Detachable waste lubricating oil hydrogenation reactor inlet connecting pipeline

The utility model discloses a detachable waste lubricating oil hydrogenation reactor inlet connecting pipeline which is composed of a pipeline inlet straight pipe section flange, a pipeline inlet straight pipe section, an elbow, a reactor inlet straight pipe section and a manhole flange cover which are connected together in a welding mode to form a whole. The connecting pipeline is connected with an oil-gas inlet pipeline and a manhole at the top of the reactor through bolts and can be detached at any time, only the inlet pipeline needs to be detached when a catalyst in the reactor is loaded and unloaded and the reactor is overhauled, construction and filling of the top of the reactor are facilitated, and the connecting pipeline can be widely applied to hydrogenation reactors. 本实用新型公开一种可拆卸废润滑油加氢反应器入口连接管道，由管道入口直管段法兰、管道入口直管段、弯头、反应器入口直管段、人孔法兰盖组成，每段之间采用焊接方式连接在一起，从而形成一个整体，该连接管道与油气入口管道和反应器顶部人孔采用螺栓连接，可随时拆卸，在反应器内催化剂装卸及反应器检修时，只需拆下该入口管道即可，方便反应器顶部施工及装填，可广泛应用于加氢反应器中。