公开(公告)号：WO1993009542A1

公开(公告)日：1993-05-13

申请号：PCT/US1992005655

申请日：1992-07-06

Applicant: COMBUSTION ENGINEERING, INC.

Inventor： COMBUSTION ENGINEERING, INC. ,  ALLEN, Bruce, Frederick

IPC: G21C13/02

CPC classification number: G21C13/022 ,  G21D1/02 ,  Y02E30/40

Abstract: A vent tube (66) and housing nut (62) replace the original housing plug (52) on a pressurized water nuclear reactor. The vent tube engages the installed vent stem (38) cross-slot (48) with a cross-shaped projection (70). During operation, the vent tube (66) is pushed down to engage the vent stem (38) and rotated to allow vented air to travel through stem (38) and tube (66). After venting, the vent stem is rotated back and tightened. The invention provides visual indication of a leaking ball (32) since any leakage lifts vent tube (66). Time required for venting is reduced and no removal of installed ball seal (32, 34), a proven primary seal, is required.

公开(公告)号：WO1993009442A1

公开(公告)日：1993-05-13

申请号：PCT/US1992005471

申请日：1992-07-01

Applicant: COMBUSTION ENGINEERING, INC.

Inventor： COMBUSTION ENGINEERING, INC. ,  BANDA, Lionel, Alfred

IPC: G01P03/486

CPC classification number: G01D5/268 ,  G01D5/30 ,  G01D5/342 ,  G01P3/486 ,  G21C17/00

Abstract: An apparatus for monitoring the position of the shaft (1) of a coolant circulating pump of a nuclear steam generating system comprising light source (3) for directing a light beam at a number of reflecting surfaces (5a) on the shaft (1) and a pair of spaced apart light receiving devices (7) adapted to receive light beams reflected off the reflecting surface (5). Light from the receiving devices (7) is conveyed, by fiber optic cables (9), to intensity measuring devices (11) which measure the intensity of the two light beams on a time-dependent basis. A processor (13) calculates the shaft rotational speed and the magnitude of the shaft wobble as functions of the time-dependent intensity measurements of the pair of reflected light beams.

公开(公告)号：WO1991009405A1

公开(公告)日：1991-06-27

申请号：PCT/US1990006709

申请日：1990-11-19

Applicant: COMBUSTION ENGINEERING, INC.

Inventor： COMBUSTION ENGINEERING, INC. ,  OVERBAY, Mark, Albert ,  CRABTREE, Samuel, Blaine

IPC: G21F07/06

公开(公告)号：WO1990012301A1

公开(公告)日：1990-10-18

申请号：PCT/US1990001286

申请日：1990-03-15

Applicant: COMBUSTION ENGINEERING, INC.

Inventor： COMBUSTION ENGINEERING, INC. ,  HAYES, James, K.

IPC: G01M03/28

CPC classification number: G01M3/002 ,  G01M3/2876

Abstract: Valve leakage is quantified by measuring a variable that is commensurate with a heat transfer characteristic of the pipe wall (30) and comparing the measurements to data stored in a database (84) which embodies a quantitative relationship between an index commensurate with the heat transfer characteristic variable and a range of valve leakage rates that could occur for the given value. In a straight forward implementation of the invention, a thermal hydraulic analysis of the specific valve and associated piping are performed a priori to establish a database of pipe wall temperature downstream of the valve as a function of steam flow rate. The wall temperature is simply measured and compared with the database. In another embodiement, an air cooled sleeve (54) is installed around the pipe (48) downstream of the valve (50) and a controlled flow of air is passed through the annulus (62) between the pipe and the sleeve. The temperature rise of the flowing air is measured and is used to compute the flow rate of steam leaking through the valve. In yet another embodiment, the valve leakage is quantified by monitoring and controlling heat input into a local section of a horizontal pipe (94) upstream of the valve. The center zone (106) of the heaters (96) is controlled to raise the pipe temperature a certain amount above the steam temperature and the power required to maintain the temperature is measured. The database provides a quantitative relationship between such power input and stream flow through the valve.

Abstract translation: 通过测量与管壁（30）的传热特性相称的变量并将测量与存储在数据库（84）中的数据进行比较来量化阀泄漏，数据库（84）体现了与传热特性相称的指数之间的定量关系 变量和给定值可能发生的阀门泄漏率范围。 在本发明的直接实施中，首先执行特定阀和相关管道的热液压分析，以便根据蒸汽流量建立阀下游的管壁温度数据库。 墙壁温度简单地测量并与数据库进行比较。 在另一个实施例中，空气冷却套筒（54）安装在阀门（50）下游的管道（48）周围，并且受控的空气流通过管道和套管之间的环形空间（62）。 测量流动空气的温度升高，并用于计算通过阀门泄漏的蒸气的流量。 在另一个实施例中，通过监测和控制热量输入到阀上游的水平管（94）的局部部分中来定量阀泄漏。 加热器（96）的中心区域（106）被控制以将管道温度提高到高于蒸汽温度的一定量，并且测量维持温度所需的功率。 数据库提供了这种功率输入和通过阀门的流量之间的定量关系。

公开(公告)号：WO1987001055A1

公开(公告)日：1987-02-26

申请号：PCT/US1986001449

申请日：1986-07-14

Applicant: COMBUSTION ENGINEERING, INC.

Inventor： COMBUSTION ENGINEERING, INC. ,  PRAIRIE, Robert, S.

IPC: B02C15/04

CPC classification number: B02C15/04

Abstract: A mechanical spring journal assembly (20) particularly suited for use in a bowl mill (10) of the type that is employed for purposes of effectuating therewithin the pulverization of material such as coal. It is through the operation of the subject mechanical spring journal assembly (20) that there is established the magnitude of the forces which the grinding rolls (18) of the bowl mill (10) apply to the coal for purposes of accomplishing the pulverization of the coal. The subject mechanical spring journal assembly (20) includes spring housing means (44) comprising a self-contained subassembly unit for the operating components of the mechanical spring journal assembly (20), stud bearing means (38) attached to one end of the spring housing means (44), preload stud means (40) having one end thereof supported by the stud bearing means (38), pressure spring means (42) positioned in surrounding relation to the preload stud means (40) and adjustment means (46) operative for mounting the mechanical spring journal assembly (20) in the bowl mill (10).

公开(公告)号：WO1983003561A1

公开(公告)日：1983-10-27

申请号：PCT/US1983000304

申请日：1983-03-07

Applicant: COMBUSTION ENGINEERING, INC.

Inventor： COMBUSTION ENGINEERING, INC. ,  DEVE, Vagn

IPC: B22C05/18

CPC classification number: B22C5/18 ,  Y10S241/10

Abstract: The system (10) is particularly suited for reclaiming used foundry sand by means of thermal reclamation. The used sand, which preferably is first fed through a lump-crusher, shake-out apparatus (12), is made to pass through thermal reclaimer means (14) while being heated to a predetermined temperature for a preestablished period of time in order to accomplish the burning away of the organic materials, i.e., matter, which are present in the used sand. From the thermal reclaimer means (14), the used sand passes to and through the post reclaimer means (15) for further reclaiming and then to and through the primary cooling means (16) wherein the heated sand is cooled to a suitable temperature. The separator means (18) is operative to effect the removal of tramp metal from the cooled, thermally reclaimed sand. Thereafter, the cooled, thermally reclaimed sand is made to pass through the classifying and dust removal means (19) for classifying and removal of dust and fines and then through the scrubber means (20) wherein the dust associated with the particles of sand is removed therefrom. Finally, the substantially dust-free, cooled, thermally reclaimed sand passes through the secondary cooling means (22) wherein the sand is further cooled to substantially ambient temperature.

Abstract translation: 系统（10）特别适用于通过热回收回收旧的铸造砂。 优选首先通过块式破碎机送出装置（12）的二手砂通过热回收装置（14），同时被加热到预定温度以进行预先确定的时间段，以便 完成有机材料的燃烧，即存在于用过的砂中的物质。 二次砂从热回收装置（14）通过并通过回收装置（15）进一步回收，然后通过主冷却装置（16）并通过主冷却装置（16），其中加热的砂被冷却到合适的温度。 分离装置（18）可操作以从被冷却的热回收砂中去除流出的金属。 此后，冷却的热回收砂被制成通过分级除尘装置（19），用于分类和除去灰尘和细粉，然后通过洗涤器装置（20），其中除去与砂粒相关的粉尘被除去 由此。 最后，基本上无尘，冷却的热回收砂通过二次冷却装置（22），其中砂进一步冷却至大致环境温度。

公开(公告)号：WO1998028570A1

公开(公告)日：1998-07-02

申请号：PCT/US1997021876

申请日：1997-12-01

Applicant: COMBUSTION ENGINEERING, INC.

Inventor： COMBUSTION ENGINEERING, INC. ,  TANCA, Michael, C.

IPC: F22B31/00

CPC classification number: F23C10/28 ,  F22B31/0084 ,  F23C10/10 ,  F23C2206/103

Abstract: A control scheme for large circulating fluidized bed steam generators (CFB) (2) wherein direct control is effected therewith over the temperature of the large circulating fluidized bed steam generators (CFB) (2) and wherein independent control (70, 72, 28a, 30a, 32a, 34, 36), (74, 28b, 30b, 32b, 34, 36) is effected therewith over the final superheat steam temperature of the large circulating fluidized bed steam generators (CFB) (2) as well as over the final reheat steam temperature of the large circulating fluidized bed steam generators (CFB) (2).

Abstract translation: 大型循环流化床蒸汽发生器（CFB）（2）的控制方案，其中在大循环流化床蒸汽发生器（CFB）（2）的温度下直接控制，其中独立控制（70,72,28a， 30a，32a，34,36），（74,28b，30b，32b，34,36）在大循环流化床蒸汽发生器（CFB）（2）的最终过热蒸汽温度下以及在 大循环流化床蒸汽发生器（CFB）的最终再热蒸汽温度（2）。

公开(公告)号：WO1995017630A1

公开(公告)日：1995-06-29

申请号：PCT/US1994014209

申请日：1994-12-09

Applicant: COMBUSTION ENGINEERING, INC.

Inventor： COMBUSTION ENGINEERING, INC. ,  DOUGLAS, Mark, A. ,  MORRISON, Stuart, A. ,  WONG, Steve, Y. ,  CHIU, John, H. ,  HARGROVE, Michael, J. ,  JUKKOLA, Glen, D.

IPC: F23G05/30

CPC classification number: F23G5/30 ,  F23C10/14 ,  F23G7/10 ,  F23G2203/502 ,  F23G2205/121 ,  F23G2205/14 ,  F23G2205/18 ,  F23G2209/12 ,  F23G2209/22 ,  F23G2209/261

Abstract: A fluidized bed combustion system (10) particularly suited for use to effect the incineration, i.e., combustion therewith of wood waste/sludge mixtures that have high moisture and ash content which makes them difficult to burn. The fluidized bed combustion system (10) includes a fluidized bed combustor (12) embodying a fluidized bed (24) composed of bed solids. Air is injected into the fluidized bed (24) through an air distributor (28) to establish a first controlled fluidizing velocity zone and a second controlled fluidizing velocity zone therewithin. Material (42b) is introduced into the fluidized bed combustor (12) above the second controlled fluidizing velocity zone. Bed solids are projected from the first controlled fludizing velocity zone to the second controlled fluidizing velocity zone whereupon the bed solids rain down upon the material (42b) and effect a covering thereof. The material (42b) is then dried and thereafter combusted. Inerts/tramp materials/clinkers as well as large diameter solids entrained with the material (42b) are segregated therefrom and then are removed (64) from the fluidized bed combustor (12).

Abstract translation: 流化床燃烧系统（10）特别适于用于实现焚化，即与其具有高水分和灰分含量的木材废物/污泥混合物的燃烧，这使得它们难以燃烧。 流化床燃烧系统（10）包括实现由床固体组成的流化床（24）的流化床燃烧器（12）。 空气通过空气分配器（28）注入到流化床（24）中，以在其中建立第一受控流化速度区和第二受控流化速度区。 材料（42b）被引入第二受控流化速度区之上的流化床燃烧器（12）。 床固体从第一受控凝结速度区域投射到第二受控流化速度区域，随后床固体在材料（42b）上下降并且影响其覆盖。 然后将材料（42b）干燥并随后燃烧。 惰性物质/杂质材料/熟料以及夹带有材料（42b）的大直径固体与其分离，然后从流化床燃烧器（12）中除去（64）。

公开(公告)号：WO1994029809A1

公开(公告)日：1994-12-22

申请号：PCT/US1994004396

申请日：1994-04-22

Applicant: COMBUSTION ENGINEERING, INC.

Inventor： COMBUSTION ENGINEERING, INC. ,  WOODMAN, Brian, Wilder ,  HALL, John, F.

IPC: G06F15/60

CPC classification number: G21D3/001 ,  G06F17/5009 ,  G06F2217/34 ,  G06F2217/76 ,  G06F2217/78 ,  G21C17/00 ,  G21C17/017 ,  G21Y2002/204 ,  G21Y2004/40 ,  Y02E30/40 ,  Y10S706/92

Abstract: A system (10) and method (42, 44, 46, 48, 52, 54) for generating an index (38, 132, 40, 134) commensurate with the degree to which a tube array degrades over a period of time due to corrosion in a particular operating environment. A data array (62, 114) is created defining the number of tubes in the tube array, a plurality of time points defining time intervals during which the degradation is to be assessed, and operating conditions that induce corrosion during each time interval. The expected degradation value of the array is computed over each of a plurality of time points using a deterministic failure model (88) having at least one parameter (102, 104, 106) that is assumed constant at each time point. For each time point and at least one parameter, a plurality of values of the parameter (108, 110) that deviate from the assumed constant value, are generated. For each time point, a plurality of degradation values are computed using the deterministic model with each of the plurality of deviated values of the parameter, thereby defining a distribution (34) of degradation values at the time point surrounding the expected degradation value (36, 130) at the time point. An index (38, 132, 40, 134) is generated from the distribution of values, commensurate with the uncertainty at each time point, in the expected degradation value (36, 130) as computed by the deterministic model.

Abstract translation: 一种系统（10）和方法（42,44,46,48,52,54），用于产生与管阵列在一段时间内降级的程度相称的索引（38,132,40,134），这是由于 在特定的操作环境中的腐蚀。 创建数据阵列（62,114），其限定管阵列中的管数，多个时间点，其限定要评估劣化的时间间隔，以及在每个时间间隔期间引起腐蚀的操作条件。 使用确定性故障模型（88）在多个时间点中的每一个上计算阵列的预期劣化值，所述确定性故障模型具有在每个时间点假设为恒定的至少一个参数（102,104,106）。 对于每个时间点和至少一个参数，生成偏离假定常数值的参数（108,110）的多个值。 对于每个时间点，使用具有参数的多个偏差值中的每一个的确定性模型来计算多个劣化值，从而定义在围绕预期劣化值（36,38）的时间点处的劣化值的分布（34） 130）。 根据由确定性模型计算的预期劣化值（36,130），从与每个时间点的不确定度相称的值分布产生指数（38,132,40,134）。

公开(公告)号：WO1994016447A1

公开(公告)日：1994-07-21

申请号：PCT/US1993008682

申请日：1993-09-15

Applicant: COMBUSTION ENGINEERING, INC.

Inventor： COMBUSTION ENGINEERING, INC. ,  CHIANG, Chia, Chi

IPC: G21C13/028

CPC classification number: G21C13/028 ,  Y02E30/40

Abstract: A permanent annular ring seal and refueling deck assembly providing an effective water barrier over the annular space between a nuclear reactor vessel flange and a surrounding annular ledge includes annular platform, a support and a joint seal. The joint seal has an upper cylindrical section and a lower flexible coil or arcuate shaped section which provides for greater accommodation of vessel radial, axial and rotational movements, and reduces joint stress.

Abstract translation: 在核反应堆容器凸缘和周围的环形凸缘之间的环形空间上提供有效的水屏障的永久环形环密封和加油甲板组件包括环形平台，支撑件和接头密封件。 接头密封件具有上部圆柱形部分和下部柔性线圈或弓形部分，其提供容器的径向，轴向和旋转运动的更大的适应性，并且减小关节应力。