JPS59196964A - Combustion under supplying different kinds of fuels in two steps - Google Patents
Combustion under supplying different kinds of fuels in two stepsInfo
- Publication number
- JPS59196964A JPS59196964A JP58070678A JP7067883A JPS59196964A JP S59196964 A JPS59196964 A JP S59196964A JP 58070678 A JP58070678 A JP 58070678A JP 7067883 A JP7067883 A JP 7067883A JP S59196964 A JPS59196964 A JP S59196964A
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- nozzle
- main
- auxiliary
- ratio
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
- F02D19/081—Adjusting the fuel composition or mixing ratio; Transitioning from one fuel to the other
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は、異種形わ１を用いた燃料２段供給法による
燃焼法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a combustion method using a two-stage fuel supply method using a different type of fuel 1.
この明ｍ書において「２次燃料比」なる用語は仝燃料量
に対する２次燃料の割合を意味し、また「副燃料比」な
る用語は全燃料の燃焼熱用に対する副燃料の燃焼熱量の
割合を意味づることとする。In this specification, the term "secondary fuel ratio" means the ratio of secondary fuel to the amount of primary fuel, and the term "auxiliary fuel ratio" refers to the ratio of the combustion heat of secondary fuel to the combustion heat of total fuel. Let's define the meaning.
燃料２段供給による燃焼法は、窒素前化物（以下、ＮＯ
ｘと称づ）の発生を抑制することを企図して開発された
ものであって、その燃焼装置は、横形円筒炉の場合、第
１図に示ザ４ｔ４）青を有づ−る。ずなわら同図におい
て、炉の６Ｆｘ 蟹（１１）の中心部に設けられた予燃
焼ボー）−（１２）に１次ノス′ル（１３）が配され、
これの周囲に同心状に複数の２次ノズル（１４）が配さ
れている。The combustion method using two stages of fuel supply uses nitrogen precursors (hereinafter referred to as NO
It was developed with the intention of suppressing the generation of 4t4) blue as shown in Fig. 1 in the case of a horizontal cylindrical furnace. In the same figure, the primary nozzle (13) is placed at the pre-combustion bow (12) provided in the center of the 6Fx crab (11) of the furnace.
A plurality of secondary nozzles (14) are arranged concentrically around this.
前ｑｚ（１１＞の外面には風箱（１５）が設（プられて
予燃焼ボー１〜（１２）に連通されている。A wind box (15) is installed on the outer surface of the front qz (11) and communicates with the pre-combustion boxes 1 to (12).
このように構成された燃焼炉においで燃焼を行なう場合
、一般に２次燃料比が大きくなるにつれて、ＮＯＸの発
生量は低下する傾向にある。When combustion is performed in a combustion furnace configured in this manner, the amount of NOx generated generally tends to decrease as the secondary fuel ratio increases.
ところで燃料２段供給による燃焼法にＪ３いて、燃料と
してｔ−Ｎ Ｇや粉状燃料などの主燃料と灯油などの副
燃料とを任意の割合で用いて、これらを混焼づることが
ある。そこで、２杯類の燃わｌの副燃２゛３１比の変化
に関係なく、ＮＯＸの発生が抑制される条件に２次燃才
１比を常に保つことのできる燃１３１２段供給燃焼法か
要望せられている。By the way, in the J3 combustion method using two-stage fuel supply, a main fuel such as t-NG or powdered fuel and an auxiliary fuel such as kerosene are used in an arbitrary ratio and these are sometimes co-combusted. Therefore, regardless of changes in the secondary fuel 2/31 ratio of two types of fuel, we developed a 2-stage fuel 1312 supply combustion method that can always maintain the secondary fuel 1 ratio under conditions that suppress the generation of NOx. It is requested.
この発明は上記要望にこたえるべくなされたものであっ
て、燃料を１次供給部と２次供給部に分１ノで炉内に供
給して燃焼させるに当り、主副２種類の燃料を用い、各
燃料の２次供給偵を適宜変えることにより、副燃料比に
関係なく２次燃料比を窒Ｍ酸化物発生抑制条件に保つよ
うにづ−ることを特徴どづるものて゛ある。This invention was made in response to the above-mentioned needs, and in supplying fuel to the primary supply section and the secondary supply section at a rate of 1 minute into the furnace for combustion, two types of main and sub-fuel are used. , by appropriately changing the secondary supply of each fuel, the secondary fuel ratio is maintained at a condition for suppressing the generation of nitrogen oxides, regardless of the auxiliary fuel ratio.
この発明による燃焼法は、第１図に示すような横型円筒
炉のほか、箱形の大型垂直炉にも適用される。The combustion method according to the present invention can be applied not only to a horizontal cylindrical furnace as shown in FIG. 1, but also to a large box-shaped vertical furnace.
以下、この発明を実施例により具体的に説明する。Hereinafter, the present invention will be specifically explained with reference to Examples.
第２図に示ザ横型円筒炉において、前壁（２１）の中心
部に１次ノズル（２２）が１本設（づられ、これの周囲
に同心状に１燃わ１の２次ノズル（２３）ｄ５よひ副燃
料の２次ノズル〈２４）がそれぞれ７本づ゛つ設りられ
ている。そして１次ノズル（２２）に（Ｊ主燃料供給管
＜２５）の分岐部（２Ｇ）が接続され、主燃料の２次ノ
ズル（２３）および副燃料の２次ノズル（２４）には、
それぞれ主燃料供給管（２５）の分岐部（２７）および
副燃料供給管（２８）の分岐部（２９）が接続されてい
る。In the horizontal cylindrical furnace shown in Fig. 2, one primary nozzle (22) is installed in the center of the front wall (21), and one secondary nozzle (22) is arranged concentrically around it. 23) Seven secondary nozzles (24) for auxiliary fuel are provided in each of d5 and d5. The branch part (2G) of (J main fuel supply pipe < 25) is connected to the primary nozzle (22), and the secondary nozzle (23) for the main fuel and the secondary nozzle (24) for the auxiliary fuel are connected to the primary nozzle (22).
A branch part (27) of the main fuel supply pipe (25) and a branch part (29) of the auxiliary fuel supply pipe (28) are connected to each other.
主燃料供給管（２５）および副燃料供給管（２８）には
それぞれ調節弁（３０） （３１）が設けられ、Ｊ：
た分岐部（２７）および分岐部（２９）にはそれぞれ開
閉弁（３２） （３３）が設けられている。これら開
閉弁（３２） （３３）は手動弁でも自動弁でもよい
。また２次ノズルの本数はＮＯｘの発生抑制の要求値、
副燃料比などににつで決定される。The main fuel supply pipe (25) and the auxiliary fuel supply pipe (28) are provided with control valves (30) and (31), respectively, and J:
The branch portion (27) and the branch portion (29) are provided with on-off valves (32) and (33), respectively. These on-off valves (32) (33) may be manual valves or automatic valves. In addition, the number of secondary nozzles is the required value for suppressing NOx generation,
It is determined by the auxiliary fuel ratio, etc.
」−記４１１Ｘ成の燃焼炉において、各２次ノズル（２
３＞ （２４）の１本当りの燃料供給能力を最大燃焼
熱量の１０％とし、バーナ火炎の安定化のために１次ノ
ズル＜２２）の燃オ゛４供給能力を最大筒ｉ填熱吊の３
０％とする。したかつて、各２次ノズルから供給される
主燃料の燃焼熱量は全燃焼熱量の７０へ・０％であり、
同副燃料の燃焼熱ｍ ＋、−ｔ ｏ〜７０％であり、ま
た１次燃料による燃りＮｌ熱ｆ１１は全燃焼熱■の３０
％である。” - In a combustion furnace of 411X configuration, each secondary nozzle (2
3> The fuel supply capacity per cylinder (24) is set to 10% of the maximum combustion heat amount, and the fuel supply capacity of the primary nozzle <22) is set to the maximum cylinder i heat loading capacity in order to stabilize the burner flame. No. 3
Set to 0%. In the past, the combustion heat of the main fuel supplied from each secondary nozzle was 70% of the total combustion heat,
The combustion heat m +, -t o of the secondary fuel is ~70%, and the combustion Nl heat f11 due to the primary fuel is 30% of the total combustion heat ■
%.
」：ず主燃料としてしＮＧを用いかつ副燃料として灯油
を用い、０］燃洒比を所定値に設定して、この値を演算
計（３４）に入力する、。弁制御装置（３５）にはボイ
ラから必要な燃焼熱量の信号が送られて来ている。そし
て弁制御装置（３５）から出た弁制御信号は、弁制御量
と演算計（３４）からの副Ｉ＄、Ｍ３１比との演算を受
（Ｊた後、調節弁（３０） （３１）にそれぞれ送ら
れてこれらを制御リ−る。'': Use NG as the main fuel and kerosene as the auxiliary fuel, set the 0] fuel efficiency ratio to a predetermined value, and input this value to the arithmetic meter (34). A signal indicating the required amount of combustion heat is sent from the boiler to the valve control device (35). Then, the valve control signal output from the valve control device (35) receives the calculation of the valve control amount, the sub-I$ from the arithmetic meter (34), and the M31 ratio (J), and then returns to the control valve (30) (31). and control them.
リベての間開弁（３２） （３３）を問いて主燃料１
１′３Ｊ’：び副燃料の２次ノズル（２３） （２４
）のずべてを流通状態にすると、副燃料比の変化に伴な
−）で、２次燃料比が変化してＮＯＸの発生を所要値以
下に抑えることができなくなることかある。そこで先に
設定した副燃料比に対応して、７個の開閉弁（３２）の
うちのいくつかを適宜閉じて、主燃料用の２次ノズル（
２３）の流通本数を制御し、１次ノズル（２２）による
燃焼熱はが１、■は３０％になるよう（こＪ−る。その
結果副灯ｉ’１比の変化に関係なく、２次燃料比を常に
大きな）的に保つことかでき、ＮＯｘの発生を所要値１
ストに効果的に抑制りることがで゛さる。Main fuel 1 by opening the valve (32) and (33) during refueling.
1'3J': Secondary fuel nozzle (23) (24
If all of ) are in a flowing state, the secondary fuel ratio will change at -) as the auxiliary fuel ratio changes, and it may become impossible to suppress the generation of NOx below the required value. Therefore, some of the seven on-off valves (32) are closed as appropriate in accordance with the auxiliary fuel ratio set earlier, and the secondary nozzle for main fuel (
23) is controlled so that the combustion heat from the primary nozzle (22) is 1%, and 30% (2).As a result, regardless of the change in the sublamp i'1 ratio, The next fuel ratio can be kept at a constant (large) level, reducing NOx generation to the required value of 1.
It is possible to effectively suppress strikes.
この場合、Ｉａ人燃焼口、１にＪ−３（プる副燃料比、
主燃料の２次ノズルの燃料流通本数ＪＪ Ｊ：ぴ同ノズ
ル通過主燃３゛ミ１の燃焼熱ｉｎ合５１、ならびに副灯
第３１の２次ノズルの燃オ゛」流通本数および同ノズル
通過副灯「１の燃焼熱（ｉｉ合計は、下記表に承りとお
りである。In this case, Ia combustion port, 1 to J-3 (auxiliary fuel ratio,
Number of fuel flows through the secondary nozzle of the main fuel JJ J: The combustion heat of the main fuel 3:1 in 51 passing through the same nozzle, and the number of fuel flows through the secondary nozzle of the auxiliary light No. 31 and the number of passages through the same nozzle. The combustion heat of auxiliary light 1 (ii) is as shown in the table below.
（以下余白）
以上のとおりで、この発明による燃料２段（Ｊｉ給燃焼
法では、主副２種類の燃料の２次供給Ｈを適宜変えるの
で、副灯おｌ比の変化に関係なく２次燃オ°３ｉ比を常
にＮＯＸの光生抑制条イ４（に保てことができる。(Blank below) As described above, in the two-stage fuel supply (Ji fuel supply and combustion method) according to the present invention, the secondary supply H of two types of main and sub-fuel is changed appropriately, so the secondary The fuel oil ratio can always be maintained at the NOx photogeneration suppression level.
第１図は横型円筒炉の燃焼部を示η”断面図、第２図（
まこのに明の実施例を示すフロー図で′ｄる。
〈２２）・・・１次ノズル、（２３）・・・主灯オ°＋
１の２ンノズル、（２４）・・・副燃料の２次ノズル、
（３０゜（３１）・・・調節弁、（３２） （３３）
・・・開閉弁。
以 上
外４名
）
ろ
＋７（
）
Ｌｌ、＝１： ＜ｌじ二」
手続補正書（方式）
％式％［１
、発明の名称 異種燃料を用いる燃料２段供給炊有
ト法３、補ｊＥをする者
事件との関係 持１．′１出願人工６．２い
（５１１）日立音船株式会、江４、代 坤 人
Ｇ−所 大阪市南［ヌ（１・２谷函之１１Ｑ’５７δ地
の６ イナバビル６階５ 補正命令υ）「汀」 昭
和５８千 ７月２６１！６、補正により増加する発１ノ
］の数
７、イｊＪ−，０） ’ＩＪ ：４２ 明細書の発明の
名称の欄。
８、補正の内容Figure 1 shows the combustion section of a horizontal cylindrical furnace, and Figure 2 (
A flow diagram illustrating an exemplary embodiment is shown below. <22)...Primary nozzle, (23)...Main light o +
1 2-inch nozzle, (24)... secondary fuel nozzle,
(30° (31)...Control valve, (32) (33)
...Open/close valve. 4 people other than the above) Ro + 7 ( ) Ll, = 1: <lji 2'' Procedural amendment (method) % formula % [1, Title of invention Fuel two-stage supply cooking method using different types of fuel 3, Supplement Relationship with the case of the person engaging in jE 1. '1 application artificial 6.2
(511) Hitachi Otosen Co., Ltd., E4, Daikon G-place, Osaka City Minami [nu (1/2 Tanibakoyuki 11Q'57δ ground 6 Inaba Building 6th floor 5 amendment order υ) "Tai" 1985 July 261! 6, number 7 of 1 no] increased by amendment, IjJ-, 0) 'IJ: 42 Column for the title of the invention in the specification. 8. Contents of amendment
Claims (1)
燃焼させるに当り、主副２種類の燃料を用い、各燃料の
２次供給量を適宜変えることにより、副燃料比に関係な
く２次燃石比を窒素酸化物発生抑制条イ′１に保つよう
にすることを特徴とりる、異種燃料を用いる燃料２段供
給燃焼法。When fuel is divided into the primary supply section and the secondary supply section and is supplied to the furnace for combustion, two types of fuel are used, the main and the sub. A two-stage fuel supply combustion method using different types of fuels, characterized in that the secondary fuel stone ratio is maintained at a nitrogen oxide generation suppression ratio A'1 regardless of the ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58070678A JPS59196964A (en) | 1983-04-21 | 1983-04-21 | Combustion under supplying different kinds of fuels in two steps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58070678A JPS59196964A (en) | 1983-04-21 | 1983-04-21 | Combustion under supplying different kinds of fuels in two steps |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59196964A true JPS59196964A (en) | 1984-11-08 |
| JPH0128845B2 JPH0128845B2 (en) | 1989-06-06 |
Family
ID=13438541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58070678A Granted JPS59196964A (en) | 1983-04-21 | 1983-04-21 | Combustion under supplying different kinds of fuels in two steps |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59196964A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007271258A (en) * | 2006-03-31 | 2007-10-18 | Alstom Technology Ltd | Burner system having stepwise fuel injection means, and control method therefor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5634005A (en) * | 1979-08-24 | 1981-04-06 | Babcock Hitachi Kk | Combustion device for low nox |
| JPS5743120A (en) * | 1980-08-29 | 1982-03-11 | Babcock Hitachi Kk | Operation of low nox boiler |
-
1983
- 1983-04-21 JP JP58070678A patent/JPS59196964A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5634005A (en) * | 1979-08-24 | 1981-04-06 | Babcock Hitachi Kk | Combustion device for low nox |
| JPS5743120A (en) * | 1980-08-29 | 1982-03-11 | Babcock Hitachi Kk | Operation of low nox boiler |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007271258A (en) * | 2006-03-31 | 2007-10-18 | Alstom Technology Ltd | Burner system having stepwise fuel injection means, and control method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0128845B2 (en) | 1989-06-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS60126511A (en) | Burner tip device for acceleration of vaporizing and improvement of burning | |
| JPS59196964A (en) | Combustion under supplying different kinds of fuels in two steps | |
| JPH01139919A (en) | Method and device for gas turbine combustion | |
| JPS6152522A (en) | Combustion method of gas turbine combustor and the like | |
| KR200209805Y1 (en) | Steam & Fuel Mix Gun Type Burner | |
| JPS6066020A (en) | Control method of air for combustion apparatus | |
| JPH0116925Y2 (en) | ||
| JP2984449B2 (en) | Gas turbine exhaust reburn burner | |
| JPS633205B2 (en) | ||
| JPS59147930A (en) | Fuel control device for double burner nozzle | |
| JPH07293826A (en) | Method and device for supplying vapor to burner | |
| JPS6311445Y2 (en) | ||
| JPS6237607A (en) | Starting procedure of burning device | |
| JPH0345007Y2 (en) | ||
| JPH0324968Y2 (en) | ||
| JPS5677607A (en) | Hydrogen combusting low-nox burner | |
| JP2001021135A (en) | Method for supplying fuel gas to gas burner requiring high turn down ratio | |
| JPS6191407A (en) | Oxygen-added emulsion fuel supply method for combustion equipment | |
| JPH0113209Y2 (en) | ||
| JPS60140006A (en) | Fuel supplying device in pulse combustion apparatus | |
| JPS6186512A (en) | Tank device | |
| JPS5541375A (en) | Liquid fuel combusting apparatus | |
| JPS62252819A (en) | Gas fuel supplier | |
| JPS596326B2 (en) | Low NO↓x device | |
| JPH04155110A (en) | Control method of proportional combustion in kerosene type hot water maker |