Sealing structure of heat exchanger

The utility model relates to the technical field of heat exchangers, in particular to a sealing structure of a heat exchanger, which comprises a main body, two pipe caps, two sealing rings and two groups of quick-mounting mechanisms, each quick-mounting mechanism comprises a plate body, two side plates, two sliding plates, an elliptical plate, two first springs, two stress pieces, two connecting pieces and two propping pieces, the plate body and the two side plates are fixedly connected with the main body, the plate body is provided with two sliding grooves, the two stress pieces are slidably connected with the corresponding sliding grooves respectively, the side plates are provided with grooves and guide holes, the two sliding plates are fixedly connected with the corresponding pipe caps, the two sliding plates are slidably connected with the corresponding grooves respectively, the sliding plates are provided with abutting grooves, and the abutting grooves are fixedly connected with the pipe caps. The connec