Frequency conversion energy-saving temperature control device of refrigerating device

Abstract

The invention relates to a frequency conversion energy-saving temperature control device of a refrigerating device, comprising a frequency conversion compressor, a condenser, an expansion device and an evaporator; the frequency conversion energy-saving temperature control device is also provided with a first bypass circuit and a flow rate control valve thereof which are used for receiving high temperature and high pressure gaseous refrigerant output by the frequency conversion compressor and outputting the gaseous refrigerant into an input end of the evaporator, as well as a second bypass circuit and a flow rate control valve thereof which are used for receiving high temperature and high pressure gaseous refrigerant output by the frequency conversion compressor and outputting the gaseous refrigerant into an input end of the frequency conversion compressor. By using the hot gas bypass circuits, the first flow rate control valve and the second control valve to respectively reflect volume control, rapid reaction and the temperature change of working fluid of a working machine connected with the evaporator, the device can accurately carry out constant temperature control.

Description

technical field [0001] The invention relates to a frequency conversion energy-saving temperature control device for a refrigeration device, in particular to a frequency conversion energy-saving temperature control device that uses a frequency conversion compressor to cooperate with a hot gas bypass circuit to control flow and temperature respectively. Background technique [0002] Industrial processing equipment, such as machine tools, semiconductor processing refrigerators, etc., will generate high temperatures during processing operations, resulting in thermal displacement and making the processing platforms of these equipment deviate from the center position, thereby affecting the processing accuracy. Therefore, in order to cope with the industry's move towards precision, it is necessary to properly use processing refrigerators to suppress high temperatures and control processing accuracy, so as to produce high-quality, high-value-added products. [0003] Among the above-...

AI Technical Summary

Problems solved by technology

And if the expansion device 13 is correspondingly opened to allow more refrigerant to pass through to control the temperature, it will also cause low load, and the inverter compressor 15 will run at a higher speed (frequency) instead, which is a disadvantage of wasting energy.

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