公开(公告)号：US09939153B2

公开(公告)日：2018-04-10

申请号：US14295018

申请日：2014-06-03

Applicant: Washington University

Inventor： Richard L. Axelbaum ,  Benjamin M. Kumfer ,  Fei Xia ,  Akshay Gopan ,  Bhupesh Dhungel

IPC: F23C6/00 ,  F23L7/00 ,  F23J15/02 ,  F22B31/04 ,  F22B33/18 ,  F22B1/22 ,  F22B33/00 ,  F22B33/12 ,  F23C7/00

CPC classification number: F23L7/007 ,  F22B1/22 ,  F22B31/04 ,  F22B33/00 ,  F22B33/12 ,  F22B33/18 ,  F23C6/00 ,  F23C7/00 ,  F23J15/02 ,  F23J2215/50 ,  F23J2219/70 ,  Y02E20/344

Abstract: A boiler system having a series of boilers. Each boiler includes a shell having an upstream end, a downstream end, and a hollow interior. The boilers also have an oxidizer inlet entering the hollow interior adjacent the upstream end of the shell and a fuel nozzle positioned adjacent the upstream end of the shell for introducing fuel into the hollow interior of the shell. Each boiler includes a flue duct connected to the shell adjacent the downstream end for transporting flue gas from the hollow interior. Oxygen is delivered to the oxidizer inlet of the first boiler in the series. Flue gas from the immediately preceding boiler in the series is delivered through the oxidizer inlet of each boiler subsequent to the first boiler in the series.

公开(公告)号：US10731847B2

公开(公告)日：2020-08-04

申请号：US15541229

申请日：2015-12-30

Applicant: WASHINGTON UNIVERSITY

Inventor： Richard Axelbaum ,  Fei Xia ,  Benjamin Kumfer

IPC: F22B1/28 ,  F23N3/00 ,  F22B1/22 ,  F23C6/04 ,  F23L7/00 ,  F23J15/06 ,  F22B1/26 ,  F23N3/08 ,  F24H1/00 ,  F23B30/00

Abstract: A boiler has a shell surrounding a vertical centerline. The shell defines an inner surface having an inner diameter and an inner length extending between an upper upstream end and a lower downstream end. The inner surface defines a hollow interior, the boiler having a pre-combustion zone, a combustion zone downstream from the pre-combustion zone, and a post-combustion zone downstream from the combustion zone. The shell is tapered outward along its length in at least a portion of the combustion zone. An oxidizer inlet is in fluid communication with the pre-combustion zone, and a fuel nozzle introduces fuel into the combustion zone. A tube assembly is mounted in the hollow interior of the shell for transferring heat to fluid flowing through the tube assembly. A flue duct is in fluid communication with the post-combustion zone for transporting flue gases from the hollow interior.

公开(公告)号：US20170363284A1

公开(公告)日：2017-12-21

申请号：US15541229

申请日：2015-12-30

Applicant: WASHINGTON UNIVERSITY

Inventor： Richard Axelbaum ,  Fei Xia ,  Benjamin Kumfer

IPC: F22B1/28 ,  F23N3/08 ,  F24H1/00 ,  F22B1/26 ,  F23B30/00

Abstract: A boiler has a shell surrounding a vertical centerline. The shell defines an inner surface having an inner diameter and an inner length extending between an upper upstream end and a lower downstream end. The inner surface defines a hollow interior, the boiler having a pre-combustion zone, a combustion zone downstream from the pre-combustion zone, and a post-combustion zone downstream from the combustion zone. The shell is tapered outward along its length in at least a portion of the combustion zone. An oxidizer inlet is in fluid communication with the pre-combustion zone, and a fuel nozzle introduces fuel into the combustion zone. A tube assembly is mounted in the hollow interior of the shell for transferring heat to fluid flowing through the tube assembly. A flue duct is in fluid communication with the post-combustion zone for transporting flue gases from the hollow interior.

公开(公告)号：US20150013300A1

公开(公告)日：2015-01-15

申请号：US14295018

申请日：2014-06-03

Applicant: Washington University

Inventor： Richard L. Axelbaum ,  Benjamin M. Kumfer ,  Fei Xia ,  Akshay Gopan ,  Bhupesh Dhungel

IPC: F23L7/00 ,  F23J15/02 ,  F22B33/18 ,  F02C6/00 ,  F22B31/04 ,  F23B10/00 ,  F23B30/00

CPC classification number: F23L7/007 ,  F22B1/22 ,  F22B31/04 ,  F22B33/00 ,  F22B33/12 ,  F22B33/18 ,  F23C6/00 ,  F23C7/00 ,  F23J15/02 ,  F23J2215/50 ,  F23J2219/70 ,  Y02E20/344

Abstract: A boiler system having a series of boilers. Each boiler includes a shell having an upstream end, a downstream end, and a hollow interior. The boilers also have an oxidizer inlet entering the hollow interior adjacent the upstream end of the shell and a fuel nozzle positioned adjacent the upstream end of the shell for introducing fuel into the hollow interior of the shell. Each boiler includes a flue duct connected to the shell adjacent the downstream end for transporting flue gas from the hollow interior. Oxygen is delivered to the oxidizer inlet of the first boiler in the series. Flue gas from the immediately preceding boiler in the series is delivered through the oxidizer inlet of each boiler subsequent to the first boiler in the series.

Abstract translation: 具有一系列锅炉的锅炉系统。 每个锅炉包括具有上游端，下游端和中空内部的外壳。 锅炉还具有进入与壳体的上游端相邻的中空内部的氧化剂入口和邻近壳的上游端设置的燃料喷嘴，用于将燃料引入壳的中空内部。 每个锅炉包括与下游端相邻的外壳连接的烟道，用于从中空的内部输送烟道气。 氧气被输送到串联的第一锅炉的氧化剂入口。 来自该系列中的前一锅炉的烟道气通过该系列中的第一锅炉之后的每个锅炉的氧化剂入口输送。