KR20080027756A - Water pump common piping line structure of gas turbines - Google Patents

Water pump common piping line structure of gas turbines Download PDF

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Publication number
KR20080027756A
KR20080027756A KR1020070110960A KR20070110960A KR20080027756A KR 20080027756 A KR20080027756 A KR 20080027756A KR 1020070110960 A KR1020070110960 A KR 1020070110960A KR 20070110960 A KR20070110960 A KR 20070110960A KR 20080027756 A KR20080027756 A KR 20080027756A
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Prior art keywords
water
water pump
gas turbine
lines
door
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KR1020070110960A
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Korean (ko)
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윤기경
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한국서부발전 주식회사
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Publication of KR20080027756A publication Critical patent/KR20080027756A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
    • F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
    • F02C3/30—Adding water, steam or other fluids for influencing combustion, e.g. to obtain cleaner exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
    • F02C9/48—Control of fuel supply conjointly with another control of the plant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2270/00—Control
    • F05D2270/01—Purpose of the control system
    • F05D2270/08—Purpose of the control system to produce clean exhaust gases
    • F05D2270/082—Purpose of the control system to produce clean exhaust gases with as little NOx as possible

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A water pump common piping line structure of gas turbines is provided to permit a neighbor water pump to supply water to a relevant gas turbine when one water pump has problems. Common lines(5) having vent lines(4) are connected to respective water supply lines(3a,3b,3c,3d) which connect gas turbines(1a,1b,1c,1d) and water pumps(2a,2b,2c,2d) in series. The common lines connect the water supply lines in parallel with each other. Drain lines(6) are branched from the respective water supply lines so as to recover water from the respective water pumps.

Description

가스터빈의 워터펌프 공동배관 구조{Water pump common piping line structure of gas turbines}Water pump common piping line structure of gas turbines}

본 발명은 발전소 가스터빈에 질소 산화물을 저감하기 위해 연소가스에 물을 주입하는 가스터빈의 워터펌프 배관구조에 관한 것으로, 특히 각각의 가스터빈에 연결된 해당 워터펌프 고장시 이웃하는 워터펌프에서 물을 공급할 수 있어서 안정적인 설비운전이 이루어지는 가스터빈의 워터펌프 공동배관 구조에 관한 것이다.The present invention relates to a water pump piping structure of a gas turbine that injects water into combustion gas to reduce nitrogen oxides in a power plant gas turbine. In particular, when a corresponding water pump connected to each gas turbine fails, water from a neighboring water pump The present invention relates to a water pump joint piping structure of a gas turbine capable of supplying stable plant operation.

발전소의 가스터빈 발전은 가스터빈을 원동기로 사용하여 발전하는 방식으로서, 이 가스터빈 발전시 가스연소시 발생하는 연소가스에서 질소산화물(NOx)을 저감하기 위해 가스터빈에 물을 공급하도록 되어 있다.The gas turbine power generation of the power plant is generated by using the gas turbine as a prime mover, and water is supplied to the gas turbine to reduce nitrogen oxides (NOx) in the combustion gas generated during gas combustion.

종래 가스터빈에 물을 공급하는 워터펌프의 배관구조를 살펴보면, 도 2에 도시된 바와 같이 가스터빈 호기별 1대의 워터펌프가 직접 연결되어 물을 공급하는 배관구조를 갖추고 있는바, 즉 제 1, 2, 3, 4호기 가스터빈(1a,1b,1c,1d) 호기별에 해당 물 공급라인(3a,3b,3c,3d)을 통하여 직접 직렬 연결되는 제 1, 2, 3, 4 워터펌프(2a,2b,2c,2d)들이 설치되어 이루어진 구조로 되어 있다.Looking at the piping structure of the water pump for supplying water to the conventional gas turbine, as shown in Figure 2, one water pump for each gas turbine unit is directly connected to provide a water supply structure, that is, the first, The first, second, third and fourth water pumps connected in series to the second, third and fourth gas turbines 1a, 1b, 1c and 1d through the corresponding water supply lines 3a, 3b, 3c and 3d. 2a, 2b, 2c, and 2d are provided.

그러나 상기와 같은 종래 워터펌프 배관구조는 해당 가스터빈 호기별 펌프 고장시 해당 가스터빈의 운전이 불가능함에 따라 안정적인 연속운전이 불가능한 문제점을 갖추고 있었다.However, the conventional water pump piping structure as described above had a problem that stable continuous operation is impossible because the gas turbine is impossible to operate when the gas turbine is pumped for each breath.

이에 본 발명은 상기와 같은 종래 문제점을 해결하기 위해 발명된 것으로, 가스터빈 호기별로 각각 연결된 해당 워터펌프 고장시에도 타 워터펌프에서 물을 공급받아 연속적인 가스터빈 운전이 가능하여 안정적 발전운전을 도모하고 발전 신뢰도도 향상시키는 가스터빈의 워터펌프 공동배관구조를 제공함에 그 목적이 있다.Accordingly, the present invention has been invented to solve the conventional problems as described above, even when the respective water pump failure connected to each gas turbine exhalation is supplied with water from the other water pump continuous gas turbine operation is possible to achieve a stable power generation operation The purpose is to provide a gas pump joint piping structure of the gas turbine to improve the power generation reliability.

상기와 같은 목적을 달성하기 위한 본 발명은 가스터빈에 물을 공급하기 위해 호별 가스터빈에 각각 직렬 연결되는 호별 워터펌프를 갖추어 이루어진 가스터빈의 워터펌프 배관구조에 있어서, 상기 해당 가스터빈과 워터펌프를 각각 직렬 연결하는 물 공급라인들에는 이 물 공급라인들을 서로 연결하는 벤트라인을 가진 공통라인이 설치되어 워터펌프들을 병렬 연결시키며, 상기 각각의 워터펌프와 공통라인의 중간에는 각각의 워터펌프의 물을 회수시키는 드레인라인이 물 공급라인에서 분지되어 이루어진 구조로 되어 있다.In order to achieve the above object, the present invention provides a gas turbine water pump piping structure including a door-to-door water pump connected in series to a door-to-door gas turbine for supplying water to the gas turbine, wherein the corresponding gas turbine and water pump are provided. Each of the water supply lines connected in series is provided with a common line having a vent line for connecting the water supply lines to each other to connect the water pumps in parallel, the middle of each water pump and the common line of each water pump The drain line for recovering water is branched from the water supply line.

상기와 같이 본 발명에 따른 가스터빈의 워터펌프 공통배관구조는 가스터빈 발전 운전시 해당 가스터빈에 물을 공급하는 워터펌프 고장시에도 이웃한 워터펌프에서 물을 공급하여 연속 발전 운전이 가능하며, 안정적 설비운전에 잇점을 주는 효과를 지닌다.As described above, the common structure of the water pump of the gas turbine according to the present invention enables continuous power generation operation by supplying water from a neighboring water pump even when a water pump that supplies water to the gas turbine during a gas turbine power generation operation fails. It has the effect of benefiting stable operation of the facility.

이하, 본 발명의 바람직한 실시예를 첨부도면을 참고로 상세히 설명한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 따른 가스터빈의 워터펌프 공통배관구조를 나타낸 배관 레이아웃 도면이다.1 is a piping layout diagram showing a common structure of the water pump of the gas turbine according to the present invention.

본 발명은 도면에 도시된 바와 같이 가스터빈에 물을 공급하기 위해 호별 가스터빈(1a,1b,1c,1d)에 각각 직렬 연결되는 호별 워터펌프(2a,2b,2c,2d)를 갖추어 이루어진 가스터빈의 워터펌프 배관구조에 있어서, 상기 호별 가스터빈(1a,1b,1c,1d)과 워터펌프(2a,2b,2c,2d)를 각각 직렬 연결하는 물 공급라인(3a,3b,3c,3d)에는 이 물 공급라인(3a,3b,3c,3d)들을 서로 연결하는 벤트라인(4)을 갖춘 공통라인(5)이 설치되어 이 물 공급라인(3a,3b,3c,3d)들을 병렬 연결시키며, 상기 각각의 워터펌프(2a,2b,2c,2d)와 공통라인(5)의 중간에는 해당 워터펌프(2a,2b,2c,2d)의 물을 회수하는 드레인라인(6)이 각각의 물 공급라인(3a,3b,3c,3d)에서 분지되어 이루어진 구조로 되어 있다.The present invention is a gas provided with a door-to-door water pump (2a, 2b, 2c, 2d) connected in series to the door-to-door gas turbine (1a, 1b, 1c, 1d) to supply water to the gas turbine as shown in the figure In the water pump piping structure of the turbine, the water supply line (3a, 3b, 3c, 3d) connecting the door-to-house gas turbine (1a, 1b, 1c, 1d) and the water pump (2a, 2b, 2c, 2d) in series ) Is installed a common line 5 with vent line 4 connecting the water supply lines 3a, 3b, 3c and 3d to each other so that the water supply lines 3a, 3b, 3c and 3d are connected in parallel. In the middle of each of the water pumps 2a, 2b, 2c and 2d and the common line 5, a drain line 6 for recovering water of the water pumps 2a, 2b, 2c and 2d is provided. The water supply lines 3a, 3b, 3c, and 3d are branched.

이와 같이 이루어진 본 발명은 가스터빈 발전시 해당 가스터빈(1a,1b,1c,1d)의 펌프 고장시 이웃한 워터펌프(2a,2b,2c,2d)에서 공통라인(5)을 통하여 물을 공급받을 수 있어서 해당 물 공급라인(3a,3b,3c,3d)를 통하여 연속 물분사 공급이 가능함에 따라 안정적인 설비운전이 가능하도록 되어 있다.According to the present invention, water is supplied through the common line 5 from the neighboring water pumps 2a, 2b, 2c, and 2d when the pump of the gas turbines 1a, 1b, 1c, and 1d fails. It is possible to receive a continuous water spray supply through the corresponding water supply line (3a, 3b, 3c, 3d) is to enable a stable installation operation.

예를 들어 제 1호기 가스터빈(1a)에 물을 공급하는 제 1 워터펌프(2a)가 고장난 경우, 제 2 워터펌프(2b)에서 공통라인(5)을 통하여 물을 공급받아 제 1호기 가스터빈(1a)의 운전을 정지시키지 않아도 되며, 제 2, 3, 4 워터펌프(2b,2c,2d) 중 어느 것이 고장이 발생하여도 이웃한 워터펌프에서 고장난 워터펌프의 해당 가 스터빈으로 물을 공급할 수 있도록 되어 있다.For example, when the first water pump 2a that supplies water to the first unit gas turbine 1a is broken, the second unit is supplied with water through the common line 5 from the second water pump 2b to the first unit gas. It is not necessary to stop the operation of the turbine 1a, and if any of the second, third, and fourth water pumps 2b, 2c, and 2d fails, water from the neighboring water pump to the corresponding turbine of the failed water pump is lost. It can be supplied.

도 1은 본 발명에 따른 가스터빈의 워터펌프 공동배관구조를 나타낸 배관도,1 is a piping diagram showing a water pump joint piping structure of the gas turbine according to the present invention,

도 2는 종래의 배관도로서, 도 1에 대응되는 도면이다.FIG. 2 is a diagram of a conventional pipe, corresponding to FIG. 1.

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

1a,1b,1c,1d : 가스터빈, 2a,2b,2c,2d : 워터펌프,1a, 1b, 1c, 1d: gas turbine, 2a, 2b, 2c, 2d: water pump,

3a,3b,3c,3d : 물 공급라인, 4 : 벤트라인,3a, 3b, 3c, 3d: water supply line, 4: vent line,

5 : 공통라인, 6 : 드레인라인.5: common line, 6: drain line.

Claims (1)

가스터빈에 물을 공급하기 위해 호별 가스터빈(1a,1b,1c,1d)에 각각 직렬 연결되는 호별 워터펌프(2a,2b,2c,2d)를 갖추어 이루어진 가스터빈의 워터펌프 배관구조에 있어서, In the gas turbine water pump piping structure comprising a door-to-door water pump (2a, 2b, 2c, 2d) connected in series to the door-to-door gas turbine (1a, 1b, 1c, 1d) to supply water to the gas turbine, 상기 호별 가스터빈(1a,1b,1c,1d)과 워터펌프(2a,2b,2c,2d)를 각각 직렬 연결하는 물 공급라인(3a,3b,3c,3d)에는 이 물 공급라인(3a,3b,3c,3d)들을 서로 연결하는 벤트라인(4)을 갖춘 공통라인(5)이 설치되어 이 물 공급라인(3a,3b,3c,3d)들을 병렬 연결시키며, 상기 각각의 워터펌프(2a,2b,2c,2d)와 공통라인(5)의 중간에는 해당 워터펌프(2a,2b,2c,2d)의 물을 회수하는 드레인라인(6)이 각각의 물 공급라인(3a,3b,3c,3d)에서 분지되어 이루어진 것을 특징으로 하는 가스터빈의 워터펌프 공통배관구조.The water supply lines 3a, 3b, 3c, and 3d which connect the door-to-door gas turbines 1a, 1b, 1c and 1d and the water pumps 2a, 2b, 2c and 2d in series, respectively. A common line 5 having vent lines 4 connecting 3b, 3c and 3d to each other is installed to connect the water supply lines 3a, 3b, 3c and 3d in parallel, and the respective water pumps 2a Between the lines 2b, 2c and 2d and the common line 5, the drain line 6 for recovering the water of the water pumps 2a, 2b, 2c and 2d is provided with the respective water supply lines 3a, 3b and 3c. , 3d) branched water pump common pipe structure, characterized in that made in.
KR1020070110960A 2007-11-01 2007-11-01 Water pump common piping line structure of gas turbines KR20080027756A (en)

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