초록 ▼

The present invention provides a steam generator which comprises rocket-type multielement injector head and a small diameter, highly elongated, cylindrical combustion chamber whose walls are formed from a plurality of longitudinally adjoined water tubes. The multielement injector head injects an arr

The present invention provides a steam generator which comprises rocket-type multielement injector head and a small diameter, highly elongated, cylindrical combustion chamber whose walls are formed from a plurality of longitudinally adjoined water tubes. The multielement injector head injects an array of associating streams of fuel and oxidizer into the combustion chamber under sufficient pressure to maintain a combustion pressure in the range of 25-150 psia whereupon the narrowness of the combustion chamber serves to constrict the resultant combustion gases to thereby promote radiant and convective heat transfer from the flame of combustion through the walls of the combustion chamber into the water passing through the water tubes. By such arrangement the production of nitrogen oxides in the combustion chamber is avoided.

대표청구항 ▼

A steam generator comprising: a highly elongated, cylindrical combustion chamber having thermally conductive walls comprising a plurality of longitudinally adjoined tubes, said combustion chamber having an input end, an output end and interior surfaces; an injector assembly sealingly affixed to said

A steam generator comprising: a highly elongated, cylindrical combustion chamber having thermally conductive walls comprising a plurality of longitudinally adjoined tubes, said combustion chamber having an input end, an output end and interior surfaces; an injector assembly sealingly affixed to said input end comprising a plurality of individual injector elements arrayed upon a peripheral region and an inner region of an injector plate for injecting under pressure associating streams of fuel and oxidizer into said input end, those injector elements at the peripheral region of said injector plate initiating a more rapid burning rate in the respective association streams than those injector elements at the inner region of said injector plate, so that said injector initiates a combustion process which progresses in discrete stages along the length of said combustion chamber to thereby graduate the heat released from said combustion process; means for supplying fuel and oxidizer under pressure to said injector assembly; and means for supplying a flow of water through said plurality of tubes from said input end to said output end for extracting heat from said combustion chamber at a rate which matches the heat generation at any given length segment of said combustion chamber so that said combustion process does not attain a temperature where substantial quantities of nitrogen oxides and produced.