500DT-A85脫硝泵(軸封(密封))脫硫泵的基礎(chǔ)知識
火力發(fā)電廠燃燒排放煙氣中含有大量有害物質(zhì),排放到大氣中會對環(huán)境造成嚴(yán)重污染。煙氣脫硫(FGD-Flue Gas Desulphurization),就是從煙氣中除去硫化物(SO2)。煙氣脫硫設(shè)備可以將絕大部分硫化物從電廠煙氣中除去,以達(dá)到排放標(biāo)準(zhǔn)保護(hù)環(huán)境。目前大型火力發(fā)電廠多采用比較成熟的濕法工藝進(jìn)行煙氣脫硫。
濕法煙氣脫硫,煙氣通過包含在水溶液中的吸收劑進(jìn)行反應(yīng),吸收劑可以使用氨液或亞硫酸鈉等材料。但是應(yīng)用比較廣泛的是采用石灰或石灰石漿液作為吸收劑。采用石灰或石灰石漿液,使鍋爐尾部煙氣在噴淋塔內(nèi)與之接觸反應(yīng),漿液中的鈣同煙氣中的SO2反應(yīng),生成石膏,同時(shí)去除煙氣中的其他污染物,如粉塵、HF、SO3等。為此,應(yīng)在塔外安裝大型循環(huán)泵(噴淋循環(huán)泵),向塔內(nèi)循環(huán)供給石灰石漿液。另外,還需要一些輔助用泵,如石灰漿系統(tǒng)的預(yù)洗滌泵及石膏排水用泵等。8、煤炭工業(yè)、煤化工中的腐蝕性液體、煤漿的輸送;洗選煤配用泵。
泵型號 | 轉(zhuǎn)速 | 流量 | 揚(yáng)程 | 軸功率 | 效率η | 必需汽蝕余量 | 配套電機(jī) | |
n | Q | H | Pa | (NPSH)r | 型號 | 功率/電壓 | ||
r/min | m3/h | m | Kw | % | m | Kw/V | ||
800DT-A96 | 595 | 5915 | 31.3 | 632.6 | 79.7 | 10.1 | YKK6301-10 | 800/6000 |
7250 | 29.2 | 653.7 | 88.2 | YKK6302-10 | 900/6000 | |||
9230 | 28.8 | 815.2 | 88.8 | YKK6303-10 | 1120/6000 | |||
10800 | 26.5 | 926.8 | 84.1 | YKK710-10 | 1250/6000 | |||
496 | 4931 | 21.8 | 367.3 | 79.7 | 7.7 | YKK5604-12 | 500/6000 | |
6044 | 20.3 | 378.8 | 88.2 | YKK5604-12 | 500/6000 | |||
7694 | 20 | 471.9 | 88.8 | YKK6302-12 | 630/6000 | |||
9003 | 18.4 | 536.4 | 84.1 | YKK6303-12 | 710/6000 | |||
800DT-A90 | 595 | 6104 | 27.8 | 601.7 | 76.8 | 5.6 | YKK6301-10 | 800/6000 |
8527 | 24.2 | 641.5 | 87.6 | YKK6301-10 | 800/6000 | |||
9170 | 22.6 | 640.6 | 88.1 | YKK6301-10 | 800/6000 | |||
10690 | 17.3 | 628.8 | 80.1 | YKK6301-10 | 800/6000 | |||
496 | 5088 | 19.3 | 348.2 | 76.8 | 4.3 | YKK5603-12 | 450/6000 | |
7108 | 16.8 | 371.2 | 87.6 | YKK5604-12 | 500/6000 | |||
7644 | 15.7 | 371 | 88.1 | YKK5604-12 | 500/6000 | |||
8911 | 12 | 363.6 | 80.1 | YKK5603-12 | 450/6000 | |||
700DT-A85 | 595 | 5152 | 20.3 | 359.5 | 79.2 | 6.5 | YKK5601-10 | 500/6000 |
6624 | 23.3 | 485.7 | 86.5 | YKK5603-10 | 630/6000 | |||
7360 | 25 | 569.2 | 88 | YKK6301-10 | 800/6000 | |||
8317 | 19.1 | 536.5 | 80.6 | YKK5604-10 | 710/6000 | |||
496 | 4295 | 14.1 | 208.2 | 79.2 | 5 | YKK5601-10 | 500/6000 | |
5522 | 16.2 | 281.5 | 86.5 | YKK5603-10 | 630/6000 | |||
6135 | 17.4 | 330.2 | 88 | YKK6301-10 | 800/6000 | |||
6933 | 13.3 | 311.4 | 80.6 | YKK5604-10 | 710/6000 | |||
700DT-A83 | 596 | 3989 | 30.3 | 414.6 | 79.4 | 7.9 | YKK5602-10 | 560/6000 |
5016 | 27.6 | 441.5 | 85.4 | YKK5602-10 | 560/6000 | |||
5916 | 24.7 | 454.8 | 87.5 | YKK5602-10 | 560/6000 | |||
6953 | 19.4 | 450.7 | 81.5 | YKK5602-10 | 560/6000 | |||
496 | 3319 | 21 | 239.1 | 79.4 | 6 | YKK5004-12 | 315/6000 | |
4175 | 19.1 | 254.3 | 85.4 | YKK5004-12 | 315/6000 | |||
4923 | 17.1 | 262 | 87.5 | YKK5601-12 | 355/6000 | |||
5786 | 13.4 | 259.1 | 81.5 | YKK5601-12 | 355/6000 | |||
700DT-A80 | 594 | 3760 | 26.6 | 328.6 | 82.9 | 7 | YKK5004-10 | 450/6000 |
4757 | 23.2 | 348.7 | 86.2 | YKK5004-10 | 450/6000 | |||
5293 | 21.7 | 355.4 | 88 | YKK5004-10 | 450/6000 | |||
5974 | 18.4 | 355.1 | 84.3 | YKK5004-10 | 450/6000 | |||
脫硫循環(huán)泵性能參數(shù)匯總表(2) | ||||||||
泵型號 | 轉(zhuǎn)速 | 流量 | 揚(yáng)程 | 軸功率 | 效率η | 必需汽蝕 | 配套電機(jī) | |
n | Q | H | Pa | 余量 | ||||
(NPSH)r | 型號 | 功率/電壓 | ||||||
r/min | m3/h | m | Kw | % | m | Kw/V | ||
700DT-A80 | 496 | 3139 | 18.6 | 191.8 | 82.9 | 5.4 | YKK5002-12 | 250/6000 |
3972 | 16.2 | 203.3 | 86.2 | YKK5002-12 | 250/6000 | |||
4420 | 15.1 | 206.5 | 88 | YKK5003-12 | 280/6000 | |||
4988 | 12.9 | 207.9 | 84.3 | YKK5003-12 | 280/6000 | |||
700DT-F78 | 594 | 4693 | 21 | 333.8 | 80.4 | 9.6 | YKK5004-10 | 450/6000 |
6042 | 18.5 | 353.1 | 86.2 | YKK5004-10 | 450/6000 | |||
7221 | 14.9 | 347.6 | 84.3 | YKK5004-10 | 450/6000 | |||
8111 | 12.3 | 332.5 | 81.7 | YKK5004-10 | 450/6000 | |||
496 | 3919 | 14.7 | 195.1 | 80.4 | 7.3 | YKK5002-12 | 250/6000 | |
5045 | 12.9 | 205.6 | 86.2 | YKK5003-12 | 280/6000 | |||
6030 | 10.4 | 202.6 | 84.3 | YKK5002-12 | 250/6000 | |||
6773 | 8.5 | 191.9 | 81.7 | YKK5002-12 | 250/6000 | |||
600DT-A82 | 595 | 3300 | 27.8 | 343.2 | 72.8 | 4 | YKK5601-10 | 500/6000 |
4700 | 24.7 | 358 | 88.3 | YKK5601-10 | 500/6000 | |||
5300 | 21.7 | 362.9 | 86.3 | YKK5601-10 | 500/6000 | |||
5600 | 20.4 | 368.2 | 84.5 | YKK5601-10 | 500/6000 | |||
490 | 2718 | 18.9 | 192.2 | 72.8 | 3 | YKK5003-12 | 280/6000 | |
3871 | 16.8 | 200.6 | 88.3 | YKK5003-12 | 280/6000 | |||
4365 | 14.7 | 202.5 | 86.3 | YKK5003-12 | 280/6000 | |||
4612 | 13.8 | 205.1 | 84.5 | YKK5003-12 | 280/6000 | |||
500DT-A85 | 591 | 2040 | 26.8 | 204.5 | 72.8 | 4.1 | Y450-10 | 250/6000 |
3400 | 24.4 | 266.7 | 84.7 | Y450-10 | 355/6000 | |||
4080 | 22 | 305.2 | 80.1 | Y500-10 | 400/6000 | |||
493 | 1702 | 18.6 | 118.4 | 72.8 | 3.1 | Y450-12 | 220/6000 | |
2836 | 17 | 155 | 84.7 | Y450-12 | 220/6000 | |||
3403 | 15.3 | 177 | 80.1 | Y450-12 | 220/6000 | |||
350DT-A78 | 740 | 1332 | 51.1 | 289.6 | 64 | 6.5 | Y450-8 | 355/6000 |
2431 | 44.5 | 377.7 | 78 | Y500-8 | 500/6000 | |||
2865 | 39.6 | 408.7 | 75.6 | Y500-8 | 500/6000 | |||
590 | 1062 | 32.5 | 146.9 | 64 | 3.5 | Y450-10 | 185/6000 | |
1938 | 28.3 | 191.5 | 78 | Y450-10 | 250/6000 | |||
2284 | 25.2 | 207.3 | 75.6 | Y450-10 | 280/6000 | |||
300DT-A60 | 989 | 1170 | 53.1 | 235.6 | 71.8 | 8.4 | Y400-6 | 315/6000 |
1779 | 47.1 | 281.4 | 81.1 | Y400-6 | 355/6000 | |||
2403 | 36.1 | 313.3 | 75.4 | Y400-6 | 400/6000 | |||
742 | 878 | 29.9 | 99.6 | 71.8 | 4.3 | Y355M1-8 | 132/380 | |
1335 | 26.5 | 118.8 | 81.8 | Y355M2-8 | 160/380 | |||
1803 | 20.3 | 132.2 | 75.4 | Y355M2-8 | 160/380 |