The invention aims to provide an inter-plane sealing
assembly for a high-temperature zone gap of a gas
turbine. The inter-plane sealing
assembly comprises an upper groove clamping seat, a lower grooveclamping seat and a sealing clamping ring, the upper groove clamping seat and the lower groove clamping seat are fixed to the upper end face and the lower end face of a gap between a
diffusion section at a
compressed air inlet of a
combustion chamber and a supporting plate correspondingly, and the two ends of the sealing clamping ring are installed in the upper groove clamping seat and the lowergroove clamping seat correspondingly; and the two ends of the sealing clamping ring are open circular rings, the
diameter of the circular rings is larger than the inner size of the groove clamping seat, when the sealing clamping ring is installed in the upper groove clamping seat and the lower groove clamping seat, the circular rings contract and deform inwards, and inter-plane sealing is achievedthrough deformation and springback of a steel structure of the sealing clamping ring. The sealing
assembly can be installed in a whole
ring mode, fasteners do not need to be adopted for fastening, installation convenience is guaranteed, and meanwhile the risk that due to long-term operation of the gas
turbine, the fasteners are broken and damage equipment is avoided; and the sealing assembly is not limited by the plane position, the groove clamping seat can be staggered, an included angle can be formed between the two planes, and the application range is extremely wide.