| 供热直埋管道电预热设计方法的研究 |
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| 引用本文： | 菅春利. 供热直埋管道电预热设计方法的研究[J]. 科技情报开发与经济, 2011, 21(11): 187-190 |
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| 作者姓名： | 菅春利 |
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| 作者单位： | 中铁十二局集团建筑安装工程有限公司,山西太原,030024 |
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| 摘 要： | 通过理论分析电预热管道的应力变化,确定了在考虑管道内压和摩擦力情况下的实际预热温度、补偿器的冷紧量和伸长量的理论计算以及补偿器的补偿量确定,指出与冷安装相比,预热安装可以改善管道的受力,减小补偿器的补偿量。
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| 关 键 词： | 预热直埋管道 供热管道 预热温度 内压力 |
Study on Electric Preheating Design Method for Directly Buried Heat-supply Pipeline |
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| JIAN Chun-li. Study on Electric Preheating Design Method for Directly Buried Heat-supply Pipeline[J]. Sci-Tech Information Development & Economy, 2011, 21(11): 187-190 |
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| Authors: | JIAN Chun-li |
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| Affiliation: | JIAN Chun-li |
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| Abstract: | Through theoretical analysis on the stress variation of electric preheating pipeline,this paper determines the actual preheating temperature,theoretical values of compensator's cooling shrinkage/elongation and compensator's compensation amount under the condition of considering pipeline's internal pressure and friction,and points out that comparing with the cold installation,the preheated installation can reduce pipeline's stress and compensator's compensation amount. |
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| Keywords: | preheated directly buried pipeline heat-supply pipeline preheating temperature internal pressure |
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