Entrainment performance of Y-type guided fixed valve tray

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Abstract Using the air-water system, the entrainment performance of Y-type guided fixed valve tray was studied in a plexiglass cold mold tower with diameter of 1.2 m, plate spacing of 0.45 m and four trays inside. The effects of changing three outlet weir heights, three liquid flow intensities and two opening rates on the entrainment performance of Y-type guided fixed valve tray were investigated, and the experimental results were compared with the sieve trays. The results show that the entrainment performance of Y-type guided fixed valve tray has a stable regularity with the increase of the valve hole kinetic energy factor, and it performs better under low weir height and low liquid flow intensity. Compared with the sieve tray, the structure of Y-type guided fixed valve shows obvious advantages of anti-entrainment and has a higher upper limit of gas phase load operation. The model correlation formula of entrainment rate of Y-type guided fixed valve tray with two kinds of opening rate was obtained by fitting the experimental data, which can provide reference for the design of subsequent trays and the separation of high viscosity system.

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	Articles by authors
	YUE Xirong
	ZHAO Pei
	LU Kuanhua
	NIU Jinglong

Keywords： guided fixed valve tray sieve tray entrainment model correlation formula flooding gas velocity

Received 2021-12-28;

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YUE Xirong, ZHAO Pei, LU Kuanhua, NIU Jinglong.Entrainment performance of Y-type guided fixed valve tray[J] Chemcial Industry and Engineering, 2023,V40(4): 94-101

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