JPH02136601A - Burning apparatus - Google Patents
Burning apparatusInfo
- Publication number
- JPH02136601A JPH02136601A JP63290259A JP29025988A JPH02136601A JP H02136601 A JPH02136601 A JP H02136601A JP 63290259 A JP63290259 A JP 63290259A JP 29025988 A JP29025988 A JP 29025988A JP H02136601 A JPH02136601 A JP H02136601A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- nox
- exhaust gas
- combustion
- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 claims description 35
- 238000000926 separation method Methods 0.000 claims description 29
- 239000012141 concentrate Substances 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 84
- 239000002912 waste gas Substances 0.000 abstract 3
- 230000003009 desulfurizing effect Effects 0.000 abstract 1
- 239000000779 smoke Substances 0.000 abstract 1
- 229910002089 NOx Inorganic materials 0.000 description 14
- 238000000034 method Methods 0.000 description 11
- 239000000446 fuel Substances 0.000 description 10
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000009841 combustion method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000003463 adsorbent Substances 0.000 description 4
- 238000003795 desorption Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 1
- 229910002530 Cu-Y Inorganic materials 0.000 description 1
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000002336 sorption--desorption measurement Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はボイラ、ガスタービン及び各種エンジンなどの
燃焼装置の改良に関し、特に該装置から排出される排ガ
ス中の窒素酸化物（ＳＯＸ ）を低減しうる燃焼装置に
関する。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to improvements in combustion devices such as boilers, gas turbines, and various engines, and in particular to reducing nitrogen oxides (SOX) in exhaust gas emitted from the devices. The present invention relates to a combustion device that can be used.
光化学スモッグの発生に関連して、！ＵＯｘに関心がよ
せられているがｂｏｘは自動車の排出ガスに含まれてい
るだけでなくジェットエンジン、ボイラなどほとんどす
べての燃焼装置の排ガスに含まれている。In connection with the occurrence of photochemical smog! Although there is a lot of interest in UOx, UOX is not only included in the exhaust gas of automobiles, but also in the exhaust gas of almost all combustion devices such as jet engines and boilers.
窒素酸化物の種類は多いが燃焼によって発生し、かつ大
気汚染で問題になっているのは主に一酸化窒素（ＳＯ）
と二酸化窒素（ＩＪＯ，）である。There are many types of nitrogen oxides, but the one that is generated through combustion and is the main cause of air pollution is nitric oxide (SO).
and nitrogen dioxide (IJO,).
ＭＯＸの生成は燃料中の窒素分にはそれほど関係なく、
燃焼用空気中のＮ、とＯｌとが高温下で反応してＮｏ
となり、さらにその一部が酸化さ几てＮＯｌとなるこ
とによって生成される。The generation of MOX has little to do with the nitrogen content in the fuel.
N and Ol in the combustion air react at high temperatures to form No.
It is produced by further oxidizing a part of it to become NOl.
これらを式（１） 、 （２１に示す。These are shown in equations (1) and (21).
ＰＩ、 ＋ Ｏ，、！ ２ＮＯ（１）２ＮＯ＋ Ｏ
，、！ ２ＮＯ，ｔ２）又（１）式だけを考えた場合
のＮＯ濃度ははソ表１に示す通りである。PI, + O,,! 2NO(1)2NO+ O
,,! 2NO, t2) or the NO concentration when only equation (1) is considered is as shown in Table 1.
表１
ＭＯの平衡濃度〔優〕
以上の事実より、１ＩＯｘ生成を抑制する手段としては
、低酸素燃焼及び火炎温度の低下が有効であると考えら
れ稽々の手段が採用もしくは提案されていた。Table 1 Equilibrium concentration of MO [Excellent] Based on the above facts, low oxygen combustion and lowering the flame temperature were considered to be effective means for suppressing the production of 1IOx, and unscrupulous measures were adopted or proposed.
それらは安藤淳平著「燃料転換とＢＯｘ−ＭＯｘ対策技
術技術１９１３５年６月２５′日発行）及び小早用隆著
「自動車排出ガス公害の問題」（日本機械学会誌、１９
７１年３月号、第７４巻、Ｖｏｌ、 ６２６号、 ２１
７〜２２７頁）などに詳述されておシ、概略は次の通り
である。These are Junpei Ando, ``Fuel Conversion and BOx-MOx Countermeasure Technology, Published June 25, 19135'' and Takashi Kobaya, ``Problems of Automotive Exhaust Gas Pollution'' (Journal of the Japan Society of Mechanical Engineers, 1991).
March 1971 issue, Volume 74, Vol. 626, 21
7-227), etc., and the outline is as follows.
〔■〕：運転条件の改善
（１−１）：運転空気比範囲の変更
例えば重油だきボイラにおける過剰Ｏ２の低減としては
、５％から［１５％に減少することによＦ） ＩＵＯＸ
を約２２０ ｐＩ）ｍから約１）００ｐｐに減少させた
列がある。[■]: Improving operating conditions (1-1): Changing the operating air ratio range For example, to reduce excess O2 in a heavy oil-fired boiler, reduce it from 5% to [15%] IUOX
There is a column in which the pI) is reduced from about 220 pI)m to about 1)00pp.
又自動車用エンジンでも希薄燃焼の効果が報告されてい
る。The effects of lean burn have also been reported in automobile engines.
（１−２）：エア・レジスター操作による燃焼室内混合
特性の変更流動床燃焼
（１−３） ：燃焼室熱負荷の低減
（１−４）：燃焼用空気予熱の低減
〔■〕：燃焼方法の改善
（１［−１）：バーナの改善
混合促進法、分割火炎法、自己再循環法、段階的燃焼法
及び組込み法などがある。(1-2): Change of combustion chamber mixing characteristics by air register operation Fluidized bed combustion (1-3): Reduction of combustion chamber heat load (1-4): Reduction of combustion air preheating [■]: Combustion method Improvement of (1 [-1)] Burner improvements include the accelerated mixing method, the split flame method, the self-recirculation method, the staged combustion method, and the built-in method.
（ＩＩ−２）：段階的燃焼法の採用
濃淡燃焼法又は二段燃焼法などであり、後者の例として
Ｂｕｒｎｈａｒｔ らは理論空気量の９０係を主バー
ナに送り、残りの所要空気をバーナの下流で供給し、最
高温度が１段燃焼の火炎温度よシ低くなるようにしてＭ
ｏｘを４７％減少させたと報告している（ Ｂｕｒｎｈ
ａｒｔ。(II-2): Adoption of a staged combustion method The concentration combustion method or the two-stage combustion method is used. As an example of the latter, Burnhart et al. M is supplied downstream so that the maximum temperature is lower than the flame temperature of the first stage combustion.
reported that it reduced ox by 47% (Burnh
art.
Ｄ、 Ｈ，、他１名、Ｊ、Ａｉｒ Ｐｏ１ｌｕｔｉｏｎ
０ｏｎｔｒ。D, H,, 1 other person, J, Air Po1lution
0ontr.
Ａ３８０Ｑ、、 １０ （１９６０）、 ５９７ ’）
（Ｉｌｌ）：排ガス循環燃焼
自動車などでは各種低減法のうち最も有望とみられてい
るもので、排気循環装着に、 Ｇ、 Ｒ。A380Q, 10 (1960), 597')
(Ill): This is considered to be the most promising of the various reduction methods for exhaust gas recirculation combustion vehicles, etc., and G and R are used for exhaust gas recirculation installation.
（Ｅｘｈａｕｓｔ Ｇａｓ Ｒｅｃｉｒｃｕｌａｔｉｏ
ｎ ）によって５〜１５係の排気を吸入させ、燃焼温度
及び０゜濃度を低下させる方法である。(Exhaust Gas Recirculation
In this method, the combustion temperature and 0° concentration are lowered by inhaling exhaust gas of 5 to 15 ratios according to n).
発電用ボイラなどについても、ガス循環ファン（Ｇ、Ｒ
，ＩＦ）などを設置することで使用されている。Gas circulation fans (G, R) are also used for power generation boilers, etc.
, IF), etc.
（■−４〕；水又は水蒸気噴射゛
ガスタービン燃焼器などで採用されておシ、それなりの
効果をあげている。(■-4); Water or steam injection has been adopted in gas turbine combustors, etc., and has achieved certain effects.
又、上記技術を採用してもＮＯ！生成が排ガス規制値を
充たさぬ場合には各種ＮＯ！除去装置が採用されている
。具体的には表２に乾式法を表３に湿式法を示す。Also, even if you adopt the above technology, NO! If the generation does not meet the exhaust gas regulation value, various NO! A removal device is used. Specifically, Table 2 shows the dry method, and Table 3 shows the wet method.
排出ガス中のＭＯｘ濃度の規制値は、エネルギ消費総量
の増大と共に低くない。それに対応する経済的な脱硝装
置が求められているが魅力的なものがないのが現状であ
る。The regulatory value of MOx concentration in exhaust gas does not decrease as the total amount of energy consumption increases. There is a need for an economical denitrification device to meet this demand, but at present there is no attractive one.
即ち発生量を抑制するには燃焼温度の低減又は０．量の
低減が必要であシ、燃焼効率及び出力の低下を招くこと
が多かった。In other words, to suppress the amount generated, the combustion temperature must be reduced or 0. This required a reduction in the amount of fuel, often resulting in a reduction in combustion efficiency and power output.
又排ガス中からＢｏｘを除去するには多量の触媒を又、
時にはアンモニアを必要とし設備費及び寿命の点で問題
であった。In addition, in order to remove Box from exhaust gas, a large amount of catalyst is also required.
Sometimes ammonia is required, which poses problems in terms of equipment cost and service life.
本発明は上記技術水準に鑑み、燃焼効率及び出力を低下
させることなく、シかも設備の安価なりＯｘの排出を低
く訃さえることのできる燃焼装置を提供しようとするも
のである。In view of the above-mentioned state of the art, the present invention aims to provide a combustion device that can reduce the cost of equipment and reduce Ox emissions without reducing combustion efficiency and output.
本発明は
（１） 燃焼装置、該燃焼装置からの排ガス中のＮＯ
ｘを濃縮分離するガス分離装置、該ガス分離装置で濃縮
されたＮＯ！Ｏｘガスを前記燃焼装置に返送する手段及
び前記ガス分離装置から排出される希薄ＮＯ！Ｏｘガス
を系外に放出する手段を具備することを特徴とする燃焼
装置
である。The present invention provides (1) a combustion device, NO in exhaust gas from the combustion device;
A gas separation device that concentrates and separates NO! Means for returning Ox gas to said combustion device and lean NO! exhausted from said gas separation device. This combustion device is characterized by comprising means for releasing Ox gas to the outside of the system.
本発明においてガス分離装置としては、圧力変動式ガス
分離装置を採用するのが好ましい。In the present invention, it is preferable to employ a pressure fluctuation type gas separation device as the gas separation device.
圧力変動式ガス分離装置は空気中のちと０！を分離する
際に広く使用されているものであるが、相対的に高圧下
で原料ガス中の易吸着成分を吸着剤に吸着させて難吸着
成分を放出させ、吸着剤に吸着した易吸着成分を相対的
に低圧下で脱着して濃縮された易吸着成分を含有するガ
スを取得する装置である。The pressure fluctuating gas separation device has 0 power in the air! This method is widely used to separate easily adsorbed components in the raw material gas under relatively high pressure, and the easily adsorbed components in the raw material gas are adsorbed onto the adsorbent and the poorly adsorbed components are released. This device obtains concentrated gas containing easily adsorbable components by desorbing them under relatively low pressure.
ガス分離装置で分離回収される高濃度ＮＯｘ含有ガスを
燃焼装置に返送すると、燃焼装置の温度下の化学平衡に
よシ、前記（１）又は（２）式の反応は右辺から左辺に
向って進行し、その結果Ｂｏｘはｌｉ、とＯ８に公簿さ
れるので、ガス分離装置から排出される排ガス中のＢｏ
ｘ濃度はある一定値以上にはならない。When the high-concentration NOx-containing gas separated and recovered by the gas separation device is returned to the combustion device, due to chemical equilibrium at the temperature of the combustion device, the reaction in equation (1) or (2) above proceeds from the right side to the left side. As a result, Box is registered as li in O8, so that Bo in the exhaust gas discharged from the gas separation device
The x concentration does not exceed a certain value.
ま九、ガス分離装置から排出される排ガス中のＮｏｘ濃
度がなお高い場合には従来よシ用いられている脱硝装置
を後流に設置することもあるが、Ｂｏｘ量が相対的に低
くなっているので、設置する脱硝装置は小型ですむこと
になる。Also, if the NOx concentration in the exhaust gas discharged from the gas separation device is still high, a denitrification device, which is conventionally used, may be installed downstream, but the amount of NOx is relatively low. Therefore, the denitrification equipment installed can be small.
〔実施例１〕
第１図は本発明を発電用ボイラに適用した列を示すもの
である。[Embodiment 1] FIG. 1 shows a row in which the present invention is applied to a power generation boiler.
第１図において、１）はボイラ、１２ｒｉ空気予熱器、
１３は熱交換器、１４は脱硫装置、１５は煙突、１６＃
−ｉ、燃料ボンダ、１７はエアフィルタ、１８は真空ポ
ンプ、１９は高濃度ＮＯｘ含有ガス返送管、２０はファ
ンであシ、ムはＮＯｘ分離回収装置を示す。In Figure 1, 1) is a boiler, a 12ri air preheater,
13 is a heat exchanger, 14 is a desulfurizer, 15 is a chimney, 16#
-i is a fuel bonder, 17 is an air filter, 18 is a vacuum pump, 19 is a high concentration NOx-containing gas return pipe, 20 is a fan, and mu is a NOx separation and recovery device.
第２図は第１図のＮｏＩＣ分離回収装置の一列を示す図
であシ、こ＼では圧力変動式ガス分離装置を示す。FIG. 2 is a diagram showing one row of the NoIC separation and recovery device shown in FIG. 1, and this figure shows a pressure fluctuation type gas separation device.
第２図において、ムは圧力変動式ガス分離装置であり、
ム０．ム、は２つの吸脱着塔、Ｂ１〜Ｂ、は弁、Ｃは真
空ポンプ、Ｄはボイラからの排ガスライン、Ｋはボイラ
への返送ライン（第１図の１９に相当）、Ｆは低濃度Ｎ
Ｏ！Ｏｘガスを煙突へ送るラインである。In Fig. 2, mu is a pressure fluctuation type gas separation device;
Mu0. , B1 to B are the valves, C is the vacuum pump, D is the exhaust gas line from the boiler, K is the return line to the boiler (corresponds to 19 in Figure 1), F is the low concentration N
O! This is the line that sends Ox gas to the chimney.
ボイラ１）からの排ガスは空気予熱器１２でエアフィル
タ１７を介して供給される空気を予熱し、ＮＯｘ分離回
収装置（こ＼では圧力変動式ガス分離装置）Ａに導かれ
る。こ＼で相当量のＢＯＸが除去された後、ファン２０
、予熱器１３を経て脱硫装置１４に導かれる。こ＼で脱
硫された排ガスは予熱器１５で昇温されて煙突１５よシ
大気中に放出される。Exhaust gas from the boiler 1) is supplied to an air preheater 12 through an air filter 17, and the exhaust gas is preheated by an air preheater 12, and then guided to a NOx separation and recovery device (in this case, a pressure fluctuation type gas separation device) A. After a considerable amount of BOX is removed with this, fan 20
, and is led to a desulfurizer 14 via a preheater 13. The exhaust gas desulfurized here is heated in a preheater 15 and discharged into the atmosphere through the chimney 15.
こ＼における圧力変動式ガス分離装置においては、Ｂｏ
ｘ吸着剤を充填した脱着塔に相対的に高圧下で排ガスを
供給し、吸着剤にＮＯｘを吸着させ、低１４０ｘ含有ガ
スを放出させ、吸着剤に吸着した１４０ｘは相対的に減
圧して高濃度１ｏｇ含有ガスを採取するものである。In this pressure fluctuation type gas separation device, Bo
Exhaust gas is supplied under relatively high pressure to a desorption tower filled with x adsorbent, the adsorbent adsorbs NOx, and gas containing low 140x is released. This is to collect gas containing a concentration of 1 og.
累２図における圧力変動式ガス分離装置は、連続処理が
できるように２つの吸脱着基ム、。The pressure fluctuating gas separation device in Fig. 2 has two adsorption/desorption groups to enable continuous processing.
Ａ、を弁Ｂ、〜Ｂ１の開閉によシ吸漕、脱着が交互に行
えるようにし次ものであシ、一方、例えば吸脱着基Ａ、
が吸着工程にある時には他方の例えばＡ、は脱着工程に
あるようにしたものである。A, by opening and closing valves B, ~B1, so that adsorption and desorption can be performed alternately;
When A is in the adsorption process, the other one, for example A, is in the desorption process.
第１図、第２図よシなる系において、ボイラ１）から送
られてくる排ガス（第２図のラインＤの排ガス）１［Ｌ
ＯＯ０１）ｍ７ｈ（ＮＯｘ： ５００ｐｐｍ％ Ｌ２ａ
ｔａ、８０〜１００℃）を第２図の圧力変動式ガス分離
装置（吸着剤：Ｃｕ−Ｙ型ゼオライト）に送シ、排ガス
中のＮＯＸを吸着除去した排ガス（第２図のラインＦの
排ガス）は９、５００１ｍ”／ｈ （ＮＯＸ ： １
０ ｐｐｍ ｓ １−１ ａｔａ ｓ８０〜１００℃
）であり、吸着したＢｏｘ ｔ−ＣＬＯ５ａｔａで減圧
して脱着し、真空ポンプＣを経て取出される排ガス（第
２図のラインＥの排ガス）は５００１Ｊｍ”／ｈ（Ｂｏ
ｘ：１（ＬＯＯＯｐｐｍ、１ｙ１ａｔａ、８０〜１００
℃）であった。In the system shown in Figures 1 and 2, the exhaust gas (exhaust gas on line D in Figure 2) sent from the boiler 1) 1[L
OO01) m7h (NOx: 500ppm% L2a
ta, 80 to 100°C) is sent to the pressure fluctuation type gas separation device (adsorbent: Cu-Y type zeolite) shown in Figure 2, and the exhaust gas from which NOx in the exhaust gas is adsorbed and removed (exhaust gas in line F in Figure 2) is ) is 9,5001m”/h (NOx: 1
0 ppm s 1-1 ata s80~100℃
), and the exhaust gas (exhaust gas on line E in Figure 2) that is depressurized and desorbed by the adsorbed Box t-CLO5ata and taken out via vacuum pump C (exhaust gas on line E in Figure 2) is 5001 Jm''/h (Bo
x: 1 (LOOOppm, 1y1ata, 80-100
℃).
なお、この場合、ボイラ１）での燃焼条件は下記の通シ
であった。In this case, the combustion conditions in boiler 1) were as follows.
〔実施列２〕
第３図は本発明をエンジンに適用した例を示すものであ
る。[Embodiment 2] FIG. 3 shows an example in which the present invention is applied to an engine.
第３図において、３１はピストンエンジン、３２は給気
混合器、５３はマフラー ５４は給気弁、５５は排気弁
、３６は燃料混合器、５７は出力軸、３８は排気（高Ｍ
Ｏｘ含有ガス）循環ライン、１６は燃料ポン７’、１７
はエアフィルタであシ、ムは前記第２図によって説明し
たような圧力変動式ガス分離装置を示す。In Fig. 3, 31 is a piston engine, 32 is an air intake mixer, 53 is a muffler, 54 is an air intake valve, 55 is an exhaust valve, 36 is a fuel mixer, 57 is an output shaft, and 38 is an exhaust (high M
(Ox-containing gas) circulation line, 16 is a fuel pump 7', 17
is an air filter, and M is a pressure fluctuation type gas separation device as explained with reference to FIG. 2 above.
ピストンエンジン３１の排気弁３５よシ出て来た排ガス
は圧力変動式ガス分離装置Ａに導かれ、そこで高ＮＯｘ
濃度含有排ガスと低１）０ｘ濃度含有排ガスとに分離さ
れ、後者はマフラー３３を経て系外に放出され、前者は
排気循還ライン３８を経て給気混合器３２に導かれ、こ
＼でエアフィルタ１７を介して供給された空気と混合さ
れた後、燃料混合器３６に導かれ、こ＼で燃料ポンプ１
６によって供給された燃料と混合され、給気弁５４を介
してピストンエンジン３１内に送られる。The exhaust gas coming out of the exhaust valve 35 of the piston engine 31 is led to the pressure fluctuation type gas separation device A, where it is
The exhaust gas containing high concentration and the exhaust gas containing low 1) 0x concentration are separated, the latter being discharged outside the system through the muffler 33, and the former being led to the supply air mixer 32 through the exhaust recirculation line 38, where the air is After being mixed with the air supplied through the filter 17, it is led to the fuel mixer 36, where the fuel pump 1
6 is mixed with the fuel supplied by the air supply valve 54 and sent into the piston engine 31 via the air intake valve 54.
〔実施列３〕
第４図は本発明をピストンより排出筋れた排ガスのもつ
エネルギーを排ガスタービンで回収するプラントに適用
した列を示すものである。[Embodiment 3] Fig. 4 shows a case in which the present invention is applied to a plant in which the energy of exhaust gas discharged from a piston is recovered by an exhaust gas turbine.
第４図において第３図と同一符号は第３図と同一部分を
示し、５９は排気タービン、４０はコンプレッサ、４１
は０．富化装置を示す。In FIG. 4, the same symbols as in FIG. 3 indicate the same parts as in FIG. 3, 59 is an exhaust turbine, 40 is a compressor, 41
is 0. The enrichment device is shown.
この例はピストンエンジン５１の排気弁３５より出て来
た排ガスを排気タービン３９でエネルギーを回収した後
、圧力変動式ガス分離装置ムに導く点、及び給気系に０
．富化装置４１を設け、給気混合気３２からの０！富化
空気と高１）０ｚ含有排ガスの混合気体をコンプレッサ
４０（この動力は排気タービン３９で回収され九エネル
ギーで補充される）で加圧された後燃料混合器３６に供
給される点を除いては第３図と基本的には同じである。In this example, energy is recovered from the exhaust gas coming out of the exhaust valve 35 of the piston engine 51 in the exhaust turbine 39, and then the exhaust gas is introduced into the pressure fluctuation type gas separation device and the supply air is connected to the exhaust gas.
．． An enrichment device 41 is provided to remove 0! from the charge air mixture 32! Except that the mixture of enriched air and high 1) 0z-containing exhaust gas is compressed by a compressor 40 (the power is recovered by an exhaust turbine 39 and supplemented with 9 energy) and then supplied to the fuel mixer 36. are basically the same as in Figure 3.
〔実施列４〕 第５図は本発明をガスタービンへ適用した列を示す。[Implementation row 4] FIG. 5 shows a series of applications of the invention to a gas turbine.
第５図において、第４図と同一符号は第４図と同一部分
を示し、３９ａはコンプレッサ４０用タービン、３９ｂ
は排気用（出力発生用）タービン、４２は減速ギアを示
す。In FIG. 5, the same symbols as in FIG. 4 indicate the same parts as in FIG. 4, 39a is a turbine for the compressor 40, 39b
Reference numeral 42 indicates an exhaust turbine (for output generation) and a reduction gear.
ガスタービン中、出力発生用タービン３９）を出た高温
ガスは再生回転式熱交換器１３を経て圧力変動式ガス分
離装置ムに導かれ、高ＮＯｘ含有排ガスと低ＮＯｘ含有
排ガスとに分離され、低ＮＯｘ含有排ガスはマフラー５
３を経て系外に放出される。In the gas turbine, high-temperature gas exiting the output generating turbine 39) is led to a pressure fluctuation type gas separation device via a regenerative rotary heat exchanger 13, and is separated into high NOx-containing exhaust gas and low NOx-containing exhaust gas, Muffler 5 for low NOx-containing exhaust gas
3 and is released outside the system.
一方、高Ｂｏｘ含有排ガスは循環ライン５８ｆ：介して
コンプレッサ４０人口で空気と混合され、加圧されて燃
焼部に入る。On the other hand, the high Box content exhaust gas is mixed with air in the compressor 40 through the circulation line 58f, pressurized, and enters the combustion section.
本発明燃焼装置によれば、■燃焼装置から排出される排
ガス中のＨｏｚを他の物質に転換させる装置が全く不要
もしくは著しく小型にすることができ、■高温燃焼及び
酸素富化空気使用燃焼を脱ＮＯＸを考慮せずに行うこと
ができ、■ち分を多量に含む燃料へＯ対応も容易になる
効果を奏する。According to the combustion device of the present invention, (1) a device for converting Hoz in the exhaust gas emitted from the combustion device into other substances can be made completely unnecessary or significantly smaller; and (2) high-temperature combustion and combustion using oxygen-enriched air can be achieved. This can be done without considering the removal of NOx, and has the effect of making it easier to deal with fuel containing a large amount of nitrogen.
第１図は本発明を発電ボイラに適用した実施列を示す系
統図、第３図は本発明をエンジンに適用した実施例を示
す系統図、第４図は本発明を排ガスタービンに適用した
実施列を示す系統図、第５図は本発明をガスタービンに
適用した実施例を示す系統図、第２図は本発明における
１）０Ｘ ！ｌ縮分離するガス分離装置の一態様とじて
の圧力変動式ガス分離装置の概要を説明するための図で
ある。Fig. 1 is a system diagram showing an embodiment in which the invention is applied to a power generation boiler, Fig. 3 is a system diagram showing an embodiment in which the invention is applied to an engine, and Fig. 4 is an embodiment in which the invention is applied to an exhaust gas turbine. Fig. 5 is a system diagram showing an embodiment in which the present invention is applied to a gas turbine, and Fig. 2 is a system diagram showing the 1) 0X! BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram for explaining an overview of a pressure fluctuation type gas separation device as one embodiment of a gas separation device that performs condensation separation.
Claims (2)
濃縮分離するガス分離装置、該ガス分離装置で濃縮され
たＮＯｘ含有ガスを前記燃焼装置に返送する手段及び前
記ガス分離装置から排出される希薄ＮＯｘ含有ガスを系
外に放出する手段を具備することを特徴とする燃焼装置
。(1) A combustion device, a gas separation device that concentrates and separates NOx in the exhaust gas from the combustion device, a means for returning the NOx-containing gas concentrated in the gas separation device to the combustion device, and a means for returning the NOx-containing gas concentrated in the gas separation device to the combustion device; A combustion device characterized by comprising means for discharging dilute NOx-containing gas to the outside of the system.
求項（１）記載の燃焼装置。(2) The combustion device according to claim (1), wherein the gas separation device is a pressure fluctuation type gas separation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63290259A JP2548781B2 (en) | 1988-11-18 | 1988-11-18 | Combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63290259A JP2548781B2 (en) | 1988-11-18 | 1988-11-18 | Combustion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02136601A true JPH02136601A (en) | 1990-05-25 |
| JP2548781B2 JP2548781B2 (en) | 1996-10-30 |
Family
ID=17753821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63290259A Expired - Fee Related JP2548781B2 (en) | 1988-11-18 | 1988-11-18 | Combustion device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2548781B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002360515A (en) * | 2001-06-06 | 2002-12-17 | Pentax Corp | Endoscope |
| JP2010533117A (en) * | 2007-07-13 | 2010-10-21 | レール・リキード−ソシエテ・アノニム・プール・レテュード・エ・レクスプロワタシオン・デ・プロセデ・ジョルジュ・クロード | Method for purifying gas containing CO2 |
-
1988
- 1988-11-18 JP JP63290259A patent/JP2548781B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002360515A (en) * | 2001-06-06 | 2002-12-17 | Pentax Corp | Endoscope |
| JP2010533117A (en) * | 2007-07-13 | 2010-10-21 | レール・リキード−ソシエテ・アノニム・プール・レテュード・エ・レクスプロワタシオン・デ・プロセデ・ジョルジュ・クロード | Method for purifying gas containing CO2 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2548781B2 (en) | 1996-10-30 |
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