KR100928976B1 - Integral water clip without dissimilar metal brazing - Google Patents

Integral water clip without dissimilar metal brazing Download PDF

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Publication number
KR100928976B1
KR100928976B1 KR1020070082957A KR20070082957A KR100928976B1 KR 100928976 B1 KR100928976 B1 KR 100928976B1 KR 1020070082957 A KR1020070082957 A KR 1020070082957A KR 20070082957 A KR20070082957 A KR 20070082957A KR 100928976 B1 KR100928976 B1 KR 100928976B1
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South Korea
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water
water clip
clip
brazing
dissimilar metal
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KR1020070082957A
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Korean (ko)
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KR20090018484A (en
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강명국
이인수
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두산중공업 주식회사
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/24—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1823—Rotary generators structurally associated with turbines or similar engines
    • H02K7/183—Rotary generators structurally associated with turbines or similar engines wherein the turbine is a wind turbine
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
    • 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
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Windings For Motors And Generators (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

본 발명은 냉각수 유출입부에 브레이징 개소를 없애 냉각수 누수를 원천적으로 방지할 수 있도록 한 이종금속 브레이징이 없는 워터 클립을 제공하기 위한 것으로, 본 발명의 구체적인 수단은, 발전기의 고정자 권선으로 냉각수를 유출입시킴과 동시에 상,하부 권선을 전기적으로 연결시키는 기능을 수행하는 워터 클립에 있어서, 냉각수 유출입이 이루어지는 유입홀을 형성시키는 돌출된 연결보스부가 워터 클립 몸체의 일단측에 일체로 구비된 것을 특징으로 한다.The present invention is to provide a water clip without the dissimilar metal brazing to prevent the cooling water leakage by eliminating the brazing point in the cooling water inlet, the specific means of the present invention, the cooling water flows into the stator winding of the generator And at the same time the water clip to perform the function of electrically connecting the upper and lower windings, characterized in that the protruding connecting boss for forming an inlet hole in which the cooling water flows in and out is provided integrally on one end of the water clip body.

워터클립, 발전기, 고정자 권선 Water clips, generators, stator windings

Description

이종금속 브레이징이 없는 일체형 워터 클립{Water clip being without a different kind metal brazing}Water clip being without a different kind metal brazing}

본 고안은 발전기 고정자 권선 냉각을 위해 고정자 권선으로 냉각수를 유입,유출 시키는 냉각수의 출입구 역할과 상부 권선과 하부 권선을 전기적으로 연결시키는 역할을 동시에 수행해야 하는 워터 클립에 관한 것으로, 특히 브레이징 개소를 없애 냉각수 누수를 원천적으로 방지할 수 있도록 한 이종금속 브레이징이 없는 워터 클립에 관한 것이다.The present invention relates to a water clip that must simultaneously perform the role of the cooling water inlet and outlet of the cooling water inlet and outlet of the cooling water to the stator winding and the electrical connection between the upper and lower windings. The present invention relates to a water clip without dissimilar metal brazing to prevent leakage of coolant at its source.

발전기에서 고정자 권선은 회전자에서 발생된 자속(flux)과 쇄교하고, 이때 유기되는 전류가 흐를 수 있도록 하는 통로 역할을 수행한다. 고정자 권선은 용량에 따라 보통냉각, 즉 공기 또는 수소로 냉각 시키는 간접냉각 방식과 권선 내부에 직접 가스(Gas) 또는 액체를 통하게 하여 냉각 시키는 직접냉각 방식으로 구분된다. 구조적으로 고정자 권선은 전기 에너지의 통로인 나동(Copper)부, 이 전기 에너지에 의해 발생된 열을 냉각 시키기 위한 냉각부와 대지전압에 견딜 수 있는 두꺼운 절연층으로 이루어져 있다.In the generator, the stator windings link with flux generated in the rotor, and serve as a passage through which induced current flows. The stator winding is divided into normal cooling, indirect cooling by cooling with air or hydrogen, and direct cooling by cooling with gas or liquid inside the winding, depending on the capacity. Structurally, the stator winding consists of a copper part, a passage for electric energy, a cooling part for cooling the heat generated by the electric energy, and a thick insulating layer capable of withstanding earth voltage.

권선을 형성하는 소선(Strand)은 각각 절연이 되어 있는데 이는 주위의 전자에 의한 손실을 방지하기 위함이며 2열 또는 4열로 나누어져 몇 층으로 포개진 형태를 이루고 있다.The strands forming the windings are insulated from each other in order to prevent losses due to the surrounding electrons. The strands are divided into two or four rows to form several layers.

각 권선을 형성하고 있는 소선들을 슬롯트(Slot) 영역에서 그 길이를 따라 상하, 좌우 그 위치를 변환 시키는 전위(Transposition)가 채택된다.Transposition is adopted to convert the wires forming each winding up, down, left and right along its length in the slot area.

하나의 권선은 자체가 대지전압에 충분히 견디도록 두꺼운 절연물로 덮여져 있다. 수냉각 권선 단면은 소선 전부가 중공 소선 (Hollow Strand)으로 된 권선과 중실소선(Solid Strand)과 중공 소선이 혼합된 혼합형(Mixed Strand)으로 구분될 수 있다. One winding is covered with a thick insulator so that it withstands earth voltage sufficiently. The water-cooled winding cross section may be divided into windings in which all the strands are hollow strands and mixed strands in which solid strands and hollow strands are mixed.

수냉각 권선인 경우, 각 소선으로 흐르는 냉각수를 모이게 하는 워터 클립(Water Clip)이 권선 끝단에 조립되어 있다.In the case of a water cooling winding, a water clip for collecting the cooling water flowing in each element wire is assembled at the winding end.

종래의 워터 클립(100)은 도 1 및 도 2와 같이 워터 클립 몸체(102), 스테인레스 피팅(Fitting)(106) 및 슬리브(Sleeve)(104)의 3가지 조립 부품이 브레이징 작업으로 연결되었다.In the conventional water clip 100, as shown in FIGS. 1 and 2, three assembly parts of the water clip body 102, the stainless fitting 106, and the sleeve 104 are connected in a brazing operation.

이럴 경우, 브레이징 개소(108,109)가 많아지므로 누수의 가능성이 증가하는 것으로 나타났다.In this case, since the brazing points 108 and 109 are increased, the possibility of leakage increases.

이같이 전기 고정자 상부 권선과 하부 권선을 기계적, 전기적으로 연결하기 위해서는 워터 클립을 포함한 여러 조립부품의 브레이징 작업이 요구되며, 이 브레이징 개소가 많아질수록 냉각수 누수의 확률이 증대된다.In order to mechanically and electrically connect the electrical stator upper winding and the lower winding, brazing of several assemblies including a water clip is required, and as the brazing points increase, the probability of cooling water leakage increases.

냉각수가 누수 될 경우 발전 장치를 포함한 심각한 문제가 초래될 수 있으므 로 누수의 가능성을 조금이라도 더 줄여야 한다. 이를 충족시키기 위해 브레이징 개소를 최소로 줄이면서 워터 클립의 기능을 모두 수행할 수 있도록 구조를 단순화하고 연결 포인트를 줄여야 할 필요가 생긴다.If the coolant leaks, serious problems, including power generation equipment, can be caused, so the possibility of leakage should be reduced even further. To meet this, there is a need to simplify the structure and reduce the connection points so that the brazing point can be minimized and all the functions of the water clip can be performed.

따라서 본 발명은 상기와 같은 종래 기술의 문제점을 해결하기 위한 것으로, 냉각수 유출입부에 브레이징 개소를 없애 냉각수 누수를 원천적으로 방지할 수 있도록 한 이종금속 브레이징이 없는 워터 클립을 제공함에 그 목적이 있다.Accordingly, an object of the present invention is to provide a water clip without dissimilar metal brazing in which a cooling water leak can be prevented at the source by eliminating a brazing point at a cooling water inlet and outlet.

상기의 목적을 달성하기 위한 본 발명의 구체적인 수단은,Specific means of the present invention for achieving the above object,

발전기의 고정자 권선으로 냉각수를 유출입시킴과 동시에 상,하부 권선을 전기적으로 연결시키는 기능을 수행하는 워터 클립에 있어서,In the water clip that performs the function of electrically connecting the upper and lower windings while flowing in and out of the coolant to the stator windings of the generator,

냉각수 유출입이 이루어지는 유입홀을 형성시키는 돌출된 연결보스부가 워터 클립 몸체의 일단측에 일체로 구비된 것을 특징으로 한다.It characterized in that the protruding connecting boss for forming an inlet hole in which the coolant flows in and out is formed integrally on one end of the water clip body.

또한, 본 발명에 따르면 상기 연결보스부의 외주면에는 압력 시험을 위한 관로 조인팅용 환형홈이 더 형성되어 있는 것을 특징으로 한다.In addition, according to the present invention is characterized in that the outer peripheral surface of the connecting boss portion is further formed with an annular groove for the pipe joint for pressure test.

본 발명의 이종금속 브레이징이 없는 워터 클립에 따르면, 냉각수 유출입구부에 브레이징 개소를 없애 냉각수 누수를 원천적으로 방지할 수 있고, 조립 부품수를 줄여 제작원가를 절감할 수 있다.According to the water clip without the brazing dissimilar metal of the present invention, it is possible to prevent the leakage of the coolant by eliminating the brazing point at the cooling water outlet and reduce the manufacturing cost by reducing the number of assembly parts.

이하, 첨부된 도면을 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.

본 발명의 워터 클립(10)은 도 3 및 도 4와 같이 구성되어 발전기의 고정자 권선으로 냉각수를 유출입시킴과 동시에 상,하부 권선을 전기적으로 연결시키는 기능을 수행한다.The water clip 10 of the present invention is configured as shown in Figures 3 and 4 performs the function of electrically connecting the upper and lower windings while flowing in and out of the coolant to the stator windings of the generator.

도 3은 본 발명에 따른 이종금속 브레이징이 없는 워터 클립(10)의 사시도이고, 도 4는 도 3의 워터 클립(10) 요부가 절취된 평면도이다.FIG. 3 is a perspective view of a water clip 10 without dissimilar metal brazing according to the present invention, and FIG. 4 is a plan view of the water clip 10 of FIG.

도 3 및 도 4에서 도시된 바와 같이 본 발명은 워터 클립 몸체(12)의 일단측 냉각수 유출입부에 유입홀(14)을 형성시키는 돌출된 연결보스부(16)가 워터 클립 몸체(12)에 일체로 형성된 것이다.As shown in FIG. 3 and FIG. 4, in the present invention, a protruding connecting boss portion 16 for forming an inlet hole 14 at one end of the coolant inlet and outlet of the water clip body 12 is provided in the water clip body 12. It is formed integrally.

즉, 연결보스부(16)는 워터 클립 몸체(12)와 동일한 재질로서 워터 클립 몸체(12)와 일체의 성형품으로 제작된다.That is, the connecting boss 16 is made of the same material as the water clip body 12 and is formed of a molded article integral with the water clip body 12.

이때 상기 연결보스부(16)의 외주면에는 압력 시험을 위한 관로 조인팅용 환형홈(16a)이 더 형성될 수 있다.At this time, the outer circumferential surface of the connecting boss portion 16 may be further formed with an annular groove (16a) for the pipe joint for pressure test.

압력 시험 시 관로 조인팅용 환형홈(16a)에는 연결보스부(16)에 삽입된 도시안된 주지의 배관접속용 커넥터가 연결된다.In the pressure test, an annular groove (16a) for connecting the pipe line is connected to a known pipe connection connector not shown in the insertion boss portion (16).

이같이 전기 고정자 상부 권선과 하부 권선을 기계적, 전기적으로 연결함과 동시에 냉각수의 유출입을 담당하는 워터 클립(10)은 그의 냉각수 유출입부에 일체형으로 연결보스부(16)가 형성됨으로써 브레이징이 필요 없어지게 된다.As such, the water clip 10, which mechanically and electrically connects the upper and lower windings of the electric stator and is responsible for the inflow and outflow of the coolant, forms a connection boss 16 integrally with the coolant inflow and outflow, thereby eliminating the need for brazing. do.

따라서 워터 클립(10)은 조립부품수가 없어져 구조가 단순해질 뿐만 아니라 브레이징이 제거됨으로써 냉각수 유출입시 접속 밀착력을 확보하게 되고, 이로 인해 냉각수 누수의 발생이 없어지게 된다.Therefore, the water clip 10 is not only a simple structure due to the loss of assembly parts, but also the brazing is removed to secure the contact adhesion when the coolant flows in and out, thereby eliminating the occurrence of coolant leakage.

따라서 본 발명의 워터클립은, 발전기 고정자권선 냉각을 위해 고정자 권선으로 냉각수를 유입,유출 시키는 냉각수의 출입구 역할과 상부 권선과 하부 권선을 전기적으로 연결시키는 역할을 동시에 수행해야 하는데 사용되며, 특히 브레이징 개소를 없애 냉각수 누수를 원천적으로 방지할 수 있는데 유용하다.Therefore, the water clip of the present invention is used to perform the role of the entrance and exit of the cooling water to electrically cool the inlet and outflow of the coolant to the stator winding for the generator stator winding cooling, and the role of electrically connecting the upper and lower windings, in particular brazing point It is useful to prevent the leakage of coolant at source.

도 1은 종래 워터 클립의 사시도.1 is a perspective view of a conventional water clip.

도 2는 도 1의 요부가 절취된 평면도.2 is a plan view of the main portion of FIG.

도 3은 본 발명에 따른 이종금속 브레이징이 없는 워터 클립의 사시도.3 is a perspective view of a water clip without dissimilar metal brazing according to the present invention;

도 4는 도 3의 요부가 절취된 평면도.4 is a plan view of the main portion of FIG.

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

10: 워터클립10: Water Clip

14: 유입홀14: inlet hole

16: 연결보스부16: connecting boss

16a: 환형홈16a: annular groove

Claims (2)

발전기의 고정자 권선으로 냉각수를 유출입시킴과 동시에 상,하부 권선을 전기적으로 연결시키는 기능을 수행하는 워터 클립(10)에 있어서,In the water clip (10) to perform the function of electrically connecting the upper and lower windings while flowing in and out of the coolant to the stator windings of the generator, 냉각수 유출입이 이루어지는 유입홀(14)을 형성시키는 돌출된 연결보스부(16)가 워터 클립 몸체(12)의 일단부에 일체로 구비된 것을 특징으로 하는 이종금속 브레이징이 없는 일체형 워터 클립.An integral water clip without dissimilar metal brazing, characterized in that the protruding connecting boss portion 16 forming the inlet hole 14 through which the coolant flows in and out is formed integrally with one end of the water clip body 12. 제 1항에 있어서,The method of claim 1, 상기 연결보스부(16)의 외주면에는 압력 시험을 위한 관로 조인팅용 환형홈(16a)이 더 형성되어 있는 것을 특징으로 하는 이종금속 브레이징이 없는 일체형 워터 클립.The outer circumferential surface of the connecting boss 16 is an integral water clip without brazing dissimilar metal, characterized in that an annular groove 16a for joining the pipe for pressure test is further formed.
KR1020070082957A 2007-08-17 2007-08-17 Integral water clip without dissimilar metal brazing KR100928976B1 (en)

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KR101529422B1 (en) * 2014-01-06 2015-06-17 한전케이피에스 주식회사 Cooling device for generator stator maintenance
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Citations (4)

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Publication number Priority date Publication date Assignee Title
KR20000070182A (en) * 1997-02-05 2000-11-25 랭크 크리스토퍼 제이 Flexible gas tight electrical connection for generators
KR20010101636A (en) * 1999-11-24 2001-11-14 클라우스 포스, 게오르그 뮐러 Fluid pump with a motor housing and a method for the production of a motor housing
KR100303670B1 (en) 1995-05-22 2001-11-22 제이 엘. 차스킨, 버나드 스나이더, 아더엠. 킹 Method for sealing connections at ends of fluid-cooled stator bars for generators
KR20020039053A (en) * 2000-11-20 2002-05-25 윤영석 The process and device for repairing the leaks of water cooled the stator bars of the turbin generator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100303670B1 (en) 1995-05-22 2001-11-22 제이 엘. 차스킨, 버나드 스나이더, 아더엠. 킹 Method for sealing connections at ends of fluid-cooled stator bars for generators
KR20000070182A (en) * 1997-02-05 2000-11-25 랭크 크리스토퍼 제이 Flexible gas tight electrical connection for generators
KR20010101636A (en) * 1999-11-24 2001-11-14 클라우스 포스, 게오르그 뮐러 Fluid pump with a motor housing and a method for the production of a motor housing
KR20020039053A (en) * 2000-11-20 2002-05-25 윤영석 The process and device for repairing the leaks of water cooled the stator bars of the turbin generator

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