公开(公告)号：US10012382B2

公开(公告)日：2018-07-03

申请号：US14835793

申请日：2015-08-26

Applicant: ALSTOM Technology Ltd

Inventor： Thomas Hilber ,  Bernd Greiner ,  Hans-Peter Schommer ,  Noel Francon ,  Helmut Jaiser

IPC: F23K3/02 ,  F23C6/04 ,  F23C7/00 ,  F23C5/08

CPC classification number: F23K3/02 ,  F23C5/08 ,  F23C6/047 ,  F23C7/006 ,  F23C2201/101 ,  F23K2203/006 ,  F23K2203/201

Abstract: A combustion system having a furnace defining a combustion chamber includes a first burner disposed at an upper elevation of the combustion chamber and a second burner and a third burner disposed at a lower elevation of the combustion chamber. A first duct extends vertically to convey therein a fuel flow of gas and pulverized fuel. A second duct branches from the first duct to the first burner to convey a first portion of the fuel flow, which is fuel lean, to define a fuel lean flow, wherein a second portion of the fuel flow passes through the first duct as a fuel rich flow. A third duct includes one end disposed longitudinally within the first duct. An impeller is disposed within the first duct upstream of the branching of the second duct and downstream of the one end of the third duct disposed in the first duct. The impeller includes a plurality of blades to direct outwardly the pulverized fuel of the fuel rich flow to provide a fuel reduced content flow passing through the second duct to the second burner, and a fuel concentrated content flow passing through first duct to the first burner.

公开(公告)号：US20160003473A1

公开(公告)日：2016-01-07

申请号：US14789093

申请日：2015-07-01

Applicant: ALSTOM Technology Ltd

Inventor： Thomas Hilber ,  Klaus SCHNIEDER

IPC: F23J15/04

Abstract: A boiler includes an enclosure having at least a supply for fuel and oxidizer and at least a supply for a SNCR reagent. The supply for the SNCR reagent includes at least a regulation valve for the SNCR reagent. The boiler includes at least a sensor for measuring information indicative of the NOx concentration over at least one given enclosure cross section. The boiler includes a controller connected to the at least a sensor and to the at least a regulation valve. The controller regulates the SNCR reagent supply according to the measured information indicative of the NOx concentration.

Abstract translation: 锅炉包括至少具有用于燃料和氧化剂的供应物以及至少SNCR试剂供应的外壳。 SNCR试剂的供应至少包括用于SNCR试剂的调节阀。 锅炉至少包括一个传感器，用于测量指示至少一个给定外壳横截面上的NOx浓度的信息。 锅炉包括连接到至少一个传感器和至少一个调节阀的控制器。 控制器根据指示NOx浓度的测量信息来调节SNCR试剂供应。