Lyocell纤维生产中高黏度溶液输送管道的伴热设计  

Heat tracing design of high-viscosity solution conveying pipeline for Lyocell fiber production

作　　者：李东坡 王少平 LI Dongpo;WANG Shaoping(Hengtian Heavy Industry Co.,Ltd.,Zhengzhou 450000)

机构地区：[1]恒天重工股份有限公司,河南郑州450000

出　　处：《合成纤维工业》2024年第3期79-82,共4页China Synthetic Fiber Industry

摘　　要：以Lyocell纤维生产中溶液输送管道伴热系统为例,介绍了高黏度溶液输送管道伴热设计的技术要点和设计方法。结果表明:在Lyocell纤维生产过程中,高黏度溶液输送管道采用热水夹套管循环伴热,经板式换热器调温,可保证物料在输送中的最佳特性状态;溶液输送管道的设计包括设备内夹套管的设计和设备外保温供给管的设计;在夹套管的设计过程中,热媒流速应控制在0.5~1.0 m/s,并以此计算出相应的流量及压降;在保温供给管的设计过程中,热媒流速应控制在0.5~1.5 m/s,并以此计算出相应管道规格、流量及压降,以保证溶液的输送温度。Taking the heat tracing system for solution conveying pipeline for Lyocell fiber production as an example,the technical points and design methods of the heat tracing system for high-viscosity solution conveying pipeline were introduced.The results showed that in the production process of Lyocell fibers,the high-viscosity solution conveying pipeline adopted a hot water jacket circulating heat tracing system which was regulated by a plate heat exchanger to ensure the optimal characteristic state of the material during conveying;the design of the solution conveying pipeline includes the design of the inner jacketed pipe and the design of the outer insulation supply pipe;the flow rate of the heat medium should be controlled at 0.5-1.0 m/s in the design of the jacketed pipes,and thus the corresponding flow rate and pressure drop should be calculated;and the flow rate of the heat medium should be controlled at 0.5-1.5 m/s in the design of insulation supply pipes,and thus the corresponding pipeline specifications,flow rate and pressure drop should be calculated to ensure the conveying temperature of the solution.

关 键 词：纤维素纤维 高黏度溶液 溶液输送管道 伴热系统 设计 

分 类 号：TQ341.9[化学工程—化纤工业]