Process for starting up a heat exchanger system for steam generation and
heat exchanger system for steam generation
    3.
    发明授权
    Process for starting up a heat exchanger system for steam generation and heat exchanger system for steam generation 失效
    用于启动用于蒸汽发生的热交换器系统和用于蒸汽发生的热交换器系统的方法

    公开(公告)号:US5189988A

    公开(公告)日:1993-03-02

    申请号:US744929

    申请日:1991-08-13

    IPC分类号: F22B1/18 F22B35/00

    CPC分类号: F22B35/007 F22B1/1815

    摘要: The invention relates to a process for starting up a heat exchanger system for the generation of steam accommodated in a hot gas line, in particular in an exhaust gas line, conveniently in a waste heat boiler, for instance downstream from a gas turbine, for instance for starting up a circulation system steam generator or a continuous flow (once-through) steam generator, conveniently a natural or forced circulation boiler or once-through boiler, in particular a preheater/evaporator/superheater system provided with a start-up heat exchanger upstream via which the supply of feed medium, in particular water or steam, is effected, and which on start-up dispenses first hot steam and finally water to the heat exchanger system, so that the initially pressureless, void heat exchanger system substantially heated to hot gas temperature is continuously brought to its operative state and its operating temperature, as well as a corresponding heat exchanger system. The process is mainly characterized in that the start-up heat exchanger is filled with feed medium in the cold state and subsequently charged with hot gas. The apparatus is mainly characterized in that the start-up heat exchanger (2) is at least partially, conveniently virtually completely, separable from the hot gas stream, the start-up heat exchanger serving in particular as an auxiliary steam generator for starting up the entire system from the cold state.

    摘要翻译: 本发明涉及一种用于启动热交换器系统的方法,用于产生容纳在热气管线中的蒸汽,特别是在排气管线中,方便地在废热锅炉中,例如燃气轮机的下游,例如 用于启动循环系统蒸汽发生器或连续流(一次通过)蒸汽发生器,方便地是自然或强制循环锅炉或直通式锅炉,特别是具有启动热交换器的预热器/蒸发器/过热器系统 进料介质供应,特别是水或蒸汽的上游,并且在启动时将第一热蒸汽和最后的水分配给热交换器系统,使得初始无压空隙热交换器系统基本上被加热到 热气体温度连续地达到其工作状态及其工作温度,以及相应的热交换器系统。 该方法的主要特征在于,起动热交换器在冷态下填充进料介质,随后装入热气。 该装置的主要特征在于,起动热交换器(2)至少部分地,实际上完全地与热气流分离,启动热交换器特别用作辅助蒸汽发生器,用于启动 整个系统从寒冷的状态。