KR20060125053A - Single pass system for water circulation type of generator - Google Patents

Single pass system for water circulation type of generator Download PDF

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Publication number
KR20060125053A
KR20060125053A KR1020050046841A KR20050046841A KR20060125053A KR 20060125053 A KR20060125053 A KR 20060125053A KR 1020050046841 A KR1020050046841 A KR 1020050046841A KR 20050046841 A KR20050046841 A KR 20050046841A KR 20060125053 A KR20060125053 A KR 20060125053A
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cooling
water
generator
path
pressure
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KR1020050046841A
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Korean (ko)
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KR100695608B1 (en
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오세욱
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두산중공업 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
    • 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
    • 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steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating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steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Windings For Motors And Generators (AREA)

Abstract

A water cooling single circulation system for a generator is provided to reduce the pump load by reducing the length of a cooling path and lowering pressure. In a water cooling single circulation system for a generator, cooling water from turbine ends(C,D) is divided to upper and lower sides and flows individually. Then, even when the cooling water converges on a side(E) of a collect end to flow out or a cooling path is formed in the opposite direction. The cooling efficiency is increased and the pressure is reduced by shortening the cooling path. If the cooling length is shortened by the cooling path, the pressure according to the flow of the cooling water is lowered and the pump load is reduced.

Description

발전기용 수냉각식 싱글 순환시스템{Single Pass System for Water Circulation Type of Generator}Single Pass System for Water Circulation Type of Generator

도 1은 종래기술에 따른 수냉각식 순환시스템을 개략적으로 보여주는 도면이다.1 is a view schematically showing a water-cooled circulation system according to the prior art.

도 2는 본 발명에 따른 수냉각식 순환시스템을 개략적으로 보여주는 도면이다.2 is a view schematically showing a water-cooled circulation system according to the present invention.

<도면의 주요 부분에 대한 부호의 설명> <Explanation of symbols for the main parts of the drawings>

10,20,22 : 냉각경로 A,E : 콜렉트 엔드10,20,22: Cooling path A, E: Collect end

B,C,D : 터빈 엔드B, C, D: Turbine End

본 발명은 발전기용 수냉각식 싱글 순환시스템에 관한 것으로, 냉각수가 해당 냉각경로를 따라 각각 개별적으로 흐르도록 하여 냉각효율을 높이고, 또한 냉각 경로의 길이가 감소되어 압력이 낮게 형성되므로 펌프부하를 감소시킬 수 있도록 한 것이다.The present invention relates to a water-cooled single circulation system for a generator, to increase the cooling efficiency by allowing the cooling water to flow individually along the corresponding cooling path, and also to reduce the pump load because the length of the cooling path is reduced to form a low pressure. It was made to be possible.

일반적으로 대용량 발전기의 전기자에 첨부된 예시도면 도 1에서 보는 바와 같이 냉각효율을 향상시키기 위하여 냉각경로(10)를 따라 중공구조로 이루어지는 중공(Hollow)의 소선(Strand)들로 설계되며, 이러한 중공의 내부에 냉각수를 흘려 냉각기능이 발휘되게 된다.In general, as shown in Figure 1 attached to the armature of a large-capacity generator is designed with hollow strands (hollow) of the hollow structure along the cooling path 10 to improve the cooling efficiency, such hollow Cooling function is exerted by flowing coolant inside.

따라서, 종래의 냉각수의 냉각경로(10)는, 첨부된 도면에서 보는 바와 같이 콜렉터 엔드(Collector End)'A'측에서 시작하여 터빈 엔드(Turbine End)'B'측을 경유하고 다시 'A'측으로 돌아오거나 또는 그 반대로 터빈 엔드(Turbine End)B측에서 시작하여 콜렉터 엔드(Collector End)'A'측을 경유하고 다시 B'측으로 돌아오는 더블패스 수냉각 시스템이 적용되어 왔다.(화살표는 냉각수의 이동방향이다) Accordingly, the cooling path 10 of the conventional cooling water starts from the collector end 'A' side and passes through the turbine end 'B' side as shown in the accompanying drawings, and then goes back to 'A'. A double pass water cooling system has been applied, which returns to the side or vice versa, starting from the turbine end B side, passing through the collector end 'A' side and back to the B 'side. Direction of movement)

그러나, 위에서 언급된 바와 같이 더블패스 수냉각 시스템은 한번 냉각된 냉각수가 냉각경(10)로 즉, 'A'측에서 시작하여 'B'측을 경유하여 다시 'A'측으로 돌아오도록 흐르게 됨으로써, 자연히 냉각경로(10)가 길어지게 되어 냉각효율이 낮아지게 되며, 아울러 냉각수의 원활한 이동을 위하여 압력이 높게 형성되므로 펌프부하가 증가하게 되는 문제가 있었다.However, as mentioned above, in the double pass water cooling system, the coolant cooled once flows to the cooling mirror 10, that is, starts from the 'A' side and returns to the 'A' side via the 'B' side. Naturally, the cooling path 10 is long, so that the cooling efficiency is lowered, and the pump load is increased because the pressure is increased to smoothly move the cooling water.

나아가, 위의 문제점 중 압력을 감소시키기 위해 중공의 내경을 크게 설계하게 되면, 궁극적으로 전기적 저항손실이 야기되는 문제가 있다. Furthermore, if the hollow inner diameter is largely designed to reduce the pressure among the above problems, there is a problem that ultimately causes an electrical resistance loss.

본 발명은 상기와 같은 문제점을 해소하기 위해 발명된 것으로, 냉각수가 해당 냉각경로를 따라 각각 개별적으로 흐르는 시스템이 제시됨으로써, 냉각효율을 높이고, 또한 냉각경로의 길이가 감소되어 압력이 낮게 형성되므로 펌프부하가 감소될 수 있도록 하는 점에 목적이 있다.The present invention has been invented to solve the above problems, by providing a system in which the cooling water flows separately along the cooling path, respectively, thereby increasing the cooling efficiency, and also reducing the length of the cooling path to form a low pressure pump The purpose is to allow the load to be reduced.

상기와 같은 목적을 달성하기 위한 본 발명은, 터빈 엔드 'C' 및 'D'측에서부터 냉각수가 상,하부로 나뉘어 개별적으로 흐르도록 하여 콜렉트 엔드 'E'측에서 냉각수가 서로 모아져 빠져나가도록 또는 반대의 방향으로 냉각경로가 형성되더라도, 짧은 냉각경로 인해 냉각효율을 높이면서 압력을 감소시키도록 하는 발전기용 싱글패스 수냉각 시스템에 기술적 특징이 있다.The present invention for achieving the above object, the cooling water is divided into the upper and lower parts from the turbine end 'C' and 'D' side to flow separately so that the cooling water is collected from each other at the end of the collect end 'E' or Even if the cooling path is formed in the opposite direction, there is a technical feature of the single-pass water cooling system for the generator to reduce the pressure while increasing the cooling efficiency due to the short cooling path.

이하, 첨부된 예시도면을 참조하여 본 발명의 바람직한 실시 예를 상세하게 설명한다. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

첨부된 예시도면 도 2는 본 발명에 따른 수냉각식 순환시스템을 개략적으로 보여주는 도면이다.2 is a view schematically showing a water-cooled circulation system according to the present invention.

첨부된 예시도면을 참조하면, 본 발명의 냉각수의 냉각경로(20,22)는 터빈 엔드 'C' 및 'D'측에서 냉각수가 상,하부로 나뉘어 개별적으로 흐르도록 시작하여 콜렉트 엔드 'E'측에서 상기 'C' 및 'D'측에서 흐르는 냉각수가 서로 모아져 빠져나가는 싱글패스 수냉각 시스템이 적용된다.(화살표는 냉각수 이동방향이다.)Referring to the accompanying drawings, the cooling paths 20 and 22 of the cooling water of the present invention start to flow separately from the upper and lower coolant flows at the turbine end 'C' and 'D' side to collect end 'E' The single pass water cooling system in which the coolants flowing from the 'C' and 'D' sides are discharged from each other is discharged. (The arrow is the coolant movement direction.)

그러나, 반드시 위의 냉각경로(20,22)로 한정되거나 국한되지 아니하고, 그 반대의 방향으로 배치하여, 냉각수가 콜렉트 엔드에서 터빈 엔드로 흐르도록 하여도 무방할 것이다.However, it is not necessarily limited to or limited to the cooling paths 20 and 22 above, but may be arranged in the opposite direction so that the cooling water flows from the collect end to the turbine end.

따라서, 위에서 언급된 바와 같이 싱글패스 수냉각 시스템은, 상기 냉각경로(20,22)의 길이와 중공이 종래와 동일한 조건이라 가정할 때, 한번 냉각된 냉각수가 냉각경로(20,22) 즉, 'C' 및 'D'측에서 흐르도록 시작하되, 상부와 하부로 나뉘어 각각 개별적으로 흐르게 됨으로써, 종래에 비해 자연히 냉각경로(20,22)가 짧아지게 되므로 냉각수의 열교환에 따른 온도상승이 완만하여 냉각효율이 높아지게 되는 것이다. Therefore, as mentioned above, in the single pass water cooling system, assuming that the lengths and hollows of the cooling paths 20 and 22 are the same as in the related art, the cooling water once cooled is the cooling paths 20 and 22, that is, Start to flow on the 'C' and 'D' side, but divided into the upper and lower flows separately, so that the cooling paths (20, 22) is naturally shorter than the conventional one, so the temperature rise due to the heat exchange of the cooling water is gentle Cooling efficiency will be increased.

또한, 상기와 같이 개별적으로 적용되는 냉각경로(20,22)에 의해 냉각길이가 짧아지게 되면, 냉각수의 이동에 대한 압력이 낮게 형성되어 펌프부하가 감소하게 되고, 이에 따라 종래와 같이 압력을 감소시키기 위하여 중공을 크게 설계하여야 할 필요가 없으므로 해서 궁극적으로는 전기적 저항손실을 감소시킬 수 있게 되는 것이다. In addition, when the cooling length is shortened by the cooling paths 20 and 22 that are individually applied as described above, the pressure for the movement of the cooling water is formed to be low to reduce the pump load, thereby reducing the pressure as in the prior art. It is not necessary to design a large hollow in order to ultimately reduce the electrical resistance loss.

위와 같이 본 발명은 대용량 발전기의 전기자에 냉각효율을 향상시키기 위하여 냉각수가 해당 경로를 따라 각각 개별적으로 흐르는 시스템이 제시됨으로써, 냉각효율이 높아지는 효과를 얻을 수 있으며, 그에 따라 발전기의 성능을 극대화할 수 있는 효과를 기대할 수 있다. As described above, the present invention provides a system in which the cooling water flows individually along the corresponding path to improve the cooling efficiency of the armature of the large-capacity generator, thereby obtaining the effect of increasing the cooling efficiency, thereby maximizing the performance of the generator. You can expect the effect.

또한, 냉각경로의 길이가 감소되면, 압력이 낮게 형성되므로 펌프부하가 감 소되고, 그에 따라 중공의 크기를 크게 설계할 필요가 없으므로 해서 궁극적으로는 전기적 저항손실을 급격히 감소시킬 수 있도록 하는 효과를 얻을 수 있다. In addition, if the length of the cooling path is reduced, since the pressure is formed low, the pump load is reduced, and accordingly, there is no need to design a large size of the hollow, thereby ultimately reducing the electrical resistance loss. You can get it.

나아가, 본 발명을 사용하게 되면, 가격이 고가인 중공 소선의 설치수량을 줄일 수 있고, 그에 따라 원가를 절감할 수 있는 효과도 기대할 수 있다.Furthermore, by using the present invention, it is possible to reduce the quantity of installation of expensive hollow element wire, thereby reducing the cost can be expected.

Claims (1)

터빈 엔드 'C' 및 'D'측에서부터 냉각수가 상,하부로 나뉘어 개별적으로 흐르도록 하여 콜렉트 엔드 'E'측에서 냉각수가 서로 모아져 빠져나가도록 또는 반대의 방향으로 냉각경로가 형성되더라도, 짧은 냉각경로 인해 냉각효율을 높이면서 압력을 감소시키도록 하는 것을 특징으로 하는 발전기용 싱글패스 수냉각 시스템.Cooling water is divided into upper and lower parts from the turbine end 'C' and 'D' side to flow separately, so that the cooling water is collected from each other at the collect end 'E' side, and the cooling path is formed in the opposite direction. Single-pass water cooling system for a generator, characterized in that to reduce the pressure while increasing the cooling efficiency due to the path.
KR1020050046841A 2005-06-01 2005-06-01 Water Circulation structure for Water cooling Generator KR100695608B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9985489B2 (en) 2014-02-21 2018-05-29 Doosan Heavy Industries & Construction Co., Ltd. Separated coolant circulation structure for water-cooled power generator and cooling method thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100351427B1 (en) * 2000-11-20 2002-09-05 두산중공업 주식회사 The process and device for repairing the leaks of water cooled the stator bars of the turbin generator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9985489B2 (en) 2014-02-21 2018-05-29 Doosan Heavy Industries & Construction Co., Ltd. Separated coolant circulation structure for water-cooled power generator and cooling method thereof

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