JP3128108B2 - Internal insulation structure of telescopic tube for high temperature - Google Patents
Internal insulation structure of telescopic tube for high temperatureInfo
- Publication number
- JP3128108B2 JP3128108B2 JP06283851A JP28385194A JP3128108B2 JP 3128108 B2 JP3128108 B2 JP 3128108B2 JP 06283851 A JP06283851 A JP 06283851A JP 28385194 A JP28385194 A JP 28385194A JP 3128108 B2 JP3128108 B2 JP 3128108B2
- Authority
- JP
- Japan
- Prior art keywords
- inorganic fiber
- telescopic tube
- fiber block
- block
- 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.)
- Expired - Fee Related
Links
Landscapes
- Thermal Insulation (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、高温空気、燃焼ガスの
ような高温流体を送給するための管路の途中に設けられ
た高温用伸縮管の内部断熱構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an internal heat-insulating structure for a high-temperature telescopic tube provided in the middle of a pipeline for supplying a high-temperature fluid such as high-temperature air or combustion gas.
【０００２】[0002]
【従来の技術】製鉄プラント、化学プラント等におい
て、高温流体を送給する際しての管路には途中に伸縮管
を配設して、管路の熱膨張吸収が可能なようにしてい
る。この管路を通過する流体の温度は３００〜４００℃
以上の高温にもなるため、伸縮管の内部は耐火断熱材で
ライニングして強度を維持すると共に、放散熱量の低減
を図っている。図７は、従来の高温流体用伸縮管の内部
断熱構造の代表例を示す。図面に示すように、伸縮管の
内面には、スタッド１３と称する保持金具を適宜配設
し、キャスタブル１５を１層以上設けた断熱構造を有す
る。また、図１及び図２に示すように、別の断熱構造と
して伸縮管の内面にスタッドピン１４を適宜設置してセ
ラミックファイバー１６を１層以上設けた構造もある。
なお、無機繊維製ブランケットを連続的に折り畳んでア
コーデオン状に形成してなるブロックを炉の内張り材等
に使用することは、実公昭６１−４６３９６号公報等に
記載されている。2. Description of the Related Art In a steelmaking plant, a chemical plant, or the like, a telescopic pipe is provided in a pipeline at the time of supplying a high-temperature fluid so that the thermal expansion of the pipeline can be absorbed. . The temperature of the fluid passing through this conduit is 300-400 ° C
Because of the high temperatures described above, the inside of the telescopic tube is lined with a fire-resistant heat insulating material to maintain strength and reduce the amount of heat dissipated. FIG. 7 shows a typical example of the internal heat insulation structure of a conventional telescopic tube for high-temperature fluid. As shown in the drawing, a holding metal fitting called a stud 13 is appropriately disposed on the inner surface of the telescopic tube, and has a heat insulating structure in which one or more layers of castables 15 are provided. Also, as shown in FIGS. 1 and 2, there is a structure in which one or more ceramic fibers 16 are provided by appropriately installing stud pins 14 on the inner surface of a telescopic tube as another heat insulating structure.
It is described in Japanese Utility Model Publication No. 61-46396 and the like that a block formed by continuously folding an inorganic fiber blanket to form an accordion is used as a lining material of a furnace.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、内部断
熱構造をキャスタブルによって形成した場合、その構造
上、キャスタブル自体の比重が大きいことによって、ス
タッドや伸縮管本体の強度をキャスタブルの重量に耐え
るように頑強にする必要があり、このため、伸縮管本体
重量が増加するという欠点を有する。また、伸縮管の熱
挙動による膨張収縮や管路系の微振動によってクラック
が発生しやすく、これがキャスタブルの部分的な脱落や
全面脱落に至り、さらには、サーマルスポーリングによ
る崩壊が発生する場合がある。また、キャスタブルの構
築は、耐火材の粉末と水を混練し築造するものであり、
昇温乾燥して所定の強度を発揮するために築造後昇温乾
燥作業が必要となる。このことは、昇温乾燥のための設
備が必要であると共に、昇温乾燥に数日間、長い場合は
１０日以上の期日を費やす場合があり、工期短縮を困難
にしている。一方、セラミックファイバーを内面に配設
する構造においては、流体の通過に伴いセラミックファ
イバーの表面が徐々に剥離して飛散し、とくに、流体が
高速になるとこの現象が顕著になり、寿命が大幅に短縮
されるのみならず、通過流体中に剥離したセラミックフ
ァイバーの粉末（ショット）が混入する。また、セラミ
ックファイバー構造にする場合、スタッドピンの先端が
内部流体に晒されるため、耐熱鋼のような高価な材質と
しなければならない。さらに、伸縮管の寸法が大きい場
合には、前記のスタッドピンの設置数量も相当数とな
り、このスタッドピンからの熱損失も大きなものとな
る。本発明は、上記の従来の高温用伸縮管の欠点を解消
して、内部の断熱材が伸縮管の伸縮に自在に追随するこ
とができ、断熱性に優れ、放散熱量が極めて小さく、軽
量で、且つ、構造がシンプルな高温用伸縮管を提供する
ものである。However, when the internal heat-insulating structure is formed by castables, the casters themselves have a large specific gravity, so that the strength of the studs and the telescopic tube main body must be strong enough to withstand the weight of the castables. Therefore, there is a disadvantage that the weight of the telescopic tube body increases. In addition, cracks are likely to occur due to expansion and contraction due to the thermal behavior of the telescopic tube and microvibration of the pipeline system, which leads to partial or complete dropout of the castable, and furthermore, collapse due to thermal spalling may occur. is there. In addition, the construction of castables is to knead refractory powder and water and build them.
In order to exhibit a predetermined strength by heating and drying, a heating and drying operation after the building is required. This necessitates equipment for heating and drying, and may require several days for heating and drying, and in some cases, 10 days or more, which makes it difficult to shorten the construction period. On the other hand, in the structure in which the ceramic fiber is disposed on the inner surface, the surface of the ceramic fiber gradually separates and scatters with the passage of the fluid. In addition to the shortening, powder (shot) of the separated ceramic fiber is mixed into the passing fluid. In the case of using a ceramic fiber structure, the tip of the stud pin is exposed to the internal fluid, so that an expensive material such as heat-resistant steel must be used. Further, when the size of the telescopic tube is large, the number of the stud pins is considerably large, and the heat loss from the stud pins is also large. The present invention solves the above-mentioned drawbacks of the conventional high-temperature telescopic tube, and allows the internal heat insulating material to freely follow the expansion and contraction of the telescopic tube, has excellent heat insulating properties, has a very small amount of heat dissipation, and is lightweight. Further, the present invention provides a high-temperature telescopic tube having a simple structure.
【０００４】[0004]
【課題を解決するための手段】本発明は、伸縮管の内部
に耐火材を配設してなる伸縮管の内部断熱構造におい
て、シート状に形成した無機繊維を所定の幅で交互に折
り曲げてアコーデオン形状の無機繊維ブロックとし、こ
の無機繊維ブロックの裏面には伸縮管の内側に配設する
ための支持金具であって長さ方向に伸縮自在となるよう
に２つ以上に分割された支持金具を取り付けると共に、
この支持金具を介して伸縮管の内側に繊維ブロックを配
設したことを特徴とする高温用伸縮管の内部断熱構造で
ある。高温用伸縮管の内部を流れる高温流体と接触する
無機繊維ブロックの表面には、シート状に成形した無機
繊維を耐熱鋼製糸で紡織したシートが表面に現れるよう
に無機繊維ブロックの折り曲げ部に狭着したり、或いは
無機繊維ブロックの表面をセラミックプレートで被覆し
たりすることが有利である。無機繊維としてはガラス繊
維、ロックウール、セラミックファイバー等が使用でき
るが、耐熱性の観点からはセラミックファイバーが優れ
る。これらはシート状に形成されたものが使用される。SUMMARY OF THE INVENTION According to the present invention, there is provided an internal heat insulating structure for a telescopic tube in which a refractory material is disposed inside the telescopic tube, wherein the inorganic fibers formed in a sheet shape are alternately bent at a predetermined width. An accordion-shaped inorganic fiber block, a support fitting for being disposed inside the telescopic tube on the back surface of the inorganic fiber block, and divided into two or more support fittings so as to be freely stretchable in the length direction. Attach
A high-temperature telescopic tube internal heat-insulating structure characterized in that a fiber block is disposed inside the telescopic tube via the support fitting. The surface of the inorganic fiber block that comes into contact with the high-temperature fluid flowing inside the high-temperature telescopic tube is narrowed at the bent portion of the inorganic fiber block so that a sheet formed by heat-resistant steel yarn of inorganic fibers formed into a sheet shape appears on the surface. It is advantageous to coat or to coat the surface of the inorganic fiber block with a ceramic plate. Glass fibers, rock wool, ceramic fibers and the like can be used as the inorganic fibers, but ceramic fibers are excellent from the viewpoint of heat resistance. These are used in the form of a sheet.
【０００５】[0005]
【作用】アコーデオン状に連続折りした無機質繊維を圧
縮成形しブロックを形成し、前記アコーデオン状の連続
折りを伸縮管本体の伸縮方向と一致させることにより、
伸縮管の伸縮に内部の断熱材が自在に追随することがで
きる。また、断熱材が繊維質のため軽量であり、サーマ
ルスポーリングや管路の微振動による亀裂の発生や脱落
がない。さらには、蓄熱量がすくなくて済むと共に、放
散熱量も少ないためエネルギー効率が極めて良好である
ことのほか、昇温乾燥設備や作業を不要とする。The accordion-shaped inorganic fibers are compression-molded to form a block, and the accordion-shaped continuous folds are made to coincide with the direction of expansion and contraction of the telescopic tube body.
The heat insulating material inside can freely follow the expansion and contraction of the telescopic tube. Further, since the heat insulating material is made of fibrous material, the heat insulating material is lightweight, and there is no cracking or falling off due to thermal spalling or micro vibration of the pipeline. In addition, the amount of heat storage is small, and the amount of heat dissipated is small, so that the energy efficiency is extremely good.
【０００６】[0006]
【実施例】図１は本発明の第１の実施例を示す斜視図、
図２は本発明の第１の実施例を示す側面図、図３はその
断面図、図４はその部分切り欠き拡大斜視図、図５及び
図６は各々別の実施例の部分断面斜視図であり、図７及
び図８は各々別の従来例の部分断面図である。図中、１
は伸縮管金具本体であり、入り口側と出口側の両方にあ
り、その間に伸縮可能なベローズ２がある。このベロー
ズ２を熱から保護するため無機繊維ブロック４が内側に
配設されている。無機繊維ブロック４はブランケットの
ようなシート状に成形した無機繊維を所定の幅に交互に
折り曲げてアコーデオン形状とされており、その裏面に
は支持金具としてのチャンネル５が取り付けられてい
る。ここで、無機繊維ブロック４の表面とは高温流体と
接触する側の面をいい、裏面とはその反対側の面をい
い、長さ方向とは伸縮管金具本体間の方向をいい、この
長さ方向に無機繊維ブロック４はアコーデオン形状に積
層されている。無機繊維ブロック４にチャンネル５を取
り付ける方法としては、任意の方法が採用できるが、図
３及び４に示すように無機繊維ブロック４の折り目の内
側にビーム６を横方向に通し、このビーム６のほぼ中間
部とチャンネル５を結合金具で結合させて取り付ける方
法が有利である。この際、ビームと結合金具は一体化さ
せてほぼＴ字型とし、結合金具となる脚部は無機繊維シ
ートを突き抜けてチャンネル５に所定箇所に嵌合するよ
うにすることもできる。このビームは一つのチャンネル
に対し１本でもよいが２本以上であれば、強度がより向
上する。チャンネル５は無機繊維ブロック４を伸縮管に
配設するための支持金具であって、この無機繊維ブロッ
クが長さ方法に伸縮自在となるように２つ以上に分割さ
れている。図１〜図３では、２つのチャンネルが所定の
間隙を空けて無機繊維ブロック４に取り付けられてい
る。そして、それぞれのチャンネル５には２本のビーム
６が結合金具を介して結合されて、無機繊維ブロック４
とチャンネル５が一体化している。ここで、チャンネル
５は２つに分割されているため、長さ方向に伸縮するこ
とが可能とされている。この無機繊維ブロック４は圧縮
された状態で梱包され、取り付けられることが多いの
で、この圧縮時に２つのチャンネルが重ならない程度の
間隙を設けて置くことがよい。このときの圧縮率は３０
％程度が適当である。無機繊維ブロック４の伸縮管への
取り付けは、図３及び図４に示すように支持金具である
チャンネル５を介して行う。取り付け方法は任意である
が、この図面では伸縮管金具本体１の水平部に溶接され
た取り付けボルト７が、無機繊維ブロック４の支持金具
であるチャンネル５に設けられたボルト穴を貫通し、そ
こでナットにより一体化されている。図面ではそれぞれ
１箇所が取り付けボルトにより一体化されているが、２
箇所以上とすればより強固なものとなる。また、伸縮管
金具本体１は両側にあるが、図面では一方に無機繊維ブ
ロック４の一方のチャンネル５を一体化し、他方に無機
繊維ブロック４の他方のチャンネル５を一体化すること
により、伸縮管内面を覆うようにすると共に、長さ方向
に伸縮自在としている。なお、伸縮管の幅や長さが無機
繊維ブロック４の大きさに比べて大きい場合は、図２に
示すように繊維ブロック４を多数組み合わせて使用する
ことができる。また、伸縮管のベローズと繊維ブロック
４の間にできる空隙には必要により無機繊維のパルクや
ブランケットを充填することがよく、この場合、ベロー
ズの伸縮を妨げないように、密度が１００〜１６０ｋｇ
／ｍ3 程度となるように充填することがよい。FIG. 1 is a perspective view showing a first embodiment of the present invention.
FIG. 2 is a side view showing a first embodiment of the present invention, FIG. 3 is a cross-sectional view thereof, FIG. 4 is an enlarged perspective view of a partially cut-away view, and FIGS. 5 and 6 are partial cross-sectional perspective views of another embodiment. 7 and 8 are partial sectional views of different conventional examples. In the figure, 1
Is a telescopic pipe fitting main body, which is on both the entrance side and the exit side, and has a bellows 2 which can extend and contract therebetween. An inorganic fiber block 4 is disposed inside to protect the bellows 2 from heat. The inorganic fiber block 4 is formed into an accordion shape by alternately bending inorganic fibers formed into a sheet shape such as a blanket to a predetermined width, and has a channel 5 as a support fitting attached to the back surface thereof. Here, the surface of the inorganic fiber block 4 refers to the surface on the side in contact with the high-temperature fluid, the back surface refers to the surface on the opposite side, and the length direction refers to the direction between the telescopic tube fitting bodies. The inorganic fiber blocks 4 are laminated in an accordion shape in the vertical direction. As a method of attaching the channel 5 to the inorganic fiber block 4, any method can be adopted. As shown in FIGS. 3 and 4, the beam 6 is passed through the inside of the fold of the inorganic fiber block 4 in the lateral direction, and It is advantageous to attach the intermediate part and the channel 5 by connecting them with a connecting metal fitting. At this time, the beam and the connecting fitting may be integrated into a substantially T-shape, and the leg serving as the connecting fitting may pass through the inorganic fiber sheet and fit into the channel 5 at a predetermined position. This beam may be one for one channel, but if it is two or more, the intensity is further improved. The channel 5 is a support fitting for arranging the inorganic fiber block 4 in the telescopic tube, and is divided into two or more so that the inorganic fiber block can be expanded and contracted in the length direction. 1 to 3, two channels are attached to the inorganic fiber block 4 with a predetermined gap. Then, two beams 6 are coupled to each channel 5 via a coupling fitting to form an inorganic fiber block 4.
And channel 5 are integrated. Here, since the channel 5 is divided into two, it is possible to expand and contract in the length direction. Since the inorganic fiber block 4 is often packed and attached in a compressed state, it is preferable to provide a gap such that the two channels do not overlap during the compression. The compression ratio at this time is 30
% Is appropriate. The attachment of the inorganic fiber block 4 to the telescopic tube is performed via a channel 5 which is a support fitting as shown in FIGS. Although the mounting method is optional, in this drawing, the mounting bolt 7 welded to the horizontal portion of the telescopic pipe fitting main body 1 penetrates a bolt hole provided in the channel 5 which is a support fitting of the inorganic fiber block 4, and there Integrated with nuts. In the drawing, one portion is integrated by a mounting bolt.
If it is more than the number of places, it becomes stronger. In addition, although the telescopic tube fitting main body 1 is on both sides, in the drawing, one channel 5 of the inorganic fiber block 4 is integrated into one and the other channel 5 of the inorganic fiber block 4 is integrated into the other, so that the inside of the telescopic tube is improved. In addition to covering the surface, it can be extended and contracted in the length direction. When the width and the length of the telescopic tube are larger than the size of the inorganic fiber block 4, a large number of fiber blocks 4 can be used in combination as shown in FIG. In addition, it is preferable to fill the gap formed between the bellows of the telescopic tube and the fiber block 4 with alk or blanket of inorganic fibers as necessary. In this case, the density is 100 to 160 kg so as not to hinder the expansion and contraction of the bellows.
/ M 3 .
【０００７】図５は他の実施例を示すものであり、無機
繊維ブロック４がシート状に成形した無機繊維を耐熱鋼
製糸で紡織したシートが表面に現れるように無機繊維ブ
ロックの折り曲げ部に狭着したものである。これは、無
機繊維ブロック４の全面に行ってもよいし、無機繊維ブ
ロック間の接合部等強度的に弱い部分だけであってもよ
い。このようにすることにより、内部を通過する流体の
流れによるブロックの損傷や、ダスト、スケール等によ
るブロックの損傷を低減することができる。FIG. 5 shows another embodiment of the present invention, in which the inorganic fiber block 4 is formed into a sheet shape, and the inorganic fiber is formed by heat-resistant steel yarn. It is what I wore. This may be performed on the entire surface of the inorganic fiber block 4 or may be performed only on a weak portion such as a joint between the inorganic fiber blocks. By doing so, it is possible to reduce damage to the block due to the flow of the fluid passing through the inside and damage to the block due to dust, scale, and the like.
【０００８】図６は、更に別の実施例を示すものであ
り、無機繊維ブロック４の表面をセラミックプレートで
被覆してなるものである。これも、無機繊維ブロック４
の全面に行ってもよいし、無機繊維ブロック間の接合部
等強度的に弱い部分だけであってもよい。セラミックプ
レートの無機繊維ブロック４への取り付けは任意の方法
でよいが、図面ではチャンネル５に取り付けたセラミッ
クボルト１０をブロック４の表面上に置かれたセラミッ
クプレート９まで貫通させ、そこでセラミックワッシャ
ー１１を介してセラミックナット１２でとめられてい
る。この際、長さ方向への伸縮を自在とするため、セラ
ミックプレート９に設けられたボルト穴の少なくとも１
つはブロックの長さ方向に所定の幅をもった形状とされ
ていると共に、個々のボルトがブロックの長さ方向に摺
動可能となるようにナット１２でとめられている。この
ようにすることにより、内部を通過する流体の流れによ
るブロックの損傷や、ダスト、スケール等によるブロッ
クの損傷を低減することができる。また、セラミックプ
レートは耐熱性が優れるので、高温用としても優れる。FIG. 6 shows still another embodiment in which the surface of the inorganic fiber block 4 is covered with a ceramic plate. This is also the inorganic fiber block 4.
May be performed on the entire surface, or may be only a weak portion such as a joint between inorganic fiber blocks. The ceramic plate may be attached to the inorganic fiber block 4 by any method, but in the drawing, a ceramic bolt 10 attached to the channel 5 is penetrated to the ceramic plate 9 placed on the surface of the block 4, and a ceramic washer 11 is placed there. It is fastened by a ceramic nut 12 through. At this time, in order to be able to freely expand and contract in the length direction, at least one of the bolt holes provided in the ceramic plate 9 is provided.
One has a shape having a predetermined width in the length direction of the block, and is fastened by a nut 12 so that individual bolts can slide in the length direction of the block. By doing so, it is possible to reduce damage to the block due to the flow of the fluid passing through the inside and damage to the block due to dust, scale, and the like. Further, since the ceramic plate has excellent heat resistance, it is also excellent for high temperature use.
【０００９】[0009]
【発明の効果】以上、要するに本発明によれば、次のご
とき優れた効果を発揮する。 （１）ブランケット状の繊維をアコーデオン式に折り畳
み、伸縮方向と一致させることにより、内部の断熱材が
伸縮管の伸縮に自在に追随することができる。 （２）断熱性が優れているため放散熱量が極めて小さ
く、また蓄熱量も小さいため省エネルギー効果が大き
い。 （３）繊維質をブロックに成形しているため、軽量で、
且つ、構造がシンプルであり、施工が極めて容易であ
る。 （４）無機質繊維のため、昇温乾燥に伴う設備や作業を
不要とする。 （５）サーマルスポーリングの発生や管路の微振動によ
る亀裂発生がない。In summary, according to the present invention, the following excellent effects can be obtained. (1) By accumulating the blanket-shaped fibers in an accordion manner and matching the direction of expansion and contraction, the heat insulating material inside can freely follow the expansion and contraction of the expansion and contraction tube. (2) The amount of heat dissipated is extremely small because of its excellent heat insulation properties, and the energy saving effect is great because its heat storage amount is also small. (3) Since the fiber is molded into a block, it is lightweight,
Moreover, the construction is simple and the construction is extremely easy. (4) Since the inorganic fibers are used, equipment and work for drying at elevated temperature are not required. (5) There is no occurrence of thermal spalling or cracking due to micro vibration of the pipeline.
【図１】 本発明に係る第１の実施例を示す斜視図であ
る。FIG. 1 is a perspective view showing a first embodiment according to the present invention.
【図２】 本発明に係る第１の実施例を示す側面図であ
る。FIG. 2 is a side view showing the first embodiment according to the present invention.
【図３】 図２をＡ−Ａ面で切った断面図である。FIG. 3 is a cross-sectional view of FIG. 2 taken along the line AA.
【図４】 図２の部分拡大図である。FIG. 4 is a partially enlarged view of FIG. 2;
【図５】 同第２実施例を示す部分断面図である。FIG. 5 is a partial sectional view showing the second embodiment.
【図６】 同別の実施例を示す部分断面図である。FIG. 6 is a partial sectional view showing another embodiment of the present invention.
【図７】 従来の実施例を示す断面図である。FIG. 7 is a sectional view showing a conventional example.
【図８】 従来の別の実施例を示す断面図である。FIG. 8 is a sectional view showing another conventional example.
１・・伸縮管金物本体 ２・・ベローズ ３・・繊維質耐火材 ４・・繊維質耐火材ブロック ５・・チャンネル ６・・ビーム ７・・取付けボルト ８・・繊維質耐火材クロス ９・・セラミックプレート １０・・セラミックボルト １１・・セラミックワッシャー １２・・セラミックナット １３・・スタッド １４・・スタッドピン １５・・キャスタブル １６・・セラミックファイバー 1 ··· Telescopic pipe fitting body 2 ··· Bellows 3 ··· Fibrous refractory material 4 · · · Fibrous refractory material block 5 · · Channel 6 · · · Beam 7 · · · Mounting bolts 8 · · · Fibrous refractory material cloth 9 · · · Ceramic plate 10, Ceramic bolt 11, Ceramic washer 12, Ceramic nut 13, Stud 14, Stud pin 15, Castable 16, Ceramic fiber
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平３−288639（ＪＰ，Ａ) 実開 昭60−33199（ＪＰ，Ｕ) 実開 昭62−52894（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F16L 59/153 F16L 51/02 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-288639 (JP, A) Japanese Utility Model Showa 60-33199 (JP, U) Japanese Utility Model Utility Model Showa 62-52894 (JP, U) (58) Field (Int.Cl. 7 , DB name) F16L 59/153 F16L 51/02
Claims (3)
縮管の内部断熱構造において、シート状に成形した無機
繊維を所定の幅で交互に折り曲げてアコーデオン形状の
無機繊維ブロックとし、この無機繊維ブロックの裏面に
は伸縮管の内側に配設するための支持金具であって、長
さ方向に伸縮自在となるように２つ以上に分割された支
持金具を取り付けると共に、この支持金具を介して伸縮
管の内側に無機繊維ブロックを配設したことを特徴とす
る高温用伸縮管の内部断熱構造。In an internal heat insulating structure of a telescopic tube in which a refractory material is disposed inside a telescopic tube, an inorganic fiber formed into a sheet is alternately bent at a predetermined width to form an accordion-shaped inorganic fiber block, On the back surface of the inorganic fiber block, there is provided a support fitting for being disposed inside the telescopic tube, the support fitting divided into two or more so as to be able to expand and contract in the longitudinal direction. An internal heat-insulating structure for a high-temperature telescopic tube, wherein an inorganic fiber block is disposed inside the telescopic tube through the inside.
た無機繊維を耐熱鋼製糸で紡織したシートが表面に現れ
るように無機繊維ブロックの折り曲げ部に狭着したもの
である請求項１記載の高温用伸縮管の内部断熱構造。2. The high-temperature inorganic fiber block according to claim 1, wherein the inorganic fiber block is narrowly attached to a bent portion of the inorganic fiber block so that a sheet obtained by spinning the inorganic fiber formed into a sheet shape with heat-resistant steel yarn appears on the surface. Heat insulation structure for telescopic tube
レートで被覆してなる請求項１記載の高温用伸縮管の内
部断熱構造。3. The heat insulating structure according to claim 1, wherein the surface of the inorganic fiber block is covered with a ceramic plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06283851A JP3128108B2 (en) | 1994-11-17 | 1994-11-17 | Internal insulation structure of telescopic tube for high temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06283851A JP3128108B2 (en) | 1994-11-17 | 1994-11-17 | Internal insulation structure of telescopic tube for high temperature |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08145282A JPH08145282A (en) | 1996-06-07 |
| JP3128108B2 true JP3128108B2 (en) | 2001-01-29 |
Family
ID=17670995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06283851A Expired - Fee Related JP3128108B2 (en) | 1994-11-17 | 1994-11-17 | Internal insulation structure of telescopic tube for high temperature |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3128108B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5559413B1 (en) * | 2013-11-11 | 2014-07-23 | 鹿島建設株式会社 | Fireproof structure of flexible joints for underground structures |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012219922A (en) * | 2011-04-08 | 2012-11-12 | Nippon Steel Engineering Co Ltd | Transfer piping and transfer system for molten metal |
-
1994
- 1994-11-17 JP JP06283851A patent/JP3128108B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5559413B1 (en) * | 2013-11-11 | 2014-07-23 | 鹿島建設株式会社 | Fireproof structure of flexible joints for underground structures |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08145282A (en) | 1996-06-07 |
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