KR840001677A - Bypass device for steam turbine - Google Patents

Bypass device for steam turbine Download PDF

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KR840001677A
KR840001677A KR1019820004329A KR820004329A KR840001677A KR 840001677 A KR840001677 A KR 840001677A KR 1019820004329 A KR1019820004329 A KR 1019820004329A KR 820004329 A KR820004329 A KR 820004329A KR 840001677 A KR840001677 A KR 840001677A
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Prior art keywords
signal
bypass
steam
controller
turbine
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KR890001727B1 (en
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에이취. 빈스토크 모오톤 (외 2)
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디. 제이. 포비실
웨스팅하우스 일렉트릭 코오포레이숀
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Priority claimed from US06/305,814 external-priority patent/US4455836A/en
Priority claimed from US06/305,813 external-priority patent/US4448026A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/16—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
    • F01K7/22—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type the turbines having inter-stage steam heating
    • F01K7/24—Control or safety means specially adapted therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/105—Final actuators by passing part of the fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/16—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
    • F01K7/165—Controlling means specially adapted therefor

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Control Of Turbines (AREA)

Abstract

내용 없음No content

Description

증기터어빈용 바이패스장치Bypass device for steam turbine

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 바이패스장치를 포함한 증기터어빈 발전소의 간단한 블록도.1 is a simplified block diagram of a steam turbine power plant including a bypass system.

제2도는 종래의 전형적인 바이패스제어장치를 도시하기 위한 제1도의 부분도.FIG. 2 is a partial view of FIG. 1 for illustrating a conventional exemplary bypass control device. FIG.

제3도는 본 발명의 실시예를 도시한 블록도.3 is a block diagram illustrating an embodiment of the invention.

Claims (16)

증기 발생기, 고압터어빈, 적어도 하나의 저압터어빈, 고압과 저압터어빈 사이의 증기류 통로 내의 재가열기, 그리고 바이패스 통로내로 증기의 유입을 제어하기 위한 증기 바이패스 통로 내의 고압 바이패스 밸브장치를 포함하는 터어빈을 바이패스하기 위한 증기 바이패스 통로로 구성되는 증기터어빈용 바이패스 장치에 있어서, 미리 결정된 압력조건에 응답하여 고압 바이패스 밸브를 제어하기 위한 장치와, 재가열기의 입력 및 출력에서의 증기온도 표시인 각각의 냉 및 고 재가열온도 신호들을 제공하기 위해 재가열기의 입력 및 출력의 증기 온도를 측정하는 장치와, 냉 및 고재가열 온도 신호들의 함수로서 고압바이패스 밸브장치에 의해 통과된 증기의 온도를 조절하기 위한 장치를 포함한 것을 특징으로 한 증기 터어빈용 바이패스 장치.A steam generator, a high pressure turbine, at least one low pressure turbine, a reheater in the steam flow passage between the high pressure and the low pressure turbine, and a high pressure bypass valve device in the steam bypass passage for controlling the inflow of steam into the bypass passage. A bypass device for a steam turbine, comprising a vapor bypass passage for bypassing a turbine, comprising: a device for controlling a high pressure bypass valve in response to a predetermined pressure condition; and a steam temperature at an input and an output of a reheater. A device for measuring the steam temperature at the input and output of the reheater to provide respective cold and high reheat temperature signals which are indicative, and the temperature of the steam passed by the high pressure bypass valve device as a function of the cold and high reheat temperature signals. Bypass device for a steam turbine comprising a device for adjusting the. 제1항에 있어서, 냉각류원(Source)을 포함하는 바이패스 증기온도 조절장치와, 증기 바이패스 통로로 냉각류의 유입을 위한 고압 스프레이 밸브장치와, 고압 스프레이 밸브장치의 동작을 통제하기 위한 두 냉 및 고 가열온도에 반응하는 제어장치를 포함하는 것을 특징으로 한 증기 터어빈용 바이패스 장치.2. The apparatus of claim 1, further comprising: a bypass steam temperature control device comprising a source of cooling flow, a high pressure spray valve device for the inflow of cooling air into the vapor bypass passage, and two for controlling the operation of the high pressure spray valve device. Bypass device for a steam turbine, characterized in that it comprises a control device reacting to cold and high heating temperatures. 제2항에 있어서, 적응 설정점 신호를 발생하기 위한 냉 및 고재 가열온도 신호에 반응하는 적응설정점 회로를 포함하는 제어장치와, 냉재가열 온도신호와 스프레이밸브 장치의 동작을 통제하기 위한 출력신호를 제공하기 위한 적응 설정점 신호에 반응하는 스프레이 밸브 제어회로를 포함하는 것을 특징으로 한 증기 터어빈용 바이패스 장치.3. An apparatus according to claim 2, comprising a control device comprising an adaptive set point circuit responsive to cold and solid heating temperature signals for generating an adaptive set point signal, and an output signal for controlling the operation of the cold ash heating temperature signal and the spray valve device. Bypass device for a steam turbine comprising a spray valve control circuit responsive to an adaptive setpoint signal to provide a. 제3항에 있어서, 적응 설정점 회로는 제어장치를 포함하고, 기억장치는 증기 바이패스 동작 초기에 고재 가열온도 신호를 저장하도록 동작 가능하고, 상기 제어장치는 냉재 가열온도 신호에 반응하며 증기 바이 패스 동작의 개시에 앞서 적응 설정점을 선정하도록 그것의 온도 표시신호인 출력신호를 제공하며, 또한 제어장치는 실제 고재 가열온도와 저장된 고재 가열온도에 반응하여 증기 바이프새 동작 개시에 뒤이어 적응 설정점 출력신호를 제공하는 것을 특징으로 한 증기 터어빈용 바이패스 장치.4. The adaptive setpoint circuit of claim 3, wherein the adaptive setpoint circuit includes a control device, wherein the memory device is operable to store the solids heating temperature signal at the beginning of the steam bypass operation, the control device being responsive to the cold materials heating temperature signal. It provides an output signal, its temperature indication signal, to select an adaptive set point prior to commencement of the pass operation, and the control unit also responds to the actual solids heating temperature and the stored solids heating temperature in response to the start of the steam vibrating operation followed by the adaptive set point. A bypass device for a steam turbine, characterized by providing an output signal. 제4항에 있어서, 미리 결정된 온도값의 표시인 적어도 한 입력신호를 수신하는 장치를 가진 제어장치에 가해진 저장된 고재 가열온도 신호를 수정하기 위한 장치와, 저장된 고재 가열온도 신호와 입력신호 사이의 차이표시인 차이신호를 얻는 장치와 소정된 고재 가열온도 신호를 제공하기 위한 차이신호와 저장된 고재 가열 온도 신호를 더하는 장치와, 그리고 오직 증기 바이패스 동작중에만 점진적으로 경사진 차이 신호를 가하도록 동작 가능한 회로장치로서 더하는 장치로의 적용에 앞서 더하는 장치와 차이신호를 얻는 장치 사이에 있는 점진적으로 차이신호를 경사지게 하는 회로장치를 포함하는 것을 특징으로 한 증기 터어빈용 바이패스 장치.5. A device according to claim 4, wherein the device for modifying the stored solids heating temperature signal applied to a control device having at least one input signal indicative of a predetermined temperature value and the stored solids heating temperature signal and the input signal. A device for obtaining an indication difference signal, a device for adding a difference signal for providing a predetermined ash heating temperature signal and a stored ash heating temperature signal, and operable to apply a progressively sloped difference signal only during steam bypass operation A bypass device for a steam turbine, comprising a circuit device for gradually inclining the difference signal between the adding device and the device for obtaining the difference signal prior to application to the adding device as the circuit device. 제3항에 있어서, 냉재가열 온도신호와 적응설정점 신호를 입력 신호들로서 수신하고 터어빈이 동작모우드에 있을 때 두 입력 신호에서의 불균형에 반응하는 제1 응답시간을 갖는 제1 비례양 적분제어기와, 냉재 가열 온도 신호와 적응설정점 신호를 입력신호들로서 수신하고 시동모우드에 터어빈이 있을 때 제2 느린 응답시간을 가지는 제2 비례양 적분 제어기와, 그리고 증기 바이패스 동작에서만 가능하게 되며 제어기들의 하나를 동작 제어를 위해 선택하는 장치를 포함하는 것을 특징으로 한 증기 터어빈용 바이패스 장치.4. The controller of claim 3, further comprising: a first proportional quantity integrating controller having a first response time receiving the cold heating temperature signal and the adaptive set point signal as input signals and reacting to an imbalance in the two input signals when the turbine is in the operating mode; A second proportional integral controller that receives the cold heating temperature signal and the adaptive setpoint signal as input signals and has a second slow response time when there is a turbine in the starting mode, and is only possible in steam bypass operation; Bypass device for steam turbine comprising a device for selecting for the operation control. 제6항에 있어서, 추적될 가해준 신호에 응답하기 위해 제2 동작모우드에서 동작 가능하고 제어기 입력 신호들에 반응하는 출력신호를 제공하기 위하여 제1 동작 모우드에서 동작가능한 제어기의 출력신호를 추적될 신호로 제공하기 위한 장치와 제어기 입력신호들의 합의 반인 출력신호를 제공하는 가산회로를 포함하는 스프레이 밸브 제어 회로와, 가산회로의 입력신호로서 가해준 제어기들의 출력신호와, 스프레이 밸브장치의 동작을 통제하기 위한 가산회로의 출력신호를 갖는 것을 특징으로 한 증기 터어빈용 바이패스 장치.7. The method of claim 6, wherein the output signal of the controller operable in the first operating mode is provided to provide an output signal operable in the second operating mode and responsive to the controller input signals in response to the applied signal to be tracked. A spray valve control circuit comprising an apparatus for providing as a signal and an adder circuit providing an output signal that is half the sum of the controller input signals, an output signal of the controllers applied as an input signal of the adder circuit, and controlling the operation of the spray valve apparatus. Bypass apparatus for a steam turbine, characterized in that it has an output signal of the addition circuit for. 제1항에 있어서, 증기류에 독립한 요구된 드로틀 압력 설정점 신호를 발생하기 위한 장치를 가진 고압 바이패스 밸브장치를 제어하기 위한 장치와, 실제드로틀 압력신호를 제공하기 위한 증기 발생기의 드로틀 압력을 측정하기 위한 장치와, 그리고 실제드로틀 압력신호와 요구된 드로틀 압력 설정점 신호의 함수로 밸브장치의 동작을 통제하기 위한 제어장치를 포함하는 것을 특징으로 하는 바이패스 장치.2. The apparatus for controlling a high pressure bypass valve device having a device for generating a desired throttle pressure set point signal independent of steam flow, and the throttle pressure of the steam generator for providing an actual throttle pressure signal. And a control device for controlling the operation of the valve device as a function of the actual throttle pressure signal and the required throttle pressure set point signal. 제8항에 있어서, 증기 터어빈의 정상 비 바이패스 운전동작 중에, 제어장치는 증기터어빈을 개방시키도록 동작가능하며, 실제 드로틀 압력신호가 요구된 드로틀 압력 설정점 신호에 바이아스 값을 더한 것과 같을 때는 바이패스 밸브장치를 개방하도록 동작가능한 제어장치를 갖는 것을 특징으로 한 증기 터어빈용 바이패스 장치.10. The apparatus of claim 8, wherein during normal non-bypass operation of the steam turbine, the control unit is operable to open the steam turbine, such that the actual throttle pressure signal adds a bias value to the required throttle pressure set point signal. A bypass device for the steam turbine, characterized in that it has a control device operable to open the bypass valve device. 제9항에 있어서, 바이아스값은 상수값인 것을 특징으로 한 증기 터어빈용 바이패스 장치.10. The bypass unit for steam turbines according to claim 9, wherein the bias value is a constant value. 제9항에 있어서, 바이아스 값은 요구된 드로틀 압력 설정점 신호의 미리 결정된 백분율이라는 것을 특징으로 한 증기 터어빈용 바이패스 장치.10. The bypass apparatus of claim 9, wherein the bias value is a predetermined percentage of the required throttle pressure set point signal. 제8항에 있어서, 요구된 드로틀 압력 설정점 신호는 증기 발생기 부하의 함수로 산출된다는 것을 특징으로 한 증기 터어빈용 바이패스 장치.9. The bypass unit of claim 8, wherein the required throttle pressure set point signal is calculated as a function of steam generator load. 제9항에 있어서, 제1 응답시간을 갖고 바이아스값에 더한 요구된 드로틀 압력 설정점 신호 및 실제 드로틀 압력 신호를 수신하는 제1 비례양 적분제어기와, 제2 늦은 응답시간을 갖고 바이아스가 없는 요구된 드르틀 압력 설정점 신호와 실제 드로틀 압력신호를 수신하기 위한 제2 비례양 적분 제어기와, 제어동작을 위한 제어기들의 하나를 선택하기 위한 장치를 가지는 것을 특징으로 한 증기 터어빈용 바이패스 장치.10. The apparatus of claim 9, further comprising: a first proportional amount integral controller having a first response time and receiving a desired throttle pressure set point signal and an actual throttle pressure signal in addition to a bias value; Bypass apparatus for a steam turbine characterized in that it has a second proportional amount integral controller for receiving a desired throttle pressure setpoint signal and an actual throttle pressure signal, and a device for selecting one of the controllers for the control operation. . 제13항에 있어서, 각 제어기는 제어기의 입력 신호들에 응답하여 출력신호를 제공하며 제1동작 모우드에서 동작가능하고 추적될 가해진 신호에 응답하는 제2동작모우드에서 동작가능한 형이고, 제어장치는 추적될 신호로서 각 한 제어기의 출력신호를 다른 제어기에 제공하는 장치를 포함하며, 가산회로는 그입력의 합의 반인 출력신호를 제공하고, 제어기들의 출력신호는 가산회로의 입력신호로 가해주며, 그리고 가산회로의 출력신호는 밸브장치의 동작을 통제한다는 것을 특징으로 한 증기 터어빈용 바이패스 장치.14. The controller of claim 13, wherein each controller provides an output signal in response to input signals of the controller and is operable in a second operating mode that is operable in the first operating mode and in response to an applied signal to be tracked. A device for providing the output signal of each controller to the other controller as a signal to be traced, the adder circuit providing an output signal that is half the sum of its inputs, the output signal of the controllers being applied to the input signal of the adder circuit, and The bypass signal for the steam turbine, characterized in that the output signal of the addition circuit controls the operation of the valve device. 제9항에 있어서, 출력제어신호를 제공하기 위한 제2 신호와 실제 드로틀 압력 신호를 수신하기 위한 단일 비례양 적분제어기와, 터어빈이 제1동작 조건에 있을 때 제2 신호로서 요구된 드로틀 압력 설정점 신호를 선택하고 터어빈이 제2 동작조건에 있을 때는 요구된 드로틀 압력 설정점 신호에 어떤 바이아스 값을 더한 것을 선택하는 장치와, 출력제어신호에 반응하여 밸브장치를 개폐시키기 위한 밸브작동 장치와, 출력제어신호를 우선시키고 우선신호를 밸브작동장치로 공급하여 밸브장치를 어떤 미리 결정된 위치까지 열도록 하는 장치를 포함하는 것을 특징으로 한 증기 터어빈용 바이패스 장치.10. A throttle pressure setting as claimed in claim 9, wherein a single proportional amount integral controller for receiving a second signal for providing an output control signal and an actual throttle pressure signal and a second signal when the turbine is in a first operating condition A device for selecting a point signal and selecting a bias value for the required throttle pressure set point signal when the turbine is in the second operating condition; a valve operating device for opening and closing the valve device in response to an output control signal; And a device for prioritizing the output control signal and supplying the priority signal to the valve operation device to open the valve device to a predetermined position. 제15항에 있어서, 단일 제어기는 입력신호들에 반응하여 출력제어신호를 공급하기 위한 제1 동작모우드에서 동작 가능하고 추적되고 포함하는 가해준 신호에 응답하기 위한 제2 동작모우드에서 동작 가능한 타입이며 또한 제어장치는 밸브장치가 미리 결정된 최대위치에 도달했을 때 제거되는 우선신호를 공급하여 신호제어기에 추적될 신호로서 공급하는 장치를 포함한다는 것을 특징으로 한 증기 터어빈용 바이패스 장치.16. The method of claim 15, wherein the single controller is of a type operable in a second operating mode for responding to an applied signal that is operable and tracked and includes in response to input signals for supplying an output control signal. And the control device includes a device for supplying a priority signal to be removed when the valve device reaches a predetermined maximum position and supplying it as a signal to be tracked to the signal controller. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR8204329A 1981-09-25 1982-09-25 Turbine high pressure bypass temperature control system and method Expired KR890001727B1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US30518 1981-09-25
US06/305,814 US4455836A (en) 1981-09-25 1981-09-25 Turbine high pressure bypass temperature control system and method
US305814 1981-09-25
US06/305,813 US4448026A (en) 1981-09-25 1981-09-25 Turbine high pressure bypass pressure control system
US305813 1981-09-25

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ES515860A0 (en) 1983-10-16
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FR2513694A1 (en) 1983-04-01
KR890001727B1 (en) 1989-05-19
MX156664A (en) 1988-09-22
ES8400535A1 (en) 1983-10-16
FR2513694B1 (en) 1986-02-07
BR8205446A (en) 1983-08-23
GB2107403A (en) 1983-04-27

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