Integrated reforming hydrogen production system and reforming hydrogen production method

The invention relates to the technical field of reforming hydrogen production, in particular to an integrated reforming hydrogen production system which comprises a steam generator, a purification device, a gas mixing valve, a first induced draft fan, a reforming system, a heat exchanger, a water gas shift system and a pressure swing adsorption device. The gas outlet of the steam generator is also communicated with the gas inlet of the water-gas shift system; a heat recovery outlet of the heat exchanger is respectively communicated to the steam generator and the reforming system; the reforming system comprises a plurality of reforming reactors which are connected in parallel; the water gas conversion system comprises a plurality of water gas conversion reactors which are connected in parallel; the reforming reactor and the water gas shift reactor are cylindrical reactors; and the reforming reactors and the water-gas shift reactors are coaxially arranged in a one-to-one correspondence manner. In addition, the