JPH0921509A - Hydrogen combustion burner - Google Patents
Hydrogen combustion burnerInfo
- Publication number
- JPH0921509A JPH0921509A JP16865295A JP16865295A JPH0921509A JP H0921509 A JPH0921509 A JP H0921509A JP 16865295 A JP16865295 A JP 16865295A JP 16865295 A JP16865295 A JP 16865295A JP H0921509 A JPH0921509 A JP H0921509A
- Authority
- JP
- Japan
- Prior art keywords
- combustion
- hydrogen gas
- passage
- hydrogen
- air
- 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.)
- Withdrawn
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 73
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 239000001257 hydrogen Substances 0.000 title claims abstract description 20
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 20
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 31
- 239000011780 sodium chloride Substances 0.000 claims abstract description 16
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims 1
- 238000005507 spraying Methods 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000009834 vaporization Methods 0.000 abstract description 3
- 230000008016 vaporization Effects 0.000 abstract description 3
- 239000002360 explosive Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 238000004200 deflagration Methods 0.000 description 6
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 239000000446 fuel Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 230000003534 oscillatory effect Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 239000002803 fossil fuel Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 229910052815 sulfur oxide Inorganic materials 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Landscapes
- Gas Burners (AREA)
- Pre-Mixing And Non-Premixing Gas Burner (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は水管式ボイラ，円筒
形ボイラ等の燃焼に適用される水素燃焼用バーナに関す
るもので、吸収式冷凍機の高圧再生器（冷媒蒸発器）に
も適用できる。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydrogen combustion burner applied to the combustion of a water tube type boiler, a cylindrical type boiler and the like, and can also be applied to a high pressure regenerator (refrigerant evaporator) of an absorption refrigerator.
【０００２】[0002]
【従来の技術】水素を燃料としたボイラまたは燃焼炉
で、現時点で商品化されているものは見当らない。2. Description of the Related Art No hydrogen-fueled boiler or combustion furnace is commercially available at this time.
【０００３】[0003]
【発明が解決しようとする課題】近時、化石燃料の代替
クリーンエネルギーの一つとして水素燃料が注目されて
おり、各方面で実用化のための研究開発が進められてい
る。Recently, hydrogen fuel has been attracting attention as one of the alternative clean energies of fossil fuel, and research and development for practical use have been promoted in various fields.
【０００４】本発明者らは、水素燃焼に係る取扱い技術
に関して研究を重ね多くの知見を集積してきた。周知の
ように、化石燃料の燃焼においては、排気ガス中の窒素
酸化物・硫黄酸化物等による大気汚染の問題や二酸化炭
素ガスによる地球温暖化の問題などなど、その対策が社
会的課題としてとりあげられている。このような化石燃
料に対し、水素燃料はクリーンエネルギーであって、そ
の燃焼排ガス中には二酸化炭素や硫黄化合物は含まれ
ず、また窒素酸化物も半減される。The present inventors have accumulated a great deal of knowledge by conducting research on the handling technology related to hydrogen combustion. As is well known, in the combustion of fossil fuels, measures such as air pollution due to nitrogen oxides and sulfur oxides in exhaust gas and global warming due to carbon dioxide gas are taken up as social issues. Has been. In contrast to such fossil fuels, hydrogen fuel is clean energy, and its combustion exhaust gas does not contain carbon dioxide and sulfur compounds, and nitrogen oxides are also halved.
【０００５】しかし、水素燃料は爆発の危険が高いから
爆燃現象の抑制技術を確立すること、更に水素燃焼火炎
は不輝炎である（可視できない）から火炎輻射による熱
授受が低下し、そのため熱効率が半減する欠点がある。However, since hydrogen fuel has a high risk of explosion, it is necessary to establish a technology for suppressing the deflagration phenomenon. Further, since hydrogen combustion flame is a non-luminous flame (not visible), heat transfer due to flame radiation is reduced, which results in thermal efficiency. Has the drawback of being halved.
【０００６】[0006]
【課題を解決するための手段】本発明者らは、前記従来
の課題を解決するために、内部に水素ガス通路を形成す
る内筒と、上記内筒と同軸で上記内筒との間に燃焼用空
気通路を形成する外筒と、上記水素ガス通路および上記
燃焼用空気通路の先端吹出し部にそれぞれ設けられた旋
回羽根と、上記内筒の軸線に沿って設けられ先端部から
塩化ナトリウム水溶液を噴霧するＮａＣｌノズルとを備
えたことを特徴とする水素燃焼用バーナを提案するもの
である。SUMMARY OF THE INVENTION In order to solve the above-mentioned conventional problems, the inventors of the present invention have provided a space between an inner cylinder forming a hydrogen gas passage therein and the inner cylinder coaxial with the inner cylinder. An outer cylinder forming a combustion air passage, swirl vanes respectively provided at the tip end blow-out portions of the hydrogen gas passage and the combustion air passage, and an aqueous sodium chloride solution provided along the axis of the inner cylinder from the tip end. A burner for hydrogen combustion, characterized by comprising a NaCl nozzle for spraying.
【０００７】本発明においては前記解決手段を講ずるの
で、水素ガスが燃焼用空気により燃焼して形成される燃
焼火炎の中心部へ、ＮａＣｌノズルから極く低濃度の塩
化ナトリウム水溶液を噴霧すると、燃焼室内水素ガスと
燃焼用空気の混合が促進され、更に液滴の蒸発潜熱によ
り水素の燃焼反応が抑制されて、爆燃現象や振動燃焼が
抑止される。In the present invention, since the above-mentioned solution means is taken, when an extremely low-concentration sodium chloride aqueous solution is sprayed from the NaCl nozzle to the center of the combustion flame formed by the combustion of the hydrogen gas by the combustion air, combustion occurs. The mixing of the indoor hydrogen gas with the combustion air is promoted, and the latent heat of vaporization of the droplets suppresses the combustion reaction of hydrogen, thereby suppressing the deflagration phenomenon and oscillatory combustion.
【０００８】一方、燃焼火炎中に微量の塩化ナトリウム
が添加され、これが燃焼することによって白黄橙色の輝
炎が形成される。そうすると、炉壁管等の伝熱管に対す
る輻射熱伝達率が増大し、熱効率が向上する。On the other hand, a small amount of sodium chloride is added to the combustion flame, and when it burns, a white-yellow-orange bright flame is formed. Then, the radiant heat transfer coefficient to the heat transfer tube such as the furnace wall tube is increased, and the thermal efficiency is improved.
【０００９】また、燃焼室内に可視輝炎が形成されるこ
とによって、燃焼状況を容易に監視することができる。
したがって、これを監視しつつ燃焼を調整することによ
り、前記振動燃焼・爆燃現象の防止を更に確実にするこ
とができる。Further, since the visible bright flame is formed in the combustion chamber, the combustion condition can be easily monitored.
Therefore, by controlling the combustion while monitoring this, it is possible to further surely prevent the vibration combustion / deflagration phenomenon.
【００１０】[0010]
【発明の実施の形態】図１は本発明の実施の一形態に係
る水素燃焼用バーナを示す縦断側面図、図２は上記水素
燃焼用バーナが取付けられた竪型水管式ボイラの一例を
示す概念図である。1 is a vertical sectional side view showing a hydrogen combustion burner according to an embodiment of the present invention, and FIG. 2 shows an example of a vertical water tube type boiler to which the hydrogen combustion burner is attached. It is a conceptual diagram.
【００１１】まず図１において、（１）は内部に水素ガ
ス通路（３）を形成する内筒、（２）は上記内筒（１）
と同軸で上記内筒（１）との間に燃焼用空気通路（４）
を形成する外筒、（５），（６）は上記水素ガス通路
（３）および上記燃焼用空気通路（４）の先端吹出し部
にそれぞれ設けられた旋回羽根である。（７）は上記内
筒の軸線に沿って設けられたＮａＣｌノズルであって、
内部に塩化ナトリウム水溶液（食塩水）の通路（７
ａ），噴霧用空気通路（７ｂ）および気・液の混合室
（７ｃ）が設けられ、その混合室（７ｃ）に連通する複
数のノズル噴口（７ｄ）が燃焼室内（３１）に開口して
いる。（９），（１０），（１１），（１２）は水素ガ
ス供給管，燃焼用空気供給管，食塩水供給管，噴霧用空
気供給管をそれぞれ示す。First, in FIG. 1, (1) is an inner cylinder forming a hydrogen gas passage (3) therein, and (2) is the inner cylinder (1).
And a combustion air passage (4) coaxially with the inner cylinder (1)
The outer cylinders (5) and (6) forming the above are swirl vanes respectively provided at the tip end blow-out portions of the hydrogen gas passage (3) and the combustion air passage (4). (7) is a NaCl nozzle provided along the axis of the inner cylinder,
Inside the passage (7)
a), a spraying air passage (7b) and a gas / liquid mixing chamber (7c) are provided, and a plurality of nozzle nozzles (7d) communicating with the mixing chamber (7c) are opened in the combustion chamber (31). There is. (9), (10), (11), and (12) show a hydrogen gas supply pipe, a combustion air supply pipe, a saline supply pipe, and a spraying air supply pipe, respectively.
【００１２】水素ガス供給管（９）および燃焼用空気供
給管（１０）から、それぞれ水素ガス通路（３），燃焼
用空気通路（４）に導入された燃焼用空気（酸化材）と
水素ガス（燃料）は、各通路（３），（４）の先端吹出
し部に設けられた旋回羽根（５），（６）によって形成
される旋回気流の作用で混合され、点火源により着火燃
焼する。ここで燃焼室内（３１）に形成される燃焼火炎
の中心部へ、ノズル噴口（７ｄ）から極く低濃度の塩化
ナトリウム水溶液を噴霧用空気によって数１０μｍの液
滴径で気流噴霧すると、燃焼室内（３１）における水素
ガスと空気の混合が促進され、更に液滴の蒸発潜熱によ
って水素の燃焼反応が抑制されて、燃焼室内の爆燃現象
や振動燃焼が防止される。一方、燃焼火炎中に微量の塩
化ナトリウムが添加され、これが燃焼することによっ
て、白黄橙色の輝炎が形成される。Combustion air (oxidizer) and hydrogen gas introduced into the hydrogen gas passage (3) and the combustion air passage (4) from the hydrogen gas supply pipe (9) and the combustion air supply pipe (10), respectively. The (fuel) is mixed by the action of the swirling airflow formed by the swirling vanes (5) and (6) provided at the tip end blowing portions of the passages (3) and (4), and is ignited and burned by the ignition source. Here, when an extremely low-concentration aqueous solution of sodium chloride is sprayed from the nozzle nozzle (7d) into the center of the combustion flame formed in the combustion chamber (31) with atomizing air in a droplet diameter of several tens of μm, the combustion chamber The mixing of hydrogen gas and air in (31) is promoted, and the combustion reaction of hydrogen is suppressed by the latent heat of vaporization of the droplets, so that the deflagration phenomenon and oscillatory combustion in the combustion chamber are prevented. On the other hand, a slight amount of sodium chloride is added to the combustion flame, and when this is burned, a white-yellow-orange bright flame is formed.
【００１３】次に図２に示される竪形水管式ボイラは、
ボイラ本体（２１），気水分離器（２２），循環水ポン
プ（２３），主蒸気導管（２４），排気ダクト（２５）
から成る。そしてボイラ本体（２１）の内部に炉筒水管
（３２），蒸発器管群（３３）およびエコノマイザー
（３４）が配設されている。また、図１に示された水素
燃焼用バーナ（３５）がボイラ本体（２１）の下部に装
着される。Next, the vertical water tube type boiler shown in FIG.
Boiler body (21), steam separator (22), circulating water pump (23), main steam conduit (24), exhaust duct (25)
Consists of Inside the boiler main body (21), a water tube (32) for a reactor tube, an evaporator tube group (33) and an economizer (34) are arranged. Further, the burner (35) for hydrogen combustion shown in FIG. 1 is attached to the lower portion of the boiler body (21).
【００１４】図２に示すとおり、ボイラ本体（２１）の
燃焼室（３１）内には、燃焼火炎（３６）が形成される
が、本実施形態ではこの火炎中に塩化ナトリウム水溶液
を噴霧添加することによって、白黄橙色の輝炎が形成さ
れる。そうすると、蒸発器管群（３３），炉筒水管（３
２）への輻射熱伝達率（特に炉筒水管の輻射熱吸収率）
が倍増し、ボイラの性能（熱効率）が大幅に向上する。
また、燃焼室内に可視輝炎が形成されるので、燃焼室内
の燃焼状況を的確に監視することができる。As shown in FIG. 2, a combustion flame (36) is formed in the combustion chamber (31) of the boiler body (21). In this embodiment, the sodium chloride aqueous solution is spray-added into this flame. As a result, a white-yellow-orange glow flame is formed. Then, the evaporator tube group (33), the reactor water tube (3
2) Radiant heat transfer coefficient (especially radiant heat absorption coefficient of water tube of reactor)
Is doubled and the performance (thermal efficiency) of the boiler is greatly improved.
Further, since the visible bright flame is formed in the combustion chamber, it is possible to accurately monitor the combustion condition in the combustion chamber.
【００１５】本発明者らの実験研究では、水素燃焼火炎
中に数十ppm から百数十ppm のナトリウムイオンを添加
することによって、白黄橙色の輝炎が得られることが確
認された。また、輝炎を形成させることによって、輻射
率が不輝炎に比べて約１．８倍となり、ボイラの熱効率
が約１．５倍まで高まることが判った。In the experimental studies conducted by the present inventors, it was confirmed that a white-yellow-orange bright flame can be obtained by adding several tens to several hundreds of ppm of sodium ions to a hydrogen combustion flame. It was also found that by forming a bright flame, the emissivity was about 1.8 times that of the non-flaming flame, and the thermal efficiency of the boiler was increased to about 1.5 times.
【００１６】ボイラの熱効率が向上すれば、ボイラ本体
を小形軽量化することができる。更に可視炎が形成され
ると、燃焼状況を容易に的確に監視できるから、燃焼調
整により、振動燃焼・爆燃現象を未然に阻止することが
できる。これ等の燃焼技術は在来の火力プラントにも容
易に適用することができる。If the thermal efficiency of the boiler is improved, the boiler body can be made compact and lightweight. Further, when a visible flame is formed, the combustion state can be easily and accurately monitored, and therefore, the combustion adjustment can prevent the oscillatory combustion and deflagration phenomena. These combustion techniques can be easily applied to conventional thermal power plants.
【００１７】[0017]
【発明の効果】本発明によれば、水素を燃料とするバー
ナにおいて、爆燃現象や振動燃焼を確実に防止するとと
もに、プラントの熱効率を向上させることができる。According to the present invention, in a burner using hydrogen as a fuel, it is possible to reliably prevent deflagration phenomena and oscillatory combustion and improve the thermal efficiency of the plant.
【図１】図１は本発明の実施の一形態に係る水素燃焼用
バーナを示す縦断側面図である。FIG. 1 is a vertical sectional side view showing a hydrogen combustion burner according to an embodiment of the present invention.
【図２】図２は上記水素燃焼用バーナが取付けられた竪
型水管式ボイラの一例を示す概念図である。FIG. 2 is a conceptual diagram showing an example of a vertical water tube type boiler to which the burner for hydrogen combustion is attached.
（１） 内筒 （２） 外筒 （３） 水素ガス通路 （４） 燃焼用空気通路 （５），（６） 旋回羽根 （７） ＮａＣｌノズル （７ａ） 食塩水通路 （７ｂ） 噴霧用空気通路 （７ｃ） 混合室 （７ｄ） ノズル噴口 （９） 水素ガス供給管 （１０） 燃焼用空気供給管 （１１） 食塩水供給管 （１２） 噴霧用空気供給管 （２１） ボイラ本体 （２２） 気水分離器 （２３） 循環水ポンプ （２４） 主蒸気導管 （２５） 排気ダクト （３１） 燃焼室 （３２） 炉筒水管 （３３） 蒸発器管群 （３４） エコノマイザ （３５） 水素燃焼用バーナ （３６） 燃焼火炎 (1) Inner cylinder (2) Outer cylinder (3) Hydrogen gas passage (4) Combustion air passage (5), (6) Swirl vane (7) NaCl nozzle (7a) Salt water passage (7b) Spraying air passage (7c) Mixing chamber (7d) Nozzle nozzle (9) Hydrogen gas supply pipe (10) Combustion air supply pipe (11) Salt water supply pipe (12) Spraying air supply pipe (21) Boiler body (22) Steam Separator (23) Circulating water pump (24) Main steam conduit (25) Exhaust duct (31) Combustion chamber (32) Reactor tube water pipe (33) Evaporator tube group (34) Economizer (35) Hydrogen combustion burner (36) ) Combustion flame
Claims (1)
上記内筒と同軸で上記内筒との間に燃焼用空気通路を形
成する外筒と、上記水素ガス通路および上記燃焼用空気
通路の先端吹出し部にそれぞれ設けられた旋回羽根と、
上記内筒の軸線に沿って設けられ先端部から塩化ナトリ
ウム水溶液を噴霧するＮａＣｌノズルとを備えたことを
特徴とする水素燃焼用バーナ。1. An inner cylinder forming a hydrogen gas passage therein,
An outer cylinder coaxial with the inner cylinder to form a combustion air passage between the inner cylinder and the inner cylinder, and swirl vanes respectively provided at the tip end blowout portions of the hydrogen gas passage and the combustion air passage,
A burner for hydrogen combustion, comprising: a NaCl nozzle that is provided along the axis of the inner cylinder and sprays a sodium chloride aqueous solution from a tip portion thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16865295A JPH0921509A (en) | 1995-07-04 | 1995-07-04 | Hydrogen combustion burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16865295A JPH0921509A (en) | 1995-07-04 | 1995-07-04 | Hydrogen combustion burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0921509A true JPH0921509A (en) | 1997-01-21 |
Family
ID=15872001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16865295A Withdrawn JPH0921509A (en) | 1995-07-04 | 1995-07-04 | Hydrogen combustion burner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0921509A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032671A (en) * | 2010-12-20 | 2011-04-27 | 浙江特富锅炉有限公司 | Boiler system for combusting hydrogen gas organic heat carrier |
| CN102297426A (en) * | 2011-07-26 | 2011-12-28 | 无锡龙泉燃烧器制造有限公司 | Hydrogen gas combustor |
| CN103429761A (en) * | 2011-03-23 | 2013-12-04 | 新日铁住金工程技术株式会社 | Top-combustion hot-blast furnace |
| US20140004475A1 (en) * | 2011-03-15 | 2014-01-02 | Ns Plant Designing Corporation | Top-firing hot blast stove |
| WO2020012779A1 (en) * | 2018-07-11 | 2020-01-16 | 岩谷産業株式会社 | Hydrogen combustion apparatus |
| WO2022076524A1 (en) | 2020-10-06 | 2022-04-14 | Bloom Engineering Company, Inc. | Burner and method for hydrogen combustion with enhanced luminosity |
-
1995
- 1995-07-04 JP JP16865295A patent/JPH0921509A/en not_active Withdrawn
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032671A (en) * | 2010-12-20 | 2011-04-27 | 浙江特富锅炉有限公司 | Boiler system for combusting hydrogen gas organic heat carrier |
| CN102032671B (en) | 2010-12-20 | 2012-07-18 | 浙江特富锅炉有限公司 | Boiler system for combusting hydrogen gas organic heat carrier |
| US20140004475A1 (en) * | 2011-03-15 | 2014-01-02 | Ns Plant Designing Corporation | Top-firing hot blast stove |
| US9518306B2 (en) | 2011-03-15 | 2016-12-13 | Nippon Steel & Sumikin Engineering Co., Ltd | Top-firing hot blast stove |
| CN103429761A (en) * | 2011-03-23 | 2013-12-04 | 新日铁住金工程技术株式会社 | Top-combustion hot-blast furnace |
| US9017068B2 (en) | 2011-03-23 | 2015-04-28 | Nippon Steel & Sumikin Engineering Co., Ltd. | Top-firing hot blast stove |
| CN102297426A (en) * | 2011-07-26 | 2011-12-28 | 无锡龙泉燃烧器制造有限公司 | Hydrogen gas combustor |
| WO2020012779A1 (en) * | 2018-07-11 | 2020-01-16 | 岩谷産業株式会社 | Hydrogen combustion apparatus |
| WO2022076524A1 (en) | 2020-10-06 | 2022-04-14 | Bloom Engineering Company, Inc. | Burner and method for hydrogen combustion with enhanced luminosity |
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