流化床埋管表面局部热流测试装置的研制

A Measuring Apparatus for Local Transient Heat Flux in Fluidized Beds

本文报道用于测试流化床内埋管表面局部瞬态热流的实验装置的研制.该装置采用等温条件下的铂膜探头方法,并对铂膜探头和基体分别进行温度控制,使其既能测得时均参数又能测得瞬态参数.文中对铂膜控制回路进行了动态响应分析,并给出了实验测试结果.

An apparatus for measuring the local transient heat flux on the immersed surface in fluidized beds is described. The platinum film probe technique under isothermal condition is adopted. The temperatures of the platinum film and basal body are controlled separately so that both the transient heat flux and time-averaged parameters can be measured at the same time. A dynamic response analysis on the control circuit for the platinum film has been carried out. Some of the experimental results are given.