Fuente: WIPO "dairy products" The utility model discloses a heat preservation time -delay device disinfects relates to dairy products sterilizing equipment. A heat preservation time -delay device disinfects, includes connecting pipe, inlet pipe, discharging pipe between structure frame, the tubulation more than two, row, the tubulation includes the heat preservation straight tube more than two, 180 degrees elbows, and the heat preservation straight tube is horizontal rectangular array formula to be arranged, is snakelike series connection through 180 degrees elbows between the heat preservation straight tube, and the heat preservation straight tube more than two connects to form one, and the entrance point of first tubulation passes through the union to be connected with the inlet pipe, the inlet connection of exit end through being listed as a connecting pipe and next tubulation, and the exit end of last tubulation passes through the union and is connected with the discharging pipe, the structure frame sets up at frame surfaces including frame, locating rack, insulation guard board, insulation guard board, and the locating rack is fixed on the frame, and the top and the bottom of tubulation set up on the locating rack respectively. The utility model discloses simple structure, it is low to make the degree of difficulty, the dismouting of just being convenient for, transport, checksum maintenance.