KR200329820Y1 - Insulation structure of expansion bellows in heat recovery steam generator - Google Patents
Insulation structure of expansion bellows in heat recovery steam generator Download PDFInfo
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- KR200329820Y1 KR200329820Y1 KR20-2003-0022522U KR20030022522U KR200329820Y1 KR 200329820 Y1 KR200329820 Y1 KR 200329820Y1 KR 20030022522 U KR20030022522 U KR 20030022522U KR 200329820 Y1 KR200329820 Y1 KR 200329820Y1
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- corrugated pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/10—Water tubes; Accessories therefor
- F22B37/107—Protection of water tubes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
- F22B1/1807—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines using the exhaust gases of combustion engines
- F22B1/1815—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines using the exhaust gases of combustion engines using the exhaust gases of gas-turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/10—Water tubes; Accessories therefor
- F22B37/20—Supporting arrangements, e.g. for securing water-tube sets
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Insulation (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
본 고안은 폐열회수보일러의 신축 주름관 단열 구조에 관한 것이다.The present invention relates to a stretch corrugated tube insulation structure of waste heat recovery boiler.
본 고안에 따른 폐열회수보일러의 신축 주름관 단열 구조는, 폐열회수보일러의 케이싱(12)에 외부로 연장되는 파이프(60)의 중간과 상기 케이싱(12) 사이에 설치되어 상기 파이프(60)의 열팽창에 의한 신축을 흡수하도록 하는 신축 주름관(70)에 있어서, 상기 신축 주름관(70)에 전달되는 열을 감소시키기 위한 단열구조로서, 상기 신축 주름관(70)으로 전달되는 열을 감소시키기 위하여 상기 케이싱(12) 외부로 연장된 파이프(60)의 외부를 세라믹 페이퍼(80)로 감싸 단열시킨 것을 특징으로 한다.The stretch corrugated pipe insulation structure of the waste heat recovery boiler according to the present invention is installed between the casing 12 and the middle of the pipe 60 extending to the casing 12 of the waste heat recovery boiler and thermal expansion of the pipe 60. In the elastic corrugated pipe 70 to absorb the expansion and contraction by, as an insulating structure for reducing heat transmitted to the elastic corrugated pipe 70, to reduce the heat transferred to the elastic corrugated pipe 70, the casing ( 12) the outer surface of the pipe 60 extending to the outside is characterized in that the insulation wrapped with ceramic paper (80).
본 고안에 따른 폐열회수보일러의 신축 주름관 단열 구조에 의하면, 신축 주름관 내부의 파이프를 세라믹 페이퍼로써 단열처리를 함으로써 주름관 및 케이싱 표면의 과열을 방지할 수 있어 보일러의 수명을 연장할 수 있는 효과가 있다.According to the expansion and contraction structure of the expansion pipe of the waste heat recovery boiler according to the present invention, by insulating the pipe inside the expansion pipe with ceramic paper, it is possible to prevent the overheating of the surface of the pipe and casing can extend the life of the boiler. .
Description
본 고안은, 폐열회수보일러(HRSG, Heat Recovery Steam Generator)의 신축 주름관(Expansion bellows)에 관한 것으로서, 더욱 상세하게는 신축 주름관에 단열처리를 함으로써 주름관 및 케이싱 표면의 과열을 방지한 폐열회수보일러의 신축주름관 단열 구조에 관한 것이다.The present invention relates to expansion bellows of a waste heat recovery boiler (HRSG), and more particularly, to a waste heat recovery boiler which prevents overheating of a corrugated pipe and a casing surface by thermally insulating the expansion bellows. It relates to a stretch pipe insulation structure.
폐열회수보일러는, 가스터빈에서 전력을 생산한 후 방출되는 고온의 배기가스를 이용하여 증기를 발생시키고, 발생된 증기를 이용하여 증기터빈을 구동하여 전력을 생산하기 위한 보일러이다.The waste heat recovery boiler is a boiler for generating steam by using high-temperature exhaust gas emitted after generating power from a gas turbine and driving a steam turbine using the generated steam to produce power.
상기 폐열회수보일러는, 첨부도면 도 1에 도시된 바와 같이, 가스 터빈으로부터 폐가스가 도입되는 덕트부(10)와, 이 덕트부(10)로부터 연장되며, 내부에 폐가스와 열교환하여 증기를 발생시키기 위한 각종의 열교환 모듈이 여러단계로 배치되는 열교환부(20)와, 이 열교환부(20)의 말단에 설치되며, 열교환부(20)를 통과한 폐가스가 배출되는 연돌(30)로 이루어진다.As shown in FIG. 1, the waste heat recovery boiler has a duct part 10 through which waste gas is introduced from the gas turbine, and extends from the duct part 10, thereby generating steam by heat-exchanging with the waste gas therein. The heat exchanger 20 is provided with various heat exchange modules for various stages, and the stack 30 is installed at the end of the heat exchanger 20, and the waste gas passing through the heat exchanger 20 is discharged.
이와 같은 폐열회수보일러의 외부에는 드럼(40)이나 소음기(50) 등이 설치되어 있고, 또한 터빈 측으로 각종의 배관을 연결하여야 하기 때문에, 보일러 내부로부터 케이싱(12) 외부로 각종의 파이프(60)들을 연장시켜 연결하고 있다.A drum 40, a silencer 50, and the like are provided outside the waste heat recovery boiler, and various pipes 60 are provided from the inside of the boiler to the outside of the casing 12 because various pipes must be connected to the turbine side. They extend the connection.
상기와 같이 케이싱(12) 외부로 연장되는 파이프(60)들은 보일러 내부의 고온의 가스(약 850℃ 이상의 가스)에 의하여 팽창하게 되므로, 이를 상쇄하기 위하여 첨부도면 도 2에 도시된 바와 같은, 스텐레스 재질의 신축 주름관(70)을 병설하게 된다.As described above, the pipes 60 extending out of the casing 12 are expanded by the hot gas (gas of about 850 ° C. or higher) inside the boiler, so as to offset this, as shown in FIG. Expansion and expansion of the corrugated pipe 70 is made of material.
상기 팽창식 주름관(70)은, 도 2에 도시된 바와 같이, 케이싱(12) 외부로 연장된 파이프(60)의 중간에 슬리브(62)를 설치하고, 신축 주름관(70)의 양단을 상기 슬리브(62)와 케이싱(12)에 용접한 구조로 이루어진다.As shown in FIG. 2, the inflatable corrugated pipe 70 is provided with a sleeve 62 in the middle of the pipe 60 extending out of the casing 12, and both ends of the elastic corrugated pipe 70 are disposed on the sleeve. It consists of the structure welded to 62 and the casing 12. FIG.
상기 신축 주름관(70)은 상기 파이프(60)의 열팽창을 해소(흡수)시킴과 동시에 케이싱(12)의 기밀을 유지하는 역할을 한다.The elastic corrugated pipe 70 serves to eliminate (absorb) thermal expansion of the pipe 60 and to maintain the airtightness of the casing 12.
여기서, 상기 케이싱(12)과 주름관(70) 사이에는 단열재(14)만이 충전되어 상기 파이프(60)의 열팽창이 자유롭게 일어나게 되며, 파이프(60)의 열팽창은 상기 주름관(70)에서 흡수되게 된다.Here, only the heat insulating material 14 is filled between the casing 12 and the corrugated pipe 70 so that thermal expansion of the pipe 60 occurs freely, and thermal expansion of the pipe 60 is absorbed by the corrugated pipe 70.
상기와 같은 신축 주름관(70)은, 상기 파이프(60) 둘레를 감싸고 있기 때문에, 보일러 내부의 고온의 가스에 의해 가열된 상기 파이프(60)의 열영향을 받아 가열되게 된다.Since the flexible corrugated pipe 70 is wrapped around the pipe 60, the elastic corrugated pipe 70 is heated under the influence of the heat of the pipe 60 heated by the high temperature gas inside the boiler.
그러나, 종래에는 신축 주름관(70)의 외부를 단열재로 처리하면 고온에 의해 파손될 염려가 있어 단열재가 적용되어 있지 않기 때문에, 팽창식 주름관(70)의 표면이 과열됨으로써, 도장이 탈피되고 열점(Hot sopt)화 하는 현상이 발생하였고, 그에 따라 접촉시 화상을 입는 등의 문제도 있었다.However, in the related art, when the outside of the corrugated pipe 70 is treated with a heat insulator, there is a possibility that it may be damaged by high temperature, and thus the heat insulator is not applied. sopt) phenomenon occurred, there was also a problem such as burns on contact.
본 고안은 상기와 같은 종래의 문제를 해결하기 위하여 개발된 것으로서, 신축 주름관 내부에 단열처리를 함으로써 주름관 및 케이싱 표면의 과열을 방지한 폐열회수보일러의 팽창식 주름관 단열 구조를 제공하는 것에 그 목적이 있다.The present invention was developed in order to solve the conventional problems as described above, the object of the present invention is to provide a thermal insulation structure of the expandable corrugated pipe of the waste heat recovery boiler to prevent overheating of the corrugated pipe and the casing surface by heat-insulating inside the expansion corrugated pipe. have.
도 1은 일반적인 폐열회수보일러를 나타내는 도면1 is a view showing a general waste heat recovery boiler
도 2는 종래의 신축 주름관 구조를 나타내는 단면도2 is a cross-sectional view showing a conventional stretch corrugated pipe structure.
도 3은 본 고안에 따른 신축 주름관 단열 구조를 나타내는 단면도3 is a cross-sectional view showing a stretch corrugated pipe insulation structure according to the present invention
<도면의 부요 부분에 대한 부호의 설명><Explanation of symbols for important parts of drawing>
12 : 케이싱 60 : 파이프12: casing 60: pipe
62 : 슬리브 70 : 신축 주름관62: sleeve 70: stretch corrugated pipe
80 : 세라믹 페이퍼러 82 : 스틸 와이어80: ceramic paper 82: steel wire
상술한 목적을 달성하기 위하여, 본 고안은, 폐열회수보일러의 케이싱에 외부로 연장되는 파이프의 중간과 상기 케이싱 사이에 설치되어 상기 파이프의 열팽창에 의한 신축을 흡수하도록 하는 신축 주름관에 있어서, 상기 신축 주름관에 전달되는 열을 감소시키기 위한 단열구조로서, 상기 신축 주름관으로 전달되는 열을 감소시키기 위하여 상기 케이싱 외부로 연장된 파이프의 외부를 세라믹 페이퍼로 감싸 단열시킨 것을 특징으로 한다.In order to achieve the above object, the present invention is installed in the middle of the pipe extending to the outside of the casing of the waste heat recovery boiler and the expansion and contraction in the expansion corrugated pipe to absorb the expansion and contraction by the thermal expansion of the pipe, Insulating structure for reducing heat transferred to the corrugated pipe, characterized in that the outside of the pipe extending to the outside of the casing wrapped with ceramic paper to reduce the heat transferred to the stretch corrugated pipe.
이와 같은 구성에 의하면, 상기 파이프 외부가 세라믹 페이퍼로써 단열처리됨으로 인해 파이프로부터 신축 주름관으로 열이 전달되는 것을 차단할 수 있어 신축 주름관과 케이싱의 과열이 방지된다.According to this configuration, since the outside of the pipe is insulated with ceramic paper, it is possible to block heat transfer from the pipe to the stretch corrugated pipe, thereby preventing overheating of the stretch corrugated pipe and the casing.
이하, 첨부도면을 참조하여 본 고안의 바람직한 실시예를 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
첨부도면 도 3은 본 고안에 따른 폐열회수보일러의 신축 주름관 단열 구조를 나타내는 단면도이다.Accompanying drawings, Figure 3 is a cross-sectional view showing a thermal insulation structure of the expansion and contraction of the waste heat recovery boiler according to the present invention.
종래와 동일한 부분에 대하여는 동일한 부호를 부여하며, 그 반복되는 설명은 생략한다.The same code | symbol is attached | subjected about the same part as before, and the repeated description is abbreviate | omitted.
도 3에 도시된 바와 같이, 본 고안은, 폐열회수보일러의 케이싱(12)에 외부로 연장되는 파이프(60) 외부에 공지의 세라믹 페이퍼(80)를 감싸 단열시키고, 세라믹 페이퍼(80)로 감싼 파이프(60) 외측에 신축 주름관(70)을 설치한 구조로 이루어진다.As shown in FIG. 3, the present invention encloses and insulates a well-known ceramic paper 80 outside the pipe 60 extending outwardly from the casing 12 of the waste heat recovery boiler and wraps the ceramic paper 80. It is made of a structure in which a flexible corrugated pipe 70 is installed outside the pipe 60.
상기 신축 주름관(70)은 그의 상단이 파이프(60)의 중간에 고정된 슬리브(62)에 용접고정되고, 하단이 상기 케이싱(12) 표면에 용접 고정된다.The stretch corrugated pipe 70 is welded to the sleeve 62, the upper end of which is fixed in the middle of the pipe 60, and the lower end is welded to the surface of the casing 12.
상기 세라믹 페이퍼(80)는 상기 파이프(60) 둘레에 감싸진 다음, 스틸 와이어(82)로써 묶여 고정된다. 도 3에 도시된 예에서는 세라믹 페이퍼(80)의 상,중,하 3곳을 스틸 와이어(82)로 고정한 것을 예시하고 있다.The ceramic paper 80 is wrapped around the pipe 60 and then bundled and fixed with steel wire 82. In the example illustrated in FIG. 3, three upper, middle, and lower portions of the ceramic paper 80 are fixed by the steel wires 82.
이와 같이 구성된 본 고안의 신축 주름관 단열구조에 있어서는, 보일러 내부의 고온의 가스에 의하여 가열되는 파이프(60)를 세라믹 페이퍼(80)로써 감싸 단열시키고 있으므로, 파이프(60)로부터 신축 주름관(70)으로의 열전달이 차단되게 된다.In the flexible corrugated pipe insulation structure of the present invention configured as described above, since the pipe 60 heated by the hot gas inside the boiler is wrapped and insulated with ceramic paper 80, the pipe 60 is expanded from the corrugated pipe 70. Heat transfer is blocked.
따라서, 신축 주름관(70)이 과도하게 가열되는 문제를 예방할 수 있어, 신축 주름관(70), 그리고 신축 주름관(70)과 접촉되는 케이싱(12) 표면의 열적 손상을 방지할 수 있다.Therefore, the problem that the stretch corrugated pipe 70 is excessively heated can be prevented, and thermal damage to the stretch corrugated pipe 70 and the surface of the casing 12 in contact with the stretch corrugated pipe 70 can be prevented.
이상 설명한 바와 같이, 본 고안에 따른 폐열회수보일러의 신축 주름관 단열 구조에 의하면, 신축 주름관 내부의 파이프를 세라믹 페이퍼로써 단열처리를 함으로써 주름관 및 케이싱 표면의 과열을 방지할 수 있어 보일러의 수명을 연장할 수 있는 효과가 있다.As described above, according to the stretch corrugated pipe insulation structure of the waste heat recovery boiler according to the present invention, by insulating the pipe inside the stretch corrugated pipe with ceramic paper, it is possible to prevent overheating of the corrugated pipe and the casing surface to extend the life of the boiler. It can be effective.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20-2003-0022522U KR200329820Y1 (en) | 2003-07-12 | 2003-07-12 | Insulation structure of expansion bellows in heat recovery steam generator |
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| KR20-2003-0022522U KR200329820Y1 (en) | 2003-07-12 | 2003-07-12 | Insulation structure of expansion bellows in heat recovery steam generator |
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| KR200329820Y1 true KR200329820Y1 (en) | 2003-10-10 |
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| KR20-2003-0022522U KR200329820Y1 (en) | 2003-07-12 | 2003-07-12 | Insulation structure of expansion bellows in heat recovery steam generator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102070926B1 (en) * | 2019-05-13 | 2020-03-02 | 이재근 | Space frame |
| WO2021006641A1 (en) * | 2019-07-09 | 2021-01-14 | Lg Electronics Inc. | Vacuum adiabatic body, refrigerator, and method for fabricating the refrigerator |
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2003
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102070926B1 (en) * | 2019-05-13 | 2020-03-02 | 이재근 | Space frame |
| WO2021006641A1 (en) * | 2019-07-09 | 2021-01-14 | Lg Electronics Inc. | Vacuum adiabatic body, refrigerator, and method for fabricating the refrigerator |
| US20220299256A1 (en) * | 2019-07-09 | 2022-09-22 | Lg Electronics Inc. | Vacuum adiabatic body, refrigerator, and method for fabricating the refrigerator |
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