FEEDWATER HEATER
    2.
    发明授权
    FEEDWATER HEATER 有权
    给水

    公开(公告)号:EP1468222B1

    公开(公告)日:2008-12-17

    申请号:EP03703743.9

    申请日:2003-01-09

    IPC分类号: F22D1/00 F22D1/12 F22B37/02

    摘要: A feedwater heater for a steam generator (A) or heat recovery boiler or waste heat boiler through which hot gases pass includes two sections (26, 28) which are located side by side so that the temperature of the hot gases at the upstream face (30) of each section is essentially the same. The feedwater flows through a heat exchanger (34) before entering the first section, and here it is heated by water flowing from the upstream face of the first section to the downstream face (32) of the second section. The arrangement is such that all tubes in the two sections remain above the dew point of the hot gases, so that water does not condense on the tubes and unite with oxides of sulfur to form sulfuric acid which will corrode the tubes, yet substantial temperature differentials exist between the water in the sections and the hot gases as the gases pass through the sections.

    EXHAUST GAS RESIDUAL HEAT RECOVERY DEVICE
    5.
    发明公开

    公开(公告)号:EP2587143A4

    公开(公告)日:2017-11-22

    申请号:EP11798003

    申请日:2011-06-13

    摘要: In a duct leading to a chimney (10) which discharges exhaust gas to the atmosphere, an exhaust gas residual heat recovery device (1) is provided with a dry economizer (2) which uses the sensible heat of exhaust gas to heat water-to-be-heated; and a condensation economizer (4) which is provided on the downstream side of the dry economizer (2), and uses the condensation latent heat of exhaust gas to heat the water-to-be-heated. The duct comprises a first stage duct (6) wherein the dry economizer (2) is provided, and a latter stage duct (8) which is connected to the first stage duct (6), and changes exhaust gas flow into rising flow. The condensation economizer (4) is installed in the latter stage duct (8). The configuration of the duct is such that the exhaust gas reaches the condensation temperature in the vicinity of an upper section (5) of the condensation economizer (4).

    Vorrichtung zum Vermeiden von Taupunktkorrosion in einem Zwangumlaufdampferzeuger
    6.
    发明公开
    Vorrichtung zum Vermeiden von Taupunktkorrosion in einem Zwangumlaufdampferzeuger 失效
    在einem Zwangsumlaufdampferzeuger的Verfahren zur Vermeidung von Dampfbildung

    公开(公告)号:EP0931978A1

    公开(公告)日:1999-07-28

    申请号:EP98810027.7

    申请日:1998-01-21

    IPC分类号: F22D1/12 F01K23/10

    CPC分类号: F22D1/12 F01K23/106 Y02E20/16

    摘要: Dampferzeuger, vorzugsweise Abhitzedampferzeuger einer kombinierten Gas-Dampf-Kraftwerksanlage mit einem Gasturbinenkreislauf und einem Dampfturbinenkreislauf, bei welcher Anlage die Abgase einer Gasturbine (4) ihre Restwärme über das im Dampferzeuger (7) strömende Arbeitsmittel, welches über eine Speisepumpe (14, 20) gefördert wird, an eine Dampfturbine (9, 10) abgeben, und wobei der Dampferzeuger (7) mindestens einen Economiser (15, 21) und einen Verdampfer (16, 22) aufweist. Zur Verhinderung der Dampfbildung im Economiser (15, 21) wird der Druck im Economiser oberhalb des Sättigungsdruckes erhöht.
    Der Druck im Economiser (21) kann mittels eines wasserseitig vor dem Verdampfer angeordneten Speisewasserregelventils (53) und einer drehzahlgeregelten Speisepumpe (20) eingestellt.werden. Er kann auch aufgelastet werden durch Absperren der wasserseitigen Zuströmleitung (49) und durch Einleiten des Speisewassers in den Economiser über dessen Austrittssammler (15b).

    摘要翻译: 该装置在节能器(15)周围具有旁路管线(50)和在供给节能器和旁路管线的管路中的阻塞阀(52,51)。 节能器中的压力升高到饱和压力以上。 还包括用于操作蒸汽发生器的方法的独立权利要求。

    System for fluid medium preheating
    8.
    发明公开
    System for fluid medium preheating 有权
    系统,用于液体介质的预加热

    公开(公告)号:EP2940381A1

    公开(公告)日:2015-11-04

    申请号:EP14166156.1

    申请日:2014-04-28

    IPC分类号: F22B37/02 F22D1/00 F22D1/12

    摘要: The preheating system (100) for preheating fluid medium to be fed into the HRSG (200) includes a feed line (110) and a recirculation line (120). The feed line (110) is adapted to feed the fluid medium to a Low Pressure Economizer LPE (210) of the HRSG (200). The feed line (110) is adapted to be adjoined to an inlet (210a) of the LPE (210), and an outlet (210b) of the LPE (210) enables therefrom the flow of the fluid medium in further portion of the HRSG (200). The recirculation line (120) is adapted to be connected between the outlet (210a) and the inlet (210b) of the LPE (210), in parallel to LPE (210) to recirculate the fluid medium to the LPE (210).