JPH02157504A - Ignition method of burner for liquid fuel - Google Patents
Ignition method of burner for liquid fuelInfo
- Publication number
- JPH02157504A JPH02157504A JP31325888A JP31325888A JPH02157504A JP H02157504 A JPH02157504 A JP H02157504A JP 31325888 A JP31325888 A JP 31325888A JP 31325888 A JP31325888 A JP 31325888A JP H02157504 A JPH02157504 A JP H02157504A
- Authority
- JP
- Japan
- Prior art keywords
- methanol
- combustion
- temperature
- liquid fuel
- fuel
- 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 40
- 239000007788 liquid Substances 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 84
- 238000002485 combustion reaction Methods 0.000 claims abstract description 36
- 239000002737 fuel gas Substances 0.000 claims abstract description 20
- 239000007921 spray Substances 0.000 claims abstract description 10
- 239000007789 gas Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005507 spraying Methods 0.000 abstract description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 11
- 239000000567 combustion gas Substances 0.000 description 4
- 238000006057 reforming reaction Methods 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000002407 reforming Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000036760 body temperature Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002994 raw material 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、液体燃料を燃焼するバーナ、特に燃料改質器
に備えられる液体燃料のメタノールを燃焼するバーナに
おける液体燃料の着火方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for igniting liquid fuel in a burner that burns liquid fuel, particularly in a burner that burns methanol as a liquid fuel provided in a fuel reformer.
液体燃料をバーナにて燃焼空気と混合して燃焼し、この
燃焼によって生じる火炎や燃焼ガスの熱エネルギーを利
用する設備は種々のものがあるが、燃料電池から電力を
取出すシステムである燃料電池発電装置にもこの種のバ
ーナが使用されている。There are various types of equipment that mix liquid fuel with combustion air in a burner and burn it, and use the thermal energy of the flame and combustion gas generated by this combustion.Fuel cell power generation is a system that extracts electricity from fuel cells. This type of burner is also used in the equipment.
燃料電池発電装置は燃料電池と燃料改質器とを組み合わ
せ構成され、燃料改質器で改質原料、例えばメタノール
を改質触媒の下で水素に富むガスに改質し、この改質ガ
スを燃料電池に燃料として供給している。改質原料を前
述のように改質する改質反応において、改質触媒を改質
反応に必要な温度に昇温したり、吸熱反応である改質反
応を行わせるために連続的に熱を改質触媒に与える必要
がある。このため改質反応を行わせる燃料改質器には熱
エネルギー源となる熱媒体としての火炎や燃焼ガスを発
生するバーナを備えている。A fuel cell power generation device is constructed by combining a fuel cell and a fuel reformer. It is supplied as fuel to fuel cells. In the reforming reaction in which the reformed raw material is reformed as described above, heat is continuously applied to raise the temperature of the reforming catalyst to the temperature required for the reforming reaction, or to carry out the endothermic reforming reaction. It is necessary to feed it to the reforming catalyst. For this reason, a fuel reformer that performs a reforming reaction is equipped with a burner that generates flame and combustion gas as a heat medium that serves as a source of thermal energy.
この種のバーナとして従来メタノールのような液体燃料
をノズルによって霧化し、これを燃焼空気と混合して着
火する手段としてイグナイタにて発生する火花で着火し
て燃焼するものが知られている。Conventionally known burners of this type include those in which liquid fuel such as methanol is atomized through a nozzle, mixed with combustion air, and ignited by a spark generated by an igniter.
液体燃料であるメタノールの燃焼は一最に下記の化学式
で表わされる。The combustion of methanol, which is a liquid fuel, is first expressed by the chemical formula below.
ＣＨｓ ＯＨ＋ ３ ／ ２０ ｔ→ＣＯｚ＋２ＨよＯ
しかしながら低温燃焼になると下記の化学式による燃焼
反応が行われる。CHs OH+ 3/20 t→COz+2HyoO
However, when low-temperature combustion occurs, a combustion reaction occurs according to the chemical formula below.
ＣＨ３０Ｈ−４ＨＣＨＯ＋ Ｈｔ
Ｈ！ ＋ １ ／ ２０ｇ −４Ｈｚ ＯＣＨ，ＯＨ＋
１／２０！→ＨＣＦ（Ｏ＋Ｈ，ＯＨＣＨＯ＋ Ｏｘ →
ＣＯｔ ＋ Ｈｚ Ｏ上記の化学反応の過程からホルム
アルデヒド（ＨＣＨＯ）が多く生成され、このホルムア
ルデヒドは刺激臭を有している。CH30H-4HCHO+ Ht H! + 1/20g -4Hz OCH,OH+
1/20! →HCF(O+H,OHCHO+Ox →
COt + Hz O A large amount of formaldehyde (HCHO) is generated from the above chemical reaction process, and this formaldehyde has a pungent odor.
ところで、バーナでの着火時、燃料改質器の炉体は低温
であり、従来の噴霧式バーナでは霧化したメタノールは
小さな液滴であるため、その一部が未燃状態で排出され
、これが低温燃焼するため排出された燃焼ガスに刺激臭
が残り、環境に悪影響を与えるという欠点がある。By the way, when igniting in the burner, the furnace body of the fuel reformer is at a low temperature, and in conventional spray burners, the atomized methanol is small droplets, so some of it is discharged in an unburned state. Because it burns at a low temperature, the emitted combustion gas leaves behind a pungent odor, which has a negative impact on the environment.
本発明の目的は、液体燃料のメタノールを噴霧して燃焼
する際、その燃焼排ガスに刺激臭が残らないように着火
、燃焼する液体燃料用バーナの着火方法を提供すること
である。An object of the present invention is to provide a method for igniting a liquid fuel burner, which ignites and burns liquid fuel methanol, which is sprayed and combusted, so that no pungent odor remains in the combustion exhaust gas.
上記課題を解決するために、本発明によれば液体燃料供
給路と燃焼空気供給路とを備えるバーナにより液体燃料
のメタノールを液体燃料供給路を経て炉体内に噴霧して
着火、燃焼させる着火方法において、バーナに燃料ガス
供給路を設け、この供給路を経た燃料ガスを炉体内で燃
焼させ、炉体温度が所定温度に達した後、メタノールを
着火するものとする。In order to solve the above problems, according to the present invention, an ignition method uses a burner having a liquid fuel supply passage and a combustion air supply passage to spray methanol as a liquid fuel into a furnace body through a liquid fuel supply passage, ignite it, and burn it. The burner is provided with a fuel gas supply path, the fuel gas that has passed through the supply path is combusted in the furnace body, and after the furnace body temperature reaches a predetermined temperature, methanol is ignited.
バーナに設けられた燃料ガス供給路を経て燃料ガスをま
ず燃焼して炉体を所定温度に昇温し、この昇温後液体燃
料のメタノールを噴霧して着火燃焼するので、メタノー
ルの燃焼は高温で行われる。このため排出された燃焼ガ
ス中の未燃分が減少し、ホルムアルデヒド（ＨＣＨＯ）
の生成量が減少し、刺激臭がなくなる。The fuel gas is first combusted through the fuel gas supply path provided in the burner to raise the temperature of the furnace body to a predetermined temperature, and after this temperature rise, liquid fuel methanol is sprayed and ignited for combustion, so the combustion of methanol is at a high temperature. It will be held in As a result, the amount of unburned matter in the emitted combustion gas is reduced, and formaldehyde (HCHO) is produced.
The amount of oxidation produced is reduced, and the pungent odor disappears.
以下図面に基づいて本発明の実施例について説明する。 Embodiments of the present invention will be described below based on the drawings.
第１図は本発明に係る液体燃料の着火方法を適用するバ
ーナを備えた炉体の部分新面図である。第１図において
炉体ｌの上部にバーナ２が設けられ、バーナ２は炉体内
の炉室３に開口する噴霧ノズル４を備えた液体燃料供給
管５と、炉室３に開口する燃焼空気ノズル６を備えた燃
焼空気室７と本発明に係る炉室３に開口する燃料ガスノ
Ａｋ゛
ズル８を備えた環境の燃料ガス室９に接続する燃料ガス
供給管１０とから構成されている。なお１１は着火用の
イグナイタ、１２は炉体ｌの炉室３を形成する内壁温度
を検出する炉体上部に設けられた温度センサ、１３は燃
焼空気の燃焼空気室７に流入する燃焼空気入口管である
。FIG. 1 is a partial new view of a furnace body equipped with a burner to which the liquid fuel ignition method according to the present invention is applied. In FIG. 1, a burner 2 is provided in the upper part of a furnace body l, and the burner 2 has a liquid fuel supply pipe 5 equipped with a spray nozzle 4 that opens into a furnace chamber 3 inside the furnace body, and a combustion air nozzle that opens into the furnace chamber 3. 6 and a fuel gas supply pipe 10 connected to an environmental fuel gas chamber 9 equipped with a fuel gas nozzle 8 opening into the furnace chamber 3 according to the present invention. In addition, 11 is an igniter for ignition, 12 is a temperature sensor provided on the upper part of the furnace body for detecting the temperature of the inner wall forming the furnace chamber 3 of the furnace body l, and 13 is a combustion air inlet through which combustion air flows into the combustion air chamber 7. It's a tube.
このような構成により燃焼空気入口管１３から燃焼空気
を燃焼空気室７に供給して燃焼空気ノズル６から炉室３
に燃焼空気を噴出する。そして気化したメタノールガス
を燃料ガス供給管ｊに供給し、燃料ガス室９の燃料ガス
ノズル８からメタノールガスを噴出させ、イグナイタ１
１により着火して燃焼する。そして炉体１の内壁温度を
温度センサ１２により検出して所定温度以上になったこ
とを確認した後液体燃料のメタノールを液体燃料供給管
５に供給して噴霧ノズル４からメタノールを噴霧させて
着火、燃料する。着火、燃料が行われたらメタノールガ
スによる燃焼を停止し、噴霧ノズル４からの液体燃料の
メタノールの噴霧による燃焼のみにする。このようにし
て液体燃料のメタノールは常に高温状態で燃焼する。With this configuration, combustion air is supplied from the combustion air inlet pipe 13 to the combustion air chamber 7, and from the combustion air nozzle 6 to the furnace chamber 3.
blows out combustion air. Then, the vaporized methanol gas is supplied to the fuel gas supply pipe j, the methanol gas is ejected from the fuel gas nozzle 8 of the fuel gas chamber 9, and the igniter 1
1 ignites and burns. Then, after detecting the inner wall temperature of the furnace body 1 with the temperature sensor 12 and confirming that it has reached a predetermined temperature or higher, methanol as liquid fuel is supplied to the liquid fuel supply pipe 5, and methanol is sprayed from the spray nozzle 4 and ignited. , to fuel. Once ignition and fuel have been carried out, combustion with methanol gas is stopped and only combustion is performed by spraying methanol from the liquid fuel from the spray nozzle 4. In this way, the liquid fuel methanol always burns at a high temperature.
以上の説明から明らかなように、本発明によればバーナ
に燃料ガス供給路を設け、この供給路をす・（
経た燃料ガスを着火、燃料して炉体を所定温度以上にし
た後、液体燃料のメタノールの噴霧燃焼を行わせること
により、メタノールの燃焼は常に高温状態で行われるの
で、刺激臭のない良好な燃焼が行われ、環境に悪影響を
与えないという効果がある。As is clear from the above description, according to the present invention, a fuel gas supply path is provided in the burner, and after the fuel gas is ignited and fueled to raise the temperature of the furnace body to a predetermined temperature or higher, liquid By carrying out the spray combustion of the methanol fuel, the combustion of methanol is always carried out in a high temperature state, so that good combustion is carried out without any irritating odor, and there is an effect that there is no adverse effect on the environment.
第１図は本発明に係る着火方法を適用する時のバーナを
備えた炉体の部分断面図である。
１ ：
炉体、
２ ：
バーナ、
５ ：
液体燃料供給管、
７ ：
燃焼空気室、
１０：燃料ガス供給管。
第」
図FIG. 1 is a partial sectional view of a furnace body equipped with a burner when the ignition method according to the present invention is applied. 1: Furnace body, 2: Burner, 5: Liquid fuel supply pipe, 7: Combustion air chamber, 10: Fuel gas supply pipe. Fig.
Claims (1)
により液体燃料のメタノールを液体燃料供給路を経て炉
体内に噴霧して着火、燃焼させる着火方法において、バ
ーナに燃料ガス供給路を設け、この供給路を経た燃料ガ
スを炉体内で燃焼させ、炉体温度が所定温度に達した後
、メタノールを着火することを特徴とする液体燃料用バ
ーナの着火方法。1) In an ignition method in which a burner equipped with a liquid fuel supply passage and a combustion air supply passage sprays liquid fuel methanol into a furnace body through a liquid fuel supply passage to ignite and burn the burner, the burner is provided with a fuel gas supply passage; A method for igniting a burner for liquid fuel, characterized in that the fuel gas that has passed through the supply path is combusted in a furnace body, and methanol is ignited after the temperature of the furnace body reaches a predetermined temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31325888A JPH02157504A (en) | 1988-12-12 | 1988-12-12 | Ignition method of burner for liquid fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31325888A JPH02157504A (en) | 1988-12-12 | 1988-12-12 | Ignition method of burner for liquid fuel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02157504A true JPH02157504A (en) | 1990-06-18 |
Family
ID=18039038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31325888A Pending JPH02157504A (en) | 1988-12-12 | 1988-12-12 | Ignition method of burner for liquid fuel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02157504A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110236840A1 (en) * | 2010-03-25 | 2011-09-29 | Whirlpool Corporation | Attachment system for an igniter electrode for a gas burner |
-
1988
- 1988-12-12 JP JP31325888A patent/JPH02157504A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110236840A1 (en) * | 2010-03-25 | 2011-09-29 | Whirlpool Corporation | Attachment system for an igniter electrode for a gas burner |
| US9341380B2 (en) * | 2010-03-25 | 2016-05-17 | Whirlpool Corporation | Attachment system for an igniter electrode for a gas burner |
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