Method and device for switching modes of three-cylinder compressor
A mode switching and compressor technology, applied in lighting and heating equipment, fluid heaters, etc., can solve problems such as failure to achieve results, errors, and no solutions proposed
Active Publication Date: 2020-06-02
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
[0005] At present, mode switching is generally based on calculating the frequency switching point based on sensor parameters. However, due to parameters such as sensor errors, errors will occur in the actual implementation process, and often fail to achieve good results.
[0006] For how to switch modes accurately and efficiently, no effective solution has been proposed so far
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[0056] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.
[0057] In order to make the multi-functional hot water machine respond to the existing load changes in a timely manner when using the three-cylinder variable capacity compressor, and improve the operation reliability of the load frequency switching point, switch modes according to the real-time load demand, and realize the energy-saving operation of the unit. In this example, the reverse correction frequency switching point is comprehensively calculated by collecting real-time running frequency and running time parameters. Because the real-time operating frequency and operating time can represe...
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The invention provides a method and device for switching the modes of a three-cylinder compressor. The method comprises the steps of acquiring the maximum operation frequency and maximum frequency operation time of the three-cylinder compressor when operating in a three-cylinder mode; correcting a frequency switching point according to the maximum operation frequency and maximum frequency operation time; and performing switching between the three-cylinder mode and a dual-cylinder mode of the three-cylinder compressor based on the corrected frequency switching point. According to the scheme, the problem is solved that since an existing three-cylinder compressor cannot accurately switch the dual-cylinder mode and the three-cylinder mode, energy saving and high-load operation cannot be simultaneously achieved. It is guaranteed that the modes of the three-cylinder compressor can be reasonably switched, and thus the technical effects of energy saving and high-load stable operation are simultaneously achieved.
Description
technical field [0001] The invention relates to the technical field of equipment control, in particular to a mode switching method and device for a three-cylinder compressor. Background technique [0002] At present, multifunctional water heaters are generally used in cold areas, that is, areas around minus 15°C. Under this working condition, the general two-cylinder compressor can be satisfied, and its compression ratio of about 2.6 can avoid high-load failures under this working condition. However, the two-cylinder compressor can only meet the general heating demand, and it is difficult to meet the two demands of performance and reliability. [0003] Furthermore, if it is a more severe operating condition, it is often difficult for the two-cylinder compressor to meet the basic needs of the user. For example, if the temperature is below -15°C, the compression ratio of the compressor will not be able to meet this operating demand, and the compressor will appear Insufficien...
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IPC IPC(8): F24H4/02F24H9/20
CPCF24H4/02F24H9/2007
Inventor 朱俊威胡乾龙马定超黄承杰曾凡卓袁占彪
Owner GREE ELECTRIC APPLIANCES INC