Refrigerating equipment based on hardness control

Abstract

The invention relates to the technical field of refrigerating equipment, in particular to the refrigerating equipment based on hardness control. The refrigerating equipment based on the hardness control comprises a main control module, and a motor driver module and a compressor driver module are arranged on the main control module and controlled by the main control module. In a preparation process of frozen foods, when the hardness of frozen products is changed slightly, the load of a mixing motor is changed accordingly, mixing speed is affected by the load and changed, when a speed variation transmitted by a speed sensor is accepted by the main control module, a motor is driven to be at a setting speed through the motor driver module by the main control module, and uniform rotation all the time is achieved. On the other side, a working current which can be detected by a load current detecting device is changed, further the actual hardness of the products can be obtained through current-hardness analysis arranged in the main control module, and start-up and shut-down of a refrigerating compressor is driven through the compressor driver module, so that accurate hardness control of the frozen products is achieved, and frozen product quality is exactly ensured.

Description

technical field [0001] The invention relates to the technical field of refrigeration equipment, in particular to a refrigeration equipment based on hardness control. Background technique [0002] With the development of the economy and the continuous improvement of people's living standards, the consumption of yogurt or ice cream is increasing, and the market demand for freezing equipment such as yogurt machines or ice cream machines is increasing year by year. Therefore, the control performance of yogurt ice cream machines is good. Damage and reliability will directly determine the market viability and competitiveness of the product. Balanced hardness is an important factor to ensure refrigeration products. Most of the current refrigeration equipment adopts temperature control mode, using temperature to adjust the start and stop of refrigeration compressors, so as to achieve appropriate hardness; however, in order to achieve appropriate hardness, in addition to temperature ...

AI Technical Summary

Problems solved by technology

Balanced hardness is an important factor to ensure refrigeration products. Most of the current refrigeration equipment adopts temperature control mode, using temperature to adjust the start and stop of refrigeration compressors, so as to achieve appropriate hardness; however, in order to achieve appropriate hardness, in addition to temperature Stirring at a constant speed by the stirring motor is also an important factor to ensure the hardness; in common cases, the stirring motor drive also adopts simple speed open-loop control. When making frozen products with a certain hardness, temperature control and motor speed open-loop control cannot be achieved. Desired product hardness: When the refrigeration compressor is working and the temperature of the frozen product changes, the hardness of the frozen product also changes, the load of the stirring motor changes accordingly, and the stirring speed also changes accordingly. The constant speed of the stirring motor cannot be achieved due to the open-loop control Therefore, the temperature alone cannot reflect the actual hardness status, and the quality of frozen products such as yogurt or ice cream prepared by the refrigeration equipment will be reduced

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