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随着国民经济的快速发展,能源需求的增长及能源结构的调整,我国油气长输管道敷设量与日剧增,与之配套的站场建设也随着增加,站场、阀室内存在大量设备、阀门,为便于使用过程中的拆卸,设备与管道、阀门与管道较多的采用法兰连接,由于采用法兰连接如果没有合理的紧固数值,没有合理的紧固工具,没有合理的紧固方法极易造成螺栓断裂、螺纹脱扣、垫片损坏、压力试验时泄露,造成损失,影响施工工期,给工艺运行带来较大危害。因此如何准确的计算出螺栓紧固数值、采用均衡的力矩紧固工具,合理的紧固方法尤为重要。
With the rapid development of the national economy, the growth of energy demand and the adjustment of the energy structure, the amount of oil and gas pipelines laid in China has increased rapidly with the increase of the number of stations and the number of equipment in the station yard and valve room , Valves, in order to facilitate the demolition of the process, equipment and pipelines, valves and pipelines with more flange connection, due to the use of flange connection if there is no reasonable value of the fastening, there is no reasonable fastening tool, there is no reasonable tight Solid method can easily lead to bolt rupture, thread tripping, gasket damage, pressure test leaks, resulting in loss, affecting the construction period, to the operation of the greater harm. Therefore, how to accurately calculate the bolt fastening values, the use of a balanced torque fastening tools, a reasonable method of fastening is particularly important.