Sulfur dioxide desulfurization technology for pipe pile steam maintenance residual heat utilization and reutilization

Abstract

The invention discloses a sulfur dioxide desulfuration technology through utilizing and recycling the afterheat from tubular pile pressure steam maintenance, which includes the steps of conducting the high-temperature residual steam and high-temperature condensation water in a pressure steam boiler into a pressure gas tank for flash evaporation, conducting the flash-evaporated steam into a steaming pool or another pressure steam boiler to recycle the residual steam, preheating the boiler water by the recycled residual steam in the steaming pool and by the high-temperature condensation water through a heat exchange system, and conducting the preheated condensation water into the water-film de-duster of the boiler to recycle the counteraction between the sulfur dioxide in the fumes and condensation water. The technology makes reasonable use of the high-temperature condensation water and the residual steam, adopts flash evaporation technology and reasonable process, realizes high recycling rate, and after recycling the residual steam, carries out de-dusting and desulfurization of the fumes from a coal burning boiler by utilizing the high pH value of the condensation water, thus reducing environmental pollution, simplifying the equipment, lowering the cost and producing significant economic benefits and environmental protection effects.

Description

technical field [0001] The invention belongs to the field of comprehensive utilization of waste energy and waste heat and environmental protection engineering, and more specifically relates to a technology for recycling waste heat and waste steam of high-temperature condensed water and reusing sulfur dioxide desulfurization for pipe pile pressure steaming maintenance. Background technique [0002] High-temperature and high-pressure equipment is used in many industries such as the chemical industry and manufacturing industry, but the high-temperature condensed water produced is discharged as waste, which not only wastes a lot of energy, but also causes certain pollution to the environment. There is also recycling of high-temperature condensed water, but the reuse of cooled condensed water, especially to remove sulfur dioxide in flue gas, has not yet seen relevant reports at home and abroad. This technology utilizes the specific water quality of the condensed water in the pipe...

AI Technical Summary

Problems solved by technology

This technology utilizes the specific water quality of the condensed water in the pipe pile industry to carry out two utilizations of waste heat recovery and pollution control, and no such report has been seen.

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