JPH11327626A - Maintenance plan supporting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To execute an appropriate maintenance plan in which operation results of devices, etc., are considered by obtaining the next maintenance predetermined day and maintenance object devices based on maintenance inspection standards of devices constituting a machinery and maintenance records. SOLUTION: When a processor 10 of a maintenance plan supporting device 1 is started, a processing selection menu is shown on an output device 5. A maintenance plan object list selected by an input device 4 is shown from the menu. When a plan object is selected here, the processor 10 is connected to a machinery 2 selected with a communication line 3 through a communication input I/F circuit 11 and receives operation results of a hardware component of the machinery 2. The operation results are stored in a 3rd memory 16 and also, hardware components that are maintenance plan objects are listed up from a 2nd memory 15. Next, a maintenance plan is worked out based on the maintenance inspection standard of each device stored in a 1st memory 14 and maintenance records stored in the memory 16 and the next maintenance predetermined day and maintenance object devices are obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a maintenance plan support device for performing a maintenance plan of a plurality of devices constituting a machine.

[0002]

2. Description of the Related Art Regular maintenance and inspection management of a machine including a plant such as a power plant (hereinafter, simply referred to as a machine) is important for normal operation of the machine.

[0003] For such maintenance and inspection management, an equipment maintenance plan support system is used. FIG. 11 is a diagram illustrating an example of a conventional equipment maintenance plan support system. In FIG. 11, a processing device 20 is provided as control means of the equipment maintenance plan support system.

As a database, a first memory device 2
1, the information on the device configuration, the operation start date and time stored in the second memory device 22, and the information on the maintenance and inspection cycle stored in the third memory device 23.

[0005] The processing device 20 includes these memory devices 21 to 21.
The next inspection time and inspection items are extracted based on the data on the device configuration from 23, the operation start date and time, and the information on the maintenance inspection cycle.

Further, a maintenance person or a user displays various kinds of information relating to the mechanical device, an input device 24 for inputting a maintenance record, and guide information for guiding the input by the input device 24. An output device 25 is provided for outputting and displaying the inspection time and inspection items extracted by the device 20 as maintenance plan support information.

In such a system, the maintenance and inspection cycle in the database stored in the memory device 23 is inputted by the maintenance person or the user from the input device 24, and is determined in advance in correspondence with each device. It is stipulated.

[0008] However, the time when each device should originally require maintenance and inspection differs depending on the operation results. For this reason, it is often the case that conducting a maintenance plan according to a fixed maintenance inspection cycle at the beginning for a device corresponds to the actual situation together with the actual operation results. That is, the above-mentioned technology does not enable an appropriate maintenance plan in consideration of the operation results.

Further, as a prior art, Japanese Patent Application Laid-Open No. 9-97
There is a technique described in Japanese Patent Publication No. 285/285. In this technique, an aging database is provided, and based on the aging database, the aging status of devices and components is obtained, and the maintenance cycle of inspection, replacement, inspection, and the like is calculated based on the results.

[0010] However, the above-mentioned publication discloses that the equipment of the plant and the equipment, design specification information, inspection, replacement, and maintenance information of the component parts are stored as the aging database.

Therefore, even in the technology disclosed in this publication, the equipment to be considered in the maintenance plan and the equipment and design specification information of the equipment and its components are considered in the maintenance plan. is not.

[0012] Further, there is no disclosure intended to formulate a maintenance plan in consideration of replacement with a new model developed and a succeeding model due to technological progress.

[0013]

SUMMARY OF THE INVENTION In view of the above, an object of the present invention is to provide an appropriate maintenance plan in consideration of the operation results of the equipment constituting a mechanical device in order to solve the above-mentioned problems in the prior art. An object of the present invention is to provide a maintenance plan support device that can be executed.

It is a further object of the present invention to provide a maintenance plan support apparatus capable of formulating a facility renewal plan in consideration of replacement with a newly developed new machine and a succeeding machine.

[0015]

According to a first aspect of the invention, there is provided a maintenance plan supporting apparatus according to the present invention, which is connected to a mechanical device including a plurality of devices through a communication line. A memory device that stores a database having at least maintenance and inspection standards for the plurality of devices, a device configuration and maintenance records of the mechanical device, and data on interest rates, and a mechanical device to be obtained through the communication line, for which a maintenance plan is to be formulated. And a processing device for determining a next scheduled maintenance date and a maintenance target device based on the operation results of the above and the maintenance inspection standards and maintenance records of the devices constituting the machine device in the database stored in the memory device.

In the above configuration, the processing device extracts a renewable succeeding device from the device configuration of the mechanical device in the database stored in the memory device, and based on the interest rate data in the database, retrieves the succeeding device. It is characterized in that a life cycle cost in a case where the equipment is updated and a case where the equipment is not updated in succession are obtained, and a facility renewal plan is obtained from a comparison result of the life cycle costs.

Further, as another aspect of the maintenance plan support device according to the present invention, the maintenance plan support device includes a memory device for storing a database, a processing device, and an output device. Then, the processing device displays a process selection menu on the output device at the time of start-up, and the database update process, the maintenance plan formulation process of the equipment constituting the machine device, or the update plan of the machine device selected from the process selection menu. It is characterized by executing a formulating process.

Further, as a specific mode, the machine is connected to the machine through a communication line, and the maintenance plan formulation processing of the machine is performed by using the operation result of the machine targeted for maintenance plan formulation obtained through the communication line. The next scheduled maintenance date and the equipment to be maintained are obtained based on maintenance inspection standards and maintenance records of the equipment constituting the machine in the database stored in the memory device.

Further, as another aspect, the renewal planning process of the equipment constituting the mechanical device extracts the renewable successor from the device configuration of the mechanical device in the database stored in the memory device. It is characterized in that the life cycle cost in the case of updating to the succeeding machine and the life cycle cost in the case of not updating to the succeeding machine are obtained from the data on the interest rate in the database, and the equipment renewal plan is obtained from the comparison result.

Further objects and features of the present invention will become apparent from the following description of embodiments of the present invention.

[0021]

Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the same or similar components will be described with the same reference numerals or reference symbols.

FIG. 1 is a block diagram showing an embodiment of an equipment maintenance plan support system having a maintenance plan support apparatus according to the present invention. In FIG. 1, a maintenance plan support device 1 according to the present invention is provided as a main device of an equipment maintenance plan support system, and is connected to a plurality of mechanical devices 2 through communication lines 3. Therefore, the plurality of mechanical devices 2 can be located at a remote location with respect to the maintenance plan support device 1.

The maintenance plan support apparatus 1 is further connected with an input device 4 and an output device 5 as an interface device with a maintenance person or a user (hereinafter referred to as a user). The input device 4 is an input device such as a keyboard used for inputting various information regarding the mechanical device 2 and the devices constituting the device, a maintenance record, and the like. The input device 4 may have its own intelligent function if necessary.
May be configured integrally with the main body.

The output device 5 includes a display device such as a CRT display device and a printer device. As will be described later, as input support of the input device 4, display of an input selection item menu, the result of formulating a maintenance support plan, etc. Is displayed.

The maintenance plan support device 1 includes a processing device 10 as a central function, a communication input interface (I / F) circuit 11 for interfacing with the communication line 3, and an input interface (I / F) for interfacing with the input device 4.
/ F) circuit 12 and an output interface (I / F) circuit 13 for interfacing with the output device 5.

The communication input I / F circuit 11, input I
/ F circuit 12 and output I / F circuit 13
Connected to 0.

Further, in an embodiment of the present invention, which will be described in detail later, an equipment database, an equipment configuration database, and a database relating to operation and maintenance required for executing the maintenance plan support system are stored, respectively. It has first, second, and third writable / readable memory devices 14, 15, and 16.

These first, second and third memory devices 1
4, 15 and 16 may be independent memory devices depending on the size of the database, or may be configured by dividing the memory address area into three in one memory device.

FIG. 2 shows an operation flow of the embodiment of the maintenance plan support system shown in FIG. here,
Prior to describing the operation according to the operation flow of FIG. 2, the databases stored in the memory devices 14, 15, 16 will be described. The contents of these databases are
The input is performed by the user through the input device 4. The data is sent from the mechanical device 2 through the communication line 3.

The contents of the database input by the user using the input device 4 include, for example, specifications of various devices constituting the mechanical device 2, maintenance and inspection criteria, introduction, operation, and removal in the first memory device 14. A device database of costs and other data is stored.

The device database is arranged in a table as shown in FIG. 3 as one embodiment. The contents of each item in the table of FIG. 3 are as follows. (A) Device name: A name given to a device. For example, a motor is a DC motor, an AC motor, or the like. In the example of FIG. 3, a mixed flow pump and an axial flow pump are shown as device names. (B) Model number: A management number uniquely assigned to a device model. In the example of FIG. 3, PS88-03, PS88-0
5, PJ88-20 and the like are model numbers. (C) Specification: The specification value of the device. For example, the rated output, current, voltage, power factor, and the like for a motor, and the flow rate-head characteristic for a pump. In the example of FIG. 3, for example, the specification value of the mixed flow pump of model number PS88-05 is the rated flow 5. 0m ³ / min, rated pressure 5Kgf / c
m ² , 30 kW, 1200 rpm. (D) Maintenance inspection standard: This is a standard for determining the time for performing maintenance and inspection of the device, and there are various standards such as one based on a maintenance interval and one based on an accumulated operation time. In the example of FIG.
As a safety check reference for each of the mixed flow pumps of model numbers PS88-03 and PS88-05 and the axial flow pump of model number PJ88-20, the time when the cumulative operation time of 8760 hours is reached is the time to be maintained. Also, the model number P
For the mixed flow pump in S98-03, the integrated operation time of 11680 hours is defined in the safety inspection standard. (E) Costs: There are the following types of costs. Installation cost: This is the cost required to install the device, and consists of the device body price and the installation cost. As an example, model number PS
The unit price of the mixed flow pump of 88-03 is 14, and the installation cost is 3. Note that the numerical value is the initial purchase price of 10
This is the ratio when it is set to 0, and is the same in the following description. Operating costs: costs required for the operation of the equipment, including maintenance and inspection costs and operating costs. The operating cost is a value obtained by converting a power cost (for example, an electric power cost), a fuel cost, and the like required during driving into a monetary amount. As an example, the maintenance and inspection cost of the mixed flow pump of model number PS88-03 is four. On the other hand, the operating cost for each device is calculated by power consumption × power unit price × operating time. Removal cost: The cost required for dismantling and removing the device. In the example of FIG. 3, it is common to each device and is 6.7. (F) Update target device: A device that can be replaced with the device is indicated by a model number. The example of FIG. 3 shows that the mixed flow pump of model number PS88-03 can be replaced with the mixed flow pump of model number PS98-03.

Next, in the second memory device 15, data relating to the device configuration for each machine device is stored as a device configuration database. Such a device configuration database is sent from the corresponding mechanical device 2 through the communication line 3.

These data are shown in FIG.
And the contents of each item are as follows. (A) Plant (mechanical device) name: A name uniquely given to a mechanical device including the plant. In the example of FIG. 4, the mechanical devices connected through the communication line 3 are a plant A, a plant B, a plant C, a mechanical device A, and a mechanical device B. (B) Device name: Stores the model numbers of all devices constituting the mechanical device as a set. The name of the device needs to be unique within the plant or the mechanical device. In FIG. 4, for example, the mechanical device A includes devices of model numbers PJ88-20 and HE87-102, and the device names are defined as a solution pump A and a heat exchanger A, respectively.

Here, the model number corresponds to the model number in the device database of the first memory device 14. Therefore, it can be seen that the axial pump of model number PJ88-20 shown in FIG.

Further, the third memory device 16 stores a database relating to operation and maintenance, such as data including the operation start date, operation record, and maintenance record of the mechanical device, and data relating to past, present, and future interest rates. I do. That is, the data including the operation start date, operation record, maintenance record, and the like of the former mechanical device is transmitted from the corresponding mechanical device 2 through the communication line 3, and the data relating to the past, present, and future interest rates of the latter is stored in the user. Are input from the input device 4 and stored in the third memory device 16 as databases relating to operation and maintenance.

Here, the operation record means the operation time of the mechanical device 2 and the accumulated operation time of each device such as a pump and a motor, and the maintenance record is the inspection date and time of each device.

Returning to the operation flow of FIG. 2, the operation of the embodiment of the equipment maintenance plan support system including the maintenance plan support apparatus 1 according to the present invention based on the contents of the database in each of the memory devices will be described.

The operation flow shown in FIG.
A control program stored in a storage device such as a ROM (read only memory) or a magnetic disk (not shown) is executed and controlled by a CPU in the processing device 10.

First, when the processing device 10 of the maintenance plan support device 1 of FIG. 1 is started, the input device 4, the output device 5,
The input I / F circuit 1 as these interface circuits
2, output I / F circuit 13, and communication input I / F circuit 1
1 is started (step S1).

Next, a process selection menu is displayed on the output device 5 (step S2). FIG. 5 is an example of a display screen of the output device 5 for explaining the database update.
A processing selection menu is displayed as shown in FIG.

The input device 4 is operated by the user to
Consider a case where the cursor is moved to "database update" and a database update process is selected (step S3).

With this selection, the processing device 10 stores the list of databases stored in the first, second, and third memory devices 14, 15, and 16 in the output device 5 as shown in FIG. It is displayed (step S4).

Therefore, the user moves the cursor using the input device 4 and selects a database to be updated from the displayed list of databases (step S).
5). In the example of FIG. 5B, the device database stored in the first memory device 14 is selected. Next, the contents of the selected table of the device database shown in FIG. 3 are updated by the user (step S6).

If such an operation is to be performed for the equipment configuration database and the operation and maintenance database in the same manner, if necessary, the determination in step S7 of FIG. 3 is NO until all the target database updates are completed, and the operation proceeds to step S2. Return.

Next, a case will be considered in which the "prepare maintenance plan" process is selected on the process menu selection screen displayed by the menu display (step S2). FIG. 6 is an example of a display screen of the output device 5 for explaining the preparation of a maintenance plan.

As shown in FIG. 6 (a), the user moves the cursor using the input device 4, and "creates a maintenance plan".
Is selected (step S3), a maintenance plan target list, which is a list of mechanical devices, is displayed as shown in FIG. 6B.

Therefore, the user similarly selects the mechanical device 2 to be a maintenance plan target from the displayed list by using the input device 4 (step S8). FIG.
In the example of (b), the plant B is selected as a maintenance plan target.

Next, when a maintenance plan target is selected, the processing device 10 passes through the communication input I / F circuit 11 to the mechanical device 2 (here, the selected maintenance plan target) connected by the communication line 3. (Corresponding to the plant B), and receives the operation results of various devices constituting the mechanical device 2 (step S9).

In the mechanical device 2, since the operation results are recorded in a recording device (not shown), the operation record is easily transmitted through the communication line 3 in response to a request from the maintenance plan support device 1. It is possible to In this manner, the operation results transmitted from the mechanical device 2 and received by the maintenance plan support device 1 are stored in the memory device 16 of the maintenance plan support device 1 as a part of the operation and maintenance database.

Further, the processing device 10 lists all the devices constituting the maintenance plan from the second memory device 15 (step S10). All the corresponding devices can be easily searched from the component device table shown in FIG. 4, which is configured for each plant (machine device) name in the device configuration database.

Next, the maintenance / inspection criteria of each device recorded in the table of the device database of FIG. 1 stored in the first memory device 14 and the data stored in the third memory device 16 up to the previous time. Maintenance record and communication input I first
A maintenance plan is formulated using the operation results of the corresponding device received through the / F circuit 11 (step S11).

That is, based on the operation results of the mechanical device 2 received through the communication line 3 and the maintenance inspection standards and maintenance records of the devices constituting the relevant mechanical device 2 in the database, the next scheduled maintenance date and the maintenance target device are determined. Ask.

In the record of the last maintenance, for example, the maintenance date and the accumulated operation time are recorded. Considering the mixed flow pump used as the feed pump A of model number PS88-03, which constitutes the plant B in FIG. 4, the accumulated operation time up to the last maintenance time and the current integrated time received through the communication input I / F circuit 11 are shown. From the accumulated operation time, the operation time of the feedwater pump A since the last maintenance can be obtained.

Except for a pump that operates continuously at all times, the operation time is shorter than the actual elapsed date and time. Therefore, the maintenance and inspection standard “8760 hours” of the mixed flow pump of the corresponding model number PS88-03 shown in FIG. By this comparison, it is possible to calculate the date and time when the corresponding maintenance inspection reference time “8760 hours” is reached.

With the maintenance plan thus determined, as shown in FIG. 8, the next scheduled maintenance date and the equipment to be maintained are obtained as maintenance plan information and displayed on the output device 5. Next, until the user inputs the end of the maintenance plan target selection from the input device 4, the process is repeated for other plants or mechanical devices to be the maintenance plan targets (step S7).

FIG. 7 is an example of a display screen of the output device 5 for explaining a facility update plan. In the selection menu in step S3, as shown in FIG. 7A, a case is considered in which the input device 4 moves the cursor to "establish a facility renewal plan" and makes a selection. When "Formulation of equipment renewal plan" is selected, the list of objects of the equipment renewal plan is displayed as shown in FIG.
As shown in (b), a list of plants and machinery is displayed.

From this list, a plant or a machine to be subjected to the equipment renewal plan is selected (step S).
12). In the example of FIG. 7B, the plant C is selected.

Next, the processing device 10 stores all the devices constituting the selected plant C in the second memory device 1 shown in FIG.
5, a list is created based on the device configuration database stored in the first memory device 1 for each device.
The corresponding device to be updated is extracted from the device database shown in FIG. 3 and stored as a table in FIG.

Next, the processing apparatus 10 calculates the life cycle cost when the current device configuration is continued from the viewpoint of the operation cost taking the interest rate into consideration, starting from the operation start date and time (step S14). The interest rate data is included in the operation and maintenance database stored in the third memory device 16.

Further, the processing apparatus 10 calculates the life cycle cost when the equipment is updated to the equipment obtained as the update equipment candidate, the cost from the operation start date to the present time, and the future cost when it is assumed that the equipment is updated today. To the third
Is calculated in consideration of the present and future interest rates included in the database stored in the memory device 16 (step S15).

Here, a specific example of the calculation of the life cycle cost will be described. FIG. 9 is a table showing an example in which the life cycle cost of the plant C is estimated. In FIG. 9, the first half of the year (from the 0th year to the 12th year) is shown in FIG. 9A.
FIG. 9B shows the latter half of the year (13th to 25th years).

In FIG. 9, for example, if ten years have passed since the start (operation) of the plant C, the actual values are input up to the ninth year in the table of FIG. Operating costs include standard annual maintenance costs, optional maintenance and inspection costs for each device, and operating costs. Based on the above-mentioned operation results and maintenance inspection standards, the maintenance and inspection costs are assumed to be incurred once every 2 years, 3 years or 4 years as in the 9th year and before, even after the 10th year.

The operating cost is the sum of the operating costs of each device. For the 10th and subsequent years, it is calculated based on the expenses for the 9th year and taking into account the real interest rate (3% in this example). The life cycle cost can be obtained by accumulating these annual costs from the time of operation. In the example of FIG. 9, the cost when the plant C has been operated for 25 years is shown. Note that the cost column in the third column from the left in FIG. 9 is a value at the time of operation and is used for explanation. However, in actuality, the calculation of the life cycle cost is based on the cost actually generated in the past and the user every year. The updated device database of FIG. 3 is used,
This value is not used.

On the other hand, after 10 years, the mixed flow pump (model number PS88) used as the water supply pump A was used.
Suppose that PS98-03 was developed as a successor to the PS-03 (see Fig. 3).

At this time, if the pump is replaced with a succeeding device, the removal cost of the existing pump and the introduction cost of the newly introduced pump are temporarily generated. From FIG. 3, the removal cost of the existing pump and the introduction cost of the newly introduced pump are respectively 6.
7 and 18 (the initial introduction price is 100).

Further, as shown in FIG. 3, the maintenance inspection standard is extended compared to the existing pump (extended from 8760 hours to 11680 hours), so that the maintenance interval is expected to be extended. Further, if the power consumption is reduced by 5 kW for the newly developed pump, and as a result, the whole plant is reduced by 5%, the life cycle cost when the pump is newly replaced with the newly introduced pump is as shown in FIG. Therefore, 2
After the first year, the cost of not renewing the pump will be lower.

The calculated two life cycle costs as shown in FIGS. 9 and 10 are displayed on the output device 5 by the processing device 10. At the same time, the user
A display command is input from the input device 4 to the processing device 10 in order to display the specifications of the device database stored in the memory device 14 on the output device 5.

Therefore, the user checks whether or not there is any equipment that cannot be updated in the equipment update plan planned by the maintenance plan support device 1 due to the specification of the equipment (step S1).
6). If there is a device that cannot be updated, the fact is input to the processing device 10 by the input device 4, and the device is excluded from the processing target. Then, the processing is performed again from the processing of step S13, and if there is no device that cannot be updated, this becomes the equipment update plan.

Next, when the user inputs an end command from the input device 4, the process is terminated (step S).
7). Otherwise, the process returns to step S2, and a process selection menu is displayed.

[0070]

According to the maintenance plan supporting apparatus of the present invention whose embodiment has been described with reference to the drawings, the following effects can be obtained.

First, the maintenance plan support apparatus of the present invention is connected to a machine composed of a plurality of devices through a communication line, and performs maintenance inspection standards for the plurality of devices, a device configuration of the machine and a maintenance record. A memory device for storing a database having data relating to interest rates, operation results of a machine device to be subjected to maintenance planning, which is obtained through the communication line, and devices constituting the machine device in the database stored in the memory device Based on the maintenance inspection standards and maintenance records, a processing device that calculates the next scheduled maintenance date and equipment to be maintained is provided. With this configuration, it is possible to formulate an appropriate maintenance plan in consideration of the operation results of the devices and the like that constitute the mechanical device. In addition, since the above-mentioned operation results are obtained from the mechanical device through the communication line, it is possible to easily formulate a maintenance plan for a plurality of mechanical devices arranged at remote locations in consideration of the operation results.

Second, in the above configuration, the processing device extracts a renewable successor from the device configuration of the mechanical device in the database stored in the memory device, and based on the data on the interest rate in the database. Then, the life cycle cost in the case of updating to the successor device and the life cycle cost in the case of not updating to the successor device are obtained, and the equipment update plan is obtained from the comparison result of the life cycle costs.
Therefore, it is possible to formulate a maintenance plan that takes into account replacement with newly developed new equipment and replacement equipment.

Third, as another embodiment according to the present invention, there is provided a memory device for storing a database, a processing device, and an output device. Then, the processing device displays a process selection menu on the output device at the time of start-up, and the database update process, the maintenance plan formulation process of the equipment constituting the machine device, or the update plan of the machine device selected from the process selection menu. Execute the formulation process. With this configuration, the user can
Using the input device and the output device as interfaces, it is possible to select and easily execute a database update process, a maintenance plan formulation process for the equipment constituting the mechanical device, or an update plan formulation process for the equipment. .

Further, fourth, as a specific mode, the third
In the configuration of the above, the machine device is connected through a communication line, and the maintenance plan formulation processing of the machine device is performed through the communication line, the operation result of the machine device for which the maintenance plan is to be created, and stored in the memory device. The next scheduled maintenance date and the equipment to be maintained are obtained based on the maintenance inspection standards and maintenance records of the equipment constituting the machine in the database. According to this aspect, it is also possible to formulate an appropriate maintenance plan in consideration of the operation results of the devices and the like constituting the mechanical device through the communication line and the operation results obtained from the mechanical device.

Further, fifthly, in the third configuration, the update plan formulation processing of the equipment constituting the mechanical device can be updated from the equipment configuration of the mechanical device in the database stored in the memory device. Then, a life cycle cost is calculated based on the interest rate data in the database when updating to the succeeding machine and when not updating to the succeeding machine, and a facility renewal plan is obtained from the comparison result.

According to the fifth configuration, the user can
An input device and an output device are used as interfaces, and a maintenance plan of a plurality of mechanical devices arranged at a remote location can be easily formulated in consideration of the operation results through a communication line.

The embodiments described with reference to the drawings are for understanding the present invention, and the scope of protection of the present invention is not limited thereto. The scope of protection of the present invention is determined by the description of the claims, and equivalents to those described in the claims are also included in the scope of the protection of the present invention.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of an equipment maintenance plan support system including a maintenance plan support device according to the present invention.

FIG. 2 is an operation flowchart of the embodiment in the configuration of the maintenance plan support system of FIG. 1;

FIG. 3 is an example of a table in a device database stored in a first memory device 14;

FIG. 4 is an example of a table in a device configuration database stored in a second memory device 15;

FIG. 5 is an example of a display screen of the output device 5 for explaining a database update.

FIG. 6 is an example of a display screen of the output device 5 for explaining preparation of a maintenance plan.

FIG. 7 is a display screen example of the output device 5 for explaining a facility update plan.

FIG. 8 is an example of a screen displayed on the output device 5 based on a maintenance plan formulation result.

FIG. 9 is a table showing an example in which life cycle costs of a plant C are estimated.

FIG. 10 is a table showing an example of trial calculation of life cycle costs in the case where some devices of the plant C are updated to succeeding devices.

FIG. 11 is a system configuration example illustrating a conventional maintenance plan support system.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 maintenance plan support device 2 plant and machinery 3 communication line 4 input device 5 output device 10 processing device 11 communication input I / F circuit 12 input I / F circuit 13 output I / F circuit 14 first memory device 15 second Memory device 16 Third memory device

Claims (5)

[Claims] An apparatus is connected through a communication line to a mechanical device composed of a plurality of devices, and stores a database having maintenance and inspection standards for the plurality of devices, a device configuration and maintenance records of the plurality of devices, and data on interest rates. The memory device, the operation results of the machine device for which the maintenance plan is to be obtained, obtained through the communication line, and the maintenance inspection standards and the maintenance records of the devices constituting the machine device in the database stored in the memory device. A maintenance plan support device, comprising: a processing device that calculates a next scheduled maintenance date and a device to be maintained based on the scheduled maintenance date. 2. The processing device according to claim 1, wherein the processing device extracts an updatable successor device from a device configuration of the mechanical device in a database stored in the memory device, and based on data on an interest rate in the database. By updating to the successor, and
A maintenance plan support apparatus characterized in that a life cycle cost in a case where the replacement equipment is not updated is obtained, and a facility update plan is obtained from a comparison result of the life cycle costs. 3. A memory device for storing a database, a processing device, and an output device, wherein the processing device displays a processing selection menu on the output device at startup, and is selected from the processing selection menu. A maintenance plan support device, which executes a process of updating the database, a process of formulating a maintenance plan for a mechanical device, or a process of formulating a plan for updating a component of the mechanical device. 4. The machine according to claim 3, wherein said machine is connected through a communication line, and the maintenance plan formulation processing of said machine is performed by using the operation result of the machine targeted for maintenance plan formulation obtained through said communication line. A maintenance plan support device for obtaining a next scheduled maintenance date and a maintenance target device based on a maintenance inspection standard and a maintenance record of a device constituting the mechanical device in a database stored in the memory device. 5. The renewal planning process of the equipment constituting the mechanical device according to claim 3, wherein the renewable succeeding device is extracted from the device configuration of the mechanical device in the database stored in the memory device. Obtaining life cycle costs from the data on interest rates in the database by updating to the successor device and by not updating to the successor device, and obtaining a facility renewal plan from the comparison result of the life cycle costs. Maintenance plan support equipment.