METHOD AND APPARATUS FOR CORROSION MONITORING DURING STEAM GENERATOR CLEANING
    21.
    发明申请
    METHOD AND APPARATUS FOR CORROSION MONITORING DURING STEAM GENERATOR CLEANING 审中-公开
    在蒸汽发生器清洗过程中腐蚀监测的方法和装置

    公开(公告)号:WO1994016268A1

    公开(公告)日:1994-07-21

    申请号:PCT/US1993007528

    申请日:1993-08-12

    CPC classification number: F22B37/483

    Abstract: A self-sampling corrosion monitor is structurally adapted to be connected to the blowdown system or other piping systems external to the steam generator (14). The monitor includes a pump (24) for providing positive solvent flow through the monitor, and a regenerative heat exchanger (30) using recovered heat at the outlet. Magnetite (44) is also added to a sludge cup within the corrosion monitor vessel (40) to simulate real time measurement of short-lived corrosion conditions in the steam generator. In addition, the available equipment is modified to provide automatic microprocessor-controlled range selection. Still further, data acquisition, storage, and display techniques are modified.

    Abstract translation: 自取样腐蚀监测器在结构上适于连接到排污系统或蒸汽发生器(14)外部的其他管道系统。 监视器包括用于提供通过监视器的正溶剂流的泵(24)和在出口处使用回收热量的再生式热交换器(30)。 磁铁矿(44)也被加入到腐蚀监测器容器(40)内的污泥杯中,以模拟蒸汽发生器中短暂腐蚀条件的实时测量。 此外,可用的设备被修改以提供自动微处理器控制的范围选择。 此外,数据采集,存储和显示技术被修改。

    CONTROL SYSTEM FOR INTEGRATED GASIFICATION COMBINED CYCLE SYSTEM
    22.
    发明申请
    CONTROL SYSTEM FOR INTEGRATED GASIFICATION COMBINED CYCLE SYSTEM 审中-公开
    集成气化组合循环系统控制系统

    公开(公告)号:WO1994016210A1

    公开(公告)日:1994-07-21

    申请号:PCT/US1993011008

    申请日:1993-11-15

    Abstract: Control system (60) particularly suited for effecting control over an integrated gasification combined cycle system (IGCC) (62) that includes at least a fuel feed system (64), a gasifier system (10), a product gas cleanup system (66), a booster compressor (68) and a gas turbine (70). The subject control system (60) includes a bleed air control valve (96), a booster compressor bypass control valve (98), a fuel feed control valve (100) and a product gas shutoff valve (102). The bleed air control valve (96), which is connected in fluid flow relation between the gas turbine (70) and the booster compressor (68) of the IGCC (62), is operable for effecting control over the amount of air that is bled in the IGCC (62). The booster compressor bypass control valve (98), which is connected in fluid flow relation between the upstream side and the downstream side of the IGCC (62), is operable for effecting the bypass of air around the booster compressor (68) of the IGCC (62). The fuel feed control valve (100), which is connected in fluid flow relation between the fuel feed system (64) and the gasifier system (10) of the IGCC (62), is operable for effecting control over the amount of fuel that is fed from the fuel feed system (64) of the IGCC (62). The product gas shutoff valve (102), which is connected in fluid flow relation between the product gas cleanup system (66) and the gas turbine (70) of the IGCC (62), is operable for shutting off the flow of product gas to the gas turbine (70) of the IGCC (62).

    Abstract translation: 控制系统(60)特别适用于对包括至少燃料供给系统(64),气化器系统(10),产品气体净化系统(66))的综合气化联合循环系统(IGCC)(62)进行控制, ,增压压缩机(68)和燃气轮机(70)。 主体控制系统(60)包括排气控制阀(96),增压压缩机旁通控制阀(98),燃料供给控制阀(100)和产品气体截止阀(102)。 在燃气轮机(70)和IGCC(62)的增压压缩机(68)之间以流体流动关系连接的排气控制阀(96)可操作用于对流出的空气量进行控制 在IGCC(62)。 在IGCC(62)的上游侧和下游侧之间以流体流动关系连接的增压压缩机旁路控制阀(98)可操作以实现IGCC的增压压缩机(68)周围的空气旁路 (62)。 在燃料供给系统(64)和IGCC(62)的气化器系统(10)之间以流体流动关系连接的燃料供给控制阀(100)可操作以实现对燃料供给系统 从IGCC(62)的燃料供给系统(64)进料。 在产品气体净化系统(66)和IGCC(62)的燃气轮机(70)之间以流体流动关系连接的产品气体截止阀(102)可操作以将产物气体的流动截止到 IGCC(62)的燃气轮机(70)。

    ZIRCONIUM ALLOY WITH SUPERIOR CORROSION RESISTANCE
    23.
    发明申请
    ZIRCONIUM ALLOY WITH SUPERIOR CORROSION RESISTANCE 审中-公开
    具有超级耐腐蚀性的锆合金

    公开(公告)号:WO1994016112A1

    公开(公告)日:1994-07-21

    申请号:PCT/US1993007529

    申请日:1993-08-12

    CPC classification number: C22C16/00 G21C3/07 G21Y2002/10 G21Y2004/10 Y02E30/40

    Abstract: A stabilized alpha metal matrix provides an improved ductility, creep strength, and corrosion resistance against irradiation in a zirconium alloy containing on a weight percentage basis tin in a range of 0.4 to 1.0 percent and typically 0.5; iron in a range of 0.3 to 0.6 percent, and typically 0.46 percent; chromium in a range of 0.2 to 0.4 percent, and typically 0.23 percent; silicon in a range of 50 to 200 ppm, and typically 100 ppm; and oxygen in a range of 1200 to 2500 ppm, typically 1800 to 2200 ppm. The high oxygen level assists in reducing hydrogen uptake of the alloy compared to Zircaloy-4, for example.

    Abstract translation: 稳定的α金属基体提供改善的延展性,蠕变强度和抗锆合金耐辐射性,所述锆合金以重量百分比计含有0.4至1.0%且通常为0.5的锡; 铁在0.3%至0.6%的范围内,通常为0.46%; 范围为0.2〜0.4%,通常为0.23%的铬; 在50至200ppm范围内的硅,通常为100ppm; 和1200至2500ppm范围内的氧,通常为1800至2200ppm。 例如,与Zircaloy-4相比,高氧水平有助于降低合金的氢吸收。

    HIGH PERFORMANCE COAL GASIFIER SYSTEM
    24.
    发明申请
    HIGH PERFORMANCE COAL GASIFIER SYSTEM 审中-公开
    高性能煤气化系统

    公开(公告)号:WO1994016037A1

    公开(公告)日:1994-07-21

    申请号:PCT/US1993011009

    申请日:1993-11-15

    Abstract: A high performance, multi-stage, pressurized, airblown, entrained flow coal gasifier system (10) and a method of operating such a gasifier system (10) for generating therewithin fuel gas from coal. The subject gasifier system (10) includes an outer, pressure containing vessel (14) surrounding an inner, water-cooled vessel (12) wherein the gasification reaction, through which the fuel gas is generated from coal, takes place. The inner, water-cooled vessel (12) embodies a first stage (22) within which the high temperatures required for the gasification reactions to take place as well as for slagging are generated from the combustion of char, a second stage (24) within which the char is gasified to generate the subject fuel gas, and a third stage (26) within which coal is devolatilized to produce the char for the first stage (22) and the second stage (24) and with a concomitant quenching being effected of the fuel gas as the latter flows through the third stage (26) of the inner water-cooled vessel (12).

    Abstract translation: 一种高性能,多级,加压,气吹,夹带气流煤气化炉系统(10)和一种操作这种气化器系统(10)的方法,用于在煤中产生燃料气体。 目标气化器系统(10)包括围绕内部水冷容器(12)的外部包含压力的容器(14),其中发生燃烧气体由煤产生的气化反应。 内部水冷却容器(12)包含第一阶段(22),在该第一阶段(22)中,气化反应发生所需的高温以及排渣是由炭的燃烧产生的,第二阶段(24) 其中气体气化以产生目标燃料气体;以及第三级(26),在该第三级(26)中,煤被脱挥发分以产生用于第一级(22)和第二级(24)的焦炭,并伴随着淬火 当后者的燃料气体流过内部水冷却容器(12)的第三级(26)时。

    METHOD AND APPARATUS FOR GENERATING NUCLEAR REACTOR TRIP THRESHOLDS
    25.
    发明申请
    METHOD AND APPARATUS FOR GENERATING NUCLEAR REACTOR TRIP THRESHOLDS 审中-公开
    用于产生核反应堆TRIP阈值的方法和装置

    公开(公告)号:WO1994012984A1

    公开(公告)日:1994-06-09

    申请号:PCT/US1993007532

    申请日:1993-08-12

    CPC classification number: G21D3/04 G21C9/00 Y02E30/40

    Abstract: A method for generating an on-line trip signal when a measured one (p1') of a plurality of operating parameters (p1, p2, p3, ...pN) which define a limit surface on a multidimensional reactor operating space, exceeds a limit value (*p1) on the limit surface. The method includes the steps of storing in an array having at least three dimensions, a set of discrete limit surface values *p1(r) of parameter p1 in ordered triplets, [*p1(r), p2(r) and p3(r)] under reference conditions in which parameters p2 and p3 vary discrtely and parameters p4 ...pN are deemed constant. While operating the reactor, the on-line values p1', p2', p3' of the parameters p1, p2 and p3 are measured. An interpolation is made among the selected triplets to estimate the surface limit value *p1' corresponding to the measured values of p2' and p3'. Preferably, the method includes measuring the operating parameters p4, p5 to obtain values p4' and p5'. The storage means includes a second array defining a quantitative relationship among the values in triplets [*p1(a), p4(a), and p5(a)]. The estimated value of *p1' is then adjusted by the step of interpolating between values of p4(a) and p5(a) based on the measured values p4', p5' to arrive at an adjsuted estimate of the power, *p = *p1' + *p1'(a) or *p1 = (*p1')(*p1'(a)).

    Abstract translation: 当在多维反应堆操作空间中限定极限表面的多个操作参数(p1,p2,p3,... pN)的测量值(p1')超过一个(p1')时,产生在线跳闸信号的方法 极限表面的极限值(* p1)。 该方法包括以下步骤:将具有至少三个维度的阵列存储在有序三元组中的参数p1的一组离散极限表面值* p1(r),[* p1(r),p2(r)和p3(r )]在参数p2和p3差异变化的参考条件下,参数p4 ... pN被认为是恒定的。 在操作电抗器时,测量参数p1,p2和p3的在线值p1',p2',p3'。 在所选择的三元组之间进行插值以估计与p2'和p3'的测量值相对应的表面极限值* p1'。 优选地,该方法包括测量操作参数p4,p5以获得值p4'和p5'。 存储装置包括限定三元组[* p1(a),p4(a)和p5(a)]中的值之间的定量关系的第二阵列。 然后通过基于测量值p4',p5'在p4(a)和p5(a)的值之间进行内插的步骤来调整* p1'的估计值,以获得功率的调整估计值* p = * p1'+ * p1'(a)或* p1 =(* p1')(* p1'(a))。

    DETECTION OF CORE THERMAL HYDRAULIC OSCILLATIONS
    26.
    发明申请
    DETECTION OF CORE THERMAL HYDRAULIC OSCILLATIONS 审中-公开
    检测核心热液压振荡

    公开(公告)号:WO1993007623A1

    公开(公告)日:1993-04-15

    申请号:PCT/US1992005654

    申请日:1992-07-06

    CPC classification number: G21C17/112 G21D3/04 Y02E30/40

    Abstract: A plurality of neutron flux sensors (44, 46, 48, 50) and a corresponding plurality of gamma flux sensors (62, 64, 66, 68) are distributed throughout axial zones (24, 26, 28, 30) of the core (14) at the same or closely proximate locations. A steady state comparison, or bias, between the signals of a given neutron/gamma sensor pair are monitored (314, 316), and a divergence (or convergence) can readily be detected through simple signal filtering, to detect a shift in the bias. The pattern of significant convergence and divergence throughout the core, is indicative of the thermal hydraulic stability of the core.

    LASER POSITION INDICATOR FOR VALVE STEM
    27.
    发明申请
    LASER POSITION INDICATOR FOR VALVE STEM 审中-公开
    用于阀门的激光定位指示器

    公开(公告)号:WO1992012373A1

    公开(公告)日:1992-07-23

    申请号:PCT/US1991008283

    申请日:1991-11-12

    CPC classification number: G01S17/88 F16K37/0083

    Abstract: The displacement of a valve stem (16) is measured during diagnostic testing by temporarily mounting a laser head (112) on the valve body (18) or yoke (20), for generating a source laser beam (118) that reflects from a target (120) that moves with the stem. The timing of the reflected beam (132) returning to the head (112) relative to the projection of the source beam, gives an indication of the displacement of the stem.

    Abstract translation: 在诊断测试期间通过临时将激光头(112)安装在阀体(18)或轭(20)上来测量阀杆(16)的位移,以产生从目标反射的源激光束(118) (120),其随着杆移动。 相对于源光束的投影返回到头部(112)的反射光束(132)的时序给出了该光束的位移的指示。

    ULTRASONIC METHOD AND APPARATUS FOR MEASURING OUTSIDE DIAMETER OF TUBE
    28.
    发明申请
    ULTRASONIC METHOD AND APPARATUS FOR MEASURING OUTSIDE DIAMETER OF TUBE 审中-公开
    用于测量管外径的超声方法和装置

    公开(公告)号:WO1992009864A1

    公开(公告)日:1992-06-11

    申请号:PCT/US1991007401

    申请日:1991-10-07

    CPC classification number: G01B17/02

    Abstract: An apparatus (10) for measuring an outside diameter of a cylindrical object moving along an axis (14) includes a plurality of fixed transducer pairs (12a-12h) for providing a continuous outside diameter profile of the moving cylindrical object. The sensors (12) are located in a holder (18) enveloping the cylindrical object. Temperature compensation for changes in temperature in the coupling medium include a wire reflector (50) in an ultrasonic path at a fixed distance from a face of the sensor (12). Various types of outputs, including a continuous profile of the cylindrical object are provided. A method of measuring the outside diameter of such cylindrical objects while moving is also disclosed.

    ADVANCED NUCLEAR PLANT CONTROL COMPLEX
    29.
    发明申请
    ADVANCED NUCLEAR PLANT CONTROL COMPLEX 审中-公开
    高级核工厂控制综合

    公开(公告)号:WO1991006960A1

    公开(公告)日:1991-05-16

    申请号:PCT/US1989004899

    申请日:1989-11-02

    CPC classification number: G21C7/36 Y02E30/39

    Abstract: An advanced control room complex for a nuclear power plant, including a discrete indicator and alarm system (72) which is nuclear qualified for rapid response to changes in plant parameters and a component control system (64) which together provide a discrete monitoring and control capability at a panel (14-22, 26, 28) in the control room (10). A separate data processing system (70), which need not be nuclear qualified, provides integrated and overview information to the control room and to each panel, through CRTs (84) and a large, overhead integrated process status overview board (24). The discrete indicator and alarm system (72) and the data processing system (70) receive inputs from common plant sensors and validate the sensor outputs to arrive at a representative value of the parameter for use by the operator during both normal and accident conditions, thereby avoiding the need for him to assimilate data from each sensor individually. The integrated process status board (24) is at the apex of an information hierarchy that extends through four levels and provides access at each panel to the full display hierarchy. The control room panels are preferably of a modular construction, permitting the definition of inputs and outputs, the man machine interface, and the plant specific algorithms, to proceed in parallel with the fabrication of the panels, the installation of the equipment and the generic testing thereof.

    Abstract translation: 一个核电厂的先进控制室综合体,其中包括一个离散的指示器和报警系统(72),其具有对符合工厂参数变化的快速响应的核限制和一个组件控制系统(64),它们共同提供离散的监控和控制能力 在控制室(10)中的面板(14-22,26,28)处。 不需要核资格的单独的数据处理系统(70)通过CRT(84)和大的开销集成过程状态概览板(24)向控制室和每个面板提供综合和概览信息。 离散指示器和报警系统(72)和数据处理系统(70)接收来自公共工厂传感器的输入并验证传感器输出以得到参数的代表值,供操作者在正常和事故状态期间使用,从而 避免他需要从每个传感器分别吸收数据。 集成过程状态板(24)处于信息层级的顶点,其延伸通过四个层次,并在每个面板上提供访问到完整显示层次。 控制室面板优选地是模块化结构,允许输入和输出的定义,人机界面和设备特定算法,以与面板的制造,设备的安装和通用测试并行进行 它们。

    NUCLEAR FUEL CONTAINER TAMPER-PROOF CLOSURE
    30.
    发明申请
    NUCLEAR FUEL CONTAINER TAMPER-PROOF CLOSURE 审中-公开
    核燃料集装箱防篡改关闭

    公开(公告)号:WO1990015759A1

    公开(公告)日:1990-12-27

    申请号:PCT/US1990001293

    申请日:1990-03-15

    CPC classification number: G21C19/07 B65D55/02

    Abstract: A tamper-proof closure (10) is inserted by means of positioning tool (20) into a nuclear fuel consolidation storage canister (30). The closure (10) includes a grooved weakened portion (44), which if it exceeds its elastic limit when the base (12) is flexed during removal attempts will indicate any attempts to remove or otherwise tamper with the thus closed canister. Locking tabs (18), on transverse legs (13 and 14) extending from base (12) are engaged in slots (40) in the wall of the opening of canister (30) when the closure (10) is in fuel storage position. Tool (20) has a portion (46) which enters a slot (48) in base (12) at 90° to its working position and then twists to engage spanning portion (42's) flanges (43) in slots of flanges (16) on the legs (13) and (14) to retract tabs (18). The base is prevented from flexing on insertion into the container opening by support it receives from portion (46).

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