Flare stack

Abstract

A flare stack for burning a vapor having a combustion chamber having a plurality of air intakes for allowing air into the chamber, the air intakes allowing air into the chamber but reducing or blocking the flame from the view of an observer.

1 . A flare stack for burning a waste vapor comprising: 
 a. chamber having a vapor inlet, an outlet, and an elongate intermediate section; the chamber having a plurality of air intakes adapted to allow air to flow into the chamber; and    b. ignition means for igniting the vapor adapted to create a flame, wherein the flare stack is adapted to substantially visually contain the flame.    
   
   
       2 . The flare stack of  claim 1 , further comprising a pre-mix chamber associated with the vapor inlet, the pre-mix chamber having a pre-mix air inlet, the pre-mix chamber adapted to mix the vapor and air in a mixture for ignition by the ignition means.  
   
   
       3 . The flare stack of  claim 1 , further comprising a diffuser plate associated with the outlet.  
   
   
       4 . The flare stack of  claim 1 , wherein each of the plurality of air intakes are rotationally positioned at substantially 120 degrees to another of one of the plurality of air intakes.  
   
   
       5 . The flare stack of  claim 1 , wherein the plurality of air intakes comprise a tubular air intake.  
   
   
       6 . The flare stack of  claim 5 , wherein the tubular air intake comprises an elongate tubular extending between an inlet and an outlet, the inlet being substantially flush with the outer wall of the chamber and the outlet terminating in the bore of the chamber.  
   
   
       7 . The flare stack of  claim 6 , wherein the outlet comprises a substantially horizontal outlet face.  
   
   
       8 . The flare stack of  claim 1 , wherein the plurality of air intakes comprise an air intake chimney.  
   
   
       9 . The flare stack of  claim 8 , wherein the air intake chimney comprises a substantially horizontal tubular extending between a first end through the chamber to a second end, and a substantially vertical tubular extending from the wall of the horizontal tubular and extending substantially vertical up a portion of the chamber.  
   
   
       10 . The flare stack of  claim 9 , further comprising a wind guard adapted to block direct access to the first end and the second end.  
   
   
       11 . The flare stack of  claim 1 , wherein the chamber is an elongate tubular.  
   
   
       12 . The flare stack of  claim 1 , wherein the chamber is substantially vertical.  
   
   
       13 . The flare stack of  claim 1 , wherein the chamber is constructed of stainless steel.  
   
   
       14 . The flare stack of  claim 1 , wherein the chamber further comprises an inner coating, the inner coating covering at least a portion of an inner wall of the chamber, the coating adapted to resist heat generated by the flame.  
   
   
       15 . The flare stack of  claim 1 , wherein the flare stack is adapted to burn vapor at a rate of between 150,000 to 500,000 cubic feet per day.  
   
   
       16 . The flare stack of  claim 1 , wherein the vapor comprises substantially methane.  
   
   
       17 . The flare stack of  claim 1 , wherein the chamber is adapted to burn the vapor wherein the temperature of the chamber is substantially 1200 degrees Fahrenheit.  
   
   
       18 . A method for burning a vapor comprising the steps of: 
 a. allowing air to mix with the vapor to form a mixture;    b. igniting the mixture to create a flame;    c. providing an elongate substantially vertical tubular chamber for receiving the flame; and    d. allowing additional air into the chamber at a plurality of points proximate the flame, wherein the flame is substantially always substantially concealed from view.