Pipeline gas content detection device and method

The invention belongs to the technical field of gas detection, and particularly discloses a pipeline gas content detection device and method.The pipeline gas content detection device comprises a pipe body, the pipe body is provided with a containing cavity, one end of the pipe body is provided with an opening, the end, away from the opening, of the pipe body is provided with an exhaust pipe, and the exhaust pipe communicates with the containing cavity; the cover body is detachably connected with the pipe body, an air inlet pipe is arranged at the end, away from the pipe body, of the cover body, and one end of the air inlet pipe communicates with the containing cavity; according to the gas detection device, through the arrangement of the pipe body, the cover body, the gas inlet pipe and the gas exhaust pipe, air in the pipe body can be exhausted, so that the pipe body is filled with gas to be detected, the detection precision can be improved, and waste of the gas to be detected is avoided. 本发明属于气体检测技术领域，具体公开了一