Oil gasification burner for ash-free liquid fuel

Abstract

An oil gasification burner for liquid fuel is proposed which comprises, on a centrally arranged pilot burner part, a number of supply elements arranged outside the annular channel concentrically to the burner axis with pressure atomizer nozzles for introduction of liquid fuel. The pressure atomizer nozzles are embodied such that a fine atomization of the liquid fuel occurs before it comes into contact with the rotated oxidation means. Different liquid fuels can be supplied via the individual supply elements. This enables the nozzle parameters to be adapted to the particular conditions (pressure difference, fineness of droplets, spray angle etc.) of the liquid fuel through a choice of replaceable nozzle.

1 .- 8 . (canceled) 
   
   
       9 . An oil gasification burner for a liquid fuel, comprising:
 a pilot burner centrally arranged along an axis of the burner;   a concentric annular channel that supplies an oxidant; and   a plurality of supply elements arranged outside the annular channel concentric to the burner axis that introduce liquid fuel, wherein the individual supply elements
 are arranged straight in the burner, 
 are aligned essentially in parallel to the burner axis, 
 have a pressure atomizer nozzle arranged on the individual supply elements on a side facing towards the mouth of the burner, and 
 the individual supply elements end at the mouth of the burner next to an outlet of the concentric annular channel oxidant supply. 
   
   
   
       10 . The oil gasification burner as claimed in  claim 9 , wherein a pressure atomizer nozzle is attached via a screw connection to the supply element. 
   
   
       11 . The oil gasification burner as claimed in  claim 10 , wherein the pressure atomizer nozzle atomizes the liquid fuel before it comes into contact with the oxidant. 
   
   
       12 . The oil gasification burner as claimed in  claim 11 , wherein the annular channel narrows from the burner entry to the burner mouth. 
   
   
       13 . The oil gasification burner as claimed in  claim 12 , wherein the annular channel has swirler devices that impart a rotational movement to the flow of oxidant. 
   
   
       14 . The oil gasification burner as claimed in  claim 13 , wherein different liquid fuels are supplied via the individual supply elements. 
   
   
       15 . A method for operating an oil gasification burner for liquid fuel, comprising:
 providing a centrally arranged pilot burner along an axis of the burner;   arranging concentrically an annular channel that supplies an oxidant;   arranging a plurality of supply elements outside the annular channel concentric to the burner axis that introduce liquid fuel, wherein the individual supply elements
 are arranged straight in the burner, 
 are aligned essentially in parallel to the burner axis, 
 have a pressure atomizer nozzle arranged on the individual supply elements on a side facing towards the mouth of the burner, and 
 the individual supply elements end at the mouth of the burner next to an outlet of the concentric annular channel oxidant supply; and 
   supplying different liquid fuels to the individual supply elements.   
   
   
       16 . The method as claimed in  claim 15 , wherein a pressure atomizer nozzle is attached via a screw connection to the supply element. 
   
   
       17 . The method as claimed in  claim 16 , wherein the pressure atomizer nozzle atomizes the liquid fuel before it comes into contact with the oxidant. 
   
   
       18 . The method as claimed in  claim 17 , wherein the annular channel narrows from the burner entry to the burner mouth. 
   
   
       19 . The method as claimed in  claim 18 , wherein the annular channel has swirler devices that impart a rotational movement to the flow of oxidant. 
   
   
       20 . A method for commissioning an oil gasification burner for liquid fuel, comprising:
 providing a centrally arranged pilot burner along an axis of the burner;   arranging concentrically an annular channel that supplies an oxidant;   arranging a plurality of supply elements outside the annular channel concentric to the burner axis that introduce liquid fuel, wherein the individual supply elements
 are arranged straight in the burner, 
 are aligned essentially in parallel to the burner axis, 
 have a pressure atomizer nozzle arranged on the individual supply elements on a side facing towards the mouth of the burner, and 
 the individual supply elements end at the mouth of the burner next to an outlet of the concentric annular channel oxidant supply; 
   supplying different liquid fuels to the individual supply elements;   igniting the centrally arranged pilot burner in a reducing reactor atmosphere and at slightly increased system pressure; and   increasing the reaction space pressure to the operating pressure required for ignition of the oil burner as the output of the pilot burner is increased.   
   
   
       21 . The method as claimed in  claim 20 , wherein a pressure atomizer nozzle is attached via a screw connection to the supply element. 
   
   
       22 . The method as claimed in  claim 21 , wherein the pressure atomizer nozzle atomizes the liquid fuel before it comes into contact with the oxidant. 
   
   
       23 . The method as claimed in  claim 22 , wherein the annular channel narrows from the burner entry to the burner mouth. 
   
   
       24 . The method as claimed in  claim 23 , wherein the annular channel has swirler devices that impart a rotational movement to the flow of oxidant.