JPH08233251A - Combustion device - Google Patents

Combustion device

Info

Publication number
JPH08233251A
JPH08233251A JP8020127A JP2012796A JPH08233251A JP H08233251 A JPH08233251 A JP H08233251A JP 8020127 A JP8020127 A JP 8020127A JP 2012796 A JP2012796 A JP 2012796A JP H08233251 A JPH08233251 A JP H08233251A
Authority
JP
Japan
Prior art keywords
air
heat exchange
combustion
exchange member
exhaust gas
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.)
Granted
Application number
JP8020127A
Other languages
Japanese (ja)
Other versions
JP2933868B2 (en
Inventor
Yasuo Hirose
靖夫 広瀬
Takeshi Miyagawa
武 宮川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FURNESS TECHNO KK
Chiyoda Corp
Chiyoda Chemical Engineering and Construction Co Ltd
Original Assignee
FURNESS TECHNO KK
Chiyoda Corp
Chiyoda Chemical Engineering and Construction Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by FURNESS TECHNO KK, Chiyoda Corp, Chiyoda Chemical Engineering and Construction Co Ltd filed Critical FURNESS TECHNO KK
Priority to JP8020127A priority Critical patent/JP2933868B2/en
Publication of JPH08233251A publication Critical patent/JPH08233251A/en
Application granted granted Critical
Publication of JP2933868B2 publication Critical patent/JP2933868B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Landscapes

  • Combustion Of Fluid Fuel (AREA)
  • Gas Burners (AREA)
  • Air Supply (AREA)

Abstract

PURPOSE: To provide a combustion device which can raise the pre-heating temperature of combustion air to a specified temperature without fail, does not wastefully discharge an exhaust gas, has a simple constitution, can be made larger, of which the energy saving effect and safety are high, and of which the life is long. CONSTITUTION: Combustion air is fed into a heat-exchanging member 27 from an air duct 24, through a cylindrical body 32 wherein the inside is equally partitioned with partition walls and a plurality of small passages are formed in the peripheral direction. The heat-exchanging member 27 intermittently rotates an opening at the tip of an air nozzle 31, with one small passage of the cylindrical body 32 as one unit.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】本発明は、燃焼装置本体内で
燃焼した後の排気ガスの熱を回収し、燃焼空気と燃焼ガ
スの予熱に使用するようにした燃焼装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combustion device for recovering the heat of exhaust gas after combustion in the main body of the combustion device and using it for preheating combustion air and combustion gas.

【０００２】[0002]

【従来の技術】加熱炉、鍛造炉、焼準炉、調質炉などの
工業用炉とか、タービンの蒸気発生用加熱装置等に使用
されている燃焼装置には、省エネルギを図る上から、燃
焼した後の排気ガスの熱を利用して燃焼空気を加熱する
ようにした燃焼装置がある。2. Description of the Related Art In order to save energy, an industrial furnace such as a heating furnace, a forging furnace, a normalizing furnace, and a refining furnace, or a combustion device used for a heating device for steam generation of a turbine, There is a combustion device that heats combustion air by utilizing heat of exhaust gas after combustion.

【０００３】この種の燃焼装置に使用されるレキュペレ
ータは、一般的に、相互に近接して設けられた排気ガス
ラインと燃焼空気ラインとの間に所定の熱交換器を配
し、この両ライン内を流れる空気と排気ガスとの間で熱
交換させ、燃焼した後の排気ガスの熱を利用して燃焼空
気を加熱するようにしたものである。このレキュペレー
タの使用により回収される熱は、温度レベルでみれば、
約５０％程度であり、前記工業炉では、１２００℃の排
気ガスを利用する場合で熱交換した後の燃焼空気は６０
０℃程度になるものとされている。A recuperator used in this type of combustion apparatus generally has a predetermined heat exchanger arranged between an exhaust gas line and a combustion air line which are provided close to each other, and both lines are provided. Heat is exchanged between the air flowing inside and the exhaust gas, and the heat of the exhaust gas after combustion is used to heat the combustion air. The heat recovered by the use of this recuperator is
It is about 50%, and in the industrial furnace, combustion air after heat exchange is 60 when exhaust gas at 1200 ° C. is used.
It is said to be about 0 ° C.

【０００４】かかるレペキュレータは、その構成材料の
みでなくスペース的にも著じるしい制限を受け、時には
炉とか加熱装置等の本体よりも大きな場所となることも
ある。そこで、本件出願人は、燃焼装置本体の側壁に熱
交換部材を取付け、この熱交換部材を空気通路に対し回
転させるようにした燃焼装置（特開平１−２２２，１０
２号）あるいは燃焼空気供給用の空気通路を前記熱交換
部材に対し回転させるようにした燃焼装置（実願平３−
５９，４３４号）を最近提案した。Such a repeculator is severely limited not only in its constituent material but also in space, and sometimes it is larger than the main body such as a furnace or a heating device. Therefore, the applicant of the present invention installed a heat exchange member on the side wall of the main body of the combustion device and rotated the heat exchange member with respect to the air passage (Japanese Patent Laid-Open No. 1-222,10).
No. 2) or a combustion device in which an air passage for supplying combustion air is rotated with respect to the heat exchange member.
59,434) was recently proposed.

【０００５】前記熱交換部材回転式の燃焼装置１０Ａ
は、図６に略示するように、燃焼装置本体１１内の被加
熱物Ｗを加熱するバーナー１２を有し、このバーナー１
２近傍の側壁に、外形が円筒状で内部がハニカム状に仕
切られた通気性のあるセラミックス製の熱交換部材１３
を設け、燃焼装置本体１１内の高温の排気ガスを排気ガ
ス通路１４より外部に排出するときにその熱を熱交換部
材１３に蓄え、この蓄えた熱により空気通路１５から熱
交換部材１３内を通って流入する燃焼空気を加熱するよ
うにしたものである。そして、熱交換部材１３を回転軸
１５を介してモータＭにより回転させることにより、燃
焼空気への熱供給を継続して行なうようにしている。The heat exchange member rotary type combustion apparatus 10A
As shown in FIG. 6, the burner 1 has a burner 12 for heating an object W to be heated in the main body 11.
A heat exchange member 13 made of air-permeable ceramics, which has a cylindrical outer shape and is partitioned into a honeycomb shape on the side wall near 2
Is provided to store the heat in the heat exchange member 13 when the high-temperature exhaust gas in the combustion apparatus main body 11 is discharged to the outside from the exhaust gas passage 14, and the stored heat causes the inside of the heat exchange member 13 to flow from the air passage 15 to the inside. The combustion air flowing in through is heated. Then, the heat exchanging member 13 is rotated by the motor M via the rotary shaft 15, so that heat is continuously supplied to the combustion air.

【０００６】一方、空気通路回転式の燃焼装置１０Ｂ
は、図７に略示するように、燃焼装置本体１１の側壁
に、外形が円筒状で内部がハニカム状に仕切られた通気
性のあるセラミックス製の熱交換部材１３を設け、この
熱交換部材１３の中心を挿通するように、被加熱物Ｗを
加熱するバーナー１２を設け、燃焼装置本体１１内の高
温の排気ガスを排気ガス通路１４より戸外に排出すると
きに熱交換部材１３中を通るようにし、この排気ガスの
熱を熱交換部材１３に蓄え、この蓄えた熱によって空気
通路１５から熱交換部材１３中を通って供給される燃焼
空気を加熱するようにしたものである。そして、この空
気通路１５を回転手段１７により回転させることによ
り、燃焼空気への熱供給を継続して行なうようにしてい
る。On the other hand, an air passage rotating type combustion device 10B
As shown in FIG. 7, a heat exchange member 13 made of air-permeable ceramics having a cylindrical outer shape and a honeycomb shape inside is provided on the side wall of the combustion device body 11. A burner 12 for heating the object to be heated W is provided so as to pass through the center of the heating target W, and passes through the heat exchanging member 13 when the hot exhaust gas in the combustion device body 11 is discharged to the outside through the exhaust gas passage 14. In this way, the heat of the exhaust gas is stored in the heat exchange member 13, and the stored heat heats the combustion air supplied from the air passage 15 through the heat exchange member 13. Then, by rotating the air passage 15 by the rotating means 17, heat is continuously supplied to the combustion air.

【０００７】[0007]

【発明が解決しようとする課題】ところが、これら燃焼
装置１０Ａ，１０Ｂは、図８に示すように、熱交換部材
１３中において、空気通路１４から送られてきた空気が
流通するゾーンＺa （以下、空気ゾーン）と、燃焼装置
本体１１側から流出する排気ガスが流通するゾーンＺe
（以下、排気ガスゾーン）との断面積の比率は考慮され
ていないので、例えば、空気ゾーンＺa が排気ガスゾー
ンＺe より大きいときには、空気が流通することにより
冷却された熱交換部材中のあるゾーンが、次に流通する
排気ガスによって所定の温度上昇される前に空気が再度
流入することになり、この空気が所定の温度まで上昇し
ないという虞もある。また、逆に、空気ゾーンＺa が排
気ガスゾーンＺe より小さいときには、空気の予熱は十
分であるが、排気ガスゾーンＺe を多量の排気ガスが流
通することにより、熱を無駄に排出することになる。ま
た、ハニカム状の多数の通路が形成された熱交換部材１
３では、各通路は一端から他端まで直線的に形成されて
いるが、この熱交換部材１３の端面に対向して設けられ
た空気通路１５側の空気ノズル１８と熱交換部材１３永
久単に相対的に回転させると、熱交換部材１３中のある
通路においては、燃焼空気と排気ガスが熱交換部材１３
中で衝突し、回転速度によっては熱交換部材１３の燃焼
装置本体側と空気通路側との間で温度勾配が生じること
になるので、熱交換部材１３を大型化し燃焼空気及び排
気ガスが多量に流通させ燃焼能力の高いものを得ること
は難しく、また熱交換部材１３の長寿命化も難しいとい
う欠点がある。However, as shown in FIG. 8, in these combustion devices 10A and 10B, in the heat exchange member 13, a zone Za (hereinafter, referred to as "Za" in which the air sent from the air passage 14 flows). Air zone) and a zone Ze in which exhaust gas flowing out from the combustion apparatus main body 11 side flows
Since the ratio of the cross-sectional area to (hereinafter, exhaust gas zone) is not taken into consideration, for example, when the air zone Za is larger than the exhaust gas zone Ze, a certain zone in the heat exchange member cooled by the air circulation. However, air may flow in again before the temperature rises to a predetermined temperature by the exhaust gas flowing next, and this air may not rise to a predetermined temperature. On the contrary, when the air zone Za is smaller than the exhaust gas zone Ze, the air is sufficiently preheated, but a large amount of exhaust gas flows through the exhaust gas zone Ze, so that heat is wastefully discharged. . Further, the heat exchange member 1 having a large number of honeycomb-shaped passages formed therein.
In FIG. 3, each passage is linearly formed from one end to the other end, but the air nozzle 18 on the side of the air passage 15 provided facing the end face of the heat exchange member 13 and the heat exchange member 13 are simply opposed to each other. When the heat exchange member 13 is rotated, the combustion air and the exhaust gas pass through the passage in the heat exchange member 13.
Since a temperature gradient occurs between the combustion device main body side of the heat exchange member 13 and the air passage side depending on the rotation speed, the heat exchange member 13 is enlarged and a large amount of combustion air and exhaust gas are generated. There are drawbacks that it is difficult to circulate and obtain a material having high combustion ability, and it is difficult to extend the life of the heat exchange member 13.

【０００８】本発明は、上述した従来技術に伴う課題を
解決するためになされたもので、燃焼空気の予熱を確実
に所定の温度まで上昇させることができ、無駄に排気ガ
スを排出することもなく、構成が簡単で、大型化が可能
で、省エネ効果及び安全性が高く、寿命の長い燃焼装置
を提供することを目的とする。The present invention has been made in order to solve the problems associated with the above-mentioned prior art, and it is possible to reliably raise the preheat of combustion air to a predetermined temperature, and exhaust exhaust gas in vain. It is an object of the present invention to provide a combustion device having a simple structure, a large size, a high energy saving effect, high safety, and a long life.

【０００９】[0009]

【課題を解決するための手段】かかる目的を達成する本
発明は、燃焼装置本体に取付けられたバーナーと、燃焼
空気が流通する空気通路が形成された空気ダクトと、燃
焼した後の排気ガスを燃料装置本体外に排出する排出ガ
ス通路が内部に形成された排気ダクトと、前記排気ガス
及び燃焼空気が内部を流通するセラミックス製の熱交換
部材と、この熱交換部材と該熱交換部材に対向して設け
られた前記空気ダクトの先端に設けられた空気ノズル
と、前記空気ダクトと熱交換部材とを相対的に回転させ
る回転手段とを有する燃焼装置において、前記熱交換部
材の外端面と前記空気ノズルとの間に、内部が仕切壁に
より等分に仕切られ周方向に複数個の小通路が形成され
た円筒体を位置固定に設け、前記空気ノズルの先端開口
部を円筒体の１つの小通路あるいは１つおきの小通路の
形状と対応するように形成し、前記回転手段により前記
空気ダクト又は熱交換部材のいずれか一方を、前記１つ
の小通路分を１単位として間歇的に回動若しくは移動さ
せるようにしたことを特徴とする燃焼装置である。SUMMARY OF THE INVENTION The present invention which achieves the above object is directed to a burner attached to a main body of a combustion apparatus, an air duct having an air passage through which combustion air flows, and an exhaust gas after combustion. An exhaust duct in which an exhaust gas passage for discharging to the outside of the fuel device main body is formed, a heat exchange member made of ceramics through which the exhaust gas and the combustion air flow, and the heat exchange member and the heat exchange member facing each other. In a combustion device having an air nozzle provided at the tip of the air duct and a rotating means for relatively rotating the air duct and the heat exchange member, an outer end surface of the heat exchange member and the A cylindrical body, which is divided into equal parts by a partition wall and has a plurality of small passages in the circumferential direction, is fixedly provided between the air nozzle and the air nozzle, and the tip end opening of the air nozzle is provided in one of the cylindrical bodies. It is formed so as to correspond to the shape of a passage or every other small passage, and either the air duct or the heat exchange member is intermittently rotated by the rotating means with the one small passage as one unit. Alternatively, the combustion device is characterized by being moved.

【００１０】前記回転手段による回転は、間歇的に同一
方向に回動させたり、正転と逆転を繰返すようにしても
よい。The rotation by the rotating means may be intermittently rotated in the same direction, or may be repeated forward and reverse.

【００１１】前記熱交換部材は、前記円筒体の仕切壁と
同数だけ仕切板により区画することが好ましく、前記バ
ーナーは、中央にモーティブ空気を供給する空気パイプ
を有することが好ましい。It is preferable that the heat exchanging member is partitioned by the same number of partition plates as the partition walls of the cylindrical body, and the burner preferably has an air pipe for supplying motive air in the center.

【００１２】このようにすれば、空気ゾーンと排気ガス
ゾーンが等しい大きさとなるので、加熱された熱交換部
材中を、燃焼空気が流通することによって冷却される部
分と、燃焼による輻射熱や、排気ガス通路を流通する高
温の排気ガスとにより所定の温度上昇される部分が熱交
換部材全域に亘って等分に存在し、排気ガスを不必要に
排出することなく燃焼空気を所定温度まで上昇させるこ
とができ、しかもその温度管理も容易となる。With this configuration, the air zone and the exhaust gas zone have the same size, so that the portion of the heated heat exchange member that is cooled by the flow of combustion air, the radiant heat from combustion, and the exhaust gas There is a portion where the temperature is raised to a predetermined temperature by the high temperature exhaust gas flowing through the gas passages equally over the entire heat exchange member, and the combustion air is raised to a predetermined temperature without unnecessarily discharging the exhaust gas. The temperature can be easily controlled.

【００１３】また、熱交換部材中を流れる燃焼空気及び
排気ガスの流れが短時間の間に切り換るるので、熱交換
部材の燃焼装置本体と空気通路側とで温度勾配を生じる
ことが少なくなり、熱交換部材の大型化、長寿命化を達
成でき、この結果、燃焼能力の高いものを得ることがで
きる。しかも、熱交換部材を燃焼装置本体に固定した状
態としたものでは、比較的大型のものを形成しても問題
はなく、燃焼能力の高いものが簡単な構成で得ることが
できる。この熱交換部材を円筒体の仕切壁と同数だけ仕
切板により区画すれば、セラミックス製の熱交換部材を
補強でき、強度的に優れたものとなるのみでなく、空気
ノズルから中間の円筒体を通って熱交換部材に至る通路
が確実に形成されるので、燃焼空気を送風するときの圧
損が少なくなり、小さなブロアを用いても円滑に作動さ
せることができる。Further, since the flow of combustion air and exhaust gas flowing through the heat exchange member is switched in a short time, a temperature gradient is less likely to occur between the main body of the heat exchange member and the air passage side. In addition, the heat exchange member can be made larger and have a longer life, and as a result, one having a high combustion capacity can be obtained. Moreover, in the case where the heat exchange member is fixed to the main body of the combustion apparatus, there is no problem even if a relatively large one is formed, and a high combustion capacity can be obtained with a simple structure. If this heat exchange member is partitioned by the same number of partition walls as the partition walls of the cylindrical body, the ceramic heat exchange member can be reinforced and not only becomes excellent in strength, but also the intermediate cylindrical body from the air nozzle can be removed. Since the passage through which the heat exchange member is formed is surely formed, the pressure loss at the time of blowing the combustion air is reduced, and it is possible to smoothly operate even if a small blower is used.

【００１４】加えて、燃料パイプ中の空気パイプにモー
ティブ空気を供給すれば、バーナーから放射される火炎
の大小あるいはシャープさなどの調節することができ、
火炎のフレキシビリティが増大し、制御性あるいは汎用
性の幅も大きいものとなる。In addition, by supplying motive air to the air pipe in the fuel pipe, the size or sharpness of the flame emitted from the burner can be adjusted,
The flexibility of the flame is increased, and the controllability or versatility is widened.

【００１５】[0015]

【発明の実施の形態】以下、図面を参照して本発明の一
実施例を説明する。BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.

【００１６】図１は、本発明の一実施例に係る燃焼装置
の概略断面図、図２は、図１の２−２線に沿う断面図、
図３は、図１の３−３線に沿う断面図である。FIG. 1 is a schematic sectional view of a combustion apparatus according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line 2-2 of FIG.
FIG. 3 is a sectional view taken along the line 3-3 of FIG.

【００１７】図１において、燃焼装置２０は、例えば、
耐火レンガ等の耐火材よりなる燃焼装置本体２１の下部
に取付けられ、燃焼装置本体２１内の被加熱物を加熱す
る熱源として使用される。In FIG. 1, the combustion device 20 is, for example,
It is attached to the lower part of the combustion device main body 21 made of a refractory material such as refractory bricks and is used as a heat source for heating an object to be heated in the combustion device main body 21.

【００１８】この燃焼装置２０は、燃焼装置本体２１内
に設けられた被加熱物を加熱するバーナー２２と、燃焼
した後の排気ガスを燃焼装置本体２１外に排出する排気
ガス通路２５が内部に形成された排気ダクト２６と、こ
の排気ダクト２６内に挿通して設けられ、内部に燃焼空
気が流通する空気通路２３が形成された空気ダクト２４
と、排気ガス及び燃焼空気が内部を流通するセラミック
ス製のハニカム状をした通気性のある蓄熱体である熱交
換部材２７と、この熱交換部材２７に対向して設けられ
た前記空気ダクト２４を回転させる回転手段Ｄとを有す
る。The combustion device 20 has a burner 22 for heating an object to be heated, which is provided in the combustion device main body 21, and an exhaust gas passage 25 for discharging exhaust gas after combustion outside the combustion device main body 21. An air duct 24 having a formed exhaust duct 26 and an air passage 23 formed by being inserted into the exhaust duct 26 and through which combustion air flows.
A heat exchange member 27, which is a honeycomb-shaped air-permeable heat storage body made of ceramics, through which exhaust gas and combustion air flow, and the air duct 24 provided so as to face the heat exchange member 27. And a rotating means D for rotating.

【００１９】前記バーナー２２は、熱交換部材２７及び
空気ダクト２６の軸心を挿通して設けられ、その内端は
燃焼装置本体２１内に略臨むようにされ、外端は燃料ガ
スが導入される入口２８が設けられ、さらにバーナー２
２の中心部分には軸方向に沿ってモーティブ空気が流通
する空気パイプ２９（図では、図四の都合上１本の線で
示す）が設けられている。この空気パイプ２９は、該空
気パイブ２９から放出されるモーティブ空気の量を調節
することになり、バーナー２２から放射される火炎の大
小あるいはシャープさなどを調節するものである。この
モーティブ空気の量は、例えば、図４に示すように、理
論空気量の火炎のシャープ性と熱損失との関係で、２〜
５％程度が適当である。このモーティブ空気の調節によ
り、火炎のフレキシビリティ、制御性あるいは汎用性の
幅を大きなものとすることができる。また、前記バーナ
ー２２は、通常のガスバーナーであるが、場合によって
は油バーナー等を使用してもよい。このバーナー２２の
先端部分は、前記熱交換部材２７を通って空気通路２３
からの燃焼空気がバーナー２２からの火炎を囲んで噴出
するように構成されているので、バーナー２２からの火
炎は、燃焼空気により不必要に上方に変位するのが防止
されることになる。なお、図１中、符号「Ｇ」は、熱交
換部材２７の口縁部に設けられたガスケットＧである。The burner 22 is provided so as to pass through the heat exchange member 27 and the axial center of the air duct 26, the inner end of the burner 22 substantially faces the inside of the main body 21 of the combustion apparatus, and the outer end of the burner 22 is introduced with fuel gas. Entrance 28 is provided, and the burner 2
An air pipe 29 (indicated by a single line in the figure for convenience of FIG. 4) through which motive air circulates is provided in the central portion of 2. The air pipe 29 adjusts the amount of motive air discharged from the air pipe 29, and adjusts the size or sharpness of the flame emitted from the burner 22. The amount of this motive air is, for example, as shown in FIG. 4, in the range between 2 and the theoretical sharpness of the flame sharpness and heat loss.
About 5% is suitable. By adjusting the motive air, flame flexibility, controllability, or versatility can be widened. The burner 22 is a normal gas burner, but an oil burner or the like may be used depending on the case. The tip portion of the burner 22 passes through the heat exchange member 27 and the air passage 23.
Since the combustion air from the burner 22 is configured to be ejected so as to surround the flame from the burner 22, the flame from the burner 22 is prevented from being unnecessarily displaced upward by the combustion air. In FIG. 1, reference numeral “G” is a gasket G provided at the edge of the heat exchange member 27.

【００２０】排気ダクト２６は、その基端部分が燃焼装
置本体２１の外側壁に取付けられ、その外方端側は耐火
材よりなる仕切壁３０により区画され、この仕切壁３０
が内部の空気ダクト２４を軸受Ｊとシール部材Ｓとによ
り支持している。The exhaust duct 26 has its base end portion attached to the outer wall of the combustion apparatus main body 21, and its outer end side is partitioned by a partition wall 30 made of a refractory material.
Supports the internal air duct 24 with a bearing J and a seal member S.

【００２１】前記熱交換部材２７の外端面と、前記空気
ダクト２４の先端に設けられた空気ノズル３１との間に
は、円筒体３２が設けられている。この円筒体２９は、
図２に湿すように、内部が仕切壁３３により周方向に等
分に６つの小通路ｐに仕切られ、燃焼装置本体２１の外
側に位置固定に取付けられている。一方前記空気ノズル
３１は、図３に示すように、円筒体３２の１つおきの小
通路ｐと対向するように設けられた先端開口部３１ａが
形成され、前記回転手段Ｄにより空気ダクト２４を熱交
換部材２７に対し、前記円筒体２９の１つの小通路ｐを
１単位として間歇的に回転するようにしている。回転手
段Ｄによる回転は、空気ダクト２４又は熱交換部材２７
のいずれか一方を少なくとも１つの小通路ｐを１単位と
して間歇的に行なう。ただし、この回転は、空気ダクト
２４又は熱交換部材２７のいずれか一方を間歇的に同一
方向に回動したり、あるいは正転と逆転を繰返すように
してもよい。A cylindrical body 32 is provided between the outer end surface of the heat exchange member 27 and the air nozzle 31 provided at the tip of the air duct 24. This cylindrical body 29 is
As shown in FIG. 2, the interior is partitioned into six small passages p by a partition wall 33 in the circumferential direction, and the small passages p are fixedly attached to the outside of the main body 21 of the combustion apparatus. On the other hand, as shown in FIG. 3, the air nozzle 31 is provided with a tip opening 31a provided so as to face every other small passage p of the cylindrical body 32, and the air duct 24 is moved by the rotating means D. With respect to the heat exchange member 27, one small passage p of the cylindrical body 29 is intermittently rotated as one unit. The rotation by the rotating means D is performed by the air duct 24 or the heat exchange member 27.
Either one of them is intermittently performed with at least one small passage p as one unit. However, in this rotation, either one of the air duct 24 and the heat exchange member 27 may be intermittently rotated in the same direction, or forward rotation and reverse rotation may be repeated.

【００２２】特に、この熱交換部材２７を、図５に示す
ように、円筒体３２の仕切壁３３と同数だけ仕切板３４
により区画すれば、この仕切板３４によりセラミックス
製の熱交換部材２７を補強することができ、強度的に優
れたものとなる。しかも、この仕切板３４と円筒体３２
が合致すれば、空気ノズル３１から中間の円筒体３２を
通って熱交換部材２７に至る通路が確実に形成されるこ
とになるので、燃焼空気を送風するときの圧損が少なく
なり、小さなブロアを用いても円滑に作動させることが
できる。In particular, as shown in FIG. 5, as many heat exchanging members 27 as partition plates 34 as the number of partition walls 33 of the cylindrical body 32.
The partition plate 34 can reinforce the heat exchange member 27 made of ceramics and is excellent in strength. Moreover, the partition plate 34 and the cylindrical body 32
, The passage from the air nozzle 31 to the heat exchange member 27 through the intermediate cylindrical body 32 is surely formed, so that the pressure loss when blowing the combustion air is reduced and a small blower is generated. Even if it is used, it can be operated smoothly.

【００２３】なお、この回転手段Ｄは、空気ダクト２４
の外周に固着されたスプロケット３５を有し、このスプ
ロケット３５とモータＭにより回転される駆動歯車３６
とをチェーン３７を介して連結したものである。The rotating means D is composed of the air duct 24.
Has a sprocket 35 fixed to the outer periphery of the drive gear 36 rotated by the sprocket 35 and the motor M.
And are connected via a chain 37.

【００２４】次に本実施例の作用を説明する。Next, the operation of this embodiment will be described.

【００２５】この燃焼装置２０を、例えば、鍛造炉等の
燃焼装置本体２１に取付け、モータＭを回転しつつバー
ナー２２に着火し、ブロアにより燃焼空気を送風する。The combustion device 20 is attached to a combustion device body 21 such as a forging furnace, the motor M is rotated to ignite the burner 22, and the blower blows combustion air.

【００２６】バーナー２２より噴射された火炎は、空気
通路３３を通って流れてきた燃焼空気により酸素補給を
受けて鋭く高温の火炎となって、例えば鋳塊等の被加熱
物に向って伸びる。そして、鍛造炉内の温度は次第に上
昇し、所定時間が経過すると鍛造炉内の鋳塊は加熱され
軟化する。The flame injected from the burner 22 is supplemented with oxygen by the combustion air flowing through the air passage 33 to become a sharp high-temperature flame, which spreads toward a heated object such as an ingot. Then, the temperature in the forging furnace gradually rises, and after a lapse of a predetermined time, the ingot in the forging furnace is heated and softened.

【００２７】この場合、燃焼本体装置２１内の排気ガス
は、熱交換部材２７に通って排気ガス通路２５より外部
に流出することになるが、この熱交換部材２７は、燃焼
による輻射熱や、高温の排気ガスにより加熱され、その
熱が内部に蓄積され高温となっている。ここを空気通路
３３から吐出された空気が通過すると、加熱されて高温
の燃焼空気となるが、この加熱は、燃焼装置本体２１か
ら吐出された直後の排気ガスの熱を利用して直ちに燃焼
空気を加熱するという、いわば即時加熱方式となってい
るので、加熱時に熱のロスがなく、高温の加熱空気を効
率良く作ることができ、この高温の加熱空気によって行
なう燃焼作用もきわめて高温領域で行なわれ、燃焼開始
から所定の高温に達する時間が短時間となる。なお、排
気ガスは熱交換部材２７によって熱をある程度除去され
た後に排気ダクト２５に導かれるので、この燃焼装置は
必ずしも煙突は必要でない。In this case, the exhaust gas inside the combustion main unit 21 will pass through the heat exchange member 27 and flow out to the outside from the exhaust gas passage 25. This heat exchange member 27 causes radiant heat due to combustion and high temperature. It is heated by the exhaust gas and its heat is accumulated inside and becomes high temperature. When the air discharged from the air passage 33 passes through this, it is heated and becomes high-temperature combustion air. This heating uses the heat of the exhaust gas immediately after being discharged from the combustion device main body 21 to immediately burn the combustion air. Since it is a so-called immediate heating system that heats the air, there is no heat loss at the time of heating, it is possible to efficiently produce high temperature heated air, and the combustion action performed by this high temperature heated air is also performed in an extremely high temperature region. Thus, the time required to reach a predetermined high temperature from the start of combustion is short. It should be noted that the exhaust gas is guided to the exhaust duct 25 after the heat is removed to some extent by the heat exchange member 27, so that the combustion device does not necessarily need the chimney.

【００２８】この加熱された熱交換部材２７には、円筒
体２９の１つおきの小通路ｐと対向するように設けられ
た空気ノズル３１の先端開口部３１ａから吐出された燃
焼空気が流入するので、空気ゾーンＺa と排気ガスゾー
ンＺe が等しくなり、燃焼空気によって冷却される部分
と排気ガスによって昇温される部分が熱交換部材２７全
域に亘って等分に存在することになる。したがって、排
気ガスを不必要に排出することなく燃焼空気を所定温度
まで上昇させることができる。しかもこの場合、各ゾー
ンの断面積の大きさにより燃焼空気量、排気ガス量等も
分るので、熱交換部材２７及び燃焼空気の温度管理も容
易となる。Combustion air discharged from a tip opening 31a of an air nozzle 31 provided so as to face every other small passage p of the cylindrical body 29 flows into the heated heat exchange member 27. Therefore, the air zone Za and the exhaust gas zone Ze become equal, and the portion cooled by the combustion air and the portion heated by the exhaust gas are equally distributed over the entire heat exchange member 27. Therefore, the combustion air can be raised to a predetermined temperature without unnecessarily discharging the exhaust gas. Moreover, in this case, the amount of combustion air, the amount of exhaust gas, and the like can be known depending on the size of the cross-sectional area of each zone, so that the temperature control of the heat exchange member 27 and the combustion air becomes easy.

【００２９】また、空気ダクト２４を熱交換部材２７に
対し前記１つの小通路ｐを１単位として間歇的に回転し
ているので、熱交換部材２７中を流れる燃焼空気及び排
気ガスの流れが短時間の間に切り換るので、熱交換部材
２７の燃焼装置本体側と空気通路側とで温度勾配が生じ
ることが少なくなり、熱交換部材２７の大型化、長寿命
化を達成でき、この結果、燃焼能力の高いものを得るこ
とができる。図示実施例のように、熱交換部材２７を燃
焼装置本体２１に固定し回動させないものでは、比較的
大型のものを形成しても問題はなく、燃焼能力の高いも
のが簡単な構成で得ることができる。Further, since the air duct 24 is intermittently rotated with respect to the heat exchange member 27 with the one small passage p as one unit, the flow of combustion air and exhaust gas flowing through the heat exchange member 27 is short. Since the heat exchange member 27 is switched over in a time period, a temperature gradient is less likely to occur between the combustion device main body side and the air passage side of the heat exchange member 27, and the heat exchange member 27 can be made larger and have a longer life. It is possible to obtain a high burning ability. In the case where the heat exchange member 27 is fixed to the combustion device main body 21 and is not rotated as in the illustrated embodiment, there is no problem even if a relatively large size is formed, and a high combustion capacity is obtained with a simple configuration. be able to.

【００３０】特に、仕切板３４により区画した熱交換部
材２７を用いれば、セラミックス製の熱交換部材２７が
補強されるのみでなく、空気ノズル３１から中間の円筒
体３２を通って熱交換部材２７に至る通路が形成され、
燃焼空気を送風するときの圧損が少なく、小さなブロア
を用いることもできる。In particular, if the heat exchange member 27 partitioned by the partition plate 34 is used, not only is the ceramic heat exchange member 27 reinforced, but also the heat exchange member 27 passes from the air nozzle 31 through the intermediate cylindrical body 32. The passage leading to
There is little pressure loss when blowing combustion air, and a small blower can also be used.

【００３１】本発明は、上述した鍛造炉等の炉のみに限
定されるものでなく、他の種々の装置、例えば乾燥装
置、タービンの蒸気発生装置等加熱に関するものなら
ば、種々の装置に対して使用することができる。また、
上述した実施例は、円筒体を仕切壁により６つの小流路
に仕切っているが、本発明は、これのみに限定されるも
のではなく、２つあるいは４つのものでもよく、さらに
多数の空気通路と排気ガス通路とを形成してもよいが、
この場合、空気ノズルを間歇的に回転する単位とその先
端形状等との関係で偶数個とすることが好ましい。さら
に、前記した実施例では、空気ダクトを回転させるよう
にしたものであるが、場合によっては、熱交換部材の側
を回転させるようにしてもよいことはいうまでもない。
前記回転ダクトの中心にモーティブ空気を供給する空気
ダクトを設けたが、このダクトは必ずしも設ける必要は
ない。The present invention is not limited to furnaces such as the above-mentioned forging furnace, but may be applied to various other devices such as a drying device and a steam generating device of a turbine as long as it relates to heating. Can be used. Also,
In the above-mentioned embodiment, the cylindrical body is partitioned into six small flow paths by the partition wall, but the present invention is not limited to this, and it is also possible to use two or four, and a larger number of air passages. The passage and the exhaust gas passage may be formed,
In this case, it is preferable that the number of the air nozzles is an even number due to the relationship between the unit that intermittently rotates and the tip shape thereof. Further, in the above-mentioned embodiment, the air duct is rotated, but it goes without saying that the side of the heat exchange member may be rotated in some cases.
Although an air duct for supplying motive air is provided at the center of the rotary duct, this duct does not necessarily have to be provided.

【００３２】[0032]

【発明の効果】以上述べたように、本発明によれば、空
気ゾーンと排気ガスゾーンが等しく、熱交換部材中での
燃焼空気による冷却部分と排気ガス等による昇温部分が
熱交換部材全域に亘って等分に存在し、排気ガスを不必
要に排出することなく燃焼空気を所定温度まで上昇させ
ることができ、温度管理も容易となる。As described above, according to the present invention, the air zone and the exhaust gas zone are the same, and the cooling portion by the combustion air in the heat exchange member and the temperature rising portion by the exhaust gas etc. are the entire heat exchange member. The combustion air can be raised to a predetermined temperature without unnecessarily discharging the exhaust gas, and the temperature control becomes easy.

【００３３】また、熱交換部材中を流れる燃焼空気及び
排気ガスの流れが短時間の間に切り換るので、熱交換部
材の燃焼装置本体側と空気通路側とで温度勾配が生じる
ことが少なくなり、熱交換部材を大型化長寿命化でき、
燃焼能力の高いものを得ることができる。この熱交換部
材を円筒体の仕切壁と同数だけ仕切板により区画すれ
ば、セラミックス製の熱交換部材を強度的に優れたもの
にすることができ、燃焼空気送風時の圧損が少なく、小
さなブロアを用いることもできる。Further, since the flow of the combustion air and the exhaust gas flowing through the heat exchange member is switched in a short time, a temperature gradient is less likely to occur between the main body of the heat exchange member and the air passage side. The heat exchange member can be made larger and the service life can be extended.
It is possible to obtain the one with a high burning ability. If this heat exchange member is partitioned by the same number of partitions as the number of partition walls of the cylindrical body, the ceramic heat exchange member can be made excellent in strength, the pressure loss when blowing the combustion air is small, and the small blower. Can also be used.

【００３４】加えて、バーナーにモーティブ空気を供給
すれば、バーナーから放射される火炎の大小あるいはシ
ャープさなどの調節することができ、火炎のフレキシビ
リティが増大し、制御性あるいは汎用性の幅も大きなも
のとなる。In addition, by supplying motive air to the burner, the size or sharpness of the flame radiated from the burner can be adjusted, the flexibility of the flame is increased, and the controllability or versatility is widened. It will be big.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の一実施例に係る燃焼装置の概略断面図
である。FIG. 1 is a schematic sectional view of a combustion apparatus according to an embodiment of the present invention.

【図２】図１の２−２線に沿う断面図である。FIG. 2 is a sectional view taken along line 2-2 of FIG.

【図３】図１の３−３線に沿う断面図である。FIG. 3 is a sectional view taken along line 3-3 of FIG.

【図４】モーティブ空気量の制御特性を示す図である。FIG. 4 is a diagram showing a control characteristic of a motive air amount.

【図５】熱交換部材に仕切板を取付けた状態を示す断面
図である。FIG. 5 is a cross-sectional view showing a state in which a partition plate is attached to the heat exchange member.

【図６】従来の燃焼装置を示す概略断面図である。FIG. 6 is a schematic cross-sectional view showing a conventional combustion device.

【図７】従来の他の燃焼装置を示す概略断面図である。FIG. 7 is a schematic cross-sectional view showing another conventional combustion device.

【図８】図７の８−８線に沿う断面図である。8 is a cross-sectional view taken along line 8-8 of FIG.

【符号の説明】[Explanation of symbols]

２１ 燃焼装置本体 ２２ バーナー ２３ 空気通路 ２４ 空気ダクト ２５ 排気ガス通路 ２６ 排気ダクト ２７ 熱交換部材 ２９ 空気パイプ ３１ 空気ノズル ３１ａ 先端開口部 ３２ 円筒体 ３３ 仕切壁 ３４ 仕切板 Ｄ 回転手段 ｐ 小通路 21 Combustion Device Main Body 22 Burner 23 Air Passage 24 Air Duct 25 Exhaust Gas Passage 26 Exhaust Duct 27 Heat Exchange Member 29 Air Pipe 31 Air Nozzle 31a Tip Opening 32 Cylindrical Body 33 Partition Wall 34 Partition Plate D Rotating Means p Small Passage

Claims (5)

【特許請求の範囲】[Claims] 【請求項１】 燃焼装置本体(21)に取付けられたバーナ
ー(22)と、燃焼空気が流通する空気通路(23)が形成され
た空気ダクト(24)と、燃焼した後の排気ガスを燃料装置
本体外に排出する排出ガス通路(25)が内部に形成された
排気ダクト(26)と、前記排気ガス及び燃焼空気が内部を
流通するセラミックス製の熱交換部材(27)と、この熱交
換部材(27)と該熱交換部材(27)に対向して設けられた前
記空気ダクト(24)の先端に設けられた空気ノズル(31)
と、前記空気ダクト(24)と熱交換部材(27)とを相対的に
回転させる回転手段(D) とを有する燃焼装置において、 前記熱交換部材(27)の外端面と前記空気ノズル(31)との
間に、内部が仕切壁(33)により等分に仕切られ周方向に
複数個の小通路(p) が形成された円筒体(32)を位置固定
に設け、前記空気ノズル(31)の先端開口部(31a) を円筒
体(32)の１つの小通路(p) あるいは１つおきの小通路
(p) の形状と対応するように形成し、前記回転手段(D)
により前記空気ダクト(24)又は熱交換部材(27)のいずれ
か一方を少なくとも前記１つの小通路分を単位として間
歇的に回転させるようにしたことを特徴とする燃焼装
置。1. A burner (22) attached to a main body (21) of a combustion device, an air duct (24) having an air passage (23) through which combustion air flows, and an exhaust gas after combustion as fuel. An exhaust duct (26) in which an exhaust gas passage (25) for discharging to the outside of the apparatus main body is formed, a heat exchange member (27) made of ceramics through which the exhaust gas and combustion air flow, and this heat exchange An air nozzle (31) provided at the tip of the member (27) and the air duct (24) provided so as to face the heat exchange member (27).
And a rotation means (D) for relatively rotating the air duct (24) and the heat exchange member (27), the outer end surface of the heat exchange member (27) and the air nozzle (31 Between the inner wall and the inner wall of the air nozzle (31). ) Is a small passage (p) or every other small passage of the cylindrical body (32).
The rotating means (D) is formed so as to correspond to the shape of (p).
Thus, either one of the air duct (24) and the heat exchange member (27) is intermittently rotated in units of at least the one small passage. 【請求項２】 前記回転手段(D) は、前記空気ダクト(2
4)又は熱交換部材(27)のいずれか一方を間歇的に同一方
向に回転させるようにした請求項１に記載の燃焼装置。2. The rotating means (D) includes the air duct (2).
The combustion apparatus according to claim 1, wherein either one of 4) or the heat exchange member (27) is intermittently rotated in the same direction. 【請求項３】 前記回転手段(D) は、前記空気ダクト(2
4)又は熱交換部材(27)のいずれか一方を正転と逆転を繰
返すようにした請求項１に記載の燃焼装置。3. The rotating means (D) includes the air duct (2).
The combustion device according to claim 1, wherein either one of the 4) or the heat exchange member (27) is repeatedly rotated in the forward and reverse directions. 【請求項４】 前記熱交換部材(27)は、前記円筒体(32)
の仕切壁(33)と同数だけ仕切板(34)により区画した請求
項１乃至３に記載の燃焼装置。4. The heat exchange member (27) is the cylindrical body (32).
The combustion device according to claim 1, wherein the partition walls (34) are partitioned by the same number as the partition walls (33). 【請求項５】 前記バーナー(22)は、中央にモーティブ
空気を供給する空気パイプ(29)を有する請求項１乃至４
に記載の燃焼装置。5. The burner (22) has an air pipe (29) for supplying motive air to the center thereof.
The combustion device according to 1.
JP8020127A 1996-02-06 1996-02-06 Combustion equipment Expired - Fee Related JP2933868B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8020127A JP2933868B2 (en) 1996-02-06 1996-02-06 Combustion equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8020127A JP2933868B2 (en) 1996-02-06 1996-02-06 Combustion equipment

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP00742497A Division JP3180044B2 (en) 1997-01-20 1997-01-20 Combustion equipment

Publications (2)

Publication Number Publication Date
JPH08233251A true JPH08233251A (en) 1996-09-10
JP2933868B2 JP2933868B2 (en) 1999-08-16

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ID=12018468

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8020127A Expired - Fee Related JP2933868B2 (en) 1996-02-06 1996-02-06 Combustion equipment

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022079162A (en) * 2020-11-16 2022-05-26 東京窯業株式会社 Regenerative burner device, heat reservoir, and manufacturing method of heat reservoir

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022079162A (en) * 2020-11-16 2022-05-26 東京窯業株式会社 Regenerative burner device, heat reservoir, and manufacturing method of heat reservoir

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