The MRH-R series methanol–water reforming hydrogen-rich system uses methanol and demineralized water as feedstock. Based on methanol steam reforming, conversion is completed in a catalytic reactor to produce hydrogen-rich combustion gas, which can be supplied directly to combustion systems without deep PSA purification. A single unit covers 30-1,000 Nm³/h of product gas and is mainly used for hydrogen blending or partial substitution of natural gas and LPG in industrial boilers and various industrial furnaces. Hydrogen-rich blending improves combustion completeness, suppresses NOx formation, and supports project carbon reduction.