Anti-coking and anti-corrosion structure for nozzle of continuous supercritical water gasification device

The invention discloses an anti-coking and anti-corrosion structure for a nozzle of a continuous supercritical water gasification device. The anti-coking and anti-corrosion structure comprises a cooling sleeve, a supercritical water gasification hydrogen production reactor, a high-pressure deionized water channel and a high-pressure to-be-reacted material channel, the cooling sleeve penetrates through the outer wall face of the supercritical water gasification hydrogen production reactor to be inserted into the supercritical water gasification hydrogen production reactor, a high-pressure deionized water inlet is formed in one end of the high-pressure deionized water channel, and a high-pressure to-be-reacted material inlet is formed in one end of the high-pressure to-be-reacted material channel. The other end of the high-pressure to-be-reacted material channel penetrates through the cooling sleeve in the axial direction, is inserted into the supercritical water gasification hydrogen production reactor and the