JP6033115B2 - Maintenance work timing judgment device, maintenance work timing judgment system, maintenance work timing judgment method and program - Google Patents

Description

  The present invention relates to a maintenance work timing determination device, a maintenance work timing determination system, a maintenance work timing determination method, and a program.

In the periodic inspection (hereinafter referred to as “regular inspection”) work of a plant or equipment, a systematic part replacement based on life management is generally performed for a part having a predetermined life. For example, in a gas turbine regular inspection service, for high-temperature parts with a fixed life, it is common to calculate the remaining life for each part and determine the part replacement time based on the relationship between the remaining life and the periodic inspection timing. Is.
On the other hand, for parts for which the service life is not specified, the replacement time is determined based on the experience of the regular inspection planner, etc., or the inspection is performed in accordance with the predetermined inspection items and replaced based on the inspection result In many cases, parts are replaced in such a manner.

In addition, several techniques have been proposed in connection with plant or equipment maintenance. For example, the plant remaining life management device described in Patent Document 1 includes a life evaluation data storage unit that stores the number of start / stop times and an operation time, and a replacement result data storage unit that stores the component replacement time, the number of times, and the like of equipment. , A skin cut performance data storage unit that stores the time of skin cut performed for each part of equipment, an aged parameter calculation unit that calculates the operating time of the device up to the time of life evaluation, and an increase in fatigue damage rate Life prediction for calculating the remaining life of each part of equipment based on linear fracture mechanics, using the deterioration tendency prediction unit that calculates the rate of increase of the damage rate and creep damage rate and the rate of increase of the fatigue damage rate and creep damage rate Part.
The plant remaining life management device described in Patent Document 1 uses the parts replacement and skin cut history as data to estimate the remaining life of the equipment based on the operational state of the plant and to formulate an appropriate maintenance plan. It is said that you can get support information for.

JP 2000-97815 A

When finding and replacing parts that have problems such as unexpected cracks or damages during regular inspections, spare parts for those parts have not been prepared in advance, and the inspection process is disrupted by urgently obtaining parts. May be incurred.
Alternatively, if parts are not available in time for the regular inspection period, it may be possible to deal with repairs without replacing parts, but there is a concern that the risk of failure will be higher than when parts are replaced. . In addition, in order to reduce the risk of failure, if the parts replacement work is performed at an early timing of the next periodic inspection, or if a temporary parts replacement work is performed, the number of work increases and the workload increases compared to the original plan. Resulting in.
In addition, when a regular inspection contractor receives a long-term maintenance menu inquiry from a client, there is a risk that it will not be possible to answer the maintenance menu because it is not possible to know the appropriate replacement time for parts that are not subject to life management. .
Also, a person who prepares for maintenance work (for example, a contractor for maintenance work) knows in advance not only the replacement time of parts but also the repair time of parts, so that workers and repair equipment that can perform repairs are available. Etc. can be planned.

  Here, the technique described in Patent Document 1 is for predicting the lifetime related to mechanical fracture caused by fatigue or creep, and does not deal with other problems. For example, in the technique described in Patent Document 1, it is not possible to determine when to replace or repair sealing parts in order to maintain the sealing performance.

  The present invention has been made in consideration of such circumstances, and its purpose is not only for replacement or repair of parts whose lifetime is not defined, but also for mechanical destruction other than fatigue and creep. To provide a maintenance work timing judgment device, a maintenance work timing judgment system, a maintenance work timing judgment method, and a program capable of supporting the determination of at least one of the replacement time and repair time for parts replacement or repair due to factors It is in.

The present invention has been made to solve the above-described problem, and a maintenance operation timing determination apparatus according to an aspect of the present invention is configured to perform a maintenance operation on a determination target component that is a component in a maintenance target facility. The cumulative operation time acquisition unit for acquiring the cumulative operation time of the maintenance target equipment from the above, and the ratio of the parts that have undergone maintenance work for each cumulative operation time of the equipment based on the maintenance work results of the same parts as the judgment target parts time to acquire - and maintenance implementation rate relationship acquisition unit, the accumulated operation time of the maintenance target equipment from the time of the determination target component maintenance performed, and, maintenance performed parts per accumulated operation time of the equipment based on the ratio, the a maintenance timing determining unit for determining maintenance timing determination target component, and outputs the judgment result of the maintenance operation timing output Characterized by comprising the, the.

A maintenance operation timing determination device according to another aspect of the present invention is the above-described maintenance operation timing determination device, wherein the cumulative operation time acquisition unit is configured to determine the determination target component at a scheduled maintenance operation. The cumulative operation time of the maintenance target equipment from the time of the maintenance work is acquired, and the maintenance work timing determination unit determines the maintenance work of the part from the ratio of the parts that have undergone the maintenance work for each cumulative operation time of the equipment. An accumulated operation time threshold value acquisition unit for obtaining an accumulated operation time threshold value at which an execution rate is equal to or higher than a predetermined maintenance operation execution rate, an accumulated operation time of the maintenance target equipment since the maintenance operation of the determination target component, and the cumulative operation Comparing the time threshold value and determining that the cumulative operation time of the maintenance target equipment from the time when the maintenance work of the determination target component is performed is greater than the cumulative operation time threshold value, And soon the determination target component maintenance work carried out it is appropriate determines accumulated operation time comparing portion than at work, characterized by comprising a.

A maintenance work timing determination device according to another aspect of the present invention is the maintenance work timing determination device described above, wherein the cumulative operation time acquisition unit is scheduled for each of the plurality of determination target components. in each of the time a plurality of maintenance work acquires the accumulated operation time of the maintenance target equipment from the determination target part of maintenance work carried out during the maintenance operation timing determination unit, for each of the time said plurality of maintenance work, It is characterized in that a determination target part for which maintenance work is appropriate during the maintenance work is determined.

  A maintenance work timing determination apparatus according to another aspect of the present invention is the above-described maintenance work timing determination apparatus, which quickly acquires a model of an immediate replacement specification part that is a part specified as an immediate replacement part. The replacement designation part type acquisition unit, the type of the determination target part, and the type of the quick replacement specification part are compared to quickly determine whether the determination target part corresponds to the immediate replacement specification part A replacement necessity determination unit, and the maintenance operation timing determination unit recommends that the determination target part determined to be a part of the immediate replacement specification part be replaced as soon as possible. .

  A maintenance work timing determination apparatus according to another aspect of the present invention is the above-described maintenance work timing determination apparatus, wherein unreplaced parts that are recommended replacements but are not replaced among the determination target parts. An unreplaceable part detection unit for detecting, and the maintenance operation timing determination unit determines whether or not to recommend replacement of the determination target component at the time of the scheduled maintenance operation. It is recommended that replacement parts be replaced during the maintenance work.

A maintenance work timing determination device according to another aspect of the present invention is the maintenance work timing determination device described above, and acquires the cumulative number of times the maintenance target equipment has been started since the maintenance work for the determination target component was performed. Obtain the cumulative start count acquisition unit and the number of times to acquire the relationship between the cumulative start count of the equipment and the maintenance work execution rate of the relevant part, which is obtained from the maintenance work results of the same part as the judgment target part-acquire the maintenance work execution rate relationship The maintenance work timing determination unit includes a cumulative operation time of the maintenance target equipment since the maintenance work of the determination target part, and a ratio of the parts that have undergone the maintenance work for each cumulative operation time of the equipment. , Based on the cumulative start count of the maintenance target equipment from the time of maintenance work of the determination target part, and the relationship between the cumulative start count of the equipment and the maintenance work execution rate of the part, A determination of maintenance timing of the serial determination target component, and wherein the.

A maintenance work timing determination system according to another aspect of the present invention includes a maintenance work timing determination device and a terminal device, and determines a maintenance work timing of a determination target part that is a part in a maintenance target facility. In the timing determination system, the maintenance operation timing determination device is the same as the determination target component, and a cumulative operation time acquisition unit that acquires a cumulative operation time of the maintenance target facility from the time when the maintenance operation of the determination target component is performed. A time-maintenance work execution rate relationship acquisition unit that acquires the ratio of parts that have undergone maintenance work for each cumulative operation time of the facility , based on the maintenance work results of the parts, and cumulative operation time of the maintenance target equipment, and, based on the percentage of maintenance performed parts per accumulated operation time of the equipment, of the determination target component A maintenance operation timing determination unit that determines a maintenance operation timing; and a transmission unit that transmits a determination result of the maintenance operation timing of the determination target component to the terminal device, wherein the terminal device determines the maintenance operation timing determination A receiving unit that receives the determination result of the device and a display unit that displays the determination result of the maintenance work timing determination device are provided.

  A maintenance work timing determination system according to another aspect of the present invention is the maintenance work timing determination system described above, wherein the cumulative operation time acquisition unit is scheduled for each of the plurality of determination target components. In each of a plurality of maintenance work, to obtain the cumulative operation time of the maintenance target equipment from the time of maintenance work of the determination target part, the maintenance work timing determination unit, for each of the plurality of maintenance work, It is characterized in that a determination target part for which maintenance work is appropriate during the maintenance work is determined.

A maintenance work timing determination method according to another aspect of the present invention is a maintenance work timing determination method of a maintenance work timing determination device, and for a determination target part that is a part in a maintenance target facility, the maintenance of the determination target part is performed. the accumulated operation time obtaining step of obtaining the accumulated operation time of the maintenance target equipment from the time of the work carried out, the determination target component based on the same parts of the maintenance record and, for each cumulative operation time of the equipment maintenance performed Time-maintenance work rate relationship acquisition step for acquiring the proportion of parts, cumulative operation time of the maintenance target equipment since the maintenance work of the judgment target part, and maintenance work for each cumulative operation time of the equipment have been performed . based on the ratio of components, said a maintenance timing determining step for determining maintenance timing determination target component, the maintenance work Characterized by comprising an output step of outputting the judgment result of the timing, the.

In addition, the program according to another aspect of the present invention provides a computer serving as a maintenance work timing determination device, wherein the maintenance target equipment from the time when the maintenance work of the determination target part is performed on the determination target part that is a part in the maintenance target equipment A cumulative operation time acquisition step of acquiring a cumulative operation time of the system, and a time for acquiring a ratio of maintenance- completed parts for each cumulative operation time of the equipment based on a maintenance work result of the same part as the determination target part-maintenance Based on the work execution rate relationship acquisition step, the cumulative operation time of the maintenance target equipment since the maintenance work of the determination target part, and the ratio of the parts that have undergone maintenance work for each cumulative operation time of the equipment, Maintenance work timing judgment step for judging the maintenance work timing of the judgment target part, and output the judgment result of the maintenance work timing An output step that is a program for execution.

  According to the present invention, replacement or repair of a part whose lifetime is not specified is also determined, or replacement or repair of a part due to factors other than mechanical destruction caused by fatigue or creep At least one decision can be assisted.

It is a schematic block diagram which shows the function structure of the maintenance work timing determination apparatus in the 1st Embodiment of this invention. It is explanatory drawing which shows the example of the relationship between the cumulative operation time of an installation, and the replacement | exchange rate of components which the time-maintenance operation implementation rate relationship acquisition part in the embodiment acquires. It is a schematic block diagram which shows the function structure of the replacement | exchange and repair time determination apparatus in the 2nd Embodiment of this invention. It is explanatory drawing which shows the example of the form of the regular inspection plan table which the display part in the embodiment displays. It is explanatory drawing which shows the example of the data structure of the maintenance log | history which the replacement | exchange and repair performance memory | storage part in the same embodiment memorize | stores. In the same embodiment, it is a flowchart which shows the procedure of the process which a replacement | exchange and repair time determination apparatus produces | generates a regular inspection plan table. In the same embodiment, it is a flowchart which shows the procedure of the process in which a control part acquires the recommended replacement time of components. In the same embodiment, it is a flowchart which shows the procedure of the process in which a control part acquires the prediction repair time of components. It is a schematic block diagram which shows the function structure of the replacement | exchange and repair time determination apparatus in the 3rd Embodiment of this invention. It is a schematic block diagram which shows the function structure of the replacement | exchange and repair time determination apparatus in the 4th Embodiment of this invention. It is a schematic block diagram which shows the function structure of the replacement | exchange and repair time determination system in the 5th Embodiment of this invention.

<First Embodiment>
Embodiments of the present invention will be described below with reference to the drawings. Hereinafter, replacement and repair are collectively referred to as “maintenance”. In particular, the replacement work and the repair work are collectively referred to as “maintenance work”. Maintenance and inspection are collectively referred to as “maintenance inspection”.
FIG. 1 is a schematic block diagram showing a functional configuration of a maintenance work timing determination apparatus according to the first embodiment of the present invention. In the figure, a maintenance work timing determination device 10 includes a cumulative operation time acquisition unit 11, a time-maintenance work execution rate relationship acquisition unit 12, a maintenance work timing determination unit 13, and an output unit 14.

The maintenance work timing determination device 10 determines the maintenance work timing of parts in the maintenance target equipment. The maintenance work timing determination device 10 is configured by a computer, for example.
The maintenance target facility here is a facility to be maintained. The maintenance target facility may be a device such as a turbine, or may include a plurality of devices such as a system, a plant, or a unit in the plant. The maintenance referred to here may be performed with inspection (that is, as maintenance inspection), or may be performed separately from the inspection.

The maintenance work timing here is an appropriate timing for performing the maintenance work. More specifically, the maintenance work timing is a recommended replacement time or a predicted repair time. The recommended replacement time here is a recommended replacement time (a time when the maintenance work timing determination device recommends replacement of parts). In addition, the predicted repair time here is a repair time predicted to be necessary (time when repair is required as predicted by the maintenance work timing determination device).
The maintenance operation timing determination performed by the maintenance operation timing determination device 10 may be calculation of maintenance operation timing, or determination of whether or not a component maintenance operation is recommended or necessary at a predetermined time such as at a predetermined regular inspection. There may be.

  The determination result of the maintenance work timing by the maintenance work timing determination apparatus 10 is used for, for example, the formulation of a maintenance plan for the maintenance target equipment. For example, a maintenance contractor for a maintenance target facility formulates a maintenance plan with reference to a recommended replacement time or a predicted repair time output from the maintenance work timing determination device 10, and operates the maintenance target facility operator (for example, the maintenance target facility). Proposal to equipment owner).

In addition, the parts referred to here may be a part of equipment and a unit for replacement. Accordingly, one device may be one component in a plant, system or unit.
In the following, a part that is a determination target of maintenance work timing is referred to as a “determination target part”. The number of determination target components may be one or plural. Hereinafter, a case where there are a plurality of determination target parts will be described as an example.

The accumulated operation time acquisition unit 11 acquires the accumulated operation time of the maintenance target equipment from the time when the maintenance work of the determination target part is performed (specifically, when the use is started or when the latest replacement is performed among the replacement results). .
For example, in the determination of the recommended replacement time, the accumulated operation time acquisition unit 11 stores a maintenance history including the start of use (during the latest replacement) of each determination target component. Alternatively, the cumulative operation time acquisition unit 11 may acquire the maintenance history from another device such as a maintenance target facility management device.

Then, the cumulative operation time acquisition unit 11 calculates the time from the start of use of the determination target part to a designated reference time such as a regular inspection.
Further, the cumulative operation time acquisition unit 11 calculates the operation rate of the maintenance target facility from the operation result or the operation plan of the maintenance target facility. Then, the cumulative operation time acquisition unit 11 acquires the cumulative operation time by multiplying the time from the start of use of the determination target component to a designated reference time such as regular inspection by the operation rate of the maintenance target facility.

  However, the method by which the cumulative operation time acquisition unit 11 acquires the cumulative operation time of the maintenance target facility from the start of use of the determination target component is not limited to this. For example, various acquisition methods can be used, such as the cumulative operation time acquisition unit 11 acquiring the cumulative operation time of the maintenance target equipment from the start of use of the determination target component from a higher management device.

  In the determination of the predicted repair time, the cumulative operation time acquisition unit 11 includes a maintenance history including the latest repair time (at the start of use if repair has not yet been performed) among the repair results of each of the determination target parts. Remember. Alternatively, the cumulative operation time acquisition unit 11 may acquire the maintenance history from another device such as a maintenance target facility management device.

The accumulated operation time acquisition unit 11 then performs the maintenance work for the determination target part (specifically, at the start of use or when the latest replacement is performed among the replacement results) until the designated reference time such as a regular inspection. The time is calculated.
Further, the cumulative operation time acquisition unit 11 calculates the operation rate of the maintenance target facility from the operation result or the operation plan of the maintenance target facility. Then, the cumulative operation time acquisition unit 11 acquires the cumulative operation time by multiplying the time from the latest repair of the determination target part to the designated reference time such as regular inspection by the operation rate of the maintenance target equipment.

  However, the method in which the cumulative operation time acquisition unit 11 acquires the cumulative operation time of the maintenance target equipment from the latest repair of the determination target component is not limited to this. For example, various acquisition methods can be used such as the cumulative operation time acquisition unit 11 acquiring the cumulative operation time of the maintenance target facility from the latest replacement of the determination target component from the upper management device.

  The time-maintenance work execution rate relationship acquisition unit 12 acquires the relationship between the cumulative operation time of the equipment and the maintenance work execution rate of the part obtained from the maintenance work performance of the same part as the determination target part. Here, the same component as the determination target component is a component of the same type as the determination target component. Moreover, the maintenance work execution rate here is a replacement rate or a repair rate. More specifically, in the determination of the recommended replacement time, the time-maintenance work execution rate relationship acquisition unit 12 acquires the relationship between the cumulative operation time of equipment and the component replacement rate. Further, in the determination of the predicted repair time, the time-maintenance work execution rate relationship acquisition unit 12 acquires the relationship between the cumulative operation time of equipment and the repair rate of parts.

  For example, regarding the determination of the recommended replacement time, the time-maintenance work execution rate relationship acquisition unit 12 adds the relevant equipment in the period from the start of use of each part to the replacement in the maintenance history of the maintenance target equipment and similar equipment of the maintenance target equipment. It is memorized including the history of accumulated operation time. Alternatively, another device such as a maintenance history database may store the maintenance history, and the time-maintenance work execution rate relationship acquisition unit 12 may acquire data from the device. Alternatively, the time-maintenance work execution rate relationship acquisition unit 12 can record from the start of use of the part to the replacement for each part replacement record from the record of the start / stop time of the equipment and the record of the replacement time of each part. You may make it calculate the cumulative operation time of the installation in a period.

In addition, similar facilities here are the facilities with which the structure and driving | running state of an installation are similar. For example, the time-maintenance work execution rate relationship acquisition unit 12 acquires data of a facility whose gas turbine type and operation mode are the same as those of the maintenance target facility as similar facilities of the maintenance target facility.
The operation mode here refers to, for example, continuous operation (BL; Base Load), daily operation (DSS; Daily Start And Stop) or weekly operation (WSS; Weekly Start And Stop) in the gas turbine power generation unit. This mode determines the start / stop pattern.

  The time-maintenance work execution rate relationship acquisition unit 12 acquires, for each replacement result of the same part as the determination target part from the maintenance history, the equipment that uses the part in the period from the start of use of the part to the end of use. Get the cumulative operating time. Then, the time-maintenance work execution rate relationship acquisition unit 12 calculates the ratio of replaced parts for each cumulative operation time.

  FIG. 2 is an explanatory diagram illustrating an example of the relationship between the cumulative operation time of equipment and the part replacement rate, which is acquired by the time-maintenance work execution rate relationship acquisition unit 12. FIG. 3A shows the cumulative operation time of the equipment that uses the part in the period from the start of use to the end of use of the same part as the determination target part. FIG. 7B is a graph showing the relationship between the cumulative operation time of the equipment and the replacement rate of the part, which is acquired by the time-maintenance work execution rate relationship acquisition unit 12.

  In the example of FIG. 2, the parts 1, 2, 3, and 4 are replaced when the cumulative operation time of the equipment from the start of use of the parts reaches times T13, T11, T12, and T14, respectively. Therefore, the exchange rate is 0 percent (%) until time T11. From time T11 to T12, only the part 2 is replaced, and the replacement rate is 25%. From time T12 to T13, the parts 2 and 4 are exchanged, and the exchange rate is 50%. From time T13 to T14, parts 1, 2 and 4 are exchanged, and the exchange rate is 75%. After time T14, all the parts 1 to 4 have been replaced, and the replacement rate is 100%.

In addition, various formats can be used as the expression format when the time-maintenance work execution rate relationship acquisition unit 12 acquires the relationship between the cumulative operation time of equipment and the replacement rate of parts. For example, the time-maintenance work execution rate relationship acquisition unit 12 may acquire the relationship between the cumulative operation time of the equipment and the part replacement rate as tabular data or as a function. May be.
The number of parts for which the time-maintenance work execution rate relationship acquisition unit 12 refers to the history is not limited to four in FIG. 2 and may be one or more. From the viewpoint of data reliability, it is preferable that the time-maintenance work execution rate relationship acquisition unit 12 has a larger number of parts referring to the history.
The time-maintenance work execution rate relationship acquisition unit 12 may obtain the relationship between the cumulative operation time of equipment and the replacement rate of parts by using approximate data such as linear approximation. Alternatively, the time-maintenance work execution rate relationship acquisition unit 12 may calculate the relationship between the cumulative operation time and the part replacement rate by Weibull analysis.
In addition, regarding the determination of the predicted repair time, the time-maintenance work execution rate relationship acquisition unit 12 performs repair of the same part as the determination target part from the maintenance history at the start of use of the part or the latest replacement. Acquire the cumulative operating time of the equipment that uses the part in the period from time to time of repair. Then, the time-maintenance work execution rate relationship acquisition unit 12 determines the cumulative operation time and the component repair rate as in the case of the relationship between the facility cumulative operation time and the component replacement rate described with reference to FIG. Get the relationship.

The maintenance work timing determination unit 13 determines the cumulative operation time of the maintenance target equipment and the cumulative operation time of the equipment from the time when the maintenance work of the determination target part is performed (at the start of use or when the latest repair is performed). The maintenance operation timing of the determination target component is determined based on the relationship between the maintenance operation rate of the component and the component. More specifically, the maintenance work timing determination unit 13 determines a recommended replacement time for parts and a predicted repair time for parts.
Here, the maintenance work timing determination unit 13 may calculate the maintenance work timing. For example, in the determination of the recommended replacement time, the maintenance work timing determination unit 13 obtains the cumulative operation time that reaches a predetermined replacement rate (for example, 30%) in the relationship between the cumulative operation time of the equipment and the part replacement rate, and the cumulative It may be recommended to replace the determination target part by the operation time. Alternatively, as described in the second embodiment, the maintenance work timing determination unit 13 determines whether or not the replacement of the determination target component is recommended at a predetermined time such as a predetermined regular inspection. Also good.
The same applies to the determination of the predicted repair time.

  The output unit 14 outputs the determination result of the maintenance work timing. Here, various methods can be used as a method for the output unit 14 to output the determination result of the maintenance work timing. For example, the output unit 14 may include a display device and display the determination result. Or the output part 14 may comprise a communication part, and you may make it transmit a determination result to another apparatus. Alternatively, the output unit 14 may temporarily store the determination result, and display or transmit the determination result in accordance with the user's requested operation of the maintenance work timing determination device 10.

As described above, the maintenance work timing determination unit 13 is based on the cumulative operation time of the maintenance target equipment from the time when the maintenance work of the determination target part is performed and the relationship between the cumulative operation time of the equipment and the maintenance work execution rate of the part. Then, the maintenance work timing of the part to be judged is judged.
As a result, the maintenance work timing determination device 10 can be used for replacement or repair of parts whose lifetime is not determined, or replacement or repair of parts due to factors other than mechanical destruction caused by fatigue or creep. Can assist in determining timing and / or repair timing.

In particular, the maintenance work timing determination device 10 can recommend replacement of parts at the regular inspection, and can predict a repair necessary for the regular inspection. Thereby, the regular inspection worker can arrange replacement parts, repair workers, etc. before the regular inspection.
By arranging replacement parts, repair workers, etc. before the regular inspection, the regular inspection worker can smoothly proceed with the regular inspection work and prevent confusion in the regular inspection process.

  In addition, since replacement parts can be arranged before the regular inspection, it is possible to reduce the possibility that parts will not be available in time for the regular inspection period. Therefore, it is possible to avoid a situation in which the risk of failure increases due to repair without replacing parts. Furthermore, in order to reduce the risk of failure, it is possible to prevent the situation where parts replacement work is performed ahead of the next regular inspection period or temporary parts replacement work is performed, and the number of operations is increased from the original plan. However, it is possible to avoid an increase in workload.

In addition, when a regular inspection contractor receives a long-term maintenance menu inquiry from the client, the contractor uses the maintenance work timing determination device 10 to determine the parts that are not subject to life management. Appropriate maintenance work timing can be grasped. As a result, the trustee can avoid a situation where the maintenance menu cannot be answered.
The present invention can also be applied to the case where only one of the replacement time and the repair time is determined. Therefore, the maintenance work timing determination device 10 may determine only one of the replacement time and the repair time. The same applies to the following embodiments.

<Second Embodiment>
In the second embodiment, an example in which the first embodiment is further embodied will be described.
FIG. 3 is a schematic block diagram showing a functional configuration of the replacement / repair time determination device according to the second embodiment of the present invention. In FIG. 1, the replacement / repair time determination device 100 includes an operation input unit 101, a display unit 102, a storage unit 110, and a control unit 120. The storage unit 110 includes a replacement / repair record storage unit 111. The control unit 120 includes a cumulative operation time acquisition unit 121, a time-replacement rate / repair rate relationship acquisition unit 122, a cumulative activation number acquisition unit 123, a number-replacement rate / repair rate relationship acquisition unit 124, and a replacement / repair. And a time determination unit 130. The replacement / repair time determination unit 130 includes a cumulative operation time threshold value acquisition unit 131, a cumulative activation frequency threshold value acquisition unit 132, and a threshold value determination unit 133.

The replacement / repair time determination device 100 corresponds to an example of the maintenance work timing determination device 10 (FIG. 1), and determines the recommended replacement time and predicted repair time of parts in the maintenance target facility. The replacement / repair time determination device 100 is configured by a computer, for example.
The operation input unit 101 has an input device such as a keyboard and a mouse, for example, and accepts user operations. For example, the operation input unit 101 accepts a user operation that requests determination of replacement time or repair time.

  The display unit 102 has a display screen such as a liquid crystal panel or an organic EL (Organic Electro-Luminescence) panel, and displays various images such as a moving image, a still image, and text (characters). In particular, the display unit 102 displays the determination result of the replacement time or the repair time by the replacement / repair time determination unit 130. The display unit 102 corresponds to an example of the output unit 14.

FIG. 4 is an explanatory diagram showing an example of the form of the regular inspection plan table displayed by the display unit 102. In the figure, an area A111 is an area showing parts recommended for replacement at the next regular inspection. An area A112 is an area indicating a part scheduled for repair at the next regular inspection.
In addition, the area A121 is an area that shows parts recommended to be replaced at the next regular inspection. An area A122 is an area showing a part scheduled to be repaired at the next regular inspection. An area A131 is an area that indicates a part that is recommended to be replaced at a regular inspection three times ahead (next to the next). An area A132 is an area indicating a part scheduled for repair at the third regular inspection.

  As will be described later, the replacement / repair time determination unit 130 is a determination target component that recommends replacement for each of a plurality of maintenance work (for example, each of the regular inspection work on which the scheduled inspection date is determined) during the maintenance work. And a determination target component that is predicted to be repaired during the maintenance operation. Therefore, as in the example of FIG. 4, the display unit 102 displays, for each maintenance operation, a determination target component that is recommended to be replaced and a determination target component that is predicted to require repair (a determination target component that is scheduled for repair). To do.

The storage unit 110 is realized by a storage device included in the replacement / repair time determination apparatus 100 and stores various data.
The replacement / repair record storage unit 111 stores the maintenance history of the maintenance target equipment and similar equipment of the maintenance target equipment. The maintenance history stored in the replacement / repair record storage unit 111 includes a replacement history (replacement record) and a repair history (repair record) of each part.
In addition, the replacement / repair record storage unit 111 may be configured as a device different from the replacement / repair time determination device 100.

FIG. 5 is an explanatory diagram showing an example of the data structure of the maintenance history stored in the replacement / repair record storage unit 111. This figure shows an example of the data structure of the maintenance history when the maintenance target facility is a gas turbine power generation unit.
In FIG. 5, “part-by-unit component maintenance result information” is maintenance history information for one unit, and includes a “unit information” area and a “part information” area.

The “unit information” area is an area indicating information about the entire unit, and includes a “plant name” field, a “unit number” field, a “turbine type” field, an “operation mode” field, and an “operation history” field. And a “maintenance schedule” column.
The “plant name” column stores the name of the plant to which the unit belongs (in the example of FIG. 5, the name of the gas turbine power plant). The “unit number” column stores a unit number assigned to the unit. The “turbine type” column stores information (for example, a model number or a name of the type) indicating the type of the gas turbine constituting the unit.

The “operation mode” column stores information indicating the operation mode of the unit.
The “operation history” column stores the operation history of the unit, such as the date and time of start and stop, the history of the amount of power generation for each hour, the date and time of occurrence of the failure, and the content of the failure.
The “maintenance schedule” column stores the maintenance schedule such as the scheduled date and type of maintenance in the unit (for example, the type of maintenance inspection such as combustor inspection, turbine inspection, or full-scale regular inspection).

The “part information” area is an area indicating information for each part included in the unit, and includes an “identification number” field, a “part name” field, a “model” field, a “replacement history” field, Repair history "column.
The “identification number” column stores an identification number assigned to the part. The “part name” column stores the name of the part. The “model” column stores information (for example, manufacturer name and model number) indicating the model of the part.
The “replacement history” column stores the date and time when the part was replaced.
The “repair history” column stores the date and time when the part was repaired and the details of the repair.

The control unit 120 controls each unit of the replacement / repair time determination device 100 to execute various functions. The control unit 120 is realized by, for example, a CPU (Central Processing Unit) included in the replacement / repair time determination device 100 reading and executing a program stored in the storage unit 110.
The cumulative operation time acquisition unit 121 performs cumulative operation of the maintenance target equipment at the time of scheduled maintenance work from the time when the maintenance work of the judgment target component is performed (at the start of use or when the latest repair of repair results is performed). Get time. In particular, the cumulative operation time acquisition unit 121 includes, for each of the plurality of determination target components, the cumulative operation time of the maintenance target facility from the time when the maintenance operation of the determination target component is performed in each of the scheduled maintenance operations. To get. The cumulative operation time acquisition unit 121 corresponds to an example of the cumulative operation time acquisition unit 11 (FIG. 1).

  For example, in the determination of the recommended replacement time, the cumulative operation time acquisition unit 121 performs the maintenance from the start of use of the determination target component for each of the plurality of determination target components and for each of the plurality of scheduled maintenance operations. Find the time to work. Further, the cumulative operation time acquisition unit 121 obtains the operation rate of the maintenance target equipment in the same manner as described for the cumulative operation time acquisition unit 11. Then, the accumulated operation time acquisition unit 121 multiplies the time from the start of use of the determination target part to the maintenance work day by the operation rate, and calculates the accumulated operation time for each determination target part and for each maintenance work. .

  Further, in the determination of the predicted repair time, the accumulated operation time acquisition unit 121 is the latest of the replacement results of the determination target part for each of the plurality of determination target parts and for each of the plurality of scheduled maintenance operations. The time from the time of replacement (at the start of use if replacement has not yet been performed) to the time of the maintenance work is obtained. Then, the cumulative operation time acquisition unit 121 calculates the cumulative operation time for each determination target component and for each maintenance operation, as in the case of determining the recommended replacement time.

The time-replacement rate / repair rate relationship acquisition unit 122 obtains the relationship between the cumulative operation time of the facility and the replacement rate of the component, and the cumulative operation time of the facility, which are obtained from the maintenance results of the same component as the determination target component. Get the relationship with the repair rate of the part. The time-replacement rate / repair rate relationship acquiring unit 122 corresponds to an example of the time-maintenance work execution rate relationship acquiring unit 12 (FIG. 1).
For example, the time-replacement rate / repair rate relationship acquisition unit 122 refers to the replacement result of the same part as the determination target component in the maintenance history stored in the replacement / repair result storage unit 111, and performs the time-maintenance work. In the same manner as described for the execution rate relationship acquisition unit 12, the relationship between the cumulative operation time of the equipment and the replacement rate of the part is acquired.

Further, the time-replacement rate / repair rate relationship acquisition unit 122 refers to the repair results of the same part as the determination target part in the maintenance history, and obtains the relationship between the cumulative operation time of the facility and the repair rate of the part. get.
Specifically, the time-replacement rate / repair rate relationship acquisition unit 122 first determines whether the part from the repair result of the same part as the determination target part is used for each period from the start of use of the part or the latest replacement time to the repair. Find the cumulative operating time of equipment that uses parts. Then, the time-replacement rate / repair rate relationship acquisition unit 122 acquires the relationship between the cumulative operation time of the equipment and the component repair rate in the same manner as in the case of the replacement rate described with reference to FIG.

The cumulative activation number acquisition unit 123 acquires the cumulative activation number of the maintenance target equipment from the time when the maintenance work of the determination target part is performed (when the use starts or when the latest replacement is performed among the replacement results). For example, in determining the recommended replacement time, the cumulative activation number acquisition unit 123 acquires the start / stop history of the maintenance target equipment and the information on the start of use of the determination target component, and performs a regular check from the start of use of the determination target component. Count the number of start-ups of the maintenance target equipment up to the specified reference time such as hour.
Alternatively, the cumulative activation number acquisition unit 123 may acquire the cumulative activation number based on the operation mode of the maintenance target facility and the start of use of the determination target component. For example, when the operation mode of the maintenance target equipment is daily operation, the number of days from the start of use of the determination target component to the reference time is calculated and used as the number of activations. Alternatively, when the operation mode of the maintenance target facility is a weekly operation, the number of weeks from the start of use of the determination target component to the reference time is calculated as the number of activations.

The number-replacement rate / repair rate relationship acquisition unit 124 obtains the relationship between the cumulative number of start times of the equipment and the replacement rate of the parts, and the cumulative number of start times of the equipment, obtained from the maintenance results of the same part as the determination target part. Get the relationship with the repair rate of the part.
For example, the number-replacement rate / repair rate relationship acquisition unit 124 first uses the part for each replacement result of the same part as the determination target part in the maintenance history stored in the replacement / repair result storage unit 111. Acquire the cumulative number of activations of the equipment that uses the part in the period from the start to the end of use. Then, the number-replacement rate / repair rate relationship acquisition unit 124 obtains the ratio of the replaced parts for each cumulative number of activations in the same manner as the cumulative operation time described with reference to FIG.

Further, the number-replacement rate / repair rate relationship acquisition unit 124 refers to the repair results of the same part as the determination target part in the maintenance history, and obtains the relationship between the cumulative number of times of starting the equipment and the repair rate of the part. get.
Specifically, the number-replacement rate / repair rate relationship acquisition unit 124 first determines from the repair result of the same part as the determination target part, for each period from the start of use of the part or the latest replacement time to the repair. Find the cumulative number of startups of equipment that uses parts. Then, the number-replacement rate / repair rate relationship acquiring unit 124 acquires the relationship between the cumulative number of times of starting the equipment and the component repair rate in the same manner as in the case of the replacement rate.

The replacement / repair time determination unit 130 determines, for each of a plurality of maintenance operations, a determination target component that is recommended to be replaced during the maintenance operation. At that time, the replacement / repair time determination unit 130 determines the cumulative operation time of the maintenance target facility from the start of use of the determination target component, the relationship between the cumulative operation time of the facility and the replacement rate of the component, and from the start of use of the determination target component. Based on the cumulative start count of the maintenance target equipment and the relationship between the cumulative start count of the equipment and the part replacement rate, the recommended replacement time for the determination target part is determined. The replacement / repair time determination unit 130 corresponds to an example of the maintenance work timing determination unit 13 (FIG. 1).
Further, the replacement / repair time determination unit 130 determines, for each of a plurality of maintenance operations, a determination target component that is predicted to be repaired during the maintenance operation.

In the replacement / repair time determination unit 130, the cumulative operation time threshold value acquisition unit 131 is for replacement determination in which the replacement rate of the part is equal to or higher than a predetermined replacement rate from the relationship between the cumulative operation time of the equipment and the replacement rate of the part. The cumulative operation time threshold is obtained.
For example, in the example of FIG. 2B, when the predetermined replacement rate is set to 30%, the cumulative operation time threshold value acquisition unit 131 uses the time T12 when the replacement rate is 30% or more as the cumulative for replacement determination. The operating time threshold is assumed.

Similarly, the cumulative operation time threshold value acquisition unit 131 determines a cumulative operation time threshold value for repair determination, in which the repair rate of the part is equal to or higher than a predetermined repair rate, based on the relationship between the cumulative operation time of the equipment and the repair rate of the part. Ask.
For example, when the predetermined repair rate is set to 50%, the cumulative operation time threshold value acquisition unit 131 includes the cumulative operation time of the equipment and the component repair rate acquired by the time-replacement rate / repair rate relationship acquisition unit 122. In this relation, the cumulative operation time at which the repair rate is 50% or more is set as a cumulative operation time threshold for repair determination.

The cumulative activation number threshold value acquisition unit 132 obtains a cumulative activation number threshold value for replacement determination at which the replacement rate of the component is equal to or higher than a predetermined replacement rate, based on the relationship between the cumulative activation frequency of the equipment and the component replacement rate.
For example, when the predetermined replacement rate is set to 30%, the cumulative activation frequency threshold value acquisition unit 132 acquires the cumulative activation frequency of the equipment acquired by the frequency-replacement rate / repair rate relationship acquisition unit 124 and the replacement rate of the part. Therefore, the cumulative number of activations at which the exchange rate is 30% or more is set as the cumulative activation number threshold value for replacement determination.

Similarly, the cumulative activation frequency threshold value acquisition unit 132 determines the cumulative activation frequency threshold value for repair determination, in which the repair rate of the part is equal to or higher than a predetermined repair rate, based on the relationship between the cumulative activation frequency of the equipment and the component repair rate. Ask.
For example, when the predetermined repair rate is set to 50%, the cumulative activation frequency threshold value acquisition unit 132 acquires the cumulative activation frequency of the equipment acquired by the frequency-replacement rate / repair rate relationship acquisition unit 124 and the repair rate of the part. In this relationship, the cumulative number of activations at which the repair rate is 50% or more is set as the cumulative activation number threshold for repair determination.
It should be noted that the predetermined replacement rate and the predetermined repair rate used by the cumulative activation number threshold acquisition unit 132 may be the same as or different from the predetermined replacement rate and the predetermined repair rate used by the cumulative operation time threshold acquisition unit 131. May be.

The threshold value determination unit 133 is a cumulative operation time of the maintenance target equipment from the start of use of the determination target part, a relationship between the cumulative operation time of the equipment and the replacement rate of the equipment, and a cumulative start of the maintenance target equipment from the start of use of the determination target part. The recommended replacement timing of the determination target component is determined based on the number of times and the relationship between the cumulative number of startups of the facility and the component replacement rate.
In particular, the threshold value determination unit 133 is the cumulative operation time of the maintenance target facility from the start of use of the determination target component (that is, in the period from the start of use of the determination target component to the reference time) during the maintenance work that is the reference time. The cumulative operation time of the maintenance target facility) is compared with the cumulative operation time threshold value for replacement determination.
If it is determined that the cumulative operation time is greater than the cumulative operation time threshold for replacement determination, the threshold determination unit 133 recommends that the determination target component be replaced earlier than the maintenance work that is the reference time.
The threshold value determination unit 133 corresponds to an example of a cumulative operation time comparison unit.

More specifically, the threshold determination unit 133 determines, for each determination target component, whether or not the cumulative operation time of the determination target component is greater than the cumulative operation time threshold for replacement determination, in order from the scheduled inspection with an earlier scheduled time. In addition, it is determined whether or not the cumulative activation count of the determination target component is larger than the cumulative activation count threshold for replacement determination. When it is determined that either the cumulative operation time or the cumulative number of activations is larger than the threshold value, the threshold value determination unit 133 recommends that the determination target part be replaced at the regular inspection immediately before the regular inspection. That is, the threshold determination unit 133 recommends that the determination target part be replaced at the latest regular inspection among regular inspections in which neither the cumulative operation time nor the cumulative number of activations exceeds the threshold.
When it is determined that the cumulative operation time or the cumulative number of activations is greater than the threshold at the next regular inspection, the threshold determination unit 133 recommends that the part to be determined be replaced at the next regular inspection and exceeds the threshold. Add information (warning) to indicate.

  Similarly, the threshold value determination unit 133 includes the cumulative operation time of the maintenance target equipment and the cumulative operation time of the equipment from the latest replacement time (when the replacement has not been performed yet, at the start of use). And the repair rate of parts, the cumulative number of times that the maintenance target equipment has been started since the latest repair of the judgment target parts (when the repair has not been performed yet, the start of use), and the cumulative number of equipment Based on the relationship between the number of activations and the repair rate of the part, the predicted repair time of the part to be determined is determined. The predicted repair time here is a time when it is predicted that the determination target part needs to be repaired when it is assumed that the determination target part is not replaced. Similar to the recommended replacement time, the determination result of the predicted repair time by the replacement / repair time determination device 100 is used, for example, in the formulation of a maintenance plan for the maintenance target equipment.

More specifically, the threshold determination unit 133 determines, for each determination target component, whether the cumulative operation time of the determination target component is greater than the cumulative operation time threshold for repair determination, in order from the scheduled inspection with an earlier scheduled time. In addition, it is determined whether or not the cumulative activation count of the determination target component is larger than the cumulative activation count threshold value for repair determination. When it is determined that either the cumulative operation time or the cumulative number of activations is larger than the threshold, the threshold determination unit 133 predicts that the determination target component needs to be repaired at the regular inspection immediately before the regular inspection. That is, the threshold determination unit 133 determines that the determination target part needs to be repaired at the latest regular inspection among the regular inspections in which neither the cumulative operation time nor the cumulative number of activations exceeds the threshold.
When it is determined that the cumulative operation time or the cumulative number of activations is greater than the threshold value at the next regular inspection, the threshold determination unit 133 predicts that the determination target part needs to be repaired at the next regular inspection, and sets the threshold value. Add information (warning) that indicates exceeding.

Next, the operation of the replacement / repair time determination device 100 will be described with reference to FIGS.
FIG. 6 is a flowchart showing a procedure of processing in which the replacement / repair time determination device 100 generates a regular inspection plan table. For example, when the operation input unit 101 detects a user operation for requesting determination of replacement time or repair time, the replacement / repair time determination device 100 starts the processing in FIG.
In the process of FIG. 6, first, the operation input unit 101 receives an input operation of identification information of the maintenance target facility. For example, the operation input unit 101 receives an input operation of the plant name and unit number in the example of FIG. 5 (step S101).

  Next, based on the identification information obtained in step S101, the control unit 120 acquires information related to the maintenance target facility, such as the history of start / stop of the maintenance target facility or the operation mode, and the maintenance schedule of the maintenance target facility. (Step S102). For example, in the case of the example in FIG. 5, the control unit 120 reads information related to the maintenance target facility from the storage unit 110 using the identification information obtained in step S <b> 101 as a search key.

Further, the control unit 120 replaces and repairs the maintenance history (replacement history and repair history) of the parts in the maintenance target equipment or similar equipment of the maintenance target equipment together with the operation history or operation mode of the equipment including the part. Reading from the storage unit 111 (step S103).
And the control part 120 starts the loop L11 which performs the process with respect to each of the components used as a maintenance object (namely, determination object component) (step S111).
In the processing of the loop L11, the control unit 120 first acquires a recommended replacement time for the component that is the processing target in the loop L11 (step S112).

FIG. 7 is a flowchart illustrating a procedure of processing in which the control unit 120 acquires a recommended replacement time for parts. The control unit 120 performs the process of FIG. 7 in step S112 of FIG.
In the process of FIG. 7, the time-replacement rate / repair rate relationship acquisition unit 122 first uses the component maintenance history obtained in step S103 of FIG. The relationship with the exchange rate is acquired (step S201).

  Next, the cumulative operation time threshold value acquisition unit 131 acquires the cumulative operation time threshold value for replacement determination based on the relationship between the cumulative operation time of the equipment obtained in step S201 and the part replacement rate (step S202). . Specifically, as described above, the cumulative operation time threshold value acquisition unit 131 calculates the cumulative operation time that is equal to or higher than a predetermined replacement rate in the relationship between the cumulative operation time of the equipment obtained in step S201 and the component replacement rate. The cumulative operation time threshold for replacement determination is used.

Further, the number-replacement rate / repair rate relationship acquisition unit 124 uses the component maintenance history obtained in step S103 in FIG. Is acquired (step S203).
Then, the cumulative activation frequency threshold acquisition unit 132 acquires the cumulative activation frequency threshold for replacement determination based on the relationship between the cumulative activation frequency of the equipment obtained in step S203 and the component replacement rate (step S204). Specifically, as described above, the cumulative activation number threshold acquisition unit 132 calculates the cumulative activation number that is equal to or higher than a predetermined replacement rate in the relationship between the cumulative activation number of the equipment obtained in step S203 and the component replacement rate. The cumulative activation frequency threshold value for replacement determination is used.

Next, the threshold determination unit 133 sets the determination regular inspection to the next regular inspection (step S205). The determination regular inspection in the process of FIG. 7 indicates regular inspection that is a determination target time for whether or not to recommend replacement of a part.
Then, the cumulative operation time acquisition unit 121 acquires the cumulative operation time of the maintenance target equipment for the period from the start of use of the part to the determination regular inspection for the part that is the target of the recommended replacement time determination (step S211). ). Specifically, the cumulative operation time acquisition unit 121 determines, from the information obtained in step S103 of FIG. 6, the replacement history (information indicating the start of use) of the part that is the target of the recommended replacement time, maintenance, and the like. Extract the operation history or operation mode of the target plant. Then, as described above, the cumulative operation time acquisition unit 121 acquires the cumulative operation time.
In FIG. 7, the part that is the target of the recommended replacement time is the part that is the processing target in the loop L11 in FIG.

Next, the threshold determination unit 133 determines whether or not the cumulative operation time obtained in step S211 is equal to or greater than the cumulative operation time threshold for replacement determination obtained in step S202 (step S212).
When it is determined that the cumulative operation time is equal to or greater than the cumulative operation time threshold for replacement determination (step S212: YES), the threshold determination unit 133 sets the recommended replacement time as the regular inspection time indicated by the determination regular inspection (step S251). .
Thereafter, the process of FIG. 7 is terminated and the process returns to the process of FIG.

  On the other hand, when it is determined in step S212 that the cumulative operation time is less than the cumulative operation time threshold for replacement determination (step S212: NO), the cumulative activation number acquisition unit 123 is a target for determining the recommended replacement time. For a part, the cumulative number of times the maintenance target facility is started in a period from the start of use of the part to the time of determination regular inspection is acquired (step S221). Specifically, the cumulative activation number acquisition unit 123 determines, from the information obtained in step S103 in FIG. 6, the replacement history (information indicating the start of use) of the part that is the target for determining the recommended replacement time, maintenance, and the like. Extract the operation history or operation mode of the target plant. Then, as described above, the cumulative activation number acquisition unit 123 acquires the cumulative activation number.

  Next, the threshold determination unit 133 determines whether or not the cumulative number of activations obtained in step S221 is equal to or greater than the cumulative activation number threshold for replacement determination obtained in step S204 (step S222). If it is determined that the cumulative number of activations is equal to or greater than the cumulative activation number threshold for replacement determination (step S222: YES), the process proceeds to step S251.

On the other hand, when it is determined in step S222 that the cumulative number of activations is less than the cumulative activation number threshold for replacement determination (step S222: NO), the threshold value determination unit 133 performs the remaining regular inspection (in the process of FIG. 7 this time). Then, it is determined whether or not there is a regular inspection that has not yet been set as a determination regular inspection (step S231).
When it is determined that the remaining regular inspection is present (step S231: YES), the threshold determination unit 133 changes the determination regular inspection to the regular inspection next to the determination regular inspection (step S241).
Then, it returns to step S211.

On the other hand, when it is determined in step S231 that there is no remaining regular inspection (step S231: NO), the threshold determination unit 133 does not set the recommended replacement time (step S261). This non-recommended replacement time indicates that it is determined that there is no need to replace parts within the scheduled range of regular inspection (however, the final regular inspection is not subject to determination).
After step S261, the process in FIG. 7 is terminated and the process returns to the process in FIG.

Returning to FIG. 6, after step S <b> 112, the control unit 120 acquires the predicted repair time of the part, which is the processing target in the loop L <b> 11 (step S <b> 113).
FIG. 8 is a flowchart showing a procedure of processing in which the control unit 120 acquires the predicted repair time of the part. The control unit 120 performs the process of FIG. 8 in step S113 of FIG.
In the process of FIG. 8, first, the time-replacement rate / repair rate relationship acquisition unit 122 uses the component maintenance history obtained in step S103 of FIG. The relationship with the repair rate is acquired (step S301).

  Next, the cumulative operation time threshold value acquisition unit 131 acquires a cumulative operation time threshold value for repair determination based on the relationship between the cumulative operation time of the equipment obtained in step S301 and the component repair rate (step S302). . Specifically, as described above, the cumulative operation time threshold value acquisition unit 131 calculates the cumulative operation time that is equal to or greater than a predetermined repair rate in the relationship between the cumulative operation time of the equipment obtained in step S301 and the component repair rate. The cumulative operation time threshold for repair determination is used.

In addition, the number-replacement rate / repair rate relationship acquisition unit 124 uses the component maintenance history obtained in step S103 in FIG. 6 and, as described above, the relationship between the cumulative number of startups of the equipment and the component repair rate. Is acquired (step S303).
Then, the cumulative activation number threshold value acquisition unit 132 acquires the cumulative activation number threshold value for repair determination based on the relationship between the cumulative activation number of equipment obtained in step S303 and the component repair rate (step S304). Specifically, as described above, the cumulative activation number threshold acquisition unit 132 calculates the cumulative activation number that is equal to or higher than a predetermined repair rate in the relationship between the cumulative activation number of the equipment obtained in step S203 and the component repair rate. The cumulative activation frequency threshold for repair determination is used.

Next, the threshold determination unit 133 sets the determination regular inspection to the next regular inspection (step S305). The determination regular inspection in the processing of FIG. 8 indicates regular inspection that is a determination target time of whether or not maintenance of parts is necessary.
Then, the cumulative operating time acquisition unit 121 determines the part for which the predicted repair time is to be determined from the latest replacement time (when the replacement has not been performed yet, at the start of use). The cumulative operation time of the maintenance target equipment during the period until the regular inspection is acquired (step S311).
In FIG. 8, the part that is the target of the predicted repair time is the part that is the target of processing in the loop L11 in FIG.

Next, the threshold determination unit 133 determines whether or not the cumulative operation time obtained in step S311 is equal to or greater than the cumulative operation time threshold for repair determination obtained in step S302 (step S312). When it is determined that the cumulative operation time is equal to or greater than the cumulative operation time threshold for repair determination (step S312: YES), the threshold determination unit 133 sets the predicted repair time to the regular inspection time indicated by the determination regular inspection (step S351). .
Thereafter, the process of FIG. 8 is terminated and the process returns to the process of FIG.

  On the other hand, when it is determined in step S312 that the cumulative operation time is less than the cumulative operation time threshold for repair determination (step S312: NO), the cumulative activation number acquisition unit 123 is a target for determining the predicted repair time. For a part, the cumulative number of activations of the maintenance target equipment during the period from the latest replacement (at the start of use if replacement has not yet been performed) to the judgment regular inspection is acquired (step S321). ).

  Next, the threshold determination unit 133 determines whether or not the cumulative activation number obtained in step S321 is equal to or greater than the cumulative activation number threshold for repair determination obtained in step S304 (step S322). If it is determined that the cumulative number of activations is equal to or greater than the cumulative activation number threshold for repair determination (step S322: YES), the process proceeds to step S351.

On the other hand, when it is determined in step S322 that the cumulative number of activations is less than the cumulative activation number threshold for repair determination (step S322: NO), the threshold determination unit 133 determines the remaining regular inspection (in the process of FIG. 8 this time). Then, it is determined whether or not there is a regular inspection that has not been set as a regular inspection (step S331).
When it is determined that the remaining regular inspection is present (step S331: YES), the threshold determination unit 133 changes the determination regular inspection to the regular inspection next to the determination regular inspection (step S341).
Thereafter, the process returns to step S311.

On the other hand, if it is determined in step S331 that there is no remaining regular inspection (step S331: NO), the threshold determination unit 133 sets the predicted repair time not yet set (step S361). This non-predicted repair time setting indicates that it is determined that there is no need to repair parts within the scheduled range of regular inspection (however, the final regular inspection is not subject to determination).
After step S361, the process of FIG. 8 is terminated and the process returns to the process of FIG.

Returning to FIG. 6, after step S <b> 113, the control unit 120 determines whether or not the processing of the loop L <b> 11 has been performed for all the parts that are the maintenance targets, and transitions according to the determination result (step S <b> 114). . If it is determined that there is a part that has not yet been processed in the loop L11, the process returns to step S111 to perform the process in the loop L11 for the remaining parts. On the other hand, when it is determined that the processing of the loop L11 has been performed for all components, the loop L11 is terminated.
After the loop L11, the control unit 120 generates a regular inspection plan table based on the obtained recommended replacement time and predicted repair time, and displays it on the display unit 102 (step S121).
Then, the process of FIG. 6 is complete | finished.

As described above, the cumulative operation time acquisition unit 121 acquires the cumulative operation time of the maintenance target equipment from the time when the maintenance work for the determination target component is performed during the scheduled maintenance work. In addition, the cumulative operation time threshold acquisition unit 131 determines a cumulative operation time threshold at which the maintenance work execution rate of the part is equal to or higher than a predetermined maintenance work execution rate from the relationship between the cumulative operation time of the equipment and the maintenance work execution rate of the part. Ask.
Then, the threshold determination unit 133 compares the cumulative operation time of the maintenance target facility from the time when the maintenance operation of the determination target component is performed with the cumulative operation time threshold. If it is determined that the cumulative operation time of the maintenance target facility from the time when the maintenance operation for the determination target component is performed is greater than the cumulative operation time threshold, the threshold determination unit 133 performs the maintenance operation for the determination target component earlier than the maintenance operation. Propose. More specifically, with regard to component replacement, the threshold determination unit 133 recommends that the determination target component be replaced earlier than during the maintenance work. As for repair, the threshold determination unit 133 predicts that it is necessary to repair the determination target component earlier than the maintenance work.

  As described above, the threshold value determination unit 133 determines the maintenance work timing time based on the maintenance work time, so that the replacement / repair time determination device 100 can support the formulation of the maintenance plan. In particular, planners for maintenance work scheduled to be conducted, such as regular inspections, should have performed replacement or repair of parts subject to maintenance at the regular inspection or prior to the regular inspection. Can be used to make a maintenance plan and to confirm the validity of the plan.

  Regarding the repair, the threshold determination unit 133 can determine the predicted repair time, so that the replacement / repair time determination device 100 can support the formulation of the maintenance plan. In particular, planners for maintenance work scheduled for regular inspections, such as scheduled inspections, should determine whether the parts subject to maintenance should be repaired at the regular inspection or whether they should be repaired before the regular inspection. Materials can be obtained and used to formulate maintenance plans and validate plans.

  In addition, the cumulative operation time acquisition unit 121 includes, for each of the plurality of determination target parts, the cumulative operation time of the maintenance target facility from the time when the maintenance operation of the determination target part is performed in each of the scheduled maintenance operations. To get. Then, the replacement / repair time determination unit 130 determines, for each of a plurality of maintenance operations, a determination target component that is recommended to be replaced during the maintenance operation and a determination target component that needs to be repaired during the maintenance operation.

As a result, the replacement / repair time determination device 100 can present parts that are recommended for replacement not only during the next maintenance operation but also during the previous maintenance operation. Accordingly, a maintenance plan maker can formulate not only the next maintenance work but also a longer-term maintenance plan by referring to the information presented by the replacement / repair time determination device 100.
By formulating a long-term maintenance plan, replacement parts arrangers can make arrangements with sufficient time. The manager of the maintenance worker can secure personnel with sufficient time. In addition, the operator of the maintenance target facility (for example, the owner of the maintenance target facility) can make an operation plan in the long term.

Regarding the repair, the cumulative operation time acquisition unit 121 predicts the parts that need repair for each of the plurality of maintenance operations, so that the planner of the maintenance plan uses the information presented by the replacement / repair time determination device 100. By referring to this, not only the next maintenance work but also a longer-term maintenance plan can be formulated.
By formulating a long-term maintenance plan, maintenance workers can arrange repair supplies with sufficient time. The manager of the maintenance worker can secure personnel with sufficient time.
In addition, the operator of the maintenance target facility can make a more accurate operation plan based on a more accurate maintenance plan. For example, the operator of the maintenance target facility can grasp the recommended replacement parts at the next regular inspection and the long-term parts replacement time, and can more easily secure the budget and pre-require the replacement time.

Also, the replacement / repair time determination unit 130 determines the cumulative operation time of the maintenance target equipment from the time of performing the maintenance work of the determination target part, the relationship between the cumulative operation time of the equipment and the maintenance work execution rate of the part, and the maintenance of the determination target part. The maintenance operation timing of the determination target component is determined on the basis of the cumulative number of times the maintenance target equipment has been started since the operation was performed and the relationship between the cumulative number of equipment startup times and the maintenance work execution rate of the component.
As described above, the replacement / repair time determination unit 130 determines the maintenance work timing with higher accuracy by determining the maintenance work timing based on the cumulative number of activations in addition to the cumulative operation time of the maintenance target equipment. obtain.

For example, a plant that starts and stops frequently and a plant that operates continuously may be damaged more severely in a plant that starts and stops frequently even if the operation time is the same. It is done.
Therefore, the replacement / repair time determination unit 130 can determine the maintenance operation timing with higher accuracy by determining the maintenance operation timing based on the cumulative number of activations.

<Third Embodiment>
FIG. 9 is a schematic block diagram showing a functional configuration of the replacement / repair time determination device according to the third embodiment of the present invention. In the figure, the replacement / repair time determination device 200 includes an operation input unit 101, a display unit 102, a storage unit 210, and a control unit 220. The storage unit 210 includes a replacement / repair record storage unit 111 and an immediate replacement designation part type storage unit 212. The control unit 220 includes a cumulative operation time acquisition unit 121, a time-exchange rate / repair rate relationship acquisition unit 122, a cumulative activation number acquisition unit 123, a number-replacement rate / repair rate relationship acquisition unit 124, and an immediate replacement designation. A part type acquisition unit 225 and a replacement / repair time determination unit 230 are provided. The replacement / repair time determination unit 230 includes a cumulative operation time threshold value acquisition unit 131, a cumulative activation number threshold value acquisition unit 132, a threshold value determination unit 133, and an immediate replacement designation part processing unit 234.
9, parts having the same functions corresponding to the respective parts in FIG. 3 are denoted by the same reference numerals (101 to 102, 111, 121 to 124, 131 to 133), and description thereof is omitted.

The replacement / repair time determination device 200 performs the same processing as the replacement / repair time determination device 100 (FIG. 3). In addition, the replacement / repair time determination device 200 supports horizontal deployment of parts replacement when there are parts to be replaced immediately.
The quick replacement specified part type storage 212 stores the type of the quick replacement specified part. The quick replacement specified part here is a part specified as a part to be replaced quickly. The type information of the quick replacement specified part stored in the quick replacement specified part type storage unit 212 is used as information common to each facility.
The quick replacement designation part type storage unit 212 may be configured as a device different from the replacement / repair time determination device 200.

The quick replacement specified part type acquisition unit 225 acquires the type of the quick replacement specified part. Specifically, the quick replacement specified part type acquisition unit 225 reads the type of the quick replacement specified part stored in the quick replacement specified part type storage unit 212.
The quick replacement designation part processing unit 234 compares the type of the determination target part with the type of the quick replacement specification part, and determines whether the determination target part corresponds to the quick replacement specification part. The quick replacement designation part processing unit 234 corresponds to an example of an immediate replacement necessity determination unit.
Further, when the quick replacement specified part processing unit 234 determines that the determination target part corresponds to the quick replacement specified part, the control unit 220 suppresses a process for obtaining a recommended replacement time for the determination target part, and replaces the part as soon as possible. It is recommended that

As described above, the quick replacement specified part processing unit 234 compares the model of the determination target part with the model of the quick replacement specified part to determine whether the determination target part corresponds to the quick replacement specified part. To do. Then, it is recommended that the replacement / repair time determination unit 230 (the quick replacement specified part type storage unit 212) replace the determination target part determined to correspond to the quick replacement specified part as soon as possible.
As a result, the replacement / repair time determination device 200 can prompt the user (for example, a maintenance plan maker) to replace the part as soon as possible when there is a part to be replaced immediately.

For example, when a structural defect is found in a certain part in a maintenance operation of a certain plant, the worker registers the part in the replacement / repair time determination apparatus 200 as an immediate replacement specified part, so that an immediate replacement specified part is obtained. The model is stored in the model storage unit 212.
Then, when a planner of a maintenance plan in another plant uses the replacement / repair time determination device 200, the replacement / repair time determination device 200 maintains that a part corresponding to an immediate replacement designated part is replaced immediately. Recommended for planners.
This enables maintenance planners to present to the client a more accurate periodic inspection menu by adding items that need to be deployed horizontally among countermeasures taken at other plants to the periodic inspection menu. It becomes. By performing maintenance work according to the regular inspection menu, horizontal deployment can be performed during regular inspection, and a reduction in the operating rate of the maintenance target equipment can be suppressed.

<Fourth Embodiment>
FIG. 10 is a schematic block diagram showing a functional configuration of the replacement / repair time determination device in the fourth embodiment of the present invention. In the figure, the replacement / repair time determination device 300 includes an operation input unit 101, a display unit 102, a storage unit 310, and a control unit 320. The storage unit 310 includes a replacement / repair record storage unit 111 and an unreplaced part storage unit 313. The control unit 320 includes a cumulative operation time acquisition unit 121, a time-replacement rate / repair rate relationship acquisition unit 122, a cumulative activation number acquisition unit 123, a number-replacement rate / repair rate relationship acquisition unit 124, and an unreplaceable part. A detection unit 326 and a replacement / repair time determination unit 330 are provided. The replacement / repair time determination unit 330 includes a cumulative operation time threshold value acquisition unit 131, a cumulative activation number threshold value acquisition unit 132, a threshold value determination unit 133, and an unreplaced part processing unit 335.
10, parts having the same functions corresponding to the respective parts in FIG. 3 are denoted by the same reference numerals (101 to 102, 111, 121 to 124, 131 to 133), and description thereof is omitted.

The unreplaceable parts storage unit 313 stores information indicating unreplaced parts. The non-replaceable parts here are parts that are recommended for replacement but not replaced among the determination target parts.
For example, a contractor for a regular inspection recommended replacement at the time of regular inspection, but the parts that were not replaced at the time of regular inspection were checked as a non-replaceable part by checking the regular inspection plan table displayed on the display unit 102. It is registered in the replacement / repair time determination device 300.

The unreplaceable part detection unit 326 detects unreplaced parts. Specifically, the non-replacement part detection unit 326 detects the non-replacement part by reading information indicating the non-replacement part stored in the non-replacement part storage unit 313.
Similar to the replacement / repair time determination unit 130 (FIG. 3), the replacement / repair time determination unit 330 determines whether or not the replacement of the determination target component is recommended during the maintenance work for the planned maintenance work. . However, the replacement / repair time determination unit 330 (unreplaced part processing unit 335) suppresses the process for the controller 320 to obtain the recommended replacement time for the unreplaced part, and replaces the part immediately. Is recommended.

As described above, the non-replaceable part detection unit 326 detects an unreplaceable part. Then, the replacement / repair time determination unit 330 determines whether or not the replacement of the determination target component is recommended during the maintenance operation for the scheduled maintenance operation, and replaces the non-replaced component during the maintenance operation. It is recommended.
Thereby, the replacement / repair time determination unit 330 does not need to determine whether or not replacement is recommended for an unreplaced part. Therefore, the processing amount of the replacement / repair time determination unit 330 can be reduced.

<Fifth Embodiment>
FIG. 11 is a schematic block diagram showing a functional configuration of the replacement / repair time determination system according to the fifth embodiment of the present invention. In the figure, the replacement / repair time determination system 1 includes a replacement / repair time determination device 400 and a terminal device 500. The replacement / repair time determination device 400 includes an operation input unit 101, a display unit 102, a storage unit 110, a communication unit 403, and a control unit 420. The storage unit 110 includes a replacement / repair record storage unit 111. The control unit 420 includes a cumulative operation time acquisition unit 121, a time-exchange rate / repair rate relationship acquisition unit 122, a cumulative activation number acquisition unit 123, a number-replacement rate / repair rate relationship acquisition unit 124, and a replacement / repair. And a time determination unit 130. The replacement / repair time determination unit 130 includes a cumulative operation time threshold value acquisition unit 131, a cumulative activation frequency threshold value acquisition unit 132, and a threshold value determination unit 133. The terminal device 500 includes an operation input unit 501, a display unit 502, a communication unit 503, and a control unit 520.
11, parts having the same functions corresponding to the respective parts in FIG. 3 are denoted by the same reference numerals (101 to 102, 110 to 111, 121 to 124, and 130 to 133), and description thereof is omitted.

The replacement / repair time determination system 1 determines a recommended replacement time or a predicted repair time, and displays the determination result on the terminal device 500. The replacement / repair time determination system 1 corresponds to an example of a maintenance work timing determination system.
The replacement / repair time determination device 400 performs the same processing as the replacement / repair time determination device 100 (FIG. 3). However, the replacement / repair time determination device 400 differs from the replacement / repair time determination device 100 in that it communicates with the terminal device 500. The replacement / repair time determination device 400 transmits the determination result of the recommended replacement time or predicted repair time of the determination target part to the terminal device 500.

In the replacement / repair time determination device 400, the communication unit 403 communicates with the terminal device 500 to transmit and receive various data. In particular, the communication unit 403 receives a determination start instruction for a recommended replacement time or a predicted repair time transmitted from the terminal device 500. In addition, the communication unit 403 transmits the determination result of the recommended replacement time and the predicted repair time of the determination target component to the terminal device 500. The communication unit 403 corresponds to an example of a transmission unit.
The control unit 420 performs processing similar to that of the control unit 120 (FIG. 3). In addition, the control unit 420 controls communication performed by the communication unit 403.

The terminal device 500 functions as a user interface of the replacement / repair time determination device 400. The terminal device 500 is configured by a computer, for example.
The operation input unit 501 has input devices such as a keyboard and a mouse, for example, and accepts user operations. In particular, the operation input unit 501 receives a user operation requesting determination of replacement time or repair time.
The communication unit 503 transmits a replacement time or repair time determination request to the replacement / repair time determination device 400 in accordance with a user operation. Further, the communication unit 503 receives the determination result of the replacement / repair time determination device 400. The communication unit 503 corresponds to an example of a receiving unit.

The display unit 502 includes a display screen such as a liquid crystal panel or an organic EL panel, and displays various images such as a moving image, a still image, and text (characters). In particular, the display unit 502 displays the determination result of the replacement / repair time determination device 400.
The control unit 520 controls each unit of the terminal device 500 and executes various functions. The control unit 520 is realized by, for example, a CPU included in the terminal device 500 reading and executing a program from a storage device included in the terminal device 500.

As described above, the replacement / repair time determination device 400 determines the recommended replacement time / predicted repair time, and transmits the determination result to the terminal device 500. Then, the terminal device 500 displays the determination result of the recommended replacement time / predicted repair time.
By installing the terminal device 500 at the site of the repair target facility, the operator of the maintenance target facility can directly grasp the recommended replacement time and predicted repair time. Thereby, the replacement / repair time determination system 1 can improve the convenience of the operator of the maintenance target facility. For example, the operator of the maintenance target facility can refer to the result of the recommended replacement timing at any time to grasp the parts that need replacement and reflect them in the operation plan, making a more accurate operation plan. it can.

Further, the replacement / repair time determination device 400 determines, for each of a plurality of maintenance operations, a determination target component that is recommended to be replaced during the maintenance operation.
As a result, the operator of the maintenance target facility can directly grasp the recommended replacement time in the longer term. In this respect, the replacement / repair time determination system 1 can further enhance the convenience of the operator of the maintenance target facility.

Note that a computer-readable program for realizing all or part of the functions of the maintenance work timing determination device 10, the replacement / repair time determination devices 100, 200, 300, and 500, and the replacement / repair time determination system 1 can be read. The processing of each unit may be performed by recording on a recording medium, reading the program recorded on the recording medium into a computer system, and executing the program. Here, the “computer system” includes an OS and hardware such as peripheral devices.
Further, the “computer system” includes a homepage providing environment (or display environment) if a WWW system is used.
The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Furthermore, the “computer-readable recording medium” dynamically holds a program for a short time like a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line. In this case, a volatile memory in a computer system serving as a server or a client in that case, and a program that holds a program for a certain period of time are also included. The program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes design changes and the like without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 Replacement / repair time determination system 10 Maintenance work timing determination device 11 Cumulative operation time acquisition unit 12 Time-maintenance work execution rate relationship acquisition unit 13 Maintenance work timing determination unit 14 Output unit 100, 200, 300, 400 Replacement / repair time determination Device 101, 501 Operation input unit 102, 502 Display unit 110, 210, 310 Storage unit 111 Replacement / repair record storage unit 120, 220, 320, 420, 520 Control unit 121 Cumulative operation time acquisition unit 122 Time-exchange rate / repair Rate relationship acquisition unit 123 Cumulative activation number acquisition unit 124 Number-exchange rate / repair rate relationship acquisition unit 130, 230, 330 Replacement / repair time determination unit 131 Cumulative operation time threshold acquisition unit 132 Cumulative activation frequency threshold acquisition unit 133 Threshold determination unit 212 Quick replacement specification part model storage unit 225 Quick replacement specification part model Acquisition unit 234 Immediate replacement designation part processing unit 313 Unreplaced part storage unit 326 Unreplaced part detection unit 335 Unreplaced part processing unit 403, 503 Communication unit 500 Terminal device

Claims (10)

For a determination target part that is a part in a maintenance target facility, a cumulative operation time acquisition unit that acquires a cumulative operation time of the maintenance target facility from the time of maintenance work of the determination target component;
A time-maintenance work execution rate relationship acquisition unit that acquires the ratio of parts that have undergone maintenance work for each cumulative operation time of the facility based on the maintenance work results of the same part as the determination target part;
Based on the cumulative operation time of the maintenance target equipment since the execution of the maintenance work of the determination target part, and the ratio of the maintenance completed parts for each cumulative operation time of the equipment, the maintenance work timing of the determination target part A maintenance work timing determination unit that performs the determination;
An output unit for outputting a determination result of the maintenance work timing;
A maintenance work timing determination device comprising: The cumulative operation time acquisition unit acquires the cumulative operation time of the maintenance target equipment from the time of maintenance work of the determination target component at the time of scheduled maintenance work,
The maintenance work timing determination unit includes:
A cumulative operation time threshold value obtaining unit for obtaining a cumulative operation time threshold value at which the maintenance work execution rate of the part is equal to or higher than a predetermined maintenance work execution rate, from the ratio of parts that have been subjected to maintenance work for each cumulative operation time of the facility;
The cumulative operation time of the maintenance target facility since the maintenance operation of the determination target component is compared with the cumulative operation time threshold value of the maintenance target facility since the maintenance operation of the determination target component is compared. Is determined to be larger than the cumulative operation time threshold, a cumulative operation time comparison unit that determines that it is appropriate to perform maintenance work on the determination target component earlier than during the maintenance work,
The maintenance work timing determination device according to claim 1, further comprising: The cumulative operation time acquisition unit, for each of the plurality of determination target parts, in each of a plurality of scheduled maintenance work, the cumulative operation time of the maintenance target equipment from the time of performing the maintenance work of the determination target part Get
The maintenance operation timing determination unit, for each of the time said plurality of maintenance work, the maintenance work during the determined determination target component is appropriate to perform the maintenance work, according to claim 1 or 2, characterized in that Maintenance work timing judgment device. An urgent replacement designated part type acquisition unit that obtains a model of an urgent replacement designated part that is a part designated as a part to be replaced immediately;
Compare the model of the determination target part with the model of the quick replacement specified part, and determine whether the determination target part corresponds to the quick replacement specified part;
Comprising
The said maintenance work timing determination part recommends replacing | exchanging as soon as possible about the said determination object part determined to correspond to the said quick replacement designation | designated part, The Claim 1 characterized by the above-mentioned. The maintenance work timing determination device described. Comprising a non-replaceable part detection unit for detecting an unreplaced part that is a part that is recommended but not replaced among the determination target parts;
The maintenance operation timing determination unit determines whether or not the replacement of the determination target component is recommended during the maintenance operation, and replaces the unreplaced component during the maintenance operation. The maintenance work timing determination apparatus according to claim 1, wherein the maintenance work timing determination apparatus according to claim 1 is recommended. A cumulative activation number acquisition unit for acquiring the cumulative activation number of the maintenance target equipment from the time of maintenance work of the determination target component;
The number of times of obtaining the relationship between the cumulative number of startups of the equipment and the maintenance work execution rate of the part obtained from the maintenance work results of the same part as the determination target part-maintenance work execution rate relationship acquisition unit;
Comprising
The maintenance work timing determination unit includes a cumulative operation time of the maintenance target equipment since the maintenance work of the determination target part, a ratio of parts subjected to the maintenance work for each cumulative operation time of the equipment, and maintenance of the determination target part Based on the cumulative start count of the maintenance target equipment from the time of work execution, and the relationship between the cumulative start count of the equipment and the maintenance work execution rate of the part, the maintenance work timing of the determination target part is determined. The maintenance work timing determination apparatus according to claim 1, wherein the maintenance work timing determination apparatus according to claim 1. A maintenance operation timing determination system comprising a maintenance operation timing determination device and a terminal device, and determining a maintenance operation timing of a determination target component that is a component in a maintenance target facility,
The maintenance work timing determination device is:
A cumulative operation time acquisition unit for acquiring a cumulative operation time of the maintenance target equipment from the time of maintenance work of the determination target component;
A time-maintenance work execution rate relationship acquisition unit that acquires the ratio of parts that have undergone maintenance work for each cumulative operation time of the facility based on the maintenance work results of the same part as the determination target part;
Based on the cumulative operation time of the maintenance target equipment since the execution of the maintenance work of the determination target part, and the ratio of the maintenance completed parts for each cumulative operation time of the equipment, the maintenance work timing of the determination target part A maintenance work timing determination unit that performs the determination;
A transmission unit that transmits the determination result of the maintenance work timing of the determination target component to the terminal device;
Comprising
The terminal device
A receiving unit that receives a determination result of the maintenance work timing determination device;
A display unit for displaying a determination result of the maintenance work timing determination device;
A maintenance work timing determination system comprising: The cumulative operation time acquisition unit, for each of the plurality of determination target parts, in each of a plurality of scheduled maintenance work, the cumulative operation time of the maintenance target equipment from the time of performing the maintenance work of the determination target part Get
8. The maintenance according to claim 7, wherein the maintenance operation timing determination unit determines, for each of the plurality of maintenance operations, a determination target component that is appropriate to perform the maintenance operation during the maintenance operation. Work timing judgment system. A maintenance work timing determination method for a maintenance work timing determination device,
For a determination target part that is a part in the maintenance target facility, a cumulative operation time acquisition step of acquiring a cumulative operation time of the maintenance target facility from the time of performing maintenance work on the determination target component;
Based on the maintenance work performance of the same part as the determination target part, a time-maintenance work rate relationship obtaining step for obtaining a ratio of parts subjected to maintenance work for each cumulative operation time of the facility;
Based on the cumulative operation time of the maintenance target equipment since the execution of the maintenance work of the determination target part, and the ratio of the maintenance completed parts for each cumulative operation time of the equipment, the maintenance work timing of the determination target part A maintenance work timing determination step for performing the determination;
An output step for outputting a determination result of the maintenance work timing;
A maintenance work timing determination method comprising: To a computer as a maintenance work timing judgment device,
For a determination target part that is a part in the maintenance target facility, a cumulative operation time acquisition step of acquiring a cumulative operation time of the maintenance target facility from the time of performing maintenance work on the determination target component;
Based on the maintenance work performance of the same part as the determination target part, a time-maintenance work execution rate relationship obtaining step for obtaining a ratio of parts subjected to maintenance work for each cumulative operation time of the facility;
Based on the cumulative operation time of the maintenance target equipment since the execution of the maintenance work of the determination target part, and the ratio of the maintenance completed parts for each cumulative operation time of the equipment, the maintenance work timing of the determination target part A maintenance work timing determination step for performing the determination;
An output step for outputting a determination result of the maintenance work timing;
A program for running

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