Patent ID: 8454355

Claim:
A porous-medium burning apparatus, comprising: an oxidant inlet, said oxidant inlet guiding an oxidant entered to burn a fuel; a fuel spraying device, said fuel spraying device comprising a fuel inlet, a plurality of fuel spraying tube branches and a plurality of fuel spraying holes, said fuel spraying device guiding said fuel entered from said fuel inlet and then directly sprayed through said plurality of fuel spraying holes, each of said fuel spraying tube branches having a flat end surface and said fuel spraying holes being located on said end surface; a buffer chamber, said buffer chamber being connected with said oxidant inlet, said buffer chamber having a buffering space, said buffer chamber receiving said oxidant from said oxidant inlet and spreading said oxidant into said buffering space; a gas rectifying panel, said gas rectifying panel being connected with said buffer chamber, said gas rectifying panel having a plurality of pores to rectify said oxidant, said gas rectifying panel having a rectifying space to uniformly distributing said oxidant in said rectifying space through said plurality of pores; a combustion chamber, said combustion chamber being connected with said rectifying space, said combustion chamber comprising a burning space and at least one porous medium, said at least one porous medium being located in said burning space, said at least one porous medium having pores of the same radius, said oxidant, flown from said rectifying space into said at least one porous medium, and said fuel, directly sprayed from said fuel spraying holes, being mixed in a section of said at least one porous medium close to said rectifying space to process a burning reaction in said at least one porous medium other than said section; wherein said at least one porous medium has a length of 100 millimeters (mm); and wherein said length is adjustable according to gas flow status; a tail gas outlet, said tail gas outlet being connected with said burning space to outlet a tail gas; and an ignition plug, said ignition plug being positioned on said combustion chamber to provide an ignition device, each end surface of said fuel spraying tube branches being directly adhered to an end surface of said at least one porous medium with no space left between said fuel spraying holes and said at least one porous medium and said fuel being directly entered into said at least one porous medium, wherein, when said oxidant is entered through said fuel spraying tube branches, small flow recirculation zones are obtained at each end surface of said fuel spraying tube branches to steadily burn said fuel by fully mixing said oxidant and said fuel.