JPH021222U - - Google Patents
Info
- Publication number
- JPH021222U JPH021222U JP7642288U JP7642288U JPH021222U JP H021222 U JPH021222 U JP H021222U JP 7642288 U JP7642288 U JP 7642288U JP 7642288 U JP7642288 U JP 7642288U JP H021222 U JPH021222 U JP H021222U
- Authority
- JP
- Japan
- Prior art keywords
- oxidation tower
- flue gas
- output
- controller
- buffer
- 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
- 230000003647 oxidation Effects 0.000 claims description 8
- 238000007254 oxidation reaction Methods 0.000 claims description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 6
- 239000003546 flue gas Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000006477 desulfuration reaction Methods 0.000 claims description 3
- 230000023556 desulfurization Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims 2
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 claims 2
- 229910052815 sulfur oxide Inorganic materials 0.000 claims 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims 1
- 239000000920 calcium hydroxide Substances 0.000 claims 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims 1
- 238000000605 extraction Methods 0.000 claims 1
- 229910052602 gypsum Inorganic materials 0.000 claims 1
- 239000010440 gypsum Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Description
第１図は本考案の一実施例の例示図、第２図は
本考案における関数発生器の関数の一例を示す図
表、第３図は従来法による排煙脱硫装置の一例の
例示図である。
１……排ガス入口ダクト、２……メイクアツプ
水、３……洗浄装置、４……循環配管、５……酸
化装置（又は酸化塔）、７……空気又は酸素を含
むガス配管、１１，１６……レベル調節計、１２
，１７，２０，２３……調節弁、１９……流量調
節計、１８……循環ポンプ、１３……吸収剤供給
ライン、２１……硫酸供給ライン、２２……PH調
節計、２４……関数発生器、２５……酸化塔内ス
ラリ温度検出器、２６……緩衝器、２７……変化
率制限器。
Fig. 1 is an illustrative diagram of an embodiment of the present invention, Fig. 2 is a diagram illustrating an example of a function of a function generator in the present invention, and Fig. 3 is an illustrative diagram of an example of a conventional flue gas desulfurization device. . 1...Exhaust gas inlet duct, 2...Make-up water, 3...Cleaning device, 4...Circulation piping, 5...Oxidizer (or oxidation tower), 7...Gas piping containing air or oxygen, 11, 16 ...Level controller, 12
, 17, 20, 23...Control valve, 19...Flow rate controller, 18...Circulation pump, 13...Absorbent supply line, 21...Sulfuric acid supply line, 22...PH controller, 24...Function Generator, 25...Slurry temperature detector in the oxidation tower, 26...Buffer, 27... Rate of change limiter.
Claims (1)
を含むスラリを用いて排煙を洗浄し、排煙中の硫
黄酸化物を除去する湿式排煙脱硫装置の洗浄装置
から抜き出された洗浄液を酸化塔に供給し、酸素
を含むガスを供給して排煙から洗浄液に吸収され
た硫黄酸化物を酸化する酸化塔の制御装置におい
て、前記酸化塔内スラリの温度を測定する温度検
出器と、前記測定値を入力とする関数発生器と、
前記関数発生器の出力を入力とする緩衝器と、前
記酸化塔の液レベルを検出するレベル計と、前記
酸化塔からの液抜き出し配管に設置した調節弁と
、前記緩衝器の出力値を設定値とし、前記レベル
計の測定値を制御量として訂正信号を出力する調
節計と、前記調節計の出力を入力とし前記調節弁
の弁開度を出力として与える変化率制限器を具備
してなることを特徴とする湿式石灰石こう法排煙
脱硫装置における酸化塔制御装置。 Flue gas is cleaned using a slurry containing calcium hydroxide and/or calcium carbonate, and the cleaning liquid extracted from the cleaning device of the wet flue gas desulfurization equipment is supplied to the oxidation tower to remove sulfur oxides from the flue gas. , in a control device for an oxidation tower that supplies a gas containing oxygen to oxidize sulfur oxides absorbed by a cleaning liquid from flue gas, a temperature detector that measures the temperature of the slurry in the oxidation tower, and inputs the measured value. a function generator,
A buffer that inputs the output of the function generator, a level meter that detects the liquid level in the oxidation tower, a control valve installed in a liquid extraction pipe from the oxidation tower, and an output value of the buffer is set. a controller that outputs a correction signal using the measured value of the level meter as a control variable; and a rate of change limiter that receives the output of the controller as an input and provides the valve opening of the control valve as an output. An oxidation tower control device in a wet lime-gypsum flue gas desulfurization device characterized by the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7642288U JPH021222U (en) | 1988-06-10 | 1988-06-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7642288U JPH021222U (en) | 1988-06-10 | 1988-06-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH021222U true JPH021222U (en) | 1990-01-08 |
Family
ID=31301447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7642288U Pending JPH021222U (en) | 1988-06-10 | 1988-06-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH021222U (en) |
-
1988
- 1988-06-10 JP JP7642288U patent/JPH021222U/ja active Pending
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