JPH04190006A - Spray burner - Google Patents
Spray burnerInfo
- Publication number
- JPH04190006A JPH04190006A JP31923990A JP31923990A JPH04190006A JP H04190006 A JPH04190006 A JP H04190006A JP 31923990 A JP31923990 A JP 31923990A JP 31923990 A JP31923990 A JP 31923990A JP H04190006 A JPH04190006 A JP H04190006A
- Authority
- JP
- Japan
- Prior art keywords
- combustion
- air
- fuel
- air chamber
- 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.)
- Pending
Links
- 239000007921 spray Substances 0.000 title claims description 26
- 238000002485 combustion reaction Methods 0.000 claims abstract description 87
- 239000000446 fuel Substances 0.000 claims abstract description 64
- 238000002347 injection Methods 0.000 claims abstract description 31
- 239000007924 injection Substances 0.000 claims abstract description 31
- 239000003381 stabilizer Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract 1
- 230000035515 penetration Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
Landscapes
- Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は噴霧量可変式の燃料噴射弁から燃焼筒内に燃料
を噴霧して燃焼させる噴Ｎ燃焼器に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an N injection combustor that sprays fuel into a combustion cylinder from a variable spray amount fuel injection valve for combustion.
〈従来技術とその課題〉
従来の噴霧燃焼器として、例えば第２図のように、−次
空気を旋回羽根３１の本体部分３１ａを通して燃焼筒３
２内に供給し、二次空気を燃焼筒３２のルーバ・スリッ
ト３３および孔３４を通して燃焼筒３２内に供給して、
燃料噴射弁３５から噴霧された燃料を旋回羽根３１の中
心孔３１ｂを通して燃焼筒３２内に供給する構成のもの
があった。しかしながらこのような構成では、燃料噴射
弁３５を後退させて燃焼筒３２内への燃料の噴霧量を絞
った場合に、燃料の貫通力が弱くなり、火炎の安定性が
悪くなるという問題があった。また図示のように、燃料
噴射弁３５と噴霧カッター３６との距離を調節して燃料
噴射弁３５から噴霧された燃料の一部を噴霧カッター３
６により遮断することによって燃焼筒３２への燃料の噴
霧量を調整する方式の噴霧燃焼器の場合、旋回羽根３１
の本体部分３１ａを通過した一次空気により燃焼筒３２
内に形成される再循環領域による流れによって噴霧カッ
ター３６を汚してしまうという問題もあった・
そこで第３図のように、−次空気を旋回羽根３９の本体
部分３９ａと中心孔３９ｂとを通して燃焼筒４０内に供
給し、二次空気を燃焼筒４０の孔４１を通して燃焼筒４
０内に供給して、燃料噴射弁４２から噴霧された燃料を
一次空気と共に旋回羽根３９の中心孔３９ｂを通して燃
焼筒４０内に供給する構成のものが提案されている。し
かしながらこのような構成では、旋回羽根３９の本体部
分３９ａを通る燃焼用空気と中心孔３９ｂを通る燃焼用
空気とが分離されておらず、旋回羽根３９の本体部分３
９ａの抵抗が大きいため、中心孔３９ｂを通る一次空気
の量が多く、その結果燃焼筒４０内に充分な旋回流が発
生しなくなり、かえって保炎性が悪くなるという問題が
あった。<Prior art and its problems> As a conventional spray combustor, for example, as shown in FIG.
2, supplying secondary air into the combustion tube 32 through the louver slit 33 and hole 34 of the combustion tube 32,
There is a configuration in which fuel sprayed from the fuel injection valve 35 is supplied into the combustion cylinder 32 through the center hole 31b of the swirl vane 31. However, with this configuration, there is a problem that when the fuel injection valve 35 is moved back to reduce the amount of fuel sprayed into the combustion tube 32, the penetration force of the fuel becomes weak and the stability of the flame deteriorates. Ta. Further, as shown in the figure, by adjusting the distance between the fuel injection valve 35 and the spray cutter 36, a part of the fuel sprayed from the fuel injection valve 35 is transferred to the spray cutter 3.
In the case of a spray combustor of a type in which the amount of fuel sprayed into the combustion tube 32 is adjusted by shutting it off by the swirl vane 31
The primary air that has passed through the main body portion 31a of the combustion tube 32
There was also the problem that the spray cutter 36 was contaminated by the flow caused by the recirculation area formed within the spray cutter 36.Therefore, as shown in FIG. Secondary air is supplied into the combustion tube 40 through the hole 41 of the combustion tube 40.
A configuration has been proposed in which the fuel sprayed from the fuel injection valve 42 is supplied into the combustion cylinder 40 through the center hole 39b of the swirl vane 39 together with the primary air. However, in such a configuration, the combustion air passing through the main body portion 39a of the swirl vane 39 and the combustion air passing through the center hole 39b are not separated, and the combustion air passing through the main body portion 39a of the swirl vane 39 is not separated.
Since the resistance of the combustion chamber 9a is large, the amount of primary air passing through the center hole 39b is large, and as a result, a sufficient swirling flow is not generated within the combustion tube 40, resulting in a problem in that flame stability deteriorates.
〈目的〉
そこで本発明は上記従来技術の欠点を解消し、燃焼筒内
への燃料の噴霧量を絞った場合でも安定な火炎を形成さ
せることができる噴霧燃焼器の提供を目的とする。<Purpose> Therefore, the present invention aims to eliminate the drawbacks of the above-mentioned prior art and provide a spray combustor that can form a stable flame even when the amount of fuel sprayed into the combustion cylinder is reduced.
く課題を解決するための手段〉
本発明のＴ１Ｂ霧燃焼器は、中心部に中心孔を有する保
炎器としての旋回羽根と、この旋回羽根の中心孔を通し
て燃焼筒内に燃料を噴霧する噴霧量可変式の燃料噴射弁
とを有する噴霧燃焼器において、前記旋回羽根の中心孔
を介して燃焼筒内に連通ずる第１の空気室と、前記旋回
羽根の本体部分を介して燃焼筒内に連通ずる第２の空気
室とを互いムこ独立に設け、前記旋回羽根の中心孔を通
る燃焼用空気と前記旋回羽根の本体部分を通る燃焼用空
気とを分離したことを特徴としている。Means for Solving the Problems> The T1B mist combustor of the present invention includes a swirling vane as a flame stabilizer having a central hole in the center, and a sprayer that sprays fuel into the combustion cylinder through the central hole of the swirling vane. In a spray combustor having a variable amount fuel injection valve, a first air chamber communicates with the inside of the combustion cylinder through the center hole of the swirl vane, and a first air chamber that communicates with the inside of the combustion cylinder through the main body of the swirl vane. The present invention is characterized in that a second air chamber that communicates with the other air chambers is provided independently of each other, and combustion air passing through the center hole of the swirling vane and combustion air passing through the main body portion of the swirling vane are separated.
〈作用〉
第１の空気室から旋回羽根の中心孔を通って燃焼筒内に
流入する一次空気により、燃料噴射弁から噴霧された燃
料に貫通力が与えられる。また第１の空気室とは独立に
形成された第２の空気室から旋回羽根の本体部分を通っ
て燃焼筒内に流入する二次空気が、充分な旋回流となっ
て良好に再循環領域を形成する。したがって、燃焼筒内
への燃料の噴霧量を絞った場合でも安定な火炎を形成さ
せることができる。<Operation> The primary air flowing into the combustion cylinder from the first air chamber through the center hole of the swirl vane imparts a penetrating force to the fuel sprayed from the fuel injection valve. In addition, the secondary air flowing into the combustion cylinder from the second air chamber formed independently of the first air chamber through the main body of the swirl vane becomes a sufficient swirling flow to form a good recirculation area. form. Therefore, even when the amount of fuel sprayed into the combustion cylinder is reduced, a stable flame can be formed.
〈実施例〉 以下、本発明の一実施例を第１図に基づいて説明する。<Example> Hereinafter, one embodiment of the present invention will be described based on FIG.
第１図は本発明の一実施例における噴霧燃焼器の概略断
面図で、ノズル取り付はフランジ１は、円環板状の本体
部１ａと、本体部１ａの内周から一体に突設された円筒
部１ｂと、本体部１ａの一方の面から一体に突設された
円筒状の環状フランジ部ＩＣとにより構成されている。FIG. 1 is a schematic cross-sectional view of a spray combustor according to an embodiment of the present invention, in which a flange 1 for mounting a nozzle is formed by integrally protruding from an annular plate-shaped main body portion 1a and an inner periphery of the main body portion 1a. The main body part 1a includes a cylindrical part 1b and a cylindrical annular flange part IC integrally projecting from one surface of the main body part 1a.
ノズル取り付はフランジ１の一方の面には、はぼ円筒状
の一次空気筒２と、−次空気筒２に所定間隔をあけて外
嵌するほぼ円筒状の二次空気筒３と、二次空気筒３に所
定間隔をあけて外嵌するほぼ円筒状の外筒４とが取り付
けられており、ノズル取り付はフランジｌの他方の面に
は、はぼ円筒状の空気流入筒５が取り付けられている。The nozzle is mounted on one side of the flange 1 with a substantially cylindrical primary air cylinder 2, an approximately cylindrical secondary air cylinder 3 that fits externally to the secondary air cylinder 2 at a predetermined interval, and A substantially cylindrical outer cylinder 4 is attached to the outer air cylinder 3 at a predetermined interval, and a substantially cylindrical air inflow cylinder 5 is attached to the other surface of the flange l for nozzle mounting. installed.
ノズル取り付はフランジ１の一方の面の外周部には円環
板状の環状板６が取り付けられている。−次空気筒２は
、一端部に先すぼまり状のコーン部２ａを一体に有して
おり、他端部がノズル取り付はフランジ１の環状フラン
ジ部ＩＣに外嵌している。二次空気筒３は、一端部に円
環板状の環状板部３ａを一体に有しており、他端部が環
状板６に内嵌している。外筒４は、一端部に円環板状の
環状板部４ａを一体に有しており、他端部が環状板６に
当接している。空気流入筒５は、一端部がノズル取り付
はフランジ１の本体部１ａに当接しており、他端部に空
気流入筒５の他端を閉塞する円板部５ａを一体に有して
いる。外筒４の一端部にはほぼ円筒状の燃焼筒７が所定
間隔をあけて内嵌しており、燃焼筒７の一端は外筒４の
環状板部４ａの内周に固着されている。燃焼筒７の他端
部には先すぼまり状のスワラ・コーン部７ａが形成され
ており、燃焼筒７の他端は二次空気筒３の環状板部３ａ
に固着されている。二次空気筒３と燃焼筒７との間には
保炎器としての旋回羽根８が配置されており、旋回羽根
８の本体部分８ａの中心部には円形の中心孔８ｂが形成
されている。旋回羽根８の本体部分８ａの外周は二次空
気筒３の環状板部３ａの内周に固着されており、本体部
分８ａの内周は−次空気筒２のコーン部２ａの内周に固
着されている。ノズル取り付はフランジ１の円筒部１ｂ
にはほぼ円筒状のノズルガイド９が内嵌しており、ノズ
ルガイド９にはほぼ円筒状のノズルアダプタ１０が第１
図の左右方向に移動可能に内嵌している。ノズルアダプ
タ１０の一端部には燃料を噴霧する燃料噴射弁１１が取
り付けられており、ノズルガイド９には、燃料噴射弁１
１の噴射口から噴霧された燃料の一部を遮断して燃焼量
を調節するための噴霧カッター１３と、燃料に着火する
ためのイグナイタ１４とが取り付けられている。燃料噴
射弁１１には空気流入筒５の円板部５ａを貫通する燃料
供給管１５とノズルアダプタ１０とを介して図外の燃料
供給装置から燃料が圧送され、噴霧カッター１３により
遮断された燃料はノズルガイド９および空気流入筒５を
貫通する燃料回収管１６を介して回収される。空気流入
筒５には図外の燃焼用空気供給装置に接続された燃焼用
空気供給管１７が接続されており、イグナイタ１４には
リード線１８が接続されている。以上の構成により、空
気流入筒５とノズル取り付はフランジ１とにより囲まれ
た燃焼用空気室２０と、−次空気筒２とノズル取り付は
フランジ１とにより囲まれて旋回羽根８の中心孔８ｂを
介して燃焼筒７内に連通ずる第１の空気室２１と、二次
空気筒３とノズル取り付はフランジ１と一次空気筒２と
により囲まれて旋回羽根８の本体部分８ａを介して燃焼
筒７内に連通ずる第２の空気室２２と、外筒４とノズル
取り付はフランジ１と二次空気筒３と燃焼筒７とにより
囲まれた第３の空気室２３とが形成されている。ノズル
取り付はフランジ１の本体部１ａには、燃焼用空気室２
０と第１の空気室２１とを連通させる複数の整流空気孔
２４と、燃焼用空気室２０と第２の空気室２２とを連通
させる複数の整流空気孔２５と、燃焼用空気室２０と第
３の空気室２３とを連通させる複数の整流空気孔２６と
が形成されており、整流空気孔２６は環状板６に形成さ
れた孔を介して第３の空気室２３に連通している。燃焼
筒７には、一端部に多数の孔２８が形成されていると共
に、中間部に多数のルーバ・スリット２９が形成されて
いる。For mounting the nozzle, an annular plate 6 in the form of an annular plate is attached to the outer periphery of one surface of the flange 1. - The secondary air cylinder 2 integrally has a tapered cone portion 2a at one end, and the other end is fitted onto the annular flange portion IC of the flange 1 for mounting the nozzle. The secondary air cylinder 3 has an annular plate portion 3a integrally formed at one end, and the other end is fitted into the annular plate 6. The outer cylinder 4 integrally has an annular plate portion 4a in the shape of an annular plate at one end, and the other end is in contact with the annular plate 6. The air inflow cylinder 5 has one end in contact with the main body part 1a of the flange 1 when the nozzle is attached, and the other end integrally has a disk part 5a that closes the other end of the air inflow cylinder 5. . A substantially cylindrical combustion tube 7 is fitted into one end of the outer tube 4 at a predetermined interval, and one end of the combustion tube 7 is fixed to the inner periphery of the annular plate portion 4a of the outer tube 4. A swirler cone portion 7a with a tapered tip is formed at the other end of the combustion tube 7, and the other end of the combustion tube 7 is formed with an annular plate portion 3a of the secondary air cylinder 3.
is fixed to. A swirling vane 8 as a flame stabilizer is arranged between the secondary air cylinder 3 and the combustion cylinder 7, and a circular center hole 8b is formed in the center of the main body portion 8a of the swirling vane 8. . The outer periphery of the main body portion 8a of the swirl vane 8 is fixed to the inner periphery of the annular plate portion 3a of the secondary air cylinder 3, and the inner periphery of the main body portion 8a is fixed to the inner periphery of the cone portion 2a of the secondary air cylinder 2. has been done. The nozzle is attached to the cylindrical part 1b of the flange 1.
A substantially cylindrical nozzle guide 9 is fitted into the nozzle guide 9, and a substantially cylindrical nozzle adapter 10 is fitted into the nozzle guide 9.
It is fitted inside so that it can move in the left and right directions in the figure. A fuel injection valve 11 that sprays fuel is attached to one end of the nozzle adapter 10, and a fuel injection valve 11 that sprays fuel is attached to the nozzle guide 9.
A spray cutter 13 for cutting off part of the fuel sprayed from one injection port to adjust the amount of combustion, and an igniter 14 for igniting the fuel are attached. Fuel is fed under pressure to the fuel injection valve 11 from a fuel supply device (not shown) via a fuel supply pipe 15 penetrating the disc portion 5a of the air inflow cylinder 5 and a nozzle adapter 10, and the fuel is cut off by the spray cutter 13. is recovered via a fuel recovery pipe 16 that passes through the nozzle guide 9 and the air inflow cylinder 5. A combustion air supply pipe 17 connected to a combustion air supply device (not shown) is connected to the air inlet cylinder 5, and a lead wire 18 is connected to the igniter 14. With the above configuration, the air inflow cylinder 5 and the nozzle mounting are surrounded by the flange 1, and the combustion air chamber 20 is surrounded by the flange 1. The first air chamber 21 communicating with the combustion cylinder 7 through the hole 8b, the secondary air cylinder 3, and the nozzle mounting are surrounded by the flange 1 and the primary air cylinder 2, and the main body portion 8a of the swirl vane 8 is surrounded by the flange 1 and the primary air cylinder 2. A second air chamber 22 communicates with the combustion tube 7 through the outer tube 4, a third air chamber 23 surrounded by the flange 1, the secondary air cylinder 3, and the combustion tube 7. It is formed. The nozzle is attached to the main body 1a of the flange 1, with a combustion air chamber 2
0 and the first air chamber 21, a plurality of rectifying air holes 25 that communicate the combustion air chamber 20 and the second air chamber 22, and the combustion air chamber 20. A plurality of rectifying air holes 26 are formed to communicate with the third air chamber 23, and the rectifying air holes 26 communicate with the third air chamber 23 via holes formed in the annular plate 6. . The combustion tube 7 has a number of holes 28 formed at one end thereof, and a number of louver slits 29 formed at its middle part.
次に動作を説明する。燃料供給管１５とノズルアダプタ
１０とを介して燃料噴射弁１１に供給された燃料は、燃
料噴射弁１１の噴射口から噴霧され、旋回羽根８の中心
孔８ｂを通って燃焼筒７内に流入する。このとき、ノズ
ルアダプタ１ｏを図示の位置よりも右側に後退させてお
くと、燃料噴射弁１１がノズルアダプタ１０と一体に後
退し、燃料噴射弁１１の噴射口から噴霧された燃料の一
部が噴霧カッター１３によって遮られ、燃料回収管１６
を介して回収されるので、燃焼筒７内への燃料の噴霧量
が減少する。この減少量は燃料噴射弁１１の位置によっ
て決まる。一方、燃焼用空気供給管１７を介して燃焼用
空気室２ｏに圧送された燃焼用空気は、整流板を兼ねた
ノズル取り付はフランジ１の本体部１ａに形成された整
流空気孔２４を通って第１の空気室２１に供給され、燃
料噴射弁１１から噴霧された燃料と共に一次空気として
旋回羽根８の中心孔８ｂを通って燃焼筒７内に流入する
。したがって燃焼筒７内への燃料の噴霧量が少ない場合
でも、−次空気により燃料に充分な貫通力を与えること
ができる。また燃焼用空気室２０の燃焼用空気は、二次
空気として整流空気孔２５を通って第２の空気室２２に
供給され、旋回羽根８の本体部分８ａを通過することに
より旋回流となって燃焼筒７内に流入し、燃焼筒７のス
ワラ・コーン部７ａにより円滑な流れを促進されて、再
循環領域を形成する。この二次空気は一次空気筒２によ
り一次空気と完全に分離されているので、抵抗の小さい
旋回羽根８の中心孔８ｂに逃げてしまうことがなく、燃
焼筒７内に充分な旋回流を形成できる。また燃焼用空気
室２０の燃焼用空気は、整流空気孔２６を通って第３の
空気室２３に供給され、孔２８とルーバ・スリット２９
とを通って三次空気として燃焼筒７内に流入する。Next, the operation will be explained. The fuel supplied to the fuel injection valve 11 via the fuel supply pipe 15 and the nozzle adapter 10 is sprayed from the injection port of the fuel injection valve 11, and flows into the combustion cylinder 7 through the center hole 8b of the swirl vane 8. do. At this time, if the nozzle adapter 1o is moved back to the right from the illustrated position, the fuel injection valve 11 will move back together with the nozzle adapter 10, and a part of the fuel sprayed from the injection port of the fuel injection valve 11 will be Interrupted by spray cutter 13, fuel recovery pipe 16
Since the fuel is recovered through the combustion chamber 7, the amount of fuel sprayed into the combustion cylinder 7 is reduced. This reduction amount is determined by the position of the fuel injection valve 11. On the other hand, the combustion air pressure-fed to the combustion air chamber 2o via the combustion air supply pipe 17 passes through the rectifying air hole 24 formed in the main body part 1a of the flange 1. The primary air is supplied to the first air chamber 21, and flows into the combustion cylinder 7 through the center hole 8b of the swirl vane 8 as primary air together with the fuel sprayed from the fuel injection valve 11. Therefore, even when the amount of fuel sprayed into the combustion tube 7 is small, sufficient penetrating force can be given to the fuel by the secondary air. Further, the combustion air in the combustion air chamber 20 is supplied as secondary air to the second air chamber 22 through the rectifying air hole 25, and becomes a swirling flow by passing through the main body portion 8a of the swirling vane 8. It flows into the combustion tube 7 and is facilitated by the swirler cone portion 7a of the combustion tube 7 to form a recirculation area. Since this secondary air is completely separated from the primary air by the primary air cylinder 2, it does not escape into the center hole 8b of the swirling vane 8, which has low resistance, and forms a sufficient swirling flow inside the combustion cylinder 7. can. Further, the combustion air in the combustion air chamber 20 is supplied to the third air chamber 23 through the rectifying air hole 26, and the combustion air is supplied to the third air chamber 23 through the rectifying air hole 26 and the louver slit 29.
and flows into the combustion cylinder 7 as tertiary air.
かくしてイグナイタ１４により燃料噴射弁１１の噴射口
から噴霧された燃料に着火されると、燃焼筒７内に安定
した火炎が形成される。When the igniter 14 ignites the fuel sprayed from the injection port of the fuel injection valve 11, a stable flame is formed within the combustion tube 7.
このように、第１の空気室２１と第２の空気室２２とを
設けて一次空気と二次空気とを完全に分離したので、燃
焼筒７内への燃料の噴ｉ量を絞った場合でも燃料に充分
な貫通力を与えることができると同時に、燃焼筒７内に
充分な旋回流を形成できる。したがって燃焼筒７内に常
に安定した火炎を形成できる。In this way, since the first air chamber 21 and the second air chamber 22 are provided to completely separate the primary air and the secondary air, when the amount of fuel injected into the combustion tube 7 is reduced. However, sufficient penetrating force can be given to the fuel, and at the same time, a sufficient swirling flow can be formed within the combustion tube 7. Therefore, a stable flame can always be formed within the combustion tube 7.
なお、上記実施例では噴霧カッター１３による噴霧カン
ト方式を採用したが、燃料噴射弁として空気噴射ノズル
や超音波ノズルや燃料戻り方式ノズル等を採用すること
により燃焼筒７内への燃料の噴霧量を調節しもよい。ま
た比例制御噴射弁に限らず、単一人力の噴射弁を用いて
もよい。In the above embodiment, a spray cant method using the spray cutter 13 was adopted, but by adopting an air injection nozzle, an ultrasonic nozzle, a fuel return type nozzle, etc. as the fuel injection valve, the amount of fuel sprayed into the combustion cylinder 7 can be reduced. may be adjusted. Moreover, not only the proportional control injection valve but also a single manual injection valve may be used.
〈効果〉
本発明は以上の構成よりなり、旋回羽根の中心孔を介し
て燃焼筒内に連通ずる第１の空気室と、旋回羽根の本体
部分を介して燃焼筒内に連通ずる第２の空気室とを互い
に独立に設け、旋回羽根の中心孔を通る燃焼用空気と旋
回羽根の本体部分を通る燃焼用空気とを分離したので、
燃焼筒内への燃料の噴霧量を絞った場合でも燃料に充分
な貫通力を与えることができると同時に、燃焼筒内に充
分な旋回流を形成できることから、燃焼筒内に常に安定
した火炎を形成できる。<Effects> The present invention has the above configuration, and includes a first air chamber that communicates with the inside of the combustion cylinder through the center hole of the swirl vane, and a second air chamber that communicates with the inside of the combustion cylinder through the main body of the swirl vane. The air chambers are provided independently from each other, and the combustion air passing through the center hole of the swirl vane is separated from the combustion air passing through the main body of the swirl vane.
Even when the amount of fuel sprayed into the combustion tube is reduced, it is possible to give sufficient penetration force to the fuel, and at the same time, it is possible to form a sufficient swirling flow inside the combustion tube, so it is possible to always maintain a stable flame inside the combustion tube. Can be formed.
第１図は本発明の一実施例における噴霧燃焼器の概略断
面図、第２図および第３図は各々従来の噴霧燃焼器の概
略断面図である。
７：燃焼筒 ８：旋回羽根
８ａ：本体部分 ８ｂ＝中心孔
１１：燃料噴射弁 ２１：第１の空気室２２：第２の
空気室FIG. 1 is a schematic sectional view of a spray combustor according to an embodiment of the present invention, and FIGS. 2 and 3 are schematic sectional views of conventional spray combustors. 7: Combustion tube 8: Swirling vane 8a: Main body portion 8b = Center hole 11: Fuel injection valve 21: First air chamber 22: Second air chamber
Claims (1)
根と、この旋回羽根の中心孔を通して燃焼筒内に燃料を
噴霧する噴霧量可変式の燃料噴射弁とを有する噴霧燃焼
器において、前記旋回羽根の中心孔を介して燃焼筒内に
連通する第１の空気室と、前記旋回羽根の本体部分を介
して燃焼筒内に連通する第２の空気室とを互いに独立に
設け、前記旋回羽根の中心孔を通る燃焼用空気と前記旋
回羽根の本体部分を通る燃焼用空気とを分離したことを
特徴とする噴霧燃焼器。(1) In a spray combustor that has a swirl vane as a flame stabilizer having a center hole in the center and a variable spray amount fuel injection valve that sprays fuel into the combustion cylinder through the center hole of the swirl vane. , providing independently from each other a first air chamber that communicates with the inside of the combustion cylinder through the center hole of the swirl vane, and a second air chamber that communicates with the inside of the combustion cylinder through the main body portion of the swirl vane; A spray combustor characterized in that combustion air passing through a center hole of the swirl vane and combustion air passing through a main body portion of the swirl vane are separated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31923990A JPH04190006A (en) | 1990-11-22 | 1990-11-22 | Spray burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31923990A JPH04190006A (en) | 1990-11-22 | 1990-11-22 | Spray burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04190006A true JPH04190006A (en) | 1992-07-08 |
Family
ID=18107969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31923990A Pending JPH04190006A (en) | 1990-11-22 | 1990-11-22 | Spray burner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04190006A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01305212A (en) * | 1988-06-02 | 1989-12-08 | Sanyo Electric Co Ltd | Gun type burner |
-
1990
- 1990-11-22 JP JP31923990A patent/JPH04190006A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01305212A (en) * | 1988-06-02 | 1989-12-08 | Sanyo Electric Co Ltd | Gun type burner |
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