JPH03242529A - Maintenance aid evaluator - Google Patents

Abstract

PURPOSE:To optimize a maintenance plan by a method wherein a specified parameter necessary for the maintenance of a plant component equipment is compared with a maintenance reference data and a maintenance achievement data in the past to estimate and evaluate the deterioration of the equipment and based on the results, a replacement cycle and a maintenance cycle of the equipment are determined to display. CONSTITUTION:Data collected with a parameter collector 13 from equipment 2-1-2-m to be maintained are compared with a reference data 12, a data 6 in the past and the like by a diagnosing device 11 to estimate a timing of replacement or the like. The replacement timing data thus estimated are sent to a calculator 7 for management through a data transmission path 10. Based on the replacement timing data sent here, a replacement cycle and a maintenance cycle are calculated by an evaluation program and shown with a display device 8. A maintenance personnel can correct a maintenance plan data 9 in reference to the data and a maintenance achievement data 6.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to maintenance management technology for plants and systems, and particularly to a maintenance support evaluation device that supports maintenance management of equipment that constitutes a plant.

(Prior art) i 3 ill is a conceptual diagram of a conventional maintenance plan and how maintenance is reflected in the maintenance plan. In the diagram, (1) is a maintenance worker, (2) is a device to be maintained, and (3) and (4) respectively represent the work of maintaining equipment (2) and collecting data. (5) is a maintenance plan, which is created and maintenance work is performed.

(6) is the maintenance record, which shows the organization and analysis of past maintenance data.

Next, the relationship between conventional maintenance planning work and maintenance work will be explained with reference to FIG. First, based on the maintenance plan (5), maintenance personnel (1) perform maintenance (3) on the equipment (2) that makes up the plant.
) and go. In this case, the maintenance plan (5) is
), but for the sake of simplicity, it is assumed here that maintenance personnel (1) will create and maintain it.

A maintenance worker (1) performs maintenance (3) on a device (2) and collects (4) maintenance data (for example, inspection implementation failure data, maintenance details, replacement parts, equipment, etc. data). Furthermore, in order to maintain the maintenance plan (5), it is necessary to organize and analyze the collected data of the maintenance results (6). As a result of analyzing the data of maintenance record (6), it becomes necessary to modify the figures in maintenance plan (5), for example, the maintenance cycle and the replacement cycle of equipment (2) (or parts). In such cases, the maintenance plan (
By following up on 5), maintenance will be revised.

[Problem to be solved by the invention] Conventional maintenance plan determination is operated using the above-mentioned system, so in reality, organizing and analyzing data collected from many pieces of equipment in a plant is time consuming and time consuming. There is no guarantee that the data itself is appropriate data that can be reflected in maintenance plans. In addition, since it is sorted and analyzed through the process described above, there is a delay in reflecting it in the maintenance plan. Therefore, it is not reflected in the maintenance plan until after the equipment breaks down. etc. to prevent accidents from occurring V=
8 <There was an issue that it was difficult to connect with others.

This invention was made to solve the above-mentioned problems, and by providing a more appropriate maintenance cycle, replacement cycle, etc. for the equipment that makes up the plant, it is possible to dynamically modify the maintenance plan and improve the plant efficiency. The purpose of this study is to obtain a maintenance support evaluation device that can be used for preventive maintenance.

[Means to solve the problem]

The maintenance support evaluation device according to the present invention includes a collection means for collecting specific parameters necessary for maintenance of equipment constituting a plant, and a comparison of the specific parameters collected by the collection means with maintenance standard data and past maintenance performance data. The present invention is provided with an evaluation means for estimating and evaluating the state of deterioration of the equipment, and means for determining and displaying the replacement cycle and maintenance cycle of the equipment based on the results estimated and evaluated by the evaluation means.

(Operation) The maintenance support evaluation device according to the present invention collects specific parameters necessary for maintenance of equipment constituting a plant using a collecting means, and compares the collected specific parameters with maintenance standard data and past maintenance performance data. The deterioration state of the equipment is estimated and evaluated, and the replacement cycle and maintenance cycle of the equipment are determined and displayed based on the results.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, (7) is the management computer for this device,
A maintenance worker interacts with this device using a display device as a man-machine device (8), for example. (9) is a disk that stores, for example, maintenance plan data, maintenance evaluation data, maintenance evaluation program, etc., and (6) is a , indicates a disk that stores maintenance performance data.

(10> indicates the data transmission path between the management computer (7) and the diagnostic device (11). (12) indicates the ff'-disconnection device (
11) It is a tisf that stores reference data necessary for diagnosis. (13) is the equipment to be maintained (21, 2-2,
−·−2−m ) and is connected to the diagnostic device (11) (&).

There may be multiple collection units for these maintenance data depending on the diagnosis method and the configuration of the target equipment (14-1, 1).
4-2...l4-n).

The flow of data will now be explained with reference to FIG.

The data collected by the parameter collection device (13) from the equipment to be maintained (2-1, 2-2...2-m) is
A diagnostic device (11) compares it with reference data (12), past data (6), etc., and estimates the replacement time.

These estimated replacement timing data are transmitted through the data transmission path (1
0) to the management computer (7). Based on the replacement time data sent here, the evaluation program calculates the replacement cycle, maintenance cycle, etc., and displays them on the display device (man-machine device) (8). The maintenance staff can modify the maintenance plan data (9) by referring to the data and maintenance performance data (6).

Next, the functions will be explained with reference to FIG.

Specific parameters from the equipment to be maintained (2) are collected (4) by the parameter collection device (13) and compared with standard data (12) such as deterioration, past data (6), etc. to estimate replacement time, etc. . Based on the calculated replacement period, the evaluation program calculates the replacement period, maintenance period, etc. while also taking into account life cycle costs and the like (71). These are displayed by a man-machine (display) device (8) and serve as a reference when the maintenance person (1) corrects the maintenance plan data (7) together with the maintenance performance data (6).

In addition, maintenance performance data (6) is performance data such as maintenance details (maintenance date, inspection details, inspection results, replacement parts failure status, etc.), and is updated in the data header (6) by the man-machine device (8). .

An example of a method for evaluating the replacement cycle will be explained with reference to FIGS. 4(A) and 4(B).

Figure 4 (A>) shows an example of estimating the replacement time based on the change trend of a specific parameter.The time taken to reach the parameter value Po, which determines the replacement time based on the recent trend of take, is 1i.
The case where the angle is changed to 143° is shown.

4th+a(B) shows an example of determining the replacement cycle X based on the replacement time a and taking into account the life cycle cost.

In the diagram, maintenance cycle: d, maintenance cost at that time: b (replacement cost is also assumed to be b), replacement cycle: : Y, time when it is thought to occur: 2 When the constant that can be considered as sound maintenance is m, In other words, when X〈replacement period (a or a'), X is the replacement period. thinking.

The above devices include a management computer (7) and a diagnostic device (11).
), a data collection device (13) are shown as an example of a separate system configuration, but these may be integrated into one device, and the maintenance data collection system may also be an 1 system.

Further, although the example has been shown in which maintenance personnel manually modify the maintenance plan take (9) or update the maintenance record data (6), these can also be done automatically or online.

It is also conceivable that the input to the parameter collection device (13) is automatic or, conversely, input manually.

Furthermore, the concept of replacement timing and replacement cycle is merely an example. (There are diagnostic methods suitable for each target device, and there are various ways of thinking about life cycle costs.)

〔Effect of the invention〕

As described above, according to the present invention, it is possible to quickly estimate the replacement area and maintenance cycle in accordance with changes in the deterioration status of the equipment that makes up the plant, and it is expected to be effective in preventive maintenance. There is an effect of being able to quickly optimize the maintenance plan.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram of a maintenance support evaluation device according to an embodiment of the present invention, FIG. 2 is an explanatory diagram for explaining the operation of FIG. 1, and FIG. 3 is an explanation of old notes on conventional maintenance. FIGS. 4(A) and 4(B) are explanatory diagrams illustrating the concept for determining the replacement cycle and maintenance cycle of the apparatus shown in FIG. 1. In the figure, (6) is maintenance performance data, (7) is a management computer, (8) is a man-machine device, (9) is maintenance plan data, (11) is a diagnostic device, (12) is standard data, (
13) is a parameter collection device. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims] A collection means for collecting specific parameters necessary for maintenance of equipment that constitutes a plant, and comparing the specific parameters collected by this collection means with maintenance standard data and past maintenance performance data to estimate and evaluate the deterioration state of the equipment. evaluation means,
A maintenance support evaluation device comprising means for determining and displaying the replacement cycle and maintenance cycle of the equipment based on the estimated evaluation result by the evaluation means.