Pulse detonation device for a coal burning system

Abstract

A pulse detonation coal burner includes a burner body having an inlet and an outlet, and a fuel introduction system coupled to the inlet of the burner body. The fuel introduction system is configured and disposed to introduce at least one fuel into the burner body. A pulse detonation device is operatively coupled to the burner body. The pulse detonation device is configured and disposed to introduce a pulse detonation wave into the burner body to ignite the at least one fuel.

1 . A pulse detonation coal burner system comprising:
 a burner body having an inlet and an outlet;   a fuel introduction system coupled to the inlet of the burner body, the fuel introduction system being configured and disposed to introduce at least one fuel into the burner body; and   a pulse detonation device operatively coupled to the burner body, the pulse detonation device being configured and disposed to introduce a pulse detonation wave into the burner body to ignite the at least one fuel.   
     
     
         2 . The pulse detonation coal burner system according to  claim 1 , wherein the fuel introduction system is configured to guide coal into the burner body. 
     
     
         3 . The pulse detonation coal burner system according to  claim 2 , wherein the fuel introduction system is configured to guide pulverized coal and air into the burner body. 
     
     
         4 . The pulse detonation coal burner system according to  claim 1 , wherein the fuel introduction system includes a fuel supply conduit having a first end portion that extends to a second end portion through a fuel passage, the first end portion defining a fuel inlet and the second end portion defining a fuel outlet, the fuel outlet being arranged within the burner body. 
     
     
         5 . The pulse detonation coal burner system according to  claim 4 , wherein the pulse detonation device includes a body member having first end section that extends to a second end section through an intermediate section, the first end section defining an inlet section and the second end section defining an outlet section. 
     
     
         6 . The pulse detonation coal burner system according to  claim 5 , wherein the pulse detonation device includes an outlet tube fluidly connected to the body member, the outlet tube being arranged within the fuel supply conduit. 
     
     
         7 . The pulse detonation coal burner system according to  claim 6 , further comprising: a pulse detonation fuel system fluidly connected to the inlet section of the body member, the pulse detonation fuel system including a fuel supply and an air supply. 
     
     
         8 . The pulse detonation coal burner system according to  claim 7 , wherein each of the fuel supply and air supply are operatively connected to a controller that regulates delivery of air and fuel into the body member. 
     
     
         9 . The pulse detonation coal burner system according to  claim 1 , further comprising: a plurality of spin vanes arranged radially about the fuel introduction system. 
     
     
         10 . A coal burning furnace system comprising:
 a coal burning furnace including a furnace body including a heat exchange system;   a pulse detonation coal burner system fluidly connected to the coal burning furnace, the pulse detonation coal burner system including a burner body having an inlet and an outlet, a fuel introduction system coupled to the inlet of the burner body, the fuel introduction system being configured and disposed to introduce at least one fuel into the burner body, and a pulse detonation device operatively coupled to the burner body, the pulse detonation device being configured and disposed to introduce a pulse detonation wave into the burner body to ignite the at least one fuel.   
     
     
         11 . The coal burning furnace system according to  claim 10 , wherein the fuel introduction system is configured to guide coal into the burner body. 
     
     
         12 . The coal burning furnace system according to  claim 11 , wherein the fuel introduction system is configured to guide pulverized coal and air into the burner body. 
     
     
         13 . The coal burning furnace system according to  claim 10 , wherein the fuel introduction system includes a fuel supply conduit having a first end portion that extends to a second end portion through a fuel passage, the first end portion defining a fuel inlet and the second end portion defining a fuel outlet, the fuel outlet being arranged within the burner body. 
     
     
         14 . The coal burning furnace system according to  claim 10 , wherein the pulse detonation device includes a body member having first end section that extends to a second end section through an intermediate section, the first end section defining a an inlet section and the second end section defining an outlet section. 
     
     
         15 . The coal burning furnace system according to  claim 14 , wherein the pulse detonation device includes an outlet tube fluidly connected to the body member, the outlet tube being arranged within the fuel supply conduit. 
     
     
         16 . The coal burning furnace system according to  claim 14 , further comprising: a pulse detonation fuel system fluidly connected to the inlet section of the body member, the pulse detonation fuel system including a fuel supply and an air supply. 
     
     
         17 . The coal burning furnace system according to  claim 16 , wherein each of the fuel supply and air supply are operatively connected to a controller that regulates delivery of air and fuel into the body member. 
     
     
         18 . A method of burning pulverized coal for a coal burning system, the method comprising:
 introducing an amount of coal into a burner body;   guiding an amount of air into the burner body;   mixing the amount of coal and the amount of air to form a combustible fuel mixture; and   igniting the combustible fuel mixture with a pulse detonation wave generated by a pulse detonation device to form a flame front.   
     
     
         19 . The method of  claim 18 , further comprising: inducing a swirl to the combustible fuel mixture. 
     
     
         20 . The method of  claim 19 , further comprising: directing the flame front into a coal burning furnace.