Mitsubishi Heavy Industries Thermal Systems, Ltd.

Mitsubishi Heavy Industries Limited

Mitsubishi Power, Ltd.

Mitsubishi Heavy Industries Machinery Systems, Ltd.

Tokyo Electric Power Company Holdings, Inc.

Koki Tateishi

Satoshi Nikaido

Minoru Matsuo

Toshiaki Ouchi

Yusuke Hazui

Shinichi Yoshioka

Takaharu Hiroe

Masumi Nomura

Ryuji Takenaka

Koshiro Fukumoto

Akira Ogino

Yutaka Takenaka

Ichiro Saito

Kenji Ueda

Masahiro Kimura

Satoru Tanaka

Satoshi Hada

Kazunari Ide

Shingo Ito

Tatsuya Sakai

Hiroshi Ishibuchi

Yusuke Sano

Yoshie Togano

Kazuhiko Kamo

Takumi Fujita

Hideki Mizutani

Koshi Tanimoto

Naoki Suda

Motoshi Takasu

Makoto Tanaka

Takaaki Miura

Tadakuni Nishio

Hirotaka Hanasaki

Hironao Nagai

Yasushi Nishijima

A welding control device includes an actual position determination part configured to determine an actual position of the position control target on the basis of a weld characteristic amount detected from a captured image captured so as to include at least the position control target, the welding characteristic amount including at least one of a wire position of the weld wire or an electrode position of the electrode; a target position determination part configured to determine a target position being a target of the actual position corresponding to a weld condition for welding the weld target; and a position control part configured to execute a position control of the position control target to bring the actual position to the target position.

Welding control device, welding control method, and welding control program

The corrugated cardboard sheet manufacturing system including a production state information acquisition device; a control value information acquisition device for acquiring control value information of a control element of a corrugated cardboard sheet manufacturing apparatus exerting an influence on the warp of a corrugated cardboard sheet; a warp information acquisition device for acquiring information of a warp amount of the corrugated cardboard sheet; a storage device for storing a performance data set including at least production state information, the control value information, and the warp information; a pre-control table storing a standard control value of the control element set in accordance with a production state; a correction table for correcting the standard control value to set an initial control value; an update device for updating the correction table by reflecting the performance data set; and control device for performing feedforward control of the control element using the initial control value.

Corrugated cardboard sheet manufacturing system

A cardboard sheet manufacturing system includes an information editing unit storing production state information, operation state information, and warping state information as acquisition information in a storage unit, the information editing unit deleting, in a case where the stored acquisition information includes prescribed information to be deleted, the information to be deleted from the storage unit and outputting the acquisition information stored in the storage unit as editing information. The system also includes an editing information storage unit storing the editing information output from the information editing unit, a prediction model calculation unit calculating a prediction model of the warping state based on the editing information stored in the editing information storage unit; and a control table update unit updating a target value of a control value of a control element in the cardboard sheet manufacturing apparatus, based on the prediction model.

Method for manufacturing cardboard sheet using prediction model of sheet warpage with deletion of prescribed information

A valve opening degree determination device includes an object operating state acquisition unit configured to acquire an object operating state which is an operating state of a gas turbine before control, and a valve opening degree calculation unit configured to calculate the valve opening degree such that a disk cavity temperature after control is equal to or lower than a target temperature, based on the object operating state. The valve opening degree calculation unit is configured to determine an input value of the valve opening degree such that a prediction value of the disk cavity temperature is equal to or lower than the target temperature as the valve opening degree, based on a prediction model generated based on a plurality of previous data in which the operating state, the disk cavity temperature, and an actual opening degree of the cooling-air adjustment valve previously acquired are associated with each other.

Valve opening degree determination device for cooling-air adjustment valve, disk cavity target temperature determination device, and disk cavity temperature control device

A control device for a refrigerator system for cooling a load by using a plurality of refrigerators, said control device comprising a unit to control the number of operating units that changes the number of operating refrigerators according to the load rate, and a cold water temperature acquisition unit that acquires, via a temperature sensor, the temperature of cold water affected by the refrigerators. After a prescribed standby time from when the number of operating refrigerators was changed has elapsed, the unit to control the number of operating units changes the number of operating units and reduces the prescribed standby time when at least one of the cold-water temperature and the rate of change in the cold-water temperature satisfies a prescribed condition.

Controller and method for reducing standby time when controlling the number of chillers to be operated

An image acquisition unit acquires image data in which an image of a normal monitoring target is captured. An image processing unit generates a plurality of duplicate image data pieces by performing different image processing causing a change in color tone on the image data within a range not exceeding a normal range of the monitoring target. A learning unit trains a model so as to output a value used for determining normality of the monitoring target from the image data, in which the image of the monitoring target is captured, using the plurality of duplicate image data pieces as training data.

Model learning device, method for learned model generation, program, learned model, monitoring device, and monitoring method

A superordinate controlling device for a heat source system () including a plurality of heat sources, the superordinate controlling device being applied to the heat source system () and controlling heat-pump type chillers () and () and absorption-type chillers () and () in such a manner that a heat transfer medium leaving temperature that is the temperature of a heat transfer medium supplied to an external load () is equal to a setting temperature. The heat-pump type chillers () and () each have a higher Coefficient of Performance (COP) than that of each of the absorption-type chillers () and (). The superordinate controlling device includes a heat transfer medium leaving temperature changing means for carrying out heat transfer medium leaving temperature control, by changing the heat transfer medium leaving temperatures of the heat-pump type chillers () and (), when a post-change prediction value of each of the absorption-type chiller () and () predicted based on a supposition that the heat transfer medium leaving temperatures of the heat-pump type chillers () and () are changed exceeds a second underload stop threshold value at which the corresponding one of the absorption-type chiller () and () would have an underload stop.

Heat source system controlling device, heat source system, heat source system controlling method, and heat source system controlling program

A control device is configured to control a temperature of a shaft seal portion around a rotating shaft of a rotating machine by adjusting an amount of cooling air to be supplied to the shaft seal portion. The control device is configured to calculate a sensitivity indicated using the temperature of the shaft seal portion with respect to a flow rate of the cooling air supplied to the shaft seal portion and control the flow rate of the cooling air so that the sensitivity has a predetermined target value based on the sensitivity which has been calculated. When the sensitivity is calculated, the flow rate is varied in a predetermined range having a certain flow rate as a center. The sensitivity is calculated from variation in the temperature of the shaft seal portion with respect to variation in the flow rate.

Control device, gas turbine, control method, and program

The purpose of the present invention is to maintain a water supply temperature close to a target water supply temperature at the time of a change in the number of heat source machines operating. A heat source system of the present invention anticipates a case where a prescribed minimum flow rate is set for heat source machines that are subject to addition or removal, and calculates, as compensation temperatures, hot and cold water outlet temperatures of the heat source machines so that the water supply temperature in such a case will match a target water supply temperature, and changes the hot and cold water outlet temperature settings of the operating heat source machines to the compensation temperatures. After that, the heat source machines that are subject to addition or removal are either started up or stopped, and the set flow rate for the heat source machines that are subject to addition or removal is set to the minimum flow rate.

Heat source system and control method therefor

An inspection assistance device includes a damage drawing input part configured to input a damage drawing, i.e. a drawing illustrating damages of target parts, a display configured to display the damage drawing and target figures illustrating target parts to be overlaid with each other, and a storage configured to store the damage drawing separately from the target figures in connection with the target figures.

Inspection assistance device, inspection assistance method, and program

A controller for controlling a number of operating heat sources is provided. The controller detects a change in a number of secondary pumps that supply a heat transfer medium to a load device, determines the number of operating heat sources that changes as a load demand of the state of a load device changes, and switches the number of operating heat sources. The controller determines the number of operating heat sources when the change in the number of secondary pumps due to the change in the load demand is detected, and changes the number of heat sources for as long as at least one of a prescribed period has passed from a time when the change in the number of secondary pumps is detected or a prescribed condition with respect to a value that varies due to the change in the number of secondary pumps is satisfied.

Device for controlling number of operating heat source devices, heat source system, control method, and program

A machine quantity controlling device which controls a quantity of a heat source device to operate in a heat source system including a first heat source device and a second heat source device, the first heat source device being a waste heat recovery type absorption chiller, the second heat source device other than a waste heat recovery type absorption chiller, the machine quantity controlling device including an acquisition unit that obtains a waste heat utilization maximum load which is a maximum load when the first heat source device receives only supply of the waste heat; a determination unit that determines a predetermined load range from the waste heat utilization maximum load to be a first optimal load range as an optimal load range of the first heat source device; and a machine quantity control unit that controls a quantity of the second heat source device to operate so that the sum of a total of minimum values of the optimal load range of the first heat source device to operate and a total of minimum values of a second optimal load range of the second heat source device to operate is smaller than or equal to a load required for the heat source system, and the sum of a total of maximum values of a first optimal load range and a total of maximum values of the second optimal load range is equal to or greater than the load required for the heat source system, the second optimal load range being an optimal load range of the second heat source device to operate.

Machine quantity controlling device, energy supplying system, machine quantity controlling method, and program

An inspection record apparatus includes: a display unit; a memory unit configured to store inspection record data including image information concerning a subject and information concerning a damaged state of the subject, and information indicating whether the information concerning the damaged state is in a confirmed status or not; a display control unit configured to read the inspection record data to develop the information concerning the damaged state on an image corresponding to the image information, and display the resultant image onto the display unit; a detection unit configured to detect an operation for the information concerning the damaged state; a storage unit configured to store the information indicating that the information concerning the damaged state is in the confirmed status into the memory unit; and a changing unit configured to change a display manner of the information concerning the damaged state.

Inspection record apparatus and inspection record method

The purpose of the present invention is to avoid frequent repetition of an increase/decrease stage caused by the inclusion, in a heat source system, of a machine the capacity of which has been degraded. A heat source system of the present invention is provided with a plurality of heat source machines. A higher-level control device () controls each of the heat source machines so that a heat medium delivery temperature, which is the temperature of a heat medium being supplied to an external load, will be a set temperature. The higher-level control device () is provided with a number-of-machines control unit (), a degraded machine detection unit (), and a priority ranking modification unit (). The number-of-machines control unit () controls the number of heat source machines in accordance with operational priority ranking information in which each of the heat source machines and an operational priority ranking are associated together. The degraded machine detection unit () detects, as a capacity-degraded machine, a heat source machine that satisfies a predetermined capacity degradation condition, from among operating heat source machines. The priority ranking modification unit (), if a capacity-degraded machine has been detected, modifies to a lowest position the operational priority ranking of the capacity-degraded machine in the operational priority ranking information.

Heat source system, and control device and control method therefor

In order to achieve a reduction in energy consumption in a cooling water supply device without using a database, an equipment control device () of a cooling water supply device: uses the load of a chiller, and a cooling water outlet temperature lower limit setpoint determined in accordance with the set temperature for the cooling water outlet of the chiller, to set a cooling water inlet temperature lower limit setpoint; sets, as the cooling water inlet temperature setpoint, the higher of the lower limit setpoint and the cooling water inlet temperature lower limit value as determined from the outside wet-bulb temperature; and generates a control command for a cooling tower fan and a control command for the cooling water flow volume, so as to match the cooling water inlet temperature and the cooling water outlet temperature respectively with the cooling water inlet temperature setpoint and the cooling water outlet temperature lower limit setpoint which have been set.

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Tokyo, Japan

Koki Tateishi