Energy-saving fuel gas system

Abstract

The invention relates to an energy-saving fuel gas system, which provides a two coexisted mechanisms comprising a premixing mode of a premixing module and a diffuse-blend mode of a diffuse-blend module. A suitable fuel, which is produced by the mixing reaction of fuel molecule and oxidative molecule to be completed by a helical or scroll type premixing module, is guided to flow into the diffuse-blend module via a fairing hood for a secondary scroll air-mixing treatment and then is performed with a combustion chemical reaction by the flames on the fire board. The combustion reaction temperature of the suitable fuel is effectively increased by the heat accumulation effect of the fire board to heat up and expand the subsequent suitable fuel, thereby thinning flammable molecule to have a maximum air-fuel ratio and breaking down minute quantity of water molecule in air into supplemental fuel and combustion assistant to attain an optimum energy-saving efficiency.

What is claimed is: 
     
         1 . An energy-saving fuel gas system, comprising:
 a premixing module, comprising a pipe body providing a premixing space therein, at least one first combustion-supporting gas inlet provided for allowing a combustion-supporting gas to flow into the pipe body, and 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   a diffuse-blend module located at a second side of the premixing space of the premixing module relative to the fuel gas injection unit of the premixing module, comprising 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.   
     
     
         2 . The energy-saving fuel gas system as claimed in  claim 1 , wherein the fuel gas injection unit of the premixing module which is disposed on one end of the pipe body of the premixing module near to a pipe wall thereof is provided with a fuel gas injection port utilized to obliquely inject the fuel gas so that the fuel gas injected into the premixing space of the pipe body travels in the helical path, and the at least one first combustion-supporting gas inlet of the premixing module disposed on the pipe wall of the pipe body of the premixing module is located below the fuel gas injection port of the fuel gas injection unit of the premixing module. 
     
     
         3 . The energy-saving fuel gas system as claimed in  claim 2 , wherein an included angle ranging from 45 to 85 degrees can be formed between the fuel gas injection port of the fuel gas injection unit of the premixing module and a horizontal plane. 
     
     
         4 . The energy-saving fuel gas system as claimed in  claim 1 , wherein the premixing module further comprises a disk body which is disposed on one end of the pipe body and provided with the at least one first combustion-supporting gas inlet, the fuel gas injection unit is disposed on the disk body and is provided with a fuel gas injection port, and the at least one first combustion-supporting gas inlet of the disk body is located around the fuel gas injection port of the fuel gas injection unit. 
     
     
         5 . The energy-saving fuel gas system as claimed in  claim 4 , wherein the fuel gas injection unit of the premixing module is provided with a guide slot and an arcuate passage connected to a bottom of the guide slot provided for allowing the fuel gas to flow into the guide slot, and the fuel gas injection port is provided on a top of the guide slot of the fuel gas injection unit so that the fuel gas injected into the premixing space of the pipe body travels in the scroll path. 
     
     
         6 . The energy-saving fuel gas system as claimed in  claim 5 , wherein the pipe body of the premixing module can be a venturi tube, and a bunch part is provided on one end of the pipe body of the premixing module which is near to the diffuse-blend space of the diffuse-blend module. 
     
     
         7 . The energy-saving fuel gas system as claimed in  claim 5 , wherein the fuel gas injection port of the fuel gas injection unit is further connectively disposed with a flow control mechanism. 
     
     
         8 . The energy-saving fuel gas system as claimed in  claim 1  further comprising an outer housing including a base seat opened with at least one second combustion-supporting gas inlet, in which the premixing module arranged in the outer housing is connected to the base seat of the outer housing, and the upper seat body of the diffuse-blend module is connected to the outer housing at one side thereof where is opposite to that of the base seat of the outer housing to be located. 
     
     
         9 . The energy-saving fuel gas system as claimed in  claim 1  further comprising a fairing hood disposed between the premixing space of the premixing module and the diffuse-blend space of the diffuse-blend module, in which the fairing hood comprises an arcuate recessed flange concave to the diffuse-blend space of the diffuse-blend module and a fairing hole provided for allowing the fuel gas and the combustion-supporting gas to be mixed in the premixing space of the premixing module to flow into the diffuse-blend space of the diffuse-blend module. 
     
     
         10 . The energy-saving fuel gas system as claimed in  claim 1 , wherein the fire board can be further made of ceramic material. 
     
     
         11 . The energy-saving fuel gas system as claimed in  claim 7 , wherein the flow control mechanism comprises a needle body capable of being operated relative to the fuel gas injection port of the fuel gas injection unit and a guide bar being directly or indirectly connected to the needle body, so that the needle body driven by the guide bar is acted to open or close the fuel gas injection port of the fuel gas injection unit or to regulate the fuel gas injection port of the fuel gas injection unit for controlling the flow rate of injected fuel gas. 
     
     
         12 . The energy-saving fuel gas system as claimed in  claim 11 , wherein the flow control mechanism further comprises a linkage which is provided with a fixed point and two ends respectively connected to the guide bar and a finger-dialing member, so that the linkage is rotated by taking the fixed point as an axis. 
     
     
         13 . The energy-saving fuel gas system as claimed in  claim 12 , wherein the guide bar is provided with an elongated hole at a location where is connected to the linkage, or the linkage is provided with an elongated hole at a location where is connected to the guide bar. 
     
     
         14 . The energy-saving fuel gas system as claimed in  claim 5  further comprising a preheating pipeline which is connected to the fuel gas injection unit for increasing the temperature of the fuel gas when the fuel gas enters the arcuate passage of the fuel gas injection unit of the premixing module. 
     
     
         15 . The energy-saving fuel gas system as claimed in  claim 14 , wherein the preheating pipeline can be disposed in the diffuse-blend space of the diffuse-blend module. 
     
     
         16 . The energy-saving fuel gas system as claimed in  claim 5  further comprising an outer housing including a base seat opened with at least one second combustion-supporting gas inlet, in which the premixing module arranged in the outer housing is connected to the base seat of the outer housing, and the upper seat body of the diffuse-blend module is connected to the outer housing at one side thereof where is opposite to that of the base seat of the outer housing to be located. 
     
     
         17 . The energy-saving fuel gas system as claimed in  claim 5  further comprising a fairing hood disposed between the premixing space of the premixing module and the diffuse-blend space of the diffuse-blend module, in which the fairing hood comprises an arcuate recessed flange concave to the diffuse-blend space of the diffuse-blend module and a fairing hole provided for allowing the fuel gas and the combustion-supporting gas to be mixed in the premixing space of the premixing module to flow into the diffuse-blend space of the diffuse-blend module. 
     
     
         18 . The energy-saving fuel gas system as claimed in  claim 5 , wherein the fire board can be further made of ceramic material. 
     
     
         19 . The energy-saving fuel gas system as claimed in  claim 2  further comprising an outer housing including a base seat opened with at least one second combustion-supporting gas inlet, in which the premixing module arranged in the outer housing is connected to the base seat of the outer housing, and the upper seat body of the diffuse-blend module is connected to the outer housing at one side thereof where is opposite to that of the base seat of the outer housing to be located. 
     
     
         20 . The energy-saving fuel gas system as claimed in  claim 2  further comprising a fairing hood disposed between the premixing space of the premixing module and the diffuse-blend space of the diffuse-blend module, in which the fairing hood comprises an arcuate recessed flange concave to the diffuse-blend space of the diffuse-blend module and a fairing hole provided for allowing the fuel gas and the combustion-supporting gas to be mixed in the premixing space of the premixing module to flow into the diffuse-blend space of the diffuse-blend module.