The application of tube body corrosion detection system in the steam injection pipelines for hot extraction of thick oil is introduced when the existing insulation layer is not dismantled.

介绍了在不拆除现有保温层的情况下，管体腐蚀检测系统在稠油热采注汽管道中的应用。

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A mathematic model for the influence of extraction steam pressure loss on thermal economy of the unit was established based on the matrix thermal balance equation of the thermodynamic system.

基于热力系统结构矩阵，通过严密的数学推导，给出了定流量条件下抽汽压损对机组热经济性影响的计算模型。

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