Mitsubishi Heavy Industries Limited

Mitsubishi Heavy Industries Engineering, Ltd.

Mitsubishi Heavy Industries Thermal Systems, Ltd.

Kyoeisha Chemical Co., Ltd.

Ryo Kamito

Susumu Okino

Yoshiaki Ito

Hideo Suzuki

Nobuyuki Ukai

Hideaki Sakurai

Masayuki Eda

Hiroshi Nakashoji

Shigeru Yoshioka

Tatsuo Ishiguro

Noriaki Senba

Masashi Kiyosawa

Wataru Matsubara

Naoya Miyoshi

Kazuhisa Takeuchi

Takeo Shinoda

Yoshie Togano

Masahiko Nagai

Naohiko Ishibashi

Katsunori Matsui

Nobuki Oka

Hyota Abe

Taichi Yoshii

Norihisa Horaguchi

Shigehiro Sugiyama

Takayoshi Hori

Shinpei Kaneda

Sho Yokogawa

Yoshihisa Katsunishi

Takahiro Masui

Atsuyoshi Ueda

An a purge device that includes an air purge pipe connected to a condenser and configured to extract a mixed gas containing a refrigerant gas and air from the condenser; a separation film provided to the air purge pipe and configured to separate, by a pressure difference, air from the mixed gas extracted by the air purge pipe; an exhaust pipe configured to externally guide a gas containing air separated by the separation film; a first valve provided to the exhaust pipe; a vacuum pump provided downstream of the first valve in the exhaust pipe and configured to externally discharge a gas present inside the exhaust pipe; and a control unit, the control unit activates the vacuum pump, opens the first valve, then closes the first valve to stop permeation of air caused by a pressure difference when detecting that a predetermined amount of air has permeated the separation film.

Air purge device

Disclosed is a system for producing magnesium hydroxide including: a generation unit; and a recovery unit connected to the generation unit, wherein the generation unit has a reaction tank in which a calcium hydroxide slurry is added to water to be treated containing magnesium ions to crystallize magnesium hydroxide and to obtain a reaction slurry containing particles of magnesium hydroxide, and a sedimentation tank in which the reaction slurry is reserved to sediment the particles and to separate the reaction slurry into a separation slurry containing the particles at a high concentration and a separation liquid containing the particles at a low concentration, and wherein, in the recovery unit, an alkaline aqueous solution is added to the separation liquid to crystallize magnesium hydroxide and to obtain the reaction slurry and then the reaction slurry is reserved to sediment the particles and to recover the sedimented particles.

System for producing magnesium hydroxide

A desalination performance restoration agent for a cellulose acetate membrane contains: a solvent; and a modified polyvinyl alcohol mixed in the solvent. The modified polyvinyl alcohol has an acetyl group structure in at least part of polyvinyl alcohol.

Desalination performance restoration agent for cellulose acetate membrane and desalination performance restoration method for cellulose acetate membrane

A plant-monitoring system includes: at least three detection elements, the detection elements being at least one type of detection element for monitoring a subject being monitored; a detection network configured by disposing the at least three detection elements in a plant; a storage unit that receives detection data from each of the detection elements to record the detection data as recorded data; and a processing computing unit. The processing computing unit receives the detection data from each of the detection elements, determines presence or absence of a fault by comparing the detection data with the recorded data, and in a case where occurrence of a fault is recognized, identifies a place of occurrence of the fault based on the detection data, and transmits the result of the place of occurrence of the fault to a predetermined incident response team.

Plant-monitoring system and monitoring method

A water treatment device is provided with a separation membrane device having a separation membrane for concentrating dissolved components and dispersed components from water to be treated and obtaining permeated water; a first deposit detecting unit provided in a non-permeated water branch line branched from a non-permeated water line for discharging non-permeated water in which dissolved components and dispersed components have been concentrated, using part of the non-permeated water that has branched off as a detection liquid, and having a first separation membrane for detection in which the detection liquid is separated into permeated water for detection and non-permeated water for detection; and first flow rate measuring devices for separated liquid for detection that measure the flow rates of one or both of the permeated water for detection and the non-permeated water for detection separated by the first separation membrane for detection.

Water treatment device and operating method for water treatment device

A scale detection device of a concentrating device comprises: a reverse osmosis membrane devicethat is a concentrating device including a reverse osmosis membrane, which is a filtering membrane for concentrating salt in a water to be treated, containing at least calcium sulfate to obtain reclaimed water; and a scale detection unitdisposed in a branched line Lbranched from a concentrated water line Ldischarging concentrated waterhaving a high concentration of salt, the scale detection unit further concentrating the salt in the concentrated waterto obtain reclaimed water for detection, and including a detection membranedetecting the absence or presence of scale component deposition in the concentrated water

Scale detection device and method for concentrating device, and water reclamation processing treatment system

Growing community of inventors

Tokyo, Japan

Ryo Kamito