Tubular heat exchanger with built-in filament spiral heat exchange assembly

The utility model discloses a tubular heat exchanger with a built-in filament spiral heat exchange assembly, and relates to a heat exchange device. The tubular heat exchanger is mainly designed for solving the problem that an existing tubular heat exchanger is low in heat exchange efficiency. The heat exchanger comprises a shell, end sockets are arranged at the two ends of the shell, a heat exchange tube is fixed to a tube plate, the tube plate is fixed to the shell, a shell pass fluid inlet and a shell pass fluid outlet are formed in the shell, and a partition plate is fixed to the middle of the left end socket and the middle of the left tube plate; a filament spiral heat exchange assembly is arranged in the heat exchange tube; the filament spiral heat exchange assembly comprises a spiral spring-shaped edge filament and two core filaments, one of the two core filaments is located on the inner side of the spiral spring-shaped edge filament, the other core filament is located on the outer side of the spiral sp