Optimization of Nozzle Design for Pulse Cleaning of Ceramic Filter

作     者：迟化昌 于亮 崔柱洪 姬忠礼 CHI Huachang;YU Liang;CHOI Joo-Hong;JI Zhongli

作者机构：Department of Mechanical and Electrical Engineering China University of Petroleum Beijing 102249 China Department of Chemical and Biological Engineering Gyeongsang National University Jinju 660-701 South Korea 

基　　金：Supported by the National Natural Science Foundation of China (50411140527) and Korea Science and Engineering Foundation 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2008年第16卷第2期

页      码：306-313页

摘      要：The experimental study was carried out to optimize the nozzle shape and dimension for the pulse cleaning of a ceramic filter candle. A bench scale unit of ceramic filter consisting of four commercial filter elements was used to measure the traces of the transient pressure around the nozzle and the overpressure in the filter cavity during the pulse-jet injection of pulse gas. Overpressure in the filter cavity is related to the pulse cleaning force. Nozzle design is concerned to increase the overpressure at the open end of filter element of pulse cleaning inlet, as well as to minimize the consumption of pulse gas. Convergent nozzle induces more secondary flow and generates higher pulse cleaning effect than straight nozzle. Nozzles of different convergent ratio （ratio of outlet to inlet diameter of nozzle） by changing the convergent angle and height were tested. The outlet diameter of convergent nozzle seriously influences the cleaning effect. The optimum convergent ratio increases with the increase of pulse gas pressure The nozzle position （distance of nozzle tip from the open end of filter inlet） is also important to decide the nozzle dimension. Nozzle of large outlet diameter accepts high pressure of pulse gas to provide large overpressure in the filter cavity of top position by applying long distance.

主 题 词：nozzle ceramic filter pulse cleaning 

学科分类：08[工学] 0805[工学-能源动力学] 080502[080502] 

核心收录：

D　O　I：10.1016/S1004-9541(08)60079-8

馆 藏 号：203881425...