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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

Active Publication Date: 2017-02-15
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that when the air conditioning system is running, it is impossible to switch between single and double cylinder compressors smoothly.

Method used

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  • Double-cylinder variable-capacity air conditioning system and control method
  • Double-cylinder variable-capacity air conditioning system and control method
  • Double-cylinder variable-capacity air conditioning system and control method

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Embodiment 1

[0033] Such as figure 1 As shown, the two-cylinder variable-capacity air-conditioning system of the present invention includes a two-cylinder variable-capacity compressor 1, a four-way valve 2, an outdoor heat exchanger 4, a throttling assembly 5 and an indoor heat exchanger 6 connected in a circuit. The double-cylinder variable capacity compressor 1 has a main cylinder suction port 10, an auxiliary cylinder suction port 11 and an exhaust port 12; the air conditioning system also includes an electronic expansion valve 8, and one end of the electronic expansion valve 8 is connected to the dual cylinder The exhaust port 12 of the cylinder variable capacity compressor 1 is connected to the main cylinder suction port 10 and the auxiliary cylinder suction port 11 of the two-cylinder variable capacity compressor through a three-way valve 7 at the other end; the outdoor heat exchanger 4. A temperature sensor 41 is provided to detect the temperature of the outdoor heat exchanger coil....

Embodiment 2

[0039] Such as figure 2 As shown, the two-cylinder variable-capacity air-conditioning system of the present invention includes a two-cylinder variable-capacity compressor 1, a four-way valve 2, an outdoor heat exchanger 4, a throttling assembly 5 and an indoor heat exchanger 6 connected in a circuit. The double-cylinder variable capacity compressor 1 has a main cylinder suction port 10, an auxiliary cylinder suction port 11 and an exhaust port 12; the air conditioning system also includes an electronic expansion valve 8, and one end of the electronic expansion valve 8 is connected to the dual cylinder The exhaust port 12 of the cylinder variable capacity compressor 1 is 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 respectively; The pipeline between the compressor discharge port 12 and the outdoor heat exchanger 4 is provided with a pressure sensor 3, ...

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Abstract

The invention relates to a double-cylinder variable-capacity air conditioning system and a control method thereof. The double-cylinder variable-capacity air conditioning system comprises a double-cylinder variable-capacity compressor, a four-way valve, an outdoor heat exchanger, a throttling assembly and an indoor heat exchanger which are connected to be a loop, and further comprises an electronic expansion valve, wherein the outdoor heat exchanger is equipped with a temperature sensor for detecting the temperature of an outdoor heat exchanger coil pipe; and a pressure sensor for detecting pressure of the air conditioning system is arranged on a pipeline between a gas outlet of the double-cylinder variable-capacity compressor and the outdoor heat exchanger. According to the double-cylinder variable-capacity air conditioning system and the control method thereof, stable regulation can be carried out according to practical parameters to keep temperature stability, so that temperature difference fluctuation is small; and the double-cylinder variable-capacity air conditioning system saves energy and is comfortable, and reliability of the system is improved.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a double-cylinder variable capacity air conditioning system and a control method thereof. Background technique [0002] Inverter air conditioners can adjust the operating frequency within a certain range as the load changes to change the output capacity. When the frequency is high, it can achieve rapid cooling or heating, and when the frequency is low, the output is reduced to achieve the purpose of energy saving. However, if a single-cylinder compressor is used for ordinary inverter air conditioners, the vibration and noise are relatively large during high-frequency operation, which has a great impact on the reliability of the whole machine. At the same time, due to noise restrictions, the maximum operating frequency of the air conditioning system cannot be too high. The capacity of the air conditioning system cannot be maximized. [0003] Currently, a fixed-speed var...

Claims

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Application Information

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IPC IPC(8): F25B13/00F25B41/06F24F11/00F25B41/31
CPCF24F11/30F24F2110/00F25B13/00F25B41/31Y02B30/70
Inventor 杨晓东韦汉儒李杏党
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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