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暖通空调>期刊目次>2021年>第10期

动力分布式通风系统支路风机风量自适应性能测试与分析

Self-adaptive performance test and analysis of branch fan air volume in dynamic distributed ventilation systems

居发礼[1] 黄 雪[1] ] 邓福华[2] 闫 润[2]
[1]重庆科技学院 [2]重庆海润节能技术股份有限公司

摘要:

对动力分布式通风系统中的自适应支路风机进行了单机性能和系统联动调节测试,结果显示,自适应支路风机在一定的入口压力范围内具有稳定支路风量的能力,且该入口压力范围随着风机挡位的降低而变窄,在系统运行中主风机和其他支路风机的调节对其风量变化的影响较小,呈现了较好的风量自适应管网特性和风量抗干扰能力。分析了支路风机在动力分布式通风系统中运行的水力工况特性,提出了自适应支路风机的性能表征参数及工程设计应用方法。

关键词:动力分布式通风系统,支路风机,自适应,风机性能,管网特性,抗干扰能力

Abstract:

Tests the self-adaptive branch fan performance in the dynamic distributed ventilation system for its stand-alone performance and system linkage adjustment. The results show that the self-adaptive branch fan has the ability to stabilize the branch air volume within a certain inlet pressure range, and the pressure range becomes narrow with the reduction of fan control gear. During system operation, the adjustment of the main fan and other branch fans has little effect on the change of air volume, showing better air volume self-adaptive pipe network characteristics and air volume anti-interference ability. Analyses the hydraulic operating characteristics of the branch fan in the dynamic distributed ventilation system, and proposes the performance characterization parameters and engineering design application methods of the self-adaptive branch fan.

Keywords:dynamicdistributedventilationsystem,branchfan,self-adaption,fanperformance,pipenetworkcharacteristic,anti-interferenceability

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