加油站建设中的技术要求

论述了加油站输油工艺系统的设计和施工要求。输油工艺系统可分为出油系统，进油系统和能通气系统。出油系统中，油罐与加油机之间的出油管呈直线布置，出油管在罐内的末端须加单向底阀。进油系统中卸油一般为密闭式卸油，进油管应距罐底２００ｍｍ，以防产生静电。油罐与管道连接的附件都集中在人孔盖上，罐和管道使用前进行防腐，试漏试验，加油机底阀的安装决定着加油机的正常人工作，底阀的试压可检验螺纹连接处的密封。加油站内

Technical Requirements for Fuelling Station Construction

Discussed in this paper are the requirements for the design and construction of the storage and transtportaion systems in a fuelling station, which consist of flow in, flow out and aerating systems. In the flow out system, the flow lines between tank and filling hose are installed in straight line and are equipped with a non - return foot valve at the end to the tank. In the flow in system, closed unloading is usually used, and feed lines shall be 2000mm from tank bottom to prevent static electricity. Pipe fittings connected with the tank are concentrated within the range of manhole cover, with their layout shown in Fig. 2. Tanks and pipes shall be corrosion and leakage tested prior to service. Normal filling operation is dependent upon the correct installation of its foot valve which shall be pressure tested for sound sealing of the screwed connection. Earthing devices in the fuelling station include earthing of lightning arrestor, electrostatic earthing and earthing of electric equipment. The earthing devices for process system consist of earth plate and earth lead. A separate earthing device is installed at the unloading point of the station. Earthing protection against electric leakage must be provided for the enclosure of fueller.