大口径流量测量现状与问题综述研究  

Review of the Problems with Large-diameter Flow Measurement

作　　者：蔡锋[1] 何文仲 刘娜 李春燕 李勇 张晓东 肖入峰[1] CAI Feng;HE Wenzhong;LIU Na;LI Chunyan;LI Yong;ZHANG Xiaodong;XIAO Rufeng(Chongqing Academy of Environmental Science, Chongqing 401147, China;Chongqing Zhongjue Zhengqi Flow Meter Co. , Ltd. , Chongqing 401123, China;Chongqing Science and Technology Research Institute, Chongqing 401123, China)

机构地区：[1]重庆市环境科学研究院,重庆401147 [2]重庆中珏正奇流量仪表有限公司,重庆401123 [3]重庆市科学技术研究院,重庆401123

出　　处：《环境影响评价》2019年第1期68-71,共4页Environmental Impact Assessment

基　　金：重庆市渝北区科技计划项目[2017(工业)15]

摘　　要：多年来,国内外对于大口径气体流量测量技术进行不断有益探索,大口径气体流量测量仍然面对诸多困难:工艺管道形状多管径大,需要各种规格形状的标定设备;在工程使用中常遇见仪表上游直管段不足;介质含尘、含水造成仪表堵塞,导致仪表可靠性不高。上述问题已成为影响流量测量精度的瓶颈,至今还没有得到良好解决,因此现实产品精度不高,可靠性差。In the past few years, large-diameter gas flow measurement technology has seen a continuous exploration both at home and abroad, but difficulties still exist. For instance, process piping has multiple options on its shape which requires calibration equipment with various shapes and sizes. The upstream pipe section of the instrument is often insufficient. Dust and water often clogs the instrument, lowering its reliability. All the problems above have become the bottleneck affecting the accuracy of flow measurement, and have not been well solved so far. It is an indisputable fact that the existing products are still inaccurate and have poor reliability.

关 键 词：大口径 流量测量 综述 

分 类 号：X851[环境科学与工程—环境工程]