Reforming device

A reforming device for reforming fuel gas into reformed gas containing hydrogen by using heat generated by combusting the fuel gas, the reforming device comprising:

• an outer cylinder;
• an inner cylinder disposed radially inward of the outer cylinder;
• a combustible gas introduction part introducing the fuel gas and oxidized gas to the outer cylinder;
• an igniter configured to ignite the fuel gas introduced to the outer cylinder;
• a catalytic part heated by the heat of combustion gas generated by ignition of the fuel gas by the igniter so as to combust the fuel gas and reform the fuel gas;
• and
• a gas supply part through which the fuel gas and the oxidized gas are supplied to the catalytic part, wherein
• the inner cylinder has a front end that is located between a front end of the outer cylinder and a rear end of the outer cylinder,
• the front end and a rear end of the inner cylinder are opened,
• a tubular combustible gas passage through which the fuel gas and the oxidized gas introduced by the combustible gas introduction part flow toward the front end of the outer cylinder is formed between the outer cylinder and the inner cylinder,
• the front end of the outer cylinder is provided with a front closure wall that closes a space in the outer cylinder,
• the rear end of the outer cylinder is provided with a rear closure wall that closes the tubular combustible gas passage,
• the igniter is fixed to the front closure wall, and
• the combustible gas introduction part is located near the rear end of the outer cylinder and introduces the fuel gas and the oxidized gas to the tubular combustible gas passage so that the fuel gas and the oxidized gas flow in a circumferential direction of the inner cylinder.