2 results about "Flash freezing" patented technology

The invention provides an air supply control method of an instant freezing chamber and refrigeration equipment, and relates to the technical field of refrigeration equipment, the method comprises the following steps: acquiring a temperature difference value T between an air temperature T2 in the instant freezing chamber and a temperature T1 of a heat radiation wall of the instant freezing chamber; judging whether the temperature difference value T is greater than or equal to a first temperature threshold value X; and if yes, when the instant freezing chamber is not in the supercooling keeping state, the chamber air supply outlet is controlled to be opened. And the air cooling device supplies air to the instant freezing chamber through the air supply outlet so as to cool air in the heat radiation wall and the instant freezing chamber, so that the air in the instant freezing chamber quickly returns to the supercooling keeping state again. After the heat radiation wall is cooled by the supplied air of the air cooling device, the cooling efficiency of the air in the freezing chamber is enhanced, so that the instant freezing chamber can quickly enter and maintain a supercooling keeping state. The supercooling introduction period is short, the energy consumption is low, the food can quickly enter a supercooling keeping state, and the preservation effect is good.

The application discloses a self-adaptive temperature zoning control system and method for a flash freezing device, relates to the technical field of intelligent temperature control of the flash freezing device, and is used for solving the problems of uneven temperature control, abrupt adjustment of adjacent zones and insufficient adaptability in the freezing process. The freezing treatment area is divided into multiple temperature zones along the conveying direction of the object to be frozen. The air temperature, supply air temperature, return air temperature, surface temperature of the object to be frozen, conveying speed and zone coverage rate are collected. The temperature demand value, heat load characteristic value and temperature trend determination value are calculated. The target adjustment temperature and self-adaptive adjustment amount are generated. The adjacent zone boundary state is coordinately controlled. According to the adjustment result, the correlation coefficient is feedback corrected. The self-adaptive, continuous and refined control of the flash freezing process is realized.