Frequency conversion technology application

System Overview
With the continuous improvement of people's living standards and production technology, Huaxiang industrial refrigeration frequency conversion technology has become the main equipment for maintaining suitable indoor air and high-quality cleanliness. With the continuous development of current industrial technology, frequency conversion technology is widely used in various industrial applications due to its unique advantages of energy saving, labor saving, comfort and easy construction of automatic control systems.

System principle
As an advanced technology for motor drive and speed control, frequency conversion technology has been applied to many industries with the development of power electronics, microcomputer control technology and semiconductor technology, such as power conversion, industrial manufacturing, industrial and household motor drives, etc. . Its biggest advantage is to realize the high-efficiency stepless speed regulation of the motor, and realize the upgrade from a relatively low-energy-efficiency AC motor to a high-efficiency energy-saving DC motor, thereby realizing the purpose of energy-saving frequency conversion.

In this process, industrial refrigeration frequency conversion technology has become the development trend of the industrial application industry, and the energy-saving application of frequency conversion technology in the process has also been recognized by the market. At the same time, the application of frequency conversion water pumps is becoming more and more popular.

System advantages
Huaxiang inverter chiller can adjust the operating frequency of the compressor to match the capacity and load. Compared with the frequent "start-stop" control method of traditional fixed-speed chillers, inverter chillers are highly energy-efficient and basic due to its low-frequency operation. Stable operation without switching loss, can realize high-efficiency energy saving.

The energy-saving evaluation of the flexible chiller is determined according to the rated capacity and the energy efficiency value under the rated working conditions. The index can be qualitatively evaluated as the relative evaluation index of the laboratory test, which can relatively evaluate the energy saving of different chillers under the rated capacity. . However, it cannot truly reflect the energy-saving effect of the chiller during actual use and operation. The energy efficiency index of the fixed frequency chiller only considers the energy-saving characteristics of the rated load under the rated working condition. The figure below shows the comparison of the refrigeration capacity and refrigeration efficiency range of the inverter chiller and the fixed frequency chiller.