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- W2378611831 abstract "This paper aims to solve the problem of the uneven distribution of the airflow in the wet gas desulfurization tower on the basis of our former research,i. e. the new-type invertedV-shaped airflow distribution board proposed for the uniformly distributed airflow. In comparison with other types of the airflow distribution ones,the invertedV-shaped airflow distribution board enjoys the following advantages,such as simple in structure,flexible in layout and easy in maintenance. In this paper,we would like to endow the inverted V-shaped airflow distribution board with three porosities,that is,those of 40%,50% and 60% to be installed in the desulfurization tower between the inlet and the spray layer. It is just for this purpose that we have conducted a numerical simulation of the airflow field,the temperature field and the pressure field in the desulfurization tower with two layers sprayed with the software named CFX. It means to say that we would like to simulate the inverted V-shaped airflow distribution boards with different porosities and with no airflow distribution board in the said tower,respectively. The results of our simulation show that the airflow and temperature in the tower without the airflow distribution board are unevenly distributed and the standard speed variance of the cross section can be as high as up to 2. 024. When the inverted V -shaped airflow distribution boards are installed,the airflow can be made remarkably improved with the standard speed variance of the cross section reduced to 1. 1. Furthermore,it would be possible to make the internal temperature distribution in the tower uniformly distributed.In so doing,it would be possible to increase the contact area and the residence time between the gas and the slurry,which is conductive to the heat and mass transfer in the gas-liquid phases.Furthermore,the differential pressure in the tower with the inverted airflow distribution board with the porosity of 50% and 60%can be made almost the same as the desulfurization tower with no airflow distribution board at all. The comprehensive analysis on the above said items proves more idealistic to keep the porosity of airflow distribution board at about 50%,which helps to improve the desulfurization efficiency remarkably. And,in turn,the application can effectively reduce the ammonia escape in the ammonia desulfurization system." @default.
- W2378611831 created "2016-06-24" @default.
- W2378611831 creator A5025329094 @default.
- W2378611831 date "2015-01-01" @default.
- W2378611831 modified "2023-09-25" @default.
- W2378611831 title "Numerical simulation of the uniformly distributed airflow in the desulfurization tower" @default.
- W2378611831 hasPublicationYear "2015" @default.
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