Numerical simulation and experimental study of the influence of disk groove structure optimization on the air film flow field signature of an air-cushion sandwich belt conveyor

IF 6.4 2区工程技术 Q1 THERMODYNAMICS Case Studies in Thermal Engineering Pub Date : 2024-10-02 DOI:10.1016/j.csite.2024.105239

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Abstract

A new type of disk groove mechanism was developed and manufactured. The effects of the structural and operating factors of the disk groove on the air film loading performance were examined using single factor and orthogonal experimental methods. The results of numerical simulation and experimental studies showed that the air film loading performance correlated positively with the orifice diameter and inlet pressure, with the orifice spacing and diameter having the most significant effects, and that the belt speed boosted the air film uniformity. Meanwhile, a comparative analysis of the corresponding level values showed that an air film thickness of 0.8 mm, orifice diameter of 5 mm, orifice spacing of 30 mm, inlet pressure of 8000 Pa, and conveyor speed of 5 m/s were the optimal parameter combinations for the maximum loading capacity. To verify the accuracy of the model, a field experiment was conducted at Jiangmen Southern Conveying Machinery Engineering Co., Ltd. The air film pressure at the experimental position matched the numerical simulation results. In addition, when the number of rows was one and the air volume was 10 m³/h, the smallest value of traction resistance was obtained under minimum power consumption.

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盘槽结构优化对气垫式夹层带式输送机气膜流场特征影响的数值模拟和实验研究

开发并制造了一种新型盘槽机构。采用单因素和正交实验方法研究了盘槽的结构和运行因素对气膜加载性能的影响。数值模拟和实验研究结果表明，气膜加载性能与孔口直径和入口压力呈正相关，其中孔口间距和直径的影响最为显著，皮带速度提高了气膜的均匀性。同时，相应水平值的对比分析表明，0.8 毫米的气膜厚度、5 毫米的气孔直径、30 毫米的气孔间距、8000 帕的入口压力和 5 米/秒的传送带速度是获得最大装载量的最佳参数组合。为验证模型的准确性，在江门南方输送机械工程有限公司进行了现场实验。实验位置的气膜压力与数值模拟结果相符。此外，当排数为一排、风量为 10 m3/h 时，在耗电量最小的情况下，获得了最小的牵引阻力值。

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来源期刊

Case Studies in Thermal Engineering Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

8.60

自引率

11.80%

发文量

812

审稿时长

76 days

期刊介绍： Case Studies in Thermal Engineering provides a forum for the rapid publication of short, structured Case Studies in Thermal Engineering and related Short Communications. It provides an essential compendium of case studies for researchers and practitioners in the field of thermal engineering and others who are interested in aspects of thermal engineering cases that could affect other engineering processes. The journal not only publishes new and novel case studies, but also provides a forum for the publication of high quality descriptions of classic thermal engineering problems. The scope of the journal includes case studies of thermal engineering problems in components, devices and systems using existing experimental and numerical techniques in the areas of mechanical, aerospace, chemical, medical, thermal management for electronics, heat exchangers, regeneration, solar thermal energy, thermal storage, building energy conservation, and power generation. Case studies of thermal problems in other areas will also be considered.