METHOD FOR CONTROL OF FREEZING OF FOOD IN ROTOR MECHANISM AND DEVICE WHICH IMPLEMENTS SAID METHOD Russian patent published in 1998 - IPC

FIELD: refrigerators, food industry, fishing ships. SUBSTANCE: device has N groups of beds which have refrigerating beds with approximately equal heat load. Freezing process is controlled separately for each group of beds in system. Measuring of initial temperatures of food and cooling agent provides data for calculation of reference heat load for each group of beds and corresponding usage of cooling agent. During freezing, usage of cooling agent and difference in temperature at input and output of group of beds are measured, real heat load is calculated and cooling agent usage is controlled depending on difference between reference and real heat load. Corresponding device has disks which are connected to pipes for supply and removal of cooling agent with radial channels for connection to freezing beds, generator of control action which is designed as computer assembly with reference model. In addition device has actuating mechanism, control handles for cooling agent supply into radial channels and for each group of beds additional detectors of cooling agent temperature at input and output and detector for movement of control handle. All groups of beds have detector of initial temperature of food. EFFECT: increased precision of freezing control, increased quality of frozen food, decreased power consumption. 2 cl, 1 dwg