JPS62168541A - Method for diagnosing abnormality of reactor - Google Patents
Method for diagnosing abnormality of reactorInfo
- Publication number
- JPS62168541A JPS62168541A JP61007324A JP732486A JPS62168541A JP S62168541 A JPS62168541 A JP S62168541A JP 61007324 A JP61007324 A JP 61007324A JP 732486 A JP732486 A JP 732486A JP S62168541 A JPS62168541 A JP S62168541A
- Authority
- JP
- Japan
- Prior art keywords
- reactor
- reaction
- temperature
- abnormality
- temp
- 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.)
- Granted
Links
- 230000005856 abnormality Effects 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims description 26
- 238000006243 chemical reaction Methods 0.000 claims abstract description 79
- 239000002994 raw material Substances 0.000 claims description 7
- 238000003745 diagnosis Methods 0.000 claims description 4
- 230000000704 physical effect Effects 0.000 abstract description 9
- 239000000498 cooling water Substances 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 description 7
- 239000007795 chemical reaction product Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000002826 coolant Substances 0.000 description 3
- 239000000376 reactant Substances 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/002—Avoiding undesirable reactions or side-effects, e.g. avoiding explosions, or improving the yield by suppressing side-reactions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Testing And Monitoring For Control Systems (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、反応器における反応プロセスの異常を診断す
る方法に関し、特に、反応モデルから求めた転化速度と
、反応器の内部温度およびジャケット温度を軸とした反
応軌道にもとづいて反応プロセスの異常を診断するよう
にした反応器の異常診断方法に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for diagnosing an abnormality in a reaction process in a reactor, and in particular, to a method for diagnosing an abnormality in a reaction process in a reactor, and in particular, a method for diagnosing an abnormality in a reaction process in a reactor, and in particular, a method for diagnosing an abnormality in a reaction process in a reactor. The present invention relates to a method for diagnosing an abnormality in a reactor, which diagnoses an abnormality in a reaction process based on a reaction trajectory centered on .
［従来の技術］
石油化学工業等における反応器においては、一定の供給
量に対して製品の収率を最大にし、さらには必要なだけ
の純度を確保したりするために、反応プロセスを安定し
た状態に維持しなければならない。このためには、反応
生成物の物性を決定づける転化速度を安定した状態に維
持させることが、特に重要となる。[Conventional technology] In reactors used in the petrochemical industry, etc., it is necessary to stabilize the reaction process in order to maximize the yield of the product for a given amount of supply and also to ensure the required purity. must be maintained in condition. For this purpose, it is particularly important to maintain a stable conversion rate, which determines the physical properties of the reaction product.
しかし、従来、この種の反応器においては、反応生成物
の物性を決定づける、反応中の転化速度の推定を行なう
ことができないため、最終製品の流動性にもとづいたメ
ルト・インデックス（＋５ｅｌｔｉｎｄｅｘ ）測定な
どにより物性の試験を行なっていた。However, conventionally, in this type of reactor, it is not possible to estimate the conversion rate during the reaction, which determines the physical properties of the reaction product. The physical properties were tested using the following methods.
［解決すべき問題点１
上述のように従来は、最終製品のメルト・インデックス
測定などにより物性を試験していたために１反応生成物
の物性変化を早期に検知することができなかった。その
ため、バッチ式重合反応器などにおいては、規格外製品
が発生すると、そのバッチによって反応加工させた全製
品の使用ができなくなり、大きな損害を招くことがあっ
た。[Problem to be Solved 1] As mentioned above, in the past, changes in the physical properties of a reaction product could not be detected early because physical properties were tested by measuring the melt index of the final product. Therefore, in a batch-type polymerization reactor or the like, if a non-standard product is produced, all the products reaction-processed by that batch become unusable, resulting in great damage.
本発明は上記問題点にかんがみてなされたもので、反応
モデルにより原料の転化速度を予測するとともに、反応
器の温度を測定し、この転化速度と反応器温度の少なく
とも−・方から、反応状態すなわち、反応生成物の反応
中における物性変化を早期に検知して、反応器における
反応プロセスの異常を診断するようにした反応器の異常
診断方法の提供を目的とした。The present invention has been made in view of the above-mentioned problems, and uses a reaction model to predict the conversion rate of the raw material, measures the temperature of the reactor, and determines the reaction state from at least the one between the conversion rate and the reactor temperature. That is, the object of the present invention is to provide a method for diagnosing an abnormality in a reactor, which detects changes in physical properties of reaction products during the reaction at an early stage and diagnoses an abnormality in the reaction process in the reactor.
［問題点の解決手段］
上記目的を達成するため本発明の反応器の異常診断方法
は、反応器の反応プロセスにおいて、反応モデルから推
定した原料の転化速度と反応器の温度の少なくとも一方
より、反応器の反応状態の安定性を判定し、この判定結
果にもとづいて反応器の反応プロセスに異常があるか否
かを診断する方法とし、特に、反応モデルから推定した
原料の転化速度と反応器の温度の少なくとも一方をＣＲ
Ｔディスプレイ装置に表示し、この表示内容と予め求め
た転化速度９反応器の温度の表示内容とを比較して反応
器の反応状態の安定性を判定する方法としである。[Means for Solving Problems] In order to achieve the above object, the method for diagnosing abnormality in a reactor according to the present invention is based on at least one of the conversion rate of the raw material estimated from the reaction model and the temperature of the reactor in the reaction process of the reactor. This is a method of determining the stability of the reaction state of the reactor and diagnosing whether there is an abnormality in the reaction process of the reactor based on this determination result. CR
This is a method for determining the stability of the reaction state of the reactor by comparing the displayed content on the T display device and the displayed content of the conversion rate 9 reactor temperature determined in advance.
［実施例〕
以下、本発明の実施例を第１図乃至第５図にもとづいて
説明する。[Example] Hereinafter, an example of the present invention will be described based on FIGS. 1 to 5.
まず、第１図にもとづき本実施例の方法を実施するため
の装置の構成について説明する。First, the configuration of an apparatus for carrying out the method of this embodiment will be explained based on FIG.
第１図において、ｌは反応器であり、その周囲には反応
器１の内部温度を制御するジャケット２が設けである。In FIG. 1, l is a reactor, around which is provided a jacket 2 for controlling the internal temperature of the reactor 1.
３はジャケット２に供給する冷却媒体の供給管で、熱交
換器４において冷却水と熱交換が行なわれ温度管理され
る。５は冷却水の供給管６に設けである温度制御用の流
量調節弁である。７は反応器１の内部温度を測定する温
度検出器、８はジャケット２の温度を測定する温度検出
器、９は冷却水の熱交換器４の入口温度を測定する温度
検出器、１０は冷却水の熱交換器４の出口温度を測定す
る温度検出器であり、推定演算装置１１に入力される。Reference numeral 3 denotes a supply pipe for supplying a cooling medium to the jacket 2, which exchanges heat with cooling water in a heat exchanger 4 to control the temperature. Reference numeral 5 denotes a flow rate regulating valve for temperature control, which is provided in the cooling water supply pipe 6. 7 is a temperature sensor that measures the internal temperature of the reactor 1, 8 is a temperature sensor that measures the temperature of the jacket 2, 9 is a temperature sensor that measures the inlet temperature of the cooling water heat exchanger 4, and 10 is a cooling This is a temperature detector that measures the outlet temperature of the water heat exchanger 4, and is input to the estimation calculation device 11.
推定演算装置１１は、予め設定しである転化速度の推定
演算式と、除熱速度演算式にもとづき、各温度検出器７
，８，９．１０からの測定値により原料の転化速度を算
出する。この推定演算装置ｌｌは、反応器ｌの内部にお
ける単位時間あたりの除熱量すなわち除熱速度、および
反応器１のジャケット２における単位時間あたりの除熱
量すなわち除熱速度を算出する機能と、単位時間あたり
の転化率すなわち転化速度を算出する機能とを備えてい
る。The estimation calculation device 11 calculates each temperature sensor 7 based on a preset conversion rate estimation calculation formula and a heat removal rate calculation formula.
, 8, 9. Calculate the conversion rate of the raw material from the measured values from 10. This estimation calculation device 11 has a function of calculating the amount of heat removed per unit time in the reactor 1, that is, the heat removal rate, and the amount of heat removed per unit time, ie, the heat removal rate in the jacket 2 of the reactor 1, and It also has a function to calculate the conversion rate, that is, the conversion rate.
１２はＣＲＴディスプレイ装置であり、推定演算装置１
１によって算出した転化速度と、温度検出器７，８で測
定された反応器１の内部温度およびジャケット２の温度
を表示する。また、ＣＲＴディスプレイ装置１２は、」
二記転化速度および温度を表示すると同時に、設計、制
御実績等にもとづいて予め求めた転化速度に関する許容
範囲等と、同様にして求めた反応器ｌの内部温度とジャ
ケット温度に関する許容範囲等を表示する。なお、ＣＲ
Ｔディスプレイ装置１２は、転化速度用と反応器温度用
のものとを別個に設けるのが一般的であるが、例えば、
一台を切り換えて使用したりすることも勿論可能である
。12 is a CRT display device, and estimation calculation device 1
1, and the internal temperature of the reactor 1 and the temperature of the jacket 2 measured by the temperature detectors 7 and 8 are displayed. In addition, the CRT display device 12 is
In addition to displaying the conversion rate and temperature, the tolerance range for the conversion rate, etc. determined in advance based on design and control results, etc., and the tolerance range, etc. for the internal temperature and jacket temperature of the reactor l, determined in the same way, are displayed. do. In addition, CR
Generally, the T display device 12 is provided separately for conversion rate and reactor temperature, but for example,
Of course, it is also possible to switch and use one unit.
次に、第２図のフローチャートにより実施例の方法につ
いて説明する。Next, the method of the embodiment will be explained with reference to the flowchart shown in FIG.
■ 各温度検出器７，８，９．１０によって反応器１の
内部温度と、ジャケット温度と、冷却水の熱交換器４の
入口温度および出口温度を測定する（第２図における１
０１の過程）。■ Measure the internal temperature of the reactor 1, the jacket temperature, and the inlet temperature and outlet temperature of the cooling water heat exchanger 4 by each temperature detector 7, 8, 9.10 (1 in Fig. 2).
01 process).
■ 推定演算装置１１において、上記温度測定値にもと
づき、予め設定しである転化速度の推定演算式と、除熱
速度演算式により所定の演算を行ない、反応器内部にお
ける除熱速度とジャケットにおける除熱速度を算出し、
さらに転化温度を算出する（第２図における１０２の過
程）。- The estimation calculation device 11 performs a predetermined calculation based on the temperature measurement value using a preset conversion rate estimation calculation formula and a heat removal rate calculation formula, and calculates the heat removal rate inside the reactor and the heat removal rate in the jacket. Calculate the thermal rate,
Furthermore, the conversion temperature is calculated (step 102 in FIG. 2).
Ｏ転化速度の推定演算式
％式％
ここでｋ。：頻度係数
Ｅａ ：活性化エネルギー
Ｒ：ガス定数
Ｏ反応器内部における除熱速度（単位時間あたりの除熱
量）
ＱＪ＝ΔＨ−ＷＲ・γ−Ｃ□・ ＷＴ・ｄＴｐ／ｄｔ・
・・・・・ （２）
Ｏジャケットにおける除熱速度（単位時間あたりの除熱
量）
ＱＪ ＝ＵＡ （ＴＲ−ＴＪ ）
＝ Ｃｐｃ−Ｗｅ （Ｔｏｕｒ −ＴＩＮ） −・＝
（３）」二記（１）〜（３）式における記号は次の通
りである。Estimated calculation formula for O conversion rate % formula % where k. : Frequency coefficient Ea : Activation energy R: Gas constant O Heat removal rate inside the reactor (amount of heat removed per unit time) QJ=ΔH-WR・γ-C□・WT・dTp/dt・
... (2) Heat removal rate in O jacket (amount of heat removed per unit time) QJ = UA (TR-TJ) = Cpc-We (Tour -TIN) -.=
(3)'' The symbols in formulas (1) to (3) are as follows.
γ：転化速度
Ｘ：転化率
ＣＡＴ ：触媒濃度
α：反応系により決定される定数
ＴＲ：反応物の上昇温度
ＴＪ ：ジャケット温度
ＴＴＮ：冷却水入口温度
ＴＯＬＩＴ ：冷却水出口温度
ΔＨ：反応熱
Ｃｐｃ：冷却水の平均比熱
ＱＪ ：除熱温度
ＷＲ：反応物質量
ＷＪ ：反応器内容物重量（反応物質および触媒）Ｗｃ
：冷却媒体の重量
Ｃｐ−二Ｗ丁の平均比熱
Ｕ：総括伝熱係数
Ａ：伝熱面積
ここで、（２）および（３）式より、単位時間あたりの
転化率、すなわち転化速度を求める。γ: Conversion rate Average specific heat of cooling water QJ: Heat removal temperature WR: Reactant amount WJ: Reactor contents weight (reactant and catalyst) Wc
: Weight of cooling medium Cp - Average specific heat U of 2W: Overall heat transfer coefficient A: Heat transfer area Here, from equations (2) and (3), the conversion rate per unit time, that is, the conversion rate is determined.
γ＝（１／（ΔＨ−ＷＲ））
ｌｃｐｃ−ＷＣ−（ＴＯＬＩＴ −ＴＩＮ） ＋Ｃｐ＊
・ＷＴ・（ｄＴＲ／ｄｔ））
・・・・・・（４）
となる。γ=(1/(ΔH-WR)) lcpc-WC-(TOLIT-TIN) +Cp*
・WT・(dTR/dt)) ......(4) It becomes.
■ 上記演算によって算出した転化速度をＣＲＴディス
プレイ装置１２に表示し、第３図に示すように、設計お
よび制御実績等より予め求めた転化速度の安定ゾーン、
警戒ゾーンあるいは不安定ゾーンのどの位置にあるか判
るように表示する（第２図における１０３の過程）。■ The conversion speed calculated by the above calculation is displayed on the CRT display device 12, and as shown in FIG.
The position of the warning zone or unstable zone is displayed so that it can be seen (step 103 in FIG. 2).
■ 転化速度のＣＲＴディスプレイ装置１２への表示と
同様に、反応器ｌの内部温度とジャケット温度を軸とし
た反応軌道をＣＲＴディスプレイ装置１２に表示し、第
４図に示すように、設計および制御実績等より予め求め
た反応軌道の安定ゾーン、警戒ゾーンあるいは不安定ゾ
ーンのどの位置にあるか判るように表示する（第２図に
おける１０４の過程）。■ In the same way as the conversion rate is displayed on the CRT display device 12, the reaction trajectory centering on the internal temperature and jacket temperature of the reactor 1 is displayed on the CRT display device 12, and as shown in FIG. The reaction trajectory is displayed so that it can be seen where it is in the stable zone, warning zone, or unstable zone of the reaction trajectory determined in advance from actual results (step 104 in FIG. 2).
■ ＣＲＴディスプレイ装置１２への上記表示結果にも
とづき、反応状態の安定性を判定し、反応器１の反応プ
ロセスに異常があるか否かを診断する（第２図における
１０５の過程）。第３図および第４図における、Ａ曲線
を示すような反応の場合には、転化速度および反応軌道
は安定しており、反応プロセスに異常がないと診断でき
る。一方、３曲線を示すような反応の場合には、転化速
度および反応軌道が不安定であり、反応プロセスに異常
があると診断できる。(2) Based on the above display results on the CRT display device 12, the stability of the reaction state is determined, and it is diagnosed whether or not there is an abnormality in the reaction process of the reactor 1 (step 105 in FIG. 2). In the case of a reaction that shows curve A in FIGS. 3 and 4, the conversion rate and reaction trajectory are stable, and it can be diagnosed that there is no abnormality in the reaction process. On the other hand, in the case of a reaction that shows three curves, the conversion rate and reaction trajectory are unstable, and it can be diagnosed that there is an abnormality in the reaction process.
したがって、この場合には、自動あるいは手動により温
度制御用冷却水の流量調節弁５を調整してジャケット温
度を上昇または下降させ、安定した反応状態に戻るよう
に制御する。Therefore, in this case, the temperature control cooling water flow control valve 5 is automatically or manually adjusted to raise or lower the jacket temperature and control is performed to return to a stable reaction state.
なお、ＣＲＴディスプレイ装置１２への表示パターンと
しては、第５図に示すような、反応器の内部温度とジャ
ケット温度の変化経過を表示したパターンとしたことも
できる。The display pattern on the CRT display device 12 may also be a pattern showing the progress of changes in the internal temperature of the reactor and the jacket temperature, as shown in FIG.
このように本実施例の異常診断方法によれば、反応モデ
ルにより原料の転化速度を予測し、この予測結果から反
応プロセスの異常を診断しているので、反応中に反応生
成物の物性変化を検知でき、早期に対応策を講じること
ができる。したがって、規格外製品の発生を未然に防止
することが可能となり、特にバッチ式の反応器等のごと
く、一度規格外の製品が発生すると全量使用できなくな
る虞れのある反応器において有効性が高い。As described above, according to the abnormality diagnosis method of this embodiment, the conversion rate of the raw material is predicted by the reaction model, and abnormalities in the reaction process are diagnosed from the prediction results, so that changes in the physical properties of the reaction products can be detected during the reaction. It can be detected and countermeasures can be taken early. Therefore, it is possible to prevent the generation of substandard products, and this is particularly effective in reactors such as batch-type reactors, where once a substandard product occurs, the entire amount may become unusable. .
なお、本発明の反応器の異常診断方法は、上記実施例に
限定されるものではなく、反応モデルから推定した原料
の転化速度、あるいは反応器の内部温度とジャケット温
度を軸とした反応軌道のいずれか一方のみにもとづく方
法であってもよい。The reactor abnormality diagnosis method of the present invention is not limited to the above embodiments, but is based on the conversion rate of the raw material estimated from the reaction model or the reaction trajectory centered on the internal temperature and jacket temperature of the reactor. A method based only on either one may be used.
また、反応器の温度にもとづく方法の場合には、転化速
度による方法と併用するか否かは問わず、反応器の内部
温度か、反応器のジャケット温度のいずれか一方のみに
よって診断する方法であってもよい。さらに、転化速度
９反応器の温度の表示はＣＲＴディスプレイ装置以外の
指示計あるいは記録計等に表示させることも可能である
。この場合、これら計器の目盛部あるいは記録紙等に安
定ゾーンや不安定ゾーンを表示することもできる。In addition, in the case of a method based on reactor temperature, regardless of whether or not it is used in conjunction with a method based on conversion rate, diagnosis can only be made based on either the internal temperature of the reactor or the jacket temperature of the reactor. There may be. Furthermore, the temperature of the conversion rate 9 reactor can be displayed on an indicator or recorder other than the CRT display device. In this case, the stable zone and unstable zone can also be displayed on the scale of these meters or on recording paper.
［発明の効果］
以北のように本発明によれば、製品の物性変化を早期に
検知することができ、規格外製品の発生を未然に防止す
ることができる。[Effects of the Invention] As described above, according to the present invention, changes in physical properties of products can be detected at an early stage, and generation of non-standard products can be prevented.
第１図乃至第５図は本発明方法の実施例に関する図面で
、第１図は実施装置の構成図、第２図は実施例のフロー
チャート、第３図は転化速度の表示図、第４図は反応器
の内部温度とジャケット温度を軸とした反応軌道の表示
図、第５図は反応器の温度変化の表示図を示す。
１：反応器 ２：ジャケット３：冷却媒体
の供給管 ４：熱交換器５：調節弁 ６
：冷却水の供給管７．８，９，１０：温度検出器
１１：推定演算装置Figures 1 to 5 are drawings relating to an embodiment of the method of the present invention, in which Figure 1 is a block diagram of the implementation apparatus, Figure 2 is a flowchart of the embodiment, Figure 3 is a diagram showing the conversion rate, and Figure 4 is a diagram showing the method of the present invention. 5 shows a diagram of the reaction trajectory centering on the internal temperature of the reactor and the jacket temperature, and FIG. 5 shows a diagram of the temperature change of the reactor. 1: Reactor 2: Jacket 3: Cooling medium supply pipe 4: Heat exchanger 5: Control valve 6
: Cooling water supply pipe 7.8, 9, 10: Temperature detector 11: Estimation calculation device
Claims (5)
推定した原料の転化速度と反応器の温度の少なくとも一
方より、反応器の反応状態の安定性を判定し、この判定
結果にもとづいて反応器の反応プロセスに異常があるか
否かを診断することを特徴とした反応器の異常診断方法
。(1) In the reaction process of the reactor, the stability of the reaction state of the reactor is determined from at least one of the conversion rate of the raw material estimated from the reaction model and the temperature of the reactor, and based on this determination result, the stability of the reaction state of the reactor is determined. A reactor abnormality diagnosis method characterized by diagnosing whether or not there is an abnormality in a reaction process.
の温度の少なくとも一方をＣＲＴディスプレイ装置に表
示し、この表示内容と予め求めた転化速度、反応器の温
度の表示内容とを比較して反応器の反応状態の安定性を
判定することを特徴とした特許請求の範囲第１項記載の
反応器の異常診断方法。(2) Display at least one of the conversion rate of the raw material estimated from the reaction model and the reactor temperature on a CRT display device, and compare this display with the previously determined conversion rate and reactor temperature. The method for diagnosing abnormality in a reactor according to claim 1, characterized in that the stability of the reaction state of the reactor is determined.
特徴とした特許請求の範囲第１項または第２項記載の反
応器の異常診断方法。(3) The method for diagnosing abnormality in a reactor according to claim 1 or 2, wherein the temperature of the reactor is the internal temperature of the reactor.
ことを特徴とした特許請求の範囲第１項または第２項記
載の反応器の異常診断方法。(4) The method for diagnosing abnormality in a reactor according to claim 1 or 2, wherein the temperature of the reactor is the jacket temperature of the reactor.
温度であることを特徴とした特許請求の範囲第１項また
は第２項記載の反応器の異常診断方法。(5) The method for diagnosing an abnormality in a reactor according to claim 1 or 2, wherein the temperature of the reactor is the internal temperature of the reactor and the jacket temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61007324A JPS62168541A (en) | 1986-01-17 | 1986-01-17 | Method for diagnosing abnormality of reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61007324A JPS62168541A (en) | 1986-01-17 | 1986-01-17 | Method for diagnosing abnormality of reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62168541A true JPS62168541A (en) | 1987-07-24 |
| JPH0527453B2 JPH0527453B2 (en) | 1993-04-21 |
Family
ID=11662785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61007324A Granted JPS62168541A (en) | 1986-01-17 | 1986-01-17 | Method for diagnosing abnormality of reactor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62168541A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0882499A1 (en) * | 1997-06-02 | 1998-12-09 | European Atomic Energy Community (Euratom) | On-line early warning detection system of runaway initiation using chaos theory techniques |
| JP2010186639A (en) * | 2009-02-12 | 2010-08-26 | Chin-Chi Yang | Fuse unit and high-density conductive alloy wire used for the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59209641A (en) * | 1983-05-11 | 1984-11-28 | Mitsubishi Electric Corp | Evading means for abnormal condition of plant |
-
1986
- 1986-01-17 JP JP61007324A patent/JPS62168541A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59209641A (en) * | 1983-05-11 | 1984-11-28 | Mitsubishi Electric Corp | Evading means for abnormal condition of plant |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0882499A1 (en) * | 1997-06-02 | 1998-12-09 | European Atomic Energy Community (Euratom) | On-line early warning detection system of runaway initiation using chaos theory techniques |
| WO1998055220A1 (en) * | 1997-06-02 | 1998-12-10 | European Atomic Energy Community (Euratom) | On-line early warning detection system of runaway initiation using chaos theory techniques |
| US6195010B1 (en) | 1997-06-02 | 2001-02-27 | European Atomic Energy Community | On-line early warning detection system of runaway initiation using chaos theory techniques |
| JP2010186639A (en) * | 2009-02-12 | 2010-08-26 | Chin-Chi Yang | Fuse unit and high-density conductive alloy wire used for the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0527453B2 (en) | 1993-04-21 |
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