Low-temperature negative-pressure water-proof cold steaming device and process method thereof

The low-temperature negative-pressure water-proof cold steaming device comprises a tank body, a base, an air cylinder assembly and a sealing cover, an exhaust pipe and a pressure gauge are arranged on the sealing cover, a water inlet pipe and a water outlet pipe are arranged on the side face of the tank body, a heating mechanism and a temperature sensor are arranged in the tank body, and a steam box is movably connected to the bottom end of the sealing cover in a clamped mode. According to the low-temperature negative-pressure water-proof cold steaming device and the technological method thereof, the steam box is convenient to take and place through the air cylinder assembly, the efficiency is improved, water-proof heating is achieved through cooperation of the heating mechanism and the water inlet pipe, the uniformity of temperature rising of raw materials is guaranteed, heating is conducted at the temperature of 72-78 DEG C, loss of nutrients in the raw materials under the high-temperature condition can be