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    • 27. 发明申请
    • LIGHT WATER REACTOR, ESPECIALLY A BOILING WATER REACTOR, AND PROCESS TO REGULATE THE OUTPUT OF A LIGHT WATER REACTOR
    • 轻水反应堆,尤其是对于调节核电轻水反应堆BWR AND METHOD
    • WO1998024093A1
    • 1998-06-04
    • PCT/EP1996005218
    • 1996-11-26
    • SIEMENS AKTIENGESELLSCHAFTMESETH, Johann
    • SIEMENS AKTIENGESELLSCHAFT
    • G21C07/32
    • G21C7/32G21C1/084G21C2001/088G21Y2002/205G21Y2004/302Y02E30/31Y02E30/39
    • The invention relates to a light water reactor (1), notably a boiling water reactor, comprising a reactor vessel (2), reactor core (3) and shell (4) enclosing the core (3). The shell (4) is situated inside the reactor vessel (2) and has least one inlet (5) and one outlet (6) for core coolant (7), said outlet (6) having a specific flow area (9). This flow area (9) can be adjusted by a throttling element (10) to regulate the flow rate of the core coolant. Modification of the flow area (9) permits a varying regulation of reactor output independently of the regulation of reactor output achieved by the insertion of neutron-absorbent control rods. The invention further relates to a process for the regulation of reactor output as well as for the rapid reduction in the output of a boiling water reactor (1).
    • 本发明涉及一种轻水反应堆(1),特别是沸水反应器包括反应器压力容器(2),反应器核心(3)和(3)包围所述芯套的反应堆芯(4)。 芯套(4)是所述反应器压力容器(2)内,并具有至少一个入口开口(5)和出口开口(6),用于芯的冷却剂(7),其中,所述出口开口(6)与一个流动横截面(9)关联。 此流动横截面(9)是用于通过节流元件(10)调节所述芯的冷却剂流率可变。 通过改变流动横截面(9)具有的反应器功率的各种各样的控制得以实现,这是独立于中子吸收控制棒的缩回反应堆功率的控制。 本发明还涉及一种用于控制反应器功率和沸水反应堆(1)的快速功率降低。
    • 28. 发明申请
    • REACTOR PROTECTION SYSTEM
    • 反应器保护系统
    • WO1997004463A1
    • 1997-02-06
    • PCT/US1996011521
    • 1996-07-11
    • GENERAL ELECTRIC COMPANY
    • GENERAL ELECTRIC COMPANYGAUBATZ, Donald, Chester
    • G21D03/04
    • G21D3/001G21C17/00G21D3/04G21Y2002/205G21Y2002/207G21Y2002/304G21Y2004/304G21Y2004/401Y02E30/39
    • A reactor protection system having four divisions, with quad redundant sensors for each scram parameter providing input to four independent microprocessor-based electronic chassis. Each electronic chassis acquires the scram parameter data from its own sensor, digitizes the information, and then transmits the sensor reading to the other three electronic chassis via optical fibers. To increase system availability and reduce false scrams, the reactor protection system employs two levels of voting on a need for reactor scram. The electronic chassis perform software divisional data processing, vote 2/3 with spare based upon information from all four sensors, and send the divisional scram signals to the hardware logic panel, which performs a 2/4 division vote on whether or not to initiate a reactor scram. Each chassis makes a divisional scram decision based on data from all sensors. Each division performs independently of the others (asynchronous operation). All communications between the divisions are asynchronous. Each chassis substitutes its own spare sensor reading in the 2/3 vote if a sensor reading from one of the other chassis is faulty or missing. Cross communication of sensor readings allows comparison of four theoretically "identical" values. Automated self-test and diagnostic monitoring, sensor input through output relay logic, virtually eliminate the need for manual surveillance testing.
    • 具有四个部分的反应堆保护系统,四个冗余传感器用于每个冲击参数,为四个独立的基于微处理器的电子底盘提供输入。 每个电子机箱从其自己的传感器获取扰频参数数据,数字化信息,然后通过光纤将传感器读数传输到另外三个电子机箱。 为了提高系统可用性并减少误报,反应堆保护系统采用两级投票来满足反应堆的需要。 电子机箱执行软件分割数据处理,根据所有四个传感器的信息,将备用电路投入2/3,并将分区交叉信号发送到硬件逻辑面板,执行2/4分投票是否启动 反应堆。 每个机箱都根据所有传感器的数据进行分区决策。 每个分区独立执行(异步操作)。 部门之间的所有沟通都是异步的。 如果从其他机箱之一读取的传感器有故障或丢失,则每个机箱以2/3的表决代替其自己的备用传感器读数。 传感器读数的交叉通信可以比较四个理论上“相同”的值。 自动自检和诊断监控,传感器输入通过输出继电器逻辑,几乎无需手动监控测试。
    • 30. 发明申请
    • A METHOD AND A DEVICE FOR EVALUATING THE INTEGRITY OF THE NUCLEAR FUEL IN A NUCLEAR PLANT
    • 用于评估核燃料核燃料的完整性的方法和装置
    • WO99027541A1
    • 1999-06-03
    • PCT/SE1998/002116
    • 1998-11-20
    • G21C17/06G21C17/00G21C17/04G21C17/07
    • G21C17/04G21C17/00G21Y2002/204G21Y2002/205G21Y2002/207G21Y2002/304G21Y2002/502G21Y2004/401
    • The invention concerns a method and a device for evaluating the integrity of the nuclear fuel in a nuclear plant having a reactor (1) enclosing a reactor core formed by a number of fuel cladding members (2) arranged to enclose said nuclear fuel. The value of each of a number of parameters including activity data (4) of the off-gases from the reactor is determined. The value of each of a number of second parameters including chemical data and activity data of the liquid (5) flowing through the reactor is determined. The value of each of a number of operational parameters (6) including at least one of the reactor effects, control rod position, actual fuel type, flow of off-gases, and flow of the liquid flowing through the reactor is determined. The value of the first and second parameters are standardized (7, 8) in relation to the values of said operational parameters. The standardized values and the values of the operational parameters are analysed (9-11) and the integrity of the fuel is estimated based on the analysis. The invention also comprises producing guidelines for the continuing operation of the plant with regard to said estimation.
    • 本发明涉及用于评估核设备中的核燃料的完整性的方法和装置,所述核电厂具有包围反应堆堆的反应堆(1),所述反应堆堆芯由多个包围所述核燃料的燃料包层部件(2)形成。 确定包括来自反应器的废气的活性数据(4)的多个参数中的每一个的值。 确定包括流过反应器的液体(5)的化学数据和活性数据的多个第二参数中的每一个的值。 确定包括反应器效应,控制杆位置,实际燃料类型,废气流和流过反应器的液体流动中的至少一个的多个操作参数(6)中的每一个的值。 第一和第二参数的值相对于所述操作参数的值被标准化(7,8)。 分析了运行参数的标准值和值(9-11),并根据分析估算了燃油的完整性。 本发明还包括关于所述估计的工厂的继续操作的指导。