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KR101257876B1 - Floating Sealing Apparatus For a Gas Turbine - Google Patents

Floating Sealing Apparatus For a Gas Turbine Download PDF

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Publication number
KR101257876B1
KR101257876B1 KR1020100131548A KR20100131548A KR101257876B1 KR 101257876 B1 KR101257876 B1 KR 101257876B1 KR 1020100131548 A KR1020100131548 A KR 1020100131548A KR 20100131548 A KR20100131548 A KR 20100131548A KR 101257876 B1 KR101257876 B1 KR 101257876B1
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South Korea
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sealing member
floating sealing
component
floating
insertion groove
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KR20120070121A (en
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정성철
김경국
김기백
천무환
이상언
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두산중공업 주식회사
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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
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/28—Arrangement of seals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • 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
    • F05D2240/00—Components
    • F05D2240/55—Seals

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Gasket Seals (AREA)

Abstract

본 발명은 제1부품의 외부 둘레에 제2부품이 설치되고, 축방향 열팽창이 서로 다른 방향으로 진행되는 두 부품 사이의 간극을 링형의 플로팅 씰링부재를 통해 안정적으로 밀폐하여 유체의 누출을 방지할 수 있도록 하는 가스터빈의 플로팅 씰링 장치를 구성함에 있어서, 상기 제2부품의 내주 또는 상기 제1부품의 외주에 마련한 링형의 씰링부재 삽입홈에 링형의 플로팅 씰링부재를 삽입 설치하고, 상기 플로팅 씰링부재의 내주면 또는 상기 플로팅 씰링부재의 외주면을 상기 제1부품의 외주면 또는 상기 제2부품의 내주면에 밀착시킨 것이다.According to the present invention, a second component is installed around the outer periphery of the first component, and a gap between two components in which axial thermal expansion proceeds in different directions is stably sealed through a ring-shaped floating sealing member to prevent leakage of fluid. In forming a floating sealing device for a gas turbine, a ring-shaped floating sealing member is inserted into a ring-shaped sealing member insertion groove provided in an inner circumference of the second part or an outer circumference of the first part, and the floating sealing member is installed. The inner circumferential surface or the outer circumferential surface of the floating sealing member is in close contact with the outer circumferential surface of the first component or the inner circumferential surface of the second component.

Description

가스터빈의 플로팅 씰링 장치 {Floating Sealing Apparatus For a Gas Turbine}Floating Sealing Apparatus For a Gas Turbine

본 발명은 가스터빈의 플로팅 씰링 장치에 관한 것으로, 더 자세하게는 축방향 열팽창이 서로 다른 방향으로 진행되는 두 부품 사이의 간극을 안정적으로 밀폐할 수 있고 동시에 조립 시 미스얼라인먼트(misalignment)를 보상할 수 있도록 한 것에 관한 것이다.The present invention relates to a floating sealing device of a gas turbine, and more particularly, to stably close the gap between two parts in which axial thermal expansion proceeds in different directions, and at the same time, to compensate for misalignment during assembly. It's about what you do.

일반적으로 가스터빈 엔진 케이스(Gas turbine engine case)와 배기가스 디퓨저(Exhaust gas diffuser)의 연결 부위에는 배기가스의 누출을 방지할 수 있도록 하는 씰링부재가 설치된다.In general, a sealing member is installed at a connection portion of a gas turbine engine case and an exhaust gas diffuser to prevent leakage of exhaust gas.

상기 배기가스 디퓨저 연결부위에서는 가스터빈 엔진 케이스의 축방향 열팽창이 배기가스 디퓨저 쪽을 진행되고, 배기가스 디퓨저의 축방향 열팽창이 가스터빈 엔진 케이스 쪽으로 진행되는 등 서로 반대방향으로 축방향 열팽창이 일어나게 되는데, 종래에는 이러한 축방향 열팽창 과정에서 가스터빈 엔진 케이스와 배기가스 디퓨저와의 사이에 설치되는 씰링부재가 손상되어 배기가스가 누출되는 문제가 있었다.At the exhaust gas diffuser connection, axial thermal expansion of the gas turbine engine case proceeds toward the exhaust gas diffuser, and axial thermal expansion of the exhaust gas diffuser proceeds toward the gas turbine engine case, and thus axial thermal expansion occurs in opposite directions. In the related art, in the axial thermal expansion process, the sealing member installed between the gas turbine engine case and the exhaust gas diffuser is damaged and the exhaust gas leaks.

또한 가스터빈 연소기의 트랜지션 피스(Transition piece)와 터빈 베인의 내부 고정체(Inner support)의 연결부위와 같이 축방향 열팽창이 서로 다른 방향으로 진행되는 다른 연결 부위에서도 마찬가지로 씰링부재의 손상으로 냉각공기가 누출되는 문제가 있었다. In addition, other parts of the joint where the axial thermal expansion proceeds in different directions, such as the transition piece of the gas turbine combustor and the inner support of the turbine vane, can also cause the cooling air to damage the sealing member. There was a problem of leakage.

이처럼 종래에는 축방향 열팽창이 서로 다른 방향으로 진행되는 두 부품 사이의 간극을 씰링부재를 통해 안정적으로 밀폐하기가 어렵게 되는 문제가 있었다.As described above, there is a problem that it is difficult to stably seal the gap between the two parts in which the axial thermal expansion proceeds in different directions through the sealing member.

더욱이 서로 다른 이들 부품들간에 조립공차 누적으로 인하여 조립 시 씰링간극을 유지하면서 얼라인먼트(alignment)를 정확히 하는데 많은 어려움이 있었다.Moreover, due to the accumulation of assembly tolerances between these different parts, there have been many difficulties in correct alignment while maintaining the sealing gap during assembly.

본 발명은 상기와 같은 종래의 실정을 감안하여 안출한 것이며, 그 목적이 축방향 열팽창이 서로 다른 방향으로 진행되는 두 부품 사이의 간극을 안정적으로 밀폐하여 유체의 누출이 발생되지 않도록 하는 동시에 두 부품의 조립시 미스얼라인먼트(misalignment)도 충분히 보상할 수 있게 하는 가스터빈의 플로팅 씰링 장치를 제공하는 데에 있는 것이다.The present invention has been made in view of the above-described conventional situation, and its purpose is to stably seal the gap between two parts in which axial thermal expansion proceeds in different directions, so that no leakage of fluid occurs and at the same time, the two parts It is to provide a floating sealing device of a gas turbine that can sufficiently compensate for misalignment in assembling.

상기의 목적을 달성하기 위한 본 발명은 제1부품의 외부 둘레에 제2부품이 설치되고, 축방향 열팽창이 서로 다른 방향으로 진행되는 두 부품 사이의 간극을 링형의 플로팅 씰링부재를 통해 안정적으로 밀폐하여 유체의 누출을 방지할 수 있도록 하는 가스터빈의 플로팅 씰링 장치를 구성함에 있어서, 상기 제2부품의 내주 또는 상기 제1부품의 외주에 마련한 링형의 씰링부재 삽입홈에 링형의 플로팅 씰링부재를 삽입 설치하고, 상기 플로팅 씰링부재의 내주면 또는 상기 플로팅 씰링부재의 외주면을 상기 제1부품의 외주면 또는 상기 제2부품의 내주면에 밀착시킨 것이다.According to the present invention for achieving the above object, the second part is installed on the outer circumference of the first part, and the gap between the two parts in which the axial thermal expansion proceeds in different directions is stably sealed through the ring-shaped floating sealing member. In the floating sealing device of the gas turbine so as to prevent the leakage of the fluid so that the ring-shaped floating sealing member is inserted into the ring-shaped sealing member insertion groove provided in the inner circumference of the second part or the outer circumference of the first part And the inner circumferential surface of the floating sealing member or the outer circumferential surface of the floating sealing member is brought into close contact with the outer circumferential surface of the first component or the inner circumferential surface of the second component.

본 발명의 가스터빈의 플로팅 씰링 장치는 제2부품의 내주에 마련된 씰링부재 삽입홈에 플로팅 씰링부재가 삽입 설치되고, 상기 플로팅 씰링부재의 내주면이 제1부품의 외주면에 밀착되며, 제1부품과 플로팅 씰링부재가 동일 소재로 구성되고, 씰링부재 삽입홈의 깊이가 플로팅 씰링부재의 삽입 길이보다 크게 형성된 형태로 구성될 수 있으며, 제2부품의 씰링부재 설치부위가 씰링부재 삽입홈의 내부 일측을 기준으로 두 부분으로 분리되어 체결볼트로 조립된 형태로 구성할 수 있다.In the floating sealing device of the gas turbine of the present invention, the floating sealing member is inserted into the sealing member insertion groove provided in the inner circumference of the second part, and the inner circumferential surface of the floating sealing member is in close contact with the outer circumferential surface of the first part. The floating sealing member may be made of the same material, and the depth of the sealing member insertion groove may be formed to be larger than the insertion length of the floating sealing member, and the sealing member installation portion of the second part may have an inner side of the sealing member insertion groove. It can be configured in the form of assembled into fastening bolts separated into two parts as a reference.

아울러 본 발명의 가스터빈의 플로팅 씰링 장치는 제1부품의 외주에 마련된 씰링부재 삽입홈에 플로팅 씰링부재가 삽입 설치되고, 상기 플로팅 씰링부재의 내주면이 제2부품의 내주면에 밀착되며, 플로팅 씰링부재의 소재가 제1부품과 동일 소재인 동시에 제2부품보다 열팽창률이 큰 소재로 구성되고, 씰링부재 삽입홈의 깊이가 플로팅 씰링부재의 삽입 길이보다 크게 형성된 형태로 구성될 수 있으며, 제1부품의 외주면에 씰링부재 삽입홈이 일체로 형성되고, 일측에 절결부가 마련된 한 쌍의 플로팅 씰링부재가 겹쳐진 상태로 씰링부재 삽입홈에 삽입 설치된 형태로 구성될 수 있다.In addition, the floating sealing device of the gas turbine of the present invention, the floating sealing member is inserted into the sealing member insertion groove provided on the outer periphery of the first component, the inner peripheral surface of the floating sealing member is in close contact with the inner peripheral surface of the second component, the floating sealing member Is made of the same material as the first part and a material having a higher thermal expansion coefficient than the second part, and the depth of the sealing member insertion groove is formed to be larger than the insertion length of the floating sealing member. The sealing member insertion groove is integrally formed on the outer circumferential surface of the pair, and a pair of floating sealing members having a cutout at one side thereof may be inserted into the sealing member insertion groove in a state where the floating sealing member is overlapped.

본 발명의 가스터빈의 플로팅 씰링 장치에 의하면 축방향 열팽창이 서로 다른 방향으로 진행되는 두 부품 사이의 간극을 보다 안정적으로 밀폐하여 유체의 누출을 방지할 수 있게 됨은 물론 씰링부재의 파손을 방지할 수 있게 되며, 그에 따라 가스터빈의 효율을 크게 향상시킬 수 있게 되는 등의 효과를 얻을 수 있게 된다.According to the floating sealing device of the gas turbine of the present invention, the gap between the two parts in which the axial thermal expansion proceeds in different directions can be more stably sealed to prevent the leakage of the fluid, as well as the damage of the sealing member. As a result, it is possible to obtain an effect of greatly improving the efficiency of the gas turbine.

도 1은 본 발명의 한 실시예의 요부 종단면도
도 2는 본 발명의 다른 실시예의 요부 종단면도
도 3은 동 다른 실시예의 플로팅 씰링부재의 사시도1 is a longitudinal sectional view showing main parts of one embodiment of the present invention;
2 is a longitudinal sectional view showing main parts of another embodiment of the present invention;
3 is a perspective view of a floating sealing member of another embodiment

이하 상기의 목적을 달성하기 위한 본 발명의 구체적인 기술 내용을 첨부도면에 의거하여 자세히 설명하면 다음과 같다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

도 1에는 본 발명의 한 실시예의 요부 종단면도가 도시되어 있고, 도 2에는 본 발명의 다른 실시예의 요부 종단면도가 도시되어 있으며, 도 3에는 동 다른 실시예의 플로팅 씰링부재의 사시도가 도시되어 있다.1 is a longitudinal sectional view of a main part of an embodiment of the present invention, FIG. 2 is a longitudinal sectional view of a main part of another embodiment of the present invention, and FIG. 3 is a perspective view of a floating sealing member of the other embodiment. .

본 발명은 제1부품(110)의 외부 둘레에 제2부품(120)이 설치되고, 축방향 열팽창이 서로 다른 방향으로 진행되는 두 부품(110)(120) 사이의 간극을 링형의 플로팅 씰링부재(130)를 통해 안정적으로 밀폐하여 유체의 누출을 방지할 수 있도록 하는 가스터빈의 플로팅 씰링 장치를 구성함에 있어서,According to the present invention, the second component 120 is installed at the outer circumference of the first component 110, and the gap between the two components 110 and 120 where the axial thermal expansion proceeds in different directions is ring-shaped floating sealing member. In constructing a floating sealing device of the gas turbine to reliably seal through the 130 to prevent the leakage of fluid,

상기 제2부품(120)의 내주 또는 상기 제1부품(110)의 외주에 마련한 링형의 씰링부재 삽입홈(121)(111)에 링형의 플로팅 씰링부재(130)를 삽입 설치하고, 상기 플로팅 씰링부재(130)의 내주면 또는 상기 플로팅 씰링부재(130)의 외주면을 상기 제1부품(110)의 외주면 또는 상기 제2부품(120)의 내주면에 밀착시킨 것이다.The ring-shaped floating sealing member 130 is inserted into and installed in the ring-shaped sealing member insertion groove 121 and 111 provided on the inner circumference of the second component 120 or the outer circumference of the first component 110. The inner circumferential surface of the member 130 or the outer circumferential surface of the floating sealing member 130 is brought into close contact with the outer circumferential surface of the first component 110 or the inner circumferential surface of the second component 120.

도 1에 도시된 본 발명의 한 실시예는 제2부품(120)의 내주에 마련된 씰링부재 삽입홈(121)에 플로팅 씰링부재(130)가 삽입 설치되고, 상기 플로팅 씰링부재(130)의 내주면이 제1부품(110)의 외주면에 밀착되는 형태이며, 제1부품(110)과 플로팅 씰링부재(130)가 동일 소재로 구성되고, 씰링부재 삽입홈(121)의 깊이가 플로팅 씰링부재(130)의 삽입 길이보다 크게 형성된 형태이다.In one embodiment of the present invention shown in Figure 1 is a floating sealing member 130 is inserted into the sealing member insertion groove 121 provided in the inner circumference of the second component 120, the inner peripheral surface of the floating sealing member 130 The first component 110 is in close contact with the outer circumferential surface thereof, and the first component 110 and the floating sealing member 130 are made of the same material, and the depth of the sealing member insertion groove 121 has a floating sealing member 130. ) Is larger than the insertion length.

도 1의 본 발명의 한 실시예는 제2부품(120)의 씰링부재 설치부위가 씰링부재 삽입홈(121)의 내부 일측을 기준으로 두 부분으로 분리되어 있고, 분리된 두 부분이 체결볼트(140)로 조립되는 형태이기 때문에 씰링부재 삽입홈(121)에 플로팅 씰링부재(130)를 삽입 설치하는 데에 별다른 무리가 없다.In one embodiment of the present invention of Figure 1, the sealing member installation portion of the second part 120 is separated into two parts on the basis of the inner side of the sealing member insertion groove 121, the separated two parts fastening bolt ( 140 is assembled to form a floating sealing member 130 in the sealing member insertion groove 121, so there is no particular force.

상기 도 1의 본 발명의 한 실시예의 경우 동일 소재로 구성되는 제1부품(110)과 플로팅 씰링부재(130)의 반경방향 열팽창 정도가 같게 되어 제1부품(110)의 외주면과 플로팅 씰링부재(130)의 내주면이 항상 안정적인 밀착상태를 유지할 수 있게 되고, 제1부품(110)이 축방향으로 팽창할 때에 제1부품(110)의 외주면이 플로팅 씰링부재(130)의 내주면을 안정적으로 슬라이딩할 수 있게 되며, 그에 따라 제1부품(110)과 제2부품(120)이 축방향 및 반경방향으로 팽창하게 되더라도 플로팅 씰링부재(130)의 손상 없이 유체의 누출을 보다 확실하게 방지할 수 있게 된다.In the case of the embodiment of the present invention of Figure 1 the radial thermal expansion degree of the first component 110 and the floating sealing member 130 made of the same material is equal to the outer peripheral surface of the first component 110 and the floating sealing member ( The inner circumferential surface of 130 may maintain a stable close contact state at all times, and the outer circumferential surface of the first component 110 may stably slide the inner circumferential surface of the floating sealing member 130 when the first component 110 expands in the axial direction. Accordingly, even if the first component 110 and the second component 120 expand in the axial direction and the radial direction, the leakage of the fluid can be more reliably prevented without damaging the floating sealing member 130. .

또한 제2부품(120)의 내주면에 형성되는 씰링부재 삽입홈(121)의 깊이가 플로팅 씰링부재(130)의 삽입 길이보다 크게 형성되기 때문에 씰링부재 삽입홈(121)에서 플로팅 씰링부재(130)의 반경방향의 열팽창을 안정적으로 수용할 수 있게 되고, 제1부품(110)과 제2부품(120)의 조립과정에서의 미스얼라인먼트(misalignment)도 충분히 보상할 수 있게 된다.In addition, since the depth of the sealing member insertion groove 121 formed on the inner circumferential surface of the second part 120 is greater than the insertion length of the floating sealing member 130, the floating sealing member 130 in the sealing member insertion groove 121. It is possible to stably accommodate the thermal expansion in the radial direction, and also to fully compensate for misalignment (misalignment) in the assembly process of the first component 110 and the second component 120.

한편 도 2에 도시된 본 발명의 다른 실시예는 제1부품(110)의 외주에 마련된 씰링부재 삽입홈(111)에 플로팅 씰링부재(130)가 삽입 설치되고, 상기 플로팅 씰링부재(130)의 내주면이 제2부품(120)의 내주면에 밀착되는 형태이며, 플로팅 씰링부재(130)의 소재가 제1부품(110)과 동일 소재인 동시에 제2부품(120)보다 열팽창률이 큰 소재로 구성되고, 씰링부재 삽입홈(111)의 깊이가 플로팅 씰링부재(130)의 삽입 길이보다 크게 형성된 형태이다.On the other hand, another embodiment of the present invention shown in Figure 2 is a floating sealing member 130 is inserted into the sealing member insertion groove 111 provided on the outer periphery of the first component 110, the floating sealing member 130 of The inner circumferential surface is in close contact with the inner circumferential surface of the second part 120, and the material of the floating sealing member 130 is made of the same material as that of the first part 110 and has a higher coefficient of thermal expansion than the second part 120. The depth of the sealing member insertion groove 111 is greater than the insertion length of the floating sealing member 130.

도 2의 본 발명의 다른 실시예는 제1부품(110)의 외주면에 씰링부재 삽입홈(111)이 일체로 형성된 형태이므로 도 3과 같이 일측에 절결부(131)가 마련된 한 쌍의 플로팅 씰링부재(130)를 겹쳐서 씰링부재 삽입홈(121)에 삽입 설치한 것이다.Another embodiment of the present invention of Figure 2 is a sealing member insertion groove 111 is formed integrally on the outer peripheral surface of the first component 110, a pair of floating sealing provided with a cutout 131 on one side as shown in FIG. The member 130 is overlapped and installed in the sealing member insertion groove 121.

상기 도 2의 본 발명의 다른 실시예의 경우 동일 소재로 구성되는 플로팅 씰링부재(130)의 열팽창률이 제2부품(120)의 열팽창률보다 크기 때문에 가스터빈 엔진이 가동될 때에 플로팅 씰링부재(130)의 반경방향 열팽창이 제2부품(120)의 반경방향 열팽창보다 많게 되어 플로팅 씰링부재(130)의 외주면이 제2부품(120)의 내주면에 더욱 강하게 밀착(tight fitting)되며, 그에 따라 유체의 누출을 더욱 확실하게 방지된다.According to another embodiment of the present invention of FIG. 2, the floating sealing member 130 when the gas turbine engine is operated because the thermal expansion coefficient of the floating sealing member 130 made of the same material is greater than that of the second component 120. ) Is greater than the radial thermal expansion of the second part 120 so that the outer circumferential surface of the floating sealing member 130 is tighter tightly attached to the inner circumferential surface of the second part 120, thereby Leakage is more reliably prevented.

또한 이 다른 실시예서도 제1부품(110)의 외주면에 형성되는 씰링부재 삽입홈(111)의 깊이가 플로팅 씰링부재(130)의 삽입 길이보다 크게 형성되기 때문에 씰링부재 삽입홈(111)에서 플로팅 씰링부재(130)의 반경방향의 열팽창을 안정적으로 수용할 수 있게 되고, 제1부품(110)과 제2부품(120)의 조립과정에서의 미스얼라인먼트(misalignment)도 충분히 보상할 수 있게 된다.In addition, this embodiment also floats in the sealing member insertion groove 111 because the depth of the sealing member insertion groove 111 formed on the outer peripheral surface of the first component 110 is formed larger than the insertion length of the floating sealing member 130. The thermal expansion in the radial direction of the sealing member 130 can be accommodated stably, and misalignment during the assembly of the first component 110 and the second component 120 can be sufficiently compensated.

이상에서 설명한 본 발명은 전술한 설명에 의해 한정되는 것은 아니고, 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 여러 가지 치환, 변형 및 변경이 가능함은 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 있어 명백할 것이다.The present invention described above is not limited to the above description, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be obvious to you.

110 제1부품
111 씰링부재 삽입홈
120 제2부품
121 씰링부재 삽입홈
130 플로팅 씰링부재
131 절결부110 First Part
111 Sealing member insertion groove
120 Second Part
121 Sealing member insertion groove
130 floating sealing member
131 cutout

Claims (6)

제1부품(110)의 외부 둘레에 제2부품(120)이 설치되고, 축방향 열팽창이 서로 다른 방향으로 진행되는 두 부품(110)(120) 사이의 간극을 링형의 플로팅 씰링부재(130)를 통해 안정적으로 밀폐하여 유체의 누출을 방지할 수 있도록 하는 가스터빈의 플로팅 씰링 장치를 구성함에 있어서,
상기 제2부품(120)의 내주 또는 상기 제1부품(110)의 외주에 마련한 링형의 씰링부재 삽입홈(121)(111)에 링형의 플로팅 씰링부재(130)를 삽입 설치하고, 상기 플로팅 씰링부재(130)의 내주면 또는 상기 플로팅 씰링부재(130)의 외주면을 상기 제1부품(110)의 외주면 또는 상기 제2부품(120)의 내주면에 밀착시키고,
상기 플로팅 씰링부재(130)는 일측에 절결부(131)가 형성된 것을 특징으로 하는 가스터빈의 플로팅 씰링 장치.The second part 120 is installed at the outer circumference of the first part 110, and the gap between the two parts 110 and 120 in which the axial thermal expansion proceeds in different directions is ring-shaped floating sealing member 130. In constructing the floating sealing device of the gas turbine to reliably seal through to prevent the leakage of fluid,
The ring-shaped floating sealing member 130 is inserted into and installed in the ring-shaped sealing member insertion groove 121 and 111 provided on the inner circumference of the second component 120 or the outer circumference of the first component 110. The inner circumferential surface of the member 130 or the outer circumferential surface of the floating sealing member 130 is brought into close contact with the outer circumferential surface of the first component 110 or the inner circumferential surface of the second component 120,
The floating sealing member 130 is a floating sealing device of the gas turbine, characterized in that the cutout 131 is formed on one side. 제1항에 있어서, 제2부품(120)의 내주에 마련된 씰링부재 삽입홈(121)에 플로팅 씰링부재(130)가 삽입 설치되고, 상기 플로팅 씰링부재(130)의 내주면이 제1부품(110)의 외주면에 밀착되며, 제1부품(110)과 플로팅 씰링부재(130)가 동일 소재로 구성되고, 씰링부재 삽입홈(121)의 깊이가 플로팅 씰링부재(130)의 삽입 길이보다 크게 형성된 것을 특징으로 하는 가스터빈의 플로팅 씰링 장치.According to claim 1, Floating sealing member 130 is inserted into the sealing member insertion groove 121 provided in the inner circumference of the second component 120, the inner peripheral surface of the floating sealing member 130 is the first component 110 The first component 110 and the floating sealing member 130 are made of the same material, and the depth of the sealing member insertion groove 121 is greater than the insertion length of the floating sealing member 130. Floating sealing device for a gas turbine. 제2항에 있어서, 제2부품(120)의 씰링부재 설치부위가 씰링부재 삽입홈(121)의 내부 일측을 기준으로 두 부분으로 분리되어 있고, 분리된 두 부분이 체결볼트(140)로 조립되는 것을 특징으로 하는 가스터빈의 플로팅 씰링 장치.According to claim 2, The sealing member installation portion of the second component 120 is separated into two parts based on the inner side of the sealing member insertion groove 121, the separated two parts are assembled by the fastening bolt 140 Floating sealing device of the gas turbine, characterized in that the. 제1항에 있어서, 제1부품(110)의 외주에 마련된 씰링부재 삽입홈(111)에 플로팅 씰링부재(130)가 삽입 설치되고, 상기 플로팅 씰링부재(130)의 내주면이 제2부품(120)의 내주면에 밀착되며, 플로팅 씰링부재(130)의 소재가 제1부품(110)과 동일 소재인 동시에 제2부품(120)보다 열팽창률이 큰 소재로 구성되고, 씰링부재 삽입홈(111)의 깊이가 플로팅 씰링부재(130)의 삽입 길이보다 크게 형성된 것을 특징으로 하는 가스터빈의 플로팅 씰링 장치.The method of claim 1, wherein the floating sealing member 130 is inserted into the sealing member insertion groove 111 provided on the outer circumference of the first component 110, the inner peripheral surface of the floating sealing member 130 is the second component 120 The material of the floating sealing member 130 is made of the same material as that of the first part 110 and the thermal expansion coefficient is greater than that of the second part 120, and the sealing member insertion groove 111 Floating sealing device of the gas turbine, characterized in that the depth of the formed larger than the insertion length of the floating sealing member (130). 제4항에 있어서, 제1부품(110)의 외주면에 씰링부재 삽입홈(111)이 일체로 형성되고, 상기 플로팅 씰링부재(130)가 한 쌍이 겹쳐진 상태로 씰링부재 삽입홈(121)에 삽입 설치된 것을 특징으로 하는 가스터빈의 플로팅 씰링 장치. The method of claim 4, wherein the sealing member insertion groove 111 is integrally formed on the outer circumferential surface of the first component 110, the floating sealing member 130 is inserted into the sealing member insertion groove 121 in a state where a pair of the floating sealing member 130 is overlapped. Floating sealing device for a gas turbine, characterized in that installed. 삭제delete
KR1020100131548A 2010-12-21 2010-12-21 Floating Sealing Apparatus For a Gas Turbine Active KR101257876B1 (en)

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JP2004084639A (en) * 2002-08-29 2004-03-18 Ishikawajima Harima Heavy Ind Co Ltd Sealing device for duct connection part to annular part

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