JPH07117211B2 - Combustion device - Google Patents
Combustion deviceInfo
- Publication number
- JPH07117211B2 JPH07117211B2 JP1095733A JP9573389A JPH07117211B2 JP H07117211 B2 JPH07117211 B2 JP H07117211B2 JP 1095733 A JP1095733 A JP 1095733A JP 9573389 A JP9573389 A JP 9573389A JP H07117211 B2 JPH07117211 B2 JP H07117211B2
- Authority
- JP
- Japan
- Prior art keywords
- secondary air
- flame
- chamber
- hole
- mixing chamber
- 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 - Fee Related
Links
Landscapes
- Spray-Type Burners (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、気化式の燃焼装置における火移り時間の短縮
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to reduction of a fire transfer time in a vaporization type combustion device.
従来の技術 従来のこの種の燃焼装置は、第３図に示すように、気化
器１の出口２側に１次整流孔３を介して空気室４と連通
した混合室５が設けられていた。多孔状の炎孔６が混合
室５の下流側に、且つ長手方向に複数個分割して設けら
れ、２次空気室７が空気室４に連通して炎孔６の間に設
けられていた。２次空気孔８が２次空気室の７上端に開
口されていた。燃焼ファン９は空気室４に連通されてい
た。点火栓10は炎孔6Aの下流側に設けられていた。2. Description of the Related Art In a conventional combustion apparatus of this type, as shown in FIG. 3, a mixing chamber 5 communicating with an air chamber 4 via a primary flow straightening hole 3 is provided on the outlet 2 side of a carburetor 1. . A plurality of porous flame holes 6 were provided on the downstream side of the mixing chamber 5 and divided in the longitudinal direction, and a secondary air chamber 7 was provided between the flame holes 6 in communication with the air chamber 4. . The secondary air hole 8 was opened at the upper end 7 of the secondary air chamber. The combustion fan 9 was communicated with the air chamber 4. The spark plug 10 was provided on the downstream side of the flame hole 6A.
上記構成において、気化器１に発生した気化ガスは出口
２から噴出して混合室７に流入した。そして、燃焼ファ
ン９から送られて１次整流孔３を通った１次空気は混合
室７に流入し、気化ガスと混合して予混合気となった。
この予混合気が炎孔６から噴出し、点火栓10により燃焼
を開始した。さらに、燃焼ファン９から送られて２次空
気孔８から噴出した２次空気は先の燃焼を促進した。In the above structure, the vaporized gas generated in the vaporizer 1 was ejected from the outlet 2 and flowed into the mixing chamber 7. Then, the primary air sent from the combustion fan 9 and passed through the primary rectifying holes 3 flows into the mixing chamber 7 and mixes with the vaporized gas to become a premixed gas.
This premixed gas was ejected from the flame hole 6 and combustion was started by the spark plug 10. Further, the secondary air sent from the combustion fan 9 and ejected from the secondary air holes 8 promotes the previous combustion.
発明が解決しようとする課題 しかしながら上記のような構成では、点火栓10により炎
孔6Aから噴出した予混合気が着火して火炎を形成する
が、各予混合気間に２次空気の噴流が存在するために、
火移りに時間を要し、全ての予混合気が着火するまでの
間に気化ガスが排出されるという課題を有していた。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the above-described configuration, the premixed gas ejected from the flame hole 6A is ignited by the spark plug 10 to form a flame, but a jet of secondary air is generated between each premixed gas. To exist,
There was a problem that it took a long time to transfer the fire and the vaporized gas was discharged until all the premixed gases were ignited.
本発明はかかる従来の課題を解消するもので、火移り時
間を短縮して気化ガスの排出を防止することを目的とす
る。The present invention solves such a conventional problem, and an object thereof is to shorten the fire transfer time and prevent the discharge of vaporized gas.
課題を解決するための手段 上記課題を解決するために本発明の燃焼装置は、気化器
の下流側に設けられた混合室と、この混合室の下流側
に、且つ長手方向に複数個分割して設けられた炎孔と、
この炎孔の間に設けられた２次空気室と、２次空気室の
上端に火移り部を除いて開口した２次空気孔とを備えた
燃焼装置。Means for Solving the Problems In order to solve the above problems, the combustion apparatus of the present invention is a mixing chamber provided on the downstream side of the carburetor, on the downstream side of the mixing chamber, and divided into a plurality of pieces in the longitudinal direction. And a flame hole
A combustion device comprising a secondary air chamber provided between the flame holes and a secondary air hole opened at the upper end of the secondary air chamber except for the fire transfer part.
作用 本発明は上記した構成によって、点火栓により予混合気
に着火して形成された火炎が、火移り部で隣接する予混
合気と接触してこの予混合気を瞬時に着火させる。以降
同様の火移りを続けるので火移り時間が短縮できる。Action According to the present invention, the flame formed by igniting the premixed gas by the spark plug comes into contact with the adjacent premixed gas at the transfer portion to instantly ignite the premixed gas. Since the same fire transfer is continued thereafter, the fire transfer time can be shortened.
実施例 以下、本発明の実施例を添付図面にもとづいて説明す
る。Embodiments Embodiments of the present invention will be described below with reference to the accompanying drawings.
第１図、第２図において、11は気化器で、出口12側に１
次整流孔13を介して空気室14と連通した混合室15が設け
られている。16は多孔状の炎孔で、混合室15の下流側
に、且つ長手方向に複数個分割して設けられ、２次空気
室17が空気室14に連通して炎孔16の間に設けられてい
る。18は２次空気孔で、２次空気室17の上端に中央部の
火移り部19を除いて開口されている。20は燃焼ファン
で、空気室14に連通されている。21は点火栓で、多孔16
Aの下流側に設けられている。In FIG. 1 and FIG. 2, 11 is a vaporizer, and 1 is provided on the outlet 12 side.
A mixing chamber 15 is provided which communicates with the air chamber 14 via the next straightening hole 13. Reference numeral 16 denotes a porous flame hole, which is provided on the downstream side of the mixing chamber 15 and is divided into a plurality of pieces in the longitudinal direction, and a secondary air chamber 17 is provided between the flame holes 16 in communication with the air chamber 14. ing. Reference numeral 18 denotes a secondary air hole, which is opened at the upper end of the secondary air chamber 17 except for the fire transfer portion 19 at the center. A combustion fan 20 is communicated with the air chamber 14. 21 is a spark plug, 16 perforated
It is provided on the downstream side of A.
上記構成において、燃焼ファン20から送られる空気は、
気化器11内を通り混合室15へ入る気化用空気、１次整流
孔13を通り混合室15へ入る１次空気、２次空気室17を通
り２次空気孔18より噴出する２次空気の３系統に分けら
れる。一方、気化器11で発生した気化ガスは気化用空気
及び１次空気と混合室15内で混合して予混合気となり、
炎孔16から噴出される。その際に、炎孔16Aから噴出し
た予混合気は点火栓21の放電により着火し、火炎を形成
する。In the above configuration, the air sent from the combustion fan 20 is
The vaporizing air passing through the vaporizer 11 into the mixing chamber 15, the primary air passing through the primary rectifying hole 13 into the mixing chamber 15, the secondary air passing through the secondary air chamber 17, and the secondary air ejected from the secondary air hole 18 Divided into 3 systems. On the other hand, the vaporized gas generated in the vaporizer 11 is mixed with the vaporizing air and the primary air in the mixing chamber 15 to become a premixed gas,
It is ejected from the flame hole 16. At that time, the premixed gas ejected from the flame hole 16A is ignited by the discharge of the spark plug 21 to form a flame.
火移り部19が炎孔16、２次空気孔18に囲まれているため
によどみ領域22が発生し、このよどみ領域22に予混合
気、２次空気が流入する。したがって、先の着火した火
炎は火移り部で隣接する予混合気と接触してこの予混合
気を瞬時に着火させる。以降同様の火移りを続けるので
火移り時間が短縮でき、排気ガスの排出を防止するとい
う効果がある。また、よどみ領域22により炎孔16に形成
された火炎の保炎性が良くなるという効果がある。A stagnation region 22 is generated because the fire transfer part 19 is surrounded by the flame holes 16 and the secondary air holes 18, and the premixed air and the secondary air flow into the stagnation region 22. Therefore, the previously ignited flame comes into contact with the adjacent premixed gas at the fire transfer portion and instantly ignites this premixed gas. Since the same fire transfer is continued thereafter, the fire transfer time can be shortened and the exhaust gas can be prevented from being discharged. Further, the stagnation region 22 has an effect of improving the flame holding property of the flame formed in the flame hole 16.
発明の効果 以上のように本発明の燃焼装置によれば次の効果が得ら
れる。Effects of the Invention As described above, the combustion device of the present invention has the following effects.
（１）２次空気室の上端に火移り部を除いて２次空気孔
を開口しているので、火移り時間の短縮と保炎性向上と
が図れる。(1) Since the secondary air hole is opened at the upper end of the secondary air chamber except for the flame transfer portion, the flame transfer time can be shortened and flame holding property can be improved.
（２）予混合気間に２次空気の噴流が存在するために、
燃焼特性が向上し、低騒音化が図れる。(2) Since there is a jet of secondary air between the premixed air,
Combustion characteristics are improved and noise can be reduced.
第１図は本発明の一実施例における燃焼装置の一部切欠
要部拡大断面図、第２図は一部切欠斜視図、第３図は従
来の燃焼装置の要部拡大断面図である。 11……気化器、14……空気室、15……混合室、16……炎
孔、17……２次空気室、18……２次空気孔、19……火移
り部。FIG. 1 is an enlarged cross-sectional view of a partially cutaway essential part of a combustion apparatus according to an embodiment of the present invention, FIG. 2 is a partially cutaway perspective view, and FIG. 3 is an enlarged cross-sectional view of a main part of a conventional combustion apparatus. 11 ... Vaporizer, 14 ... Air chamber, 15 ... Mixing chamber, 16 ... Flame hole, 17 ... Secondary air chamber, 18 ... Secondary air hole, 19 ... Fire transfer part.
Claims (1)
れた混合室と、この混合室の下流側に、且つ長手方向に
複数個分割して設けられた炎孔と、前記空気室に連通し
て前記炎孔の間に設けられた２次空気室と、この２次空
気室の上端に火移り部を除いて開口した２次空気孔とを
備えた燃焼装置。1. A mixing chamber provided downstream of the vaporizer in communication with an air chamber, a plurality of flame holes provided downstream of the mixing chamber in the longitudinal direction, and the air. A combustion device comprising a secondary air chamber communicating with the chamber and provided between the flame holes, and a secondary air hole opened at the upper end of the secondary air chamber except for the fire transfer part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1095733A JPH07117211B2 (en) | 1989-04-14 | 1989-04-14 | Combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1095733A JPH07117211B2 (en) | 1989-04-14 | 1989-04-14 | Combustion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02275206A JPH02275206A (en) | 1990-11-09 |
| JPH07117211B2 true JPH07117211B2 (en) | 1995-12-18 |
Family
ID=14145677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1095733A Expired - Fee Related JPH07117211B2 (en) | 1989-04-14 | 1989-04-14 | Combustion device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07117211B2 (en) |
-
1989
- 1989-04-14 JP JP1095733A patent/JPH07117211B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02275206A (en) | 1990-11-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |