Online detection device for aerogel composite material

The utility model discloses an aerogel composite material on-line detection device which comprises a box body, a vacuum pump, a special gas sensor and a controller, the box body is provided with an inlet and an outlet which are used for aerogel composite materials to pass through, the inlet and the outlet are respectively provided with at least one pair of compression rollers, each pair of compression rollers is respectively arranged above and below the inlet or the outlet, and the special gas sensor is connected with the controller. The compression roller is connected with the box body and the aerogel composite material in a sealed mode so that the aerogel composite material entering the box body can be sealed in the box body, the vacuum pump is communicated with the box body through the suction inlet, and the special gas sensor is arranged on the gas outlet. And the section of aerogel composite material is sealed in the box body by two pairs of compression rollers at an inlet and an outlet of the box body.