KR200435767Y1 - The degree of a vacuum control apparatus of power plant condenser - Google Patents

The degree of a vacuum control apparatus of power plant condenser Download PDF

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KR200435767Y1
KR200435767Y1 KR2020060025737U KR20060025737U KR200435767Y1 KR 200435767 Y1 KR200435767 Y1 KR 200435767Y1 KR 2020060025737 U KR2020060025737 U KR 2020060025737U KR 20060025737 U KR20060025737 U KR 20060025737U KR 200435767 Y1 KR200435767 Y1 KR 200435767Y1
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South Korea
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condenser
control valve
vacuum
power plant
vacuum degree
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KR2020060025737U
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Korean (ko)
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김명덕
성창모
이동춘
이준수
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한국서부발전 주식회사
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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
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • 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
    • F01K9/00—Plants characterised by condensers arranged or modified to co-operate with the engines
    • F01K9/003—Plants characterised by condensers arranged or modified to co-operate with the engines condenser cooling circuits
    • 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
    • F01K9/00—Plants characterised by condensers arranged or modified to co-operate with the engines
    • F01K9/02—Arrangements or modifications of condensate or air pumps
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28B—STEAM OR VAPOUR CONDENSERS
    • F28B11/00—Controlling arrangements with features specially adapted for condensers

Abstract

본 고안은 발전소 복수기에서 발생하는 압력 진공도를 조절하여 공기 응축기로 보내는 발전소 복수기의 진공도를 조절하는 조절장치에 관한 것으로, 더욱 상세하게는 진공도를 수동식 조절밸브를 이용하여 최대한 낮게 유지하는 종래방식과 달리 발전소 전체의 출력, 냉각용 해수의 온도, 외기 온도 등 여러 인자를 고려하여 최적의 압력 진공도를 자동으로 공급하여 발전효율을 향상시키는 발전소 복수기의 진공도 조절장치에 관한 것이다.The present invention relates to a control device for controlling the vacuum degree of the power plant condenser sent to the air condenser by adjusting the pressure vacuum generated in the power plant condenser, more specifically, unlike the conventional method of maintaining the vacuum degree as low as possible using a manual control valve The present invention relates to a vacuum control device of a power plant condenser that improves power generation efficiency by automatically supplying an optimum pressure vacuum degree in consideration of various factors such as the output of the entire power plant, the temperature of seawater for cooling, and the outside temperature.

이를 위해 본 고안은 복수기(1)와 공기 응축기(2) 사이를 연결하는 배관(3)에 설치되어 복수기(1)의 진공도를 조절하기 위해 설치되는 조절밸브(4a)를 갖추어 이루어진 발전소 복수기의 진공도 조절장치에 있어서, 진공도 조절의 정밀도를 향상시키기 위하여 상기 대용량의 진공도 조절밸브(4a)에 병렬로 배치되는 소용량의 진공도 정밀 보조 조절밸브(4b)를 설치하고 이 조절밸브(4a)와 보조 조절밸브(4b)를 복수기 진공 조절부(5)로 함께 조절하되, 상기 복수기 진공 조절부(5)는 다양한 입력변수로 입력된 사항들을 고려하여 출력되는 출력변수에 의하여 병렬 설치되는 조절밸브(4a)와 보조 조절밸브(4b)들의 개도 상태를 조절하도록 되어 있다.To this end, the present invention is a vacuum degree of the power plant condenser provided with a control valve (4a) is installed in the pipe (3) connecting between the condenser (1) and the air condenser (2) to adjust the degree of vacuum of the condenser (1) In the regulating device, in order to improve the accuracy of the vacuum degree adjustment, a small capacity vacuum degree precision auxiliary control valve 4b disposed in parallel with the large capacity vacuum degree control valve 4a is provided, and this control valve 4a and the auxiliary control valve are provided. (4b) is controlled together with the condenser vacuum control unit 5, wherein the condenser vacuum control unit 5 and the control valve (4a) which is installed in parallel by the output variable in consideration of the input to the various input variables and The opening state of the auxiliary control valves 4b is adapted to be adjusted.

Description

발전소 복수기의 진공도 조절장치{The degree of a vacuum control apparatus of power plant condenser}The degree of a vacuum control apparatus of power plant condenser}

도 1은 본 고안에 따른 발전소 복수기의 진공도 조절장치를 나타낸 배관 구성도,1 is a pipe configuration showing the vacuum degree control apparatus of the power plant condenser according to the present invention,

도 2는 도 1의 진공도 조절부에 입력변수를 나타낸 도면,2 is a view showing input parameters in the vacuum degree adjusting unit of FIG. 1;

도 3은 종래 발전소 복수기의 진공도 조절장치를 나타낸 배관 구성도로서, 도 1에 대응되는 도면이다.3 is a piping configuration diagram showing a vacuum degree adjusting apparatus of a conventional power plant condenser, which corresponds to FIG. 1.

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

1 : 복수기(Condenser), 2 : 공기 응축기(Air ejector),1: condenser, 2: air ejector,

3 : 배관, 4a : 조절밸브,3: piping, 4a: control valve,

4b : 보조 조절밸브, 5 : 복수기 진공 조절부.4b: auxiliary control valve, 5: multiplier vacuum control unit.

본 고안은 발전소 복수기에서 발생하는 압력 진공도를 조절하여 공기 응축기로 보내는 발전소 복수기의 진공도를 조절하는 조절장치에 관한 것으로, 더욱 상세하게는 발전소 전체의 출력, 냉각용 해수의 온도, 외기 온도 등 여러 인자를 고려 하여 최적의 압력 진공도를 공급하여 발전효율을 향상시키는 발전소 복수기의 진공도 조절장치에 관한 것이다.The present invention relates to a control device for controlling the vacuum degree of the power plant condenser sent to the air condenser by adjusting the pressure vacuum generated in the power plant condenser, more specifically, the power factor of the entire plant, the temperature of the seawater for cooling, the outside air temperature, etc. The present invention relates to a vacuum degree control device for a power plant multiplier that improves power generation efficiency by supplying an optimum pressure vacuum degree.

화력발전소에서 복수기(Condenser)는 증기를 물로 환원시키면서 압력을 대기압 이하로 내리는 역할을 수행하는 설비로서, 복수기의 최대 진공도는 유입되는 냉각수, 외기의 온도에 영향을 받게 되는데, 통상 복수기의 진공도가 증가하면 터빈의 효율이 향상되나, 냉각수의 온도 및 외기의 온도에 따라 한계가 있으며, 또한 복수기의 진공도 증가는 열손실을 가져옴에 따라 발전소 전체 효율을 저하시킨다.Condenser in thermal power plant (Condenser) is a facility that serves to reduce the pressure to below atmospheric pressure while reducing steam to water, the maximum vacuum degree of the condenser is affected by the temperature of the incoming coolant, the outside air, the vacuum degree of the condenser usually increases If the turbine efficiency is improved, there is a limit depending on the temperature of the cooling water and the temperature of the outside air, and the increase in the degree of vacuum of the condenser lowers the overall efficiency of the power plant as it causes heat loss.

한편, 종래 복수기의 진공도 조절은 도 3에 도시된 바와 같이 복수기(101)로 부터 유입되어 배관(103)을 거쳐 공기 응축기(102)로 공급되는 압력 진공도 조절을 위해 수동식 조절밸브(104)를 조작하여 이용하였으며, 이러한 수동식 조절밸브(104)를 이용할 때 복수기(101)의 진공도를 최대한 낮게 유지하도록 되어 있었다.Meanwhile, the vacuum degree control of the conventional condenser manipulates the manual control valve 104 to adjust the pressure degree of vacuum supplied from the condenser 101 and supplied to the air condenser 102 via the pipe 103 as shown in FIG. 3. When using the manual control valve 104, the degree of vacuum of the condenser 101 was to be kept as low as possible.

그러나 냉각수 온도가 낮은 동절기에는 지나치게 낮은 진공도를 유지함에 따라 복수기(101)에서 열손실이 과다하게 발생하고, 이에 따라 발전소 전체 효율에 악영향을 끼치게 되는 문제점이 제기되어 왔다.However, in winter, when the cooling water temperature is low, excessive heat loss occurs in the condenser 101 by maintaining an excessively low degree of vacuum, thereby causing a problem that adversely affects the overall efficiency of the power plant.

이에 본 고안은 상기와 같은 종래 문제점을 해결하기 위해 안출된 것으로, 복수기의 진공도 조절의 최적화를 유지시키어 발전소 전체의 효율을 향상시킬 수 있는 발전소 복수기의 진공도 조절장치를 제공함에 그 목적이 있다.Accordingly, the present invention has been made to solve the conventional problems as described above, it is an object of the present invention to provide an apparatus for controlling the vacuum degree of the power plant multiplier that can maintain the optimization of the vacuum control of the multiplier to improve the efficiency of the entire power plant.

상기와 같은 목적을 달성하기 위한 본 고안은 복수기와 공기 응축기 사이를 연결하는 배관에 설치되어 복수기의 진공도를 조절하기 위해 설치되는 조절밸브를 갖추어 이루어진 발전소 복수기의 진공도 조절장치에 있어서, 진공도 조절의 정밀도를 향상시키기 위하여 상기 대용량의 진공도 조절밸브에 병렬로 배치되는 소용량의 진공도 정밀 보조 조절밸브를 설치하고 상기 조절밸브와 보조 조절밸브를 복수기 진공 조절부로 함께 조절하되, 이 복수기 진공 조절부는 다양한 입력변수로 입력된 사항들을 고려하여 출력되는 출력변수에 의하여 병렬 설치되는 조절밸브와 보조 조절밸브들을 조절하도록 되어 있다.The present invention for achieving the above object is in the vacuum degree control device of the power plant condenser provided with a control valve is installed in the pipe connecting the condenser and the air condenser to adjust the degree of vacuum, precision of the vacuum degree control In order to improve the accuracy, a small vacuum precision precision control valve disposed in parallel to the large-capacity vacuum control valve is installed, and the control valve and the auxiliary control valve are controlled together with a condenser vacuum control unit. In consideration of the inputs, the control valve and the auxiliary control valve are installed in parallel by the output variables.

이하, 본 고안은 첨부된 예시도면에 의거 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 고안에 따른 발전소 복수기의 진공도 조절장치를 나타낸 전체 배관 구성도이고, 도 2는 본 고안에 도시된 복수기 진공 조절부에 입력되는 변수를 도시한 도면이다.1 is an overall piping configuration diagram showing a vacuum degree control apparatus of a power plant condenser according to the present invention, Figure 2 is a view showing a variable input to the condenser vacuum control unit shown in the present invention.

본 고안은 복수기(1)와 공기 응축기(2) 사이를 연결하는 배관(3)에 설치되어 복수기(1)의 진공도를 조절하기 위해 설치되는 조절밸브(4a)를 갖추어 이루어진 발전소 복수기의 진공도 조절장치에 있어서, 진공도 조절의 정밀도를 향상시키기 위하여 상기 대용량의 진공도 조절밸브(4a)에 병렬로 배치되는 소용량의 진공도 정밀 보조 조절밸브(4b)를 설치하고 이 조절밸브(4a)와 보조 조절밸브(4b)를 복수기 진공 조절부(5)로 함께 조절하되, 상기 복수기 진공 조절부(5)는 다양한 입력변수로 입력된 사항들을 고려하여 출력되는 출력변수에 의하여 병렬 설치되는 조절밸브(4a)와 보조 조절밸브(4b)들의 개도 상태를 조절하도록 이루어져 있다.The present invention is installed in the pipe (3) connecting between the condenser (1) and the air condenser (2) is equipped with a control valve (4a) is installed to control the vacuum degree of the condenser (1) vacuum degree control device of the power plant condenser In order to improve the accuracy of the vacuum degree adjustment, a small capacity vacuum degree precision auxiliary control valve (4b) arranged in parallel to the large capacity vacuum degree control valve (4a) is provided and the control valve (4a) and the auxiliary control valve (4b) ) Is controlled together with the condenser vacuum control unit 5, wherein the condenser vacuum control unit 5 is controlled in parallel with the control valve 4a installed by the output variable in consideration of the matters inputted into various input variables. It is made to adjust the opening state of the valve 4b.

상기와 같이 본 고안은 복수기(1) 진공도 조절의 정밀도를 향상시키기 위해 미세조절이 가능한바, 즉 이 복수기(1) 후단쪽에 설치되는 대용량의 진공도 조절밸브(4a)와 병렬로 소용량의 진공도 정밀 보조 조절밸브(4b)를 추가로 설치하여 복수기 진공 조절부(5)에 의하여 조절밸브(4a)와 보조 조절밸브(4b)를 조화롭게 미세 조절함에 따라 최적의 복수기(1) 진공도를 유지시킬 수 있다.As described above, the present invention is capable of fine adjustment in order to improve the accuracy of the degree of vacuum control of the condenser 1, that is, a small degree of vacuum degree precision assistance in parallel with the large-capacity vacuum degree control valve 4a installed at the rear end of the condenser 1. The control valve 4b may be further installed to maintain the optimum degree of vacuum of the condenser 1 by finely adjusting the control valve 4a and the auxiliary control valve 4b by the condenser vacuum control unit 5.

그리고 상기 복수기 진공 조절부(5)에 입력되는 사항들은 복수기 진공도, 유입 냉각수 온도, 유입 냉각수 유량, 외기의 온도, 각 조절밸브(4a,4b)의 개도, 전체 발전량, 터빈효율, 기타 매개변수들이 입력되고, 공지의 PLC 프로그램에 의하여 최적의 출력변수의 신호에 의하여 조절밸브(4a)와 보조 조절밸브(4b)의 개도가 조절되어짐에 따라 복수기(1)의 진공도를 최적 상태로 유지시킬 수가 있다.The input to the condenser vacuum control unit 5 includes condenser vacuum degree, inlet coolant temperature, inlet coolant flow rate, outside air temperature, opening degree of each control valve 4a and 4b, total power generation amount, turbine efficiency, and other parameters. As the opening degree of the control valve 4a and the auxiliary control valve 4b is adjusted by a signal of an optimum output variable by a well-known PLC program, the vacuum degree of the condenser 1 can be kept to an optimum state. .

상기와 같이 본 고안에 따른 발전소 복수기의 진공도 조절장치는 요구 진공도의 대부분이 최대 진공도의 일정한 비율로서 주조절 밸브인 대용량의 진공도 조절밸브(4a)에서 조정하며, 소용량의 진공도 보조 조절밸브(4b)에서는 미세한 조절이 이루어지도록 병렬 설치되는 2개의 조절밸브의 개도를 조절하여 복수기 진공 조절부로 최적상태로 유지시키어 조화롭게 조절함에 따라, 발전소 전체의 출력과 열효율 향상에 기여할 수 있는 잇점을 갖는다.As described above, the vacuum control device of the power plant condenser according to the present invention is controlled by the large-capacity vacuum control valve 4a, which is the main control valve, with a large proportion of the required vacuum degree being a constant ratio of the maximum vacuum degree, and the small vacuum degree auxiliary control valve 4b. In the present invention, by controlling the opening degree of two control valves installed in parallel so that fine adjustment is made and maintaining the optimum state with the multiplier vacuum control unit, it has the advantage of contributing to the output and the thermal efficiency of the entire power plant.

Claims (1)

복수기(1)와 공기 응축기(2) 사이를 연결하는 배관(3)에 설치되어 복수기(1)의 진공도를 조절하기 위해 설치되는 조절밸브(4a)를 갖추어 이루어진 발전소 복수기의 진공도 조절장치에 있어서, In the vacuum degree control apparatus of the power plant condenser provided in the pipe (3) connecting between the condenser (1) and the air condenser (2) is provided with a control valve (4a) for adjusting the vacuum degree of the condenser (1), 상기 대용량의 진공도 조절밸브(4a)에 병렬로 배치되는 소요량의 진공도 정밀 보조 조절밸브(4b)를 설치하고 이 조절밸브(4a)와 보조 조절밸브(4b)를 복수기 진공 조절부(5)로 함께 조절하되, 복수기 진공 조절부(5)는 다양한 입력변수로 입력된 사항들을 고려하여 출력되는 출력변수에 의하여 병렬 설치되는 대용량 조절밸브(4a)와 소용량 정밀 보조 조절밸브(4b)들의 개도 상태를 자동으로 조절하도록 이루어진 것을 특징으로 하는 발전소 복수기의 진공도 조절장치.The required vacuum degree precision auxiliary control valve 4b disposed in parallel to the large-capacity vacuum control valve 4a is installed, and the control valve 4a and the auxiliary control valve 4b are combined together with the condenser vacuum control unit 5. While adjusting, the multiplier vacuum controller 5 automatically adjusts the opening state of the large-capacity control valve 4a and the small-capacity precision auxiliary control valve 4b which are installed in parallel according to the output variables outputted in consideration of matters inputted into various input variables. Vacuum degree control device of the power plant multiplier, characterized in that made to adjust to.
KR2020060025737U 2006-09-25 2006-09-25 The degree of a vacuum control apparatus of power plant condenser KR200435767Y1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101505505B1 (en) 2014-03-24 2015-03-24 주식회사 누리텍 Device for supplying organic solvent of organic rankine cycle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101505505B1 (en) 2014-03-24 2015-03-24 주식회사 누리텍 Device for supplying organic solvent of organic rankine cycle

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