KR20040100580A - Turbine sealing steam supply Method and apparatus for shortening starting time of complex thermal power plant - Google Patents
Turbine sealing steam supply Method and apparatus for shortening starting time of complex thermal power plant Download PDFInfo
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- KR20040100580A KR20040100580A KR1020030032991A KR20030032991A KR20040100580A KR 20040100580 A KR20040100580 A KR 20040100580A KR 1020030032991 A KR1020030032991 A KR 1020030032991A KR 20030032991 A KR20030032991 A KR 20030032991A KR 20040100580 A KR20040100580 A KR 20040100580A
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- 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
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
- F01D11/10—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using sealing fluid, e.g. steam
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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
- F01K13/00—General layout or general methods of operation of complete plants
- F01K13/02—Controlling, e.g. stopping or starting
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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
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
- F01K17/04—Using steam or condensate extracted or exhausted from steam engine plant for specific purposes other than heating
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- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Control Of Turbines (AREA)
Abstract
Description
본 발명은 복합화력발전소의 증기터빈에 봉입용 증기를 공급하기 위한 방범 및 장치에 관한 것으로서, 특히 복합화력발전소 초기 기동시 증기터빈의 터빈 샤프트 실링부에 봉입용 증기를 신속하게 공급함으로써 초기 기동시간을 단축시킨 복합화력발전소의 기동시간 단축을 위한 증기터빈 봉입 증기 공급 방법 및 장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a security and an apparatus for supplying encapsulation steam to a steam turbine of a combined cycle power plant. In particular, an initial startup time is provided by rapidly supplying encapsulation steam to a turbine shaft sealing part of a steam turbine during initial startup of a combined cycle power plant. The present invention relates to a steam turbine-enclosed steam supply method and apparatus for shortening the start-up time of a combined cycle power plant.
첨부도면 도 1에 도시된 바와 같이, 복합화력발전소는, 연료의 연소에 의한 열에너지를 가스 터빈에서 회전력으로 변환시키고, 이 회전력으로 발전기를 구동시켜 전력을 생산하는 한편, 상기 가스 터빈에서 배출되는 고온의 배기가스를 회수하여 배열회수보일러(HRSG, Heat Recovery Steam Generator)에서 증기를 발생시키며, 보일러에서 발생된 증기를 이용하여 증기터빈과 발전기를 구동시켜 전력을 생산한다.As shown in FIG. 1, a combined cycle power plant converts thermal energy from combustion of fuel into rotational force in a gas turbine, drives a generator to generate electric power, and generates high power while being discharged from the gas turbine. Heat recovery steam generator (HRSG) generates steam by recovering the exhaust gas from the exhaust gas, and generates steam by driving steam turbine and generator using steam generated from the boiler.
이와 같은 복합화력발전소에 있어서의 증기터빈은, 터빈 샤프트 양단부를 밀봉하기 위하여 샤프트와 케이싱 사이에 요철식의 패킹(Packing)을 형성하고 있다.In such a combined cycle power plant, the steam turbine forms an uneven packing between the shaft and the casing in order to seal both ends of the turbine shaft.
증기터빈 운전시 터빈 내부는 고압을 유지하고 있으나, 상기한 패킹의 요철부를 지나면서 급격한 압력강하가 발생하고, 패킹의 최외단측에서는 대기압보다 저압이 유도되어 샤프트와 패킹 사이로 외부의 공기가 유입되는 현상이 발생한다.While operating the steam turbine, the turbine maintains a high pressure, but a sudden pressure drop occurs as the uneven portion of the packing passes, and at the outermost side of the packing, a lower pressure than the atmospheric pressure is induced so that outside air flows between the shaft and the packing. This happens.
따라서, 종래에는 운전시 외부로부터 들어오는 공기를 막기 위하여 실링부 중간의 케이싱과 패킹에 구멍을 뚫어, 이 구멍에 공급라인을 연결하고, 이 공급라인을 통하여 터빈 샤프트와 패킹 사이에 소량의 실링(Sealing)용 증기를 공급해 주도록 되어 있다.Therefore, conventionally, a hole is formed in the casing and the packing in the middle of the sealing part to prevent air from coming in during operation, and a supply line is connected to the hole, and a small amount of sealing between the turbine shaft and the packing is provided through the supply line. It is supposed to supply steam for).
실링용 증기는 대기압 보다 낮기 때문에, 외부의 공기가 틈새를 타고 터빈 내부로 유입되더라도 상기 실링부 중간에서 터빈측으로부터 누출되는 증기와 함께 실링용 증기 공급라인으로 배출되고, 이 공급라인으로 배출되는 증기와 공기를 응축기에서 응축시켜 외부로 배출하도록 되어 있다.Since the sealing steam is lower than atmospheric pressure, even if the outside air flows into the turbine through the gap, the steam is discharged to the sealing steam supply line together with the steam leaking from the turbine side in the middle of the sealing portion, and the steam discharged to the supply line. And air are condensed in the condenser and discharged to the outside.
한편, 상기 실링용 증기는 증기터빈 구동 전에 증기터빈을 예열시키는 작용도 한다.On the other hand, the sealing steam also serves to preheat the steam turbine before driving the steam turbine.
그러나, 이와 같은 실링용 증기는, 증기터빈의 정상 운전상태에서는 증기터빈 자체에서 추기하여 공급할 수 있지만, 초기운전시에는 증기터빈 자체적으로 공급할 수 없어 봉입이 불가능하다. 이것은 복합화력발전소 초기 기동시 증기터빈의 운전기동시간과 밀접한 관계가 있다.However, such a sealing steam can be additionally supplied from the steam turbine in the normal operation state of the steam turbine, but cannot be sealed because it cannot be supplied by the steam turbine itself during the initial operation. This is closely related to the operating time of the steam turbine at the start of the combined cycle power plant.
즉, 종래의 방식으로는 외부에 터빈용 봉입증기를 사용할 수 있는 보조 보일러가 준비되거나 또한 인접발전소가 있으면 사용할수 있으나, 이의 사용이 불가능할 경우, 배열회수보일러(HRSG) 자체에서 증기를 발생시켜 일정한 조건이 되면 증기터빈용 봉입증기로 사용할 수 있다. 이와 같이 봉입용 증기로 사용하기 위한 일정한 조건이 될 때까지는 많은 시간이 소요되므로, 이로 인하여 증기터빈의 기동시간이 늦어진다.That is, in the conventional method, an auxiliary boiler that can use the steam in the turbine is prepared externally, or may be used if there is an adjacent power plant. However, if the use of the auxiliary boiler is not possible, the steam recovery is generated by the steam recovery boiler (HRSG) itself. Under conditions, it can be used as an enclosed steam for steam turbines. Thus, since it takes a lot of time to reach a constant condition for use as the encapsulation steam, this causes a slow start time of the steam turbine.
대부분 복합화력발전소는 보조 보일러가 없는 경우가 많다. 따라서, 봉입용 증기의 공급을 위해 보조 보일러를 설치하는 것은 경제적이지 못하기 때문에, 배열회수보일러에서 자체적으로 생성되는 증기가 증기터빈 봉입용으로 사용할 수 있는 조건까지 기다려서 사용한다.Most combined cycle power plants do not have auxiliary boilers. Therefore, since it is not economical to install an auxiliary boiler for supplying the steam for encapsulation, it is necessary to wait until the steam generated by the heat recovery boiler can be used for encapsulating the steam turbine.
그리고, 증기터빈의 부하가 40%정도 이상이 되면 증기터빈 자체의 추기증기를 봉입용 증기로 사용가능하다.In addition, when the load of the steam turbine is about 40% or more, the additional steam of the steam turbine itself can be used as the encapsulation steam.
종래에 있어서의 실링용 추기라인의 구성은, 도 2에 도시된 바와 같이, 배열회수보일러(10)의 중압 드럼(20)의 재열기(Reheater)(22) 출구부에서 별도의 추기라인(30)을 형성하고, 이 추기라인(30)의 일중간에 압력강하용 콘트롤밸브(40)를 설치하여 중압 드럼(20)으로부터 추기된 봉입용 증기를 증기 터빈의 실링부로 공급하도록 되어 있었다.In the conventional configuration of the sealing bleeding line, as shown in Figure 2, a separate bleeding line 30 at the outlet of the reheater 22 of the medium-pressure drum 20 of the heat recovery boiler 10 ), And a pressure drop control valve 40 is provided in the middle of the bleeding line 30 to supply the encapsulated steam extracted from the medium pressure drum 20 to the sealing portion of the steam turbine.
도 2에서 부재번호 50은 고압 드럼이고, 부재번호 52는 과열기(Superheater)이다.In FIG. 2, reference numeral 50 denotes a high pressure drum, and reference numeral 52 denotes a superheater.
그러나, 위와 같이 중압 드럼(20)부에서 압력강하용 콘트롤밸브(40)를 사용하고, 재열기(22)를 통하여 온도 과승된 증기의 온도를 적정온도로 맞추기 위해 냉각수를 분사하기도 하는 등, 증기 터빈에서 사용될 실링용 증기 조건이 될때까지 기다려야 하기 때문에, 증기터빈의 기동시간이 늦어지게 되고, 그에 따라 복합화력발전소의 특징인 디디에스(DDS, Daily Start Stop)에 빠르게 대응할 수 없었고, 발전소 효율이 저하되는 문제가 발생하였다.However, using the pressure drop control valve 40 in the medium-pressure drum 20 as described above, and the like to inject the cooling water to adjust the temperature of the steam heated up to the appropriate temperature through the reheater 22, Since it is necessary to wait for the sealing steam condition to be used in the turbine, the starting time of the steam turbine is delayed, and thus, it is not possible to respond quickly to the daily start stop (DDS) characteristic of the combined cycle power plant, and the plant efficiency is reduced. There was a problem of deterioration.
본 발명은 상기와 같은 종래의 문제를 해결하기 위하여 개발된 것으로서, 복합화력발전소의 증기 터빈 초기 기동시 소요되는 시간을 줄임으로써, 복합화력발전의 특징인 빈번한 기동 및 정지에 보다 신속하게 응대할 수 있는 복합화력발전소의 기동시간 단축을 위한 증기터빈 봉입 증기 공급 방법 및 장치를 제공하는 것을 목적으로 한다.The present invention was developed to solve the conventional problems as described above, and by reducing the time required for the initial start-up of the steam turbine of the combined cycle power plant, it is possible to respond more quickly to the frequent starting and stopping characteristic of the combined cycle power plant An object of the present invention is to provide a steam turbine-enclosed steam supply method and apparatus for shortening the start-up time of a combined cycle power plant.
도 1은 일반적인 복화력발전소의 계통도1 is a schematic diagram of a typical double power plant
도 2는 종래의 증기터빈 봉입 증기 공급 시스템을 나타내는 계통도2 is a system diagram showing a conventional steam turbine enclosed steam supply system.
도 3은 본 기술에 의한 봉입 증기 공급 시스템을 나타내는 계통도Figure 3 is a system diagram showing a sealed steam supply system according to the present technology
<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>
10 : 배열회수보일러 20 : 중압드럼10: array recovery boiler 20: medium pressure drum
22 : 재열기 30 : 제2추기라인22: reheater 30: second extraction line
40,106 : 압력강하밸브 50 : 고압드럼40,106: Pressure drop valve 50: High pressure drum
52 : 과열기 100 : 제2 추기라인52: superheater 100: second cardinal line
102 : 공급관 104 : 보조증기헤더102: supply pipe 104: auxiliary steam header
106 : 압력강하밸브 108 : 전기히터106: pressure drop valve 108: electric heater
상술한 목적을 달성하기 위하여, 본 발명에 따른 복합화력발전소의 기동시간 단축을 위한 증기터빈 봉입 증기 공급 방법은, 복합화력발전소 초기 기동시에 고압 드럼의 증기 출구부로부터 일부의 증기를 추기하여 증기터빈의 터빈축과 패킹이 이루는 실링부로 봉입용 증기를 최초로 공급하는 단계; 상기 단계 이후 중압 드럼측의 증기 조건이 예설정된 조건에 이르면 상기 고압 드럼으로부터의 추기 라인을 폐쇄하고, 상기 중압 드럼측의 재열기 출구부로부터 일부의 증기를 추기하여 증기터빈의 실링부로 봉입용 증기를 공급하는 단계; 및 상기 단계 후 증기터빈의 부하가 설정치를 초과하면 상기 중압 드럼측으로부터의 추기라인도 폐쇄하고 증기터빈에서 자체적으로 추기하여 증기터빈의 실링부로 봉입용 증기를 공급하는 단계를 포함하는 것을 특징으로 한다.In order to achieve the above object, the steam turbine enclosed steam supply method for shortening the startup time of the combined cycle power plant according to the present invention, the steam turbine by extracting a part of steam from the steam outlet of the high-pressure drum during the initial startup of the combined cycle power plant Supplying steam for the first time into the sealing portion formed by the turbine shaft and the packing; After the step, when the steam condition on the medium pressure drum side reaches a predetermined condition, the bleeding line from the high pressure drum is closed, and a part of steam is extracted from the reheater outlet on the medium pressure drum side to encapsulate the steam for sealing to the steam turbine. Supplying; And after the step, if the load of the steam turbine exceeds the set value, closing the bleeding line from the medium pressure drum side and additionally bleeding itself in the steam turbine to supply encapsulation steam to the sealing portion of the steam turbine. .
한편, 복합화력발전소의 기동시간 단축을 위한 증기터빈 봉입 증기 공급 장치는, 과열기로 보내지는 고압 드럼의 출구부로부터 별도의 제1 추기 라인을 형성하고, 이 제1 추기라인의 말단에 증기터빈의 실링부로 연결되는 공급관이 구비된 보조증기헤드를 설치하며, 상기 고압 드럼의 출구측과 상기 보조증기헤드 사이의제1 추기라인에 제1 압력강하밸브를 설치하고, 중압드럼의 재열기 출구측으로부터 별도의 제2 추기라인을 형성함과 아울러 제2 추기라인의 말단부를 상기 보조증기헤드에 연결하며, 상기 중압드럼의 재열기 출구측과 상기 보조증기헤드 사이의 제2 추기라인에 제2 압력강하밸브를 설치하여 구성되는 것을 특징으로 한다.On the other hand, the steam turbine enclosed steam supply device for shortening the startup time of the combined cycle power plant forms a separate first extraction line from the outlet of the high-pressure drum sent to the superheater, and at the end of the first extraction line A secondary steam head having a supply pipe connected to a sealing part is installed, and a first pressure drop valve is installed at a first bleed line between the outlet side of the high pressure drum and the secondary steam head, and from the reheater outlet side of the medium pressure drum. A second pressure drop is formed on the second extraction line between the auxiliary steam head and the reheater outlet side of the medium pressure drum while forming a separate second extraction line and connecting the distal end of the second extraction line to the auxiliary steam head. Characterized in that the valve is installed.
여기서, 상기 제1추기라인에는 봉입 증기의 온도를 맞추기 위한 전기히터를 구비할 수 있다.Here, the first extraction line may be provided with an electric heater for adjusting the temperature of the enclosed steam.
이하, 첨부도면을 참조하여 본 발명의 바람직한 실시예를 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
첨부도면 도 3에는 본 발명에 따른 복합화력발전소의 기동시간 단축을 위한 증기터빈 봉입 증기 공급 장치의 계통도가 도시되어 있다.3 is a schematic diagram of a steam turbine-enclosed steam supply device for shortening the startup time of a combined cycle power plant according to the present invention.
종래에 있어서와 동일한 구성요소에 대하여는 동일한 참조부호를 부여하며, 그 반복되는 설명은 생략한다.The same reference numerals are given to the same components as in the prior art, and repeated description thereof will be omitted.
도 3에 도시된 바와 같이, 본 발명은, 과열기(52)로 보내지는 고압 드럼(50)의 출구측으로부터 별도의 제1 추기 라인(100)이 형성되고, 이 추기라인(100)의 말단에 증기터빈의 터빈축과 패킹이 이루는 실링부로 연결되는 공급관(102)이 구비된 보조증기헤드(104)가 설치된다.As shown in FIG. 3, in the present invention, a separate first extraction line 100 is formed from an outlet side of the high pressure drum 50 sent to the superheater 52, and is formed at the end of the extraction line 100. Auxiliary steam head 104 is provided with a supply pipe 102 connected to the sealing portion of the turbine shaft and the packing of the steam turbine.
또한, 상기 고압 드럼(50)의 출구측과 상기 보조증기헤드(104) 사이의 제1 추기라인(100)에 제1 압력강하밸브(106)가 설치된다. 복합화력발전소의 최초 기동시에는 상기 제1 추기라인(100)을 이용하여 봉입증기를 공급한다.In addition, a first pressure drop valve 106 is installed at the first bleed line 100 between the outlet side of the high pressure drum 50 and the auxiliary steam head 104. At the first start of the combined cycle power plant, the encapsulated steam is supplied using the first bleed line 100.
한편, 중압드럼(20)의 재열기(22) 출구측으로부터 별도의 제2 추기라인(30)이 형성되며, 그의 말단부는 상기 보조증기헤드(104)에 연결된다. 또한, 상기 중압드럼(20)의 재열기(22) 출구측과 상기 보조증기헤드(104) 사이의 제2 추기라인(30)에는 제2 압력강하밸브(40)가 설치된다.On the other hand, a separate second bleed line 30 is formed from the outlet side of the reheater 22 of the medium pressure drum 20, and its distal end is connected to the auxiliary steam head 104. In addition, a second pressure drop valve 40 is installed in the second bleed line 30 between the outlet side of the reheater 22 of the medium pressure drum 20 and the auxiliary steam head 104.
여기서, 상기 제1추기라인(100)에는 봉입 증기의 온도를 맞추기 위한 전기히터(108)를 구비한다.Here, the first extraction line 100 is provided with an electric heater 108 for adjusting the temperature of the enclosed steam.
상기와 같이 구성된 본 발명에 따라 증기터빈에 봉입용 증기를 공급하는 과정을 설명한다.According to the present invention configured as described above will be described the process of supplying the steam for the enclosed steam turbine.
먼저, 복합화력발전소 초기 기동시에는, 제1 추기라인(100)의 압력강하밸브(106)를 개방시키고 제2 추기라인(30)의 압력강하밸브(40)는 폐쇄시켜, 과열기(52)로 보내지기 전의 다소 낮은 온도의 증기를 제1 추기라인(100)을 통하여 증기터빈의 터빈 샤프트와 패킹이 이루는 실링부로 공급한다.First, at the initial start of the combined cycle power plant, the pressure drop valve 106 of the first bleed line 100 is opened and the pressure drop valve 40 of the second bleed line 30 is closed to the superheater 52. The steam at a somewhat lower temperature before being sent is supplied to the sealing portion formed by the turbine shaft and the packing of the steam turbine through the first bleed line 100.
즉, 제1 추기라인(100)으로 유입된 증기는 전기히터(108)를 경유하면서 봉입증기의 조건에 맞게 승온되며, 이후 압력강하밸브(106)를 경유하면서 압력이 떨어진 상태로 보조증기헤더(104)로 유입된 다음 공급관(102)을 통하여 증기터빈의 실링부로 공급된다.That is, the steam introduced into the first bleed line 100 is heated in accordance with the conditions of the enclosed steam while passing through the electric heater 108, and then the auxiliary steam header (a state in which the pressure drops while passing through the pressure drop valve 106). 104 is then supplied to the sealing portion of the steam turbine through the supply pipe 102.
이와 같이 하면, 중압드럼(20)측의 증기 조건이 봉입용 증기 조건에 이르기 까지 기다릴 필요없이 신속하게 봉입용 증기를 공급할 수 있다.In this way, the steam for encapsulation can be supplied quickly, without having to wait until the steam condition on the medium pressure drum 20 side reaches the encapsulation steam condition.
이후, 상기 중압 드럼(20)측 즉, 재열기(22) 출구측의 증기 조건이 예설정된 조건에 이르면 고압에서 중압으로 봉입용 증기의 소스를 바꾸기 위해 제2추기라인(30)을 보조증기헤더(104)에 연결한다.Subsequently, when the steam condition on the medium pressure drum 20 side, that is, the outlet side of the reheater 22 reaches a predetermined condition, the second steam extraction line 30 is changed to a secondary steam header to change the source of the steam for encapsulation from high pressure to medium pressure. (104).
즉, 상기 압력강하밸브(106)를 폐쇄시켜 고압 드럼(50)으로부터의 제1 추기 라인(100)을 폐쇄함과 동시에, 상기 압력강하밸브(40)를 개방시켜 상기 중압 드럼(20)측으로부터의 제2 추기 라인(30)을 통하여 증기터빈의 실링부로 봉입용 증기를 공급한다.That is, the pressure drop valve 106 is closed to close the first bleed line 100 from the high pressure drum 50 and the pressure drop valve 40 is opened to open the pressure drop valve 20 from the side. The steam for sealing is supplied to the sealing portion of the steam turbine through the second bleed line 30 of the.
이때 제2 추기라인(30)으로 유입된 증기는 압력강하밸브(40)를 경유하면서 압력이 떨어진 상태로 보조증기헤더(104)로 유입된 다음 공급관(102)을 통하여 증기터빈의 실링부로 공급된다.At this time, the steam introduced into the second bleed line 30 is introduced into the auxiliary steam header 104 in a state where the pressure is dropped while passing through the pressure drop valve 40 and then supplied to the sealing portion of the steam turbine through the supply pipe 102. .
상기한 과정 후, 증기터빈의 부하가 설정치, 예를들어 40% 를 초과하게 되면, 상기 중압 드럼(20)측으로부터의 제2 추기라인(30)도 폐쇄시키고, 증기터빈의 자체 추기 증기로 증기터빈의 실링부로 봉입용 증기를 공급하게 된다.After the above process, if the load of the steam turbine exceeds the set value, for example 40%, the second bleed line 30 from the medium pressure drum 20 side is also closed, and the steam with its own bleed steam of the steam turbine Supplying steam to the sealing portion of the turbine is supplied.
이상 설명한 바와 같이, 본 발명은, 복합화력발전소의 증기 터빈 초기 기동시 소요되는 시간을 줄임으로써 복합화력발전의 특징인 빈번한 기동 및 정지에 보다 신속하게 응대할 수 있으며, 그에 따라 발전소의 효율을 향상시킬 수 있다.As described above, the present invention can reduce the time required for the initial start-up of the steam turbine of the combined cycle power plant to respond more frequently to frequent start-ups and stops, which are the characteristics of the combined cycle power plant, thereby improving the efficiency of the power plant. You can.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101410391B1 (en) * | 2014-02-26 | 2014-06-20 | (주)이파워기술단 | Steam Turbine Power Plant for Thermal Power Generation |
| KR101435368B1 (en) * | 2014-02-27 | 2014-08-28 | (주)이파워기술단 | Apparatus for condensing steam in turbine power generation system |
| JP2017040201A (en) * | 2015-08-19 | 2017-02-23 | 株式会社東芝 | Power generation system and operation method for same |
-
2003
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101410391B1 (en) * | 2014-02-26 | 2014-06-20 | (주)이파워기술단 | Steam Turbine Power Plant for Thermal Power Generation |
| KR101435368B1 (en) * | 2014-02-27 | 2014-08-28 | (주)이파워기술단 | Apparatus for condensing steam in turbine power generation system |
| JP2017040201A (en) * | 2015-08-19 | 2017-02-23 | 株式会社東芝 | Power generation system and operation method for same |
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