All-season white smoke eliminating and smoke waste heat deep recycling system

Abstract

The invention discloses an all-season white smoke eliminating and smoke waste heat deep recycling system. White smoke elimination, dust haze removal, waste heat recycling, desulfurization, water saving and other effects are achieved through a smoke reheater, a smoke deep cooler, a smoke condenser, a demister, a smoke preheater and other devices. According to the all-season white smoke eliminatingand smoke waste heat deep recycling system, influence factors of the severity degree of the wet smoke plume, the atmospheric temperature, the humidity, the original smoke temperature and the like, theload-adjustable all-season smoke white eliminating system is formed, and waste heat recycling is considered while white smoke is eliminated. According to the smoke waste heat recycling system, the heat transfer efficiency is enhanced through strengthening measures such as gas rotational flow, high-thermal-conductivity heat pipes, fluoroplastic pipe bundles, adjusting water preheating and jackets,the heat loss is reduced, and the high waste heat recycling efficiency is achieved. The heat pump is adopted to effectively utilize low-temperature waste heat of smoke, and smoke heat is recycled tothe maximum extent for heat supply in combination with smoke waste heat of a smoke cooling section.

Description

technical field [0001] The invention relates to the field of energy and environmental protection, and specifically relates to an all-season flue gas whitening and flue gas waste heat deep recovery system applied to the fields of flue gas whitening and flue gas waste heat deep recovery and utilization. Background technique [0002] Industrial boiler flue gas is saturated wet flue gas after wet desulfurization treatment, and the flue gas usually carries a large amount of particulate matter, sulfur oxides, nitrogen oxides, heavy metals and other pollutants into the atmosphere. During the discharge of wet flue gas, when the atmospheric temperature is lower than the flue gas temperature, water vapor condenses into liquid droplets, and the condensation accelerates the accumulation of pollutants, forming haze under photochemical action. Droplets of different scales are refracted and scattered in the atmosphere, presenting a white or off-white "wet plume" (commonly known as "big whi...

AI Technical Summary

Problems solved by technology

The condensed water in the saturated wet flue gas cooling process contains a large amount of sulfuric acid, nitric acid, salt and particulate matter. The pH of the solution is usually 2~3. Conventional heat exchangers often fail to reach the preset target, and problems such as corrosion and wear occur.

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