基于CFD的JWF1217型梳棉机滤尘管道气流分析  

Analysis of dust filtration pipeline of JWF1217 carding machine based on CFD

作　　者：李秋英 邢明杰[1] 倪敬达 任光业 李梦晗 Li Qiuying;Xing Mingjie;Ni Jingda;Ren Guangye;Li Menghan(Qingdao University,Qingdao,226071,China;Jiangnan University,Wuxi,214122,China;Qingdao Hongda Textile Machinery Co.,Ltd.,Qingdao,266101,China)

机构地区：[1]青岛大学,山东青岛226071 [2]江南大学,江苏无锡214122 [3]青岛宏大纺织机械有限责任公司,山东青岛266101

出　　处：《棉纺织技术》2024年第3期76-81,共6页Cotton Textile Technology

摘　　要：为了探究JWF1217型梳棉机滤尘管道内风量风压分布的合理性,建立了管道流体域模型,基于计算流体动力学(CFD)理论,采用标准k-ε湍流模型对其进行数值模拟,并根据计算结果分析管道内速度场和压力场分布。模拟结果表明:在主管道吸口800 Pa负压吸风条件下,管道内气流流动顺畅,仅在梳棉机拐角处和管道连接处出现少量涡流;管道内压力分布合理,能量消耗少,负压利用率高;各吸风点的风量风压分配符合实际生产要求。认为:JWF1217型梳棉机滤尘管道结构能合理分配气流,主管道拐角处采用大圆弧平滑过渡气流,主、支管道连接处采用主管道尾端渐宽结构,有效减小压力损失和能量消耗,有效提高了滤尘管道的吸尘能力。In order to investigate the reasonableness of the air volume and pressure distribution in the dust filteration pipeline of JWF1217 carding machine,the fluid domain model of the pipeline was established,based on the theory of Computational Fluid Dynamics(CFD),the standard k-εturbulence model was used for numerical simulation,and the distribution of velocity and pressure fields in pipeline was analyzed according to calculation results.Simulation results showed that in the main pipeline suction mouth 800 Pa negative pressure suction conditions,the air flow in the pipeline was smooth,only in the carding machine corners and pipeline connections appeared a small amount of vortex.Pipeline pressure distribution was reasonable,energy consumption was small,the negative pressure utilization rate was high.Wind volume and wind pressure distribution of each suction point were accordance with the requirements of the actual production.It is considered that dust filtration pipeline structure of JWF1217 carding machine can reasonably distribute the airflow,the main pipeline corner adopts large arc smooth transition airflow,the main and branch pipeline connection adopts the main pipeline end of the gradient structure,the pressure loss and energy consumption are effectively reduced,the dust suction capacity of the dust filtration pipeline can be effectively improved.

关 键 词：梳棉机 滤尘管道 计算流体动力学 数值模拟 气流 风量 风压 

分 类 号：TS101.2[轻工技术与工程—纺织工程]