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Air-conditioner system and control method of air-conditioner system

A control method and technology for an air conditioner, which are applied in the control of an air conditioner system and in the field of an air conditioner system, can solve the problems of poor heating effect of the air conditioner, reduction of refrigerant heat, easy frost formation, etc., so as to enhance the low temperature heating capacity, The effect of improving the overall heat exchange and increasing the evaporation pressure

Active Publication Date: 2017-01-04
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the air conditioner is running in a low-temperature environment, the temperature of the outdoor heat exchanger is relatively low, and it is easy to frost, which will greatly reduce the heat absorbed by the refrigerant from the air, resulting in poor heating effect of the air conditioner and affecting users. The effect of using
[0003] At the same time, due to the long piping of the multi-connected air conditioning system, the large drop, and the complexity of the system, the compressor must be in an effective lubrication state at all times to ensure the reliable operation of the system.
If the compressor is in a low-load operation state for a long time, the lubricating oil in the system cannot be returned to the compressor in time, which will cause the compressor to be damaged due to poor lubrication, which will affect the reliability of the entire unit

Method used

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  • Air-conditioner system and control method of air-conditioner system

Examples

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Effect test

Embodiment 1

[0114] In one embodiment of the present invention, in step S44, according to the operating mode of the air conditioner system, the detected outdoor ambient temperature and the exhaust superheat, the first throttling component, the second The step of controlling the throttling component and the second four-way valve specifically includes:

[0115] If the air conditioner system is in heating operation, and it is detected that the outdoor ambient temperature is less than or equal to the first set temperature value, the exhaust superheat of the compressor is less than or equal to the first set superheat and lasts for the first For a predetermined period of time, the first throttling component and the second throttling component are controlled to open, and the second port of the second four-way valve is controlled to communicate with the fourth port.

[0116] In this embodiment, through the heating operation of the air conditioner system, the outdoor ambient temperature is less tha...

Embodiment 2

[0120] According to an embodiment of the present invention, in step S44, according to the operating mode of the air conditioner system and whether the air conditioner system is in a light load operating state, the first throttling component and the second throttling component are The step of controlling specifically includes: when the air conditioner system is in heating operation and it is determined that the air conditioner system is in a small-load operation state, controlling the opening of the first throttling component and the second throttling component, and controlling The first port of the second four-way valve communicates with the fourth port.

[0121] In this embodiment, when the air conditioner system is heating and in a small load operating state, the first throttling part and the second throttling part are controlled to open, and the first port and the fourth port of the second four-way valve are controlled. The port is connected, so that the refrigerant after t...

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Abstract

The invention provides an air-conditioner system and a control method of the air-conditioner system. The air-conditioner system comprises a refrigerating system. A first port of a second four-way valve is connected to a pipeline between a first four-way valve and an indoor heat exchanger, and a second port of the second four-way valve is connected to a first position of a pipeline between the indoor heat exchanger and an outer heat exchanger. A first port of a first channel of an auxiliary heat exchanger communicates with a fourth port of the second four-way valve, a second port of the first channel is connected to a second position of the pipeline between the indoor heat exchanger and the outdoor heat exchanger, a first port of a second channel is connected to a third position of the pipeline between the indoor heat exchanger and the outdoor heat exchanger, and a second port of the second channel is connected to a pipeline between the outdoor heat exchanger and an air return port of a compressor. A first throttling component is arranged on a pipeline of the first channel. A second throttling component is arranged on a pipeline between the first port of the second channel and the third position.

Description

technical field [0001] The present invention relates to the technical field of air conditioners, in particular to an air conditioner system and a control method for the air conditioner system. Background technique [0002] With the improvement of people's living standards and the enhancement of energy-saving awareness, air conditioners have gradually been widely popularized. When the air conditioner is running in a low-temperature environment, the temperature of the outdoor heat exchanger is relatively low, and it is easy to frost, which will greatly reduce the heat absorbed by the refrigerant from the air, resulting in poor heating effect of the air conditioner and affecting users. use effect. [0003] At the same time, due to the long piping of the multi-connected air conditioning system, the large drop, and the complexity of the system, the compressor must be in an effective lubrication state at all times to ensure the reliable operation of the system. If the compressor...

Claims

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Application Information

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IPC IPC(8): F25B13/00F25B41/06F25B49/02F25B41/34
CPCF25B13/00F25B49/02F25B2313/02741F25B2600/2513F25B2700/21F25B41/34F25B2313/02742F25B2313/02743F25B2500/31F25B2600/2509F25B2700/1931F25B2700/2106F25B2700/21152Y02B30/70F24F11/74F24F11/84F24F11/86F24F13/20
Inventor 王新利许永锋熊美兵冯明坤李根
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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