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1. 发明申请

US20120255353A1 Fluid Level Measurement Instrument by Using Solenoid Coil 审中-公开
标题翻译：使用电磁线圈的液位测量仪
公开(公告)号：US20120255353A1
公开(公告)日：2012-10-11
申请号：US13438369
申请日：2012-04-03
申请人： Tatsuro Kozaki , Hiroshi Yatabe , Isao Hara , Toshiro Akahira
发明人： Tatsuro Kozaki , Hiroshi Yatabe , Isao Hara , Toshiro Akahira
IPC分类号： G01F23/30
CPC分类号： G01F23/72 , G01F23/0038 , G01F25/0061
摘要： To achieve a fluid level measurement instrument requiring no detecting pipe that can accurately measure over a long period of time a fluid level in a tank for storing therein fluid without having to use a detecting pipe for sampling the fluid from the tank. A balance tube 41 has no detecting pipes and a solenoid coil 45 is wound around an outside of the balance tube 41. A float 46 containing therein a magnetic material 47 is disposed inside the solenoid coil 45. A cover 59 formed, for example, of metal covers an outer surface of the float 46 to prevent entry of fluid and hydrogen from outside. The float 46 moves according to a fluid level in the balance tube 41, which results also in inductance of the solenoid coil 45 being changed. Measuring the inductance of the solenoid coil 45 allows the fluid level of the balance tube 41 to be measured without having to use the detecting pipe.
摘要翻译：为了实现不需要检测管的液位测量仪器，可以在长时间内精确地测量用于储存流体的罐中的液位，而不必使用用于从罐中取样流体的检测管。平衡管41没有检测管，螺线管线圈45缠绕在平衡管41的外侧。在螺线管线圈45的内侧设置有包含磁性材料47的浮子46.例如，金属覆盖浮子46的外表面以防止流体和氢气从外部进入。浮子46根据平衡管41中的液位移动，这也导致螺线管线圈45的电感改变。测量螺线管线圈45的电感允许平衡管41的液位测量而不必使用检测管。

2. 发明授权

US08397679B2 Liquid level control system 有权
标题翻译：液位控制系统
公开(公告)号：US08397679B2
公开(公告)日：2013-03-19
申请号：US12618008
申请日：2009-11-13
申请人： Tatsuro Kozaki
发明人： Tatsuro Kozaki
IPC分类号： F22B37/46
CPC分类号： F22B37/78 , F22B37/261 , F22D5/30
摘要： A water level control system for enhancing the controllability of the level of water retained in a steam drum. A water level control section of the system determines the volume of retained water in a steam-water separator from a detected steam flow rate signal by using a function operator and a first order lag circuit, determines a signal representing the mass flow rate balance of water in the steam-water separator by differentiating the volume of retained water with respect to time with a differentiator, generates a compensated signal by adding the signal to the difference between a detected feed water flow rate signal and the detected steam flow rate signal, and properly compensates a valve area demand for a feed water flow control valve.
摘要翻译：一种水位控制系统，用于增强保持在蒸汽鼓中的水位的可控性。系统的水位控制部分通过使用功能操作器和一阶滞后电路，从检测到的蒸汽流量信号中确定蒸汽 - 水分离器中的保留水的体积，确定表示水的质量流量平衡的信号在蒸汽 - 水分离器中，通过用微分器将保留水的体积相对于时间分离，通过将信号加到检测到的给水流量信号与检测到的蒸汽流量信号之间的差异上，并且适当地产生补偿信号补偿给水流量控制阀的阀面积需求。

3. 发明申请

US20100126433A1 LIQUID LEVEL CONTROL SYSTEM 有权
标题翻译：液位控制系统
公开(公告)号：US20100126433A1
公开(公告)日：2010-05-27
申请号：US12618008
申请日：2009-11-13
申请人： Tatsuro Kozaki
发明人： Tatsuro Kozaki
IPC分类号： F22D5/26
CPC分类号： F22B37/78 , F22B37/261 , F22D5/30
摘要： A water level control system for enhancing the controllability of the level of water retained in a steam drum. A water level control section of the system determines the volume of retained water in a steam-water separator from a detected steam flow rate signal by using a function operator and a first order lag circuit, determines a signal representing the mass flow rate balance of water in the steam-water separator by differentiating the volume of retained water with respect to time with a differentiator, generates a compensated signal by adding the signal to the difference between a detected feed water flow rate signal and the detected steam flow rate signal, and properly compensates a valve area demand for a feed water flow control valve.
摘要翻译：一种水位控制系统，用于增强保持在蒸汽鼓中的水位的可控性。系统的水位控制部分通过使用功能操作器和一阶滞后电路，从检测到的蒸汽流量信号中确定蒸汽 - 水分离器中的保留水的体积，确定表示水的质量流量平衡的信号在蒸汽 - 水分离器中，通过用微分器将保留水的体积相对于时间分离，通过将信号加到检测到的给水流量信号与检测到的蒸汽流量信号之间的差异上，并且适当地产生补偿信号补偿给水流量控制阀的阀面积需求。

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