JP2009109350A - Monitoring and diagnosing system for rotary machine apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To detect only abnormal conditions due to degradation or failure of equipment by eliminating an effect of variation of parameters in an operating state in a rotary machine apparatus wherein parameters are varied in an operating state. <P>SOLUTION: A monitoring and diagnosing system includes a level for issuing an alarm of abnormal vibration, per a plurality of operating patterns classified based on the parameters in an operating state including the number of revolutions of the rotary machine apparatus and loading condition on the rotary machine apparatus, and per a placement location of each of vibration detecting sensors. Monitoring operating conditions of the rotary machine apparatus includes comparing a vibration level detected by each of the vibration detecting sensors and the predetermined level for issuing an alarm to perform an alarm evaluation, per a placement location of each of the vibration detecting sensor and per each of the operating patterns, and displaying an alarm by an alarm displaying means. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a monitoring / diagnosis system for a rotating machine device, and is intended to easily and reliably monitor and diagnose whether or not an abnormality has occurred at each position of the rotating machine device.

  In general, in an equipment diagnosis system that measures and diagnoses the state of a rotating machine device, the equipment state is quantified and the state is monitored by measuring vibration signals and sound signals in the operating state. In the monitoring of a rotating machine device in which the operating state parameters such as the rotational speed change and the process state do not change, the measured value is relatively stable and the equipment state can be quantified and diagnosed easily.

  However, in equipment that involves changes in operating state parameters such as rotational speed changes and process conditions, the measured values fluctuate in accordance with the state changes, so if the measured values show significant changes such as rising or falling. It is impossible to judge whether it is abnormal due to deterioration or failure of the equipment or due to a change in the operating state.

In view of this, there has been provided a diagnostic device for diagnosing an abnormality while eliminating influences such as changes in operating state parameters.
For example, in the shaft vibration monitoring / diagnosis device for a rotating machine disclosed in Japanese Patent Application Laid-Open No. 2004-169624 (Patent Document 1), an abnormality determination value for detecting shaft vibration abnormality in a plant such as a generator according to a load state and the number of rotations of the rotating shaft. Is stored in the storage area, and the abnormal value of the rotating shaft is monitored by comparing the detected value of the sensor attached to the bearing portion with the abnormality determining value by the shaft vibration abnormality determining means. It is diagnosed whether it is due to a change in conditions or abnormal vibration of the rotating shaft.

That is, in Patent Document 1, specifically, an operation state is specified from detection values input from various sensors installed in the plant, and an abnormality determination value in the operation state is compared with the rotation shaft vibration.
However, whether the vibration at the installation location of the sensor installed in the plant indicating the operation condition that is the data of the abnormality determination value indicating whether the rotation shaft vibration is abnormal is a detection value according to the operation state or the load condition. It is necessary to first determine whether the detected value is caused by abnormal vibration occurring in the installation area, and it is also important to monitor whether abnormal vibration is occurring in addition to the rotating shaft. It is.

Usually, a rotating machine device has an inherently complex vibration response that is determined by its mechanical structure and installation conditions, etc., and it is difficult to express the vibration response characteristics corresponding to changes in the operating state with one kind of approximate expression. . Therefore, it is necessary to adjust the optimum approximate expression and its coefficient for each sensor.
On the other hand, in a large plant equipped with a rotating machine device, the number of sensors that measure the operating state exceeds several hundred points. Therefore, adjusting the optimum approximate expression for each sensor and its coefficient is actually very large. Labor is required, and it is often operated using one kind of approximate expression and coefficient. However, depending on the sensor, there is a problem that if the correction is performed according to the driving condition using the approximate expression and the coefficient, a malfunction is induced by the correction.

Further, in the apparatus of Patent Document 1, since the measurement value for each area is displayed on one screen, depending on the change of the parameter, the measurement value varies and is displayed on the screen. There is a problem that it is difficult to detect the change of the accompanying data.
In addition, since the measured values for all parameters of the motion state are displayed on the same screen, it is difficult to manage the trends at the parameter boundaries in each region, and it is the influence of changes in the operating state or the influence of machine failure. Therefore, there is a problem that the influence of the change in the operating state parameter cannot be excluded with certainty.

JP 2004-169624 A

  The present invention has been made in view of the above problems, and in a rotating machine device in which operating state parameters change, the influence of changes in operating state parameters is eliminated, and abnormalities in each part other than the rotating shaft and the rotating shaft are eliminated. It is an object of the present invention to monitor the occurrence of vibration, identify a location where abnormal vibration is occurring, and clearly display the location of abnormal vibration.

In order to solve the above-mentioned problem, the first invention is a vibration detection sensor installed at a plurality of locations where vibration is generated by the rotational drive of the rotary machine device,
A monitoring and diagnosis device connected to the plurality of vibration detection sensors;
Connected to the monitoring and diagnosing device, comprising alarm display means for outputting an alarm when an abnormality diagnosis is made in the monitoring and diagnosing device,
The monitoring / diagnosis device is abnormal for each of a plurality of operation patterns classified based on an operation state parameter including a rotation speed of the rotary machine device and a load condition to the rotary machine device, and for each installation position of each vibration detection sensor. Set the vibration alarm generation level,
The alarm generation level is acquired for each installation position of each vibration detection sensor from the sensor signals detected by the plurality of vibration detection sensors during an initial adjustment period, and the acquired amplitude is acquired for each of the plurality of operation patterns. A constant normal amplitude level is measured by averaging, and the alarm generation level of a constant level is set in advance for each operation pattern and for each installation position of each vibration detection sensor from the measured value,
The operational status of the rotating machine device is determined by comparing the vibration level detected by each vibration detection sensor with the set alarm generation level for each installation position of each vibration detection sensor and for each operation pattern. When the alarm generation level is reached, an alarm is displayed by the alarm display means.

As described above, in the monitoring / diagnosis system for a rotating machine device according to the present invention, in addition to the sensor installed on the bearing portion of the rotating shaft of the rotating machine device, the rotating machine device has a number of other parts that generate vibration when the rotating machine is driven to rotate. Whether or not abnormal vibration has occurred for each installed sensor is monitored for each operation state pattern, and the deterioration location and failure occurrence location of the entire equipment of the rotary machine device are specified.
In addition, each operation state pattern is displayed on the screen, and the sensor position that has reached the alarm generation level is displayed.
In addition, since the state is monitored for each operation pattern based on the operation state parameter, relative comparison such as trend management within the same operation state pattern is possible.
Further, since each sensor is only managed by being divided into a plurality of operation patterns based on the operation state parameter, the state can be monitored most easily and surely.
The alarm level is preferably set in a plurality of stages such as a caution level and a danger level, and by efficiently comparing the measured value of each sensor with the level, the state of the location where the sensor is installed can be efficiently monitored. Can do.

It is preferable that alarm determination is performed by assigning a management number to each installation position of the plurality of vibration detection sensors and for each operation pattern, and the alarm display means displays an alarm for each management number.
In this way, when a management number is assigned to each sensor and the measurement value is managed for each management number, monitoring according to the operation pattern of each sensor can be easily performed, and a time corresponding to a certain vibration value can be obtained. It is displayed as a transition, making it easy to see changes in data associated with failures.

The operation pattern of the rotary machine is preferably divided into a low-speed rotation pattern, a medium-speed rotation pattern, and a high-speed rotation pattern according to the number of rotations.
Note that the operation pattern is not limited to the above-described pattern division, and may be divided into two patterns, a medium-speed rotation pattern and a high-speed rotation pattern, or may be divided into four or more patterns.

The operating state parameter includes power applied to a driving source for rotating the rotary machine, fluid pressure, flow rate, fluid viscosity, oil temperature, on-roof, unloading for a pump, air flow for a fan, damper opening. In the case of a rolling mill, it preferably includes at least one of the presence or absence of a rolled material, and in the case of a conveyance facility, the presence or absence of a conveyance material, and further includes the temperature condition and the humidity condition when the rotary machine device is rotated.
The operating state parameter may be one of the above, but by using a plurality of operating state parameters, it is possible to more closely relate the operating state and the pattern classification, and to perform fault diagnosis more accurately. it can.

  The plurality of vibration detection sensors are installed at a number of locations where vibration is generated when the rotary machine is driven to rotate, such as a bearing portion of the rotary machine, a bearing housing outer surface of the rotary machine, and a case of the rotary machine. Is done. In the case where there are a large number of rotating shafts, the vibration detection sensor is installed on the bearing portion of each rotating shaft.

It is preferable that the alarm level set in the initial adjustment period can be reset after operating the rotary machine device for a predetermined period.
The monitoring and diagnosis system of the present invention first provides an initial adjustment period such as one week when the system is installed in the rotary machine device, and for each sensor installed in the rotary machine device during the initial adjustment period, As described above, based on vibration detected by each vibration detection sensor, a certain level of the alarm generation level is preset for each operation pattern, and monitoring is performed based on the set level.
However, it is preferable to review the alarm level because the characteristics of the rotary machine that cannot be grasped only during the initial adjustment period and the rotary machine change due to use over time occur. Therefore, in this system, the alarm level set in the initial adjustment period after a predetermined period of operation can be reviewed and reset.

As a second invention, vibration sound detection sensors installed at a plurality of locations where vibration is generated by the rotational drive of the rotating machine device,
A monitoring diagnosis device connected to the plurality of vibration sound detection sensors;
Connected to the monitoring and diagnosing device, comprising alarm display means for outputting an alarm when an abnormality diagnosis is made in the monitoring and diagnosing device,
The monitoring and diagnosing device is provided for each of a plurality of operation patterns divided based on an operation state parameter including a rotation speed of a rotating machine device and a load condition on the rotating machine device and for each installation position of each vibration sound detection sensor. Set the alarm generation level for abnormal vibration noise,
The alarm generation level is obtained by acquiring an amplitude sound for each installation position of each vibration detection sensor from the sensor signals detected by the plurality of vibration sound detection sensors during an initial adjustment period. A certain normal vibration sound level is measured by averaging for each pattern, and the alarm generation level of a certain level is set in advance for each operation pattern and for each installation position of each vibration sound detection sensor from the measured value,
For each installation position of each vibration sound detection sensor and for each operation pattern, a warning judgment is made by comparing the vibration sound detected by each vibration sound detection sensor with the set alarm generation level, and the alarm generation level is reached. Then, there is provided a monitoring / diagnosis system for a rotating machine device, characterized in that an alarm is displayed by the alarm display means.

  Rather than detecting vibration of a rotating machine device and performing monitoring diagnosis, even if vibration sound generated by vibration is detected, the measured value of the vibration sound is compared with an alarm level to perform monitoring diagnosis of the rotating machine device. be able to. Note that both vibration detection and vibration sound detection may be performed.

  As described above, in the monitoring / diagnosis system for a rotating machine device according to the present invention, the sensors installed in the bearing portion of the rotating shaft and a number of other locations are classified according to the operation pattern based on the operation state parameters. The vibration occurrence state at the location where the sensor is installed is monitored, and if an abnormal vibration occurs at the location where the sensor is installed, the location where the abnormal vibration occurs is identified and an alarm is generated. As described above, in the present invention, not only the vibration of the rotating shaft is monitored, but also the vibrations of the installation locations of a large number of sensors are respectively monitored, so that the tendency of vibration generated in the entire rotating machine device is constantly monitored. In addition, it is possible to detect an abnormality in a portion other than the rotating shaft before the occurrence of abnormal vibration of the rotating shaft, and it is possible to monitor the rotating machine apparatus so that no abnormality occurs by maintaining the rotating machine device before the rotating shaft abnormality occurs.

In addition, the system of the present invention enables relative comparisons such as trend management within the same operating state pattern, eliminates the effects of changes in operating state parameters, and clarifies only data changes due to abnormalities such as equipment deterioration and failures. Can do.
Furthermore, since each sensor is only divided and managed for each of a plurality of operation patterns based on the operation state parameter, the state can be easily and reliably monitored.
Furthermore, if a management number is assigned and the measured value is managed for each management number, it is possible to make an alarm judgment at a specific alarm level at a specific management number, and display it over time corresponding to a certain vibration value. This makes it easy to see changes in data associated with failures.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 6 show a first embodiment of the present invention.
The monitoring / diagnosis system 10 for a rotating machine device according to the present invention continuously monitors the state of a large number of vibration detection sensors installed in a pump device 11 which is one of the rotating machine devices installed in a factory, and the installation position of each sensor. The status of the location where the sensor is installed is monitored and diagnosed every time and for each operation status parameter.

  As shown in FIG. 1, the monitoring diagnosis system 10 includes a plurality of vibration detection sensors 20 (20A to 20D) mounted on a pump facility 11 and connected to the vibration detection sensors 20A to 20D, and the monitoring diagnosis. A monitor (alarm display means) 40 that outputs an alarm when an abnormality diagnosis is made by connecting to the device 30 and a tachometer 21 that measures the number of revolutions of the pump are provided.

The vibration detection sensors 20 </ b> A to 20 </ b> D are respectively installed at locations where vibration is generated by the rotational drive of the pump.
Specifically, the anti-load-side bearing mount 11b, the load-side bearing mount 11c, the coupling-side bearing mount 11d, and the anti-coupling-side bearing mount 11e of the pump drive motor provided on the basic mount 11a of the pump facility 11 Are attached with vibration detection sensors 20A to 20D, respectively, and four measurement positions are provided.
In order to simplify the description, the vibration detection sensors 20A to 20D are provided at four places as described above, but a great number of vibration detection sensors are attached depending on the type of the rotating machine device.

As shown in FIG. 2, the monitoring / diagnosis device 30 connected to each vibration detection sensor 20 includes a recording unit 31, a processing unit 32, and an input / output unit 33, and the processing unit 32 is determined to be an arithmetic processing unit 34. A portion 35 is provided.
The monitoring / diagnosis device 30 acquires the amplitude for each installation position of each vibration detection sensor based on the sensor signal detected by the vibration detection sensor 20 during the initial adjustment period, and detects the rotation speed of the pump based on the acquired amplitude. A certain normal amplitude level is measured for each of the plurality of operation patterns in accordance with the number of revolutions received from the rotating tachometer 21 and is measured for each installation position of each vibration detection sensor 20 and for each of the operation patterns. The alarm generation level of a certain level is set in advance.
After the initial adjustment period, for each installation position of each vibration detection sensor 20 and for each of the operation patterns, alarm determination is performed by comparing the vibration level detected by each vibration detection sensor 20 with the set alarm generation level, When the alarm generation level is reached for each vibration detection sensor 20, the monitor 40 displays an alarm.
Hereinafter, the configuration of each of the units 31 to 35 of the monitoring / diagnosis apparatus 30 will be described.

  The input / output unit 33 of the monitoring / diagnosis apparatus 30 is connected to the vibration detection sensors 20A to 20D and the tachometer 21 that detects the rotation speed of the pump, and receives measurement values from the vibration detection sensors 20A to 20D and the tachometer 21. ing. Further, it is connected to the monitor 40 and outputs a signal to display a warning on the monitor 40. The vibration detection sensors 20A to 20D and the tachometer 21 may be connected wirelessly.

The recording unit 31 accumulates alarm level data for each management number set in the initial adjustment period. In the present embodiment, pumping equipment such as fluid pressure, flow rate, fluid viscosity, oil temperature, on-road, off-float, etc., together with measured values detected by the vibration detection sensors 20A to 20D and data on the number of rotations of the pump at the time of the measurement. 11 is stored.
The accumulation of the alarm level data is performed during the initial adjustment period of the pump equipment 11, and the initial adjustment period is, for example, about one week to three months. The recording unit 31 includes a rewritable nonvolatile memory such as an EEPROM, a ROM, a RAM, and the like.

The processing unit 32 includes an arithmetic processing unit 34 and a determination unit 35.
In the processing unit 32, the arithmetic processing unit 34 sets an alarm level from the measured value measured during the initial adjustment period. As the alarm level, two levels of a caution level and a danger level are set. For example, the caution level is set to 3 times the normal vibration level described later, and the danger level is set to 5 times.

  The determination unit 35 performs monitoring diagnosis of the pump equipment 11 after the end of the initial adjustment period, uses the alarm level in the arithmetic processing unit 34, and compares it with the vibration levels 20A to 20D detected by the vibration detection sensors 20A to 20D. Alarm judgment.

The monitor 40 connected to the input / output unit 33 of the monitoring / diagnosis device 30 displays an alarm when an abnormality diagnosis is made by the determination unit 35 of the monitoring / diagnosis device 30.
Note that a speaker may be attached to the monitor 40 to notify the warning by voice or warning sound.

Next, the setting of the alarm level during the initial adjustment period will be described.
As shown in the flowchart of FIG. 3, the alarm generation level accumulates the amplitude of the sensor signals detected by the vibration detection sensors 20A to 20D for each installation position of the vibration detection sensors 20A to 20D (S11).
The accumulated amplitude is averaged for each rotation speed of the pump acquired from the tachometer 21 to calculate a constant normal amplitude level (S12).
Based on the normal amplitude level, a management number is assigned for each vibration detection sensor 20A to 20D and the number of rotations of the pump, and the alarm generation level at a certain level is set in advance (S13).

In this embodiment, when the rotational speed of the pump is 600 to 1000 rpm, it is divided into three as a high speed rotation pattern (1), 300 to 600 rpm as a medium speed rotation pattern (2), and 10 to 300 rpm as a low speed rotation pattern (3). ing.
That is, the detected values detected from the vibration detection sensor 20A are assigned management codes A- (1), A- (2), and A- (3) for each of the operation patterns (1) to (3). ing.
Similarly, in the vibration detection sensor 20B, the management codes B- (1), B- (2), and B- (3) are attached.
Similarly, the vibration detection sensor 20C is assigned management codes C- (1), C- (2), and C- (3).
Similarly, in the vibration detection sensor 20D, management codes D- (1), D- (2), and D- (3) are attached.

  Next, after the initial adjustment period ends, monitoring diagnosis after the pump facility enters normal operation will be described based on the flowchart of FIG.

The monitoring / diagnosis device 30 receives the measurement values detected by the vibration detection sensors 20A to 20D and also receives the rotation speed measurement value from the tachometer 21 (S21).
The received vibration detection sensors 20A to 20D are divided into the operation patterns (1) to (3) based on the rotational speed received by the tachometer 21, and the above-described A- (1) to D- (3). Manage with a management number.
For example, when the rotational speed is 700 rpm, that is, when the operation pattern is (1), the detection value received from the vibration detection sensor 20A is managed with the management number A- (1).

Next, the determination unit 35 reads the alarm level having the same management number as the data received from the vibration detection sensor from the recording unit 31 (S22).
The determination unit 35 compares the attention level or the danger level read from the recording unit 31 with the vibration level detected by the vibration detection sensors 20A to 20D (S23).
As a result of the comparison, if the vibration level is less than the caution level, it is determined that the operation is normal (S24). If the warning level is higher than the warning level and lower than the warning level, the warning state is set (S25). If the warning level is higher than the warning level, the warning state is determined (S26).

  In the case of the vibration detection sensor 20A, the monitor 40 displays a graph showing the number of rotations and the amplitude with time change without distinguishing the operation pattern as shown in FIG. ) To (C), a graph of measured values for each management number distinguished by the operation pattern is displayed.

In the graphs shown in FIGS. 6A to 6C for each management number, the vibration level Z detected by the vibration detection sensor 20A is displayed, and the respective alarm levels (caution level X and danger level Y) are displayed. Yes.
In the vibration detection sensor 20A, when the management number is A- (1), the vibration level Z detected by the vibration detection sensor 20A is not less than the attention level X and less than the danger level Y as shown in FIG. Therefore, an alarm of caution status is displayed on the monitor 40 on the screen.
When the danger level is Y or higher, a warning display of a dangerous state is displayed on the screen. On the other hand, nothing is displayed when the normal state is determined.
The monitoring diagnosis described above is performed at a predetermined cycle such as 1 minute or 1 hour.

In the case of the system, since the state monitoring is performed for each vibration detection sensor for each operation pattern divided based on the rotation speed of the pump, the vibration at the installation position of each vibration detection sensor 20 is affected by the change in the rotation speed. Can be removed and monitored. In this way, it is possible to clearly monitor and diagnose the change in the measured value data detected by each vibration detection sensor, and to quickly grasp the failure or deterioration of the installation location of the vibration detection sensor diagnosed as abnormal.

In addition, since the operation is divided and managed for each of the plurality of operation patterns based on the rotation speed, it is possible to perform relative comparison such as vibration tendency management of each vibration detection sensor within the same operation pattern.
Furthermore, since each vibration detection sensor is managed by assigning a management number for each operation pattern, and an alarm level is set for each management number, it corresponds to the operation pattern at the installation position of each vibration detection sensor. The alarm determination can be easily performed, and the abnormality occurrence tendency according to the driving situation can be easily monitored at each installation position.

In this embodiment, only the rotation speed of the pump is used as the operation state parameter for the sake of simplicity of explanation. However, if the operation state parameters such as the fluid pressure and the flow rate are set in combination, the monitoring diagnosis is performed. The accuracy can be further increased.
Further, it is preferable that the alarm level set in the initial adjustment period is reset after the rotary machine device is operated for a predetermined period. In this case, the alarm level is reset for each management number from the vibration data during operation for a predetermined period.

FIG. 7 shows a second embodiment of the present invention.
A difference from the first embodiment is that a vibration sound detection sensor (not shown) such as a microphone is used instead of the vibration detection sensor 20.
The monitoring value diagnosis of the pump state is performed by comparing the measured value (decibel) composed of the volume detected by the vibration sound detection sensor and the alarm level set during the initial adjustment period for each management number.
In addition, since another structure and an effect are the same as that of 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

1 is an overall schematic configuration diagram illustrating a first embodiment. It is a block diagram of a monitoring diagnostic apparatus. It is a flowchart which shows the setting of the alarm level in an initial adjustment period. It is a flowchart which shows the monitoring diagnosis at the time of a driving | operation. It is a figure which shows the screen which displays a driving | running state. (A)-(C) are figures which show the screen which displays the driving | running state according to management number. (A)-(C) are figures which show 2nd Embodiment and show the screen which displays the driving | running state according to management number.

Explanation of symbols

10 monitoring diagnosis system 20 (20A-20D) vibration detection sensor 30 monitoring diagnosis device,
40 Monitor (alarm display means)
X Caution level (alarm level)
Y Danger level (alarm level)
Z vibration level

Claims (7)

Vibration detection sensors installed at a plurality of locations where vibration is generated by the rotational drive of the rotating machine device;
A monitoring and diagnosis device connected to the plurality of vibration detection sensors;
Connected to the monitoring and diagnosing device, comprising alarm display means for outputting an alarm when an abnormality diagnosis is made in the monitoring and diagnosing device,
The monitoring / diagnosis device is abnormal for each of a plurality of operation patterns classified based on an operation state parameter including a rotation speed of the rotary machine device and a load condition to the rotary machine device, and for each installation position of each vibration detection sensor. Set the vibration alarm generation level,
The alarm generation level is acquired for each installation position of each vibration detection sensor from the sensor signals detected by the plurality of vibration detection sensors during an initial adjustment period, and the acquired amplitude is acquired for each of the plurality of operation patterns. A constant normal amplitude level is measured by averaging, and the alarm generation level of a constant level is set in advance for each operation pattern and for each installation position of each vibration detection sensor from the measured value,
The operational status of the rotating machine device is determined by comparing the vibration level detected by each vibration detection sensor with the set alarm generation level for each installation position of each vibration detection sensor and for each operation pattern. And an alarm is displayed by the alarm display means when the alarm generation level is reached.   2. The rotation according to claim 1, wherein an alarm determination is performed by attaching a management number to each installation position of each of the plurality of vibration detection sensors and for each operation pattern, and the alarm display unit displays an alarm for each management number. Monitoring and diagnosis system for mechanical devices.   The monitoring diagnosis system for a rotary machine device according to claim 1 or 2, wherein the operation pattern of the rotary machine device is divided into a low-speed rotation pattern, a medium-speed rotation pattern, and a high-speed rotation pattern according to the number of rotations. .   The operating state parameter includes power applied to a driving source for rotating the rotary machine, fluid pressure, flow rate, fluid viscosity, oil temperature, on-roof, unloading for a pump, air flow for a fan, damper opening. In the case of a rolling mill, it includes at least one of rolled material, and in the case of conveying equipment, it includes at least one of conveying material, and further includes a temperature condition and a humidity condition when the rotary machine device is driven to rotate. 4. The monitoring and diagnosis system for a rotating machine device according to claim 1.   5. The installation position of the plurality of vibration detection sensors includes a bearing portion of the rotating machine device, an outer surface of a bearing storage box of the rotating machine device, and a case of the rotating machine device. Monitoring and diagnosis system for rotating machinery.   The monitoring / diagnosis system for a rotary machine device according to any one of claims 1 to 5, wherein the alarm level set in the initial adjustment period can be reset after the rotary machine device has been operated for a predetermined period. Vibration sound detection sensors installed at a plurality of locations where vibration is generated by the rotational drive of the rotating machine device;
A monitoring diagnosis device connected to the plurality of vibration sound detection sensors;
Connected to the monitoring and diagnosing device, comprising alarm display means for outputting an alarm when an abnormality diagnosis is made in the monitoring and diagnosing device,
The monitoring and diagnosing device is provided for each of a plurality of operation patterns divided based on an operation state parameter including a rotation speed of a rotating machine device and a load condition on the rotating machine device and for each installation position of each vibration sound detection sensor. With alarm generation level of abnormal vibration sound,
The alarm generation level is obtained by acquiring an amplitude sound for each installation position of each vibration detection sensor from the sensor signals detected by the plurality of vibration sound detection sensors during an initial adjustment period. A certain normal vibration sound level is measured by averaging for each pattern, and the alarm generation level of a certain level is set in advance for each operation pattern and for each installation position of each vibration sound detection sensor from the measured value,
For each installation position of each vibration sound detection sensor and for each operation pattern, a warning judgment is made by comparing the vibration sound detected by each vibration sound detection sensor with the set alarm generation level, and the alarm generation level is reached. Then, a monitoring and diagnosis system for a rotating machine device, wherein an alarm is displayed by the alarm display means.

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