KR200441902Y1 - An atmosphere emission steam recovery apparatus of condensation water exhaust system - Google Patents

An atmosphere emission steam recovery apparatus of condensation water exhaust system Download PDF

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KR200441902Y1
KR200441902Y1 KR2020070015931U KR20070015931U KR200441902Y1 KR 200441902 Y1 KR200441902 Y1 KR 200441902Y1 KR 2020070015931 U KR2020070015931 U KR 2020070015931U KR 20070015931 U KR20070015931 U KR 20070015931U KR 200441902 Y1 KR200441902 Y1 KR 200441902Y1
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South Korea
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condenser
pipe
steam
receiver tank
power plant
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KR2020070015931U
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Korean (ko)
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김용찬
김성준
구재량
최효상
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한국전력공사
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
    • F22D1/50—Feed-water heaters, i.e. economisers or like preheaters incorporating thermal de-aeration of feed-water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D5/00—Controlling water feed or water level; Automatic water feeding or water-level regulators
    • F22D5/26—Automatic feed-control systems
    • F22D5/34—Applications of valves

Abstract

본 고안은 복합화력발전소의 터빈 콘덴서 리시버 탱크에서 방출되는 대기 방출증기를 회수하여 발전소 열효율을 향상시키고 방출되는 증기로 인한 가시적 공해 및 소음공해 등을 억제한 복합화력발전소 응축수 배출시스템의 대기 방출증기 회수장치에 관한 것이다.The present invention recovers atmospheric emissions from the turbine condenser receiver tank of a combined cycle power plant, improving the thermal efficiency of the power plant, and recovering atmospheric emissions of the combined cycle power plant condensate discharge system that suppresses visible pollution and noise pollution from the emitted steam. Relates to a device.

이를 위해 본 고안은 복수펌프(1)를 갖춘 복수기(2)와 콘덴서 리시버 탱크(3)가 수위조절 밸브(4)를 구비한 응축수 배출배관(5)으로 연결되고, 대기방출 증기배관(6)을 갖춘 상기 콘덴서 리시버 탱크(3)의 배출 증기배관(7)은 복수기(2)의 복수펌프(1)에 연결되어 이루어진 복합화력발전소의 응축수 배출시스템에 있어서, 상기 콘덴서 리시버 탱크(3)의 대기방출 증기배관(6)에 차단밸브(8)를 설치하고, 이 대기방출 증기배관(6)은 압력 조절밸브(9)와 바이패스 밸브(10)를 갖춘 증기 회수배관(11)을 매개로 복수기(2)에 설치된 탈기배관(12)에 연결되어 이루어져 있다.To this end, the present invention is connected to the condenser water discharge pipe (5) having a condenser receiver tank (3) and a condenser receiver tank (3) having a plurality of pumps (1), and an atmospheric discharge steam pipe (6). The discharge steam pipe (7) of the condenser receiver tank (3) having a condensate discharge system of a combined cycle power plant, which is connected to the plurality of pumps (1) of the condenser (2), the atmosphere of the condenser receiver tank (3) A shutoff valve (8) is provided in the discharge steam pipe (6), and the air discharge steam pipe (6) is connected to the condenser by means of a steam recovery pipe (11) having a pressure regulating valve (9) and a bypass valve (10). It is connected to the degassing pipe (12) installed in (2).

Description

복합화력발전소 응축수 배출시스템의 대기 방출증기 회수장치{An atmosphere emission steam recovery apparatus of condensation water exhaust system}An atmosphere emission steam recovery apparatus of condensation water exhaust system

본 고안은 복합화력발전소의 터빈 콘덴서 리시버 탱크에서 방출되는 대기 방출증기를 회수하여 발전소 열효율을 향상시키고 방출되는 증기로 인한 가시적 공해 및 소음공해 등을 억제한 복합화력발전소 응축수 배출시스템의 대기 방출증기 회수장치에 관한 것이다.The present invention recovers atmospheric emissions from the turbine condenser receiver tank of a combined cycle power plant, improving the thermal efficiency of the power plant, and recovering atmospheric emissions of the combined cycle power plant condensate discharge system that suppresses visible pollution and noise pollution from the emitted steam. Relates to a device.

통상적으로 복합화력발전소 기동시 보일러에서 발생하는 고온, 고압의 증기가 터빈에 유입되기 전까지 증기배관을 예열하여 증기배관의 급격한 온도변화에 따른 열응력을 저감하고 증기배관 내에 고인 응축수에 의한 수충격현상을 방지하기 위해 응축수 배출시스템이 설치되어 있다.Normally, when the combined cycle power plant is started, the steam pipe is preheated until the high temperature and high pressure steam from the boiler is introduced into the turbine to reduce the thermal stress caused by the rapid temperature change of the steam pipe, and the water shock phenomenon caused by condensed water accumulated in the steam pipe. The condensate drainage system is installed to prevent this.

종래의 응축수 배출시스템은 발전소 기동 초기에 응축수 배출배관을 통해 배출되는 증기가 과열증기의 형태로 탱크로 유입되는데, 유입되는 증기의 열량이 너무 커서 복수펌프 출구에서 공급되는 분사되는 물(Spray Water) 양으로는 유입증기를 응축시킬 수 없어 유입되는 증기뿐만 아니라 복수펌프에서 공급되어 분사되는 물까지도 증발되어 대기로 직접 방출되고 있는 실정이다.In the conventional condensate discharge system, the steam discharged through the condensate discharge pipe is introduced into the tank in the form of superheated steam at the beginning of the power plant startup, and the heat of the introduced steam is so large that the sprayed water is supplied from the plurality of pump outlets. Since the amount of inlet steam cannot be condensed, not only the incoming steam but also the water supplied from the plural pumps is evaporated and discharged directly into the atmosphere.

즉 종래에는 도 2에 도시된 바와 같이 복수기(2)에서 발생한 증기는 응축수 배출배관(5)을 통하여 콘덴서 리시버 탱크(3)로 유입되는데, 이때 증기는 과열증기 상태로 이 콘덴서 리시버 탱크(3) 내로 유입되고, 복수기(2)의 복수펌프(1)에서 공급되는 분사물까지 증발시키어 대기방출 증기배관(6)을 통하여 대기로 직접 방출된다.That is, conventionally, as shown in FIG. 2, steam generated in the condenser 2 flows into the condenser receiver tank 3 through the condensate discharge pipe 5, wherein the steam is in the superheated steam state. It is introduced into the container, and is evaporated to the injection material supplied from the plurality of pumps 1 of the condenser 2 and discharged directly to the atmosphere through the air discharge steam pipe 6.

이렇게 대기방출 증기배관(6)을 통하여 배출증기가 대기로 직접 방출됨에 따라 주변에 가시공해와 소음공해를 유발시키어 민원을 발생하며, 또한 값비싼 에너지가 낭비되는 문제점 등을 지니고 있었다.Thus, as the exhaust steam is directly discharged to the atmosphere through the air discharge steam pipe (6), it causes civil pollution by causing visible pollution and noise pollution in the surroundings, and also had problems such as expensive energy wasted.

이에 본 고안은 상기와 같은 종래 문제점을 해결하기 위해 안출된 것으로, 보일러에서 발생하는 고온·고압의 증기가 콘덴서 리시버 탱크의 대기방출 증기배관을 통하여 외기로 빠져나가기 전에 이 증기를 회수하여 발전소의 열효율을 높히고, 증기로 인한 가시적 소음과 소음공해 등을 예방하는 복합화력발전소 응축수 배출시스템의 대기 방출증기 회수장치를 제공함에 그 목적이 있다.Therefore, the present invention was devised to solve the conventional problems as described above, and the high temperature and high pressure steam generated in the boiler recovers this steam before exiting to the outside air through the air discharge steam pipe of the condenser receiver tank, thereby improving the thermal efficiency of the power plant. The purpose of the present invention is to provide an atmospheric emission steam recovery device for a condensate discharge system of a combined cycle power plant that increases the pressure and prevents visible noise and noise pollution caused by steam.

상기와 같은 목적을 달성하기 위한 본 고안은 복수펌프를 갖춘 복수기와 콘덴서 리시버 탱크가 수위조절 밸브를 구비한 응축수 배출배관으로 연결되고, 대기 방출 증기배관을 갖춘 상기 콘덴서 리시버 탱크의 배출 증기배관은 복수기의 복수펌프에 연결되어 이루어진 복합화력 발전소 응축수 배출시스템에 있어서, 상기 콘덴서 리시버 탱크의 대기방출 증기배관에 차단밸브를 설치하고, 이 대기방출 증기배관은 압력 조절밸브와 바이패스 밸브를 갖춘 증기 회수배관을 매개로 복수기에 설치된 탈기배관에 연결되어 이루어진 구조로 되어 있다.The present invention for achieving the above object is a condenser receiver tank having a plurality of pumps and condenser receiver tank is connected to the condensate discharge pipe having a water level control valve, the exhaust steam pipe of the condenser receiver tank having an air discharge steam pipe is a condenser In a combined cycle power plant condensate drainage system consisting of a plurality of pumps, a shutoff valve is installed in the air discharge steam pipe of the condenser receiver tank, and the air discharge steam pipe is a steam recovery pipe having a pressure control valve and a bypass valve. It has a structure that is connected to the degassing pipe installed in the condenser via the.

상기와 같은 본 고안에 따른 복합화력발전소 응축수 배출시스템의 대기 방출증기 회수장치는 다음과 같은 효과를 갖는다.The air discharge steam recovery apparatus of the combined cycle power plant condensate discharge system according to the present invention has the following effects.

①, 증기의 대기방출로 인한 가시증기 차단에 의한 민원해소.①, Complaints by blocking visible steam caused by the release of atmospheric air.

②, 증기의 대기방출로 발생하는 소음감소로 법적 규제치 준수.②, compliance with legal regulations due to noise reduction caused by the release of steam to the air.

③, ①과②에 관련 친환경 발전소로서의 이미지 제고.Enhancement of image as an eco-friendly power plant related to ③, ① and ②.

④, 대기로 방출되는 증기를 회수함으로써 버려지는 열에너지의 흡수.④ Absorption of thermal energy that is discarded by recovering steam released to the atmosphere.

⑤, 대기로 방출되는 증기를 회수함으로써 증기생산에 필요한 원수절감.⑤ Reduction of raw water required for steam production by recovering steam released to the atmosphere.

⑥, 용존산소 제거 및 순수 생산에 필요한 수처리 약품(N2H4 : 하이드라진) 투입량 절감.⑥, the input amount of water treatment chemicals (N 2 H 4 : hydrazine) required to remove dissolved oxygen and pure water production.

⑦, 보일러수의 용존산소 허용기준치에 도달하는 시간을 단축시켜 설비 수명연장에 기여.⑦ Shorten the time to reach the dissolved oxygen limit of boiler water, contributing to the extension of equipment life.

이하, 본 고안을 첨부된 예시도면에 의거 상세히 설명한다.Hereinafter, the present invention will be described in detail based on the accompanying drawings.

도 1은 본 고안이 복합화력발전소의 응축수 배출시스템에 적용된 상태를 보여준 배관 구성도이다.1 is a piping configuration showing a state of the present invention applied to the condensate discharge system of the combined cycle power plant.

본 고안의 설명에 앞서 도 2에 도시된 종래 응축수 배출시스템과 동일한 부분은 동일한 참조부호를 부기하여 설명한다.Prior to the description of the present invention, the same parts as the conventional condensate discharge system shown in FIG. 2 will be described with the same reference numerals.

본 고안은 복수펌프(1)를 갖춘 복수기(2)와 콘덴서 리시버 탱크(3)가 수위조절 밸브(4)를 구비한 응축수 배출배관(5)으로 연결되고, 대기방출 증기배관(6)을 갖춘 상기 콘덴서 리시버 탱크(3)의 배출 증기배관(7)은 복수기(2)의 복수펌프(1)에 연결되어 이루어진 복합화력발전소의 응축수 배출시스템에 있어서, 상기 콘덴서 리시버 탱크(3)의 대기방출 증기배관(6)에 차단밸브(8)를 설치하고, 이 대기방출 증기배관(6)은 압력 조절밸브(9)와 바이패스 밸브(10)를 갖춘 증기 회수배관(11)을 매개로 복수기(2)에 설치된 탈기배관(12)에 연결되어 이루어진 구조로 되어 있다.The present invention is a condenser receiver tank (3) having a plurality of pumps (1) and the condenser receiver tank (3) is connected to the condensate discharge pipe (5) having a water level control valve (4), having an air discharge steam pipe (6) The discharge steam pipe 7 of the condenser receiver tank 3 is connected to the plurality of pumps 1 of the condenser 2 in the condensate discharge system of the combined cycle power plant. A shutoff valve (8) is provided in the pipe (6), and the air discharge steam pipe (6) is provided with a condenser (2) via a steam recovery pipe (11) having a pressure regulating valve (9) and a bypass valve (10). It is configured to be connected to the degassing pipe (12) installed in the).

여기서 상기 대기방출 증기배관(6)에 설치된 차단밸브(8)는 콘덴서 리시버 탱크(3) 내에 있는 증기가 대기로 방출되는 것을 차단하고, 비상시에는 이 차단밸브(8)를 개방하여 복수기(2)를 거쳐 콘덴서 리시버 탱크(3)로 공급된 증기를 종래와 같이 대기로 방출할 수 있다.Here, the shutoff valve (8) installed in the air discharge steam pipe (6) prevents the steam in the condenser receiver tank (3) from being discharged to the atmosphere. In an emergency, the shutoff valve (8) is opened to open the condenser (2). The steam supplied to the condenser receiver tank 3 can be discharged to the atmosphere as before.

그리고 상기 대기방출 증기배관(6)에서 탈기배관(12) 까지는 별도의 증기 회수배관(11)을 신설하여 증기를 복수기(2)의 탈기배관(12) 쪽으로 안내 유도한다.In addition, a separate steam recovery pipe 11 is formed from the air discharge steam pipe 6 to the degassing pipe 12 to guide the steam to the degassing pipe 12 of the condenser 2.

여기서 상기 종래 회수배관(11)에 압력 조절밸브(9)를 설치하여 증기유동에 있어서의 저항손실을 최소화 하였으며, 배출증기가 콘덴서 리시버 탱크(3)로 다량 유입될 때 탱크 내의 압력이 일정치 이상이 되면 이 압력 조절밸브(9)가 열려 탈기배관(12)으로 증기가 흐르도록 되어 있다.Here, the pressure control valve 9 is installed in the conventional recovery pipe 11 to minimize the resistance loss in the steam flow, and when the exhaust steam is introduced into the condenser receiver tank 3 in a large amount, the pressure in the tank is higher than a predetermined value. In this case, the pressure regulating valve 9 is opened to allow steam to flow into the degassing pipe 12.

반면에 상기 콘덴서 리시버 탱크(3) 내로 증기유입이 감소하여 압력이 일정치 미만으로 떨어지면 이 압력 조절밸브(9)가 폐쇄되어 시스템의 고장으로 인한 대기와 연결된 차단밸브(9)의 개방, 또는 기타 문제발생으로 복수기(2)의 급격한 진공도 저하를 방지하도록 되어 있다.On the other hand, if the steam inflow into the condenser receiver tank 3 decreases and the pressure drops below a certain value, the pressure regulating valve 9 is closed to open the shutoff valve 9 connected to the atmosphere due to a system failure, or the like. The occurrence of a problem prevents a sudden drop in the degree of vacuum of the condenser 2.

또한 상기 바이패스 밸브(10)는 시스템 정상 운전중, 즉 배출증기가 소량 유입시 콘덴서 리시버 탱크(3)의 과도한 압력상승을 방지하는 역할을 수행한다.In addition, the bypass valve 10 serves to prevent excessive pressure rise of the condenser receiver tank 3 during normal operation of the system, that is, when a small amount of exhaust steam is introduced.

도 1은 본 고안에 따른 복합화력발전소에 적용된 응축수 배출시스템의 대기방출증기 회수장치의 배관 구성도,1 is a piping configuration diagram of the air discharge steam recovery apparatus of the condensate discharge system applied to the combined cycle power plant according to the present invention,

도 2는 종래 통상적인 복합화력발전소에서 응축수 배출시스템을 나타낸 배관 구성도이다.Figure 2 is a pipe configuration showing a condensate discharge system in a conventional conventional combined cycle power plant.

-도면의 주요부분에 대한 부호의 설명-Explanation of symbols on the main parts of the drawing

1 : 복수펌프, 2 : 복수기,1: multiple pump, 2: multiplier,

3 : 콘덴서 리시버 탱크, 4 : 수위 조절밸브,3: condenser receiver tank, 4: level control valve,

5 : 응축수 배출배관, 6 : 대기방출 증기배관,5: condensate discharge pipe, 6: air discharge steam pipe,

7 : 배출증기 배관, 8 : 차단밸브,7: exhaust steam pipe, 8: shut-off valve,

9 : 압력 조절밸브, 10 : 바이패스 밸브,9: pressure regulating valve, 10: bypass valve,

11 : 증기회수 배관, 12 : 탈기배관.11: steam recovery piping, 12: degassing piping.

Claims (1)

복수펌프(1)를 갖춘 복수기(2)와 콘덴서 리시버 탱크(3)가 수위조절 밸브(4)를 구비한 응축수 배출배관(5)으로 연결되고, 대기방출 증기배관(6)을 갖춘 상기 콘덴서 리시버 탱크(3)의 배출 증기배관(7)은 복수기(2)의 복수펌프(1)에 연결되어 이루어진 복합화력발전소의 응축수 배출시스템에 있어서, The condenser receiver having a condensate discharge pipe 5 having a water level control valve 4 and a condenser receiver tank 3 having a plurality of pumps 1 and a condensate receiver tank 3, and having an air discharge steam pipe 6. In the discharge steam pipe (7) of the tank (3) in the condensate discharge system of the combined cycle power plant, which is connected to the plurality of pumps (1) of the condenser (2), 상기 콘덴서 리시버 탱크(3)의 대기방출 증기배관(6)에 차단밸브(8)를 설치하고, 이 대기방출 증기배관(6)은 압력 조절밸브(9)와 바이패스 밸브(10)를 갖춘 증기 회수배관(11)을 매개로 복수기(2)에 설치된 탈기배관(12)에 연결되어 이루어진 것을 특징으로 하는 복합화력발전소 응축수 배출시스템의 대기 방출증기 회수장치.A shutoff valve (8) is provided in the air discharge steam pipe (6) of the condenser receiver tank (3), and the air discharge steam pipe (6) has a steam having a pressure regulating valve (9) and a bypass valve (10). Atmospheric discharge steam recovery apparatus of the combined cycle power plant condensate discharge system, characterized in that the connection to the degassing pipe (12) installed in the condenser (2) via a recovery pipe (11).
KR2020070015931U 2007-09-28 2007-09-28 An atmosphere emission steam recovery apparatus of condensation water exhaust system KR200441902Y1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140040850A (en) * 2011-09-05 2014-04-03 미츠비시 쥬고교 가부시키가이샤 Steam turbine facility

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140040850A (en) * 2011-09-05 2014-04-03 미츠비시 쥬고교 가부시키가이샤 Steam turbine facility
KR101588145B1 (en) 2011-09-05 2016-01-22 미츠비시 쥬고교 가부시키가이샤 Steam turbine facility

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