JPH0842850A - Flame stabilizer - Google Patents
Flame stabilizerInfo
- Publication number
- JPH0842850A JPH0842850A JP19783894A JP19783894A JPH0842850A JP H0842850 A JPH0842850 A JP H0842850A JP 19783894 A JP19783894 A JP 19783894A JP 19783894 A JP19783894 A JP 19783894A JP H0842850 A JPH0842850 A JP H0842850A
- Authority
- JP
- Japan
- Prior art keywords
- metal pipe
- flame stabilizer
- combustion
- pipe body
- base portion
- 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
Links
Landscapes
- Control Of Combustion (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、燃焼ガス供給管から受
け取った燃焼ガスを案内するための金属パイプの開口端
部に対して筒状基部の一端部が取り付けられており、筒
状基部の他端部に形成された燃焼部でスパークロッドと
の間の火花放電によって、燃焼ガスを燃焼せしめるため
の保炎器に関し、特に、筒状基部及び燃焼部が共に導電
性セラミックス材料によって作成された保炎器に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has one end of a tubular base attached to an open end of a metal pipe for guiding combustion gas received from a combustion gas supply pipe. A flame holder for burning combustion gas by spark discharge between the combustion rod formed at the other end and the spark rod, and particularly, the tubular base and the combustion unit are both made of a conductive ceramic material. Regarding the flame stabilizer.
【０００２】[0002]
【従来技術】従来、この種の保炎器としては金属パイプ
の開口端部に取付けるための筒状基部と筒状基部に対し
て一体に連設されて燃焼ガスを燃焼空気によって燃焼せ
しめるための燃焼部とが全体としてステンレス鋼などの
金属材料によって形成されたものがある。しかし、従来
の保炎器ではステンレス鋼などの金属材料によって形成
されていたので、燃焼ガスの燃焼に伴なって発生される
熱量が増加して高温になると、酸化消耗が大きく、寿命
が短いものであった。本願出願人は、これら課題を解決
した保炎器として、先に特願平１−２８２５０１（特許
公開平成３−１４４２０７号）を提案している。2. Description of the Related Art Conventionally, as a flame stabilizer of this type, a cylindrical base for attaching to an open end of a metal pipe and an integrally connected continuous base to the cylindrical base are used to burn combustion gas with combustion air. There is one in which the combustion section is formed entirely of a metal material such as stainless steel. However, since conventional flame stabilizers are made of metallic materials such as stainless steel, when the amount of heat generated by combustion of combustion gas increases and the temperature rises, oxidation consumption is large and life is short. Met. The applicant of the present application has previously proposed Japanese Patent Application No. 1-282801 (Patent Publication No. Heisei 3-144207) as a flame stabilizer that has solved these problems.
【０００３】本願出願人が先に提案した保炎器を図２に
基づいて説明する。かかる保炎器１０は、導電性セラミ
ックス材料で一体に形成された筒状基部１１と燃焼部１
２と保持部１３とを有し、前記筒状基部１１が金属パイ
プ２０の開口端部２１Ａに、挿入して取付けられてい
る。尚、保持部材１３の周縁部には燃焼ガス供給孔１３
ａが形成されている。そして、保炎器１０の内部には金
属パイプ２０及び前記保持部１３によって保持固定され
たスパークロッド２５が配置され、前記スパークロッド
２５の先端部は、保炎器の筒状基部１１の内部空間を介
して延長されたのち、燃焼部１２の内部空間（すなわち
燃焼空間）に対して突出されている。またスパークロッ
ド２５の他端部は電源（図示せず）に接続されている。
更に、金属パイプ本体２１の基部２１Ｂに対して開口さ
れており燃焼ガス供給源（図示せず）から燃焼ガスを供
給するための燃焼ガス供給管２３が設けられ、前記燃焼
ガスは、前記燃焼ガス供給管２３を介して、金属パイプ
２０に導入され燃焼部まで送られる。The flame stabilizer previously proposed by the applicant of the present application will be described with reference to FIG. The flame stabilizer 10 includes a cylindrical base portion 11 and a combustion portion 1 which are integrally formed of a conductive ceramic material.
2 and a holding portion 13, the tubular base portion 11 is inserted and attached to the open end portion 21A of the metal pipe 20. In addition, the combustion gas supply hole 13
a is formed. The spark rod 25 held and fixed by the metal pipe 20 and the holding portion 13 is disposed inside the flame stabilizer 10, and the tip end of the spark rod 25 is an internal space of the tubular base portion 11 of the flame stabilizer. After being extended via, the inner space of the combustion section 12 (that is, the combustion space) is projected. The other end of the spark rod 25 is connected to a power source (not shown).
Furthermore, a combustion gas supply pipe 23 for supplying combustion gas from a combustion gas supply source (not shown) is provided to the base portion 21B of the metal pipe body 21, and the combustion gas is the combustion gas. It is introduced into the metal pipe 20 through the supply pipe 23 and sent to the combustion section.
【０００４】ここで、保炎器１０の筒状基部１１の一端
部１１Ａは肉厚が削減され、金属パイプ本体２１の開口
端部２１Ａに対して挿入して取付けられている。また、
筒状基部１１の一端部１１Ａは、金属パイプ本体２１の
開口端部２１Ａに挿入して取付けられたとき、固定ネジ
２２の先端部を係入して安定化するために、その周面に
対し少なくとも１つの係止凹部１１ａが形成されてい
る。Here, one end portion 11A of the tubular base portion 11 of the flame stabilizer 10 has a reduced thickness, and is inserted into and attached to the opening end portion 21A of the metal pipe body 21. Also,
When the end portion 11A of the tubular base portion 11 is inserted into and attached to the opening end portion 21A of the metal pipe body 21, the end portion 11A of the fixing screw 22 is engaged and stabilized with respect to the peripheral surface thereof. At least one locking recess 11a is formed.
【０００５】筒状基部１１の一端部１１Ａの周面には、
固定ネジ２２の先端部による固定を安定化する目的で、
所望により、銅フィルムなどでできた緩衝部材１１ｂを
配置している。筒状基部１１の一端部１１Ａには、金属
パイプ本体２１との間の導電路を遮断しない範囲内で、
燃焼ガスの漏出を防止する目的で耐熱性接着剤からなる
接着剤層１１ｃ，１１ｄを形成している。On the peripheral surface of the one end 11A of the cylindrical base 11,
In order to stabilize the fixation by the tip of the fixing screw 22,
A cushioning member 11b made of a copper film or the like is arranged if desired. In the one end 11A of the tubular base 11, within a range that does not block the conductive path with the metal pipe body 21,
Adhesive layers 11c and 11d made of a heat-resistant adhesive are formed for the purpose of preventing leakage of combustion gas.
【０００６】この従来の保炎器を組立てるには、、まず
その筒状基部１１の一端部１１Ａの周面に対して緩衝部
材１１ｂを配置し、かつ先端面および段部端面に対して
燃焼ガスの漏出を防止するために耐熱性接着剤（これに
より接着剤層１１ｃ，１１ｄが形成される）を配置した
状態で金属パイプ本体２１の開口端部２１Ａに挿入す
る。このとき、スパークロッド２５は、保持部材１３の
保持孔１３ｂに対して挿入され、絶縁層１４を介して保
持される。そののち、金属パイプ本体２１のネジ孔２１
ａに対して固定ネジ２２を螺入することにより、その先
端部で緩衝部材１１ｂを押圧して係止凹部１１ａに係入
せしめる。以上により、本発明にかかる保炎器１０は、
金属パイプ２０に対して取付けられ、組み立てられる。To assemble this conventional flame stabilizer, first, a cushioning member 11b is arranged on the peripheral surface of one end 11A of the tubular base 11, and combustion gas is formed on the tip end surface and the step end surface. The heat-resistant adhesive (which forms the adhesive layers 11c and 11d) for preventing the leakage of the metal pipe is inserted into the open end 21A of the metal pipe body 21. At this time, the spark rod 25 is inserted into the holding hole 13 b of the holding member 13 and is held via the insulating layer 14. After that, the screw hole 21 of the metal pipe body 21
By screwing the fixing screw 22 into the a, the buffer member 11b is pressed by the tip end thereof to be engaged with the locking recess 11a. From the above, the flame stabilizer 10 according to the present invention is
It is attached to the metal pipe 20 and assembled.
【０００７】次に、この保炎器の動作、作用について説
明する。保炎器１０は、燃焼ガス供給管２３によって燃
焼ガス供給源から矢印Ａ1 で示すごとく供給され矢印Ａ
2 で示すごとく案内された燃焼ガスを金属パイプ本体２
１の開口端部２１Ａから受取り筒状基部１１によって保
持部材１３まで案内したのち、保持部材１３の周縁部に
形成された燃焼ガス供給孔１３ａを介して矢印Ａ3 で示
すごとく燃焼部１２の燃焼空間に対して供給する。燃焼
部１２の燃焼空間では、燃焼ガスが空気供給孔１２ａか
ら矢印Ｂで示すごとく与えられた燃焼空気と混合された
のち、スパークロッド２５と燃焼部１２の内周面との間
で発生された火花放電によって点火されて燃焼せしめら
れる。Next, the operation and action of this flame stabilizer will be described. The flame stabilizer 10 is supplied from the combustion gas supply source by the combustion gas supply pipe 23 as shown by the arrow A 1 , and the arrow A 1
Guide the combustion gas as shown in 2 to the metal pipe body 2
After being guided from the open end portion 21A of No. 1 to the holding member 13 by the receiving cylindrical base portion 11, the combustion of the combustion portion 12 is performed through the combustion gas supply hole 13a formed in the peripheral portion of the holding member 13 as indicated by an arrow A 3. Supply for space. In the combustion space of the combustion section 12, the combustion gas is mixed with the combustion air given from the air supply hole 12a as shown by the arrow B, and then generated between the spark rod 25 and the inner peripheral surface of the combustion section 12. It is ignited by a spark discharge and burned.
【０００８】[0008]
【発明が解決しようとする課題】従来の保炎器を燃焼炉
に装着し、長時間使用すると、保炎器に亀裂等は見られ
なかったものの、接着層の酸化が激しく黒色に変色しま
たセラミックス製の保炎器を金属パイプ部分から取外す
ことはできなかった。そのため保炎器のセラミック部分
が損傷した場合、金属パイプのステンレス鋼部分の再使
用は不可能であり、製造コスト上好ましいものでなかっ
た。また、熱膨張差緩和材として銅箔等の金属層、およ
び接合強度発現のためアロンセラミック等の接着層を構
成させる必要があり、製造工程上煩雑であり、強度補強
のためさらに穴付きの固定ネジを必要とする技術的課題
があった。本発明は上記課題を解決するためになされた
ものであり、製造容易でしかも保炎器のセラミックス部
分から金属パイプ本体を取り外すことのできる保炎器を
提供することを目的とするものである。When a conventional flame stabilizer was installed in a combustion furnace and used for a long time, cracks and the like were not found in the flame stabilizer, but the adhesive layer was strongly oxidized and turned black. It was not possible to remove the ceramic flame stabilizer from the metal pipe part. Therefore, if the ceramic part of the flame stabilizer is damaged, the stainless steel part of the metal pipe cannot be reused, which is not preferable in terms of manufacturing cost. In addition, it is necessary to configure a metal layer such as copper foil as a thermal expansion difference relaxation material and an adhesive layer such as Aron ceramic for manifesting the bonding strength, which is complicated in the manufacturing process and further fixed with holes to reinforce the strength. There was a technical problem that required screws. The present invention has been made to solve the above problems, and an object of the present invention is to provide a flame stabilizer that is easy to manufacture and that can remove the metal pipe body from the ceramic portion of the flame stabilizer.
【０００９】[0009]
【課題を解決するための手段】上記目的を達成するため
に、本発明にかかる保炎器は、筒状基部及び燃焼部がと
もに導電性セラミックスよりなる保炎器本体部と、前記
燃焼部に先端部が突出し、基部は電源に接続され、火花
放電を発生するスパークロッドと、開口端部に前記筒状
基部の一端部が取りつけられ、基部がスパークロッドの
基部とともに電源に接続されると共に、スパークロッド
の基端部を保持しかつ燃焼ガス供給管から与えられた燃
焼ガスを前記保炎器本体部に案内する金属パイプ本体と
により構成される保炎器において、前記保炎器本体部の
筒状基部と金属パイプ部とは螺子により取り外し可能に
取りつけられると共に、前記筒状基部の螺子と金属パイ
プ部の螺子の接触面間に窒化硼素を主成分とする耐熱性
セラミックスからなる中間層を介在させたことを特徴と
する。In order to achieve the above-mentioned object, a flame stabilizer according to the present invention comprises a flame stabilizer main body in which a tubular base portion and a combustion portion are both made of conductive ceramics, and the combustion portion. The tip part protrudes, the base part is connected to a power source, a spark rod for generating a spark discharge, and one end part of the cylindrical base part is attached to the opening end part, and the base part is connected to the power source together with the base part of the spark rod, A flame stabilizer constituted by a metal pipe main body which holds a base end portion of a spark rod and guides combustion gas given from a combustion gas supply pipe to the flame stabilizer main body, The tubular base portion and the metal pipe portion are detachably attached by a screw, and from the heat-resistant ceramics containing boron nitride as a main component between the contact surfaces of the screw of the tubular base portion and the screw of the metal pipe portion. Characterized in that is interposed that the intermediate layer.
【００１０】[0010]
【実施例】以下、図１に基づいてにこの保炎器の概略を
説明する。１０は、金属パイプ２０の開口端部に取付け
られて使用される本発明にかかる保炎器であって、筒状
基部１１と燃焼部１２と保持部１３とが全体として導電
性セラミックス材料で一体に形成されている。特に、本
発明にかかる保炎器は、筒状基部１１の一端部１１Ａに
は、雄螺子部３１が形成され、それと対応する雌螺子部
３２が金属パイプ本体２１の開口端部２１Ａに形成され
ることに特徴がある。そのため、保炎器１０の筒状基部
１１は、一端部１１Ａで金属パイプ２０に包有された金
属パイプ本体２１の開口端部２１Ａに対して螺合して取
外し可能に取付けることができる。DESCRIPTION OF THE PREFERRED EMBODIMENTS An outline of this flame stabilizer will be described below with reference to FIG. Reference numeral 10 is a flame stabilizer according to the present invention that is used by being attached to the open end of the metal pipe 20, and the tubular base 11, the combustion portion 12, and the holding portion 13 are integrally made of a conductive ceramic material as a whole. Is formed in. Particularly, in the flame stabilizer according to the present invention, the male screw portion 31 is formed on the one end portion 11A of the tubular base portion 11, and the corresponding female screw portion 32 is formed on the open end portion 21A of the metal pipe body 21. It is characterized by that. Therefore, the tubular base portion 11 of the flame stabilizer 10 can be detachably attached by being screwed to the open end portion 21A of the metal pipe body 21 included in the metal pipe 20 at the one end portion 11A.
【００１１】前記保炎器１０の燃焼部１２は、筒状基部
１１の他端部１１Ｂに対して連設されており、その内部
空間で燃焼ガスが燃焼せしめられる。燃焼部１２には、
筒状基部１１の他端部１１Ｂへの連絡部に対して少なく
とも１つの空気供給孔１２ａが形成されている。保炎器
１０の保持部１３は、筒状基部１１の他端部１１Ｂの内
周面に対して連設されており、その周縁部に燃焼ガスを
燃焼部１２の内部空間に向けて供給するための燃焼ガス
供給孔１３ａが所望の角度間隔をおいて形成され、かつ
中心部に後述のスパークロッド２５を絶縁層１４を介し
て保持するための保持孔１３ｂを有している。The combustion part 12 of the flame stabilizer 10 is connected to the other end 11B of the cylindrical base 11, and the combustion gas is burned in the internal space thereof. In the combustion section 12,
At least one air supply hole 12a is formed in the connecting portion to the other end 11B of the tubular base 11. The holding portion 13 of the flame stabilizer 10 is connected to the inner peripheral surface of the other end portion 11B of the cylindrical base portion 11, and supplies combustion gas to the inner space of the combustion portion 12 at the peripheral portion thereof. Combustion gas supply holes 13a are formed at desired angular intervals, and have a holding hole 13b at the center for holding a spark rod 25, which will be described later, via an insulating layer 14.
【００１２】前記金属パイプ２０は、開口端部２１Ａに
対し保炎器１０の筒状基部１１の一端部１１Ａが螺合し
て取付けられた金属パイプ本体２１と、金属パイプ本体
２１の基部２１Ｂに対して開口されており燃焼ガス供給
源（図示せず）から燃焼ガスを供給するための燃焼ガス
供給管２３と、金属パイプ本体２１の基部２１Ｂに対し
て絶縁層２４を介して基端部が保持されたスパークロッ
ド２５と、スパークロッド２５および金属パイプ本体２
１を給電線２６を介して適宜の電源（図示せず）に接続
するための電源端子２７とを包有している。前記スパー
クロッド２５の先端部は、保炎器１０の筒状基部１１の
内部空間を介して延長されたのち、燃焼部１２の内部空
間（すなわち燃焼空間）に対して突出されている。The metal pipe 20 is attached to a metal pipe body 21 in which one end 11A of the cylindrical base portion 11 of the flame stabilizer 10 is screwed onto the opening end portion 21A, and a base portion 21B of the metal pipe body 21. A combustion gas supply pipe 23, which is opened to the combustion gas supply source (not shown) for supplying combustion gas, and a base end portion of the metal pipe body 21 to the base portion 21B via an insulating layer 24. The held spark rod 25 and the spark rod 25 and the metal pipe body 2
1 and a power supply terminal 27 for connecting 1 to an appropriate power supply (not shown) via a power supply line 26. The tip portion of the spark rod 25 extends through the internal space of the tubular base portion 11 of the flame stabilizer 10 and then protrudes into the internal space of the combustion unit 12 (that is, the combustion space).
【００１３】本発明にかかる保炎器を製造するには、筒
状基部１１Ａがストレートの円筒状となる保炎器１０を
ＳｉＣ材料にて鋳込成形後、焼成する。そして、この焼
成体の筒状基部１１Ａに図１に示すように雄螺子加工す
る。これに、Ｓｉを含浸し、導電性のＳｉ−ＳｉＣ製保
炎器本体を得る。一方、金属パイプ２０はステンレス鋼
で図１に示すように雌螺子加工を行う。この保炎器１０
に碍子からなる絶縁層１４とスパークロッド２５を装着
するとともに、金属パイプ本体２１を螺合し、セラミッ
クス保炎器一体製品を製作する。この際、雄螺子部３１
と雌螺子部３２の接触面の間には窒化硼素の粉末を塗布
し、金属パイプ本体２１と筒状基部１１Ａとの間に中間
層を形成しつつ、セラミックス保炎器一体製品を製造す
る。In order to manufacture the flame stabilizer according to the present invention, the flame stabilizer 10 having the cylindrical base portion 11A in a straight cylindrical shape is cast-molded from a SiC material and then fired. Then, the cylindrical base portion 11A of this fired body is subjected to male thread processing as shown in FIG. This is impregnated with Si to obtain a conductive Si-SiC flame stabilizer body. On the other hand, the metal pipe 20 is made of stainless steel and is internally threaded as shown in FIG. This flame stabilizer 10
The insulating layer 14 made of an insulator and the spark rod 25 are attached to the metal pipe main body 21, and the metal pipe main body 21 is screwed into the ceramic flame stabilizer integrated product. At this time, the male screw portion 31
A powder of boron nitride is applied between the contact surfaces of the female screw portion 32 and the female screw portion 32, and an intermediate layer is formed between the metal pipe body 21 and the cylindrical base portion 11A to manufacture a ceramic flame stabilizer integrated product.
【００１４】なお、上記実施例では、中間層を設けてい
るため、雄螺子加工後に寸法変化、即ち、Ｓｉ含浸前と
含浸後での寸法変化があっても中間層の介在により寸法
調整が行うことができる。言い換えれば、螺子加工は厳
格な寸法精度を持って加工する必要なく、加工も容易に
行うことができる。もちろん、螺子加工は、Ｓｉ含浸後
の最終段階（Ｓｉ含浸体）で行っても良い。また、窒化
硼素は結晶構造がグラファイトに似た層状の形態をもつ
セラミックスであり、滑り性が良いため中間介在層とし
て好ましいものであるが、必要に応じ、更にＳｉ3 Ｎ4
（窒化珪素）等高強度材料を添加し、中間介在物の特性
を向上させることや、塗布方法として例えば熱硬化性の
樹脂のスラリーと混合して使用していも良い。Since the intermediate layer is provided in the above-mentioned embodiment, the dimension adjustment is performed by the interposition of the intermediate layer even if the dimension changes after the male screw processing, that is, the dimension changes before and after Si impregnation. be able to. In other words, the screw processing does not need to be processed with strict dimensional accuracy, and can be easily processed. Of course, the screwing may be performed at the final stage (Si-impregnated body) after Si-impregnation. Boron nitride is a ceramic having a layered morphology similar to graphite in crystal structure, and is preferable as an intermediate intervening layer because of its good slidability, but Si 3 N 4 may be added if necessary.
A high-strength material such as (silicon nitride) may be added to improve the properties of the intermediate inclusions, or the coating method may be used by mixing with a slurry of thermosetting resin.
【００１５】次に、この保炎器の動作、作用について説
明する。保炎器１０は、燃焼ガス供給管２３によって燃
焼ガス供給源から矢印Ａ1 で示すごとく供給され矢印Ａ
2 で示すごとく案内された燃焼ガスを金属パイプ本体２
１の開口端部２１Ａから受け取り筒状基部１１によって
保持部材１３まで案内したのち、保持部材１３の周縁部
に形成された燃焼ガス供給孔１３ａを介して矢印Ａ3 で
示すごとく燃焼部１２の燃焼空間に対して供給する。燃
焼部１２の燃焼空間では、燃焼ガスが空気供給孔１２ａ
から矢印Ｂで示すごとく与えられた燃焼空気と混合され
たのち、スパークロッド２５と燃焼部１２の内周面との
間で発生された火花放電によって点火されて燃焼せしめ
られる。Next, the operation and action of this flame stabilizer will be described. The flame stabilizer 10 is supplied from the combustion gas supply source by the combustion gas supply pipe 23 as shown by the arrow A 1 , and the arrow A 1
Guide the combustion gas as shown in 2 to the metal pipe body 2
After being guided from the open end portion 21A of No. 1 to the holding member 13 by the receiving tubular base portion 11, the combustion portion 12 is burned through the combustion gas supply hole 13a formed in the peripheral portion of the holding member 13 as indicated by an arrow A 3. Supply for space. In the combustion space of the combustion unit 12, the combustion gas is supplied with the air supply holes 12a.
After being mixed with the given combustion air as indicated by the arrow B, the sparks are ignited and burned by the spark discharge generated between the spark rod 25 and the inner peripheral surface of the combustion section 12.
【００１６】次に、本発明の実施例にかかる保炎器と、
従来の保炎器とを燃焼炉にセットし、８００℃の温度に
５００時間にわたり保持し、炉冷後、炉から保炎器を取
り出し、取付け状態を調べた。その結果、従来の保炎器
にあっては、亀裂等は見られなかったものの、接着層の
酸化が激しく黒色に変色しまたセラミックス製の保炎器
を金属パイプ本体から取外すことはできなかった。一
方、本発明の実施例にかかる保炎器にあっては、異常な
緩み、亀裂などは認められず、また保炎器のセラミック
ス部と金属パイプ本体は取り外すことが可能であった。Next, a flame stabilizer according to an embodiment of the present invention,
A conventional flame stabilizer was set in a combustion furnace, and the temperature was kept at 800 ° C. for 500 hours. After cooling the furnace, the flame stabilizer was taken out from the furnace and the mounting state was examined. As a result, in the conventional flame stabilizer, although cracks and the like were not seen, the oxidation of the adhesive layer was intensely changed to black and the ceramic flame stabilizer could not be removed from the metal pipe body. . On the other hand, in the flame stabilizer according to the example of the present invention, abnormal looseness and cracks were not recognized, and the ceramic portion and the metal pipe body of the flame stabilizer could be removed.
【００１７】[0017]
【発明の効果】本発明によれば、保炎器の筒状基部と金
属パイプ本体を螺子で、螺合すると共に、雄螺子部と雌
螺子部の間には窒化硼素を主成分とする耐熱性セラミッ
クスからなる中間層形成したため、長時間使用後であっ
ても金属パイプ本体の取外しが可能となり、そのため保
炎器のセラミックス部分が損傷した場合、金属パイプ本
体を再使用することができ、製造コストを安価にするこ
とができる。According to the present invention, the tubular base portion of the flame stabilizer and the metal pipe body are screwed with each other, and the heat resistance mainly containing boron nitride is provided between the male screw portion and the female screw portion. Since the intermediate layer made of flexible ceramics is formed, the metal pipe body can be removed even after long-term use, so if the ceramic part of the flame stabilizer is damaged, the metal pipe body can be reused. The cost can be reduced.
【図１】本発明にかかる保炎器の実施例を示す側面断面
図である。FIG. 1 is a side sectional view showing an embodiment of a flame stabilizer according to the present invention.
【図２】従来の保炎器を示す側面断面図である。FIG. 2 is a side sectional view showing a conventional flame stabilizer.
１１ 筒状基部 １１Ａ 一端部 １２ 燃焼部 １３ 保持部 １４ 絶縁層 ２０ 金属パイプ ２１ 金属パイプ本体 ２１Ａ 開口端部 ２１Ｂ 基部 ２３ 燃焼ガス供給管 ２４ 絶縁層 ２５ スパークロッド ３１ 雄螺子部 ３２ 雌螺子部 ３３ 中間層 11 Cylindrical base part 11A One end part 12 Combustion part 13 Holding part 14 Insulating layer 20 Metal pipe 21 Metal pipe body 21A Open end part 21B Base part 23 Combustion gas supply pipe 24 Insulating layer 25 Spark rod 31 Male screw part 32 Female screw part 33 Intermediate layer
───────────────────────────────────────────────────── フロントページの続き (72)発明者 吉田 久仁恵 神奈川県秦野市曽屋30 東芝セラミックス 株式会社開発研究所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kunie Yoshida 30 Soya, Hadano City, Kanagawa Prefecture Toshiba Ceramics Co., Ltd.
Claims (1)
ミックスよりなる保炎器本体部と、 前記燃焼部に先端部が突出し、基部は電源に接続され、
火花放電を発生するスパークロッドと、 開口端部に前記筒状基部の一端部が取りつけられ、基部
がスパークロッドの基部とともに電源に接続されると共
に、スパークロッドの基端部を保持しかつ燃焼ガス供給
管から与えられた燃焼ガスを前記保炎器本体部に案内す
る金属パイプ本体とにより構成される保炎器において、 前記保炎器本体部の筒状基部と金属パイプ部とは螺子に
より取り外し可能に取りつけられると共に、前記筒状基
部の螺子と金属パイプ部の螺子の接触面間に窒化硼素を
主成分とする耐熱性セラミックスからなる中間層を介在
させたことを特徴とする保炎器。1. A flame stabilizer main body in which both a tubular base portion and a combustion portion are made of conductive ceramics, a tip portion projects from the combustion portion, and the base portion is connected to a power source.
A spark rod for generating a spark discharge and one end of the tubular base portion are attached to the open end, the base portion is connected to the power source together with the base portion of the spark rod, and the base end portion of the spark rod is held and the combustion gas A flame stabilizer constituted by a metal pipe main body for guiding combustion gas given from a supply pipe to the flame stabilizer main body, wherein the tubular base of the flame stabilizer main body and the metal pipe are removed by screws. A flame stabilizer, which is mountable as much as possible, and in which an intermediate layer made of heat-resistant ceramics containing boron nitride as a main component is interposed between contact surfaces of the screw of the cylindrical base portion and the screw of the metal pipe portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6197838A JP2996381B2 (en) | 1994-07-29 | 1994-07-29 | Flame holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6197838A JP2996381B2 (en) | 1994-07-29 | 1994-07-29 | Flame holder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0842850A true JPH0842850A (en) | 1996-02-16 |
| JP2996381B2 JP2996381B2 (en) | 1999-12-27 |
Family
ID=16381188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6197838A Expired - Fee Related JP2996381B2 (en) | 1994-07-29 | 1994-07-29 | Flame holder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2996381B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011094603A (en) * | 2009-09-30 | 2011-05-12 | Ihi Corp | Ignition device |
| JP2013238243A (en) * | 2009-09-30 | 2013-11-28 | Ihi Corp | Ignition device |
-
1994
- 1994-07-29 JP JP6197838A patent/JP2996381B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011094603A (en) * | 2009-09-30 | 2011-05-12 | Ihi Corp | Ignition device |
| CN102510975A (en) * | 2009-09-30 | 2012-06-20 | 株式会社Ihi | Ignition device |
| KR101309320B1 (en) * | 2009-09-30 | 2013-09-13 | 가부시키가이샤 아이에이치아이 | Ignition device |
| JP2013238243A (en) * | 2009-09-30 | 2013-11-28 | Ihi Corp | Ignition device |
| US9395083B2 (en) | 2009-09-30 | 2016-07-19 | Ihi Corporation | Ignition device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2996381B2 (en) | 1999-12-27 |
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