Fuel gas manufacturing apparatus
View Patent ↗A home fuel gas refining system has a modifier for modifying a hydrogen-containing fuel to produce a modified gas. The modifier includes a hydrogen-containing fuel supply mechanism for supplying the hydrogen-containing fuel and a modifying air supply mechanism for supplying modifying air. The hydrogen-containing fuel delivered from the hydrogen-containing fuel supply mechanism and the modifying air delivered from the modifying air supply mechanism are mixed with each other by a modification fuel ejector, and then delivered to a reactor.
1. An apparatus for manufacturing a fuel gas, comprising:
a modifier for modifying a hydrogen-containing fuel to produce a modified gas;
said modifier comprising:
a modifying unit for modifying the hydrogen-containing fuel;
a hydrogen-containing fuel supply mechanism for supplying said hydrogen-containing fuel, wherein said hydrogen-containing fuel supply mechanism has an injector, separate and distinct from a valve;
an ejector for drawing the hydrogen-containing fuel from the hydrogen-containing fuel supply mechanism; and
modifying air supply means for supplying modifying air and for setting the pressure of the modifying air delivered to the ejector such that the hydrogen-containing fuel is kept at a required flow rate independent of pressure fluctuations downstream of the ejector,
wherein the ejector mixes said hydrogen-containing fuel drawn from said hydrogen-containing fuel supply mechanism and said modifying air delivered from said modifying air supply mechanism into a mixture, and supplies the mixture to said modifying unit,
wherein the ejector draws the hydrogen-containing fuel from the hydrogen-containing fuel supply mechanism based upon a pressure at which the modifying air is delivered from the modifying air supply mechanism, and
wherein the injector is disposed upstream of the ejector.
2. An apparatus according to claim 1 , wherein said ejector has:
a main passageway for ejecting the modifying air from a nozzle; and
an auxiliary passageway for drawing said hydrogen-containing fuel with the modifying air ejected by said main passageway.
3. An apparatus according to claim 2 , wherein said modifier has a valve connected to said main passageway for regulating the pressure of said modifying air supplied to said ejector.
4. An apparatus according to claim 1 , wherein said modifier has a pressure meter disposed upstream of said ejector for detecting the pressure of said modifying air.
5. An apparatus according to claim 1 , wherein said hydrogen-containing fuel supply mechanism has an orifice disposed upstream of said ejector.
6. An apparatus according to claim 1 , wherein said hydrogen-containing fuel supply mechanism has an injector and an orifice which are disposed parallel to each other upstream of said ejector.