塔轮输油管线总传热系数的研究

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塔轮输油管线起于塔克拉玛干沙漠腹地塔中4油田,止于沙漠边缘塔北轮南油田,全长 302km。其总传热系数值是塔克拉玛干沙漠油田埋地非保温管线的典型代表。通过两种测试手段进行相互验证:一种是在列宾宗公式的基础上讨论了油流摩擦产生热的影响可忽略不计,从而可利用舒霍夫公式计算K值,同时分析了油流的滞后时间,稳定温场的影响,自然地温的获取等;另一种是通过测试管线的散热量反算K值。经过连续一年的现场测试,得出该管线的总传热系数值为0.8SW/m_2·℃,该值可在沙漠油田埋地非保温管线设计时采用。 The tower pipeline runs from Tazhong 4 oilfield in the hinterland of the Taklamakan Desert to the north of Tarnnan Lunnan at the edge of the desert and has a total length of 302km. The total heat transfer coefficient is a typical representative of the buried non-insulated pipeline in the Taklamakan Desert oil field. The two methods are used to verify each other. One is based on the Liebbing formula, the influence of the heat generated by oil flow friction is negligible, and the Schuff formula can be used to calculate the K value. Lag time, the impact of the stability of the temperature field, the natural access to temperature, etc .; the other is through the test line heat dissipation inverse K value. After a year of field tests, the total heat transfer coefficient of this pipeline was found to be 0.8SW / m 2 · ℃. This value can be used in the design of buried non-insulated pipeline in desert oilfield.
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