一种用于缺水地区的湿法脱硫烟气水分回收系统

Abstract

本实用新型公开了一种用于缺水地区的湿法脱硫烟气水分回收系统，包括湿法脱硫塔、闪蒸罐、凝汽器和乏汽凝结水箱；其中，湿法脱硫塔的顶部设置有第一喷淋层，塔釜和第一喷淋层之间通过浆液循环泵和第一管道连通；闪蒸罐中设置有第二喷淋层，第一管道通过第二管道与第二喷淋层连通，第二管道上设置有第一浆液切换阀；闪蒸罐的底部通过第三管道与第一管道连通，第三管道上设置有返回泵和第二浆液切换阀；第二管道与第一管道的连接点、第三管道与第一管道的连接点，第一管道位于两连接点之间的区域设置有第三浆液切换阀。本实用新型的系统简单，不需要热泵等设备，不需要消耗高品质能源，系统造价低，运行成本低。

Claims

1. A wet flue gas desulfurization water recovery system for water deficient areas, characterized by: This includes a wet desulfurization tower, flash tank, condenser, and exhaust steam condensate tank; among which, The top of the wet desulfurization tower is equipped with a first spray layer, and the tower bottom and the first spray layer are connected by a slurry circulation pump and a first pipeline; A second spray layer is provided in the flash tank, and the first pipe is connected to the second spray layer through the second pipe. A first slurry switching valve is provided on the second pipe. The bottom of the flash tank is connected to the first pipe through a third pipe, and a return pump and a second slurry switching valve are installed on the third pipe; The connection points between the second and first pipelines, the connection points between the third and first pipelines, and the area between the two connection points of the first pipeline are equipped with a third slurry switching valve.

2. The wet flue gas desulphurization water recovery system for water deficient areas as claimed in claim 1 wherein: The wet desulfurization flue gas moisture recovery system also includes a condenser, which is connected to the gas outlet of the flash tank. In the condenser, cooling water is used to cool and condense the gas.

3. The wet flue gas desulphurization water recovery system for water deficient areas as claimed in claim 2 wherein: It also includes a waste steam condensate tank, which is connected to the outlet of the condenser.

4. The wet flue gas desulphurization water recovery system for water deficient areas as claimed in claim 3 wherein: The waste steam condensate tank is equipped with a top cover.

5. The wet flue gas desulphurization water recovery system for water deficient areas as claimed in claim 3 wherein: The waste steam condensate tank is also equipped with a water supply pipe.

6. The wet flue gas desulphurization water recovery system for water deficient areas as claimed in claim 3 wherein: It also includes a cooling tower, the inlet of which is connected to the outlet of the exhaust steam condensate tank, and the outlet of which is connected to the inlet of the cooling water channel of the condenser.

7. The wet flue gas desulphurization water recovery system for water deficient areas as claimed in claim 6 wherein: The cooling tower is equipped with a level gauge.

8. The wet flue gas desulphurization water recovery system for water deficient areas as claimed in claim 1 wherein: The cooling water outlet of the condenser is connected to the cooling tower.

9. The wet flue gas desulphurization water recovery system for water deficient areas as claimed in claim 6 wherein: It also includes a non-condensable gas cooler, which is connected to the gas outlet of the condenser and the cooling tower respectively, and is used to cool the non-condensable gas.

10. The wet flue gas desulphurization water recovery system for water deficient areas as claimed in claim 9 wherein: The cooling channel outlet of the non-condensable gas cooler is connected to the cooling tower.

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