JPH03199807A - Liquid fuel combustion device - Google Patents
Liquid fuel combustion deviceInfo
- Publication number
- JPH03199807A JPH03199807A JP34122489A JP34122489A JPH03199807A JP H03199807 A JPH03199807 A JP H03199807A JP 34122489 A JP34122489 A JP 34122489A JP 34122489 A JP34122489 A JP 34122489A JP H03199807 A JPH03199807 A JP H03199807A
- Authority
- JP
- Japan
- Prior art keywords
- liquid fuel
- cylinder
- gasification
- combustion
- gasified
- 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.)
- Pending
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 61
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 56
- 239000007788 liquid Substances 0.000 title claims abstract description 54
- 239000011148 porous material Substances 0.000 claims abstract description 13
- 230000008016 vaporization Effects 0.000 claims description 44
- 238000009834 vaporization Methods 0.000 claims description 36
- 238000000034 method Methods 0.000 abstract description 2
- 238000002309 gasification Methods 0.000 abstract 11
- 239000006185 dispersion Substances 0.000 abstract 2
- 239000012530 fluid Substances 0.000 abstract 1
- 230000001788 irregular Effects 0.000 abstract 1
- 239000006200 vaporizer Substances 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000000889 atomisation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 244000249914 Hemigraphis reptans Species 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（イ〉産業上の利用分野
この発明は、温水ボイラ、給湯機、暖房機などの熱源と
して利用され、灯油等の液体燃料を気化させ、これを予
め空気と混合させて燃料と空気の混合ガスを発生させ燃
焼させる液体燃料燃焼装置に関するものである。[Detailed description of the invention] (A) Industrial application field This invention is used as a heat source for hot water boilers, water heaters, space heaters, etc., and vaporizes liquid fuel such as kerosene and mixes it with air in advance. This invention relates to a liquid fuel combustion device that generates and burns a mixed gas of fuel and air.
（口〉従来の技術
液体燃料燃焼装置の従来技術としては、特公平１−２７
３２７号公報に記載されているものかあり、これは横方
向に設けられた燃焼筒内に、燃焼筒の基部側に開口させ
た気化筒を設け、更にこの気化筒の内部に液体燃料霧化
用の円錐状の拡散体を設け、拡散体で液体燃料を微粒子
状で拡散した後、気化筒の熱で気化させ、−次空気と混
合させた後燃焼させている液体燃料燃焼装置である。(Example) Conventional technology The conventional technology for liquid fuel combustion equipment is
There is a method described in Publication No. 327, in which a vaporization tube opened on the base side of the combustion tube is installed in a combustion tube installed in the horizontal direction, and a liquid fuel atomization tube is further installed inside this vaporization tube. This is a liquid fuel combustion device in which a conical diffuser is provided, and after the liquid fuel is diffused in the form of fine particles by the diffuser, it is vaporized by the heat of the vaporization cylinder, mixed with secondary air, and then combusted.
また、この液体燃料燃焼装置と同種のものに気化筒が燃
焼筒内に固定されたものもある。Furthermore, there is also a device similar to this liquid fuel combustion device in which a vaporization tube is fixed within the combustion tube.
（ハ〉発明が解決しようとする課題
前述した液体燃料燃焼装置では、気化筒の内面、つまり
拡散された液体燃料の当たる面が平滑であるため、液体
燃料と気化面との接触面積が小さく、燃焼開始直後から
通常の燃焼に達するまでの不安定な燃焼での時間が長く
かかるという欠点があった。(C) Problems to be Solved by the Invention In the liquid fuel combustion device described above, the inner surface of the vaporization tube, that is, the surface that the diffused liquid fuel comes into contact with, is smooth, so the contact area between the liquid fuel and the vaporization surface is small. There was a drawback that it took a long time to reach normal combustion due to unstable combustion immediately after the start of combustion.
また、前記燃焼開始直後は気化筒が充分に加熱されてい
ないため、燃焼筒の内面に拡散された液体燃料の気化が
遅れると共に、未気化状態の液体燃料が気化筒外へ流下
することも有る。この液体燃料が燃焼筒で赤火燃焼する
と、燃焼筒にすすが−
付着し、これが燃焼不良の原因となるという欠点があっ
た。In addition, since the vaporization cylinder is not sufficiently heated immediately after the combustion starts, the vaporization of the liquid fuel diffused on the inner surface of the combustion cylinder is delayed, and unvaporized liquid fuel may flow out of the vaporization cylinder. . When this liquid fuel combusts in the combustion tube, soot adheres to the combustion tube, which causes poor combustion.
この発明は、燃焼開始直後のように気化筒が充分に加熱
されていないときでも、液体燃料が気化し易く、かつ、
未気化の液体燃料があってもこの液体燃料が気化筒外へ
流下しにくい液体燃料燃焼装置を提供するものである。This invention allows liquid fuel to easily vaporize even when the vaporization cylinder is not sufficiently heated, such as immediately after the start of combustion, and
To provide a liquid fuel combustion device in which even if there is unvaporized liquid fuel, the liquid fuel does not easily flow out of the vaporization cylinder.
（ニ）課題を解決するための手段
この発明は前述した課題を解決するために、横向きに配
置された燃焼筒内に、この燃焼筒の基部側に開口させて
固定された底のある円筒状の気化筒と、この気化筒内に
設けられている燃料霧化用の拡散体とを備えた液体燃料
燃焼装置において、前記気化筒の内側面に耐熱性を有し
ている多孔質材ノコ−ティングを施したものである。(d) Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a cylindrical shape with a bottom that is fixed in a combustion cylinder arranged laterally with an opening on the base side of the combustion cylinder. In a liquid fuel combustion device comprising a vaporizing cylinder and a diffuser for fuel atomization provided in the vaporizing cylinder, a porous material having heat resistance is used on the inner surface of the vaporizing cylinder. It has been given a tinge.
あるいは、気化筒の内側面に金網を設けたものである。Alternatively, a wire mesh is provided on the inner surface of the vaporizing cylinder.
（ホ）作用
この発明による液体燃料燃焼装置においては、燃焼開始
時のように気化筒が充分に加熱されていないとき等に未
気化状態の液体燃料があれば、この液体燃料が気化筒内
壁を流下する。(E) Function In the liquid fuel combustion apparatus according to the present invention, if there is liquid fuel in an unvaporized state when the vaporization cylinder is not sufficiently heated, such as at the start of combustion, this liquid fuel will cover the inner wall of the vaporization cylinder. Flow down.
しかし、前記気化筒内に多孔質材あるいは金網を有して
いるので、気化筒の気化面が増大したと同じ働きがあり
、気化筒の内面と液体燃料との接触面が大きく、気化筒
の熱が未気化状態の液体燃料に伝わり易く、液体燃料が
蒸発し易い。However, since the vaporization cylinder has a porous material or a wire mesh, it has the same effect as increasing the vaporization surface of the vaporization cylinder, and the contact surface between the inner surface of the vaporization cylinder and the liquid fuel is large, and the vaporization cylinder has a large contact surface with the liquid fuel. Heat is easily transferred to the unvaporized liquid fuel, and the liquid fuel is easily evaporated.
また、多孔質材あるいは金網の凹凸部分で、未気化状態
の液体燃料が保持されるため、気化筒外へ、つまり、燃
焼筒へ液体燃料が流下しにくい。In addition, since the unvaporized liquid fuel is retained by the porous material or the uneven portions of the wire mesh, the liquid fuel is difficult to flow out of the vaporization cylinder, that is, into the combustion cylinder.
（へ）実施例 この発明の実施例を図面と共に説明する。(f) Example Embodiments of the invention will be described with reference to the drawings.
第１図において、燃焼筒（１）は先端部を互いに結合し
た有底円筒状の内筒（２）及び外筒（３〉からなり、内
筒（２）と外筒（３〉との間に蓄気室（４〉を形成して
いる。また、内筒〈２〉の底壁（５）周縁部及び周壁（
６〉上部にはそれぞれ多数の一次空気孔（７）及び二次
空気孔（８〉が設けられるとともに、外筒（３）の底壁
（９）中央部には空気供給口（１０）が設けられている
。外筒（３）の底壁（９）にはファンケース（１１）が
３−
連結されている。このファンケース（１１）は空気吸込
口（１２）を有し、この空気吸込口（１２）から燃焼用
空気を吸入する送風ファン（１３〉と、送風ファン〈１
３）をモータ軸（１４）にて駆動するバーナモータ（１
５）とを収納している。燃焼筒（１）内の先部には燃焼
筒（１）の底壁側にて開口させた円筒状の気化筒（１６
）が固定金Ａ（２２）にて内Ｍ （２＞に固定されてい
る。そし〔、気化筒（１６）の内部にはモータ軸（１４
〉に取付けられた燃料霧化用の拡散体（１７）と、点火
プラグからなる点火装置（１８〉とを臨ませである。In Fig. 1, the combustion cylinder (1) consists of a bottomed cylindrical inner cylinder (2) and an outer cylinder (3>) whose tips are joined to each other, and between the inner cylinder (2) and the outer cylinder (3>). An air storage chamber (4) is formed in the bottom wall (5) of the inner cylinder (2).
6> A large number of primary air holes (7) and secondary air holes (8> are provided in the upper part, respectively, and an air supply port (10) is provided in the center of the bottom wall (9) of the outer cylinder (3). A fan case (11) is connected to the bottom wall (9) of the outer cylinder (3).The fan case (11) has an air suction port (12). A blower fan (13) that sucks combustion air from the mouth (12) and a blower fan <1
3) with a motor shaft (14).
5) It stores. At the tip of the combustion tube (1), there is a cylindrical vaporization tube (16) that opens on the bottom wall side of the combustion tube (1).
) is fixed to the inner M (2>) with a fixing metal A (22).Then, inside the carburetor cylinder (16) is a motor shaft (14
The diffuser (17) for fuel atomization attached to the ignition device (18) consisting of a spark plug is shown.
また、拡散体（１７〉の近傍には先端部にノズルを有す
る燃料供給管（１９）が設けられ、燃焼筒（１）内の二
次空気孔（８〉の近傍にはフレームロンドからなる火炎
検出器（２０）が設けられている。また、内筒（２〉の
開口端部には二次空気孔（８〉から吐出される二次空気
の流れを燃焼筒（１）内の底壁側へ偏向させる保炎リン
グ（２１）が取付けられている。（２３）は点火装置用
のトランスである。In addition, a fuel supply pipe (19) having a nozzle at the tip is provided near the diffuser (17>), and a flame rond consisting of a flame rond is provided near the secondary air hole (8>) in the combustion tube (1). A detector (20) is provided at the open end of the inner cylinder (2>) to direct the flow of secondary air discharged from the secondary air hole (8>) to the bottom wall of the combustion cylinder (1). A flame holding ring (21) is attached to deflect the flame to the side. (23) is a transformer for the igniter.
また、第２図及び第３図に示す気化＃（１６＞の内側の
周側部（２４）には耐熱性を有している多孔質材（２５
）、例えば、酸化クロム、二酸化マンガン、シノ力等の
金属酸化物と、バインダーとして有機高分子シリコーン
化合物が含有されている耐熱性塗料等がコーティングさ
れている。In addition, a heat-resistant porous material (25
), for example, is coated with a heat-resistant paint containing a metal oxide such as chromium oxide, manganese dioxide, or Shinoriki, and an organic polymer silicone compound as a binder.
第４図、第５図には気化筒（３０）の内側の周側部（３
１）に金網（３２〉が接合されている例を示す。Figures 4 and 5 show the inner peripheral side part (30) of the vaporizer cylinder (30).
An example is shown in which a wire mesh (32>) is joined to 1).
このように構成された液体燃料燃焼装置においては、燃
焼開始直後は気化筒（１６）が充分に加熱されていない
ため、回転する拡散体（１７）によって微粒化状態で拡
散された液体燃料のうち気化筒（１６）内で気化できな
いものもあり、この未気化状態の液体燃料が気化筒（１
６）（３０＞内壁を流下する。気化筒（１６）（３０）
内の周側部（２４）＜３１）には多孔質材（２５〉、あ
るいは金網（３２）が設けられているので、この多孔質
材（２５）あるいは金網〈３２〉により気化筒〈１６＞
（３０）の周側部（２４）（３２）の伝熱面が増大した
ことと同じ効果があるため、気化筒（１６）（３０）内
の未気化の液体燃料と気化筒（１６）（３０）との接触
面が大きく、未気化の液体燃料が気化し易い。In the liquid fuel combustion device configured in this way, the vaporization cylinder (16) is not sufficiently heated immediately after the start of combustion, so that some of the liquid fuel dispersed in an atomized state by the rotating diffuser (17) Some fuel cannot be vaporized in the vaporization tube (16), and this unvaporized liquid fuel is transferred to the vaporization tube (16).
6) (30> Flows down the inner wall. Vaporizer cylinder (16) (30)
A porous material (25) or a wire mesh (32) is provided on the inner peripheral side portion (24) <31), so that the vaporization tube <16> is
(30) has the same effect as increasing the heat transfer surface of the peripheral side parts (24) and (32), so the unvaporized liquid fuel in the vaporization tubes (16) and (30) and the vaporization tubes (16) and 30) is large, and unvaporized liquid fuel is easily vaporized.
また、多孔質材（２５）、あるいは金網（３２〉の凹凸
５−
−
部で未気化の液体燃料が保持される働きがあるため、気
化筒（１６）（３０）外へ、つまり、燃焼筒（１）内へ
液体燃料が流下しにくい。In addition, since the porous material (25) or the irregularities 5-- of the wire mesh (32) have the function of retaining unvaporized liquid fuel, it flows out of the vaporization tube (16) (30), that is, into the combustion tube. (1) Liquid fuel is difficult to flow into the interior.
このように、この発明による液体燃料燃焼装置では、未
気化の液体燃料の気化を促進する働きと、液体燃料が気
化筒外の燃焼筒内へ流下して赤火で燃焼することを防止
する働きがあるため、燃焼開始直後の気化筒が充分に加
熱されていないときの燃焼の不安定な時間を短縮し、良
好な燃焼を早く得ることが可能となる。As described above, the liquid fuel combustion device according to the present invention has two functions: one to promote the vaporization of unvaporized liquid fuel, and the other to prevent the liquid fuel from flowing into the combustion cylinder outside the vaporization cylinder and being combusted with red flame. Therefore, it is possible to shorten the period of unstable combustion when the vaporizer cylinder is not sufficiently heated immediately after the start of combustion, and to quickly obtain good combustion.
また、第６図に気化筒〈１６〉内の周側部全体に多孔質
材のコーティングが施された例を示し、第７図に気化筒
（３０〉内の周側部全体に金網を接合した例を示す。In addition, Fig. 6 shows an example in which the entire circumferential side of the vaporizing tube (16) is coated with a porous material, and Fig. 7 shows a wire mesh bonded to the entire circumferential side of the vaporizing tube (30). Here is an example.
（ト）発明の詳細
な説明したように、この発明による液体燃料燃焼装置で
は、気化筒の内面に耐熱性を有する多孔質材、あるいは
金網を備えた構成であるため、未気化の液体燃料が気化
し易く、かつ、未気化の液体燃料があっても気化筒外の
燃焼筒へ流れにくい。(G) As described in detail, the liquid fuel combustion device according to the present invention has a structure in which the inner surface of the vaporization cylinder is provided with a heat-resistant porous material or a wire mesh, so that unvaporized liquid fuel is It is easy to vaporize, and even if there is unvaporized liquid fuel, it is difficult to flow into the combustion tube outside the vaporization tube.
このため、本発明によると、燃焼開始直後の、気化筒が
充分に加熱されていなくて燃焼が不安定となる時間を短
縮し、早く通常の燃焼になる液体燃料燃焼装置を提供で
きる。Therefore, according to the present invention, it is possible to provide a liquid fuel combustion apparatus that shortens the time immediately after the start of combustion when combustion becomes unstable due to insufficient heating of the vaporizing cylinder, and quickly returns to normal combustion.
第１図は本発明による液体燃料燃焼装置の縦断面図、第
２図は同液体燃料燃焼装置における気化筒の正面図、第
３図は第２図における■−■線断面図、第４図は本発明
による液体燃料燃焼装置の他の実施例における気化筒の
正面図、第５図は第４図におけるｖ−ｖ線断面図、第６
図は気化筒の縦断面図、第７図は他の実施例における気
化筒の縦断面図である。
（１）・・・燃焼筒、 （１６）・・・気化筒、 （１
７）・・・拡散体、 （２４〉・・・周側部［内面コ、
（２５〉・・・多孔質材、 （３０〉・・・気化筒、
（３１）・・・周側部［内面コ、〈３２〉・・・金網
。FIG. 1 is a longitudinal cross-sectional view of a liquid fuel combustion device according to the present invention, FIG. 2 is a front view of a vaporizing cylinder in the liquid fuel combustion device, FIG. 3 is a cross-sectional view taken along the line ■-■ in FIG. 2, and FIG. 5 is a front view of a vaporization cylinder in another embodiment of the liquid fuel combustion device according to the present invention, FIG. 5 is a sectional view taken along the line v-v in FIG. 4, and FIG.
The figure is a longitudinal cross-sectional view of the vaporizer cylinder, and FIG. 7 is a longitudinal cross-sectional view of the vaporizer cylinder in another embodiment. (1)... Combustion tube, (16)... Vaporization tube, (1
7)...diffuser, (24>...peripheral side [inner surface,
(25>... porous material, (30>... vaporizer cylinder,
(31) ... Peripheral side part [inner surface, <32> ... Wire mesh.
Claims (1)
に開口して固定された有底円筒状の気化筒と、この気化
筒に臨ませた燃料拡散体とを備えた液体燃料燃焼装置に
おいて、前記気化筒の内面に耐熱性を有している多孔質
材、あるいは金網を備えていることを特徴とする液体燃
料燃焼装置。(1) Liquid fuel combustion equipped with a combustion tube arranged horizontally, a bottomed cylindrical vaporization tube opened and fixed to the base side of the combustion tube, and a fuel diffuser facing the vaporization tube A liquid fuel combustion device, characterized in that the inner surface of the vaporization cylinder is provided with a heat-resistant porous material or a wire mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34122489A JPH03199807A (en) | 1989-12-27 | 1989-12-27 | Liquid fuel combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34122489A JPH03199807A (en) | 1989-12-27 | 1989-12-27 | Liquid fuel combustion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03199807A true JPH03199807A (en) | 1991-08-30 |
Family
ID=18344345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34122489A Pending JPH03199807A (en) | 1989-12-27 | 1989-12-27 | Liquid fuel combustion device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03199807A (en) |
-
1989
- 1989-12-27 JP JP34122489A patent/JPH03199807A/en active Pending
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