said raw material flow passage reaches to the opening of said gas flow passage along said connecting surface.