JPH0663623B2 - Gas combustion device - Google Patents
Gas combustion deviceInfo
- Publication number
- JPH0663623B2 JPH0663623B2 JP60246677A JP24667785A JPH0663623B2 JP H0663623 B2 JPH0663623 B2 JP H0663623B2 JP 60246677 A JP60246677 A JP 60246677A JP 24667785 A JP24667785 A JP 24667785A JP H0663623 B2 JPH0663623 B2 JP H0663623B2
- Authority
- JP
- Japan
- Prior art keywords
- burner
- mixing chamber
- air
- mixing
- burner body
- 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
Links
- 238000002485 combustion reaction Methods 0.000 title claims description 30
- 239000000446 fuel Substances 0.000 claims description 21
- 230000001737 promoting effect Effects 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Gas Burners (AREA)
Description
【発明の詳細な説明】 （イ）産業上の利用分野 本発明は、給気用送風機から送気される燃焼一次空気と
ガス燃料を混合させた後、その混合ガスをバーナヘッド
より噴出して燃焼させるようにした強制給気式の燃焼装
置に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention mixes combustion primary air sent from an air supply blower with gas fuel, and then jets the mixed gas from a burner head. The present invention relates to a compulsory air supply type combustion device which is designed to burn.
（ロ）従来の技術 此種強制給気式のガス燃焼装置は、給気用の送風機によ
って充分な燃焼空気を得ることができるため、コンパク
トな形状で大きな燃焼量が得られ、特に屋外給排気式の
温風暖戻機の燃焼加熱源として利用価値の高いものであ
り、そして上述の如きガス燃焼装置は実開昭54−143437
号公報にて知られている。ところで、この従来構成のも
のにあっては、バーナ本体内における混合ガスの通路が
炎孔に近ずくにつれて狭くなる為、炎孔より噴出する混
合ガスの噴出速度が速く、燃焼装置が冷えた状態での点
火点に激しい燃焼音を伴ったリフテイング（飛火）現象
が発生し、点火しにくい欠点があった。又、多数の透孔
を設けた混合促進板が炎孔に接近した位置に設けてある
為、各炎孔に均一に混合ガスを送ることができず、燃焼
状態が不均一となる欠点があった。(B) Conventional technology This type of forced air supply type gas combustion device can obtain a sufficient amount of combustion air by an air blower for air supply, so that a large amount of combustion can be obtained in a compact shape, especially for outdoor air supply and exhaust. It has a high utility value as a combustion heat source for a hot air warmer of the type described above, and the gas combustion apparatus as described above has a practical use.
It is known from the official gazette. By the way, in this conventional structure, since the passage of the mixed gas in the burner body becomes narrower as it approaches the flame hole, the ejection speed of the mixed gas ejected from the flame hole is high and the combustion device is in a cool state. There was a drawback that it was difficult to ignite because a lifting phenomenon (flying fire) occurred with a strong burning sound at the ignition point in. Further, since the mixing promotion plate provided with a large number of through holes is provided at a position close to the flame holes, there is a drawback that the mixed gas cannot be uniformly sent to each flame hole and the combustion state becomes uneven. It was
（ハ）発明が解決しようとする問題点 本発明は、上述の実情に鑑みてなされたものであり、点
火時のリフティングを抑制して点火性能を向上させつ
つ、ガス燃料と一次空気との混合を促進させるととも
に、各炎孔に形成される火炎の均一化を図り、さらに、
混合促進板の取り付け構造の簡略化を図ることを目的と
している。(C) Problems to be Solved by the Invention The present invention has been made in view of the above-mentioned circumstances, and is a mixture of gas fuel and primary air while suppressing lifting during ignition to improve ignition performance. And promote the uniformity of the flame formed in each flame hole,
The purpose is to simplify the mounting structure of the mixing promotion plate.
（ニ）問題点を解決するための手段 本発明では、複数個の炎孔を有するバーナヘッドが先端
開口部に設けられた有底円筒状のバーナ本体と、このバ
ーナ本体を貫いて設けられ、二次空気をバーナヘッドの
中央部に供給する二次空気パイプと、バーナ本体にガス
燃料を供給する燃料ノズルと、バーナ本体の周囲の空気
通路に燃焼空気を供給する送風機とを備えたガス燃焼装
置であって、前記バーナ本体はその周壁途中に段部が設
けられ、この段部よりも基部側のバーナ本体内にガス燃
料と一次空気が旋回状に供給される第１混合室が形成さ
れるとともに、段部よりも先端部側のバーナ本体内には
第１混合室より大径で、かつ、容積の大きい第２混合室
が形成され、この第２混合室は多数の透孔を有する環状
の混合促進板を介して前記第１混合室に連通され、前記
混合促進板は外縁部が前記バーナ本体の段部に係止され
るとともに、内縁部が前記二次空気パイプに形成された
段部に係止されている構成である。(D) Means for Solving the Problems In the present invention, a burner head having a plurality of flame holes is provided in a bottomed cylindrical burner body provided at the tip opening, and the burner body is provided so as to penetrate the burner body. Gas combustion provided with a secondary air pipe for supplying secondary air to the central portion of the burner head, a fuel nozzle for supplying gas fuel to the burner body, and a blower for supplying combustion air to the air passage around the burner body. In the apparatus, the burner main body is provided with a step portion in the middle of the peripheral wall thereof, and a first mixing chamber to which gas fuel and primary air are swirlingly supplied is formed in the burner main body on the base side of the step portion. In addition, a second mixing chamber having a larger diameter and a larger volume than the first mixing chamber is formed in the burner body on the tip end side of the step portion, and the second mixing chamber has a large number of through holes. The first mixing chamber through an annular mixing promotion plate The mixing promotion plate has an outer edge portion locked to a step portion of the burner body and an inner edge portion locked to a step portion formed on the secondary air pipe.
（ホ）作用 バーナ本体はその周壁途中に段部が設けられ、この段部
よりも基部側のバーナ本体内にガス燃料と一次空気が旋
回状に供給される第１混合室が形成されるとともに、段
部よりも先端部側のバーナ本体内には第１混合室より大
径で、かつ、容積の大きい第２混合室が形成されている
ので、第１混合室に供給されたガス燃料と一次空気の混
合ガスは、第２混合室でその速度と圧力が大幅に緩和さ
れた後、バーナヘッドに導かれる。そのため、各炎孔か
ら噴出する混合ガスの噴出速度を低下させることがで
き、点火時のリフティングが抑制され、点火性能を向上
させることができるとともに、燃焼騒音も減少させるこ
とができる。(E) Action The burner main body has a step portion in the middle of its peripheral wall, and a first mixing chamber for swirling supply of gas fuel and primary air is formed in the burner main body on the base side of the step portion. Since the second mixing chamber having a larger diameter and a larger volume than the first mixing chamber is formed in the burner body on the tip end side of the step portion, the gas fuel supplied to the first mixing chamber The mixed gas of primary air is guided to the burner head after its velocity and pressure are significantly relaxed in the second mixing chamber. Therefore, the ejection speed of the mixed gas ejected from each flame hole can be reduced, lifting at the time of ignition can be suppressed, ignition performance can be improved, and combustion noise can be reduced.
第２混合室は多数の透孔を有する環状の混合促進板を介
して前記第１混合室に連通されているので、第１混合室
に旋回状に供給されたガス燃料と一次空気との混合ガス
は、混合促進板の多数の透孔を通過する際に円周方向の
圧力が均一化されるとともに、混合も促進され、しか
も、混合促進板はバーナヘッドと離れた位置に設けられ
ているので、各炎孔には良好に混合された混合ガスを均
一に送ることができ、各炎孔に形成される火炎の均一化
が図れ、安定した燃焼状態が得られる。Since the second mixing chamber is communicated with the first mixing chamber through the annular mixing promoting plate having a large number of through holes, the gas fuel swirlingly supplied to the first mixing chamber is mixed with the primary air. When the gas passes through a large number of through holes of the mixing promoting plate, the pressure in the circumferential direction is made uniform and mixing is promoted, and the mixing promoting plate is provided at a position apart from the burner head. Therefore, the mixed gas that is well mixed can be uniformly sent to each flame hole, the flames formed in each flame hole can be made uniform, and a stable combustion state can be obtained.
混合促進板は外縁部がバーナ本体の段部に係止されると
ともに、内縁部が二次空気パイプに形成された段部に係
止されている構成であるため、取り付けビスなどの固定
部品を用いることなく、バーナ本体と二次空気パイプを
利用して、バーナ本体内に安定的に固定でき、混合促進
板の取り付け構造を簡略化できる。The outer edge of the mixing promotion plate is locked to the step of the burner body, and the inner edge is locked to the step formed on the secondary air pipe. By using the burner body and the secondary air pipe without using them, the burner body can be stably fixed in the burner body, and the mounting structure of the mixing promotion plate can be simplified.
（ヘ）実施例 （１）は燃焼装置（２）の支持板、（３）は熱交換器と
しての燃焼筒で、燃焼室（４）を形成している。（５）
は空気導入口（６）を給気用送風機（７）に連通させて
内部を空気通路（Ｅ）となした有底円筒状の給気ケー
ス、（８）は該給気ケース（５）に断熱材（９）を介し
て連結したバーナケースで、該バーナケース（８）と給
気ケース（５）は着脱可能に連結一体化されると共に断
熱材（10）を介して前記支持板（１）に固定支持されて
いる。そして、前記バーナケース（８）の先端部（8A）
は支持板（１）を貫通して前記燃焼室（４）内に臨ませ
ている。（11）は前記給気ケース（５）内とバーナケー
ス（８）内に跨って収容したアルミダイキヤスト等の金
属材料にて構成せる有底円筒状のバーナ本体で、該バー
ナ本体（11）はその略中央部に段部（12）を形設して基
部側の内部を小径の一次混合室（13）とし、先端部側の
内部を前記一次混合室（13）よりも大径で、かつ、容積
の大きい二次混合室（14）となしている。そして、前記
一次混合室（13）は約44mmの内径に形成してあり、また
前記二次混合室（14）は約56mmの内径に形成してある。
（15）は前記バーナ本体（11）の一次混合室（13）側の
周壁と一体に形成した中空円筒状の導入筒で、該導入筒
（15）の入口（15A）には給気ケース（５）を貫通して
ガス燃料を供給する燃料ノズル（16）を臨ませており、
この導入筒（15）よりガス燃料と前記給気用送風機
（７）からの一次空気が一次混合室（13）内に旋回状に
供給される。（17）は複数個の連通孔（18）（18）…を
有する環状支持板で、前記バーナ本体（11）はこの環状
支持板（17）を介して前記給気ケース（５）に固定され
ている。（19）はバーナ本体（１）の先端開口部に取付
け固定したバーナヘツドで、該バーナヘツド（19）は重
ね合わせた複数板の金網（20）（21）と炎孔板（22）と
を順に重合してスポツト熔接にて一体的に結合してあ
り、そしてバーナ本体（11）の先端面にビス（23）（2
3）…止めした支持リング（24）とバーナ本体（11）内
周面に形設した環状突部（25）とによって挾持されてい
る。前記金網（20）（21）は夫々中央開口を穿設してお
り且つ網目方向を異ならせて重ね合わせている。又、前
記炎孔板（22）はステンレス鋼板等の平坦状金属薄板に
て構成しており、第２図で示すように前記金網（20）
（21）の中央開口と合致させてその中央部に中央二次空
気孔（26）を開設すると共に、外側部寄りには径が約７
〜8mmの複数個の主炎孔（27）（27）…を環状に列設し
ており、更にそれら主炎孔（27）（27）…の外側近傍に
位置して径が約2mmの補助炎孔（28）（28）…を複数個
環状に列設して開設している。（29）は前記バーナヘツ
ド（19）の中央部に二次空気を供給する二次空気パイプ
で、その先端部は前記炎孔板（22）の中央二次空気孔
（26）に連通して金網（20）の裏面にビス（30）（30）
…止めされ、且つ基端部はバーナ本体（11）の側壁略中
央を貫通してナット（31）止めされている。（32）は前
記一次混合室（13）と二次混合室（14）とを仕切るよう
にその外周縁を前記段部（12）に当接して前記内側二次
空気パイプ（29）の途中外周に嵌着した環状の混合促進
板で、第３図で示すように該混合促進板（32）には内側
に径が約2mmの多数の透孔（30）（30）…を環状に穿設
しており、その透孔（33）（33）…の外側には径が約3m
mの透孔（34）（34）…を二条の環状に多数穿設してい
る。そして、前記混合促進板（32）は、１図に示すよう
に、その外縁部が前記段部（12）に係止されるととも
に、内縁部が前記二次空気パイプ（29）に形成されたバ
ーナ本体（11）の段部（12）とは逆向きの段部（29A）
に係止されて、バーナ本体（11）内に固定されている
（35）はバーナ本体（11）とバーナケース（８）との間
に形成した外側二次空気室で、この外側二次空気室（3
5）内には前記環状支持板（17）の連通孔（18）（18）
…を通って給気ケース（５）内の空気が供給される。
（36）（36）…は前記バーナ本体（11）に嵌合したバー
ナケース（８）の嵌合部（8B）に穿設せる多数の外側二
次空気孔で、該外側二次空気孔（36）より前記外側二次
空気室（36）内の二次空気が支持リング（24）の表面に
沿ってバーナヘツド（19）の中心部に向かうように噴出
する。(F) Example (1) is a support plate for the combustion device (2), and (3) is a combustion tube as a heat exchanger, which forms a combustion chamber (4). (5)
Is a bottomed cylindrical air supply case in which the air inlet (6) is connected to the air supply blower (7) to form an air passage (E) inside, and (8) is the air supply case (5). In a burner case connected via a heat insulating material (9), the burner case (8) and the air supply case (5) are detachably connected and integrated, and the support plate (1) is connected via a heat insulating material (10). ) Is fixedly supported by. And the tip portion (8A) of the burner case (8)
Penetrates through the support plate (1) and faces the inside of the combustion chamber (4). Reference numeral (11) is a bottomed cylindrical burner body made of a metal material such as aluminum die cast which is housed in the air supply case (5) and the burner case (8). Has a stepped portion (12) formed in the substantially central portion thereof to form a small-diameter primary mixing chamber (13) on the base side, and an internal portion on the tip side having a larger diameter than the primary mixing chamber (13), In addition, the secondary mixing chamber (14) has a large volume. The primary mixing chamber (13) has an inner diameter of about 44 mm, and the secondary mixing chamber (14) has an inner diameter of about 56 mm.
Reference numeral (15) is a hollow cylindrical introduction tube integrally formed with the peripheral wall on the primary mixing chamber (13) side of the burner body (11), and an inlet case (15A) of the introduction tube (15) is provided with an air supply case ( 5) The fuel nozzle (16) that supplies gas fuel through the
Gas fuel and primary air from the air supply blower (7) are swirlingly supplied into the primary mixing chamber (13) through the introduction cylinder (15). (17) is an annular support plate having a plurality of communication holes (18) (18) ... The burner body (11) is fixed to the air supply case (5) via the annular support plate (17). ing. Reference numeral (19) is a burner head fixedly attached to the opening of the tip of the burner body (1). Then, they are integrally connected by spot welding, and screws (23) (2) are attached to the tip surface of the burner body (11).
3) ... It is held by the stopped support ring (24) and the annular projection (25) formed on the inner peripheral surface of the burner body (11). The wire nets (20) and (21) each have a central opening and are superposed with different mesh directions. The flame hole plate (22) is composed of a flat metal thin plate such as a stainless steel plate, and as shown in FIG.
A central secondary air hole (26) is opened in the center of the opening so as to match the central opening of (21), and the diameter is approximately 7 at the outer side.
A plurality of main flame holes (27) (27) of ~ 8 mm are arranged in a row in an annular shape, and are located near the outside of the main flame holes (27) (27) ... and have a diameter of about 2 mm. A plurality of flame holes (28) (28) are arranged in a line in a ring shape. Reference numeral (29) is a secondary air pipe for supplying secondary air to the central portion of the burner head (19), and its tip portion communicates with the central secondary air hole (26) of the flame hole plate (22) to form a wire mesh. Screw (30) (30) on the back of (20)
... is fixed, and the base end portion penetrates substantially the center of the side wall of the burner body (11) and is fixed to the nut (31). The outer peripheral edge of the (32) is in contact with the stepped portion (12) so as to partition the primary mixing chamber (13) and the secondary mixing chamber (14), and the outer periphery of the inner secondary air pipe (29) is intermediate. As shown in FIG. 3, a plurality of through holes (30) (30) with a diameter of about 2 mm are bored in the inside of the mixing promotion plate (32) which is fitted in the annular mixing promotion plate. The diameter is about 3 m outside the through holes (33) (33).
A large number of m through holes (34) (34) are formed in a two-row annular shape. As shown in FIG. 1, the outer edge of the mixing promoting plate (32) is locked to the step (12) and the inner edge of the mixing promoting plate (32) is formed on the secondary air pipe (29). Step (29A) opposite to step (12) of burner body (11)
(35) locked to the burner body (11) is an outer secondary air chamber formed between the burner body (11) and the burner case (8). Room (3
5) Communication holes (18) (18) for the annular support plate (17)
The air in the air supply case (5) is supplied through.
(36) (36) ... are a large number of outer secondary air holes formed in the fitting portion (8B) of the burner case (8) fitted to the burner body (11). The secondary air in the outer secondary air chamber (36) is blown from 36) along the surface of the support ring (24) toward the center of the burner head (19).
又、（37）は前記主炎孔（27）に形成された主火炎
（Ｘ）中に位置するように燃焼筒（３）に取付けたフレ
ームロッド、（38）は補助炎孔（28）より噴出する混合
ガスに先ず着火させその補助炎孔（28）に形成された補
助火炎（Ｙ）により主炎孔（27）に引火させる点火プラ
グである。Further, (37) is a frame rod attached to the combustion cylinder (3) so as to be positioned in the main flame (X) formed in the main flame hole (27), and (38) is from the auxiliary flame hole (28). This is a spark plug that first ignites the jetted mixed gas to ignite the main flame hole (27) by the auxiliary flame (Y) formed in the auxiliary flame hole (28).
上記構成において、給気用送風機（７）の運転を開始す
ると屋外の空気が給排気筒（図示せず）を介して送風機
（７）に吸引され、そして送風機（７）より空気導入口
（６）を通して給気ケース（５）内に燃焼用空気を強制
的に供給する。この給気ケース（５）の空気通路（Ｅ）
内に送られた空気の一部は、燃料ノズル（16）より噴出
するLPGガス等のガス燃料と共に燃焼一次空気として導
入筒（15）内に流入し、バーナ本体（11）の一次混合室
（13）内で旋回しながらガス燃料と混合して混合ガスと
なる。そして、その混合ガスは混合促進板（32）の透孔
（33）（34）を通過する時に混合度を高められると共
に、円周方向の圧力を均一化されて二次混合室（14）内
に送り込まる。この時、二次混合室（14）は一次混合室
（13）よりもその内径が大である為、混合ガスは前記二
次混合室（14）内で混合ガス流の速度を緩和された後、
金網（20）（21）を通って炎孔板（22）の主炎孔（27）
（27）…と補助炎孔（28）（28）…より燃焼室（４）内
に噴出する。ここで、点火プラグ（37）の放電火花で着
火させると、主炎孔（27）に主火炎（Ｘ）が補助炎孔
（28）に補助火炎（Ｙ）が形成されて燃焼を開始する。In the above structure, when the operation of the air supply blower (7) is started, outdoor air is sucked into the air blower (7) through the air supply / exhaust pipe (not shown), and the air introduction port (6) is introduced from the air blower (7). ) Forcibly supply combustion air into the air supply case (5). Air passage (E) of this air supply case (5)
A part of the air sent to the inside flows into the introduction cylinder (15) as combustion primary air together with the gas fuel such as LPG gas ejected from the fuel nozzle (16), and the primary mixing chamber of the burner body (11) ( It mixes with the gas fuel while turning in 13) and becomes a mixed gas. Then, when the mixed gas passes through the through holes (33) (34) of the mixing promotion plate (32), the degree of mixing is increased and the pressure in the circumferential direction is made uniform, so that the inside of the secondary mixing chamber (14). Be sent to. At this time, since the inner diameter of the secondary mixing chamber (14) is larger than that of the primary mixing chamber (13), the mixed gas flows in the secondary mixing chamber (14) after the velocity of the mixed gas is relaxed. ,
Main flame hole (27) of flame hole plate (22) through wire mesh (20) (21)
(27) ... and auxiliary flame holes (28), (28) ... are injected into the combustion chamber (4). Here, when the spark plug (37) is ignited by the discharge spark, a main flame (X) is formed in the main flame hole (27) and an auxiliary flame (Y) is formed in the auxiliary flame hole (28) to start combustion.
一方、給気ケース（５）の空気通路（Ｅ）内に送られた
空気の他の一部は、内側二次空気パイプ（29）を通って
バーナヘッド（19）の中央部より主火炎（Ｘ）の内側に
二次空気として送り込まれ、更に空気通路（Ｅ）内の残
り空気は、環状支持板（17）の連通孔（18）を通って外
側二次空気室（35）内に蓄えられた後、外側二次空気孔
（36）より主火炎（Ｘ）の外側に供給される。On the other hand, the other part of the air sent into the air passage (E) of the air supply case (5) passes through the inner secondary air pipe (29) from the central part of the burner head (19) to the main flame ( X) is sent as secondary air inside, and the remaining air in the air passage (E) is stored in the outside secondary air chamber (35) through the communication hole (18) of the annular support plate (17). Then, the air is supplied to the outside of the main flame (X) through the outside secondary air hole (36).
（ト）発明の効果 本発明のガス燃焼装置は以上の如く構成したので下記の
効果を奏する。(G) Effects of the Invention Since the gas combustion apparatus of the present invention is configured as described above, it has the following effects.
バーナ本体はその周壁途中に段部が設けられ、この段
部よりも基部側のバーナ本体内にガス燃料と一次空気が
旋回状に供給される第１混合室が形成されるとともに、
段部よりも先端部側のバーナ本体内には第１混合室より
大径で、かつ、容積の大きい第２混合室が形成されてい
るので、第１混合室に供給されたガス燃料と一次空気の
混合ガスは、第２混合室でその速度と圧力が大幅に緩和
させた後、バーナヘッドに導かれるため、点火時のリフ
ティングが抑制され、点火性能を向上させることができ
るとともに、燃焼騒音を減少させることができる。The burner main body is provided with a step part in the middle of its peripheral wall, and a first mixing chamber for supplying the gas fuel and the primary air in a swirling manner is formed in the burner main body on the base side of the step part.
Since the second mixing chamber having a larger diameter and a larger volume than the first mixing chamber is formed in the burner body on the tip side of the step portion, the gas fuel supplied to the first mixing chamber and the primary mixing chamber are formed. The mixed gas of air is guided to the burner head after its speed and pressure are significantly eased in the second mixing chamber, so that lifting at the time of ignition is suppressed, ignition performance can be improved, and combustion noise can be improved. Can be reduced.
第２混合室は多数の透孔を有する環状の混合促進板を
介して前記第１混合室に連通されているので、第１混合
室に旋回状に供給されたガス燃料と一次空気との混合ガ
スは、混合促進板の多数の透孔を通過する際に円周方向
の圧力が均一化されるとともに、混合も促進され、しか
も、混合促進板はバーナヘッドと離れた位置に設けられ
ているので、各炎孔には良好に混合された混合ガスを均
一に送ることができ、各炎孔に形成される火炎の均一化
が図れ、安定した燃焼状態が得られる。Since the second mixing chamber is communicated with the first mixing chamber through the annular mixing promoting plate having a large number of through holes, the gas fuel swirlingly supplied to the first mixing chamber is mixed with the primary air. When the gas passes through a large number of through holes of the mixing promoting plate, the pressure in the circumferential direction is made uniform and mixing is promoted, and the mixing promoting plate is provided at a position apart from the burner head. Therefore, the mixed gas that is well mixed can be uniformly sent to each flame hole, the flames formed in each flame hole can be made uniform, and a stable combustion state can be obtained.
混合促進板は外縁部がバーナ本体の段部に係止される
とともに、内縁部が二次空気パイプに形成された段部に
係止されている構成であるため、取り付けビスなどの固
定部品を用いることなく、バーナ本体と二次空気パイプ
を利用して、バーナ本体内に安定的に固定でき、混合促
進板の取り付け構造の簡略化が図れ、部品点数や組立作
業工数を増加させないようにできる。The outer edge of the mixing promotion plate is locked to the step of the burner body, and the inner edge is locked to the step formed on the secondary air pipe. Without using it, it can be stably fixed in the burner body by using the burner body and the secondary air pipe, the installation structure of the mixing promotion plate can be simplified, and the number of parts and assembly work can be prevented from increasing. .
第１図は本発明の実施例を示すガス燃焼装置の要部断面
図、第２図は第１図のＡ−Ａ′断面図、第３図は混合促
進板の一部を切欠した状態の第１図のＢ−Ｂ′断面図で
ある。 （７）……送風機、（11）……バーナ本体、（12）……
バーナ本体の段部、（13）……一次混合室（第１混合
室）、（14）……二次混合室（第２混合室）、（16）…
…燃料ノズル、（19）……バーナヘッド、（27）……主
炎孔（炎孔）、（29）……二次空気パイプ、（29A）…
…二次空気パイプの段部、（32）……混合促進板、（3
3）（34）……透孔。FIG. 1 is a sectional view of a main part of a gas combustion apparatus showing an embodiment of the present invention, FIG. 2 is a sectional view taken along the line AA ′ of FIG. 1, and FIG. FIG. 2 is a sectional view taken along line BB ′ of FIG. 1. (7) …… Blower, (11) …… Burner body, (12) ……
Step part of burner body, (13) …… Primary mixing chamber (first mixing chamber), (14) …… Secondary mixing chamber (second mixing chamber), (16)…
… Fuel nozzle, (19)… Burner head, (27)… Main flame hole (flame hole), (29)… Secondary air pipe, (29A)…
… Steps of secondary air pipe, (32) …… Mixing promotion plate, (3
3) (34) …… Through hole.
Claims (1)
開口部に設けられた有底円筒状のバーナ本体と、このバ
ーナ本体を貫いて設けられ、二次空気をバーナヘッドの
中央部に供給する二次空気パイプと、バーナ本体にガス
燃料を供給する燃料ノズルと、バーナ本体の周囲の空気
通路に燃焼空気を供給する送風機とを備えたガス燃焼装
置であって、前記バーナ本体はその周壁途中に段部が設
けられ、この段部よりも基部側のバーナ本体内にガス燃
料と一次空気が旋回状に供給される第１混合室が形成さ
れるとともに、段部よりも先端部側のバーナ本体内には
第１混合室より大径で、かつ、容積の大きい第２混合室
が形成され、この第２混合室は多数の透孔を有する環状
の混合促進板を介して前記第１混合室に連通され、前記
混合促進板は外縁部が前記バーナ本体の段部に係止され
るとともに、内縁部が前記二次空気パイプに形成された
段部に係止されていることを特徴とするガス燃焼装置。1. A bottomed cylindrical burner main body having a burner head having a plurality of flame holes at its tip opening, and a burner main body penetrating the burner main body. Secondary air is provided at the center of the burner head. A gas combustion apparatus comprising a secondary air pipe for supplying, a fuel nozzle for supplying a gas fuel to the burner body, and a blower for supplying combustion air to an air passage around the burner body, wherein the burner body is A step is provided in the middle of the peripheral wall, and a first mixing chamber for swirling the gas fuel and the primary air is formed in the burner body on the base side of the step, and at the tip side of the step. A second mixing chamber having a larger diameter and a larger volume than the first mixing chamber is formed in the burner body of the second mixing chamber, and the second mixing chamber is provided with an annular mixing promoting plate having a large number of through holes. 1 is connected to the mixing chamber, the mixing promotion plate is an outer edge There wherein with locked to the step portion of the burner body, gas combustion apparatus, characterized in that the inner edge is engaged with the stepped portion formed in the secondary air pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60246677A JPH0663623B2 (en) | 1985-11-01 | 1985-11-01 | Gas combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60246677A JPH0663623B2 (en) | 1985-11-01 | 1985-11-01 | Gas combustion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62106212A JPS62106212A (en) | 1987-05-16 |
| JPH0663623B2 true JPH0663623B2 (en) | 1994-08-22 |
Family
ID=17151972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60246677A Expired - Lifetime JPH0663623B2 (en) | 1985-11-01 | 1985-11-01 | Gas combustion device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0663623B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2772461B1 (en) * | 1997-12-15 | 2000-02-11 | Julien Lacaze | INDUSTRIAL BURNER WITH PRE-MIXTURE OF FUEL GAS AND COMBUSTION AIR |
| JP5620738B2 (en) * | 2010-08-05 | 2014-11-05 | リンナイ株式会社 | Tubular burner |
| US9410698B2 (en) | 2011-10-11 | 2016-08-09 | Rinnai Corporation | Tubular burner |
| CN104033901B (en) * | 2014-06-04 | 2016-05-25 | 浙江博立灶具科技有限公司 | Saving gas burning stove head |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5296425A (en) * | 1976-02-10 | 1977-08-13 | Matsushita Electric Ind Co Ltd | Gas combustion apparatus |
| JPS5941089A (en) * | 1982-08-31 | 1984-03-07 | Mitsubishi Electric Corp | Normalizing device of character pattern |
-
1985
- 1985-11-01 JP JP60246677A patent/JPH0663623B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62106212A (en) | 1987-05-16 |
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