Heavy oil catalytic feed nozzle comprises the first mixing chamber, the second mixing chamber, the nozzle cavity and the spray head. The first mixing chamber and the second mixing chamber are fixedly...

Heavy oil catalytic feed nozzle comprises the first mixing chamber, the second mixing chamber, the nozzle cavity and the spray head. The first mixing chamber and the second mixing chamber are fixedly arranged in the nozzle cavity, the first mixing chamber is arranged at the entrance end of the nozzle cavity, the spray head is arranged at the exit end of the nozzle cavity; it also comprises the atomizing structure, which is fixedly arranged in the nozzle cavity; the atomizing structure comprises a support and a spray body which both are fixedly connected together; the shape of the atomizing structure forms Karman Vortex Street phenomenon around. 1. Heavy oil catalytic feed nozzle makes full use of mixing the material pressure and flow rate with the steam, and two mixings are conducted in the nozzle cavity to achieve the effective mixture of oil and air. 2. The heavy oil catalytic atomizing nozzle can achieve the atomizing of oil and air sufficiently with the atomizing structure to form a cone controllable solid spray field, improving the atomizing quality. 3. The heavy oil catalytic atomizing nozzle has the advantages of simple structure, convenient operation, good operation elasticity and high reliability.

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