DEVICE FOR BREEDING MATERIAL FREEZING Russian patent published in 2017 - IPC F25D11/00 

FIELD: agriculture.

SUBSTANCE: exit window of evaporator chamber communicates with the chamber of cabinet by means of a flat, upper and side wall of the cabinet long, air channel made with the partitions in the lower part of the cabinet, at the outlet of which the exhaust fan is installed. In the hydraulic circuit of the chiller, a solenoid cooling valve is installed in series behind the condenser in front of the thermostatic throttling valve with a corrective thermo-fluid temperature sensor, and a solenoidal heating valve is installed in parallel to the condenser and the output of thermostatic throttling valve 11, which is shunted by a capacity regulator, which is designed as a membrane pressure relief valve with an adjusting spring and with a tube communicating with the suction line of compressor. Electronic control panel includes a power supply unit, an auxiliary relay type RAM, a programmable relay 28 of the type PR-114, a touch panel type TP-270, an interface module type PR-IM485, and a normalizing temperature converter 32 type NTC-1. The power supply unit, the auxiliary relay unit, the programmable relay are connected by a circuit breaker in parallel to the power supply network of actuators, and the touch panel, the normalising temperature converter, the programmable relay from the power supply unit are powered by a direct current. The touch panel via the interface module is electrically connected to a programmable relay connected to the normalising temperature converter, which in turn is connected to a thermistor located inside the chamber of cabinet.

EFFECT: increasing the accuracy of maintaining the temperature throughout the working volume of chiller chamber, the operational reliability of the refrigeration machine, the stability of technological freezing process automatic control system, the improvement of display system.

2 cl, 3 dwg