公开(公告)号：US20160299023A1

公开(公告)日：2016-10-13

申请号：US15075485

申请日：2016-03-21

Applicant: HITACHI, LTD.

Inventor： Ryo KUWANA ,  Daisuke SHINMA ,  Atsushi FUSHIMI ,  Hideki HANAMI ,  Isao HARA

IPC: G01L7/08

CPC classification number: G01L7/08 ,  G01L13/025 ,  G01L19/0645

Abstract: Provided is a pressure transmitter device including: a pressure receiving diaphragm in contact with a measuring fluid; a fill fluid, in contact with an opposite side of the pressure receiving diaphragm to the other side in contact with the measuring fluid, for transferring a pressure received by the pressure receiving diaphragm from the measuring fluid to a sensor disposed at a position apart from the pressure receiving diaphragm; a hydraulic path filled with the fill fluid and connecting the pressure receiving diaphragm and the sensor; and an output circuit for measuring and outputting an absolute pressure of the measuring fluid or a differential pressure between measuring fluids based on the pressure received by the sensor, where a hydrocarbon absorbing material for absorbing hydrocarbon and a hydrogen occlusion material for occluding hydrogen are provided inside the hydraulic path.

Abstract translation: 提供一种压力传感器装置，包括：与测量流体接触的压力接收膜; 与所述压力接收膜片的与所述测量流体接触的另一侧的相对侧接触的填充流体，用于将由所述压力接收膜片接收的压力从所述测量流体传递到设置在离开所述测量流体的位置处的传感器 受压隔膜; 填充有填充流体并连接压力接收膜片和传感器的液压路径; 以及输出电路，其用于测量和输出测量流体的绝对压力或测量流体之间的压差，基于由传感器接收的压力，其中用于吸收烃的吸收烃和用于吸藏氢的吸氢材料设置在内部 液压路径。

公开(公告)号：US20150107365A1

公开(公告)日：2015-04-23

申请号：US14516115

申请日：2014-10-16

Applicant: Hitachi, Ltd.

Inventor： Setsuo ARITA ,  Ryo KUWANA ,  Atsushi BABA ,  Atsushi FUSHIMI ,  Daisuke SHINMA ,  Hideki HANAMI ,  Isao HARA ,  Takashi ITOU

IPC: G01L7/08

CPC classification number: G01L7/088 ,  G01L7/08 ,  G01L13/026 ,  G01L19/0645

Abstract: A pressure transmitter including tube-like pressure introducing pipes, a sealed-in liquid, the inside of the pressure introducing pipes being filled with the sealed-in liquid, pressure receiving diaphragms for receiving the pressures of measurement fluids, the pressure receiving diaphragms being set up in a state where one-side apertures in the pressure introducing pipes are blocked by the pressure receiving diaphragms, and a pressure sensor that is set up in common to the other-side apertures in the pressure introducing pipes in a state where the pressure sensor is exposed to the sealed-in liquid, wherein the sealed-in liquid is silicon oil containing phenyl groups, the pressure transmitter further including a hydrogen-storage material that is set up inside the pressure introducing pipes.

Abstract translation: 一种压力变送器，包括管状压力引入管，密封液体，压力导入管内部填充有密封液体，受压隔膜用于接收测量流体的压力，压力接收膜片被设定 在压力导入管中的一侧孔被压力接收膜片阻挡的状态下，在压力传感器的状态下与压力导入管的另一侧孔共同设置的压力传感器 暴露于密封液体中，其中密封的液体是含有苯基的硅油，压力变送器还包括设置在压力引入管内的储氢材料。

公开(公告)号：US20150135842A1

公开(公告)日：2015-05-21

申请号：US14532456

申请日：2014-11-04

Applicant: HITACHI, LTD.

Inventor： Ryo KUWANA ,  Atsushi FUSHIMI ,  Daisuke SHINMA ,  Hideki HANAMI ,  Isao HARA

IPC: G01L7/08

CPC classification number: G01L7/08 ,  G01L13/026 ,  G01L19/06

Abstract: In a pressure and pressure difference transmitter that seals a sealing liquid for transmitting the pressure inside a pressure leading passage, the pressure and pressure difference transmitter forming a space between a diaphragm and a main body side wall surface, including the pressure leading passage connected to the main body side wall surface, and transmitting the pressure received by the diaphragm to a sensor through the sealing liquid sealed in the space and the pressure leading passage, a hydrogen occluding material for occluding hydrogen atoms of the sealing liquid is disposed at least in the sealing liquid, the main body side wall surface, or a part of a portion from the main body side wall surface to the sensor, with the hydrogen occluding material being formed with an uneven shape on the surface or being attached with a granular hydrogen occluding material.

Abstract translation: 在压力传感器和压力差传感器中，密封用于传递压力导向通道内的压力的密封液体，所述压力差压变送器在隔膜与主体侧壁面之间形成空间，包括连接到 主体侧壁表面，并且通过密封在空间和压力导向通道中的密封液将由隔膜接收的压力传递到传感器，用于封闭密封液体氢原子的吸留氢材料至少设置在密封件 液体，主体侧壁表面或从主体侧壁表面到传感器的一部分的一部分，其中吸氢材料在表面上形成为不均匀的形状，或者附着有颗粒状吸氢材料。

公开(公告)号：US20150107364A1

公开(公告)日：2015-04-23

申请号：US14515731

申请日：2014-10-16

Applicant: Hitachi, Ltd.

Inventor： Ryo KUWANA ,  Setsuo ARITA ,  Atsushi BABA ,  Atsushi FUSHIMI ,  Daisuke SHINMA ,  Hideki HANAMI ,  Isao HARA ,  Takashi ITOU

IPC: G01L7/08

CPC classification number: G01L7/088 ,  G01L7/082 ,  G01L13/026 ,  G01L19/0645

Abstract: A pressure transmitter including tube-like pressure introducing pipes, a sealed-in liquid, the inside of the pressure introducing pipes being filled with the sealed-in liquid, pressure receiving diaphragms for receiving the pressures of measurement fluids, the pressure receiving diaphragms being set up in a state where one-side apertures in the pressure introducing pipes are blocked by the pressure receiving diaphragms, a pressure sensor that is set up in common to the other-side apertures in the pressure introducing pipes in a state where the pressure sensor is exposed to the sealed-in liquid, and hydrogen-permeation prevention layers that are set up on the pressure receiving diaphragms, wherein the pressure transmitter further includes a hydrogen-storage material that is set up inside the pressure introducing pipes.

Abstract translation: 一种压力变送器，包括管状压力引入管，密封液体，压力导入管内部填充有密封液体，受压隔膜用于接收测量流体的压力，压力接收膜片被设定 在压力导入管中的一侧孔被受压隔膜阻挡的状态下，在压力传感器为压力传感器的状态下与压力导入管的其他侧孔共同设置的压力传感器 暴露于密封的液体中，以及设置在受压隔膜上的防渗透层，其中压力变送器还包括设置在压力引入管内的储氢材料。

公开(公告)号：US20140096613A1

公开(公告)日：2014-04-10

申请号：US14024811

申请日：2013-09-12

Applicant: Hitachi, Ltd.

Inventor： Ryo KUWANA ,  Atsushi BABA ,  Atsushi FUSHIMI ,  Daisuke SHINMA ,  Hideki HANAMI ,  Isao HARA ,  TAKASHI ITO

IPC: G01L13/02 ,  G01L7/08

CPC classification number: G01L13/025 ,  G01L7/08 ,  G01L13/026 ,  G01L19/0636 ,  G01L19/0645

Abstract: Hydrogen which has entered into a pressure/differential pressure transmitter from external or internally generated hydrogen and hydrocarbons are converted to air bubbles within pressure guide paths. As a result, the indicated value drifts and an accurate numerical value is not output. A pressure/differential pressure transmitter includes a space formed between a diaphragm and a main body side wall face, pressure guide paths connected to the main body side wall face, a sealed liquid sealed in the space and the pressure guide paths to transmit a pressure received by the diaphragm to a sensor, and a hydrogen absorption material provided at least in the sealed liquid, on the main body side wall face, or in a part of a path between the main body side wall face and the sensor to absorb hydrogen atoms in the sealed liquid.

Abstract translation: 从外部或内部产生的氢气和烃进入压力/差压变送器的氢气被转化为压力引导通道内的气泡。 结果，指示值漂移并且不输出精确的数值。 压力/压差变送器包括在隔膜和主体侧壁面之间形成的空间，连接到主体侧壁面的压力引导路径，密封在该空间中的密封液体和压力引导路径，以传递接收到的压力 通过隔膜到传感器，以及至少设置在密封液体中的主体侧壁面上或在主体侧壁面和传感器之间的路径的一部分中的吸氢材料，以吸收氢原子 密封液体。