CNG加气站设计.doc

摘要 本设计是日供应1.5万m3压缩天然气（CNG）加气站的设计。主要内容是根据天然气相关数据以及各种设计规范，进行天然气计量、调压、脱水、压缩、储存，主要参数的选择计算，并且对工艺管道的流量、管径、壁厚，作出详细的计算并写出计算过程。 本设计说明书共包括12个部分：在第一个部分主要介绍了压缩天然气加气站项目建设的背景、项目建设的必要性，第二部分主要对CNG加气站的气质参数具体分析与计算，得出了建CNG加气站的临界压力和临界温度；第三部分主要是建设规模；第四部分主要是天然气加气站的选址、场站建设的条件；第五部分主要介绍了加气站的总规划以及设计执行的主要标准及规；第六部分是本设计中最重要的环节，介绍加气站工艺流程、工艺方案特点以及工艺设备选型、管材、管阀件以及防腐，具体根据加气站的设计规模1.5m3/d的供气量进行各种设备的选型计算以及各种管件、仪器的选择。首先是根据供气量，通过计算确定压缩机，然后根据选择的压缩机的排气量依次进行调压站主要设备（比如过滤器、调压器、以及调压器前后管道）的选择计算，缓冲罐尺寸选择，压缩机后管道的计算选择，选择储气井储气，并进行了储气井的设计计算以及储气井的优化；废气回收罐的选择、及充气流程以及加气机的选择计算。第7部分到12部分主要介绍了加气站的各项配套设施，包括管道的消防设施，安全生产与工业卫生、绿化以及通信，节约能源和合理利用资源，环境保护等。 关键词：加气站；压缩机；脱水装置；储气井；加气机 Abstract The design of the subject is: on the supply of 15,000 m3 of compressed natural gas (CNG) filling stations design. The main contents of the relevant data is based on natural gas as well as the design specifications for natural gas measurement, voltage regulator, desulfurization, dehydration, compression, storage, the choice of the main parameters of the calculation, and process pipe flow, pipe diameter, wall thickness, in detail calculation process to calculate and write. The design specification, including a total of 13 parts: the first introduced some of the major projects on compressed natural gas filling stations in the background, the need for project construction, The second part of the main character of the CNG filling stations and calculation of parameters of a specific analysis, to build CNG filling stations reached the critical pressure and critical temperature, The third part is the scale of construction; fourth part is the location of natural gas filling stations, the station building conditions; fifth introduced some of the major stations of the total planning and design of the implementation of the main standards and regulations; Part VI is the design of the most important aspects on process stations, the characteristics of technology programs, as well as selection of process equipment, pipe, pipe valves, as well as anti-corrosion