热水储能罐运行状态健康监测的方案设计及工程实践

Scheme Design of Health Monitoring on Operation Status for a Hot Water Energy Storage Tank and Engineering Practice

热水储能罐作为再生能源灵活的储存结构,其安全性有着重大的意义。为了检验储能罐设计的合理性及其运行过程中的安全性,进行现场应变和温度采集;健康监测的设计方案在整个监测过程中尤为重要,基于通辽热水储能罐项目,结合其工程实际情况设计合理监测方案,根据采集数据处理结果,可以得到罐壁沿高度方向的应力分布及温度变化情况,以及温度对测点位置应变的影响。通过将应力实测值与有限元模拟结果进行对比,验证了理论分析的正确性和监测方案的合理性,并针对非锚固立式储罐模型的建立提出了建议。

As an indispensable storage structure for renewable energy,the safety of hot water storage tank is of great significance.In order to test the rationality of the tank design and the safety of the tank during operation,the field strain and temperature are collected.The design scheme of health monitoring is particularly important in the whole monitoring process.Based on the Tongliao hot water storage engery tank project,combined with the actual situation of the project,a reasonable monitoring scheme was designed,according to the data processing results,the stress distribution and temperature change of the tank wall along the height direction could be obtained,and the influence of temperature on the strain at the measuring point could be obtained.By comparing the measured stress values with the finite element simulation results,the correctness of the theoretical analysis and the rationality of the monitoring scheme were verified,and suggestions were put forward for the establishment of the numerical model of the non-anchored vertical storage tank.