Kinetic energy recovery system of expansion generator set and heat exchanger connecting device

The invention relates to the technical field of expansion generators, in particular to an expansion generator set kinetic energy recovery system and heat exchanger connecting device which comprises a compressed air storage tank, an air inlet main valve and an air inlet adjusting valve are sequentially installed on an outlet main pipe of the compressed air storage tank, and a multi-stage expansion machine is connected to the air inlet adjusting valve. A heat exchanger is connected to an air inlet pipeline on the multi-stage expansion machine, a transmission shaft of the multi-stage expansion machine is connected with a generator, part of kinetic energy of the expansion generator can be recycled in the shutdown process of the compressed air energy storage expansion generator set, the energy utilization rate is increased, energy waste is reduced, and a quick release mechanism is used for reducing energy consumption. The dismounting device comprises a power part arranged on the tube plate, a mounting part arrange