Control method of oil return system, air conditioner and oil return system
An oil return system and oil return valve technology, applied in the control fields of air conditioners, oil return systems, and oil return systems, can solve problems such as low volumetric efficiency of compressors, improve the energy efficiency of the whole machine operation, increase volumetric efficiency, improve Effect of Effective Inspiratory Volume
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0036] In this embodiment, an oil return system is provided, figure 1 is a structural diagram of an oil return system according to an embodiment of the present invention, such as figure 1 As shown, the structure of the oil return system includes:
[0037] Oil separator 10, used to separate refrigeration oil and refrigerant;
[0038] The oil return pipeline 12, one end is connected to the oil separator, and the other end is connected to the high-speed flow path of the high-pressure chamber of the compressor, which is used to utilize the pressure difference between the exhaust passage in the high-pressure chamber and the oil separator The refrigerating oil flows from the oil separator into the high pressure chamber.
[0039] The compressor in this embodiment includes an oil return pipeline, an exhaust pipeline, and an air suction pipeline, and the oil return pipeline is connected to the high-speed flow channel of the high-pressure chamber of the compressor.
[0040] One side ...
example 1
[0050] Example 1: The oil return system further includes: a first detection module for periodically detecting the liquid level of the refrigerated oil pool at the bottom of the compressor; a first control module for controlling the oil return based on the liquid level valve opening.
[0051] In an example of this example, the first control module is specifically configured to: if the liquid level is greater than or equal to a first threshold, lower the current opening of the oil return valve; if the liquid level is less than If the first threshold is greater than or equal to the second threshold, the current opening of the oil return valve is maintained; if the liquid level is lower than the second threshold, the current opening of the oil return valve is increased, wherein the first A threshold is greater than the second threshold.
[0052] Figure 5 It is a schematic flow chart of Example 1 of the present invention, including:
[0053] Step S51, at an interval of t second...
example 2
[0060] Example 2: The oil return system further includes: a second detection module, configured to periodically detect the pressure difference between the exhaust passage and the oil separator; a second control module, configured to control the pressure difference based on the pressure difference Describe the opening of the oil return valve.
[0061] In an example of this example, the second control module is specifically configured to: if the pressure difference is greater than or equal to a third threshold, adjust the current opening of the oil return valve to 0; if the pressure difference is less than The third threshold and greater than or equal to the fourth threshold, adjust the current opening of the oil return valve to the first opening; if the pressure difference is less than the fourth threshold and greater than or equal to the fifth threshold, adjust the oil return valve The current opening of the valve is adjusted to the second opening; if the pressure difference i...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More