A kind of denitrification system and method

Abstract

The invention discloses a denitrification system. The denitrification system comprises a liquid storage device, a pump, a cavitation reactor group and a gas-liquid separator, wherein a suction filter is arranged in the liquid storage device and sequentially communicated with the cavitation reactor group through the pump and a valve I; a smoke suction pipe is arranged on the cavitation reactor group communicated with the gas-liquid separator; an exhaust pipe and a liquid discharge pipe are arranged on the gas-liquid separator; the liquid discharge pipe has a U-type bend; a valve III, a liquid supplement valve and a liquid level detection electrode for controlling the liquid supplement valve to be opened and closed are arranged on the liquid storage device. A cavitation reaction is taken as a core treatment technique, chemicals for denitrification treatment can be greatly reduced or can be even not added at all, the effect is good, operation of equipment is simple, a method is easy to implement, the system is stable and reliable, the structure is simple, a few of moving parts are required, the size of equipment is small, and the denitrification effect can be 80% or above. A flue gas desulfurization mechanism is similar to the denitrification mechanism, the reaction is easy to proceed, and accordingly, the denitrification system aimed at denitrification also has a desulfurization effect.

Description

technical field [0001] The invention relates to a denitrification system and method, in particular to a ship flue gas denitrification system and method, and belongs to the field of energy conservation and environmental protection. Background technique [0002] Air pollution is getting worse, especially in developing countries. Due to the requirements of economic development, it is necessary to consume a large amount of fossil fuels, and at the same time produce a large amount of industrial waste gas, resulting in serious air pollution. Due to the backward technology, there is a lack of advanced technology in tail gas treatment and pollution control, which further aggravates the pollution. According to statistics, in 2015, the smog days in Beijing lasted for half a year, and the number of heavy pollution days exceeded one month. Currently, air pollution is already a serious national problem in China. [0003] With the continuous deterioration of air pollution, human beings...

AI Technical Summary

Problems solved by technology

The realization of this patent is based on the reasonable combination of the respective principles of desulfurization and denitrification. The processing technology and equipment size cannot be effectively reduced, and the equipment cost and operating cost are relatively high.

In addition, diesel engine combustion technologies that reduce nitrogen oxides, such as stratified combustion and exhaust gas recirculation, fuel emulsification, and fuel injection technology, have also undergone in-depth research in terms of combustion mechanism, but most of these technologies are based on the premise of sacrificing combustion efficiency. Economical is not high

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