Open AccessDesign and experimental study of a new type of 45° overflow falling film distributor
Author(s) -
Gong Ciji,
Xuesheng Wang,
Qinzhu Chen
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1676/1/012080
Subject(s) - distributor , body orifice , flow coefficient , tube (container) , falling (accident) , materials science , mechanics , volumetric flow rate , flow (mathematics) , discharge coefficient , orifice plate , fiber , flow measurement , composite material , simulation , mechanical engineering , engineering , physics , medicine , environmental health , nozzle
A petrochemical acrylic fiber factory introduced a set of acrylic fiber device in the 1980s. Among them, the evaporation device used for solvent recovery of acrylic fiber appeared to be difficult to heat exchange in the tube. In order to solve the problem, we designed a new 45° overflow falling film distributor device and an experimental system for single tube. The effects of flow rate, liquid level and orifice flow coefficient were investigated experimentally. The results show that the correlation between the orifice flow coefficient and the structure size of the fabric determines the film formation effect. When the flow rate of the single tube is constant, the absolute error of the orifice flow coefficient does not exceed 9%. Therefore, the orifice flow coefficient proposed in this experiment is a good guide to the optimal design of the fabric size.