JPS5928196Y2 - combustion device - Google Patents
combustion deviceInfo
- Publication number
- JPS5928196Y2 JPS5928196Y2 JP5469378U JP5469378U JPS5928196Y2 JP S5928196 Y2 JPS5928196 Y2 JP S5928196Y2 JP 5469378 U JP5469378 U JP 5469378U JP 5469378 U JP5469378 U JP 5469378U JP S5928196 Y2 JPS5928196 Y2 JP S5928196Y2
- Authority
- JP
- Japan
- Prior art keywords
- flame
- pilot burner
- air
- combustion
- combustion device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Control Of Combustion (AREA)
- Pre-Mixing And Non-Premixing Gas Burner (AREA)
- Air Supply (AREA)
Description
【考案の詳細な説明】
本考案は燃焼装置、特に強制気流中でもパイロットバー
ナの炎が安定に維持できるよう構成した燃焼装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a combustion device, and particularly to a combustion device configured such that the flame of a pilot burner can be maintained stably even in forced air flow.
従来の燃焼装置を第1図に示す。A conventional combustion device is shown in FIG.
第1図中、1は燃焼筒、2は熱交換器で、燃焼筒1とに
より密閉した燃焼室3を構成する。In FIG. 1, 1 is a combustion tube, and 2 is a heat exchanger, which together with the combustion tube 1 constitute a sealed combustion chamber 3.
4は燃焼室3に設けた複数の主バーナ、5は主バーナ4
の後方に設けられ燃焼用空気を燃焼室3内へ供給する送
風機、6は燃焼筒1の壁面を外方に凸して形成されたパ
イロットバーナ室、7は主バーナ4着火用のパイロット
バーナ、8は点火プラグ、9は炎電極、10はパイロッ
トバーナ7に連通した燃料供給パイプ、11は送風機5
とパイロットバーナ室6とを連通し該バーナ室6へ燃焼
用空気を供給するための空気供給用パイプ、12はパイ
ロットバーナ7に設けられた一次空気の吸込口、13は
パイロットバーナの炎口である。4 is a plurality of main burners provided in the combustion chamber 3; 5 is a main burner 4;
a blower provided at the rear of the combustion chamber 3 to supply combustion air into the combustion chamber 3; 6 a pilot burner chamber formed by protruding the wall surface of the combustion tube 1 outward; 7 a pilot burner for igniting the main burner 4; 8 is a spark plug, 9 is a flame electrode, 10 is a fuel supply pipe connected to the pilot burner 7, 11 is a blower 5
12 is a primary air suction port provided in the pilot burner 7, and 13 is a flame port of the pilot burner. be.
この従来の燃焼装置の場合、パイロットバーナ7の炎が
燃焼室3を流れる強制気流に直接影響を受けない位置に
あるため安定してしる反面、主バーナ4と離れているた
め主バーナ4への着火が行なわれにくい欠点があった。In the case of this conventional combustion device, the flame of the pilot burner 7 is located at a position where it is not directly affected by the forced airflow flowing through the combustion chamber 3, so it is stable, but on the other hand, because it is separated from the main burner 4, it The disadvantage was that it was difficult to ignite the flame.
このため、パイロットバーナ7の位置を上方にずらせば
よいが今度は強制気流の影響を直接受けることになり、
パイロットバーナ7の炎が不安定となるばかりか燃焼速
度が異なり、接地面積が極端に低下する。For this reason, it would be better to shift the position of the pilot burner 7 upwards, but this time it will be directly affected by the forced airflow.
Not only will the flame of the pilot burner 7 become unstable, but the combustion speed will vary, and the ground contact area will be extremely reduced.
そして、炎電流値が内炎と炎電極との接地面積に大きく
左右されるためパイロットバーナ7の炎の有無を確実に
確認できなくなるという問題が生じる。Furthermore, since the flame current value is greatly influenced by the ground area between the inner flame and the flame electrode, a problem arises in that it is not possible to reliably confirm the presence or absence of the flame in the pilot burner 7.
また、パイロットバーナ7へ供給される燃焼用空気の流
速が速いため、更に該バーナ7の燃焼を不安定なものに
していた。Furthermore, since the flow rate of the combustion air supplied to the pilot burner 7 was high, the combustion in the burner 7 was further made unstable.
筐た、このような要求にある程度答え得るものとして実
開昭52−166142号公報記載のものがある。However, there is a method described in Japanese Unexamined Utility Model Publication No. 166142/1983 that can meet these demands to some extent.
この従来方法によれば、口火バーナ管の先端に燃焼炎安
定コイルを直接接続して該コイルの先方に臨1せてフレ
ームロンドを設けている。According to this conventional method, a combustion flame stabilizing coil is directly connected to the tip of the pilot burner tube, and a flame iron is provided facing forward of the coil.
しかしながらかかる構成によると、燃焼炎安定コイルは
燃焼炎により加熱され、同時に口火バーす管に熱が伝導
して高温となり逆火が発生したり、或いは口火バーナ管
の耐久性低下につながることが考えられる。However, with such a configuration, the combustion flame stabilizing coil is heated by the combustion flame, and at the same time, heat is conducted to the pilot burner tube, resulting in a high temperature that may cause backfire or reduce the durability of the pilot burner tube. It will be done.
本考案は上記の点に鑑みて威されたもので、主バーナへ
の着火を容易にし、かつ強制気流中でもパイロットバー
ナの炎が安定するように、また、パイロットバーナ内で
の逆火の発生等を防止するように構成した燃焼装置を提
供するものである。The present invention was developed in view of the above points, and is designed to facilitate ignition of the main burner, stabilize the flame of the pilot burner even in forced air flow, and prevent backfire from occurring within the pilot burner. The present invention provides a combustion device configured to prevent this.
以下、本考案の実施例を図面に基づいて説明する。Hereinafter, embodiments of the present invention will be described based on the drawings.
第2図は本実施例による燃焼装置を示す。FIG. 2 shows a combustion device according to this embodiment.
尚、第1図と同一要素には同一符号を付して説明を省略
する。Incidentally, the same elements as in FIG. 1 are given the same reference numerals and their explanations will be omitted.
第2図中、14はパイロットバーナ7の炎口が燃焼筒1
壁面と略水平位置となるよう底部を浅く構成したパイロ
ットバーナ室、15はパイロットバーナ7の空気吸込口
12側と炎口13側とを仕切る仕切板で、貫通するパイ
ロットバーナ7の周囲に2次空気の流通孔15aを有す
る。In Figure 2, 14 indicates that the flame port of the pilot burner 7 is the combustion tube 1.
The pilot burner chamber has a shallow bottom so that it is approximately horizontal with the wall surface, and 15 is a partition plate that partitions the air suction port 12 side and the flame port 13 side of the pilot burner 7. It has air circulation holes 15a.
16は空気供給パイプ11の前方に該パイプ11に対面
して設けられたプレート、17は炎口13上方にパイロ
ットバーナ7以外の支持部材に支持させて臨斗せた保炎
棒である。16 is a plate provided in front of the air supply pipe 11 facing the pipe 11, and 17 is a flame holding rod supported by a supporting member other than the pilot burner 7 above the flame port 13.
かかる構成による燃焼装置では、空気供給パイプ11か
ら供給される空気は第3図中矢印に示す如くプレート1
6に1度当たりその流速が弱められると共にその方向を
変・えてパイロットバーナ7へその一部が供給される。In the combustion device having such a configuration, the air supplied from the air supply pipe 11 passes through the plate 1 as shown by the arrow in FIG.
6, its flow velocity is weakened and its direction is changed and a part of it is supplied to the pilot burner 7.
このため、パイロットバーナ7の必要とする一次空気が
そのエゼクタにより充分に供給され、残りの空気は2次
空気として流通孔15aから上方へ向う。Therefore, the primary air required by the pilot burner 7 is sufficiently supplied by its ejector, and the remaining air flows upward from the communication hole 15a as secondary air.
また、パイロットバーナTの炎中には保炎棒1Tが臨ん
でおり燃焼室3を流れる強制気流の影響を軽減している
。Further, a flame stabilizing rod 1T faces the flame of the pilot burner T to reduce the influence of the forced airflow flowing through the combustion chamber 3.
従って、燃焼速度が安定すると共に強制気流の影響が軽
減され、パイロットバーナ7の炎が安定して内炎と炎電
極9との接地面積が安定するので、炎の存在時に炎電流
値が低下せず確実に炎の有無を確認することができる。Therefore, the combustion speed is stabilized, the influence of forced airflow is reduced, the flame of the pilot burner 7 is stabilized, and the ground area between the inner flame and the flame electrode 9 is stabilized, so the flame current value does not decrease when the flame is present. The presence or absence of flame can be confirmed without fail.
しかも、主バーナ4とパイロットバーナ7との距離が接
近しているので、主バーナ4の着火が確実に行なえる。Furthermore, since the main burner 4 and the pilot burner 7 are close to each other, the main burner 4 can be reliably ignited.
また、保炎棒17をパイロットバーナ7の炎口13上方
にパイロットバーナ7以外の支持部材に支持させて臨筐
せたので、保炎棒17が加熱されてもパイロットバーナ
1への熱伝導を防止でき、該パイロットバーナ7内での
逆火の発生及び耐久性の低下を防止できる。In addition, since the flame holding rod 17 is mounted above the flame opening 13 of the pilot burner 7 while being supported by a supporting member other than the pilot burner 7, even if the flame holding rod 17 is heated, heat conduction to the pilot burner 1 is prevented. This can prevent backfire from occurring within the pilot burner 7 and reduce durability.
第4図ないし第6図は別の実施例を示しである。4 to 6 show another embodiment.
第4図は/\状に形成したプレート18の頂上部を空気
供給パイプ11に対向させたものである。In FIG. 4, the top of the plate 18 formed in the shape of /\ is opposed to the air supply pipe 11.
このものは図中矢印の如く空気流が左右に分かれて流れ
るため2次空気がパイロットバーナ7の周囲に沿って略
均等に上方へ向う。In this case, the air flow is divided into left and right sides as shown by the arrows in the figure, so that the secondary air flows upward almost uniformly around the pilot burner 7.
第5図は空気供給パイプ11の開口部に整流網19を取
り付けて整流効果を持たせている。In FIG. 5, a rectifying net 19 is attached to the opening of the air supply pipe 11 to provide a rectifying effect.
更に、第6図は周囲の絶縁体(碍子)の径を太く形成し
た炎電極9′を空気供給パイプ11の前面に配置して空
気流の流れを弱めるようにしたもので、第4図及び第5
図と同様に空気流は左右に分かれて流れる。Furthermore, FIG. 6 shows a flame electrode 9' with a surrounding insulator formed with a large diameter, which is placed in front of the air supply pipe 11 to weaken the air flow. Fifth
As shown in the figure, the airflow is divided into left and right sides.
以上、述べたように本考案によれば、強制気流中におい
てもパイロットバーナの炎を安定に維持することができ
、従って、炎電流値が安定し炎の有無を確実に検知する
ことができる。As described above, according to the present invention, the flame of the pilot burner can be maintained stably even during forced airflow, so that the flame current value is stabilized and the presence or absence of a flame can be reliably detected.
また、主バーナへの着火も従来より確実で、しかも、保
炎棒をパイロットバーナの炎口上方にパイロットバーナ
以外の支持部材に支持させて臨1せたので、保炎棒が加
熱されてもパイロットバーナへの熱伝導を防止でき、パ
イロットバーナ内での逆火の発生及び耐久性の低下を防
止した燃焼装置を提供することができる。In addition, ignition of the main burner is more reliable than before, and since the flame-holding rod is placed above the pilot burner's flame opening and supported by a support member other than the pilot burner, even if the flame-holding rod is heated. It is possible to provide a combustion device that can prevent heat conduction to the pilot burner, prevent backfire from occurring within the pilot burner, and prevent a decrease in durability.
第1図は従来の燃焼装置の燃焼部を示す簡略図、第2図
は本考案に係る燃焼装置の燃焼部の1実施例を示す簡略
図、第3図は第2図A−A線矢視断面図、第4図ないし
第6図はパイロットバーナ室のそれぞれ別の実施例を示
す。
3・・・燃焼室、4・・・主バーナ、5・・・送風機、
7・・・パイロットバーナ、9・・・炎電極、11・・
・空気供給パイプ、14・・・パイロットバーナ室、1
5・・・仕切板、16.18・・・プレート、19・・
・整流網。FIG. 1 is a simplified diagram showing the combustion section of a conventional combustion device, FIG. 2 is a simplified diagram showing one embodiment of the combustion section of the combustion device according to the present invention, and FIG. The sectional views of FIGS. 4 to 6 show different embodiments of the pilot burner chamber. 3... Combustion chamber, 4... Main burner, 5... Blower,
7... Pilot burner, 9... Flame electrode, 11...
・Air supply pipe, 14...Pilot burner chamber, 1
5... Partition plate, 16.18... Plate, 19...
- Rectifier network.
Claims (3)
に臨1せて配設したパイロットバーナを備えた燃焼装置
において、前記パイロットバーナの炎口上方にパイロッ
トバーナ以外の支持部材に保炎棒を支持させて臨1せる
と共に、該パイロットバーナへ前記送風機より導く空気
の通路に空気流の流速を低下させるよう障害となる部材
を配設する一方、空気流通用の孔を有する仕切板でパイ
ロットバーナの空気吸入側と炎口側とを仕切るよう構成
したことを特徴とする燃焼装置。(1) In a combustion apparatus equipped with a pilot burner arranged facing a combustion chamber which has a main burner and is supplied with air from a blower, a flame holding member other than the pilot burner is placed above the flame opening of the pilot burner to hold the flame. At the same time, a member is provided as an obstacle to reduce the flow velocity of the air flow in the passage of air guided from the blower to the pilot burner, and a partition plate having holes for air circulation is provided. A combustion device characterized in that the air intake side and the flame port side of a pilot burner are partitioned.
て設置されたプレートである実用新案登録請求の範囲第
1項記載の燃焼装置。(2) The combustion device according to claim 1, wherein the obstructing member is a plate installed facing the opening of the air passage.
した炎電極である実用新案登録請求の範囲第1項記載の
燃焼装置。(3) The combustion device according to claim 1, wherein the obstructing member is a flame electrode with a surrounding insulator having a larger diameter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5469378U JPS5928196Y2 (en) | 1978-04-25 | 1978-04-25 | combustion device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5469378U JPS5928196Y2 (en) | 1978-04-25 | 1978-04-25 | combustion device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54156835U JPS54156835U (en) | 1979-10-31 |
JPS5928196Y2 true JPS5928196Y2 (en) | 1984-08-15 |
Family
ID=28949601
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5469378U Expired JPS5928196Y2 (en) | 1978-04-25 | 1978-04-25 | combustion device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5928196Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60194233A (en) * | 1984-03-15 | 1985-10-02 | Mitsubishi Electric Corp | Combustion device |
-
1978
- 1978-04-25 JP JP5469378U patent/JPS5928196Y2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS54156835U (en) | 1979-10-31 |
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