JP2578833Y2 - Burner chamber of combustion equipment - Google Patents
Burner chamber of combustion equipmentInfo
- Publication number
- JP2578833Y2 JP2578833Y2 JP1992031454U JP3145492U JP2578833Y2 JP 2578833 Y2 JP2578833 Y2 JP 2578833Y2 JP 1992031454 U JP1992031454 U JP 1992031454U JP 3145492 U JP3145492 U JP 3145492U JP 2578833 Y2 JP2578833 Y2 JP 2578833Y2
- Authority
- JP
- Japan
- Prior art keywords
- burner
- chamber
- burner chamber
- combustion
- flame
- 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 - Lifetime
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Description
【０００１】[0001]
【産業上の利用分野】本考案は、給湯機や給湯付き風呂
釜に用いる燃焼装置のバーナ室に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a burner room of a combustion device used for a water heater or a hot-water bath.
【０００２】[0002]
【従来の技術】一般的な燃焼装置の構造を図１０(ａ)の
正面図と(ｂ)の側面図に示す。また図１１にそのバーナ
室３の斜視図を示す。この燃焼装置は、複数のバーナ１
と、バーナ１を高さ方向で同一位置にかつ幅方向で同一
ピッチに収納するためのバーナ室３、送風機４、燃焼室
５、熱交換器６及び排気室７で構成されている。燃料ガ
ス１０は、各バーナ１に対応したノズル８からバーナ１
の内部へ噴射され、燃焼用空気は送風機４から供給され
る。燃焼用空気の一部は、一次空気１１として燃料ガス
１０と共にバーナ１の内部へ流入し、バーナ１の内部で
混合した後、予混合ガス１３となってバーナ１の炎口部
２から噴出し、一次火炎１４を形成する。更にバーナ１
の周囲から供給される二次空気１２により二次火炎１５
が形成されて完全燃焼する。燃焼により発生した高温の
燃焼ガス１６は熱交換器６に入り、ここで被加熱流体１
８を加熱する。温度の低下した燃焼ガス１６は排ガス１
７となり、排気室７から外部へ放出される。なお、９は
ノズルホルダである。2. Description of the Related Art The structure of a general combustion apparatus is shown in a front view of FIG. 10A and a side view of FIG. FIG. 11 is a perspective view of the burner chamber 3. The combustion device includes a plurality of burners 1
And a burner chamber 3, a blower 4, a combustion chamber 5, a heat exchanger 6, and an exhaust chamber 7 for storing the burners 1 at the same position in the height direction and at the same pitch in the width direction. The fuel gas 10 is supplied from the nozzle 8 corresponding to each burner 1 to the burner 1.
And the combustion air is supplied from the blower 4. Part of the combustion air flows into the burner 1 together with the fuel gas 10 as primary air 11 and mixes inside the burner 1, and then becomes premixed gas 13 and is ejected from the flame opening 2 of the burner 1. , A primary flame 14 is formed. Burner 1
Flame 15 by the secondary air 12 supplied from around the
Is formed and completely combusted. The high-temperature combustion gas 16 generated by the combustion enters the heat exchanger 6, where the heated fluid 1
Heat 8 The combustion gas 16 whose temperature has dropped is the exhaust gas 1
7 and is discharged from the exhaust chamber 7 to the outside. In addition, 9 is a nozzle holder.
【０００３】[0003]
【考案が解決しようとする課題】このような燃焼装置で
は、燃料ガス１０の量を変化させた場合、送風機４から
供給される燃焼用空気も変化するようになっている。こ
のとき燃料ガス１０の変化量に対して、バーナ１の内部
へ流入する燃焼用空気の一部である一次空気１１の変化
量が大きくなる場合、特に一次空気１１の量が燃料ガス
１０に対する適正量よりも多くなった場合に、共鳴音が
発生する。この共鳴音が発生したときの騒音スペクトル
を図１３に示す。共鳴音が発生した場合には図に示すよ
うにｆ1、ｆ2のような卓越周波数が現われ、使用者や隣
人に不快感を与える。In such a combustion apparatus, when the amount of the fuel gas 10 is changed, the combustion air supplied from the blower 4 is also changed. At this time, when the amount of change of the primary air 11 which is a part of the combustion air flowing into the burner 1 becomes large with respect to the amount of change of the fuel gas 10, particularly, the amount of the primary air 11 is appropriate for the fuel gas 10. When the amount exceeds the amount, a resonance sound is generated. FIG. 13 shows a noise spectrum when this resonance sound is generated. When a resonance sound is generated, dominant frequencies such as f 1 and f 2 appear as shown in the figure, giving a discomfort to the user and the neighbor.
【０００４】そのため、従来よりこの共鳴音に対して
は、一次空気１１の量が燃料ガス１０の量に対する適正
量より過剰にならないよう、燃焼用空気の量を制御して
いた。このことは、排気室７から排出される燃焼ガス１
６の成分中に有害ガスである一酸化炭素（ＣＯ）を多く
することにつながり、環境問題上好ましくない。また、
燃焼用空気の量を減らすことは、送風機４から供給され
る空気の圧力を減らすことにもなるので、装置を屋外等
の風の吹く場所に設置したときは、風の圧力が排気室７
にかかり、送風機４から供給される空気の圧力より大き
い場合、つまり強い風の吹いた場合などに消火すること
もある。また、これらのことに対して共鳴音を発生しな
い構造のバーナを考案することも容易ではなく、そのよ
うな技術も確立されていないのが現状である。For this reason, the amount of combustion air has been conventionally controlled so that the amount of primary air 11 does not exceed the amount appropriate for the amount of fuel gas 10 with respect to this resonance sound. This means that the combustion gas 1 discharged from the exhaust chamber 7
This leads to an increase in carbon monoxide (CO), which is a harmful gas, in the component No. 6, which is not preferable in terms of environmental problems. Also,
Since reducing the amount of combustion air also reduces the pressure of the air supplied from the blower 4, when the device is installed in a place where the wind blows, such as outdoors, the pressure of the wind decreases in the exhaust chamber 7.
The fire may be extinguished when the pressure is higher than the pressure of the air supplied from the blower 4, that is, when a strong wind blows. In addition, it is not easy to devise a burner having a structure that does not generate a resonance sound, and at present, such a technique has not been established.
【０００５】そこで、先ずこの共鳴音発生機構を明らか
にするため、燃焼装置の各部に圧力センサを取り付け共
鳴音発生時の圧力変動の分布を調査した。その結果は図
１４のようになり、バーナ室３の幅方向の両端側壁に、
圧力変動の最も大きい部分つまり圧力波の腹となる１／
２波長の定在波が生じていることが判った。また、バー
ナ室３の奥行き方向に対してはこの圧力変動の分布はな
いことも確認された。これは、図９の模式図に示すよう
に、バーナ１における火炎は一次火炎１４及び二次火炎
１５で成っているが、火炎形状は主に一次火炎１４が一
次空気１１、二次火炎１５が二次空気１２の影響を受け
る。先に述べたように、この共鳴音は燃料ガス１０に対
する一次空気１１の量が、適正量よりも多くなった場合
に発生する現象であり、一次空気１１が多くなると一次
火炎１４は流体的な乱れの増加等により火炎が変動し易
くなる。このときこの火炎の変動に起因する圧力変動３
１が生じ、バーナ室側壁部３ａに矢印３２のように伝搬
され、圧力変動が３３のように励起される。この圧力変
動はバーナ室側壁部で反射され、矢印３４のように再び
火炎にフィードバックされることにより、火炎の変動を
増大するという機構で圧力変動が増幅され、共鳴音が発
生するという現象が明らかとなった。本考案は、このよ
うな現象解析に基づいて、この共鳴音を簡単にしかも確
実に防止できる燃焼装置のバーナ室構造を提供するもの
である。Therefore, in order to clarify the resonance sound generating mechanism, pressure sensors were attached to various parts of the combustion apparatus, and the distribution of the pressure fluctuation when the resonance sound was generated was investigated. The result is as shown in FIG. 14, and the side walls at both ends in the width direction of the burner chamber 3
The largest part of pressure fluctuation, that is, the antinode of pressure wave 1 /
It was found that two wavelength standing waves were generated. It was also confirmed that there was no distribution of this pressure fluctuation in the depth direction of the burner chamber 3. This is because, as shown in the schematic diagram of FIG. 9, the flame in the burner 1 is composed of a primary flame 14 and a secondary flame 15, but the flame shape is mainly such that the primary flame 14 is composed of the primary air 11 and the secondary flame 15. It is affected by the secondary air 12. As described above, this resonance sound is a phenomenon that occurs when the amount of the primary air 11 with respect to the fuel gas 10 becomes larger than an appropriate amount. When the amount of the primary air 11 increases, the primary flame 14 becomes fluid. The flame tends to fluctuate due to increased turbulence and the like. At this time, the pressure fluctuation 3 caused by the fluctuation of the flame 3
1 is generated and propagated to the burner chamber side wall 3 a as indicated by an arrow 32, and the pressure fluctuation is excited as indicated by 33. This pressure fluctuation is reflected on the side wall of the burner chamber, and is fed back to the flame again as indicated by an arrow 34, whereby the pressure fluctuation is amplified by a mechanism that increases the fluctuation of the flame, and the phenomenon that resonance occurs is apparent. It became. The present invention provides a burner chamber structure of a combustion apparatus that can easily and surely prevent the resonance sound based on such a phenomenon analysis.
【０００６】[0006]
【課題を解決するための手段】本考案は、バーナとその
バーナを収納するバーナ室、送風機、燃焼室、熱交換器
及び排気室で構成される燃焼装置において、バーナ室
内の幅方向の側壁に沿って逆Ｌ字形又はコの字形の間仕
切板を、その上端面がバーナの炎口付近の高さとなるよ
うに、かつ間仕切板の奥行方向側端及び／又は下端にバ
ーナ室との隙間を持つように設けた燃焼装置のバーナ
室、バーナ室の幅方向の側壁部分に、バーナ室内に開
口部を有する箱体を設けた燃焼装置のバーナ室並びに
バーナ室内の幅方向の側壁に吸音材を配設した燃焼装置
のバーナ室に関する。SUMMARY OF THE INVENTION The present invention relates to a combustion apparatus comprising a burner and a burner chamber for accommodating the burner, a blower, a combustion chamber, a heat exchanger and an exhaust chamber. Along the inverted L-shaped or U-shaped partition plate, the upper end face thereof is at a height near the burner opening of the burner, and the partition plate has a gap with the burner chamber at the end in the depth direction and / or at the lower end. In the burner chamber of the combustion device provided as described above, a sound absorbing material is disposed in the burner chamber of the combustion device in which a box having an opening in the burner chamber is provided in the width side wall portion of the burner chamber and in the width direction side wall of the burner chamber. The present invention relates to a burner chamber of an installed combustion device.
【０００７】請求項１の考案を図１を基に説明する。燃
焼装置の基本構成は図１０と同様である。図１は、バー
ナ室３とその室内の幅方向の側壁に沿って設ける逆Ｌ字
形の間仕切板１９の要部構造を示すものであり、(ａ)は
斜視図、(ｂ)は側面図、(ｃ)は１部正面図及び(ｄ)は１
部上面図である。図において逆Ｌ字形の間仕切板１９の
下端及び奥行き方向の両側端に、バーナ室３との隙間ｄ
1(側端)及びｄ2(下端)を設けて取り付けた構造になって
いる。隙間の設けかたは下端だけでもよく、側端だけで
もよい。側端部の隙間は片側だけに設けてもよい。Ｌ字
の挾み角θは直角に制限されず、取付け可能な角度であ
ればよい。図２は間仕切板２０の両側端だけに隙間ｄ1
を設け、下端はバーナ室３の底面に達している例であ
る。一方、間仕切板の形状として図３に示すようなコの
字形の間仕切板２１でも同様の効果を有する。なお、コ
の字の挾み角も直角に制限されない。The invention of claim 1 will be described with reference to FIG. The basic configuration of the combustion device is the same as in FIG. FIGS. 1A and 1B show a main structure of a burner chamber 3 and an inverted L-shaped partition plate 19 provided along a side wall in a width direction of the burner chamber. FIG. 1A is a perspective view, FIG. (c) is a front view of one copy, and (d) is 1
FIG. In the figure, a gap d with the burner chamber 3 is provided at the lower end of the inverted L-shaped partition plate 19 and at both ends in the depth direction.
1 (side end) and d 2 (lower end) are provided and attached. The way of providing the gap may be only the lower end or only the side end. The gap at the side end may be provided on only one side. Is not limited to a right angle, but may be any angle as long as it can be attached. FIG. 2 shows a gap d 1 only at both ends of the partition plate 20.
In this example, the lower end reaches the bottom surface of the burner chamber 3. On the other hand, a U-shaped partition plate 21 as shown in FIG. 3 has the same effect as the shape of the partition plate. The angle between the U-shaped characters is not limited to a right angle.
【０００８】間仕切板は、上端面位置がバーナ１の炎口
部２の高さに対して、炎口部の下方からその距離ｓ＝３
０mm以上の位置にあると（炎口部の上方になってもよ
い）効果があり好ましい。また、間仕切板はバーナ室３
内の幅方向の側壁に沿って取付けるが、側壁と間仕切板
の側壁に沿う部分との距離ｔは１０mm以上が望ましく、
それよりも距離が短いと効果が薄れる。また、間仕切板
は必ずしも側壁に平行である必要はなく、傾斜して取付
けてもよい。更に、間仕切板の材質は問わないが火炎近
傍なので鋼板等が良い。なお、間仕切板はバーナ室３の
幅方向の両側壁に設けることが望ましいが、片側壁にだ
け設けてもある程度の効果は得られる。[0008] The partition plate has an upper end surface whose distance s = 3 from the lower side of the flame port with respect to the height of the flame port 2 of the burner 1.
It is preferable to be at a position of 0 mm or more (the effect may be above the flame opening). In addition, the partition plate is burner room 3
It is attached along the side wall in the width direction inside, but the distance t between the side wall and the portion along the side wall of the partition plate is desirably 10 mm or more,
If the distance is shorter than that, the effect is diminished. Further, the partition plate does not necessarily have to be parallel to the side wall, and may be attached at an angle. Further, the material of the partition plate is not limited, but a steel plate or the like is preferable because it is near the flame. The partition plates are preferably provided on both side walls in the width direction of the burner chamber 3, but some effects can be obtained even if provided on only one side wall.
【０００９】請求項２の考案を図４をもとに説明する。
燃焼装置の基本構成は図１０と同様である。図４は、バ
ーナ室３の内壁に、バーナ室３の内部に開口部を有する
半密閉空間を形成するための箱体２２を設けたバーナ室
３の要部構造を示すものである。箱体２２には開口部２
３を設けてある。但し開口部の形状はこのような四角形
や丸形に限定されない。また、図５に示すように、開口
部２５を箱体２４の上面に設けるようにしてもよい。箱
体は図４や図５のほか、図６のようにバーナ室３の底部
との間に空間を設けて取付けてもよい。図６の場合、開
口部２７は箱体２６の下面に設けてもよい。よって開口
部同士の組合せと箱体との形状の組合せにより多種の構
造が考えられる。また、図７に示すように、バーナ室３
の側壁の外側に箱体２８を設け、バーナ室３の側壁に開
口部２９を有する構造としても同様の効果を得る。The invention of claim 2 will be described with reference to FIG.
The basic configuration of the combustion device is the same as in FIG. FIG. 4 shows a main structure of the burner chamber 3 in which a box 22 for forming a semi-closed space having an opening inside the burner chamber 3 is provided on the inner wall of the burner chamber 3. The opening 2 is provided in the box 22.
3 is provided. However, the shape of the opening is not limited to such a square or round shape. Further, as shown in FIG. 5, the opening 25 may be provided on the upper surface of the box 24. The box may be attached by providing a space between the box and the bottom of the burner chamber 3 as shown in FIG. In the case of FIG. 6, the opening 27 may be provided on the lower surface of the box 26. Therefore, various types of structures can be considered depending on the combination of the openings and the shape of the box. Further, as shown in FIG.
The same effect can be obtained by providing a box 28 outside the side wall of the burner chamber 3 and having an opening 29 in the side wall of the burner chamber 3.
【００１０】箱体は、上面位置がバーナ１の炎口部２の
高さに対して、炎口部の下方から３０mm以上の位置にあ
ると（炎口部の上方になってもよい）効果があり好まし
く、その位置以外であると効果は薄れてくる。また、箱
体により形成された半密閉空間の厚さは１０mm以上で効
果が優れ、１０mm未満では効果が薄れてくる。更に箱体
を形成するためには、バーナ室３の側壁自体を箱体の壁
として利用することも可能である。更に、この箱体はバ
ーナ室３の幅方向の対向する両側壁に設けることが望ま
しいが、片側壁にだけ設けてもある程度の効果は得られ
る。When the upper surface of the box is located at a position 30 mm or more from the lower side of the flame port with respect to the height of the flame port 2 of the burner 1, the effect may be provided above the flame port. However, if the position is other than that position, the effect is weakened. The effect is excellent when the thickness of the semi-enclosed space formed by the box is 10 mm or more, and the effect is weak when the thickness is less than 10 mm. Further, in order to form a box, the side wall itself of the burner chamber 3 can be used as a wall of the box. Further, it is desirable that this box be provided on both opposing side walls in the width direction of the burner chamber 3, but if it is provided only on one side wall, a certain effect can be obtained.
【００１１】請求項３の考案を図８をもとに説明する。
燃焼装置の基本構成は図１０と同様である。図８は、バ
ーナ室３とその側壁に設けた吸音材３０の要部構造を示
すものである。図８では、バーナ室３の側壁に一定の厚
さと吸音に有効な面積を持つ吸音材３０を取付けた構造
になっている。吸音材は、上面位置がバーナ１の炎口部
２の高さに対して、炎口部の下方から３０mm以上の位置
にあると（炎口部の上方になってもよい）効果があり好
ましい。奥行方向については、バーナ室３の前面から後
面まであればよいが、前後面において隙間はあってもよ
い。吸音材の厚さは１０mm以上が好ましく、それ以下で
は効果が薄れてくる。また、吸音材の材質は火炎近傍な
ので難燃性のガラス繊維、セラミツク繊維等を固めて板
状にしたもの、板状の金属の発泡体などが用いられる。
更に、この吸音材はバーナ室３の幅方向の対向する両側
壁に、又はバーナ室全体を包むように設けることが好ま
しい。片側の壁だけに設けてもある程度の効果は得られ
る。The invention of claim 3 will be described with reference to FIG.
The basic configuration of the combustion device is the same as in FIG. FIG. 8 shows the main structure of the burner chamber 3 and the sound absorbing material 30 provided on the side wall thereof. FIG. 8 shows a structure in which a sound absorbing material 30 having a constant thickness and an area effective for sound absorption is attached to the side wall of the burner chamber 3. The sound-absorbing material has an effect (it may be above the flame port) when the upper surface position is at least 30 mm from the lower side of the flame port with respect to the height of the flame port 2 of the burner 1. . In the depth direction, the burner chamber 3 may be provided from the front surface to the rear surface, but a gap may be provided between the front and rear surfaces. The thickness of the sound absorbing material is preferably not less than 10 mm, and the effect is weakened below that. Further, since the material of the sound absorbing material is near the flame, flame-retardant glass fiber, ceramic fiber, or the like is solidified into a plate shape, and a plate-like metal foam is used.
Further, it is preferable that the sound absorbing material be provided on both side walls of the burner chamber 3 facing each other in the width direction or so as to cover the entire burner chamber. Some effect can be obtained even if it is provided only on one side wall.
【００１２】[0012]
【作用】本考案では、バーナ１の火炎により励起された
圧力変動は、バーナ室３の幅方向の両側壁において最も
変動し易いので、バーナ室３内の幅方向の側壁に逆Ｌ字
形もしくはコの字形の間仕切板を設けて、側壁と間仕切
板とで形成される空間により圧力変動を抑制するか、バ
ーナ室３に開口部を有する箱体を設けて、そこに形成さ
れる半密閉状の空間により圧力変動を抑制するか、又は
バーナ室３の内壁に吸音材を設置して圧力変動を抑制
し、更には火炎へのフィードバックを防止するものであ
る。According to the present invention, since the pressure fluctuation excited by the flame of the burner 1 is most likely to fluctuate on both side walls in the width direction of the burner chamber 3, an inverted L-shape or co-shaped is formed on the width side wall in the burner chamber 3. Or a space formed by the side wall and the partition plate to suppress the pressure fluctuation, or by providing a box body having an opening in the burner chamber 3 and forming a semi-hermetic shape formed therein. The pressure fluctuation is suppressed by the space, or a sound absorbing material is installed on the inner wall of the burner chamber 3 to suppress the pressure fluctuation, and further, to prevent feedback to the flame.
【００１３】[0013]
【実施例】次に本考案の実施例を説明する。Next, an embodiment of the present invention will be described.
【００１４】実施例１ バーナ室内の幅方向の対向する側壁に、図２に示すよう
に両側端だけにｄ1が各５mmの隙間を設けて、高さＨ＝
１２０mm、幅Ｗ＝１４０mmの逆Ｌ字形の間仕切板を側壁
からｔ＝１５mmの距離に取り付け、被加熱流体を水とし
て、燃焼装置は図１０に示す構成のものとして組み立
て、外装で囲んで給湯機を製作した。なお間仕切板の上
端面はバーナの炎口部の上方に配し、その距離ｓは２０
mmとした。この給湯機の燃焼装置から放出される騒音ス
ペクトルを測定した結果、図１２に示すように平坦であ
り、卓越周波数は認められなかった。[0014] opposite side walls in the width direction of the Example 1 burner chamber, is d 1 only at both side ends as shown in FIG. 2 by a gap of each 5 mm, height H =
An inverted L-shaped partition plate having a width of 120 mm and a width of W = 140 mm was attached at a distance of t = 15 mm from the side wall, and the fluid to be heated was water, and the combustion device was assembled as shown in FIG. Was made. The upper end face of the partition plate is arranged above the burner port of the burner, and the distance s is 20 mm.
mm. As a result of measuring the noise spectrum emitted from the combustion device of this water heater, the spectrum was flat as shown in FIG. 12, and no dominant frequency was recognized.
【００１５】実施例２ バーナ室内の幅方向の対向する側壁に、図３に示すよう
に両側端及び下端に隙間（ｄ1が各５mm、ｄ2が３０mm）
を設けて、Ｈ＝１００mm、Ｗ＝１４０mmのコの字形の間
仕切板を側壁からｔ＝１５mmの距離に取り付け、このバ
ーナ室を有し、被加熱流体を水とする図１０の構成の燃
焼装置を２台並べ、外装で囲んで給湯付き風呂釜を組み
立てた。なお、間仕切板の上端面の位置は実施例１と同
様にバーナの炎口部の上方にｓ＝２０mmとした。[0015] opposite side walls in the width direction of the Example 2 burner chamber, two side and bottom in the gap (d 1 each 5 mm, d 2 is 30 mm) as shown in FIG. 3
And a U-shaped partition plate of H = 100 mm and W = 140 mm is attached at a distance of t = 15 mm from the side wall. The burner has a burner chamber and uses a fluid to be heated as water. Were placed side by side, and a bath kettle with hot water was enclosed by the exterior. The position of the upper end surface of the partition plate was set to s = 20 mm above the burner port of the burner, as in the first embodiment.
【００１６】実施例３ バーナ室内の幅方向の対向する側壁に、図４に示すよう
にｄ3＝１０mm、ｄ4＝１００mmの長方形の開口部２３を
３箇所設けた高さＨ＝１２０mm、幅Ｗ＝１６０mm、厚さ
ｔ＝１５mmの箱体２２を取付け、被加熱流体を水とし
て、燃焼装置は図１０に示す構成のものとして組み立
て、外装で囲んで給湯機を製作した。なお、箱体の上端
面はバーナの炎口部の上方３０mmの位置とした。Embodiment 3 As shown in FIG. 4, three rectangular openings 23 of d 3 = 10 mm and d 4 = 100 mm are provided on opposing side walls in the width direction of the burner chamber. A box 22 having W = 160 mm and thickness t = 15 mm was attached, and the fluid to be heated was water. The combustion apparatus was assembled as shown in FIG. The upper end face of the box was positioned 30 mm above the burner port of the burner.
【００１７】実施例４ バーナ室内の幅方向の対向する側壁に、図５に示すよう
に高さＨ＝１２０mm、幅Ｗ＝１６０mm、厚さｔ＝１５mm
の箱体２４の上端面にｄ3＝１０mm、ｄ4＝７０mmの開口
部２５を２箇所設けたものを取り付け、このバーナ室を
有し、被加熱流体を水とする図１０の構成の燃焼装置を
２台並べ、外装で囲んで給湯付き風呂釜を組み立てた。
なお、箱体の上端面の位置は実施例３と同様にバーナの
炎口部の上方３０mmの位置とした。Embodiment 4 As shown in FIG. 5, height H = 120 mm, width W = 160 mm, and thickness t = 15 mm on opposite side walls in the burner chamber in the width direction.
10 provided with two openings 25 of d 3 = 10 mm and d 4 = 70 mm at the upper end surface of a box body 24 having this burner chamber and having the configuration of FIG. 10 in which the fluid to be heated is water. Two units were arranged, and a bath kettle with hot water was enclosed by the exterior.
The position of the upper end face of the box was 30 mm above the burner port of the burner as in Example 3.
【００１８】実施例５ バーナ室内の幅方向の対向する側壁に、図８に示すよう
に高さＨ＝１００mm、幅Ｗ＝１６０mm、厚さｔ＝１０mm
のセラミックボードの吸音材３０を取付け、被加熱流体
を水とし、燃焼装置は図１０に示す構成のものとして組
み立て、外装で囲んで給湯機を製作した。なお、吸音材
の上端面はバーナの炎口部の上方３０mmの位置とした。Embodiment 5 As shown in FIG. 8, height H = 100 mm, width W = 160 mm, and thickness t = 10 mm on opposite side walls in the width direction of the burner chamber.
The sound absorbing material 30 of a ceramic board was attached, the fluid to be heated was water, and the combustion device was assembled as shown in FIG. The upper end surface of the sound absorbing material was located 30 mm above the flame opening of the burner.
【００１９】実施例６ バーナ室内の幅方向の対向する側壁に、実施例５の吸音
材と同寸法のグラスウールを取付け、このバーナ室を有
し、被加熱流体を水とする図１０の構成の燃焼装置と、
バーナ室内の幅方向の対向する側壁に、実施例５の吸音
材と同寸法の焼結金属を取付け、このバーナ室を有し、
被加熱流体を水とする図１０の構成の燃焼装置とを２台
並べ、外装で囲んで給湯付き風呂釜を組み立てた。な
お、吸音材の上端面の位置は実施例５と同様にバーナの
炎口部の上方３０mmの位置とした。Embodiment 6 Glass wool having the same dimensions as the sound absorbing material of Embodiment 5 is attached to the widthwise opposing side walls in the burner chamber. The burner chamber is provided, and the fluid to be heated is water as shown in FIG. A combustion device;
A sintered metal having the same dimensions as the sound absorbing material of Example 5 is attached to the widthwise opposed side walls in the burner chamber, and the burner chamber is provided.
Two combustion devices having the configuration shown in FIG. 10 using water as the fluid to be heated were arranged side by side, and a bath kettle with hot water was assembled by being surrounded by an exterior. The position of the upper end surface of the sound absorbing material was 30 mm above the burner port of the burner, as in Example 5.
【００２０】[0020]
【考案の効果】本考案によれば、燃焼装置のバーナ室の
幅方向の側壁に間仕切板を設けたり、バーナ室の幅方向
の側壁部分に開口部を有する箱体を設けたり、又はバー
ナ室内の幅方向の側壁に吸音材を配設したので、バーナ
火炎の変動に起因する圧力変動を抑制し、火炎へのフィ
ードバックをなくし、共鳴音の発生を防止することが出
来る。その結果、燃焼装置から放出される騒音スペクト
ルが平坦となり、騒音による不快感を生じなくなり、共
鳴音対策として非常に有効である。According to the present invention, a partition plate is provided on the side wall in the width direction of the burner chamber of the combustion device, a box having an opening in the side wall portion of the burner chamber in the width direction is provided, or the burner chamber is provided. Since the sound absorbing material is arranged on the side wall in the width direction of the above, it is possible to suppress the pressure fluctuation caused by the fluctuation of the burner flame, to eliminate the feedback to the flame, and to prevent the generation of resonance. As a result, the noise spectrum emitted from the combustion device becomes flat, and the noise does not cause discomfort, which is very effective as a measure against resonance.
【図１】本考案の実施例になる燃焼装置のバーナ室にお
ける間仕切板の取付け方法を説明する図で、（ａ）は斜
視図、（ｂ）は側面図、（ｃ）は正面図及び（ｄ）は上
面図である。FIG. 1 is a view for explaining a method of mounting a partition plate in a burner chamber of a combustion apparatus according to an embodiment of the present invention, wherein (a) is a perspective view, (b) is a side view, (c) is a front view, and (c). d) is a top view.
【図２】本考案の実施例になる燃焼装置のバーナ室にお
ける間仕切板の取付け方法を説明する図で、（ａ）は斜
視図及び（ｂ）は正面図である。FIGS. 2A and 2B are diagrams illustrating a method of attaching a partition plate in a burner chamber of the combustion apparatus according to the embodiment of the present invention, wherein FIG. 2A is a perspective view and FIG.
【図３】本考案の実施例になる燃焼装置のバーナ室にお
ける間仕切板の取付け方法を説明する図で、（ａ）は斜
視図及び（ｂ）は正面図である。3A and 3B are diagrams illustrating a method of attaching a partition plate in a burner chamber of the combustion device according to the embodiment of the present invention, wherein FIG. 3A is a perspective view and FIG.
【図４】本考案の実施例になる燃焼装置のバーナ室にお
ける箱体の取付け方法を説明する斜視図である。FIG. 4 is a perspective view illustrating a method of mounting a box in a burner chamber of the combustion apparatus according to the embodiment of the present invention.
【図５】本考案の実施例になる燃焼装置のバーナ室にお
ける箱体の取付け方法を説明する斜視図である。FIG. 5 is a perspective view illustrating a method of mounting a box in a burner chamber of the combustion apparatus according to the embodiment of the present invention.
【図６】本考案の実施例になる燃焼装置のバーナ室にお
ける箱体の取付け方法を説明する斜視図である。FIG. 6 is a perspective view illustrating a method of mounting a box in a burner chamber of the combustion apparatus according to the embodiment of the present invention.
【図７】本考案の実施例になる燃焼装置のバーナ室にお
ける箱体の取付け方法を説明する斜視図である。FIG. 7 is a perspective view illustrating a method of mounting a box in the burner chamber of the combustion apparatus according to the embodiment of the present invention.
【図８】本考案の実施例になる燃焼装置のバーナ室にお
ける吸音材の取付け方法を説明する斜視図である。FIG. 8 is a perspective view illustrating a method of attaching a sound absorbing material in the burner chamber of the combustion device according to the embodiment of the present invention.
【図９】火炎の変動とバーナ室の側壁の圧力変動との関
係を示す模式図である。FIG. 9 is a schematic diagram showing the relationship between the fluctuation of the flame and the fluctuation of the pressure on the side wall of the burner chamber.
【図１０】一般的な燃焼装置の構造を示す図で、(ａ)は
正面図及び(ｂ)は側面図である。FIGS. 10A and 10B are diagrams showing the structure of a general combustion device, wherein FIG. 10A is a front view and FIG. 10B is a side view.
【図１１】図１０の燃焼装置のバーナ室を示す斜視図で
ある。11 is a perspective view showing a burner chamber of the combustion device of FIG.
【図１２】本考案の実施例になる燃焼装置の騒音スペク
トルを示すグラフである。FIG. 12 is a graph showing a noise spectrum of the combustion device according to the embodiment of the present invention.
【図１３】従来の燃焼装置の騒音スペクトルを示すグラ
フである。FIG. 13 is a graph showing a noise spectrum of a conventional combustion device.
【図１４】従来の燃焼装置におけるバーナ室に対する幅
方向の圧力変動量の分布を示すグラフである。FIG. 14 is a graph showing a distribution of a pressure fluctuation amount in a width direction with respect to a burner chamber in a conventional combustion device.
１…バーナ、２…炎口部、３…バーナ室、４…送風機、
５…燃焼室、６…熱交換器、７…排気室、８…ノズル、
９…ノズルホルダ、１０…燃料ガス、１１…一次空気、
１２…二次空気、１３…予混合ガス、１４…一次火炎、
１５…二次火炎、１６…燃焼ガス、１７…排ガス、１８
…被加熱流体、１９、２０、２１…間仕切板、２２、２
４、２６、２８…箱体、２３、２５、２７、２９…開口
部、３０…吸音材、３１…火炎の変動による圧力変動、
３２…圧力変動伝搬、３３…バーナ室側壁の圧力変動、
３４…火炎にフィードバックされる圧力変動1 burner, 2 flame outlet, 3 burner chamber, 4 blower,
5 combustion chamber, 6 heat exchanger, 7 exhaust chamber, 8 nozzle
9: nozzle holder, 10: fuel gas, 11: primary air,
12 ... secondary air, 13 ... premixed gas, 14 ... primary flame,
15: secondary flame, 16: combustion gas, 17: exhaust gas, 18
... fluid to be heated, 19, 20, 21 ... partition plate, 22, 2
4, 26, 28 ... box, 23, 25, 27, 29 ... opening, 30 ... sound absorbing material, 31 ... pressure fluctuation due to fluctuation of flame,
32: pressure fluctuation propagation, 33: pressure fluctuation on the burner chamber side wall,
34… Pressure fluctuation fed back to flame
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 実開 昭63−97039（ＪＰ，Ｕ) 実公 昭44−12307（ＪＰ，Ｙ１) (58)調査した分野(Int.Cl.6，ＤＢ名) F23L 1/00──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 63-97039 (JP, U) JP-A 44-12307 (JP, Y1) (58) Fields investigated (Int. Cl. 6 , DB name) F23L 1/00
Claims (3)
室、送風機、燃焼室、熱交換器及び排気室で構成される
燃焼装置において、バーナ室内の幅方向の側壁に沿って
逆Ｌ字形又はコの字形の間仕切板を、その上端面がバー
ナの炎口付近の高さとなるように、かつ間仕切板の奥行
き方向側端及び／又は下端にバーナ室との隙間を持つよ
うに設けた燃焼装置のバーナ室。1. A combustion apparatus comprising a burner, a burner chamber for accommodating the burner, a blower, a combustion chamber, a heat exchanger, and an exhaust chamber. A burner for a combustion apparatus, wherein the partition plate is provided such that its upper end surface is at a height near the burner opening of the burner and that there is a gap between the partition plate and the burner chamber at the end and / or lower end in the depth direction. Room.
室、送風機、燃焼室、熱交換器及び排気室で構成される
燃焼装置において、バーナ室の幅方向の側壁部分に、バ
ーナ室内に開口部を有する箱体を設けた燃焼装置のバー
ナ室。2. A combustion apparatus comprising a burner, a burner chamber for accommodating the burner, a blower, a combustion chamber, a heat exchanger, and an exhaust chamber, wherein an opening is formed in a side wall portion of the burner chamber in a width direction. Burner chamber of a combustion device provided with a box body having the same.
室、送風機、燃焼室、熱交換器及び排気室で構成される
燃焼装置において、バーナ室内の幅方向の側壁に吸音材
を配設した燃焼装置のバーナ室。3. A combustion apparatus comprising a burner, a burner chamber for accommodating the burner, a blower, a combustion chamber, a heat exchanger, and an exhaust chamber, wherein a sound absorbing material is disposed on a side wall in a width direction of the burner chamber. Burner room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992031454U JP2578833Y2 (en) | 1992-05-13 | 1992-05-13 | Burner chamber of combustion equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992031454U JP2578833Y2 (en) | 1992-05-13 | 1992-05-13 | Burner chamber of combustion equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0596739U JPH0596739U (en) | 1993-12-27 |
| JP2578833Y2 true JP2578833Y2 (en) | 1998-08-20 |
Family
ID=12331703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1992031454U Expired - Lifetime JP2578833Y2 (en) | 1992-05-13 | 1992-05-13 | Burner chamber of combustion equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2578833Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019070492A (en) | 2017-10-11 | 2019-05-09 | リンナイ株式会社 | Combustion apparatus |
| JP6905914B2 (en) * | 2017-10-24 | 2021-07-21 | リンナイ株式会社 | Combustion device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4412307Y1 (en) * | 1966-08-01 | 1969-05-22 | ||
| JPH0325008Y2 (en) * | 1986-12-11 | 1991-05-30 |
-
1992
- 1992-05-13 JP JP1992031454U patent/JP2578833Y2/en not_active Expired - Lifetime
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| Publication number | Publication date |
|---|---|
| JPH0596739U (en) | 1993-12-27 |
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