JPS643950Y2 - - Google Patents
Info
- Publication number
- JPS643950Y2 JPS643950Y2 JP7794683U JP7794683U JPS643950Y2 JP S643950 Y2 JPS643950 Y2 JP S643950Y2 JP 7794683 U JP7794683 U JP 7794683U JP 7794683 U JP7794683 U JP 7794683U JP S643950 Y2 JPS643950 Y2 JP S643950Y2
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- peripheral surface
- fuel
- inner peripheral
- outer peripheral
- 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
- 239000000446 fuel Substances 0.000 claims description 29
- 230000002093 peripheral effect Effects 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 11
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 238000009689 gas atomisation Methods 0.000 claims description 4
- 230000008602 contraction Effects 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 5
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000010420 art technique Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
Description
【考案の詳細な説明】
本考案は、噴射される液体燃料をガス燃料によ
つて霧化して燃焼するようにした外部混合型ガス
アトマイズバーナに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an external mixing type gas atomizing burner that atomizes and burns injected liquid fuel with gas fuel.
典型的な先行技術では、液体燃料をガス燃料に
よつて霧化し、バーナタイルにおいて保炎を行な
つている。一般にガスアトマイズ燃焼時には、火
炎形状は鋭い。したがつて保炎効果が不十分であ
る。 Typical prior art techniques atomize liquid fuel with gaseous fuel to provide flame holding in the burner tiles. Generally, during gas atomized combustion, the flame shape is sharp. Therefore, the flame holding effect is insufficient.
本考案は、十分な保炎効果を達成することがで
きるようにした外部混合型ガスアトマイズバーナ
を提供することである。 The object of the present invention is to provide an external mixing type gas atomizing burner that can achieve a sufficient flame holding effect.
第１図は本考案の一実施例の縦断面図であり、
第２図は第１図において示されている燃料管体３
０の拡大断面図である。直円筒状の第１筒１に
は、その端部２から液体燃料が圧送される。第２
筒３は、第１筒１と同心の直円筒状である。この
第２筒３は、筒部４とキヤツプ５とを含む。第１
筒１の外周面と第２筒３の内周面との間の空間６
には、供給口７からガス燃料が圧送される。筒部
４はキヤツプ５に内挿されて螺合される。このキ
ヤツプ５には、空間６に連通して半径方向外方に
延びる保炎孔９が周方向に間隔を開けて複数個形
成される。この保炎孔９に関してガス燃料の上流
側（第２図の左方）には、半径方向外方に突出し
た絞り片１０が周方向に連続して形成される。第
１筒１および第２筒３に関連してノズルチツプ８
が設けられる。このノズルチツプ８は、第１筒１
に内挿されて固定される。 FIG. 1 is a longitudinal sectional view of an embodiment of the present invention,
FIG. 2 shows the fuel pipe body 3 shown in FIG.
0 is an enlarged sectional view of FIG. Liquid fuel is pumped into the first cylinder 1 having a right cylindrical shape from an end 2 thereof. Second
The cylinder 3 has a right cylindrical shape concentric with the first cylinder 1. This second cylinder 3 includes a cylinder part 4 and a cap 5. 1st
Space 6 between the outer peripheral surface of the cylinder 1 and the inner peripheral surface of the second cylinder 3
Gas fuel is fed under pressure from the supply port 7. The cylindrical portion 4 is inserted into the cap 5 and screwed together. A plurality of flame holding holes 9 are formed in the cap 5 at intervals in the circumferential direction, communicating with the space 6 and extending radially outward. On the upstream side of the gas fuel (left side in FIG. 2) with respect to the flame holding hole 9, a restrictor piece 10 that protrudes outward in the radial direction is formed continuously in the circumferential direction. Nozzle tip 8 in relation to the first cylinder 1 and the second cylinder 3
is provided. This nozzle tip 8 is connected to the first cylinder 1.
is interpolated and fixed.
第３図は第２図の切断面線−から見た断面
図である。ノズルチツプ８は、液体燃料が噴射さ
れる中心孔１１と、その外周に周方向に間隔を開
けて形成された周溝１２とを有する。この周溝１
２は、ガス燃料が供給される空間６に連通してい
る。ノズルチツプ８の先端部１３の外周は直円筒
に形成されている。キヤツプ５の先端部には直円
筒状の内孔１４が形成される。ノズルチツプ８の
先端部１３は、この内孔１４に嵌込んでいる。こ
れによつてノズルチツプ８とキヤツプ５との軸線
方向に沿う相互の熱膨張，収縮に起因した変位が
許容される。第３筒１５は、第２筒３を半径方向
に間隔を開けて外囲する。第３筒１５の先端部１
６は、キヤツプ５において大径とされる。第３筒
１５の後端部は端板１７によつて第２筒３の筒部
４の外周面と気密に塞がれており、これによつて
空気室１８が形成される。第３筒１５の外周に
は、導入孔１９が周方向に間隔を開けて複数個形
成される。 FIG. 3 is a sectional view taken along the section line - in FIG. 2. The nozzle tip 8 has a center hole 11 through which liquid fuel is injected, and circumferential grooves 12 formed on the outer periphery of the center hole 11 at intervals in the circumferential direction. This circumferential groove 1
2 communicates with a space 6 into which gaseous fuel is supplied. The outer periphery of the tip 13 of the nozzle tip 8 is formed into a right cylinder. A right cylindrical inner hole 14 is formed at the tip of the cap 5 . The tip 13 of the nozzle tip 8 is fitted into this inner hole 14. This allows displacement of the nozzle tip 8 and cap 5 due to mutual thermal expansion and contraction along the axial direction. The third cylinder 15 surrounds the second cylinder 3 with an interval in the radial direction. Tip part 1 of third cylinder 15
6 has a large diameter in the cap 5. The rear end of the third cylinder 15 is airtightly closed to the outer circumferential surface of the cylindrical portion 4 of the second cylinder 3 by an end plate 17, thereby forming an air chamber 18. A plurality of introduction holes 19 are formed on the outer periphery of the third cylinder 15 at intervals in the circumferential direction.
燃料管体３０は外囲して第４筒２０が設けられ
る。この第４筒２０は、バーナタイル２１と、そ
のバーナタイル２１よりも上流に設けられた筒部
２２とを含む。筒部２２の下流側における端部
は、端板２３によつて第３筒１５の外周面または
その第３筒１５よりもさらに下流側の第２筒３の
筒部４の外周面と気密に連結される。このように
して第３筒１５の外周面と第４筒２０の内周面と
の間に空気室２４が形成される。この空気室２４
にはフアン２５から燃焼用空気が供給される。 A fourth cylinder 20 is provided surrounding the fuel pipe body 30 . This fourth cylinder 20 includes a burner tile 21 and a cylinder part 22 provided upstream of the burner tile 21. The downstream end of the cylindrical portion 22 is airtightly connected to the outer circumferential surface of the third tube 15 or the outer circumferential surface of the cylindrical portion 4 of the second tube 3 further downstream than the third tube 15 by the end plate 23. Concatenated. In this way, an air chamber 24 is formed between the outer peripheral surface of the third cylinder 15 and the inner peripheral surface of the fourth cylinder 20. This air chamber 24
Combustion air is supplied from a fan 25.
第１筒１内に液体燃料が圧送され、これと同時
に第２筒３にガス燃料供給孔７からガス燃料が供
給されることによつて、中心孔１１から噴射され
る液体燃料を霧化する。空気室２４に供給される
フアン２５からの燃焼用空気の一部は、導入孔１
９から空気室１８に導入され、絞り１０の外周面
と第３筒１５の内周面との間の絞り通路２６を経
て導かれる。保炎孔９からは、ガス燃料が噴射さ
れる。こうして保炎孔９からのガス燃料が燃焼さ
れて保炎が形成される。絞り通路２６の絞り量を
変化することによつて、保炎が安定に形成され
る。ノズルチツプ８およびキヤツプ５の働らきに
よつて霧化された液体燃料とガス燃料との混合流
体は、空気室２４からの燃焼用空気により燃焼す
る。 The liquid fuel is fed under pressure into the first cylinder 1, and at the same time, the gas fuel is supplied to the second cylinder 3 from the gas fuel supply hole 7, thereby atomizing the liquid fuel injected from the center hole 11. . A portion of the combustion air from the fan 25 supplied to the air chamber 24 is supplied to the air chamber 24 through the introduction hole 1.
9 into the air chamber 18 , and is led through the throttle passage 26 between the outer circumferential surface of the throttle 10 and the inner circumferential surface of the third cylinder 15 . Gaseous fuel is injected from the flame holding holes 9. In this way, the gaseous fuel from the flame holding hole 9 is combusted and a flame holding hole is formed. By changing the amount of restriction of the restriction passage 26, flame stability is stably formed. The mixed fluid of liquid fuel and gas fuel atomized by the action of the nozzle tip 8 and the cap 5 is combusted by the combustion air from the air chamber 24.
保炎孔９は、第２筒３のキヤツプ５に形成され
ており、霧化された液体燃料とガス燃料との混合
流体の近傍である。したがつて火炎が鋭くても十
分な保炎効果が達成される。 The flame holding hole 9 is formed in the cap 5 of the second cylinder 3, and is located near the atomized mixed fluid of liquid fuel and gas fuel. Therefore, even if the flame is sharp, a sufficient flame holding effect can be achieved.
上述の実施例では、第１筒１、第２筒３、第３
筒１５および第４筒２０は、大略的に直円筒状に
形成されたけれども、本考案の外の実施例として
他の形状を有してもよく、また第２筒３の内周面
とそれに嵌込んでいるノズルチツプ８の外周面と
の軸直角断面は軸線方向に一様であり、これによ
つて第２筒３のキヤツプ５とノズルチツプ８との
相互の個別的な熱膨張，収縮が許容される。 In the above embodiment, the first cylinder 1, the second cylinder 3, and the third cylinder
Although the tube 15 and the fourth tube 20 are formed into a generally right cylindrical shape, they may have other shapes as an embodiment other than the present invention, and the inner peripheral surface of the second tube 3 and the The cross section perpendicular to the axis of the fitted nozzle tip 8 with the outer circumferential surface is uniform in the axial direction, thereby allowing independent mutual thermal expansion and contraction of the cap 5 of the second cylinder 3 and the nozzle tip 8. be done.
以上のように本考案によれば、第２筒先端付近
に保炎孔を設けてこの保炎孔から噴射されるガス
燃料が第２筒の外周面と第３筒の内周面との間に
供給される保炎用空気によつて燃焼され、したが
つて霧化された液体燃料とガス燃料とによつて形
成される火炎近傍に保炎が形成されるので、保炎
効果が十分に達成される。 As described above, according to the present invention, a flame holding hole is provided near the tip of the second cylinder, and the gas fuel injected from the flame holding hole is distributed between the outer peripheral surface of the second cylinder and the inner peripheral surface of the third cylinder. The flame stabilization effect is sufficient because the flame stabilization effect is formed near the flame that is combusted by the flame stabilization air supplied to the fuel tank, and is formed by the atomized liquid fuel and gas fuel. achieved.
第１図は本考案の一実施例の縦断面図、第２図
は第１図に示された燃料管体３０の拡大断面図、
第３図は第２図の切断面線−から見た断面図
である。
１……第１筒、３……第２筒、４……筒部、５
……キヤツプ、８……ノズルチツプ、９……保炎
孔、１０……絞り、１１……中心孔、１２……周
溝、１５……第３筒、２０……第４筒。
FIG. 1 is a longitudinal sectional view of an embodiment of the present invention, FIG. 2 is an enlarged sectional view of the fuel pipe body 30 shown in FIG. 1,
FIG. 3 is a sectional view taken along the section line - in FIG. 2. 1...First cylinder, 3...Second cylinder, 4...Cylinder part, 5
... Cap, 8 ... Nozzle tip, 9 ... Flame holding hole, 10 ... Aperture, 11 ... Center hole, 12 ... Circumferential groove, 15 ... Third cylinder, 20 ... Fourth cylinder.
Claims (1)
周面と第１筒を外囲する第２筒の内周面との間
に、ガス燃料を圧送し、第１および第２筒の先
端部に関連して設けたノズルチツプによつて液
体燃料をガス燃料で霧化し、第２筒先端部付近
に保炎孔を設け、第２筒を外囲する第３筒によ
つて保炎孔外周を覆い、第２筒の外周面と第３
筒の内周面との間に保炎用空気を供給し、第３
筒の外周面と第３筒を外囲する第４筒の内周面
との間に燃焼用空気を供給することを特徴とす
る外部混合型ガスアトマイズバーナ。 (2) 第２筒の内周面とそれに嵌込んでいるノズル
チツプの外周面との軸直角断面を軸線方向に一
様に形成し、第２筒とノズルチツプとの個別的
な熱膨張，収縮が許容されるようにしたことを
特徴とする実用新案登録請求の範囲第１項記載
の外部混合型ガスアトマイズバーナ。[Claims for Utility Model Registration] (1) Liquid fuel is pumped into a first cylinder, and gaseous fuel is transferred between the outer peripheral surface of the first cylinder and the inner peripheral surface of a second cylinder surrounding the first cylinder. The liquid fuel is atomized with gas fuel by the nozzle tips provided in connection with the tips of the first and second cylinders, a flame holding hole is provided near the tips of the second cylinders, and the second cylinder is removed. The outer periphery of the flame holding hole is covered by the surrounding third cylinder, and the outer peripheral surface of the second cylinder and the third cylinder are
Flame stabilizing air is supplied between the inner peripheral surface of the cylinder and the third
An external mixing type gas atomizing burner characterized in that combustion air is supplied between the outer peripheral surface of the cylinder and the inner peripheral surface of a fourth cylinder surrounding the third cylinder. (2) The cross section perpendicular to the axis of the inner peripheral surface of the second cylinder and the outer peripheral surface of the nozzle chip fitted therein is formed uniformly in the axial direction, so that the individual thermal expansion and contraction of the second cylinder and the nozzle chip is prevented. The external mixing type gas atomizing burner according to claim 1, which is characterized in that it is permissible.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7794683U JPS59181929U (en) | 1983-05-23 | 1983-05-23 | External mixing type gas atomize burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7794683U JPS59181929U (en) | 1983-05-23 | 1983-05-23 | External mixing type gas atomize burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59181929U JPS59181929U (en) | 1984-12-04 |
| JPS643950Y2 true JPS643950Y2 (en) | 1989-02-02 |
Family
ID=30207958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7794683U Granted JPS59181929U (en) | 1983-05-23 | 1983-05-23 | External mixing type gas atomize burner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59181929U (en) |
-
1983
- 1983-05-23 JP JP7794683U patent/JPS59181929U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59181929U (en) | 1984-12-04 |
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