SUPERHEATED STEAM BOILER AND METHOD FOR OPERATION THEREOF

    公开(公告)号:US20210199282A1

    公开(公告)日:2021-07-01

    申请号:US16077822

    申请日:2018-05-31

    摘要: Provided is a superheated steam boiler. The superheated steam boiler, in this embodiment, includes an inner tank system, the inner tank system including a first wet tank and a second dry tank separated from one another by an isolation member, an outer sleeve at least partially surrounding the inner tank system, wherein one or more wet tank fluid openings proximate a lower surface of the first wet tank allow the first wet tank to be in fluid communication with the outer sleeve, and further wherein one or more dry tank steam openings in the second dry tank allow the second dry tank to be in steam communication with the outer sleeve, and a burner system located primarily within the inner tank system. The burner system, in this embodiment, includes a combustion/expansion chamber having one or more spherical surfaces located in and fluidly isolated from the first wet tank, a distribution chamber located in and fluidly isolated from the second dry tank, a plurality of heat tubes extending through the isolation member between the combustion/expansion chamber and the distribution chamber; and an exhaust tube extending from the distribution chamber and out of the inner tank system to exit the superheated steam boiler.

    Type of turbo-generator unit
    5.
    发明授权
    Type of turbo-generator unit 有权
    涡轮发电机组的类型

    公开(公告)号:US09151177B2

    公开(公告)日:2015-10-06

    申请号:US12597609

    申请日:2007-10-15

    申请人: Weizhong Feng

    发明人: Weizhong Feng

    摘要: The present invention provides a novel turbo-generator unit, which at least comprises a boiler and a superheater and a reheater provided in the boiler. On the boiler, the positions corresponding to the header of the steam inlets and outlets of the superheater and reheater form the header-connection area; the steam pipe system at least comprises the pipes that connect the boiler with the HP cylinder and the IP cylinder and are used to transmit the HTHP steam; the HP cylinder and the generator constitute the high-level shafting, and the high-level shafting is positioned outside of boiler and close to the header-connection area. The present invention can also comprise a low-level shafting positioned at a low level. Since the high-level shafting and the low-level shafting are arranged at different levels, the lengths of costly HTHP steam pipes in the pipe system and the pressure drop and heat radiation loss of the pipe system are significantly reduced, and the work capability of the unit is improved. Furthermore, the quantity of the steam stored in the reheat system and the adjustment inertia of unit is reduced, and the economical efficiency of the double-reheat unit is sufficiently realized.

    摘要翻译: 本发明提供了一种新颖的涡轮发电机单元,其至少包括锅炉和设置在锅炉中的过热器和再热器。 在锅炉上,对应于过热器和再热器的蒸汽入口和出口的头部的位置形成集管连接区域; 蒸汽管道系统至少包括将锅炉与HP气缸和IP气缸连接并用于传输HTHP蒸汽的管道; HP气缸和发电机组成高级轴系,高层轴系位于锅炉外部,靠近集管连接区域。 本发明还可以包括位于低位的低级轴系。 由于高层轴系和低层轴系安排在不同的层次上,管道系统中昂贵的HTHP蒸汽管道的长度和管道系统的压降和散热损失大大降低,工作能力 单位得到改善。 此外,再热系统中储存的蒸汽量和单元的调节惯量降低,双重再热装置的经济效益得到充分实现。

    Multiple pass economizer and method for SCR temperature control
    6.
    发明授权
    Multiple pass economizer and method for SCR temperature control 有权
    多通道节能器和SCR温度控制方法

    公开(公告)号:US07637233B2

    公开(公告)日:2009-12-29

    申请号:US11542413

    申请日:2006-10-03

    IPC分类号: F22G1/02

    CPC分类号: F22D1/12

    摘要: A control system for maintaining a desired heat exchanger outlet flue gas temperature across a range of boiler loads. The heat exchanger includes a plurality of tubular configurations in heat exchange contact with the flue gas with each tubular configuration having a separate feedwater inlet. Flue gas temperature control is achieved by modulating the feedwater flow rates through the tubular configurations. In a system having two tubular configurations, the overall heat transfer capacity of the heat exchanger may be reduced to maintain the desired heat exchanger outlet flue gas temperature by reducing feedwater flow through one tubular configuration and overflowing the other, while maintaining the total flow of feedwater through the heat exchanger substantially constant.

    摘要翻译: 一种用于在一定范围的锅炉负荷下维持期望的热交换器出口烟气温度的控制系统。 热交换器包括与烟道气热交换接触的多个管状结构,每个管状构造具有单独的给水入口。 通过调节通过管状构造的给水流速来实现烟道气体温度控制。 在具有两个管状构造的系统中,可以减少热交换器的总传热能力,以通过减少通过一个管状结构的给水流量并溢出另一个而保持所需热交换器出口烟气温度,同时保持给水总流量 通过热交换器基本上恒定。

    ARRANGEMENT FOR AND A METHOD OF OPERATING A STEAM BOILER SYSTEM

    公开(公告)号:US20230016404A1

    公开(公告)日:2023-01-19

    申请号:US17786258

    申请日:2019-12-18

    发明人: Antti ROKKA

    摘要: A method of operating and an arrangement for a steam boiler system including a furnace and along a following flue gas channel a number of superheaters, a number of economizers, and at least one air preheater located in the flue gas channel downstream of the economizers, a fabric filter baghouse located in the flue gas channel downstream of the air preheater, and downstream of the fabric filter baghouse is located a selective catalytic reduction (SCR) system including an SCR reactor, a high pressure steam coil heater upstream of the SCR reactor and a gas-gas heat exchanger connected upstream and downstream of the SCR reactor to transfer heat from flue gas after the SCR reactor to the flue gas upstream of the high pressure steam coil heater.