公开(公告)号：JPH09327641A

公开(公告)日：1997-12-22

申请号：JP4890897

申请日：1997-03-04

Applicant: ABB RESEARCH LTD

Inventor： KURAUSU DETSUBERINGU ,  PEETAA YANZOON ,  HANSU PEETAA KUNEPUFUERU ,  KURISUTEIAN SHIYUTAINBATSUHA

IPC: B05B1/34 ,  B05B7/04 ,  B05B7/10 ,  F23C7/00 ,  F23D11/26 ,  F23D11/38

Abstract: PROBLEM TO BE SOLVED: To enable combustion accompanied by only a small amount of poisonous substances over a whole load range of a gas turbine by opening at least one other supply path for a part of a liquid to be atomized to a turbulent flow chamber and supplying the part of the liquid in a twisted state under a pressurized condition through the supply path. SOLUTION: A second tube 35 having a diameter smaller than that of a first tube 31 is inserted in the first tube 31 and the second tube 35 reaches a cone-shaped cover 32 to be brought into contact with the cover 32. An end portion of the second tube 35 has four slots 38 set in a tangential direction and the four slots are in communication with a chamber 39 functioning as a whirling chamber, wherein a whirling flow is generated in a liquid 37 flowing into the chamber through an annular chamber 36 to be atomized. The chamber 39 is defined by a filling material 40 fixed in an interior of the second tube 39. Four paths 41 for supplying the liquid 37 to be atomized are arranged in the filling material 40, and the supply paths allow the liquid 37 to flow into the chamber 39 in a state of being not twisted and the chamber 39 functions as a turbulent flow chamber.

公开(公告)号：JPH08166108A

公开(公告)日：1996-06-25

申请号：JP16125195

申请日：1995-06-27

Applicant: ABB RESEARCH LTD

Inventor： PEETAA YANZOON ,  TEINOOMARUTEIN MARURINGU ,  TOOMASU ZATSUTERUMAIAA

IPC: F23C99/00 ,  F23C6/04 ,  F23C9/00 ,  F23D17/00 ,  F23C11/00

Abstract: PURPOSE: To reduce the emission of harmful substances related especially to the emission of NOx even in the case of employing liquid fuel and gaseous fuel or further even in the case of mixing operation of both fuels. CONSTITUTION: Mixture 6 consisting of air 3 and re-cycled flue gas 4 is conducted to flow into a burner 100 as combustion air 115 for a first combustion stage 1. Then, the heat amount of high-temperature gas from the first combustion stage 1 is regulated before sending the same into a second combustion stage 2, and mixture 14 consisting of the fuel 15 and the re-cycled flue gas 4 is introduced into the high-temperature gas to generate combustion in the second combustion stage 2 by self-ignition.