Novel system for switching natural gas into refinery gas

The utility model discloses a novel system for switching natural gas into refinery gas, which comprises a pipeline gas-liquid separation tank, a gas inlet of the pipeline gas-liquid separation tank is connected to a fuel gas pipe network, a gas outlet of the pipeline gas-liquid separation tank is connected with a first pipeline, the first pipeline is connected with a pressure reducing valve, and the pressure reducing valve is connected with a second pipeline. The first pipeline is connected with a second pipeline, the tail end of the second pipeline is connected to a main burner of the heating furnace, the second pipeline is sequentially connected with a flame arrester and a pressure control valve, and the first pipeline is provided with a heating device. The device has the technical advantages that the structure is simple, operation is convenient and fast, and natural gas can be switched to refinery gas for use. 本实用新型公开的是一种新型天然气切换炼厂气的系统，包括管道气液分离罐，所述管道气液分离罐的气体进口连接在燃料气官网上，所述管道气液分离罐的气体出口连接有一号管线，所述一号管线上连接有减压阀，所述