JPS6198523U - - Google Patents
Info
- Publication number
- JPS6198523U JPS6198523U JP18081684U JP18081684U JPS6198523U JP S6198523 U JPS6198523 U JP S6198523U JP 18081684 U JP18081684 U JP 18081684U JP 18081684 U JP18081684 U JP 18081684U JP S6198523 U JPS6198523 U JP S6198523U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- denitrification
- startup
- denitrification device
- combustion
- 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
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 229910021529 ammonia Inorganic materials 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims 3
- 238000010531 catalytic reduction reaction Methods 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 238000006722 reduction reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
Description
第１図は本考案の一例であるＮＯｘ低減装置の
構成を示す説明図、第２図ａ，ｂは本考案の他の
例であるＮＯｘ低減装置の構成を示す説明図、第
３図は従来の脱硝装置の構成を示す説明図である
。
１…ボイラ、２…主ダクト、３…高温用集じん
装置、４…アンモニア注入装置、５…脱硝装置、
６…バイパスダクト、７…空気予熱器、８，９…
主ダクトダンパ、１０，１１…バイパスダンパ、
１２…排ガス加熱装置、１３…分割ダクト、１４
…アンモニア注入装置、１５…起動用脱硝装置、
１６…主ダクトダンパ、１７，１８…バイパスダ
ンパ、１９…分割ダクトダンパ、２０…排ガス加
熱ダクト、２１…加熱ダクトダンパ、２２…仕切
板。
FIG. 1 is an explanatory diagram showing the configuration of a NOx reduction device which is an example of the present invention, FIGS. 2a and b are explanatory diagrams showing the configuration of a NOx reduction device which is another example of the present invention, and FIG. FIG. 2 is an explanatory diagram showing the configuration of a denitrification device. 1...Boiler, 2...Main duct, 3...High temperature dust collector, 4...Ammonia injection device, 5...Denitration device,
6... Bypass duct, 7... Air preheater, 8, 9...
Main duct damper, 10, 11... bypass damper,
12...Exhaust gas heating device, 13...Divided duct, 14
...Ammonia injection device, 15...Start-up denitrification device,
16... Main duct damper, 17, 18... Bypass damper, 19... Division duct damper, 20... Exhaust gas heating duct, 21... Heating duct damper, 22... Partition plate.
Claims (1)
て接触還元法によつてＮＯｘを低減する脱硝装置
において、上記脱硝装置を複数に分割して、燃焼
装置起動時の排ガスを脱硝する容量に適合した起
動用脱硝装置を構成するか、もしくは該起動用脱
硝装置を、上記脱硝装置とは別個に独立して構成
して上記脱硝装置のバイパス回路上に設け、そし
て上記の起動用脱硝装置には、該起動用脱硝装置
の入口排ガス温度を所定温度以上に加熱制御する
排ガス加熱装置を設けることを特徴とする燃焼装
置起動時における排ガス中のＮＯｘ低減装置。 ２ 上記の排ガス加熱装置は、起動用脱硝装置の
入口の排ガス温度を３００Ｃ°以上に加熱制御す
る装置であることを特徴とする実用新案登録請求
の範囲第１項記載の燃焼装置起動時における排ガ
ス中のＮＯｘ低減装置。[Scope of Claim for Utility Model Registration] 1. In a denitration device that adds ammonia to the exhaust gas of a combustion device to reduce NOx by catalytic reduction method, the denitration device is divided into a plurality of parts, and when the combustion device starts up, A start-up denitrification device suitable for the capacity to denitrify exhaust gas is configured, or the start-up denitrification device is configured separately from the denitrification device and installed on a bypass circuit of the denitrification device, and A device for reducing NOx in exhaust gas at the time of startup of a combustion device, characterized in that the startup denitrification device is provided with an exhaust gas heating device that heats and controls the inlet exhaust gas temperature of the startup denitrification device to a predetermined temperature or higher. 2. The above-mentioned exhaust gas heating device is a device that heats and controls the temperature of the exhaust gas at the inlet of the startup denitrification device to 300° C. or higher. NOx reduction device inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18081684U JPS6198523U (en) | 1984-11-30 | 1984-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18081684U JPS6198523U (en) | 1984-11-30 | 1984-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6198523U true JPS6198523U (en) | 1986-06-24 |
Family
ID=30738372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18081684U Pending JPS6198523U (en) | 1984-11-30 | 1984-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6198523U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0417820U (en) * | 1990-06-04 | 1992-02-14 | ||
| WO2018207332A1 (en) * | 2017-05-11 | 2018-11-15 | 三菱日立パワーシステムズ株式会社 | Method for operating flue gas purification system |
-
1984
- 1984-11-30 JP JP18081684U patent/JPS6198523U/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0417820U (en) * | 1990-06-04 | 1992-02-14 | ||
| WO2018207332A1 (en) * | 2017-05-11 | 2018-11-15 | 三菱日立パワーシステムズ株式会社 | Method for operating flue gas purification system |
| US11441774B2 (en) | 2017-05-11 | 2022-09-13 | Mitsubishi Power, Ltd. | Method for operating flue gas purification system |
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