JPS6321084B2 - - Google Patents
Info
- Publication number
- JPS6321084B2 JPS6321084B2 JP57044936A JP4493682A JPS6321084B2 JP S6321084 B2 JPS6321084 B2 JP S6321084B2 JP 57044936 A JP57044936 A JP 57044936A JP 4493682 A JP4493682 A JP 4493682A JP S6321084 B2 JPS6321084 B2 JP S6321084B2
- Authority
- JP
- Japan
- Prior art keywords
- combustion
- tube
- vaporization
- flame
- cylinder
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 92
- 230000008016 vaporization Effects 0.000 claims description 33
- 238000009834 vaporization Methods 0.000 claims description 26
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000000446 fuel Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 description 7
- 239000003921 oil Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 5
- 235000009781 Myrtillocactus geometrizans Nutrition 0.000 description 4
- 240000009125 Myrtillocactus geometrizans Species 0.000 description 4
- 244000171022 Peltophorum pterocarpum Species 0.000 description 4
- 239000006200 vaporizer Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/005—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space with combinations of different spraying or vaporising means
- F23D11/008—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space with combinations of different spraying or vaporising means combination of means covered by sub-groups F23D5/00 and F23D11/00
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
Description
【発明の詳細な説明】
本発明は給湯機が家庭用暖房機器に使用される
燃焼装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a combustion device in which a water heater is used as a household heating device.
従来この種の燃焼装置は第３図に示す様に構成
されている。すなわちノズル１′より噴霧された
粒子は気化筒１１′の下部空気噴出孔１２′からの
旋回空気流と混合黄火拡散燃焼し、その燃焼熱に
よる気化筒１１′表面の温度上昇と燃焼炎への粒
子衝突、及び輻射熱により、気化筒１１′と助燃
筒１４′と間の予混合領域１３′で混合、気化が促
進され、可燃空気量となる気化筒１１′の上部の
空気噴出孔１２′で気化青炎燃焼を行うものであ
るが、燃焼炎が旋回噴出流による乱流燃焼の為分
散火炎にするとはいえ低騒音化を図るには限界が
ある。又燃焼炎の方向が気化筒１１′から放射状
に形成されている為、燃焼熱を受けても高温加熱
されないよう水ジヤケツト２０等により燃焼室
９′を形成する必要があり、燃焼装置として機能
をはたす為には構成が複雑でコスト高となるとと
もに、燃焼炎が水ジヤケツト２０に衝突し冷却さ
れ一酸化炭素を発生し良好な燃焼が得られない欠
点を有していた。 Conventionally, this type of combustion apparatus has been constructed as shown in FIG. In other words, the particles sprayed from the nozzle 1' are mixed with the swirling air flow from the lower air jet hole 12' of the vaporizer tube 11', and undergo yellow flame diffusion combustion, and the heat of combustion raises the temperature of the surface of the vaporizer tube 11' and causes a combustion flame. Due to particle collisions and radiant heat, mixing and vaporization are promoted in the premixing region 13' between the vaporizing tube 11' and the auxiliary combustion tube 14', and the amount of air becomes combustible. However, since the combustion flame is turbulent combustion due to swirling jet flow, there is a limit to how low noise can be achieved even if it is a dispersed flame. In addition, since the direction of the combustion flame is radial from the vaporizing tube 11', it is necessary to form the combustion chamber 9' with a water jacket 20 or the like so that it will not be heated to a high temperature even if it receives combustion heat, so that it cannot function as a combustion device. For this purpose, the structure is complicated and the cost is high, and the combustion flame collides with the water jacket 20 and is cooled down, producing carbon monoxide, making it difficult to obtain good combustion.
また気化筒１１′からの空気噴出孔１２′のみで
混合、気化、燃焼の過程が促進されている為、気
化筒１１′の上部燃焼保炎位置と下部混合位置と
では表面温度差が大きく、熱膨張の差により気化
筒の熱変形・歪が大きく、燃焼に不安定さをきた
し、実使用上信頼性の乏しいものであつた。 In addition, since the mixing, vaporization, and combustion processes are promoted only by the air jet holes 12' from the vaporization tube 11', there is a large difference in surface temperature between the upper combustion flame holding position and the lower mixing position of the vaporization tube 11'. Due to the difference in thermal expansion, thermal deformation and distortion of the vaporizer cylinder were large, resulting in unstable combustion and poor reliability in practical use.
本発明はこのような従来の欠点を除去するもの
で、円孔燃焼炎による層流燃焼により低騒音化を
図ること、また簡単な構成で混合、気化過程と燃
焼過程を区分けし、実使用上の燃焼雰囲気中の材
料の熱変形・歪の少ないものにするとともに良好
は燃焼特性を得る事を目的とするものである。 The present invention aims to eliminate these conventional drawbacks by reducing noise through laminar combustion using circular combustion flames, and by separating the mixing, vaporization, and combustion processes with a simple configuration, which improves practical use. The purpose is to reduce thermal deformation and distortion of the material in the combustion atmosphere and to obtain good combustion characteristics.
この目的を達成する為に本発明の燃焼装置は、
圧力噴霧による霧化手段を周側面に多数の燃焼孔
を設けた燃焼筒の下部開口部から、燃焼筒内に向
けて臨ませ、且つ燃焼筒の中央部分に、側壁に多
数の空気噴出孔を設けた気化筒を立設し、前記燃
焼筒と気化筒内に燃焼用空気を供給するととも
に、燃焼筒の内面に気化筒との間に予混合領域を
形成する助燃筒を設け、且つ気化筒上部に予混合
ガスを燃焼孔へ移行促進する気化筒径より大なる
促進板を設ける構成である。 In order to achieve this objective, the combustion device of the present invention has the following features:
The atomization means by pressure spray is made to face the inside of the combustion cylinder from the lower opening of the combustion cylinder, which has many combustion holes on the circumferential side, and a large number of air injection holes are provided in the side wall in the center of the combustion cylinder. A carburetor tube provided therein is erected to supply combustion air into the combustion tube and the carburetor tube, and an auxiliary combustion tube is provided on the inner surface of the combustion tube to form a premixing region between the carburetor tube and the carburetor tube. The structure is such that a promotion plate larger than the diameter of the vaporization cylinder is provided at the top to promote the transfer of the premixed gas to the combustion hole.
この構成によつて、燃焼着火時は気化筒からの
旋回空気と圧力噴霧による霧化手段とが混合し拡
散黄火燃焼を行い、その燃焼熱による気化筒表
面、助燃筒、促進板の温度上昇と拡散黄火燃焼炎
への粒子衝突、及び輻射熱により、気化筒と助燃
筒間の予混合領域で混合、気化が促進され、予混
合ガスが促進板にて燃焼筒に向けて導かれ、可燃
空気量となる燃焼筒の燃焼孔の空気にて、着火後
瞬時にて気化層流青炎燃焼を行ない低騒音化を図
る事ができるものである。 With this configuration, when combustion is ignited, swirling air from the carburetor is mixed with the atomization means using pressure spray to perform diffused yellow flame combustion, and the combustion heat increases the temperature of the carburetor's surface, auxiliary combustion pipe, and accelerator plate. Particle collisions with the diffused yellow combustion flame and radiant heat promote mixing and vaporization in the premixing region between the vaporizing tube and the auxiliary combustion tube, and the premixed gas is guided toward the combustion tube by the promoting plate, causing flammable With the amount of air in the combustion hole of the combustion tube, vaporized laminar blue flame combustion is performed instantly after ignition, and noise can be reduced.
また火炎が燃焼筒より中央部に向つて形成して
いる為、水ジヤケツト等による冷却がなく高温燃
焼熱により、未燃ガスの発生の無い良好な燃焼特
性が得られるとともに、燃焼部と混合、気化部と
を分離し、それぞれ独立して構成している為、定
常燃焼中の気化筒の上下表面温度差は火炎の輻射
熱による受熱の為非常に小さなものとなり、熱膨
張差による変形・歪は少ないものとなるものであ
る。 In addition, since the flame is formed from the combustion tube toward the center, there is no cooling with water jackets, etc., and the high-temperature combustion heat provides good combustion characteristics without generating unburned gas. Since the vaporization section is separated from the vaporization section and each is configured independently, the temperature difference between the upper and lower surfaces of the vaporization tube during steady combustion is extremely small due to the heat received by the radiant heat of the flame, and deformation and distortion due to the difference in thermal expansion are minimized. It is something that becomes less.
以下本発明の一実施例を第１図、第２図および
第３図に基づき説明する。 An embodiment of the present invention will be described below with reference to FIGS. 1, 2, and 3.
図において１は霧化手段としてのノズルで、油
タンク〈図示せず〉より送られた燃料油は電磁ポ
ンプ２を介して送油パイプ４を通つてノズル１の
先端より噴霧される。５はノズル１及び送油パイ
プ４と点火装置６を組込んだ支持筒で、周側面に
多数の燃焼孔７を設けた内筒と外筒で構成された
燃焼筒８の下部開口部を介して、ノズル１の先端
と点火装置６の先端を燃焼室９に臨ませるように
設けている。この支持筒５の周壁にはノズル１点
火装置冷却用の給気孔１０が設けられている。１
１へ燃焼室９の中央部に立設した気化筒で、この
気化筒１１の周壁には多数の空気噴出孔１２が設
けられている。更に燃焼筒８の内面に気化筒１１
との間に予混合領域１３を形成する助燃筒１４を
立設し、気化筒１１上部に予混合ガスを燃焼筒８
の燃焼孔７へと搬送促進せしめる気化筒１１の外
径より大なる促進板１５が設けられている。 In the figure, reference numeral 1 denotes a nozzle as an atomizing means, and fuel oil sent from an oil tank (not shown) is sprayed from the tip of the nozzle 1 through an oil feed pipe 4 via an electromagnetic pump 2. Reference numeral 5 denotes a support cylinder incorporating a nozzle 1, an oil pipe 4, and an ignition device 6. The tip of the nozzle 1 and the tip of the ignition device 6 are provided so as to face the combustion chamber 9. An air supply hole 10 for cooling the ignition device of the nozzle 1 is provided in the peripheral wall of the support cylinder 5. 1
1 is a vaporizing cylinder erected in the center of a combustion chamber 9, and a large number of air injection holes 12 are provided in the peripheral wall of this vaporizing cylinder 11. Furthermore, a vaporization tube 11 is provided on the inner surface of the combustion tube 8.
An auxiliary combustion tube 14 that forms a premixing region 13 is installed vertically between the combustion tube 8 and the combustion tube 8.
A promoting plate 15, which is larger than the outer diameter of the vaporizing cylinder 11, is provided to promote the transport of the vapor to the combustion hole 7.
また燃焼用の空気通路はモータ１６、フアン１
７、フアンケース１８で構成される送風機から、
前記気化筒１１への混合、気化用旋回空気流へ、
又燃焼筒８への燃焼用層流空気流へ、更には支持
筒５への送風と通風板１９を介して構成されてい
る。 In addition, the air passage for combustion includes a motor 16 and a fan 1.
7. From the blower consisting of the fan case 18,
Mixing into the vaporization cylinder 11 and swirling air flow for vaporization,
Further, the laminar combustion air flow is directed to the combustion tube 8 and further to the support tube 5 via the ventilation plate 19.
以下、本実施例の動作を説明する。 The operation of this embodiment will be explained below.
燃料粒子は電磁ポンプ２にて油タンクより吸上
げられ加圧された油が送油パイプ４を通つてノズ
ル１より助燃筒１４を介して燃焼室９内に気化筒
１１に向つて噴霧される。 Fuel particles are sucked up from an oil tank by an electromagnetic pump 2, and the pressurized oil is sprayed from a nozzle 1 through an oil feed pipe 4 toward a vaporizer cylinder 11 through an auxiliary combustion cylinder 14 into a combustion chamber 9. .
一方燃焼用空気はモータ１６、フアン１７、フ
アンケース１８で構成される送風機により通風板
を介して、気化筒１１、助燃筒８、支持筒５にそ
れぞれの必要空気量が供給される。 On the other hand, combustion air is supplied to the vaporizing tube 11, the auxiliary combustion tube 8, and the support tube 5 through a ventilation plate by a blower composed of a motor 16, a fan 17, and a fan case 18 in the required amount.
燃焼過程は、ノズル１から噴霧された微粒子は
気化筒１１の空気噴出孔１２からの高速旋回流と
混合され点火装置６により点火、着火される。着
火後、気化筒１１と助燃筒１４間の予混合領域１
３で噴霧粒子と気化筒１１からの旋回空気流とが
混合し、黄火拡散燃焼が行なわれるが、瞬時にし
て拡散燃焼炎の輻射熱により、気化筒１１、助燃
筒１４、促進板１５の温度上昇と拡散燃焼炎への
微粒子の衝突により、予混合領域１３で蒸発、気
化が促進され、予混合ガスが促進板１５にて燃焼
筒８に向かつて導かれ、可燃空気量となる燃焼筒
８の燃焼孔７の空気にて気化青炎燃焼が行なわれ
る。 In the combustion process, fine particles sprayed from the nozzle 1 are mixed with a high-speed swirling flow from the air jet hole 12 of the vaporization cylinder 11, and ignited by the ignition device 6. After ignition, premixing region 1 between the carburetor tube 11 and the auxiliary combustion tube 14
In step 3, the spray particles and the swirling air flow from the vaporization tube 11 mix, and yellow flame diffusion combustion takes place, but the temperature of the vaporization tube 11, auxiliary combustion tube 14, and promotion plate 15 instantly decreases due to the radiant heat of the diffusion combustion flame. Due to the rise and collision of particles with the diffusion combustion flame, evaporation and vaporization are promoted in the premixing region 13, and the premixed gas is guided toward the combustion tube 8 by the promotion plate 15, and the combustion tube 8 becomes a combustible air amount. Vaporization blue flame combustion is carried out in the air in the combustion hole 7.
すなわち、着火後瞬時の予混合領域での黄火拡
散燃焼から定常の燃焼筒からの気化青炎燃焼を行
うものである。 That is, the process changes from yellow flame diffusion combustion in the premixing region instantaneously after ignition to vaporized blue flame combustion from the combustion tube.
このように本発明は混合、蒸発、気化過程と燃
焼過程とを分離し、それぞれ独立して構成する事
により、実使用上の燃焼雰囲気化中を材料の熱膨
張差による熱変形、歪の少ないものが得られると
ともに、円孔層流青炎燃焼による低騒音化が図れ
かつ、未燃ガス発生による一酸化炭素の発生の少
ない良好な燃焼特性が得られる事ができる。 In this way, the present invention separates the mixing, evaporation, vaporization process, and combustion process and configures each independently, thereby minimizing thermal deformation and distortion due to differences in thermal expansion of materials during the actual combustion atmosphere. In addition, it is possible to achieve low noise due to circular hole laminar flow blue flame combustion, and to obtain good combustion characteristics with less carbon monoxide generation due to unburned gas generation.
第１図は本発明の一実施例による燃焼装置の正
面断面図、第２図は第１図のＡ−A′線断面図、
第３図は従来例の燃焼装置の正面断面図である。
７……燃焼孔、８……燃焼筒、１１……気化
筒、１２……空気噴出孔、１３……予混合領域、
１４……助燃筒、１５……促進板。
FIG. 1 is a front sectional view of a combustion device according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line A-A' in FIG.
FIG. 3 is a front sectional view of a conventional combustion device. 7... Combustion hole, 8... Combustion tube, 11... Vaporization tube, 12... Air jet hole, 13... Premixing region,
14... auxiliary combustion tube, 15... promotion plate.
Claims (1)
るとともに、下部に燃料噴出用のノズルを設け、
かつ下部開口部を形成した燃焼筒を設け、前記燃
焼筒の下部開口部中央に立設し、かつ周壁に同一
方向に開口を持つ多数の旋回空気用の噴出孔を設
けた気化筒を設け、前記燃焼筒と気化筒内に燃焼
用空気を供給するとともに、前記気化筒の外周に
助燃筒を設け気化筒との間に予混合領域を形成
し、前記気化筒の上部に予混合ガスを燃焼室へ搬
送促進する気化筒の外径より大なる促進板を設
け、前記予混合領域と燃焼室を分離した燃焼装
置。1. A combustion chamber with many combustion holes is formed on the circumferential side, and a fuel injection nozzle is provided at the bottom.
and a combustion tube having a lower opening formed therein, a vaporization tube erected at the center of the lower opening of the combustion tube and having a plurality of swirling air jet holes with openings in the same direction on a peripheral wall; Combustion air is supplied into the combustion tube and the vaporization tube, and an auxiliary combustion tube is provided on the outer periphery of the vaporization tube to form a premixing region between the vaporization tube and the premixed gas is combusted in the upper part of the vaporization tube. A combustion device in which the premixing region and the combustion chamber are separated by providing a promotion plate larger than the outer diameter of the vaporization cylinder that promotes the transfer to the combustion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4493682A JPS58160726A (en) | 1982-03-19 | 1982-03-19 | Combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4493682A JPS58160726A (en) | 1982-03-19 | 1982-03-19 | Combustion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58160726A JPS58160726A (en) | 1983-09-24 |
| JPS6321084B2 true JPS6321084B2 (en) | 1988-05-02 |
Family
ID=12705360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4493682A Granted JPS58160726A (en) | 1982-03-19 | 1982-03-19 | Combustion device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58160726A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9249704B2 (en) | 2012-08-07 | 2016-02-02 | Hino Motors, Ltd. | Burner for exhaust gas purification devices |
| JP5740056B2 (en) | 2012-08-07 | 2015-06-24 | 日野自動車株式会社 | burner |
| EP2843306A4 (en) | 2012-08-07 | 2015-12-02 | Hino Motors Ltd | Burner for exhaust gas purification devices |
| EP2884175A4 (en) | 2012-08-13 | 2015-10-21 | Hino Motors Ltd | Burner |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5254828U (en) * | 1975-10-20 | 1977-04-20 | ||
| JPS53754U (en) * | 1976-06-23 | 1978-01-06 | ||
| JPS5459637A (en) * | 1977-10-20 | 1979-05-14 | Matsushita Electric Ind Co Ltd | Liquid fuel combustion device |
-
1982
- 1982-03-19 JP JP4493682A patent/JPS58160726A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5254828U (en) * | 1975-10-20 | 1977-04-20 | ||
| JPS53754U (en) * | 1976-06-23 | 1978-01-06 | ||
| JPS5459637A (en) * | 1977-10-20 | 1979-05-14 | Matsushita Electric Ind Co Ltd | Liquid fuel combustion device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58160726A (en) | 1983-09-24 |
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| JPS5934248B2 (en) | combustion device | |
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