[특허]Method for operating a compressor in case of failure of one or more measured signals

Method for operating a compressor in case of failure of one or more measured signals 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F04B-049/10 F04D-027/02
출원번호	US-0441013 (2013-11-05)
등록번호	US-10060428 (2018-08-28)
우선권정보	IT-CO2012A0056 (2012-11-07)
국제출원번호	PCT/EP2013/073047 (2013-11-05)
국제공개번호	WO2014/072286 (2014-05-15)
발명자 / 주소	Galeotti, Daniele
출원인 / 주소	Nuovo Pignone Srl
대리인 / 주소	GE Global Patent Operation
인용정보	피인용 횟수 : 0 인용 특허 : 30

초록 ▼

A method for operating a compressor. The method includes: acquiring a plurality of measured data; verifying the congruence of the measured data through the calculation of the molecular weight of the compressed gas based on compressor adimensional analysis; in case of failure of a first measurement of the measured data, substituting the first measurement with an estimated value based on the last available value of the molecular weight and on the available measurements of the measured data and on compressor adimensional analysis; and determining an estimated operative point on an antisurge map based on the estimated value and on the available measurements of the measured data.

대표청구항 ▼

1. A method for operating a compressor, the method comprising: acquiring a plurality of measured data obtained from a plurality of respective measuring instruments to measure a characteristic of a gas passing through the compressor at respective suction or discharge sections of the compressor;monitoring each of the measured data from the plurality of respective instruments to detect whether any one of the plurality of measured data is missing;in case of none of the plurality of measured data is missing, calculating a ratio of a molecular weight and a gas compressibility value of the gas based on the plurality of measured data;in case of only one of the plurality of measured data is missing, determining an estimated value of the missing measured data, wherein the estimated value of the missing measured data is based on at least a last value of the ratio of the molecular weight and the gas compressibility value of the gas determined when none of the plurality of measured data was missing;determining an estimated operative point on an antisurge map based on the estimated value of the missing measured data and on available measurements of the plurality of measured data; andactuating an antisurge valve according to the location of the estimated operative point on the antisurge map in comparison to a surge line (SLL). 2. The method according to claim 1, wherein the determining the estimated operative point is performed during a predetermined safety time interval. 3. The method according to claim 2, further comprising, in case of more than one of the plurality of measured data is missing and at the end of the predetermined safety time interval: determining a worst case operative point on the antisurge map based on respective worst case values based on at least one of maximum and minimum values of the missing measurement data of the plurality of measured data; anddetermining a worst-case operative point on the antisurge map based on the respective worst case values and on the measured data of the other plurality of measuring instruments; andactuating the antisurge valve depending upon the location of the worst case operative point on the antisurge map in comparison to the surge line (SLL). 4. The method according to claim 1, wherein the antisurge map is an adimensional antisurge map. 5. The method according to claim 3, wherein the missing measurement data of the plurality of measured data depend on a type of the antisurge map and on a position of a flow element of the compressor. 6. The method according to claim 3, wherein the plurality of measured data is at least one of: pressure at the suction section;pressure at the discharge section;pressure drop across a flow element at the suction section or the discharge section;temperature at the suction section; andtemperature at the discharge section. 7. The method according to claim 2, wherein the antisurge map is an adimensional antisurge map. 8. The method according to claim 3, wherein the antisurge map is an adimensional antisurge map. 9. The method according to claim 1, where the plurality of measured data is at least one of: pressure at the suction section;pressure at the discharge section;pressure drop across a flow element at the suction section or the discharge section;temperature at the suction section; andtemperature at the discharge section. 10. A method for operating a compressor, the method comprising: acquiring a plurality of measured data obtained from a plurality of respective measuring instruments to measure a characteristic of a gas passing through the compressor at respective suction or discharge sections of the compressor;monitoring each of the measured data from the plurality of respective instruments to detect whether any one of the plurality of measured data is missing;in case of none of the plurality of measured data is missing, calculating a ratio of a molecular weight and a gas compressibility value of the gas based on the plurality of measured data;in case of only one of the plurality of measured data is missing, determining an estimated value of the missing measured data, wherein the estimated value of the missing measured data is based on at least a last value of the ratio of the molecular weight and the gas compressibility value of the gas calculated when none of the plurality of measured data was missing; anddetermining an estimated operative point on an antisurge map based on the estimated value of the missing measured data and on available measurements of the plurality of measured data; andwherein determining the estimated operative point on the antisurge map comprises generating an alarm to identify a failure of at least one or more of the plurality of respective measuring instruments including pressure at the suction section, pressure at the discharge section, pressure drop across a flow element at the suction section or the discharge section, temperature at the suction section, and the temperature at the discharge section used to calculate the estimated operative point of the compressor.

이 특허에 인용된 특허 (30)

Keyes ; IV Marion A. (Chagrin Falls OH) Shaffer Jeremiah J. (Euclid OH), Adaptive gain compressor surge control system.
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Gaston John R. (Allegany NY), Antisurge control system for compressors.
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Eastburn Lindsey ; Mass Leon, Apparatus and method for controlling high throughput sputtering.
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Moore, Robert Doak, Compressor surge control.
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Dziubakowski Donald J. (Seven Hills OH) Keyes ; IV Marion A. (Chagrin Falls OH) Shaffer Jeremiah J. (Mentor OH), Compressor surge control method.
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Dziubakowski Donald J. (Seven Hills OH) Keyes ; IV Marion A. (Chagrin Falls OH) Shaffer Jeremiah J. (Mentor OH), Compressor surge control system.
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Goshaw Craig M. (La Crosse WI) Sullivan Brian T. (La Crosse WI) Rentmeester Paul C. (La Crosse WI), Control method and apparatus for a centrifugal chiller using a variable speed impeller motor drive.
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Sullivan Brian T. (La Crosse WI) Goshaw Craig M. (La Crosse WI) Rentmeester Paul C. (La Crosse WI), Control method and apparatus for a centrifugal chiller using a variable speed impeller motor drive.
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Scotti Del Greco, Alberto; Ferroni, Renato; Mariotti, Gabriele; Barabino, Alessandra, Energy recovery system in a gas compression plant.
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Brenne, Lars; Høydal, Jan, Method and apparatus for composition based compressor control and performance monitoring.
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Mirsky, Saul, Method and apparatus for estimating flow in compressors with sidestreams.
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Mirsky Saul ; Staroselsky Naum, Method and apparatus for limiting a critical variable of a group of compressors or an individual compressor.
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Batson Brett W. (Dallas Center IA) Narayanan Krishnan (Ankeny IA), Method and apparatus for measuring the distance of a turbocompressor\s operating point to the surge limit interface.
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Albers Rolf (Oberhausen DEX) Blotenberg Wilfried (Oberhausen DEX), Method and apparatus for operating turbo compressor using analog and digital control schemes.
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Staroselsky Naum (Des Moines IA) Mirsky Saul (West Des Moines IA) Reinke Paul A. (Des Moines IA), Method and apparatus for preventing surge in a dynamic compressor.
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Narayanan,Krishnan; Fisher,Paul F., Method and apparatus for the prevention of critical process variable excursions in one or more turbomachines.
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Petrosov, Petr A., Method and apparatus of molecular weight determination for gases flowing through the compressor.
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Galeotti, Daniele, Method and device performing model based anti-surge dead time compensation.
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Narayanan, Krishnan; Reinke, Paul; Dukle, Nikhil, Method for preventing surge in a dynamic compressor using adaptive preventer control system and adaptive safety margin.
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Hobbs James W. (Sweeny TX), Molecular weight determination for constraint control of a compressor.
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Orloff Eugene F. (Long Beach CA) Horowitz Martin (Lynbrook NY) Rittner Charles H. (Great River NY), Multiplexed junction probe for fuel gaging system and system containing same.
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Boyden, Scott A.; Piche, Stephen, Optimized air pollution control.
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Forbes, William Butler; Sugars, Michael Eugene; Hayes, IV, Walter Edgar; Boe, Eugene; Jost, Scott Lawrence; Hovan, Richard Andrew; Smith, Keith Alex, Sensor validation and value replacement for continuous emissions monitoring.
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Lawless Brian S. (Baton Rouge LA) Stickel John E. (Randolph NJ), Surge control in compressors.
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McLeister Larry D., Surge prevention control system for dynamic compressors.
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McLeister Larry D. ; Bostick Gary W., Surge recurrence prevention control system for dynamic compressors.
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Shapiro,Vadim, System and method of surge limit control for turbo compressors.
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Gaston John R. (Allegany NY), System, apparatus, and method for detecting and controlling surge in a turbo compressor.
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Lucas,Clifford E.; Brochu,Philip A.; Rooney,William Carl, Utilization of bogdown of single-shaft gas turbines to minimize relief flows in baseload LNG plants.
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Keeler James D. (Austin TX) Havener John P. (Austin TX) Godbole Devendra (Austin TX) Ferguson Ralph B. (Austin TX), Virtual continuous emission monitoring system with sensor validation.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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Method for operating a compressor in case of failure of one or more measured signals 원문보기

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Method for operating a compressor in case of failure of one or more measured signals 원문보기

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