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The structure and working principle of refrigerated showcase BCD-218W intelligent variable volume commercial refrigeration
author: supermarket refrigerated showcase category: commercial refrigeration Views: 527Time: 2016-08-22
The structure and working principle of refrigerated showcase BCD-218W intelligent variable volume commercial refrigeration
refrigerated showcase BCD-218W intelligent variable volume commercial refrigeration is an intercooled three-door refrigeration freezer commercial refrigeration. It has the functions of setting memory, automatic alarm, automatic frost, start-up delay, and automatic deodorization. The upper part is a refrigerating room, the middle part is a temperature changing room, and the lower part is a freezing room. Because the variable temperature greenhouse can be set as a freezer, refrigerator, and micro-freezer according to user requirements, it can change the ratio of freezing and cold storage spaces, so it is called a variable volume cabinet. The refrigeration capacity of the refrigerated evaporator is distributed to the freezer compartment, the greenhouse, and the refrigerating compartment by the electric damper. When the main control board supplies power to the air door motor, the air door motor runs, driving the air door to reciprocate and transfer the cold air from the freezer compartment evaporator to the cold room and the greenhouse.
1. The work flow of the refrigeration system. The refrigeration of this type of commercial refrigeration is basically the same as that of an ordinary room refrigeration machine. The refrigerant direction is: compressor-> auxiliary condenser-> left main condenser-> anti-dew pipe-> right main condenser-> filter-> capillary tube-> freezer evaporator-> compressor.
2. The structure and working principle of computer control
commercial refrigeration The computer control board is composed of the main control board and input and output interfaces. After the 220V mains voltage is input by the plug CON1, it is output to the power transformer through pins 1 and 3 of the plug CON6, and the AC voltage of about 12V is obtained by stepping down by it. The voltage is first transformed into a DC voltage of 12V through the bridge rectifier filter circuit. , And then stabilized voltage to get 5V. When the main control board gets 12V and SV supply voltage, it will enter the working state.
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