J. Inst. Electrostat. Jpn.
, 30, 5 (2006) 230 235

ࡄ࡞ࠬ⩄㔚࿕ቯ㔚ᭂㇱࠍ⚵วߖߚ⒖േ㔚ᭂဳ㔚᳇㓸Ⴒⵝ⟎ਃ ဈ ବ ᣿㧖,1㧘ᄢ ᶆᔘ㧖㧘ጊ ፒ⒤㧖

㧔2006 ᐕ 5 ᦬ 19 ᣣฃઃ; 2006 ᐕ 9 ᦬ 12 ᣣฃℂ㧕Moving Electrode Type Electrostatic Precipitator Having a Pulse Charging
Fixed-Electrode Section
Toshiaki MISAKA*,1, Tadashi OURA* and Minoru YAMAZAKI*(Received May 19, 2006; Accepted September 12, 2006)

The electrostatic precipitator composed of a fixed electrode section with pulse energization, followed by the moving
electrode section to cope with handling an extremely high resistive dust. A pulse energization for the fix electrode section
was studied for the purpose of improving the collection efficiency. The relationship between pulse waveforms and theircollection efficiencies has been experimentally investigated for a cylindrical electrostatic precipitator. For handling thehigh resistive dust greater than 1012ǡ㨯cm, the optimum pulse waveforms superimposed of DC voltage and DC current
were revealed. The experimental results for a coal fired boiler application indicated that the optimum DC current, thepulse voltage, and pulse frequency exist depending on dust resistivity. Suitable choice of pulse waveform could lead toachieve a significantly higher collection efficiency than that of the conventional DC energization.
1.

ߪߓ߼ߦࠬ࠻Ớᐲ߽㜞޿㧚ߘߎߢ㧘౉ญ஥ߩ㓸Ⴒቶࠍᓥ᧪ߩ࿕ቯ㔚ᭂ㔚᳇㓸Ⴒⵝ⟎ߪ㓸Ⴒᕈ⢻߇࠳ࠬ࠻㔚᳇ᛶ᛫₸ߩᓇ㗀ࠍฃᣇᑼ㧘಴ญ஥ߩ㓸Ⴒቶࠍ⒖േ㔚ᭂᣇᑼߣߒߡ㧘࿕ቯ㔚ᭂㇱߣߌ㧘․ߦ㜞ᛶ᛫࠳ࠬ࠻ߢߪ㓸Ⴒᕈ⢻߇⪺ߒߊૐਅߔࠆߚ߼㧘⒖േ㔚ᭂㇱࠍ⚵วߖߚ⒖േ㔚ᭂဳ㔚᳇㓸Ⴒⵝ⟎ߣߒߡ޿ࠆ

1㧕㜞ᛶ᛫࠳ࠬ࠻ߩ㓸Ⴒᕈ⢻ߩะ਄ߪ㊀ⷐߥ⺖㗴ߣߥߞߡ޿ࠆ 㧚଀߇ᄙ޿㧚ߎߩߣ߈㧘࿕ቯ㔚ᭂㇱߩ㜞ᛶ᛫࠳ࠬ࠻ߦࠃࠆ㓸Ⴒ㜞ᛶ᛫࠳ࠬ࠻ߩ㓸Ⴒᕈ⢻ࠍะ਄ߔࠆᣇᴺߣߒߡ㧘㓸Ⴒ᧼ࠍ⍴ᕈ⢻ߩૐਅߦኻߒߡߪ᭵ᛂᒝൻߣ㓸Ⴒ㕙Ⓧࠍᄢ߈ߊ⸳⸘ߔ

ౠ⁁ߦಽഀߒߚ㓸Ⴒᭂࠛ࡟ࡔࡦ࠻ࠍ࠴ࠚ࡯ࡦߢㅪ⚿ߒߡ⒖ࠆߎߣߢኻᔕߒߡ޿ߚ㧚േน⢻ߣߒ㧘㓸Ⴒᭂࠛ࡟ࡔࡦ࠻ߦ᝝㓸ߒߚ࠳ࠬ࠻ࠍ࿁ォࡉ࡜৻ᣇ㧘㜞ᛶ᛫࠳ࠬ࠻㓸Ⴒᛛⴚߣߒߡߪࡄ࡞ࠬ⩄㔚ᣇᑼ 6㧕߇ࠪߢㅪ⛯⊛ߦ㒰෰ߒߡ㓸Ⴒ᧼ࠍᷡᵺߦ଻ߟ⒖േ㔚ᭂᣇᑼߩ޽ࠅ㧘ᦨㄭߩ㜞㔚࿶ࡄ࡞ࠬ⊒↢ᛛⴚߩㅴᱠߦߣ߽ߥߞߡ࿖ౝ㔚᳇㓸Ⴒⵝ⟎ࠍ⠨᩺ߒߡታ↪ൻߒߡ޿ࠆ㧚⒖േ㔚ᭂᣇᑼߦࠃᄖߢታ↪ൻ߇ᆎ߹ߞߚ 7-10㧕㧚ߎߩࡄ࡞ࠬ⩄㔚ࠍ࿕ቯ㔚ᭂㇱߦࠆ㔚᳇㓸Ⴒⵝ⟎ߩ࠳ࠬ࠻ጀߩઃ⌕ജߣᛄ⪭ߒലᨐ㧘ਥⷐⒿേㆡ↪ߒߡ⒖േ㔚ᭂㇱߣ⚵วߖࠆߣ㔚᳇㓸Ⴒⵝ⟎ߪߐࠄߦᐢ

2-4㧕▸࿐ߩ㜞ᛶ᛫࠳ࠬ࠻ߦኻᔕߢ߈ࠆߣ⠨߃ߚ㧚ࡄ࡞ࠬ⩄㔚ߪኻ㜞ᛶ᛫࠳ࠬ࠻ߪ㓸Ⴒ᧼ߦ᝝㓸ߢ߈ࠆ࠳ࠬ࠻ጀෘߐߦ㒢⇇߇⽎ߣߥࠆ࠳ࠬ࠻ߩᕈ⁁ߦࠃߞߡᕈ⢻ᡷༀലᨐߦᏅ߇޽ࠅ⹏ㇱຠߩା㗬ᕈะ਄㧘ㆇォታ❣ߥߤߦߟ޿ߡߪᣢߦႎ๔ߒߚ

㧚5㧕

޽ࠅ 㧘⒖േ㔚ᭂᣇᑼߩ㔚᳇㓸Ⴒⵝ⟎ߪ౉ญ࠳ࠬ࠻Ớᐲࠍ೙ଔ߇ቯ߹ߞߡ޿ߥ޿ 11㧕㧚㔚᳇㓸Ⴒⵝ⟎ߩ࿕ቯ㔚ᭂㇱࠍࡄ࡞ࠬ㒢ߔࠆᔅⷐ߇޽ࠆ㧚⍹὇Ά὾ࡏࠗ࡜ߢ⊒↢ߔࠆࡈ࡜ࠗࠕ࠶ࠪ⩄㔚ߒߡ㓸Ⴒᕈ⢻ࠍะ਄ߔࠆߦߪࡄ࡞ࠬᵄᒻ߿࠳ࠬ࠻㔚᳇ࡘߪ࠳ࠬ࠻㔚᳇ᛶ᛫₸߇㜞ߊ㧘ߐࠄߦ㔚᳇㓸Ⴒⵝ⟎ߩ౉ญ࠳ᛶ᛫₸ߩㆡ↪▸࿐ࠍ᣿⏕ߦߔࠆᔅⷐ߇޽ࠆ㧚ߘߎߢၮ␆ታ㛎ߦࠃߞߡࡄ࡞ࠬ⩄㔚ᣇᑼߩ⻉᧦ઙࠍ᣿⏕ߦߔࠆߣߣ߽ߦ㧘⍹ࠠ࡯ࡢ࡯࠼㧦㔚᳇㓸Ⴒⵝ⟎㧘㜞ᛶ᛫࠳ࠬ࠻㧘⒖േ㔚ᭂᣇᑼ㧘ࡄ࡞ࠬ⩄㔚㧘⩄㔚ᵄᒻ㧘㓸Ⴒᕈ⢻* 㧔ᩣ㧕ᣣ┙ࡊ࡜ࡦ࠻࠹ࠢࡁࡠࠫ࡯㧔170-8466 ᧲੩ㇺ⼾ፉ඙ർᄢႦ 1-13-2㧕
Hitachi Plant Technologies, Ltd. 1-13-2 Kita-Otsuka, Toshima-ku, Tokyo, 170-8466 Japan1
toshiaki.misaka.sn@hitachi-pt.com

὇Ά὾ࡏࠗ࡜ឃࠟࠬߢࡄ࡞ࠬ⩄㔚࿕ቯ㔚ᭂㇱߣ⒖േ㔚ᭂㇱࠍ⚵วߖߚ㔚᳇㓸Ⴒⵝ⟎ߩ⃻࿾ታ㛎ࠍⴕߞߚ㧚ᧄ⺰ᢥߢߪߎࠇࠄߩታ㛎⚿ᨐߦߟ޿ߡႎ๔ߔࠆ㧚

231 (39)Tubular typeelectrostatic precipitator
SCA=33.7s/m
Coupling capacitor

Dust resistivity probe
High resistivity meter
Fabricfilter

DCPower
supplymA

1,000Nozzle
Center electrode
Cylindricalelectrode

Inlet dust monitor
Gas heater-60kV/-10mA
Vp=0㨪-50kV
Pw=30㨪500Ǵs
Pf=50㨪600pps

To highresistivity meter
FanSample dust feeder
Ci=1㨪10g/m3N2.

ࡄ࡞ࠬ⩄㔚ᵄᒻߣ㓸Ⴒᕈ⢻

2.1

ၮ␆ታ㛎ⵝ⟎߅ࠃ߮ታ㛎ᣇᴺ

Apply voltage (kV)

࿑ 1 ࡄ࡞ࠬ⩄㔚㓸Ⴒታ㛎ⵝ⟎
Fig.1 Experimental setup for the pulse-charging electrostatic precipitator.

ࡄ࡞ࠬ⩄㔚ᣇᑼߦ߅ߌࠆ⩄㔚ᵄᒻ߿࠳ࠬ࠻㔚᳇ᛶ᛫₸ߣ㓸Ⴒᕈ⢻ߩ㑐ଥࠍ᣿ࠄ߆ߦߔࠆߚ߼ߦ㧘ࡄ࡞ࠬ㔚࿶㧘ࡄ࡞ࠬ᏷㧘ࡄ࡞ࠬ㗫ᐲࠍนᄌߢ߈ࠆࡄ࡞ࠬ⩄㔚ⵝ⟎ࠍ⹜૞ߒ

12㧕

㧘౞

To vacuum pump

Water injector

࿑ 2 ࠳ࠬ࠻ᛶ᛫᷹ቯ↪ࡊࡠ࡯ࡉFig.2 The probe for dust resistivity
measurement.

-80-60-40-2-20-1

001╴ဳ㔚᳇㓸Ⴒⵝ⟎ࠍ↪޿ߡ࠳ࠬ࠻㔚᳇ᛶ᛫₸ࠍછᗧߦ⺞▵0ߒߥ߇ࠄ㓸Ⴒታ㛎ࠍⴕߞߚ㧚࿑ 1 ߦታ㛎ⵝ⟎ߩ᭎ⷐࠍ␜ߔ㧚ㇱ 1m ߪઁߩㇱಽߣ㔚᳇⊛ߦ⛘✼ߒߡ㧘න૏㐳ߐᒰࠅߩ᡼㔚㔚ᵹࠍ᷹ቯߢ߈ࠆࠃ߁ߦߒߚ㧚ߎߩ౞╴ဳ㔚᳇㓸Ⴒⵝ⟎ߪ 2ၮࠍ⋥೉ߦធ⛯ߒߡ޽ࠅ㧘ಣℂࠟࠬ㊂߇ 250m3/h㧘㓸Ⴒ㕙Ⓧ
߇ 2.53m 2 ߢ޽ࠆ㧚

40
60
Time (Ǵs)

801002࿑ 3 ࡄ࡞ࠬ㔚࿶㨯㔚ᵹᵄᒻFig.3 Pulse voltage and current waveforms.

ታ㛎ߦ↪޿ߚ౞╴ဳ㔚᳇㓸Ⴒⵝ⟎ߪౝᓘ 310mm㧘㐳ߐ
1.3m ߢਛᄩߦ᡼㔚✢ࠍ 1 ᧄขࠅઃߌߡ޽ࠆ㧚౞╴㔚ᭂߩਛᄩ

20Current (A)PulsePowersupply1,300

Outlet dust monitorࠬᵄᒻࠍ⺞ᢛߢ߈ࠆ㧚ߎߩࡄ࡞ࠬ⩄㔚ⵝ⟎ߩ಴ജᵄᒻࠍ࿑ 3ߦ␜ߔ㧚⋥ᵹ⩄㔚ⵝ⟎ߪ໡↪๟ᵄᢙߩ੤ᵹ㜞㔚࿶ࠍోᵄᢛᵹߒߚ⋥ᵹ⩄㔚ߣ㧘ߎߩ⋥ᵹ⩄㔚ࠍ㔚Ḯ๟ᦼߦหᦼߒߡ⩄㔚ߣભᱛࠍ➅㄰ߔ㑆ᰳ⩄㔚 14㧕ߦಾᦧ߃ࠆߎߣ߇ߢ߈ࠆ㧚ታ㛎ߪ౞╴ဳ㔚᳇㓸Ⴒⵝ⟎ౝߩࠟࠬㅦᐲࠍ 1m/s㧘᷷ࠟࠬᐲ⴫ 1 ࠨࡦࡊ࡞࠳ࠬ࠻ߩ‛ᕈ
Table 1 Characteristics of sampled dust
SampleDust resistivity
Mean diameter
Fly ash(ǡ㨯cm)(Ǵ㨙)
A
3.81010㨪1.21011
16.0
B
9.51011㨪7.01013
16.0
C
9.81012㨪1.11014
12.3120͠㧘౉ญ࠳ࠬ࠻Ớᐲ 7g/m3N ߣߒߡⴕߞߚ㧚࠳ࠬ࠻ߪ⍹὇Ἣജ⊒㔚ᚲߩ㔚᳇㓸Ⴒⵝ⟎ߢ᝝㓸ߒߚࡈ࡜ࠗࠕ࠶ࠪࡘߢ㧘࠳ࠬ࠻㔚᳇ᛶ᛫₸ߩ⇣ߥࠆ߽ߩ 3 ⒳㘃ࠍ૶↪ߒߚ㧚࠳ࠬ࠻ߩ‛ᕈࠍ⴫ 1 ߦ␜ߔ㧚᷷ࠟࠬᐲߪ㔚᳇ࡅ࡯࠲ߢ⺞ᢛߒ㧘Ḩಽߪᵈ౉ⵝ⟎ߢട߃ߚ᳓ࠍࡅ࡯࠲ߢ᳇ൻߐߖߡ⺞ᢛߒߚ㧚ߎߩࠟࠬߦ࠳ࠬ࠻ࠍಽᢔߐߖߚ㧚౞╴ဳ㔚᳇㓸Ⴒⵝ⟎ߢ࠳ࠬ࠻ࠍ㓸Ⴒߒߚᓟߩࠟࠬߪࡃࠣࡈࠖ࡞࠲ߢᱷࠅߩ࠳ࠬ࠻ࠍỹㆊߒߡ߆

2.2ࠄࡉࡠࡢߦᚯࠆ㧚ࠟࠬࠍᓴⅣߒߡ᷷ࠟࠬᐲߣḨಽࠍ቟ቯߐߖ ⋥ᵹ㔚ᵹߚߎߣߦࠃࠅ࠳ࠬ࠻㔚᳇ᛶ᛫₸ࠍછᗧߦ⺞ᢛߔࠆߎߣ߇ߢ⋥ᵹ⩄㔚ⵝ⟎ߩ಴ജߢ޽ࠆ⋥ᵹ㔚࿶ߣ⋥ᵹ㔚ᵹߪ⋧੕ߦ߈ࠆ㧚߹ߚ㧘࿑ 2 ߦ␜ߔหᔃ౞╴ဳ㔚ᭂ᭴ㅧߩ࠳ࠬ࠻ᛶ᛫᷹㑐ଥߒߡ߅ࠅ㧘⋥ᵹ㔚࿶ࠍ⺞ᢛߔࠆߣ⋥ᵹ㔚ᵹ߇ᄌൻߔࠆ㧚ቯࡊࡠ࡯ࡉࠍ↪޿
ᴺ13㧕ၮ␆ታ㛎⚿ᨐߣᬌ⸛㧘㕒㔚᳇ቇળᛛⴚႎ๔⸥タߩᮡḰ᷹ቯᣇ߹ߚ㧘⋥ᵹ㔚࿶ࠍ⸳ቯߒߡࡄ࡞ࠬ⩄㔚ⵝ⟎ߩࡄ࡞ࠬ㔚࿶߿ࡄࠍෳ⠨ߦࠨࡦࡊ࡞࠳ࠬ࠻ߩ㔚᳇ᛶ᛫₸ࠍ᷹ቯߒߡ࠳ࠬ࡞ࠬ㗫ᐲࠍᄌൻߐߖࠆߣ⋥ᵹ㔚ᵹ߇ᄌൻߔࠆ㧚⋥ᵹ㔚࿶ࠍ৻

13㧕࠻㔚᳇ᛶ᛫₸ߣ㓸Ⴒ₸ߩ㑐ଥࠍ᣿ࠄ߆ߦߒߚ㧚ቯߣߒߡࡄ࡞ࠬᵄᒻࠍᄌൻߐߖߚߣ߈ߩ⋥ᵹ㔚ᵹߩᄌൻߪ⩄㔚ⵝ⟎ߪ⋥ᵹ⩄㔚ⵝ⟎ߩ಴ജߦࡄ࡞ࠬ⩄㔚ⵝ⟎ߩ಴ജᄢ߈ߊ㧘⋥ᵹ㔚ᵹࠍ৻ቯߣߒߚߣ߈ߩ⋥ᵹ㔚࿶ߩᄌൻߪዊߐ

ࠍ㊀⇥ߔࠆࠃ߁ߦ᭴ᚑߒߚ㧚⋥ᵹ⩄㔚ⵝ⟎ߪ㔚᳇㓸Ⴒⵝ⟎ߢ޿㧚ߘߎߢ⋥ᵹ㔚ᵹࠍቯ㔚ᵹ೙ᓮߒߥ߇ࠄ㧘ࡄ࡞ࠬ⩄㔚ߦ߅ᓥ᧪߆ࠄ૶ࠊࠇߡ޿ࠆࠨࠗ࡝ࠬ࠲೙ᓮోᵄᢛᵹᣇᑼߩ⋥ᵹߌࠆ⋥ᵹ㔚ᵹߣ㓸Ⴒ₸ߩ㑐ଥࠍ᷹ቯߒߚ㧚⩄㔚ⵝ⟎ࠍ↪޿ߚ㧚ࡄ࡞ࠬ⩄㔚ⵝ⟎ߪࡄ࡞ࠬ㔚࿶ 0㨪-60kV㧘࿑ 4 ߦࡄ࡞ࠬ㔚࿶ࠍ-30kV ৻ቯߣߒߡ⋥ᵹ㔚ᵹࠍᄌൻߐߖ

ࡄ࡞ࠬ᏷ 30㨪500Ǵs㧘ࡄ࡞ࠬ㗫ᐲ 50㨪600pps ߩ▸࿐ߢࡄ࡞ߚߣ߈ߩ㓸Ⴒ₸ࠍ␜ߔ㧚࠳ࠬ࠻㔚᳇ᛶ᛫₸߇ 9.81010ǡ㨯cm

232 (40)3052006㕒㔚᳇ቇળ⹹㧘??, ?(200?) 0000

99

Vp=-30kV
Pw=80µs
Pf=100pps

995.21010
9.81010

97
121.01095

Collection efficiency (%)

Collection efficiency (%)

97
3.3101290
13

1.1104.21013

70
50
0

Pw=80µs
IB=0.05mA/m2
Pf=100pps

1.11014ǡcm
0-0.05-0.1-0.15 -0.2
DC current (mA/m2)-0.25

9.81011

95
90

1.11013

4.210137050

1.11014ǡcm

0-0.3

0-10-20-30-40
Pulse voltage Vp (kV)-50࿑  ⋥ᵹ㔚ᵹߣ㓸Ⴒ₸
Fig.4 DC current vs. collection efficiency.

࿑  ࡄ࡞ࠬ㔚࿶ߣ㓸Ⴒ₸
Fig.5 Pulse voltage vs. collection efficiency.

ߢߪ⋥ᵹ㔚ᵹࠍჇടߐߖࠆߣ㓸Ⴒ₸ߪะ਄ߔࠆ㧚࠳ࠬ࠻㔚᳇ߩਛ㑆ߩ࠳ࠬ࠻㔚᳇ᛶ᛫₸߇2.11013ǡ㨯cm ߩߣ߈ߪࡄ࡞ࠬᛶ᛫₸߇ 3.31012ǡ㨯cm ߩߣ߈㧘⋥ᵹ㔚ᵹ߇ 0.05mA/m2 ߹ߢ㗫ᐲࠍჇߔߣ㓸Ⴒ₸ߪะ਄ߒ㧘ࡄ࡞ࠬ㗫ᐲ߇ 100pps ߢ㓸Ⴒ₸ߪ㓸Ⴒ₸߇⋥ᵹ㔚ᵹߣ౒ߦะ਄ߒ㧘ߘࠇએ਄ߩ⋥ᵹ㔚ᵹߢߪ߇ᦨᄢߣߥࠆ㧚ߐࠄߦࡄ࡞ࠬ㗫ᐲࠍჇടߔࠆߣ㓸Ⴒ₸߇ૐਅ㓸Ⴒ₸߇ૐਅߒߡ޿ࠆ㧚ߎߩᛶ᛫㗔ၞߢߪ⋥ᵹ㔚ᵹߦᦨㆡ୯ߒߡ㧘ᦨㆡߥࡄ࡞ࠬ㗫ᐲߩ޽ࠆߎߣ߇ࠊ߆ࠆ㧚߹ߚ㓸Ⴒ₸߇

14߇ሽ࿷ߒߡ޿ࠆ㧚࠳ࠬ࠻㔚᳇ᛶ᛫₸߇ 1.110 ǡ㨯cm ߣ㜞޿ᦨᄢߣߥࠆࡄ࡞ࠬ㗫ᐲߪ࠳ࠬ࠻㔚᳇ᛶ᛫₸߇਄᣹ߔࠆߣᷫ

2᧦ઙߢߪ⋥ᵹ㔚ᵹ߇ 0.03mA/m ߢ㓸Ⴒ₸ߪᦨᄢߣߥࠅ㧘ߘࠇዋߒߡ޿ࠆ㧚⋥ᵹ⩄㔚ⵝ⟎ߩ㔚ᵹࠍ৻ቯߣߒߡࡄ࡞ࠬ㗫ᐲߣએ਄ߩ⋥ᵹ㔚ᵹߢߪᄢ߈ߊૐਅߒߡ޿ߊ㧚᡼㔚㔚ᵹߩ㑐ଥࠍ᳞߼ࠆߣ㧘᡼㔚㔚ᵹߪࡄ࡞ࠬ㗫ᐲߦᲧ଀ߒߡჇടߒߚ㧚ߎߩ⚿ᨐ߆ࠄ㧘ࡄ࡞ࠬ⩄㔚ߩㆡ↪߇⠨߃ࠄࠇࠆ࠳ࠬ࠻㔚᳇12ᛶ᛫₸߇ 10 ǡ㨯cm એ਄ߢߪ⋥ᵹ㔚ᵹߦᦨㆡ୯߇޽ࠅ㧘࠳ࠬࡄ࡞ࠬ㗫ᐲߣ౒ߦ㓸Ⴒ₸߇㜞ߊߥߞߚߩߪ㑆ᰳ⊛ߥࡄ࡞࠻㔚᳇ᛶ᛫₸ߩ਄᣹ߦ઻ߞߡᷫዋߔࠆߎߣ߇⷗಴ߐࠇߚ㧚ࠬ㔚ᵹߦࠃߞߡ࠳ࠬ࠻ߩᏪ㔚㊂߇Ⴧടߒߚߎߣߦࠃࠆߣ⠨߃ࠄࠇࠆ㧚ߐࠄߦࡄ࡞ࠬ㗫ᐲࠍჇടߒߚ႐วߪ㓸Ⴒᭂߦ᝝㓸 ࡄ࡞ࠬ㔚࿶ࡄ࡞ࠬ㔚࿶ࠍᄌൻߐߖߥ߇ࠄ᷹ቯߒߚ㓸Ⴒ₸ࠍ࿑ 5 ߦ␜ߔ㧚11࠳ࠬ࠻㔚᳇ᛶ᛫₸߇ 9.810 ǡ㨯cm ߩߣ߈㧘ࡄ࡞ࠬ㔚࿶ߩ਄ߒߚ࠳ࠬ࠻ጀౝߢㅒࠦࡠ࠽߇ᒝ߹ࠅ㧘㓸Ⴒ₸߇ૐߊߥߞߚߣ⠨߃ࠄࠇࠆ㧚᣹ߣ౒ߦ㓸Ⴒ₸ߪะ਄ߒߡ޿ߊ㧚࠳ࠬ࠻㔚᳇ᛶ᛫₸߇ 1.1 ࡄ࡞ࠬ᏷13࡞ࠬ㔚࿶߇-35kV ߢ㓸Ⴒ₸ߩะ਄ߪዋߥߊߥࠅ㧘ߘࠇએ਄ߩ
ࡄ࡞ࠬ㔚࿶ߢߪ㓸Ⴒ₸߇߿߿ૐਅߒߚ㧚࠳ࠬ࠻㔚᳇ᛶ᛫₸߇
4.21013ǡ㨯cm ߢߪࡄ࡞ࠬ㔚࿶-30kV એ਄ߢ㓸Ⴒ₸߇ૐਅߒ㧘
1.11014ǡ㨯cm ߢߪ-20 kV એ਄ߢ㓸Ⴒ₸ߪૐਅߒߡ޿ࠆ㧚

Current (mA/m2)

0.1510 ǡ㨯cm ߣ߈㧘ࡄ࡞ࠬ㔚࿶ߣ౒ߦ㓸Ⴒ₸ߪะ਄ߔࠆ߇㧘ࡄ

0.1

9.81011ǡcm
Pw=80µs
IB=-0.05mA/m2

0.05
09.81010

97Collection efficiency (%)ߎߩ⚿ᨐ㧘࠳ࠬ࠻㔚᳇ᛶ᛫₸߇㜞޿ߣ߈ߦߪࡄ࡞ࠬ㔚࿶ߦ਄㒢߇޽ࠅ㧘㓸Ⴒ₸߇ᦨᄢߣߥࠆࡄ࡞ࠬ㔚࿶ߪ࠳ࠬ࠻㔚᳇ᛶ᛫₸߇㜞ߊߥࠆߦߒߚ߇ߞߡૐਅߔࠆߎߣ߇ࠊ߆ߞߚ㧚ߎࠇߪࡄ࡞ࠬ㔚࿶ߩ਄᣹ߦߣ߽ߥߞߡ᡼㔚㔚ᵹ߇Ⴧᄢߒ㧘࠳ࠬ࠻ጀߢㅒࠦࡠ࠽߇ỗߒߊߥߞߚߚ߼ߣ⠨߃ࠄࠇࠆ㧚 ࡄ࡞ࠬ㗫ᐲࡄ࡞ࠬ㗫ᐲߣ㓸Ⴒ₸߅ࠃ߮᡼㔚㔚ᵹߩ㑐ଥࠍ࿑ 6 ߦ␜ߔ㧚᡼㔚㔚ᵹߪࡄ࡞ࠬ⩄㔚ⵝ⟎ߣ⋥ᵹ⩄㔚ⵝ⟎ߩ㔚ᵹߩว⸘ߢ

95
90

2.11013
70500޽ࠆ㧚࠳ࠬ࠻㔚᳇ᛶ᛫₸߇ 9.81011ǡ㨯cm ߢߪࡄ࡞ࠬ㗫ᐲࠍჇߔߣ㓸Ⴒ₸ߪะ਄ߔࠆ㧚࠳ࠬ࠻㔚᳇ᛶ᛫₸߇ 1.11014ǡ㨯

9.81012

Vp=-30kV
Pw=80µs
IB=-0.05mA/m2
0100

1.11014ǡcm

300
400
500
200
Pulse frequency Pf (pps)600

࿑  ࡄ࡞ࠬ㗫ᐲߣ㓸Ⴒ₸߅ࠃ߮᡼㔚㔚ᵹ
Fig.6 Pulse frequency vs. collection efficiency and current.

cm ߢߪࡄ࡞ࠬ㗫ᐲࠍᷫዋߒߚ߶߁߇㓸Ⴒ₸ߪะ਄ߔࠆ㧚ߘ- 3 -233 (41)ࡄ࡞ࠬ⩄㔚࿕ቯ㔚ᭂㇱࠍ⚵วߖߚ⒖േ㔚ᭂဳ㔚᳇㓸Ⴒⵝ⟎㧔ਃဈବ᣿ࠄ㧕ࡄ࡞ࠬ㔚ᵹߪࡄ࡞ࠬ᏷ࠍᐢߍࠆߣჇടߒ㧘⁜߼ࠆߣᷫዋߔ

ߣ࿑ 8 ߩ㓸Ⴒ₸᷹ቯ⚿ᨐࠍ↪޿ߡ⸘▚ߒߚ㧚⋥ᵹ⩄㔚ߦᲧߴࠆ㧚ߘߎߢ࠳ࠬ࠻㔚᳇ᛶ᛫₸߇㜞޿ߣ߈ߪࡄ࡞ࠬ᏷ࠍ⁜߼㧘ߡ㑆ᰳ⩄㔚ߦ߅ߌࠆ㓸Ⴒ㕙Ⓧߪ 90㧑㧘ࡄ࡞ࠬ⩄㔚ߪ 70㧑⒟࠳ࠬ࠻㔚᳇ᛶ᛫₸߇ૐ޿ߣ߈ߪᐢߍࠆߎߣߢᐢ▸࿐ߩ࠳ࠬᐲߣዊဳൻߢ߈ࠆߎߣ߇ࠊ߆ߞߚ㧚ߥ߅㑆ᰳ⩄㔚ߩ㓸Ⴒᕈ⢻࠻㔚᳇ᛶ᛫₸ߦኻߒߡࡄ࡞ࠬ⩄㔚ࠍㆡ↪ߢ߈ࠆߣ⠨߃ߚ㧚ߒะ਄ലᨐߪ┙⧎ࠄߩታ㛎⚿ᨐ 13㧕ߣ߶߷৻⥌ߒߡ޿ࠆ㧚߆ߒ㧘ታ㛎▸࿐ߢࡄ࡞ࠬ᏷ߩലᨐߪࡄ࡞ࠬ㔚࿶㧘ࡄ࡞ࠬ㗫ᐲ
3.

ߦᲧߴߡዋߥ߆ߞߚ㧚ࡄ࡞ࠬ᏷ࠍᄌൻߐߖߚߣ߈ߩ㓸Ⴒ₸ࠍ
࿑ 7 ߦ␜ߔ㧚ࡄ࡞ࠬ⩄㔚ᣇᑼ࿕ቯ㔚ᭂㇱߣ⒖േ㔚ᭂㇱߩ⚵วߖ㓸Ⴒᕈ⢻11࠳ࠬ࠻㔚᳇ᛶ᛫₸߇ 9.810 ǡ㨯cm ߩߣ߈㧘ࡄ࡞ࠬ᏷ࠍᐢ

ࡄ࡞ࠬ⩄㔚ߦࠃࠆ㜞ᛶ᛫࠳ࠬ࠻㓸Ⴒࠍⴕ߁ߦߪ࠳ࠬ࠻㔚12ߍࠆߣ㓸Ⴒ₸ߪ߿߿ะ਄ߔࠆ㧚߹ߚ 9.810 ǡ㨯cm ߩߣ߈㧘᳇ᛶ᛫₸ߦวࠊߖߡ㧘ࡄ࡞ࠬ㔚࿶㧘ࡄ࡞ࠬ㗫ᐲ㧘ࡄ࡞ࠬ᏷ߥ

ࡄ࡞ࠬ᏷ߦ߆߆ࠊࠄߕߦ㓸Ⴒ₸ߪ߶߷หߓ୯ࠍ␜ߒߚ㧚ߒ߆ߤߩࡄ࡞ࠬᵄᒻ㧘⋥ᵹ⩄㔚ⵝ⟎ߩ᡼㔚㔚ᵹߥߤߩ⺞ᢛ߇ᔅⷐ

14ߒ㧘࠳ࠬ࠻㔚᳇ᛶ᛫₸߇ 1.110 ǡ㨯cm ߩߣ߈ߪࡄ࡞ࠬ᏷ࠍ

ߣߥࠆ㧚߹ߚࡄ࡞ࠬᵄᒻߩᦨㆡ᧦ઙߣ⋥ᵹ⩄㔚ⵝ⟎ߩ⩄㔚㔚⁜߼ࠆߣ㓸Ⴒ₸߇ะ਄ߔࠆ௑ะ߇⷗ࠄࠇߚ㧚ߘߎߢࡄ࡞ࠬ᏷࿶㧘᡼㔚㔚ᵹߪ⋧੕ߦ㑐ㅪߒߡ޿ࠆ㧚ߎߩ࠳ࠬ࠻㔚᳇ᛶ᛫₸ࠍࡄ࡞ࠬ⩄㔚ⵝ⟎ߩ㒢⇇ߩ 30Ǵs ߹ߢ⁜߼ߡ㓸Ⴒ₸ࠍ᷹ቯߒߣࡄ࡞ࠬᵄᒻߩ⥄േ೙ᓮ߇ߢ߈ࠇ߫㧘ࡄ࡞ࠬ⩄㔚ⵝ⟎ߩ⾌↪

ߚ㧚ߘߩ⚿ᨐ㧘㓸Ⴒ₸ߪߐࠄߦะ਄ߒ㧘ߎߩታ㛎▸࿐ߢߪࡄࠍ⠨ᘦߒߡ߽ࡄ࡞ࠬ⩄㔚ᣇᑼߩ⚻ᷣᕈߪ޽ࠆߣ⠨߃ࠄࠇࠆ㧚࡞ࠬ᏷߇⁜޿߶ߤ㓸Ⴒ₸߇ะ਄ߔࠆߎߣ߇⷗಴ߐࠇߚ㧚ߎߩࡄ࡞ࠬ⩄㔚ࠍ࿕ቯ㔚ᭂㇱߦㆡ↪ߒߡ⒖േ㔚ᭂㇱߣ⚵ว ࡄ࡞ࠬ⩄㔚ߣ⋥ᵹ⩄㔚㧘㑆ᰳ⩄㔚ߩ㓸Ⴒᕈ⢻Ყセߖࠇ߫㧘㔚᳇㓸Ⴒⵝ⟎ߩ㜞ᛶ᛫࠳ࠬ࠻ߩ㓸Ⴒᕈ⢻ࠍߐࠄߦะࡄ࡞ࠬ⩄㔚㧘⋥ᵹ⩄㔚ߣ㑆ᰳ⩄㔚ߣ⩄㔚ᣇᑼࠍಾᦧ߃ߥ߇਄ߢ߈ࠆߣ⠨߃㧘⃻࿾ታ㛎ࠍ߅ߎߥߞߚ㧚ࠄ㓸Ⴒ₸ߩ᷹ቯࠍⴕߞߚ㧚࠳ࠬ࠻㔚᳇ᛶ᛫₸ࠍᮮゲߦߒߡᢛ

3.1ℂߒߚ᷹ቯ⚿ᨐࠍ࿑ 8 ߦ␜ߔ㧚ࡄ࡞ࠬ⩄㔚ߪฦ࠳ࠬ࠻㔚᳇ᛶ࿕ቯ㔚ᭂㇱߦࡄ࡞ࠬ⩄㔚ࠍㆡ↪ߒߡ⒖േ㔚ᭂㇱߣ⚵วߖ᛫₸ߢ㓸Ⴒ₸߇ᦨ⦟ߣߥࠆᵄᒻ᧦ઙߦ߅ߌࠆ᷹ቯ୯ࠍ␜ߒ

ߚታ㛎ࠍᄙ⒳㘃ߩャ౉὇ࠍΆ὾ߒߡ޿ࠆ⍹὇Ά὾ࡏࠗ࡜↪

2⃻࿾ታ㛎ⵝ⟎߅ࠃ߮ታ㛎ᣇᴺ

ߡ޿ࠆ㧚⋥ᵹ⩄㔚ߣ㑆ᰳ⩄㔚ߪ᡼㔚㔚ᵹ߇ 0.2mA/m ߦ߅ߌ

ߩ⒖േ㔚ᭂဳ㔚᳇㓸Ⴒⵝ⟎ߢ⃻࿾ታ㛎ߒߚ㧚⍹὇Ά὾ࡏࠗ࡜ࠆ㓸Ⴒ₸ࠍ␜ߒߚ㧚ߩឃࠟࠬಣℂ♽⛔ࠍ࿑ 9 ߦ␜ߔ㧚ࡏࠗ࡜⫳⊒㊂ߪ 530t/h ߢ㧘࠳ࠬ࠻㔚᳇ᛶ᛫₸ߣ㓸Ⴒ₸ߩ㑐ଥࠍ⷗ࠆߣ⋥ᵹ⩄㔚ߢߪࡏࠗ࡜Ά὾ឃࠟࠬߪࠛࠕ࡯ࡅ࡯࠲ࠍ⚻↱ߒߡ⒖േ㔚ᭂဳ㔚࠳ࠬ࠻㔚᳇ᛶ᛫₸߇ᄢ߈ߊߥࠆߣ㓸Ⴒ₸߇ᄢ᏷ߦૐਅߒߡ᳇㓸Ⴒⵝ⟎ߢ࠳ࠬ࠻ࠍ㒰෰ߒߚᓟ㧘Ḩᑼ⣕⎫ⵝ⟎ࠍ⚻ߡᾍ⓭޿ࠆ㧚㑆ᰳ⩄㔚ߩ㓸Ⴒ₸ߪ⋥ᵹ⩄㔚ߦᲧߴߡૐਅ߇߿߿ዋߥ

߆ࠄឃ಴ߐࠇࠆ㧚╙ 1 ඙ߪ㓸Ⴒ᧼㑆㓒 300mm ߩ✢ኻᐔ᧼㔚13ߊ㧘ࡄ࡞ࠬ⩄㔚ߩ㓸Ⴒ₸ߩૐਅߪߐࠄߦዋߥ޿㧚․ߦ 10 ǡ㨯ᭂ᭴ᚑߦߥߞߡ޿ࠆ㧚ߎߩ࿕ቯ㔚ᭂㇱߦࡄ࡞ࠬ⩄㔚ⵝ⟎ࠍ⸳cm એ਄ߩ㜞ᛶ᛫࠳ࠬ࠻ߢࡄ࡞ࠬ⩄㔚߇㔚᳇㓸Ⴒߦ᦭ലߥߎ

⟎ߒߡ⋥ᵹ⩄㔚ⵝ⟎ߩ಴ജߦࡄ࡞ࠬ㔚࿶ࠍ㊀⇥ߢ߈ࠆࠃ߁

13ߣ߇ࠊ߆ࠆ㧚࠳ࠬ࠻㔚᳇ᛶ᛫₸ 110 ǡ㨯cm ߦ߅޿ߡ㧘ฦ⩄㔚ᣇᑼߢห৻㓸Ⴒ₸ߣߥࠆ㓸Ⴒ㕙ⓍߩᲧ₸ࠍ Deutsch ߩᑼ

97

9.81011

95

9.81012

132.1104.21013
70

020

40
60
80
100
Pulse width Pw (Ǵs)

120࿑  ࡄ࡞ࠬ᏷ߣ㓸Ⴒ₸Fig.7 Pulse width vs. collection efficiency.

95
90

DC energization
I=-0.2mA/m2
Intermittent energization
I=-0.2mA/m2

70
50

1.11014ǡcm0Pulse energization

979050࠳ࠬ࠻Ớᐲߪ౞╴ỹ⚕ᴺߣశᢔੂᑼㅪ⛯࠳ࠬ࠻Ớᐲ⸘ߢ99

Vp=-30kV
IB=0.05mA/m2
Pf=100pps
Collection efficiency (%)

Collection efficiency (%)

99

ߦߒߚ㧚

14㧕

1401011

1012

1013

Dust resistivity (ǡ㨯cm)࿑  ⩄㔚ᣇᑼߦࠃࠆ㓸Ⴒ₸ߩᲧセ
Fig.8 Comparison of collection efficiency on charging methodes

- 4 -

1014

234 (42)3052006㕒㔚᳇ቇળ⹹㧘??, ?(200?) 0000

DC
power
supplyPulse
power
supply2.51012

99

Air
heaterIDF
Co=0.2g/m3N

Ci=15g/m3N
Fixed electrodesectionMoving electrodesectionDe SOxStack

Q=567,000m3N/h
Tg=153͠࿑ 9 ⃻࿾ታ㛎ߦ↪޿ߚ⍹὇Ά὾ࡏࠗ࡜ឃࠟࠬಣℂ♽⛔
Fig.9 Field test facilities for the coal fired boiler.

Collection efficiency (%)

Outlet dust
monitor

Inlet dust
monitorCoal firedboiler

99.5

DC
power
supply5.01012

97
95

3.01013ǡ㨯cm

90

70

Pw=100µs
Pf=120pps
IB=-0.035mA/m250

᷹ቯߒߚ㧚ㅪ⛯ᑼ࠳ࠬ࠻Ớᐲ⸘ߪ㔚᳇㓸Ⴒⵝ⟎ߩ಴ญߦ⸳⟎0ߒߡ⩄㔚᧦ઙߦࠃࠆ಴ญ࠳ࠬ࠻Ớᐲߩᄌൻࠍ⍴ᤨ㑆ߢ᷹ቯߔࠆߩߦ૶↪ߒߚ㧚ߎߩ᷹ቯߢࡄ࡞ࠬ⩄㔚ߩᦨㆡ᧦ઙࠍ᳞߼

ࡉࠍ↪޿ߡ㧘㔚᳇㓸Ⴒⵝ⟎౉ญᾍ㆏ߦߡ᷹ቯߒߚ㧚-30-40-50ߚ㧚ታ㛎⚿ᨐߣᬌ⸛ ࿑ 11 ߪࡄ࡞ࠬ㔚࿶ߣ㓸Ⴒ₸ߩ㑐ଥࠍ␜ߒߡ޿ࠆ㧚࠳ࠬ࠻(1) ࡄ࡞ࠬ⩄㔚ᵄᒻߣ㓸Ⴒᕈ⢻㔚᳇ᛶ᛫₸߇5.01012ǡ㨯cm ߩߣ߈ߩࡄ࡞ࠬ㔚࿶ߣ㓸Ⴒ₸ߩࡄ࡞ࠬ⩄㔚ߪ㓸Ⴒᕈ⢻߳ߩᓇ㗀࿃ሶ߇ᄙߊ㧘࠳ࠬ࠻㔚᳇ᛶ㑐ଥࠍ⷗ࠆߣ㧘ࡄ࡞ࠬ㔚࿶ࠍ਄᣹ߔࠆߣ㓸Ⴒ₸ߪะ਄ߔࠆ߇㧘᛫₸ߦࠃߞߡࡄ࡞ࠬᵄᒻߩᦨㆡ୯߇ᄌൻߔࠆߎߣߪ౞╴ဳ

-35kV એ਄ߦߥࠆߣ㓸Ⴒ₸߇ૐਅߔࠆ㧚3.01013ǡ㨯cm ߩߣ㔚᳇㓸Ⴒⵝ⟎ࠍ↪޿ߚၮ␆ታ㛎ߢߔߢߦ᣿ࠄ߆ߦߒߚ㧚ታᯏ߈ߦ㓸Ⴒ₸߇ᦨ㜞ߣߥࠆࡄ࡞ࠬ㔚࿶ߪ-28kV ߢ޽ߞߚ㧚ࡄ࡞ߢߎߩ⃻⽎ࠍ⏕⹺ߔࠆߚ߼ߦ㧘ࡄ࡞ࠬ⩄㔚ᤨߩ⋥ᵹ㔚ᵹ㧘ࡄࠬ㔚࿶ߪ࠳ࠬ࠻㔚᳇ᛶ᛫₸ߦࠃߞߡ⇣ߥࠆᦨㆡ୯߇ߺࠄࠇ㧘࡞ࠬ㔚࿶ߥߤࠍᄌൻߐߖߥ߇ࠄ㔚᳇㓸Ⴒⵝ⟎ߩ಴ญ࠳ࠬ࠻࠳ࠬ࠻㔚᳇ᛶ᛫₸߇㜞޿߶ߤᦨㆡߥࡄ࡞ࠬ㔚࿶ߪૐߊߥࠅ㧘Ớᐲࠍ⸘᷹ߒߚ㧚࿑ 10 ߦࡄ࡞ࠬ㔚࿶ࠍ৻ቯߣߒߡ⋥ᵹ㔚ᵹၮ␆ታ㛎ߩ⚿ᨐߣห᭽ߩ௑ะࠍ␜ߒߚ㧚ࠍᄌൻߐߖߚߣ߈ߩ಴ญ࠳ࠬ࠻Ớᐲࠍ␜ߔ㧚ߎߩߣ߈㔚᳇㓸(2) ฦ⒳⩄㔚ᣇᑼߣ㓸Ⴒᕈ⢻Ⴒⵝ⟎ߩ╙ 2 ඙ߢ޽ࠆ⒖േ㔚ᭂㇱߪ৻ቯ㔚ᵹߩ⋥ᵹ⩄㔚ߣߒࡄ࡞ࠬ⩄㔚ߩ᦭ലᕈࠍ⏕⹺ߔࠆߚ߼ߦ㧘࿕ቯ㔚ᭂㇱߩ⩄㔚ߚ㧚࠳ࠬ࠻㔚᳇ᛶ᛫₸߇ 51012ǡ㨯cm ߣ 31013ǡ㨯cm ߩߣࠍࡄ࡞ࠬ⩄㔚㧘㑆ᰳ⩄㔚㧘⋥ᵹ⩄㔚ߣᄌൻߐߖߡ⩄㔚ᣇᑼߦ߈㧘࿕ቯ㔚ᭂㇱߩ⋥ᵹ㔚ᵹ߇-0.027mA/m2 ߦ߅޿ߡ಴ญ࠳ࠬࠃࠆ㓸Ⴒᕈ⢻ߩᲧセࠍⴕߞߚ㧚ߎߩߣ߈⒖േ㔚ᭂㇱߪ⋥ᵹ⩄࠻Ớᐲߪᦨዊ୯ࠍ␜ߒߚ㧚ߘߎߢએ㒠ߩࡄ࡞ࠬ⩄㔚ታ㛎ߪ࿕㔚ߢ޽ࠆ㧚౞╴ဳ࠳ࠬ࠻ᛶ᛫᷹ቯࡊࡠ࡯ࡉߢ᷹ቯߒߚ࠳ࠬ࠻ቯ㔚ᭂㇱߩ⋥ᵹ⩄㔚ⵝ⟎ߩ㔚ᵹࠍ-0.027mA/m2 ߣߒߡታᣉߒ㔚᳇ᛶ᛫₸ߪΆᢱ὇ߩ⒳㘃ߦࠃߞߡ 5.01011ǡ㨯cm ߆ࠄ 3.0
1013ǡ㨯cm ߹ߢᄌൻߒߡ޿ࠆ㧚࿑ 12 ߦ᷹ቯ⚿ᨐࠍ␜ߔ㧚╙

13

Outlet dust density (g/m3N)-20࿑  ࡄ࡞ࠬ㔚࿶ߣ㓸Ⴒ₸
Fig.11 Pulse voltage vs. collection efficiency.

ᛶ᛫₸ߪ࿑ 2 ߩหᔃ౞╴ဳ㔚ᭂ᭴ㅧߩ࠳ࠬ࠻ᛶ᛫᷹ቯࡊࡠ࡯

3.010 ǡ㨯cm
Vp=-30kV
Pf=120pps
Pw=100Ǵs

0. 3-10

Pulse voltage Vp (kV)ߡ㧘㓸Ⴒ₸ߪ♖ᐲߩ㜞޿౞╴ỹ⚕ᴺߢ᷹ቯߒߚ㧚࠳ࠬ࠻㔚᳇

3.20㧝඙ߩ࿕ቯ㔚ᭂㇱࠍࡄ࡞ࠬ⩄㔚ߣߒߚߣ߈ߪ㧘㑆ᰳ⩄㔚߿⋥ᵹ⩄㔚ߦᲧߴߡ㜞޿㓸Ⴒ₸ࠍ␜ߒߡ޿ࠆ㧚࠳ࠬ࠻㔚᳇ᛶ᛫₸
߇1.01013ǡ㨯cm ߦ߅ߌࠆ㓸Ⴒ₸ߪ࿕ቯ㔚ᭂㇱࠍ⋥ᵹ⩄㔚ߒߚߣ߈ߩ 91.0㧑ߦᲧߴߡ㑆ᰳ⩄㔚ߢ 94.2㧑㧘ࡄ࡞ࠬ⩄㔚ߢ

0. 297.5㧑ߣะ਄ߒߡ޿ࠆ㧚ߎߩ⚿ᨐ㧘಴ญ࠳ࠬ࠻Ớᐲߪ㑆ᰳ⩄㔚ߢ⋥ᵹ⩄㔚ߩ 64.4㧑㧘ࡄ࡞ࠬ⩄㔚ߢ 27.7㧑ߦᷫዋߔࠆ㧚࠳
0.1ࠬ࠻㔚᳇ᛶ᛫₸߇㜞޿߶ߤࡄ࡞ࠬ⩄㔚ߣ㑆ᰳ⩄㔚㧘⋥ᵹ⩄㔚

5.01012ǡ㨯cm
Vp=-35kV
Pf=120pps
Pw=150Ǵs

00.

-0.01

ߩ㓸Ⴒ₸ߩᏅߪ㗼⪺ߣߥࠆ㧚(3) ࿕ቯ㔚ᭂㇱߣ⒖േ㔚ᭂㇱߩㇱಽ㓸Ⴒ₸
-0.02

-0.03

⩄㔚ᣇᑼߩ㆑޿ߦࠃࠆ࿕ቯ㔚ᭂㇱߣ⒖േ㔚ᭂㇱߩฦ‫ߩޘ‬-0.04㓸Ⴒ₸ࠍᬌ⸛ߔࠆߚ߼㧘╙ 2 ඙ߩ⒖േ㔚ᭂㇱࠍή⩄㔚ߣߒߡ

Current (mA/m2)಴ญ࠳ࠬ࠻Ớᐲࠍ᷹ቯߒߡ㓸Ⴒ₸ࠍ᳞߼ߚ㧚╙ 1 ඙ߩㇱಽ㓸

࿑ 10 ⋥ᵹ㔚ᵹߣ಴ญ࠳ࠬ࠻Ớᐲ
Fig.10 DC current vs. outlet dust loading.

Ⴒ₸ࠍ࿑ 13 ߦ㤥Ⴃ⸥ภߢ␜ߒߚ㧚㤥ਣශߩ⋥ᵹ⩄㔚ߦᲧߴ- 5 -235 (43)ࡄ࡞ࠬ⩄㔚࿕ቯ㔚ᭂㇱࠍ⚵วߖߚ⒖േ㔚ᭂဳ㔚᳇㓸Ⴒⵝ⟎㧔ਃဈବ᣿ࠄ㧕
99.5

99.5

97

Collection efficiency

Collection efficiency

99

1F:Pulse energization

999590

1F:Intermittent energization70

1F: DC energizatio

50010131012
Dust resistivity (ǡ㨯cm)

97

1F:DC energization

9590
70

2F collection efficiency(Calculated)
2F: DC energizatio

50

2F: DC energizatio
1011

1F collection efficiency 1F:Pulse energization
1F:Intermittent energization(Measured)

01014

1011

1013
1012
Dust resistivity (ǡ㨯cm)1014

࿑ 12 ⩄㔚ᣇᑼߦࠃࠆ㓸Ⴒ₸ߩᲧセ
Fig.12 Comparison of collection efficiency by charging methods.

࿑ 13 ⩄㔚ᣇᑼߦࠃࠆ㓸Ⴒ₸ߩᲧセ
Fig.13 Comparison of collection efficiency by charging methods.

ߡ㤥ⷺශߩࡄ࡞ࠬ⩄㔚ߩ㓸Ⴒ₸ߪ㜞ߊ㧘࠳ࠬ࠻㔚᳇ᛶ᛫₸߇㔚ᵄᒻߣ⋥ᵹ㔚ᵹߦᦨㆡ୯߇޽ࠅ㧘࿕ቯ㔚ᭂㇱߩ⋥ᵹ㔚ᵹߪ㜞ߊߥࠆߦᓥߞߡ㧘ࡄ࡞ࠬ⩄㔚ߣ⋥ᵹ⩄㔚ߩᏅߪᄢ߈ߊߥࠅ㧘-0.027mA/m2 ߢ޽ߞߚ㧚ᦨㆡߥࡄ࡞ࠬ㔚࿶ߪ-28㨪-35kV ߢ࠳⋥ᵹ⩄㔚ߩ㓸Ⴒ₸ߩૐਅߦᲧߴߡࡄ࡞ࠬ⩄㔚ߩ㓸Ⴒ₸ૐਅࠬ࠻㔚᳇ᛶ᛫₸߇㜞޿߶ߤૐਅߒߡ޿ߚ㧚╙ 1 ඙ߩ࿕ቯ㔚ᭂ߇ዊߐ޿⚿ᨐࠍ␜ߒߡ޿ࠆ㧚߹ߚ㑆ᰳ⩄㔚ߪ⋥ᵹ⩄㔚ߦᲧߴㇱࠍ⋥ᵹ⩄㔚㧘㑆ᰳ⩄㔚㧘ࡄ࡞ࠬ⩄㔚ߣߒߚߣ߈㧘࠳ࠬ࠻㔚ߡ߿߿㓸Ⴒ₸߆㜞޿⚿ᨐߣߥߞߡ޿ࠆ㧚᳇ᛶ᛫₸߇㜞ߊߥߞߚߣ߈ߩ㓸Ⴒ₸ߩૐਅߪ⋥ᵹ⩄㔚ߦᲧ ╙ 1 ඙ߩㇱಽ㓸Ⴒ₸᷹ቯ୯ߣ࿕ቯ㔚ᭂㇱߣ⒖േ㔚ᭂㇱࠍ⚵ߴߡࡄ࡞ࠬ⩄㔚ߩᣇ߇ዋߥߊ㧘ࡄ࡞ࠬ⩄㔚߇᦭ലߥߎߣ߇ࠊ

วߖߚߣ߈ߩ㓸Ⴒ₸᷹ቯ୯ߣࠍ↪޿ߡ╙㧞඙ߩㇱಽ㓸Ⴒ₸߆ߞߚ㧚ࠍ▚಴ߒ㧘࿑ 13 ߦ⊕ᛮ߈⸥ภߢ␜ߒߚ㧚╙ 2 ඙ߩ⒖േ㔚ᭂࡄ࡞ࠬ⩄㔚ᣇᑼ߇㜞ᛶ᛫࠳ࠬ࠻ߩ㔚᳇㓸Ⴒߦ᦭ലߢ޽ࠆ

ㇱߪߔߴߡ⋥ᵹ⩄㔚ߢ޽ࠆ߇㧘㓸Ⴒ₸ߪ╙ 1 ඙ߩ࿕ቯ㔚ᭂㇱ߇߹ߛ᳢↪ൻߐࠇߡ޿ߥ޿㧚ߎࠇߪࡄ࡞ࠬ⩄㔚ⵝ⟎ߩᕈ⢻߿ࠍࡄ࡞ࠬ⩄㔚ߔࠆߣ⋥ᵹ⩄㔚ߦᲧߴߡ㧘⒖േ㔚ᭂㇱߩ㓸Ⴒ₸ࠦࠬ࠻㧘࠳ࠬ࠻㔚᳇ᛶ᛫₸ߣࡄ࡞ࠬᵄᒻߩ೙ᓮᣇᑼߩ⏕┙ߥ߇ᢙ㧑ะ਄ߒߡ޿ࠆ㧚ߎߩ⒖േ㔚ᭂㇱߩ㓸Ⴒ₸߇ะ਄ߒߚℂߤ㧘Ꮏᬺ⊛ߦ⸃᳿ߒߥߌࠇ߫ߥࠄߥ޿⺖㗴߇ᱷߞߡ޿ࠆߚ߼↱ߣߒߡ㧘(1) ࡄ࡞ࠬ⩄㔚ߩ╙ 1 ඙ࠍ᭵ᛂߒߚߣ߈ߩ㘧ᢔ࠳ߣ⠨߃ࠄࠇࠆ㧚ᧄ⎇ⓥ߇ࡄ࡞ࠬ⩄㔚ᣇᑼߩታ↪ൻߩ৻ഥߣߥࠬ࠻ߩ☸ᓘ߇ᄢ߈ߊ㧘⒖േ㔚ᭂㇱߢ㓸Ⴒߒ߿ߔ޿㧘(2) ࡄ࡞ࠆߎߣࠍᦼᓙߒߚ޿㧚ࠬ⩄㔚ߢ╙ 1 ඙ߩ㓸Ⴒ₸߇ะ਄ߒ㧘⒖േ㔚ᭂㇱߩ࠳ࠬ࠻Ớᐲෳ⠨ᢥ₂㕒㔚᳇ቇળ✬㧦㕒㔚᳇ࡂࡦ࠼ࡉ࠶ࠢR㧘ࠝ࡯ࡓ␠2) ਃဈବ᣿㧘ᄢᶆᔘ㧘᦭శᱞ㓶㧦㕒㔚᳇ቇળ⹹㧘30 (2006) 128
3) ਃဈବ᣿㧘ᄢᶆᔘ㧘⊕ਣାᒾ㧘᦭శᱞ㓶㧦㕒㔚᳇ቇળ⹹,30 (2006) 185
4) ਃဈବ᣿㧘ᄢᶆᔘ㧘ጊፒ⒤㧦㕒㔚᳇ቇળ⹹, 30(2006)223
5) Ⴧ↰㐹৻㧘᳓㊁ᓆ㧦㕒㔚᳇ቇળ⹹ 2 (1978) 59
6) H.J. White㧦Trans. AIEE,71,pt1, p.326 (1952)
7) K.S.Kumar, P.L.Feldman, H.I.Milde, C.Schbert 㧦 Proc.
IEEE-IAS 79:6G, p.1333 8) P.Lausen, H.Henriksen, H.Hoegh Petersen㧦Proc. IEEE-IAS
79:6B, p.163 (1979)9) ᷰㇱノ㓶㧘੉ፉᔘ㧘ኹ੗ኡ㧦Ἣജේሶജ⊒㔚㧘40 (1988) 155
10) ᩉ੗⺈㧘਄ፉ⾫㇢㧦㔚᳇ቇળ⎇ⓥળ⾗ᢱ ES-82㧘p.99㧘㔚
᳇ቇળ (1982)11) ᧻ᧄ㓁৻㧘ਛጊ⼾㧦㕒㔚᳇ቇળ⹹㧘9 (1985) 315
12) ਃဈବ᣿㧘⿒ဈ┨↵㧘ᄢᶆᔘ㧦㕒㔚᳇ቇળ⻠Ṷ⺰ᢥ㓸’69,
p7 (1996)
13) 㕒㔚᳇ቇળ㧦㕒㔚᳇ቇળᛛⴚႎ๔╙ 1 ภ㧘㕒㔚᳇ቇળ(1986)
14) ┙⧎㧦㕒㔚᳇ቇળ⹹㧘12 (1988) 433
15) W. Deutsch㧦Ann. d. Phys., 68 (1922) 335

߇ૐਅߒߚߎߣ߇⠨߃ࠄࠇࠆ㧚1)4.

߹ߣ߼࿕ቯ㔚ᭂㇱߣ⒖േ㔚ᭂㇱࠍ⚵วߖߚ⒖േ㔚ᭂဳ㔚᳇㓸Ⴒⵝ⟎ߩ࿕ቯ㔚ᭂㇱࠍࡄ࡞ࠬ⩄㔚ߒߡ㜞ᛶ᛫࠳ࠬ࠻ߩ㓸Ⴒᕈ⢻ࠍะ਄ߔࠆߎߣࠍ⋡⊛ߦ㧘ၮ␆ታ㛎ߦࠃߞߡࡄ࡞ࠬ⩄㔚ⵝ⟎ߩࡄ࡞ࠬᵄᒻ߅ࠃ߮⋥ᵹ⩄㔚ⵝ⟎ߩ᡼㔚㔚ᵹߣ࠳ࠬ࠻㔚᳇ᛶ᛫₸ߩ㑐ଥࠍታ㛎⊛ߦ᣿ࠄ߆ߦߒߚ㧚౞╴ဳ㔚᳇㓸Ⴒⵝ⟎ࠍ↪޿ߚၮ␆ታ㛎ߩ⚿ᨐ㧘ࡄ࡞ࠬ⩄㔚ᣇᑼߩㆡ↪߇⠨߃ࠄࠇࠆ 1012ǡ㨯cm એ਄ߩ㜞ᛶ᛫࠳ࠬ࠻ߢࡄ࡞ࠬᵄᒻߣ⋥ᵹ㔚ᵹߦᦨㆡ୯߇޽ࠅ㧘࠳ࠬ࠻㔚᳇ᛶ᛫₸ߦࠃߞߡߘߩᦨㆡ୯߇⇣ߥߞߡ޿ࠆߎߣ߇᣿ࠄ߆ߦߥߞߚ㧚߹ߚ⍹὇Ά὾ࡏࠗ࡜ឃࠟࠬߢࡄ࡞ࠬ⩄㔚ߥߤߩฦ⒳⩄㔚ᣇᑼࠍ࿕ቯ㔚ᭂㇱߦㆡ↪ߒߡ⒖േ㔚ᭂㇱߣ⚵วߖߚ⒖േ㔚ᭂဳ㔚᳇㓸Ⴒⵝ⟎ߩ⃻࿾ታ㛎ࠍⴕߞߚ㧚ߘߩ⚿ᨐߪ㧘ၮ␆ታ㛎⚿ᨐߣห᭽ߦ㧘࠳ࠬ࠻㔚᳇ᛶ᛫₸ߦࠃߞߡ⇣ߥࠆࡄ࡞ࠬ⩄- 6 -