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    • 1. 发明专利
      JP2007205912A Water level measurement device of differential pressure type 有权
    • Water level measurement device of differential pressure type
    • 差压式水位测量装置
    • JP2007205912A
    • 2007-08-16
    • JP2006025557
    • 2006-02-02
    • Hitachi Ltd , 株式会社日立製作所
    • MUTO KATSUTOSHI , ISHII KUNIO
    • G01F23/18
    • PROBLEM TO BE SOLVED: To provide a water level measurement equipment of a differential pressure type capable of continuing operation with the other correct system even if an accident such as instrument trouble is caused, by eliminating the deviation between the regular system and the emergency system in the constitution of providing on either of regular system and emergency system with a level switch. SOLUTION: The water level measurement equipment of the differential pressure type comprises: vapor phase detection piping 102; liquid phase detection piping 103; a vapor phase side diaphragm 114; the liquid phase side diaphragm 115; a regular differential pressure detection system of the differential pressure detector 120 for detecting the water level of drain water level of a vessel 101 from the difference of the vapor phase side pressure and the liquid phase side pressure; the emergency differential pressure detection system of same constitution; and the level switch 130 for alarming high water level outputting connected by the upper detection piping 121 and the lower detection piping 122 between the piping 102 mutually connected with the vapor phase detection piping, and piping 103 mutually connected with the liquid phase detection piping, wherein the length from the vapor discharge port to the pressure receiving surface of each vapor phase side diaphragm 114 and the length from the vapor discharge port to the pressure receiving surface of each vapor phase side diaphragm 114 and from the liquid discharge port to pressure receiving surface of each liquid side diaphragm 115 are made set equal. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题：为了提供能够与其他正确系统连续操作的差压水平测量设备，即使发生诸如仪器故障的事故，通过消除常规系统和 应急系统在常规系统和应急系统中提供等级切换。

      解决方案：差压式的水位测量设备包括：气相检测管道102; 液相检测管道103; 气相侧膜片114; 液相侧膜片115; 差压检测器120的常规差压检测系统，用于根据气相侧压力和液相侧压力的差来检测容器101的排水水位的水位; 相同构成的紧急差压检测系统; 以及用于警报在与气相检测管道相互连接的管道102之间的上部检测管道121和下部检测管道122连接的高水位输出的液位开关130以及与液相检测管道相互连接的管道103，其中 从蒸汽排出口到每个气相侧隔膜114的受压面的长度以及从蒸气排出口到各气相侧隔膜114的受压面的长度，以及从液体排出口到压力接收面的长度 使每个液体侧膜片115设定为相等。 版权所有（C）2007，JPO＆INPIT

    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
    • 2. 发明专利
      JP2000275390A SHIELD FOR THERMOMETER SHEATH GUIDE TUBE 失效
    • SHIELD FOR THERMOMETER SHEATH GUIDE TUBE
    • JP2000275390A
    • 2000-10-06
    • JP7915099
    • 1999-03-24
    • HITACHI LTD
    • MUTO KATSUTOSHI , ISHII KUNIO , MESHIDA MAKOTO
    • G21D1/00 , G21C13/036 , G21F3/00
    • PROBLEM TO BE SOLVED: To improve the effect of radiation shielding and the performance on the maintenance and inspections of a thermometer with a simple and compact structure of a shield, by connecting a shield whose inner diameter satisfies the performance of the insertion of a thermometer sheath and the effect of radiation shielding and which has the length required for shielding and is shaped like a pipe to a straight part at a tip of a guide tube. SOLUTION: A thermometer sheath guide tube 4 guiding a thermometer sheath 5 of a thermometer shaped like a sheath that measures the temperature of equipment and piping 7 placed in a high-level radiation area 1 to a low-level radiation area 2 is bored through a straight pipe into a shielding wall 3. A shield 9 for the sheath guide tube 4 is connected to a tip of the tube 4 in the bored part of the shielding wall 3 and is buried in it. The gap between the surface of the thermometer sheath 5 and the inner diameter of the shield 9, where an error in the manufacturing of the thermometer sheath 5 is taken into account, is set to satisfy the performance of insertion and extraction of the thermometer sheath 5 and the effect of intercepting the radiation from the high-level radiation area 1. In this way, the length of the sheath guide tube 4 is shortened and the bent part of it is lessened because the shielding wall 3 is pierced by the straight pipe.
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
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