KR101506190B1 - An insulated gasket for high temperature and pressure having metal o ring - Google Patents

An insulated gasket for high temperature and pressure having metal o ring Download PDF

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Publication number
KR101506190B1
KR101506190B1 KR1020130129812A KR20130129812A KR101506190B1 KR 101506190 B1 KR101506190 B1 KR 101506190B1 KR 1020130129812 A KR1020130129812 A KR 1020130129812A KR 20130129812 A KR20130129812 A KR 20130129812A KR 101506190 B1 KR101506190 B1 KR 101506190B1
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South Korea
Prior art keywords
sealing member
temperature
pressure
ring
metal
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KR1020130129812A
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Korean (ko)
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김진태
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제일 이엔에스 주식회사
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Priority to KR1020130129812A priority Critical patent/KR101506190B1/en
Priority to PCT/KR2013/011546 priority patent/WO2015064825A1/en
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    • 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
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/16—Flanged joints characterised by the sealing means
    • 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
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/16—Flanged joints characterised by the sealing means
    • F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
    • F16L25/02—Electrically insulating joints or couplings
    • F16L25/026—Electrically insulating joints or couplings for flanged joints

Abstract

The present invention relates to a high-temperature and high-pressure insulation gasket with a metal O-ring, which comprises: a stainless disc having glass reinforced epoxy (GRE)-made insulation support plates attached to both surfaces thereof; a primary sealing member with a polytetrafluoroethylene (PTEF)-made shell having a reinforced spring mounted therein; and a secondary sealing member with the metal O-ring. The high-temperature and high-pressure insulation gasket according to the present invention is capable of preventing a secondary damage due to the loss of a fluid in case of fire by having the primary sealing member, and is capable of having a sealing performance and an insulating performance at a high temperature by having the secondary sealing member to complement weakness that the sealing performance of the primary sealing member is deteriorated by thermal deformation caused in the primary sealing member by the high temperature, thereby widely applying the high-temperature and high-pressure insulation gasket to various fields such as a valve bonnet, a tube flange, a heat exchanger or a pressure vessel.

Description

금속제 O링 장착 고온고압용 절연가스켓{AN INSULATED GASKET FOR HIGH TEMPERATURE AND PRESSURE HAVING METAL O RING}BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an insulating gasket for a high-

본 발명은 금속제 O링 장착 고온고압용 절연가스켓에 관한 것으로, 더욱 상세하게는 GRE(Glass Reinforced Epox) 소재의 절연지지판이 양면에 부착된 스테인리스 소재 원판과, PTFE(Polytetrafluoroethylene) 소재의 쉘(shell) 내부에 보강스프링이 장착된 구조의 1차 밀봉부재 및 금속제 O링 구조의 2차 밀봉부재가 구비된 구조로서, 고온에서 뛰어난 밀봉성능과 절연성능을 갖는 고온고압용 절연가스켓에 관한 것이다.
The present invention relates to a metal O-ring-equipped insulating gasket for high temperature and high pressure, and more particularly, to a gasket for a high-temperature and high-pressure insulating gasket, which comprises a stainless steel base plate having an insulating support plate of GRE (Glass Reinforced Epox) The present invention relates to a high-temperature, high-pressure insulating gasket having a sealing member having a structure in which a reinforcing spring is mounted inside and a secondary sealing member having a metallic O-ring structure.

일반적으로, 가스켓은 주로 정지된 두 관체 사이에 끼워져 그 관체간의 틈새로 유체가 누설되는 것을 차단시키기 위한 부품으로, 밸브 또는 파이프 등의 유체가 이송되는 두 결합부위 사이에 개재되어 유체의 누출을 방지함과 동시에 외부로부터 이물질이 내부로 유입되는 것을 방지하기 위한 실링기능을 갖도록 구성된다.
Generally, a gasket is interposed between two stationary pipes to block the leakage of the fluid to the gap between the pipes. The gasket is interposed between two connecting parts where a fluid such as a valve or a pipe is transported, And has a sealing function for preventing foreign matter from entering from the outside.

상기와 같은 구성을 갖는 가스켓은 밸브 또는 파이프 등을 연결하기 위한 플랜지 사이에 조립되어 축방향으로 가해지는 압축력에 의해서 그 부피가 압축되면서 플랜지 사이를 외부로부터 차단시키는 기능을 하며, 이때, 가스켓은 밸브 또는 파이프 등의 유체와 접촉하는 동시에 외부공기와 접촉하게 되고, 유체의 온도와 외부 공기의 상당한 온도차이에 따른 열수축 또는 열팽창 등에 의한 열변형이 수반되며, 가스켓에는 밸브 또는 파이프 등의 유체의 고온과 고압 그리고 플랜지의 과체결압력으로 인해 여러 가지의 변형과 손상이 발생되면서 실링성의 저하를 초래하는 등의 문제점이 발생하게 된다.
The gasket having the above-described structure is assembled between flanges for connecting a valve or a pipe, compresses the volume of the gasket by a compressive force applied in the axial direction, and functions to cut off the flanges from the outside. At this time, Or pipes and the like, and is brought into contact with the outside air, and is accompanied by thermal deformation due to heat shrinkage or thermal expansion due to a considerable temperature difference between the temperature of the fluid and the outside air. The gasket is provided with a high temperature High pressure and over-tightening pressure of the flange cause various deformations and damages, resulting in deterioration of the sealability.

따라서, 본 출원인은 상기와 같은 문제점을 개선하기 위한 방안으로 특허문헌 1에 게재된 바와 같은 구조를 갖는 고온고압용 절연가스켓을 개발하여 특허출원한 바 있으며, 상기 고온고압용 절연가스켓은 도 1에 도시된 바와 같이 가스켓의 형상 및 동심원을 유지시키는 센터링(centering)을 하도록 구성된 금속평면외륜(30)과, 상기 금속평면외륜(30)의 내측에 일체형으로 형성되면서 그 상하면에 각각 동심원을 갖는 산과 골이 각각 둥근 철면(凸面)을 이루도록 형성된 톱니형의 요철이 구비되는 제2금속톱니형본체(21)와, 상기 제2금속톱니형본체(21)의 상하면에 각각 접착되는 운모 재질의 상하부무기질적층시트(10,11)로 구성되는 것을 특징으로 하는 고온고압용 절연가스켓에 관한 것이나 높은 온도가 적용될 경우 금속부의 열적 변화로 인한 팽창으로 인한 씰링써클(Sealing Circle)이 파손될 위험성이 있다.
In order to solve the above problems, the present applicant has developed a high-temperature high-pressure insulating gasket having a structure as disclosed in Patent Document 1 and applied for a patent. The insulating gasket for high- A metal planar outer ring 30 configured to center and maintain a shape of a gasket and a concentric circle as shown in the figure, and an outer race 30 formed integrally on the inner side of the metal plane outer ring 30, A second metal serrated body 21 having serrated irregularities formed so as to respectively form a rounded convex surface, and an upper and lower inorganic laminated body 21 made of mica and bonded to the upper and lower surfaces of the second metal serrated body 21, Sheet 10, 11, and more particularly to a gasket for high-temperature and high-pressure insulation which is formed of sheets 10, 11, There is a risk that the sealing circle will break.

그리고 특허문헌 2에 도 2 및 도 3에 도시된 바와 같이 유체 통로의 기능을 하는 유체 배관의 연결부 사이에 사용되는 밀봉 장치에 있어서, 반대측 표면들을 갖고, 유체가 통과하도록 하는 개구부가 형성되어 있는 평면 금속판과, 상기 반대측 표면들 중 적어도 한 표면 위에 배치된 유전체 재료층과, 상기 반대측 표면들 중 적어도 한 표면 위에 형성된 내측 홈과 외측 홈으로서, 이들 중 적어도 하나는 상기 유전체 재료층을 관통하여 상기 금속판으로 들어가도록 형성되며, 이들은 상기 개구부 주위를 완전히 둘러싸고 있으며, 상기 내측 홈 내에 배치되는 1차 씰 부재와, 상기 외측 홈 내에 배치되는 2차 씰 부재 및 압축 리미터를 포함하는 유체 배관의 연결부 사이에 사용되는 밀봉 장치가 게시되어 있지만, 높은 온도가 적용될 경우 금속부의 열적 변화로 인한 팽창으로 인한 씰링써클(Sealing Circle)이 파손될 위험성이 있다.
2 and 3 in Patent Document 2, there is provided a sealing apparatus for use between a connecting portion of a fluid pipe functioning as a fluid passage, comprising: a sealing member having opposing surfaces and having an opening for allowing a fluid to pass therethrough; A dielectric material layer disposed on at least one surface of said opposite surfaces; an inner groove and an outer groove formed on at least one surface of said opposite surfaces, at least one of which penetrates said dielectric material layer, Which are completely enclosed about the opening and are used between the connection of the fluid pipe including the primary seal member disposed in the inner groove and the secondary seal member disposed within the outer groove and the compression limiter However, when a high temperature is applied, a thermal change of the metal part There is a risk that the sealing circle due to the expansion caused by the expansion may be damaged.

특허문헌 1 : 대한민국 공개특허공보 제10-2013-0067176호(고온고압용 절연가스켓)Patent Document 1: Korean Patent Laid-Open Publication No. 10-2013-0067176 (insulating gasket for high temperature and high pressure) 특허문헌 2 : 미국공개특허공보 제2011/0266755호(절연 가스켓, 시스템, 및 제조방법)Patent Document 2: U.S. Published Patent Application No. 2011/0266755 (Insulation Gasket, System, and Manufacturing Method)

본 발명은 상기한 종래기술의 문제를 개선하기 위하여 안출된 것으로, GRE(Glass Reinforced Epox) 소재의 절연지지판이 양면에 부착된 스테인리스 소재 원판과, PTFE(Polytetrafluoroethylene) 소재의 쉘(shell) 내부에 보강스프링이 장착된 구조의 1차 밀봉부재 및 금속제 O링 구조의 2차 밀봉부재가 구비된 구조로서, 고온에서 뛰어난 밀봉성능과 절연성능을 갖는 금속제 O링 장착 고온고압용 절연가스켓을 제공하는 것을 과제로 한다.
Disclosure of the Invention The present invention has been conceived in order to solve the problems of the prior art described above, and it is an object of the present invention to provide a stainless steel substrate having a glass reinforced Epox (GRE) insulating support plate on both sides thereof and a stainless steel shell having a polytetrafluoroethylene It is an object of the present invention to provide a metal O-ring-mounted high-temperature and high-pressure insulating gasket having excellent sealing performance and insulating performance at a high temperature with a structure including a spring-mounted primary sealing member and a metallic O- .

상기의 과제를 달성하기 위한 본 발명은 개구부가 형성되어 있는 평면 환형 금속판과; 상기 평면 환형 금속판의 양측 면에 부착된 유·무기 복합소재의 절연지지판;으로 구성되고, 상기 절연지지판이 부착된 평면 환형 금속판의 양측 면에 내측 홈 및 외측 홈이 각각 형성되고, 상기 내측 홈 내에 배치되는 1차 밀봉부재 및; 상기 외측 홈 내에 배치되는 2차 밀봉부재;가 각각 구비되는 것을 특징으로 하는 금속제 O링 장착 고온고압용 절연가스켓을 과제의 수단으로 한다.
According to an aspect of the present invention, there is provided a plasma display panel comprising: a planar annular metal plate having an opening; And an insulating support plate of an organic / inorganic composite material attached to both side surfaces of the planar annular metal plate, wherein an inner groove and an outer groove are respectively formed on both side surfaces of the planar annular metal plate to which the insulating support plate is attached, A primary sealing member disposed; And a secondary sealing member disposed in the outer groove, respectively, in order to improve the reliability of the O-ring.

그리고, 상기 유·무기 복합소재는 GRE(Glass Reinforced Epoxy) 소재이고, 상기 1차 밀봉부재는 PTFE 소재의 쉘(shell) 내부에 보강스프링이 장착된 구조이며, 상기 2차 밀봉부재는 2차 밀봉부재는 금속제 O링에 형성된 장착 홈 내에 내측 절연지지판에 돌출된 장착돌기가 삽입되는 구조인 것을 특징으로 한다.
In addition, the organic / inorganic composite material is a GRE (Glass Reinforced Epoxy) material, and the primary sealing member is a structure having a reinforcement spring mounted inside a shell of a PTFE material, Wherein the member is a structure in which a mounting protrusion protruding from the inner insulating support plate is inserted into a mounting groove formed in a metallic O-ring.

이상과 같이 구성되는 본 발명은 GRE(Glass Reinforced Epox) 소재의 절연지지판이 양면에 부착된 스테인리스 소재 원판과, PTFE 소재의 쉘(shell) 내부에 보강스프링이 장착된 구조의 1차 밀봉부재 및 금속제 O링 구조의 2차 밀봉부재를 갖는 고온고압용 절연가스켓으로, 1차 밀봉부재에 의해 화재 발생 시 유체 유실로 인한 2차적 피해를 방지하고, 1차 밀봉 부재의 고온에 의한 열적 변형으로 인한 밀봉 파괴의 단점을 보완하기 위하여 금속제 O링 구조의 2차 밀봉부재에 의해 고온에서 밀봉성능과 절연성능을 갖게되므로 밸브 본닛(Valve Bonnet), 관 플랜지(Flange), 열교환기 또는 압력용기 등에 다양한 분야에 널리 적용할 수 있는 장점이 있다.
The present invention configured as described above is characterized by comprising a stainless steel base plate having an insulating support plate of GRE (Glass Reinforced Epox) material attached on both surfaces thereof, a primary sealing member of a structure in which a reinforcing spring is mounted inside a PTFE shell, An insulating gasket for high temperature and high pressure having a secondary sealing member with an O-ring structure, which prevents secondary damage due to fluid leakage when a fire occurs by the primary sealing member and sealing due to thermal deformation due to high temperature of the primary sealing member In order to compensate for the disadvantages of fracture, the secondary sealing member made of metal O-ring structure has sealing performance and insulation performance at high temperature. Therefore, it can be used in various fields such as valve bonnet, flange flange, heat exchanger or pressure vessel There are advantages to be widely applied.

도 1은 종래의 고온고압용 절연 가스켓의 일부 면을 나타낸 단면도,
도 2는 종래의 다른 고온고압용 절연 가스켓을 나타내는 사시도,
도 3은 도 2의 고온고압용 절연 가스켓의 전체 면을 나타낸 단면도,
도 4는 도 3의 고온고압용 절연 가스켓 홈 내부에 각각 배치된 1차 및 2차 밀봉부재를 확대하여 나타낸 단면도.
도 5는 본 발명에 따른 고온고압용 절연 가스켓의 전체 면을 나타낸 단면도,
도 6은 도 5의 A 부분에서 내측 홈 및 외측 홈 내에 밀봉부재가 배치되기 전의 상태를 나타낸 단면도.
도 7은 도 5의 A 부분에서 내측 홈 및 외측 홈 내에 밀봉부재가 배치된 상태를 나타낸 단면도.1 is a cross-sectional view showing a part of a conventional insulating gasket for high-temperature and high-
2 is a perspective view showing another conventional insulating gasket for high temperature and high pressure,
3 is a cross-sectional view showing the entire surface of the insulating gasket for high temperature and high pressure of FIG. 2,
Fig. 4 is an enlarged cross-sectional view of primary and secondary sealing members disposed in the high-temperature high-pressure insulating gasket groove of Fig. 3; Fig.
5 is a cross-sectional view showing an entire surface of a high-temperature high-pressure insulating gasket according to the present invention,
Fig. 6 is a cross-sectional view showing a state before the sealing member is disposed in the inner groove and the outer groove in part A of Fig. 5;
7 is a cross-sectional view showing a state in which a sealing member is disposed in an inner groove and an outer groove in part A of FIG. 5;

이하, 본 발명의 바람직한 실시 예를 첨부된 도면에 의거하여 상세히 설명하며, 상세한 설명에서 이 기술의 분야의 종사자들이 용이하게 알 수 있는 구성 및 작용에 대한 언급은 간략히 하거나 생략하였다.
BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

본 발명은 고압의 유체가 사용되는 라인에서 절연이 필요한 개소에사용 가능한 고온고압용 절연가스켓으로 이종 재질의 플랜지가 연결된 구간에 장착되어 전기적 부식을 방지할 수 있고, 절연성이 뛰어난 GRE(Glass Reinforced Epoxy) 소재에 보강스프링이 내입된 PTFE 소재 쉘(shell)의 1차 밀봉부재을 부착하여 낮은 체결압력에서도 씰링이 가능하며, 특히 화재 발생 시 화재 진압 시까지의 단시간 동안의 고온에 노출에 의한 밀봉성을 유지할 수 있는 금속제 O링 구조의 2차 밀봉부재를 추가적으로 보완한 것이 특징이다.
The present invention relates to a high-temperature, high-pressure insulating gasket which can be used for a portion requiring insulation in a line where a high-pressure fluid is used, and is mounted in a region where a flange of a different material is connected to prevent electrical corrosion. A glass reinforced epoxy ) It is possible to seal at low clamping pressure by attaching the primary sealing member of PTFE material shell in which reinforcing spring is inserted into the material. Especially, it is possible to maintain sealability by exposure to high temperature for a short time A secondary sealing member made of a metal O-ring structure is further supplemented.

이하에서는 첨부된 도면을 참조하여 본 발명을 보다 구체적으로 설명하기로 한다.Hereinafter, the present invention will be described more specifically with reference to the accompanying drawings.

본 발명은 그 일 실시예에 따르면, 도5 및 도6에 도시한 바와 같이 개구부(10)가 형성되어 있는 평면 환형 금속판(20)과 상기 평면 환형 금속판(20)의 양측 면에 부착된 유·무기 복합소재의 절연지지판(30)으로 구성되어 진다.
5 and 6, according to one embodiment of the present invention, the planar annular metal plate 20 having the opening 10 formed thereon and the oil- And an insulating support plate 30 of an inorganic composite material.

이때, 평면 환형 금속판(20)은 도5에 도시된 바와 같이 가스켓의 형상 및 동심원을 유지시키는 센터링(centering)을 하도록 구성되어 지며, 높은 압력(Max ASME Class 2500)에서도 사용할 수 있도록 가스켓을 지지하는 역할을 한다.
At this time, the flat annular metal plate 20 is configured to center and maintain the shape of the gasket and the concentric circle as shown in FIG. 5, and supports the gasket for use at high pressure (Max ASME Class 2500) It plays a role.

그리고, 상기 평면 환형 금속판(20)의 양측 면에 부착되는 유·무기 복합소재의 절연지지판(30)은 GRE(Glass Reinforced Epoxy) 소재를 사용함으로서, 높은 절연성을 가지며, 과도한 체결 압력으로 인한 누설을 방지하며, 외부 유체나 유입물에 의한 간섭 및 변형을 방지하는 작용을 한다.
The insulating support plate 30 of the organic / inorganic composite material attached to both side surfaces of the planar annular metal plate 20 is made of GRE (Glass Reinforced Epoxy) material, so that it has a high insulation property and can prevent leakage due to excessive tightening pressure And acts to prevent interference and deformation by external fluids or inflows.

본 발명에서 사용하는 GRE(Glass Reinforced Epoxy) 소재는 NEMA(the National Electrical Manufacturers Association, 전미전기제품제조자협회)의 LI-1 G10, G11 소재를 사용하는 것이 바람직하나, 반드시 상기의 제품에만 한정되는 것이 아니고 필요에 따라 적절한 GRE(Glass Reinforced Epoxy) 소재를 선택하여 사용할 수 있다.
The GRE (Glass Reinforced Epoxy) material used in the present invention is preferably a material of LI-1 G10 or G11 of NEMA (National Electrical Manufacturers Association) You can choose to use the appropriate GRE (Glass Reinforced Epoxy) material as needed.

또한 상기 절연지지판(30)은 평면 환형 금속판과 플랜지 사이에 위치하면서 플랜지(미도시)의 체결 시 평면 환형 금속판(20)과 플랜지 간의 불완전한 접촉표면을 완벽하게 보완해주는 작용을 하게 되고, 플랜지의 금속경도가 평면 환형 금속판(20)의 금속경도보다 작을 경우 과체결압력 시 절연지지판(30)에 의한 플랜지의 접촉손상을 차단하도록 구성되어 있다.
In addition, the insulating support plate 30 is positioned between the planar annular metal plate and the flange to perfectly complement the incomplete contact surface between the annular flat metal plate 20 and the flange when the flange (not shown) is fastened. When the hardness is smaller than the metal hardness of the planar annular metal plate 20, So as to prevent contact damage of the flange by the insulating support plate (30).

그리고 상기 절연지지판(30)이 부착된 평면 환형 금속판은 도 5 내지 도 7에 도시된 바와 같이 밀봉부재들을 배치하기 위해 양측 면에 내측 홈(40) 및 외측 홈(50)을 각각 형성시킨다.
The planar annular metal plate to which the insulating support plate 30 is attached forms inner grooves 40 and outer grooves 50 on both sides for disposing the sealing members as shown in FIGS. 5 to 7, respectively.

본 발명에서 도 6은 도 5의 A 부분에서 내측 홈 및 외측 홈 내에 밀봉부재가 배치되기 전의 상태를 나타낸 단면도이고, 도 7은 도 5의 A 부분에서 내측 홈 및 외측 홈 내에 밀봉부재가 배치된 상태를 나타낸 단면도이다.
6 is a cross-sectional view showing a state before the sealing member is disposed in the inner groove and the outer groove in the portion A of Fig. 5, and Fig. 7 is a cross-sectional view of the sealing member in the inner groove and the outer groove in the portion A in Fig. Fig.

상기 내측 홈(40)은 내측 절연지지판(31)이 위치하는 부분에 형성되며, 내측 홈(40) 내에 배치되는 1차 밀봉부재는 PTFE 소재의 쉘(shell)(61) 내부에 보강스프링(62)이 장착된 구조이다.
The inner groove 40 is formed in a portion where the inner insulating support plate 31 is located and the primary seal member disposed in the inner groove 40 is formed by a reinforcing spring 62 ).

상기 1차 밀봉부재는 PTFE(Polytetrafluoroethylene) 소재의 쉘(shell) 내부에 보강스프링링(Stainless Steel)을 장착함으로써 기존 PTFE 제품의 콜드 플로우(Cold Flow) 현상으로 인한 변형을 최소화하며, 사용 시 미세 진동이나 볼트의 이완으로 인한 체결압력의 변화에서도 안정적인 밀봉이 가능하다.
The primary sealing member minimizes the deformation due to the cold flow phenomenon of the existing PTFE product by installing the reinforcing spring ring inside the shell of the PTFE (Polytetrafluoroethylene) material, Stable sealing is possible even when the tightening pressure changes due to the loosening of the bolt or bolt.

그리고 상기 외측 홈(50)은 내측 절연지지판(31)과 외측 절연지지판(32) 사이에 형성되며, 외측 홈(50) 내에 배치되는 2차 밀봉부재는 화재 발생 시 PTFE 소재의 취약점으로 인한 밀봉(Sealing) 성능 파괴를 보완하기 위한 2차적 밀봉수단으로 도 7에 도시된 바와 같이, 금속제 O링(71)에 형성된 장착 홈(72) 내에 내측 절연지지판(31)에 돌출된 장착돌기(73)가 삽입되는 구조이다.
The outer grooves 50 are formed between the inner insulative support plate 31 and the outer insulative support plate 32 and the secondary seal members disposed in the outer grooves 50 are formed by sealing As shown in Fig. 7, as a secondary sealing means for compensating for performance breakage, a mounting protrusion 73 protruding from the inner insulating support plate 31 is formed in the mounting groove 72 formed in the metal O-ring 71 .

따라서, 금속제 O링(71)의 구조에 의해 세레이션(Serration) 가공된 부분은 저체결압력에서도 빈틈없는 밀봉을 위해 볼트(Bolt) 하중이 좁은 면적에 집중되게 하며, 금속 본체를 사용하여 콜드 플로우(Cold flow), 과체결압력 시, 본체의 파손에 대한 저항이 크며, 또한 본체가 튼튼하여 대형 사이즈(Size) 설치 및 취급 시에도 안정성을 제공하고, 특히 화재 발생 시 금속제 O링(71)의 구조에 의해 고온에서의 밀봉 안정성을 확보할 수 있으며 세라믹 또는 운모 등과 같은 무기질 소재의 고온 절연 코팅을 이용하여 절연성을 확보하는 작용을 한다.
Therefore, the portion subjected to serration by the structure of the metal O-ring 71 allows the bolt load to be concentrated on a narrow area for tight sealing even under low clamping pressure, (71) of the metal O-ring (71) in case of a fire, which is resistant to breakage of the main body at the time of clamping pressure and cold flow, It is possible to ensure the sealing stability at a high temperature by the structure and to secure insulation by using a high temperature insulating coating of an inorganic material such as ceramic or mica.

본 발명에서 사용하는 금속제 O링(71)의 소재는 고온용 금속 소재로서, 구체적으로는 Stainless Steel 347 또는 Inconel 825 중에서 선택하여 사용하는 것이 바람직하다.
The material of the metal O-ring 71 used in the present invention is preferably a metal material for high temperature, specifically, Stainless Steel 347 or Inconel 825.

따라서, 본 발명에 따른 금속제 O링 장착 고온고압용 절연가스켓은 상술한 바와 같은 구조에 의해 급격한 열변화에 의한 열수축 또는 열팽창과 같은 급격한 열변형으로 유격이 발생되지 않도록 보완하는 작용을 하며, 특히, 플랜지의 과체결압력 또는 열변형에 대한 내구성이 현저히 향상되는 장점이 있고, 대형크기로 제작과 설치사용이 가능한 것이 특징이다.
Therefore, the metal O-ring-equipped insulating gasket for high temperature and high pressure with the above-described structure has a function of complementing the clearance due to rapid thermal deformation such as thermal shrinkage or thermal expansion due to abrupt thermal change, Over-tightening pressure of flange Or durability against thermal deformation is remarkably improved, and it is characterized in that it can be manufactured and installed in a large size.

참고로 도 7에서 보강스프링 삽입공(63)은 PTFE 소재의 쉘(shell)(61) 내에 보강스프링(62)을 삽입하기 위하여 형성시킨 삽입공이다.
7, the reinforcing spring insertion hole 63 is an insertion hole formed for inserting the reinforcing spring 62 into the shell 61 of the PTFE material.

상술한 바와 같은, 본 발명에 따른 금속제 O링 장착 고온고압용 절연가스켓을 상술한 바와 같이 설명하였지만, 이는 예를 들어 설명한 것에 불과하며 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 다양한 변화 및 변경이 가능하다는 것을 이 분야의 통상적인 기술자들은 잘 이해할 수 있을 것이다.Although the metallic O-ring-mounted high-temperature high-pressure insulation gasket according to the present invention as described above has been described as described above, it is merely an example to explain it, and various changes and modifications can be made without departing from the technical idea of the present invention. It will be appreciated by those of ordinary skill in the art that this is possible.

10 : 개구부 20 : 평면 환형 금속판
30 : 절연지지판
31 : 내측 절연지지판 32 : 외측 절연지지판
40 : 내측 홈 50 : 외측 홈
61 : PTFE 소재의 쉘(shell) 62 : 보강스프링
63 : 보강스프링 삽입공
71: 금속제 O링 72 : 장착 홈
73 : 장착 돌기10: opening 20: flat annular metal plate
30: Insulation support plate
31: inner insulation supporting plate 32: outer insulation supporting plate
40: inner groove 50: outer groove
61: shell of PTFE material 62: reinforcing spring
63: Reinforcement spring insertion hole
71: metal O-ring 72: mounting groove
73: Mounting projection

Claims (4)

개구부가 형성되어 있는 평면 환형 금속판과;
상기 평면 환형 금속판의 양측 면에 부착된 유·무기 복합소재인 GRE(Glass Reinforced Epoxy) 소재의 절연지지판;으로 구성되고,
상기 절연지지판이 부착된 평면 환형 금속판은 양측 면에 내측 홈 및 외측 홈이 각각 형성되고,
상기 내측 홈 내에 배치되는 1차 밀봉부재 및;
상기 외측 홈 내에 배치되는 2차 밀봉부재;
가 각각 구비되되,
상기 1차 밀봉부재는 PTFE 소재의 쉘(shell) 내부에 보강스프링이 장착된 구조이고,
상기 2차 밀봉부재는 금속제 O링에 형성된 장착 홈 내에 내측 절연지지판에 돌출된 장착돌기가 삽입되는 구조인 것을 특징으로 하는 금속제 O링 장착 고온고압용 절연가스켓.A flat annular metal plate on which an opening is formed;
And an insulating support plate made of GRE (Glass Reinforced Epoxy) material, which is an organic / inorganic composite material attached to both side surfaces of the planar annular metal plate,
Wherein the planar annular metal plate having the insulating support plate is formed with inner grooves and outer grooves on both sides thereof,
A primary sealing member disposed in the inner groove;
A secondary sealing member disposed in the outer groove;
Respectively,
The primary sealing member has a structure in which a reinforcing spring is mounted in a shell of a PTFE material,
Wherein the secondary sealing member is a structure in which a mounting protrusion protruding from an inner insulating support plate is inserted into a mounting groove formed in a metallic O-ring. 삭제delete 삭제delete 삭제delete
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