Gas tightness detection device and method for combustion chamber interface

The invention relates to the technical field of combustor air tightness detection, in particular to an air tightness detection device and method for a combustion chamber connector. The device comprises a burner, connecting devices are arranged in an air inlet and an air outlet of the burner, a detection device used for detecting air tightness is arranged between the two connecting devices, each connecting device comprises an attaching device and a ventilation device arranged in the attaching device, and a clamping device is arranged on each ventilation device. The ventilation pipe is used for driving the sealing rubber belt to be inserted into the gas port of the combustor, the sealing rubber belt makes contact with the side wall of the gas port of the combustor, meanwhile, the clamping device is used for extruding the sealing rubber belt, the side wall of the gas port of the combustor and the sealing rubber belt are tightly attached, and the device and the combustor are tightly connected; the trouble of conn