Mitsubishi Heavy Industries Compressor Corporation

Mitsubishi Heavy Industries Limited

Mitsubishi Heavy Industries Engineering, Ltd.

National Institute of Advanced Industrial Science and Technology

S.t. Japan Inc.

Yosuke Nakagawa

Naoto Yonemura

Naohiko Ishibashi

Tatsuya Tsujiuchi

Kazuhiro Takeda

Daisuke Shimada

Kazuhiro Jahami

Hiroyuki Miyata

Naoki Mori

Yasushi Mori

Haruaki Hirayama

Takao Nakagawa

Tomoaki Takeda

Masaaki Abe

Kazumi Inagaki

Kazuko Takeshita

Susumu Kouno

Koichi Chiba

Nobuyoshi Kitagawa

Susumu Okino

Hiromitsu Nagayasu

Nobuyuki Ukai

Shinji Nakamura

Shinichi Okamoto

Keiichi Nakagawa

Keiji Fujikawa

Akira Noma

Kazuhiro Kawai

Haruka Adachi

Yuuji Nakajima

Shin-ichiro Fujii

Hiroyuki Takaki

Kouetsu Shizukuishi

Takashi Ike

Shin-ichi Miyashita

Shin-Ichiro Fujii

Akiko Takatsu

A waste treatment system, includes: at least one reformer for hydrolyzing waste; a microbial reactor for microbially degrading a reformed material containing at least a solid of the waste hydrolyzed by the at least one reformer; a microbial reaction detection device for detecting a state of degradation of the reformed material in the microbial reactor; and an adjustment device for adjusting amount and timing of supply of the reformed material to the microbial reactor, based on a detected value of the microbial reaction detection device.

Waste treatment system and waste treatment method

A control device configured to control an inflow adjusting unit that quantitatively adjusts an inflow of a gas into a compressor and to control a valve provided in a second flow passage branching from a first flow passage from the compressor to a compressed gas supply destination includes: a command calculating unit that is configured to calculate a command value for at least any one of the inflow adjusting unit and the valve; and a correction value calculating unit that is configured to calculate a correction value with respect to a command value for at least any one of the inflow adjusting unit and the valve.

Control device, gas compressing system, control method, and program

A COrecovery device includes: an absorption tower configured to bring an emission gas including COin contact with an absorbent solution, to remove the COfrom the emission gas, and to thereby generate a rich solution corresponding to the absorbent solution having absorbed the CO; a regeneration tower configured to regenerate the absorbent solution by removing the COfrom the rich solution; a heat exchanger configured to carry out heat exchange between the rich solution and the absorbent solution which is higher in temperature than the rich solution and from which the COis removed; an absorbent-solution delivery pipe configured to deliver the absorbent solution subjected to the heat exchange in the heat exchanger to the absorption tower; and a bypass pipe configured to deliver the rich solution before the heat exchange to the absorbent-solution delivery pipe.

CO2 recovery device and CO2 recovery method

A booster system includes: a cooling temperature regulating unit configured to regulate a temperature of an intermediate supercritical pressure liquid cooled and generated by a main cooling unit on upstream of a pump unit according to a flow rate of a supplied cooling medium; and a pressure detection unit configured to detect inlet pressure of the intermediate supercritical pressure liquid on an inlet side of the pump unit and detect outlet pressure of a target supercritical fluid on an outlet side of the pump unit. The cooling temperature regulating unit controls the flow rate of the cooling medium based on a pressure difference between the inlet pressure and the outlet pressure or a pressure ratio between the inlet pressure and the outlet pressure.

Booster system

In order to reduce the calculation cost of industrial plant evaluation, an industrial plant evaluation devicecomprises: a reception unitconfigured to receive an actual machine manipulated variable in process control of an industrial plant and an actual machine process variable to be controlled by the process control; an estimation unitconfigured to determine a process variable as an estimated process variable by using a process model defining a mathematical relationship between a manipulated variable and a process variable in the process control, the process variable as the estimated process variable being obtained by substituting the actual machine manipulated variable for the manipulated variable in the process model; and a comparison unitconfigured to compare the estimated process variable and the actual machine process variable with each other.

Industrial plant evaluation device and industrial plant evaluation method

A plant evaluation apparatus includes: a first computation unit configured to compute a first estimated value of a plant state quantity by using a steady-state model; a first determination unit configured to compute a second estimated value of the plant state quantity by assigning an equipment parameter in a normal state to an equipment parameter of a non-steady-state model; a second computation unit configured to compute a third estimated value of the plant state quantity by using the steady-state model in a case where the first determination unit determines that an error between the second estimated value and an actually measured value is equal to or more than a threshold value; and a second determination unit configured to determine whether or not a difference between the equipment parameter in the normal state and the equipment parameter in an abnormal state is equal to or more than a predetermined value.

Plant evaluation device and plant evaluation method

A multi-stage compressor system is a system of a multi-stage compressor in which compressors are connected in series in a plurality of stages includes a control unit. The control unit determines whether a malfunction is present in the system by comparing a suction flow rate of a first-stage compressor measured by a first sensor with a downstream flow rate from an outlet of the multi-stage compressor measured by a second sensor.

Multi-stage compressor system, control device, malfunction determination method, and program

With regard to a load running system that comprises a plurality of compressors that compress a fuel gas and supply the compressed fuel gas to a load apparatus, this compressor control device comprises: a feedforward control signal generation unit that, on the basis of a value that is found by dividing the total load of the load apparatus by the number of running compressors, generates a first control signal that is for controlling the amount of fuel gas supplied by the compressors; and a control unit that, on the basis of the first control signal, controls the amount of fuel gas supplied by the compressors.

Compressor control device, compressor control system, and compressor control method

A COrecovery method includes: heating a CO-absorbing solution that has absorbed COfrom a gas, releasing the COfrom the CO-absorbing solution, and regenerating the CO-absorbing solution, and at least one of: controlling a difference between an actual measured value and a target value of a recovery rate of the COto be within a predetermined range; and controlling a difference between an actual measured value and a target value of a recovery amount of COto be within a predetermined range, and controlling the COrecovery rate through a proportional calculation and an integration calculation based on the difference between the actual measured value and the target value of the COrecovery rate.

COrecovery unit and COrecovery method

A control device () that controls a fuel gas supply system () that comprises: a compressor () that supplies compressed fuel gas to a load apparatus (); an inflow amount regulating means () that regulates the amount of fuel gas that flows into the compressor (); and an anti-surge valve () that is for returning to an inlet side of the compressor () fuel gas that is discharged from the compressor (). The control device () comprises: a main pressure-control unit () that controls the inflow amount regulating means () and the anti-surge valve () on the basis of a feedforward control value that is generated on the basis of the load of the load apparatus () and of a prescribed conversion process, and on the basis of a feedback control value that is generated on the basis of the deviation between a set value and a measured value for the discharge pressure of the compressor (); and an emergency pressure-control unit () that calculates a bias-added control value that is found by adding a predetermined bias value to an anti-surge valve control value that is for controlling the anti-surge valve () and that is calculated on the basis of at least one of the feedforward control value and the feedback control value, and that, on the basis of the occurrence of load variations that are at or above a prescribed value, switches between the anti-surge control value and the bias-added control value and controls the anti-surge valve ().

Control device and control method for a fuel gas supply system

A multi-stage compression system in which gases compressed by a pair of first-stage compressors are compressed by subsequent compressors connected to the first-stage compressors in series includes a valve control unit configured to output open/close signals for opening/closing valves for adjusting flow rates of gases flowing into the first-stage compressors provided at inlet sides of the first-stage compressors. The valve control unit outputs an open/close signal having a difference less than or equal to a predetermined value with respect to a degree of opening of the valve before malfunction determination as the open/close signal until a malfunction is eliminated after the determination of the malfunction in which one of the valves does not have a degree of opening according to the open/close signal.

Multi-stage compression system, control device, control method, and program

A control device that controls a fuel gas supply system that has: a compressor that supplies compressed fuel gas to a load apparatus; an inflow amount regulating means that regulates the amount of fuel gas that flows into the compressor; an anti-surge valve that is for returning to an inlet side of the compressor fuel gas that is discharged from the compressor; and an inlet pressure-regulating valve that regulates the pressure of fuel gas supplied toward the inflow amount regulating means. The control device includes: a main pressure-regulating unit that controls the inflow amount regulating means and the anti-surge valve using a first feedforward control value that is generated on the basis of the load of the load apparatus and of a first conversion process and using a feedback control value that is generated on the basis of the deviation between a set value and a measured value for the discharge pressure of the compressor; and an inlet pressure-regulating unit that controls the inlet pressure-regulating valve using a second feedforward control value that is generated on the basis of the load of the load apparatus and of a second conversion process.

Control device and control method

A COrecovery unit includes a COabsorber in which a gas containing COcontacts a CO-absorbing solution that absorbs the COin the gas; a CO-absorbing solution regenerator that heats the CO-absorbing solution that has absorbed the CO, releases the COfrom the CO-absorbing solution, and regenerates the CO-absorbing solution; and at least one of a COrecovery rate controller that controls a difference between an actual measured value and a target value of a recovery rate of the COto be within a predetermined range; and a COrecovery amount controller that controls a difference between an actual measured value and a target value of a recovery amount of COto be within a predetermined range.

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A compressor control device includes an inlet guide vane opening degree control unit configured to control an opening degree of an inlet guide vane. The inlet guide vane opening degree control unit includes an inlet guide vane opening degree command value calculation unit configured to calculate an inlet guide vane opening degree command value based on an outlet pressure detection value and a plurality of inlet guide vane opening degree correction units each configured to correct the inlet guide vane opening degree command value based on the post-merger pressure detection value and a corresponding inlet flow rate detection value for each of a plurality of upstream-most compressor bodies.

Compressor control device and control method therefor, and compressor system

A COrecovery unit includes a CO-absorber that causes a gas containing COto contact a CO-absorbing solution and that causes the COin the gas to be absorbed into the CO-absorbing solution; a CO-regenerator that heats the CO-absorbing solution, releases the COfrom the CO-absorbing solution, and regenerates the CO-absorbing solution; and a COrecovery amount controller that: calculates a computed target value of a COrecovery amount and a computed target value of a COrecovery rate based on a set value of the COrecovery rate, actual measured values of COconcentration, gas flow rate, and temperature of the gas, and calculates a maximum value of the COrecovery amount in the CO-absorber and a maximum value of the COrecovery amount in the CO-regenerator.

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Tokyo, Japan

Yosuke Nakagawa