JP2001032724A - On-line life diagnostic system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To predict life with high accuracy without any contradiction by diagnosing while analyzing life with the assistance of the on-line monitoring and by reflecting information on periodic inspection so that the life of an equipment is accurately predicted during operation, parts can be used as long as possible and appropriate maintenance control is executed. SOLUTION: During the operation of an equipment, an event causing a damage factor and operating parameter are respectively measured and converted into numerical data, so that the changing trend of the event during the present operation is found out. A pattern to be matched is selected by being compared with plural types of operating patterns previously analyzed according to the predicted operating conditions of the equipment. An on-line measured value along the selected pattern is corrected by a measured value at the time of periodic inspection which is analyzed based on the actual data at the time of periodic inspection. Damage at the present point of time is evaluated, and comparison is made between the analytic pattern of a damage trend based on the actual data obtained at the time of periodic inspection or at the time of experiments and the pattern of the measured value by the damage evaluation at the present point of time, thereby deviation between both the patterns is found out. The pattern is corrected based on the deviation, and the remaining life the equipment is determined based on a damage evaluation result.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for monitoring abnormalities or diagnosing the life of a device or a member applied to a thermal power plant or the like, for example, a motor component such as a gas turbine, and particularly predicts the life during operation. The present invention relates to an online life diagnosing system capable of performing operation and maintenance management judgment and life prediction with high accuracy.

[0002]

2. Description of the Related Art In recent years, from the viewpoint of effective use of energy and protection of the global environment, in order to increase the efficiency of power plants and the like,
The temperature and size of motors such as gas turbines are rapidly increasing, and the use conditions of the members are becoming increasingly severe. Damage factors applied to components include high temperature, vibration, erosion, corrosion, oxidation, abrasion, creep, thermal fatigue, deterioration, foreign matter adhesion / collision, etc. These are difficult to measure during operation. A method of inspecting at the time of regular inspection and performing a life diagnosis has been proposed (for example, Japanese Patent Laid-Open No. 8-160).
035). However, with the increasing complexity of mechanical structures and the interaction of various deterioration and damage factors, it is necessary to establish a method to detect and predict trends in damage during operation and prevent abnormalities before they occur. It has become

A conventional online life diagnosis system integrates life consumption based on a calculation formula set in advance according to an operation record and displays a part management method (Japanese Patent Application Laid-Open No. 54-158506). It has functions such as monitoring by deformation or gap monitoring and issuing an alarm when an abnormal value occurs in comparison with the design calculation value (for example,
JP-A-9-310605). However, the number of sites and measurement targets that can be measured online is limited, so there is a need to establish a method that utilizes analytical life expectancy prediction methods and further improves the accuracy by reflecting information at regular inspections. No such method and system has been proposed.

[0004]

As described above, since the mechanical structure is becoming more and more complex and various deterioration and damage factors interact with each other, it is possible to predict and predict the change tendency of damage during operation. It has been required to establish a method for preventing such problems.

[0005] Further, since the parts that can be measured online and the objects to be measured are limited, there is a need to establish a method of using an analytical life prediction method and further improving the accuracy by reflecting the information at the time of regular inspection. .

The present invention has been made in view of such circumstances, and has been made in order to accurately predict the life of equipment during operation, to use parts as long as possible, and to perform online monitoring in order to perform appropriate maintenance. It is an object of the present invention to provide an online life diagnosis system capable of performing diagnosis while performing life analysis with the aid of it, and performing highly accurate life prediction without inconsistency by reflecting regular inspection information.

[0007]

In order to achieve the above object, according to the first aspect of the present invention, during operation of a device whose life is to be diagnosed, an event that causes damage to a component of the device, The operation parameters of the device in which the event has occurred are measured and converted into numerical data, and the change tendency of the event during the current operation is determined based on the numerical data. A plurality of types of operation patterns analyzed in advance corresponding to the assumed operation conditions of the device, and a matching pattern is selected, and the online measurement values along the selected pattern are used as actual data at the time of regular inspection. The current damage evaluation is performed by correcting with the measurement values at the time of regular inspection analyzed based on the data, and the analysis pattern of the damage tendency based on the actual data obtained at the time of regular inspection or experiment And the measured value pattern obtained by the current damage evaluation is compared to determine a deviation between the two patterns, the current pattern is corrected based on the deviation, and the remaining life of the device is calculated based on the corrected damage evaluation result. An online life diagnosis system characterized by determining

According to the invention of claim 2, as shown in FIG.
In-operation measuring means 1 attached to an apparatus or a member thereof and measuring the state of the apparatus or the member during operation
Operating parameter measuring means 2 attached to the operation control device of the device for measuring elements required for operation control of the device, and communication means for transmitting and receiving measurement signals obtained by these measuring means 1 and 2 3, an in-operation measured value change tendency analysis means 4 for receiving the measurement signals via the communication means 3 and calculating a change tendency of the measurement signals with respect to the operation time or the number of startups, and The temperature and stress of each part of the member are calculated using the finite element method or the like with respect to the conditions, and a comparison is made between the analysis database 5 tabulated and the analysis values stored in the analysis database 5 and the measured values. Or, a measured value-analysis value matching unit 6 for correction, an analytical life prediction unit 7 for evaluating the life of the member using the compared or corrected analysis value, and an inspection data at a regular inspection of the target device. Storing the data, periodic inspection previously obtained relation between the operating time or start-stop frequency data trend analysis means 8
The regular inspection information-online measurement matching means 9 for comparing and correcting the results of the regular inspection data trend analysis and the damage evaluation result based on the online measurement, and the damage evaluation result corrected by the regular inspection information by this means. And a maintenance management setting means 1 for determining a maintenance management timing and method based on the remaining life determination result.
1 and a display means 12 for displaying the above-mentioned evaluation determination result.

In the present invention, each means having the following functions can be applied.

The in-operation measuring means includes: an optical temperature measuring means for measuring the temperature of the structural member in a non-contact manner; an optical crack measuring means for measuring a crack in the structural member in a non-contact manner; A mechanical or optical displacement measuring means for measuring contact or non-contact, or an oxidized thinning monitor means for measuring an oxidized thinned amount of a structural member, or a combination thereof, and a use state of the member And the damage amount are converted into numerical data.

The operation parameter measuring means is a means for measuring the fluid temperature, the number of revolutions, the load, the operation time or the number of times of starting and stopping required for the operation control of the prime mover, for example, a thermometer, a tachometer, a pressure gauge, a flow meter, or the like. And a load measuring device.

The measurement signals of these operating-measuring means and operating-parameter measuring means are transmitted to the system main body by wireless or wired communication means.

[0013] The in-operation measurement value change tendency analysis means includes a program for numerically optimally approximating the change tendency of the measurement signal received from the in-operation measurement means and the operation parameter measurement means with respect to the operation time or the number of times of starting and stopping. Be incorporated.

On the other hand, in the analysis database, temperature, stress, and strain, which are the use state quantities of each member, are calculated in advance by using a finite element method or the like with respect to the assumed operating conditions of the target device, and the operating patterns and A table is made in association with the usage state quantity.

The measured value-analysis value matching means compares the relationship between the used state quantity obtained by the in-operation measured value main trend analysis means with the operation time or the number of times of start / stop with an analysis database and agrees with the analysis value. One of them is selected, or the deviation between them is calculated, and a correction method is determined based on the change tendency.

The analytical life predicting means obtains a number-dependent type fatigue life and a time-dependent type creep, oxidation or wear life based on the corrected use conditions.

Here, the regular inspection data trend analysis means measures deterioration / damage (microstructure, deformation, oxidation, abrasion, cracks, coating peeling, etc.) at the time of regular inspection of the target equipment, and the operation time or start / stop. Find the relationship with the number of times.

The regular inspection information-online measurement matching means compares the result of the trend analysis of the regular inspection data with the tendency of the analytical life prediction means for damage, calculates a deviation between the two, and determines a correction method based on the tendency of the change. judge.

The remaining life determining means applies the number-dependent life consumption and the time-dependent life consumption obtained as described above to an allowable start / stop number-permissible operation time diagram according to the material and use conditions. And predict how long it will take to reach the limit.

The maintenance management setting means determines the next inspection time, operation restriction, repairability, replacement and continuous use based on the remaining life determination result.

The display means displays these results on an image and transmits a signal to an operation control device or the like.

According to the third aspect of the present invention, the in-operation measuring means is an in-operation metal temperature measuring means for measuring a metal temperature or a surface temperature of a target portion by an optical sensor. 3. The method according to claim 2, wherein the measured value change tendency analyzing means is a change tendency analyzing means during metal temperature operation, and calculates a relationship between the measured metal temperature value and the operation time or the number of times of starting and stopping and uses the relationship for the life evaluation. Provide an online life diagnosis system.

In the invention according to claim 4, the measured value-analysis value matching means includes: a temperature at a representative time point between start-rate-stop in a change characteristic of the metal temperature during operation; The on-line life diagnosis system according to claim 2 or 3, wherein a comparison is made regarding a temperature decrease rate at the time of stoppage.

In the fifth aspect of the present invention, the regular inspection information used in the regular inspection information-on-line measurement matching means is a member estimated from a precipitate size in a microstructure obtained by a cutting inspection or a replica inspection of a device or a member. The metal temperature estimated value of each part, the temperature change history of each part of the member obtained by the measured value-analysis value matching means is corrected using the metal temperature estimated value, and used for life evaluation. An online life diagnosis system according to any one of 2 to 4, is provided.

[0025] In the invention of claim 6, the regular inspection information used in the regular inspection information-on-line measurement matching means is measurement information of the maximum crack length, the total crack length or the crack length density of the member. The difference between the change tendency of the crack measurement value with respect to the number of times of activation and the change tendency of the crack amount obtained with the analytical life prediction means with respect to the number of times of activation is compared, and the life evaluation condition is corrected based on the change tendency of the deviation. The online life diagnosis system according to any one of claims 2 to 5, wherein a method is determined and used for life evaluation.

In the invention of claim 7, the inspection information used in the inspection information-on-line measurement matching means is a creep strain amount based on a precipitate size obtained from microstructure observation of the member. Of the change in the operating time and the change in the amount of creep strain obtained by the analytical life prediction means with respect to the operating time, and a correction method of the life evaluation condition is determined based on the change in the deviation. An online life diagnosis system according to any one of claims 2 to 5, which is used for life evaluation.

According to the present invention, the regular inspection information used in the regular inspection information-on-line measurement matching means is measurement information of the oxidation depth of the member. Comparing the deviation of the change tendency with respect to the operation time of the oxidation depth amount obtained by the analytical life prediction means, determining a method of correcting the life evaluation condition from the change tendency of the deviation, and using the method for the life evaluation. An online life diagnosis system according to any one of claims 2 to 5 is provided.

In the ninth aspect of the present invention, the remaining life determining means takes fatigue as the number-dependent type life, and takes the shorter of creep or oxidation as the time-dependent type life. The time-dependent life is set in advance based on the results of creep test and oxidation test of the member by experiment, and is further set by tensile holding. Based on the results of the low cycle fatigue test or the tensile retention thermal fatigue test, set an intermediate region between the number-dependent life and the time-dependent life, and determine the usable limit using these lower limits. An online life diagnosis system according to any one of claims 2 to 8, wherein an operation time diagram is used.

[0029] In the invention of claim 10, remaining life in determining means, thermomechanical fatigue test and a synchronization ν of the test waveform in the low cycle fatigue test temperature under constant, breakage of the holding waveform to failure repetition number N _f0 without holding The relationship with the ratio of the number of repetitions N _f (N _f / N _f0 : life reduction rate)

(Equation 2) 2. The online life diagnosis system according to claim 1, wherein the determination is made based on the following formula, and the allowable allowable number of starts is determined.

According to the eleventh aspect of the present invention, the in-operation measuring means is a thermal barrier coating temperature operating means installed on the surface of the device or member, and measures the thermal barrier coating surface temperature of the target portion by an optical sensor. The operation-measured value change trend analyzing means analyzes the relationship between the thermal barrier coating temperature measured value and the operation time or the number of times of starting and stopping by the thermal barrier coating temperature changing trend analyzing means. 2. The online life diagnosis system according to claim 1, wherein the system detects the peeling of the thermal coating.

In the twelfth aspect of the present invention, the remaining life determining means monitors a period until the thermal barrier coating is peeled off, and obtains a temperature, a stress and a strain after the thermal barrier coating is peeled off based on a temperature correction calculation. 2. The life is predicted by taking fatigue as a mold life and taking shorter creep or oxidation as a time-dependent life.
1. An online life diagnosis system according to item 1 is provided.

In the thirteenth aspect of the present invention, the in-operation measuring means is provided with an optical gap measuring means on the casing side opposed to the high-temperature blade tip of the prime mover to measure a change in the position of the blade tip. The operating measurement value change tendency analyzing means is a gap temperature operating change tendency analyzing means, and determines the relationship between the oxidation thinning or creep deformation of the blade tip and the operation time or the number of start / stop times from the change in the gap. 2. The online life diagnosis system according to claim 1, wherein the system detects the sign of abnormality by analyzing.

In the fourteenth aspect of the present invention, in the regular inspection information-online measurement matching means, the regular inspection information is measurement information of the oxidation thinning amount of the wing tip portion, and the change tendency of the oxidation thinning amount with respect to the operation time. And comparing the deviation of the oxidation thinning amount with the change tendency with respect to the operation time obtained by the analytical life prediction means, and determining a correction method of the life evaluation condition from the change tendency of the deviation and using the same for the life evaluation. 14. An online life diagnosis system according to claim 13, characterized in that:

According to a fifteenth aspect of the present invention, the regular inspection information used by the regular inspection information-on-line measurement matching means is measurement information of the elongation of the blade, and the tendency of the elongation to change with respect to the operation time and the analytical life. 2. The method according to claim 1, wherein a deviation of a change tendency of the creep deformation amount with respect to an operation time obtained by the prediction means is compared, a method of correcting a life evaluation condition is determined from the change tendency of the deviation, and used for life evaluation.
3. An online life diagnosis system according to item 3.

In the sixteenth aspect of the present invention, the in-operation measuring means is provided with an optical gap measuring means opposite to the crack initiation part of the device or member, and the crack propagation for measuring a change in the crack size. The in-operation measurement means, the in-operation measured value change tendency analysis means is a crack propagation in-operation change tendency analysis means, and the crack length change tendency with respect to the operation time or the number of start / stop, and the analytical life prediction. Comparing the deviation of the amount of crack growth obtained with the means with the change in the operating time or the number of times of starting and stopping, determining the method of correcting the life evaluation condition from the change in the deviation, and using it for the life evaluation. An online life diagnosis system according to claim 1 is provided.

In the seventeenth aspect of the present invention, the regular inspection information used in the regular inspection information-on-line measurement matching means is an estimated metal temperature based on the measurement of the oxidation depth of the member. 15. The method according to claim 14, wherein the temperature change history of each part of the member obtained by the measured value-analysis value matching means is corrected and used for life evaluation.
The described online life diagnostic system is provided.

In the invention of claim 18, the regular inspection information used in the regular inspection information-on-line measurement matching means is measurement information of a crack length of a member, and the crack length corresponds to the operation time or the number of times of starting and stopping. The change tendency and the deviation between the change tendency with respect to the operating time or the number of start / stop times of the crack growth amount obtained by the analytical life prediction means,
15. The online life diagnosis system according to claim 14, wherein a correction method of the life evaluation condition is determined from the change tendency of the deviation.

According to the nineteenth aspect of the present invention, the in-operation measuring means includes an oxidation monitor material that is exposed on the same surface as a member surface of the equipment and is disposed so as to maintain insulation from the member. Oxidation thinning amount during operation measuring means to measure the oxidation thinning amount by measuring the electrical resistance change, the operating measurement value change trend analysis means, the oxidation thinning amount during operation trend analysis means, The deviation between the change in the oxidized thinning amount with respect to the operation time or the number of startups and stoppages is compared with the deviation between the change in the oxidized thinning amount with respect to the operation time or the number of starts and stoppages obtained by the analytical life prediction means. 2. The online life diagnosis system according to claim 1, wherein a correction method of the life evaluation condition is determined from the change tendency and used for life evaluation.

In the twentieth aspect, the in-operation measuring means is a wing deformation in-operation measuring means having an optical displacement meter disposed so as to measure an amount of stagnation of the wing of the equipment. The operating measurement value change tendency analysis means is a blade deformation operation change tendency analysis means, and the change tendency of the blade contact amount with respect to the operation time or the number of times of starting and stopping, and the blade contact amount obtained by the analytical life prediction means. 2. The online life diagnosis system according to claim 1, wherein a deviation from a change tendency with respect to the operation time or the number of times of start / stop is compared, and a method of correcting the life evaluation condition is determined from the change tendency of the deviation.

In the invention of claim 21, the in-operation measuring means is a deformed in-operation measuring means having a displacement detecting rod or a strain gauge pressed against a device or a member via a spring. The tendency analysis means is a change tendency analysis means during the deformation operation, the change tendency of the deformation amount of the member with respect to the operation time or the number of start / stop, and the operation time or the start / stop of the deformation amount of the member obtained by the analytical life prediction means. Compare the deviation from the change tendency with the number of times,
2. An online life diagnosis system according to claim 1, wherein the life evaluation condition is corrected based on the change tendency of the deviation and used for life evaluation.

In the invention according to claim 22, the in-operation measuring means is a displacement in-operation measuring means having displacement detecting means arranged at a plurality of locations so as to detect the positions and postures of devices or members. The measurement value change tendency analysis means during operation is a change tendency analysis means during displacement operation, and estimates the amount of wear thinning of the mounting portion and the like from the change tendency of the position and orientation of the part with respect to the operation time or the number of times of starting and stopping. Comparison of the deviation of the calculated change in the amount of wear thinning with respect to the operating time or the number of starts and stops obtained by the dynamic life prediction means, and corrects the life evaluation condition correction method based on the change in the deviation and uses it for life evaluation. The online life diagnosis system according to claim 1, wherein:

According to a twenty-third aspect of the present invention, the in-operation measuring means is a rotor deflection in-operation measuring means having displacement detection means disposed at a plurality of locations so as to detect the deflection of the rotor of the prime mover. The medium measured value change tendency analysis means is a change tendency analysis means during rotor deflection operation, and the change tendency of the deflection at the center of the rotor with respect to the operation time or the number of times of starting and stopping, and the stress rotor deflection estimation obtained by the analytical life prediction means. 2. The online life according to claim 1, wherein the deviation of the value from the change tendency with respect to the operation time or the number of times of start / stop is compared, a method of correcting the life evaluation condition is determined from the change tendency of the deviation, and the method is used for the life evaluation. Provide a diagnostic system.

[0043]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an online life diagnosis system according to the present invention will be described below with reference to the drawings.

First Embodiment (FIGS. 2 to 16) (corresponding to claims 1 to 10) This embodiment relates to an online life diagnosis system for a gas turbine blade, and FIG. 2 is a block diagram showing the system. It is a block diagram.

As shown in FIG. 2, the system according to the present embodiment employs, as an in-operation measuring means 1 attached to a gas turbine blade, a metal temperature operation for online measurement of the metal temperature of the gas turbine blade. An intermediate measuring unit 15 is provided. The specific configuration of the metal temperature operation measuring means 15 will be described later in detail with reference to FIGS.

An operation parameter measuring means 2 provided in the operation control device is provided to measure the number of revolutions of the gas turbine and the like. The specific configuration of the operation parameter measuring means 2 will be described later in detail with reference to FIGS.

The measurement signals obtained by these measuring means 2 and 15 are transmitted to the online life monitoring system main unit A via the communication means 3. In the online life monitoring system main body A, the metal temperature change tendency analysis means 16 as the operation measurement value change tendency analysis means 4, the measured value-analysis value matching means 6, and the analytical life prediction means 7 are provided.
And regular inspection information-online measurement matching means 9, remaining life determination means 10, and maintenance management setting means 11.

The in-operation measured value change tendency analysis means 4 measures the measurement signal of the metal temperature of the gas turbine rotor blade output from the metal temperature measurement means 15 and the measurement such as the turbine speed output from the operation parameter measurement means 2. A signal is received, and a change tendency of the metal temperature of the moving blade with respect to the operation time or the number of startups of the gas turbine is calculated based on the received measurement signal.

The measured value-analysis value matching means 6 receives a data signal stored in the analysis database 5 such as an external storage device and an output signal from the metal temperature operating change tendency analyzing means 16. In the analysis database 5,
Analytical values such as temperature and stress of the gas turbine rotor blade calculated in advance by using the finite element method or the like with respect to the assumed operating conditions of the target device are stored in a table, and the analytical values of the analytical database system 5 are stored. The measured value from the change tendency analysis means 16 during the metal temperature operation is compared with the measured value-analysis value matching means 6, and the matching described later is performed. The analytical life prediction means 7 stores the inspection data at the time of the regular inspection of the gas turbine and obtains the relation with the operation time or the number of times of starting and stopping, and the constant inspection data trend analyzing means 8 and the measured value-analysis value matching means 7. The life evaluation of the gas turbine rotor blade is performed using the analysis value from. The regular inspection information-online measurement matching means 9 compares and corrects the results of the regular inspection data trend analysis and the damage evaluation result based on the online measurement, and the remaining life determining means 10 corrects the damage based on the regular inspection information. The remaining life is evaluated based on the evaluation result. Further, the maintenance management setting means 11 determines the maintenance management timing and method from the remaining life determination result. The above-described evaluation determination result is displayed on the display unit 12.

FIGS. 3 and 4 are schematic views showing different damaged states of the first-stage moving blade 13 of the gas turbine which is the object of the present embodiment.

The rotor blade 13 shown in FIG. 3 has a blade portion coated with an oxidation-resistant metal coating, and shows a state in which an oxidized portion 13a is generated by a high-temperature gas during operation. Further, in a portion where the thermal stress is high, fatigue damage is accumulated due to the generation and growth of microcracks due to repetition of strain, leading to the generation of macrocracks at a visual level (several mm). Further, in the inside of the wall thickness, a creep strain accumulates due to a tensile stress applied during a steady operation, leading to a macro crack generation through a void generation / growth / coalescence process. Thermal fatigue is a time-dependent form of life consumption,
Oxidation and creep are time-dependent modes of life consumption, and it is necessary to consider these factors in evaluating the life of the bucket 13. FIG. 3 also shows a crack 13b generated by such a factor.

FIG. 4 shows a rotor blade 13 provided with a thermal barrier coating (TBC) according to another embodiment described later.
This figure shows a form of damage when BC peeling 13c or a crack 13d is generated due to the BC peeling 13c. When the thermal barrier coating is sound, damage to the substrate is slight, but when the TBC peels off, a local high-temperature portion (hot spot) is generated, and damage such as oxidation and thermal fatigue is accelerated.

FIG. 5 is an overall configuration diagram showing the state of attachment of the metal temperature operation measuring means 15 to the gas turbine.
FIG. 6 is an enlarged view showing a main part of FIG. The in-metal temperature operation measuring means 15 employs, for example, a pyrometer 19 as a radiation thermometer for sensing temperature using infrared rays, and is attached to a casing 20. The pyrometer 19 has a configuration in which a sensor unit 24 for detecting infrared rays is housed in an elongated protective cylinder 25, and is installed through a hole formed in a part of the first stage stationary blade 21.
The position to be measured is the leading edge of the first stage bucket 22,
A heat-resistant protective lens 26 is provided on the tip side of 5 at a position facing the gas passage portion 20a from the stationary blade 21. The temperature of the leading edge of the first stage blade 22 is determined by the protection lens 26.
The detection is performed by the infrared ray detection in the sensor unit 24 through the.
Then, the measurement signal is taken out of the casing 20 and transmitted to the change tendency analyzing means 16 during the metal temperature operation by the transmitting device 18 and the receiving device 17.

The pyrometer 19 is installed at one or a plurality of locations. In the case of installation at a plurality of locations, the temperature distribution in the blade height direction can be measured by individually changing the set angles and shifting the measurement points 23, as indicated by phantom lines in FIG.

FIG. 7 is an explanatory diagram of the function of the change tendency analyzing means 16 during the metal temperature operation.

This metal temperature change tendency analysis means 1 during operation
In step 6, while receiving the metal temperature measurement value signal from the metal temperature in-operation measuring means 15, the rotation monitor signal from the operating parameter measuring means 2 is received. At this time, by synchronizing the reception of both signals, the pyrometer 19 can synchronously measure only the signal value of one predetermined number of moving blades from among the plurality of moving blades 21. After the signal of the time trigger for starting the measurement (trigger at start-up) is generated, the time and the metal temperature measurement value are fetched, so that the relationship between the metal temperature and the time is stored in a data table as illustrated as a pattern 16a in FIG. It becomes something. As a result, the metal temperature of the moving blade 21 gradually rises after the start-up, and thereafter, enters a rated temperature constant operation. Then, at the time of the stop after the elapse of the predetermined time, a pattern 16a is obtained in which the metal temperature gradually decreases. Such a pattern can be obtained for all the moving blades 21 by synchronously measuring each moving blade.

Next, the function of the measured value-analysis value matching means 6 will be described with reference to FIG.

In the present embodiment, the temperature change pattern matching is performed on the change tendency data (pattern 16a) during the metal temperature operation of the moving blade 21 using the following values as indices. In other words, the measured value-analysis value matching means 6 uses, for example, FSNL at start-up (no-load rated speed) as a comparison element.
A temperature, a heating rate from start-up to rating (a heating process after FSNL), a rated time, a stopped FSNL temperature, a fire extinguishing speed, and a fire extinguishing temperature are set. Then, for these elements, the pattern 16a obtained by the change analysis means 16 during metal temperature operation and the analysis database system 5
Are compared with a plurality of types of registered operation patterns (patterns 1 to 4) stored in the storage device, and a matching one is selected from the patterns 1 to 4 (in the example of FIG. 8, pattern 1 is a pattern 16a). As a result, it is possible to know what kind of pattern the turbine operation at the present time is. Incidentally, in the registered operation pattern of the analysis database 25 shown in FIG.
Pattern 2 indicates an operation in which the temperature at the time of fire extinguishing gradually decreases, pattern 3 indicates an operation in which the rate of temperature rise to the rated value at startup is slow, and pattern 4 indicates a case in which the rated temperature is low.

Next, a description will be given of the function of correcting the temperature and evaluating the life of the pattern selected by the measured value-analysis value matching means 6 by the regular inspection data trend analysis means 8 and the analytical life prediction means 7 by the above-described method. .

The regular inspection data trend analysis means 8 analyzes the relationship between the measured values of the thermal fatigue, coup distortion, oxidation, etc. of the rotor blades 13 investigated at the time of regular inspection of the gas turbine, and the operating time or the number of times of starting and stopping. is there.

FIG. 9 shows non-destructive and destructive investigation items at the time of regular inspection of such a moving blade 13. here,
Regarding thermal fatigue, the maximum crack length and the crack length density (total crack length per measurement area) are measured nondestructively (a). The creep strain can be detected nondestructively by the blade size measurement when it is remarkable (b).
More precisely, a destructive investigation is performed and evaluated by microstructure observation (c). In (c), the structure of γ 'grains (NiAl ₂ ) shows an unused material and a material used for a long time, and the shape of the material used for a long time is distorted as shown (right side). Regarding oxidation, the amount of wall thinning is determined from dimensional measurement (d), and the progress of systematic oxidation in the depth direction is determined by cutting investigation (e).

FIG. 10 shows, as an example, a case where the temperature at which the rotor blade 13 is used is estimated by microstructure observation at the time of regular inspection, and the life is evaluated by the analytical life prediction means 7 reflecting the temperature estimation result. The function of is shown.

That is, as shown in FIG. 10, microstructure observation (measurement of γ ′ particle size d) is performed (f), and the previous particle size d is measured.
₀ using the temperature estimation equation from the precipitate size below about volume changes with (d 3 ^-d 3 _^0), the temperature T of the blade 13
Can be estimated (g).

[0064]

(Equation 3)

Based on the estimated temperature value T, FIG.
Are corrected as indicated by the broken lines in the temperature-time diagram and the temperature-strain diagram shown in FIG. From the temperature, stress and strain ranges corrected in this way, the life of oxidation and the life of creep are calculated as the shorter values using the life evaluation curves (i) and (j) of the material, respectively, as the time-dependent life ( k) Thermal fatigue is calculated using the life evaluation curve (1) of the material as the number-dependent life (m).

Next, the function of the regular inspection information / online measurement matching means 9 will be described with reference to FIG. The function of this regular inspection information-online measurement matching means 9 is as follows.
The analysis result of the regular inspection data tendency analyzing means 8 is compared with the damage change tendency by the analytical life prediction means 7, the deviation between them is calculated, and a correction method is determined based on the change tendency.

FIG. 11 shows a routine of the regular inspection information-online measurement matching process based on the crack measurement amount at the regular inspection (the same applies to the maximum crack length). Here, a crack length density for a small crack is shown as an example.

The data of the crack length density measured at the time of regular inspection is plotted against the number of times of starting and stopping, and an optimum approximate curve is created (n). On the other hand, based on the relationship between the crack length density and the number of times of loading for each strain range obtained experimentally, a curve corresponding to the strain range obtained by analyzing the actual machine members is selected (o).
The difference δ is obtained by comparing the two (p), and the following four patterns are considered based on the relationship between the difference δ and the number of starts (q).

(1) The deviation δ increases with the number of starts,
(2) Deviation δ decreases with the number of startups, (3) Deviation δ is stable within the allowable value, (4) Deviation δ is stable outside the allowable value. In the pattern (1), the conditions for damage evaluation are actual and Consider the difference, and change the distortion range so that the deviation does not change. In the pattern of (2), the condition of damage evaluation is different from the actual condition, but monitoring is continued because it is on the safe side.
When the deviation becomes excessive, the distortion range is corrected. Since the pattern (3) has no particular problem, the monitoring is continued without being changed. In the case of the pattern (4), the evaluation curve is translated in consideration of the difference in the initial value and the like. By making a change while monitoring (trend analysis matching processing r) in this way, it is possible to set conditions closer to actual conditions.

FIG. 12 shows a creep strain matching procedure based on microstructure observation at the time of regular inspection as another example of regular inspection information-on-line measurement matching.

Here, by measuring the particle size d of the γ ′ precipitate and the interparticle distance λ (s), the parameter is set to λ ²
The creep strain can be estimated as / d (t).
An optimum tendency curve is set based on the relationship between the creep strain measured in this way and the operation time (u), and is compared with the creep strain change curve (v) obtained by the analytical life prediction means 7 (trend analysis matching). To obtain the deviation δ (w). With respect to this deviation δ, (1) to (3) similar to those in the case of FIG.
The processing of (4) is performed (x), and thereby the correction method is determined.

FIG. 13 shows a matching procedure based on oxidation depth measurement at the time of regular inspection as another example of regular inspection information-on-line measurement matching.

Here, the relationship between the oxidation depth and the time is obtained by plotting the oxidation depth obtained by measuring the wall thickness or observing the cross-sectional microstructure against the operation time (y1).
On the other hand, using the repetitive oxidation characteristics experimentally obtained under various conditions, an oxidation depth change curve corresponding to the temperature and holding time conditions obtained by the analytical life prediction means 7 is selected (y2).
The two types of oxidation depth change curves are compared to determine a deviation δ (y3), and the processes (1) to (4) are performed in the same manner as described above to determine a correction method.

Next, referring to FIG.
The function of will be described. This remaining life determining means 10
The number-of-times dependent life consumption and the time-dependent life consumption obtained as described above are applied to the allowable start / stop times-permissible operation time diagram according to the material usage conditions until the limit value is reached. Is to predict the time of

FIG. 14 shows a method of creating a judgment diagram representing the relationship between the allowable number of activations and the allowable operation time applied in the remaining life judgment means 10. Since the allowable number of starts is governed by the thermal fatigue life, and the compression is maintained at the rated time, it is determined by the compression retention fatigue test whose waveform is shown in FIG. In addition, the time-dependent life, which represents the allowable operation time, is dominated by creep and oxidation, so the shorter one of these is adopted. If the time dependency and the frequency dependency overlap, the time dependency and the number dependency are determined by creep fatigue test data of tensile retention. Let these lower limit envelopes be allowable diagrams.

FIG. 15 shows the function of the remaining life determining means 10. For the number-dependent life, the current position is determined on a damage diagram using the crack length density as an index. As for the time-dependent life, both the creep strain and the oxidation depth are evaluated, and the shorter life is adopted. The number of times and the time of both are applied on the line of the allowable operation time / allowable number of startups, and the remaining life is determined as a combination of the time and the number of times. If a future operation pattern (ratio between the number of times and time) is given, follow it. According to this result, the maintenance management setting means 1
In step 1, the setting of the inspection, repair or replacement timing is determined by comparing the remaining life with the period until the next regular inspection and the next regular inspection. For example, (1) when the remaining life is shorter than the period until the next regular inspection, the operation is restricted, and repair or part replacement is performed at the next regular inspection. (2) If the remaining life is shorter than the period until the next regular inspection, an inspection is performed at the next regular inspection. Further, (3) when the remaining life is longer than the period until the next field inspection,
It can be determined that the inspection at the next regular inspection can be omitted.

FIG. 16 shows the relationship between the period v of the test waveform in the TMF test (thermo-mechanical fatigue test) and the LCF test (low-cycle fatigue test at a constant temperature) and the failure of the retained waveform with respect to the number of repetitions N _f0 without failure. the ratio of the repetition number _{N f (N f / N f0} : life reduction rate) shows the relationship. Although there is some variation, both the TMF test and the LCF test show almost the same tendency in that the life reduction rate with the elapse of the holding time shows a constant value with the elapse of the holding time.
And N _f / N _f0 satisfies the following equation.

[0078]

(Equation 4)

According to the equation (2), the thermal fatigue life shows a constant value as the holding time elapses, and in FIG.
The thermal fatigue life shows a constant value at the compression holding time of time.

In this embodiment, the allowable number of activations can be determined based on the above equation (2).

As described above, in the present embodiment, the life analysis accuracy is improved by the online measurement amount and the regular inspection information, and the diagnosis and the maintenance management judgment are performed in real time in consideration of the deterioration / damage caused by the aging of the equipment members. Can be performed.

Second Embodiment (FIG. 17) (corresponding to Claims 11 to 12) This embodiment is applied to a gas turbine blade or the like provided with a thermal barrier coating (TBC), and the TBC is peeled off. The life diagnosis is performed by paying attention to the rise in the blade surface temperature in such a case.

FIG. 17 is a block diagram of the online life diagnosis system according to the present embodiment. As shown in FIG. 17, the overall configuration of the system of this embodiment is substantially the same as that of the first embodiment, but the in-operation measuring means 1 is specifically a TBC temperature in-operation measuring means 27, The TBC surface temperature at the target site is measured by placing the sensor opposite the component.
The operating value change trend analyzing means 4 is a TBC temperature operating change trend analyzing means 28, which analyzes the relationship between the TBC temperature measured value and the operating time or the number of times of starting and stopping to analyze the TBC temperature.
Detect peeling. The structure of the temperature measuring means is the same as in FIGS.

FIG. 18 is a diagram showing functions of the present embodiment. The TBC temperature in-operation measuring means 27 monitors the surface temperature with respect to time, and senses a local temperature rise accompanying the separation of the TBC (a1). Since the temperature, stress and strain conditions are changed by the peeling, the evaluation curves of thermal fatigue, oxidation and creep used in the analytical life prediction means 8 are also changed according to the changed use conditions.

For the number-dependent life (a2), the fatigue life is evaluated using the crack length density after peeling as an index. Similarly, for the time-dependent type life (a3), the creep strain and the oxidation depth are evaluated, and the shorter operation time is taken. Based on these evaluations, an allowable number of startups-allowable operation time diagram (a
The remaining life is determined using 4). Based on this remaining life value,
Inspection / repair / replacement time is set by the maintenance management setting means 11, and the TBC peeling life is used for operation restriction and recoating time judgment (a5).

The specific inspection / repair / replacement time settings are as follows: (1) If the TBC peeling life is shorter than the period until the next regular inspection, the operation is restricted and recoating is performed at the next regular inspection. (2) If the remaining life is shorter than the period until the next regular inspection, the operation will be restricted, and repair and replacement will be performed at the next regular inspection. (3) If the remaining life is shorter than the period of the regular inspection one after another, perform the next inspection. (4) If the remaining life is longer than the period until the regular inspection one after another, it is determined that the next inspection can be omitted.

As described above, in the present embodiment, TB
Since C peeling is monitored online, and the remaining life after TBC peeling is analytically predicted in consideration of regular inspection information, accurate diagnosis and maintenance management judgment can be performed in real time.

The third embodiment (FIGS. 19 to 21)
Claim 13 to 15 correspond) This embodiment is applied to oxide thinning and creep deformation of the rotor blade tip portion.

FIG. 19 is a block diagram of the online life diagnosis system according to the present embodiment. The in-operation measuring means 1 is, specifically, the in-operation measuring means 29 for measuring a change in the position of the blade tip, and the in-operation measured value change tendency analyzing means 4.
Is a change tendency analysis means 30 during the gap operation. The gap temperature operation change tendency analysis means 30 analyzes the relationship between the oxidation thinning or creep deformation of the blade tip and the operation time or the number of times of starting and stopping from the change in the gap to detect a sign of abnormality.

FIG. 20 is a diagram showing a state in which the measuring means 29 during the gap operation is attached to the gas turbine. A laser distance measurement sensor 31 for measuring a distance in a non-contact manner is attached to the casing 20 by an optical path protection cylinder 32, and a measurement signal is taken out of the casing 20. The tip of the measuring means 29 during the gap operation is attached to the shroud segment 34, and a high temperature resistant protective lens 33 is attached. The laser light is rotationally synchronized, and monitors the distance to a fixed portion of the bucket tip 35.

FIG. 21 is a diagram showing the function of the measured value-analysis value matching means 6. The tip oxidation thinning amount estimated from the position of the bucket tip is recorded as a change tendency in relation to the operation time (b1). On the other hand, from the oxidation thinning test data (experiment database) (b2) at various temperatures T of the material, an oxidation thinning curve (for example, T ₁ ) with respect to the temperature of the blade tip 35 applied by the analytical life prediction means 7 is obtained. Then, a deviation δ from the online measurement value is determined (b3). This deviation δ
Is corrected in accordance with the judgment items of the items (1) to (4) similar to those described above (b4). That is, (1) δ
Is increasing, the temperature of the analysis curve is corrected. (2) When δ is gradually decreasing, monitoring is continued. (3) When δ tends to be stable within the allowable value, the analysis curve is not changed. (4) When δ is out of the tolerance and tends to be stable, the analysis curve is translated.

The above procedure can be carried out in the same manner by replacing the amount of oxidation thinning with the amount of blade elongation due to creep.

As described above, in the present embodiment, the life analysis accuracy is improved by the online measurement amount and the regular inspection information, and the diagnosis and the maintenance management judgment are performed in real time in consideration of the deterioration / damage due to the aging of the equipment members. Can be performed.

Fourth Embodiment (FIGS. 22 to 28)
16 to 18) This embodiment is directed to a stationary blade, in which an optical gap measuring means is provided at a crack initiation part, a change in a crack dimension is measured, and an operation time of a crack length or the number of start / stop times is measured. And the trend toward
The deviation of the change amount of the crack propagation amount with respect to the operation time or the number of times of starting and stopping is compared, and a method of correcting the life evaluation condition is determined based on the change tendency of the deviation and used for the life evaluation.

FIG. 22 shows a first stage stationary blade 21 of a gas turbine.
FIG. The high-temperature gas causes oxidation thinning 21a and material deterioration 21b, and cracks 21c occur due to repeated thermal stress. In the case of a stationary blade, the crack life is also included in the life to allow the crack. In addition,
In the second and third stage stationary blades, sag deformation due to creep becomes a problem.

FIG. 23 is a block diagram of the online life diagnosis system according to the present embodiment. This embodiment is applied to a component such as the first stage stationary blade where thermal fatigue crack growth is particularly problematic. The in-operation measuring means 1 is specifically a crack propagation in-operation measuring means 36, and the in-operation measured value change tendency analyzing means 4 is a crack propagation in-operation change tendency analyzing means 3.
7

FIG. 24 is a view showing a state in which the measuring means 36 during crack growth operation is attached to the gas turbine. The in-crack extension operation measuring means 36 has a CC for identifying a crack image.
An optical sensor 33 such as D or an infrared sensor is used. The optical sensor 38 is connected to the casing 2 by the protection cylinder 39.
0, and the measurement signal is taken out of the casing 20. A protective lens 40 is attached to the tip. The focus of the optical sensor 38 is focused on the crack initiation site of the stationary blade 21. The maximum crack can be monitored by, for example, changing the blade position after the crack is confirmed by inspection.

FIG. 25 is a diagram showing the function of the measured value-analysis value matching means 6. The measured maximum crack length is
The change tendency is recorded in relation to the number of activations (c1). On the other hand, from the fatigue crack initiation growth test data in various strain ranges of the material, the maximum crack growth evaluation curve corresponding to the strain range of the stationary blade 21 applied by the analytical life prediction means 7 is selected (c).
2), a deviation δ from the online measurement value is obtained (c3).
Based on the tendency of the deviation δ to change with time, correction is performed in accordance with the determination items (1) to (4) similar to those in the third embodiment (c4).

FIG. 26 is a diagram showing a function of the regular inspection information-online measurement matching means 9 relating to temperature correction.
Here, regular inspection information-online measurement matching means 9
In the above, the temperature change history of each part of the member is corrected using the metal temperature estimated value based on the measurement of the oxidation depth of the member, and used for the life evaluation. That is, at the time of the regular inspection, the oxidation depth dox is measured by the dimension measurement or the structure inspection (d1) (d2).
Oxidation depth and time calculated experimentally using this dox
From the relationship of the temperature, the temperature with respect to the operation time is estimated (d3). This estimated temperature is applied to the correction of the temperature-time change diagram and the temperature-strain change diagram used by the analytical life prediction means 7 (d4). The temperature corrected in this way,
Using the stress and strain ranges, oxidation life evaluation (d5), creep life evaluation (d6), life evaluation of thermal fatigue crack growth (d
Repeat step 7).

FIG. 27 is a diagram showing the function of the regular inspection information-online measurement matching means 9 relating to the crack growth curve correction. Here, in the regular inspection information-on-line measurement matching means 9, the tendency of the crack length to change with respect to the operation time or the number of times of starting hand stoppage, and the operation time or the number of times of starting and stopping of the crack propagation amount obtained by the analytical life prediction means 7. , And a method of correcting the life evaluation condition is determined from the change tendency of the deviation. That is, the crack length is measured at the time of regular inspection. Among them, the change tendency of the maximum crack length is approximated by an optimum curve with respect to the number of activations (e1). On the other hand, a curve corresponding to the strain range used by the analytical life prediction means 7 is selected from the relationship between the strain range obtained in the laboratory and the maximum crack growth curve (e2). The crack growth curve obtained by the trend analysis at the time of regular inspection is compared with the crack growth curve used in the analysis (e3), and the determination criteria of (1) to (4) are determined based on δ, as in the case of FIG. Then, the crack growth curve is corrected (e4).

FIG. 28 is a diagram showing the function of the remaining life determining means 10. The frequency-dependent life (f1) is the maximum number of times of crack propagation, and the time-dependent life (f2) is both the creep strain and the oxidation depth. These are evaluated and the shorter life is adopted. . The number and time of both are applied on the line of allowable operation time and allowable number of startups (f3), and the remaining life is determined as a combination of time and number of times. When the ratio of the number of operation patterns in the future and the time) is given, it is followed. Based on the result, the maintenance / management setting unit 11 checks / repairs /
The setting of the replacement time is determined by comparing the remaining life with the period until the next regular inspection and the next regular inspection (f4).

As described above, in the present embodiment, the life analysis accuracy is improved by the online measurement amount and the regular inspection information, and the diagnosis and the maintenance management judgment are performed in real time in consideration of the deterioration / damage information due to the aging of the equipment members. Can be performed.

Fifth Embodiment (FIGS. 29 to 31) (corresponding to claim 19) This embodiment is applied to a part in which oxidation during operation is particularly problematic, and is exposed to the same surface as the member surface. By measuring the change in electrical resistance of the oxidation monitor material arranged to maintain insulation from the members, the amount of oxidized thinning is measured, and the change tendency of the oxidized thinned amount with respect to the operation time or the number of times of starting and stopping is analyzed. The deviation of the change tendency of the oxidation thinning amount with respect to the operating time or the number of times of starting and stopping obtained by the dynamic life prediction means is compared, and a correction method of the life evaluation condition is determined from the change tendency of the deviation to be used for the life evaluation.

FIG. 29 is a block diagram of the online life diagnosis system according to the present embodiment. The in-operation measuring means 1 is specifically an in-oxidation thinning amount in-operation measuring means 41,
The in-operation measured value change tendency analysis means 4 is an in-oxidation thinning amount in-operation change tendency analysis means 42.

FIG. 30 shows the measuring means 41 during the operation of oxidized thinning.
FIG. 9 is a diagram showing an example in which is applied to a first stage stationary blade. The measuring means 41 during the oxidation thinning amount operation is used as the oxidation monitor rod 43.
It has the same material as the stationary blade base material,
Are insulated from each other by an insulating protection tube 44. A mounting jig 44 'is provided in a portion fitted into the stationary blade sidewall portion 45. When the tip is oxidized during operation, utilizing the fact that the electrical resistance changes as the wall thickness (reduction in length) or oxidation progresses,
It electrically measures the oxidation depth.

FIG. 31 is a diagram showing the function of the measured value-analysis value matching means 6. The measured oxidation thinning amount is recorded as a change tendency in relation to the operation time (g1). on the other hand,
From the test data of the amount of oxidized thinning at each temperature of the material, an oxidized thinning amount evaluation curve corresponding to the temperature of the stationary blade applied by the analytical life prediction means 7 is selected (g2), and the deviation δ from the online measurement value is selected. (G3). From the time change tendency of the deviation δ, correction is performed according to the same judgment items (1) to (4) as described above (g4).

As described above, in the present embodiment, the life analysis accuracy is improved by the online measurement amount and the regular inspection information, and the diagnosis and the maintenance management judgment are performed in real time in consideration of the deterioration / damage information due to the aging of the equipment members. Can be performed.

Sixth Embodiment (FIGS. 32 to 35) (corresponding to claim 20) This embodiment is applied to a component, such as a gas turbine second or third stage stationary blade, which is particularly problematic in the formation of a sag during operation. , Using an optical displacement meter arranged to measure the amount of blade sag against the wing, the tendency of the amount of blade sag to change over the operation time or the number of start / stop, And compare the deviation of the change tendency with respect to
The method of correcting the life evaluation condition is determined from the change tendency of the deviation.

FIG. 32 is a block diagram of the online life diagnosis system according to the present embodiment. The in-operation measuring means 1 is specifically a wing deformation operation measuring means 46, and the in-operation measured value change tendency analyzing means 4 is a wing deformation operation change tendency analyzing means 47.

FIG. 33 is a diagram showing an example in which the wing deformation operation measuring means 46 is applied to the second stage stationary blade 51. The wing deformation operation measuring means 46 has a laser displacement sensor 48, an optical path protection cylinder 49, and a protection lens 50.
The stationary blade deformation operation measuring unit 46 is configured to perform measurement from outside the blade, and focuses on the stationary blade front edge 52 from the inlet side of the stationary blade 51. When measuring the inner surface of the hollow wing, it may be installed so as to focus on the inner surface 53 of the leading edge. In addition, the accuracy can be improved by installing a plurality of sensors.

FIG. 34 is a diagram showing the function of the measured value-analysis value matching means 6. As for the measured amount of blade fall, a change tendency is recorded in relation to the operation time (h
1). On the other hand, from the creep deformation test data at each temperature of the material, a blade fall amount evaluation curve corresponding to the temperature and stress of the stationary blade applied by the analytical life prediction means 7 is selected (h2), and the deviation from the online measurement value is selected. δ is obtained (h3). From the time change tendency of the deviation δ, as described above, (1) to (4)
Correction is performed according to the judgment items in the item (h4).

FIG. 35 is a diagram showing the function of the remaining life determining means 10. The number-dependent life (i1) is the number of times the maximum crack length has propagated. The time-dependent life (i2) is the blade fall amount and the oxidation depth, and both of them are evaluated and the shorter life is adopted. The number and time of both are applied on the line of allowable operation time and allowable number of startups (i3), and the remaining life is determined as a combination of time and number of times. If a future operation pattern (ratio between the number of times and time) is given, follow it. Based on this result, the maintenance management setting means 11 determines the setting of the inspection / repair / replacement time by comparing the remaining life with the period until the next regular inspection and the next regular inspection (i4).

As described above, in the present embodiment, the life analysis accuracy is improved by the online measurement amount and the regular inspection information, and the diagnosis and the maintenance management judgment are performed in real time in consideration of the deterioration / damage due to the aging of the equipment members. Can be performed.

Seventh Embodiment (FIGS. 36 to 42) (corresponding to claim 21) This embodiment is applied to a part such as a shroud segment in which repeated deformation and oxidation during operation are problematic.
Compare the tendency of the change of the deformation amount of the member with respect to the operation time or the number of start / stop times and the deviation of the change amount of the deformation amount of the member with respect to the operation time or the number of start / stop times, and correct the life evaluation condition from the change tendency of the life to evaluate the life. Used for

FIG. 36 is a block diagram of the online life diagnosis system according to the present embodiment. The in-operation measuring means 1 is specifically a deformed operation measuring means 54, and the in-operation measured value change tendency analyzing means 4 is a deformed operation change tendency analyzing means 55.

FIG. 37 is a diagram showing the state of attachment of the measuring means 54 during deformation operation to the gas turbine. Three in-operation measuring means 54 are installed on the inner surface of the shroud segment 34. A displacement detection rod 56 provided in each displacement operation measuring means 54 is provided with a guide cylinder 57.
It is slid inside and is pressed with a constant force by a spring 58. A displacement detection core 59 and a displacement detection coil 60 are attached to the upper end of the displacement detection rod 56 so as to extract a displacement signal outside the casing 20. As a method of detecting the displacement, as shown in FIG. 38, a capacitive strain gauge 61 and a lead wire 62 can be used together with a protective tube 63.

FIG. 39 is a diagram showing the function of the measured value-analysis value matching means 6. The relationship (j1) between the amount of deflection and the operation time is obtained by converting the amount of deflection into an amount of distortion (j2), and comparing it with the strain-temperature pattern used by the analytical life prediction means 7 (j3). Will be applied. The thermal fatigue life is calculated based on the corrected strain range (j4), the creep life is calculated based on the corrected stress and temperature (j5), and the oxidation amount is calculated based on the temperature (j6).

FIG. 40 shows the measuring means 41 during the operation of oxidized thinning.
FIG. 9 is a diagram showing an example in which is applied to a shroud segment 34. The in-oxidation thinning amount in-operation measuring means 41 has an oxidation monitor rod 42, and the oxidation monitor rod 42 is formed using the same material as the segment base material. Oxidation monitor rod 42
The segment and the segment are insulated by an insulating protection tube 43. A mounting jig 44 is provided at the tip. When the tip is oxidized during operation, the thickness of the wall is reduced (reduction in length) or oxidation progresses, and the electrical resistance changes accordingly, and the oxidation depth is electrically measured.

FIG. 41 is a diagram showing the function of the measured value-analysis value matching means 6. The measured oxidation thinning amount is recorded as a change tendency in relation to the operation time (k1). on the other hand,
From the experimental database of the amount of oxidized thinning at each temperature of the material, an oxidized thinning amount evaluation curve corresponding to the temperature of the stationary blade applied by the analytical life prediction means 7 is selected (k2), and the deviation δ from the online measurement value is selected. (K3). From the time change tendency of the deviation δ, correction is performed in accordance with the same judgment items (1) to (4) as described above (k4).

FIG. 42 shows the function of the remaining life determining means 10. The number-dependent life (l1) is the maximum number of crack propagation times, and the time-dependent life (l2) evaluates both creep strain and oxidation depth, and adopts the shorter life. The number and time of both are applied on the line of allowable operation time and allowable number of startups (13), and the remaining life is determined as a combination of time and number of times. If a future operation pattern (ratio between the number of times and time) is given, follow it. Based on the result, the maintenance management setting means 11 determines the setting of the inspection / repair / replacement time by comparing the remaining life with the period until the next regular inspection and the next regular inspection (14).

As described above, in the present embodiment, the life analysis accuracy is improved by the online measurement amount and the regular inspection information, and the diagnosis and the maintenance management judgment are performed in real time in consideration of the deterioration / damage due to the aging of the equipment members. Can be performed.

Eighth Embodiment (FIGS. 43 to 47) ( Embodiment 22) The present embodiment is applied to a part such as a combustor in which displacement occurring during operation is a problem, and the position and posture of the part. Estimate the amount of wear thinning of the mounting part, etc. from the change tendency of the (slope) with respect to the operation time or the number of times of start and stop, compare the deviation of the change in the calculated value of the wear thinning amount with respect to the operation time or the number of times of start and stop, The correction method of the life evaluation condition is corrected from the change tendency of the life and used for the life evaluation.

FIG. 43 is a block diagram of an online life diagnosis system according to the eighth embodiment of the present invention. The in-operation measurement means 1 is specifically a displacement operation measurement means 64, and the in-operation measurement value change tendency analysis means 4 is a displacement operation change tendency analysis means 65.

FIG. 44 is a view showing the state of attachment of the measuring means 64 during displacement operation to the gas turbine combustor. The combustor liner 67 and the transition piece 68 are supported via a support 70.
And a plurality of displacement-measuring means 64 are provided for the transition piece 68. During the displacement operation, the displacement detection rod 56 of the measuring means 64 is pressed with a constant force by a spring, and a displacement signal is taken out of the casing 20.

FIGS. 45 (A) and (B) show the combustion liner 6.
FIG. 7 is a diagram showing the state of attachment of the displacement operation measurement means 64 to the position 7. The displacement measuring means 64 is provided at four locations with respect to the combustor liner 67 during displacement operation, whereby the deviation and inclination of the position in the left, right, up and down directions can be measured. Then, by storing the displacement output as a trend curve by each displacement operation measuring means 64, the displacement can be monitored as shown in FIG.

FIG. 46 is a diagram showing the function of the measured value-analysis value matching means 6. As described above, the relationship between the sensor displacement signal (m1) measured online and the operation time (m
2) is converted into a wear loss, and a deviation δ between the analysis database (m3) and the material wear loss characteristic database (m4) used in the analytical life prediction means 7 is obtained (m
5). Based on the time change tendency of the deviation δ, the correction is performed in accordance with the same judgment items (1) to (4) as described above (m
6).

FIG. 47 is a diagram showing the function of the remaining life determining means 10. The number-dependent life (n1) is the crack length density or the maximum number of crack propagation times, and the time-dependent life (n1)
In 2), both the creep strain and the wear loss are evaluated, and the shorter life is adopted. The number and time of both are applied on the line of allowable operation time and allowable number of starts (n3), and the remaining life is determined as a combination of time and number of times. If a future operation pattern (ratio of times and time) is given, follow it. Based on the result, the maintenance / management setting unit 11 determines the setting of the inspection / repair / replacement time by comparing the remaining life with the period until the next regular inspection and the next regular inspection.

As described above, in the present embodiment, the life analysis accuracy is improved by the online measurement amount and the regular inspection information, and the diagnosis and the maintenance management judgment are performed in real time in consideration of information on deterioration and damage due to the aging of the equipment members. Can be performed.

In the above embodiments, the gas turbine has been described as an example, but the present invention can be widely applied to other prime movers or various heating devices.

Ninth Embodiment (FIGS. 48 to 51) (corresponding to claim 23) This embodiment is applied to a component such as a rotor, which has a problem in deflection during operation, and which has a deflection in the center of the rotor. The tendency to change with respect to operating time or number of starts
The deviation of the stress rotor deflection estimation value from the change tendency with respect to the operation time or the number of times of starting and stopping is compared, and a correction method of the life evaluation condition is determined from the change tendency of the deviation to be used for the life evaluation.

FIG. 48 is a block diagram of the online life diagnosis system according to the present embodiment. The in-operation measuring means 1 is, specifically, the in-rotor flexure in-operation measuring means 71, and the in-operation measured value change tendency analyzing means 4 is a in-rotor flexure operating change tendency analyzing means 72. Here, it is evaluated that the rotor deflection increases due to the relaxation of the tightening bolt.

FIG. 49 shows the measuring means 7 during the rotor deflection operation.
FIG. 3 is a diagram showing a state of attachment to a gas turbine rotor No. 1; The turbine wheel 75 is connected by a tightening bolt 74, and three rotor deflection in-operation measuring means 71 are provided for a turbine shaft 73 connecting the compressor and the turbine. The displacement detection rod 56 is pressed with a constant force by a spring, and a displacement signal is taken out of the casing 20.

FIG. 50 is a diagram showing the function of the measured value-analysis value matching means 6. Relationship between the amount of deflection measured online and the operating time (o1), and analytical life prediction means 7
The deflection amount is calculated based on the bolt relaxation characteristics (o2) with respect to the temperature and stress used in (3), and the deviation δ between them is determined (o4). Based on the tendency of the deviation δ to change with time, correction is performed in accordance with the same determination items (1) to (4) as described above (o5).

FIG. 51 is a diagram showing the function of the remaining life determining means 10. The number-dependent life (p1) is the crack length density or the number of occurrences of the maximum crack, and the time-dependent life (p
2) is the amount of deflection. The number and time of both are applied on the line of allowable operation time and allowable number of starts (p3), and the remaining life is determined as a combination of time and number of times. If a future operation pattern (ratio of times and time) is given, follow it. Based on this result, the maintenance management setting means 11 determines the setting of the inspection / repair / replacement time by comparing the remaining life with the period until the next regular inspection and the next regular inspection (p4).

As described above, in the present embodiment, the life analysis accuracy is improved by the online measurement amount and the periodic inspection information, and the diagnosis and the maintenance management judgment are performed in real time in consideration of the deterioration / damage due to the aging of the equipment members. Can be performed.

[0136]

According to the present invention, the accuracy of life analysis is improved by the on-line measurement amount and regular inspection information, and accurate diagnosis and maintenance management judgment are made in real time, taking into account deterioration / damage caused by aging of equipment members. Therefore, parts can be used for a long period of time, and scheduled operation and maintenance management can be realized.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram showing a basic concept of an online life diagnosis system according to the present invention.

FIG. 2 is a system configuration diagram showing the first embodiment of the present invention.

FIG. 3 is a diagram showing a damage mode of the gas turbine blade in the first embodiment.

FIG. 4 is an explanatory view of a damaged form of a gas turbine blade provided with a thermal barrier coating to which the first embodiment is applied.

FIG. 5 is an explanatory diagram showing an installation state of a measuring unit during metal temperature operation in the first embodiment.

FIG. 6 is an explanatory diagram showing in detail a state of installation of a measuring unit during metal temperature operation in the first embodiment.

FIG. 7 is a functional explanatory view of a change tendency analysis means during metal temperature operation in the first embodiment.

FIG. 8 is a functional explanatory diagram of a measurement value-analysis value matching unit in the first embodiment.

FIG. 9 is an explanatory diagram of a blade investigation content at the time of regular inspection in the first embodiment.

FIG. 10 is a functional explanatory diagram when the regular inspection information-on-line measurement matching means in the first embodiment is used for temperature correction.

FIG. 11 is a functional explanatory diagram when the regular inspection information-on-line measurement matching means in the first embodiment is used for correcting a crack length density change tendency.

FIG. 12 is a functional explanatory diagram in the case where the regular inspection information-online measurement matching means in the first embodiment is used for correcting a change tendency of creep distortion.

FIG. 13 is a functional explanatory diagram when the regular inspection information-on-line measurement matching means in the first embodiment is used for correcting a change tendency of the oxidation depth.

FIG. 14 is an explanatory diagram showing a method of creating an allowable line diagram used for the remaining life determining means in the first embodiment.

FIG. 15 is a functional explanatory diagram of a remaining life determining unit in the first embodiment.

FIG. 16 is a diagram showing a relationship between a life reduction rate and an allowable number of starts in the first embodiment.

FIG. 17 is a system configuration diagram in which an online life diagnosis system according to a second embodiment of the present invention is applied to a moving blade having a thermal barrier coating.

FIG. 18 is a functional explanatory diagram of a remaining life determining unit in the second embodiment.

FIG. 19 is a system configuration diagram in which a clearance measurement of a moving blade is applied to an online life diagnosis system according to a third embodiment of the present invention.

FIG. 20 is an explanatory diagram showing an installation state of a measuring unit during gap operation in the third embodiment.

FIG. 21 is a functional explanatory diagram of a measured value-analysis value matching unit in the third embodiment.

FIG. 22 is an explanatory diagram of a damage mode of a gas turbine vane to which the fourth embodiment of the present invention is applied.

FIG. 23 is a system configuration diagram in which the online life diagnosis system according to the fourth embodiment is applied to crack propagation of a stationary blade.

FIG. 24 is an explanatory view showing an installation state of a measuring means during crack propagation operation of a stationary blade in the fourth embodiment.

FIG. 25 is a functional explanatory diagram of a measured value-analysis value matching unit for the maximum crack length change tendency of the stationary blade in the fourth embodiment.

FIG. 26 is a functional explanatory diagram when the regular inspection information-online measurement matching means in the fourth embodiment is used for temperature correction of a stationary blade.

FIG. 27 is a functional explanatory diagram when the regular inspection information-online measurement matching means in the fourth embodiment is used for correcting the maximum crack length change tendency of the stationary blade.

FIG. 28 is an explanatory diagram of functions of a remaining life determining unit in the fourth embodiment.

FIG. 29 is a system configuration diagram in which the online life diagnosis system according to the fifth embodiment of the present invention is applied to oxidation thinning of a stationary blade.

FIG. 30 is an explanatory view showing an installation state of a measuring means during the operation of oxidizing thinning of the stationary blade in the fifth embodiment.

FIG. 31 is a functional explanatory diagram of a measured value-analysis value matching unit for the oxidation blade thinning amount change tendency of the stationary blade in the fifth embodiment.

FIG. 32 is a system configuration diagram in which an online life diagnosis system according to a sixth embodiment of the present invention is applied to vane deformation of a stationary vane.

FIG. 33 is an explanatory view showing an installation state of a measuring means during a blade deformation operation of a stationary blade in the sixth embodiment.

FIG. 34 is a functional explanatory diagram of a measured value-analysis value matching unit for a blade inclination amount change tendency of the stationary blade according to the sixth embodiment.

FIG. 35 is an explanatory diagram of functions of a remaining life determining unit in the sixth embodiment.

FIG. 36 is a system configuration diagram in which the online life diagnosis system according to the seventh embodiment of the present invention is applied to deformation of a shroud segment.

FIG. 37 is an explanatory view showing an installation state of a measuring unit during the deformation operation of the shroud segment in the seventh embodiment.

FIG. 38 is an explanatory view showing another installation state of the measuring means during the deformation operation of the shroud segment in the seventh embodiment.

FIG. 39 is a functional explanatory diagram of a measured value-analysis value matching unit for a shroud segment deformation tendency in the seventh embodiment.

FIG. 40 is an explanatory view showing another installation state of the measuring means during the operation of oxidizing thinning of the shroud segment in the seventh embodiment.

FIG. 41 is an explanatory view of the function of a measured value-analysis value matching means for the oxidation thinning tendency of the shroud segment in the seventh embodiment.

FIG. 42 is a functional explanatory view of a remaining life determining means in the seventh embodiment.

FIG. 43 is a system configuration diagram in which an online life diagnosis system according to an eighth embodiment of the present invention is applied to wear displacement of a combustor.

FIG. 44 is an explanatory diagram showing an installation state of a measuring unit during displacement operation of a combustor in the eighth embodiment.

FIGS. 45 (A) and (B) are views showing the installation state of the measuring means during displacement operation of the combustor in the eighth embodiment.
(C) is an explanatory view showing the function.

FIG. 46 is a functional explanatory view of a measured value-analysis value matching unit for the change tendency of the displacement of the combustor and the wear loss in the eighth embodiment.

FIG. 47 is an explanatory diagram of functions of a remaining life determining unit in the eighth embodiment.

FIG. 48 is a system configuration diagram in which an online life diagnosis system according to a ninth embodiment of the present invention is applied to deformation of a rotor.

FIG. 49 is an explanatory view showing an installation state of a rotor flexure operation-measuring means in the ninth embodiment.

FIG. 50 is a functional explanatory diagram of a measured value-analysis value matching unit for the change tendency of the rotor deflection in the ninth embodiment.

FIG. 51 is an explanatory view of the function of a remaining life determining means in the ninth embodiment.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 operating means 2 operating parameter measuring means 3 communication means 4 operating value trend analysis means 5 analysis database system 6 measured value-analysis value matching means 7 analytical life expectancy means 8 regular inspection data trend analysis system 9 regular inspection information -On-line measurement matching means 10 Remaining life judgment means 11 Maintenance management setting means 12 Display means 15 Metal temperature operation measurement means 16 Metal temperature operation change tendency analysis means 17 Receiving device 18 Transmitting device 21 Pyrometer 24 Sensor unit 25 Protection cylinder 26 Protection Lens 27 TBC temperature operation measurement means 28 TBC temperature operation trend analysis means 29 Gap operation measurement means 30 Gap operation change tendency analysis means 31 Laser distance measurement sensor 32 Optical path protection cylinder 33 Protective lens 36 Crack propagation operation measurement Means 37 Crack propagation tendency during operation Analyzing means 38 Optical sensor 39 Protective cylinder 40 Protective lens 41 Oxidation thinning amount during operation measuring means 42 Oxidation thinning amount during operating trend analysis means 43 Oxidation monitor rod 44 Insulation protection cylinder 46 Blade deformation operating tendency analysis means 47 Operating trend analysis means 48 Laser displacement sensor 49 Optical path protection cylinder 50 Protective lens 54 Deformation operation measurement means 55 Deformation operation trend analysis means 56 Displacement detection rod 57 Guide cylinder 58 Spring 59 Displacement detection core 60 Displacement detection coil 61 Capacitive type Strain gauge 64 Displacement operation measurement means 65 Displacement operation tendency analysis means 66 Displacement sensor 67 Rotor deflection operation measurement means 68 Rotor deflection operation tendency analysis means 70 Support

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazuhiro Saito 2--4, Suehirocho, Tsurumi-ku, Yokohama-shi, Kanagawa Prefecture Inside the Toshiba Keihin Works Co., Ltd. (72) Hiroki Yamamoto 2--4, Suehirocho, Tsurumi-ku, Yokohama-shi, Kanagawa Address Toshiba Keihin Works Co., Ltd. (72) Inventor Takao Inukai 2-4 Suehirocho, Tsurumi-ku, Yokohama-shi, Kanagawa Prefecture In-house Keio Works Co., Ltd. (72) Inventor Hiroaki Yoshioka 2-chome, Suehirocho, Tsurumi-ku, Yokohama, Kanagawa Address Toshiba Keihin Works Co., Ltd. (72) Inventor Junji Ishii 2-4 Suehirocho, Tsurumi-ku, Yokohama-shi, Kanagawa Prefecture Toshiba Keihin Works Co., Ltd. (72) Inventor Takuhisa Kondo 1-1-1 Shibaura, Minato-ku, Tokyo In the head office of Toshiba Corporation (72) Inventor Enyan 2-4, Suehirocho, Tsurumi-ku, Yokohama-shi, Kanagawa Company Toshiba Keihin workplace

Claims (23)

[Claims] 1. During the operation of a device to be subjected to a service life diagnosis,
An event that causes damage to the components of the device and the operating parameters of the device in which the event occurs are measured and converted into numerical data, and based on these numerical data, the event during the current operation is performed. The change tendency of the elephant is obtained, the obtained change tendency is compared with a plurality of types of operation patterns analyzed in advance corresponding to the assumed operation conditions of the device, and a matching pattern is selected. The on-line measurement value along with is corrected by the measurement value at the time of the regular inspection analyzed based on the actual data at the time of the regular inspection, thereby performing the damage evaluation at the present time, and furthermore, based on the actual data obtained at the time of the regular inspection or the experiment. The deviation pattern between the two patterns is obtained by comparing the analysis pattern of the damage tendency based on the above and the measurement value pattern obtained by the damage evaluation at the present time, and based on the deviation, the current pattern is determined. Corrected, online lifting system, characterized in that to determine the remaining life of the equipment based on the correction damage evaluation result of adding. 2. A device attached to an apparatus or a member thereof,
An operation-measuring means for measuring the state of the device or member during operation, and an operation control device for the device,
An operation parameter measurement unit that measures an element necessary for operation control of the device, a communication unit that transmits and receives a measurement signal obtained by each of these measurement units, and receives each of the measurement signals via this communication unit. In-operation measured value change trend analysis means for calculating the change tendency of the measurement signal with respect to the operation time or the number of starts, and the temperature and stress of each part of the member are calculated in advance using the finite element method etc. for the assumed operation conditions of the target device The analysis database stored in a table, a measurement value-analysis value matching means for comparing or correcting the analysis value stored in the analysis database with the measurement value, and the analysis value compared or corrected are used. Analytical life prediction means for evaluating the life of a member by means of inspection and the inspection data at the time of regular inspection of the target equipment are stored, and the relationship between the operating time or the number of times of starting and stopping is obtained. Inspection data trend analysis means, regular inspection information-online measurement matching means for comparing and correcting the results of regular inspection data trend analysis and damage evaluation results based on online measurement, and correction by regular inspection information by this means A remaining life determining means for performing a remaining life evaluation based on the damage evaluation result, a maintenance management setting means for determining a maintenance management timing and method from the remaining life determination result, and a display means for displaying the above evaluation determination result. An online life diagnosis system characterized by comprising: 3. The in-operation measuring means is an in-operation metal temperature measuring means for measuring the metal temperature or the surface temperature of a target portion by an optical sensor. 3. The online life diagnosis system according to claim 2, wherein the means is a change tendency analysis means during a metal temperature operation, and calculates a relationship between the measured metal temperature value and the operation time or the number of times of starting and stopping and uses the calculated relationship for the life evaluation. 4. The measurement value-analysis value matching means,
3. The method according to claim 2, wherein a comparison is made between a temperature at a representative time between start, rating, and stop in a change characteristic of the metal temperature during operation, a temperature rise rate at start, and a temperature decrease rate at stop. 3. The online life diagnosis system according to 3. 5. The regular inspection information used in the regular inspection information-on-line measurement matching means is a metal temperature estimation of each part of a member estimated from a precipitate size in a microstructure obtained by a cutting survey or a replica survey of a device or a member. 5. The method according to claim 2, wherein a temperature change history of each part of the member obtained by the measured value-analysis value matching means is corrected using the estimated metal temperature value, and used for life evaluation. An online life diagnosis system according to any of the above. 6. The regular inspection information used in the regular inspection information-on-line measurement matching means is measurement information of a maximum crack length, a total crack length, or a crack length density of a member. The deviation between the number of startups and the variation in the number of startups of the crack amount obtained by the analytical life prediction means are compared with each other, and a method for correcting the life evaluation condition is determined based on the variation in the deviation. The online life diagnosis system according to any one of claims 2 to 5, wherein the system is used for life evaluation. 7. The regular inspection information used in the regular inspection information-on-line measurement matching means is a creep strain amount based on a precipitate size obtained from a microstructure observation of a member, and a change in the creep distortion amount with respect to an operation time. The deviation between the tendency and the change tendency with respect to the operation time of the creep strain amount obtained by the analytical life prediction means is compared, and a correction method of the life evaluation condition is determined based on the change tendency of the deviation, and used for the life evaluation. The online life diagnosis system according to any one of claims 2 to 5, wherein: 8. The regular inspection information used in the regular inspection information-on-line measurement matching means is measurement information of the oxidation depth of the member, and the change in the oxidation depth with respect to the operation time and the analytical life prediction. 6. The method according to claim 2, wherein a deviation of a change tendency of the oxidation depth amount with respect to the operation time obtained by the means is compared, a method of correcting the life evaluation condition is determined from the change tendency of the deviation, and the method is used for the life evaluation. Online life diagnosis system according to any of the above. 9. The remaining life determining means takes fatigue as a number-dependent life and takes the shorter of creep or oxidation as a time-dependent life. It is set based on the fatigue test or compression holding thermal fatigue test result, and the time-dependent life is set in advance based on the creep test and oxidation test result of the member by experiment, and further, the tensile holding low cycle fatigue test or Based on the results of the tensile retention thermal fatigue test, an intermediate range between the number-dependent life and the time-dependent life is set, and the allowable start / stop times / permissible operation time diagram is used to determine the usable limit using these lower limits. An online life diagnosis system according to any one of claims 2 to 8, wherein the system is used. The 10. remaining life determining means, thermomechanical fatigue test and a synchronization ν of the test waveform in the low cycle fatigue test temperature under constant, breakage repetition number N _f of the holding waveform to failure repetition number N _{f 0} No retention The relationship with the ratio (N _f / N _f0 : life reduction rate) is _{expressed by the following} equation. 2. The online life diagnosis system according to claim 1, wherein the determination is made based on the following, and the allowable allowable number of starts is determined. 11. The in-operation measuring means is an in-operation measuring means for measuring the temperature of the thermal barrier coating applied to the surface of the device or member, and measures the surface temperature of the thermal barrier coating of the target portion by an optical sensor. The operating-measurement value change trend analyzing means analyzes the relationship between the thermal barrier coating temperature measured value and the operation time or the number of times of start-stop by the thermal barrier coating temperature operating change tendency analyzing means, and peels off the thermal barrier coating. The online life diagnosis system according to claim 1, wherein the system is used for detecting. 12. The remaining life determining means monitors the period until the thermal barrier coating is peeled off, and determines the temperature, stress and strain after peeling off the thermal barrier coating based on a temperature correction calculation. 12. The online life diagnosis system according to claim 11, wherein the shorter of creep or oxidation is taken as the time-dependent life, and the life is predicted. 13. The in-operation measuring means is an in-operation measuring means for arranging an optical gap measuring means on a casing side opposed to a high-temperature blade tip of a motor to measure a change in position of the blade tip. The medium measured value change trend analysis means is a change trend analysis means during gap temperature operation, and analyzes the relationship between the oxidation thinning or creep deformation of the blade tip and the operation time or the number of start and stop times based on the change in gap to determine abnormalities. The online life diagnosis system according to claim 1, wherein the system detects a sign. 14. The regular inspection information-on-line measurement matching means, wherein the regular inspection information is measurement information of the oxidation thinning amount of the wing tip portion, and the change tendency of the oxidation thinning amount with respect to the operation time and the analytical data. The method according to claim 1, wherein a deviation of the oxidation thinning amount from the change in the operating time with respect to the operation time obtained by the life prediction means is compared, and a correction method of the life evaluation condition is determined from the change in the deviation and used for the life evaluation. 14. The online life diagnosis system according to item 13. 15. The regular inspection information used in the regular inspection information-on-line measurement matching means is measurement information of the elongation of the wing.
The method is characterized by comparing the deviation of the change tendency of the creep deformation amount with respect to the operation time obtained by the analytical life prediction means, determining a method of correcting the life evaluation condition from the change tendency of the deviation, and using the method for the life evaluation. The online life diagnosis system according to claim 13. 16. The in-operation measuring means includes an optical gap measuring means disposed opposite to a crack initiation part of an apparatus or a member, and the in-operation measuring means for measuring a change in a crack size. The measured value change tendency analysis means during operation is a change tendency analysis means during crack propagation operation, and the change tendency of the crack length with respect to the operation time or the number of times of starting and stopping is obtained by the analytical life prediction means. 2. The method according to claim 1, wherein a deviation of the crack growth amount from a change tendency with respect to the operation time or the number of times of starting and stopping is compared, a method of correcting the life evaluation condition is determined from the change tendency of the deviation, and the method is used for the life evaluation. Online life diagnosis system. 17. The inspection information used in the on-line measurement matching means is an estimated metal temperature based on the measurement of the oxidation depth of the member, and the measured value is calculated using the estimated metal temperature. 15. The online life diagnosis system according to claim 14, wherein the temperature change history of each part of the member obtained by the analysis value matching means is corrected and used for life evaluation. 18. The regular inspection information used in the regular inspection information-on-line measurement matching means is measurement information of a crack length of a member. Comparing the deviation of the amount of crack growth obtained with the analytical life prediction means with the change tendency with respect to the operation time or the number of times of starting and stopping, and determining a correction method of the life evaluation condition from the change tendency of the deviation. Item 15. An online life diagnosis system according to Item 14. 19. The in-operation measuring means measures an oxidation monitor material that is exposed on the same surface as a member surface of the device and is disposed so as to maintain insulation from the member, and a change in electric resistance of the oxidation monitor material. The oxidized thinning amount is an in-operation measuring means for measuring the oxidized thinning amount, and the in-operation measured value change tendency analyzing means is an oxidized thinning amount in operation change tendency analyzing means, and the oxidized thinning amount is measured. The deviation between the operating time or the number of startups and stop times is compared with the deviation of the oxidation thinning amount obtained by the analytical life prediction means with respect to the operation time or the number of startups and shutdowns. 2. The online life diagnosis system according to claim 1, wherein a correction method of the condition is determined and used for life evaluation. 20. The in-operation measuring means, wherein the in-operation measuring means has an optical displacement meter arranged to measure the amount of sway of the wing in opposition to the wing of the equipment. The value change tendency analysis means is a change tendency analysis means during blade deformation operation, and the change tendency with respect to the operation time or the number of start / stop times of the blade contact amount, and the operation time or the start of the blade contact amount obtained by the analytical life prediction means. 2. The method according to claim 1, wherein a deviation from a change tendency with respect to the number of stop times is compared, and a correction method of a life evaluation condition is determined from the change tendency of the deviation.
Online life diagnosis system as described. 21. The in-operation measuring means is a deformed in-operation measuring means having a displacement detecting rod or a strain gauge pressed against a device or a member via a spring, and the in-operation measured value change tendency analyzing means is a deformed in-operation measuring means. The change tendency analysis means during operation, the change tendency of the deformation amount of the member with respect to the operation time or the number of start and stop, and the change tendency of the deformation amount of the member obtained by the analytical life prediction means with respect to the operation time or the number of start and stop times 2. The online life diagnosis system according to claim 1, wherein a deviation of the deviation is compared, and a life evaluation condition is corrected based on a change tendency of the deviation to be used for life evaluation. 22. The in-operation measuring means is a displacement in-operation measuring means having displacement detecting means arranged at a plurality of locations so as to detect the position and orientation of a device or a member, and wherein the in-operation measurement value change is performed. The trend analysis means is a change tendency analysis means during the displacement operation, and estimates a wear thinning amount of the mounting portion or the like from the change tendency with respect to the operation time or the number of times of starting and stopping of the position and orientation of the part, and the analytical life prediction means. A deviation of a change tendency of the calculated wear thinning amount with respect to the operation time or the number of times of starting and stopping is compared, and a correction method of a life evaluation condition is corrected based on the change tendency of the deviation and used for the life evaluation. Item 4. An online life diagnosis system according to Item 1. 23. The in-operation measuring means is a rotor deflection in-operation measuring means having displacement detection means disposed at a plurality of locations so as to detect deflection of a rotor of a motor.
The in-operation measured value change tendency analysis means is a rotor deflection operation change tendency analysis means, and the deflection tendency of the deflection in the central portion of the rotor with respect to the operation time or the number of times of starting and stopping, and the stress rotor obtained by the analytical life prediction means. 2. The method according to claim 1, wherein a deviation of the deflection estimation value from a change tendency with respect to the operation time or the number of times of starting and stopping is compared, a method of correcting the life evaluation condition is determined from the change tendency of the deviation, and the method is used for the life evaluation. Online life diagnosis system.