JPS58153088A - Radiation heating method and radiator - Google Patents
Radiation heating method and radiatorInfo
- Publication number
- JPS58153088A JPS58153088A JP3573782A JP3573782A JPS58153088A JP S58153088 A JPS58153088 A JP S58153088A JP 3573782 A JP3573782 A JP 3573782A JP 3573782 A JP3573782 A JP 3573782A JP S58153088 A JPS58153088 A JP S58153088A
- Authority
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- Japan
- Prior art keywords
- radiator
- hole
- ceramic block
- heat
- heated
- 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.)
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Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は各種の加熱炉における輻射加熱効率を増進せ１
〜める方法及び該方法に使用−ｔろ輻射体に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention improves radiation heating efficiency in various heating furnaces.
The present invention relates to a method of irradiation and a radiator used in the method.
熱効率の向−ヒは古くより當に１叫ばれているが、最近
は全般的な省エネルギ問題が大きく取」二げられている
ことより、熱の有効利用に対する関心及び要望が強い。Improving thermal efficiency has been a matter of great concern for a long time, but as general energy conservation issues have recently become a major focus, there has been a strong interest in and desire for effective use of heat.
／１１１熱炉における熱効率の向上の為に（ｄ１炉壁、
被加熱物の出入口等よりの熱放散の低下、排ガス温度の
低下又はこれらの放散熱の回収等に意が注がえしている
。加熱炉内において被加熱物への伝熱量を増力口するこ
とは、加熱炉の主目的の遂行に面接的に寄与することに
なり１排ガスの温度も低下するので最も効果的である。/111 To improve thermal efficiency in a thermal furnace (d1 furnace wall,
Attention is being paid to reducing heat dissipation from the entrance and exit of the heated object, reducing exhaust gas temperature, and recovering this dissipated heat. Increasing the amount of heat transferred to the object to be heated in the heating furnace is most effective because it directly contributes to achieving the main purpose of the heating furnace and also lowers the temperature of the exhaust gas.
高温ガスによる加熱炉における被加熱物への伝熱は輻射
によるものが支配的であって、対流、伝導によるものは
全体の１０係以下又は無視できる場合が多い。従って加
熱炉の設計には一般に輻射伝熱効率の向上の為の諸施策
がとられている。Heat transfer by high-temperature gas to objects to be heated in a heating furnace is mainly due to radiation, and convection and conduction are often less than a factor of 10 or can be ignored. Therefore, in the design of heating furnaces, various measures are generally taken to improve the efficiency of radiant heat transfer.
加熱炉内において被加熱物への伝熱量全増加させる方法
と１〜、加熱室出口１１１１の排ガス流路に輻射体金配
置し、該輻射体Ｖこて排ガスの保有熱を吸収ｊ〜、吸収
熱全被加熱物に向けて輻射し、被加熱物全加熱する方法
は極めて有効な方法であり、現在よく知られていること
である。該方法の具体的な典型例は、加熱室出口側の排
ガス流路に、金網ないし耐熱性の繊維状の物質よりなる
熱回収体を設け、該熱回収困りこより排ガスの保イ１熱
を吸収して被加熱物に回けて輻射し、被加熱物を加熱す
る方法である。A method for increasing the total amount of heat transferred to the object to be heated in a heating furnace. The method of completely heating the object by radiating heat toward the object to be heated is an extremely effective method and is currently well known. A specific typical example of this method is to install a heat recovery body made of a wire mesh or a heat-resistant fibrous material in the exhaust gas flow path on the exit side of the heating chamber, and absorb the retained heat of the exhaust gas rather than recovering the heat. This is a method of heating the object by radiating it around the object to be heated.
しかしながら、該方法において便用する熱回収体の金網
は、通気性が犬で排ガスよりの熱回収が充分に行なわれ
難く、捷た耐熱性が低いので高温での使用が困難である
。また、従来の多くが金属製であるため輻射率が低い。However, the wire mesh used as the heat recovery body used in this method has poor breathability, making it difficult to sufficiently recover heat from exhaust gas, and has low heat resistance when shattered, making it difficult to use at high temperatures. Furthermore, since most conventional devices are made of metal, their emissivity is low.
セラミックファイバを使用する場合には耐熱性、輻射率
については改善されるが、使用温度も１４００°Ｃが限
度であり、高価である。When ceramic fibers are used, heat resistance and emissivity are improved, but the operating temperature is also limited to 1400°C and it is expensive.
本発明の目的は、加熱炉における高温ガスによる被加熱
物の輻射加熱効率全向上せしめる方法及び該方法に使用
１〜で好適な輻射体を提供するにある。An object of the present invention is to provide a method for completely improving the radiation heating efficiency of a heated object using high-temperature gas in a heating furnace, and a radiator suitable for use in the method.
本発明の適用しつる加熱炉としては種々のものがあり、
例えば窯業用炉（ガラス、煉瓦、セメント等）、金属用
炉（鉄鋼、非鉄等）、生ゴミ焼却炉、発生炉等の被加熱
物に熱ｆｆ１４える用途に用いる炉であり、さらに非加
熱物自体が発熱するような炉であってもよい。There are various types of vine heating furnaces to which the present invention can be applied.
For example, it is a furnace used for applying heat to heated objects such as ceramic furnaces (glass, bricks, cement, etc.), metal furnaces (steel, non-ferrous metals, etc.), garbage incinerators, generation furnaces, etc. A furnace that itself generates heat may be used.
本発明による輻射加熱方法は、加熱室内の高温ガス流路
に、多数の平行な貫通孔を有するセラミックブロックを
、該貫通孔全ガス流路に傾けて、被加熱物に向けて配置
して行うことを特徴とする方法である。The radiation heating method according to the present invention is carried out by arranging a ceramic block having a large number of parallel through holes in a high temperature gas flow path in a heating chamber, with all of the through holes inclined toward the gas flow path, and facing the object to be heated. This method is characterized by the following.
不発明による輻射体は、前記の輻射加熱方法に使用して
好適々輻射体であり、１個又は複数個の開［］部を有す
る耐熱性枠体の開［コ部に、多数の平行な貫通孔ヲ有す
るセラミックブロックケ、該貫通孔全枠体面に傾けて、
嵌装してなるものである。The radiant body according to the invention is a radiant body suitable for use in the above-mentioned radiant heating method, and includes a plurality of parallel openings in the openings of a heat-resistant frame having one or more openings. A ceramic block with a through hole, the whole through hole tilted toward the body surface,
It is fitted.
本発明の輻射加熱方法及び輻射体の好ましい態様におい
ては、前記セラミックブロックの貫通孔の径が１〜２０
０ｊπｍで、該ブロックの孔の貫通方向の環式が核化の
径の２匿以上である。In a preferred embodiment of the radiation heating method and radiator of the present invention, the diameter of the through hole of the ceramic block is 1 to 20.
0jπm, the annular shape of the hole in the block in the penetrating direction is two or more times larger than the diameter of the nucleation.
本発明の輻射加熱方法の他の好ましい態様においては、
前記セラミックブロックケ、該ブロックの貫通孔がガス
流路に５〜２０度傾くように配置して行う。In another preferred embodiment of the radiation heating method of the present invention,
The ceramic blocks are arranged so that the through holes of the blocks are inclined at an angle of 5 to 20 degrees to the gas flow path.
本発明の輻射体の他の好ましい態様においては、前記セ
ラミックブロックを、該ブロックの貫通孔が枠体面に直
角より５〜２０度傾くように嵌装してなる。In another preferred embodiment of the radiator of the present invention, the ceramic block is fitted so that the through hole of the block is inclined at 5 to 20 degrees from the right angle to the frame surface.
本発明の輻射体の更に好ましい態様１（おいては、前記
耐熱性枠体（（開口部が複数個設けられ、各開口部ｖｃ
２個の前記ハニカム状セラミックブロックを、該枠体の
両側面の中間面に対称に、嵌装しである。A more preferable embodiment 1 of the radiator of the present invention (in which a plurality of openings are provided, each opening vc
The two honeycomb-shaped ceramic blocks are fitted symmetrically to the intermediate planes of both sides of the frame.
本発明で使用されるセラミックブロックの材質としては
、コージェライト、ジルコン、ジルコニア、アルミニラ
ムチタネ−１−、ムライト。The materials of the ceramic block used in the present invention include cordierite, zircon, zirconia, aluminum titanium-1, and mullite.
アルミナなど耐熱性のあるものが任意に選択しつる。A heat-resistant material such as alumina can be selected arbitrarily.
また、セラミックブロックの貫通孔の形状は、六角、四
角、三角２円など種々のものが可能である。Further, the shapes of the through holes in the ceramic block can be various, such as hexagonal, square, and triangular 2 circles.
第１図に本発明の方法を実施する加熱炉の一例を模型的
に断面図で示す。１はバーナ口で、重油等の燃焼バーナ
全取付け、高温燃焼ガスが加熱室２へ送られる。バーナ
口１に和名する個所より他設備の高温排ガス等を取込み
加熱室２−＼送られるようにしてあってもよい。加熱室
２内に（ｄ被り１熱物３、例えば煉瓦等、が収容されて
いる。被加熱物３は王として高温ガスの焔輻射及び炉壁
全弁しての固体輻射により加熱され、高温ガスは熱を奪
われ矢印のように排ガス通路４人１］には、被加熱物３
に向けて輻射体５が配置′されている。輻射体５は多数
の平行な貫通孔５Ａを有する例えばコージェライト質か
らなる・・ニカム状セラミックブロックよりなり、貫通
孔５Ａは矢印に示すガス流路に傾けである。FIG. 1 schematically shows, in sectional view, an example of a heating furnace for carrying out the method of the present invention. Reference numeral 1 denotes a burner port, where all combustion burners such as heavy oil are installed, and high-temperature combustion gas is sent to the heating chamber 2. The burner port 1 may be configured to take in high-temperature exhaust gas from other equipment from a location called the burner port 1 and send it to the heating chamber 2-\. A heated object 3, such as a brick, is housed in the heating chamber 2. The object 3 to be heated is heated by flame radiation of high-temperature gas and solid radiation from the entire furnace wall, and is heated to a high temperature. The gas is deprived of heat, and as shown by the arrow, the exhaust gas passage (4 people 1) is filled with objects to be heated (3).
A radiator 5 is disposed facing towards. The radiator 5 is made of a nicam-shaped ceramic block made of cordierite, for example, and has a large number of parallel through holes 5A, and the through holes 5A are inclined toward the gas flow path shown by the arrow.
貫通孔５Ａの方向がガス流の方向と一致するときは、ガ
スより輻射体５への伝熱効率が低下し、また、貫通孔５
への方向が被加熱物３に向くことになるので、被加熱物
５・＼の輻射効率が低下する。ガス流路に対する傾度は
炉の構造、被加熱物の状態等によるが一般に５〜２０度
程度がよい。When the direction of the through hole 5A matches the direction of the gas flow, the efficiency of heat transfer from the gas to the radiator 5 decreases, and the through hole 5
Since the direction of the radiation is directed toward the object to be heated 3, the radiation efficiency of the object to be heated 5 is reduced. The inclination with respect to the gas flow path depends on the structure of the furnace, the state of the object to be heated, etc., but is generally about 5 to 20 degrees.
貫通孔５Ａの径については、径が小さく凡の数か多い方
がガスより輻射体への伝熱効率がよくなると共に、輻射
面の凹凸が多くなり輻射効率が上昇するので好ましい。Regarding the diameter of the through-holes 5A, it is preferable that the diameter is small and the diameter is small because the efficiency of heat transfer to the radiator is better than that of the gas, and the radiation efficiency increases because the radiation surface has more irregularities.
しかしながら粉塵かつ剪り易くなる。通常のガス燃焼炉
では、１〜５ ｍｍ程度の孔径の貫通孔でよいが、重油
燃焼炉やキャリオーバがでる被加熱物の加熱炉では更に
孔径全天きくする必要がある。ガラス炉では孔径が１０
０朋以上の貫通孔を有する輻射体の使用が適当であるこ
ともあり、一般には２００臨で十分である。また、輻射
体の孔の貫通方向の厚きが薄いときは、被加熱物に対す
る輻射面に、裏面まで貫通する空隙が生ずることとなり
輻射率が低下するので、輻射体の孔の貫通方向の厚さは
孔の径の２倍以上が望まし７い。However, it becomes dusty and easy to prune. In a normal gas combustion furnace, a through hole with a hole diameter of about 1 to 5 mm is sufficient, but in a heavy oil combustion furnace or a heating furnace for heating objects that cause carryover, it is necessary to make the hole diameter even larger throughout. In a glass furnace, the pore size is 10
It may be appropriate to use a radiator with a through hole of 0 or more holes, and 200 holes is generally sufficient. In addition, when the thickness of the hole in the radiator in the direction of penetration is small, a void will be created on the radiation surface facing the object to be heated, penetrating all the way to the back surface, reducing the emissivity. The diameter is preferably at least twice the diameter of the hole.
第２図に輻射体の形状及び配置の例を示す。FIG. 2 shows an example of the shape and arrangement of the radiator.
図面の右側に被加熱物があり、熱ガスは図面の右より左
に向けて概ね水モに流れるとしである。The object to be heated is on the right side of the drawing, and the hot gas flows generally from the right to the left of the drawing.
前述のように輻射体５は、貫通孔５Ａｉガス流路Ｖこ傾
けて、被加熱物に向けて配置される。輻射効率をよくす
る為には、輻射体の輻射面を被加熱物に正対せしめるこ
とが望ましい。また、一般に被加熱物の方向と熱ガスの
流れて来る方向が一致しているので、輻射面に直角に貫
通孔を設けである輻射体を被加熱物に正対きせると、貫
通孔がガス流方向と一致するので望ましくない。このよ
うな場合は第２図（ａ）のように輻射体を傾けて被加熱
物に対向をせる必要がある。As described above, the radiator 5 is arranged to face the object to be heated with the gas flow path V of the through hole 5Ai tilted. In order to improve radiation efficiency, it is desirable that the radiant surface of the radiator directly faces the object to be heated. In addition, since the direction of the object to be heated and the direction in which the hot gas flows are generally the same, if a radiator with through holes perpendicular to the radiation surface is placed directly facing the object to be heated, the through holes will cause the gas to flow. This is undesirable because it coincides with the flow direction. In such a case, it is necessary to tilt the radiator to face the object to be heated as shown in FIG. 2(a).
第２図（ｂ）の輻射体では上述の問題を解決することが
できるが、ハニカム状などのセラミック輻射体の製造が
若干面倒になる。更に第２図（（り、（（１）のように
２つのハニカム状セラミックブロックを貫通孔を一致き
せて組合せて一個の輻射体とするときは、貫通孔が屈折
するので輻射体の熱吸収率及び輻射率が向上する。実際
には炉及び被加熱物が種々の形状をなし、熱ガスの流れ
方向も異なるので、その状況に応じて貫通孔をガスの流
れ方向に傾けて、出来る丈輻射率の高い状態に配置する
。Although the radiator shown in FIG. 2(b) can solve the above-mentioned problems, manufacturing of the honeycomb-shaped ceramic radiator is somewhat complicated. Furthermore, when two honeycomb-shaped ceramic blocks are combined to form a single radiator with their through holes aligned as shown in Figure 2 ((1), the through holes are refracted, so the heat absorption of the radiator is reduced. In reality, furnaces and objects to be heated have various shapes, and the flow direction of hot gas also differs, so depending on the situation, the through hole can be tilted in the direction of gas flow to increase the length. Place it in a state with high emissivity.
実際の炉で加熱室の出口を塞ぐ範囲の輻射体を一個のハ
ニカム状セラミックブロックで形成することは困難であ
る。それで、Ｐ）Ｔ要の面積の耐熱性の枠体にハニカム
状セラミックブロックを嵌装して輻射体を形成−Ｔる。In an actual furnace, it is difficult to form the radiator that covers the outlet of the heating chamber with a single honeycomb-shaped ceramic block. Therefore, a radiator is formed by fitting a honeycomb-shaped ceramic block into a heat-resistant frame having an area of P)T.
かかる輻射体の一例を第６図及び第４図に示す。６Ａは
セラミックス、耐熱性金属等の枠体である。実施例の枠
体６Ａには２５１固の正方形の開口部が設けられである
。各開口部には第１図の実施例で使用したと同様のコー
ジェライト質のセラミックブロック５が嵌装され、接着
剤、セラミックスボルト等にて枠体６Ａに接着されて輻
射体６が形成されている、この実施例において、セラミ
ックブロックの大きさは約７５ｘ７５ｘ１５（厚さ）鰭
で、貫通孔の大きさは１．８ Ｘ １．８ ｍｍテある
。セラミックブロック５Ｖｃは両側面に直角に貫通する
孔が設けられている。従って輻射体６の枠体面を被加熱
物に正対せしめることが多いのでブロック５を枠体６八
面に直角より１ｏ度傾けて取付けである。また、各開口
部には２個の同様なブロック５を、両側面の中間面に対
称に暇イマ」けである。こ八により貫通孔が屈折せ１゜
められ、輻射体６の熱吸：■率及び輻射率が向上する。An example of such a radiator is shown in FIGS. 6 and 4. 6A is a frame made of ceramics, heat-resistant metal, or the like. The frame 6A of the embodiment is provided with a 251 square opening. A cordierite ceramic block 5 similar to that used in the embodiment shown in FIG. 1 is fitted into each opening, and is bonded to a frame 6A with adhesive, ceramic bolts, etc. to form a radiator 6. In this example, the size of the ceramic block is approximately 75 x 75 x 15 (thick) fins, and the through hole size is 1.8 x 1.8 mm. The ceramic block 5Vc has holes penetrating at right angles on both sides. Therefore, since the frame surface of the radiator 6 is often directly opposed to the object to be heated, the block 5 is mounted at an angle of 10 degrees from the right angle to the frame surface 6. In addition, two similar blocks 5 are placed in each opening symmetrically on the intermediate plane of both sides. The through hole is bent by 1°, and the heat absorption rate and emissivity of the radiator 6 are improved.
但し、この場合は、第２図（す、（ｄ）と異なり２つの
ブロック５は隔離しているので、下流側のブロックの吸
収熱は輻射及び枠体６Ａ（ｊ’介しての伝導により上流
側のブロックに伝熱さル、上流側ブロックより輻射され
る。図示の輻射体は、複数個組合せて更に広い面積とす
ることができるように上下縁に嵌合の為の溝及び突起が
形成しである。However, in this case, unlike in FIG. 2(d), the two blocks 5 are isolated, so the absorbed heat of the downstream block is transferred to the upstream block by radiation and conduction via the frame 6A (j'). The heat is transferred to the side block, and the heat is radiated from the upstream block.The illustrated radiator has grooves and protrusions for fitting on the upper and lower edges so that a larger area can be obtained by combining multiple radiators. It is.
第１図に示すような従来の加熱炉においてｖｌ熱室より
ガス通路へ排出される排ガスの温度が９００°Ｃであつ
ｆ（場合に、ガス通路入［］を概ね塞ぎ、孔径１０φη
ＩＷＬ、開孔率４０係、厚づ８０ｉ１１％のセラミック
ブロック會嵌装した輻射体を配置することにより排ガス
の温度は８’７０”Ｃに降下した。これにより１２チの
燃料節減となった。In a conventional heating furnace as shown in Fig. 1, when the temperature of the exhaust gas discharged from the vl heat chamber to the gas passage is 900°C and
By placing a radiator fitted with a ceramic block of IWL, porosity of 40, and thickness of 80I11%, the temperature of the exhaust gas was reduced to 8'70"C. This resulted in a fuel savings of 12 inches.
捷た別の例では１２００°Ｃの排ガスの温度を輻射体の
設置により１１２０°Ｃに低下することができた。In another example, the temperature of exhaust gas from 1200°C could be lowered to 1120°C by installing a radiator.
以上の如く、不発明の方法においては、セラミックブロ
ックの輻射体が、貫通孔がガス流路に傾くようにして、
高温ガス流路１１こ置かれるので、輻射体の高温ガスよ
りの熱吸収率及び被加熱（吻−＼の輻射率が犬であジ、
熱効率の向上に著しく役立つ。また、この輻射体の配置
場所は加熱室の出［］附近に限られることなく、被加熱
物に対向せしめ得る場所ならばどこでもよい。例えば、
第１図で一点鎖線で示すような位置でもよい。但し、排
ガスの温度付出来る限り降下することが熱効率の向上に
つながるので、このような場合は、加熱室附近と２個所
に設置するとよい。また、本発明の方法における輻射体
は、セラミックブロックであり、耐熱性（で優れ、量産
が可能であり、強度が犬、通気の圧損失が少ない、輻射
率が筒い等の凌れた利点を有す。As described above, in the uninvented method, the radiator of the ceramic block is arranged so that the through hole is inclined toward the gas flow path,
Since the high temperature gas flow path 11 is placed, the heat absorption rate from the high temperature gas of the radiator and the emissivity of the heated (proboscis)
Significantly helps improve thermal efficiency. Further, the radiator is not limited to the vicinity of the exit of the heating chamber, but may be placed anywhere as long as it can face the object to be heated. for example,
The position may be as shown by the dashed line in FIG. However, since lowering the temperature of the exhaust gas as much as possible leads to an improvement in thermal efficiency, in such a case, it is better to install it in two places, one near the heating chamber. In addition, the radiator in the method of the present invention is a ceramic block, which has excellent heat resistance, can be mass-produced, has superior strength, has low pressure loss during ventilation, and has a high emissivity. has.
′また、不発明の方法に使用するに好適な輻射体は耐熱
性枠体にセラミックブロックが適切な状態で嵌装されて
形成しであるので、輻射体がセラミックグロックである
ことによる上述の利点を発揮［７ていると共Ｖこ大面積
の輻射体の要望に簡単に応することができる。'Also, since the radiator suitable for use in the uninvented method is formed by fitting a ceramic block in a heat-resistant frame in an appropriate state, the above-mentioned advantages of using a ceramic Glock as the radiator can be achieved. It can easily meet the demand for large-area radiators.
・ｉｌ４１図は本発明の方法全実施するカロ熱炉の一例
のｉｌ、ｌＴ曲図、第２図は本発明の方法に使用する輻
射体の実施例の断面図、第３図及び第４図は不発明の輻
射体の実施例の一部省略した平面図及び第６図における
Ａ−Ａ線矢視断１角１凶である。
１・・・バーナ口、２・・・加熱室、６・・・被加熱物
、４・・・排ガス通路、５・・・・・二カッ、状セラミ
ックブロック（輻射体）、５Ａ・・・貫通孔、６・・・
輻射体、６Ａ・・・枠体。
才／）３￥Ｉ
才２）１・Figure il41 is an il and lT curve diagram of an example of a Calothermal furnace in which the entire method of the present invention is carried out, Figure 2 is a sectional view of an example of a radiator used in the method of the present invention, Figures 3 and 4 6 is a partly omitted plan view of an embodiment of an uninvented radiator and a cross section taken along the line A--A in FIG. DESCRIPTION OF SYMBOLS 1...Burner port, 2...Heating chamber, 6...Heated object, 4...Exhaust gas passage, 5...2-shaped ceramic block (radiator), 5A... Through hole, 6...
Radiator, 6A...frame body. age/)3￥I age2)1
Claims (1)
貫通孔ヲ有するセラミックブロック金、該貫通孔をガス
流路に傾けて、被刀口熱物に向けて配置して行うことを
特徴とする輻射加熱方法。 （２） 前記セラミックブロックの貫通孔の径が１〜
２００間で、該ブロックの孔の貫通方向の厚さが核化の
径の２倍以上である特許請求の範囲第１項の輻射加熱方
法。 （３） 前記セラミックブロックを、該セラミックブ
ロックの貫通孔がガス流路に対して５〜２０度傾むくよ
うに配置して行う特許請求の範囲第１項又は第２項の輻
射加熱方法。 （４）１個又は榎数個の開口部を呵する耐熱性枠体の開
口部に、多数の平行な貫通孔を有するセラミックブロッ
クを、該貫通孔を枠体面に頌けて、嵌装してなる輻射体
。 （５）前記セラミックブロックの貫通孔の径が１〜２０
０ ｍｍで、該ブロックの孔の貫通方向の厚さが核化の
径の２倍以上である特ｒ（： ％７４求の範囲第４川の
輻射体。 （６） 前記セラミックブロック葡、該セラミックブ
ロックの貫通孔が枠体面に直角より５〜２０度傾むくよ
う（で嵌装してなる特許請求の範囲第４項又は第５項の
輻射体。 （７） 前記耐熱性枠体に開口部が複数個設けられ、
各開］］部しこ２個の前記セラミックブロック金、該枠
体両側面の中間面に対称に、嵌装しである特許請求の範
囲第６項の輻射体。[Claims] (Ceramic block gold having a large number of parallel through-holes in the high-temperature gas flow path in the 1,1tJo thermal chamber, with the through-holes being arranged at an angle to the gas flow path and facing the hot object to be heated. A radiation heating method characterized in that the diameter of the through hole of the ceramic block is 1 to 1.
2. The radiant heating method according to claim 1, wherein the thickness of the hole in the block in the penetrating direction is at least twice the diameter of the nucleation. (3) The radiation heating method according to claim 1 or 2, wherein the ceramic block is arranged such that the through hole of the ceramic block is inclined at 5 to 20 degrees with respect to the gas flow path. (4) A ceramic block having a large number of parallel through-holes is inserted into the opening of a heat-resistant frame that has one or several openings, with the through-holes arranged on the frame surface. A radiant body. (5) The diameter of the through hole of the ceramic block is 1 to 20
0 mm, and the thickness of the hole in the block in the penetrating direction is at least twice the diameter of the nucleation. The radiator according to claim 4 or 5, wherein the through hole of the ceramic block is fitted so that the through hole is inclined 5 to 20 degrees from the right angle to the frame surface. (7) An opening is formed in the heat resistant frame. Multiple sections are provided,
7. The radiator according to claim 6, wherein the two ceramic blocks are fitted symmetrically to the intermediate plane of both sides of the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3573782A JPS58153088A (en) | 1982-03-09 | 1982-03-09 | Radiation heating method and radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3573782A JPS58153088A (en) | 1982-03-09 | 1982-03-09 | Radiation heating method and radiator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58153088A true JPS58153088A (en) | 1983-09-10 |
| JPS6359073B2 JPS6359073B2 (en) | 1988-11-17 |
Family
ID=12450134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3573782A Granted JPS58153088A (en) | 1982-03-09 | 1982-03-09 | Radiation heating method and radiator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58153088A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6363700U (en) * | 1986-10-13 | 1988-04-27 | ||
| JP4801789B1 (en) * | 2010-10-07 | 2011-10-26 | 株式会社超高温材料研究センター | Heating furnace thermal efficiency improvement method and heating furnace thermal efficiency improvement apparatus |
| JP2011231959A (en) * | 2010-04-26 | 2011-11-17 | Japan Ultra-High Temperature Materials Research Center | Air-permeable radiant heat reflector and method for producing the same |
| JP2012247108A (en) * | 2011-05-26 | 2012-12-13 | Japan Ultra-High Temperature Materials Research Center | Thermal efficiency improvement method of heat treatment furnace, and heat treatment furnace |
| JP2014126343A (en) * | 2012-12-27 | 2014-07-07 | Jfe Steel Corp | Heating furnace |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4945239Y1 (en) * | 1969-11-07 | 1974-12-11 | ||
| JPS50133376U (en) * | 1974-04-20 | 1975-11-01 | ||
| JPS54123509A (en) * | 1978-03-20 | 1979-09-25 | Kawasaki Steel Co | Heating furnace |
| JPS5525353A (en) * | 1978-08-11 | 1980-02-23 | Ricoh Co Ltd | Printing means |
-
1982
- 1982-03-09 JP JP3573782A patent/JPS58153088A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4945239Y1 (en) * | 1969-11-07 | 1974-12-11 | ||
| JPS50133376U (en) * | 1974-04-20 | 1975-11-01 | ||
| JPS54123509A (en) * | 1978-03-20 | 1979-09-25 | Kawasaki Steel Co | Heating furnace |
| JPS5525353A (en) * | 1978-08-11 | 1980-02-23 | Ricoh Co Ltd | Printing means |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6363700U (en) * | 1986-10-13 | 1988-04-27 | ||
| JP2011231959A (en) * | 2010-04-26 | 2011-11-17 | Japan Ultra-High Temperature Materials Research Center | Air-permeable radiant heat reflector and method for producing the same |
| JP4801789B1 (en) * | 2010-10-07 | 2011-10-26 | 株式会社超高温材料研究センター | Heating furnace thermal efficiency improvement method and heating furnace thermal efficiency improvement apparatus |
| WO2012046515A1 (en) * | 2010-10-07 | 2012-04-12 | 株式会社超高温材料研究センター | Thermal efficiency improvement method for heating furnace and thermal efficiency improvement device for heating furnace |
| CN103201579A (en) * | 2010-10-07 | 2013-07-10 | 宇部兴产株式会社 | Thermal efficiency improvement method for heating furnace and thermal efficiency improvement device for heating furnace |
| JP2012247108A (en) * | 2011-05-26 | 2012-12-13 | Japan Ultra-High Temperature Materials Research Center | Thermal efficiency improvement method of heat treatment furnace, and heat treatment furnace |
| JP2014126343A (en) * | 2012-12-27 | 2014-07-07 | Jfe Steel Corp | Heating furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6359073B2 (en) | 1988-11-17 |
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