MX9503502A - Metodo de control por prediccion de modelo, para un sistema de separacion de aire. - Google Patents

Metodo de control por prediccion de modelo, para un sistema de separacion de aire.

Info

Publication number
MX9503502A
MX9503502A MX9503502A MX9503502A MX9503502A MX 9503502 A MX9503502 A MX 9503502A MX 9503502 A MX9503502 A MX 9503502A MX 9503502 A MX9503502 A MX 9503502A MX 9503502 A MX9503502 A MX 9503502A
Authority
MX
Mexico
Prior art keywords
product
output
intermediate product
independent variable
measure
Prior art date
Application number
MX9503502A
Other languages
English (en)
Inventor
William Matthew Canney
Original Assignee
Praxair Technology Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23114622&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=MX9503502(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Praxair Technology Inc filed Critical Praxair Technology Inc
Publication of MX9503502A publication Critical patent/MX9503502A/es

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04763—Start-up or control of the process; Details of the apparatus used
    • F25J3/04769—Operation, control and regulation of the process; Instrumentation within the process
    • F25J3/04848—Control strategy, e.g. advanced process control or dynamic modeling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
    • F25J3/04254—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using the cold stored in external cryogenic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04406—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system
    • F25J3/04412—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system in a classical double column flowsheet, i.e. with thermal coupling by a main reboiler-condenser in the bottom of low pressure respectively top of high pressure column
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04642—Recovering noble gases from air
    • F25J3/04648—Recovering noble gases from air argon
    • F25J3/04654—Producing crude argon in a crude argon column
    • F25J3/04666—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system
    • F25J3/04672—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser
    • F25J3/04678—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser cooled by oxygen enriched liquid from high pressure column bottoms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04763—Start-up or control of the process; Details of the apparatus used
    • F25J3/04769—Operation, control and regulation of the process; Instrumentation within the process
    • F25J3/04793—Rectification, e.g. columns; Reboiler-condenser
    • F25J3/048—Argon recovery
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B13/00—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion
    • G05B13/02—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
    • G05B13/04—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators
    • G05B13/048—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators using a predictor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2205/00—Processes or apparatus using other separation and/or other processing means
    • F25J2205/02—Processes or apparatus using other separation and/or other processing means using simple phase separation in a vessel or drum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2210/00—Processes characterised by the type or other details of the feed stream
    • F25J2210/42—Nitrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2240/00—Processes or apparatus involving steps for expanding of process streams
    • F25J2240/40—Expansion without extracting work, i.e. isenthalpic throttling, e.g. JT valve, regulating valve or venturi, or isentropic nozzle, e.g. Laval
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
    • F25J2290/10—Mathematical formulae, modeling, plot or curves; Design methods
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S62/00—Refrigeration
    • Y10S62/923—Inert gas
    • Y10S62/924—Argon

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Evolutionary Computation (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Software Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Feedback Control In General (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)

Abstract

Un proceso de separacion criogénica de aire genera tanto un producto intermediario como un producto de salida. El producto intermediario es producido anticipadamente, en el tiempo, respecto al producto de salida; y las variaciones en las mediciones del producto de salida se correlacionan con variaciones anticipadas en las mediciones del producto intermediario. El proceso responde a varios fenomenos variables independientes. El aparato incluye analizadores para proveer mediciones de los productos intermediario y de salida, y de los fenomenos variables independientes. Un procesador de control predice una medicion del producto intermediario, con base en los fenomenos variables independientes, y da salida a valores predichos para el mismo. Luego se determina una diferencia entre el valor predicho actual para el producto intermediario y una medicion del producto intermediario, para llegar a un error en la prediccion. El procesador responde a este error en la prediccion del producto intermediario para predecir ulteriormente valores, tanto actual como futuros, del producto de salida, a fin de permitir que se tomen medidas de control con respecto al producto de salida para controlar las impurezas que hay en él.
MX9503502A 1994-08-15 1995-08-14 Metodo de control por prediccion de modelo, para un sistema de separacion de aire. MX9503502A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/290,123 US5522224A (en) 1994-08-15 1994-08-15 Model predictive control method for an air-separation system

Publications (1)

Publication Number Publication Date
MX9503502A true MX9503502A (es) 1997-06-28

Family

ID=23114622

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9503502A MX9503502A (es) 1994-08-15 1995-08-14 Metodo de control por prediccion de modelo, para un sistema de separacion de aire.

Country Status (10)

Country Link
US (1) US5522224A (es)
EP (1) EP0701186B1 (es)
JP (1) JP3251153B2 (es)
KR (1) KR100234232B1 (es)
CN (1) CN1079940C (es)
BR (1) BR9503639A (es)
CA (1) CA2156146C (es)
DE (1) DE69523702T2 (es)
ES (1) ES2162628T3 (es)
MX (1) MX9503502A (es)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4443190A1 (de) * 1994-12-05 1996-06-13 Linde Ag Verfahren und Vorrichtung zur Tieftemperaturzerlegung von Luft
GB9605171D0 (en) * 1996-03-12 1996-05-15 Boc Group Plc Air separation
DZ2671A1 (fr) * 1997-12-12 2003-03-22 Shell Int Research Processus de liquéfaction d'un produit alimenté gazeux riche en méthane pour obtenir un gaz natural liquéfié.
US6138474A (en) * 1999-01-29 2000-10-31 Air Products And Chemicals, Inc. Argon production control through argon inventory manipulation
DE19925259A1 (de) 1999-06-01 2000-12-07 Linde Ag Automatische Lastverstellung
EP1160528A3 (en) * 2000-05-30 2002-10-16 L'air Liquide, S.A. à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procédés Georges Claude Automatic control system and method for air separation units
DE10040391A1 (de) * 2000-08-18 2002-02-28 Linde Ag Tieftemperaturluftzerlegungsanlage
US6597958B1 (en) * 2001-03-22 2003-07-22 Abb Automation Inc. Method for measuring the control performance provided by an industrial process control system
US6622521B2 (en) * 2001-04-30 2003-09-23 Air Liquide America Corporation Adaptive control for air separation unit
JP4803897B2 (ja) * 2001-05-14 2011-10-26 大陽日酸株式会社 空気液化分離装置の制御方法
KR100879867B1 (ko) * 2002-09-02 2009-01-22 주식회사 포스코 알곤설비의 수소유량 제어방법
TWI314637B (en) 2003-01-31 2009-09-11 Shell Int Research Process of liquefying a gaseous, methane-rich feed to obtain liquefied natural gas
US7204101B2 (en) * 2003-10-06 2007-04-17 Air Liquide Large Industries U.S. Lp Methods and systems for optimizing argon recovery in an air separation unit
JP4866175B2 (ja) * 2006-08-17 2012-02-01 出光興産株式会社 燃料ガス供給装置における燃料ガスの供給制御方法
CN101196498B (zh) * 2006-12-06 2011-06-01 中国科学院计算技术研究所 一种质谱质量测量误差的预测方法
CN100440081C (zh) * 2006-12-26 2008-12-03 浙江大学 空分塔的广义预测控制系统及方法
EP2307638B1 (fr) 2008-01-16 2015-03-25 Cavas Installation de defense ou de protection permettant de contrôler l'entrée des personnes
FR2951532A1 (fr) * 2009-10-15 2011-04-22 Air Liquide Procede de regulation d'une colonne de separation d'argon dans un appareil de distillation cryogenique d'air et appareil de separation d'air comportant une colonne de separation d'argon ainsi regulee
CN101763081B (zh) * 2009-12-17 2011-11-23 浙江大学 一种空分节能过程的非线性过程观测系统及方法
FR2993363B1 (fr) * 2012-07-13 2015-01-23 Air Liquide Procede et dispositif de detection d'un risque de dysfonctionnement dans une unite de separation des composants chimiques d'un produit, notamment de l'air
WO2015025087A1 (fr) 2013-08-22 2015-02-26 L'air Liquide,Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Detection de defaillances dans la determination des concentrations de composants chimiques dans une colonne de distillation
US10061286B2 (en) * 2014-08-13 2018-08-28 Fisher-Rosemount Systems, Inc. Model predictive control using wireless process signals
US9964354B2 (en) * 2016-01-19 2018-05-08 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method for producing pressurized gaseous oxygen through the cryogenic separation of air
DE102016224207A1 (de) * 2016-12-06 2018-06-07 Siemens Aktiengesellschaft Verfahren und Steuereinrichtung zum Steuern eines technischen Systems
EP3473958B8 (de) * 2017-10-18 2020-07-15 Linde GmbH Modellierung einer destillationskolonne bei betriebszustandsänderungen
FR3082923B1 (fr) * 2018-06-22 2020-10-16 Air Liquide Systeme de controle d'un debit d'argon en sortie d'une colonne de distillation
FR3107341A1 (fr) * 2020-02-18 2021-08-20 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Procédé et appareil de séparation d’air par distillation cryogénique
CN113255207A (zh) * 2021-04-14 2021-08-13 杭州电子科技大学 基于迭代多输出-马尔科夫链的空分系统氩馏分变量多步预测方法
EP4390281A1 (en) * 2022-12-20 2024-06-26 Linde GmbH Process and apparatus for producing argon by cryogenic air separation

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4349869A (en) * 1979-10-01 1982-09-14 Shell Oil Company Dynamic matrix control method
DE3342353A1 (de) * 1983-11-23 1985-05-30 Siemens AG, 1000 Berlin und 8000 München Verfahren zum betrieb eines computertomographen
JPS62123279A (ja) * 1985-11-22 1987-06-04 株式会社日立製作所 空気分離装置の制御方法
US4801209A (en) * 1986-01-17 1989-01-31 The Boc Group, Inc. Process and apparatus for analyzing a gaseous mixture and a visible emission spectrum generator therefor
US4784677A (en) * 1987-07-16 1988-11-15 The Boc Group, Inc. Process and apparatus for controlling argon column feedstreams
US4836836A (en) * 1987-12-14 1989-06-06 Air Products And Chemicals, Inc. Separating argon/oxygen mixtures using a structured packing
US5150317A (en) * 1989-01-11 1992-09-22 The Boeing Company Adaptive digital filter which is responsive to the rate of change of an input signal
DE3913880A1 (de) * 1989-04-27 1990-10-31 Linde Ag Verfahren und vorrichtung zur tieftemperaturzerlegung von luft
US5100447A (en) * 1990-08-30 1992-03-31 The Boc Group, Inc. Argon recovery from partial oxidation based ammonia plant purge gases
US5257206A (en) * 1991-04-08 1993-10-26 Praxair Technology, Inc. Statistical process control for air separation process
US5313800A (en) * 1993-02-01 1994-05-24 Praxair Technology, Inc. Process for maximizing the recovery of argon from an air separation system at high argon recovery rates

Also Published As

Publication number Publication date
US5522224A (en) 1996-06-04
DE69523702D1 (de) 2001-12-13
DE69523702T2 (de) 2002-08-01
CN1126307A (zh) 1996-07-10
EP0701186A2 (en) 1996-03-13
CA2156146A1 (en) 1996-02-16
EP0701186A3 (en) 1996-07-03
JP3251153B2 (ja) 2002-01-28
ES2162628T3 (es) 2002-01-01
CN1079940C (zh) 2002-02-27
EP0701186B1 (en) 2001-11-07
KR100234232B1 (ko) 1999-12-15
JPH0869302A (ja) 1996-03-12
CA2156146C (en) 1998-08-25
BR9503639A (pt) 1996-04-16

Similar Documents

Publication Publication Date Title
MX9503502A (es) Metodo de control por prediccion de modelo, para un sistema de separacion de aire.
CA2301829A1 (en) Multivariate statistical model-based system for monitoring the operation of a continuous caster and detecting the onset of impending breakouts
WO1994020887A3 (en) Method and apparatus for analyzing a neural network within desired operating parameter constraints
KR870010402A (ko) 미분탄기에 공급되는 산소 및 연소물의 자동측정 및 제어시스템
CN108956740A (zh) 一种便携式印刷行业VOCs废气检测仪及检测方法
ES466383A1 (es) Metodo y su correspondiente aparato para supervisar un de- tector de neutrones
CN207336355U (zh) 六氟化硫气体分解产物中四氟化碳快速检测装置
SE8000463L (sv) Sett for bestemning av alkoholhalten i andningsluften
JPS6466578A (en) Delay analysis system of logical circuit
JP2008059128A (ja) 電源システム
CN117053323B (zh) 基于室内空气比例自平衡的空气净化系统
JPH08136032A (ja) 負荷予測補正装置
JPS5783825A (en) Temperature regulator
JPS5774627A (en) Monitoring method for periodic motion object
JPH06103264B2 (ja) ガス分析計
JPS60175115A (ja) プラントの効率監視装置
JPS553013A (en) Fault detecting device of control unit
CN104549758A (zh) 静电除尘器的静电场电压控制方法及系统
Jin et al. Analysis and design of adaptive internal model control for unstable process with dead time
KR970033392A (ko) 전극팽창신호를 공정변수로 하는 인공신경회로망에 의한 점용접 품질관리방법 및 그 시스템
SU1142895A2 (ru) Контрольно-решающее устройство с оценкой достоверности прогнозировани качества канала св зи
JPS59122954A (ja) 自動分析装置
JPH03261322A (ja) 変圧器のタップ接点交換予知方式
JPH0553657A (ja) 電子温度調節器
JPH08136031A (ja) 負荷予測補正装置