| 宽幅挖藕机多喷头出水均匀性仿真分析 |
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| 引用本文： | 曹威龙,周扬理,岳吉祥,王国栋. 宽幅挖藕机多喷头出水均匀性仿真分析[J]. 农业装备与车辆工程, 2020, 58(6): 30-32,48 |
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| 作者姓名： | 曹威龙 周扬理 岳吉祥 王国栋 |
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| 作者单位： | 257061 山东省东营市 中国石油大学胜利学院机械与控制工程学院;257061 山东省东营市 中国石油大学胜利学院机械与控制工程学院;257061 山东省东营市 中国石油大学胜利学院机械与控制工程学院;257061 山东省东营市 中国石油大学胜利学院机械与控制工程学院 |
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| 基金项目： | 2019年山东省农业重大应用技术创新项目"莲藕高效智能采收关键技术与装备研制";中国石油大学胜利学院春晖重大项目"全液压驱动履带式智能莲藕采收装置设计与应用研究" |
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| 摘 要： | 针对单塘面积大、藕塘密集的地区设计了一种作业幅宽为4m的水射流式莲藕采挖机。由于宽幅挖藕机水管道分支较多,易出现各喷头出水压力不均匀现象,导致莲藕漏采、受损。基于Fluent对挖藕机水管道进行了仿真分析,发现调整喷头间距不能有效降低压力波动,而通过调整喷头出口截面直径可显著改善喷头出水压力均匀性,出水压力波动范围由0.36MPa降低到0.18MPa,为宽幅水射流式挖藕机的喷头、射流系统的设计提供了参考。
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| 关 键 词： | 挖藕机 宽幅 喷头 水流均匀性 仿真 |
Simulation Analysis of Flow Uniformity at Width Lotus Root Digging Machine Multi-nozzle |
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| Cao Weilong,Zhou Yangli,Yue Jixiang,Wang Guodong. Simulation Analysis of Flow Uniformity at Width Lotus Root Digging Machine Multi-nozzle[J]. Agricultural Equipment & Vehicle Engineering, 2020, 58(6): 30-32,48 |
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| Authors: | Cao Weilong Zhou Yangli Yue Jixiang Wang Guodong |
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| Affiliation: | (School of Mechanical and Control Engineering,Shengli College,China University of Petroleum,Dongying City,Shandong Province 257061,China) |
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| Abstract: | A water jet lotus root digging machine with a width of 4 m is designed based on large single pond area.The phenomenon of nonuniform outlet water pressure exists due to many embranchments of width lotus root digging machine.This will cause unpicking and injury of lotus root.The multi-nozzle structure of lotus root is simulated and optimized based on Fluent.According to simulation results,the fluctuation about nozzle outlet pressure can be improved by adjusting the diameter of nozzle outlet rather than adjusting the distance between nozzles.The fluctuation range about nozzle outlet pressure is decreased from 0.36 MPa to 0.18MPa.This paper provides reference for the design of nozzle and jet system of width water jet lotus digging machine. |
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| Keywords: | lotus root digging machine width nozzle flow uniformity simulation |
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