JP2609309B2 - Remaining life diagnosis device by non-destructive inspection - Google Patents
Remaining life diagnosis device by non-destructive inspectionInfo
- Publication number
- JP2609309B2 JP2609309B2 JP63320570A JP32057088A JP2609309B2 JP 2609309 B2 JP2609309 B2 JP 2609309B2 JP 63320570 A JP63320570 A JP 63320570A JP 32057088 A JP32057088 A JP 32057088A JP 2609309 B2 JP2609309 B2 JP 2609309B2
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- JP
- Japan
- Prior art keywords
- life
- metal member
- consumption
- calculating
- life consumption
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
- Testing Of Engines (AREA)
- Control Of Turbines (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、高温，高圧下で使用される金属部材の非破
壊検査結果に基づいて、該金属部材の経年劣化の進行状
態を評価すると共に余寿命を診断する自動装置に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention evaluates the progress of aging of a metal member based on the result of nondestructive inspection of the metal member used under high temperature and high pressure. The present invention relates to an automatic device for diagnosing a remaining life.
高温，高圧下で使用される金属部材の１例として、火
力発電プラントにおける蒸気タービンの主要構成部材
は、一般に10万時間クリープ破断強度に基づいて設計，
製作されている。As an example of a metal member used under high temperature and high pressure, main components of a steam turbine in a thermal power plant are generally designed based on a creep rupture strength of 100,000 hours.
Has been produced.
一方、現実の問題として稼動時間が10万時間に達した
火力発電プラントの数が半分以上になってきている。On the other hand, as a practical problem, the number of thermal power plants that have been operating for 100,000 hours has been reduced by more than half.
その上、最近の火力発電プラントの運用形態は起動・
停止頻度が高いので、構成部材の熱経歴変化が激しく、
経年劣化が促進されている。In addition, recent thermal power plant operation modes
Because the frequency of stoppage is high, the thermal history of the components changes significantly,
Aging has been promoted.
このため、構成部材の損傷量（即ち、経年劣化の進行
の度合＝寿命消費量）を非破壊手段によって正しく把握
し、余寿命を適確に診断し得る評価技術の開発が期待さ
れている。Therefore, it is expected to develop an evaluation technique capable of accurately grasping the amount of damage to the component members (that is, the degree of progress of aging = consumption of life) by non-destructive means and appropriately diagnosing the remaining life.
高温，高圧下において使用される金属材料の余寿命診
断に関する最新の技術としては、技術雑誌「電気現場技
術」Vol.25,No.305（昭和62年10月号）57〜62ページに
“タービン設備の余寿命診断技術の現状と今後の課題”
が公知である。The latest technology related to the diagnosis of the remaining life of metal materials used at high temperatures and high pressures is described in the technical magazine “Electric Field Technology”, Vol. 25, No. 305 (October 1987), pp. 57-62. Current Status and Future Issues of Equipment Life Span Diagnosis Technology "
Is known.
上記公知文献を含めて、従来技術における非破壊検査
は一般に、複数項目の非破壊検査が併用される。その理
由は、後に詳述する如く、それぞれの非破壊検査項目
（例えばクリープ損傷度や疲労損傷量）ごとに長所・短
所があるからである。In general, the non-destructive inspection in the related art including the above-mentioned known documents uses a plurality of items of non-destructive inspection. The reason for this is that each non-destructive inspection item (for example, the degree of creep damage and the amount of fatigue damage) has advantages and disadvantages, as will be described in detail later.
而して、複数項目の非破壊検査結果を比較検討し、更
に当該機器の稼働経歴や既往の検査記録を参照して総合
的に判断を下すことは、高度の経験，知識を必要とし、
その上多大の時間と労力とを要する。Therefore, comparing and examining the results of multiple nondestructive inspections, and making comprehensive judgments with reference to the operation history of the equipment and past inspection records requires a high level of experience and knowledge.
In addition, it requires a lot of time and labor.
本発明は上述の事情に鑑みて為されたもので、 高度の知識，経験を必要とせず、 複数項目の非破壊検査結果の比較検討と、当該機器の
稼働経歴，検査記録の参照検討とを、 迅速かす容易に遂行して、 適確に余寿命を診断し得る自動装置を提供することを
目的とする。The present invention has been made in view of the above-mentioned circumstances, does not require a high level of knowledge and experience, and performs comparative examination of non-destructive inspection results of a plurality of items and reference examination of operation history and inspection records of the equipment. It is an object of the present invention to provide an automatic device which can be quickly and easily carried out and which can appropriately diagnose the remaining life.
上記の目的を達成するために創作した本発明に係る余
寿命診断装置は 経歴を保存する情報フアイルと、 経歴情報と現状情報（非破壊検査）とに基づいて複数
項目の寿命消費量を算出する寿命消費量演算部と、 上記複数項目の寿命消費量の中から最も高精度で期待
し得るものを選出する寿命消費量比較器と、 上記の選出された寿命消費量に基づいて今後の余寿命
を算出する余寿命演算部と、 上記余寿命算出結果を表示すると共に、これを前記情
報フアイルに送って記憶させる表示・出力手段とを設け
る。The remaining life diagnosis device according to the present invention created to achieve the above object calculates the life consumption of a plurality of items based on the information file for storing the history and the history information and the current information (non-destructive inspection). A life consumption calculator, a life consumption comparator for selecting the most accurate and expected one from the plurality of life consumptions, and a remaining life based on the life consumption selected above. And a display / output means for displaying the result of the remaining life calculation and sending the result to the information file for storage.
本発明を実施する際、前記の情報フアイルに、非破壊
検査項目ごとに、測定値と損傷量との関係のデータを記
憶させておくことが望ましい。When practicing the present invention, it is desirable to store data on the relationship between the measured value and the damage amount for each non-destructive inspection item in the information file.
また、前記の寿命消費量比較器は、その時の条件下
で、複数の非破壊検査項目の中の、どの項目が最も高精
度を期待できるかを判別するためのプログラムを備えて
おくと良い。Further, it is preferable that the lifetime consumption comparator has a program for determining which item among the plurality of nondestructive inspection items can be expected to have the highest accuracy under the conditions at that time.
前記の情報フアイルを設けておくことにより、診断の
参照とすべき過去の情報が、コンパクトに確実に保存さ
れ、しかも迅速，容易に読み出すことができる。By providing the above information file, past information to be referred to for diagnosis can be stored compactly and reliably, and can be read out quickly and easily.
前記の寿命消費量演算部は、経歴情報と現状情報とに
基づいて複数項目についての寿命消費量を算出し、 前記寿命消費量比較器は該複数項目の中から最も適正
な寿命消費量を選定する。The life consumption calculator calculates life consumption for a plurality of items based on the history information and current information, and the life consumption comparator selects the most appropriate life consumption from the plurality of items. I do.
これにより、寿命の何％を既に消費したかが解るの
で、前記の余寿命演算部は今後の運転計画と睨み合わせ
て余寿命を算出する。As a result, it is possible to determine what percentage of the life has already been consumed, so that the remaining life calculation unit calculates the remaining life in consideration of a future operation plan.
上記の算出値は表示・出力部によって表示されるとと
もに、前記情報フアイルに収納されて次回の余寿命算出
に利用される。The calculated values are displayed by the display / output unit, and are stored in the information file to be used for the next remaining life calculation.
第１図は本発明に係る余寿命診断装置の一実施例を示
す系統図である。FIG. 1 is a system diagram showing one embodiment of a remaining life diagnosis device according to the present invention.
この実施例は蒸気タービンを構成している鉄鋼部材の
余寿命を診断するために構成されたものである。This embodiment is designed for diagnosing the remaining life of a steel member constituting a steam turbine.
当該蒸気タービン、及び、評価対象部材に関する経歴
（運転時間、温度、起動・停止の回数、並びに、非破壊
検査経歴があればその測定値など）は、情報フアイル１
に記憶されている。The history of the steam turbine and the components to be evaluated (operating time, temperature, number of times of start / stop, and the measured value of nondestructive inspection history, if any) is described in the information file 1.
Is stored in
本例における情報フアイル１は、複数の蒸気タービン
プラントについて、それぞれの重要構成部材（鉄鋼性部
材に限る）についての情報を全て収納している。The information file 1 in the present example stores all information on important constituent members (limited to steel members) for a plurality of steam turbine plants.
使用条件入力装置3aはキーボード（図示せず）を備え
ており、このキーボードを操作して、例えば何々火力発
電所何号機などと指定して診断対象部品名を入力する
と、情報フアイル１中の必要な情報が寿命消費量演算部
4aに入力される。The use condition input device 3a is provided with a keyboard (not shown). When the keyboard is operated and the name of the part to be diagnosed is specified by designating, for example, what kind of thermal power plant and what number, the necessary information in the information file 1 is displayed. Information is life consumption calculator
Entered in 4a.
一方、２は非破壊検査装置であって、その測定値は非
破壊検査測定値入力装置3bを介して前記の寿命消費演算
部4aに入力される。On the other hand, reference numeral 2 denotes a non-destructive inspection device, whose measured value is inputted to the above-mentioned life consumption calculating unit 4a via a non-destructively inspected measured value input device 3b.
上記の非破壊検査装置２は、診断対象部材について、
例えば硬度，電気抵抗値などの損傷量推定に必要な測定
値を出力し、入力装置3bを介して寿命消費量演算部4aに
入力させる。このときの入力媒体は、通信回線，フロッ
ピディスク，キーボード操作など、任意の公知手段を使
用し得る。The non-destructive inspection device 2 described above is configured to
For example, a measurement value necessary for estimating a damage amount such as a hardness and an electric resistance value is output and input to the life consumption calculating unit 4a via the input device 3b. As the input medium at this time, any known means such as a communication line, a floppy disk, and a keyboard operation can be used.
また、前記の非破壊検査装置２は、比較のために必要
なときは健全材料に関する測定値も出力する。The non-destructive inspection device 2 also outputs measured values relating to sound materials when necessary for comparison.
このようにして必要な情報を入力された寿命消費量演
算部4aは、各種の非破壊試験の測定値に基づいて寿命消
費量を算出する。The life consumption calculator 4a to which necessary information is input in this way calculates the life consumption based on the measured values of various nondestructive tests.
ここに寿命消費量とは、測定時点において既に消費し
た寿命であって、その主たるものは、高温下で応力を受
けて進行するクリープ損傷量と、繰返し熱応力（特に、
起動と停止との繰返し）によって進行する疲労損傷量と
である。Here, the life consumption is the life that has already been consumed at the time of measurement, and the main ones are the amount of creep damage that progresses under stress at high temperatures and the amount of repeated thermal stress (particularly,
(Repetition of start and stop).
これらの損傷量（損耗の進行の度合）は、実験的に求
められた損傷量診断線図（マスターカーブ）と、実測デ
ータとの比較によって求められる。The amount of damage (the degree of progress of wear) is determined by comparing an experimentally determined damage amount diagnostic diagram (master curve) with measured data.
第２図は硬度低下量（ΔHv）とクリープ損傷量（φ
c1）との関係を示す図表で、クリープ損傷量（φc1）の
増加に伴って硬度低下量（ΔHv）は１次比例的に増加し
ていることが解る。このような関係を数値化又は数式化
したデータを、前記の情報フアイル１に記憶させてお
く。Fig. 2 shows the hardness decrease (ΔHv) and creep damage (φ
c 1) at a table showing the relationship between the hardness decrease with increasing creep damage amount (φc 1) (ΔHv) it is seen to be increased primary proportionally. Data obtained by digitizing or formulating such a relationship is stored in the information file 1.
第３図は電気抵抗率比低下量（ΔＲρ）とクリープ損
傷量（φc3）との関係を示す図表である。電気抵抗率比
の定義については前記公知文献に解説されている。この
ような関係を数値化又は数式化したデータも、前記の情
報フアイル１に記憶させておく。FIG. 3 is a table showing the relationship between the electrical resistivity ratio decrease (ΔRρ) and the creep damage (φc 3 ). The definition of the electrical resistivity ratio is described in the above-mentioned known literature. Data obtained by digitizing or formulating such a relationship is also stored in the information file 1 described above.
第４図はレプリカ法における測定値とクリープ損傷量
との関係を示す図表である。このレプリカ法はＡパラメ
ータ法とも呼ばれ、アセチルセルロースフィルムを用い
て金属組織を写し取って検鏡し、一つの直線（参照線）
が横切る粒界の総数に対する、ボイドの有る粒界の比率
を求めるもので、次式のＡパラメータとする。FIG. 4 is a chart showing the relationship between measured values and the amount of creep damage in the replica method. This replica method is also called an A-parameter method, in which an acetylcellulose film is used to take a picture of a metal structure and examine it with a microscope to obtain one straight line (reference line).
Is used to determine the ratio of the grain boundary having voids to the total number of grain boundaries crossed by.
第４図に示した、Ａパラメータとクリープ損傷量（φ
c2）との関係を数値化又は数式化したデータも、前記の
情報フアイル１に記憶させておく。 The A parameter and the amount of creep damage (φ shown in FIG. 4)
Data obtained by converting the relationship with c 2 ) into a numerical value or a mathematical expression is also stored in the information file 1.
第１図において、寿命消費量演算部4aでは、情報フア
イル１に格納されていた第２図〜第４図の関係を呼び出
されるとともに、非破壊検査装置２から測定値を入力さ
れ、 硬度低下量ΔHvに基づくクリープ損傷量φc1と、電気
抵抗率比低下量ΔＲρに基づくクリープ損傷量φc3と、
Ａパラメータに基づくクリープ損傷量φc2とを算出す
る。In FIG. 1, the life consumption calculating unit 4a calls up the relationship of FIGS. 2 to 4 stored in the information file 1 and inputs a measured value from the nondestructive inspection device 2 to reduce the hardness reduction. and creep damage amount .phi.c 1 based on Delta] HV, and creep damage amount .phi.c 3 based on electrical resistivity ratio decrease Derutaaruro,
The creep damage amount φc 2 based on the A parameter is calculated.
ここで、上記３種類のクリープ損傷量φc1,φc3,φc2
の内の何れが最も信頼できるかを判断しなければならな
いので、これらの出力信号を寿命消費量比較器５に入力
する。Here, the above three types of creep damage amounts φc 1 , φc 3 , φc 2
These output signals are input to the life consumption comparator 5 because it is necessary to determine which of them is the most reliable.
次に、複数個のクリープ損傷量を比較して、最も適正
なものを選出する作用について述べる。Next, an operation of comparing a plurality of creep damage amounts and selecting the most appropriate one will be described.
複数個の非破壊診断方法には、それぞれ精度上の特徴
がある。例えば、クリープ損傷に関して述べると、前述
の文献によれば、硬度測定法は、クリープ損傷の全寿命
が把握できるが、データのバラツキが大きく、高い精度
は、期待できないようである。一方、電気抵抗法は、ク
リープ損傷の比較的小さい場合に精度が高い。又、レプ
リカ法は、クリープ損傷の比較的大きい場合に精度が高
いという特徴がある。従って、複数個の非破壊診断デー
タがある場合に、寿命消費量演算部4aで得られた複数個
の寿命消費量から、１つの値を選択する時には、それぞ
れの精度を考慮して選択することが必要になる。寿命消
費量比較器５の具体的な作用について、第６図〜第８図
を参照しつつ次に述べる。Each of the plurality of non-destructive diagnosis methods has an accuracy feature. For example, regarding the creep damage, according to the above-mentioned literature, the hardness measurement method can grasp the entire life of the creep damage, but the data varies widely and it seems that high accuracy cannot be expected. On the other hand, the electric resistance method has high accuracy when creep damage is relatively small. Further, the replica method has a feature that accuracy is high when creep damage is relatively large. Therefore, when there is a plurality of non-destructive diagnostic data, when selecting one value from the plurality of life consumption amounts obtained by the life consumption calculation unit 4a, it is necessary to consider each accuracy in consideration. Is required. The specific operation of the lifetime consumption comparator 5 will be described below with reference to FIGS.
第６図は、前記３種類の寿命消費量（クリープ損傷
量）φc1,φc2,φc3から一つの値を選択する場合の説明
図である。FIG. 6 is an explanatory diagram when one value is selected from the three types of life consumption amounts (creep damage amounts) φc 1 , φc 2 , and φc 3 .
第６図において、硬度測定法のデータによって得られ
た寿命消費量（クリープ損傷量）（φc1）８が、50％以
上である場合は、レプリカ法による寿命消費量（クリー
プ損傷量）（φc2）９を選択する。もし50％以下であれ
ば電気抵抗法による寿命消費量（詳しくは電気抵抗率比
低下量を用いたクリープ損傷量）（φc3）10を選択す
る。In FIG. 6, when the life consumption (creep damage) (φc 1 ) 8 obtained by the hardness measurement data is 50% or more, the life consumption (creep damage) (φc) by the replica method 2 ) Select 9. If it is 50% or less, the life consumption by the electric resistance method (specifically, the creep damage amount using the electric resistivity ratio reduction amount) (φc 3 ) 10 is selected.
第７図及び第８図は、それぞれ２種類のクリープ損傷
量φc2,φc3から一つの値を選択する場合を示す説明図
である。7 and 8 are explanatory diagrams showing a case where one value is selected from two types of creep damage amounts φc 2 and φc 3 respectively.
レプリカ法によるクリープ損傷率を先に試験したとき
は第７図に示す如く、レプリカ法によるクリープ損傷量
（φc2）９が50％以上であれば、レプリカ法によるクリ
ープ損傷量（φc2）９が、そのままクリープ損傷量（寿
命消費量）として選択される。もし50％以下であれば電
気抵抗法によるクリープ損傷量（φc3）10が選択され
る。When the creep damage rate by the replica method was tested first, as shown in FIG. 7, if the creep damage amount (φc 2 ) 9 by the replica method was 50% or more, the creep damage amount (φc 2 ) 9 by the replica method was 9 Is directly selected as the creep damage amount (lifetime consumption amount). If it is 50% or less, the creep damage amount (φc 3 ) 10 by the electric resistance method is selected.
また、電気抵抗法によるクリープ損傷量（寿命消費
量）（φc3）10を先に試験したときは第８図に示すよう
に、φc3≦50％であればφc3をそのまま選択し、φc3＞
50％であればレプリカ法による寿命消費量（クリープ損
傷量）（φc2）９を採用する。When the creep damage amount (lifetime consumption amount) (φc 3 ) 10 by the electric resistance method was previously tested, as shown in FIG. 8, if φc 3 ≦ 50%, φc 3 was selected as it was, and φc 3 was selected as it was. 3 >
If it is 50%, the life consumption (creep damage) (φc 2 ) 9 by the replica method is adopted.
これらの寿命消費量（クリープ損傷量）φc1,φc2,φ
c3は、その時点における損耗の進行度合であって、余寿
命そのものではない。Their life consumption (creep damage) φc 1 , φc 2 , φ
c 3 is the degree of progress of wear at that time, not the remaining life itself.
そこで、第６図〜第８図のようにして選択した寿命消
費量（クリープ損傷量）に基づいて、第１図に示した余
寿命演算部4bによって余寿命を算出する。Therefore, based on the life consumption (creep damage amount) selected as shown in FIGS. 6 to 8, the remaining life calculation unit 4b shown in FIG. 1 calculates the remaining life.
いま仮に、蒸気タービンの運転条件が長年月に亙って
一定であるとすると、余寿命の評価時点における運転経
歴時間数がＨ時間であり、寿命消費量がａ％であるとす
ると、残存寿命は比例計算によってＨ×（100−ａ）/a
（時間）と算出される。Assuming now that the operating conditions of the steam turbine are constant over many months, the number of operating history hours at the time of the evaluation of the remaining life is H hours, and the life consumption is a%, and the remaining life is a%. Is H × (100−a) / a by proportional calculation.
(Time).
しかし、実際には長年月の間に運転条件が変化するの
で、余寿命演算部4bに対して前記寿命消費量比較器５で
選定した寿命消費量を入力すると共に、運転計画入力装
置６から今後の年間運転時間や起動停止頻度（計画値）
を入力し、余寿命出力装置７に対して余寿命年数を出力
する。However, since the operating conditions actually change over many months, the life consumption selected by the life consumption comparator 5 is input to the remaining life calculation unit 4b, and the operation plan input device 6 Annual operation time and start / stop frequency (planned value)
And outputs the remaining life years to the remaining life output device 7.
上記出力内容は、提出書類プリンタ８によって表示さ
れると共に、情報フアイル１に記憶せしめられる。The output contents are displayed by the submission document printer 8 and stored in the information file 1.
以上はクリープ損傷に関する余寿命診断についての実
施例を説明したが、クリープ損傷以外の寿命消費、例え
ば疲労損傷量に関する余寿命診断を行うには、前述の第
２図〜第４図の関係に代えて第５図の関係などを用いれ
ば良い。In the above, the embodiment regarding the remaining life diagnosis regarding the creep damage has been described. However, in order to perform the remaining life diagnosis regarding the life consumption other than the creep damage, for example, the amount of fatigue damage, the relationship shown in FIGS. 5 may be used.
本第５図は、金属材料に発生している微小亀裂の中の
最大長さと疲労損傷量との関係を示す図表である。FIG. 5 is a chart showing the relationship between the maximum length in a micro crack generated in a metal material and the amount of fatigue damage.
以上説明したように、本発明の余寿命診断装置によれ
ば、 高温，高圧条件下で運転される金属部材について、 高度の知識、経験を必要とせず、 迅速かつ容易に、 非破壊検査に基づく余寿命診断を自動的に行うことが
できるという、優れた実用的効果を奏し、高温高圧条件
で稼働する機器の管理技術の向上と省力化に貢献すると
ころ多大である。As described above, according to the remaining life diagnostic apparatus of the present invention, a metal member operated under high-temperature and high-pressure conditions does not require a high level of knowledge and experience, and is quickly and easily based on nondestructive inspection. It has an excellent practical effect that the remaining life diagnosis can be automatically performed, and it greatly contributes to the improvement of the management technique and the labor saving of the equipment operating under the high temperature and high pressure conditions.
第１図は本発明に係る余寿命診断装置の一実施例を示す
系統図である。 第２図乃至第５図は、上記実施例における寿命消費量演
算部の機能を説明するための図表である。 第６図乃至第８図は、前記実施例における複数項目の寿
命消費量を比較してその内の一つを選定する手法の説明
図表である。 １……情報フアイル、２……非破壊検査装置、3a……使
用条件入力装置、3b……非破壊検査測定値入力装置、4a
……寿命消費量演算部、4b……余寿命演算部、５……寿
命消費量比較器、６……運転計画入力装置、７……余寿
命出力装置、８……表示手段としての提出書類プリン
タ。FIG. 1 is a system diagram showing one embodiment of a remaining life diagnosis device according to the present invention. FIG. 2 to FIG. 5 are charts for explaining the function of the life consumption calculating section in the above embodiment. 6 to 8 are explanatory charts of a method of comparing the life consumption amounts of a plurality of items in the embodiment and selecting one of them. 1 ... Information file, 2 ... Non-destructive inspection device, 3a ... Use condition input device, 3b ... Non-destructive inspection measured value input device, 4a
... Life expenditure calculation unit, 4b... Remaining life calculation unit, 5... Life expenditure comparator, 6... Operation plan input device, 7... Surplus life output device, 8. Printer.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 飯島 活己 茨城県日立市久慈町4026番地 株式会社 日立製作所日立研究所内 (56)参考文献 特開 昭57−29947（ＪＰ，Ａ) 特開 昭58−92952（ＪＰ，Ａ) 特開 昭57−141555（ＪＰ，Ａ) ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor, Katsumi Iijima 4026, Kuji-cho, Hitachi-shi, Ibaraki Pref. Hitachi Research Laboratory, Ltd. (56) References -92952 (JP, A) JP-A-57-141555 (JP, A)
Claims (2)
材の経年劣化を非破壊的に検査し、該検査結果から前記
金属部材の寿命消費量を算出し、該寿命消費量から該金
属部材の余寿命を求める余寿命診断装置において、診断
対象である金属部材の使用経歴情報を保存した情報ファ
イルと、診断対象である金属部材の非破壊検査を複数項
目に渡って行った検査結果を取り込む入力手段と、該入
力手段から取り込んだ項目毎の非破壊検査結果から各項
目毎の寿命消費量を算出する演算手段と、該演算手段が
各項目毎に算出して得た複数の寿命消費量の中から最も
精度の高い寿命消費量をプログラム処理で選択する手段
と、該手段により選択された寿命消費量の値と前記情報
ファイルから読み出した診断対象の金属部材の使用経歴
情報と該金属部材の今後の運転計画とから該金属部材の
余寿命を算出する手段と、該手段の算出結果を出力する
出力手段とを備えることを特徴とする非破壊検査による
余寿命診断装置。1. A non-destructive inspection of a metal member, which is a constituent member of a thermal power plant, for aging, a life consumption of the metal member is calculated from the inspection result, and a life consumption of the metal member is calculated from the life consumption. In the remaining life diagnosis device for obtaining the remaining life, an information file storing the usage history information of the metal member to be diagnosed, and an input to capture the inspection result obtained by performing a nondestructive inspection of the metal member to be diagnosed over a plurality of items Means, calculating means for calculating the life consumption for each item from the non-destructive inspection results for each item taken in from the input means, and calculating the life consumption for each item by the calculating means. Means for selecting the most accurate life consumption from among them by program processing, the value of the life consumption selected by the means, the usage history information of the metal member to be diagnosed read from the information file, and the metal member Means for calculating the remaining service life of the metal member and a future operation plan, remaining life diagnosis apparatus according to a non-destructive inspection and an outputting means for outputting the calculation result of the means.
経年劣化を非破壊的に検査し、該検査結果から前記金属
部材の寿命消費量を算出し、該寿命消費量から該金属部
材の余寿命を求める余寿命診断装置において、診断対象
である金属部材の使用経歴情報を保存した情報ファイル
と、診断対象である金属部材の非破壊検査を複数項目に
渡って行った検査結果を取り込む入力手段と、該入力手
段から取り込んだ項目毎の非破壊検査結果から各項目毎
の寿命消費量を算出する演算手段と、該演算手段が各項
目毎に算出して得た複数の寿命消費量の中から最も精度
の高い寿命消費量をプログラム処理で選択する手段と、
該手段により選択された寿命消費量の値と前記情報ファ
イルから読み出した診断対象の金属部材の使用経歴情報
と該金属部材の今後の運転計画とから該金属部材の余寿
命を算出する手段と、該手段の算出結果を出力する出力
手段とを備えることを特徴とする非破壊検査による余寿
命診断装置。2. A non-destructive inspection of a metal member, which is a component of a steam turbine, for aged deterioration, a life consumption of the metal member is calculated from the inspection result, and a remaining amount of the metal member is calculated from the life consumption. In an extra-life diagnostic device for obtaining a life, an input file for storing an information file storing usage history information of a metal member to be diagnosed and an inspection result obtained by performing a non-destructive inspection of a metal member to be diagnosed over a plurality of items Calculating means for calculating the life consumption of each item from the nondestructive inspection result of each item taken in from the input means; and calculating a plurality of life consumptions calculated by the calculation means for each item. Means for selecting the most accurate lifetime consumption from the program processing from
Means for calculating the remaining life of the metal member from the life consumption value selected by the means, the usage history information of the metal member to be diagnosed read from the information file, and the future operation plan of the metal member, Output means for outputting a calculation result of the means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63320570A JP2609309B2 (en) | 1988-12-21 | 1988-12-21 | Remaining life diagnosis device by non-destructive inspection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63320570A JP2609309B2 (en) | 1988-12-21 | 1988-12-21 | Remaining life diagnosis device by non-destructive inspection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02167443A JPH02167443A (en) | 1990-06-27 |
| JP2609309B2 true JP2609309B2 (en) | 1997-05-14 |
Family
ID=18122910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63320570A Expired - Lifetime JP2609309B2 (en) | 1988-12-21 | 1988-12-21 | Remaining life diagnosis device by non-destructive inspection |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2609309B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006125299A (en) * | 2004-10-28 | 2006-05-18 | Toshiba Corp | Device for evaluating remaining life of steam turbine rotor, method of evaluating remaining life of steam turbine rotor, rotor blade and steam turbine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5729947A (en) * | 1980-07-30 | 1982-02-18 | Hitachi Ltd | Presuming method for expiration data of metallic material |
| JPS57141555A (en) * | 1981-02-25 | 1982-09-01 | Toshiba Corp | Evaluating method for deterioration degree of heat resisting low alloy steel |
| JPS5892952A (en) * | 1981-11-30 | 1983-06-02 | Hitachi Ltd | Estimating method for service life of high temperature member |
-
1988
- 1988-12-21 JP JP63320570A patent/JP2609309B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006125299A (en) * | 2004-10-28 | 2006-05-18 | Toshiba Corp | Device for evaluating remaining life of steam turbine rotor, method of evaluating remaining life of steam turbine rotor, rotor blade and steam turbine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02167443A (en) | 1990-06-27 |
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