公开(公告)号：US20130319303A1

公开(公告)日：2013-12-05

申请号：US13962491

申请日：2013-08-08

Applicant: ALSTOM Technology LTd

Inventor： Gerhard HEINZ ,  Hellmuth BRUEGGEMANN ,  Friedemann KENDEL ,  Hardy RAUCHFUSS ,  Thomas WILD ,  Patrick MOENCKERT ,  Gisbert Wolfgang KAEFER ,  Staffan JÖNSSON ,  Michal Tadeusz BIALKOWSKI ,  Turgay PEKDEMIR

IPC: F23L7/00 ,  F25J3/06 ,  F23D1/00 ,  F23K1/00

CPC classification number: F23L7/007 ,  F23D1/005 ,  F23K1/00 ,  F23K3/02 ,  F23K2201/103 ,  F25J3/04533 ,  F25J3/04563 ,  F25J3/04581 ,  F25J3/04618 ,  F25J3/0605 ,  F25J2230/06 ,  F25J2240/20 ,  F25J2240/90 ,  F25J2260/42 ,  Y02E20/344

Abstract: The present disclosure relates to a method of milling a fuel for an oxy-fuel combustion burner, the method includes: separating air into a hot nitrogen gas stream, having a temperature of at least 150° C. and a purity of at least 98 mol-% nitrogen, and an oxygen gas stream; leading at least a part of the nitrogen gas stream to a fuel mill; milling the fuel by means of the fuel mill in a nitrogen rich atmosphere formed by means of the nitrogen gas stream; leading the at least a part of the nitrogen gas stream away from the milled fuel; leading the oxygen gas stream to the oxy-fuel combustion burner; conveying the milled fuel to the oxy-fuel combustion burner; and burning the fuel, by means of the oxy-fuel combustion burner, in an oxygen rich atmosphere formed by means of the oxygen gas stream. The present disclosure further relates to a system for milling a fuel for an oxy-fuel combustion burner as well as to a power plant comprising such a system.

Abstract translation: 本公开涉及一种研磨氧燃料燃烧器燃料的方法，该方法包括：将空气分离成热氮气流，其温度至少为150℃，纯度至少为98mol - 氮气和氧气流; 将至少一部分氮气流引导到燃料磨; 通过燃料磨在通过氮气流形成的富氮气氛中研磨燃料; 引导至少一部分氮气流远离研磨的燃料; 将氧气流引导到氧 - 燃料燃烧器; 将磨碎的燃料输送到氧燃料燃烧器; 并且通过氧 - 燃料燃烧器在通过氧气流形成的富氧气氛中燃烧燃料。 本公开还涉及用于研磨用于氧 - 燃料燃烧燃烧器的燃料的系统以及包括这种系统的动力装置。

公开(公告)号：US20160153657A1

公开(公告)日：2016-06-02

申请号：US14934221

申请日：2015-11-06

Applicant: ALSTOM Technology Ltd

Inventor： Thomas HILBER ,  Thomas WILD ,  Dragisa RISTIC ,  Noel FRANCON

IPC: F23D99/00 ,  F23D23/00 ,  F23D14/04

CPC classification number: F23D91/04 ,  F23C7/02 ,  F23C2201/101 ,  F23C2900/06041 ,  F23D1/00 ,  F23D14/04 ,  F23D23/00 ,  F23D2201/20

Abstract: The present disclosure relates to a system and a method for combustion of solid fuels. The combustion system includes burners which supply a mixed flow of fuel and air through a fuel nozzle to the combustion chamber for example of a boiler. The mixed flow of fuel and primary air is supplied to the burner through a duct from a pulverizer where the fuel is grinded to the required finesse. The duct further bends in such a way that one portion is vertical with respect parallel to axis of the boiler 1 A-A is vertical duct and other portion is horizontal duct which is parallel to axis B-B of the fuel nozzle.

Abstract translation: 本公开涉及固体燃料的燃烧系统和方法。 燃烧系统包括燃烧器，燃烧器通过燃料喷嘴将燃料和空气的混合流提供给例如锅炉的燃烧室。 燃料和一次空气的混合流体通过管道从燃料被粉碎到所需的精细度的粉碎机供给燃烧器。 管道进一步弯曲，使得一部分相对于锅炉的轴线垂直.A-A是垂直管道，而其它部分是与燃料喷嘴的轴线B-B平行的水平管道。

公开(公告)号：US20140290544A1

公开(公告)日：2014-10-02

申请号：US14306627

申请日：2014-06-17

Applicant: ALSTOM Technology Ltd

Inventor： Thomas WILD ,  Hellmuth BRUEGGEMANN

IPC: F23D1/00 ,  H05H1/26 ,  F23Q7/02

CPC classification number: F23Q7/02 ,  F23C2900/99005 ,  F23D1/00 ,  F23D2207/00

Abstract: The invention relates to a pulverized coal burner for a steam generator. The pulverized coal burner has a fuel duct, through which pulverized coal is conveyed with the aid of a carrier gas. The pulverized coal emerges together with the carrier gas at a fuel duct outlet. The pulverized coal burner furthermore has at least one core duct and at least one secondary duct. Air or oxygen flows through the core duct and the secondary duct, emerging at the core duct outlet and at the secondary duct outlet. The core duct outlet, the secondary duct outlet and the fuel duct outlet together form a burner outlet. The pulverized coal burner has at least one plasma ignition torch embodied integrally with the pulverized coal burner. The outlet of the at least one plasma ignition torch is arranged in the plane of the burner outlet or offset downstream in relation to the direction of flow of the pulverized coal. The plasma flame produced by the plasma ignition torch is thus located outside the fuel duct.

Abstract translation: 本发明涉及一种用于蒸汽发生器的粉煤燃烧器。 粉煤燃烧器具有燃料管道，煤粉借助载气输送。 粉煤与载气一起在燃料管出口处出现。 粉煤燃烧器还具有至少一个芯管和至少一个次管。 空气或氧气流过核心管道和次级管道​​，出现在核心管道出口处和次级管道​​出口处。 核心管道出口，次级管道出口和燃料管道出口一起形成燃烧器出口。 粉煤燃烧器具有至少一个与粉煤燃烧器整体实现的等离子体点火炬。 至少一个等离子体点火炬的出口被布置在燃烧器出口的平面中或相对于粉煤的流动方向偏移到下游。 因此，等离子体点火炬产生的等离子体火焰位于燃料管道的外部。