Double-cylinder variable-capacity air conditioning system and control method
An air-conditioning system and variable-capacity compressor technology, which is applied to control input involving air characteristics, space heating and ventilation control input, heating and ventilation control systems, etc., can solve problems such as the inability to switch between single and double-cylinder compressors smoothly. , to achieve the effect of small temperature difference fluctuation, improved cooling and heating speed, and smooth adjustment
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[0032] Example 1
[0033] like figure 1 As shown, the dual-cylinder variable-capacity air conditioning system of the present invention includes a dual-cylinder variable-capacity compressor 1, a four-way valve 2, an outdoor heat exchanger 4, a throttle assembly 5 and an indoor heat exchanger 6 connected in a loop. The dual-cylinder variable capacity compressor 1 has a main cylinder intake port 10, an auxiliary cylinder intake port 11 and an exhaust port 12; the air conditioning system further includes an electronic expansion valve 8, one end of the electronic expansion valve 8 is connected to the double cylinder The exhaust port 12 of the cylinder variable capacity compressor 1, and the other end is respectively connected to the main cylinder suction port 10 and the auxiliary cylinder suction port 11 of the double-cylinder variable capacity compressor through the three-way valve 7; the outdoor heat exchanger 4. A temperature sensor 41 is provided to detect the temperature of t...
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[0038] Embodiment 2
[0039] like figure 2 As shown, the dual-cylinder variable-capacity air conditioning system of the present invention includes a dual-cylinder variable-capacity compressor 1, a four-way valve 2, an outdoor heat exchanger 4, a throttle assembly 5 and an indoor heat exchanger 6 connected in a loop. The dual-cylinder variable capacity compressor 1 has a main cylinder intake port 10, an auxiliary cylinder intake port 11 and an exhaust port 12; the air conditioning system further includes an electronic expansion valve 8, one end of the electronic expansion valve 8 is connected to the double cylinder The exhaust port 12 of the cylinder variable capacity compressor 1, and the other end is respectively connected to the main cylinder suction port 10 and the auxiliary cylinder suction port 11 of the double-cylinder variable capacity compressor through the three-way valve 7; The pipeline between the compressor discharge port 12 and the outdoor heat exchanger 4 is pr...
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