JP5385702B2 - Combustion equipment structure - Google Patents

Combustion equipment structure Download PDF

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JP5385702B2
JP5385702B2 JP2009152889A JP2009152889A JP5385702B2 JP 5385702 B2 JP5385702 B2 JP 5385702B2 JP 2009152889 A JP2009152889 A JP 2009152889A JP 2009152889 A JP2009152889 A JP 2009152889A JP 5385702 B2 JP5385702 B2 JP 5385702B2
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metal sleeve
furnace
ceramic tile
heat storage
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憲泰 木村
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Osaka Gas Co Ltd
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    • 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
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    • 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

Description

本発明は、高温で使用されるバーナの損傷防止、長寿命化を図る技術に関する。   The present invention relates to a technique for preventing damage and extending the life of a burner used at high temperatures.

近年、加熱炉等のバーナでは、より熱効率の高い燃焼方法が求められている。その一環として燃焼排ガスを回収し、燃料及び燃焼用空気の予熱を用いることが検討されている。この種の蓄熱型の燃焼設備では、バーナチューブの近傍に蓄熱体（セラミックル、セラミックボール等）を設置し、それらをセラミックタイルによって抱き込んで炉壁に固定することが多い。即ち、炉内に燃料ガスを供給するガス供給ラインの外径側にガス供給ラインに沿って延びる蓄熱体層を設け、この蓄熱体層のさらに外径側にガス供給ラインに沿って延びるセラミックタイル層を設け蓄熱体層をガス供給ラインの軸方向で位置決めする構成で、セラミックタイル層の外径側にガス供給ラインに沿って延びる金属スリーブを設け、炉壁に穿たれたバーナ取付け孔に金属スリーブを介して、バーナを取付ける燃焼設備構造が提案されている。この種の燃焼設備構造は、例えば特許文献１に開示されている。   In recent years, combustion methods with higher thermal efficiency have been demanded for burners such as heating furnaces. As part of this, it has been studied to collect combustion exhaust gas and use preheating of fuel and combustion air. In this type of heat storage type combustion equipment, a heat storage body (ceramic, ceramic ball, etc.) is often installed in the vicinity of the burner tube, and these are held by ceramic tiles and fixed to the furnace wall. In other words, a heat storage layer extending along the gas supply line is provided on the outer diameter side of the gas supply line for supplying fuel gas into the furnace, and the ceramic tile extending along the gas supply line on the outer diameter side of the heat storage layer. The thermal storage layer is positioned in the axial direction of the gas supply line by providing a layer, and a metal sleeve extending along the gas supply line is provided on the outer diameter side of the ceramic tile layer, and metal is installed in the burner mounting hole drilled in the furnace wall. A combustion equipment structure for attaching a burner via a sleeve has been proposed. This type of combustion equipment structure is disclosed in Patent Document 1, for example.

特許文献１に開示の技術は、バーナ全体が炉壁から引退した構造のものであるが、本願明細書の図２に示される例にあるように、金属スリーブの長さを炉壁の厚みに合わせ、セラミックタイルの先端が炉内に突出した構造が採用されることもある。
図２に示す燃焼設備構造では、炉内に燃料ガスｇ１を供給するガス供給ライン２の外径側にガス供給ライン２に沿って延びる蓄熱体層８を設け、この蓄熱体層８の外径側にガス供給ライン２に沿って延びるセラミックタイル層９を設け、セラミックタイル層９の外径側にガス供給ライン２に沿って延びる金属スリーブ１０を設け、炉壁５に穿たれたバーナ取付け孔１１に金属スリーブ１０が取り付けられている。
この構成の燃焼設備構造では、セラミックタイル層で蓄熱体層を抱き込むとともに炉室に対してバーナを位置決めして、蓄熱効果を得ながら燃焼を良好に行うことができる。 The technique disclosed in Patent Document 1 has a structure in which the entire burner is retracted from the furnace wall. As shown in the example shown in FIG. 2 of the present specification, the length of the metal sleeve is set to the thickness of the furnace wall. In addition, a structure in which the tip of the ceramic tile protrudes into the furnace may be employed.
In the combustion equipment structure shown in FIG. 2, a heat storage layer 8 extending along the gas supply line 2 is provided on the outer diameter side of the gas supply line 2 for supplying the fuel gas g1 into the furnace, and the outer diameter of the heat storage layer 8 is provided. A ceramic tile layer 9 extending along the gas supply line 2 is provided on the side, a metal sleeve 10 extending along the gas supply line 2 is provided on the outer diameter side of the ceramic tile layer 9, and a burner mounting hole formed in the furnace wall 5 A metal sleeve 10 is attached to 11.
In the combustion equipment structure having this configuration, the heat storage layer can be embraced by the ceramic tile layer and the burner can be positioned with respect to the furnace chamber, so that combustion can be performed satisfactorily while obtaining the heat storage effect.

特開２００８−２３２５３７号公報JP 2008-232537 A

上記の図２に示すような構造を採用する場合、セラミックタイル層を成すセラミックタイルには数十キログラムの重量がかかるため、高強度で高コストであるファインセラミック等を使用することは現実的でない。従って、廉価なコージェライト、ムライト系耐火物がセラミックタイル層を構成する材料とされるのが殆どである。コージェライト、ムライト系耐火物は、強度が低く、使用中に割れが発生することがあり、最悪の場合、タイルごと脱落することがある。   When the structure as shown in FIG. 2 is adopted, the ceramic tile forming the ceramic tile layer takes a weight of several tens of kilograms. Therefore, it is not practical to use a fine ceramic having high strength and high cost. . Therefore, inexpensive cordierite and mullite refractories are mostly used as the material constituting the ceramic tile layer. Cordierite and mullite refractories are low in strength and may crack during use. In the worst case, the tiles may fall off.

図２には、上記の割れ１４が、金属スリーブ１０の内径側先端から蓄熱体層８の外径面に向けて発生して例を示している。この構成の場合、セラミックタイル層９が炉室内に突出する構造を採用しているため、割れ１４より先端側のセラミックタイル層９が炉内に脱落することとなる。   FIG. 2 shows an example in which the crack 14 is generated from the inner diameter side tip of the metal sleeve 10 toward the outer diameter surface of the heat storage layer 8. In the case of this configuration, since the ceramic tile layer 9 protrudes into the furnace chamber, the ceramic tile layer 9 on the tip side from the crack 14 falls into the furnace.

本発明の目的は、上記のような燃焼設備構造において、外径側が金属スリーブで囲われたセラミックタイル層を備え、このセラミックタイル層の内径側に蓄熱体層を備えた燃焼設備構造において、金属スリーブの先端近傍部位から割れがセラミックタイル層の内部に進行する可能性が低く、信頼性の高い燃焼設備構造を得ることにある。   An object of the present invention is to provide a combustion equipment structure having a ceramic tile layer whose outer diameter side is surrounded by a metal sleeve in the combustion equipment structure as described above, and a heat storage layer on the inner diameter side of the ceramic tile layer. There is a low possibility that cracks progress from the vicinity of the tip of the sleeve to the inside of the ceramic tile layer, and a highly reliable combustion equipment structure is obtained.

上記目的を達成するための、
炉内に燃料ガスを供給するガス供給ラインの外径側に前記ガス供給ラインに沿って延びる蓄熱体層を設け、
前記蓄熱体層の外径側に前記ガス供給ラインに沿って延びるセラミックタイル層を設け蓄熱体層をガス供給ラインの軸方向で位置決めする構成で、前記蓄熱体層の外径側に前記ガス供給ラインに沿って延びる金属スリーブを設け、
炉壁に穿たれたバーナ取付け孔に前記金属スリーブを介して、バーナを取付ける燃焼設備構造の特徴構成は、
前記蓄熱体層の炉室側端面の少なくとも一部を、前記セラミックタイル層の前記炉室側に設けられ、前記炉室側端面に沿って延びる蓄熱体支持部により支持するとともに、
前記セラミックタイル層の外径面を、前記炉壁の全幅に渡って前記バーナ取付け孔の内面に沿って延びる外径面として構成し、
前記金属スリーブの内径面を前記セラミックタイル層の外径面に接触させて構成するとともに、前記金属スリーブの炉室側端と前記炉室との間にセラミックボンド層を設け、当該セラミックボンド層で、前記金属スリーブの炉室側端と前記セラミックタイル層の外径面とを連結固定する構成で、
前記セラミックタイル層の炉室側先端の位置が、炉内に接する面である炉壁の内面の位置に設定され、
前記金属スリーブの炉室側端が、前記炉壁の内面の位置よりも炉壁外面側に位置され、
前記セラミックボンド層が、前記金属スリーブの炉室側端と前記炉壁の内面の位置との間に設けられていることにある。 To achieve the above purpose,
A heat storage layer extending along the gas supply line is provided on the outer diameter side of the gas supply line for supplying fuel gas into the furnace,
A ceramic tile layer extending along the gas supply line is provided on the outer diameter side of the heat storage body layer to position the heat storage body layer in the axial direction of the gas supply line, and the gas supply to the outer diameter side of the heat storage body layer Provide a metal sleeve extending along the line,
The characteristic configuration of the combustion equipment structure for attaching the burner to the burner mounting hole drilled in the furnace wall via the metal sleeve is as follows:
At least a part of the furnace chamber side end surface of the heat storage body layer is provided on the furnace chamber side of the ceramic tile layer, and supported by a heat storage body support portion extending along the furnace chamber side end surface,
The outer diameter surface of the ceramic tile layer is configured as an outer diameter surface extending along the inner surface of the burner mounting hole over the entire width of the furnace wall,
The inner diameter surface of the metal sleeve is configured to contact the outer diameter surface of the ceramic tile layer, and a ceramic bond layer is provided between the furnace chamber side end of the metal sleeve and the furnace chamber. In the configuration for connecting and fixing the furnace chamber side end of the metal sleeve and the outer diameter surface of the ceramic tile layer ,
The position of the front end of the ceramic tile layer on the furnace chamber side is set to the position of the inner surface of the furnace wall, which is the surface in contact with the furnace,
The furnace chamber side end of the metal sleeve is positioned closer to the furnace wall outer surface side than the position of the inner surface of the furnace wall,
The ceramic bond layer is provided between the end of the metal sleeve on the furnace chamber side and the position of the inner surface of the furnace wall .

この燃焼設備構造では、セラミックタイル層により蓄熱体層を抱き込み、その位置決めを良好に行える。一方、セラミックタイル層と金属スリーブとの関係に関しては、セラミックタイル層の外径側には金属スリーブが配設されるが、この金属スリーブとセラミックタイル層とが例えばエッジで当たることはない。即ち、金属スリーブとセラミックタイル層との間で熱膨張率の差に基づいて、金属スリーブとセラミックタイル層の接頭部位から熱歪に基づいて割れが発生することはなく、従来技術に見られたようなセラミックタイル層内への割れの進行を避けることができる。
そして、金属スリーブとセラミックタイル層との接着状態は、セラミックボンド層で確保できる。 In this combustion equipment structure, the thermal storage layer is embraced by the ceramic tile layer, and the positioning can be performed satisfactorily. On the other hand, with respect to the relationship between the ceramic tile layer and the metal sleeve, a metal sleeve is disposed on the outer diameter side of the ceramic tile layer, but the metal sleeve and the ceramic tile layer do not hit the edge, for example. That is, based on the difference in the coefficient of thermal expansion between the metal sleeve and the ceramic tile layer, cracks did not occur based on the thermal strain from the prefix portion of the metal sleeve and the ceramic tile layer, which was seen in the prior art. The progress of cracks in the ceramic tile layer can be avoided.
And the adhesion state of a metal sleeve and a ceramic tile layer is securable with a ceramic bond layer.

さて、上記構成において、前記金属スリーブがステンレス材からなり、前記蓄熱体層がセラミックウール層又はセラミックボール層からなることが好ましい。
安価で汎用性のある材料で蓄熱体層を構成するとともに、金属スリーブに耐久性を持たせることが可能となる。 In the above configuration, it is preferable that the metal sleeve is made of stainless steel and the heat storage layer is made of a ceramic wool layer or a ceramic ball layer.
The heat storage layer can be made of an inexpensive and versatile material, and the metal sleeve can be made durable.

さらに、前記金属スリーブの炉壁外面側にフランジ部を備え、前記フランジ部により前記バーナ部が炉壁に固定されることが好ましい。
金属スリーブにフランジ部を設けることにより、当該フランジ部でバーナを炉壁外面側から確実に支持できる。
本発明により、損傷の可能性を低減させ、高コストセラミックに変更することなく、耐久性の高いセラミックタイルを備えた燃焼設備構造が実現できた。 Furthermore, it is preferable that a flange portion is provided on the furnace wall outer surface side of the metal sleeve, and the burner portion is fixed to the furnace wall by the flange portion.
By providing the flange portion on the metal sleeve, the burner can be reliably supported from the outer surface side of the furnace wall by the flange portion.
According to the present invention, the possibility of damage is reduced, and a combustion facility structure having a highly durable ceramic tile can be realized without changing to a high-cost ceramic.

本願に係る燃焼設備構造を採用した炉のバーナ付近の構成を示す図The figure which shows the structure of the vicinity of the burner of the furnace which employ | adopted the combustion equipment structure which concerns on this application 従来構成を示す図Diagram showing conventional configuration

以下、本願に係る燃焼設備構造を採用した加熱炉のバーナ部１に関して説明する。
図１は、先に説明した図２と同様な断面図である。
この図では、炉内１２に燃料ガスｇ１を供給する燃料ガス供給ライン２を設けたバーナ部１を示すが、このバーナ部１の周囲には、別途、酸素含有ガスを供給する酸素含有ガスライン（図外）が設けられ、炉内１２において、燃料ガス供給ライン２から供給された燃料ガスｇ１と、酸素含有ガス供給ラインから供給された酸素含有ガスが混合して、良好に燃焼が行われる。 Hereinafter, the burner part 1 of the heating furnace which employ | adopted the combustion equipment structure which concerns on this application is demonstrated.
FIG. 1 is a cross-sectional view similar to FIG. 2 described above.
This figure shows a burner section 1 provided with a fuel gas supply line 2 for supplying a fuel gas g1 to the furnace 12, but an oxygen-containing gas line for supplying an oxygen-containing gas separately around the burner section 1. (Not shown) is provided, and in the furnace 12, the fuel gas g <b> 1 supplied from the fuel gas supply line 2 and the oxygen-containing gas supplied from the oxygen-containing gas supply line are mixed to perform good combustion. .

以下、バーナ部１の詳細構成について説明する。
バーナ部１は、炉内１２に燃料ガスｇ１を供給するガス供給ライン２を形成する供給管状体（６・７）の外径側にガス供給ライン２に沿って延びる蓄熱体層８を設け、さらに、蓄熱体層８の外径側にガス供給ライン２に沿って延びるセラミックタイル層９を設け、蓄熱体層８をガス供給ライン２の軸方向で位置決めする構成が採用されている。さらに、蓄熱体層８の外径側にガス供給ラインに沿って延びる金属スリーブ１０を設け、炉壁５に穿たれたバーナ取付け孔に金属スリーブ１０を介して取付ける燃焼設備構造を取っている。 Hereinafter, a detailed configuration of the burner unit 1 will be described.
The burner unit 1 is provided with a heat storage body layer 8 extending along the gas supply line 2 on the outer diameter side of the supply tubular body (6, 7) forming the gas supply line 2 for supplying the fuel gas g1 to the furnace 12; Furthermore, the structure which provides the ceramic tile layer 9 extended along the gas supply line 2 in the outer diameter side of the thermal storage body layer 8, and positions the thermal storage body layer 8 in the axial direction of the gas supply line 2 is employ | adopted. Further, a metal sleeve 10 extending along the gas supply line is provided on the outer diameter side of the heat storage body layer 8, and a combustion equipment structure is attached to the burner mounting hole formed in the furnace wall 5 via the metal sleeve 10.

ここで、供給管状体は、通常の金属部材（ＳＵＳ等）からなる基端側供給管７と、その先端に設けられ、耐火性の合金材料（例えばインコネル601など）からなる供給ノズル６とから構成されている。蓄熱体層８はセラミックウール層又はセラミックボール層からなっている。   Here, the supply tubular body is composed of a base end side supply pipe 7 made of a normal metal member (SUS or the like) and a supply nozzle 6 provided at the tip thereof and made of a refractory alloy material (for example, Inconel 601 or the like). It is configured. The heat storage layer 8 is made of a ceramic wool layer or a ceramic ball layer.

バーナ部１の全体は、図２で示した例とは異なり、前記供給ノズル６の先端が炉壁５から僅かに突出した位置に来るように炉壁５に取り付けられている。
そして、セラミックタイル層９の先端面の位置が炉壁５の内面（炉内１２に接する面）の位置とほぼ同様な位置となるように構成されている。従って、従来技術のように、セラミックタイル層９が脱落する等の問題は回避される。 Unlike the example shown in FIG. 2, the entire burner portion 1 is attached to the furnace wall 5 so that the tip of the supply nozzle 6 comes to a position slightly protruding from the furnace wall 5.
And the position of the front end surface of the ceramic tile layer 9 is comprised so that it may become a position substantially the same as the position of the inner surface of the furnace wall 5 (surface in contact with the furnace interior 12). Therefore, the problem that the ceramic tile layer 9 falls off as in the prior art is avoided.

蓄熱体層８の炉室側端面８ａの少なくとも一部が、セラミックタイル層９の炉室側に設けられ、炉室側端面８ａに沿って延びる蓄熱体支持部９ａにより支持されるとともに、セラミックタイル層９の外径面９ｃを、炉壁５の全幅に渡ってバーナ取付け孔１１の内面に沿って延びる外径面として構成し、さらに、金属スリーブ１０の内径面をセラミックタイル層９の外径面に接触させて構成されている。金属スリーブ１０はステンレス材からなり、金属スリーブ１０の炉壁外面側にフランジ部１０ａを備え、このフランジ部１０ａによりバーナ部１が炉壁５に固定されている。   At least a part of the furnace chamber side end surface 8a of the heat storage body layer 8 is provided on the furnace chamber side of the ceramic tile layer 9, and is supported by the heat storage body support portion 9a extending along the furnace chamber side end surface 8a. The outer diameter surface 9 c of the layer 9 is configured as an outer diameter surface extending along the inner surface of the burner mounting hole 11 over the entire width of the furnace wall 5, and the inner diameter surface of the metal sleeve 10 is formed as the outer diameter of the ceramic tile layer 9. It is configured in contact with the surface. The metal sleeve 10 is made of stainless steel and includes a flange portion 10 a on the outer surface side of the furnace wall of the metal sleeve 10, and the burner portion 1 is fixed to the furnace wall 5 by the flange portion 10 a.

ここで、セラミックタイル層９は、概略、円筒状の構成とされるが、その先端（炉内側）に内径側に延びる蓄熱体支持部９ａを備え、この蓄熱体支持部９ａのガス供給ラインに沿った方向の端面９ｂが蓄熱体層８を炉内側から位置保持して支持するように構成されている。   Here, the ceramic tile layer 9 has a generally cylindrical configuration, and is provided with a heat storage body support portion 9a extending to the inner diameter side at the tip (furnace inside), and a gas supply line of the heat storage body support portion 9a. The end surface 9b in the extending direction is configured to hold and support the heat storage layer 8 from the inside of the furnace.

そして、本願では、金属スリーブ１０の炉室側端１０ｂと炉内１２との間にセラミックボンド層１３を設け、当該セラミックボンド層１３で、金属スリーブ１０の炉室側端１０ｂとセラミックタイル層９の外径面とを連結固定している。
結果、セラミックタイル層９が、膨張率の異なる蓄熱体層８及び金属スリーブ１０との間の両者からその膨張・収縮を規制される等の問題を回避でき、先に説明した割れの問題を回避できる。蓄熱体層８をアルミナウールで、セラミックタイル層９をコージェライト、ムライト系耐火物で、金属スリーブ１０をSUS310Sなどの耐熱ステンレスで構成する場合は、セラミックボンド層１３をアルミナベースの耐熱パテで構成することができる。このセラミックボンド層１３による結合は、金属スリーブ１０内にセラミックタイル層９を収納した状態で、両者を高温で焼成して、接合することができる。 In the present application, the ceramic bond layer 13 is provided between the furnace chamber side end 10 b of the metal sleeve 10 and the furnace interior 12, and the furnace bond side end 10 b of the metal sleeve 10 and the ceramic tile layer 9 are formed by the ceramic bond layer 13. Are connected and fixed to the outer diameter surface.
As a result, the ceramic tile layer 9 can avoid problems such as the expansion and contraction being restricted by both the heat storage layer 8 and the metal sleeve 10 having different expansion rates, and the crack problem described above can be avoided. it can. When the heat storage layer 8 is made of alumina wool, the ceramic tile layer 9 is made of cordierite or mullite refractory, and the metal sleeve 10 is made of heat-resistant stainless steel such as SUS310S, the ceramic bond layer 13 is made of alumina-based heat-resistant putty. can do. The bonding by the ceramic bond layer 13 can be performed by firing the ceramic tile layer 9 in the metal sleeve 10 and firing them at a high temperature.

１ バーナ部
２ 燃料ガス供給ライン
５ 炉壁
６ 供給ノズル
８ 蓄熱体層
９ セラミックタイル層
１０ 金属スリーブ
１２ 炉内
１３ セラミックボンド層 DESCRIPTION OF SYMBOLS 1 Burner part 2 Fuel gas supply line 5 Furnace wall 6 Supply nozzle 8 Thermal storage layer 9 Ceramic tile layer 10 Metal sleeve 12 Furnace 13 Ceramic bond layer

Claims (3)

炉内に燃料ガスを供給するガス供給ラインの外径側に前記ガス供給ラインに沿って延びる蓄熱体層を設け、
前記蓄熱体層の外径側に前記ガス供給ラインに沿って延びるセラミックタイル層を設け前記蓄熱体層を前記ガス供給ラインの軸方向で位置決めする構成で、前記蓄熱体層の外径側に前記ガス供給ラインに沿って延びる金属スリーブを設け、
炉壁に穿たれたバーナ取付け孔に前記金属スリーブを介して取付ける燃焼設備構造であって、
前記蓄熱体層の炉室側端面の少なくとも一部を、前記セラミックタイル層の前記炉室側に設けられ、前記炉室側端面に沿って延びる蓄熱体支持部により支持するとともに、
前記セラミックタイル層の外径面を、前記炉壁の全幅に渡って前記バーナ取付け孔の内面に沿って延びる外径面として構成し、
前記金属スリーブの内径面を前記セラミックタイル層の外径面に接触させて構成するとともに、前記金属スリーブの炉室側端と前記炉室との間にセラミックボンド層を設け、当該セラミックボンド層で、前記金属スリーブの炉室側端と前記セラミックタイル層の外径面とを連結固定する構成で、
前記セラミックタイル層の炉室側先端の位置が、炉内に接する面である炉壁の内面の位置に設定され、
前記金属スリーブの炉室側端が、前記炉壁の内面の位置よりも炉壁外面側に位置され、
前記セラミックボンド層が、前記金属スリーブの炉室側端と前記炉壁の内面の位置との間に設けられている燃焼設備構造。 A heat storage layer extending along the gas supply line is provided on the outer diameter side of the gas supply line for supplying fuel gas into the furnace,
A ceramic tile layer extending along the gas supply line is provided on the outer diameter side of the heat storage body layer, and the heat storage body layer is positioned in the axial direction of the gas supply line. Provided with a metal sleeve extending along the gas supply line;
A combustion equipment structure that is attached to the burner attachment hole formed in the furnace wall via the metal sleeve,
At least a part of the furnace chamber side end surface of the heat storage body layer is provided on the furnace chamber side of the ceramic tile layer, and supported by a heat storage body support portion extending along the furnace chamber side end surface,
The outer diameter surface of the ceramic tile layer is configured as an outer diameter surface extending along the inner surface of the burner mounting hole over the entire width of the furnace wall,
The inner diameter surface of the metal sleeve is configured to contact the outer diameter surface of the ceramic tile layer, and a ceramic bond layer is provided between the furnace chamber side end of the metal sleeve and the furnace chamber. In the configuration for connecting and fixing the furnace chamber side end of the metal sleeve and the outer diameter surface of the ceramic tile layer ,
The position of the front end of the ceramic tile layer on the furnace chamber side is set to the position of the inner surface of the furnace wall, which is the surface in contact with the furnace,
The furnace chamber side end of the metal sleeve is positioned closer to the furnace wall outer surface side than the position of the inner surface of the furnace wall,
A combustion facility structure in which the ceramic bond layer is provided between a furnace chamber side end of the metal sleeve and a position of an inner surface of the furnace wall . 前記金属スリーブがステンレス材からなり、前記蓄熱体層がセラミックウール層又はセラミックボール層からなる請求項１記載の燃焼設備構造。   The combustion equipment structure according to claim 1, wherein the metal sleeve is made of stainless steel, and the heat storage layer is made of a ceramic wool layer or a ceramic ball layer. 前記金属スリーブの炉壁外面側にフランジ部を備え、前記フランジ部により前記バーナ部が炉壁に固定される請求項１又は２記載の燃焼設備構造。   The combustion facility structure according to claim 1 or 2, wherein a flange portion is provided on a furnace wall outer surface side of the metal sleeve, and the burner portion is fixed to the furnace wall by the flange portion.
JP2009152889A 2009-06-26 2009-06-26 Combustion equipment structure Expired - Fee Related JP5385702B2 (en)

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