液化天然气(LNG)汽车日常检查方法及维护技术综述

摘要

Natural gas is a kind of high-quality alternative fuel, with the advantages of low pollution, high safety coefficient and lower operation cost,has already successful and widely used in the urban public transport field,and make a significant contribution to the energy saving and emission reduction of the trans-portation industry. Liquefied natural gas(LNG) vehicle, as a kind of natural gas vehicle, compared with the traditional diesel vehicle, installed variety kinds of special equipment, including liquefied natural gas cylinder, natural gas pipeline, control valves, and display instruments, etc. Inspection on the special equipment is necessary during the daily inspection of LNG vehicles. In this paper, the correct use method, daily inspection and maintenance method,as well relative as precautions have been summarized,and pro-vided technical reference for guidance of the daily inspection and maintenance of LNG vehicles.%天然气是一种优质的替代燃料,具有污染小、安全系数高、运行费用低等优点.天然气已经成为城市公共交通领域应用最为成功和广泛的车辆替代燃料技术,为推动交通运输行业的节能减排做出了显著的贡献.液化天然气汽车,作为天然气汽车的一种类型,与传统汽柴油车相比,液化天然气汽车安装了包括液化天然气气瓶、气管路及各种控制阀门和仪表在内的专用装置,在对液化天然气汽车进行日常检查时需要针对液化天然气汽车的专用装置进行重点检查.本文则针对液化天然气汽车的特点,对液化天然气汽车的正确使用方法、日常检查方法及维护技术要求、以及相关注意事项三个方面进行了解读,为指导液化天然气汽车进行日常检查与定期维护提供了技术参考.