JPH0634093A - Heat reserving working method for high temperature pipe - Google Patents
Heat reserving working method for high temperature pipeInfo
- Publication number
- JPH0634093A JPH0634093A JP4190405A JP19040592A JPH0634093A JP H0634093 A JPH0634093 A JP H0634093A JP 4190405 A JP4190405 A JP 4190405A JP 19040592 A JP19040592 A JP 19040592A JP H0634093 A JPH0634093 A JP H0634093A
- Authority
- JP
- Japan
- Prior art keywords
- heat insulating
- high temperature
- insulating material
- temperature pipe
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- F16L59/00—Thermal insulation in general
- F16L59/08—Means for preventing radiation, e.g. with metal foil
-
- 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
- F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
- F16L53/30—Heating of pipes or pipe systems
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
- Thermal Insulation (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、高温配管の保温施工方
法に関し、更に詳しくは、溶融炭酸塩型燃料電池用の高
温配管の保温施工方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for heat retaining high temperature piping, and more particularly to a method for heat retaining high temperature piping for a molten carbonate fuel cell.
【０００２】[0002]
【従来の技術】溶融炭酸塩型燃料電池は、高効率、かつ
環境への影響が少ないなど、従来の発電装置にはない特
徴を有しており、水力・火力・原子力に続く発電システ
ムとして注目を集め、現在世界各国で鋭意研究開発が行
われている。特に天然ガスを燃料とする溶融炭酸塩型燃
料電池の発電設備は、都市部のビルやマンション等に分
散して設置し、都市ガスを燃料として発電と冷暖房を行
うことにより、従来の送電に伴うロスが大幅に低減で
き、かつ８０％以上の熱効率を発揮できるシステムとし
て脚光を浴びている。2. Description of the Related Art Molten carbonate fuel cells have characteristics that conventional power generators do not have, such as high efficiency and little impact on the environment, and they are attracting attention as a power generation system following hydropower, thermal power, and nuclear power. Is currently being researched and developed all over the world. In particular, the power generation facilities for molten carbonate fuel cells that use natural gas as fuel are dispersedly installed in buildings and condominiums in urban areas, and power generation and cooling and heating are performed using city gas as fuel. It is in the limelight as a system that can significantly reduce loss and can achieve thermal efficiency of 80% or more.
【０００３】かかる発電設備は、改質器と燃料電池を備
え、改質器により天然ガスを水素を含むアノードガスに
改質し、このアノードガスと空気とから燃料電池により
発電し、その余熱により温水を製造するものである。Such power generation equipment is equipped with a reformer and a fuel cell. The reformer reforms natural gas into an anode gas containing hydrogen, and the anode gas and air are used to generate electricity by the fuel cell. It produces hot water.
【０００４】[0004]
【発明が解決しようとする課題】かかる発電設備の特徴
を十分に発揮するには、改質器、燃料電池、その他の機
器、及び配管からの放散熱量（放熱）をできる限り少な
くする必要がある。しかし、この発電設備は多数の機器
が密接して配置されているため、各機器を連結する配管
の保温施工が難しい問題があった。すなわち、従来の保
温施工では、高温配管（例えば７００°Ｃ以上）はケイ
酸カルシウム等の円筒形保温材により、隙間がないよう
に覆うことによって保温施工を行っていたが、本発電設
備では機器が密接しているためかかる保温施工が困難で
あった。従って、かかる部分の高温配管は、配管のまわ
りを繊維質の保温材（例えばカオール）で覆い、そのま
わりを別の繊維質の保温材で巻く方法により保温施工が
行われていた。しかし、この保温施工方法では、保温材
の間に隙間が出来やすく、その隙間から高温配管で加熱
された空気が外に逃げるため放熱が大きい問題があっ
た。また、かかる保温施工方法では、高温配管からの放
射による放散熱量も大きい問題があった。In order to fully utilize the features of such power generation equipment, it is necessary to minimize the amount of heat radiated (heat radiation) from the reformer, fuel cell, other equipment, and piping. . However, since a large number of devices are closely arranged in this power generation facility, there is a problem that it is difficult to carry out heat insulation of the pipes connecting the devices. That is, in the conventional heat insulation work, the high temperature pipe (for example, 700 ° C or higher) is covered with a cylindrical heat insulation material such as calcium silicate so that there is no gap between the heat insulation work. It was difficult to apply such heat insulation due to the close proximity of Therefore, the high temperature piping in such a portion is heat-insulated by covering the circumference of the piping with a fibrous heat insulating material (for example, cahor) and winding it around with another fibrous heat insulating material. However, this heat insulation construction method has a problem in that a gap is likely to be formed between the heat insulation materials, and the air heated by the high temperature pipe escapes to the outside from the gap, resulting in large heat dissipation. In addition, such a heat insulating construction method has a problem that the amount of heat dissipated by radiation from the high temperature pipe is large.
【０００５】本発明は、かかる問題を解決するために創
案されたものである。すなわち、本発明の目的は、狭い
スペースでも施工することができ、高温配管で温められ
た空気が保温材の外に逃げることによる熱損失と、高温
配管からの放射による熱損失の両方を減少させることが
でき、高温配管からの放熱損失を低減させてプラント効
率を高めることができる高温配管の保温施工方法を提供
することにある。The present invention was created to solve such a problem. That is, the object of the present invention can be installed in a narrow space, reduce both heat loss due to the air warmed in the high temperature pipe escapes out of the heat insulating material, and heat loss due to radiation from the high temperature pipe. Another object of the present invention is to provide a heat insulating construction method for high temperature pipes, which can reduce heat dissipation loss from the high temperature pipes and enhance plant efficiency.
【０００６】[0006]
【課題を解決するための手段】本発明によれば、高温配
管のまわりを繊維質の第１の保温材で覆い、該第１保温
材のまわりを反射率の高い金属箔で覆い、次いで金属箔
のまわりを繊維質の第２の保温材で覆う、ことを特徴と
する高温配管の保温施工方法が提供される。本発明の好
ましい実施例によれば、前記金属箔は、アルミニウム又
はステンレステープのテープであるのが良い。更に、高
温配管のまわりにヒータを巻き、かつ第１の保温材のま
わりをバンドで巻く、のが良い。According to the present invention, the high temperature pipe is surrounded by a first heat insulating material made of fibrous material, the first heat insulating material is covered by a metal foil having a high reflectance, and then a metal is used. There is provided a heat insulating construction method for high temperature piping, characterized in that the foil is covered with a second heat insulating material made of fiber. According to a preferred embodiment of the present invention, the metal foil may be a tape of aluminum or stainless tape. Further, it is preferable to wrap a heater around the high temperature pipe and wrap a band around the first heat insulating material.
【０００７】[0007]
【作用】本発明は、高温配管で温められた空気が保温材
の外に逃げることによる熱損失と、高温配管からの放射
による熱損失の両方を減少することにより高温配管から
の放熱損失を低減することを意図するものである。上記
本発明によれば、第１の保温材は繊維質なので、狭いス
ペースでも容易に施工することができる。また、第１保
温材のまわりを金属箔で覆うので、金属箔の内側の空気
を閉じ込めることができ、高温配管で加熱された空気が
保温材の隙間から外に逃げるのを防ぐことができる。更
に、金属箔の表面は反射率が高いので、高温配管から放
射される熱を反射させて金属箔の内側に閉じ込めること
ができる。The present invention reduces the heat loss due to the air warmed in the high temperature pipe escaping to the outside of the heat insulating material and the heat loss due to the radiation from the high temperature pipe, thereby reducing the heat radiation loss from the high temperature pipe. Is intended to do. According to the above-mentioned present invention, since the first heat insulating material is fibrous, it can be easily installed even in a narrow space. Moreover, since the first heat insulating material is covered with the metal foil, the air inside the metal foil can be trapped, and the air heated by the high temperature pipe can be prevented from escaping to the outside from the gap of the heat insulating material. Further, since the surface of the metal foil has a high reflectance, the heat radiated from the high temperature pipe can be reflected and confined inside the metal foil.
【０００８】従って、高温配管からの放熱損失を低減さ
せてプラント効率を高めることができる。Therefore, it is possible to reduce the heat radiation loss from the high temperature pipes and improve the plant efficiency.
【０００９】[0009]
【実施例】以下に本発明の好ましい実施例を図面を参照
して説明する。図１は本発明の保温施工方法により保温
された高温配管を示す部分断面図である。この図におい
て、高温配管２のまわりには電気ヒータ４が巻かれ、そ
のまわりにを繊維質の第１の保温材６が覆っている。電
気ヒータ４を用いることにより高温配管２を流れる流体
の温度を制御することができる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a partial cross-sectional view showing a high temperature pipe kept warm by the heat insulating construction method of the present invention. In this figure, an electric heater 4 is wound around a high temperature pipe 2, and a first fibrous heat insulating material 6 is wrapped around the electric heater 4. By using the electric heater 4, the temperature of the fluid flowing through the high temperature pipe 2 can be controlled.
【００１０】第１の保温材６は、高温配管の温度に適し
た任意の保温材を用いることができる。例えば７００°
Ｃ以上の温度に対してはシリカウール、シリカ・アルミ
ナ繊維、或いはカオール等を用いるのが良い。繊維質の
第１保温材６を用いることにより、狭いスペースでも容
易に施工することができる。As the first heat insulating material 6, any heat insulating material suitable for the temperature of the high temperature pipe can be used. For example 700 °
For temperatures above C, it is preferable to use silica wool, silica-alumina fibers, caol, or the like. By using the fibrous first heat insulating material 6, the construction can be easily performed even in a narrow space.
【００１１】第１保温材６はまわりをバンド７が巻かれ
ている。これにより第１保温材６を所定の位置に保持す
ることができる。更に第１保温材６のまわり、すなわち
バンド７のまわりを金属箔８が覆っている。この金属箔
８は、表面の反射率が高いことが好ましく、例えば、ア
ルミニウム、ステンレス等のテープが良い。金属箔８の
厚さは保温施工が容易なように薄いことが好ましく、例
えば５０μｍ以内であるのが良い。また、金属箔の表面
は高温配管による加熱により酸化して反射率が低下しな
いことが好ましい。従って、表面にアルマイト処理、メ
ッキ等が施されているのが良い。A band 7 is wound around the first heat insulating material 6. As a result, the first heat insulating material 6 can be held at a predetermined position. Furthermore, the metal foil 8 covers the first heat insulating material 6, that is, the band 7. The metal foil 8 preferably has a high surface reflectance, and for example, a tape made of aluminum, stainless steel or the like is preferable. The thickness of the metal foil 8 is preferably thin so that heat insulation can be performed easily, and is preferably within 50 μm, for example. Further, it is preferable that the surface of the metal foil is not oxidized by being heated by a high-temperature pipe so that the reflectance is not lowered. Therefore, it is preferable that the surface is anodized or plated.
【００１２】更に、金属箔８のまわりを繊維質の第２の
保温材１０が覆っている。この第２の保温材１０は、金
属箔８の温度に適した任意の保温材を用いることができ
る。金属箔８は高温配管２よりも低温（例えば３００〜
５００°Ｃ）であるため、第１保温材６よりも保温性能
が高い保温材、例えば、パーライト、ケイ酸カルシウム
等を用いることができる。これにより保温全体の保温性
能を高めることができる。また、第２保温材１０にも繊
維質の保温材を用いることにより、狭いスペースでも容
易に施工することができる。Further, the metal foil 8 is covered with a second fibrous heat insulating material 10. As the second heat insulating material 10, any heat insulating material suitable for the temperature of the metal foil 8 can be used. The metal foil 8 has a temperature lower than that of the high temperature pipe 2 (for example, 300 to
Since the temperature is 500 ° C., it is possible to use a heat insulating material having higher heat insulating performance than the first heat insulating material 6, such as pearlite or calcium silicate. As a result, the heat retention performance of the entire heat retention can be improved. Further, by using a fibrous heat insulating material also for the second heat insulating material 10, it can be easily installed even in a narrow space.
【００１３】第２保温材１０のまわりを外装板１２が覆
っている。この外装板１２は、アルミニウム板、鋼板等
を曲げ加工したものが良い。これにより、保温材の移動
や損傷を防ぎ、保温性能を長期間維持することができ
る。An exterior plate 12 covers the second heat insulating material 10. The exterior plate 12 is preferably formed by bending an aluminum plate, a steel plate or the like. As a result, movement and damage of the heat insulating material can be prevented, and heat insulating performance can be maintained for a long time.
【００１４】本発明による保温施工は次のようにして行
う。まず、高温配管２のまわりを繊維質の第１の保温材
６で覆い、第１保温材６のまわりを反射率の高い金属箔
８で覆い、次いで金属箔８のまわりを繊維質の第２の保
温材１０で覆う。更に好ましくは、高温配管２のまわり
にヒータ４を巻き、かつ第１保温材６のまわりにバンド
７を巻く、のが良い。The heat insulating work according to the present invention is performed as follows. First, the high temperature pipe 2 is covered with a first fibrous heat insulating material 6, the first heat insulating material 6 is covered with a metal foil 8 having high reflectance, and then the metal foil 8 is surrounded with a second fibrous second material. Cover with the heat insulating material 10. More preferably, the heater 4 is wound around the high temperature pipe 2, and the band 7 is wound around the first heat insulating material 6.
【００１５】すなわち本発明によれば、第１の保温材は
繊維質なので、狭いスペースでも容易に保温施工をする
ことができる。また、第１保温材のまわりを金属箔で覆
うので、金属箔の内側の空気を閉じ込めることができ、
高温配管で加熱された空気が保温材の隙間から外に逃げ
るのを防ぐことができる。更に、金属箔の表面は反射率
が高いので、高温配管から放射される熱を反射させて金
属箔の内側に閉じ込めることができる。That is, according to the present invention, since the first heat insulating material is fibrous, the heat insulating work can be easily performed even in a narrow space. Further, since the first heat insulating material is covered with the metal foil, the air inside the metal foil can be trapped,
It is possible to prevent the air heated by the high temperature pipe from escaping through the gap of the heat insulating material to the outside. Further, since the surface of the metal foil has a high reflectance, the heat radiated from the high temperature pipe can be reflected and confined inside the metal foil.
【００１６】[0016]
【発明の効果】従って、本発明によれば、高温配管で温
められた空気が保温材の外に逃げることによる熱損失
と、高温配管からの放射による熱損失の両方を減少させ
ることができ、高温配管からの放熱損失を低減させてプ
ラント効率を高めることができる。Therefore, according to the present invention, both the heat loss due to the air warmed in the high temperature piping escaping out of the heat insulating material and the heat loss due to the radiation from the high temperature piping can be reduced. It is possible to improve the plant efficiency by reducing the heat radiation loss from the high temperature piping.
【図１】本発明の保温施工方法により保温された高温配
管を示す部分断面図である。FIG. 1 is a partial cross-sectional view showing a high temperature pipe which is kept warm by a heat insulating work method of the present invention.
２ 高温配管 ４ 電気ヒータ ６ 第１保温材 ７ バンド ８ 金属箔 １０ 第２保温材 １２ 外装板 2 high temperature piping 4 electric heater 6 first heat insulating material 7 band 8 metal foil 10 second heat insulating material 12 exterior plate
Claims (3)
材で覆い、該第１保温材のまわりを反射率の高い金属箔
で覆い、次いで金属箔のまわりを繊維質の第２の保温材
で覆う、ことを特徴とする高温配管の保温施工方法。1. A high temperature pipe is covered with a first fibrous heat insulating material, a metal foil having a high reflectance is wrapped around the first heat insulating material, and then a second fibrous material is wrapped around the metal foil. A heat insulating construction method for high temperature piping, which is characterized by covering with a heat insulating material.
レスのテープである、ことを特徴とする請求項１に記載
の高温配管の保温施工方法。2. The heat insulating construction method for high temperature piping according to claim 1, wherein the metal foil is a tape of aluminum or stainless steel.
き、かつ第１保温材のまわりをバンドで巻く、ことを特
徴とする請求項１に記載の高温配管の保温施工方法。3. The method for keeping heat of a high temperature pipe according to claim 1, further comprising winding a heater around the high temperature pipe and winding a band around the first heat insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4190405A JPH0634093A (en) | 1992-07-17 | 1992-07-17 | Heat reserving working method for high temperature pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4190405A JPH0634093A (en) | 1992-07-17 | 1992-07-17 | Heat reserving working method for high temperature pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0634093A true JPH0634093A (en) | 1994-02-08 |
Family
ID=16257602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4190405A Pending JPH0634093A (en) | 1992-07-17 | 1992-07-17 | Heat reserving working method for high temperature pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0634093A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010038288A (en) * | 2008-08-06 | 2010-02-18 | Nichias Corp | Heat insulator |
| EP2735544A3 (en) * | 2012-11-27 | 2014-07-23 | Ulusal Bor Arastirma Enstitusu (Boren) | A reactor designed for chemical vapor deposition method and method of producing elemental boron and advanced ceramic powders with this reactor |
| CN104406006A (en) * | 2014-10-28 | 2015-03-11 | 宁夏天纵泓光余热发电技术有限公司 | Open-air instrument pipe heat preservation method |
| CN109354444A (en) * | 2018-09-30 | 2019-02-19 | 宁波运通新材料科技有限公司 | Utilize the ecological heat preservation material of discarded calcium silicates, preparation process and the construction method on hot pipeline |
| CN113531183A (en) * | 2021-06-07 | 2021-10-22 | 夏志全 | Self-heating unfreezing type anti-freezing water faucet |
| KR20220124869A (en) * | 2021-03-04 | 2022-09-14 | 주식회사 티에스시 | Heater jacket for pipe using heat reflecting layer |
| KR102479990B1 (en) * | 2021-12-03 | 2022-12-22 | (주)제이솔루션 | Energy-saving pipe heating jacket with air layer |
-
1992
- 1992-07-17 JP JP4190405A patent/JPH0634093A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010038288A (en) * | 2008-08-06 | 2010-02-18 | Nichias Corp | Heat insulator |
| EP2735544A3 (en) * | 2012-11-27 | 2014-07-23 | Ulusal Bor Arastirma Enstitusu (Boren) | A reactor designed for chemical vapor deposition method and method of producing elemental boron and advanced ceramic powders with this reactor |
| CN104406006A (en) * | 2014-10-28 | 2015-03-11 | 宁夏天纵泓光余热发电技术有限公司 | Open-air instrument pipe heat preservation method |
| CN109354444A (en) * | 2018-09-30 | 2019-02-19 | 宁波运通新材料科技有限公司 | Utilize the ecological heat preservation material of discarded calcium silicates, preparation process and the construction method on hot pipeline |
| KR20220124869A (en) * | 2021-03-04 | 2022-09-14 | 주식회사 티에스시 | Heater jacket for pipe using heat reflecting layer |
| CN113531183A (en) * | 2021-06-07 | 2021-10-22 | 夏志全 | Self-heating unfreezing type anti-freezing water faucet |
| KR102479990B1 (en) * | 2021-12-03 | 2022-12-22 | (주)제이솔루션 | Energy-saving pipe heating jacket with air layer |
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