| 摘要 |
A fuel gas system with an outer housing, a premixing module positioned at a lower portion of the outer housing. The premixing module has a pipe body providing a premixing space therein. The system has a first combustion supporting gas inlet provided for allowing a combustion supporting gas to flow into the pipe body. The system has a fuel gas injection unit disposed on one end of the pipe body and located at a first side of the premixing space of the pipe body so as to supply and inject a fuel gas into the premixing space of the pipe body and to cause the fuel gas for traveling in the premixing space of the pipe body in a helical or scroll path, and to exit from the premixing space into the mixing space in a helical or scroll path. The system has a diffuse-blend module extending above an upper portion of the outer housing and spaced apart from the premixing module. The diffuse-blend module has an upper seat body which is provided with a diffuse-blend space and a fire board which is disposed in the upper seat body, located above the diffuse blend space and opened with a plurality of flame holes. The outer housing has a base seat opened with at least one second combustion-supporting gas inlet, to provide further mixing of the combustion-supporting gas with the fuel gas between the premixing module and the diffuse-blend module. |
