JP3341205B2 - Equipment diagnosis result analysis device and computer readable recording medium recording equipment diagnosis result analysis program - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an equipment diagnosis result analyzing apparatus for analyzing a diagnosis result obtained by diagnosing various equipment such as a steam trap provided in a piping system of a steam plant. The present invention relates to an apparatus for realizing the above analysis by a computer.

[0002]

2. Description of the Related Art The above-mentioned steam trap is a self-powered valve for automatically discharging condensed water or drain water generated in a piping system of a steam plant without missing steam. Usually, a plurality of such traps are installed in one plant, but if an abnormality such as a steam leak or a valve does not operate occurs in the trap, the operating efficiency of the plant is reduced only. However, in some cases, it is quite possible that an abnormality occurs in the entire plant. Therefore, in order to prevent such a problem beforehand, while periodically diagnosing whether or not each trap is operating normally, by collecting and analyzing the diagnosis result,
It is necessary to strive to maintain and manage each trap as seen from the whole plant.

[0003] Therefore, as a trap diagnostic device for diagnosing the above traps and an analyzing device for summing up and analyzing the diagnostic results of each trap by the diagnostic device, there is a device as shown in FIG. 4, for example. In the figure, 1 is a portable diagnostic device used for diagnosing a trap (not shown), 2 is an analyzing device, and 3 is a dedicated cable for connecting these devices 1 and 3 to each other. . The cable 3 is used to transfer the diagnosis result of each trap by the diagnostic device 1 to the analysis device 2 side, and when the diagnostic device 1 diagnoses each trap,
The diagnostic device 1 is used after being detached from the cable 3 (analyzing device 2).

[0004] Of the components shown in FIG.
Is that when a vapor leaks into the trap, ultrasonic vibration is generated in the trap (housing) itself, and the magnitude of the vibration, that is, the vibration level, and the surface of the trap itself at that time The temperature (specifically, the saturated steam temperature in the trap is estimated from the surface temperature, and the steam pressure in the trap obtained by converting the saturated steam temperature into the saturated steam pressure) is correlated with the amount of steam leakage. Using the vibration level and the surface temperature, it is automatically determined whether or not steam is leaking to the trap, and if steam is leaking, the degree of the leak is automatically determined. Things.

In order to realize this, the diagnostic device 1
A probe 11 for detecting the vibration level and the surface temperature, and an apparatus body 12 for processing a detection signal output from the probe 11 to automatically determine the presence or absence of the steam leak and the degree of the leak. And a cable 11a for connecting the two to each other.

[0006] Of these, the probe 11 has
It has a built-in vibration detector (not shown) for detecting the vibration (level) and a temperature detector (not shown) for detecting the surface temperature. Each of these detectors detects the vibration level and the surface temperature by pressing the tip of the probe 11 against the surface of the housing of the trap to be diagnosed, and outputs a detection signal corresponding to these. Then, this detection signal is supplied to the apparatus main body 12 via the cable 11a.

The apparatus main body 12 converts the detection signal into an amplifier 1
3 is amplified by the A / D converter 14, and the so-called trap diagnostic data obtained by digitization by the A / D converter 14 is input to the CP.
U15. The CPU 15 converts the information of the vibration level and the surface temperature contained in the input diagnostic data into correlation data based on the correlation between the amount of steam leakage stored in advance in the storage unit 16 having, for example, a ROM or a RAM. Process according to. Thereby, it is determined whether or not a vapor leak has occurred in the trap to be diagnosed, and if a vapor leak has occurred, the degree of the leakage is determined. The information is displayed on the display unit 17 and temporarily stored (saved) in the storage unit 16.

By the way, the results of the judgment by the CPU 15 include, for example, the following. That is, when the steam leaks from the trap is severe and the steam is almost completely blown out, the CPU 15 determines that “Blowin
g) ”. And although the degree of steam leakage is small compared to the state of this "Fukipanashi",
If steam is still leaking from the trap, depending on the level of the leak,
k / Large), "Leak / Midium", and "Leak / Small". In addition, when the trap is hardly operated, a judgment result of “Blocked” is given. Further, if the temperature of the trap itself is abnormally low due to excessive drain accumulation in the trap due to the drain not being discharged properly from the trap, etc.
Temperature) ”. If the temperature of the temperature-regulated trap is out of the preset temperature, "Fail Adjus
t) ”. If none of the above determination results apply, and particularly if no abnormality is found in the trap, a determination result of “Good” is given.

[0009] If a worker who has a certain level of experience in the trap diagnostic work, when the trap is leaking steam, the cause of the leak is, for example, leaking from the trap body or the lid. Or leakage from the packing (gasket) in the trap can be determined by experience. Therefore, in the diagnostic apparatus 1, in addition to the above-described determination results, "Hontai More" indicates that steam is leaking from the main body or the lid of the trap.
(Leak Body) '' and the result of `` Packing More (L
The determination result "eak Gasket)" can be manually input from the operation unit 18 having a plurality of push buttons (keys), for example. The operation unit 18 outputs a message “Not Checked” for traps for which a diagnosis has not yet been made, and a message “Queue” for traps that are currently inactive.
(Not in Service) "can be manually input instead of each of the above determination results.

When the CPU 15 stores the judgment results including the above messages in the storage unit 16, the CPU 15 stores the judgment results (Results) together with the management numbers (traps) of the traps as shown in FIG. Trap), model name (Model), and date when each trap was diagnosed (Inspected Date) are saved.

After the diagnosis of each trap by the diagnostic device 1 is completed as described above, the diagnostic device 1 is connected to the analyzer 2 via the cable 3 as shown in FIG. Then, the diagnostic result of each trap by the diagnostic device 1, that is, the data stored in the storage unit 16 is transmitted to the analysis device 2 via an input / output interface (hereinafter, referred to as I / O) circuit 19 and the cable 3. Forward.

On the other hand, as shown in FIG.
A CPU (Central Processing Unit) 21; an operation unit 22, a display unit 23, a storage unit 24,
/ O circuit 25. In terms of hardware,
For example, it is constituted by a personal computer.
In the storage unit 24, detailed data of each trap provided in the plant, for example, various data such as a management number and a model name of each trap, a manufacturing company, an application, a steam pressure, and an installation date are stored in advance. Have been. The storage unit 24
An analysis program for counting and analyzing data transmitted from the diagnostic device 1 is also stored therein.

That is, according to the analyzing device 2, the data sent from the diagnostic device 1 is input to the CPU 21 via the I / O circuit 25. The CPU 21 tabulates and analyzes the input data according to an analysis program stored in the storage unit 24. In addition, according to this analysis program, the CPU 21 performs the counting and the analysis while referring to the detailed data of each of the traps stored in the storage unit 24, thereby obtaining, for example, a trap defect rate and a defect trap. The loss etc. due to the steam leak of is derived. Then, the CPU 21 displays these totals and analysis results on the display unit 23,
4 and output to peripheral devices such as a printer (not shown).

Accordingly, the operation status of each trap as viewed from the entire plant can be grasped from the total and analysis results by the analysis device 2, so that, for example, a trap which will require repair or replacement is predicted. However, it is possible to take appropriate measures in maintaining and managing each trap.

In the conventional analyzer 2 (analysis program), the diagnosis result (judgment result) of each trap included in the data sent from the diagnostic device 1 is described.
Of the traps, only the traps determined to be "Sailfish" are regarded as normal traps, excluding the above-mentioned "Mittenken" and "Kyuushi". And other traps, namely, "Fukipanashi", "Moredai", "Morechu", "Moreshaw", "Hunpomari", "Ijoteion", "Ondofuryo", "Hontaimore" and "Packingmore" were determined. All the traps are programmed to perform the above aggregation and analysis, assuming that all traps are defective (abnormal) traps. Therefore, according to the conventional analyzer 2, each of the traps diagnosed by the diagnostic device 1 is automatically judged based on the following Table 1 (either normal or abnormal (defective)). are categorized.

[0016]

[Table 1]

That is, according to the above-described quality judgment, some of the traps determined to be defective include traps having a large degree of steam leakage, such as traps determined to be "Fukipanashi" or "Moredai". For example, traps that are determined to be defective due to slight vapor leakage, such as traps determined to be “Molechu” or “Moleshow”, are also included.

However, it is up to the operator of the plant to determine in which situation the trap is to be regarded as defective or which trap is to be repaired or replaced.
Each may be different. For example, even if a steam leak occurs in the trap, the steam leak reduces the operating efficiency of the entire plant, but this steam leak
There is little impact on the products produced by the plant. Therefore, depending on the plant operator, traps having a relatively small leak such as “Molechu” and “Moleshow” are not judged to be defective or are not targeted for repair or replacement. There are cases. Therefore, it is basically desirable to determine which trap is to be regarded as defective or to be repaired or replaced based on the operation policy of the plant operator.

[0019]

That is, the problem to be solved by the present invention is that, according to the above-mentioned prior art, the quality of each trap is automatically determined in accordance with Table 1 so that the quality of the plant can be reduced. The point is that some operators may not be able to implement trap management according to their respective management policies.

Therefore, the present invention provides an equipment diagnosis result analyzing apparatus which can realize trap maintenance management based on each operation policy by independently defining a trap quality judgment criterion on a plant operator side. The purpose is to provide. It is also an object of the present invention to provide a recording medium in which a program for analyzing equipment diagnosis results for realizing this apparatus by a computer is recorded.

[0021]

Means for Solving the Problems In order to achieve the above-mentioned object, the invention according to claim 1 of the present invention is a diagnostic result obtained by diagnosing a plurality of devices constituting a facility. Classifying means for arbitrarily classifying a plurality of types of predetermined diagnosis results into any of a plurality of judgment types including at least first and second judgment types, respectively; Analysis means for totalizing and analyzing the classified results.

Here, the first and second judgment types mentioned above mean, for example, normal and abnormal (defective).

That is, according to the first aspect of the present invention,
It is determined by the classification means whether the respective diagnosis results are classified as normal or abnormal, arbitrarily, for example, based on an operation policy of a person who operates the equipment. And
The analysis means converts the result of the classification by the classification means into
Aggregate and analyze.

According to a second aspect of the present invention, in the equipment diagnosis result analyzing apparatus according to the first aspect of the present invention, each of the diagnostic results is diagnosed as a plurality of traps provided in piping equipment as each of the devices. This is the result obtained.

The above trap means, for example, a steam trap provided in a piping system of a steam plant, or an air trap or a gas trap provided in a piping system of compressed air or gas.

According to a third aspect of the present invention, there is provided a recording medium storing a facility diagnosis result analysis program for analyzing, by a computer, a diagnosis result obtained by diagnosing a plurality of devices constituting the facility. A plurality of types of each diagnosis result are determined in advance, a classification procedure for arbitrarily classifying each of these diagnosis results into one of a plurality of determination types including at least a first and a second determination type, and a classification procedure. An analysis procedure for totalizing and analyzing the results classified into the respective judgment types and a facility diagnosis result analysis program for causing a computer to execute the analysis procedure are recorded.

Examples of the recording medium include a flexible disk (FD), a hard disk, a magnetic tape, a CD-ROM, a magneto-optical (MO) disk, a DVD (digital versatile disk), and a paper tape. There is. Further, the first and second determination types mentioned here mean, for example, normal and abnormal (defective).

That is, according to the third aspect of the present invention,
According to the classification procedure, the computer determines whether each of the above diagnostic results is classified into normal or abnormal,
Optionally, the determination is made based on, for example, an operation policy of a person who operates the equipment. Then, the computer tabulates and analyzes the result of the classification based on the classification procedure based on the analysis procedure. That is, by causing a computer to execute the equipment diagnosis result analysis program recorded on the recording medium according to the third aspect of the present invention, the same effect as that of the equipment diagnosis result analyzing apparatus according to the first aspect of the invention is exerted. .

According to a fourth aspect of the present invention, there is provided a computer-readable recording medium storing the facility diagnosis result analysis program according to the third aspect of the present invention, wherein each of the diagnostic results is stored in a piping facility as each of the devices. The number of traps obtained as a result of diagnosing the plurality of traps provided is diagnosed.

[0030]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example of an embodiment in which the equipment diagnosis result analyzing apparatus according to the present invention is applied to, for example, an apparatus for analyzing a result obtained by diagnosing a steam trap described above. This will be described with reference to FIG. Note that the analyzer of the present embodiment aggregates and analyzes the diagnostic results of the diagnostic device 1 shown in FIG.
In terms of hardware, it is configured by, for example, a personal computer, similar to the analysis device 2 in FIG. 4 described above, and differs only in the analysis program stored in the storage unit 24. Therefore, as for the hardware configuration of the present embodiment, FIG.
A detailed description of the same parts as those in the above-described conventional technique is omitted. However, in the present embodiment, the operation unit 22 is configured by, for example, a keyboard and a mouse, and the display unit 23 is configured by, for example, a CRT (cathode ray tube) or an LCD (liquid crystal display device).

That is, in the analyzer 2 of the present embodiment, the CPU 21 operates as follows according to the above-mentioned analysis program.

First, the CPU 21 displays, for example, a screen as shown in FIG. 1 on the display unit 23 before executing the counting and analysis. This screen is a screen for selecting which of the determination results by the above-described diagnostic device is regarded as defective (abnormal). An arrow 40 displayed on the upper left side of the screen is a cursor. The cursor 40 can be freely moved on the screen by operating a mouse constituting the operation unit 22.

As shown in the figure, on this screen, the above-mentioned "Blowing" and "More / Leak / La
rge), "Morech (Leak / Midium)", "Moreshaw"
(Leak / Small) '', `` Fun ヅ mari (Blocked) '', `` Ijoteion (Low Temperature) '',
check boxes 41, 41 for setting whether or not each trap determined as “ail Adjust)”, “Hontai mole” (Leak Body) ”and“ Packing mole ”(Leak Gasket) is regarded as an abnormal trap (Failed Traps Include). ...
Are displayed corresponding to the respective determination results. In addition to these determination results, a determination item “CustomCod” that can be arbitrarily set by the plant operator is also provided.

Here, for example, "Blowing"
In the case where the trap determined as "" is set to be regarded as defective, as shown in the figure, the mouse operation corresponds to "Blowing" (displayed on the left side of the display "Blowing"). ) Move the cursor 40 on the check box 41 and press the left button of the mouse once,
That is, click. Thereby, this check box 41
Then, a check mark indicating that the trap determined as "Blowing" has been set to be regarded as defective is input.

Similarly, if there is another judgment result to be regarded as defective, the corresponding check box 41
By moving the cursor 40 upward and clicking the left mouse button, a check mark is entered in the check box 41. In addition, FIG.
lowing), "Moredai (Leak / Large)", "Hunpomari"
(Blocked) '', `` Ijoteion (Low Temperature)
"," Fail Adjust "," Hontai Mole (Leak Body) "and" Packing Mole (Leak Gasket) "
An example is shown in which a trap determined as "" is set to be regarded as defective.

Further, on this screen, it is possible to set whether or not the above-mentioned trap "Mittenken (Not Checked Traps)" and the trap "Kuushi (Not in Service Traps)" are each regarded as the above-mentioned defective trap. Check columns 42, 42 are also provided. In other words, these traps called "Mitenken (Not Checked Traps)"
When it is desired to treat the trap “Custin (Not in Service Traps)” as a defective trap, a check mark is placed in each of the check boxes 42 and 42 in the same manner as the above check boxes 41, 41,. input.
The check boxes 41, 41,...
In order to cancel the check mark once entered in 42, the cursor 40 may be moved there again and the left mouse button may be clicked.

As described above, the judgment result to be regarded as defective is selected (the desired check boxes 41, 41,... And 4).
After inputting a check mark to the buttons 2 and 42, the user presses an "OK" button 43 displayed on the upper right side of the screen.
And click the left mouse button)
Thereafter, the CPU 21 treats only the trap of the selected determination result as a defective trap. That is, the above selection has not been made (check boxes 41, 41, ...).
And 42, 42 have no check mark)
All traps resulting from the determination are treated as normal traps.

Therefore, for example, if the diagnostic result of each trap by the diagnostic apparatus 1 shown in FIG. 4 described above is judged based on the setting conditions in FIG. 1 and the list is displayed as a list (list), for example, FIG. As shown. That is, the management number “00” determined to be “Fail Adjust”
The trap of No. 005 and the trap of control number “0007” determined to be “Moledai (Leak / Large)” are regarded as “Failed”,
(Leak / Midium) ", the management number" 00003 "
For the trap of the number and the trap of the management number “000009” determined as “Moreak (Leak / Small)”,
Considered as good. In the figure, “Appl
"icatin" indicates the purpose of each trap, and "$
“Loss” refers to the amount of loss due to a trap that has caused a steam leak.

In the screen display of FIG. 1, when the "Default (standard setting)" button 44 displayed on the right side of the screen is pressed, the CPU 21 automatically sets the default setting, for example, "Blowing". ”,“ Moredai
(Leak / Large) "," Molechu (Leak / Midium) "," Moleshaw (Leak / Small) "," Humpamari (Blocked) ",
`` Ijoteion (Low Temperature) '', `` Ondo Fyo (Fail Adjust) '', `` Hontai Mole (Leak Body)
, And "Leak Gasket", checkmarks are entered in the check boxes 41, 41,.... As a result, all of these determination results are regarded as defective, that is, the same good / bad determination as in the above-described related art is performed.

When the "Cancel" button 45 displayed below the "Default" button 44 is depressed, the CPU 21 proceeds to this screen without executing the selection processing of each judgment result performed on this screen. This screen display ends. Then, when a “Help” button 46 displayed below the “Cancel” button 45 is pressed, a help screen explaining the display contents of the screen of FIG. 1 is displayed.

As described above, the operation of the CPU 21 controlled by the analysis program in the present embodiment is represented by a state transition diagram, for example, as shown in FIG. That is, when the analysis program is executed, the CPU 21 first enters the idle state 100. In the idle state 100, the CPU 21 displays, on the display unit 23, an initial screen of the analysis program, for example, a menu selection screen for selecting what kind of aggregation and analysis is to be performed.

In the idle state 100, when a command to display the display screen shown in FIG.
To the screen of FIG.
To be displayed. Then, in the selection processing 200, as described above, a desired determination result by the mouse operation, that is, check columns 41, 41,.
・ Enter check marks in and 42, 42.

After each selection on the display screen of FIG. 1 is completed, when an "OK" button 43 is pressed, the CP
U21 makes a transition to the update process 210, stores the settings made on the display screen of FIG.
Return to 0.

In the idle state 100, when a command to start some kind of counting and analysis is given by the operation unit 22, the CPU 21 executes the analysis processing 300.
Transitions to. Then, the CPU 21 executes the analysis processing 30
At 0, the quality of each trap is determined based on the setting contents (stored in the update process 210) made on the display screen of FIG. 1, and then, for example, the above-described list shown in FIG. Alternatively, the trap failure rate or the like is derived based on the list, and the derived result is displayed on the display unit 23 in a table or a graph. When these various tabulations and analyzes have been completed, the CPU 21 exits the analysis processing 300 and returns to the idle state 100.

Note that the CPU 21 executes the selection processing 200
When the "Default" button 44 is depressed, the CPU 21 transitions to the standard setting process 220, executes the above-described standard setting, and returns to the selection process 200.

When the CPU 21 presses the "Cancel" button 45 while in the selection process 200, the CP 21
U21 returns to the idle state 100 directly from the selection processing 200.

When the CPU 21 presses the "Help" button 46 in the selection process 200, the CP 21
U21 transits to the help process 230 to display the help screen described above. If the CPU 21 gives an instruction to end the help screen from the operation unit 22 while in the help process 230, the CPU 21 returns to the selection process 200.

As described above, according to the present embodiment, the operator of the plant can freely set whether the diagnosis result obtained by diagnosing each trap is regarded as normal or abnormal. Therefore, unlike the above-described prior art in which the quality determination of each trap is determined without permission, the maintenance management of each trap according to the management policy of the operator can be realized.

In this embodiment, the case of analyzing the result of diagnosing a steam trap has been described, but the result of diagnosing not only a steam trap but also other traps such as an air trap and a gas trap is analyzed. In this case, the present invention can be applied. Of course, the present invention can be applied not only to these traps but also to a case of diagnosing another device such as a valve or a rotating machine.

If an operation and an effect similar to those of the present embodiment can be obtained, an analysis program is designed so that the operation of the CPU 21 is controlled by a control procedure other than the state transition diagram shown in FIG. Is also good.

Then, the analyzing apparatus 2 in the present embodiment
May be provided on the diagnostic device 1 side.

[0052]

As described above, according to the equipment diagnosis result analyzing apparatus according to the first aspect of the present invention, each diagnosis result obtained by diagnosing each device is determined as either normal or abnormal. Can be arbitrarily determined based on, for example, an operation policy of a person who operates the equipment. And
This arbitrarily classified result is tabulated and analyzed. Therefore, unlike the above-described prior art in which the quality determination of each trap is determined without permission, the operator of the equipment can freely determine whether each device is considered to be normal or abnormal, There is an effect that the maintenance management of each device can be realized in accordance with the management policy of the operator.

According to the equipment diagnosis result analyzing apparatus of the second aspect of the present invention, the same effects as those of the first aspect can be obtained even when analyzing the result of diagnosing a trap as a diagnosis target. .

According to a computer-readable recording medium on which the program for analyzing equipment diagnosis results according to the third aspect of the present invention is recorded, the computer can execute the program for analyzing equipment diagnosis results recorded on this recording medium, whereby The same operation as that of the equipment diagnosis result analyzing apparatus according to the first aspect of the invention is achieved. Therefore, the same effect as that of the first aspect can be obtained.

According to the computer-readable recording medium on which the equipment diagnosis result analysis program of the present invention is recorded, even when the result of diagnosing a trap as an object to be analyzed is analyzed, it is recorded on this recording medium. By causing the computer to execute the equipment diagnosis result analysis program, the same effect as the invention according to the third aspect can be obtained.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a screen display example according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating an example of a counting and analysis result according to the embodiment.

FIG. 3 is a state transition diagram conceptually showing the operation of the CPU in the embodiment.

FIG. 4 is a block diagram showing a schematic configuration of the embodiment and a conventional technique.

FIG. 5 is a conceptual diagram showing the contents of data transferred from the diagnostic device to the analyzing device in the embodiment and the prior art.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Diagnostic device 2 Diagnosis result analyzer (computer) 21 CPU (classification means, analysis means) 22 Operation part 23 Display part 24 Storage part 200 Selection processing 300 Analysis processing

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) G05B 23/02 F16T 1/48 G09G 5/00

Claims (4)

(57) [Claims] 1. A diagnostic result obtained by diagnosing a plurality of devices constituting a facility, wherein a plurality of predetermined diagnostic results are determined by a plurality of determinations each including at least a first and a second determination type. An equipment diagnosis result analysis apparatus, comprising: a classifying means for arbitrarily classifying into any of the types; and an analyzing means for totalizing and analyzing the results classified by the classifying means into the respective judgment types. 2. The method according to claim 2, wherein each of the diagnosis results is performed as each of the devices.
The equipment diagnosis result analysis apparatus according to claim 1, wherein the result is obtained by diagnosing a plurality of traps provided in the piping equipment. 3. A plurality of diagnostic results obtained by diagnosing a plurality of devices constituting the equipment, wherein a plurality of predetermined diagnostic results are respectively determined by a plurality of determinations including at least first and second determination types. A computer that records a facility diagnosis result analysis program that causes a computer to execute a classification procedure for arbitrarily classifying into any of the types, and an analysis procedure for totalizing and analyzing the results classified into each of the above-described determination types by the classification procedure. A readable recording medium. 4. The diagnostic apparatus according to claim 1, wherein each of the diagnostic results is
4. A computer-readable recording medium which records a facility diagnosis result analysis program according to claim 3, wherein the result is obtained by diagnosing a plurality of traps provided in the piping facility.