Method for starting a steam generator comprising a heating gas channel that can be traversed in an approximately horizontal heating gas direction and a steam generator
    2.
    发明申请
    Method for starting a steam generator comprising a heating gas channel that can be traversed in an approximately horizontal heating gas direction and a steam generator 有权
    一种用于启动蒸汽发生器的方法,该蒸汽发生器包括可沿大致水平的加热气体方向穿过的加热气体通道和蒸汽发生器

    公开(公告)号:US20060192023A1

    公开(公告)日:2006-08-31

    申请号:US10488328

    申请日:2002-08-20

    IPC分类号: F24D1/00

    CPC分类号: F22B35/14 F22B1/1815

    摘要: The invention relates to a steam generator comprising a heating gas channel, which can be traversed in an approximately horizontal heating gas direction and in which at least one continuous heating surface is located, configured from a number of approximately vertical evaporator tubes, connected in parallel to allow the passage of a flow medium. The aim of the invention is to provide a method for starting a generator, which guarantees a high degree of operational safety, even for a steam generator with a particularly simple construction. According to the invention, to achieve this, at least several evaporator tubes are partially filled to a predeterminable desired level with unevaporated flow medium, prior to the impingement of the heating gas channel by a heating gas.

    摘要翻译: 本发明涉及一种蒸汽发生器,其包括加热气体通道,该加热气体通道可沿大致水平的加热气体方向穿过并且其中至少一个连续的加热表面位于其中,其由多个大致垂直的蒸发器管构成,并联连接到 允许流动介质通过。 本发明的目的是提供一种用于启动发电机的方法,即使对于具有特别简单结构的蒸汽发生器也能保证高度的操作安全性。 根据本发明,为了实现这一点,在通过加热气体冲击加热气体通道之前,至少几个蒸发器管部分地被填充到具有未蒸发的流动介质的可预定的期望水平。

    Flow control for once-through boiler having integral separators
    3.
    发明授权
    Flow control for once-through boiler having integral separators 失效
    一体式分离器直流锅炉的流量控制

    公开(公告)号:US4068475A

    公开(公告)日:1978-01-17

    申请号:US678525

    申请日:1976-04-20

    IPC分类号: F22B35/14 F01K13/02

    CPC分类号: F22B35/14

    摘要: A once-through boiler is provided with integral separators with which drain valves are associated. Boiler inlet and outlet flows are balanced throughout startup first by drain valve control in response to separator level and then by drain valve control in response to throttle pressure.

    摘要翻译: 一个直通式锅炉设置有与排放阀相关联的整体分离器。 锅炉入口和出口流量首先通过排放阀控制响应于分离器水平平衡,然后通过排放阀控制响应节气门压力平衡。

    Method of controlling the feed of forced circulation steam generators
    4.
    发明授权
    Method of controlling the feed of forced circulation steam generators 失效
    控制强制循环蒸汽发生器进料的方法

    公开(公告)号:US3780705A

    公开(公告)日:1973-12-25

    申请号:US3780705D

    申请日:1972-09-25

    申请人: SULZER AG

    发明人: DE VIVY D

    CPC分类号: F22B35/14 F22B35/101

    摘要: The rate of feedwater flow is controlled in a first load range by the level of water in the separator while in a higher load range the rate is controlled by the steam temperature. Signals are produced which are compared with preset values and are integrated so as to produce a negative control signal in one case and a positive control signal in the other case. Only one of these control signals is superimposed on a base signal only when the generator is in a respective load range so as to produce a command signal for adjusting the feed controller of the feed valve.

    摘要翻译: 给水流量在第一负载范围内通过分离器中的水位控制,而在较高的负载范围内,该速率由蒸汽温度控制。 产生与预设值进行比较的信号,并且被集成以在一种情况下产生负控制信号,在另一种情况下产生正控制信号。 只有当发电机处于相应的负载范围时才​​将这些控制信号中的一个叠加在基本信号上,以产生用于调节进给阀的进给控制器的命令信号。

    Startup system
    5.
    发明授权
    Startup system 失效
    启动系统

    公开(公告)号:US3590787A

    公开(公告)日:1971-07-06

    申请号:US3590787D

    申请日:1969-07-16

    发明人: STEVENS WILLIAM D

    IPC分类号: F22B35/14

    CPC分类号: F22B35/14

    摘要: An improved startup system for a vapor generator of the oncethrough type. The system includes a startup bypass line which leads directly to the tube side of a shell and tube feedwater heater for the generator feedwater circuit, from certain heating passes of the generator main flow circuit; a branch line which leads from the bypass line to the shell side of the heater; and a return line which returns the flow from the heater shell side back to the generator main flow circuit downstream of the bypass line. A pressure reducing valve in the branch line reduces the pressure of the fluid flowing therein lowering its temperature for heat exchange with fluid on the tube side of the heater. The feedwater circuit of the generator includes a bypass around the heater, the generator further having shutoff valves in both the startup system and feedwater circuit for isolating the heater from one or the other of the main flow or feedwater circuits depending upon use of the heater.