天然气长输管线中间调压计量站设计论文解说.doc

摘 要 天然气调压计量站是天然气输配工程的重要组成部分。其主要任务是调节输气管线的压力、计量气体流量以及脱除天然气中含有的液滴和机械杂质等，在天然气的输送与分配过程中占有重要地位。 本文是天然气长输管线中间调压计量站的工艺设计，该站集调压、计量、清管和气体分离功能于一体，是典型的中间调压计量站。长输管线来气在该站经分离后，一部分经调压计量输送至用户；另一部分经计量后进入干线。按照调压计量站应简洁准确、安全可靠、经济高效的设计思路，对该站场主要工艺进行了设计。设计中充分考虑了基本工艺参数和工艺要求，依据相关规范标准，确定了主要设备的设计、选型、安装的原则和方法。在此基础上，对主要设备进行了工艺计算和选型，并绘制了站场的工艺流程图、平面布置图和平面安装图。 设计结合了具体工程要求，采用成熟的设计方法和工艺流程，严格遵循必威体育精装版规范标准及国家有关政策法令，最终完成了一套完整的调压计量站设计方案。 关键词：天然气；调压站；计量；设计；工艺流程 Abstract Natural gas regulating metering station is an important component of the project of gas transmission and distribution .Its major task is to regulate the pressure on gas pipeline, gas flow measurement and removal of the droplets and machinery impurities containing in natural gas .it occupies an important position in the natural gas transmission and distribution process. This article is about the process design of regulating metering station at the middle of the long-distance pipeline, the station setting the functions of pressure regulation, flow measurement, and gas purification in one is a typical middle regulating metering station. Part of the gas from long-distance pipeline separated at the station, after pressure regulation and flow measurement is delivered to the users; another part of the gas through flow measurement directly flow into the Gas Transmission Line. The mainly technological design of the station is in accordance with the design philosophy of regulating metering station should be simple accurate, secure, reliable, cost-effective. The design takes full account of the basic technical parameters and technological requirements and based on relevant standards to determine the principles and methods of the major equipments’ design, selection and installation. On this basis, the major equipment were calculated and selected, and a engineering flow diagram, site plan and Planar installed Fig of the station has been drawn. The design has combined the specific engineering requirements, used proven technique and technological process