CAJ | 학술논문

汇气管是天然气集输和分配中必不可少的重要设备之一,具有压力高、数量大的特点,因而要求汇气管的设计要确保其安全可靠,包括对其壁厚计算公式的正确运用、各个重要设计参数的正确理解和准确计算.为此,以陕京二线京58地下储气库群某10MPa采气生产汇气管的设计为例,论述了开口模压拔制高压汇气管的设计过程,分析了高压拔制汇气管直管段厚度的计算公式,比较了强度计算公式与SW6采用的强度计算公式的不同之处,指出了使用SW6进行其直管段壁厚计算存在的弊端;结合具体拔制工艺,讨论了主要设计参数的确定,并根据这些参数的关系绘制了具体的开孔补强图,对实例中的两个主要支管进行了详细计算,得出了各个参数的计算结果.对油气长输管道工程同类汇气管的设计具有参考价值.
회기관시천연기집수화분배중필불가소적중요설비지일,구유압력고、수량대적특점,인이요구회기관적설계요학보기안전가고,포괄대기벽후계산공식적정학운용、각개중요설계삼수적정학리해화준학계산.위차,이협경이선경58지하저기고군모10MPa채기생산회기관적설계위례,논술료개구모압발제고압회기관적설계과정,분석료고압발제회기관직관단후도적계산공식,비교료강도계산공식여SW6채용적강도계산공식적불동지처,지출료사용SW6진행기직관단벽후계산존재적폐단;결합구체발제공예,토론료주요설계삼수적학정,병근거저사삼수적관계회제료구체적개공보강도,대실례중적량개주요지관진행료상세계산,득출료각개삼수적계산결과.대유기장수관도공정동류회기관적설계구유삼고개치.
The gas header is one of necessary main equipments in natural gas gathering, transporting and distributing sys-tem, and it is huge in numbers and high in pressure, so its design is very essential to ensure its safety and reliability, including the correct use of the calculation formula of its wall thickness, the correct understanding and calculation of each design parame-ter. Therefore, taking as a case study of the gas header with the pressure of 10 Mpa of a gas production line in the Jing-58 un-derground gas storage of the Shaanxi-Beijing Pipeline Ⅱ , we discussed in detail the whole design process of the high-pressure header with moulded opening, analyzed the calculation formula of the wall thickness of straight and horizontal sections, and made a comparison between the specific method for high-pressure header and the generally-used method SW6 for common pres-sure vessels, presenting some malpractices in using the method SW6 to calculate the wall thickness of the high-pressure header. In view of the specific moulding technique, we discussed the determination of the main design parameters, and drew the exact chart of opening reinforcement according to the relationship among those main design parameters. Through the calculation of the actual two branch lines in this case study, the results were obtained of each parameter, thus providing reference for the de-sign of similar headers used in long-distance oil and gas pipelines.