背压式汽轮机它是指:排汽压力大于大气压力的汽轮机称为背压汽轮机。
背压式汽轮机排汽可用于供热或烘干、杀菌等工艺。当背压汽轮机用于供给原有中、低压汽轮机以代替老电厂的中、低压锅炉时,又被称为前置式汽轮机,这样不但可以增加原有电厂的发电能力,而且可以提高原有电厂的热经济性。供热用背压式汽轮机的排汽压力设计值视不同供热目的而定;前置式汽轮机的背压常大于5兆帕,视原有机组的蒸汽参数而定。排汽在供热系统中被利用之后凝结为水,再由水泵送回锅炉作为给水。一般供热系统的凝结水不能全部回收,需要补充给水。
汽轮机结构特征
结构形式:快装多级汽轮机
布置方式:单层或双层
机械调速:分为全液压调节;进口TG系列机械调速器;
电子调速(国产或进口):DEH电液转换调速器、505数字式液压调速器
超速保护:机械式飞锤保护和电磁阀电子智能控制
汽封形式:含铝炭精弹簧补偿无间隙密封、不锈钢片迷宫式汽封、蜂窝式接触式汽封
主汽门:一体化自动主汽门(速关调节组合阀)
主轴总装:复速级叶轮叶片,转子与叶轮过盈套装
润滑系统:油润滑(配套联合润滑油站)
热胀补偿:前轴承支撑为滑动热补偿
电气配置:全套电控柜、保护柜、主控柜、配套国产发电机(电压400-6300-10050V)。
盘车方式:手动
具体参数如下:
型号 | 功率 | 进汽参数 | 排汽压力 | 汽耗Consumption | 本体重量 | 转速 | ||
压力 | 温度 | 进汽量 | ||||||
B0.5-3.43/0.490 | 0.5 | 3.43 | 435 | 7.8 | 0.49 | 15.60 | 5.2 | 6500 |
B0.75-2.35/0.490 | 0.75 | 2.35 | 390 | 13 | 0.49 | 17.33 | 5.2 | 6500 |
B0.75-3.43/0.490 | 0.75 | 3.43 | 435 | 11 | 0.49 | 14.67 | 5.2 | 6500 |
B1.0-2.35/0.490 | 1.0 | 2.35 | 390 | 16.5 | 0.49 | 16.50 | 5.2 | 6500 |
B1.0-3.43/0.490 | 1.0 | 3.43 | 435 | 14.12 | 0.49 | 14.12 | 5.2 | 6500 |
B1.5-2.35/0.294 | 1.5 | 2.35 | 390 | 18.6 | 0.294 | 12.40 | 15.1 | 3000 |
B1.5-2.35/0.490 | 1.5 | 2.35 | 390 | 23.8 | 0.49 | 15.87 | 5.2 | 6500 |
B1.5-2.35/0.490 | 1.5 | 2.35 | 390 | 20.8 | 0.49 | 13.87 | 8.4 | 6500 |
B1.5-2.35/0.785 | 1.5 | 2.35 | 390 | 33 | 0.785 | 22.00 | 13 | 3000 |
B1.5-2.35/0.981 | 1.5 | 2.35 | 390 | 39.8 | 0.981 | 26.53 | 13 | 3000 |
B1.5-2.35/0.294 | 1.5 | 2.35 | 390 | 16.3 | 0.294 | 10.87 | 8.9 | 3000 |
B1.5-3.43/0.490 | 1.5 | 3.43 | 435 | 16.9 | 0.49 | 11.27 | 5.2 | 6500 |
B1.5-3.43/0.686 | 1.5 | 3.43 | 435 | 19.9 | 0.686 | 13.27 | 5.2 | 6500 |
B1.5-3.43/0.8 | 1.5 | 3.43 | 435 | 19.65 | 0.8 | 19.77 | 5.2 | 6500 |
B1.5-3.43/0.981 | 1.5 | 3.43 | 435 | 27.6 | 0.981 | 18.40 | 14.8 | 3000 |
B1.5-3.43/0.981 | 1.5 | 3.43 | 435 | 25.4 | 0.981 | 16.93 | 9.1 | 6500 |
B1.5-3.43/1.27 | 1.5 | 3.43 | 435 | 33.3 | 1.27 | 22.20 | 14.5 | 3000 |
B1.5-3.43/1.27 | 1.5 | 3.43 | 435 | 32.02 | 1.27 | 21.35 | 7.9 | 6500 |
B2.24-2.35/0.3 | 2.24 | 2.35 | 390 | 24.4 | 0.3 | 10.89 | 12.5 | 5600 |
B3-2.35/0.294 | 3 | 2.35 | 390 | 35.2 | 0.294 | 11.73 | 16.3 | 3000 |
B3-2.35/0.490 | 3 | 2.35 | 390 | 42.4 | 0.49 | 14.13 | 16.5 | 3000 |
B3-3.43/0.294 | 3 | 3.43 | 435 | 27.3 | 0.294 | 9.10 | 18.5 | 3000 |
B3-3.43/0.490 | 3 | 3.43 | 435 | 32.2 | 0.49 | 10.73 | 17.9 | 3000 |
B3-3.43/0.785 | 3 | 3.43 | 435 | 42.8 | 0.785 | 14.27 | 16.7 | 3000 |
B3-3.43/0.981 | 3 | 3.43 | 435 | 48.1 | 0.981 | 16.03 | 17.2 | 5600 |
B3-3.43/0.981 | 3 | 3.43 | 435 | 48 | 0.981 | 16.00 | 18.9 | 3000 |
B3-3.43/1.57 | 3 | 3.43 | 435 | 80.1 | 1.57 | 26.70 | 12.8 | 3000 |
B3-4.90/0.294 | 3 | 4.9 | 470 | 25 | 0.294 | 8.33 | 21.8 | 3000 |
B3-4.90/0.981 | 3 | 4.9 | 435 | 43 | 0.981 | 14.33 | 20.8 | 3000 |
B3.4-3.09/1.9 | 3.4 | 3.09 | 347 | 152.1 | 1.9 | 44.74 | 39 | 3000 |
B4-2.35/0.49 | 4 | 2.35 | 390 | 55.9 | 0.49 | 13.98 | 18 | 3000 |
B4-2.35/0.981 | 4 | 2.35 | 390 | 100.5 | 0.981 | 25.13 | 12.8 | 3000 |
B4-3.43/0.49 | 4 | 3.43 | 435 | 48.5 | 0.49 | 12.13 | 18 | 3000 |
B4-3.43/0.981 | 4 | 3.43 | 435 | 69 | 0.981 | 17.25 | 17 | 3000 |
B4-3.43/1.27 | 4 | 3.43 | 435 | 88.2 | 1.27 | 22.05 | 20.5 | 3000 |
B4-4.9/0.490 | 4 | 4.9 | 435 | 40 | 0.49 | 10.00 | 18.2 | 3000 |
B4-4.9/0.981 | 4 | 4.9 | 435 | 54 | 0.981 | 13.50 | 20.8 | 3000 |
B4-4.9/1.27 | 4 | 4.9 | 435 | 67.9 | 1.27 | 16.98 | 19.7 | 3000 |
B5-2.35/0.49 | 5 | 2.35 | 390 | 68 | 0.49 | 13.60 | 13.5 | 3000 |
B5-2.35/0.981 | 5 | 2.35 | 390 | 123.8 | 0.981 | 24.76 | 15.3 | 3000 |
B5-3.43/0.49 | 5 | 3.43 | 435 | 54.3 | 0.49 | 10.86 | 18 | 3000 |
B5-3.43/0.981 | 5 | 3.43 | 435 | 81 | 0.981 | 16.20 | 21.2 | 3000 |
B5-3.43/1.27 | 5 | 3.43 | 435 | 101.6 | 1.27 | 20.32 | 16.1 | 3000 |
B5-4.9/0.49 | 5 | 4.9 | 435 | 49.6 | 0.49 | 9.92 | 21 | 3000 |
B5-4.9/0.981 | 5 | 4.9 | 435 | 66.8 | 0.981 | 13.36 | 19.7 | 3000 |
B5-4.9/1.27 | 5 | 4.9 | 435 | 76.4 | 1.27 | 15.28 | 19.1 | 3000 |
B6-2.35/0.294 | 6 | 2.35 | 390 | 62.1 | 0.294 | 10.35 | 16.3 | 3000 |
B6-2.35/0.490 | 6 | 2.35 | 390 | 76 | 0.49 | 12.67 | 16.6 | 3000 |
B6-3.43/0.294 | 6 | 3.43 | 435 | 54.1 | 0.294 | 9.02 | 18 | 3000 |
B6-3.43/0.490 | 6 | 3.43 | 435 | 63.8 | 0.49 | 10.63 | 18 | 3000 |
B6-3.43/0.686 | 6 | 3.43 | 435 | 75.8 | 0.686 | 12.63 | 16 | 3000 |
B6-3.43/0.981 | 6 | 3.43 | 435 | 93.6 | 0.981 | 15.60 | 16 | 3000 |
B6-3.43/1.27 | 6 | 3.43 | 435 | 118.6 | 1.27 | 19.77 | 16.1 | 3000 |
B6-4.90/0.490 | 6 | 4.9 | 435 | 55.2 | 0.49 | 9.20 | 21.6 | 3000 |
B6-4.90/0.785 | 6 | 4.9 | 435 | 67.2 | 0.785 | 11.20 | 20.8 | 3000 |
B6-4.90/0.981 | 6 | 4.9 | 435 | 78.15 | 0.981 | 13.03 | 21.2 | 3000 |
B6-4.90/1.18 | 6 | 4.9 | 435 | 82.2 | 1.18 | 13.70 | 21.2 | 3000 |
B6-4.90/1.96 | 6 | 4.9 | 435 | 128.2 | 1.96 | 21.37 | 18 | 3000 |
B6-5.88/0.981 | 6 | 5.88 | 435 | 68.4 | 0.981 | 11.40 | 25.1 | 3000 |
B6-8.83/3.6 | 6 | 8.83 | 535 | 111 | 3.6 | 18.50 | 50.5 | 3000 |
B7-3.43/(0.981)/0.490 | 7 | 3.43 | 435 | 75.8 | 0.49 | 10.83 | 13.5 | 3000 |
B7.5-3.43/1.08 | 7.5 | 3.43 | 435 | 124 | 1.08 | 16.53 | 13.5 | 3000 |
B7.5-4.90/0.981 | 7.5 | 4.9 | 470 | 89.5 | 0.981 | 11.93 | 20 | 3000 |
B12-3.43/0.49 | 12 | 3.43 | 435 | 116 | 0.49 | 9.67 | 42.5 | 3000 |
B12-3.43/0.785 | 12 | 3.43 | 435 | 147 | 0.785 | 12.25 | 21 | 3000 |
B12-3.43/0.981 | 12 | 3.43 | 435 | 176 | 0.981 | 14.67 | 17.5 | 3000 |
B12-4.90/0.490 | 12 | 4.9 | 435 | 104 | 0.49 | 8.67 | 44.5 | 3000 |
B12-4.90/0.686 | 12 | 4.9 | 435 | 120 | 0.686 | 10.00 | 44.5 | 3000 |
B12-4.90/0.981 | 12 | 4.9 | 435 | 146 | 0.981 | 12.17 | 44.5 | 3000 |
B12-4.90/1.27 | 12 | 4.9 | 435 | 175.1 | 1.27 | 14.59 | 39 | 3000 |
B12-8.83/0.785 | 12 | 8.83 | 535 | 95 | 0.785 | 7.92 | 60 | 3000 |
B12-8.83/4.12 | 12 | 8.83 | 535 | 248 | 4.12 | 20.67 | 48.5 | 3000 |
B15-1.96/0.147 | 15 | 1.96 | 340 | 128.5 | 0.147 | 8.57 | 42 | 3000 |
B15-3.43/0.294 | 15 | 3.43 | 435 | 117 | 0.294 | 7.80 | 42 | 3000 |
B15-4.90/(0.981)/0.294 | 15 | 4.9 | 435 | 111 | 0.294 | 7.40 | 42 | 3000 |