JPH0231307B2 - - Google Patents
Info
- Publication number
- JPH0231307B2 JPH0231307B2 JP62046680A JP4668087A JPH0231307B2 JP H0231307 B2 JPH0231307 B2 JP H0231307B2 JP 62046680 A JP62046680 A JP 62046680A JP 4668087 A JP4668087 A JP 4668087A JP H0231307 B2 JPH0231307 B2 JP H0231307B2
- Authority
- JP
- Japan
- Prior art keywords
- refractory
- wall
- heat storage
- refractories
- unevenness
- 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 - Lifetime
Links
- 238000005338 heat storage Methods 0.000 claims description 19
- 239000011819 refractory material Substances 0.000 claims description 14
- 230000000694 effects Effects 0.000 description 5
- 238000005266 casting Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
Landscapes
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Glass Melting And Manufacturing (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、ガラス溶融炉等の蓄熱室に用いる耐
火物に関するもので、特に溶融鋳造法によりガラ
スを作る蓄熱室に適した耐火物に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a refractory used in a heat storage chamber such as a glass melting furnace, and particularly to a refractory suitable for a heat storage chamber in which glass is produced by a melt casting method.
従来の技術
ガラス溶融炉の吹出口から排出された排ガス
は、蓄熱室に導かれて蓄熱用耐火物を加熱する。
この際、高温の排ガスから耐火物への伝熱は輻射
伝熱が主体である。Prior Art Exhaust gas discharged from the outlet of a glass melting furnace is guided to a heat storage chamber and heats a heat storage refractory.
At this time, heat transfer from the high-temperature exhaust gas to the refractory is mainly through radiation heat transfer.
これに反し、予熱された耐火物により冷めた空
気を加熱する場合には、専ら対流による伝熱に依
存しなければならない。その為に蓄熱室用耐火物
は大きな比表面積を持つことが極めて重要であ
り、空気の流れも層流よりはむしろ乱流であるこ
とが望ましい。 In contrast, when heating cold air with preheated refractories, one must rely exclusively on convective heat transfer. For this reason, it is extremely important that the refractory for the heat storage chamber have a large specific surface area, and it is desirable that the air flow be turbulent rather than laminar.
これらの蓄熱室用耐火物の形状は、一般的には
角柱状のものが用いられる。従来では、十字形の
ものや、角筒形（実開昭53−56452号公報及び特
開昭55−149139号公報参照）のものが開示されて
いる。また、これらの一部は溶融鋳造法による耐
火物即ち一般に電鋳耐火物と称されるもので形成
されていた。 The shape of these refractories for heat storage chambers is generally prismatic. Conventionally, cross-shaped ones and rectangular cylindrical ones (see Japanese Utility Model Application Publication No. 53-56452 and Japanese Unexamined Patent Application Publication No. 55-149139) have been disclosed. In addition, some of these were made of refractories made by melt casting, that is, what is generally called electrocast refractories.
第５図は特開昭55−149139号公報に開示された
耐火物を示しており、角筒状のものである。これ
は八角形の外輪部と、積断面において中心を通る
四角形の流路を有し、ほぼ均一な壁厚を有してい
る。 FIG. 5 shows a refractory disclosed in Japanese Patent Application Laid-Open No. 55-149139, which has a rectangular tube shape. It has an octagonal outer ring, a rectangular flow path passing through the center in cross section, and a substantially uniform wall thickness.
使用に際し、これらの多数を互いの稜面が接す
るように並べて層を作り、この層を垂直に数段重
ねることにより上下に通じた断面四角形の流路を
多数作つている。そして、これらの流路の中を高
温の排ガスと冷えた空気を交互に流して熱交換を
行つている。 In use, a large number of these are lined up so that their ridges are in contact with each other to form a layer, and these layers are stacked vertically in several stages to create a large number of channels with square cross sections that communicate vertically. Heat exchange is performed by alternately flowing hot exhaust gas and cold air through these channels.
発明が解決しようとする問題点
しかしながら、上記技術においては比表面積が
未だ不足し、いつそうの改善が要請されていた。
しかも、気体の流路壁はほぼ平滑であるため、ガ
ス流は層流として流れ、乱流とはならず、対流伝
熱を有効に行わせしめることが困難であつた。Problems to be Solved by the Invention However, the above technology still lacks a specific surface area, and improvements have always been desired.
Moreover, since the walls of the gas flow path are substantially smooth, the gas flow is laminar and not turbulent, making it difficult to effectively conduct convective heat transfer.
さらに、この蓄熱室用耐火物は、使用に際し、
稜面で互いに接触するように配置されるが、この
稜面が平滑であるために滑り易く全体として安定
な構造にはならなかつた。その結果、高く積み上
げたとき、外力によつて崩れやすかつた。このよ
うなことから、蓄熱室の能力及び安全性が低かつ
た。 Furthermore, when using this refractory for heat storage chambers,
They are arranged so that they are in contact with each other at their ridges, but because these ridges are smooth, they tend to slip easily and the structure as a whole is not stable. As a result, when stacked high, they tended to collapse under external forces. For this reason, the capacity and safety of the heat storage chamber were low.
発明の目的
本発明は上記問題点を解消するためになされた
ものであり、ガス流を有効に対流伝熱させ、高く
積み上げたとき外力により崩れ難い蓄熱室用耐火
物を提供することを目的としている。Purpose of the Invention The present invention has been made in order to solve the above-mentioned problems, and its purpose is to provide a refractory for a heat storage chamber that effectively conducts convective heat transfer in a gas flow and is resistant to collapse due to external force when stacked high. There is.
発明の要旨
本発明は、内壁部及び外壁部の側面に付した凹
凸が蛇腹状に連続した構造を持つ角筒状耐火物の
複数体が、各々の稜面部の蛇腹状の凹凸を互いに
噛み合わせて積まれることを特徴とする蓄熱室用
耐火物を要旨としている。SUMMARY OF THE INVENTION The present invention provides a structure in which a plurality of rectangular cylindrical refractories each having a structure in which concavities and convexities on the side surfaces of an inner wall portion and an outer wall portion are continuous in a bellows shape, the concave and convex portions of each ridge surface interlocking with each other. This article focuses on refractories for heat storage chambers, which are characterized by being stacked together.
問題点を解決するための手段
本発明では、角筒状レンガの内壁部及び外壁部
の側面に付した凹凸が蛇腹状に連続した構造を持
つことにより、比表面積を増大させている。Means for Solving the Problems In the present invention, the specific surface area is increased by having a structure in which the concavities and convexities provided on the side surfaces of the inner wall and outer wall of the rectangular cylindrical brick are continuous in a bellows shape.
隣の角筒状耐火物との接合面である稜面部にも
凹凸を付し、互いに噛み合つて一体となり、高い
安定性を有している。 The ridge surface, which is the joint surface with the adjacent rectangular cylindrical refractory, is also provided with unevenness, which meshes with each other and becomes a single unit, providing high stability.
また、４つの角筒状耐火物の外壁面によつて形
成される流路についても同様である。すなわち、
本願発明では、角筒状耐火物の内壁部のみなら
ず、外壁部にも凹凸を付して比表面積を大きくし
ており、高い伝熱効果及び乱流効果を与えてい
る。 The same applies to the flow path formed by the outer wall surfaces of the four rectangular cylindrical refractories. That is,
In the present invention, not only the inner wall of the rectangular cylindrical refractory but also the outer wall are provided with irregularities to increase the specific surface area, thereby providing a high heat transfer effect and a turbulent flow effect.
比表面積の増加率は40％以上にするのが好まし
い。40％より小さい場合は、凸部の山と凹部の谷
の高低差を大きく設定しがたく、そのためにガス
流を著しい乱流とすることができないことがあ
る。 The rate of increase in specific surface area is preferably 40% or more. If it is less than 40%, it is difficult to set a large height difference between the peaks of the convex portions and the valleys of the concave portions, and therefore it may not be possible to make the gas flow significantly turbulent.
作 用
本発明による耐火物の形状は、上記従来技術と
同様に角筒形に分類されるものであるが、本発明
による蓄熱室用耐火物のガス流路壁面は凹凸が蛇
腹状に連続した構造を有しており、この凹凸構造
により平滑な従来技術のものに較べ比表面積が増
大される。また、ガス流路壁面が凹凸になつたた
め、この中を通過する冷めた空気や高温の排ガス
は著しい乱流となる。Effect The shape of the refractory according to the present invention is classified as a rectangular tube shape like the above-mentioned conventional technology, but the gas flow path wall surface of the refractory for a heat storage chamber according to the present invention has a continuous concavity and convexity in a bellows shape. This uneven structure increases the specific surface area compared to the smooth surface of the prior art. Furthermore, since the gas flow path wall surface is uneven, the cold air and high temperature exhaust gas passing through the wall surface become extremely turbulent.
本発明においては、稜面部にも凹凸を付すの
で、使用に際し本発明の角筒状を蓄熱室に多数配
置したとき、その稜面部は隣接する他の稜面部と
互いに噛み合い、外力によつて崩れにくくなつ
た。 In the present invention, the ridges are also made uneven, so when a large number of rectangular cylinders of the present invention are arranged in a heat storage chamber during use, the ridges mesh with other adjacent ridges and collapse due to external force. It became difficult.
実施例
第１図と第２図は本発明の蓄熱室用耐火物の一
例を示しており、この耐火物は八角形外輪郭１
と、積断面、言換れば上面１ａと下面１ｂにおい
て中心を通る四角形の流路７を持つている。この
流路７の寸法の一例をあげれば、たて、よこがそ
れぞれ150mm、150mmである。そして外輪郭１の壁
の厚みは、凹凸の谷と谷の距離Ｗと凹凸の高さの
合計であり、たとえば、ほぼ40mmである。この蓄
熱室用耐火物は溶融鋳造法により作られている。Embodiment FIGS. 1 and 2 show an example of a refractory for a heat storage chamber according to the present invention, and this refractory has an octagonal outer contour 1
In other words, it has a rectangular flow path 7 passing through the center of the cross section, that is, the upper surface 1a and the lower surface 1b. To give an example of the dimensions of this flow path 7, the vertical and horizontal dimensions are 150 mm and 150 mm, respectively. The wall thickness of the outer contour 1 is the sum of the distance W between the valleys of the unevenness and the height of the unevenness, and is approximately 40 mm, for example. This refractory for a heat storage chamber is made by a melt casting method.
上面１ａと下面１ｂを除く他の外壁部１ｃ及び
ガム流路壁面としての内壁部１ｄ、つまり内壁部
及び外壁部の側面にそれぞれ凹凸４及び凹凸５が
設けてある。これらの凹凸４，５の形状は蛇腹状
で、高さｈがたとえば10mmの山と谷が交互に連続
した形状である。これらの山の稜線は、上面１ａ
と下面１ｂに平行であり、山の頂角θはたとえば
90度である。そして、耐火物の高さＨは、たとえ
ば150mmである。第２図は第１図のＡ−Ａ線にお
ける断面を示すもので、第１図の理解を助けるも
のである。 Irregularities 4 and recesses 5 are provided on the outer wall portion 1c other than the upper surface 1a and the lower surface 1b, and on the inner wall portion 1d as the wall surface of the gum flow path, that is, on the side surfaces of the inner wall portion and the outer wall portion, respectively. The shape of these unevenness 4, 5 is bellows-like, and has a height h of, for example, 10 mm, and a series of alternating peaks and valleys. The ridgelines of these mountains are the top surface 1a
is parallel to the lower surface 1b, and the apex angle θ of the mountain is, for example,
It is 90 degrees. The height H of the refractory is, for example, 150 mm. FIG. 2 shows a cross section taken along the line A--A in FIG. 1, which helps in understanding FIG.
第３図と第４図は本発明の複数の耐火物が接合
されたときの稜面における接合部を示す図であ
る。これらの稜面部８には、内壁部１ｄ及び外壁
部１ｃに設けた凹凸４，５と同様の蛇腹状の凹凸
６が設けてある。左側の耐火物は右側の耐火物と
稜面部８，８において噛み合うようになつてい
る。そして、この図の紙面において、左側の耐火
物は上面及び下面を逆にすると右側の耐火物とな
る。即ち、全て同一形状の耐火物で第３図の如き
耐火物煉瓦の組み合わせが可能となるように山と
谷の配置がなされている。 FIG. 3 and FIG. 4 are diagrams showing a joint portion at a ridge surface when a plurality of refractories of the present invention are joined. These ridge portions 8 are provided with bellows-shaped unevenness 6 similar to the unevenness 4 and 5 provided on the inner wall portion 1d and the outer wall portion 1c. The refractory on the left side engages with the refractory on the right side at the ridge portions 8, 8. In the paper of this figure, the refractory on the left becomes the refractory on the right when the top and bottom surfaces are reversed. That is, the peaks and valleys are arranged so that it is possible to combine refractory bricks as shown in FIG. 3 using refractories all having the same shape.
その結果、この実施例の蓄熱室用耐火物では比
表面積は
８×0.15×0.15×√２／0.23×0.23×0.15＝32.1m2／m3
に達した。これをガス流路壁面に凹凸を設けてい
ない従来技術のもの（壁厚み40mmで150×150mmの
流路断面、高さ150mm）の前記値22.6m2／m3と較
べると、実に42％も比表面積が増大した。 As a result, the specific surface area of the heat storage chamber refractory of this example reached 8×0.15×0.15×√2/0.23×0.23×0.15=32.1 m 2 /m 3 . Comparing this to the value of 22.6 m 2 /m 3 for the conventional gas flow channel without unevenness on the gas flow channel wall (wall thickness 40 mm, flow channel cross section of 150 x 150 mm, height 150 mm), it is actually 42% higher. Specific surface area increased.
ところで、本発明は上述した実施例に限定され
ない。凹凸の形は三角形状の山と谷に限らない。
山の頂角は90゜に限らない。 By the way, the present invention is not limited to the embodiments described above. The shape of the unevenness is not limited to triangular peaks and valleys.
The peak angle of the mountain is not limited to 90°.
発明の効果
以上説明したことから明らかなように、本発明
によれば、ガスの流路断面の凹凸が蛇腹状に連続
した構造によつて高温の耐火物の壁面付近でガス
流の乱流が生じる結果、壁面で熱交換を終えて高
温になつた空気は流路中央部に導かれ、逆に冷た
い空気は耐火物壁面に導かれることにより常に耐
火物と空気の温度差が大きくなり、伝熱効率が非
常に高まることとなつた。さらに比表面積が凹凸
を付さない壁面より非常に大きいので、ガス流を
著しい乱流とすることができる。したがつて、さ
らに伝熱効果を高められる。Effects of the Invention As is clear from the above explanation, according to the present invention, the turbulence of the gas flow near the wall surface of the high-temperature refractory is prevented by the structure in which the unevenness of the cross section of the gas flow path is continuous in a bellows shape. As a result, the air that has become hot after heat exchange on the wall is guided to the center of the flow path, and conversely, the cold air is guided to the refractory wall, which always increases the temperature difference between the refractory and the air, which impedes the transmission. This resulted in a significant increase in thermal efficiency. Furthermore, since the specific surface area is much larger than that of a wall surface without irregularities, the gas flow can be made extremely turbulent. Therefore, the heat transfer effect can be further enhanced.
また、稜面部にも凹凸を設けるので、互いに隣
接する耐火物とその部分で噛み合うことにより一
体となる結果、力学的に極めて安定し、高く積み
上げても容易に崩れることがない。したがつて蓄
熱室の能力及び安全性が向上する。 In addition, since the ridge surface is also provided with irregularities, the refractories that are adjacent to each other engage with each other at these parts to form a single unit, which is extremely stable mechanically and does not easily collapse even when stacked high. Therefore, the capacity and safety of the heat storage chamber are improved.
第１図は、この発明による蓄熱室用耐火物の好
適な実施例を示す斜視図、第２図は第１図のＡ−
Ａ線における断面図、第３図は第１図の耐火物が
複数接合されたときの稜面における接合部を示す
平面図、第４図はその接合部のＢ−Ｂ線における
断面図、第５図は従来の耐火物が配置された状態
を示す平面図である。
１……外郭部、１ａ……上面、１ｂ……下面、
１ｃ……外壁部、１ｄ……内壁部、４，５，６…
…凹凸、７……流路、８……稜面部。
FIG. 1 is a perspective view showing a preferred embodiment of the refractory for a heat storage chamber according to the present invention, and FIG.
3 is a plan view showing the joint at the ridge surface when a plurality of refractories shown in FIG. FIG. 5 is a plan view showing a state in which conventional refractories are arranged. 1...Outer part, 1a...Top surface, 1b...Bottom surface,
1c...Outer wall part, 1d...Inner wall part, 4, 5, 6...
...Unevenness, 7... Channel, 8... Ridge surface portion.
Claims (1)
状に連続した構造を持つ角筒状耐火物の複数体
が、各々の稜面の蛇腹状の凹凸を互いに噛み合わ
せて積まれることを特徴とする蓄熱室用耐火物。 ２ 内壁部及び外壁部の側面に凹凸を付したこと
により凹凸を付さない平面の側壁部よりも比表面
積を40％以上増加させたことを特徴とする特許請
求の範囲第１項に記載の蓄熱室用耐火物。[Scope of Claims] 1. A plurality of rectangular cylindrical refractories each having a structure in which concavities and convexities on the side surfaces of the inner and outer walls are continuous in a bellows-like manner, the concave and convexities of the respective ridges interlocking with each other. A refractory for heat storage chambers, which is characterized in that it can be piled up. 2. The structure according to claim 1, characterized in that the specific surface area is increased by 40% or more compared to a flat side wall without unevenness by providing unevenness on the side surfaces of the inner wall and outer wall. Refractories for heat storage chambers.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62046680A JPS63213794A (en) | 1987-03-03 | 1987-03-03 | Refractory for heat accumulating chamber |
| US07/159,939 US4874034A (en) | 1987-03-03 | 1988-02-24 | Refractory unit for a heat regenerator |
| FR888802684A FR2611880B1 (en) | 1987-03-03 | 1988-03-03 | REFRACTORY UNIT FOR A HEAT RECOVERY |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62046680A JPS63213794A (en) | 1987-03-03 | 1987-03-03 | Refractory for heat accumulating chamber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63213794A JPS63213794A (en) | 1988-09-06 |
| JPH0231307B2 true JPH0231307B2 (en) | 1990-07-12 |
Family
ID=12754091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62046680A Granted JPS63213794A (en) | 1987-03-03 | 1987-03-03 | Refractory for heat accumulating chamber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63213794A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0592405U (en) * | 1992-05-21 | 1993-12-17 | フジオーゼックス株式会社 | Tappet for internal combustion engine |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2628403B2 (en) * | 1990-09-13 | 1997-07-09 | 東芝モノフラックス株式会社 | Refractory segment for heat storage room |
| US5154224A (en) * | 1990-11-02 | 1992-10-13 | Toshiba Ceramics Co., Ltd. | Refractory brick for a glass fusion furnace |
| JP5224254B1 (en) * | 2012-10-30 | 2013-07-03 | 矩義所建築有限会社 | chimney |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55149139A (en) * | 1979-02-20 | 1980-11-20 | Veitscher Magnesitwerke Ag | Squareecolumn shape brick |
| JPS5928317U (en) * | 1982-08-17 | 1984-02-22 | 株式会社ニシムラ | Lightweight umbrella rib made of round pulp |
-
1987
- 1987-03-03 JP JP62046680A patent/JPS63213794A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55149139A (en) * | 1979-02-20 | 1980-11-20 | Veitscher Magnesitwerke Ag | Squareecolumn shape brick |
| JPS5928317U (en) * | 1982-08-17 | 1984-02-22 | 株式会社ニシムラ | Lightweight umbrella rib made of round pulp |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0592405U (en) * | 1992-05-21 | 1993-12-17 | フジオーゼックス株式会社 | Tappet for internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63213794A (en) | 1988-09-06 |
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