Heat transfer tube inspection device

The invention discloses a steam generator inspection device capable of enabling a detection head with a camera to easily move in a required direction. A heat transfer tube inspection device according to one embodiment of the present invention comprises: a rail part configured to be inserted into the interior of the steam generator; a detection head which is provided with a camera and a light-emitting element; a transport vehicle which is installed so as to be capable of moving along the rail part and which moves the detection head; and a tube joining part including a plurality of protective tubes electrically connected to the detection head and having flexibility. The protective tubes are fixed to adjacent protective tubes by means of a plurality of joining parts, and the joining parts are formed so as to be spaced apart from each other in the longitudinal direction of the tube coupling body. 本发明揭示一种能让具备摄像头的检测头轻易地往所需方向移动的蒸气发生器检查装置。本发明的一个实施形态的传热管检查装置包括：轨道部，配置成插入所述蒸气发生器的内部；检测头，具有摄像头与发光元件；运输车，安装成能够沿着所述轨道部移动，使所述检