公开(公告)号：JPH1172231A

公开(公告)日：1999-03-16

申请号：JP12754398

申请日：1998-05-11

Applicant: ABB RESEARCH LTD

Inventor： DOEBBELING KLAUS DR ,  REH LOTHAR ,  WANG YUNHOGN

IPC: F02C3/20 ,  F02C3/30 ,  F02C7/224 ,  F23R3/28 ,  F23R3/30

Abstract: PROBLEM TO BE SOLVED: To decrease the value of NOx in case of using liquid fuel, by vaporizing the liquid fuel in a vaporizing reactor in several steps. SOLUTION: Fuel oil 38 passes through a distribution hole 33, and enters ring gaps 30, which are continuously narrowed, and which are filled with overheated steam 21, roughly vertically. Thereby, heat is transferred from the steam 21 to the fuel oil 38 remarkably, and consequently the part which already has large amount of fuel oil 38 is transformed to the gas phase. Moreover, the concerned medium is so strong that it is mixed as a mixture of fuel steam and liquid fuel 61. After that, the mixture of fuel steam and liquid fuel 61 is guided to a vaporizing passage 45 through a guide circular cone part 44. The remaining fuel oil 38 is vaporized in the vaporizing passage 45 on the basis of the indirect heat exchange with the waste gas 51 which flows through the ring passage 47 of a gasturbine 3 on the principle of convection.