LNG半自动化装卸臂应用研究
Application Research of LNG Semi Automatic Loading and Unloading Arm

针对LNG接收站装卸过程中现有装车臂自动化程度低，人工接车参与度高、效率低的问题，研发了一种适用于LNG装车场的半自动化装车臂。通过开展气动执行系统研究，优化装车臂装车工艺和管路系统，采用气动阀门代替传统装车臂的手动阀门，实现装车臂阀门自动控制。通过高精度液压驱动系统研究，合理布局液压驱动系统，采用液压马达驱动各转动关节，提高装车臂的自动化程度。通过强度校核、压力试验、气密试验、低温试验、现场试运行等一系列工作，验证了液压半自动化装车臂自动化程度高、运行可靠，能够有效地减少人工参与度，降低操作人员劳动强度，提高装车臂对接效率。
In order to solve the problems of low automation, high participation and low efficiency of the exist-ing loading arm in the LNG terminal loading and unloading process, a semi-automatic loading arm suitable for LNG loading yard was developed. Through the research on the pneumatic actuating system, the loading process and pipeline system of the loading arm are optimized, and the pneu-matic valve is used to replace the manual valve of the traditional loading arm to realize the auto-matic control of the valve of the loading arm. Through the research of high-precision hydraulic drive system, the hydraulic drive system is reasonably arranged, and the hydraulic motor is used to drive each rotating joint to improve the automation of the loading arm. Through a series of work such as strength check, pressure test, air tightness test, low temperature test and on-site trial run, it is veri-fied that the hydraulic semi-automatic loading arm has a high degree of automation and reliable operation, which can effectively reduce the degree of manual participation, reduce the labor inten-sity of operators, and improve the docking efficiency of the loading arm.