JPH09313891A - Ammonia injection device for waste gas denitrification device - Google Patents
Ammonia injection device for waste gas denitrification deviceInfo
- Publication number
- JPH09313891A JPH09313891A JP8135391A JP13539196A JPH09313891A JP H09313891 A JPH09313891 A JP H09313891A JP 8135391 A JP8135391 A JP 8135391A JP 13539196 A JP13539196 A JP 13539196A JP H09313891 A JPH09313891 A JP H09313891A
- Authority
- JP
- Japan
- Prior art keywords
- ammonia
- air
- steam
- dust
- exhaust gas
- 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
Landscapes
- Treating Waste Gases (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
Description
【０００１】[0001]
【発明が属する技術分野】本発明は、排ガス脱硝装置の
アンモニア注入装置に係り、特に、アンモニア注入ノズ
ル近傍へのダストの付着を防止することができる、排ガ
ス脱硝装置のアンモニア注入装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ammonia injection device for an exhaust gas denitration device, and more particularly to an ammonia injection device for an exhaust gas denitration device which can prevent dust from adhering to the vicinity of an ammonia injection nozzle.
【０００２】[0002]
【従来の技術】各種プラントから排出される排ガスの処
理装置として、例えばアンモニア接触還元式の脱硝装
置、集塵器、脱硫装置等が使用されている。図６は、石
炭焚ボイラ装置の排ガス処理装置を示す説明図である。
図において、石炭焚ボイラ装置９の排ガス煙道に順次、
脱硝反応器１０、空気予熱器１１、集塵器１２および脱
硫装置１３が設けられており、脱硝反応器１１の前流側
にはアンモニア（ＮＨ3 ）を注入するためのＮＨ3 注入
管２が連結されている。１４は煙突である。ボイラ装置
９から排出された排ガスはＮＨ3 注入管２から注入され
たＮＨ3 と混合したのち脱硫反応器に流入し、ここで排
ガス中の窒素酸化物（ＮＯｘ）が脱硝触媒の存在下、Ｎ
Ｈ3 と接触してＮ2 に還元、除去される。脱硝反応器１
０を流出した脱硝処理後排ガスは、空気予熱器１１を経
て集塵器１２に流入し、ここで固形粉が除去され、次い
で、その後流の脱硫装置１３に流入して脱硫処理された
後、煙突１４から浄化排ガスとして大気に放出される。2. Description of the Related Art As a device for treating exhaust gas discharged from various plants, for example, an ammonia catalytic reduction type denitration device, a dust collector, a desulfurization device and the like are used. FIG. 6 is an explanatory diagram showing an exhaust gas treatment device of a coal-fired boiler device.
In the figure, the exhaust gas flues of the coal-fired boiler device 9 are sequentially
A denitration reactor 10, an air preheater 11, a dust collector 12, and a desulfurization device 13 are provided, and an NH 3 injection pipe 2 for injecting ammonia (NH 3 ) is provided on the upstream side of the denitration reactor 11. It is connected. 14 is a chimney. The exhaust gas discharged from the boiler device 9 is mixed with NH 3 injected from the NH 3 injection pipe 2 and then flows into the desulfurization reactor, where nitrogen oxides (NOx) in the exhaust gas are converted into N 2 in the presence of a denitration catalyst.
Upon contact with H 3, it is reduced to N 2 and removed. Denitration reactor 1
The exhaust gas after denitration treatment, which has flowed out of 0, flows into the dust collector 12 via the air preheater 11 where solid powder is removed, and then flows into the desulfurization device 13 in the subsequent flow to be desulfurized, It is released from the chimney 14 into the atmosphere as purified exhaust gas.
【０００３】ところで、石炭焚ボイラ装置等の燃焼プラ
ントから排出される排ガスには、窒素酸化物（ＮＯｘ）
のほかダストや硫黄酸化物（ＳＯｘ）が含まれており、
脱硝装置のアンモニア注入ノズルにダストが付着してＮ
Ｈ3 の噴出方向が変化したり、目詰まりが生じるなどの
問題が発生している。図４は、このような脱硝装置にお
ける従来のＮＨ3 注入装置を示す説明図である。図にお
いて、脱硝装置入口ダクト１の断面ほぼ全域にアンモニ
ア３を注入するＮＨ3 注入管２が配置されている。そし
て、例えば空気で希釈されたアンモニア３は、各ＮＨ3
注入管２を流通したのち、ノズル６（図５参照）からダ
クト内に噴出され、図示省略した脱硝触媒の存在下で排
ガス中のＮＯｘと接触してこれをＮ2 に還元する。この
ときアンモニア３の一部は排ガスに含まれるＳＯｘと反
応して酸性硫安となるが、この酸性硫安および排ガスに
含まれるダストが、図５に示すように、ＮＨ3 注入管２
の注入ノズル６付近に付着、堆積する。酸性硫安は粘着
性があるために、ダストの付着、堆積を促進するように
はたらく。また、酸性硫安は時間の経過とともに固化
し、付着堆積ダストが飛灰として飛散するのを妨害す
る。このようにして、ＮＨ3 注入管２に堆積付着ダスト
８が堆積すると、ＮＨ3 注入ノズル６が閉塞したり、Ｎ
Ｈ3 噴出方向が変化するなどの原因となる。By the way, nitrogen oxides (NOx) are contained in exhaust gas discharged from a combustion plant such as a coal-fired boiler device.
In addition to dust and sulfur oxide (SOx),
If dust adheres to the ammonia injection nozzle of the denitration device, N
Problems such as a change in the jetting direction of H 3 and clogging occur. FIG. 4 is an explanatory diagram showing a conventional NH 3 injection device in such a denitration device. In the figure, an NH 3 injection pipe 2 for injecting ammonia 3 is arranged in almost the entire cross section of the denitration device inlet duct 1. Then, for example, ammonia 3 diluted with air, the NH 3
After flowing through the injection pipe 2, it is ejected from the nozzle 6 (see FIG. 5) into the duct and contacts NOx in the exhaust gas in the presence of a denitration catalyst (not shown) to reduce it to N 2 . At this time, a part of the ammonia 3 reacts with SOx contained in the exhaust gas to become acidic ammonium sulfate, and the acidic ammonium sulfate and the dust contained in the exhaust gas form the NH 3 injection pipe 2 as shown in FIG.
Is deposited and deposited in the vicinity of the injection nozzle 6. Since acidic ammonium sulfate is sticky, it works to promote the adhesion and deposition of dust. In addition, acidic ammonium sulfate solidifies with the passage of time and prevents the adhered and accumulated dust from flying as fly ash. In this way, when the deposition adhered dust 8 is deposited on the NH 3 injection pipe 2, the NH 3 injection nozzle 6 is blocked or the N 3 injection nozzle 6 is closed.
This may cause a change in the H 3 ejection direction.
【０００４】従来、ＮＨ3 注入装置に付着したダスト
は、プラント点検時または停止時に人手によって清掃、
除去されていたが、プラント起動時は清掃することがで
きず、ＮＨ3 の噴出方向が変化したり、ＮＨ3 注入ノズ
ル６が目詰まりしたりすると、排ガス中へのＮＨ3 の分
散性が変化し、ひいては脱硝装置出口のＮＯｘまたはＮ
Ｈ3 の分布が経時的に変化し、結果として脱硝装置をは
じめとする排ガス処理装置全体の運転、管理上の信頼性
が低下するという問題となる。また、ＮＨ3 の分布の変
化状況によっては局所的にＮＨ3 濃度の高い部分ができ
るので、脱硝装置後流の空気予熱器の閉塞を早めるとい
う問題が生じることにもなる。Conventionally, the dust attached to the NH 3 injection device is manually cleaned at the time of plant inspection or at the time of plant shutdown.
Had been removed, the plant startup can not be cleaned, ejection direction may change in the NH 3, the NH 3 injection nozzle 6 is clogged, the dispersibility change of the NH 3 into the flue gas NOx or N at the outlet of the denitration device
The distribution of H 3 changes with time, and as a result, there is a problem in that the reliability of the operation and management of the exhaust gas treatment apparatus including the denitration apparatus is reduced. Further, since some distribution changing status of the NH 3 can be locally NH 3 concentrations higher part, it becomes a problem that hasten the closure of the air preheater after denitrator flow is generated.
【０００５】[0005]
【発明が解決しようとする課題】本発明の目的は、上記
従来技術の問題点を解決し、ＮＨ3 注入管へのダストの
付着を防止して注入ノズルの閉塞を防止し、ＮＨ3 を長
期間安定して排ガス中に注入することができる、脱硝装
置のＮＨ3 注入装置を提供することにある。SUMMARY OF THE INVENTION The object of the present invention is to solve the above-mentioned problems of the prior art, to prevent dust from adhering to the NH 3 injection pipe, to prevent clogging of the injection nozzle, and to prevent NH 3 from increasing. An object of the present invention is to provide an NH 3 injecting device for a denitration device, which can be stably injected into exhaust gas for a period.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するた
め、本願で特許請求する発明は以下のとおりである。 （１）排ガス煙道内に設けられた注入ノズルからアンモ
ニアを噴出して排ガス中の窒素酸化物と接触させて該窒
素酸化物を還元、除去する排ガス脱硝装置のアンモニア
注入装置において、前記アンモニアの注入ノズルに空気
または蒸気を吹き付けるダスト除去手段を設けたことを
特徴とする排ガス脱硝装置のアンモニア注入装置。 （２）前記ダスト除去手段が、空気または蒸気配管と、
該配管に設けられた複数の噴出ノズルと、前記空気また
は蒸気配管を配管中心軸を中心として回転させるか、ま
たは前記アンモニア注入ノズルに対して上下動させる、
空気または蒸気の噴出方向変更手段を有することを特徴
とする上記（１）記載の脱硝装置のアンモニア注入装
置。Means for Solving the Problems To achieve the above object, the invention claimed in the present application is as follows. (1) Injecting ammonia in an ammonia injecting device of an exhaust gas denitration device for ejecting ammonia from an injection nozzle provided in an exhaust gas flue and bringing it into contact with nitrogen oxides in exhaust gas to reduce and remove the nitrogen oxides An ammonia injection device for an exhaust gas denitration device, characterized in that a dust removing means for blowing air or steam is provided on a nozzle. (2) The dust removing means is an air or steam pipe,
A plurality of jet nozzles provided in the pipe and the air or steam pipe are rotated about a pipe central axis, or moved vertically with respect to the ammonia injection nozzle;
The ammonia injecting device of the denitration device according to (1) above, which has a means for changing the ejection direction of air or steam.
【０００７】本発明においては、アンモニア注入管の注
入ノズルの側面に、空気または蒸気を噴射するダスト除
去手段を設けたことにより、アンモニア注入ノズルへの
ダストの付着、堆積を未然に防止できる。また、たとえ
ダストが付着した場合でも、運転中および／または運転
停止時に空気または蒸気を吹き付けることにより、効率
よくこれを除去することができる。In the present invention, the dust removing means for injecting air or steam is provided on the side surface of the injection nozzle of the ammonia injection pipe, whereby the adhesion and accumulation of dust on the ammonia injection nozzle can be prevented. Even if dust adheres, it can be removed efficiently by blowing air or steam during operation and / or when operation is stopped.
【０００８】[0008]
【発明の実施の形態】次に、本発明を実施例によりさら
に詳細に説明する。図１〜３は、本発明の一実施例を示
す脱硝装置のアンモニア注入装置を示す説明図であり、
図１は、アンモニア注入部を示す図、図２は、アンモニ
ア注入ノズルと空気または蒸気配管（以下、ダスト除去
装置ともいう）の噴出ノズルとの関係を示す正面図、図
３はその側面図である。Next, the present invention will be described in more detail by way of examples. 1 to 3 are explanatory views showing an ammonia injection device of a denitration device showing one embodiment of the present invention,
FIG. 1 is a diagram showing an ammonia injecting section, FIG. 2 is a front view showing a relationship between an ammonia injecting nozzle and an air or steam pipe (hereinafter also referred to as a dust removing device) ejecting nozzle, and FIG. 3 is a side view thereof. is there.
【０００９】図において、排ガス煙道としての脱硝装置
入口ダクト１内に、アンモニア注入ノズル６に向かって
空気または蒸気５を吹き付けるダスト除去手段としての
空気または蒸気配管４が設けられている。すなわち、脱
硝装置入口ダクト１に、ノズル取り付け部が２本に分岐
した構成のアンモニア注入管２がダクト断面全域をカバ
ーするように複数配置されており、アンモニア注入管２
には、例えば均等に、複数のアンモニア注入ノズル６が
設けられている。分岐したアンモニア注入管２を構成す
る２本の分岐配管の中央部には、それぞれアンモニア注
入ノズル６に対応する位置に空気または蒸気を噴射する
噴出ノズル７を備えた空気または蒸気配管４が設けられ
ており、この空気または蒸気配管４は、例えばその長さ
方向に沿った中心軸を中心として回転可能となってい
る。In the figure, an air or steam pipe 4 as dust removing means for blowing air or steam 5 toward an ammonia injection nozzle 6 is provided in a denitration device inlet duct 1 as an exhaust gas flue. That is, a plurality of ammonia injection pipes 2 each having a nozzle attachment portion branched into two are arranged in the denitration device inlet duct 1 so as to cover the entire duct cross section.
For example, a plurality of ammonia injection nozzles 6 are evenly provided. An air or steam pipe 4 having a jet nozzle 7 for injecting air or steam is provided at a position corresponding to the ammonia injection nozzle 6 at the center of each of the two branched pipes constituting the branched ammonia injection pipe 2. The air or steam pipe 4 is rotatable, for example, about a central axis along the length direction.
【００１０】このような構成において、アンモニア注入
管２を流通してきたアンモニア３はＮＨ3 注入ノズル６
から煙道内に注入され、図示省略した触媒反応器の脱硝
触媒の存在下で排ガス中のＮＯｘと接触してＮＯｘをＮ
2 に還元、除去する。このとき、注入されたアンモニア
の一部と排ガス中のＳＯｘとが反応して酸性硫安とな
り、該酸性硫安または排ガス中のダストがＮＨ3 注入ノ
ズル６近傍に付着、堆積しようとするが、ダスト除去装
置である空気または蒸気配管４の噴出ノズル７からＮＨ
3 注入ノズル６に向かって空気または蒸気５が、間欠的
または連続的に噴出されるので、酸性硫安およびダスト
はＮＨ3 注入管に堆積することなく、飛灰として飛散す
る。In such a structure, the ammonia 3 flowing through the ammonia injection pipe 2 receives the NH 3 injection nozzle 6
Is injected into the flue from the exhaust gas and comes into contact with NOx in the exhaust gas in the presence of a denitration catalyst (not shown) in a catalytic reactor to remove NOx
Reduce to 2 and remove. At this time, a part of the injected ammonia reacts with SOx in the exhaust gas to form acidic ammonium sulfate, and the acidic ammonium sulfate or the dust in the exhaust gas tries to adhere to and accumulate in the vicinity of the NH 3 injection nozzle 6, but removes the dust. NH from the jet nozzle 7 of the air or steam pipe 4 which is the device
The air or steam 5 is ejected intermittently or continuously toward the 3 injection nozzle 6, so that the ammonium acid sulfate and dust are scattered as fly ash without accumulating in the NH 3 injection pipe.
【００１１】本実施例によれば、アンモニア注入装置
に、ＮＨ3 注入ノズル６に向かって空気または蒸気５を
噴射するダスト除去装置を設けたことにより、注入ノズ
ルに連続的または間欠的に空気または蒸気を吹き付けて
ダストの付着を防止することができる。また、もしダス
ト等が付着してもその堆積、成長を防止することができ
る。従って、従来必要であったプラント停止時における
人手による清掃作業が不要となる。According to this embodiment, the ammonia injecting device is provided with the dust removing device for injecting the air or the vapor 5 toward the NH 3 injecting nozzle 6, so that the injecting nozzle is continuously or intermittently supplied with the air or the air. It is possible to prevent dust from adhering by spraying steam. Further, even if dust or the like adheres, it is possible to prevent the accumulation and growth. Therefore, the manual cleaning work when the plant is stopped, which is conventionally required, becomes unnecessary.
【００１２】本実施例において、空気または蒸気５をＮ
Ｈ3 注入ノズル６に吹き付ける空気配管４を、上下方向
に移動する可動式とすることもできる。また、空気また
は蒸気の噴出操作は自動または手動のいずれでも行うこ
とができる。In this embodiment, air or steam 5 is replaced with N
The air pipe 4 blown onto the H 3 injection nozzle 6 may be movable so as to move in the vertical direction. Further, the jetting operation of air or steam can be performed either automatically or manually.
【００１３】[0013]
【発明の効果】本願の請求項１記載の発明によれば、ア
ンモニア注入ノズルに空気または蒸気を吹き付けるダス
ト除去手段を設けたことにより、ＮＨ3 注入ノズルへの
ダストの付着を防止できるとともに、付着したダストを
除去して飛灰とすることができるので、ＮＨ3 注入ノズ
ルの目詰まり、またはＮＨ3 の噴出方向が変化するのを
防止することができる。従って、ＮＨ3 注入ノズルから
のＮＨ3 噴出量、ならびに脱硝装置出口のＮＯｘおよび
ＮＨ3 の濃度分布が安定し、濃度分布の変化に伴う経時
変化がなくなるので、脱硝装置をはじめプラント全体の
運転管理上の信頼性が向上する。According to the first aspect of the present invention, by providing the ammonia injection nozzle with the dust removing means for blowing air or vapor, the adhesion of dust to the NH 3 injection nozzle can be prevented and Since the generated dust can be removed to produce fly ash, it is possible to prevent clogging of the NH 3 injection nozzle or change in the NH 3 ejection direction. Therefore, the amount of NH 3 ejected from the NH 3 injection nozzle and the NOx and NH 3 concentration distributions at the outlet of the denitration device are stable, and there is no change over time due to changes in the concentration distribution. Improves reliability.
【００１４】本願の請求項２記載の発明によれば、ダス
ト除去手段を、空気または蒸気配管と該配管に設けられ
た複数の噴出ノズルとで構成し、空気または蒸気配管の
可変手段を設けたことにより、上記効果に加え、空気ま
たは蒸気の噴射領域が拡がるので、ダスト付着防止効果
が向上するとともに、空気または蒸気を節約することが
できる。According to the second aspect of the present invention, the dust removing means is composed of the air or steam pipe and the plurality of jet nozzles provided in the pipe, and the air or steam pipe varying means is provided. As a result, in addition to the above effects, the injection area of air or steam is expanded, so that the dust adhesion prevention effect is improved and air or steam can be saved.
【図１】本発明の一実施例である脱硝装置のアンモニア
注入装置の説明図。FIG. 1 is an explanatory diagram of an ammonia injection device of a denitration device that is an embodiment of the present invention.
【図２】ＮＨ3 注入ノズルとダスト除去装置の噴出ノズ
ルとの関係を示す正面図。FIG. 2 is a front view showing a relationship between an NH 3 injection nozzle and an ejection nozzle of a dust removing device.
【図３】ＮＨ3 注入ノズルとダスト除去装置の噴出ノズ
ルとの関係を示す側面図。FIG. 3 is a side view showing the relationship between the NH 3 injection nozzle and the ejection nozzle of the dust removing device.
【図４】従来技術を示す説明図。FIG. 4 is an explanatory view showing a conventional technique.
【図５】ＮＨ3 注入ノズルにダストが付着した状況を示
す図。FIG. 5 is a diagram showing a situation where dust adheres to an NH 3 injection nozzle.
【図６】高ダスト脱硝方式の排煙処理システムの系統
図。FIG. 6 is a system diagram of a high-dust denitration type flue gas treatment system.
１…脱硝装置入口ダクト、２…ＮＨ3 注入管、３…ＮＨ
3 ガス、４…空気または蒸気配管（ダスト除去装置）、
５…空気または蒸気、６…ＮＨ3 注入ノズル、７…噴出
ノズル、８…付着堆積ダスト、９…ボイラ、１０…脱硝
装置反応器、１１…空気予熱器、１２…集塵器、１３…
脱硫装置、１４…煙突。1 ... Denitration device inlet duct, 2 ... NH 3 injection pipe, 3 ... NH
3 gas, 4 ... Air or steam piping (dust removal device),
5 ... air or steam, 6 ... NH 3 injection nozzles, 7 ... jet nozzle, 8 ... deposition deposited dust, 9 ... boiler, 10 ... denitrator reactor, 11 ... air preheater, 12 ... dust collector, 13 ...
Desulfurizer, 14 ... Chimney.
Claims (2)
らアンモニアを噴出して排ガス中の窒素酸化物と接触さ
せて該窒素酸化物を還元、除去する排ガス脱硝装置のア
ンモニア注入装置において、前記アンモニアの注入ノズ
ルに空気または蒸気を吹き付けるダスト除去手段を設け
たことを特徴とする排ガス脱硝装置のアンモニア注入装
置。1. An ammonia injecting device for an exhaust gas denitration device for ejecting ammonia from an injection nozzle provided in an exhaust gas flue to bring it into contact with nitrogen oxides in the exhaust gas to reduce and remove the nitrogen oxides. An ammonia injection device for an exhaust gas denitration device, characterized in that dust injection means for blowing air or steam is provided to the injection nozzle of the above.
配管と、該配管に設けられた複数の噴出ノズルと、前記
空気または蒸気配管を配管中心軸を中心として回転させ
るか、または前記アンモニア注入ノズルに対して上下動
させる、空気または蒸気の噴出方向変更手段を有するこ
とを特徴とする請求項１記載の排ガス脱硝装置のアンモ
ニア注入装置。2. The dust removing means rotates an air or steam pipe, a plurality of jet nozzles provided in the pipe, the air or steam pipe around a pipe central axis, or the ammonia injection nozzle. The ammonia injection device for an exhaust gas denitration device according to claim 1, further comprising an air or steam ejection direction changing means that moves up and down with respect to the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13539196A JP3735409B2 (en) | 1996-05-29 | 1996-05-29 | Ammonia injection device for exhaust gas denitration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13539196A JP3735409B2 (en) | 1996-05-29 | 1996-05-29 | Ammonia injection device for exhaust gas denitration equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09313891A true JPH09313891A (en) | 1997-12-09 |
| JP3735409B2 JP3735409B2 (en) | 2006-01-18 |
Family
ID=15150621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13539196A Expired - Fee Related JP3735409B2 (en) | 1996-05-29 | 1996-05-29 | Ammonia injection device for exhaust gas denitration equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3735409B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007116602A1 (en) * | 2006-03-30 | 2007-10-18 | Babcock-Hitachi Kabushiki Kaisha | Flue gas denitration apparatus |
| KR101158898B1 (en) * | 2012-02-22 | 2012-06-25 | (주)윈텍글로비스 | Water treatment apparatus and water treatment method |
| CN103506005A (en) * | 2013-10-11 | 2014-01-15 | 东南大学 | SCR denitration device and denitration method applicable to middle and small-size boilers |
| US9970390B2 (en) | 2016-04-25 | 2018-05-15 | Ford Global Technologies, Llc | Systems and methods for removing coking deposits in a fuel injection system |
| CN113289491A (en) * | 2021-05-21 | 2021-08-24 | 华能重庆珞璜发电有限责任公司 | Denitration AIG spouts ammonia grid nozzle and prevents deposition, jam device |
| CN114739002A (en) * | 2022-03-16 | 2022-07-12 | 华能伊敏煤电有限责任公司 | Denitration ammonia-spraying air preheating device |
| CN116571082A (en) * | 2023-05-12 | 2023-08-11 | 南京昱华智能科技有限公司 | Ammonia injection optimization and air preheater intelligent soot blowing method and system for SCR mapping relation |
| CN116754447A (en) * | 2023-08-10 | 2023-09-15 | 苏州西热节能环保技术有限公司 | Air preheater heat exchange ABS deposition simulation system and method along Cheng Yanqi |
-
1996
- 1996-05-29 JP JP13539196A patent/JP3735409B2/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007116602A1 (en) * | 2006-03-30 | 2007-10-18 | Babcock-Hitachi Kabushiki Kaisha | Flue gas denitration apparatus |
| JP2007268355A (en) * | 2006-03-30 | 2007-10-18 | Babcock Hitachi Kk | Exhaust gas denitrizer |
| KR101158898B1 (en) * | 2012-02-22 | 2012-06-25 | (주)윈텍글로비스 | Water treatment apparatus and water treatment method |
| WO2013125744A1 (en) * | 2012-02-22 | 2013-08-29 | (주) 윈텍글로비스 | Water treatment apparatus and water treatment method |
| CN103506005A (en) * | 2013-10-11 | 2014-01-15 | 东南大学 | SCR denitration device and denitration method applicable to middle and small-size boilers |
| US9970390B2 (en) | 2016-04-25 | 2018-05-15 | Ford Global Technologies, Llc | Systems and methods for removing coking deposits in a fuel injection system |
| CN113289491A (en) * | 2021-05-21 | 2021-08-24 | 华能重庆珞璜发电有限责任公司 | Denitration AIG spouts ammonia grid nozzle and prevents deposition, jam device |
| CN114739002A (en) * | 2022-03-16 | 2022-07-12 | 华能伊敏煤电有限责任公司 | Denitration ammonia-spraying air preheating device |
| CN114739002B (en) * | 2022-03-16 | 2023-12-15 | 华能伊敏煤电有限责任公司 | Denitration ammonia injection air preheating device |
| CN116571082A (en) * | 2023-05-12 | 2023-08-11 | 南京昱华智能科技有限公司 | Ammonia injection optimization and air preheater intelligent soot blowing method and system for SCR mapping relation |
| CN116571082B (en) * | 2023-05-12 | 2024-03-08 | 南京昱华智能科技有限公司 | Ammonia injection optimization and air preheater intelligent soot blowing method and system for SCR mapping relation |
| CN116754447A (en) * | 2023-08-10 | 2023-09-15 | 苏州西热节能环保技术有限公司 | Air preheater heat exchange ABS deposition simulation system and method along Cheng Yanqi |
| CN116754447B (en) * | 2023-08-10 | 2023-11-03 | 苏州西热节能环保技术有限公司 | Air preheater heat exchange ABS deposition simulation system and method along Cheng Yanqi |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3735409B2 (en) | 2006-01-18 |
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